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< li class = "class-depth-1" >
< a href = "PIXI.CanvasRenderer.html" > CanvasRenderer< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.CanvasTinter.html" > CanvasTinter< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.ComplexPrimitiveShader.html" > ComplexPrimitiveShader< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.DisplayObject.html" > DisplayObject< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.DisplayObjectContainer.html" > DisplayObjectContainer< / a >
< / li >
2016-02-08 17:01:36 +00:00
< li class = "class-depth-1" >
< a href = "PIXI.EarCut.html" > EarCut< / a >
< / li >
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< li class = "class-depth-1" >
< a href = "PIXI.Event.html" > Event< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.EventTarget.html" > EventTarget< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.FilterTexture.html" > FilterTexture< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.Graphics.html" > Graphics< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.GraphicsData.html" > GraphicsData< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.PIXI.html" > PIXI< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.PixiFastShader.html" > PixiFastShader< / a >
< / li >
< li class = "class-depth-1" >
< a href = "PIXI.PixiShader.html" > PixiShader< / a >
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.PolyK.html" > PolyK< / a >
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< / li >
< li class = "class-depth-1" >
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< a href = "PIXI.PrimitiveShader.html" > PrimitiveShader< / a >
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< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.RenderTexture.html" > RenderTexture< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.Rope.html" > Rope< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.Sprite.html" > Sprite< / a >
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< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.SpriteBatch.html" > SpriteBatch< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.Strip.html" > Strip< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.StripShader.html" > StripShader< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.Texture.html" > Texture< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.TilingSprite.html" > TilingSprite< / a >
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< / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.WebGLBlendModeManager.html" > WebGLBlendModeManager< / a >
2014-11-25 00:23:44 +00:00
< / li >
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< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.WebGLFastSpriteBatch.html" > WebGLFastSpriteBatch< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.WebGLFilterManager.html" > WebGLFilterManager< / a >
2014-11-15 20:01:46 +00:00
< / li >
< li class = "class-depth-1" >
2015-03-23 23:46:30 +00:00
< a href = "PIXI.WebGLRenderer.html" > WebGLRenderer< / a >
2014-11-15 20:01:46 +00:00
< / li >
2015-03-23 23:46:30 +00:00
< / ul >
< / li >
< li class = "dropdown" >
< a href = "global.html" class = "dropdown-toggle" data-toggle = "dropdown" > Global< b
class="caret">< / b > < / a >
< ul class = "dropdown-menu " >
< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#AUTO" > AUTO< / a >
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< / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#BITMAPDATA" > BITMAPDATA< / a >
2014-11-15 20:01:46 +00:00
< / li >
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< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#BITMAPTEXT" > BITMAPTEXT< / a >
2014-11-15 20:01:46 +00:00
< / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-0" >
< a href = "global.html#blendModes" > blendModes< / a >
2014-11-15 20:01:46 +00:00
< / li >
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< li class = "class-depth-0" >
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< a href = "global.html#BUTTON" > BUTTON< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#CANVAS" > CANVAS< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#CANVAS_FILTER" > CANVAS_FILTER< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#CIRCLE" > CIRCLE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#CREATURE" > CREATURE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#DOWN" > DOWN< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#ELLIPSE" > ELLIPSE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#EMITTER" > EMITTER< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#GAMES" > GAMES< / a >
2014-11-15 20:01:46 +00:00
< / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#GRAPHICS" > GRAPHICS< / a >
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< / li >
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< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#GROUP" > GROUP< / a >
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< / li >
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< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#HEADLESS" > HEADLESS< / a >
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< / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#IMAGE" > IMAGE< / a >
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< / li >
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< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#LEFT" > LEFT< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#LINE" > LINE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#MATRIX" > MATRIX< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#NONE" > NONE< / a >
