diff options
Diffstat (limited to 'contexts/data/lib/closure-library/closure/goog/fx/anim/anim.js')
-rw-r--r-- | contexts/data/lib/closure-library/closure/goog/fx/anim/anim.js | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/contexts/data/lib/closure-library/closure/goog/fx/anim/anim.js b/contexts/data/lib/closure-library/closure/goog/fx/anim/anim.js deleted file mode 100644 index d0444e7..0000000 --- a/contexts/data/lib/closure-library/closure/goog/fx/anim/anim.js +++ /dev/null @@ -1,209 +0,0 @@ -// Copyright 2006 The Closure Library Authors. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS-IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -/** - * @fileoverview Basic animation controls. - * - */ -goog.provide('goog.fx.anim'); -goog.provide('goog.fx.anim.Animated'); - -goog.require('goog.async.AnimationDelay'); -goog.require('goog.async.Delay'); -goog.require('goog.object'); - - -/** - * An interface for programatically animated objects. I.e. rendered in - * javascript frame by frame. - * - * @interface - */ -goog.fx.anim.Animated = function() {}; - - -/** - * Function called when a frame is requested for the animation. - * - * @param {number} now Current time in milliseconds. - */ -goog.fx.anim.Animated.prototype.onAnimationFrame; - - -/** - * Default wait timeout for animations (in milliseconds). Only used for timed - * animation, which uses a timer (setTimeout) to schedule animation. - * - * @type {number} - * @const - */ -goog.fx.anim.TIMEOUT = goog.async.AnimationDelay.TIMEOUT; - - -/** - * A map of animations which should be cycled on the global timer. - * - * @type {Object.<number, goog.fx.anim.Animated>} - * @private - */ -goog.fx.anim.activeAnimations_ = {}; - - -/** - * An optional animation window. - * @type {Window} - * @private - */ -goog.fx.anim.animationWindow_ = null; - - -/** - * An interval ID for the global timer or event handler uid. - * @type {goog.async.Delay|goog.async.AnimationDelay} - * @private - */ -goog.fx.anim.animationDelay_ = null; - - -/** - * Registers an animation to be cycled on the global timer. - * @param {goog.fx.anim.Animated} animation The animation to register. - */ -goog.fx.anim.registerAnimation = function(animation) { - var uid = goog.getUid(animation); - if (!(uid in goog.fx.anim.activeAnimations_)) { - goog.fx.anim.activeAnimations_[uid] = animation; - } - - // If the timer is not already started, start it now. - goog.fx.anim.requestAnimationFrame_(); -}; - - -/** - * Removes an animation from the list of animations which are cycled on the - * global timer. - * @param {goog.fx.anim.Animated} animation The animation to unregister. - */ -goog.fx.anim.unregisterAnimation = function(animation) { - var uid = goog.getUid(animation); - delete goog.fx.anim.activeAnimations_[uid]; - - // If a timer is running and we no longer have any active timers we stop the - // timers. - if (goog.object.isEmpty(goog.fx.anim.activeAnimations_)) { - goog.fx.anim.cancelAnimationFrame_(); - } -}; - - -/** - * Tears down this module. Useful for testing. - */ -// TODO(nicksantos): Wow, this api is pretty broken. This should be fixed. -goog.fx.anim.tearDown = function() { - goog.fx.anim.animationWindow_ = null; - goog.dispose(goog.fx.anim.animationDelay_); - goog.fx.anim.animationDelay_ = null; - goog.fx.anim.activeAnimations_ = {}; -}; - - -/** - * Registers an animation window. This allows usage of the timing control API - * for animations. Note that this window must be visible, as non-visible - * windows can potentially stop animating. This window does not necessarily - * need to be the window inside which animation occurs, but must remain visible. - * See: https://developer.mozilla.org/en/DOM/window.mozRequestAnimationFrame. - * - * @param {Window} animationWindow The window in which to animate elements. - */ -goog.fx.anim.setAnimationWindow = function(animationWindow) { - // If a timer is currently running, reset it and restart with new functions - // after a timeout. This is to avoid mismatching timer UIDs if we change the - // animation window during a running animation. - // - // In practice this cannot happen before some animation window and timer - // control functions has already been set. - var hasTimer = - goog.fx.anim.animationDelay_ && goog.fx.anim.animationDelay_.isActive(); - - goog.dispose(goog.fx.anim.animationDelay_); - goog.fx.anim.animationDelay_ = null; - goog.fx.anim.animationWindow_ = animationWindow; - - // If the timer was running, start it again. - if (hasTimer) { - goog.fx.anim.requestAnimationFrame_(); - } -}; - - -/** - * Requests an animation frame based on the requestAnimationFrame and - * cancelRequestAnimationFrame function pair. - * @private - */ -goog.fx.anim.requestAnimationFrame_ = function() { - if (!goog.fx.anim.animationDelay_) { - // We cannot guarantee that the global window will be one that fires - // requestAnimationFrame events (consider off-screen chrome extension - // windows). Default to use goog.async.Delay, unless - // the client has explicitly set an animation window. - if (goog.fx.anim.animationWindow_) { - // requestAnimationFrame will call cycleAnimations_ with the current - // time in ms, as returned from goog.now(). - goog.fx.anim.animationDelay_ = new goog.async.AnimationDelay( - function(now) { - goog.fx.anim.cycleAnimations_(now); - }, goog.fx.anim.animationWindow_); - } else { - goog.fx.anim.animationDelay_ = new goog.async.Delay(function() { - goog.fx.anim.cycleAnimations_(goog.now()); - }, goog.fx.anim.TIMEOUT); - } - } - - var delay = goog.fx.anim.animationDelay_; - if (!delay.isActive()) { - delay.start(); - } -}; - - -/** - * Cancels an animation frame created by requestAnimationFrame_(). - * @private - */ -goog.fx.anim.cancelAnimationFrame_ = function() { - if (goog.fx.anim.animationDelay_) { - goog.fx.anim.animationDelay_.stop(); - } -}; - - -/** - * Cycles through all registered animations. - * @param {number} now Current time in milliseconds. - * @private - */ -goog.fx.anim.cycleAnimations_ = function(now) { - goog.object.forEach(goog.fx.anim.activeAnimations_, function(anim) { - anim.onAnimationFrame(now); - }); - - if (!goog.object.isEmpty(goog.fx.anim.activeAnimations_)) { - goog.fx.anim.requestAnimationFrame_(); - } -}; |