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-rw-r--r--toolkit/mozapps/preferences/fontbuilder.js120
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+// -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* import-globals-from ../../content/preferencesBindings.js */
+
+var FontBuilder = {
+ _enumerator: null,
+ get enumerator() {
+ if (!this._enumerator) {
+ this._enumerator = Cc["@mozilla.org/gfx/fontenumerator;1"].createInstance(
+ Ci.nsIFontEnumerator
+ );
+ }
+ return this._enumerator;
+ },
+
+ _allFonts: null,
+ _langGroupSupported: false,
+ async buildFontList(aLanguage, aFontType, aMenuList) {
+ // Remove the original <menupopup>
+ if (aMenuList.menupopup) {
+ aMenuList.menupopup.remove();
+ }
+
+ let defaultFont = null;
+ // Load Font Lists
+ let fonts = await this.enumerator.EnumerateFontsAsync(aLanguage, aFontType);
+ if (fonts.length) {
+ defaultFont = this.enumerator.getDefaultFont(aLanguage, aFontType);
+ } else {
+ fonts = await this.enumerator.EnumerateFontsAsync(aLanguage, "");
+ if (fonts.length) {
+ defaultFont = this.enumerator.getDefaultFont(aLanguage, "");
+ }
+ }
+
+ if (!this._allFonts) {
+ this._allFonts = await this.enumerator.EnumerateAllFontsAsync({});
+ }
+
+ // Build the UI for the Default Font and Fonts for this CSS type.
+ const popup = document.createXULElement("menupopup");
+ let separator;
+ if (fonts.length) {
+ let menuitem = document.createXULElement("menuitem");
+ if (defaultFont) {
+ document.l10n.setAttributes(menuitem, "fonts-label-default", {
+ name: defaultFont,
+ });
+ } else {
+ document.l10n.setAttributes(menuitem, "fonts-label-default-unnamed");
+ }
+ menuitem.setAttribute("value", ""); // Default Font has a blank value
+ popup.appendChild(menuitem);
+
+ separator = document.createXULElement("menuseparator");
+ popup.appendChild(separator);
+
+ for (let font of fonts) {
+ menuitem = document.createXULElement("menuitem");
+ menuitem.setAttribute("value", font);
+ menuitem.setAttribute("label", font);
+ popup.appendChild(menuitem);
+ }
+ }
+
+ // Build the UI for the remaining fonts.
+ if (this._allFonts.length > fonts.length) {
+ this._langGroupSupported = true;
+ // Both lists are sorted, and the Fonts-By-Type list is a subset of the
+ // All-Fonts list, so walk both lists side-by-side, skipping values we've
+ // already created menu items for.
+ let builtItem = separator ? separator.nextSibling : popup.firstChild;
+ let builtItemValue = builtItem ? builtItem.getAttribute("value") : null;
+
+ separator = document.createXULElement("menuseparator");
+ popup.appendChild(separator);
+
+ for (let font of this._allFonts) {
+ if (font != builtItemValue) {
+ const menuitem = document.createXULElement("menuitem");
+ menuitem.setAttribute("value", font);
+ menuitem.setAttribute("label", font);
+ popup.appendChild(menuitem);
+ } else {
+ builtItem = builtItem.nextSibling;
+ builtItemValue = builtItem ? builtItem.getAttribute("value") : null;
+ }
+ }
+ }
+ aMenuList.appendChild(popup);
+ },
+
+ readFontSelection(aElement) {
+ // Determine the appropriate value to select, for the following cases:
+ // - there is no setting
+ // - the font selected by the user is no longer present (e.g. deleted from
+ // fonts folder)
+ const preference = Preferences.get(aElement.getAttribute("preference"));
+ if (preference.value) {
+ const fontItems = aElement.getElementsByAttribute(
+ "value",
+ preference.value
+ );
+
+ // There is a setting that actually is in the list. Respect it.
+ if (fontItems.length) {
+ return undefined;
+ }
+ }
+
+ // Otherwise, use "default" font of current system which is computed
+ // with "font.name-list.*". If "font.name.*" is empty string, it means
+ // "default". So, return empty string in this case.
+ return "";
+ },
+};