mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-09-18 03:00:17 +02:00
590 lines
20 KiB
XML
590 lines
20 KiB
XML
<?xml version="1.0"?>
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<!-- ***** BEGIN LICENSE BLOCK *****
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- Version: MPL 1.1/GPL 2.0/LGPL 2.1
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-
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- The contents of this file are subject to the Mozilla Public License Version
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- 1.1 (the "License"); you may not use this file except in compliance with
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- the License. You may obtain a copy of the License at
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- http://www.mozilla.org/MPL/
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-
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- Software distributed under the License is distributed on an "AS IS" basis,
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- WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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- for the specific language governing rights and limitations under the
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- License.
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-
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- The Original Code is Richlistbox code.
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-
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- The Initial Developer of the Original Code is
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- IBM Corporation.
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- Portions created by the Initial Developer are Copyright (C) 2005
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- IBM Corporation. All Rights Reserved.
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-
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- Contributor(s):
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- Doron Rosenberg <doronr@us.ibm.com> (Original Author)
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-
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- Alternatively, the contents of this file may be used under the terms of
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- either the GNU General Public License Version 2 or later (the "GPL"), or
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- the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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- in which case the provisions of the GPL or the LGPL are applicable instead
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- of those above. If you wish to allow use of your version of this file only
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- under the terms of either the GPL or the LGPL, and not to allow others to
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- use your version of this file under the terms of the MPL, indicate your
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- decision by deleting the provisions above and replace them with the notice
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- and other provisions required by the GPL or the LGPL. If you do not delete
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- the provisions above, a recipient may use your version of this file under
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- the terms of any one of the MPL, the GPL or the LGPL.
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-
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- ***** END LICENSE BLOCK ***** -->
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<bindings id="richlistboxBindings"
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xmlns="http://www.mozilla.org/xbl"
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xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
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xmlns:xbl="http://www.mozilla.org/xbl">
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<binding id="richlistbox">
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<content>
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<xul:scrollbox allowevents="true" orient="vertical" anonid="main-box"
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flex="1" style="overflow: auto;">
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<children />
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</xul:scrollbox>
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</content>
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<resources>
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<stylesheet src="chrome://global/skin/richlistbox.css"/>
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</resources>
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<implementation implements="nsIAccessibleProvider, nsIDOMXULSelectControlElement">
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<field name="scrollBoxObject">null</field>
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<constructor>
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<![CDATA[
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var x = document.getAnonymousElementByAttribute(this, "anonid", "main-box");
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this.scrollBoxObject = x.boxObject.QueryInterface(Components.interfaces.nsIScrollBoxObject);
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// add a template build listener
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if (this.builder)
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this.builder.addListener(this._builderListener);
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else
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this._refreshSelection();
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]]>
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</constructor>
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<destructor>
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<![CDATA[
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// remove the template build listener
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if (this.builder)
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this.builder.removeListener(this._builderListener);
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this._selectedItem = null;
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]]>
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</destructor>
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<property name="accessible">
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<getter>
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<![CDATA[
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var accService = Components.classes["@mozilla.org/accessibilityService;1"].getService(Components.interfaces.nsIAccessibilityService);
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return accService.createXULListboxAccessible(this);
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]]>
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</getter>
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</property>
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<property name="children">
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<getter>
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<![CDATA[
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var childNodes = [];
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for (var i = 0; i < this.childNodes.length; ++i) {
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if (this.childNodes[i] instanceof Components.interfaces.nsIDOMXULSelectControlItemElement)
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childNodes.push(this.childNodes[i]);
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}
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return childNodes;
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]]>
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</getter>
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</property>
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<field name="_builderListener">
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<![CDATA[
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({
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mOuter: this,
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item: null,
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willRebuild : function(builder) {},
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didRebuild : function(builder) {
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this.mOuter._refreshSelection();
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}
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});
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]]>
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</field>
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<method name="_refreshSelection">
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<body>
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<![CDATA[
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// when this method is called, we know that either the selectedItem
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// we have is null (ctor) or a reference to an element no longer in
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// the DOM (template).
