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javascript/yui/build/datatable/datatable-beta.js  view on Meta::CPAN

/////////////////////////////////////////////////////////////////////////////
//
// Public Custom Event Handlers
//
/////////////////////////////////////////////////////////////////////////////

/**
 * Overridable custom event handler to sort Column.
 *
 * @method onEventSortColumn
 * @param oArgs.event {HTMLEvent} Event object.
 * @param oArgs.target {HTMLElement} Target element.
 */
YAHOO.widget.DataTable.prototype.onEventSortColumn = function(oArgs) {
//TODO: support nested header column sorting
    var evt = oArgs.event;
    var target = oArgs.target;
    YAHOO.util.Event.stopEvent(evt);
    
    var el = this.getThEl(target) || this.getTdEl(target);
    if(el && YAHOO.lang.isNumber(el.yuiColumnId)) {
        this.sortColumn(this._oColumnSet.getColumn(el.yuiColumnId));
    }
    else {
    }
};

/**
 * Overridable custom event handler to manage selection according to desktop paradigm.
 *
 * @method onEventSelectRow
 * @param oArgs.event {HTMLEvent} Event object.
 * @param oArgs.target {HTMLElement} Target element.
 */
YAHOO.widget.DataTable.prototype.onEventSelectRow = function(oArgs) {
    var sMode = this.get("selectionMode");
    if ((sMode == "singlecell") || (sMode == "cellblock") || (sMode == "cellrange")) {
        return;
    }

    var evt = oArgs.event;
    var elTarget = oArgs.target;

    var bSHIFT = evt.shiftKey;
    var bCTRL = evt.ctrlKey;
    var i, nAnchorTrIndex;

    // Validate target row
    var elTargetRow = this.getTrEl(elTarget);
    if(elTargetRow) {
        var allRows = this._elTbody.rows;
        var nTargetTrIndex = elTargetRow.sectionRowIndex;
        var elAnchorRow = YAHOO.util.Dom.get(this._sSelectionAnchorId);
        
        // Both SHIFT and CTRL
        if((sMode != "single") && bSHIFT && bCTRL) {
            // Validate anchor row
            if(elAnchorRow && YAHOO.lang.isNumber(elAnchorRow.sectionRowIndex)) {
                nAnchorTrIndex = elAnchorRow.sectionRowIndex;
                if(this.isSelected(elAnchorRow)) {
                    // Select all rows between anchor row and target row, including target row
                    if(nAnchorTrIndex < nTargetTrIndex) {
                        for(i=nAnchorTrIndex+1; i<=nTargetTrIndex; i++) {
                            if(!this.isSelected(allRows[i])) {
                                this.selectRow(allRows[i]);
                            }
                        }
                    }
                    // Select all rows between target row and anchor row, including target row
                    else {
                        for(i=nAnchorTrIndex-1; i>=nTargetTrIndex; i--) {
                            if(!this.isSelected(allRows[i])) {
                                this.selectRow(allRows[i]);
                            }
                        }
                    }
                }
                else {
                    // Unselect all rows between anchor row and target row
                    if(nAnchorTrIndex < nTargetTrIndex) {
                        for(i=nAnchorTrIndex+1; i<=nTargetTrIndex-1; i++) {
                            if(this.isSelected(allRows[i])) {
                                this.unselectRow(allRows[i]);
                            }
                        }
                    }
                    // Unselect all rows between target row and anchor row
                    else {
                        for(i=nTargetTrIndex+1; i<=nAnchorTrIndex-1; i++) {