Add resending bar (and resend all option)

Factor out resend logic which was in the context menu into a separate
Resend file (it shouldn't be in the skin, but it also isn't really
suitable for a controller given 2 different views invoke it..)

src/Resend.js

@@ -0,0 +1,24 @@
+var MatrixClientPeg = require('matrix-react-sdk/lib/MatrixClientPeg');
+var dis = require('matrix-react-sdk/lib/dispatcher');
+
+module.exports = {
+    resend: function(event) {
+        MatrixClientPeg.get().resendEvent(
+            event, MatrixClientPeg.get().getRoom(event.getRoomId())
+        ).done(function() {
+            dis.dispatch({
+                action: 'message_sent',
+                event: event
+            });
+        }, function() {
+            dis.dispatch({
+                action: 'message_send_failed',
+                event: event
+            });
+        });
+        dis.dispatch({
+            action: 'message_resend_started',
+            event: event
+        });
+    },
+};

src/controllers/organisms/RoomView.js

@@ -24,6 +24,7 @@ var Modal = require("matrix-react-sdk/lib/Modal");
 var sdk = require('matrix-react-sdk/lib/index');
 var CallHandler = require('matrix-react-sdk/lib/CallHandler');
 var VectorConferenceHandler = require('../../modules/VectorConferenceHandler');
+var Resend = require("../../Resend");
 
 var dis = require("matrix-react-sdk/lib/dispatcher");
 
@@ -32,8 +33,9 @@ var INITIAL_SIZE = 20;
 
 module.exports = {
     getInitialState: function() {
+        var room = this.props.roomId ? MatrixClientPeg.get().getRoom(this.props.roomId) : null;
         return {
-            room: this.props.roomId ? MatrixClientPeg.get().getRoom(this.props.roomId) : null,
+            room: room,
             messageCap: INITIAL_SIZE,
             editingRoomSettings: false,
             uploadingRoomSettings: false,
@@ -41,7 +43,8 @@ module.exports = {
             draggingFile: false,
             searching: false,
             searchResults: null,
-            syncState: MatrixClientPeg.get().getSyncState()
+            syncState: MatrixClientPeg.get().getSyncState(),
+            hasUnsentMessages: this._hasUnsentMessages(room)
         }
     },
 
@@ -77,6 +80,9 @@ module.exports = {
         switch (payload.action) {
             case 'message_send_failed':
             case 'message_sent':
+                this.setState({
+                    hasUnsentMessages: this._hasUnsentMessages(this.state.room)
+                });
             case 'message_resend_started':
                 this.setState({
                     room: MatrixClientPeg.get().getRoom(this.props.roomId)
@@ -182,6 +188,19 @@ module.exports = {
         this._updateConfCallNotification();
     },
 
+    _hasUnsentMessages: function(room) {
+        return this._getUnsentMessages(room).length > 0;
+    },
+
+    _getUnsentMessages: function(room) {
+        if (!room) { return []; }
+        // TODO: It would be nice if the JS SDK provided nicer constant-time
+        // constructs rather than O(N) (N=num msgs) on this.
+        return room.timeline.filter(function(ev) {
+            return ev.status === Matrix.EventStatus.NOT_SENT;
+        });
+    },
+
     _updateConfCallNotification: function() {
         var room = MatrixClientPeg.get().getRoom(this.props.roomId);
         if (!room) return;
@@ -274,6 +293,13 @@ module.exports = {
         return false;
     },
 
+    onResendAllClick: function() {
+        var eventsToResend = this._getUnsentMessages(this.state.room);
+        eventsToResend.forEach(function(event) {
+            Resend.resend(event);
+        });
+    },
+
     onJoinButtonClicked: function(ev) {
         var self = this;
         MatrixClientPeg.get().joinRoom(this.props.roomId).then(function() {

src/skins/vector/css/organisms/RoomView.css

@@ -209,6 +209,10 @@ limitations under the License.
     font-size: 12px;
 }
 
+.mx_RoomView_resend_link {
+    cursor: pointer;
+}
+
 .mx_RoomView_typingBar {
     margin-top: 10px;
     margin-left: 54px;

src/skins/vector/views/molecules/MessageContextMenu.js

@@ -22,25 +22,13 @@ var MatrixClientPeg = require('matrix-react-sdk/lib/MatrixClientPeg');
 var dis = require('matrix-react-sdk/lib/dispatcher');
 var sdk = require('matrix-react-sdk')
 var Modal = require('matrix-react-sdk/lib/Modal');
+var Resend = require("../../../../Resend");
 
 module.exports = React.createClass({
     displayName: 'MessageContextMenu',
 
     onResendClick: function() {
-        MatrixClientPeg.get().resendEvent(
-            this.props.mxEvent, MatrixClientPeg.get().getRoom(
-                this.props.mxEvent.getRoomId()
-            )
-        ).done(function() {
-            dis.dispatch({
-                action: 'message_sent'
-            });
-        }, function() {
-            dis.dispatch({
-                action: 'message_send_failed'
-            });
-        });
-        dis.dispatch({action: 'message_resend_started'});
+        Resend.resend(this.props.mxEvent);
         if (this.props.onFinished) this.props.onFinished();
     },
 

src/skins/vector/views/organisms/RoomView.js

@@ -199,6 +199,8 @@ module.exports = React.createClass({
                 var unreadMsgs = this.getUnreadMessagesString();
                 // no conn bar trumps unread count since you can't get unread messages
                 // without a connection! (technically may already have some but meh)
+                // It also trumps the "some not sent" msg since you can't resend without
+                // a connection!
                 if (this.state.syncState === "ERROR") {
                     statusBar = (
                         <div className="mx_RoomView_connectionLostBar">
@@ -214,6 +216,24 @@ module.exports = React.createClass({
                         </div>
                     );
                 }
+                else if (this.state.hasUnsentMessages) {
+                    statusBar = (
+                        <div className="mx_RoomView_connectionLostBar">
+                            <img src="img/cancel.png" width="10" height="12" alt=""/>
+                            <div className="mx_RoomView_connectionLostBar_textArea">
+                                <span className="mx_RoomView_connectionLostBar_title">
+                                Some of your messages have not been sent.
+                                </span>
+                                <div className="mx_RoomView_connectionLostBar_desc">
+                                    <span className="mx_RoomView_resend_link"
+                                        onClick={ this.onResendAllClick } >
+                                    Resend all now
+                                    </span> or select individual messages to re-send.
+                                </div>
+                            </div>
+                        </div>
+                    );
+                }
                 // unread count trumps who is typing since the unread count is only
                 // set when you've scrolled up
                 else if (unreadMsgs) {