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text-link.xml (5297B)

      1 <?xml version="1.0"?>
      2 <!-- ***** BEGIN LICENSE BLOCK *****
      3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
      4  *
      5  * The contents of this file are subject to the Mozilla Public License Version
      6  * 1.1 (the "License"); you may not use this file except in compliance with
      7  * the License. You may obtain a copy of the License at
      8  * http://www.mozilla.org/MPL/
      9  *
     10  * Software distributed under the License is distributed on an "AS IS" basis,
     11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
     12  * for the specific language governing rights and limitations under the
     13  * License.
     14  *
     15  * The Original Code is Mozilla Toolkit.
     16  *
     17  * The Initial Developer of the Original Code is
     18  * the Mozilla Foundation.
     19  * Portions created by the Initial Developer are Copyright (C) 2010
     20  * the Initial Developer. All Rights Reserved.
     21  *
     22  * Alternatively, the contents of this file may be used under the terms of
     23  * either the GNU General Public License Version 2 or later (the "GPL"), or
     24  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
     25  * in which case the provisions of the GPL or the LGPL are applicable instead
     26  * of those above. If you wish to allow use of your version of this file only
     27  * under the terms of either the GPL or the LGPL, and not to allow others to
     28  * use your version of this file under the terms of the MPL, indicate your
     29  * decision by deleting the provisions above and replace them with the notice
     30  * and other provisions required by the GPL or the LGPL. If you do not delete
     31  * the provisions above, a recipient may use your version of this file under
     32  * the terms of any one of the MPL, the GPL or the LGPL.
     33  *
     34  * ***** END LICENSE BLOCK ***** -->
     35 <bindings id="textBindings"
     36    xmlns="http://www.mozilla.org/xbl"
     37    xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
     38    xmlns:html="http://www.w3.org/1999/xhtml">
     39    
     40   <binding id="text-link" extends="chrome://global/content/bindings/text.xml#text-label">
     41     <implementation implements="nsIAccessibleProvider">
     42       <property name="accessibleType" readonly="true">
     43         <getter>
     44           <![CDATA[
     45             return Components.interfaces.nsIAccessibleProvider.XULLink;
     46           ]]>
     47         </getter>
     48       </property>
     49       <property name="href" onget="return this.getAttribute('href');"
     50                             onset="this.setAttribute('href', val); return val;" />
     51       <method name="open">
     52         <parameter name="aEvent"/>
     53         <body>
     54         <![CDATA[
     55           var href = this.href;
     56           if (!href || this.disabled || aEvent.getPreventDefault())
     57             return;
     58 
     59           var uri = null;
     60           try {
     61             const nsISSM = Components.interfaces.nsIScriptSecurityManager;
     62             const secMan =
     63                      Components.classes["@mozilla.org/scriptsecuritymanager;1"]
     64                                .getService(nsISSM);
     65 
     66             const ioService =
     67                      Components.classes["@mozilla.org/network/io-service;1"]
     68                                .getService(Components.interfaces.nsIIOService);
     69 
     70             uri = ioService.newURI(href, null, null);
     71 
     72             var nullPrincipal =
     73               Components.classes["@mozilla.org/nullprincipal;1"]
     74                         .createInstance(Components.interfaces.nsIPrincipal);
     75             try {
     76               secMan.checkLoadURIWithPrincipal(nullPrincipal, uri,
     77                                                nsISSM.DISALLOW_INHERIT_PRINCIPAL)
     78             }
     79             catch (ex) {
     80               var msg = "Error: Cannot open a " + uri.scheme + ": link using \
     81                          the text-link binding.";
     82               Components.utils.reportError(msg);
     83               return;
     84             }
     85 
     86             const cID = "@mozilla.org/uriloader/external-protocol-service;1";
     87             const nsIEPS = Components.interfaces.nsIExternalProtocolService;
     88             var protocolSvc = Components.classes[cID].getService(nsIEPS);
     89 
     90             // if the scheme is not an exposed protocol, then opening this link
     91             // should be deferred to the system's external protocol handler
     92             if (!protocolSvc.isExposedProtocol(uri.scheme)
     93             	|| (window.Zotero && window.Zotero.isStandalone && ["http", "https"].indexOf(uri.scheme) !== -1)) {
     94               protocolSvc.loadUrl(uri);
     95               aEvent.preventDefault()
     96               return;
     97             }
     98 
     99           }
    100           catch (ex) {
    101             Components.utils.reportError(ex);
    102           }
    103 
    104           // otherwise, fall back to opening the anchor directly
    105           var win = window;
    106           if (window instanceof Components.interfaces.nsIDOMChromeWindow) {
    107             while (win.opener && !win.opener.closed)
    108               win = win.opener;
    109           }
    110 
    111           if (uri)
    112             win.open(uri.spec);
    113           else
    114             win.open(href);
    115 
    116           aEvent.preventDefault();
    117         ]]>
    118         </body>
    119       </method>
    120     </implementation>
    121 
    122     <handlers>
    123       <handler event="click" phase="capturing" button="0" action="this.open(event)"/>
    124       <handler event="keypress" preventdefault="true" keycode="VK_ENTER"  action="this.click()" />
    125       <handler event="keypress" preventdefault="true" keycode="VK_RETURN" action="this.click()" />
    126     </handlers>
    127   </binding>
    128 
    129 </bindings>