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// fist look for a last-selected attribute
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var lastSelected = this.getAttribute("last-selected");
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if (lastSelected != "") {
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var element = document.getElementById(lastSelected);
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if (element) {
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this.selectedItem = element;
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if (!this._isItemVisible(this.selectedItem))
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this.scrollBoxObject.scrollToElement(this.selectedItem);
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return;
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}
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}
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// cache the selected index
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var selectedIndex = this._selectedIndex;
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// refreshes selection. Called for example when a template rebuild
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// happens.
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if (this.selectedItem) {
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if (this.selectedItem.hasAttribute("id")) {
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var id = this.selectedItem.getAttribute("id");
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var item = document.getElementById(id);
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// if we find no item, clear selection so that the code at the bottom
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// takes over
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if (item) {
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this.selectedItem = item;
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} else {
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this.clearSelection();
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}
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} else {
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// if no id, we clear selection so that the below code will select
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// based on the current index
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this.clearSelection();
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}
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}
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// if we have no previously selected item or the above if check fails to
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// find the previous node (which causes it to clear selection)
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if (!this.selectedItem) {
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// if the selectedIndex is larger than the row count, select the last
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// item.
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if (selectedIndex >= this.getRowCount())
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this.selectedIndex = this.getRowCount() - 1;
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else
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this.selectedIndex = selectedIndex;
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// XXX: downloadmanager needs the following line, else we scroll to
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// the middle on inital load.
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this.ensureSelectedElementIsVisible();
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}
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]]>
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</body>
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</method>
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<method name="fireActiveItemEvent">
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<body>
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<![CDATA[
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if (this.selectedItem) {
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var event = document.createEvent("Events");
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event.initEvent("DOMMenuItemActive", true, true);
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this.selectedItem.dispatchEvent(event);
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}
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return false;
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]]>
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</body>
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</method>
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<field name="_selectedIndex">0</field>
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<property name="selectedIndex">
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<getter>
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<![CDATA[
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return this.getIndexOf(this.selectedItem);
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]]>
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</getter>
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<setter>
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<![CDATA[
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if (val == -1) {
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// clear selection
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this.clearSelection();
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} else if (val >= 0) {
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// only set if we get an item returned
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var item = this.getItemAtIndex(val);
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if (item)
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this.selectedItem = item;
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}
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]]>
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</setter>
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</property>
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<field name="_selectedItem">null</field>
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<property name="selectedItem">
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<getter>
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return this._selectedItem;
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</getter>
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<setter>
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<![CDATA[
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if (this._selectedItem == val)
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return;
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this._setItemSelection(val);
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if (val)
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this.fireActiveItemEvent();
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this._fireOnSelect();
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]]>
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</setter>
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</property>
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<!-- sets selection but doesn't cause any events -->
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<method name="_setItemSelection">
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<parameter name="aItem"/>
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<body>
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<![CDATA[
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// unselect current item
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if (this._selectedItem)
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this._selectedItem.selected = false
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this._selectedItem = aItem;
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this._selectedIndex = this.getIndexOf(aItem);
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this.ensureSelectedElementIsVisible();
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if (aItem) {
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aItem.selected = true;
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aItem.focus();
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}
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]]>
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</body>
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</method>
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<method name="clearSelection">
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<body>
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<![CDATA[
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this.selectedItem = null;
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]]>
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</body>
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</method>
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<method name="getRowCount">
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<body>
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<![CDATA[
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return this.children.length;
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]]>
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</body>
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</method>
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<method name="goUp">
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<body>
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<![CDATA[
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// if nothing selected, we go from the bottom
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for (var i = this.selectedItem ? this.selectedItem.previousSibling : this.lastChild; i; i = i.previousSibling) {
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// could have a template element, which would be a sibling
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if (i instanceof Components.interfaces.nsIDOMXULSelectControlItemElement) {
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this.selectedItem = i;
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return true;
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}
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}
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return false;
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]]>
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</body>
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</method>
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<method name="goDown">
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<body>
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<![CDATA[
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// if nothing selected, we go from the top
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for (var i = this.selectedItem ? this.selectedItem.nextSibling : this.firstChild; i; i = i.nextSibling) {
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// could have a template element, which would be a sibling
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if (i instanceof Components.interfaces.nsIDOMXULSelectControlItemElement) {
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this.selectedItem = i;
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return true;
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}
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}
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return false;
