/*!
- * Ext JS Library 3.3.1
- * Copyright(c) 2006-2010 Sencha Inc.
- * licensing@sencha.com
- * http://www.sencha.com/license
- */
-/**
- * @class Ext.DataView
- * @extends Ext.BoxComponent
- * A mechanism for displaying data using custom layout templates and formatting. DataView uses an {@link Ext.XTemplate}
- * as its internal templating mechanism, and is bound to an {@link Ext.data.Store}
- * so that as the data in the store changes the view is automatically updated to reflect the changes. The view also
- * provides built-in behavior for many common events that can occur for its contained items including click, doubleclick,
- * mouseover, mouseout, etc. as well as a built-in selection model. In order to use these features, an {@link #itemSelector}
- * config must be provided for the DataView to determine what nodes it will be working with.
- *
- * The example below binds a DataView to a {@link Ext.data.Store} and renders it into an {@link Ext.Panel}.
- *
-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 tpl = new Ext.XTemplate(
- '<tpl for=".">',
- '<div class="thumb-wrap" id="{name}">',
- '<div class="thumb"><img src="{url}" title="{name}"></div>',
- '<span class="x-editable">{shortName}</span></div>',
- '</tpl>',
- '<div class="x-clear"></div>'
-);
-
-var panel = new Ext.Panel({
- id:'images-view',
- frame:true,
- width:535,
- autoHeight:true,
- collapsible:true,
- layout:'fit',
- title:'Simple DataView',
-
- items: new Ext.DataView({
- store: store,
- tpl: tpl,
- autoHeight:true,
- multiSelect: true,
- overClass:'x-view-over',
- itemSelector:'div.thumb-wrap',
- emptyText: 'No images to display'
- })
-});
-panel.render(document.body);
-
- * @constructor
- * Create a new DataView
- * @param {Object} config The config object
- * @xtype dataview
- */
-Ext.DataView = Ext.extend(Ext.BoxComponent, {
- /**
- * @cfg {String/Array} tpl
- * The HTML fragment or an array of fragments that will make up the template used by this DataView. This should
- * be specified in the same format expected by the constructor of {@link Ext.XTemplate}.
- */
- /**
- * @cfg {Ext.data.Store} store
- * The {@link Ext.data.Store} to bind this DataView to.
- */
- /**
- * @cfg {String} itemSelector
- * This is a required setting. A simple CSS selector (e.g. div.some-class or
- * span:first-child) that will be used to determine what nodes this DataView will be
- * working with.
- */
- /**
- * @cfg {Boolean} multiSelect
- * True to allow selection of more than one item at a time, false to allow selection of only a single item
- * at a time or no selection at all, depending on the value of {@link #singleSelect} (defaults to false).
- */
- /**
- * @cfg {Boolean} singleSelect
- * True to allow selection of exactly one item at a time, false to allow no selection at all (defaults to false).
- * Note that if {@link #multiSelect} = true, this value will be ignored.
- */
- /**
- * @cfg {Boolean} simpleSelect
- * True to enable multiselection by clicking on multiple items without requiring the user to hold Shift or Ctrl,
- * false to force the user to hold Ctrl or Shift to select more than on item (defaults to false).
- */
- /**
- * @cfg {String} overClass
- * A CSS class to apply to each item in the view on mouseover (defaults to undefined).
- */
- /**
- * @cfg {String} loadingText
- * A string to display during data load operations (defaults to undefined). If specified, this text will be
- * displayed in a loading div and the view's contents will be cleared while loading, otherwise the view's
- * contents will continue to display normally until the new data is loaded and the contents are replaced.
- */
- /**
- * @cfg {String} selectedClass
- * A CSS class to apply to each selected item in the view (defaults to 'x-view-selected').
- */
- selectedClass : "x-view-selected",
- /**
- * @cfg {String} emptyText
- * The text to display in the view when there is no data to display (defaults to '').
