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<html>
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<title>The source code</title>
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<pre class="prettyprint lang-js">/*!
* Ext JS Library 3.4.0
* Copyright(c) 2006-2011 Sencha Inc.
* licensing@sencha.com
* http://www.sencha.com/license
*/
<div id="cls-Ext.list.ListView"></div>/**
* @class Ext.list.ListView
* @extends Ext.DataView
* <p>Ext.list.ListView is a fast and light-weight implentation of a
* {@link Ext.grid.GridPanel Grid} like view with the following characteristics:</p>
* <div class="mdetail-params"><ul>
* <li>resizable columns</li>
* <li>selectable</li>
* <li>column widths are initially proportioned by percentage based on the container
* width and number of columns</li>
* <li>uses templates to render the data in any required format</li>
* <li>no horizontal scrolling</li>
* <li>no editing</li>
* </ul></div>
* <p>Example usage:</p>
* <pre><code>
// consume JSON of this form:
{
"images":[
{
"name":"dance_fever.jpg",
"size":2067,
"lastmod":1236974993000,
"url":"images\/thumbs\/dance_fever.jpg"
},
{
"name":"zack_sink.jpg",
"size":2303,
"lastmod":1236974993000,
"url":"images\/thumbs\/zack_sink.jpg"
}
]
}
var store = new Ext.data.JsonStore({
url: 'get-images.php',
root: 'images',
fields: [
'name', 'url',
{name:'size', type: 'float'},
{name:'lastmod', type:'date', dateFormat:'timestamp'}
]
});
store.load();
var listView = new Ext.list.ListView({
store: store,
multiSelect: true,
emptyText: 'No images to display',
reserveScrollOffset: true,
columns: [{
header: 'File',
width: .5,
dataIndex: 'name'
},{
header: 'Last Modified',
width: .35,
dataIndex: 'lastmod',
tpl: '{lastmod:date("m-d h:i a")}'
},{
header: 'Size',
dataIndex: 'size',
tpl: '{size:fileSize}', // format using Ext.util.Format.fileSize()
align: 'right'
}]
});
// put it in a Panel so it looks pretty
var panel = new Ext.Panel({
id:'images-view',
width:425,
height:250,
collapsible:true,
layout:'fit',
title:'Simple ListView <i>(0 items selected)</i>',
items: listView
});
panel.render(document.body);
// little bit of feedback
listView.on('selectionchange', function(view, nodes){
var l = nodes.length;
var s = l != 1 ? 's' : '';
panel.setTitle('Simple ListView <i>('+l+' item'+s+' selected)</i>');
});
* </code></pre>
* @constructor
* @param {Object} config
* @xtype listview
*/
Ext.list.ListView = Ext.extend(Ext.DataView, {
<div id="prop-Ext.list.ListView-disableHeaders"></div>/**
* Set this property to <tt>true</tt> to disable the header click handler disabling sort
* (defaults to <tt>false</tt>).
* @type Boolean
* @property disableHeaders
*/
<div id="cfg-Ext.list.ListView-hideHeaders"></div>/**
* @cfg {Boolean} hideHeaders
* <tt>true</tt> to hide the {@link #internalTpl header row} (defaults to <tt>false</tt> so
* the {@link #internalTpl header row} will be shown).
*/
<div id="cfg-Ext.list.ListView-itemSelector"></div>/**
* @cfg {String} itemSelector
* Defaults to <tt>'dl'</tt> to work with the preconfigured <b><tt>{@link Ext.DataView#tpl tpl}</tt></b>.
* This setting specifies the CSS selector (e.g. <tt>div.some-class</tt> or <tt>span:first-child</tt>)
* that will be used to determine what nodes the ListView will be working with.
*/
itemSelector: 'dl',
<div id="cfg-Ext.list.ListView-selectedClass"></div>/**
* @cfg {String} selectedClass The CSS class applied to a selected row (defaults to
* <tt>'x-list-selected'</tt>). An example overriding the default styling:
<pre><code>
.x-list-selected {background-color: yellow;}
</code></pre>
* @type String
*/
selectedClass:'x-list-selected',
<div id="cfg-Ext.list.ListView-overClass"></div>/**
* @cfg {String} overClass The CSS class applied when over a row (defaults to
* <tt>'x-list-over'</tt>). An example overriding the default styling:
<pre><code>
.x-list-over {background-color: orange;}
</code></pre>
* @type String
*/
overClass:'x-list-over',
<div id="cfg-Ext.list.ListView-reserveScrollOffset"></div>/**
* @cfg {Boolean} reserveScrollOffset
* By default will defer accounting for the configured <b><tt>{@link #scrollOffset}</tt></b>
* for 10 milliseconds. Specify <tt>true</tt> to account for the configured
* <b><tt>{@link #scrollOffset}</tt></b> immediately.
