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Diffstat (limited to 'misc/openlayers/lib/OpenLayers/Animation.js')
-rw-r--r-- | misc/openlayers/lib/OpenLayers/Animation.js | 102 |
1 files changed, 0 insertions, 102 deletions
diff --git a/misc/openlayers/lib/OpenLayers/Animation.js b/misc/openlayers/lib/OpenLayers/Animation.js deleted file mode 100644 index 7b47a08..0000000 --- a/misc/openlayers/lib/OpenLayers/Animation.js +++ /dev/null @@ -1,102 +0,0 @@ -/* Copyright (c) 2006-2013 by OpenLayers Contributors (see authors.txt for - * full list of contributors). Published under the 2-clause BSD license. - * See license.txt in the OpenLayers distribution or repository for the - * full text of the license. */ - -/** - * @requires OpenLayers/SingleFile.js - * @requires OpenLayers/Util/vendorPrefix.js - */ - -/** - * Namespace: OpenLayers.Animation - * A collection of utility functions for executing methods that repaint a - * portion of the browser window. These methods take advantage of the - * browser's scheduled repaints where requestAnimationFrame is available. - */ -OpenLayers.Animation = (function(window) { - - /** - * Property: isNative - * {Boolean} true if a native requestAnimationFrame function is available - */ - var requestAnimationFrame = OpenLayers.Util.vendorPrefix.js(window, "requestAnimationFrame"); - var isNative = !!(requestAnimationFrame); - - /** - * Function: requestFrame - * Schedule a function to be called at the next available animation frame. - * Uses the native method where available. Where requestAnimationFrame is - * not available, setTimeout will be called with a 16ms delay. - * - * Parameters: - * callback - {Function} The function to be called at the next animation frame. - * element - {DOMElement} Optional element that visually bounds the animation. - */ - var requestFrame = (function() { - var request = window[requestAnimationFrame] || - function(callback, element) { - window.setTimeout(callback, 16); - }; - // bind to window to avoid illegal invocation of native function - return function(callback, element) { - request.apply(window, [callback, element]); - }; - })(); - - // private variables for animation loops - var counter = 0; - var loops = {}; - - /** - * Function: start - * Executes a method with <requestFrame> in series for some - * duration. - * - * Parameters: - * callback - {Function} The function to be called at the next animation frame. - * duration - {Number} Optional duration for the loop. If not provided, the - * animation loop will execute indefinitely. - * element - {DOMElement} Optional element that visually bounds the animation. - * - * Returns: - * {Number} Identifier for the animation loop. Used to stop animations with - * <stop>. - */ - function start(callback, duration, element) { - duration = duration > 0 ? duration : Number.POSITIVE_INFINITY; - var id = ++counter; - var start = +new Date; - loops[id] = function() { - if (loops[id] && +new Date - start <= duration) { - callback(); - if (loops[id]) { - requestFrame(loops[id], element); - } - } else { - delete loops[id]; - } - }; - requestFrame(loops[id], element); - return id; - } - - /** - * Function: stop - * Terminates an animation loop started with <start>. - * - * Parameters: - * id - {Number} Identifier returned from <start>. - */ - function stop(id) { - delete loops[id]; - } - - return { - isNative: isNative, - requestFrame: requestFrame, - start: start, - stop: stop - }; - -})(window); |