92 lines
2.9 KiB
JavaScript
92 lines
2.9 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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* Listeners for the DevTools theme.
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*/
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var DevToolsTheme = {
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_devtoolsThemePrefName: "devtools.theme",
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styleSheet: null,
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initialized: false,
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get isStyleSheetEnabled() {
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return this.styleSheet && !this.styleSheet.sheet.disabled;
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},
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init: function () {
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this.initialized = true;
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Services.prefs.addObserver(this._devtoolsThemePrefName, this, false);
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Services.obs.addObserver(this, "lightweight-theme-styling-update", false);
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Services.obs.addObserver(this, "lightweight-theme-window-updated", false);
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this._updateDevtoolsThemeAttribute();
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},
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observe: function (subject, topic, data) {
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if (topic == "lightweight-theme-styling-update") {
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let newTheme = JSON.parse(data);
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this._toggleStyleSheet();
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}
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if (topic == "nsPref:changed" && data == this._devtoolsThemePrefName) {
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this._updateDevtoolsThemeAttribute();
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}
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},
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_inferBrightness: function() {
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ToolbarIconColor.inferFromText();
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// Get an inverted full screen button if the dark theme is applied.
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if (this.isStyleSheetEnabled &&
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document.documentElement.getAttribute("devtoolstheme") == "dark") {
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document.documentElement.setAttribute("brighttitlebarforeground", "true");
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} else {
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document.documentElement.removeAttribute("brighttitlebarforeground");
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}
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},
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_updateDevtoolsThemeAttribute: function() {
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// Set an attribute on root element to make it possible
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// to change colors based on the selected devtools theme.
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let devtoolsTheme = Services.prefs.getCharPref(this._devtoolsThemePrefName);
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if (devtoolsTheme != "dark") {
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devtoolsTheme = "light";
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}
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document.documentElement.setAttribute("devtoolstheme", devtoolsTheme);
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this._inferBrightness();
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},
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handleEvent: function(e) {
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if (e.type === "load") {
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this.styleSheet.removeEventListener("load", this);
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this.refreshBrowserDisplay();
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}
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},
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refreshBrowserDisplay: function() {
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// Don't touch things on the browser if gBrowserInit.onLoad hasn't
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// yet fired.
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if (this.initialized) {
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gBrowser.tabContainer._positionPinnedTabs();
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this._inferBrightness();
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}
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},
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_toggleStyleSheet: function() {
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let wasEnabled = this.isStyleSheetEnabled;
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if (wasEnabled) {
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this.styleSheet.sheet.disabled = true;
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this.refreshBrowserDisplay();
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}
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},
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uninit: function () {
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Services.prefs.removeObserver(this._devtoolsThemePrefName, this);
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Services.obs.removeObserver(this, "lightweight-theme-styling-update", false);
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Services.obs.removeObserver(this, "lightweight-theme-window-updated", false);
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if (this.styleSheet) {
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this.styleSheet.removeEventListener("load", this);
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}
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this.styleSheet = null;
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}
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};
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