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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const { Ci } = require('chrome');
const system = require('sdk/system/events');
const { frames } = require('sdk/remote/child');
const { WorkerChild } = require('sdk/content/worker-child');
// map observer topics to tab event names
const EVENTS = {
'content-document-global-created': 'create',
'chrome-document-global-created': 'create',
'content-document-interactive': 'ready',
'chrome-document-interactive': 'ready',
'content-document-loaded': 'load',
'chrome-document-loaded': 'load',
// 'content-page-shown': 'pageshow', // bug 1024105
}
function topicListener({ subject, type }) {
// NOTE detect the window from the subject:
// - on *-global-created the subject is the window
// - in the other cases it is the document object
let window = subject instanceof Ci.nsIDOMWindow ? subject : subject.defaultView;
if (!window){
return;
}
let frame = frames.getFrameForWindow(window);
if (frame) {
let readyState = frame.content.document.readyState;
frame.port.emit('sdk/tab/event', EVENTS[type], { readyState });
}
}
for (let topic in EVENTS)
system.on(topic, topicListener, true);
// bug 1024105 - content-page-shown notification doesn't pass persisted param
function eventListener({target, type, persisted}) {
let frame = this;
if (target === frame.content.document) {
frame.port.emit('sdk/tab/event', type, persisted);
}
}
frames.addEventListener('pageshow', eventListener, true);
frames.port.on('sdk/tab/attach', (frame, options) => {
options.window = frame.content;
new WorkerChild(options);
});
// Forward the existent frames's readyState.
for (let frame of frames) {
let readyState = frame.content.document.readyState;
frame.port.emit('sdk/tab/event', 'init', { readyState });
}
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