forked from mirrors/gecko-dev
20257bbe6d
MozReview-Commit-ID: 3jERl4H9vcv --HG-- extra : rebase_source : 833dcbb8c21a930e7b09119545ce623664237528
68 lines
1.9 KiB
JavaScript
68 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* Enables compacttheme.css when needed.
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*/
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var CompactTheme = {
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get styleSheet() {
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delete this.styleSheet;
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for (let styleSheet of document.styleSheets) {
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if (styleSheet.href == "chrome://browser/skin/compacttheme.css") {
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this.styleSheet = styleSheet;
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break;
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}
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}
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return this.styleSheet;
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},
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get isStyleSheetEnabled() {
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return this.styleSheet && !this.styleSheet.disabled;
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},
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get isThemeCurrentlyApplied() {
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let theme = LightweightThemeManager.currentThemeForDisplay;
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return theme && (
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theme.id == "firefox-compact-dark@mozilla.org" ||
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theme.id == "firefox-compact-light@mozilla.org");
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},
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init() {
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Services.obs.addObserver(this, "lightweight-theme-styling-update");
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if (this.isThemeCurrentlyApplied) {
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this._toggleStyleSheet(true);
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}
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},
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observe(subject, topic, data) {
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if (topic == "lightweight-theme-styling-update") {
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let { theme } = JSON.parse(data) || {};
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if (theme && (
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theme.id == "firefox-compact-light@mozilla.org" ||
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theme.id == "firefox-compact-dark@mozilla.org")) {
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// We are using the theme ID on this object instead of always referencing
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// LightweightThemeManager.currentTheme in case this is a preview
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this._toggleStyleSheet(true);
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} else {
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this._toggleStyleSheet(false);
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}
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}
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},
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_toggleStyleSheet(enabled) {
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let wasEnabled = this.isStyleSheetEnabled;
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if (enabled) {
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this.styleSheet.disabled = false;
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} else if (!enabled && wasEnabled) {
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this.styleSheet.disabled = true;
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}
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},
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uninit() {
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Services.obs.removeObserver(this, "lightweight-theme-styling-update");
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this.styleSheet = null;
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}
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};
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