- */
- emptyText : "",
-
- /**
- * @cfg {Boolean} deferEmptyText True to defer emptyText being applied until the store's first load
- */
- deferEmptyText: true,
- /**
- * @cfg {Boolean} trackOver True to enable mouseenter and mouseleave events
- */
- trackOver: false,
-
- /**
- * @cfg {Boolean} blockRefresh Set this to true to ignore datachanged events on the bound store. This is useful if
- * you wish to provide custom transition animations via a plugin (defaults to false)
- */
- blockRefresh: false,
-
- //private
- last: false,
-
- // private
- initComponent : function(){
- Ext.DataView.superclass.initComponent.call(this);
- if(Ext.isString(this.tpl) || Ext.isArray(this.tpl)){
- this.tpl = new Ext.XTemplate(this.tpl);
- }
-
- this.addEvents(
- /**
- * @event beforeclick
- * Fires before a click is processed. Returns false to cancel the default action.
- * @param {Ext.DataView} this
- * @param {Number} index The index of the target node
- * @param {HTMLElement} node The target node
- * @param {Ext.EventObject} e The raw event object
- */
- "beforeclick",
- /**
- * @event click
- * Fires when a template node is clicked.
- * @param {Ext.DataView} this
- * @param {Number} index The index of the target node
- * @param {HTMLElement} node The target node
- * @param {Ext.EventObject} e The raw event object
- */
- "click",
- /**
- * @event mouseenter
- * Fires when the mouse enters a template node. trackOver:true or an overClass must be set to enable this event.
- * @param {Ext.DataView} this
- * @param {Number} index The index of the target node
- * @param {HTMLElement} node The target node
- * @param {Ext.EventObject} e The raw event object
- */
- "mouseenter",
- /**
- * @event mouseleave
- * Fires when the mouse leaves a template node. trackOver:true or an overClass must be set to enable this event.
- * @param {Ext.DataView} this
- * @param {Number} index The index of the target node
- * @param {HTMLElement} node The target node
- * @param {Ext.EventObject} e The raw event object
- */
- "mouseleave",
- /**
- * @event containerclick
- * Fires when a click occurs and it is not on a template node.
- * @param {Ext.DataView} this
- * @param {Ext.EventObject} e The raw event object
- */
- "containerclick",
- /**
- * @event dblclick
- * Fires when a template node is double clicked.
- * @param {Ext.DataView} this
- * @param {Number} index The index of the target node
- * @param {HTMLElement} node The target node
- * @param {Ext.EventObject} e The raw event object
- */
- "dblclick",
- /**
- * @event contextmenu
- * Fires when a template node is right clicked.
- * @param {Ext.DataView} this
- * @param {Number} index The index of the target node
- * @param {HTMLElement} node The target node
- * @param {Ext.EventObject} e The raw event object
- */
- "contextmenu",
- /**
- * @event containercontextmenu
- * Fires when a right click occurs that is not on a template node.
- * @param {Ext.DataView} this
- * @param {Ext.EventObject} e The raw event object
- */
- "containercontextmenu",
- /**
- * @event selectionchange
- * Fires when the selected nodes change.
- * @param {Ext.DataView} this
- * @param {Array} selections Array of the selected nodes
- */
- "selectionchange",
-
- /**
- * @event beforeselect
- * Fires before a selection is made. If any handlers return false, the selection is cancelled.
- * @param {Ext.DataView} this
- * @param {HTMLElement} node The node to be selected
- * @param {Array} selections Array of currently selected nodes
- */
- "beforeselect"
- );
-
- this.store = Ext.StoreMgr.lookup(this.store);
- this.all = new Ext.CompositeElementLite();
- this.selected = new Ext.CompositeElementLite();
- },
-
- // private
- afterRender : function(){
- Ext.DataView.superclass.afterRender.call(this);
-
- this.mon(this.getTemplateTarget(), {
- "click": this.onClick,
- "dblclick": this.onDblClick,
- "contextmenu": this.onContextMenu,
- scope:this
- });
-
- if(this.overClass || this.trackOver){
- this.mon(this.getTemplateTarget(), {
- "mouseover": this.onMouseOver,
- "mouseout": this.onMouseOut,
- scope:this
- });
- }
-
- if(this.store){
- this.bindStore(this.store, true);
- }
- },
-
- /**
- * Refreshes the view by reloading the data from the store and re-rendering the template.
