/**
* Browser independent utils
*
* @namespace
*/
Grape2D.utils = {
/**
* Gets the document size, or by other words the size of the screen,
* as an object with width and height properties.
* This is the maximum size of the "drawing surface".
*
* @return {!Object} the object with the width and height of the
* document
* @public
* @static
*/
getDocumentSize: function() {
return {
width: window.innerWidth,
height: window.innerHeight
};
},
/**
* Requests an animation frame.
*
* @param {!Function} fn Callback function.
* @return {!number} Request ID.
* @public
* @static
*/
requestAnimationFrame: function(fn){
if(Grape2D.NODE){
return Grape2D.WINDOW.requestAnimationFrame(fn);
}else{
return requestAnimationFrame(fn);
}
},
/**
* Cancels an animation frame request.
*
* @param {!number} op Animation frame request ID.
* @public
* @static
*
* @suppress {undefinedVars}
*/
cancelAnimationFrame: function(op){
if(Grape2D.NODE){
return Grape2D.WINDOW.cancelAnimationFrame(op);
}else{
return cancelAnimationFrame(op);
}
},
};