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Versions: 31
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Stored size: 1.6 KB
Contents
sc_require("views/view");
SC.View.reopen(
/** @scope SC.View.prototype */ {
// ..........................................................
// MULTITOUCH SUPPORT
//
/**
Set to YES if you want to receive touch events for each distinct touch (rather than only
the first touch start and last touch end).
*/
acceptsMultitouch: NO,
/**
Is YES if the view is currently being touched. NO otherwise.
*/
hasTouch: NO,
/**
A boundary set of distances outside which the touch will not be considered "inside" the view anymore.
By default, up to 50px on each side.
*/
touchBoundary: { left: 50, right: 50, top: 50, bottom: 50 },
/**
@private
A computed property based on frame.
*/
_touchBoundaryFrame: function (){
return this.get("parentView").convertFrameToView(this.get('frame'), null);
}.property("frame", "parentView").cacheable(),
/**
Returns YES if the provided touch is within the boundary.
*/
touchIsInBoundary: function(touch) {
var f = this.get("_touchBoundaryFrame"), maxX = 0, maxY = 0, boundary = this.get("touchBoundary");
var x = touch.pageX, y = touch.pageY;
if (x < f.x) {
x = f.x - x;
maxX = boundary.left;
} else if (x > f.x + f.width) {
x = x - (f.x + f.width);
maxX = boundary.right;
} else {
x = 0;
maxX = 1;
}
if (y < f.y) {
y = f.y - y;
maxY = boundary.top;
} else if (y > f.y + f.height) {
y = y - (f.y + f.height);
maxY = boundary.bottom;
} else {
y = 0;
maxY = 1;
}
if (x > 100 || y > 100) return NO;
return YES;
}
});
Version data entries
31 entries across 31 versions & 2 rubygems