43 lines
1.1 KiB
JavaScript
43 lines
1.1 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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// Tab attributes which are persisted & restored by SessionStore.
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const PERSISTED_ATTRIBUTES = ["customizemode"];
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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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export var TabAttributes = Object.freeze({
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get(tab) {
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return TabAttributesInternal.get(tab);
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},
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set(tab, data = {}) {
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TabAttributesInternal.set(tab, data);
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},
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});
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var TabAttributesInternal = {
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get(tab) {
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let data = {};
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for (let name of PERSISTED_ATTRIBUTES) {
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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(tab, data = {}) {
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// Clear & Set attributes.
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for (let name of PERSISTED_ATTRIBUTES) {
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tab.removeAttribute(name);
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if (name in data) {
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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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