Diffstat (limited to 'frontend/beta/js/YUI-extensions/grid/AbstractColumnModel.js') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | frontend/beta/js/YUI-extensions/grid/AbstractColumnModel.js | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/frontend/beta/js/YUI-extensions/grid/AbstractColumnModel.js b/frontend/beta/js/YUI-extensions/grid/AbstractColumnModel.js new file mode 100644 index 0000000..1f93590 --- a/dev/null +++ b/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 '';
+ }
+};
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