< / li >
2016-02-08 17:01:36 +00:00
< li class = "class-depth-0" >
< a href = "global.html#PENDING_ATLAS" > PENDING_ATLAS< / a >
< / li >
2015-07-22 14:31:30 +00:00
< li class = "class-depth-0" >
< a href = "global.html#POINT" > POINT< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#POINTER" > POINTER< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#POLYGON" > POLYGON< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#RECTANGLE" > RECTANGLE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#RENDERTEXTURE" > RENDERTEXTURE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#RETROFONT" > RETROFONT< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#RIGHT" > RIGHT< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#ROPE" > ROPE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#ROUNDEDRECTANGLE" > ROUNDEDRECTANGLE< / a >
2014-11-15 20:01:46 +00:00
< / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-0" >
< a href = "global.html#scaleModes" > scaleModes< / a >
2014-11-15 20:01:46 +00:00
< / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#SPRITE" > SPRITE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#SPRITEBATCH" > SPRITEBATCH< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#TEXT" > TEXT< / a >
2014-11-15 20:01:46 +00:00
< / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#TILEMAP" > TILEMAP< / a >
2014-11-15 20:01:46 +00:00
< / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-0" >
2015-07-22 14:31:30 +00:00
< a href = "global.html#TILEMAPLAYER" > TILEMAPLAYER< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#TILESPRITE" > TILESPRITE< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#UP" > UP< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#VERSION" > VERSION< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#VIDEO" > VIDEO< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#WEBGL" > WEBGL< / a >
< / li >
< li class = "class-depth-0" >
< a href = "global.html#WEBGL_FILTER" > WEBGL_FILTER< / a >
2014-11-15 20:01:46 +00:00
< / li >
< / ul >
< / li >
2014-11-25 00:23:44 +00:00
2014-11-15 20:01:46 +00:00
< li class = "dropdown" >
2014-11-25 00:23:44 +00:00
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Core< b class = "caret" > < / b > < / a >
< ul class = "dropdown-menu " >
2014-12-03 10:39:11 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Game.html" > Game< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Group.html" > Group< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.World.html" > World< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Loader.html" > Loader< / a > < / li >
2015-07-22 14:31:30 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Cache.html" > Cache< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Time.html" > Time< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Camera.html" > Camera< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.StateManager.html" > State Manager< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.TweenManager.html" > Tween Manager< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.SoundManager.html" > Sound Manager< / a > < / li >
2015-01-06 06:57:25 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Input.html" > Input Manager< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.ScaleManager.html" > Scale Manager< / a > < / li >
< / ul >
< / li >
2014-11-15 20:01:46 +00:00
2014-11-25 00:23:44 +00:00
< li class = "dropdown" >
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Game Objects< b class = "caret" > < / b > < / a >
2014-11-15 20:01:46 +00:00
< ul class = "dropdown-menu " >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.GameObjectFactory.html" > Factory (game.add)< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.GameObjectCreator.html" > Creator (game.make)< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Sprite.html" > Sprite< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Image.html" > Image< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Sound.html" > Sound< / a > < / li >
2015-07-22 14:31:30 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Video.html" > Video< / a > < / li >
2015-01-06 06:57:25 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Particles.Arcade.Emitter.html" > Particle Emitter< / a > < / li >
2014-12-03 10:39:11 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Particle.html" > Particle< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Text.html" > Text< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Tween.html" > Tween< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.BitmapText.html" > BitmapText< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Tilemap.html" > Tilemap< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.BitmapData.html" > BitmapData< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.RetroFont.html" > RetroFont< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Button.html" > Button< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Animation.html" > Animation< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Graphics.html" > Graphics< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.RenderTexture.html" > RenderTexture< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.TileSprite.html" > TileSprite< / a > < / li >
< / ul >
< / li >
2014-11-15 20:01:46 +00:00
2014-11-25 00:23:44 +00:00
< li class = "dropdown" >
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Geometry< b class = "caret" > < / b > < / a >
