Refactored ViewImage modal and made it automatically play animated gifs

web/react/stores/file_store.jsx

@@ -0,0 +1,60 @@
+// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import AppDispatcher from '../dispatcher/app_dispatcher.jsx';
+import Constants from '../utils/constants.jsx';
+import EventEmitter from 'events';
+
+const ActionTypes = Constants.ActionTypes;
+
+const CHANGE_EVENT = 'changed';
+
+class FileStore extends EventEmitter {
+    constructor() {
+        super();
+
+        this.addChangeListener = this.addChangeListener.bind(this);
+        this.removeChangeListener = this.removeChangeListener.bind(this);
+        this.emitChange = this.emitChange.bind(this);
+
+        this.handleEventPayload = this.handleEventPayload.bind(this);
+        this.dispatchToken = AppDispatcher.register(this.handleEventPayload);
+
+        this.fileInfo = new Map();
+    }
+
+    addChangeListener(callback) {
+        this.on(CHANGE_EVENT, callback);
+    }
+    removeChangeListener(callback) {
+        this.removeListener(CHANGE_EVENT, callback);
+    }
+    emitChange(filename) {
+        this.emit(CHANGE_EVENT, filename);
+    }
+
+    hasInfo(filename) {
+        return this.fileInfo.has(filename);
+    }
+
+    getInfo(filename) {
+        return this.fileInfo.get(filename);
+    }
+
+    setInfo(filename, info) {
+        this.fileInfo.set(filename, info);
+    }
+
+    handleEventPayload(payload) {
+        const action = payload.action;
+
+        switch (action.type) {
+        case ActionTypes.RECIEVED_FILE_INFO:
+            this.setInfo(action.filename, action.info);
+            this.emitChange(action.filename);
+            break;
+        }
+    }
+}
+
+export default new FileStore();