Diffstat (limited to 'frontend/beta/js/YUI-extensions/data/DefaultDataModel.js') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | frontend/beta/js/YUI-extensions/data/DefaultDataModel.js | 339 |
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diff --git a/frontend/beta/js/YUI-extensions/data/DefaultDataModel.js b/frontend/beta/js/YUI-extensions/data/DefaultDataModel.js new file mode 100644 index 0000000..57a022a --- a/dev/null +++ b/frontend/beta/js/YUI-extensions/data/DefaultDataModel.js @@ -0,0 +1,339 @@ +
+/**
+ * @class YAHOO.ext.grid.DefaultDataModel
+ * This is the default implementation of a DataModel used by the Grid. It works
+ * with multi-dimensional array based data. Using the event system in the base class
+ * {@link YAHOO.ext.grid.AbstractDataModel}, all updates to this DataModel are automatically
+ * reflected in the user interface.
+ * <br>Usage:<br>
+ * <pre><code>
+ * var myData = [
+ ["MSFT","Microsoft Corporation", "314,571.156", "32,187.000", "55000"],
+ ["ORCL", "Oracle Corporation", "62,615.266", "9,519.000", "40650"]
+ * ];
+ * var dataModel = new YAHOO.ext.grid.DefaultDataModel(myData);
+ * </code></pre>
+ * @extends YAHOO.ext.grid.AbstractDataModel
+ * @constructor
+ * @param {Array} data
+*/
+YAHOO.ext.grid.DefaultDataModel = function(data){
+ YAHOO.ext.grid.DefaultDataModel.superclass.constructor.call(this);
+ /**@private*/
+ this.data = data;
+};
+YAHOO.extendX(YAHOO.ext.grid.DefaultDataModel, YAHOO.ext.grid.AbstractDataModel, {
+ /**
+ * Returns the number of rows in the dataset
+ * @return {Number}
+ */
+ getRowCount : function(){
+ return this.data.length;
+ },
+
+ /**
+ * Returns the ID of the specified row. By default it return the value of the first column.
+ * Override to provide more advanced ID handling.
+ * @return {Number}
+ */
+ getRowId : function(rowIndex){
+ return this.data[rowIndex][0];
+ },
+
+ /**
+ * Returns the column data for the specified row.
+ * @return {Array}
+ */
+ getRow : function(rowIndex){
+ return this.data[rowIndex];
+ },
+
+ /**
+ * Returns the column data for the specified rows as a
+ * multi-dimensional array: rows[3][0] would give you the value of row 4, column 0.
+ * @param {Array} indexes The row indexes to fetch
+ * @return {Array}
+ */
+ getRows : function(indexes){
+ var data = this.data;
+ var r = [];
+ for(var i = 0; i < indexes.length; i++){
+ r.push(data[indexes[i]]);
+ }
+ return r;
+ },
+
+ /**
+ * Returns the value at the specified data position
+ * @param {Number} rowIndex
+ * @param {Number} colIndex
+ * @return {Object}
+ */
+ getValueAt : function(rowIndex, colIndex){
+ return this.data[rowIndex][colIndex];
+ },
+
+ /**
+ * Sets the specified value at the specified data position
+ * @param {Object} value The new value
+ * @param {Number} rowIndex
+ * @param {Number} colIndex
+ */
+ setValueAt: function(value, rowIndex, colIndex){
+ this.data[rowIndex][colIndex] = value;
+ this.fireCellUpdated(rowIndex, colIndex);
+ },
+
+ /**
+ * @private
+ * Removes the specified range of rows.
+ * @param {Number} startIndex
+ * @param {<i>Number</i>} endIndex (optional) Defaults to startIndex
+ */
+ removeRows: function(startIndex, endIndex){
+ endIndex = endIndex || startIndex;
+ this.data.splice(startIndex, endIndex-startIndex+1);
+ this.fireRowsDeleted(startIndex, endIndex);
+ },
+
+ /**
+ * Remove a row.
