forked from mirrors/gecko-dev
9c55da7d77
This patch adds a new ContentSearchHandoffUI class to be used when search handoff is enabled in the newtab page, avoiding the much more complex ContentSearchUI. This also reduces the amount of unnecessary information being sent across processes. Differential Revision: https://phabricator.services.mozilla.com/D48776 --HG-- extra : moz-landing-system : lando
79 lines
1.9 KiB
JavaScript
79 lines
1.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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function ContentSearchHandoffUIController() {
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this._isPrivateWindow = false;
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this._engineIcon = null;
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window.addEventListener("ContentSearchService", this);
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this._sendMsg("GetEngine");
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}
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ContentSearchHandoffUIController.prototype = {
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handleEvent(event) {
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let methodName = "_onMsg" + event.detail.type;
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if (methodName in this) {
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this[methodName](event.detail.data);
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}
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},
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_onMsgEngine({ isPrivateWindow, engine }) {
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this._isPrivateWindow = isPrivateWindow;
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this._updateEngineIcon(engine);
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},
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_onMsgCurrentEngine(engine) {
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if (!this._isPrivateWindow) {
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this._updateEngineIcon(engine);
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}
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},
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_onMsgCurrentPrivateEngine(engine) {
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if (this._isPrivateWindow) {
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this._updateEngineIcon(engine);
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}
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},
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_updateEngineIcon(engine) {
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if (this._engineIcon) {
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URL.revokeObjectURL(this._engineIcon);
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}
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if (engine.iconData) {
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this._engineIcon = this._getFaviconURIFromIconData(engine.iconData);
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} else {
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this._engineIcon = "chrome://mozapps/skin/places/defaultFavicon.svg";
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}
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document.body.style.setProperty(
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"--newtab-search-icon",
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"url(" + this._engineIcon + ")"
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);
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},
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// If the favicon is an array buffer, convert it into a Blob URI.
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// Otherwise just return the plain URI.
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_getFaviconURIFromIconData(data) {
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if (typeof data === "string") {
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return data;
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}
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// If typeof(data) != "string", we assume it's an ArrayBuffer
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let blob = new Blob([data]);
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return URL.createObjectURL(blob);
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},
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_sendMsg(type, data = null) {
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dispatchEvent(
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new CustomEvent("ContentSearchClient", {
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detail: {
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type,
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data,
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},
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})
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);
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},
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};
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