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/**
* @class YAHOO.ext.grid.PagedGridView
* @extends YAHOO.ext.grid.GridView
* Extends the default GridView to add a paging interface.
* @constructor
* This class is created for you automatically if your data model is set to use paging.
*/
YAHOO.ext.grid.PagedGridView = function(){
YAHOO.ext.grid.PagedGridView.superclass.constructor.call(this);
this.cursor = 1;
};
YAHOO.extendX(YAHOO.ext.grid.PagedGridView, YAHOO.ext.grid.GridView, {
appendFooter : function(parentEl){
var fwrap = document.createElement('div');
fwrap.className = 'ygrid-wrap-footer';
var fbody = document.createElement('span');
fbody.className = 'ygrid-footer';
fwrap.appendChild(fbody);
parentEl.appendChild(fwrap);
this.createPagingToolbar(fbody);
return fwrap;
},
createPagingToolbar : function(container){
var tb = new YAHOO.ext.Toolbar(container);
this.pageToolbar = tb;
this.first = tb.addButton({
tooltip: this.firstText,
className: 'ygrid-page-first',
disabled: true,
click: this.onClick.createDelegate(this, ['first'])
});
this.prev = tb.addButton({
tooltip: this.prevText,
className: 'ygrid-page-prev',
disabled: true,
click: this.onClick.createDelegate(this, ['prev'])
});
tb.addSeparator();
tb.add(this.beforePageText);
var pageBox = document.createElement('input');
pageBox.type = 'text';
pageBox.size = 3;
pageBox.value = '1';
pageBox.className = 'ygrid-page-number';
tb.add(pageBox);
this.field = getEl(pageBox, true);
this.field.mon('keydown', this.onEnter, this, true);
this.field.on('focus', function(){pageBox.select();});
this.afterTextEl = tb.addText(this.afterPageText.replace('%0', '1'));
this.field.setHeight(18);
tb.addSeparator();
this.next = tb.addButton({
tooltip: this.nextText,
className: 'ygrid-page-next',
disabled: true,
click: this.onClick.createDelegate(this, ['next'])
});
this.last = tb.addButton({
tooltip: this.lastText,
className: 'ygrid-page-last',
disabled: true,
click: this.onClick.createDelegate(this, ['last'])
});
tb.addSeparator();
this.loading = tb.addButton({
tooltip: this.refreshText,
className: 'ygrid-loading',
disabled: true,
click: this.onClick.createDelegate(this, ['refresh'])
});
this.onPageLoaded(1, this.grid.dataModel.getTotalPages());
},
/**
* Returns the toolbar used for paging so you can add new buttons.
* @return {YAHOO.ext.Toolbar}
*/
getPageToolbar : function(){
return this.pageToolbar;
},
onPageLoaded : function(pageNum, totalPages){
this.cursor = pageNum;
this.lastPage = totalPages;
this.afterTextEl.innerHTML = this.afterPageText.replace('%0', totalPages);
this.field.dom.value = pageNum;
this.first.setDisabled(pageNum == 1);
this.prev.setDisabled(pageNum == 1);
this.next.setDisabled(pageNum == totalPages);
this.last.setDisabled(pageNum == totalPages);
this.loading.enable();
},
onLoadError : function(){
this.loading.enable();
},
onEnter : function(e){
if(e.browserEvent.keyCode == e.RETURN){
var v = this.field.dom.value;
if(!v){
this.field.dom.value = this.cursor;
return;
}
var pageNum = parseInt(v, 10);
if(isNaN(pageNum)){
this.field.dom.value = this.cursor;
return;
}
pageNum = Math.min(Math.max(1, pageNum), this.lastPage);
this.grid.dataModel.loadPage(pageNum);
e.stopEvent();
}
},
beforeLoad : function(){
this.grid.stopEditing();
if(this.loading){
this.loading.disable();
}
},
onClick : function(which){
switch(which){
case 'first':
this.grid.dataModel.loadPage(1);
break;
case 'prev':
this.grid.dataModel.loadPage(this.cursor -1);
break;
case 'next':
this.grid.dataModel.loadPage(this.cursor + 1);
break;
case 'last':
this.grid.dataModel.loadPage(this.lastPage);
break;
case 'refresh':
this.grid.dataModel.loadPage(this.cursor);
break;
}
},
unplugDataModel : function(dm){
dm.removeListener('beforeload', this.beforeLoad, this);
dm.removeListener('load', this.onPageLoaded, this);
dm.removeListener('loadexception', this.onLoadError, this);
YAHOO.ext.grid.PagedGridView.superclass.unplugDataModel.call(this, dm);
},
plugDataModel : function(dm){
dm.on('beforeload', this.beforeLoad, this, true);
dm.on('load', this.onPageLoaded, this, true);
dm.on('loadexception', this.onLoadError, this);
YAHOO.ext.grid.PagedGridView.superclass.plugDataModel.call(this, dm);
},
/**
* Customizable piece of the default paging text (defaults to "Page")
* @type String
*/
beforePageText : "Page",
/**
* Customizable piece of the default paging text (defaults to "of %0")
* @type String
*/
afterPageText : "of %0",
/**
* Customizable piece of the default paging text (defaults to "First Page")
* @type String
*/
firstText : "First Page",
/**
* Customizable piece of the default paging text (defaults to "Previous Page")
* @type String
*/
prevText : "Previous Page",
/**
* Customizable piece of the default paging text (defaults to "Next Page")
* @type String
*/
nextText : "Next Page",
/**
* Customizable piece of the default paging text (defaults to "Last Page")
* @type String
*/
lastText : "Last Page",
/**
* Customizable piece of the default paging text (defaults to "Refresh")
* @type String
*/
refreshText : "Refresh"
});
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