< ul class = "dropdown-menu " >
< li class = "class-depth-1" > < a href = "Phaser.Circle.html" > Circle< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Ellipse.html" > Ellipse< / a > < / li >
2015-07-22 14:31:30 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Line.html" > Line< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Matrix.html" > Matrix< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Point.html" > Point< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Polygon.html" > Polygon< / a > < / li >
2015-07-22 14:31:30 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Rectangle.html" > Rectangle< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.RoundedRectangle.html" > Rounded Rectangle< / a > < / li >
2014-11-15 20:01:46 +00:00
< / ul >
< / li >
2014-11-25 00:23:44 +00:00
< li class = "dropdown" >
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Physics< b class = "caret" > < / b > < / a >
< ul class = "dropdown-menu " >
< li class = "class-depth-1" > < a href = "Phaser.Physics.Arcade.html" > Arcade Physics< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.Arcade.Body.html" > Body< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Physics.P2.html" > P2 Physics< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.P2.Body.html" > Body< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.P2.Spring.html" > Spring< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.P2.CollisionGroup.html" > CollisionGroup< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.P2.ContactMaterial.html" > ContactMaterial< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Physics.Ninja.html" > Ninja Physics< / a > < / li >
< li class = "class-depth-2" > < a href = "Phaser.Physics.Body.html" > Body< / a > < / li >
< / ul >
< / li >
< li class = "dropdown" >
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Input< b class = "caret" > < / b > < / a >
< ul class = "dropdown-menu " >
< li class = "class-depth-1" > < a href = "Phaser.InputHandler.html" > Input Handler< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Pointer.html" > Pointer< / a > < / li >
2015-07-22 14:31:30 +00:00
< li class = "class-depth-1" > < a href = "Phaser.DeviceButton.html" > Device Button< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "Phaser.Mouse.html" > Mouse< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Keyboard.html" > Keyboard< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Key.html" > Key< / a > < / li >
< li class = "class-depth-1" > < a href = "Phaser.Gamepad.html" > Gamepad< / a > < / li >
< / ul >
< / li >
< li class = "dropdown" >
< a href = "#" class = "dropdown-toggle" data-toggle = "dropdown" > Community< b class = "caret" > < / b > < / a >
< ul class = "dropdown-menu " >
2015-03-26 02:55:18 +00:00
< li class = "class-depth-1" > < a href = "http://phaser.io" > Phaser Web Site< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "https://github.com/photonstorm/phaser" > Phaser Github< / a > < / li >
2015-03-26 02:55:18 +00:00
< li class = "class-depth-1" > < a href = "http://phaser.io/examples" > Phaser Examples< / a > < / li >
2014-11-25 00:23:44 +00:00
< li class = "class-depth-1" > < a href = "https://github.com/photonstorm/phaser-plugins" > Phaser Plugins< / a > < / li >
< li class = "class-depth-1" > < a href = "http://www.html5gamedevs.com/forum/14-phaser/" > Forum< / a > < / li >
< li class = "class-depth-1" > < a href = "http://stackoverflow.com/questions/tagged/phaser-framework" > Stack Overflow< / a > < / li >
2015-07-22 14:31:30 +00:00
< li class = "class-depth-1" > < a href = "http://phaser.io/learn" > Tutorials< / a > < / li >
2016-05-19 11:36:51 +00:00
< li class = "class-depth-1" > < a href = "http://phaser.io/community/newsletter" > Newsletter< / a > < / li >
2015-03-26 02:55:18 +00:00
< li class = "class-depth-1" > < a href = "http://phaser.io/community/twitter" > Twitter< / a > < / li >
2016-05-19 11:36:51 +00:00
< li class = "class-depth-1" > < a href = "http://phaser.io/news/2015/08/phaser-slack-channel" > Slack< / a > < / li >
2015-03-23 23:46:30 +00:00
< li class = "class-depth-1" > < a href = "https://www.codeandweb.com/texturepacker/phaser" > Texture Packer< / a > < / li >
2014-11-25 00:23:44 +00:00
< / ul >
< / li >
2014-11-15 20:01:46 +00:00
< / ul >
< / div >
< / div >
< div class = "row-fluid" >
< div class = "span12" >
< div id = "main" >
2015-03-23 23:46:30 +00:00
< h1 class = "page-title" > Source: src/system/DOM.js< / h1 >
2014-11-15 20:01:46 +00:00
< section >
< article >
< pre class = "sunlight-highlight-javascript linenums" > /**
* @author Richard Davey < rich@photonstorm.com>
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* @copyright 2016 Photon Storm Ltd.
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* @license {@link https://github.com/photonstorm/phaser/blob/master/license.txt|MIT License}
*/
/**
* DOM utility class.
*
* Provides a useful Window and Element functions as well as cross-browser compatibility buffer.
*
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* Some code originally derived from {@link https://github.com/ryanve/verge verge}.
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* Some parts were inspired by the research of Ryan Van Etten, released under MIT License 2013.
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*
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* @class Phaser.DOM
* @static
*/
Phaser.DOM = {
/**
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* Get the [absolute] position of the element relative to the Document.
