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Merge branch 'fix-hiddenwindow-usage' of https://github.com/gijsk/uBlock

This commit is contained in:
gorhill 2017-04-01 11:01:11 -04:00
commit b9e4a00c7a
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@ -61,6 +61,60 @@ function startup(data/*, reason*/) {
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
);
}
let windowlessBrowser;
let windowlessBrowserPL;
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 isReady = function() {
var hiddenDoc;
@ -75,23 +129,7 @@ function startup(data/*, reason*/) {
if ( !hiddenDoc || hiddenDoc.readyState !== 'complete' ) {
return false;
}
bgProcess = hiddenDoc.documentElement.appendChild(
hiddenDoc.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
);
createBgProcess(hiddenDoc);
return true;
};
@ -150,6 +188,12 @@ function shutdown(data, reason) {
bgProcess = null;
}
if ( windowlessBrowser !== null ) {
windowlessBrowser.close();
windowlessBrowser = null;
windowlessBrowserPL = null;
}
if ( data === undefined ) {
return;
}