Remove presence management

The feature is incredibly buggy and doesn't work as expected due to server behaviour and client interaction. One of the major problems is the constantly confused presence state - this is caused by the mobile apps conflicting on the state of the web app, causing it to consider the user offline or online (and rarely away) depending on how riot-android/ios is behaving at the time.

This reverts two PRs:
* #1620
* #1482

The changes to the context menu positioning were not reverted as they are useful outside of presence management.

Signed-off-by: Travis Ralston <travpc@gmail.com>

src/MatrixClientPeg.js

@@ -98,7 +98,6 @@ class MatrixClientPeg {
         const opts = utils.deepCopy(this.opts);
         // the react sdk doesn't work without this, so don't allow
         opts.pendingEventOrdering = "detached";
-        opts.disablePresence = true; // we do this manually
 
         try {
             const promise = this.matrixClient.store.startup();

src/Presence.js

@@ -57,27 +57,13 @@ class Presence {
         return this.state;
     }
 
-    /**
-     * Get the current status message.
-     * @returns {String} the status message, may be null
-     */
-    getStatusMessage() {
-        return this.statusMessage;
-    }
-
     /**
      * Set the presence state.
      * If the state has changed, the Home Server will be notified.
      * @param {string} newState the new presence state (see PRESENCE enum)
-     * @param {String} statusMessage an optional status message for the presence
-     * @param {boolean} maintain true to have this status maintained by this tracker
      */
-    setState(newState, statusMessage=null, maintain=false) {
-        if (this.maintain) {
-            // Don't update presence if we're maintaining a particular status
-            return;
-        }
-        if (newState === this.state && statusMessage === this.statusMessage) {
+    setState(newState) {
+        if (newState === this.state) {
             return;
         }
         if (PRESENCE_STATES.indexOf(newState) === -1) {
@@ -87,37 +73,21 @@ class Presence {
             return;
         }
         const old_state = this.state;
-        const old_message = this.statusMessage;
         this.state = newState;
-        this.statusMessage = statusMessage;
-        this.maintain = maintain;
 
         if (MatrixClientPeg.get().isGuest()) {
             return; // don't try to set presence when a guest; it won't work.
         }
 
-        const updateContent = {
-            presence: this.state,
-            status_msg: this.statusMessage ? this.statusMessage : '',
-        };
-
         const self = this;
-        MatrixClientPeg.get().setPresence(updateContent).done(function() {
+        MatrixClientPeg.get().setPresence(this.state).done(function() {
             console.log("Presence: %s", newState);
-
-            // We have to dispatch because the js-sdk is unreliable at telling us about our own presence
-            dis.dispatch({action: "self_presence_updated", statusInfo: updateContent});
         }, function(err) {
             console.error("Failed to set presence: %s", err);
             self.state = old_state;
-            self.statusMessage = old_message;
         });
     }
 
-    stopMaintainingStatus() {
-        this.maintain = false;
-    }
-
     /**
      * Callback called when the user made no action on the page for UNAVAILABLE_TIME ms.
      * @private

src/components/views/rooms/MessageComposer.js

@@ -251,15 +251,15 @@ export default class MessageComposer extends React.Component {
     render() {
         const me = this.props.room.getMember(MatrixClientPeg.get().credentials.userId);
         const uploadInputStyle = {display: 'none'};
-        const MemberPresenceAvatar = sdk.getComponent('avatars.MemberPresenceAvatar');
+        const MemberAvatar = sdk.getComponent('avatars.MemberAvatar');
         const TintableSvg = sdk.getComponent("elements.TintableSvg");
         const MessageComposerInput = sdk.getComponent("rooms.MessageComposerInput");
 
         const controls = [];
 
         controls.push(
             <div key="controls_avatar" className="mx_MessageComposer_avatar">
-                <MemberPresenceAvatar member={me} width={24} height={24} />
+                <MemberAvatar member={me} width={24} height={24} />
             </div>,
         );
 

src/i18n/strings/en_EN.json

@@ -170,6 +170,7 @@
     "%(widgetName)s widget modified by %(senderName)s": "%(widgetName)s widget modified by %(senderName)s",
     "%(widgetName)s widget added by %(senderName)s": "%(widgetName)s widget added by %(senderName)s",
     "%(widgetName)s widget removed by %(senderName)s": "%(widgetName)s widget removed by %(senderName)s",
+    "Message Pinning": "Message Pinning",
     "%(displayName)s is typing": "%(displayName)s is typing",
     "%(names)s and %(count)s others are typing|other": "%(names)s and %(count)s others are typing",
     "%(names)s and %(count)s others are typing|one": "%(names)s and one other is typing",