Add text-link binding (almost entirely verbatim from moz-central)

This commit is contained in:
Simon Kornblith 2011-08-25 06:16:42 +00:00
parent 59d7050bba
commit beefefd016

View file

@ -0,0 +1,129 @@
<?xml version="1.0"?>
<!-- ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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* 1.1 (the "License"); you may not use this file except in compliance with
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*
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
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* The Original Code is Mozilla Toolkit.
*
* The Initial Developer of the Original Code is
* the Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* 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
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<bindings id="textBindings"
xmlns="http://www.mozilla.org/xbl"
xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
xmlns:html="http://www.w3.org/1999/xhtml">
<binding id="text-link" extends="chrome://global/content/bindings/text.xml#text-label">
<implementation implements="nsIAccessibleProvider">
<property name="accessibleType" readonly="true">
<getter>
<![CDATA[
return Components.interfaces.nsIAccessibleProvider.XULLink;
]]>
</getter>
</property>
<property name="href" onget="return this.getAttribute('href');"
onset="this.setAttribute('href', val); return val;" />
<method name="open">
<parameter name="aEvent"/>
<body>
<![CDATA[
var href = this.href;
if (!href || this.disabled || aEvent.getPreventDefault())
return;
var uri = null;
try {
const nsISSM = Components.interfaces.nsIScriptSecurityManager;
const secMan =
Components.classes["@mozilla.org/scriptsecuritymanager;1"]
.getService(nsISSM);
const ioService =
Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
uri = ioService.newURI(href, null, null);
var nullPrincipal =
Components.classes["@mozilla.org/nullprincipal;1"]
.createInstance(Components.interfaces.nsIPrincipal);
try {
secMan.checkLoadURIWithPrincipal(nullPrincipal, uri,
nsISSM.DISALLOW_INHERIT_PRINCIPAL)
}
catch (ex) {
var msg = "Error: Cannot open a " + uri.scheme + ": link using \
the text-link binding.";
Components.utils.reportError(msg);
return;
}
const cID = "@mozilla.org/uriloader/external-protocol-service;1";
const nsIEPS = Components.interfaces.nsIExternalProtocolService;
var protocolSvc = Components.classes[cID].getService(nsIEPS);
// if the scheme is not an exposed protocol, then opening this link
// should be deferred to the system's external protocol handler
if (!protocolSvc.isExposedProtocol(uri.scheme)
|| (window.Zotero && window.Zotero.isStandalone && ["http", "https"].indexOf(uri.scheme) !== -1)) {
protocolSvc.loadUrl(uri);
aEvent.preventDefault()
return;
}
}
catch (ex) {
Components.utils.reportError(ex);
}
// otherwise, fall back to opening the anchor directly
var win = window;
if (window instanceof Components.interfaces.nsIDOMChromeWindow) {
while (win.opener && !win.opener.closed)
win = win.opener;
}
if (uri)
win.open(uri.spec);
else
win.open(href);
aEvent.preventDefault();
]]>
</body>
</method>
</implementation>
<handlers>
<handler event="click" phase="capturing" button="0" action="this.open(event)"/>
<handler event="keypress" preventdefault="true" keycode="VK_ENTER" action="this.click()" />
<handler event="keypress" preventdefault="true" keycode="VK_RETURN" action="this.click()" />
</handlers>
</binding>
</bindings>