gecko-dev/toolkit/mozapps/preferences/fontbuilder.js

121 lines
4.7 KiB
JavaScript

# -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is Mozilla.org Code.
#
# The Initial Developer of the Original Code is
# Doron Rosenberg.
# Portions created by the Initial Developer are Copyright (C) 2001
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
var FontBuilder = {
_enumerator: null,
get enumerator ()
{
if (!this._enumerator) {
this._enumerator = Components.classes["@mozilla.org/gfx/fontenumerator;1"]
.createInstance(Components.interfaces.nsIFontEnumerator);
}
return this._enumerator;
},
_allFonts: null,
buildFontList: function (aLanguage, aFontType, aMenuList)
{
// Reset the list
while (aMenuList.hasChildNodes())
aMenuList.removeChild(aMenuList.firstChild);
var defaultFont = null;
// Load Font Lists
var fonts = this.enumerator.EnumerateFonts(aLanguage, aFontType, { } );
if (fonts.length > 0)
defaultFont = this.enumerator.getDefaultFont(aLanguage, aFontType);
else {
fonts = this.enumerator.EnumerateFonts(aLanguage, "", { });
if (fonts.length > 0)
defaultFont = this.enumerator.getDefaultFont(aLanguage, "");
}
if (!this._allFonts)
this._allFonts = this.enumerator.EnumerateAllFonts({});
// Build the UI for the Default Font and Fonts for this CSS type.
var popup = document.createElement("menupopup");
var separator;
if (fonts.length > 0) {
if (defaultFont) {
var bundlePreferences = document.getElementById("bundlePreferences");
var label = bundlePreferences.getFormattedString("labelDefaultFont", [defaultFont]);
var menuitem = document.createElement("menuitem");
menuitem.setAttribute("label", label);
menuitem.setAttribute("value", ""); // Default Font has a blank value
popup.appendChild(menuitem);
separator = document.createElement("menuseparator");
popup.appendChild(separator);
}
for (var i = 0; i < fonts.length; ++i) {
menuitem = document.createElement("menuitem");
menuitem.setAttribute("value", fonts[i]);
menuitem.setAttribute("label", fonts[i]);
popup.appendChild(menuitem);
}
}
// Build the UI for the remaining fonts.
if (this._allFonts.length > fonts.length) {
// 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.
var builtItem = separator ? separator.nextSibling : popup.firstChild;
var builtItemValue = builtItem ? builtItem.getAttribute("value") : null;
separator = document.createElement("menuseparator");
popup.appendChild(separator);
for (i = 0; i < this._allFonts.length; ++i) {
if (this._allFonts[i] != builtItemValue) {
menuitem = document.createElement("menuitem");
menuitem.setAttribute("value", this._allFonts[i]);
menuitem.setAttribute("label", this._allFonts[i]);
popup.appendChild(menuitem);
}
else {
builtItem = builtItem.nextSibling;
builtItemValue = builtItem ? builtItem.getAttribute("value") : null;
}
}
}
aMenuList.appendChild(popup);
}
};