+ * @param {Number} index
+ */
+ removeRow: function(index){
+ this.data.splice(index, 1);
+ this.fireRowsDeleted(index, index);
+ },
+
+ /**
+ * @private
+ * Removes all rows.
+ */
+ removeAll: function(){
+ var count = this.getRowCount();
+ if(count > 0){
+ this.removeRows(0, count-1);
+ }
+ },
+
+ /**
+ * Query the DataModel rows by the filters defined in spec, for example...
+ * <pre><code>
+ * // column 1 starts with Jack, column 2 filtered by myFcn, column 3 equals 'Fred'
+ * dataModel.filter({1: /^Jack.+/i}, 2: myFcn, 3: 'Fred'});
+ * </code></pre>
+ * @param {Object} spec The spec is generally an object literal consisting of
+ * column index and filter type. The filter type can be a string/number (exact match),
+ * a regular expression to test using String.search() or a function to call. If it's a function,
+ * it will be called with the value for the specified column and an array of the all column
+ * values for that row: yourFcn(value, columnData). If it returns anything other than true,
+ * the row is not a match. If you have modified Object.prototype this method may fail.
+ * @param {Boolean} returnUnmatched True to return rows which <b>don't</b> match the query instead
+ * of rows that do match
+ * @return {Array} An array of row indexes that match
+ */
+ query: function(spec, returnUnmatched){
+ var d = this.data;
+ var r = [];
+ for(var i = 0; i < d.length; i++){
+ var row = d[i];
+ var isMatch = true;
+ for(var col in spec){
+ //if(typeof spec[col] != 'function'){
+ if(!isMatch) continue;
+ var filter = spec[col];
+ switch(typeof filter){
+ case 'string':
+ case 'number':
+ case 'boolean':
+ if(row[col] != filter){
+ isMatch = false;
+ }
+ break;
+ case 'function':
+ if(!filter(row[col], row)){
+ isMatch = false;
+ }
+ break;
+ case 'object':
+ if(filter instanceof RegExp){
+ if(String(row[col]).search(filter) === -1){
+ isMatch = false;
+ }
+ }
+ break;
+ }
+ //}
+ }
+ if(isMatch && !returnUnmatched){
+ r.push(i);
+ }else if(!isMatch && returnUnmatched){
+ r.push(i);
+ }
+ }
+ return r;
+ },
+
+ /**
+ * Filter the DataModel rows by the query defined in spec, see {@link #query} for more details
+ * on the query spec.
+ * @param {Object} query The query spec {@link #query}
+ * @return {Number} The number of rows removed
+ */
+ filter: function(query){
+ var matches = this.query(query, true);
+ var data = this.data;
+ // go thru the data setting matches to deleted
+ // while not disturbing row indexes
+ for(var i = 0; i < matches.length; i++){
+ data[matches[i]]._deleted = true;
+ }
+ for(var i = 0; i < data.length; i++){
+ while(data[i] && data[i]._deleted === true){
+ this.removeRow(i);
+ }
+ }
+ return matches.length;
+ },
+
+ /**
+ * Adds a row to the dataset.
+ * @param {Array} cellValues The array of values for the new row
+ * @return {Number} The index of the added row
+ */
+ addRow: function(cellValues){
+ this.data.push(cellValues);
+ var newIndex = this.data.length-1;
+ this.fireRowsInserted(newIndex, newIndex);
+ this.applySort();
+ return newIndex;
+ },
+
+ /**
+ * @private
+ * Adds a set of rows.
+ * @param {Array} rowData This should be an array of arrays like the constructor takes
+ */
+ addRows: function(rowData){
+ this.data = this.data.concat(rowData);
+ var firstIndex = this.data.length-rowData.length;
+ this.fireRowsInserted(firstIndex, firstIndex+rowData.length-1);
+ this.applySort();
+ },
+
+ /**
+ * Inserts a row a the specified location in the dataset.
+ * @param {Number} index The index where the row should be inserted
+ * @param {Array} cellValues The array of values for the new row
+ * @return {Number} The index the row was inserted in
+ */
+ insertRow: function(index, cellValues){
+ this.data.splice(index, 0, cellValues);
+ this.fireRowsInserted(index, index);
+ this.applySort();
+ return index;
+ },
+
+ /**
+ * @private
+ * Inserts a set of rows.
