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richlistbox.xml
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richlistbox.xml
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<?xml version="1.0"?>
<!-- This Source Code Form is subject to the terms of the Mozilla Public
- License, v. 2.0. If a copy of the MPL was not distributed with this
- file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
<!-- This file relies on these specific Chrome/XBL globals -->
<!-- globals ChromeNodeList -->
<bindings id="richlistboxBindings"
xmlns="http://www.mozilla.org/xbl"
xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
xmlns:xbl="http://www.mozilla.org/xbl">
<binding id="richlistitem"
extends="chrome://global/content/bindings/general.xml#basetext">
<implementation implements="nsIDOMXULSelectControlItemElement">
<field name="selectedByMouseOver">false</field>
<destructor>
<![CDATA[
var control = this.control;
if (!control)
return;
// When we are destructed and we are current or selected, unselect ourselves
// so that richlistbox's selection doesn't point to something not in the DOM.
// We don't want to reset last-selected, so we set _suppressOnSelect.
if (this.selected) {
var suppressSelect = control._suppressOnSelect;
control._suppressOnSelect = true;
control.removeItemFromSelection(this);
control._suppressOnSelect = suppressSelect;
}
if (this.current)
control.currentItem = null;
]]>
</destructor>
<!-- nsIDOMXULSelectControlItemElement -->
<property name="label" readonly="true">
<!-- Setter purposely not implemented; the getter returns a
concatentation of label text to expose via accessibility APIs -->
<getter>
<![CDATA[
const XULNS =
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
return Array.map(this.getElementsByTagNameNS(XULNS, "label"),
label => label.value)
.join(" ");
]]>
</getter>
</property>
<property name="searchLabel">
<getter>
<![CDATA[
return this.hasAttribute("searchlabel") ?
this.getAttribute("searchlabel") : this.label;
]]>
</getter>
<setter>
<![CDATA[
if (val !== null)
this.setAttribute("searchlabel", val);
else
// fall back to the label property (default value)
this.removeAttribute("searchlabel");
return val;
]]>
</setter>
</property>
<!-- nsIDOMXULSelectControlItemElement -->
<property name="value" onget="return this.getAttribute('value');"
onset="this.setAttribute('value', val); return val;"/>
<!-- nsIDOMXULSelectControlItemElement -->
<property name="selected" onget="return this.getAttribute('selected') == 'true';">
<setter><![CDATA[
if (val)
this.setAttribute("selected", "true");
else
this.removeAttribute("selected");
return val;
]]></setter>
</property>
<!-- nsIDOMXULSelectControlItemElement -->
<property name="control">
<getter><![CDATA[
var parent = this.parentNode;
while (parent) {
if (parent.localName == "richlistbox")
return parent;
parent = parent.parentNode;
}
return null;
]]></getter>
</property>
<property name="current" onget="return this.getAttribute('current') == 'true';">
<setter><![CDATA[
if (val)
this.setAttribute("current", "true");
else
this.removeAttribute("current");
return val;
]]></setter>
</property>
</implementation>
<handlers>
<!-- If there is no modifier key, we select on mousedown, not
click, so that drags work correctly. -->
<handler event="mousedown">
<![CDATA[
var control = this.control;
if (!control || control.disabled)
return;
if ((!event.ctrlKey || (/Mac/.test(navigator.platform) && event.button == 2)) &&
!event.shiftKey && !event.metaKey) {
if (!this.selected) {
control.selectItem(this);
}
control.currentItem = this;
}
]]>
</handler>
<!-- On a click (up+down on the same item), deselect everything
except this item. -->
<handler event="click" button="0">
<![CDATA[
var control = this.control;
if (!control || control.disabled)
return;
control._userSelecting = true;
if (control.selType != "multiple") {
control.selectItem(this);
} else if (event.ctrlKey || event.metaKey) {
control.toggleItemSelection(this);
control.currentItem = this;
} else if (event.shiftKey) {
control.selectItemRange(null, this);
control.currentItem = this;
} else {
/* We want to deselect all the selected items except what was
clicked, UNLESS it was a right-click. We have to do this
in click rather than mousedown so that you can drag a
selected group of items */
// use selectItemRange instead of selectItem, because this
// doesn't de- and reselect this item if it is selected
control.selectItemRange(this, this);
}
control._userSelecting = false;
]]>
</handler>
</handlers>
</binding>
</bindings>