/*!
* Ext JS Library 3.4.0
* Copyright(c) 2006-2011 Sencha Inc.
* licensing@sencha.com
* http://www.sencha.com/license
*/
/**
* @class Ext.list.ListView
* @extends Ext.DataView
*
Ext.list.ListView is a fast and light-weight implentation of a
* {@link Ext.grid.GridPanel Grid} like view with the following characteristics:
*
* - resizable columns
* - selectable
* - column widths are initially proportioned by percentage based on the container
* width and number of columns
* - uses templates to render the data in any required format
* - no horizontal scrolling
* - no editing
*
* Example usage:
*
// 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 (0 items selected)',
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 ('+l+' item'+s+' selected)');
});
*
* @constructor
* @param {Object} config
* @xtype listview
*/
Ext.list.ListView = Ext.extend(Ext.DataView, {
/**
* Set this property to true to disable the header click handler disabling sort
* (defaults to false).
* @type Boolean
* @property disableHeaders
*/
/**
* @cfg {Boolean} hideHeaders
* true to hide the {@link #internalTpl header row} (defaults to false so
* the {@link #internalTpl header row} will be shown).
*/
/**
* @cfg {String} itemSelector
* Defaults to 'dl' to work with the preconfigured {@link Ext.DataView#tpl tpl}.
* This setting specifies the CSS selector (e.g. div.some-class or span:first-child)
* that will be used to determine what nodes the ListView will be working with.
*/
itemSelector: 'dl',
/**
* @cfg {String} selectedClass The CSS class applied to a selected row (defaults to
* 'x-list-selected'). An example overriding the default styling:
.x-list-selected {background-color: yellow;}
* @type String
*/
selectedClass:'x-list-selected',
/**
* @cfg {String} overClass The CSS class applied when over a row (defaults to
* 'x-list-over'). An example overriding the default styling:
.x-list-over {background-color: orange;}
* @type String
*/
overClass:'x-list-over',
/**
* @cfg {Boolean} reserveScrollOffset
* By default will defer accounting for the configured {@link #scrollOffset}
* for 10 milliseconds. Specify true to account for the configured
* {@link #scrollOffset} immediately.
*/
/**
* @cfg {Number} scrollOffset The amount of space to reserve for the scrollbar (defaults to
* undefined). If an explicit value isn't specified, this will be automatically
* calculated.
*/
scrollOffset : undefined,
/**
* @cfg {Boolean/Object} columnResize
* Specify true or specify a configuration object for {@link Ext.list.ListView.ColumnResizer}
* to enable the columns to be resizable (defaults to true).
*/
columnResize: true,
/**
* @cfg {Array} columns An array of column configuration objects, for example:
*
{
align: 'right',
dataIndex: 'size',
header: 'Size',
tpl: '{size:fileSize}',
width: .35
}
*
* Acceptable properties for each column configuration object are:
*
* - align : String
Set the CSS text-align property
* of the column. Defaults to 'left'.
* - dataIndex : String
See {@link Ext.grid.Column}.
* {@link Ext.grid.Column#dataIndex dataIndex} for details.
* - header : String
See {@link Ext.grid.Column}.
* {@link Ext.grid.Column#header header} for details.
* - tpl : String
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 dataIndex.
* - width : Number
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.
*
*/
/**
* @cfg {Boolean/Object} columnSort
* Specify true or specify a configuration object for {@link Ext.list.ListView.Sorter}
* to enable the columns to be sortable (defaults to true).
*/
columnSort: true,
/**
* @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(
'',
''
);
}
if(!this.tpl){
this.tpl = new Ext.XTemplate(
'',
'',
'',
'- ',
' class="{cls}
">',
'{[values.tpl.apply(parent)]}',
'',
'
',
'',
'',
''
);
};
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;
},
/**
* 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:
*
* @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;