pjs/suite/common/pref/pref-fonts.js

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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
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Gervase Markham <gerv@gerv.net>
* Tuukka Tolvanen <tt@lament.cjb.net>
* Stefan Borggraefe <Stefan.Borggraefe@gmx.de>
*
* Alternatively, the contents of this file may be used under the terms of
* either of 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 fontEnumerator = null;
var globalFonts = null;
var fontTypes = ["serif", "sans-serif", "cursive", "fantasy", "monospace"];
var defaultFont, variableSize, fixedSize, minSize, languageList;
var languageData = [];
var currentLanguage;
var gPrefutilitiesBundle;
// manual data retrieval function for PrefWindow
function GetFields()
{
var dataObject = parent.hPrefWindow.wsm.dataManager.pageData["chrome://communicator/content/pref/pref-fonts.xul"];
// store data for language independent widgets
if( !( "dataEls" in dataObject ) )
dataObject.dataEls = [];
dataObject.dataEls[ "selectLangs" ] = [];
dataObject.dataEls[ "selectLangs" ].value = document.getElementById( "selectLangs" ).value;
dataObject.useDocFonts = document.getElementById( "browserUseDocumentFonts" ).checked ? 1 : 0;
// save current state for language dependent fields and store
saveState();
dataObject.languageData = languageData;
return dataObject;
}
// manual data setting function for PrefWindow
function SetFields( aDataObject )
{
languageData = "languageData" in aDataObject ? aDataObject.languageData : languageData ;
currentLanguage = "currentLanguage" in aDataObject ? aDataObject.currentLanguage : null ;
var element = document.getElementById( "selectLangs" );
if( "dataEls" in aDataObject )
{
element.selectedItem = element.getElementsByAttribute( "value", aDataObject.dataEls[ "selectLangs" ].value )[0];
}
else
{
var prefstring = element.getAttribute( "prefstring" );
var preftype = element.getAttribute( "preftype" );
if( prefstring && preftype )
{
var prefvalue = parent.hPrefWindow.getPref( preftype, prefstring );
element.selectedItem = element.getElementsByAttribute( "value", prefvalue )[0];
}
}
var useDocFontsCheckbox = document.getElementById( "browserUseDocumentFonts" );
if( "useDocFonts" in aDataObject && aDataObject.useDocFonts != undefined )
useDocFontsCheckbox.checked = aDataObject.useDocFonts ? true : false;
else
{
prefvalue = parent.hPrefWindow.getPref( "int", "browser.display.use_document_fonts" );
if( prefvalue != "!/!ERROR_UNDEFINED_PREF!/!" )
useDocFontsCheckbox.checked = prefvalue ? true : false ;
}
if ( parent.hPrefWindow.getPrefIsLocked( "browser.display.use_document_fonts" ) ) {
useDocFontsCheckbox.disabled = true;
}
}
function Startup()
{
defaultFont = document.getElementById( "proportionalFont" );
variableSize = document.getElementById( "sizeVar" );
fixedSize = document.getElementById( "sizeMono" );
minSize = document.getElementById( "minSize" );
languageList = document.getElementById( "selectLangs" );
gPrefutilitiesBundle = document.getElementById("bundle_prefutilities");
// register our ok callback function
parent.hPrefWindow.registerOKCallbackFunc( saveFontPrefs );
// eventually we should detect the default language and select it by default
selectLanguage();
// This prefstring is a contrived pref whose sole purpose is to lock some
// elements in this panel. The value of the pref is not used and does not matter.
if ( parent.hPrefWindow.getPrefIsLocked( "browser.display.languageList" ) ) {
disableAllFontElements();
}
}
function getFontEnumerator()
{
if (!fontEnumerator)
{
fontEnumerator = Components.classes["@mozilla.org/gfx/fontenumerator;1"]
.createInstance()
.QueryInterface(Components.interfaces.nsIFontEnumerator);
}
return fontEnumerator;
}
function listElement( aListID )
{
this.listElement = document.getElementById( aListID );
}
listElement.prototype =
{
clearList:
function ()
{
// remove the menupopup node child of the menulist.
