diff options
Diffstat (limited to 'contexts/data/lib/closure-library/closure/goog/debug/fpsdisplay.js')
-rw-r--r-- | contexts/data/lib/closure-library/closure/goog/debug/fpsdisplay.js | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/contexts/data/lib/closure-library/closure/goog/debug/fpsdisplay.js b/contexts/data/lib/closure-library/closure/goog/debug/fpsdisplay.js deleted file mode 100644 index b5264c5..0000000 --- a/contexts/data/lib/closure-library/closure/goog/debug/fpsdisplay.js +++ /dev/null @@ -1,162 +0,0 @@ -// Copyright 2011 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 Displays frames per second (FPS) for the current window. - * Only supported in browsers that support requestAnimationFrame. - * See: https://developer.mozilla.org/en/DOM/window.requestAnimationFrame. - * - * @see ../demos/fpsdisplay.html - */ - -goog.provide('goog.debug.FpsDisplay'); - -goog.require('goog.asserts'); -goog.require('goog.async.AnimationDelay'); -goog.require('goog.ui.Component'); - - - -/** - * Displays frames per seconds that the window this component is - * rendered in is animating at. - * - * @param {goog.dom.DomHelper=} opt_domHelper An optional dom helper. - * @constructor - * @extends {goog.ui.Component} - */ -goog.debug.FpsDisplay = function(opt_domHelper) { - goog.base(this, opt_domHelper); -}; -goog.inherits(goog.debug.FpsDisplay, goog.ui.Component); - - -/** - * CSS class for the FPS display. - */ -goog.debug.FpsDisplay.CSS = goog.getCssName('goog-fps-display'); - - -/** - * The number of samples per FPS report. - */ -goog.debug.FpsDisplay.SAMPLES = 10; - - -/** - * The current animation. - * @type {goog.debug.FpsDisplay.FpsAnimation_} - * @private - */ -goog.debug.FpsDisplay.prototype.animation_ = null; - - -/** @override */ -goog.debug.FpsDisplay.prototype.createDom = function() { - this.setElementInternal( - this.getDomHelper().createDom('div', goog.debug.FpsDisplay.CSS)); -}; - - -/** @override */ -goog.debug.FpsDisplay.prototype.enterDocument = function() { - goog.base(this, 'enterDocument'); - this.animation_ = new goog.debug.FpsDisplay.FpsAnimation_(this.getElement()); - this.delay_ = new goog.async.AnimationDelay( - this.handleDelay_, this.getDomHelper().getWindow(), this); - this.delay_.start(); -}; - - -/** - * @param {number} now The current time. - * @private - */ -goog.debug.FpsDisplay.prototype.handleDelay_ = function(now) { - if (this.isInDocument()) { - this.animation_.onAnimationFrame(now); - this.delay_.start(); - } -}; - - -/** @override */ -goog.debug.FpsDisplay.prototype.exitDocument = function() { - goog.base(this, 'exitDocument'); - this.animation_ = null; - goog.dispose(this.delay_); -}; - - -/** - * @return {number} The average frames per second. - */ -goog.debug.FpsDisplay.prototype.getFps = function() { - goog.asserts.assert( - this.isInDocument(), 'Render the FPS display before querying FPS'); - return this.animation_.lastFps_; -}; - - - -/** - * @param {Element} elem An element to hold the FPS count. - * @constructor - * @private - */ -goog.debug.FpsDisplay.FpsAnimation_ = function(elem) { - /** - * An element to hold the current FPS rate. - * @type {Element} - * @private - */ - this.element_ = elem; - - /** - * The number of frames observed so far. - * @type {number} - * @private - */ - this.frameNumber_ = 0; -}; - - -/** - * The last time which we reported FPS at. - * @type {number} - * @private - */ -goog.debug.FpsDisplay.FpsAnimation_.prototype.lastTime_ = 0; - - -/** - * The last average FPS. - * @type {number} - * @private - */ -goog.debug.FpsDisplay.FpsAnimation_.prototype.lastFps_ = -1; - - -/** - * @param {number} now The current time. - */ -goog.debug.FpsDisplay.FpsAnimation_.prototype.onAnimationFrame = function(now) { - var SAMPLES = goog.debug.FpsDisplay.SAMPLES; - if (this.frameNumber_ % SAMPLES == 0) { - this.lastFps_ = Math.round((1000 * SAMPLES) / (now - this.lastTime_)); - this.element_.innerHTML = this.lastFps_; - this.lastTime_ = now; - } - this.frameNumber_++; -}; |