*
* The value may vary slightly as the page is scrolled due to rounding errors.
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*
* @method Phaser.DOM.getOffset
* @param {DOMElement} element - The targeted element that we want to retrieve the offset.
* @param {Phaser.Point} [point] - The point we want to take the x/y values of the offset.
* @return {Phaser.Point} - A point objet with the offsetX and Y as its properties.
*/
getOffset: function (element, point) {
point = point || new Phaser.Point();
var box = element.getBoundingClientRect();
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var scrollTop = Phaser.DOM.scrollY;
var scrollLeft = Phaser.DOM.scrollX;
var clientTop = document.documentElement.clientTop;
var clientLeft = document.documentElement.clientLeft;
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point.x = box.left + scrollLeft - clientLeft;
point.y = box.top + scrollTop - clientTop;
return point;
},
/**
* A cross-browser element.getBoundingClientRect method with optional cushion.
*
* Returns a plain object containing the properties `top/bottom/left/right/width/height` with respect to the top-left corner of the current viewport.
* Its properties match the native rectangle.
* The cushion parameter is an amount of pixels (+/-) to cushion the element.
* It adjusts the measurements such that it is possible to detect when an element is near the viewport.
*
* @method Phaser.DOM.getBounds
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* @param {DOMElement|Object} element - The element or stack (uses first item) to get the bounds for.
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* @param {number} [cushion] - A +/- pixel adjustment amount.
* @return {Object|boolean} A plain object containing the properties `top/bottom/left/right/width/height` or `false` if a non-valid element is given.
*/
getBounds: function (element, cushion) {
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if (cushion === undefined) { cushion = 0; }
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element = element & & !element.nodeType ? element[0] : element;
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if (!element || element.nodeType !== 1)
{
return false;
}
else
{
return this.calibrate(element.getBoundingClientRect(), cushion);
}
},
/**
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* Calibrates element coordinates for `inLayoutViewport` checks.
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*
* @method Phaser.DOM.calibrate
* @private
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* @param {object} coords - An object containing the following properties: `{top: number, right: number, bottom: number, left: number}`
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* @param {number} [cushion] - A value to adjust the coordinates by.
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* @return {object} The calibrated element coordinates
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*/
calibrate: function (coords, cushion) {
cushion = +cushion || 0;
var output = { width: 0, height: 0, left: 0, right: 0, top: 0, bottom: 0 };
output.width = (output.right = coords.right + cushion) - (output.left = coords.left - cushion);
output.height = (output.bottom = coords.bottom + cushion) - (output.top = coords.top - cushion);
return output;
},
/**
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* Get the Visual viewport aspect ratio (or the aspect ratio of an object or element)
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*
* @method Phaser.DOM.getAspectRatio
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* @param {(DOMElement|Object)} [object=(visualViewport)] - The object to determine the aspect ratio for. Must have public `width` and `height` properties or methods.
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* @return {number} The aspect ratio.
*/
getAspectRatio: function (object) {
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object = null == object ? this.visualBounds : 1 === object.nodeType ? this.getBounds(object) : object;
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var w = object['width'];
var h = object['height'];
if (typeof w === 'function')
{
w = w.call(object);
}
if (typeof h === 'function')
{
h = h.call(object);
}
return w / h;
},
/**
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* Tests if the given DOM element is within the Layout viewport.
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*
* The optional cushion parameter allows you to specify a distance.
*
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* inLayoutViewport(element, 100) is `true` if the element is in the viewport or 100px near it.
* inLayoutViewport(element, -100) is `true` if the element is in the viewport or at least 100px near it.
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*
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* @method Phaser.DOM.inLayoutViewport
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* @param {DOMElement|Object} element - The DOM element to check. If no element is given it defaults to the Phaser game canvas.
* @param {number} [cushion] - The cushion allows you to specify a distance within which the element must be within the viewport.
* @return {boolean} True if the element is within the viewport, or within `cushion` distance from it.
*/
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inLayoutViewport: function (element, cushion) {
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var r = this.getBounds(element, cushion);
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return !!r & & r.bottom >= 0 & & r.right >= 0 & & r.top < = this.layoutBounds.width & & r.left < = this.layoutBounds.height;
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},
/**
* Returns the device screen orientation.