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]]>
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</body>
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</method>
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<method name="_isItemVisible">
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<parameter name="aItem"/>
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<body>
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<![CDATA[
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if (!aItem)
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return false;
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var y = {};
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this.scrollBoxObject.getPosition({}, y);
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y.value += this.scrollBoxObject.y;
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// Partially visible items are also considered visible
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return (aItem.boxObject.y + aItem.boxObject.height > y.value) &&
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(aItem.boxObject.y < y.value + this.scrollBoxObject.height);
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]]>
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</body>
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</method>
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<method name="scrollOnePage">
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<parameter name="aDirection"/> <!-- Must be -1 or 1 -->
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<body>
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<![CDATA[
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var children = this.children;
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if (children.length == 0)
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return false;
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var index = children.indexOf(this.selectedItem);
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// If nothing is selected, we just select the first element
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// at the extreme we're moving away from
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if (index == -1) {
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index = aDirection == -1 ? children.length - 1 : 0;
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this.selectedItem = children[index];
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return true;
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}
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// If the selected item is visible, we scroll by one page so that
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// the newly selected item is at approximately the same position as
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// the currently selected one
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var currentItem = children[index];
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if (this._isItemVisible(currentItem))
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this.scrollBoxObject.scrollBy(0, this.scrollBoxObject.height * aDirection);
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// Figure out, how many items fully fit into the view port
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// (including the currently selected one), and determine
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// the index of the first one lying (partially) outside
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var height = this.scrollBoxObject.height;
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var border = currentItem.boxObject.y;
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if (aDirection == -1)
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border += currentItem.boxObject.height;
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while (index >= 0 && index < children.length) {
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var border2 = children[index].boxObject.y;
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if (aDirection == -1)
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border2 += children[index].boxObject.height;
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if ((border2 - border) * aDirection > height)
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break;
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index += aDirection;
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}
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index -= aDirection;
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if (this.selectedItem != children[index]) {
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this.selectedItem = children[index];
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return true;
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}
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// Move by at least one item if the view port is too small
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if (aDirection == -1)
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return this.goUp();
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return this.goDown();
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]]>
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</body>
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</method>
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<method name="getItemAtIndex">
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<parameter name="aIndex"/>
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<body>
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<![CDATA[
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return this.children[aIndex];
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]]>
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</body>
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</method>
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<method name="getIndexOf">
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<parameter name="aElement"/>
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<body>
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<![CDATA[
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// don't search the children, if we're looking for none of them
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if (aElement == null)
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return -1;
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return this.children.indexOf(aElement);
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]]>
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</body>
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</method>
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<method name="ensureElementIsVisible">
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<parameter name="aElement"/>
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<body>
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<![CDATA[
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if (aElement)
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this.scrollBoxObject.ensureElementIsVisible(aElement);
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]]>
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</body>
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</method>
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<method name="ensureSelectedElementIsVisible">
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<body>
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<![CDATA[
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if (this.selectedItem) {
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this.ensureElementIsVisible(this.selectedItem);
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}
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]]>
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</body>
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</method>
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<property name="suppressOnSelect">
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<getter>
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<![CDATA[
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return this.getAttribute("suppressonselect") == "true";
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]]>
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</getter>
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</property>
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<method name="_fireOnSelect">
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<body>
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<![CDATA[
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if (this.selectedItem)
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this.setAttribute("last-selected", this.selectedItem.getAttribute("id"));
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else
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this.removeAttribute("last-selected");
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if (!this.suppressOnSelect) {
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var event = document.createEvent("Events");
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event.initEvent("select", true, true);
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this.dispatchEvent(event);
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// if we have controllers, notify the command dispatcher
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if (this.controllers.getControllerCount() > 0)
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document.commandDispatcher.updateCommands("richlistbox-select");
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}
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]]>
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</body>
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</method>
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</implementation>
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<handlers>
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<handler event="keypress" keycode="VK_UP" action="goUp(); event.preventDefault();"/>
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<handler event="keypress" keycode="VK_DOWN" action="goDown(); event.preventDefault();"/>
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<handler event="keypress" keycode="VK_PAGE_UP" action="scrollOnePage(-1); event.preventDefault();"/>
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<handler event="keypress" keycode="VK_PAGE_DOWN" action="scrollOnePage(1); event.preventDefault();"/>
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<handler event="keypress" keycode="VK_HOME" action="clearSelection(); goDown(); event.preventDefault();"/>
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<handler event="keypress" keycode="VK_END" action="clearSelection(); goUp(); event.preventDefault();"/>
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<handler event="click">
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<![CDATA[
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// clicking into nothing should unselect
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if (event.originalTarget.getAttribute("anonid") == "main-box")
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this.clearSelection();
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]]>
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</handler>
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<handler event="contextmenu">
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<![CDATA[
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// if the context menu was opened via the keyboard, display it in the
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// right location.
