PLT-74: Enable Up Arrow keyboard shortcut to edit your last message

web/react/components/create_post.jsx

@@ -16,6 +16,7 @@ const Utils = require('../utils/utils.jsx');
 
 const Constants = require('../utils/constants.jsx');
 const ActionTypes = Constants.ActionTypes;
+const KeyCodes = Constants.KeyCodes;
 
 export default class CreatePost extends React.Component {
     constructor(props) {
@@ -35,6 +36,7 @@ export default class CreatePost extends React.Component {
         this.removePreview = this.removePreview.bind(this);
         this.onChange = this.onChange.bind(this);
         this.getFileCount = this.getFileCount.bind(this);
+        this.handleArrowUp = this.handleArrowUp.bind(this);
 
         PostStore.clearDraftUploads();
 
@@ -172,7 +174,7 @@ export default class CreatePost extends React.Component {
         }
     }
     postMsgKeyPress(e) {
-        if (e.which === 13 && !e.shiftKey && !e.altKey) {
+        if (e.which === KeyCodes.ENTER && !e.shiftKey && !e.altKey) {
             e.preventDefault();
             ReactDOM.findDOMNode(this.refs.textbox).blur();
             this.handleSubmit(e);
@@ -292,6 +294,24 @@ export default class CreatePost extends React.Component {
         const draft = PostStore.getDraft(channelId);
         return draft.previews.length + draft.uploadsInProgress.length;
     }
+    handleArrowUp(e) {
+        if (e.keyCode === KeyCodes.UP && this.state.messageText === '') {
+            e.preventDefault();
+
+            const channelId = ChannelStore.getCurrentId();
+            const lastPost = PostStore.getCurrentUsersLatestPost(channelId);
+            var type = (lastPost.root_id && lastPost.root_id.length > 0) ? 'Comment' : 'Post';
+
+            AppDispatcher.handleViewAction({
+                type: ActionTypes.RECIEVED_EDIT_POST,
+                refoucsId: '#post_textbox',
+                title: type,
+                message: lastPost.message,
+                lastPostId: lastPost.id,
+                channelId: lastPost.channel_id
+            });
+        }
+    }
     render() {
         let serverError = null;
         if (this.state.serverError) {
@@ -336,6 +356,7 @@ export default class CreatePost extends React.Component {
                             <Textbox
                                 onUserInput={this.handleUserInput}
                                 onKeyPress={this.postMsgKeyPress}
+                                onKeyDown={this.handleArrowUp}
                                 onHeightChange={this.resizePostHolder}
                                 messageText={this.state.messageText}
                                 createMessage='Write a message...'

web/react/components/edit_post_modal.jsx

@@ -5,6 +5,7 @@ var Client = require('../utils/client.jsx');
 var AsyncClient = require('../utils/async_client.jsx');
 var Textbox = require('./textbox.jsx');
 var BrowserStore = require('../stores/browser_store.jsx');
+var PostStore = require('../stores/post_store.jsx');
 
 export default class EditPostModal extends React.Component {
     constructor() {
@@ -14,6 +15,7 @@ export default class EditPostModal extends React.Component {
         this.handleEditInput = this.handleEditInput.bind(this);
         this.handleEditKeyPress = this.handleEditKeyPress.bind(this);
         this.handleUserInput = this.handleUserInput.bind(this);
+        this.handleEditPostEvent = this.handleEditPostEvent.bind(this);
 
         this.state = {editText: '', title: '', post_id: '', channel_id: '', comments: 0, refocusId: ''};
     }
@@ -59,6 +61,18 @@ export default class EditPostModal extends React.Component {
     handleUserInput(e) {
         this.setState({editText: e.target.value});
     }
+    handleEditPostEvent(options) {
+        this.setState({
+            editText: options.message || '',
+            title: options.title || '',
+            post_id: options.postId || '',
+            channel_id: options.channelId || '',
+            comments: options.comments || 0,
+            refocusId: options.refocusId || ''
+        });
+
+        $(React.findDOMNode(this.refs.modal)).modal('show');
+    }
     componentDidMount() {
         var self = this;
 
@@ -68,12 +82,20 @@ export default class EditPostModal extends React.Component {
 
         $(ReactDOM.findDOMNode(this.refs.modal)).on('show.bs.modal', function onShow(e) {
             var button = e.relatedTarget;
+            if (!button) {
+                return;
+            }
             self.setState({editText: $(button).attr('data-message'), title: $(button).attr('data-title'), channel_id: $(button).attr('data-channelid'), post_id: $(button).attr('data-postid'), comments: $(button).attr('data-comments'), refocusId: $(button).attr('data-refoucsid')});
         });
 
         $(ReactDOM.findDOMNode(this.refs.modal)).on('shown.bs.modal', function onShown() {
             self.refs.editbox.resize();
         });
+
+        PostStore.addEditPostListener(this.handleEditPostEvent);
+    }
+    componentWillUnmount() {
+        PostStore.removeEditPostListener(this.handleEditPostEvent);
     }
     render() {
         var error = (<div className='form-group'><br /></div>);

web/react/components/textbox.jsx

@@ -9,6 +9,7 @@ const ErrorStore = require('../stores/error_store.jsx');
 const Utils = require('../utils/utils.jsx');
 const Constants = require('../utils/constants.jsx');
 const ActionTypes = Constants.ActionTypes;
+const KeyCodes = Constants.KeyCodes;
 
 export default class Textbox extends React.Component {
     constructor(props) {
@@ -148,8 +149,10 @@ export default class Textbox extends React.Component {
             this.doProcessMentions = true;
         }
 
-        if (e.keyCode === 8) {
+        if (e.keyCode === KeyCodes.BACKSPACE) {
             this.handleBackspace(e);
+        } else if (this.props.onKeyDown) {
+            this.props.onKeyDown(e);
         }
     }
 
@@ -318,5 +321,6 @@ Textbox.propTypes = {
     onUserInput: React.PropTypes.func.isRequired,
     onKeyPress: React.PropTypes.func.isRequired,
     onHeightChange: React.PropTypes.func,
-    createMessage: React.PropTypes.string.isRequired
+    createMessage: React.PropTypes.string.isRequired,
+    onKeyDown: React.PropTypes.func
 };