*
* Orientation values: 'portrait-primary', 'landscape-primary', 'portrait-secondary', 'landscape-secondary'.
*
* Order of resolving:
* - Screen Orientation API, or variation of - Future track. Most desktop and mobile browsers.
* - Screen size ratio check - If fallback is 'screen', suited for desktops.
* - Viewport size ratio check - If fallback is 'viewport', suited for mobile.
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* - window.orientation - If fallback is 'window.orientation', works iOS and probably most Android; non-recommended track.
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* - Media query
* - Viewport size ratio check (probably only IE9 and legacy mobile gets here..)
*
* See
* - https://w3c.github.io/screen-orientation/ (conflicts with mozOrientation/msOrientation)
* - https://developer.mozilla.org/en-US/docs/Web/API/Screen.orientation (mozOrientation)
* - http://msdn.microsoft.com/en-us/library/ie/dn342934(v=vs.85).aspx
* - https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Testing_media_queries
* - http://stackoverflow.com/questions/4917664/detect-viewport-orientation
* - http://www.matthewgifford.com/blog/2011/12/22/a-misconception-about-window-orientation
*
* @method Phaser.DOM.getScreenOrientation
* @protected
* @param {string} [primaryFallback=(none)] - Specify 'screen', 'viewport', or 'window.orientation'.
*/
getScreenOrientation: function (primaryFallback) {
var screen = window.screen;
var orientation = screen.orientation || screen.mozOrientation || screen.msOrientation;
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if (orientation & & typeof orientation.type === 'string')
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{
// Screen Orientation API specification
return orientation.type;
}
else if (typeof orientation === 'string')
{
// moz/ms-orientation are strings
return orientation;
}
var PORTRAIT = 'portrait-primary';
var LANDSCAPE = 'landscape-primary';
if (primaryFallback === 'screen')
{
return (screen.height > screen.width) ? PORTRAIT : LANDSCAPE;
}
else if (primaryFallback === 'viewport')
{
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return (this.visualBounds.height > this.visualBounds.width) ? PORTRAIT : LANDSCAPE;
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}
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else if (primaryFallback === 'window.orientation' & & typeof window.orientation === 'number')
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{
// This may change by device based on "natural" orientation.
return (window.orientation === 0 || window.orientation === 180) ? PORTRAIT : LANDSCAPE;
}
else if (window.matchMedia)
{
if (window.matchMedia("(orientation: portrait)").matches)
{
return PORTRAIT;
}
else if (window.matchMedia("(orientation: landscape)").matches)
{
return LANDSCAPE;
}
}
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return (this.visualBounds.height > this.visualBounds.width) ? PORTRAIT : LANDSCAPE;
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},
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/**
* The bounds of the Visual viewport, as discussed in
* {@link http://www.quirksmode.org/mobile/viewports.html A tale of two viewports — part one}
* with one difference: the viewport size _excludes_ scrollbars, as found on some desktop browsers.
*
* Supported mobile:
* iOS/Safari, Android 4, IE10, Firefox OS (maybe not Firefox Android), Opera Mobile 16
*
* The properties change dynamically.
*
* @type {Phaser.Rectangle}
* @property {number} x - Scroll, left offset - eg. "scrollX"
* @property {number} y - Scroll, top offset - eg. "scrollY"
* @property {number} width - Viewport width in pixels.
* @property {number} height - Viewport height in pixels.
* @readonly
*/
visualBounds: new Phaser.Rectangle(),
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/**
* The bounds of the Layout viewport, as discussed in
* {@link http://www.quirksmode.org/mobile/viewports2.html A tale of two viewports — part two};
* but honoring the constraints as specified applicable viewport meta-tag.
*
* The bounds returned are not guaranteed to be fully aligned with CSS media queries (see
* {@link http://www.matanich.com/2013/01/07/viewport-size/ What size is my viewport?}).
*
* This is _not_ representative of the Visual bounds: in particular the non-primary axis will
* generally be significantly larger than the screen height on mobile devices when running with a
* constrained viewport.
*
* The properties change dynamically.
*
* @type {Phaser.Rectangle}
* @property {number} width - Viewport width in pixels.
* @property {number} height - Viewport height in pixels.
* @readonly
*/
layoutBounds: new Phaser.Rectangle(),
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/**
* The size of the document / Layout viewport.
