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Added event handler service which.. handles events. More specifically, it $broadcasts events depending on their type, and does processing on events (shuffling keys, adding events to $rootScope so displays will automatically update, sending delivery receipts, and so on). Some of this logic was previously contained in the RoomController, which fails the moment you add >1 room into the mix, hence requiring a Service to handle events, rather than having each individual controller maintain their part of the world.

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This commit is contained in:
Kegan Dougal 2014-08-15 11:31:13 +01:00
parent 8bf3994c2e
commit 5dbceaf5a4
5 changed files with 124 additions and 32 deletions
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3
webclient/app.js
View file

@ -21,7 +21,8 @@ var matrixWebClient = angular.module('matrixWebClient', [
'RoomController',
'RoomsController',
'matrixService',
'eventStreamService'
'eventStreamService',
'eventHandlerService'
]);
matrixWebClient.config(['$routeProvider', '$provide', '$httpProvider',

87
webclient/components/matrix/event-handler-service.js Normal file
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@ -0,0 +1,87 @@
/*
Copyright 2014 matrix.org
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
'use strict';
/*
This service handles what should happen when you get an event. This service does
not care where the event came from, it only needs enough context to be able to
process them. Events may be coming from the event stream, the REST API (via
direct GETs or via a pagination stream API), etc.
Typically, this service will store events or broadcast them to any listeners
(e.g. controllers) via $broadcast. Alternatively, it may update the $rootScope
if typically all the $on method would do is update its own $scope.
*/
angular.module('eventHandlerService', [])
.factory('eventHandlerService', ['matrixService', '$rootScope', function(matrixService, $rootScope) {
var MSG_EVENT = "MSG_EVENT";
var MEMBER_EVENT = "MEMBER_EVENT";
var PRESENCE_EVENT = "PRESENCE_EVENT";
var handleMessage = function(event, isLiveEvent) {
if ("membership_target" in event.content) {
// event.user_id = event.content.membership_target;
}
// $broadcast this, as controllers may want to do funky things such as
// scroll to the bottom, etc which cannot be expressed via simple $scope
// updates.
console.log("Bcast " + JSON.stringify(event));
$rootScope.$broadcast(MSG_EVENT, event, isLiveEvent);
};
var handleRoomMember = function(event, isLiveEvent) {
$rootScope.$broadcast(MEMBER_EVENT, event, isLiveEvent);
};
var handlePresence = function(event, isLiveEvent) {
$rootScope.$broadcast(PRESENCE_EVENT, event, isLiveEvent);
};
return {
MSG_EVENT: MSG_EVENT,
MEMBER_EVENT: MEMBER_EVENT,
PRESENCE_EVENT: PRESENCE_EVENT,
handleEvent: function(event, isLiveEvent) {
switch(event.type) {
case "m.room.message":
handleMessage(event, isLiveEvent);
break;
case "m.room.member":
handleRoomMember(event, isLiveEvent);
break;
case "m.presence":
handlePresence(event, isLiveEvent);
break;
default:
console.log("Unable to handle event type " + event.type);
break;
}
},
// isLiveEvents determines whether notifications should be shown, whether
// messages get appended to the start/end of lists, etc.
handleEvents: function(events, isLiveEvents) {
for (var i=0; i<events.length; i++) {
this.handleEvent(events[i], isLiveEvents);
}
}
};
}]);

