Backport Notifier improvements from Vector, including TextForEvent

src/TextForEvent.js

@@ -0,0 +1,106 @@
+
+function textForMemberEvent(ev) {
+    // XXX: SYJS-16
+    var senderName = ev.sender ? ev.sender.name : ev.getSender();
+    var targetName = ev.target ? ev.target.name : ev.getStateKey();
+    var reason = ev.getContent().reason ? (
+        " Reason: " + ev.getContent().reason
+    ) : "";
+    switch (ev.getContent().membership) {
+        case 'invite':
+            return senderName + " invited " + targetName + ".";
+        case 'ban':
+            return senderName + " banned " + targetName + "." + reason;
+        case 'join':
+            if (ev.getPrevContent() && ev.getPrevContent().membership == 'join') {
+                if (ev.getPrevContent().displayname && ev.getContent().displayname && ev.getPrevContent().displayname != ev.getContent().displayname) {
+                    return ev.getSender() + " changed their display name from " +
+                        ev.getPrevContent().displayname + " to " +
+                        ev.getContent().displayname;
+                } else if (!ev.getPrevContent().displayname && ev.getContent().displayname) {
+                    return ev.getSender() + " set their display name to " + ev.getContent().displayname;
+                } else if (ev.getPrevContent().displayname && !ev.getContent().displayname) {
+                    return ev.getSender() + " removed their display name";
+                } else if (ev.getPrevContent().avatar_url && !ev.getContent().avatar_url) {
+                    return ev.getSender() + " removed their profile picture";
+                } else if (ev.getPrevContent().avatar_url && ev.getContent().avatar_url && ev.getPrevContent().avatar_url != ev.getContent().avatar_url) {
+                    return ev.getSender() + " changed their profile picture";
+                } else if (!ev.getPrevContent().avatar_url && ev.getContent().avatar_url) {
+                    return ev.getSender() + " set a profile picture";
+                }
+            } else {
+                if (!ev.target) console.warn("Join message has no target! -- " + ev.getContent().state_key);
+                return targetName + " joined the room.";
+            }
+            return '';
+        case 'leave':
+            if (ev.getSender() === ev.getStateKey()) {
+                return targetName + " left the room.";
+            }
+            else if (ev.getPrevContent().membership === "ban") {
+                return senderName + " unbanned " + targetName + ".";
+            }
+            else if (ev.getPrevContent().membership === "join") {
+                return senderName + " kicked " + targetName + "." + reason;
+            }
+            else {
+                return targetName + " left the room.";
+            }
+    }
+};
+
+function textForTopicEvent(ev) {
+    var senderDisplayName = ev.sender && ev.sender.name ? ev.sender.name : ev.getSender();
+
+    return senderDisplayName + ' changed the topic to, "' + ev.getContent().topic + '"';
+};
+
+function textForMessageEvent(ev) {
+    var senderDisplayName = ev.sender && ev.sender.name ? ev.sender.name : ev.getSender();
+
+    var message = senderDisplayName + ': ' + ev.getContent().body;
+    if (ev.getContent().msgtype === "m.emote") {
+        message = "* " + senderDisplayName + " " + message;
+    } else if (ev.getContent().msgtype === "m.image") {
+        message = senderDisplayName + " sent an image.";
+    }
+    return message;
+};
+
+function textForCallAnswerEvent(event) {
+    var senderName = event.sender ? event.sender.name : "Someone";
+    return senderName + " answered the call.";
+};
+
+function textForCallHangupEvent(event) {
+    var senderName = event.sender ? event.sender.name : "Someone";
+    return senderName + " ended the call.";
+};
+
+function textForCallInviteEvent(event) {
+    var senderName = event.sender ? event.sender.name : "Someone";
+    // FIXME: Find a better way to determine this from the event?
+    var type = "voice";
+    if (event.getContent().offer && event.getContent().offer.sdp &&
+            event.getContent().offer.sdp.indexOf('m=video') !== -1) {
+        type = "video";
+    }
+    return senderName + " placed a " + type + " call.";
+};
+
+var handlers = {
+    'm.room.message': textForMessageEvent,
+    'm.room.topic': textForTopicEvent,
+    'm.room.member': textForMemberEvent,
+    'm.call.invite': textForCallInviteEvent,
+    'm.call.answer': textForCallAnswerEvent,
+    'm.call.hangup': textForCallHangupEvent,
+};
+
+module.exports = {
+    textForEvent: function(ev) {
+        var hdlr = handlers[ev.getType()];
+        if (!hdlr) return "";
+        return hdlr(ev);
+    }
+}