- */
- refresh : function() {
- this.clearSelections(false, true);
- var el = this.getTemplateTarget(),
- records = this.store.getRange();
-
- el.update('');
- if(records.length < 1){
- if(!this.deferEmptyText || this.hasSkippedEmptyText){
- el.update(this.emptyText);
- }
- this.all.clear();
- }else{
- this.tpl.overwrite(el, this.collectData(records, 0));
- this.all.fill(Ext.query(this.itemSelector, el.dom));
- this.updateIndexes(0);
- }
- this.hasSkippedEmptyText = true;
- },
-
- getTemplateTarget: function(){
- return this.el;
- },
-
- /**
- * Function which can be overridden to provide custom formatting for each Record that is used by this
- * DataView's {@link #tpl template} to render each node.
- * @param {Array/Object} data The raw data object that was used to create the Record.
- * @param {Number} recordIndex the index number of the Record being prepared for rendering.
- * @param {Record} record The Record being prepared for rendering.
- * @return {Array/Object} The formatted data in a format expected by the internal {@link #tpl template}'s overwrite() method.
- * (either an array if your params are numeric (i.e. {0}) or an object (i.e. {foo: 'bar'}))
- */
- prepareData : function(data){
- return data;
- },
-
- /**
- * Function which can be overridden which returns the data object passed to this
- * DataView's {@link #tpl template} to render the whole DataView.
- * This is usually an Array of data objects, each element of which is processed by an
- * {@link Ext.XTemplate XTemplate} which uses '<tpl for=".">' to iterate over its supplied
- * data object as an Array. However, named properties may be placed into the data object to
- * provide non-repeating data such as headings, totals etc.
- * @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 {Array} An Array of data objects to be processed by a repeating XTemplate. May also
- * contain named properties.
- */
- collectData : function(records, startIndex){
- var r = [],
- i = 0,
- len = records.length;
- for(; i < len; i++){
- r[r.length] = this.prepareData(records[i].data, startIndex + i, records[i]);
- }
- return r;
- },
-
- // private
- bufferRender : function(records, index){
- var div = document.createElement('div');
- this.tpl.overwrite(div, this.collectData(records, index));
- return Ext.query(this.itemSelector, div);
- },
-
- // private
- onUpdate : function(ds, record){
- var index = this.store.indexOf(record);
- if(index > -1){
- var sel = this.isSelected(index),
- original = this.all.elements[index],
- node = this.bufferRender([record], index)[0];
-
- this.all.replaceElement(index, node, true);
- if(sel){
- this.selected.replaceElement(original, node);
- this.all.item(index).addClass(this.selectedClass);
- }
- this.updateIndexes(index, index);
- }
- },
-
- // private
- onAdd : function(ds, records, index){
- if(this.all.getCount() === 0){
- this.refresh();
- return;
- }
- var nodes = this.bufferRender(records, index), n, a = this.all.elements;
- if(index < this.all.getCount()){
- n = this.all.item(index).insertSibling(nodes, 'before', true);
- a.splice.apply(a, [index, 0].concat(nodes));
- }else{
- n = this.all.last().insertSibling(nodes, 'after', true);
- a.push.apply(a, nodes);
- }
- this.updateIndexes(index);
- },
-
- // private
- onRemove : function(ds, record, index){
- this.deselect(index);
- this.all.removeElement(index, true);
- this.updateIndexes(index);
- if (this.store.getCount() === 0){
- this.refresh();
- }
- },
-
- /**
- * Refreshes an individual node's data from the store.
