gorhill 8 years ago
parent
commit
89c5f02d76
  1. 133
      platform/firefox/bootstrap.js

133
platform/firefox/bootstrap.js

@ -1,7 +1,7 @@
/*******************************************************************************
µBlock - a browser extension to block requests.
Copyright (C) 2014 The µBlock authors
uMatrix - a browser extension to block requests.
Copyright (C) 2014-2017 The uMatrix/uBlock Origin authors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@ -26,10 +26,14 @@
/******************************************************************************/
const {classes: Cc, interfaces: Ci} = Components;
// Accessing the context of the background page:
// var win = Services.appShell.hiddenDOMWindow.document.querySelector('iframe[src*=umatrix]').contentWindow;
let bgProcess;
let windowlessBrowser = null;
let windowlessBrowserPL = null;
let bgProcess = null;
let version;
const hostName = 'umatrix';
const restartListener = {
@ -46,14 +50,75 @@ const restartListener = {
/******************************************************************************/
// https://github.com/gorhill/uBlock/issues/2493
// Fix by https://github.com/gijsk
// imported from https://github.com/gorhill/uBlock/pull/2497
function startup(data/*, reason*/) {
if ( data !== undefined ) {
version = data.version;
}
let appShell = Components.classes['@mozilla.org/appshell/appShellService;1']
.getService(Components.interfaces.nsIAppShellService);
// Already started?
if ( bgProcess !== null ) {
return;
}
let appShell = Cc['@mozilla.org/appshell/appShellService;1']
.getService(Ci.nsIAppShellService);
if ( appShell.createWindowlessBrowser ) {
getWindowlessBrowserFrame(appShell);
} else {
getHiddenWindowBrowserFrame(appShell);
}
}
function createBgProcess(parentDocument) {
bgProcess = parentDocument.documentElement.appendChild(
parentDocument.createElementNS('http://www.w3.org/1999/xhtml', 'iframe')
);
bgProcess.setAttribute(
'src',
'chrome://' + hostName + '/content/background.html#' + version
);
// https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/nsIMessageListenerManager#addMessageListener%28%29
// "If the same listener registers twice for the same message, the
// "second registration is ignored."
restartListener.messageManager.addMessageListener(
hostName + '-restart',
restartListener
);
}
function getWindowlessBrowserFrame(appShell) {
windowlessBrowser = appShell.createWindowlessBrowser(true);
windowlessBrowser.QueryInterface(Ci.nsIInterfaceRequestor);
let webProgress = windowlessBrowser.getInterface(Ci.nsIWebProgress);
let XPCOMUtils = Components.utils.import('resource://gre/modules/XPCOMUtils.jsm', null).XPCOMUtils;
windowlessBrowserPL = {
QueryInterface: XPCOMUtils.generateQI([
Ci.nsIWebProgressListener, Ci.nsIWebProgressListener2,
Ci.nsISupportsWeakReference]),
onStateChange(wbp, request, stateFlags, status) {
if ( !request ) {
return;
}
if ( stateFlags & Ci.nsIWebProgressListener.STATE_STOP ) {
webProgress.removeProgressListener(windowlessBrowserPL);
windowlessBrowserPL = null;
createBgProcess(windowlessBrowser.document);
}
}
};
webProgress.addProgressListener(windowlessBrowserPL, Ci.nsIWebProgress.NOTIFY_STATE_DOCUMENT);
windowlessBrowser.document.location = "data:application/vnd.mozilla.xul+xml;charset=utf-8,<window%20id='" + hostName + "-win'/>";
}
function getHiddenWindowBrowserFrame(appShell) {
let onReady = function(e) {
if ( e ) {
this.removeEventListener(e.type, onReady);
@ -70,50 +135,8 @@ function startup(data/*, reason*/) {
return;
}
bgProcess = hiddenDoc.documentElement.appendChild(
hiddenDoc.createElementNS('http://www.w3.org/1999/xhtml', 'iframe')
);
bgProcess.setAttribute(
'src',
'chrome://' + hostName + '/content/background.html#' + version
);
restartListener.messageManager.addMessageListener(
hostName + '-restart',
restartListener
);
createBgProcess(hiddenDoc);
};
var ready = false;
try {
ready = appShell.hiddenDOMWindow &&
appShell.hiddenDOMWindow.document;
} catch (ex) {
}
if ( ready ) {
onReady();
return;
}
let ww = Components.classes['@mozilla.org/embedcomp/window-watcher;1']
.getService(Components.interfaces.nsIWindowWatcher);
ww.registerNotification({
observe: function(win, topic) {
if ( topic !== 'domwindowopened' ) {
return;
}
try {
void appShell.hiddenDOMWindow;
} catch (ex) {
return;
}
ww.unregisterNotification(this);
win.addEventListener('DOMContentLoaded', onReady);
}
});
}
/******************************************************************************/
@ -123,7 +146,19 @@ function shutdown(data, reason) {
return;
}
bgProcess.parentNode.removeChild(bgProcess);
if ( bgProcess !== null ) {
bgProcess.parentNode.removeChild(bgProcess);
bgProcess = null;
}
if ( windowlessBrowser !== null ) {
// close() does not exist for older versions of Firefox.
if ( typeof windowlessBrowser.close === 'function' ) {
windowlessBrowser.close();
}
windowlessBrowser = null;
windowlessBrowserPL = null;
}
if ( data === undefined ) {
return;

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