*/
<div id="cfg-Ext.list.ListView-scrollOffset"></div>/**
* @cfg {Number} scrollOffset The amount of space to reserve for the scrollbar (defaults to
* <tt>undefined</tt>). If an explicit value isn't specified, this will be automatically
* calculated.
*/
scrollOffset : undefined,
<div id="cfg-Ext.list.ListView-columnResize"></div>/**
* @cfg {Boolean/Object} columnResize
* Specify <tt>true</tt> or specify a configuration object for {@link Ext.list.ListView.ColumnResizer}
* to enable the columns to be resizable (defaults to <tt>true</tt>).
*/
columnResize: true,
<div id="cfg-Ext.list.ListView-columns"></div>/**
* @cfg {Array} columns An array of column configuration objects, for example:
* <pre><code>
{
align: 'right',
dataIndex: 'size',
header: 'Size',
tpl: '{size:fileSize}',
width: .35
}
* </code></pre>
* Acceptable properties for each column configuration object are:
* <div class="mdetail-params"><ul>
* <li><b><tt>align</tt></b> : String<div class="sub-desc">Set the CSS text-align property
* of the column. Defaults to <tt>'left'</tt>.</div></li>
* <li><b><tt>dataIndex</tt></b> : String<div class="sub-desc">See {@link Ext.grid.Column}.
* {@link Ext.grid.Column#dataIndex dataIndex} for details.</div></li>
* <li><b><tt>header</tt></b> : String<div class="sub-desc">See {@link Ext.grid.Column}.
* {@link Ext.grid.Column#header header} for details.</div></li>
* <li><b><tt>tpl</tt></b> : String<div class="sub-desc">Specify a string to pass as the
* configuration string for {@link Ext.XTemplate}. By default an {@link Ext.XTemplate}
* will be implicitly created using the <tt>dataIndex</tt>.</div></li>
* <li><b><tt>width</tt></b> : Number<div class="sub-desc">Percentage of the container width
* this column should be allocated. Columns that have no width specified will be
* allocated with an equal percentage to fill 100% of the container width. To easily take
* advantage of the full container width, leave the width of at least one column undefined.
* Note that if you do not want to take up the full width of the container, the width of
* every column needs to be explicitly defined.</div></li>
* </ul></div>
*/
<div id="cfg-Ext.list.ListView-columnSort"></div>/**
* @cfg {Boolean/Object} columnSort
* Specify <tt>true</tt> or specify a configuration object for {@link Ext.list.ListView.Sorter}
* to enable the columns to be sortable (defaults to <tt>true</tt>).
*/
columnSort: true,
<div id="cfg-Ext.list.ListView-internalTpl"></div>/**
* @cfg {String/Array} internalTpl
* The template to be used for the header row. See {@link #tpl} for more details.
*/
/*
* IE has issues when setting percentage based widths to 100%. Default to 99.
*/
maxColumnWidth: Ext.isIE ? 99 : 100,
initComponent : function(){
if(this.columnResize){
this.colResizer = new Ext.list.ColumnResizer(this.colResizer);
this.colResizer.init(this);
}
if(this.columnSort){
this.colSorter = new Ext.list.Sorter(this.columnSort);
this.colSorter.init(this);
}
if(!this.internalTpl){
this.internalTpl = new Ext.XTemplate(
'<div class="x-list-header"><div class="x-list-header-inner">',
'<tpl for="columns">',
'<div style="width:{[values.width*100]}%;text-align:{align};"><em unselectable="on" id="',this.id, '-xlhd-{#}">',
'{header}',
'</em></div>',
'</tpl>',
'<div class="x-clear"></div>',
'</div></div>',
'<div class="x-list-body"><div class="x-list-body-inner">',
'</div></div>'
);
}
if(!this.tpl){
this.tpl = new Ext.XTemplate(
'<tpl for="rows">',
'<dl>',
'<tpl for="parent.columns">',
'<dt style="width:{[values.width*100]}%;text-align:{align};">',
'<em unselectable="on"<tpl if="cls"> class="{cls}</tpl>">',
'{[values.tpl.apply(parent)]}',
'</em></dt>',
'</tpl>',
'<div class="x-clear"></div>',
'</dl>',
'</tpl>'
);
};
var cs = this.columns,
allocatedWidth = 0,
colsWithWidth = 0,
len = cs.length,
