From ea346a785dc1b3f7c156f6fc33da634e1f1a627b Mon Sep 17 00:00:00 2001 From: Chris Schlaeger Date: Tue, 12 Aug 2014 21:56:44 +0200 Subject: Adding jquery, flot and openlayers to be included with the GEM. --- misc/openlayers/lib/OpenLayers/Animation.js | 102 ++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 misc/openlayers/lib/OpenLayers/Animation.js (limited to 'misc/openlayers/lib/OpenLayers/Animation.js') diff --git a/misc/openlayers/lib/OpenLayers/Animation.js b/misc/openlayers/lib/OpenLayers/Animation.js new file mode 100644 index 0000000..7b47a08 --- /dev/null +++ b/misc/openlayers/lib/OpenLayers/Animation.js @@ -0,0 +1,102 @@ +/* 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 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 + * . + */ + 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 . + * + * Parameters: + * id - {Number} Identifier returned from . + */ + function stop(id) { + delete loops[id]; + } + + return { + isNative: isNative, + requestFrame: requestFrame, + start: start, + stop: stop + }; + +})(window); -- cgit v1.2.3