*
* This incorrectly reports the dimensions in IE.
*
* The properties change dynamically.
*
* @type {Phaser.Rectangle}
* @property {number} width - Document width in pixels.
* @property {number} height - Document height in pixels.
* @readonly
*/
documentBounds: new Phaser.Rectangle()
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};
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Phaser.Device.whenReady(function (device) {
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// All target browsers should support page[XY]Offset.
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var scrollX = window & & ('pageXOffset' in window) ?
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function () { return window.pageXOffset; } :
function () { return document.documentElement.scrollLeft; };
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var scrollY = window & & ('pageYOffset' in window) ?
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function () { return window.pageYOffset; } :
function () { return document.documentElement.scrollTop; };
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/**
* A cross-browser window.scrollX.
*
* @name Phaser.DOM.scrollX
* @property {number} scrollX
* @readonly
* @protected
*/
Object.defineProperty(Phaser.DOM, "scrollX", {
get: scrollX
});
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/**
* A cross-browser window.scrollY.
*
* @name Phaser.DOM.scrollY
* @property {number} scrollY
* @readonly
* @protected
*/
Object.defineProperty(Phaser.DOM, "scrollY", {
get: scrollY
});
Object.defineProperty(Phaser.DOM.visualBounds, "x", {
get: scrollX
});
Object.defineProperty(Phaser.DOM.visualBounds, "y", {
get: scrollY
});
Object.defineProperty(Phaser.DOM.layoutBounds, "x", {
value: 0
});
Object.defineProperty(Phaser.DOM.layoutBounds, "y", {
value: 0
});
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var treatAsDesktop = device.desktop & &
(document.documentElement.clientWidth < = window.innerWidth) & &
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(document.documentElement.clientHeight < = window.innerHeight);
// Desktop browsers align the layout viewport with the visual viewport.
// This differs from mobile browsers with their zooming design.
// Ref. http://quirksmode.org/mobile/tableViewport.html
if (treatAsDesktop)
{
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// PST- When scrollbars are not included this causes upstream issues in ScaleManager.
// So reverted to the old "include scrollbars."
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var clientWidth = function () {
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return Math.max(window.innerWidth, document.documentElement.clientWidth);
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};
var clientHeight = function () {
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return Math.max(window.innerHeight, document.documentElement.clientHeight);
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};
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// Interested in area sans-scrollbar
Object.defineProperty(Phaser.DOM.visualBounds, "width", {
get: clientWidth
});
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Object.defineProperty(Phaser.DOM.visualBounds, "height", {
get: clientHeight
});
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Object.defineProperty(Phaser.DOM.layoutBounds, "width", {
get: clientWidth
});
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Object.defineProperty(Phaser.DOM.layoutBounds, "height", {
get: clientHeight
});
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} else {
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Object.defineProperty(Phaser.DOM.visualBounds, "width", {
get: function () {
return window.innerWidth;
}
});
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Object.defineProperty(Phaser.DOM.visualBounds, "height", {
get: function () {
return window.innerHeight;
}
});
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Object.defineProperty(Phaser.DOM.layoutBounds, "width", {
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get: function () {
var a = document.documentElement.clientWidth;
var b = window.innerWidth;
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return a < b ? b : a; // max
}
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});
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Object.defineProperty(Phaser.DOM.layoutBounds, "height", {
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get: function () {
var a = document.documentElement.clientHeight;
var b = window.innerHeight;
return a < b ? b : a; // max
}
});
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}
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// For Phaser.DOM.documentBounds
// Ref. http://www.quirksmode.org/mobile/tableViewport_desktop.html
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Object.defineProperty(Phaser.DOM.documentBounds, "x", {
value: 0
});
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Object.defineProperty(Phaser.DOM.documentBounds, "y", {
value: 0
});
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Object.defineProperty(Phaser.DOM.documentBounds, "width", {
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get: function () {
var d = document.documentElement;
return Math.max(d.clientWidth, d.offsetWidth, d.scrollWidth);
}
});
Object.defineProperty(Phaser.DOM.documentBounds, "height", {
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get: function () {
var d = document.documentElement;
return Math.max(d.clientHeight, d.offsetHeight, d.scrollHeight);
}
});
}, null, true);
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