MM-54416: Channel Bookmarks Web UI (#25889)

Co-authored-by: Mattermost Build <build@mattermost.com>
Co-authored-by: Elias Nahum <nahumhbl@gmail.com>
Co-authored-by: Miguel de la Cruz <miguel@mcrx.me>
Co-authored-by: Scott Bishel <scott.bishel@mattermost.com>

e2e-tests/cypress/tests/integration/channels/channel/channel_bookmarks_spec.ts

@@ -0,0 +1,277 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+// ***************************************************************
+// - [#] indicates a test step (e.g. # Go to a page)
+// - [*] indicates an assertion (e.g. * Check the title)
+// - Use element ID when selecting an element. Create one if none.
+// ***************************************************************
+
+// Group: @channels @channel @channel_bookmarks
+// node run_tests.js --group='@channel'
+
+import {getRandomId} from '../../../utils';
+import * as TIMEOUTS from '../../../fixtures/timeouts';
+
+describe('Channel Bookmarks', () => {
+    let testTeam: Cypress.Team;
+
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    let user1: Cypress.UserProfile;
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    let admin: Cypress.UserProfile;
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    let channel: Cypress.Channel;
+
+    before(() => {
+        cy.apiGetMe().then(({user: adminUser}) => {
+            admin = adminUser;
+
+            cy.apiInitSetup().then(({team, user}) => {
+                testTeam = team;
+                user1 = user;
+
+                cy.visit(`/${testTeam.name}/channels/town-square`);
+                cy.getCurrentChannelId().then((channelId) => {
+                    cy.makeClient().then(async (client) => {
+                        channel = await client.getChannel(channelId);
+                    });
+                });
+            });
+        });
+    });
+
+    it('create link bookmark', () => {
+        // # Create link
+        const {link, realLink} = createLinkBookmark();
+
+        cy.findByTestId('channel-bookmarks-container').within(() => {
+            // * Verify href
+            cy.findByRole('link', {name: link}).should('have.attr', 'href', realLink);
+        });
+    });
+
+    it('create link bookmark, with emoji and custom title', () => {
+        const {realLink, displayName, emojiName} = createLinkBookmark({displayName: 'custom display name', emojiName: 'smile'});
+
+        cy.findByTestId('channel-bookmarks-container').within(() => {
+            // * Verify emoji, displayname, and href
+            cy.findAllByRole('link', {name: `:${emojiName}: ${displayName}`}).should('have.attr', 'href', realLink);
+        });
+    });
+
+    it('create file bookmark, and open preview', () => {
+        // # Create bookmark
+        const {file} = createFileBookmark({file: 'small-image.png'});
+
+        // * Verify preview icon
+        cy.findAllByRole('link', {name: file}).as('link').find('.file-icon.image');
+
+        // # Open preview
+        cy.get('@link').click();
+
+        // * Verify preview opened
+        cy.get('.file-preview-modal').findByRole('heading', {name: file});
+        cy.get('.file-preview-modal__file-details-user-name').should('have.text', admin.username);
+        cy.get('.file-preview-modal__channel').should('have.text', `Shared in ~${channel.display_name}`);
+        cy.get('.icon-close').click();
+    });
+
+    it('create file bookmark, progress and cancel upload', () => {
+        const file = 'powerpointx-file.pptx';
+
+        cy.intercept(
+            {method: 'POST', pathname: 'files', middleware: true, times: 1},
+            () => {
+                return new Promise((resolve) =>
+                    setTimeout(() => resolve(), 2000),
+                );
+            }).as('uploadRequest');
+
+        // # Create bookmark
+        createFileBookmark({file, save: false});
+
+        // # Cancel upload
+        cy.get('a.file-preview__remove').click();
+
+        // * Verify empty preview container
+        cy.get('.file-preview__container.empty');
+
+        // * Verify upload cancelled
+        cy.wait('@uploadRequest').its('state').should('eq', 'Errored');
+
+        // * Verify cannot save
+        cy.findByRole('button', {name: 'Add bookmark'}).should('be.disabled');
+
+        // # Try upload file again
+        cy.get('#bookmark-create-file-input-in-modal').attachFile(file);
+
+        // * Verify uploaded
+        cy.findByTestId('titleInput').should('have.value', file);
+        cy.findByRole('link', {name: `file thumbnail ${file}`});
+
+        // # Save
+        editModalCreate();
+
+        // * Verify bookmark created
+        cy.findAllByRole('link', {name: file});
+    });
+
+    it('create file bookmark, with emoji and custom title', () => {
+        // # Create bookmark
+        const {file, displayName, emojiName} = createFileBookmark({file: 'm4a-audio-file.m4a', displayName: 'custom displayname small-image', emojiName: 'smile'});
+
+        // * Verify emoji and custom display name
+        cy.findAllByRole('link', {name: `:${emojiName}: ${displayName}`}).click();
+
+        // * Verify preview opened
+        cy.get('.file-preview-modal').findByRole('heading', {name: file});
+        cy.get('.icon-close').click();
+    });
+
+    it('edit link bookmark', () => {
+        // # Create link
+        const {displayName} = createLinkBookmark();
+
+        const nextLink = 'google.com/q=test001';
+        const realNextLink = `http://${nextLink}`;
+        const nextDisplayName = 'Next custom display name';
+        const nextEmojiName = 'handshake';
+
+        // # Open edit
+        openEditModal(displayName);
+
+        // # Change link, displayname, emoji
+        editTextInput('linkInput', nextLink);
+        editTextInput('titleInput', nextDisplayName);
+        selectEmoji(nextEmojiName);
+
+        // # Save
+        editModalSave();
+
+        // * Verify changes
+        cy.findAllByRole('link', {name: `:${nextEmojiName}: ${nextDisplayName}`}).should('have.attr', 'href', realNextLink);
+    });
+
+    it('delete bookmark', () => {
+        const {displayName} = createLinkBookmark();
+
+        // * Verify bookmark exists
+        cy.findByRole('link', {name: displayName});
+
+        // # Start delete bookmark flow
+        openDotMenu(displayName);
+        cy.findByRole('menuitem', {name: 'Delete'}).click();
+        cy.findByRole('dialog', {name: 'Delete bookmark'}).within(() => {
+            // * Verify delete dialog contents
+            cy.findByRole('heading', {name: 'Delete bookmark'});
+            cy.contains(`Are you sure you want to delete the bookmark ${displayName}?`);
+
+            // # Delete bookmark
+            cy.findByRole('button', {name: 'Yes, delete'}).click();
+        });
+
+        // * Verify bookmark deleted
+        cy.findByRole('link', {name: displayName}).should('not.exist');
+    });
+});
+
+function promptAddLink() {
+    cy.get('#channelBookmarksPlusMenuButton').click();
+    cy.get('#channelBookmarksAddLink').click();
+}
+
+function openEditModal(name: string) {
+    openDotMenu(name);
+    cy.findByRole('menuitem', {name: 'Edit'}).click();
+}
+
+function openDotMenu(name: string) {
+    cy.findByTestId('channel-bookmarks-container').within(() => {
+        // # open menu
+        cy.findByRole('link', {name}).scrollIntoView().focus().
+            parent('div').find('button').click();
+    });
+}
+
+function editModalSave() {
+    cy.findByRole('button', {name: 'Save bookmark'}).click();
+}
+
+function editModalCreate() {
+    cy.findByRole('button', {name: 'Add bookmark'}).click();
+}
+
+function createLinkBookmark({
+    link = `google.com/?q=test${getRandomId(7)}`,
+    displayName = '',
+    emojiName = '', // e.g. smile
+    save = true,
+} = {}) {
+    const realLink = `http://${link}`;
+
+    // # Add link
+    promptAddLink();
+
+    // # Enter link
+    editTextInput('linkInput', link);
+
+    if (displayName) {
+        // # Enter displayname
+        editTextInput('titleInput', displayName);
+    }
+
+    if (emojiName) {
+        // # Select emoji
+        selectEmoji(emojiName);
+    }
+
+    if (save) {
+        // # Save
+        editModalCreate();
+    }
+
+    return {link, realLink, displayName: displayName || link, emojiName};
+}
+
+function createFileBookmark({
+    file = 'small-image.png',
+    displayName = '',
+    emojiName = '', // e.g. smile
+    save = true,
+} = {}) {
+    cy.get('#bookmark-create-file-input').attachFile(file);
+
+    if (displayName) {
+        // # Enter displayname
+        cy.findByTestId('titleInput').should('have.value', file);
+        editTextInput('titleInput', displayName);
+    }
+
+    if (emojiName) {
+        // # Select emoji
+        selectEmoji(emojiName);
+    }
+
+    if (save) {
+        // # Save
+        cy.findByRole('button', {name: 'Add bookmark'}).click();
+    }
+
+    return {file, displayName, emojiName};
+}
+
+function editTextInput(testid: string, nextValue: string) {
+    cy.findByTestId(testid).
+        focus().
+        clear().
+        wait(TIMEOUTS.HALF_SEC).
+        type(nextValue).
+        wait(TIMEOUTS.HALF_SEC).
+        should('have.value', nextValue);
+}
+
+function selectEmoji(emojiName: string) {
+    cy.findByRole('button', {name: 'select an emoji'}).click();
+    cy.focused().type(`${emojiName}{downArrow}{enter}`);
+}

webapp/channels/src/actions/channel_actions.ts

@@ -174,3 +174,4 @@ export function muteChannel(userId: UserProfile['id'], channelId: Channel['id'])
         mark_unread: NotificationLevels.MENTION,
     });
 }
+

webapp/channels/src/actions/channel_bookmarks.ts

@@ -0,0 +1,39 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import type {ChannelBookmarkCreate, ChannelBookmarkPatch} from '@mattermost/types/channel_bookmarks';
+
+import * as ChannelBookmarkActions from 'mattermost-redux/actions/channel_bookmarks';
+import type {DispatchFunc, GetStateFunc} from 'mattermost-redux/types/actions';
+
+import {getConnectionId} from 'selectors/general';
+
+import type {GlobalState} from 'types/store';
+
+export function deleteBookmark(channelId: string, id: string) {
+    return async (dispatch: DispatchFunc, getState: GetStateFunc) => {
+        const state = getState() as GlobalState;
+        const connectionId = getConnectionId(state);
+        return dispatch(ChannelBookmarkActions.deleteBookmark(channelId, id, connectionId));
+    };
+}
+
+export function createBookmark(channelId: string, bookmark: ChannelBookmarkCreate) {
+    return async (dispatch: DispatchFunc, getState: GetStateFunc) => {
+        const state = getState() as GlobalState;
+        const connectionId = getConnectionId(state);
+        return dispatch(ChannelBookmarkActions.createBookmark(channelId, bookmark, connectionId));
+    };
+}
+
+export function editBookmark(channelId: string, id: string, patch: ChannelBookmarkPatch) {
+    return async (dispatch: DispatchFunc, getState: GetStateFunc) => {
+        const state = getState() as GlobalState;
+        const connectionId = getConnectionId(state);
+        return dispatch(ChannelBookmarkActions.editBookmark(channelId, id, patch, connectionId));
+    };
+}
+
+export function fetchChannelBookmarks(channelId: string) {
+    return ChannelBookmarkActions.fetchChannelBookmarks(channelId);
+}

webapp/channels/src/actions/file_actions.ts

@@ -28,13 +28,18 @@ export interface UploadFile {
     onError: (err: string | ServerError, clientId: string, channelId: string, rootId: string) => void;
 }
 
-export function uploadFile({file, name, type, rootId, channelId, clientId, onProgress, onSuccess, onError}: UploadFile): ThunkActionFunc<XMLHttpRequest> {
+export function uploadFile({file, name, type, rootId, channelId, clientId, onProgress, onSuccess, onError}: UploadFile, isBookmark?: boolean): ThunkActionFunc<XMLHttpRequest> {
     return (dispatch, getState) => {
         dispatch({type: FileTypes.UPLOAD_FILES_REQUEST});
 
+        let url = Client4.getFilesRoute();
+        if (isBookmark) {
+            url += '?bookmark=true';
+        }
+
         const xhr = new XMLHttpRequest();
 
-        xhr.open('POST', Client4.getFilesRoute(), true);
+        xhr.open('POST', url, true);
 
         const client4Headers = Client4.getOptions({method: 'POST'}).headers;
         Object.keys(client4Headers).forEach((client4Header) => {

webapp/channels/src/actions/websocket_actions.jsx

@@ -20,6 +20,7 @@ import {
     AppsTypes,
     CloudTypes,
     HostedCustomerTypes,
+    ChannelBookmarkTypes,
 } from 'mattermost-redux/action_types';
 import {getStandardAnalytics} from 'mattermost-redux/actions/admin';
 import {fetchAppBindings, fetchRHSAppsBindings} from 'mattermost-redux/actions/apps';
@@ -432,6 +433,22 @@ export function handleEvent(msg) {
         handleChannelMemberUpdatedEvent(msg);
         break;
 
+    case SocketEvents.CHANNEL_BOOKMARK_CREATED:
+        dispatch(handleChannelBookmarkCreated(msg));
+        break;
+
+    case SocketEvents.CHANNEL_BOOKMARK_UPDATED:
+        dispatch(handleChannelBookmarkUpdated(msg));
+        break;
+
+    case SocketEvents.CHANNEL_BOOKMARK_DELETED:
+        dispatch(handleChannelBookmarkDeleted(msg));
+        break;
+
+    case SocketEvents.CHANNEL_BOOKMARK_SORTED:
+        dispatch(handleChannelBookmarkSorted(msg));
+        break;
+
     case SocketEvents.DIRECT_ADDED:
         dispatch(handleDirectAddedEvent(msg));
         break;
@@ -1755,3 +1772,50 @@ function handleHostedCustomerSignupProgressUpdated(msg) {
         data: msg.data.progress,
     };
 }
+
+function handleChannelBookmarkCreated(msg) {
+    const bookmark = JSON.parse(msg.data.bookmark);
+
+    return {
+        type: ChannelBookmarkTypes.RECEIVED_BOOKMARK,
+        data: bookmark,
+    };
+}
+
+function handleChannelBookmarkUpdated(msg) {
+    return async (doDispatch) => {
+        const {updated, deleted} = JSON.parse(msg.data.bookmarks);
+
+        if (updated) {
+            doDispatch({
+                type: ChannelBookmarkTypes.RECEIVED_BOOKMARK,
+                data: updated,
+            });
+        }
+
+        if (deleted) {
+            doDispatch({
+                type: ChannelBookmarkTypes.BOOKMARK_DELETED,
+                data: deleted,
+            });
+        }
+    };
+}
+
+function handleChannelBookmarkDeleted(msg) {
+    const bookmark = JSON.parse(msg.data.bookmark);
+
+    return {
+        type: ChannelBookmarkTypes.BOOKMARK_DELETED,
+        data: bookmark,
+    };
+}
+
+function handleChannelBookmarkSorted(msg) {
+    const bookmarks = JSON.parse(msg.data.bookmarks);
+
+    return {
+        type: ChannelBookmarkTypes.RECEIVED_BOOKMARKS,
+        data: {channelId: msg.broadcast.channel_id, bookmarks},
+    };
+}

webapp/channels/src/components/admin_console/license_settings/__snapshots__/license_settings.test.tsx.snap

@@ -63,21 +63,21 @@ exports[`components/admin_console/license_settings/LicenseSettings load screen a
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -167,21 +167,21 @@ exports[`components/admin_console/license_settings/LicenseSettings load screen w
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -285,21 +285,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -328,13 +328,13 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="compare-plans-text"
           >
             Curious about upgrading? 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/pricing/"
               id="privacyLink"
               location="license_settings"
             >
               Compare Plans
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
       </div>
@@ -420,21 +420,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -543,21 +543,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -666,21 +666,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -789,21 +789,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -912,21 +912,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -1044,13 +1044,13 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="compare-plans-text"
           >
             Curious about upgrading? 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/pricing/"
               id="privacyLink"
               location="license_settings"
             >
               Compare Plans
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
       </div>
@@ -1127,21 +1127,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -1156,13 +1156,13 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="compare-plans-text"
           >
             Curious about upgrading? 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/pricing/"
               id="privacyLink"
               location="license_settings"
             >
               Compare Plans
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
       </div>
@@ -1239,21 +1239,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -1268,13 +1268,13 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="compare-plans-text"
           >
             Curious about upgrading? 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/pricing/"
               id="privacyLink"
               location="license_settings"
             >
               Compare Plans
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
       </div>
@@ -1346,21 +1346,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -1448,21 +1448,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -1486,13 +1486,13 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="compare-plans-text"
           >
             Curious about upgrading? 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/pricing/"
               id="privacyLink"
               location="license_settings"
             >
               Compare Plans
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
       </div>
@@ -1554,21 +1554,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -1583,13 +1583,13 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="compare-plans-text"
           >
             Curious about upgrading? 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/pricing/"
               id="privacyLink"
               location="license_settings"
             >
               Compare Plans
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
       </div>
@@ -1659,21 +1659,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div
@@ -1783,21 +1783,21 @@ exports[`components/admin_console/license_settings/LicenseSettings should match
             className="terms-and-policy"
           >
             See also 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/terms-of-use/"
               id="privacyLink"
               location="license_settings"
             >
               Enterprise Edition Terms of Use
-            </ExternalLink>
+            </ForwardRef>
              and 
-            <ExternalLink
+            <ForwardRef
               href="https://mattermost.com/pl/privacy-policy/"
               id="privacyLink"
               location="license_settings"
             >
               Privacy Policy
-            </ExternalLink>
+            </ForwardRef>
           </div>
         </div>
         <div

webapp/channels/src/components/admin_console/openid_convert/__snapshots__/openid_convert.test.tsx.snap

