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Bug 133365 Type letters to navigate XUL listbox

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Adde new event handler for keypress event


git-svn-id: svn://10.0.0.236/trunk@121714 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
kyle.yuan%sun.com
2002-05-17 00:50:01 +00:00
parent 2078ec04b8
commit 5cc26f3617
1 changed files with 46 additions and 0 deletions
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46
mozilla/xpfe/global/resources/content/bindings/listbox.xml
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@@ -34,6 +34,8 @@
<field name="_selectionStart">null</field>
<field name="_currentItem">null</field>
<field name="_selectTimeout">null</field>
<field name="_lastKeyTime">0</field>
<field name="_incrementalString">""</field>
<constructor>
<![CDATA[
@@ -61,6 +63,11 @@
onget="return this.boxObject.QueryInterface(Components.interfaces.nsIListBoxObject);"
readonly="true"/>
<property name="disableKeyNavigation"
onget="return this.hasAttribute('disableKeyNavigation');"
onset="if (val) this.setAttribute('disableKeyNavigation', 'true');
else this.removeAttribute('disableKeyNavigation'); return val;"/>
<method name="timedSelect">
<parameter name="item"/>
<parameter name="timeout"/>
@@ -635,6 +642,45 @@
this.currentItem.checked = !this.currentItem.checked;
]]>
</handler>
<handler event="keypress">
<![CDATA[
if (!this.disableKeyNavigation && event.charCode > 0) {
var key = String.fromCharCode(event.charCode);
key = key.toLowerCase();
if (event.timeStamp - this._lastKeyTime > 1000)
this._incrementalString = key;
else {
if (this._incrementalString.length != 1 || this._incrementalString.charAt(0) != key.charAt(0))
this._incrementalString += key;
}
this._lastKeyTime = event.timeStamp;
var l = this.selectedItems.length;
var c = -1;
if (l > 0)
c = this.getIndexOfItem(this.selectedItems[l-1]);
var rowCount = this.getRowCount();
var start = 1;
if (this._incrementalString.length > 1)
start = 0;
for (var i = 0; i < rowCount; i++) {
var k = (i + start + c) % rowCount;
var item = this.getItemAtIndex(k); //listitem
var cellText = item.getAttribute("label");
cellText = cellText.toLowerCase();
if (cellText.search(this._incrementalString) == 0) {
this._isUpSelection=0;
this._isDownSelection=0;
this.ensureIndexIsVisible(k);
this.timedSelect(item, 500);
break;
}
}
}
]]>
</handler>
</handlers>
</binding>