- * @param {Number} index The item's data index in the store
- */
- refreshNode : function(index){
- this.onUpdate(this.store, this.store.getAt(index));
- },
-
- // private
- updateIndexes : function(startIndex, endIndex){
- var ns = this.all.elements;
- startIndex = startIndex || 0;
- endIndex = endIndex || ((endIndex === 0) ? 0 : (ns.length - 1));
- for(var i = startIndex; i <= endIndex; i++){
- ns[i].viewIndex = i;
- }
- },
-
- /**
- * Returns the store associated with this DataView.
- * @return {Ext.data.Store} The store
- */
- getStore : function(){
- return this.store;
- },
-
- /**
- * Changes the data store bound to this view and refreshes it.
- * @param {Store} store The store to bind to this view
- */
- bindStore : function(store, initial){
- if(!initial && this.store){
- if(store !== this.store && this.store.autoDestroy){
- this.store.destroy();
- }else{
- this.store.un("beforeload", this.onBeforeLoad, this);
- this.store.un("datachanged", this.onDataChanged, this);
- this.store.un("add", this.onAdd, this);
- this.store.un("remove", this.onRemove, this);
- this.store.un("update", this.onUpdate, this);
- this.store.un("clear", this.refresh, this);
- }
- if(!store){
- this.store = null;
- }
- }
- if(store){
- store = Ext.StoreMgr.lookup(store);
- store.on({
- scope: this,
- beforeload: this.onBeforeLoad,
- datachanged: this.onDataChanged,
- add: this.onAdd,
- remove: this.onRemove,
- update: this.onUpdate,
- clear: this.refresh
- });
- }
- this.store = store;
- if(store){
- this.refresh();
- }
- },
-
- /**
- * @private
- * Calls this.refresh if this.blockRefresh is not true
- */
- onDataChanged: function() {
- if (this.blockRefresh !== true) {
- this.refresh.apply(this, arguments);
- }
- },
-
- /**
- * Returns the template node the passed child belongs to, or null if it doesn't belong to one.
- * @param {HTMLElement} node
- * @return {HTMLElement} The template node
- */
- findItemFromChild : function(node){
- return Ext.fly(node).findParent(this.itemSelector, this.getTemplateTarget());
- },
-
- // private
- onClick : function(e){
- var item = e.getTarget(this.itemSelector, this.getTemplateTarget()),
- index;
- if(item){
- index = this.indexOf(item);
- if(this.onItemClick(item, index, e) !== false){
- this.fireEvent("click", this, index, item, e);
- }
- }else{
- if(this.fireEvent("containerclick", this, e) !== false){
- this.onContainerClick(e);
- }
- }
- },
-
- onContainerClick : function(e){
- this.clearSelections();
- },
-
- // private
- onContextMenu : function(e){
- var item = e.getTarget(this.itemSelector, this.getTemplateTarget());
- if(item){
- this.fireEvent("contextmenu", this, this.indexOf(item), item, e);
- }else{
- this.fireEvent("containercontextmenu", this, e);
- }
- },
-
- // private
- onDblClick : function(e){
- var item = e.getTarget(this.itemSelector, this.getTemplateTarget());
- if(item){
- this.fireEvent("dblclick", this, this.indexOf(item), item, e);
- }
- },
-
- // private
- onMouseOver : function(e){
- var item = e.getTarget(this.itemSelector, this.getTemplateTarget());
- if(item && item !== this.lastItem){
- this.lastItem = item;
- Ext.fly(item).addClass(this.overClass);
- this.fireEvent("mouseenter", this, this.indexOf(item), item, e);
- }
- },
-
- // private
- onMouseOut : function(e){
- if(this.lastItem){
- if(!e.within(this.lastItem, true, true)){
- Ext.fly(this.lastItem).removeClass(this.overClass);
- this.fireEvent("mouseleave", this, this.indexOf(this.lastItem), this.lastItem, e);
- delete this.lastItem;
- }
- }
- },
-
- // private
- onItemClick : function(item, index, e){
- if(this.fireEvent("beforeclick", this, index, item, e) === false){
- return false;
- }
- if(this.multiSelect){
- this.doMultiSelection(item, index, e);
- e.preventDefault();
- }else if(this.singleSelect){
- this.doSingleSelection(item, index, e);
- e.preventDefault();
- }
- return true;
- },
-
- // private
- doSingleSelection : function(item, index, e){
- if(e.ctrlKey && this.isSelected(index)){
- this.deselect(index);
- }else{
- this.select(index, false);
- }
- },
-
- // private
- doMultiSelection : function(item, index, e){
- if(e.shiftKey && this.last !== false){
- var last = this.last;
- this.selectRange(last, index, e.ctrlKey);
- this.last = last; // reset the last
- }else{
- if((e.ctrlKey||this.simpleSelect) && this.isSelected(index)){
- this.deselect(index);
- }else{
- this.select(index, e.ctrlKey || e.shiftKey || this.simpleSelect);
- }
- }
- },
-
- /**
- * Gets the number of selected nodes.