17
webclient/components/matrix/event-stream-service.js
View file

@ -16,8 +16,17 @@ limitations under the License.
'use strict';
/*
This service manages where in the event stream the web client currently is and
provides methods to resume/pause/stop the event stream. This service is not
responsible for parsing event data. For that, see the eventDataHandler.
*/
angular.module('eventStreamService', [])
.factory('eventStreamService', ['matrixService', function(matrixService) {
var END = "END";
var START = "START";
var TIMEOUT_MS = 5000;
var settings = {
from: "END",
to: undefined,
@ -28,7 +37,7 @@ angular.module('eventStreamService', [])
// interrupts the stream. Only valid if there is a stream conneciton
// open.
var interrupt = function(shouldPoll) {
console.log("[EventStream] interrupt("+shouldPoll+") "+
console.log("p[EventStream] interrupt("+shouldPoll+") "+
JSON.stringify(settings));
};
@ -42,7 +51,7 @@ angular.module('eventStreamService', [])
resume: function() {
console.log("[EventStream] resume "+JSON.stringify(settings));
// run the stream from the latest token
return matrixService.getEventStream(settings.from, 5000);
return matrixService.getEventStream(settings.from, TIMEOUT_MS);
},
// pause the stream. Resuming it will continue from the current position
@ -55,13 +64,13 @@ angular.module('eventStreamService', [])
},
// stop the stream and wipe the position in the stream. Typically used
// when logging out.
// when logging out / logged out.
stop: function() {
console.log("[EventStream] stop "+JSON.stringify(settings));
// kill any running stream
interrupt(false);
// clear the latest token
settings.from = "END";
settings.from = END;
saveStreamSettings();
}
};

1
webclient/index.html
View file

@ -15,6 +15,7 @@
<script src="rooms/rooms-controller.js"></script>
<script src="components/matrix/matrix-service.js"></script>
<script src="components/matrix/event-stream-service.js"></script>
<script src="components/matrix/event-handler-service.js"></script>
<script src="components/fileInput/file-input-directive.js"></script>
<script src="components/fileUpload/file-upload-service.js"></script>
</head>

42
webclient/room/room-controller.js
View file

@ -15,8 +15,8 @@ limitations under the License.
*/
angular.module('RoomController', [])
.controller('RoomController', ['$scope', '$http', '$timeout', '$routeParams', '$location', 'matrixService', 'eventStreamService',
function($scope, $http, $timeout, $routeParams, $location, matrixService, eventStreamService) {
.controller('RoomController', ['$scope', '$http', '$timeout', '$routeParams', '$location', 'matrixService', 'eventStreamService', 'eventHandlerService',
function($scope, $http, $timeout, $routeParams, $location, matrixService, eventStreamService, eventHandlerService) {
'use strict';
var MESSAGES_PER_PAGINATION = 10;
$scope.room_id = $routeParams.room_id;
@ -42,34 +42,28 @@ angular.module('RoomController', [])
},0);
};
var parseChunk = function(chunks, appendToStart) {
for (var i = 0; i < chunks.length; i++) {
var chunk = chunks[i];
if (chunk.room_id == $scope.room_id && chunk.type == "m.room.message") {
if ("membership_target" in chunk.content) {
chunk.user_id = chunk.content.membership_target;
}
if (appendToStart) {
$scope.messages.unshift(chunk);
}
else {
$scope.messages.push(chunk);
$scope.$on(eventHandlerService.MSG_EVENT, function(ngEvent, event, isLive) {
if (isLive) {
$scope.messages.push(event);
scrollToBottom();
}
else {
$scope.messages.unshift(event);
}
else if (chunk.room_id == $scope.room_id && chunk.type == "m.room.member") {
updateMemberList(chunk);
}
else if (chunk.type === "m.presence") {
updatePresence(chunk);
}
}
};
});
$scope.$on(eventHandlerService.MEMBER_EVENT, function(ngEvent, event, isLive) {
updateMemberList(event);
});
$scope.$on(eventHandlerService.PRESENCE_EVENT, function(ngEvent, event, isLive) {
updatePresence(event);
});
var paginate = function(numItems) {
matrixService.paginateBackMessages($scope.room_id, $scope.state.earliest_token, numItems).then(
function(response) {
parseChunk(response.data.chunk, true);
eventHandlerService.handleEvents(response.data.chunk, false);
$scope.state.earliest_token = response.data.end;
if (response.data.chunk.length < MESSAGES_PER_PAGINATION) {
// no more messages to paginate :(
@ -90,7 +84,7 @@ angular.module('RoomController', [])
$scope.state.events_from = response.data.end;
$scope.feedback = "";
parseChunk(response.data.chunk, false);
eventHandlerService.handleEvents(response.data.chunk, true);
if ($scope.stopPoll) {
console.log("Stopping polling.");