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fix warning on older firefox versions

This commit is contained in:
gorhill 2017-04-01 12:13:29 -04:00
parent e4973e738b
commit 66635c44c6
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GPG Key ID: 25E1490B761470C2
1 changed files with 7 additions and 5 deletions
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12
platform/firefox/bootstrap.js vendored
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@ -31,6 +31,8 @@ const {classes: Cc, interfaces: Ci} = Components;
// Accessing the context of the background page:
// var win = Services.appShell.hiddenDOMWindow.document.querySelector('iframe[src*=ublock0]').contentWindow;
let windowlessBrowser = null;
let windowlessBrowserPL = null;
let bgProcess = null;
let version;
const hostName = 'ublock0';
@ -86,9 +88,6 @@ function createBgProcess(parentDocument) {
);
}
let windowlessBrowser;
let windowlessBrowserPL;
function getWindowlessBrowserFrame(appShell) {
windowlessBrowser = appShell.createWindowlessBrowser(true);
windowlessBrowser.QueryInterface(Ci.nsIInterfaceRequestor);
@ -98,7 +97,7 @@ function getWindowlessBrowserFrame(appShell) {
QueryInterface: XPCOMUtils.generateQI([
Ci.nsIWebProgressListener, Ci.nsIWebProgressListener2,
Ci.nsISupportsWeakReference]),
onStateChange(wbp, request, stateFlags, status) {
onStateChange(wbp, request, stateFlags/*, status*/) {
if ( !request ) {
return;
}
@ -189,7 +188,10 @@ function shutdown(data, reason) {
}
if ( windowlessBrowser !== null ) {
windowlessBrowser.close();
// close() does not exist for older versions of Firefox.
if ( typeof windowlessBrowser.close === 'function' ) {
windowlessBrowser.close();
}
windowlessBrowser = null;
windowlessBrowserPL = null;
}