зеркало из https://github.com/mozilla/gecko-dev.git
103 строки
3.4 KiB
JavaScript
103 строки
3.4 KiB
JavaScript
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-1999 Netscape Communications Corporation. All
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* Rights Reserved.
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*/
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/* functions for disabling front end elements when the appropriate
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back-end preference is locked. */
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var nsPrefBranch = null;
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// Prefs in mailnews require dynamic portions to indicate
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// which of multiple servers or identies. This function
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// takes a string and a xul element.
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// The string is a prefstring with a token %tokenname%.
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// The xul element has an attribute of name |tokenname|
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// whose value is substituted into the string and returned
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// by the function.
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// Any tokens which do not have associated attribute value
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// are not substituted, and left in the string as-is.
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function substPrefTokens(aStr, element)
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{
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var tokenpat = /%(\w+)%/;
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var token;
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var newprefstr = "";
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var prefPartsArray = aStr.split(".");
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/* here's a little loop that goes through
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each part of the string separated by a dot, and
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if any parts are of the form %string%, it will replace
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them with the value of the attribute of that name from
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the xul object */
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for (var i=0; i< prefPartsArray.length; i++) {
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token = prefPartsArray[i].match(tokenpat);
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if (token) { /* we've got a %% match */
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if (token[1]) {
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if (element[token[1]]) {
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newprefstr += element[token[1]] + "."; // here's where we get the info
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} else { /* all we got was this stinkin % */
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newprefstr += prefPartsArray[i] + ".";
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}
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}
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} else /* if (token) */ {
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newprefstr += prefPartsArray[i] + ".";
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}
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}
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newprefstr = newprefstr.slice(0,-1); // remove the last char, a dot
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if (newprefstr.length <=0 )
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newprefstr = null;
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return newprefstr;
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}
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// A simple function which given a xul element with
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// the pref related attributes (pref, preftype, prefstring)
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// return if the prefstring specified in that element is
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// locked (true/false).
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// If it does not have a valid prefstring, a false is returned.
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function getAccountValueIsLocked(element)
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{
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var prefstr = "";
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var preftype;
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var prefval;
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var prefstring;
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if (!nsPrefBranch) {
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var prefService = Components.classes["@mozilla.org/preferences-service;1"];
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prefService = prefService.getService();
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prefService = prefService.QueryInterface(Components.interfaces.nsIPrefService);
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nsPrefBranch = prefService.getBranch(null);
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}
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prefstring = element.getAttribute("prefstring");
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if (prefstring) {
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preftype = element.getAttribute("preftype");
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prefstr = substPrefTokens(prefstring, element);
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// see if the prefstring is locked
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if (prefstr) {
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var bLocked=nsPrefBranch.prefIsLocked(prefstr);
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return bLocked;
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}
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}
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return false;
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}
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