RetroZilla/extensions/editor/cascades/resources/content/EdCssProps-utils.js

167 lines
5.3 KiB
JavaScript
Raw Normal View History

2015-10-21 05:03:22 +02:00
/* ***** 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 CaScadeS, a stylesheet editor for Composer.
*
* The Initial Developer of the Original Code is
* Daniel Glazman.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Original author: Daniel Glazman <daniel@glazman.org>
*
* 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 ***** */
// * retrieves the index of the selected entry in a tree
// param XULElement tree
// return integer
function getSelectedItem(tree)
{
if (tree.view.selection.count == 1)
return tree.contentView.getItemAtIndex(tree.currentIndex);
else
return null;
}
// * retrieves the importance of the index-nth style declaration in a rule
// param DOMCSSRule styleRule
// param integer index
// return String
function GetDeclarationImportance(styleRule, index)
{
var pName = styleRule.style.item(index);
return styleRule.style.getPropertyPriority(pName);
}
// * selects a entry in the tree
// param XULElement aItem
function selectTreeItem(aItem)
{
/* first make sure item's containers are open */
if (!aItem) return;
var tmp = aItem.parentNode;
while (tmp && tmp.nodeName != "tree") {
if (tmp.nodeName == "treeitem")
tmp.setAttribute("open", "true");
tmp = tmp.parentNode;
}
/* then select the item */
var itemIndex = gDialog.sheetsTree.contentView.getIndexOfItem(aItem);
gDialog.sheetsTree.view.selection.select(itemIndex);
/* and make sure it is visible in the clipping area of the tree */
gDialog.sheetsTree.treeBoxObject.ensureRowIsVisible(itemIndex);
}
// * gets a rule's index in its DOMCSSRuleList container
// param DOMCSSRuleList rulelist
// param DOMCSSRule rule
// return integer
function getRuleIndexInRulesList(rulelist, rule)
{
if (!rule || !rulelist)
return -1;
var i;
for (i=0; i<rulelist.length; i++) {
if (rulelist.item(i) == rule) {
return i;
}
}
return -1;
}
// * opens a file picker and returns a file: URL. If openOnly is true,
// the filepicker's mode is "open"; it is "save" instead and that allows
// to pick new filenames
// param boolean openOnly
function getLocalFileURL(openOnly)
{
var fp = Components.classes["@mozilla.org/filepicker;1"].createInstance(nsIFilePicker);
var fileType = "*";
if (openOnly)
fp.init(window, "Select a CSS file", nsIFilePicker.modeOpen);
else
fp.init(window, "Select a CSS file", nsIFilePicker.modeSave);
// Default or last filter is "All Files"
fp.appendFilters(nsIFilePicker.filterAll);
// set the file picker's current directory to last-opened location saved in prefs
SetFilePickerDirectory(fp, fileType);
/* doesn't handle *.shtml files */
try {
var ret = fp.show();
if (ret == nsIFilePicker.returnCancel)
return null;
}
catch (ex) {
dump("filePicker.chooseInputFile threw an exception\n");
return null;
}
// SaveFilePickerDirectory(fp, fileType);
return fp.file ? getURLSpecFromFile(fp.file) : null;
}
// blatantly stolen from Venkman
function getURLSpecFromFile (file)
{
if (!file)
return null;
const IOS_CTRID = "@mozilla.org/network/io-service;1";
const LOCALFILE_CTRID = "@mozilla.org/file/local;1";
const nsIIOService = Components.interfaces.nsIIOService;
const nsILocalFile = Components.interfaces.nsILocalFile;
const nsIFileProtocolHandler = Components.interfaces.nsIFileProtocolHandler;
if (typeof file == "string")
{
var fileObj =
Components.classes[LOCALFILE_CTRID].createInstance(nsILocalFile);
fileObj.initWithPath(file);
file = fileObj;
}
var service = Components.classes[IOS_CTRID].getService(nsIIOService);
var fileHandler = service.getProtocolHandler("file")
.QueryInterface(nsIFileProtocolHandler);
return fileHandler.getURLSpecFromFile(file);
}
// * Debug only...
function doDump(text, value) {
dump("===> " + text + " : " + value + "\n");
}
function ClearTreeSelection(tree) {
if (tree)
tree.view.selection.clearSelection();
}