133 lines
4.6 KiB
JavaScript
133 lines
4.6 KiB
JavaScript
/*
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Copyright 2014 matrix.org
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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'use strict';
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/*
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This service handles what should happen when you get an event. This service does
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not care where the event came from, it only needs enough context to be able to
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process them. Events may be coming from the event stream, the REST API (via
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direct GETs or via a pagination stream API), etc.
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Typically, this service will store events or broadcast them to any listeners
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(e.g. controllers) via $broadcast. Alternatively, it may update the $rootScope
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if typically all the $on method would do is update its own $scope.
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*/
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angular.module('eventHandlerService', [])
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.factory('eventHandlerService', ['matrixService', '$rootScope', function(matrixService, $rootScope) {
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var MSG_EVENT = "MSG_EVENT";
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var MEMBER_EVENT = "MEMBER_EVENT";
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var PRESENCE_EVENT = "PRESENCE_EVENT";
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$rootScope.events = {
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rooms: {}, // will contain roomId: { messages:[], members:{userid1: event} }
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};
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$rootScope.presence = {};
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var initRoom = function(room_id) {
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if (!(room_id in $rootScope.events.rooms)) {
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console.log("Creating new handler entry for " + room_id);
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$rootScope.events.rooms[room_id] = {};
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$rootScope.events.rooms[room_id].messages = [];
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$rootScope.events.rooms[room_id].members = {};
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}
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}
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var reInitRoom = function(room_id) {
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$rootScope.events.rooms[room_id] = {};
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$rootScope.events.rooms[room_id].messages = [];
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$rootScope.events.rooms[room_id].members = {};
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}
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var handleMessage = function(event, isLiveEvent) {
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initRoom(event.room_id);
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if (isLiveEvent) {
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$rootScope.events.rooms[event.room_id].messages.push(event);
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}
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else {
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$rootScope.events.rooms[event.room_id].messages.unshift(event);
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}
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// TODO send delivery receipt if isLiveEvent
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// $broadcast this, as controllers may want to do funky things such as
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// scroll to the bottom, etc which cannot be expressed via simple $scope
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// updates.
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$rootScope.$broadcast(MSG_EVENT, event, isLiveEvent);
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};
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var handleRoomMember = function(event, isLiveEvent) {
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initRoom(event.room_id);
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// add membership changes as if they were a room message if something interesting changed
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if (event.content.prev !== event.content.membership) {
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if (isLiveEvent) {
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$rootScope.events.rooms[event.room_id].messages.push(event);
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}
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else {
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$rootScope.events.rooms[event.room_id].messages.unshift(event);
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}
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}
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$rootScope.events.rooms[event.room_id].members[event.user_id] = event;
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$rootScope.$broadcast(MEMBER_EVENT, event, isLiveEvent);
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};
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var handlePresence = function(event, isLiveEvent) {
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$rootScope.presence[event.content.user_id] = event;
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$rootScope.$broadcast(PRESENCE_EVENT, event, isLiveEvent);
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};
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return {
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MSG_EVENT: MSG_EVENT,
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MEMBER_EVENT: MEMBER_EVENT,
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PRESENCE_EVENT: PRESENCE_EVENT,
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handleEvent: function(event, isLiveEvent) {
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switch(event.type) {
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case "m.room.message":
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handleMessage(event, isLiveEvent);
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break;
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case "m.room.member":
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handleRoomMember(event, isLiveEvent);
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break;
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case "m.presence":
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handlePresence(event, isLiveEvent);
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break;
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default:
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console.log("Unable to handle event type " + event.type);
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break;
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}
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},
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// isLiveEvents determines whether notifications should be shown, whether
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// messages get appended to the start/end of lists, etc.
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handleEvents: function(events, isLiveEvents) {
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for (var i=0; i<events.length; i++) {
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this.handleEvent(events[i], isLiveEvents);
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}
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},
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reInitRoom: function(room_id) {
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reInitRoom(room_id);
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},
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};
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}]);
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