@@ -35,7 +35,7 @@ exports[`components/OpenIdConvert should match snapshot 1`] = `
           id="admin.openIdConvert.text"
         />
       </button>
-      <ExternalLink
+      <ForwardRef
         className="btn-secondary"
         data-testid="openIdLearnMore"
         href="https://www.mattermost.com/default-openid-docs"
@@ -45,7 +45,7 @@ exports[`components/OpenIdConvert should match snapshot 1`] = `
           defaultMessage="Learn more"
           id="admin.openIdConvert.help"
         />
-      </ExternalLink>
+      </ForwardRef>
       <div
         className="error-message"
         data-testid="errorMessage"

webapp/channels/src/components/channel_bookmarks/bookmark_create_modal.scss

@@ -0,0 +1,20 @@
+.app__body .modal .GenericModal.channel-bookmarks-create-modal .modal-body .form-control {
+    height: 40px;
+    border: unset;
+}
+
+.channel-bookmarks-create-modal {
+    .linkInput {
+        margin-bottom: 3rem;
+        color: rgba(var(--center-channel-color-rgb), 0.72);
+    }
+
+    .Input___customMessage {
+        line-height: 14px;
+    }
+
+    .LoadingSpinner {
+        padding: 10px 12px;
+        font-size: 16px;
+    }
+}

webapp/channels/src/components/channel_bookmarks/bookmark_delete_modal.tsx

@@ -0,0 +1,62 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import React from 'react';
+import {FormattedMessage, useIntl} from 'react-intl';
+
+import {GenericModal} from '@mattermost/components';
+
+type Props = {
+    displayName: string;
+    onConfirm: () => void;
+    onCancel?: () => void;
+    onExited: () => void;
+}
+
+const noop = () => {};
+
+function BookmarkDeleteModal({
+    displayName,
+    onExited,
+    onCancel,
+    onConfirm,
+}: Props) {
+    const {formatMessage} = useIntl();
+
+    const title = formatMessage({
+        id: 'channel_bookmarks.confirm.delete.title',
+        defaultMessage: 'Delete bookmark',
+    });
+
+    const confirmButtonText = formatMessage({
+        id: 'channel_bookmarks.confirm.delete.button',
+        defaultMessage: 'Yes, delete',
+    });
+
+    const message = (
+        <FormattedMessage
+            id={'channel_bookmarks.confirm.delete.text'}
+            defaultMessage={'Are you sure you want to delete the bookmark <strong>{displayName}</strong>?'}
+            values={{
+                strong: (chunk: string) => <strong>{chunk}</strong>,
+                displayName,
+            }}
+        />
+    );
+
+    return (
+        <GenericModal
+            confirmButtonText={confirmButtonText}
+            handleCancel={onCancel ?? noop}
+            handleConfirm={onConfirm}
+            modalHeaderText={title}
+            onExited={onExited}
+            compassDesign={true}
+            isDeleteModal={true}
+        >
+            {message}
+        </GenericModal>
+    );
+}
+
+export default BookmarkDeleteModal;

webapp/channels/src/components/channel_bookmarks/bookmark_dot_menu.tsx

@@ -0,0 +1,176 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import React, {useCallback} from 'react';
+import {useIntl} from 'react-intl';
+import {useDispatch} from 'react-redux';
+
+import {
+    DotsHorizontalIcon,
+    PencilOutlineIcon,
+    LinkVariantIcon,
+    TrashCanOutlineIcon,
+    ArrowExpandIcon,
+    OpenInNewIcon,
+    BookOutlineIcon,
+} from '@mattermost/compass-icons/components';
+import type {ChannelBookmark, ChannelBookmarkPatch} from '@mattermost/types/channel_bookmarks';
+
+import type {ActionResult} from 'mattermost-redux/types/actions';
+import {getFileDownloadUrl} from 'mattermost-redux/utils/file_utils';
+
+import {editBookmark, deleteBookmark} from 'actions/channel_bookmarks';
+import {openModal} from 'actions/views/modals';
+
+import GetPublicModal from 'components/get_public_link_modal';
+import * as Menu from 'components/menu';
+
+import {ModalIdentifiers} from 'utils/constants';
+import {getSiteURL, shouldOpenInNewTab} from 'utils/url';
+import {copyToClipboard} from 'utils/utils';
+
+import BookmarkDeleteModal from './bookmark_delete_modal';
+import ChannelBookmarksCreateModal from './channel_bookmarks_create_modal';
+import {useCanGetPublicLink, useChannelBookmarkPermission} from './utils';
+
+type Props = {bookmark: ChannelBookmark; open: () => void};
+const BookmarkItemDotMenu = ({
+    bookmark,
+    open,
+}: Props) => {
+    const {formatMessage} = useIntl();
+    const dispatch = useDispatch();
+
+    const siteURL = getSiteURL();
+    const openInNewTab = bookmark.type === 'link' && bookmark.link_url && shouldOpenInNewTab(bookmark.link_url, siteURL);
+
+    let openIcon;
+    if (bookmark.type === 'file') {
+        openIcon = <ArrowExpandIcon size={18}/>;
+    } else if (bookmark.link_url) {
+        openIcon = openInNewTab ? <OpenInNewIcon size={18}/> : <BookOutlineIcon size={18}/>;
+    }
+
+    const canEdit = useChannelBookmarkPermission(bookmark.channel_id, 'edit');
+    const canDelete = useChannelBookmarkPermission(bookmark.channel_id, 'delete');
+    const canGetPublicLink = useCanGetPublicLink();
+
+    const editLabel = formatMessage({id: 'channel_bookmarks.edit', defaultMessage: 'Edit'});
+    const openLabel = formatMessage({id: 'channel_bookmarks.open', defaultMessage: 'Open'});
+    const copyLinkLabel = formatMessage({id: 'channel_bookmarks.copy', defaultMessage: 'Copy link'});
+    const copyFileLabel = formatMessage({id: 'channel_bookmarks.copyFilePublicLink', defaultMessage: 'Get a public link'});
+    const deleteLabel = formatMessage({id: 'channel_bookmarks.delete', defaultMessage: 'Delete'});
+
+    const handleEdit = useCallback(() => {
+        dispatch(openModal({
+            modalId: ModalIdentifiers.CHANNEL_BOOKMARK_CREATE,
+            dialogType: ChannelBookmarksCreateModal,
+            dialogProps: {
+                bookmark,
+                channelId: bookmark.channel_id,
+                onConfirm: async (data: ChannelBookmarkPatch) => dispatch(editBookmark(bookmark.channel_id, bookmark.id, data)) as ActionResult<boolean>,
+            },
+        }));
+    }, [editBookmark, dispatch, bookmark]);
+
+    const copyLink = useCallback(() => {
+        if (bookmark.type === 'link' && bookmark.link_url) {
+            copyToClipboard(bookmark.link_url);
+        } else if (bookmark.type === 'file' && bookmark.file_id) {
+            copyToClipboard(getFileDownloadUrl(bookmark.file_id));
+        }
+    }, [bookmark.type, bookmark.link_url, bookmark.file_id]);
+
+    const handleDelete = useCallback(() => {
+        dispatch(openModal({
+            modalId: ModalIdentifiers.CHANNEL_BOOKMARK_DELETE,
+            dialogType: BookmarkDeleteModal,
+            dialogProps: {
+                displayName: bookmark.display_name,
+                onConfirm: () => dispatch(deleteBookmark(bookmark.channel_id, bookmark.id)),
+            },
+        }));
+    }, [deleteBookmark, dispatch, bookmark]);
+
+    const handleGetPublicLink = useCallback(() => {
+        if (!bookmark.file_id) {
+            return;
+        }
+
+        dispatch(openModal({
+            modalId: ModalIdentifiers.GET_PUBLIC_LINK_MODAL,
+            dialogType: GetPublicModal,
+            dialogProps: {
+                fileId: bookmark.file_id,
+            },
+        }));
+    }, [bookmark.file_id, dispatch]);
+
+    return (
+        <Menu.Container
+            anchorOrigin={{vertical: 'bottom', horizontal: 'right'}}
+            transformOrigin={{vertical: 'top', horizontal: 'right'}}
+            menuButton={{
+                id: `channelBookmarksDotMenuButton-${bookmark.id}`,
+                class: 'channelBookmarksDotMenuButton',
+                children: <DotsHorizontalIcon size={18}/>,
+                'aria-label': formatMessage({id: 'channel_bookmarks.editBookmarkLabel', defaultMessage: 'Bookmark menu'}),
+            }}
+            menu={{
+                id: 'channelBookmarksDotMenuDropdown',
+            }}
+        >
+            <Menu.Item
+                key='channelBookmarksOpen'
+                id='channelBookmarksOpen'
+                onClick={open}
+                leadingElement={openIcon}
+                labels={<span>{openLabel}</span>}
+                aria-label={openLabel}
+            />
+            {canEdit && (
+                <Menu.Item
+                    key='channelBookmarksEdit'
+                    id='channelBookmarksEdit'
+                    onClick={handleEdit}
+                    leadingElement={<PencilOutlineIcon size={18}/>}
+                    labels={<span>{editLabel}</span>}
+                    aria-label={editLabel}
+                />
+            )}
+            {bookmark.type === 'link' && (
+                <Menu.Item
+                    key='channelBookmarksLinkCopy'
+                    id='channelBookmarksLinkCopy'
+                    onClick={copyLink}
+                    leadingElement={<LinkVariantIcon size={18}/>}
+                    labels={<span>{copyLinkLabel}</span>}
+                    aria-label={copyLinkLabel}
+                />
+            )}
+            {bookmark.type === 'file' && canGetPublicLink && (
+                <Menu.Item
+                    key='channelBookmarksFileCopy'
+                    id='channelBookmarksFileCopy'
+                    onClick={handleGetPublicLink}
+                    leadingElement={<LinkVariantIcon size={18}/>}
+                    labels={<span>{copyFileLabel}</span>}
+                    aria-label={copyFileLabel}
+                />
+            )}
+            {canDelete && (
+                <Menu.Item
+                    key='channelBookmarksDelete'
+                    id='channelBookmarksDelete'
+                    onClick={handleDelete}
+                    leadingElement={<TrashCanOutlineIcon size={18}/>}
+                    labels={<span>{deleteLabel}</span>}
+                    aria-label={deleteLabel}
+                    isDestructive={true}
+                />
+            )}
+        </Menu.Container>
+    );
+};
+
+export default BookmarkItemDotMenu;

webapp/channels/src/components/channel_bookmarks/bookmark_icon.tsx

@@ -0,0 +1,92 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import React from 'react';
+import {useSelector} from 'react-redux';
+import styled from 'styled-components';
+
+import {FileGenericOutlineIcon, BookOutlineIcon} from '@mattermost/compass-icons/components';
+import type {ChannelBookmark} from '@mattermost/types/channel_bookmarks';
+import type {FileInfo} from '@mattermost/types/files';
+
+import {getConfig} from 'mattermost-redux/selectors/entities/general';
+
+import RenderEmoji from 'components/emoji/render_emoji';
+import FileThumbnail from 'components/file_attachment/file_thumbnail';
+import type {FilePreviewInfo} from 'components/file_preview/file_preview';
+
+import {trimmedEmojiName} from 'utils/emoji_utils';
+import {getImageSrc} from 'utils/post_utils';
+
+import type {GlobalState} from 'types/store';
+
+type Props = {
+    type: ChannelBookmark['type'];
+    emoji?: string;
+    imageUrl?: string;
+    fileInfo?: FileInfo | FilePreviewInfo;
+    size?: 16 | 24;
+}
+
+const BookmarkIcon = ({
+    type,
+    emoji,
+    imageUrl,
+    fileInfo,
+    size = 16,
+}: Props) => {
+    let icon = type === 'link' ? <BookOutlineIcon size={size}/> : <FileGenericOutlineIcon size={size}/>;
+    const emojiName = emoji && trimmedEmojiName(emoji);
+    const hasImageProxy = useSelector((state: GlobalState) => getConfig(state).HasImageProxy === 'true');
+
+    if (emojiName) {
+        icon = (
+            <RenderEmoji
+                emojiName={emojiName}
+                size={size}
+            />
+        );
+    } else if (imageUrl) {
+        icon = (
+            <BookmarkIconImg
+                src={getImageSrc(imageUrl, hasImageProxy)}
+                size={size}
+            />
+        );
+    } else if (fileInfo) {
+        icon = (
+            <FileThumbnail
+                fileInfo={fileInfo}
+                disablePreview={true}
+            />
+        );
+    }
+
+    return (
+        <Icon $size={size}>
+            {icon}
+        </Icon>
+    );
+};
+
+export default BookmarkIcon;
+
+const Icon = styled.div<{$size: number}>`
+    padding: 3px 1px 3px 2px;
+    flex-shrink: 0;
+    display: flex;
+    align-items: center;
+
+    .file-icon {
+        width: ${({$size: size}) => size}px;
+        height: ${({$size: size}) => size}px;
+        background-size: ${({$size: size}) => size * 0.8}px ${({$size: size}) => size}px;
+        margin-top: 1px;
+    }
+
+`;
+
+const BookmarkIconImg = styled.img<{size: number}>`
+    width: ${({size}) => size}px;
+    height: ${({size}) => size}px;
+`;

webapp/channels/src/components/channel_bookmarks/bookmark_item.tsx

@@ -0,0 +1,245 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import type {HTMLAttributes} from 'react';
+import React, {forwardRef, useRef} from 'react';
+import {useDispatch, useSelector} from 'react-redux';
+import {Link} from 'react-router-dom';
+import styled, {css} from 'styled-components';
+
+import type {ChannelBookmark} from '@mattermost/types/channel_bookmarks';
+import type {FileInfo} from '@mattermost/types/files';
+import type {Post} from '@mattermost/types/posts';
+
+import {getFile} from 'mattermost-redux/selectors/entities/files';
+import {getFileDownloadUrl} from 'mattermost-redux/utils/file_utils';
+
+import {openModal} from 'actions/views/modals';
+
+import ExternalLink from 'components/external_link';
+import FilePreviewModal from 'components/file_preview_modal';
+
+import {ModalIdentifiers} from 'utils/constants';
+import {getSiteURL, shouldOpenInNewTab} from 'utils/url';
+
+import type {GlobalState} from 'types/store';
+
+import BookmarkItemDotMenu from './bookmark_dot_menu';
+import BookmarkIcon from './bookmark_icon';
+
+type Props = {bookmark: ChannelBookmark};
+const BookmarkItem = <T extends HTMLAnchorElement>({bookmark}: Props) => {
+    const linkRef = useRef<T>(null);
+    const dispatch = useDispatch();
+    const fileInfo: FileInfo | undefined = useSelector((state: GlobalState) => (bookmark?.file_id && getFile(state, bookmark.file_id)) || undefined);
+
+    const open = () => {
+        linkRef.current?.click();
+    };
+
+    const handleOpenFile = (e: React.MouseEvent<HTMLAnchorElement>) => {
+        e.preventDefault();
+
+        if (fileInfo) {
+            dispatch(openModal({
+                modalId: ModalIdentifiers.FILE_PREVIEW_MODAL,
+                dialogType: FilePreviewModal,
+                dialogProps: {
+                    post: {user_id: bookmark.owner_id, channel_id: bookmark.channel_id} as Post,
+                    fileInfos: [fileInfo],
+                    startIndex: 0,
+                },
+            }));
+        }
+    };
+
+    const icon = (
+        <BookmarkIcon
+            type={bookmark.type}
+            emoji={bookmark.emoji}
+            imageUrl={bookmark.image_url}
+            fileInfo={fileInfo}
+        />
+    );
+    let link;
+
+    if (bookmark.type === 'link' && bookmark.link_url) {
+        link = (
+            <DynamicLink
+                href={bookmark.link_url}
+                ref={linkRef}
+                isFile={false}
+            >
+                {icon}
+                <Label>{bookmark.display_name}</Label>
+            </DynamicLink>
+        );
+    } else if (bookmark.type === 'file' && bookmark.file_id) {
+        link = (
+            <DynamicLink
+                href={getFileDownloadUrl(bookmark.file_id)}
+                onClick={handleOpenFile}
+                ref={linkRef}
+                isFile={true}
+            >
+                {icon}
+                <Label>{bookmark.display_name}</Label>
+            </DynamicLink>
+        );
+    }
+
+    return (
+        <Chip>
+            {link}
+            <BookmarkItemDotMenu
+                bookmark={bookmark}
+                open={open}
+            />
+        </Chip>
+    );
+};
+
+const Chip = styled.div`
+    position: relative;
+    border-radius: 12px;
+    overflow: hidden;
+    margin: 1px 0;
+    flex-shrink: 0;
+    min-width: 5rem;
+    max-width: 25rem;
+
+    button {
+        position: absolute;
+        visibility: hidden;
+        right: 6px;
+        top: 3px;
+    }
+
+    &:hover,
+    &:focus-within,
+    &:has([aria-expanded="true"]) {
+        button {
+            visibility: visible;
+        }
+    }
+
+    &:hover,
+    &:focus-within {
+        a {
+            text-decoration: none;
+        }
+    }
+
+    &:hover,
+    &:focus-within,
+    &:has([aria-expanded="true"]) {
+        a {
+            background: rgba(var(--center-channel-color-rgb), 0.08);
+            color: rgba(var(--center-channel-color-rgb), 1);
+        }
+    }
+
+    &:active:not(:has(button:active)),
+    &--active,
+    &--active:hover {
+        a {
+            background: rgba(var(--button-bg-rgb), 0.08);
+            color: rgb(var(--button-bg-rgb)) !important;
+
+            .icon__text {
+                color: rgb(var(--button-bg));
+            }
+
+            .icon {
+                color: rgb(var(--button-bg));
+            }
+        }
+
+    }
+`;
+
+const Label = styled.span`
+    white-space: nowrap;
+    padding: 4px 0;
+    text-overflow: ellipsis;
+    overflow: hidden;
+`;
+
+const TARGET_BLANK_URL_PREFIX = '!';
+
+type DynamicLinkProps = {href: string; children: React.ReactNode; isFile: boolean; onClick?: HTMLAttributes<HTMLAnchorElement>['onClick']};
+const DynamicLink = forwardRef<HTMLAnchorElement, DynamicLinkProps>(({href, children, isFile, onClick}, ref) => {
+    const siteURL = getSiteURL();
+    const openInNewTab = shouldOpenInNewTab(href, siteURL);
+
+    const prefixed = href[0] === TARGET_BLANK_URL_PREFIX;
+
+    if (prefixed || openInNewTab) {
+        return (
+            <StyledExternalLink
+                href={prefixed ? href.substring(1) : href}
+                rel='noopener noreferrer'
+                target='_blank'
+                location='channel_bookmarks.item'
+                ref={ref}
+            >
+                {children}
+            </StyledExternalLink>
+        );
+    }
+
+    if (href.startsWith(siteURL) && !isFile) {
+        return (
+            <StyledLink
+                to={href.slice(siteURL.length)}
+                ref={ref}
+                onClick={onClick}
+            >
+                {children}
+            </StyledLink>
+        );
+    }
+
+    return (
+        <StyledAnchor
+            href={href}
+            ref={ref}
+            onClick={onClick}
+        >
+            {children}
+        </StyledAnchor>
+    );
+});
+
+const linkStyles = css`
+    display: flex;
+    padding: 0 12px 0 6px;
+    gap: 5px;
+
+    color: rgba(var(--center-channel-color-rgb), 1);
+    font-family: Open Sans;
+    font-size: 12px;
+    font-style: normal;
+    font-weight: 600;
+    line-height: 16px;
+`;
+
+const StyledAnchor = styled.a`
+    &&&& {
+        ${linkStyles}
+    }
+`;
+
+const StyledLink = styled(Link)`
+    &&&& {
+        ${linkStyles}
+    }
+`;
+
+const StyledExternalLink = styled(ExternalLink)`
+    &&&& {
+        ${linkStyles}
+    }
+`;
+
+export default BookmarkItem;