- * @return {Number} The node count
- */
- getSelectionCount : function(){
- return this.selected.getCount();
- },
-
- /**
- * Gets the currently selected nodes.
- * @return {Array} An array of HTMLElements
- */
- getSelectedNodes : function(){
- return this.selected.elements;
- },
-
- /**
- * Gets the indexes of the selected nodes.
- * @return {Array} An array of numeric indexes
- */
- getSelectedIndexes : function(){
- var indexes = [],
- selected = this.selected.elements,
- i = 0,
- len = selected.length;
-
- for(; i < len; i++){
- indexes.push(selected[i].viewIndex);
- }
- return indexes;
- },
-
- /**
- * Gets an array of the selected records
- * @return {Array} An array of {@link Ext.data.Record} objects
- */
- getSelectedRecords : function(){
- return this.getRecords(this.selected.elements);
- },
-
- /**
- * Gets an array of the records from an array of nodes
- * @param {Array} nodes The nodes to evaluate
- * @return {Array} records The {@link Ext.data.Record} objects
- */
- getRecords : function(nodes){
- var records = [],
- i = 0,
- len = nodes.length;
-
- for(; i < len; i++){
- records[records.length] = this.store.getAt(nodes[i].viewIndex);
- }
- return records;
- },
-
- /**
- * Gets a record from a node
- * @param {HTMLElement} node The node to evaluate
- * @return {Record} record The {@link Ext.data.Record} object
- */
- getRecord : function(node){
- return this.store.getAt(node.viewIndex);
- },
-
- /**
- * Clears all selections.
- * @param {Boolean} suppressEvent (optional) True to skip firing of the selectionchange event
- */
- clearSelections : function(suppressEvent, skipUpdate){
- if((this.multiSelect || this.singleSelect) && this.selected.getCount() > 0){
- if(!skipUpdate){
- this.selected.removeClass(this.selectedClass);
- }
- this.selected.clear();
- this.last = false;
- if(!suppressEvent){
- this.fireEvent("selectionchange", this, this.selected.elements);
- }
- }
- },
-
- /**
- * Returns true if the passed node is selected, else false.
- * @param {HTMLElement/Number/Ext.data.Record} node The node, node index or record to check
- * @return {Boolean} True if selected, else false
- */
- isSelected : function(node){
- return this.selected.contains(this.getNode(node));
- },
-
- /**
- * Deselects a node.
- * @param {HTMLElement/Number/Record} node The node, node index or record to deselect
- */
- deselect : function(node){
- if(this.isSelected(node)){
- node = this.getNode(node);
- this.selected.removeElement(node);
- if(this.last == node.viewIndex){
- this.last = false;
- }
- Ext.fly(node).removeClass(this.selectedClass);
- this.fireEvent("selectionchange", this, this.selected.elements);
- }
- },
-
- /**
- * Selects a set of nodes.
