Grid.js
/**
* @class Ext.grid.Grid
* @extends Ext.util.Observable
* This class represents the primary interface of a component based grid control.
* <br><br>Usage:<pre><code>
var grid = new Ext.grid.Grid("my-container-id", {
ds: myDataStore,
cm: myColModel,
selModel: mySelectionModel,
autoSizeColumns: true,
monitorWindowResize: false,
trackMouseOver: true
});
// set any options
grid.render();
* </code></pre>
* <b>Common Problems:</b><br/>
* - Grid does not resize properly when going smaller: Setting overflow hidden on the container
* element will correct this<br/>
* - If you get el.style[camel]= NaNpx or -2px or something related, be certain you have given your container element
* dimensions. The grid adapts to your container's size, if your container has no size defined then the results
* are unpredictable.<br/>
* - Do not render the grid into an element with display:none. Try using visibility:hidden. Otherwise there is no way for the
* grid to calculate dimensions/offsets.<br/>
* @constructor
* @param {String/HTMLElement/Ext.Element} container The element into which this grid will be rendered -
* The container MUST have some type of size defined for the grid to fill. The container will be
* automatically set to position relative if it isn't already.
* @param {Object} config A config object that sets properties on this grid.
*/
Ext.grid.Grid = function(container, config){
// initialize the container
this.container = Ext.get(container);
this.container.update("");
this.container.setStyle("overflow", "hidden");
this.container.addClass('x-grid-container');
this.id = this.container.id;
Ext.apply(this, config);
// check and correct shorthanded configs
if(this.ds){
this.dataSource = this.ds;
delete this.ds;
}
if(this.cm){
this.colModel = this.cm;
delete this.cm;
}
if(this.sm){
this.selModel = this.sm;
delete this.sm;
}
if(this.width){
this.container.setWidth(this.width);
}
if(this.height){
this.container.setHeight(this.height);
}
/** @private */
this.addEvents({
// raw events
/**
* @event click
* The raw click event for the entire grid.
* @param {Ext.EventObject} e
*/
"click" : true,
/**
* @event dblclick
* The raw dblclick event for the entire grid.
* @param {Ext.EventObject} e
*/
"dblclick" : true,
/**
* @event contextmenu
* The raw contextmenu event for the entire grid.
* @param {Ext.EventObject} e
*/
"contextmenu" : true,
/**
* @event mousedown
* The raw mousedown event for the entire grid.
* @param {Ext.EventObject} e
*/
"mousedown" : true,
/**
* @event mouseup
* The raw mouseup event for the entire grid.
* @param {Ext.EventObject} e
*/
"mouseup" : true,
/**
* @event mouseover
* The raw mouseover event for the entire grid.
* @param {Ext.EventObject} e
*/
"mouseover" : true,
/**
* @event mouseout
* The raw mouseout event for the entire grid.
* @param {Ext.EventObject} e
*/
"mouseout" : true,
/**
* @event keypress
* The raw keypress event for the entire grid.
* @param {Ext.EventObject} e
*/
"keypress" : true,
/**
* @event keydown
* The raw keydown event for the entire grid.
* @param {Ext.EventObject} e
*/
"keydown" : true,
// custom events
/**
* @event cellclick
* Fires when a cell is clicked
* @param {Grid} this
* @param {Number} rowIndex
* @param {Number} columnIndex
* @param {Ext.EventObject} e
*/
"cellclick" : true,
/**
* @event celldblclick
* Fires when a cell is double clicked
* @param {Grid} this
* @param {Number} rowIndex
* @param {Number} columnIndex
* @param {Ext.EventObject} e
*/
"celldblclick" : true,
/**
* @event rowclick
* Fires when a row is clicked
* @param {Grid} this
* @param {Number} rowIndex
* @param {Ext.EventObject} e
*/
"rowclick" : true,
/**
* @event rowdblclick
* Fires when a row is double clicked
* @param {Grid} this
* @param {Number} rowIndex
* @param {Ext.EventObject} e
*/
"rowdblclick" : true,
/**
* @event headerclick
* Fires when a header is clicked
* @param {Grid} this
* @param {Number} columnIndex
* @param {Ext.EventObject} e
*/
"headerclick" : true,
/**
* @event headerdblclick
* Fires when a header cell is double clicked
* @param {Grid} this
* @param {Number} rowIndex
* @param {Number} columnIndex
* @param {Ext.EventObject} e
*/
"headerdblclick" : true,
/**
* @event rowcontextmenu
* Fires when a row is right clicked
* @param {Grid} this
* @param {Number} rowIndex
* @param {Ext.EventObject} e
*/
"rowcontextmenu" : true,
/**
* @event cellcontextmenu
* Fires when a cell is right clicked
* @param {Grid} this
* @param {Number} rowIndex
* @param {Number} cellIndex
* @param {Ext.EventObject} e
*/
"cellcontextmenu" : true,
/**
* @event headercontextmenu
* Fires when a header is right clicked
* @param {Grid} this
* @param {Number} columnIndex
* @param {Ext.EventObject} e
*/
"headercontextmenu" : true,
/**
* @event bodyscroll
* Fires when the body element is scrolled
* @param {Number} scrollLeft
* @param {Number} scrollTop
*/
"bodyscroll" : true,
/**
* @event columnresize
* Fires when the user resizes a column
* @param {Number} columnIndex
* @param {Number} newSize
*/
"columnresize" : true,
/**
* @event columnmove
* Fires when the user moves a column
* @param {Number} oldIndex
* @param {Number} newIndex
*/
"columnmove" : true,
/**
* @event startdrag
* Fires when row(s) start being dragged
* @param {Grid} this
* @param {Ext.GridDD} dd The drag drop object
* @param {event} e The raw browser event
*/
"startdrag" : true,
/**
* @event enddrag
* Fires when a drag operation is complete
* @param {Grid} this
* @param {Ext.GridDD} dd The drag drop object
* @param {event} e The raw browser event
*/
"enddrag" : true,
/**
* @event dragdrop
* Fires when dragged row(s) are dropped on a valid DD target
* @param {Grid} this
* @param {Ext.GridDD} dd The drag drop object
* @param {String} targetId The target drag drop object
* @param {event} e The raw browser event
*/
"dragdrop" : true,
/**
* @event dragover
* Fires while row(s) are being dragged. "targetId" is the id of the Yahoo.util.DD object the selected rows are being dragged over.