webapp/channels/src/components/channel_bookmarks/channel_bookmarks.scss

@@ -0,0 +1,69 @@
+
+.channelBookmarksMenuButton {
+    position: relative;
+    display: flex;
+    padding: 4px;
+    border: none;
+    border-radius: 4px;
+    background: transparent;
+    color: rgba(var(--center-channel-color-rgb), 0.56);
+    font-family: Open Sans;
+    font-size: 12px;
+    font-weight: 600;
+    gap: 5px;
+
+    &.withLabel {
+        padding: 4px 12px 4px 6px;
+        border-radius: 12px;
+    }
+
+    &[disabled] {
+        background: rgba(var(--center-channel-color-rgb), 0.04);
+        color: rgba(var(--center-channel-color-rgb), 0.56);
+    }
+
+    &:hover:enabled {
+        background: rgba(var(--center-channel-color-rgb), 0.08);
+        color: rgba(var(--center-channel-color-rgb), 0.72);
+    }
+
+    &:active:enabled,
+    &[aria-expanded="true"] {
+        background: rgba(var(--button-bg-rgb), 0.08);
+        color: rgb(var(--button-bg-rgb));
+    }
+}
+
+.channelBookmarksDotMenuButton {
+    display: flex;
+    width: 18px;
+    height: 18px;
+    align-items: center;
+    padding: 0;
+    border: none;
+    border-radius: 4px;
+    background: rgba(var(--center-channel-color-rgb), 8%);
+    background: color-mix(in sRGB, var(--center-channel-bg), var(--center-channel-color) 8%);
+    color: rgba(var(--center-channel-color-rgb), 0.56);
+    font-family: Open Sans;
+    font-size: 12px;
+    font-weight: 600;
+
+    &:hover {
+        background: rgba(var(--button-bg-rgb), 16%);
+        background: color-mix(in sRGB, var(--center-channel-bg), var(--center-channel-color) 16%);
+        color: rgba(var(--center-channel-color-rgb), 0.72);
+    }
+
+    &:active,
+    &[aria-expanded="true"] {
+        background: rgba(var(--button-bg-rgb), 16%);
+        background: color-mix(in sRGB, var(--center-channel-bg), var(--button-bg) 16%);
+        color: rgb(var(--button-bg-rgb));
+    }
+}
+
+#bookmark-create-file-input,
+#bookmark-create-file-input-in-modal {
+    display: none;
+}

webapp/channels/src/components/channel_bookmarks/channel_bookmarks.tsx

@@ -0,0 +1,63 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import React from 'react';
+import styled from 'styled-components';
+
+import BookmarkItem from './bookmark_item';
+import PlusMenu from './channel_bookmarks_plus_menu';
+import {useChannelBookmarkPermission, useChannelBookmarks, useIsChannelBookmarksEnabled, MAX_BOOKMARKS_PER_CHANNEL, useCanUploadFiles} from './utils';
+
+import './channel_bookmarks.scss';
+
+type Props = {
+    channelId: string;
+};
+
+const ChannelBookmarks = ({
+    channelId,
+}: Props) => {
+    const show = useIsChannelBookmarksEnabled();
+    const {order, bookmarks} = useChannelBookmarks(channelId);
+    const canUploadFiles = useCanUploadFiles();
+    const canAdd = useChannelBookmarkPermission(channelId, 'add');
+    const hasBookmarks = Boolean(order?.length);
+
+    if (!show || (!hasBookmarks && !canAdd)) {
+        return null;
+    }
+
+    return (
+        <Container data-testid='channel-bookmarks-container'>
+            {order.map((id) => {
+                return (
+                    <BookmarkItem
+                        key={id}
+                        bookmark={bookmarks[id]}
+                    />
+                );
+            })}
+            {canAdd && (
+                <PlusMenu
+                    channelId={channelId}
+                    hasBookmarks={hasBookmarks}
+                    limitReached={order.length >= MAX_BOOKMARKS_PER_CHANNEL}
+                    canUploadFiles={canUploadFiles}
+                />
+            )}
+        </Container>
+    );
+};
+
+export default ChannelBookmarks;
+
+const Container = styled.div`
+    display: flex;
+    padding: 8px 6px;
+    padding-right: 0;
+    align-items: center;
+    border-bottom: 1px solid rgba(var(--center-channel-color-rgb), 0.12);
+    overflow-x: auto;
+    overflow-y: hidden;
+    overflow-y: clip;
+`;

webapp/channels/src/components/channel_bookmarks/channel_bookmarks_create_modal.tsx

@@ -0,0 +1,581 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import type {ChangeEvent, ClipboardEventHandler, FocusEventHandler, MouseEvent} from 'react';
+import React, {useCallback, useEffect, useRef, useState} from 'react';
+import {FormattedMessage, defineMessages, useIntl} from 'react-intl';
+import {useDispatch, useSelector} from 'react-redux';
+import styled from 'styled-components';
+
+import {PencilOutlineIcon} from '@mattermost/compass-icons/components';
+import {GenericModal} from '@mattermost/components';
+import type {ChannelBookmark, ChannelBookmarkCreate, ChannelBookmarkPatch} from '@mattermost/types/channel_bookmarks';
+import type {FileInfo} from '@mattermost/types/files';
+
+import {debounce} from 'mattermost-redux/actions/helpers';
+import {getFile} from 'mattermost-redux/selectors/entities/files';
+import {getConfig} from 'mattermost-redux/selectors/entities/general';
+import type {ActionResult} from 'mattermost-redux/types/actions';
+
+import type {UploadFile} from 'actions/file_actions';
+import {uploadFile} from 'actions/file_actions';
+
+import FileAttachment from 'components/file_attachment';
+import type {FilePreviewInfo} from 'components/file_preview/file_preview';
+import FileProgressPreview from 'components/file_preview/file_progress_preview';
+import Input from 'components/widgets/inputs/input/input';
+
+import Constants from 'utils/constants';
+import {isKeyPressed} from 'utils/keyboard';
+import {isValidUrl, parseLink} from 'utils/url';
+import {generateId} from 'utils/utils';
+
+import type {GlobalState} from 'types/store';
+
+import './bookmark_create_modal.scss';
+
+import CreateModalNameInput from './create_modal_name_input';
+import {useCanUploadFiles} from './utils';
+
+type Props = {
+    channelId: string;
+    bookmarkType?: ChannelBookmark['type'];
+    file?: File;
+    onExited: () => void;
+    onHide: () => void;
+} & ({
+    bookmark: ChannelBookmark;
+    onConfirm: (data: ChannelBookmarkPatch) => Promise<ActionResult<boolean, any>> | ActionResult<boolean, any>;
+} | {
+    bookmark?: never;
+    onConfirm: (data: ChannelBookmarkCreate) => Promise<ActionResult<boolean, any>> | ActionResult<boolean, any>;
+});
+
+function validHttpUrl(input: string) {
+    const val = parseLink(input);
+
+    if (!val || !isValidUrl(val)) {
+        return null;
+    }
+
+    let url;
+    try {
+        url = new URL(val);
+    } catch {
+        return null;
+    }
+
+    return url;
+}
+
+function ChannelBookmarkCreateModal({
+    bookmark,
+    bookmarkType,
+    file: promptedFile,
+    channelId,
+    onExited,
+    onConfirm,
+    onHide,
+}: Props) {
+    const {formatMessage} = useIntl();
+    const dispatch = useDispatch();
+
+    // common
+    const type = bookmark?.type ?? bookmarkType ?? 'link';
+    const [showEmojiPicker, setShowEmojiPicker] = useState(false);
+    const [emoji, setEmoji] = useState(bookmark?.emoji ?? '');
+    const [displayName, setDisplayName] = useState<string | undefined>(bookmark?.display_name);
+    const [parsedDisplayName, setParsedDisplayName] = useState<string | undefined>();
+    const [saving, setSaving] = useState(false);
+    const [saveError, setSaveError] = useState('');
+
+    const handleKeyDown = useCallback((event: KeyboardEvent) => {
+        if (isKeyPressed(event, Constants.KeyCodes.ESCAPE) && !showEmojiPicker) {
+            onHide();
+        }
+    }, [showEmojiPicker, onHide]);
+
+    useEffect(() => {
+        document.addEventListener('keydown', handleKeyDown);
+
+        return () => {
+            document.removeEventListener('keydown', handleKeyDown);
+        };
+    }, [handleKeyDown]);
+
+    // type === 'link'
+    const [linkInputValue, setLinkInputValue] = useState(bookmark?.link_url ?? '');
+    const [link, setLinkImmediately] = useState(linkInputValue);
+    const [linkError, setLinkError] = useState('');
+    const [icon, setIcon] = useState(bookmark?.image_url);
+
+    const handleLinkChange = useCallback(({target: {value}}: ChangeEvent<HTMLInputElement>) => {
+        setLinkInputValue(value);
+        setLink(value);
+    }, []);
+
+    const setLink = debounce((val: string) => {
+        setLinkImmediately(val);
+    }, 250);
+
+    const handleLinkBlur: FocusEventHandler<HTMLInputElement> = useCallback(({target: {value}}) => {
+        setLinkImmediately(value);
+    }, []);
+
+    const handleLinkPasted: ClipboardEventHandler<HTMLInputElement> = useCallback(({clipboardData}) => {
+        setLinkImmediately(clipboardData.getData('text/plain'));
+    }, []);
+
+    const resetParsed = () => {
+        setParsedDisplayName(link || '');
+        setIcon('');
+    };
+
+    useEffect(() => {
+        if (link === bookmark?.link_url || !link) {
+            return;
+        }
+
+        const url = validHttpUrl(link);
+
+        (async () => {
+            resetParsed();
+
+            if (!url) {
+                setLinkError('Please enter a valid link. Could not parse: ' + link);
+                return;
+            }
+            setLinkError('');
+            setParsedDisplayName(link);
+        })();
+    }, [link, bookmark?.link_url, channelId]);
+
+    // type === 'file'
+    const canUploadFiles = useCanUploadFiles();
+    const [pendingFile, setPendingFile] = useState<FilePreviewInfo | null>();
+    const [fileError, setFileError] = useState('');
+    const [fileId, setFileId] = useState(bookmark?.file_id);
+    const uploadRequestRef = useRef<XMLHttpRequest>();
+    const fileInfo: FileInfo | undefined = useSelector((state: GlobalState) => (fileId && getFile(state, fileId)) || undefined);
+
+    const maxFileSize = useSelector((state: GlobalState) => {
+        const config = getConfig(state);
+        return parseInt(config.MaxFileSize || '', 10);
+    });
+    const maxFileSizeMB = maxFileSize / 1048576;
+
+    const handleEditFileClick = (e: MouseEvent<HTMLDivElement>) => {
+        const innerClick = document.querySelector(`
+            .channel-bookmarks-create-modal .post-image__download a,
+            .channel-bookmarks-create-modal a.file-preview__remove
+        `);
+        if (
+            innerClick === e.target ||
+            innerClick?.contains(e.target as HTMLElement)
+        ) {
+            return;
+        }
+
+        fileInputRef.current?.click();
+    };
+
+    const handleFileChanged = useCallback((e: ChangeEvent<HTMLInputElement>) => {
+        const file = e.target.files?.[0];
+        if (!file) {
+            return;
+        }
+
+        doUploadFile(file);
+    }, []);
+
+    const handleFileRemove = () => {
+        setPendingFile(null);
+        setFileId(bookmark?.file_id);
+        setParsedDisplayName(undefined);
+        uploadRequestRef.current?.abort();
+    };
+
+    const fileInputRef = useRef<HTMLInputElement>(null);
+    const fileInput = (
+        <input
+            type='file'
+            id='bookmark-create-file-input-in-modal'
+            className='bookmark-create-file-input'
+            ref={fileInputRef}
+            onChange={handleFileChanged}
+        />
+    );
+
+    const onProgress: UploadFile['onProgress'] = (preview) => {
+        setPendingFile(preview);
+    };
+    const onSuccess: UploadFile['onSuccess'] = ({file_infos: fileInfos}) => {
+        setPendingFile(null);
+        const newFile: FileInfo = fileInfos?.[0];
+        if (newFile) {
+            setFileId(newFile.id);
+        }
+        setFileError('');
+    };
+    const onError: UploadFile['onError'] = () => {
+        setPendingFile(null);
+        setFileError(formatMessage({id: 'file_upload.generic_error_file', defaultMessage: 'There was a problem uploading your file.'}));
+    };
+
+    const displayNameValue = displayName || parsedDisplayName || (type === 'file' ? fileInfo?.name : bookmark?.link_url) || '';
+
+    const doUploadFile = (file: File) => {
+        setPendingFile(null);
+        setFileId('');
+
+        if (file.size > maxFileSize) {
+            setFileError(formatMessage({
+                id: 'file_upload.fileAbove',
+                defaultMessage: 'File above {max}MB could not be uploaded: {filename}',
+            }, {max: maxFileSizeMB, filename: file.name}));
+
+            return;
+        }
+
+        if (file.size === 0) {
+            setFileError(formatMessage({
+                id: 'file_upload.zeroBytesFile',
+                defaultMessage: 'You are uploading an empty file: {filename}',
+            }, {filename: file.name}));
+
+            return;
+        }
+
+        setFileError('');
+        if (displayNameValue === fileInfo?.name) {
+            setDisplayName(file.name);
+        }
+        setParsedDisplayName(file.name);
+
+        const clientId = generateId();
+
+        uploadRequestRef.current = dispatch(uploadFile({
+            file,
+            name: file.name,
+            type: file.type,
+            rootId: '',
+            channelId,
+            clientId,
+            onProgress,
+            onSuccess,
+            onError,
+        }, true)) as unknown as XMLHttpRequest;
+    };
+
+    useEffect(() => {
+        if (promptedFile) {
+            doUploadFile(promptedFile);
+        }
+    }, [promptedFile]);
+
+    const handleOnExited = useCallback(() => {
+        uploadRequestRef.current?.abort();
+        onExited?.();
+    }, [onExited]);
+
+    // controls logic
+    const hasChanges = (() => {
+        if (displayNameValue !== bookmark?.display_name) {
+            return true;
+        }
+
+        if ((emoji || bookmark?.emoji) && emoji !== bookmark?.emoji) {
+            return true;
+        }
+
+        if (type === 'file') {
+            if (fileId && fileId !== bookmark?.file_id) {
+                return true;
+            }
+        }
+
+        if (type === 'link') {
+            return Boolean(link && link !== bookmark?.link_url);
+        }
+
+        return false;
+    })();
+    const isValid = (() => {
+        if (type === 'link') {
+            if (!link || linkError) {
+                return false;
+            }
+        }
+
+        if (type === 'file') {
+            if (!fileInfo || !displayNameValue || fileError) {
+                return false;
+            }
+        }
+
+        return true;
+    })();
+    const showControls = type === 'file' || (isValid || bookmark);
+
+    const cancel = useCallback(() => {
+        if (type === 'file') {
+            uploadRequestRef.current?.abort();
+        }
+    }, [type]);
+
+    const confirm = useCallback(async () => {
+        setSaving(true);
+        if (type === 'link') {
+            const url = validHttpUrl(link);
+
+            if (!url) {
+                setSaveError(formatMessage(msg.linkInvalid));
+                return;
+            }
+
+            let validLink = url.toString();
+
+            if (validLink.endsWith('/')) {
+                validLink = validLink.slice(0, -1);
+            }
+
+            const {data: success} = await onConfirm({
+                image_url: icon,
+                link_url: validLink,
+                emoji,
+                display_name: displayNameValue,
+                type: 'link',
+            });
+
+            setSaving(false);
+
+            if (success) {
+                setSaveError('');
+                onHide();
+            } else {
+                setSaveError(formatMessage(msg.saveError));
+            }
+        } else if (fileInfo) {
+            const {data: success} = await onConfirm({
+                file_id: fileInfo.id,
+                display_name: displayNameValue,
+                type: 'file',
+                emoji,
+            });
+
+            if (success) {
+                setSaveError('');
+                onHide();
+            } else {
+                setSaveError(formatMessage(msg.saveError));
+            }
+        }
+    }, [type, link, onConfirm, onHide, fileInfo, displayNameValue, emoji, icon]);
+
+    const confirmDisabled = saving || !isValid || !hasChanges;
+
+    return (
+        <GenericModal
+            enforceFocus={!showEmojiPicker}
+            keyboardEscape={false}
+            className='channel-bookmarks-create-modal'
+            modalHeaderText={formatMessage(bookmark ? msg.editHeading : msg.heading)}
+            confirmButtonText={formatMessage(bookmark ? msg.saveText : msg.addBookmarkText)}
+            handleCancel={(showControls && cancel) || undefined}
+            handleConfirm={(showControls && confirm) || undefined}
+            handleEnterKeyPress={(!confirmDisabled && confirm) || undefined}
+            onExited={handleOnExited}
+            compassDesign={true}
+            isConfirmDisabled={confirmDisabled}
+            autoCloseOnConfirmButton={false}
+            errorText={saveError}
+        >
+            <>
+                {type === 'link' ? (
+                    <Input
+                        type='text'
+                        name='bookmark-link'
+                        containerClassName='linkInput'
+                        placeholder={formatMessage(msg.linkPlaceholder)}
+                        onChange={handleLinkChange}
+                        onBlur={handleLinkBlur}
+                        onPaste={handleLinkPasted}
+                        value={linkInputValue}
+                        data-testid='linkInput'
+                        autoFocus={true}
+                        customMessage={linkError ? {type: 'error', value: linkError} : {value: formatMessage(msg.linkInfoMessage)}}
+                    />
+                ) : (
+                    <>
+                        <FieldLabel>
+                            <FormattedMessage
+                                id='channel_bookmarks.create.file_input.label'
+                                defaultMessage='Attachment'
+                            />
+                        </FieldLabel>
+                        <FileInputContainer
+                            tabIndex={0}
+                            role='button'
+                            disabled={!canUploadFiles}
+                            onClick={(canUploadFiles && handleEditFileClick) || undefined}
+                        >
+                            {!pendingFile && fileInfo && (
+                                <FileItemContainer>
+                                    <FileAttachment
+                                        key={fileInfo.id}
+                                        fileInfo={fileInfo}
+                                        index={0}
+                                    />
+                                </FileItemContainer>
+                            )}
+                            {pendingFile && (
+                                <FileProgressPreview
+                                    key={pendingFile.clientId}
+                                    clientId={pendingFile.clientId}
+                                    fileInfo={pendingFile}
+                                    handleRemove={handleFileRemove}
+                                />
+                            )}
+                            {!fileInfo && !pendingFile && (
+                                <div className='file-preview__container empty'/>
+                            )}
+                            <VisualButton>
+                                <PencilOutlineIcon size={24}/>
+                                {formatMessage(msg.fileInputEdit)}
+                            </VisualButton>
+                            {fileInput}
+                        </FileInputContainer>
+                        {fileError && (
+                            <div className='Input___customMessage Input___error'>
+                                <i className='icon error icon-alert-circle-outline'/>
+                                <span>{fileError}</span>
+                            </div>
+                        )}
+                    </>
+
+                )}
+
+                {showControls && (
+                    <TitleWrapper>
+                        <FieldLabel>
+                            <FormattedMessage
+                                id='channel_bookmarks.create.title_input.label'
+                                defaultMessage='Title'
+                            />
+                        </FieldLabel>
+                        <CreateModalNameInput
+                            type={type}
+                            imageUrl={icon}
+                            fileInfo={pendingFile || fileInfo}
+                            emoji={emoji}
+                            setEmoji={setEmoji}
+                            displayName={displayName}
+                            placeholder={displayNameValue}
+                            setDisplayName={setDisplayName}
+                            onAddCustomEmojiClick={onHide}
+                            showEmojiPicker={showEmojiPicker}
+                            setShowEmojiPicker={setShowEmojiPicker}
+                        />
+                    </TitleWrapper>
+                )}
+            </>
+        </GenericModal>
+    );
+}
+
+export default ChannelBookmarkCreateModal;
+
+const TitleWrapper = styled.div`
+    margin-top: 20px;
+`;
+
+const FieldLabel = styled.span`
+    display: inline-block;
+    margin-bottom: 8px;
+    font-family: Open Sans;
+    font-size: 14px;
+    line-height: 16px;
+    font-style: normal;
+    font-weight: 600;
+    line-height: 20px;
+`;
+
+const VisualButton = styled.div`
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    gap: 4px;
+    padding: 10px 24px;
+    color: rgba(var(--center-channel-color-rgb), 0.56);
+    font-size: 11px;
+    font-weight: 600;
+    font-family: Open Sans;
+`;
+
+const FileInputContainer = styled.div`
+    display: block;
+    background: rgba(var(--center-channel-color-rgb), 0.04);
+    padding: 12px;
+    border-radius: 8px;
+    display: flex;
+
+    &:hover:not([disabled]) {
+        background: rgba(var(--center-channel-color-rgb), 0.08);
+        color: rgba(var(--center-channel-color-rgb), 0.72);
+        cursor: pointer;
+    }
+
+    &:disabled {
+        cursor: default;
+        ${VisualButton} {
+            opacity: 0.4;
+        }
+    }
+
+    input[type="file"] {
+        opacity: 0;
+        width: 0;
+        height: 0;
+    }
+
+    .file-preview__container,
+    .file-preview {
+        width: auto;
+        height: auto;
+        flex: 1 1 auto;
+        padding: 0;
+
+        &.empty {
+            border: 2px dashed rgba(var(--center-channel-color-rgb), 0.16);
+            border-radius : 4px;
+        }
+
+        .post-image__column {
+            width: 100%;
+            margin: 0;
+        }
+    }
+`;
+
+const FileItemContainer = styled.div`
+    display: flex;
+    flex: 1 1 auto;
+
+    > div {
+        width: 100%;
+        margin: 0;
+    }
+`;
+
+const msg = defineMessages({
+    heading: {id: 'channel_bookmarks.create.title', defaultMessage: 'Add a bookmark'},
+    editHeading: {id: 'channel_bookmarks.create.edit.title', defaultMessage: 'Edit bookmark'},
+    linkPlaceholder: {id: 'channel_bookmarks.create.link_placeholder', defaultMessage: 'Link'},
+    linkInfoMessage: {id: 'channel_bookmarks.create.link_info', defaultMessage: 'Add a link to any post, file, or any external link'},
+    addBookmarkText: {id: 'channel_bookmarks.create.confirm_add.button', defaultMessage: 'Add bookmark'},
+    saveText: {id: 'channel_bookmarks.create.confirm_save.button', defaultMessage: 'Save bookmark'},
+    fileInputEdit: {id: 'channel_bookmarks.create.file_input.edit', defaultMessage: 'Edit'},
+    linkInvalid: {id: 'channel_bookmarks.create.error.invalid_url', defaultMessage: 'Please enter a valid link'},
+    saveError: {id: 'channel_bookmarks.create.error.generic_save', defaultMessage: 'There was an error trying to save the bookmark.'},
+});