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if (event.button != 2) {
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var popup = document.getElementById(this.getAttribute("context"));
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if (popup)
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popup.showPopup(this.selectedItem, -1, -1, "context", "bottomleft", "topleft");
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}
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]]>
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</handler>
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<handler event="focus">
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<![CDATA[
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if (event.target == this)
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this.fireActiveItemEvent();
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]]>
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</handler>
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</handlers>
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</binding>
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<binding id="richlistitem"
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extends="chrome://global/content/bindings/general.xml#basecontrol">
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<content>
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<children />
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</content>
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<resources>
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<stylesheet src="chrome://global/skin/richlistbox.css"/>
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</resources>
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<implementation implements="nsIAccessibleProvider, nsIDOMXULSelectControlItemElement">
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<destructor>
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<![CDATA[
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// When we are destructed and we are selected, unselect ourselves so
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// that richlistbox's selection doesn't point to something not in the DOM.
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// We don't want to reset last-selected, so we don't call clearSelection().
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if (this.selected) {
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this.control._setItemSelection(null);
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}
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]]>
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</destructor>
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<!-- ///////////////// nsIAccessibleProvider ///////////////// -->
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<property name="accessible">
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<getter>
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<![CDATA[
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var accService = Components.classes["@mozilla.org/accessibilityService;1"].getService(Components.interfaces.nsIAccessibilityService);
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return accService.createXULListitemAccessible(this);
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]]>
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</getter>
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</property>
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<!-- ///////////////// nsIDOMXULSelectControlItemElement ///////////////// -->
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<property name="value" onget="return this.getAttribute('value');"
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onset="this.setAttribute('value', val); return val;"/>
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<property name="label">
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<!-- Setter purposely not implemented; the getter returns a
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concatentation of label text to expose via accessibility APIs-->
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<getter>
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|
<![CDATA[
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var labelText = "";
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var startEl = document.getAnonymousNodes(this)[0];
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if (startEl) {
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var labels =
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startEl.getElementsByTagNameNS('http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul',
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'label');
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var numLabels = labels.length;
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for (count = 0; count < numLabels; count ++) {
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if (labels[count].className != 'text-link') {
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labelText += labels[count].value + ' ';
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}
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}
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}
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return labelText;
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]]>
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</getter>
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</property>
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<property name="selected"
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onget="return this.getAttribute('selected') == 'true';"
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onset="return this.setAttribute('selected',val);"/>
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|
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<property name="control">
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<getter>
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|
<![CDATA[
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|
var parent = this.parentNode;
|
|
while (parent) {
|
|
if (parent instanceof Components.interfaces.nsIDOMXULSelectControlElement)
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|
return parent;
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parent = parent.parentNode;
|
|
}
|
|
return null;
|
|
]]>
|
|
</getter>
|
|
</property>
|
|
</implementation>
|
|
|
|
<handlers>
|
|
<handler event="click">
|
|
<![CDATA[
|
|
var listbox = this.control;
|
|
if ((event.target == this) && event.ctrlKey && (listbox.selectedItem == this)) {
|
|
listbox.clearSelection();
|
|
} else {
|
|
listbox.selectedItem = this;
|
|
}
|
|
]]>
|
|
</handler>
|
|
<handler event="contextmenu" phase="capturing">
|
|
<![CDATA[
|
|
// This needed to be called before the contextmenu gets shown to handle
|
|
// someone rightclicking on an unselected item
|
|
if (event.target == this) {
|
|
var listbox = this.control;
|
|
if (listbox) {
|
|
listbox.selectedItem = this;
|
|
}
|
|
}
|
|
]]>
|
|
</handler>
|
|
</handlers>
|
|
</binding>
|
|
</bindings>
|
|
|