this.listElement.removeChild( this.listElement.firstChild );
},
appendFontNames:
function ( aLanguage, aFontType )
{
var i;
var defaultFont = null;
var count = { value: 0 };
var fonts = getFontEnumerator().EnumerateFonts( aLanguage, aFontType, count );
if (fonts.length > 0)
{
defaultFont = getFontEnumerator().getDefaultFont( aLanguage, aFontType );
}
else
{
// if no specific fonts, relax 'aFontType' and try to get other
// fonts for this language so that we can group them on top
fonts = getFontEnumerator().EnumerateFonts( aLanguage, "", count );
if (fonts.length > 0)
{
defaultFont = getFontEnumerator().getDefaultFont( aLanguage, "" );
}
}
var itemNode = null;
var separatorNode = null;
var popupNode = document.createElement( "menupopup" );
if (fonts.length > 0)
{
// always put the default font at the front of the list
if (defaultFont)
{
var label = gPrefutilitiesBundle
.getString("labelDefaultFont")
.replace(/%font_family%/, defaultFont);
itemNode = document.createElement( "menuitem" );
itemNode.setAttribute( "label", label );
itemNode.setAttribute( "value", "" ); // special blank value
popupNode.appendChild( itemNode );
separatorNode = document.createElement( "menuseparator" );
popupNode.appendChild( separatorNode );
}
for (i = 0; i < fonts.length; i++)
{
itemNode = document.createElement( "menuitem" );
itemNode.setAttribute( "value", fonts[i] );
itemNode.setAttribute( "label", fonts[i] );
popupNode.appendChild( itemNode );
}
}
// get all the fonts to complete the font lists
if (!globalFonts)
{
globalFonts = getFontEnumerator().EnumerateAllFonts( count );
}
// since the lists are sorted, we can get unique entries by just walking
// both lists linearly side-by-side, skipping those values already in
// the popup list
if (globalFonts.length > fonts.length)
{
var menuItem = separatorNode ? separatorNode.nextSibling : popupNode.firstChild;
var menuValue = menuItem ? menuItem.getAttribute( "value" ) : null;
separatorNode = document.createElement( "menuseparator" );
popupNode.appendChild( separatorNode );
for (i = 0; i < globalFonts.length; i++)
{
if (globalFonts[i] != menuValue)
{
itemNode = document.createElement( "menuitem" );
itemNode.setAttribute( "value", globalFonts[i] );
itemNode.setAttribute( "label", globalFonts[i] );
popupNode.appendChild( itemNode );
}
else
{
menuItem = menuItem.nextSibling;
menuValue = menuItem ? menuItem.getAttribute( "value" ) : null;
}
}
}
this.listElement.appendChild( popupNode );
return popupNode.firstChild;
}
};
function lazyAppendFontNames( i )
{
// schedule the build of the next font list
if (i+1 < fontTypes.length)
{
window.setTimeout(lazyAppendFontNames, 100, i+1);
}
// now build and populate the fonts for the requested font type
var defaultItem;
var selectElement = new listElement( fontTypes[i] );
selectElement.clearList();
try
{
defaultItem = selectElement.appendFontNames( languageList.value, fontTypes[i] );
}
catch(e) {
dump("pref-fonts.js: " + e + "\nFailed to build the font list for " + fontTypes[i] + "\n");
return;
}
// now set the selected font item for the drop down list
if (!defaultItem)
return; // nothing to select, so no need to bother
// the item returned by default is our last resort fall-back
var selectedItem = defaultItem;
var dataEls;
if( languageList.value in languageData )
{
// data exists for this language, pre-select items based on this information
var dataVal = languageData[languageList.value].types[fontTypes[i]];
if (dataVal.length) // else: special blank means the default
dataEls = selectElement.listElement.getElementsByAttribute("value", dataVal);
}
else
{
try
{
var fontPrefString = "font.name." + fontTypes[i] + "." + languageList.value;
var selectVal = parent.hPrefWindow.pref.getComplexValue( fontPrefString, Components.interfaces.nsISupportsString ).data;
dataEls = selectElement.listElement.getElementsByAttribute("value", selectVal);
// we need to honor name-list in case name is unavailable
if (!dataEls.item(0)) {
var fontListPrefString = "font.name-list." + fontTypes[i] + "." + languageList.value;
var nameList = parent.hPrefWindow.pref.getComplexValue( fontListPrefString, Components.interfaces.nsISupportsString ).data;
var fontNames = nameList.split(",");
for (j = 0; j < fontNames.length; j++) {
selectVal = fontNames[j].replace(/^\s+|\s+$/, "");
dataEls = selectElement.listElement.getElementsByAttribute("value", selectVal);
if (dataEls.item(0))
break; // exit loop if we find one
}
}
}
catch(e) {
}
}
if (dataEls && dataEls.item(0))
selectedItem = dataEls[0];
selectElement.listElement.selectedItem = selectedItem;
selectElement.listElement.removeAttribute( "disabled" );
}
function saveFontPrefs()
{
// saving font prefs
var dataObject = parent.hPrefWindow.wsm.dataManager.pageData["chrome://communicator/content/pref/pref-fonts.xul"];
var pref = parent.hPrefWindow.pref;
for( var language in dataObject.languageData )
{
for( var type in dataObject.languageData[language].types )
{
var fontPrefString = "font.name." + type + "." + language;
var currValue = "";
try
{
currValue = pref.getComplexValue( fontPrefString, Components.interfaces.nsISupportsString ).data;
}
catch(e)
{
}
var dataValue = dataObject.languageData[language].types[type];
if( currValue != dataValue )
{
if (dataValue)
{
parent.hPrefWindow.setPref( "string", fontPrefString, dataValue );
}
else
{
// A font name can't be blank. The special blank means the default.