webapp/channels/src/components/channel_bookmarks/channel_bookmarks_plus_menu.tsx

@@ -0,0 +1,156 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import classNames from 'classnames';
+import type {ChangeEvent} from 'react';
+import React, {useCallback, useRef} from 'react';
+import {useIntl} from 'react-intl';
+import {useDispatch} from 'react-redux';
+import styled, {css} from 'styled-components';
+
+import {
+    LinkVariantIcon,
+    PaperclipIcon,
+    PlusIcon,
+} from '@mattermost/compass-icons/components';
+import type {ChannelBookmarkCreate} from '@mattermost/types/channel_bookmarks';
+
+import type {ActionResult} from 'mattermost-redux/types/actions';
+
+import {createBookmark} from 'actions/channel_bookmarks';
+import {openModal} from 'actions/views/modals';
+
+import * as Menu from 'components/menu';
+
+import {ModalIdentifiers} from 'utils/constants';
+import {clearFileInput} from 'utils/utils';
+
+import ChannelBookmarkCreateModal from './channel_bookmarks_create_modal';
+import {MAX_BOOKMARKS_PER_CHANNEL} from './utils';
+
+type PlusMenuProps = {
+    channelId: string;
+    hasBookmarks: boolean;
+    limitReached: boolean;
+    canUploadFiles: boolean;
+};
+const PlusMenu = ({
+    channelId,
+    hasBookmarks,
+    limitReached,
+    canUploadFiles,
+}: PlusMenuProps) => {
+    const {formatMessage} = useIntl();
+    const dispatch = useDispatch();
+    const showLabel = !hasBookmarks;
+
+    const handleCreate = useCallback((file?: File) => {
+        dispatch(openModal({
+            modalId: ModalIdentifiers.CHANNEL_BOOKMARK_CREATE,
+            dialogType: ChannelBookmarkCreateModal,
+            dialogProps: {
+                channelId,
+                bookmarkType: file ? 'file' : 'link',
+                file,
+                onConfirm: async (data: ChannelBookmarkCreate) => dispatch(createBookmark(channelId, data)) as ActionResult<boolean>,
+            },
+        }));
+    }, [channelId, dispatch]);
+
+    const handleFileChanged = useCallback((e: ChangeEvent<HTMLInputElement>) => {
+        if (e.target.files?.length) {
+            const [file] = e.target.files;
+            handleCreate(file);
+            clearFileInput(e.target);
+        }
+    }, [handleCreate]);
+
+    const fileInputRef = useRef<HTMLInputElement>(null);
+    const fileInput = (
+        <input
+            type='file'
+            id='bookmark-create-file-input'
+            className='bookmark-create-file-input'
+            ref={fileInputRef}
+            onChange={handleFileChanged}
+        />
+    );
+
+    const handleCreateLink = useCallback(() => {
+        handleCreate();
+    }, [handleCreate]);
+
+    const handleCreateFile = useCallback(() => {
+        fileInputRef.current?.click();
+    }, [fileInputRef.current]);
+
+    const addBookmarkLabel = formatMessage({id: 'channel_bookmarks.addBookmark', defaultMessage: 'Add a bookmark'});
+
+    const addBookmarkLimitReached = formatMessage({id: 'channel_bookmarks.addBookmarkLimitReached', defaultMessage: 'Cannot add more than {limit} bookmarks'}, {limit: MAX_BOOKMARKS_PER_CHANNEL});
+    let addBookmarkTooltipText;
+
+    if (limitReached) {
+        addBookmarkTooltipText = addBookmarkLimitReached;
+    } else if (hasBookmarks) {
+        addBookmarkTooltipText = addBookmarkLabel;
+    }
+    const addLinkLabel = formatMessage({id: 'channel_bookmarks.addLink', defaultMessage: 'Add a link'});
+    const attachFileLabel = formatMessage({id: 'channel_bookmarks.attachFile', defaultMessage: 'Attach a file'});
+
+    return (
+        <PlusButtonContainer withLabel={showLabel}>
+            <Menu.Container
+                anchorOrigin={{vertical: 'bottom', horizontal: 'left'}}
+                transformOrigin={{vertical: 'top', horizontal: 'left'}}
+                menuButton={{
+                    id: 'channelBookmarksPlusMenuButton',
+                    class: classNames('channelBookmarksMenuButton', {withLabel: showLabel, disabled: limitReached}),
+                    children: (
+                        <>
+                            <PlusIcon size={showLabel ? 16 : 18}/>
+                            {showLabel && <span>{addBookmarkLabel}</span>}
+                        </>
+                    ),
+                    'aria-label': addBookmarkLabel,
+                    disabled: limitReached,
+                }}
+                menu={{
+                    id: 'channelBookmarksPlusMenuDropdown',
+                }}
+                menuButtonTooltip={addBookmarkTooltipText ? {
+                    id: 'channelBookmarksPlusMenuButtonTooltip',
+                    text: addBookmarkTooltipText,
+                } : undefined}
+            >
+                <Menu.Item
+                    key='channelBookmarksAddLink'
+                    id='channelBookmarksAddLink'
+                    onClick={handleCreateLink}
+                    leadingElement={<LinkVariantIcon size={18}/>}
+                    labels={<span>{addLinkLabel}</span>}
+                    aria-label={addLinkLabel}
+                />
+                {canUploadFiles && (
+                    <Menu.Item
+                        key='channelBookmarksAttachFile'
+                        id='channelBookmarksAttachFile'
+                        onClick={handleCreateFile}
+                        leadingElement={<PaperclipIcon size={18}/>}
+                        labels={<span>{attachFileLabel}</span>}
+                        aria-label={attachFileLabel}
+                    />
+                )}
+            </Menu.Container>
+            {fileInput}
+        </PlusButtonContainer>
+    );
+};
+
+export default PlusMenu;
+
+const PlusButtonContainer = styled.div<{withLabel: boolean}>`
+    position: sticky;
+    right: 0;
+    ${({withLabel}) => !withLabel && css`padding: 0 1rem;`}
+    background: linear-gradient(to right, rgba(var(--center-channel-bg-rgb), .16), rgba(var(--center-channel-bg-rgb), 1) 25%);
+`;

webapp/channels/src/components/channel_bookmarks/create_modal_name_input.tsx

@@ -0,0 +1,203 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import type {ComponentProps} from 'react';
+import React, {useCallback, useRef} from 'react';
+import {FormattedMessage, useIntl} from 'react-intl';
+import styled from 'styled-components';
+
+import {ChevronDownIcon} from '@mattermost/compass-icons/components';
+import type {ChannelBookmark} from '@mattermost/types/channel_bookmarks';
+import type {Emoji} from '@mattermost/types/emojis';
+import type {FileInfo} from '@mattermost/types/files';
+
+import EmojiPickerOverlay from 'components/emoji_picker/emoji_picker_overlay';
+import Input from 'components/widgets/inputs/input/input';
+
+import Constants, {A11yCustomEventTypes, type A11yFocusEventDetail} from 'utils/constants';
+import {isKeyPressed} from 'utils/keyboard';
+
+import BookmarkIcon from './bookmark_icon';
+
+type Props = {
+    type: ChannelBookmark['type'];
+    fileInfo: FileInfo | undefined;
+    imageUrl: string | undefined;
+    emoji: string | undefined;
+    setEmoji: React.Dispatch<React.SetStateAction<string>>;
+    placeholder: string | undefined;
+    displayName: string | undefined;
+    setDisplayName: React.Dispatch<React.SetStateAction<string | undefined>>;
+    showEmojiPicker: boolean;
+    setShowEmojiPicker: React.Dispatch<React.SetStateAction<boolean>>;
+    onAddCustomEmojiClick?: () => void;
+}
+const CreateModalNameInput = ({
+    type,
+    imageUrl,
+    fileInfo,
+    emoji,
+    setEmoji,
+    placeholder,
+    displayName,
+    setDisplayName,
+    showEmojiPicker,
+    setShowEmojiPicker,
+    onAddCustomEmojiClick,
+}: Props) => {
+    const {formatMessage} = useIntl();
+
+    const targetRef = useRef<HTMLButtonElement>(null);
+    const getTargetRef = () => targetRef.current;
+
+    const icon = (
+        <BookmarkIcon
+            type={type}
+            size={24}
+            emoji={emoji}
+            fileInfo={fileInfo}
+            imageUrl={imageUrl}
+        />
+    );
+
+    const refocusEmojiButton = () => {
+        if (!targetRef.current) {
+            return;
+        }
+
+        document.dispatchEvent(new CustomEvent<A11yFocusEventDetail>(
+            A11yCustomEventTypes.FOCUS, {
+                detail: {
+                    target: targetRef.current,
+                    keyboardOnly: true,
+                },
+            },
+        ));
+    };
+
+    const toggleEmojiPicker = () => setShowEmojiPicker((prev) => !prev);
+
+    const handleEmojiClick = (selectedEmoji: Emoji) => {
+        setShowEmojiPicker(false);
+        const emojiName = ('short_name' in selectedEmoji) ? selectedEmoji.short_name : selectedEmoji.name;
+        setEmoji(`:${emojiName}:`);
+        refocusEmojiButton();
+    };
+
+    const handleEmojiClear = () => {
+        setEmoji('');
+    };
+
+    const handleEmojiClose = () => {
+        setShowEmojiPicker(false);
+        refocusEmojiButton();
+    };
+
+    const handleInputChange: ComponentProps<typeof Input>['onChange'] = useCallback((e) => {
+        setDisplayName(e.currentTarget.value);
+    }, []);
+
+    const handleEmojiKeyDown = (e: React.KeyboardEvent<HTMLButtonElement>) => {
+        if (isKeyPressed(e, Constants.KeyCodes.ENTER)) {
+            e.stopPropagation();
+        }
+    };
+
+    const handleEmojiResetKeyDown = (e: React.KeyboardEvent<HTMLAnchorElement>) => {
+        if (isKeyPressed(e, Constants.KeyCodes.ENTER) || isKeyPressed(e, Constants.KeyCodes.SPACE)) {
+            e.stopPropagation();
+            handleEmojiClear();
+        }
+    };
+
+    return (
+        <>
+            <NameWrapper>
+                {showEmojiPicker && (
+                    <EmojiPickerOverlay
+                        target={getTargetRef}
+                        show={showEmojiPicker}
+                        onHide={handleEmojiClose}
+                        onEmojiClick={handleEmojiClick}
+                        placement='right'
+                        onAddCustomEmojiClick={onAddCustomEmojiClick}
+                    />
+
+                )}
+                <button
+                    ref={targetRef}
+                    type='button'
+                    onClick={toggleEmojiPicker}
+                    onKeyDown={handleEmojiKeyDown}
+                    aria-label={formatMessage({id: 'emoji_picker.emojiPicker.button.ariaLabel', defaultMessage: 'select an emoji'})}
+                    aria-expanded={showEmojiPicker ? 'true' : 'false'}
+
+                    className='channelBookmarksMenuButton emoji-picker__container BookmarkCreateModal__emoji-button'
+                >
+                    {icon}
+                    <ChevronDownIcon size={'12px'}/>
+                </button>
+                <Input
+                    type='text'
+                    name='bookmark-display-name'
+                    onChange={handleInputChange}
+                    value={displayName ?? placeholder ?? ''}
+                    placeholder={placeholder}
+                    data-testid='titleInput'
+                    useLegend={false}
+                />
+                <Clear
+                    visible={Boolean(emoji)}
+                    tabIndex={0}
+                    onClick={handleEmojiClear}
+                    onKeyDown={handleEmojiResetKeyDown}
+                >
+                    <FormattedMessage
+                        id='channel_bookmarks.create.title_input.clear_emoji'
+                        defaultMessage='Remove emoji'
+                    />
+                </Clear>
+            </NameWrapper>
+        </>
+    );
+};
+
+const Clear = styled.a<{visible: boolean}>`
+    font-size: 12px;
+    visibility: ${({visible}) => (visible ? 'visible' : 'hidden')};
+`;
+
+const NameWrapper = styled.div`
+    position: relative;
+
+    > button {
+        position: absolute;
+        left: 1px;
+        top: 1px;
+        z-index: 5;
+        width: 57px;
+        height: 44px;
+        border-radius: 4px 0 0 4px;
+        border-right: 1px solid rgba(var(--center-channel-color-rgb), 0.16);
+
+        align-items: center;
+        justify-content: center;
+        gap: 0;
+        padding-left: 6px;
+        padding-right: 2px;
+
+        svg {
+            flex-shrink: 0;
+        }
+    }
+
+    .Input_container {
+
+    }
+
+    .Input_wrapper {
+        padding-left: 7rem;
+    }
+`;
+
+export default CreateModalNameInput;

