touch.md

util/touch

The util/touch module defines two simple extension events, tap and dbltap, for detecting the respective actions on touch devices. It also defines utility functions for handling touch events.

require([ 'dgrid/util/touch' ], function (touchUtil) {
    // Assume we have a Grid instance in the variable `grid`...
    grid.on(touchUtil.selector('.dgrid-content .dgrid-row', touchUtil.dbltap), function (event) {
        var row = grid.row(event);
        // Do something with `row` here in reaction to when it is double-tapped
    });
});

APIs

In addition to the tap and dbltap extension events, util/touch also defines the following functions.

Function Summary

Function	Description
countCurrentTouches(event, node)	Counts the number of currently active touches which fall within the given node; useful in cases where other handlers may call stopPropagation, thus affecting other means of counting touches.
selector(selector, eventType, children)	A version of the selector function from dojo/on, with an additional fix to work around issues experienced on iOS Safari. This is used by dgrid/Selection and dgrid/Tree for touch event handling.