columns = [];
for(var i = 0; i < len; i++){
var c = cs[i];
if(!c.isColumn) {
c.xtype = c.xtype ? (/^lv/.test(c.xtype) ? c.xtype : 'lv' + c.xtype) : 'lvcolumn';
c = Ext.create(c);
}
if(c.width) {
allocatedWidth += c.width*100;
if(allocatedWidth > this.maxColumnWidth){
c.width -= (allocatedWidth - this.maxColumnWidth) / 100;
}
colsWithWidth++;
}
columns.push(c);
}
cs = this.columns = columns;
// auto calculate missing column widths
if(colsWithWidth < len){
var remaining = len - colsWithWidth;
if(allocatedWidth < this.maxColumnWidth){
var perCol = ((this.maxColumnWidth-allocatedWidth) / remaining)/100;
for(var j = 0; j < len; j++){
var c = cs[j];
if(!c.width){
c.width = perCol;
}
}
}
}
Ext.list.ListView.superclass.initComponent.call(this);
},
onRender : function(){
this.autoEl = {
cls: 'x-list-wrap'
};
Ext.list.ListView.superclass.onRender.apply(this, arguments);
this.internalTpl.overwrite(this.el, {columns: this.columns});
this.innerBody = Ext.get(this.el.dom.childNodes[1].firstChild);
this.innerHd = Ext.get(this.el.dom.firstChild.firstChild);
if(this.hideHeaders){
this.el.dom.firstChild.style.display = 'none';
}
},
getTemplateTarget : function(){
return this.innerBody;
},
<div id="method-Ext.list.ListView-collectData"></div>/**
* <p>Function which can be overridden which returns the data object passed to this
* view's {@link #tpl template} to render the whole ListView. The returned object
* shall contain the following properties:</p>
* <div class="mdetail-params"><ul>
* <li><b>columns</b> : String<div class="sub-desc">See <tt>{@link #columns}</tt></div></li>
* <li><b>rows</b> : String<div class="sub-desc">See
* <tt>{@link Ext.DataView}.{@link Ext.DataView#collectData collectData}</div></li>
* </ul></div>
* @param {Array} records An Array of {@link Ext.data.Record}s to be rendered into the DataView.
* @param {Number} startIndex the index number of the Record being prepared for rendering.
* @return {Object} A data object containing properties to be processed by a repeating
* XTemplate as described above.
*/
collectData : function(){
var rs = Ext.list.ListView.superclass.collectData.apply(this, arguments);
return {
columns: this.columns,
rows: rs
};
},
verifyInternalSize : function(){
if(this.lastSize){
this.onResize(this.lastSize.width, this.lastSize.height);
}
},
// private
onResize : function(w, h){
var body = this.innerBody.dom,
header = this.innerHd.dom,
scrollWidth = w - Ext.num(this.scrollOffset, Ext.getScrollBarWidth()) + 'px',
parentNode;
if(!body){
return;
}
parentNode = body.parentNode;
if(Ext.isNumber(w)){
if(this.reserveScrollOffset || ((parentNode.offsetWidth - parentNode.clientWidth) > 10)){
body.style.width = scrollWidth;
header.style.width = scrollWidth;
}else{
body.style.width = w + 'px';
header.style.width = w + 'px';
setTimeout(function(){
if((parentNode.offsetWidth - parentNode.clientWidth) > 10){
body.style.width = scrollWidth;
header.style.width = scrollWidth;
}
}, 10);
}
}
if(Ext.isNumber(h)){
parentNode.style.height = Math.max(0, h - header.parentNode.offsetHeight) + 'px';
}
},
updateIndexes : function(){
Ext.list.ListView.superclass.updateIndexes.apply(this, arguments);
this.verifyInternalSize();
},
findHeaderIndex : function(header){
header = header.dom || header;
var parentNode = header.parentNode,
children = parentNode.parentNode.childNodes,
i = 0,
c;
for(; c = children[i]; i++){
if(c == parentNode){
return i;
}
}
return -1;
},
setHdWidths : function(){
var els = this.innerHd.dom.getElementsByTagName('div'),
i = 0,
columns = this.columns,
len = columns.length;
for(; i < len; i++){
els[i].style.width = (columns[i].width*100) + '%';
}
}
});
Ext.reg('listview', Ext.list.ListView);
// Backwards compatibility alias
Ext.ListView = Ext.list.ListView;</pre>
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