webapp/channels/src/components/channel_bookmarks/index.ts

@@ -0,0 +1,4 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+export {default} from './channel_bookmarks';

webapp/channels/src/components/channel_bookmarks/utils.ts

@@ -0,0 +1,135 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {useEffect, useMemo} from 'react';
+import {useDispatch, useSelector} from 'react-redux';
+
+import type {Channel} from '@mattermost/types/channels';
+import type {GlobalState} from '@mattermost/types/store';
+
+import {Permissions} from 'mattermost-redux/constants';
+import {getChannelBookmarks} from 'mattermost-redux/selectors/entities/channel_bookmarks';
+import {getChannel, getMyChannelMember} from 'mattermost-redux/selectors/entities/channels';
+import {getConfig, getFeatureFlagValue, getLicense} from 'mattermost-redux/selectors/entities/general';
+import {haveIChannelPermission} from 'mattermost-redux/selectors/entities/roles';
+
+import {fetchChannelBookmarks} from 'actions/channel_bookmarks';
+import {loadCustomEmojisIfNeeded} from 'actions/emoji_actions';
+
+import Constants from 'utils/constants';
+import {trimmedEmojiName} from 'utils/emoji_utils';
+import {canUploadFiles, isPublicLinksEnabled} from 'utils/file_utils';
+
+export const MAX_BOOKMARKS_PER_CHANNEL = 50;
+
+export const useIsChannelBookmarksEnabled = () => {
+    return useSelector(getIsChannelBookmarksEnabled);
+};
+
+const {OPEN_CHANNEL, PRIVATE_CHANNEL, GM_CHANNEL, DM_CHANNEL} = Constants as {OPEN_CHANNEL: 'O'; PRIVATE_CHANNEL: 'P'; GM_CHANNEL: 'G'; DM_CHANNEL: 'D'};
+
+type TAction = 'add' | 'edit' | 'delete' | 'order';
+type TActionKey = `${TAction}${typeof OPEN_CHANNEL | typeof PRIVATE_CHANNEL}`;
+
+const key = (a: TAction, c: typeof OPEN_CHANNEL | typeof PRIVATE_CHANNEL): TActionKey => {
+    return `${a}${c}`;
+};
+
+const BOOKMARK_PERMISSION = {
+
+    // open channel
+    [key('add', OPEN_CHANNEL)]: Permissions.ADD_BOOKMARK_PUBLIC_CHANNEL,
+    [key('edit', OPEN_CHANNEL)]: Permissions.EDIT_BOOKMARK_PUBLIC_CHANNEL,
+    [key('delete', OPEN_CHANNEL)]: Permissions.DELETE_BOOKMARK_PUBLIC_CHANNEL,
+    [key('order', OPEN_CHANNEL)]: Permissions.ORDER_BOOKMARK_PUBLIC_CHANNEL,
+
+    // private channel
+    [key('add', PRIVATE_CHANNEL)]: Permissions.ADD_BOOKMARK_PRIVATE_CHANNEL,
+    [key('edit', PRIVATE_CHANNEL)]: Permissions.EDIT_BOOKMARK_PRIVATE_CHANNEL,
+    [key('delete', PRIVATE_CHANNEL)]: Permissions.DELETE_BOOKMARK_PRIVATE_CHANNEL,
+    [key('order', PRIVATE_CHANNEL)]: Permissions.ORDER_BOOKMARK_PRIVATE_CHANNEL,
+} as const;
+
+export const useChannelBookmarkPermission = (channelId: string, action: TAction) => {
+    return useSelector((state: GlobalState) => getHaveIChannelBookmarkPermission(state, channelId, action));
+};
+
+export const getHaveIChannelBookmarkPermission = (state: GlobalState, channelId: string, action: TAction) => {
+    const channel: Channel | undefined = getChannel(state, channelId);
+
+    if (!channel) {
+        return false;
+    }
+    const {type} = channel;
+
+    if (type === 'threads') {
+        return false;
+    }
+
+    if (type === GM_CHANNEL || type === DM_CHANNEL) {
+        const myMembership = getMyChannelMember(state, channelId);
+        return myMembership?.channel_id === channelId;
+    }
+
+    const permission = BOOKMARK_PERMISSION[key(action, type)];
+
+    return channel && permission && haveIChannelPermission(state, channel.team_id, channelId, permission);
+};
+
+export const useCanUploadFiles = () => {
+    return useSelector((state: GlobalState) => canUploadFiles(getConfig(state)));
+};
+
+export const useCanGetPublicLink = () => {
+    return useSelector((state: GlobalState) => isPublicLinksEnabled(getConfig(state)));
+};
+
+export const useCanGetLinkPreviews = () => {
+    return useSelector((state: GlobalState) => getConfig(state).EnableLinkPreviews === 'true');
+};
+
+export const getIsChannelBookmarksEnabled = (state: GlobalState) => {
+    const isEnabled = getFeatureFlagValue(state, 'ChannelBookmarks') === 'true';
+
+    if (!isEnabled) {
+        return false;
+    }
+
+    const license = getLicense(state);
+
+    return license?.IsLicensed === 'true';
+};
+
+export const useChannelBookmarks = (channelId: string) => {
+    const dispatch = useDispatch();
+    const bookmarks = useSelector((state: GlobalState) => getChannelBookmarks(state, channelId));
+
+    const order = useMemo(() => {
+        return Object.keys(bookmarks).sort((a, b) => bookmarks[a].sort_order - bookmarks[b].sort_order);
+    }, [bookmarks]);
+
+    useEffect(() => {
+        if (channelId) {
+            dispatch(fetchChannelBookmarks(channelId));
+        }
+    }, [channelId]);
+
+    useEffect(() => {
+        const emojis = Object.values(bookmarks).reduce<string[]>((result, {emoji}) => {
+            if (emoji) {
+                result.push(trimmedEmojiName(emoji));
+            }
+
+            return result;
+        }, []);
+
+        if (emojis.length) {
+            dispatch(loadCustomEmojisIfNeeded(emojis));
+        }
+    }, [bookmarks]);
+
+    return {
+        bookmarks,
+        order,
+    };
+};

webapp/channels/src/components/channel_view/__snapshots__/channel_view.test.tsx.snap

@@ -28,6 +28,9 @@ exports[`components/channel_view Should match snapshot if channel is archived 1`
     teamUrl="/team"
     viewArchivedChannels={false}
   />
+  <ChannelBookmarks
+    channelId="channelId"
+  />
   <DeferredRenderWrapper
     channelId="channelId"
   />
@@ -85,6 +88,9 @@ exports[`components/channel_view Should match snapshot if channel is deactivated
     teamUrl="/team"
     viewArchivedChannels={false}
   />
+  <ChannelBookmarks
+    channelId="channelId"
+  />
   <DeferredRenderWrapper
     channelId="channelId"
   />
@@ -141,6 +147,9 @@ exports[`components/channel_view Should match snapshot with base props 1`] = `
     teamUrl="/team"
     viewArchivedChannels={false}
   />
+  <ChannelBookmarks
+    channelId="channelId"
+  />
   <DeferredRenderWrapper
     channelId="channelId"
   />

webapp/channels/src/components/channel_view/channel_view.tsx

@@ -6,6 +6,7 @@ import {FormattedMessage} from 'react-intl';
 import type {RouteComponentProps} from 'react-router-dom';
 
 import AdvancedCreatePost from 'components/advanced_create_post';
+import ChannelBookmarks from 'components/channel_bookmarks';
 import ChannelHeader from 'components/channel_header';
 import deferComponentRender from 'components/deferComponentRender';
 import FileUploadOverlay from 'components/file_upload_overlay';
@@ -173,9 +174,8 @@ export default class ChannelView extends React.PureComponent<Props, State> {
                 className='app__content'
             >
                 <FileUploadOverlay overlayType='center'/>
-                <ChannelHeader
-                    {...this.props}
-                />
+                <ChannelHeader {...this.props}/>
+                <ChannelBookmarks channelId={this.props.channelId}/>
                 <DeferredPostView
                     channelId={this.props.channelId}
                     focusedPostId={this.state.focusedPostId}

webapp/channels/src/components/emoji_picker/components/emoji_picker_custom_emoji_button.tsx

@@ -12,10 +12,10 @@ import AnyTeamPermissionGate from 'components/permissions_gates/any_team_permiss
 interface Props {
     customEmojisEnabled: boolean;
     currentTeamName: string;
-    handleEmojiPickerClose: () => void;
+    onClick: () => void;
 }
 
-function EmojiPickerCustomEmojiButton({customEmojisEnabled, currentTeamName, handleEmojiPickerClose}: Props) {
+function EmojiPickerCustomEmojiButton({customEmojisEnabled, currentTeamName, onClick}: Props) {
     if (!customEmojisEnabled) {
         return null;
     }
@@ -30,7 +30,7 @@ function EmojiPickerCustomEmojiButton({customEmojisEnabled, currentTeamName, han
                 <Link
                     className='btn btn-tertiary'
                     to={`/${currentTeamName}/emoji`}
-                    onClick={handleEmojiPickerClose}
+                    onClick={onClick}
                 >
                     <FormattedMessage
                         id='emoji_picker.custom_emoji'

webapp/channels/src/components/emoji_picker/emoji_picker.tsx

@@ -39,6 +39,7 @@ export interface Props extends PropsFromRedux {
     onEmojiClick: (emoji: Emoji) => void;
     handleFilterChange: (filter: string) => void;
     handleEmojiPickerClose: () => void;
+    onAddCustomEmojiClick?: () => void;
 }
 
 const EmojiPicker = ({
@@ -46,6 +47,7 @@ const EmojiPicker = ({
     onEmojiClick,
     handleFilterChange,
     handleEmojiPickerClose,
+    onAddCustomEmojiClick,
     customEmojisEnabled = false,
     customEmojiPage = 0,
     emojiMap,
@@ -204,6 +206,11 @@ const EmojiPicker = ({
         });
     }, []);
 
+    const onAddCustomEmojiClickInner = useCallback(() => {
+        handleEmojiPickerClose();
+        onAddCustomEmojiClick?.();
+    }, []);
+
     const [cursorCategory, cursorCategoryIndex, cursorEmojiIndex] = getCursorProperties(cursor.rowIndex, cursor.emojiId, categoryOrEmojisRows as EmojiRow[]);
 
     function calculateNewCursorForUpArrow(cursorCategory: string, emojiPositions: EmojiPosition[], currentCursorsPositionIndex: number, categories: Categories, focusOnSearchInput: () => void) {
@@ -429,13 +436,11 @@ const EmojiPicker = ({
                 />
             )}
             <div className='emoji-picker__footer'>
-                {areSearchResultsEmpty ? (<div/>) :
-                    (<EmojiPickerPreview emoji={cursor.emoji}/>)
-                }
+                {areSearchResultsEmpty ? <div/> : <EmojiPickerPreview emoji={cursor.emoji}/>}
                 <EmojiPickerCustomEmojiButton
                     currentTeamName={currentTeamName}
                     customEmojisEnabled={customEmojisEnabled}
-                    handleEmojiPickerClose={handleEmojiPickerClose}
+                    onClick={onAddCustomEmojiClickInner}
                 />
             </div>
         </div>

webapp/channels/src/components/emoji_picker/emoji_picker_overlay/emoji_picker_overlay.tsx

@@ -3,7 +3,7 @@
 
 import memoize from 'memoize-one';
 import React from 'react';
-import type {ReactNode} from 'react';
+import type {ComponentProps, ReactNode} from 'react';
 import {Overlay} from 'react-bootstrap';
 
 import type {Emoji} from '@mattermost/types/emojis';
@@ -20,9 +20,11 @@ export interface Props extends PropsFromRedux {
     target: () => ReactNode;
     onEmojiClick: (emoji: Emoji) => void;
     onGifClick?: (gif: string) => void;
+    onAddCustomEmojiClick?: () => void;
     onHide: () => void;
     onExited?: () => void;
     show: boolean;
+    placement?: ComponentProps<typeof Overlay>['placement'];
     topOffset?: number;
     rightOffset?: number;
     leftOffset?: number;
@@ -89,7 +91,7 @@ export default class EmojiPickerOverlay extends React.PureComponent<Props> {
         return (
             <Overlay
                 show={show}
-                placement={placement}
+                placement={this.props.placement ?? placement}
                 rootClose={!isMobileView}
                 container={this.props.container}
                 onHide={this.props.onHide}
@@ -105,6 +107,7 @@ export default class EmojiPickerOverlay extends React.PureComponent<Props> {
                     rightOffset={calculatedRightOffset}
                     topOffset={this.props.topOffset}
                     leftOffset={this.props.leftOffset}
+                    onAddCustomEmojiClick={this.props.onAddCustomEmojiClick}
                 />
             </Overlay>
         );

webapp/channels/src/components/emoji_picker/emoji_picker_tabs.tsx

@@ -26,6 +26,7 @@ export interface Props {
     onEmojiClose: () => void;
     onEmojiClick: (emoji: Emoji) => void;
     onGifClick?: (gif: string) => void;
+    onAddCustomEmojiClick?: () => void;
     enableGifPicker?: boolean;
 }
 
@@ -176,6 +177,7 @@ export default class EmojiPickerTabs extends PureComponent<Props, State> {
                     onEmojiClick={this.props.onEmojiClick}
                     handleFilterChange={this.handleFilterChange}
                     handleEmojiPickerClose={this.handleEmojiPickerClose}
+                    onAddCustomEmojiClick={this.props.onAddCustomEmojiClick}
                 />
             </div>
         );

webapp/channels/src/components/error_page/__snapshots__/error_link.test.tsx.snap

@@ -1,7 +1,7 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
 exports[`components/error_page/ErrorLink should match snapshot 1`] = `
-<ExternalLink
+<ForwardRef
   href="https://docs.mattermost.com/deployment/sso-gitlab.html"
   location="error_link"
 >
@@ -9,5 +9,5 @@ exports[`components/error_page/ErrorLink should match snapshot 1`] = `
     defaultMessage="GitLab"
     id="error.oauth_missing_code.gitlab.link"
   />
-</ExternalLink>
+</ForwardRef>
 `;

webapp/channels/src/components/external_link/__snapshots__/external_link.test.tsx.snap

@@ -13,7 +13,7 @@ exports[`components/external_link should match snapshot 1`] = `
     }
   }
 >
-  <ExternalLink
+  <ForwardRef
     href="https://mattermost.com"
     location="test"
   >
@@ -26,6 +26,6 @@ exports[`components/external_link should match snapshot 1`] = `
     >
       Click Me
     </a>
-  </ExternalLink>
+  </ForwardRef>
 </Provider>
 `;

webapp/channels/src/components/external_link/index.tsx

@@ -3,7 +3,7 @@
 
 /* eslint-disable @mattermost/use-external-link */
 
-import React from 'react';
+import React, {forwardRef} from 'react';
 import {useSelector} from 'react-redux';
 
 import {getCurrentUserId} from 'mattermost-redux/selectors/entities/common';
@@ -29,7 +29,7 @@ type Props = React.AnchorHTMLAttributes<HTMLAnchorElement> & {
     children: React.ReactNode;
 };
 
-export default function ExternalLink(props: Props) {
+const ExternalLink = forwardRef<HTMLAnchorElement, Props>((props, ref) => {
     const userId = useSelector(getCurrentUserId);
     const config = useSelector(getConfig);
     const license = useSelector(getLicense);
@@ -70,6 +70,7 @@ export default function ExternalLink(props: Props) {
     return (
         <a
             {...props}
+            ref={ref}
             target={props.target || '_blank'}
             rel={props.rel || 'noopener noreferrer'}
             onClick={handleClick}
@@ -78,4 +79,6 @@ export default function ExternalLink(props: Props) {
             {props.children}
         </a>
     );
-}
+});
+
+export default ExternalLink;

webapp/channels/src/components/file_attachment/__snapshots__/filename_overlay.test.tsx.snap

@@ -37,14 +37,14 @@ exports[`components/file_attachment/FilenameOverlay should match snapshot, stand
     placement="top"
     title="Download"
   >
-    <ExternalLink
+    <ForwardRef
       aria-label="download"
       download="test_filename"
       href="/api/v4/files/thumbnail_id?download=1"
       location="filename_overlay"
     >
       test_filename
-    </ExternalLink>
+    </ForwardRef>
   </WithTooltip>
 </div>
 `;
@@ -58,14 +58,14 @@ exports[`components/file_attachment/FilenameOverlay should match snapshot, with
     placement="top"
     title="Download"
   >
-    <ExternalLink
+    <ForwardRef
       aria-label="download"
       download="test_filename"
       href="/api/v4/files/thumbnail_id?download=1"
       location="filename_overlay"
     >
       <AttachmentIcon />
-    </ExternalLink>
+    </ForwardRef>
   </WithTooltip>
 </div>
 `;

webapp/channels/src/components/file_attachment/file_attachment.tsx

@@ -52,6 +52,7 @@ interface Props extends PropsFromRedux {
     * Display in compact format
     */
     compactDisplay?: boolean;
+    disablePreview?: boolean;
     handleFileDropdownOpened?: (open: boolean) => void;
 }
 
@@ -190,6 +191,7 @@ export default function FileAttachment(props: Props) {
             defaultItems.push(
                 <Menu.ItemAction
                     data-title='Public Image'
+                    key={fileInfo.id + '_publiclinkmenuitem'}
                     onClick={handleGetPublicLink}
                     ariaLabel={formatMessage({id: 'view_image_popover.publicLink', defaultMessage: 'Get a public link'})}
                     text={formatMessage({id: 'view_image_popover.publicLink', defaultMessage: 'Get a public link'})}
@@ -284,7 +286,10 @@ export default function FileAttachment(props: Props) {
                 onClick={onAttachmentClick}
             >
                 {loaded ? (
-                    <FileThumbnail fileInfo={fileInfo}/>
+                    <FileThumbnail
+                        fileInfo={fileInfo}
+                        disablePreview={props.disablePreview}
+                    />
                 ) : (
                     <div className='post-image__load'/>
                 )}

webapp/channels/src/components/file_attachment/file_thumbnail/file_thumbnail.tsx

@@ -7,55 +7,72 @@ import type {FileInfo} from '@mattermost/types/files';
 
 import {getFileThumbnailUrl, getFileUrl} from 'mattermost-redux/utils/file_utils';
 