+ * @param {Number} index The index where the rows should be inserted
+ * @param {Array} rowData This should be an array of arrays like the constructor takes
+ */
+ insertRows: function(index, rowData){
+ /*
+ if(index == this.data.length){ // try these two first since they are faster
+ this.data = this.data.concat(rowData);
+ }else if(index == 0){
+ this.data = rowData.concat(this.data);
+ }else{
+ var newData = this.data.slice(0, index);
+ newData.concat(rowData);
+ newData.concat(this.data.slice(index));
+ this.data = newData;
+ }*/
+ var args = rowData.concat();
+ args.splice(0, 0, index, 0);
+ this.data.splice.apply(this.data, args);
+ this.fireRowsInserted(index, index+rowData.length-1);
+ this.applySort();
+ },
+
+ /**
+ * Applies the last used sort to the current data.
+ */
+ applySort: function(suppressEvent){
+ if(typeof this.sortColumn != 'undefined'){
+ this.sort(this.sortInfo, this.sortColumn, this.sortDir, suppressEvent);
+ }
+ },
+
+ /**
+ * Sets the default sort info. Note: this function does not actually apply the sort.
+ * @param {Function/Object} sortInfo A sort comparison function or null to use the default or A object that has a method getSortType(index) that returns a function like
+ * a grid column model.
+ * @param {Number} columnIndex The column index to sort by
+ * @param {String} direction The direction of the sort ('DESC' or 'ASC')
+ */
+ setDefaultSort: function(sortInfo, columnIndex, direction){
+ this.sortInfo = sortInfo;
+ this.sortColumn = columnIndex;
+ this.sortDir = direction;
+ },
+ /**
+ * Sorts the data by the specified column - Uses the sortType specified for the column in the passed columnModel.
+ * @param {Function/Object} sortInfo A sort comparison function or null to use the default or A object that has a method getSortType(index) that returns a function like
+ * a grid column model.
+ * @param {Number} columnIndex The column index to sort by
+ * @param {String} direction The direction of the sort ('DESC' or 'ASC')
+ */
+ sort: function(sortInfo, columnIndex, direction, suppressEvent){
+ // store these so we can maintain sorting when we load new data
+ this.sortInfo = sortInfo;
+ this.sortColumn = columnIndex;
+ this.sortDir = direction;
+
+ var dsc = (direction && direction.toUpperCase() == 'DESC');
+ var sortType = null;
+ if(sortInfo != null){
+ if(typeof sortInfo == 'function'){
+ sortType = sortInfo;
+ }else if(typeof sortInfo == 'object'){
+ sortType = sortInfo.getSortType(columnIndex);;
+ }
+ }
+ var fn = function(cells, cells2){
+ var v1 = sortType ? sortType(cells[columnIndex], cells) : cells[columnIndex];
+ var v2 = sortType ? sortType(cells2[columnIndex], cells2) : cells2[columnIndex];
+ if(v1 < v2)
+ return dsc ? +1 : -1;
+ if(v1 > v2)
+ return dsc ? -1 : +1;
+ return 0;
+ };
+ this.data.sort(fn);
+ if(!suppressEvent){
+ this.fireRowsSorted(columnIndex, direction);
+ }
+ },
+
+ /**
+ * Calls passed function with each rows data - if the function returns false it stops.
+ * @param {Function} fn
+ * @param {Object} scope (optional)
+ */
+ each: function(fn, scope){
+ var d = this.data;
+ for(var i = 0, len = d.length; i < len; i++){
+ if(fn.call(scope || window, d[i], i) === false) break;
+ }
+ }
+});
+
+/**
+ * Alias to YAHOO.ext.grid.DefaultColumnModel.sortTypes
+ * @static
+ */
+if(YAHOO.ext.grid.DefaultColumnModel){
+ YAHOO.ext.grid.DefaultDataModel.sortTypes = YAHOO.ext.grid.DefaultColumnModel.sortTypes;
+} |