mirror of
https://github.com/vector-im/element-ios.git
synced 2024-10-01 00:32:41 +00:00
80 lines
2.5 KiB
JavaScript
80 lines
2.5 KiB
JavaScript
/*
|
|
Copyright 2017 Vector Creations Ltd
|
|
|
|
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.
|
|
*/
|
|
|
|
window.riotIOS = {};
|
|
|
|
// Generic JS -> ObjC bridge
|
|
window.riotIOS.sendObjectMessageToObjC = function(parameters) {
|
|
var iframe = document.createElement('iframe');
|
|
iframe.setAttribute('src', 'js:' + JSON.stringify(parameters));
|
|
|
|
document.documentElement.appendChild(iframe);
|
|
iframe.parentNode.removeChild(iframe);
|
|
iframe = null;
|
|
};
|
|
|
|
window.riotIOS.events = {};
|
|
|
|
// Listen to messages posted by the widget
|
|
window.riotIOS.onMessage = function(event) {
|
|
|
|
// Use an internal "_id" field for matching onMessage events and requests
|
|
// _id was originally used by the Modular API. Keep it
|
|
if (!event.data._id) {
|
|
// The Matrix Widget API v2 spec says:
|
|
// "The requestId field should be unique and included in all requests"
|
|
event.data._id = event.data.requestId;
|
|
}
|
|
|
|
// Make sure to have one id
|
|
if (!event.data._id) {
|
|
event.data._id = Date.now() + "-" + Math.random().toString(36);
|
|
}
|
|
|
|
// Do not SPAM ObjC with event already managed
|
|
if (riotIOS.events[event.data._id]) {
|
|
return;
|
|
}
|
|
|
|
if (!event.origin) { // stupid chrome
|
|
event.origin = event.originalEvent.origin;
|
|
}
|
|
|
|
// Keep this event for future usage
|
|
riotIOS.events[event.data._id] = event;
|
|
|
|
riotIOS.sendObjectMessageToObjC({
|
|
'event.data': event.data,
|
|
});
|
|
};
|
|
window.addEventListener('message', riotIOS.onMessage, false);
|
|
|
|
|
|
// ObjC -> Widget JS bridge
|
|
window.riotIOS.sendResponse = function(eventId, res) {
|
|
|
|
// Retrieve the correspong JS event
|
|
var event = riotIOS.events[eventId];
|
|
|
|
console.log("sendResponse to " + event.data.action + " for "+ eventId + ": " + JSON.stringify(res));
|
|
|
|
var data = JSON.parse(JSON.stringify(event.data));
|
|
data.response = res;
|
|
event.source.postMessage(data, event.origin);
|
|
|
|
// Mark this event as handled
|
|
riotIOS.events[eventId] = true;
|
|
}
|