+import type {FilePreviewInfo} from 'components/file_preview/file_preview';
+
 import Constants, {FileTypes} from 'utils/constants';
+import {getFileTypeFromMime} from 'utils/file_utils';
 import {
     getFileType,
     getIconClassName,
     isGIFImage,
 } from 'utils/utils';
 
+type FilePreviewInfoLimited = Pick<FilePreviewInfo, 'clientId' | 'name' | 'percent' | 'type'>;
+
 type Props = {
     enableSVGs: boolean;
-    fileInfo: FileInfo;
-}
+    fileInfo: FileInfo | FilePreviewInfo | FilePreviewInfoLimited;
+    disablePreview?: boolean;
+};
 
 const FileThumbnail = ({
     fileInfo,
     enableSVGs,
+    disablePreview,
 }: Props) => {
-    const type = getFileType(fileInfo.extension);
+    const {id, extension, has_preview_image: hasPreviewImage, width = 0, height = 0} = (fileInfo as FileInfo);
+    const mimeType = (fileInfo as FileInfo).mime_type || (fileInfo as FilePreviewInfo | FilePreviewInfoLimited).type;
 
-    if (type === FileTypes.IMAGE) {
-        let className = 'post-image';
+    let type = FileTypes.OTHER;
+    if (extension) {
+        type = getFileType(extension);
+    } else if (mimeType) {
+        type = getFileTypeFromMime(mimeType);
+    }
 
-        if (fileInfo.width < Constants.THUMBNAIL_WIDTH && fileInfo.height < Constants.THUMBNAIL_HEIGHT) {
-            className += ' small';
-        } else {
-            className += ' normal';
+    if (id && !disablePreview) {
+        if (type === FileTypes.IMAGE) {
+            let className = 'post-image';
+
+            if (width < Constants.THUMBNAIL_WIDTH && height < Constants.THUMBNAIL_HEIGHT) {
+                className += ' small';
+            } else {
+                className += ' normal';
+            }
+
+            let thumbnailUrl = getFileThumbnailUrl(id);
+            if (extension && isGIFImage(extension) && !hasPreviewImage) {
+                thumbnailUrl = getFileUrl(id);
+            }
+
+            return (
+                <div
+                    className={className}
+                    style={{
+                        backgroundImage: `url(${thumbnailUrl})`,
+                        backgroundSize: 'cover',
+                    }}
+                />
+            );
+        } else if (extension === FileTypes.SVG && enableSVGs) {
+            return (
+                <img
+                    alt={'file thumbnail image'}
+                    className='post-image normal'
+                    src={getFileUrl(id)}
+                />
+            );
         }
-
-        let thumbnailUrl = getFileThumbnailUrl(fileInfo.id);
-        if (isGIFImage(fileInfo.extension) && !fileInfo.has_preview_image) {
-            thumbnailUrl = getFileUrl(fileInfo.id);
-        }
-
-        return (
-            <div
-                className={className}
-                style={{
-                    backgroundImage: `url(${thumbnailUrl})`,
-                    backgroundSize: 'cover',
-                }}
-            />
-        );
-    } else if (fileInfo.extension === FileTypes.SVG && enableSVGs) {
-        return (
-            <img
-                alt={'file thumbnail image'}
-                className='post-image normal'
-                src={getFileUrl(fileInfo.id)}
-            />
-        );
     }
 
     return <div className={'file-icon ' + getIconClassName(type)}/>;

webapp/channels/src/components/file_search_results/__snapshots__/file_search_result_item.test.tsx.snap

@@ -75,57 +75,6 @@ exports[`components/file_search_result/FileSearchResultItem should match snapsho
         />
       </div>
     </div>
-    <OverlayTrigger
-      defaultOverlayShown={false}
-      delayShow={1000}
-      overlay={
-        <Tooltip
-          id="file-name__tooltip"
-        >
-          More Actions
-        </Tooltip>
-      }
-      placement="top"
-      trigger={
-        Array [
-          "hover",
-          "focus",
-        ]
-      }
-    >
-      <MenuWrapper
-        animationComponent={[Function]}
-        className=""
-        onToggle={[Function]}
-        stopPropagationOnToggle={true}
-      >
-        <a
-          className="action-icon dots-icon"
-          href="#"
-        >
-          <i
-            className="icon icon-dots-vertical"
-          />
-        </a>
-        <Menu
-          ariaLabel="file menu"
-          openLeft={true}
-        >
-          <MenuItemAction
-            ariaLabel="Open in channel"
-            onClick={[Function]}
-            show={true}
-            text="Open in channel"
-          />
-          <MenuItemAction
-            ariaLabel="Copy link"
-            onClick={[Function]}
-            show={true}
-            text="Copy link"
-          />
-        </Menu>
-      </MenuWrapper>
-    </OverlayTrigger>
     <OverlayTrigger
       defaultOverlayShown={false}
       delayShow={1000}
@@ -242,57 +191,6 @@ exports[`components/file_search_result/FileSearchResultItem should match snapsho
         />
       </div>
     </div>
-    <OverlayTrigger
-      defaultOverlayShown={false}
-      delayShow={1000}
-      overlay={
-        <Tooltip
-          id="file-name__tooltip"
-        >
-          More Actions
-        </Tooltip>
-      }
-      placement="top"
-      trigger={
-        Array [
-          "hover",
-          "focus",
-        ]
-      }
-    >
-      <MenuWrapper
-        animationComponent={[Function]}
-        className=""
-        onToggle={[Function]}
-        stopPropagationOnToggle={true}
-      >
-        <a
-          className="action-icon dots-icon"
-          href="#"
-        >
-          <i
-            className="icon icon-dots-vertical"
-          />
-        </a>
-        <Menu
-          ariaLabel="file menu"
-          openLeft={true}
-        >
-          <MenuItemAction
-            ariaLabel="Open in channel"
-            onClick={[Function]}
-            show={true}
-            text="Open in channel"
-          />
-          <MenuItemAction
-            ariaLabel="Copy link"
-            onClick={[Function]}
-            show={true}
-            text="Copy link"
-          />
-        </Menu>
-      </MenuWrapper>
-    </OverlayTrigger>
     <OverlayTrigger
       defaultOverlayShown={false}
       delayShow={1000}
@@ -409,57 +307,6 @@ exports[`components/file_search_result/FileSearchResultItem should match snapsho
         />
       </div>
     </div>
-    <OverlayTrigger
-      defaultOverlayShown={false}
-      delayShow={1000}
-      overlay={
-        <Tooltip
-          id="file-name__tooltip"
-        >
-          More Actions
-        </Tooltip>
-      }
-      placement="top"
-      trigger={
-        Array [
-          "hover",
-          "focus",
-        ]
-      }
-    >
-      <MenuWrapper
-        animationComponent={[Function]}
-        className=""
-        onToggle={[Function]}
-        stopPropagationOnToggle={true}
-      >
-        <a
-          className="action-icon dots-icon"
-          href="#"
-        >
-          <i
-            className="icon icon-dots-vertical"
-          />
-        </a>
-        <Menu
-          ariaLabel="file menu"
-          openLeft={true}
-        >
-          <MenuItemAction
-            ariaLabel="Open in channel"
-            onClick={[Function]}
-            show={true}
-            text="Open in channel"
-          />
-          <MenuItemAction
-            ariaLabel="Copy link"
-            onClick={[Function]}
-            show={true}
-            text="Copy link"
-          />
-        </Menu>
-      </MenuWrapper>
-    </OverlayTrigger>
     <OverlayTrigger
       defaultOverlayShown={false}
       delayShow={1000}
@@ -571,57 +418,6 @@ exports[`components/file_search_result/FileSearchResultItem should match snapsho
         />
       </div>
     </div>
-    <OverlayTrigger
-      defaultOverlayShown={false}
-      delayShow={1000}
-      overlay={
-        <Tooltip
-          id="file-name__tooltip"
-        >
-          More Actions
-        </Tooltip>
-      }
-      placement="top"
-      trigger={
-        Array [
-          "hover",
-          "focus",
-        ]
-      }
-    >
-      <MenuWrapper
-        animationComponent={[Function]}
-        className=""
-        onToggle={[Function]}
-        stopPropagationOnToggle={true}
-      >
-        <a
-          className="action-icon dots-icon"
-          href="#"
-        >
-          <i
-            className="icon icon-dots-vertical"
-          />
-        </a>
-        <Menu
-          ariaLabel="file menu"
-          openLeft={true}
-        >
-          <MenuItemAction
-            ariaLabel="Open in channel"
-            onClick={[Function]}
-            show={true}
-            text="Open in channel"
-          />
-          <MenuItemAction
-            ariaLabel="Copy link"
-            onClick={[Function]}
-            show={true}
-            text="Copy link"
-          />
-        </Menu>
-      </MenuWrapper>
-    </OverlayTrigger>
     <OverlayTrigger
       defaultOverlayShown={false}
       delayShow={1000}

webapp/channels/src/components/file_search_results/file_search_result_item.tsx

@@ -145,43 +145,45 @@ export default class FileSearchResultItem extends React.PureComponent<Props, Sta
                             />
                         </div>
                     </div>
-                    <OverlayTrigger
-                        delayShow={1000}
-                        placement='top'
-                        overlay={
-                            <Tooltip id='file-name__tooltip'>
-                                {localizeMessage('file_search_result_item.more_actions', 'More Actions')}
-                            </Tooltip>
-                        }
-                    >
-                        <MenuWrapper
-                            onToggle={this.keepOpen}
-                            stopPropagationOnToggle={true}
+                    {this.props.fileInfo.post_id && (
+                        <OverlayTrigger
+                            delayShow={1000}
+                            placement='top'
+                            overlay={
+                                <Tooltip id='file-name__tooltip'>
+                                    {localizeMessage('file_search_result_item.more_actions', 'More Actions')}
+                                </Tooltip>
+                            }
                         >
-                            <a
-                                href='#'
-                                className='action-icon dots-icon'
+                            <MenuWrapper
+                                onToggle={this.keepOpen}
+                                stopPropagationOnToggle={true}
                             >
-                                <i className='icon icon-dots-vertical'/>
-                            </a>
-                            <Menu
-                                ariaLabel={'file menu'}
-                                openLeft={true}
-                            >
-                                <Menu.ItemAction
-                                    onClick={this.jumpToConv}
-                                    ariaLabel={localizeMessage('file_search_result_item.open_in_channel', 'Open in channel')}
-                                    text={localizeMessage('file_search_result_item.open_in_channel', 'Open in channel')}
-                                />
-                                <Menu.ItemAction
-                                    onClick={this.copyLink}
-                                    ariaLabel={localizeMessage('file_search_result_item.copy_link', 'Copy link')}
-                                    text={localizeMessage('file_search_result_item.copy_link', 'Copy link')}
-                                />
-                                {this.renderPluginItems()}
-                            </Menu>
-                        </MenuWrapper>
-                    </OverlayTrigger>
+                                <a
+                                    href='#'
+                                    className='action-icon dots-icon'
+                                >
+                                    <i className='icon icon-dots-vertical'/>
+                                </a>
+                                <Menu
+                                    ariaLabel={'file menu'}
+                                    openLeft={true}
+                                >
+                                    <Menu.ItemAction
+                                        onClick={this.jumpToConv}
+                                        ariaLabel={localizeMessage('file_search_result_item.open_in_channel', 'Open in channel')}
+                                        text={localizeMessage('file_search_result_item.open_in_channel', 'Open in channel')}
+                                    />
+                                    <Menu.ItemAction
+                                        onClick={this.copyLink}
+                                        ariaLabel={localizeMessage('file_search_result_item.copy_link', 'Copy link')}
+                                        text={localizeMessage('file_search_result_item.copy_link', 'Copy link')}
+                                    />
+                                    {this.renderPluginItems()}
+                                </Menu>
+                            </MenuWrapper>
+                        </OverlayTrigger>
+                    )}
                     <OverlayTrigger
                         delayShow={1000}
                         placement='top'

webapp/channels/src/components/integrations/__snapshots__/abstract_command.test.tsx.snap

@@ -139,7 +139,7 @@ exports[`components/integrations/AbstractCommand should match snapshot 1`] = `
               id="add_command.trigger.helpReserved"
               values={
                 Object {
-                  "link": <ExternalLink
+                  "link": <ForwardRef
                     href="https://mattermost.com/pl/custom-slash-commands"
                     location="abstract_command"
                   >
@@ -147,7 +147,7 @@ exports[`components/integrations/AbstractCommand should match snapshot 1`] = `
                       defaultMessage="See built-in slash commands"
                       id="add_command.trigger.helpReservedLinkText"
                     />
-                  </ExternalLink>,
+                  </ForwardRef>,
                 }
               }
             />
@@ -588,7 +588,7 @@ exports[`components/integrations/AbstractCommand should match snapshot when head
               id="add_command.trigger.helpReserved"
               values={
                 Object {
-                  "link": <ExternalLink
+                  "link": <ForwardRef
                     href="https://mattermost.com/pl/custom-slash-commands"
                     location="abstract_command"
                   >
@@ -596,7 +596,7 @@ exports[`components/integrations/AbstractCommand should match snapshot when head
                       defaultMessage="See built-in slash commands"
                       id="add_command.trigger.helpReservedLinkText"
                     />
-                  </ExternalLink>,
+                  </ForwardRef>,
                 }
               }
             />
@@ -1037,7 +1037,7 @@ exports[`components/integrations/AbstractCommand should match snapshot, displays
               id="add_command.trigger.helpReserved"
               values={
                 Object {
-                  "link": <ExternalLink
+                  "link": <ForwardRef
                     href="https://mattermost.com/pl/custom-slash-commands"
                     location="abstract_command"
                   >
@@ -1045,7 +1045,7 @@ exports[`components/integrations/AbstractCommand should match snapshot, displays
                       defaultMessage="See built-in slash commands"
                       id="add_command.trigger.helpReservedLinkText"
                     />
-                  </ExternalLink>,
+                  </ForwardRef>,
                 }
               }
             />

webapp/channels/src/components/integrations/__snapshots__/abstract_outgoing_webhook.test.tsx.snap

@@ -291,7 +291,7 @@ callbackUrl2.com
               id="add_outgoing_webhook.callbackUrls.help"
               values={
                 Object {
-                  "link": <ExternalLink
+                  "link": <ForwardRef
                     href="https://mattermost.com/pl/default-allow-untrusted-internal-connections"
                     location="abstract_outgoing_webhook"
                   >
@@ -299,7 +299,7 @@ callbackUrl2.com
                       defaultMessage="trusted internal connection"
                       id="add_outgoing_webhook.callbackUrls.helpLinkText"
                     />
-                  </ExternalLink>,
+                  </ForwardRef>,
                 }
               }
             />

webapp/channels/src/components/integrations/installed_oauth_apps/__snapshots__/installed_oauth_apps.test.tsx.snap

@@ -29,7 +29,7 @@ exports[`components/integrations/InstalledOAuthApps should match snapshot 1`] =
       id="installed_oauth_apps.help"
       values={
         Object {
-          "appDirectory": <ExternalLink
+          "appDirectory": <ForwardRef
             href="https://mattermost.com/marketplace/"
             location="installed_oauth_apps"
           >
@@ -37,8 +37,8 @@ exports[`components/integrations/InstalledOAuthApps should match snapshot 1`] =
               defaultMessage="App Directory"
               id="installed_oauth_apps.help.appDirectory"
             />
-          </ExternalLink>,
-          "oauthApplications": <ExternalLink
+          </ForwardRef>,
+          "oauthApplications": <ForwardRef
             href="https://mattermost.com/pl/setup-oauth-2.0"
             location="installed_oauth_apps"
           >
@@ -46,7 +46,7 @@ exports[`components/integrations/InstalledOAuthApps should match snapshot 1`] =
               defaultMessage="OAuth 2.0 applications"
               id="installed_oauth_apps.help.oauthApplications"
             />
-          </ExternalLink>,
+          </ForwardRef>,
         }
       }
     />

webapp/channels/src/components/integrations/installed_outgoing_webhooks/__snapshots__/installed_outgoing_webhooks.test.tsx.snap

@@ -257,7 +257,7 @@ exports[`components/integrations/InstalledOutgoingWebhooks should match snapshot
       id="installed_outgoing_webhooks.help"
       values={
         Object {
-          "appDirectory": <ExternalLink
+          "appDirectory": <ForwardRef
             href="https://mattermost.com/marketplace"
             location="installed_outgoing_webhooks"
           >
@@ -265,8 +265,8 @@ exports[`components/integrations/InstalledOutgoingWebhooks should match snapshot
               defaultMessage="App Directory"
               id="installed_outgoing_webhooks.help.appDirectory"
             />
-          </ExternalLink>,
-          "buildYourOwn": <ExternalLink
+          </ForwardRef>,
+          "buildYourOwn": <ForwardRef
             href="https://mattermost.com/pl/setup-outgoing-webhooks"
             location="installed_outgoing_webhooks"
           >
@@ -274,7 +274,7 @@ exports[`components/integrations/InstalledOutgoingWebhooks should match snapshot
               defaultMessage="Build your own"
               id="installed_outgoing_webhooks.help.buildYourOwn"
             />
-          </ExternalLink>,
+          </ForwardRef>,
         }
       }
     />

webapp/channels/src/components/integrations/outgoing_oauth_connections/__snapshots__/installed_outgoing_oauth_connections.test.tsx.snap

