forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			129 lines
		
	
	
	
		
			4.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			129 lines
		
	
	
	
		
			4.4 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 DevEdition theme.  This adds an extra stylesheet
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 * to browser.xul if a pref is set and no other themes are applied.
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 */
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var DevEdition = {
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  _devtoolsThemePrefName: "devtools.theme",
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  styleSheetLocation: "chrome://browser/skin/devedition.css",
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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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  get isThemeCurrentlyApplied() {
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    let theme = LightweightThemeManager.currentTheme;
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    return theme && theme.id == "firefox-devedition@mozilla.org";
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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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    this._updateDevtoolsThemeAttribute();
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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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  createStyleSheet: function() {
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    let styleSheetAttr = `href="${this.styleSheetLocation}" type="text/css"`;
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    this.styleSheet = document.createProcessingInstruction(
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      "xml-stylesheet", styleSheetAttr);
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    this.styleSheet.addEventListener("load", this);
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    document.insertBefore(this.styleSheet, document.documentElement);
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    this.styleSheet.sheet.disabled = true;
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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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      if (newTheme && newTheme.id == "firefox-devedition@mozilla.org") {
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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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    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(deveditionThemeEnabled) {
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    let wasEnabled = this.isStyleSheetEnabled;
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    if (deveditionThemeEnabled && !wasEnabled) {
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      // The stylesheet may not have been created yet if it wasn't
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      // needed on initial load.  Make it now.
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      if (!this.styleSheet) {
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        this.createStyleSheet();
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      }
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      this.styleSheet.sheet.disabled = false;
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      this.refreshBrowserDisplay();
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    } else if (!deveditionThemeEnabled && 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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    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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// If the DevEdition theme is going to be applied in gBrowserInit.onLoad,
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// then preload it now.  This prevents a flash of unstyled content where the
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// normal theme is applied while the DevEdition stylesheet is loading.
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if (!AppConstants.RELEASE_BUILD &&
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    this != Services.appShell.hiddenDOMWindow && DevEdition.isThemeCurrentlyApplied) {
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  DevEdition.createStyleSheet();
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}
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