First version of the newly restructured repository

frontend/beta/js/YUI-extensions/grid/AbstractColumnModel.js

@@ -0,0 +1,131 @@
+/**
+ * @class YAHOO.ext.grid.AbstractColumnModel
+ * @extends YAHOO.ext.util.Observable
+ * This abstract class defines the ColumnModel interface and provides default implementations of the events required by the Grid. 
+ * @constructor
+*/
+YAHOO.ext.grid.AbstractColumnModel = function(){
+	// legacy events
+	this.onWidthChange = new YAHOO.util.CustomEvent('widthChanged');
+    this.onHeaderChange = new YAHOO.util.CustomEvent('headerChanged');
+	this.onHiddenChange = new YAHOO.util.CustomEvent('hiddenChanged');
+    
+    this.events = {
+        /**
+	     * @event widthchange
+	     * Fires when the width of a column changes
+	     * @param {ColumnModel} this
+	     * @param {Number} columnIndex The column index
+	     * @param {Number} newWidth The new width
+	     */
+	    'widthchange': this.onWidthChange,
+        /**
+	     * @event headerchange
+	     * Fires when the text of a header changes 
+	     * @param {ColumnModel} this
+	     * @param {Number} columnIndex The column index
+	     * @param {Number} newText The new header text
+	     */
+	    'headerchange': this.onHeaderChange,
+        /**
+	     * @event hiddenchange
+	     * Fires when a column is hidden or "unhidden"
+	     * @param {ColumnModel} this
+	     * @param {Number} columnIndex The column index
+	     * @param {Number} hidden true if hidden, false otherwise
+	     */
+	    'hiddenchange': this.onHiddenChange
+    };
+};
+
+YAHOO.ext.grid.AbstractColumnModel.prototype = {
+	fireEvent : YAHOO.ext.util.Observable.prototype.fireEvent,
+    on : YAHOO.ext.util.Observable.prototype.on,
+    addListener : YAHOO.ext.util.Observable.prototype.addListener,
+    delayedListener : YAHOO.ext.util.Observable.prototype.delayedListener,
+    removeListener : YAHOO.ext.util.Observable.prototype.removeListener,
+    purgeListeners : YAHOO.ext.util.Observable.prototype.purgeListeners,
+    bufferedListener : YAHOO.ext.util.Observable.prototype.bufferedListener,
+    
+    fireWidthChange : function(colIndex, newWidth){
+		this.onWidthChange.fireDirect(this, colIndex, newWidth);
+	},
+	
+	fireHeaderChange : function(colIndex, newHeader){
+		this.onHeaderChange.fireDirect(this, colIndex, newHeader);
+	},
+	
+	fireHiddenChange : function(colIndex, hidden){
+		this.onHiddenChange.fireDirect(this, colIndex, hidden);
+	},
+	
+	/**
+     * Interface method - Returns the number of columns.
+     * @return {Number}
+     */
+    getColumnCount : function(){
+        return 0;
+    },
+    
+    /**
+     * Interface method - Returns true if the specified column is sortable.
+     * @param {Number} col The column index
+     * @return {Boolean}
+     */
+    isSortable : function(col){
+        return false;
+    },
+    
+    /**
+     * Interface method - Returns true if the specified column is hidden.
+     * @param {Number} col The column index
+     * @return {Boolean}
+     */
+    isHidden : function(col){
+        return false;
+    },
+    
+    /**
+     * Interface method - Returns the sorting comparison function defined for the column (defaults to sortTypes.none).
+     * @param {Number} col The column index
+     * @return {Function}
+     */
+    getSortType : function(col){
+        return YAHOO.ext.grid.DefaultColumnModel.sortTypes.none;
+    },
+    
+    /**
+     * Interface method - Returns the rendering (formatting) function defined for the column.
+     * @param {Number} col The column index
+     * @return {Function}
+     */
+    getRenderer : function(col){
+        return YAHOO.ext.grid.DefaultColumnModel.defaultRenderer;
+    },
+    
+    /**
+     * Interface method - Returns the width for the specified column.
+     * @param {Number} col The column index
+     * @return {Number}
+     */
+    getColumnWidth : function(col){
+        return 0;
+    },
+    
+    /**
+     * Interface method - Returns the total width of all columns.
+     * @return {Number}
+     */
+    getTotalWidth : function(){
+        return 0;
+    },
+    
+    /**
+     * Interface method - Returns the header for the specified column.
+     * @param {Number} col The column index
+     * @return {String}
+     */
+    getColumnHeader : function(col){
+        return '';
+    }
+};