@@ -85,7 +85,7 @@ exports[`components/integrations/InstalledOutgoingOAuthConnections should match
               id="installed_outgoing_oauth_connections.help"
               values={
                 Object {
-                  "outgoingOauthConnections": <ExternalLink
+                  "outgoingOauthConnections": <ForwardRef
                     href="https://mattermost.com/pl/setup-oauth-2.0"
                     location="installed_outgoing_oauth_connections"
                   >
@@ -93,7 +93,7 @@ exports[`components/integrations/InstalledOutgoingOAuthConnections should match
                       defaultMessage="Outgoing OAuth Connections"
                       id="installed_outgoing_oauth_connections.help.outgoingOauthConnections"
                     />
-                  </ExternalLink>,
+                  </ForwardRef>,
                 }
               }
             />
@@ -180,7 +180,7 @@ exports[`components/integrations/InstalledOutgoingOAuthConnections should match
                 id="installed_outgoing_oauth_connections.help"
                 values={
                   Object {
-                    "outgoingOauthConnections": <ExternalLink
+                    "outgoingOauthConnections": <ForwardRef
                       href="https://mattermost.com/pl/setup-oauth-2.0"
                       location="installed_outgoing_oauth_connections"
                     >
@@ -188,13 +188,13 @@ exports[`components/integrations/InstalledOutgoingOAuthConnections should match
                         defaultMessage="Outgoing OAuth Connections"
                         id="installed_outgoing_oauth_connections.help.outgoingOauthConnections"
                       />
-                    </ExternalLink>,
+                    </ForwardRef>,
                   }
                 }
               >
                 <span>
                   Create 
-                  <ExternalLink
+                  <ForwardRef
                     href="https://mattermost.com/pl/setup-oauth-2.0"
                     key=".$.1"
                     location="installed_outgoing_oauth_connections"
@@ -215,7 +215,7 @@ exports[`components/integrations/InstalledOutgoingOAuthConnections should match
                         </span>
                       </FormattedMessage>
                     </a>
-                  </ExternalLink>
+                  </ForwardRef>
                    to securely integrate bots and third-party apps with Mattermost.
                 </span>
               </FormattedMessage>

webapp/channels/src/components/menu/menu.tsx

@@ -64,11 +64,25 @@ type MenuProps = {
     width?: string;
 }
 
+const defaultAnchorOrigin = {vertical: 'bottom', horizontal: 'left'};
+const defaultTransformOrigin = {vertical: 'top', horizontal: 'left'};
+
+type VerticalOrigin = 'top' | 'center' | 'bottom';
+type HorizontalOrigin = 'left' | 'center' | 'right';
+
 interface Props {
     menuButton: MenuButtonProps;
     menuButtonTooltip?: MenuButtonTooltipProps;
     menu: MenuProps;
     children: ReactNode[];
+    anchorOrigin?: {
+        vertical: VerticalOrigin;
+        horizontal: HorizontalOrigin;
+    };
+    transformOrigin?: {
+        vertical: VerticalOrigin;
+        horizontal: HorizontalOrigin;
+    };
 }
 
 /**
@@ -236,6 +250,8 @@ export function Menu(props: Props) {
                     onKeyDown={handleMenuKeyDown}
                     className={A11yClassNames.POPUP}
                     width={props.menu.width}
+                    anchorOrigin={props.anchorOrigin || defaultAnchorOrigin}
+                    transformOrigin={props.transformOrigin || defaultTransformOrigin}
                     disableAutoFocusItem={disableAutoFocusItem} // This is not anti-pattern, see handleMenuButtonMouseDown
                     MenuListProps={{
                         id: props.menu.id,

webapp/channels/src/components/plugin_marketplace/marketplace_item/marketplace_item_plugin/__snapshots__/marketplace_item_plugin.test.tsx.snap

@@ -1006,7 +1006,7 @@ exports[`components/MarketplaceItemPlugin UpdateDetails should render with relea
         releaseNotesUrl="http://example.com/release"
         version="0.0.2"
       >
-        <ExternalLink
+        <ForwardRef
           href="http://example.com/release"
           location="marketplace_item_plugin"
         >
@@ -1019,7 +1019,7 @@ exports[`components/MarketplaceItemPlugin UpdateDetails should render with relea
           >
             0.0.2
           </a>
-        </ExternalLink>
+        </ForwardRef>
       </UpdateVersion>
        - 
       <b>

webapp/channels/src/components/post_view/message_attachments/message_attachment/__snapshots__/message_attachment.test.tsx.snap

@@ -24,7 +24,7 @@ exports[`components/post_view/MessageAttachment should call actions.doPostAction
         }
       }
     >
-      <ExternalLink
+      <ForwardRef
         href="author_link"
         key="attachment__author-name"
         location="message_attachment"
@@ -41,17 +41,17 @@ exports[`components/post_view/MessageAttachment should call actions.doPostAction
         >
           author_name
         </span>
-      </ExternalLink>
+      </ForwardRef>
       <h1
         className="attachment__title"
       >
-        <ExternalLink
+        <ForwardRef
           className="attachment__title-link"
           href="title_link"
           location="message_attachment"
         >
           title
-        </ExternalLink>
+        </ForwardRef>
       </h1>
       <div>
         <div
@@ -170,7 +170,7 @@ exports[`components/post_view/MessageAttachment should match snapshot 1`] = `
         }
       }
     >
-      <ExternalLink
+      <ForwardRef
         href="author_link"
         key="attachment__author-name"
         location="message_attachment"
@@ -187,17 +187,17 @@ exports[`components/post_view/MessageAttachment should match snapshot 1`] = `
         >
           author_name
         </span>
-      </ExternalLink>
+      </ForwardRef>
       <h1
         className="attachment__title"
       >
-        <ExternalLink
+        <ForwardRef
           className="attachment__title-link"
           href="title_link"
           location="message_attachment"
         >
           title
-        </ExternalLink>
+        </ForwardRef>
       </h1>
       <div>
         <div
@@ -312,7 +312,7 @@ exports[`components/post_view/MessageAttachment should match snapshot when no fo
         }
       }
     >
-      <ExternalLink
+      <ForwardRef
         href="author_link"
         key="attachment__author-name"
         location="message_attachment"
@@ -329,17 +329,17 @@ exports[`components/post_view/MessageAttachment should match snapshot when no fo
         >
           author_name
         </span>
-      </ExternalLink>
+      </ForwardRef>
       <h1
         className="attachment__title"
       >
-        <ExternalLink
+        <ForwardRef
           className="attachment__title-link"
           href="title_link"
           location="message_attachment"
         >
           title
-        </ExternalLink>
+        </ForwardRef>
       </h1>
       <div>
         <div

webapp/channels/src/components/product_notices_modal/__snapshots__/product_notices.test.tsx.snap

@@ -85,7 +85,7 @@ exports[`ProductNoticesModal Match snapshot for user notice 1`] = `
       message="descr"
     />
   </span>
-  <ExternalLink
+  <ForwardRef
     className="GenericModal__button actionButton"
     href="http://download.com/path"
     id="actionButton"
@@ -93,7 +93,7 @@ exports[`ProductNoticesModal Match snapshot for user notice 1`] = `
     onClick={[Function]}
   >
     Download
-  </ExternalLink>
+  </ForwardRef>
   <div
     className="productNotices__imageDiv"
   />
@@ -157,7 +157,7 @@ exports[`ProductNoticesModal Should match snapshot for system admin notice 1`] =
       message="your eyes only! [test](https://test.com)"
     />
   </span>
-  <ExternalLink
+  <ForwardRef
     className="GenericModal__button actionButton"
     href="http://download.com/path"
     id="actionButton"
@@ -165,7 +165,7 @@ exports[`ProductNoticesModal Should match snapshot for system admin notice 1`] =
     onClick={[Function]}
   >
     Download
-  </ExternalLink>
+  </ForwardRef>
   <div
     className="productNotices__imageDiv"
   >

webapp/channels/src/components/signup/__snapshots__/signup.test.tsx.snap

@@ -105,13 +105,13 @@ exports[`components/signup/Signup should match snapshot for all signup options e
                 className="link"
               >
                 Sign up at 
-                <ExternalLink
+                <ForwardRef
                   href="https://mattermost.com/security-updates/"
                   key=".1"
                   location="signup"
                 >
                   https://mattermost.com/security-updates/
-                </ExternalLink>
+                </ForwardRef>
                 .
               </span>
             </div>
@@ -279,13 +279,13 @@ exports[`components/signup/Signup should match snapshot for all signup options e
                 className="link"
               >
                 Sign up at 
-                <ExternalLink
+                <ForwardRef
                   href="https://mattermost.com/security-updates/"
                   key=".1"
                   location="signup"
                 >
                   https://mattermost.com/security-updates/
-                </ExternalLink>
+                </ForwardRef>
                 .
               </span>
             </div>

webapp/channels/src/components/widgets/inputs/input/input.tsx

@@ -19,7 +19,7 @@ export enum SIZE {
     LARGE = 'large',
 }
 
-export type CustomMessageInputType = {type: 'info' | 'error' | 'warning' | 'success'; value: React.ReactNode} | null;
+export type CustomMessageInputType = {type?: 'info' | 'error' | 'warning' | 'success'; value: React.ReactNode} | null;
 
 interface InputProps extends React.InputHTMLAttributes<HTMLInputElement | HTMLTextAreaElement> {
     required?: boolean;
@@ -225,14 +225,15 @@ const Input = React.forwardRef((
             </fieldset>
             {customInputLabel && (
                 <div className={`Input___customMessage Input___${customInputLabel.type}`}>
-                    <i
-                        className={classNames(`icon ${customInputLabel.type}`, {
-                            'icon-alert-outline': customInputLabel.type === ItemStatus.WARNING,
-                            'icon-alert-circle-outline': customInputLabel.type === ItemStatus.ERROR,
-                            'icon-information-outline': customInputLabel.type === ItemStatus.INFO,
-                            'icon-check': customInputLabel.type === ItemStatus.SUCCESS,
-                        })}
-                    />
+                    {customInputLabel.type && (
+                        <i
+                            className={classNames(`icon ${customInputLabel.type}`, {
+                                'icon-alert-outline': customInputLabel.type === ItemStatus.WARNING,
+                                'icon-alert-circle-outline': customInputLabel.type === ItemStatus.ERROR,
+                                'icon-information-outline': customInputLabel.type === ItemStatus.INFO,
+                                'icon-check': customInputLabel.type === ItemStatus.SUCCESS,
+                            })}
+                        />)}
                     <span>{customInputLabel.value}</span>
                 </div>
             )}

webapp/channels/src/components/widgets/menu/menu_items/menu_item_external_link.test.tsx

@@ -16,7 +16,7 @@ describe('components/MenuItemExternalLink', () => {
         );
 
         expect(wrapper).toMatchInlineSnapshot(`
-            <ExternalLink
+            <ForwardRef
               href="http://test.com"
               location="menu_item_external_link"
             >
@@ -25,7 +25,7 @@ describe('components/MenuItemExternalLink', () => {
               >
                 Whatever
               </span>
-            </ExternalLink>
+            </ForwardRef>
         `);
     });
 });

webapp/channels/src/components/youtube_video/__snapshots__/youtube_video.test.tsx.snap

@@ -44,7 +44,7 @@ exports[`YoutubeVideo should match init snapshot 1`] = `
           <span
             className="video-title"
           >
-            <ExternalLink
+            <ForwardRef
               href="https://www.youtube.com/watch?v=xqCoNej8Zxo"
               location="youtube_video"
             >
@@ -57,7 +57,7 @@ exports[`YoutubeVideo should match init snapshot 1`] = `
               >
                 Youtube title
               </a>
-            </ExternalLink>
+            </ForwardRef>
           </span>
         </h4>
         <div
@@ -118,12 +118,12 @@ exports[`YoutubeVideo should match snapshot for playing state 1`] = `
       <span
         className="video-title"
       >
-        <ExternalLink
+        <ForwardRef
           href="https://www.youtube.com/watch?v=xqCoNej8Zxo"
           location="youtube_video"
         >
           Youtube title
-        </ExternalLink>
+        </ForwardRef>
       </span>
     </h4>
     <div

webapp/channels/src/i18n/en.json

@@ -3035,6 +3035,31 @@
   "change_url.shorter": "URLs must have maximum 64 characters.",
   "change_url.startAndEndWithLetter": "URLs must start and end with a lowercase letter or number.",
   "change_url.startWithLetter": "URLs must start with a lowercase letter or number.",
+  "channel_bookmarks.addBookmark": "Add a bookmark",
+  "channel_bookmarks.addBookmarkLimitReached": "Cannot add more than {limit} bookmarks",
+  "channel_bookmarks.addLink": "Add a link",
+  "channel_bookmarks.attachFile": "Attach a file",
+  "channel_bookmarks.confirm.delete.button": "Yes, delete",
+  "channel_bookmarks.confirm.delete.text": "Are you sure you want to delete the bookmark <strong>{displayName}</strong>?",
+  "channel_bookmarks.confirm.delete.title": "Delete bookmark",
+  "channel_bookmarks.copy": "Copy link",
+  "channel_bookmarks.copyFilePublicLink": "Get a public link",
+  "channel_bookmarks.create.confirm_add.button": "Add bookmark",
+  "channel_bookmarks.create.confirm_save.button": "Save bookmark",
+  "channel_bookmarks.create.edit.title": "Edit bookmark",
+  "channel_bookmarks.create.error.generic_save": "There was an error trying to save the bookmark.",
+  "channel_bookmarks.create.error.invalid_url": "Please enter a valid link",
+  "channel_bookmarks.create.file_input.edit": "Edit",
+  "channel_bookmarks.create.file_input.label": "Attachment",
+  "channel_bookmarks.create.link_info": "Add a link to any post, file, or any external link",
+  "channel_bookmarks.create.link_placeholder": "Link",
+  "channel_bookmarks.create.title": "Add a bookmark",
+  "channel_bookmarks.create.title_input.clear_emoji": "Remove emoji",
+  "channel_bookmarks.create.title_input.label": "Title",
+  "channel_bookmarks.delete": "Delete",
+  "channel_bookmarks.edit": "Edit",
+  "channel_bookmarks.editBookmarkLabel": "Bookmark menu",
+  "channel_bookmarks.open": "Open",
   "channel_groups": "{channel} Groups",
   "channel_header.addChannelHeader": "Add a channel header",
   "channel_header.channelFiles": "Channel files",
@@ -3617,6 +3642,7 @@
   "file_upload.fileAbove": "File above {max}MB could not be uploaded: {filename}",
   "file_upload.filesAbove": "Files above {max}MB could not be uploaded: {filenames}",
   "file_upload.generic_error": "There was a problem uploading your files.",
+  "file_upload.generic_error_file": "There was a problem uploading your file.",
   "file_upload.limited": "Uploads limited to {count, number} files maximum. Please use additional posts for more files.",
   "file_upload.menuAriaLabel": "Upload type selector",
   "file_upload.pasted": "Image Pasted at ",

webapp/channels/src/packages/mattermost-redux/src/action_types/channel_bookmarks.ts

@@ -0,0 +1,11 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import keyMirror from 'mattermost-redux/utils/key_mirror';
+
+export default keyMirror({
+    RECEIVED_BOOKMARK: null,
+    RECEIVED_BOOKMARKS: null,
+
+    BOOKMARK_DELETED: null,
+});

webapp/channels/src/packages/mattermost-redux/src/action_types/index.ts

@@ -4,6 +4,7 @@
 import AdminTypes from './admin';
 import AppsTypes from './apps';
 import BotTypes from './bots';
+import ChannelBookmarkTypes from './channel_bookmarks';
 import ChannelCategoryTypes from './channel_categories';
 import ChannelTypes from './channels';
 import CloudTypes from './cloud';
@@ -55,4 +56,5 @@ export {
     HostedCustomerTypes,
     DraftTypes,
     PlaybookType,
+    ChannelBookmarkTypes,
 };

webapp/channels/src/packages/mattermost-redux/src/actions/channel_bookmarks.ts

@@ -0,0 +1,104 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import type {ChannelBookmarkCreate, ChannelBookmarkPatch} from '@mattermost/types/channel_bookmarks';
+
+import {ChannelBookmarkTypes} from 'mattermost-redux/action_types';
+import {Client4} from 'mattermost-redux/client';
+import {getChannelBookmark} from 'mattermost-redux/selectors/entities/channel_bookmarks';
+import type {DispatchFunc, GetStateFunc} from 'mattermost-redux/types/actions';
+
+import {logError} from './errors';
+import {forceLogoutIfNecessary} from './helpers';
+
+export function deleteBookmark(channelId: string, id: string, connectionId: string) {
+    return async (dispatch: DispatchFunc, getState: GetStateFunc) => {
+        const state = getState();
+        const bookmark = getChannelBookmark(state, channelId, id);
+
+        try {
+            await Client4.deleteChannelBookmark(channelId, id, connectionId);
+
+            dispatch({
+                type: ChannelBookmarkTypes.BOOKMARK_DELETED,
+                data: bookmark,
+            });
+        } catch (error) {
+            return {
+                data: false,
+                error,
+            };
+        }
+
+        return {data: true};
+    };
+}
+
+export function createBookmark(channelId: string, bookmark: ChannelBookmarkCreate, connectionId: string) {
+    return async (dispatch: DispatchFunc) => {
+        try {
+            const createdBookmark = await Client4.createChannelBookmark(channelId, bookmark, connectionId);
+
+            dispatch({
+                type: ChannelBookmarkTypes.RECEIVED_BOOKMARK,
+                data: createdBookmark,
+            });
+        } catch (error) {
+            return {
+                data: false,
+                error,
+            };
+        }
+
+        return {data: true};
+    };
+}
+
+export function editBookmark(channelId: string, id: string, patch: ChannelBookmarkPatch, connectionId: string) {
+    return async (dispatch: DispatchFunc) => {
+        try {
+            const {updated, deleted} = await Client4.updateChannelBookmark(channelId, id, patch, connectionId);
+
+            if (updated) {
+                dispatch({
+                    type: ChannelBookmarkTypes.RECEIVED_BOOKMARK,
+                    data: updated,
+                });
+            }
+
+            if (deleted) {
+                dispatch({
+                    type: ChannelBookmarkTypes.BOOKMARK_DELETED,
+                    data: deleted,
+                });
+            }
+        } catch (error) {
+            return {
+                data: false,
+                error,
+            };
+        }
+
+        return {data: true};
+    };
+}
+
+export function fetchChannelBookmarks(channelId: string) {
+    return async (dispatch: DispatchFunc, getState: GetStateFunc) => {
+        let bookmarks;
+        try {
+            bookmarks = await Client4.getChannelBookmarks(channelId);
+
+            dispatch({
+                type: ChannelBookmarkTypes.RECEIVED_BOOKMARKS,
+                data: {channelId, bookmarks},
+            });
+        } catch (error) {
+            forceLogoutIfNecessary(error, dispatch, getState);
+            dispatch(logError(error));
+            return {error};
+        }
+
+        return {data: bookmarks};
+    };
+}

webapp/channels/src/packages/mattermost-redux/src/reducers/entities/channel_bookmarks.ts