* @param {Grid} this
* @param {Ext.GridDD} dd The drag drop object
* @param {String} targetId The target drag drop object
* @param {event} e The raw browser event
*/
"dragover" : true,
/**
* @event dragenter
* Fires when the dragged row(s) first cross another DD target while being dragged
* @param {Grid} this
* @param {Ext.GridDD} dd The drag drop object
* @param {String} targetId The target drag drop object
* @param {event} e The raw browser event
*/
"dragenter" : true,
/**
* @event dragout
* Fires when the dragged row(s) leave another DD target while being dragged
* @param {Grid} this
* @param {Ext.GridDD} dd The drag drop object
* @param {String} targetId The target drag drop object
* @param {event} e The raw browser event
*/
"dragout" : true
});
Ext.grid.Grid.superclass.constructor.call(this);
};
Ext.extend(Ext.grid.Grid, Ext.util.Observable, {
/**
* @cfg {Number} The minimum width a column can be resized to. Defaults to 25.
*/
minColumnWidth : 25,
/**
* @cfg {Boolean} True to automatically resize the columns to fit their content
* <b>on initial render.</b> It is more efficient to explicitly size the columns
* through the ColumnModel's {@link Ext.grid.ColumnModel#width} config option.
*/
autoSizeColumns : false,
/**
* @cfg {Boolean} True to measure headers with column data when auto sizing columns.
*/
autoSizeHeaders : true,
/**
* @cfg {Boolean} True to autoSize the grid when the window resizes. Defaults to true.
*/
monitorWindowResize : true,
/**
* @cfg {Boolean} If autoSizeColumns is on, maxRowsToMeasure can be used to limit the number of
* rows measured to get a columns size - defaults to 0 (all rows).
*/
maxRowsToMeasure : 0,
/**
* @cfg {Boolean} True to highlight rows when the mouse is over. Default is false.
*/
trackMouseOver : true,
/**
* @cfg {Boolean} True to enable drag and drop of rows.
*/
enableDragDrop : false,
/**
* @cfg {Boolean} True to enable drag and drop reorder of columns.
*/
enableColumnMove : true,
/**
* @cfg {Boolean} True to enable hiding of columns with the header context menu.
*/
enableColumnHide : true,
/**
* @cfg {Boolean} True to manually sync row heights across locked and not locked rows.
*/
enableRowHeightSync : false,
/**
* @cfg {Boolean} True to stripe the rows. Default is true.
*/
stripeRows : true,
/**
* @cfg {Boolean} True to fit the height of the grid container to the height of the data. Defaults to false.
*/
autoHeight : false,
/**
* @cfg {String} The id of a column in this grid that should expand to fill unused space.
*/
autoExpandColumn : false,
/**
* @cfg {Number} The minimum width the autoExpandColumn can have (if enabled).
* defaults to 50.
*/
autoExpandMin : 50,
/**
* @cfg {Number} The maximum width the autoExpandColumn can have (if enabled). Defaults to 1000.
*/
autoExpandMax : 1000,
/**
* @cfg {Object} The {@link Ext.grid.GridView} used by the grid. This can be set before a call to render().
*/
view : null,
/**
* @cfg {Object} A javascript RegExp defining tagNames
* allowed to have text selection (Defaults to <code>/INPUT|TEXTAREA|SELECT/i</code>).
*/
allowTextSelectionPattern : /INPUT|TEXTAREA|SELECT/i,
/**
* @cfg {Object} An {@link Ext.LoadMask} config or true to mask the grid while loading (defaults to false).