- * @param {Array/HTMLElement/String/Number/Ext.data.Record} nodeInfo An HTMLElement template node, index of a template node,
- * id of a template node, record associated with a node or an array of any of those to select
- * @param {Boolean} keepExisting (optional) true to keep existing selections
- * @param {Boolean} suppressEvent (optional) true to skip firing of the selectionchange vent
- */
- select : function(nodeInfo, keepExisting, suppressEvent){
- if(Ext.isArray(nodeInfo)){
- if(!keepExisting){
- this.clearSelections(true);
- }
- for(var i = 0, len = nodeInfo.length; i < len; i++){
- this.select(nodeInfo[i], true, true);
- }
- if(!suppressEvent){
- this.fireEvent("selectionchange", this, this.selected.elements);
- }
- } else{
- var node = this.getNode(nodeInfo);
- if(!keepExisting){
- this.clearSelections(true);
- }
- if(node && !this.isSelected(node)){
- if(this.fireEvent("beforeselect", this, node, this.selected.elements) !== false){
- Ext.fly(node).addClass(this.selectedClass);
- this.selected.add(node);
- this.last = node.viewIndex;
- if(!suppressEvent){
- this.fireEvent("selectionchange", this, this.selected.elements);
- }
- }
- }
- }
- },
-
- /**
- * Selects a range of nodes. All nodes between start and end are selected.
- * @param {Number} start The index of the first node in the range
- * @param {Number} end The index of the last node in the range
- * @param {Boolean} keepExisting (optional) True to retain existing selections
- */
- selectRange : function(start, end, keepExisting){
- if(!keepExisting){
- this.clearSelections(true);
- }
- this.select(this.getNodes(start, end), true);
- },
-
- /**
- * Gets a template node.
- * @param {HTMLElement/String/Number/Ext.data.Record} nodeInfo An HTMLElement template node, index of a template node,
- * the id of a template node or the record associated with the node.
- * @return {HTMLElement} The node or null if it wasn't found
- */
- getNode : function(nodeInfo){
- if(Ext.isString(nodeInfo)){
- return document.getElementById(nodeInfo);
- }else if(Ext.isNumber(nodeInfo)){
- return this.all.elements[nodeInfo];
- }else if(nodeInfo instanceof Ext.data.Record){
- var idx = this.store.indexOf(nodeInfo);
- return this.all.elements[idx];
- }
- return nodeInfo;
- },
-
- /**
- * Gets a range nodes.
- * @param {Number} start (optional) The index of the first node in the range
- * @param {Number} end (optional) The index of the last node in the range
- * @return {Array} An array of nodes
- */
- getNodes : function(start, end){
- var ns = this.all.elements,
- nodes = [],
- i;
-
- start = start || 0;
- end = !Ext.isDefined(end) ? Math.max(ns.length - 1, 0) : end;
- if(start <= end){
- for(i = start; i <= end && ns[i]; i++){
- nodes.push(ns[i]);
- }
- } else{
- for(i = start; i >= end && ns[i]; i--){
- nodes.push(ns[i]);
- }
- }
- return nodes;
- },
-
- /**
- * Finds the index of the passed node.
- * @param {HTMLElement/String/Number/Record} nodeInfo An HTMLElement template node, index of a template node, the id of a template node
- * or a record associated with a node.
- * @return {Number} The index of the node or -1
- */
- indexOf : function(node){
- node = this.getNode(node);
- if(Ext.isNumber(node.viewIndex)){
- return node.viewIndex;
- }
- return this.all.indexOf(node);
- },
-
- // private
- onBeforeLoad : function(){
- if(this.loadingText){
- this.clearSelections(false, true);
- this.getTemplateTarget().update(''+this.loadingText+'');
- this.all.clear();
- }
- },
-
- onDestroy : function(){
- this.all.clear();
- this.selected.clear();
- Ext.DataView.superclass.onDestroy.call(this);
- this.bindStore(null);
- }
-});
-
-/**
- * Changes the data store bound to this view and refreshes it. (deprecated in favor of bindStore)
- * @param {Store} store The store to bind to this view
- */
-Ext.DataView.prototype.setStore = Ext.DataView.prototype.bindStore;
-
-Ext.reg('dataview', Ext.DataView);
-
-
-
\ No newline at end of file