@@ -0,0 +1,74 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {combineReducers, type AnyAction} from 'redux';
+
+import type {ChannelBookmark, ChannelBookmarksState} from '@mattermost/types/channel_bookmarks';
+import type {Channel} from '@mattermost/types/channels';
+import type {IDMappedObjects} from '@mattermost/types/utilities';
+
+import {ChannelBookmarkTypes, UserTypes, ChannelTypes} from 'mattermost-redux/action_types';
+
+const toNewObj = <T extends {id: string}>(current: IDMappedObjects<T>, arr: T[]) => {
+    return arr.reduce((acc, x) => {
+        return {...acc, [x.id]: x};
+    }, {...current});
+};
+
+export function byChannelId(state: ChannelBookmarksState['byChannelId'] = {}, action: AnyAction) {
+    switch (action.type) {
+    case ChannelBookmarkTypes.RECEIVED_BOOKMARKS: {
+        const channelId: Channel['id'] = action.data.channelId;
+        const bookmarks: ChannelBookmark[] = action.data.bookmarks;
+
+        return {
+            ...state,
+            [channelId]: toNewObj(state[channelId], bookmarks),
+        };
+    }
+
+    case ChannelBookmarkTypes.RECEIVED_BOOKMARK: {
+        const bookmark: ChannelBookmark = action.data;
+        const {id, channel_id: channelId} = bookmark;
+
+        return {
+            ...state,
+            [channelId]: {
+                ...state[channelId],
+                [id]: bookmark,
+            },
+        };
+    }
+
+    case ChannelBookmarkTypes.BOOKMARK_DELETED: {
+        const bookmark: ChannelBookmark = action.data;
+
+        const channelNextState = {...state[bookmark.channel_id]};
+
+        Reflect.deleteProperty(channelNextState, bookmark.id);
+
+        const nextState = {...state, [bookmark.channel_id]: channelNextState};
+
+        return nextState;
+    }
+
+    case ChannelTypes.LEAVE_CHANNEL: {
+        const channelId: string = action.data.channelId;
+
+        const nextState = {...state};
+
+        Reflect.deleteProperty(nextState, channelId);
+
+        return nextState;
+    }
+
+    case UserTypes.LOGOUT_SUCCESS:
+        return {};
+    default:
+        return state;
+    }
+}
+
+export default combineReducers({
+    byChannelId,
+});

webapp/channels/src/packages/mattermost-redux/src/reducers/entities/files.ts

@@ -4,10 +4,11 @@
 import type {AnyAction} from 'redux';
 import {combineReducers} from 'redux';
 
+import type {ChannelBookmark} from '@mattermost/types/channel_bookmarks';
 import type {FileInfo, FileSearchResultItem} from '@mattermost/types/files';
 import type {Post} from '@mattermost/types/posts';
 
-import {FileTypes, PostTypes, UserTypes} from 'mattermost-redux/action_types';
+import {FileTypes, PostTypes, UserTypes, ChannelBookmarkTypes} from 'mattermost-redux/action_types';
 
 export function files(state: Record<string, FileInfo> = {}, action: AnyAction) {
     switch (action.type) {
@@ -53,6 +54,43 @@ export function files(state: Record<string, FileInfo> = {}, action: AnyAction) {
         return state;
     }
 
+    case ChannelBookmarkTypes.RECEIVED_BOOKMARKS: {
+        const bookmarks: ChannelBookmark[] = action.data.bookmarks;
+
+        const nextState = {...state};
+
+        bookmarks.forEach(({file}) => {
+            if (file) {
+                nextState[file.id] = file;
+            }
+        });
+
+        return nextState;
+    }
+
+    case ChannelBookmarkTypes.RECEIVED_BOOKMARK: {
+        const {file}: ChannelBookmark = action.data;
+
+        if (file) {
+            return {...state, [file.id]: file};
+        }
+
+        return state;
+    }
+
+    case ChannelBookmarkTypes.BOOKMARK_DELETED: {
+        const {file}: ChannelBookmark = action.data;
+
+        if (!file) {
+            return state;
+        }
+
+        const nextState = {...state};
+        Reflect.deleteProperty(nextState, file.id);
+
+        return nextState;
+    }
+
     case UserTypes.LOGOUT_SUCCESS:
         return {};
     default:

webapp/channels/src/packages/mattermost-redux/src/reducers/entities/index.ts

@@ -6,6 +6,7 @@ import {combineReducers} from 'redux';
 import admin from './admin';
 import apps from './apps';
 import bots from './bots';
+import channelBookmarks from './channel_bookmarks';
 import channelCategories from './channel_categories';
 import channels from './channels';
 import cloud from './cloud';
@@ -53,4 +54,5 @@ export default combineReducers({
     cloud,
     usage,
     hostedCustomer,
+    channelBookmarks,
 });

webapp/channels/src/packages/mattermost-redux/src/selectors/entities/channel_bookmarks.ts

@@ -0,0 +1,21 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import type {ChannelBookmarksState} from '@mattermost/types/channel_bookmarks';
+import type {GlobalState} from '@mattermost/types/store';
+
+const EMPTY_BOOKMARKS = {};
+
+export const getChannelBookmarks = (state: GlobalState, channelId: string): ChannelBookmarksState['byChannelId'][string] => {
+    const bookmarks = state.entities.channelBookmarks.byChannelId[channelId];
+
+    if (!bookmarks) {
+        return EMPTY_BOOKMARKS;
+    }
+
+    return bookmarks;
+};
+
+export const getChannelBookmark = (state: GlobalState, channelId: string, bookmarkId: string) => {
+    return getChannelBookmarks(state, channelId)[bookmarkId];
+};

webapp/channels/src/packages/mattermost-redux/src/store/initial_state.ts

@@ -65,6 +65,9 @@ const state: GlobalState = {
             messageCounts: {},
             channelsMemberCount: {},
         },
+        channelBookmarks: {
+            byChannelId: {},
+        },
         posts: {
             posts: {},
             postsReplies: {},

webapp/channels/src/utils/constants.tsx

@@ -459,6 +459,8 @@ export const ModalIdentifiers = {
     EXPORT_USER_DATA_MODAL: 'export_user_data_modal',
     UPGRADE_EXPORT_DATA_MODAL: 'upgrade_export_data_modal',
     EXPORT_ERROR_MODAL: 'export_error_modal',
+    CHANNEL_BOOKMARK_DELETE: 'channel_bookmark_delete',
+    CHANNEL_BOOKMARK_CREATE: 'channel_bookmark_create',
 };
 
 export const UserStatuses = {
@@ -584,6 +586,10 @@ export const SocketEvents = {
     CHANNEL_DELETED: 'channel_deleted',
     CHANNEL_UNARCHIVED: 'channel_restored',
     CHANNEL_UPDATED: 'channel_updated',
+    CHANNEL_BOOKMARK_CREATED: 'channel_bookmark_created',
+    CHANNEL_BOOKMARK_DELETED: 'channel_bookmark_deleted',
+    CHANNEL_BOOKMARK_UPDATED: 'channel_bookmark_updated',
+    CHANNEL_BOOKMARK_SORTED: 'channel_bookmark_sorted',
     MULTIPLE_CHANNELS_VIEWED: 'multiple_channels_viewed',
     CHANNEL_MEMBER_UPDATED: 'channel_member_updated',
     CHANNEL_SCHEME_UPDATED: 'channel_scheme_updated',

webapp/channels/src/utils/emoji_utils.tsx

@@ -179,6 +179,10 @@ export function getSkin(emoji: Emoji) {
     return null;
 }
 
+export function trimmedEmojiName(emojiName: string) {
+    return emojiName.startsWith(':') && emojiName.endsWith(':') ? emojiName.slice(1, -1) : emojiName;
+}
+
 export function emojiMatchesSkin(emoji: Emoji, skin: string) {
     const emojiSkin = getSkin(emoji);
     return !emojiSkin || emojiSkin === skin;

webapp/channels/src/utils/file_utils.tsx

@@ -17,8 +17,8 @@ export const FileSizes = {
 };
 
 export function canUploadFiles(config: Partial<ClientConfig>): boolean {
-    const enableFileAttachments = config.EnableFileAttachments === 'true';
-    const enableMobileFileUpload = config.EnableMobileFileUpload === 'true';
+    const enableFileAttachments = isFileAttachmentsEnabled(config);
+    const enableMobileFileUpload = isMobileFileUploadsEnabled(config);
 
     if (!enableFileAttachments) {
         return false;
@@ -35,6 +35,14 @@ export function isFileAttachmentsEnabled(config: Partial<ClientConfig>): boolean
     return config.EnableFileAttachments === 'true';
 }
 
+export function isMobileFileUploadsEnabled(config: Partial<ClientConfig>): boolean {
+    return config.EnableMobileFileUpload === 'true';
+}
+
+export function isPublicLinksEnabled(config: Partial<ClientConfig>): boolean {
+    return config.EnablePublicLink === 'true';
+}
+
 export function canDownloadFiles(config: Partial<ClientConfig>): boolean {
     if (UserAgent.isMobileApp()) {
         return config.EnableMobileFileDownload === 'true';

webapp/channels/src/utils/markdown/renderer.tsx

@@ -273,7 +273,7 @@ export default class Renderer extends marked.Renderer {
 
 // Marked helper functions that should probably just be exported
 
-function unescapeHtmlEntities(html: string) {
+export function unescapeHtmlEntities(html: string) {
     return html.replace(/&([#\w]+);/g, (_, m) => {
         const n = m.toLowerCase();
         if (n === 'colon') {

webapp/channels/src/utils/url.tsx

@@ -10,6 +10,8 @@ import Constants from 'utils/constants';
 import {latinise} from 'utils/latinise';
 import * as TextFormatting from 'utils/text_formatting';
 
+import {unescapeHtmlEntities} from './markdown/renderer';
+
 type WindowObject = {
     location: {
         origin: string;
@@ -274,6 +276,11 @@ export function isPermalinkURL(url: string): boolean {
     return isInternalURL(url, siteURL) && (regexp.test(url));
 }
 
+export function isValidUrl(url = '') {
+    const regex = /^https?:\/\//i;
+    return regex.test(url);
+}
+
 export function isStringContainingUrl(text: string): boolean {
     const regex = new RegExp('(https?://|www.)');
     return regex.test(text);
@@ -326,3 +333,20 @@ export function channelNameToUrl(channelName: string): UrlValidationCheck {
 
     return {url, error: false};
 }
+
+export function parseLink(href: string) {
+    let outHref = href;
+
+    if (!href.startsWith('/')) {
+        const scheme = getScheme(href);
+        if (!scheme) {
+            outHref = `http://${outHref}`;
+        }
+    }
+
+    if (!isUrlSafe(unescapeHtmlEntities(href))) {
+        return undefined;
+    }
+
+    return outHref;
+}

webapp/platform/client/src/client4.ts

@@ -10,6 +10,7 @@ import type {AppBinding, AppCallRequest, AppCallResponse} from '@mattermost/type
 import type {Audit} from '@mattermost/types/audits';
 import type {UserAutocomplete, AutocompleteSuggestion} from '@mattermost/types/autocomplete';
 import type {Bot, BotPatch} from '@mattermost/types/bots';
+import type {ChannelBookmark, ChannelBookmarkCreate, ChannelBookmarkPatch} from '@mattermost/types/channel_bookmarks';
 import type {ChannelCategory, OrderedChannelCategories} from '@mattermost/types/channel_categories';
 import type {
     Channel,
@@ -314,6 +315,12 @@ export default class Client4 {
     getChannelSchemeRoute(channelId: string) {
         return `${this.getChannelRoute(channelId)}/scheme`;
     }
+    getChannelBookmarksRoute(channelId: string) {
+        return `${this.getChannelRoute(channelId)}/bookmarks`;
+    }
+    getChannelBookmarkRoute(channelId: string, bookmarkId: string) {
+        return `${this.getChannelRoute(channelId)}/bookmarks/${bookmarkId}`;
+    }
 
     getChannelCategoriesRoute(userId: string, teamId: string) {
         return `${this.getBaseRoute()}/users/${userId}/teams/${teamId}/channels/categories`;
@@ -1605,7 +1612,15 @@ export default class Client4 {
         includeDeleted: boolean | undefined,
         excludePolicyConstrained: boolean | undefined
     ): Promise<ChannelsWithTotalCount>;
-    getAllChannels(page = 0, perPage = PER_PAGE_DEFAULT, notAssociatedToGroup = '', excludeDefaultChannels = false, includeTotalCount = false, includeDeleted = false, excludePolicyConstrained = false) {
+    getAllChannels(
+        page = 0,
+        perPage = PER_PAGE_DEFAULT,
+        notAssociatedToGroup = '',
+        excludeDefaultChannels = false,
+        includeTotalCount = false,
+        includeDeleted = false,
+        excludePolicyConstrained = false,
+    ) {
         const queryData = {
             page,
             per_page: perPage,
@@ -1961,7 +1976,44 @@ export default class Client4 {
         );
     };
 
-    // Channel Category Routes
+    // Channel Bookmark Routes
+
+    getChannelBookmarks = (channelId: string, bookmarksSince?: number) => {
+        return this.doFetch<ChannelBookmark[]>(
+            `${this.getChannelBookmarksRoute(channelId)}${buildQueryString({bookmarks_since: bookmarksSince})}`,
+            {method: 'get'},
+        );
+    };
+
+    createChannelBookmark = (channelId: string, channelBookmark: ChannelBookmarkCreate, connectionId: string) => {
+        return this.doFetch<ChannelBookmark>(
+            `${this.getChannelBookmarksRoute(channelId)}`,
+            {method: 'post', body: JSON.stringify(channelBookmark), headers: {'Connection-Id': connectionId}},
+        );
+    };
+
+    deleteChannelBookmark = (channelId: string, channelBookmarkId: string, connectionId: string) => {
+        return this.doFetch<ChannelBookmark>(
+            `${this.getChannelBookmarkRoute(channelId, channelBookmarkId)}`,
+            {method: 'delete', headers: {'Connection-Id': connectionId}},
+        );
+    };
+
+    updateChannelBookmark = (channelId: string, channelBookmarkId: string, patch: ChannelBookmarkPatch, connectionId: string) => {
+        return this.doFetch<{updated: ChannelBookmark; deleted: ChannelBookmark}>(
+            `${this.getChannelBookmarkRoute(channelId, channelBookmarkId)}`,
+            {method: 'PATCH', body: JSON.stringify(patch), headers: {'Connection-Id': connectionId}},
+        );
+    };
+
+    updateChannelBookmarkSortOrder = (channelId: string, channelBookmarkId: string, newOrder: number, connectionId: string) => {
+        return this.doFetch<ChannelBookmark[]>(
+            `${this.getChannelBookmarksRoute(channelId)}/${channelBookmarkId}/sort_order`,
+            {method: 'post', body: JSON.stringify(newOrder), headers: {'Connection-Id': connectionId}},
+        );
+    };
+
+    //  Channel Category Routes
 
     getChannelCategories = (userId: string, teamId: string) => {
         return this.doFetch<OrderedChannelCategories>(
@@ -2383,7 +2435,7 @@ export default class Client4 {
         return url;
     }
 
-    uploadFile = (fileFormData: any) => {
+    uploadFile = (fileFormData: any, isBookmark?: boolean) => {
         this.trackEvent('api', 'api_files_upload');
         const request: any = {
             method: 'post',
@@ -2391,7 +2443,7 @@ export default class Client4 {
         };
 
         return this.doFetch<FileUploadResponse>(
-            `${this.getFilesRoute()}`,
+            `${this.getFilesRoute()}${buildQueryString({bookmark: isBookmark})}`,
             request,
         );
     };

webapp/platform/types/src/channel_bookmarks.ts

@@ -0,0 +1,57 @@
+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import type {Channel} from './channels';
+import type {FileInfo} from './files';
+import type {IDMappedObjects} from './utilities';
+
+type ChannelBookmarkType = 'link' | 'file';
+
+export type ChannelBookmark = {
+    id: string;
+    create_at: number;
+    update_at: number;
+    delete_at: number;
+    channel_id: string;
+    owner_id: string;
+    file_id?: string;
+    file?: FileInfo;
+    display_name: string;
+    sort_order: number;
+    link_url?: string;
+    image_url?: string;
+    emoji?: string;
+    type: ChannelBookmarkType;
+    original_id?: string;
+    parent_id?: string;
+}
+
+export type ChannelBookmarkCreate = {
+    display_name: string;
+    image_url?: string;
+    emoji?: string;
+    type: ChannelBookmarkType;
+} & ({
+    type: 'link';
+    link_url: string;
+} | {
+    type: 'file';
+    file_id: string;
+})
+
+export type ChannelBookmarkPatch = {
+    file_id?: string;
+    display_name?: string;
+    sort_order?: number;
+    link_url?: string;
+    image_url?: string;
+    emoji?: string;
+}
+
+export type ChannelBookmarkWithFileInfo = ChannelBookmark & {
+    file: FileInfo;
+}
+
+export type ChannelBookmarksState = {
+    byChannelId: {[channelId: Channel['id']]: IDMappedObjects<ChannelBookmark>};
+}

webapp/platform/types/src/client4.ts

@@ -20,6 +20,7 @@ export type Options = {
     url?: string;
     credentials?: 'omit' | 'same-origin' | 'include';
     body?: any;
+    signal?: RequestInit['signal'];
     ignoreStatus?: boolean; /** If true, status codes > 300 are ignored and don't cause an error */
 };
 

webapp/platform/types/src/store.ts

@@ -4,6 +4,7 @@
 import type {AdminState} from './admin';
 import type {AppsState} from './apps';
 import type {Bot} from './bots';
+import type {ChannelBookmarksState} from './channel_bookmarks';
 import type {ChannelCategoriesState} from './channel_categories';
 import type {ChannelsState} from './channels';
 import type {CloudState, CloudUsage} from './cloud';
@@ -38,6 +39,7 @@ export type GlobalState = {
         limits: LimitsState;
         teams: TeamsState;
         channels: ChannelsState;
+        channelBookmarks: ChannelBookmarksState;
         posts: PostsState;
         threads: ThreadsState;
         bots: {