*/
loadMask : false,
// private
rendered : false,
/**
* Sets the maximum height of the grid - ignored if autoHeight is not on.
* @type Number
*/
// holder
/***
* Called once after all setup has been completed and the grid is ready to be rendered.
* @return {Ext.grid.Grid} this
*/
render : function(){
var c = this.container;
// try to detect autoHeight/width mode
if((!c.dom.offsetHeight || c.dom.offsetHeight < 20) || c.getStyle("height") == "auto"){
this.autoHeight = true;
}
var view = this.getView();
view.init(this);
c.on("click", this.onClick, this);
c.on("dblclick", this.onDblClick, this);
c.on("contextmenu", this.onContextMenu, this);
c.on("keydown", this.onKeyDown, this);
this.relayEvents(c, ["mousedown","mouseup","mouseover","mouseout","keypress"]);
this.getSelectionModel().init(this);
view.render();
if(this.loadMask){
this.loadMask = new Ext.LoadMask(this.container,
Ext.apply({store:this.dataSource}, this.loadMask));
}
this.rendered = true;
return this;
},
reconfigure : function(dataSource, colModel){
if(this.loadMask){
this.loadMask.destroy();
this.loadMask = new Ext.LoadMask(this.container,
Ext.apply({store:dataSource}, this.loadMask));
}
this.view.bind(dataSource, colModel);
this.dataSource = dataSource;
this.colModel = colModel;
this.view.refresh(true);
},
onKeyDown : function(e){
this.fireEvent("keydown", e);
},
/**
* Destroy this grid.
* @param {Boolean} removeEl True to remove the element
*/
destroy : function(removeEl, keepListeners){
if(this.loadMask){
this.loadMask.destroy();
}
var c = this.container;
c.removeAllListeners();
this.view.destroy();
this.colModel.purgeListeners();
if(!keepListeners){
this.purgeListeners();
}
c.update("");
if(removeEl === true){
c.remove();
}
},
// private
processEvent : function(name, e){
this.fireEvent(name, e);
var t = e.getTarget();
var v = this.view;
var header = v.findHeaderIndex(t);
if(header !== false){
this.fireEvent("header" + name, this, header, e);
}else{
var row = v.findRowIndex(t);
var cell = v.findCellIndex(t);
if(row !== false){
this.fireEvent("row" + name, this, row, e);
if(cell !== false){
this.fireEvent("cell" + name, this, row, cell, e);
}
}
}
},
// private
onClick : function(e){
this.processEvent("click", e);
},
// private
onContextMenu : function(e, t){
this.processEvent("contextmenu", e);
},
// private
onDblClick : function(e){
this.processEvent("dblclick", e);
},
walkCells : function(row, col, step, fn, scope){
var cm = this.colModel, clen = cm.getColumnCount();
var ds = this.dataSource, rlen = ds.getCount(), first = true;
if(step < 0){
if(col < 0){
row--;
first = false;
}
while(row >= 0){
if(!first){
col = clen-1;
}
first = false;
while(col >= 0){
if(fn.call(scope || this, row, col, cm) === true){
return [row, col];
}
col--;
}
row--;
}
} else {
if(col >= clen){
row++;
first = false;
}
while(row < rlen){
if(!first){
col = 0;
}
first = false;
while(col < clen){
if(fn.call(scope || this, row, col, cm) === true){
return [row, col];
}
col++;
}
row++;
}
}
return null;
},
getSelections : function(){
return this.selModel.getSelections();
},
/**
* Causes the grid to manually recalculate its dimensions. Generally this is done automatically,
* but if manual update is required this method will initiate it.
*/
autoSize : function(){
if(this.rendered){
this.view.layout();
if(this.view.adjustForScroll){
this.view.adjustForScroll();
}
}
},
// private for compatibility, overridden by editor grid
stopEditing : function(){},
/**
* Returns the grid's SelectionModel.
* @return {SelectionModel}
*/
getSelectionModel : function(){
if(!this.selModel){
this.selModel = new Ext.grid.RowSelectionModel();
}
return this.selModel;
},
/**
* Returns the grid's DataSource.
* @return {DataSource}
*/
getDataSource : function(){
return this.dataSource;
},
/**
* Returns the grid's ColumnModel.
* @return {ColumnModel}
*/
getColumnModel : function(){
return this.colModel;
},
/**
* Returns the grid's GridView object.
* @return {GridView}
*/
getView : function(){
if(!this.view){
this.view = new Ext.grid.GridView();
}
return this.view;
},
/**
* Called to get grid's drag proxy text, by default returns this.ddText.
* @return {String}
*/
getDragDropText : function(){
var count = this.selModel.getCount();
return String.format(this.ddText, count, count == 1 ? '' : 's');
}
});
/**
* Configures the text is the drag proxy (defaults to "%0 selected row(s)").
* %0 is replaced with the number of selected rows.
* @type String
*/
Ext.grid.Grid.prototype.ddText = "{0} selected row{1}";
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