// Unset the pref entirely, letting Gfx to decide. GfxXft will use what
// Xft says, whereas GfxWin and others will use the built-in settings
// that are shipped for font.name and font.name-list.
try
{
// ClearUserPref throws an exception...
pref.clearUserPref( fontPrefString );
}
catch(e)
{
}
}
}
}
var defaultFontPref = "font.default." + language;
var variableSizePref = "font.size.variable." + language;
var fixedSizePref = "font.size.fixed." + language;
var minSizePref = "font.minimum-size." + language;
var currDefaultFont = "serif", currVariableSize = 12, currFixedSize = 12, minSizeVal = 0;
try
{
currDefaultFont = parent.hPrefWindow.getPref( "string", defaultFontPref );
currVariableSize = pref.getIntPref( variableSizePref );
currFixedSize = pref.getIntPref( fixedSizePref );
minSizeVal = pref.getIntPref( minSizePref );
}
catch(e)
{
}
if( currDefaultFont != dataObject.languageData[language].defaultFont )
parent.hPrefWindow.setPref( "string", defaultFontPref, dataObject.languageData[language].defaultFont );
if( currVariableSize != dataObject.languageData[language].variableSize )
pref.setIntPref( variableSizePref, dataObject.languageData[language].variableSize );
if( currFixedSize != dataObject.languageData[language].fixedSize )
pref.setIntPref( fixedSizePref, dataObject.languageData[language].fixedSize );
if( minSizeVal != dataObject.languageData[language].minSize ) {
pref.setIntPref ( minSizePref, dataObject.languageData[language].minSize );
}
}
// font scaling
var documentFonts = dataObject.useDocFonts;
var defaultFont = dataObject.defaultFont;
try
{
var currFonts = pref.getIntPref( "browser.display.use_document_fonts" );
}
catch(e)
{
}
if( currFonts != documentFonts )
pref.setIntPref( "browser.display.use_document_fonts", documentFonts );
}
function saveState()
{
for( var i = 0; i < fontTypes.length; i++ )
{
// preliminary initialisation
if( currentLanguage && !( currentLanguage in languageData ) )
languageData[currentLanguage] = [];
if( currentLanguage && !( "types" in languageData[currentLanguage] ) )
languageData[currentLanguage].types = [];
// save data for the previous language
if( currentLanguage && currentLanguage in languageData &&
"types" in languageData[currentLanguage] )
languageData[currentLanguage].types[fontTypes[i]] = document.getElementById( fontTypes[i] ).value;
}
if( currentLanguage && currentLanguage in languageData &&
"types" in languageData[currentLanguage] )
{
languageData[currentLanguage].defaultFont = defaultFont.value;
languageData[currentLanguage].variableSize = parseInt( variableSize.value );
languageData[currentLanguage].fixedSize = parseInt( fixedSize.value );
languageData[currentLanguage].minSize = parseInt( minSize.value );
}
}
// Selects size (or the nearest entry that exists in the list)
// in the menulist minSize
function minSizeSelect(size)
{
var items = minSize.getElementsByAttribute( "value", size );
if (items.item(0))
minSize.selectedItem = items[0];
else if (size < 6)
minSizeSelect(6);
else if (size > 24)
minSizeSelect(24);
else
minSizeSelect(size - 1);
}
function selectLanguage()
{
// save current state
saveState();
if( !currentLanguage )
currentLanguage = languageList.value;
else if( currentLanguage == languageList.value )
return; // same as before, nothing changed
// lazily populate the successive font lists at 100ms intervals.
// (Note: the third parameter to setTimeout() is going to be
// passed as argument to the callback function.)
window.setTimeout(lazyAppendFontNames, 100, 0);
// in the meantime, disable the menu lists
for( var i = 0; i < fontTypes.length; i++ )
{
var listElement = document.getElementById( fontTypes[i] );
listElement.setAttribute( "value", "" );
listElement.setAttribute( "label", "" );
listElement.setAttribute( "disabled", "true" );
}
// and set the default font type and the font sizes
try
{
defaultFont.value = parent.hPrefWindow.getPref("string", "font.default." + languageList.value);
var variableSizePref = "font.size.variable." + languageList.value;
var sizeVarVal = parent.hPrefWindow.pref.getIntPref( variableSizePref );
variableSize.selectedItem = variableSize.getElementsByAttribute( "value", sizeVarVal )[0];
var fixedSizePref = "font.size.fixed." + languageList.value;
var sizeFixedVal = parent.hPrefWindow.pref.getIntPref( fixedSizePref );
fixedSize.selectedItem = fixedSize.getElementsByAttribute( "value", sizeFixedVal )[0];
}
catch(e) { } // font size lists can simply default to the first entry
var minSizeVal = 0;
try
{
var minSizePref = "font.minimum-size." + languageList.value;
minSizeVal = parent.hPrefWindow.pref.getIntPref( minSizePref );
}
catch(e) { }
minSizeSelect( minSizeVal );
currentLanguage = languageList.value;
}
// disable font items, but not the browserUseDocumentFonts checkbox
function disableAllFontElements()
{
var doc_ids = [ "selectLangs", "proportionalFont",
"sizeVar", "serif", "sans-serif",
"cursive", "fantasy", "monospace",
"sizeMono", "minSize" ];
for (i=0; i<doc_ids.length; i++) {
element = document.getElementById( doc_ids[i] );
element.disabled = true;
}
}