a3c001fac3
The muted state is state that belong to the whole tab, and it would be nice if it was integrated with undo close tab and session restore.
71 lines
1.7 KiB
JavaScript
71 lines
1.7 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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this.EXPORTED_SYMBOLS = ["TabAttributes"];
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// A set of tab attributes to persist. We will read a given list of tab
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// attributes when collecting tab data and will re-set those attributes when
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// the given tab data is restored to a new tab.
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this.TabAttributes = Object.freeze({
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persist: function (name) {
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return TabAttributesInternal.persist(name);
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},
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get: function (tab) {
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return TabAttributesInternal.get(tab);
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},
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set: function (tab, data = {}) {
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TabAttributesInternal.set(tab, data);
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}
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});
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let TabAttributesInternal = {
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_attrs: new Set(["muted"]),
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// We never want to directly read or write those attributes.
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// 'image' should not be accessed directly but handled by using the
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// gBrowser.getIcon()/setIcon() methods.
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// 'pending' is used internal by sessionstore and managed accordingly.
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_skipAttrs: new Set(["image", "pending"]),
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persist: function (name) {
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if (this._attrs.has(name) || this._skipAttrs.has(name)) {
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return false;
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}
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this._attrs.add(name);
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return true;
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},
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get: function (tab) {
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let data = {};
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for (let name of this._attrs) {
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if (tab.hasAttribute(name)) {
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data[name] = tab.getAttribute(name);
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}
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}
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return data;
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},
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set: function (tab, data = {}) {
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// Clear attributes.
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for (let name of this._attrs) {
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tab.removeAttribute(name);
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}
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// Set attributes.
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for (let name in data) {
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if (!this._skipAttrs.has(name)) {
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tab.setAttribute(name, data[name]);
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}
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}
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}
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};
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