gecko-dev/browser/actors/LinkHandlerParent.jsm

161 строка
3.6 KiB
JavaScript

/* 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 EXPORTED_SYMBOLS = ["LinkHandlerParent"];
const lazy = {};
ChromeUtils.defineESModuleGetters(lazy, {
PlacesUIUtils: "resource:///modules/PlacesUIUtils.sys.mjs",
});
let gTestListeners = new Set();
class LinkHandlerParent extends JSWindowActorParent {
static addListenerForTests(listener) {
gTestListeners.add(listener);
}
static removeListenerForTests(listener) {
gTestListeners.delete(listener);
}
receiveMessage(aMsg) {
let browser = this.browsingContext.top.embedderElement;
if (!browser) {
return;
}
let win = browser.ownerGlobal;
let gBrowser = win.gBrowser;
switch (aMsg.name) {
case "Link:LoadingIcon":
if (!gBrowser) {
return;
}
if (aMsg.data.canUseForTab) {
let tab = gBrowser.getTabForBrowser(browser);
if (tab.hasAttribute("busy")) {
tab.setAttribute("pendingicon", "true");
}
}
this.notifyTestListeners("LoadingIcon", aMsg.data);
break;
case "Link:SetIcon":
// Cache the most recent icon and rich icon locally.
if (aMsg.data.canUseForTab) {
this.icon = aMsg.data;
} else {
this.richIcon = aMsg.data;
}
if (!gBrowser) {
return;
}
this.setIconFromLink(gBrowser, browser, aMsg.data);
this.notifyTestListeners("SetIcon", aMsg.data);
break;
case "Link:SetFailedIcon":
if (!gBrowser) {
return;
}
if (aMsg.data.canUseForTab) {
this.clearPendingIcon(gBrowser, browser);
}
this.notifyTestListeners("SetFailedIcon", aMsg.data);
break;
case "Link:AddSearch":
if (!gBrowser) {
return;
}
let tab = gBrowser.getTabForBrowser(browser);
if (!tab) {
break;
}
if (win.BrowserSearch) {
win.BrowserSearch.addEngine(browser, aMsg.data.engine);
}
break;
}
}
notifyTestListeners(name, data) {
for (let listener of gTestListeners) {
listener(name, data);
}
}
clearPendingIcon(gBrowser, aBrowser) {
let tab = gBrowser.getTabForBrowser(aBrowser);
tab.removeAttribute("pendingicon");
}
setIconFromLink(
gBrowser,
browser,
{ pageURL, originalURL, canUseForTab, expiration, iconURL, canStoreIcon }
) {
let tab = gBrowser.getTabForBrowser(browser);
if (!tab) {
return;
}
if (canUseForTab) {
this.clearPendingIcon(gBrowser, browser);
}
let iconURI;
try {
iconURI = Services.io.newURI(iconURL);
} catch (ex) {
Cu.reportError(ex);
return;
}
if (iconURI.scheme != "data") {
try {
Services.scriptSecurityManager.checkLoadURIWithPrincipal(
browser.contentPrincipal,
iconURI,
Services.scriptSecurityManager.ALLOW_CHROME
);
} catch (ex) {
return;
}
}
if (canStoreIcon) {
try {
lazy.PlacesUIUtils.loadFavicon(
browser,
Services.scriptSecurityManager.getSystemPrincipal(),
Services.io.newURI(pageURL),
Services.io.newURI(originalURL),
expiration,
iconURI
);
} catch (ex) {
Cu.reportError(ex);
}
}
if (canUseForTab) {
gBrowser.setIcon(tab, iconURL, originalURL);
}
}
}