jQuery 1.4 Animation Techniques - Index of

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[ 47 ] Chapter 2 Usually these methods do not take any arguments, but we can trigger an animation by supplying an additional argument which represents either the duration, or the easing of the animation. We can also add a callback function in keeping with the animation methods we have looked at so far. The methods can take the following format: jQuery(elements).show(duration, [easing], [callback]); jQuery(elements).hide(duration, [easing], [callback]); These animations are a step-up in complexity from simple fading because instead of just animating the opacity of the selected elements, the width and height of the element are animated too. Syntactically, the methods are very similar however. This means that the selected elements will grow in size as they appear, or shrink as they disappear. We have little direct control over this however, and can set only the duration or easing of the animations. The direction in which the selected element will grow or shrink can be manipulated indirectly via CSS however. If the selected element is positioned using its left and top style properties, the animation will proceed from the top-left corner, growing to the right and down. If it is positioned using its right and bottom style properties, it will grow up and to the left instead. When an animation is not proceeding in the way in which you expect, it is always worth ruling out any interference from CSS. Styles can affect how an element is animated, so if you aren't getting errors in the JavaScript console, always check that the CSS isn't the cause of unexpected behavior. I have lost count of the hours spent checking and rechecking scripts, only to find that a tiny tweak to the CSS fixes the problem entirely. Like the fadeIn() method, elements that are to be animated using the show() method should initially be hidden with display:none. Elements being shown will be set to display:block, or whatever other display mode is acceptable for the element in question. Flyout submenus with jQuery's show/hide logic Let's take a look at a basic example of the show() and hide() methods in action. We'll create a simple vertical navigation menu which features fly-out submenus that are animated in and out of view. We'll look at the following aspects of these methods: How to trigger an animation using the show() or hide() methods
Fading Animations Our fly-out menu will be displayed like this: In the previous screenshot, we see the submenu fade in as well as grow outwards as the mouse pointer hovers over a top-level menu item. As before, the animation proceeds from the top to the bottom in the screenshot. [ 48 ]
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Download from Wow! eBook jQuery 1.
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Author Dan Wellman Reviewers Shaifu
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About the Author Dan Wellman is an
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Cyril Pierron is an engineer, a web
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For Pat Spacagna, the greatest moth
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Download from Wow! eBook Table of
Page 17 and 18: Table of Contents Time for action -
Page 19 and 20: Table of Contents jQuery and transf
Page 21 and 22: Drawing to the canvas 309 Supportin
Page 23 and 24: Preface What this book covers Chapt
Page 25 and 26: Preface Have a go hero - heading Th
Page 27 and 28: Preface Piracy Piracy of copyright
Page 29 and 30: Introduction In addition to animate
Page 31 and 32: Introduction When not to use animat
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Page 35 and 36: Introduction In the previous screen
Page 37 and 38: Introduction Once our variables hav
Page 40 and 41: 2 Fading Animations In this chapter
Page 42 and 43: [ 21 ] Chapter 2 We can control the
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Page 46 and 47: [ 25 ] Chapter 2 Most of the styles
Page 48 and 49: 2. What else can be passed into the
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Page 52 and 53: [ 31 ] Chapter 2 For example, the a
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Page 58 and 59: The fadeTo() method is used in the
Page 60 and 61: [ 39 ] Chapter 2 #messageList table
Page 62 and 63: [ 41 ] Chapter 2 What just happened
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Page 66 and 67: } var el = $(this); if (el.css("fil
Page 70 and 71: Time for action - animations with s
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Page 74 and 75: 2. Save the changes as toggle.html.
Page 76 and 77: 3 Managing Animations Like most of
Page 78 and 79: [ 57 ] Chapter 3 A custom queue tha
Page 80 and 81: If we wish to see how many function
Page 82 and 83: 2. What does the queue() method ret
Page 84 and 85: [ 63 ] Chapter 3 The argument we su
Page 86 and 87: [ 65 ] Chapter 3 We pass a callback
Page 88 and 89: [ 67 ] Chapter 3 The first argument
Page 90 and 91: Delaying queue execution [ 69 ] Cha
Page 92 and 93: [ 71 ] Chapter 3 Also note that the
Page 94 and 95: 4 Sliding Animations Another type o
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Page 98 and 99: [ 77 ] Chapter 4 header form input
Page 100 and 101: Pop quiz - sliding elements down 1.
Page 102 and 103: Download from Wow! eBook }); }); $
Page 104 and 105: Toggling the slide [ 83 ] Chapter 4
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In the previous screenshot, we see
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Pop quiz - fixing the flicker 1. Wh
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5 Custom Animations The predefined
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An alternative syntax for animate()
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[ 105 ] Chapter 5 width:295px; marg
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[ 107 ] Chapter 5 What just happene
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[ 109 ] Chapter 5 Although not esse
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[ 111 ] Chapter 5 The previous scre
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[ 113 ] Chapter 5 The styles we use
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}, html: copy, width: expander.widt
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[ 119 ] Chapter 5 If the image alre
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[ 121 ] Chapter 5 d. Two objects wh
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[ 123 ] Chapter 5 text-align:center
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[ 127 ] Chapter 5 Finally, we retur
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[ 129 ] Chapter 5 Once we've define
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} }; $(config.selector).find("a").c
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[ 133 ] Chapter 5 In the previous s
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Have a go hero - extending the plug
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Extended Animations with jQuery UI
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Download from Wow! eBook Extended
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Full Page Animations Can we animate
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Full Page Animations display:block;
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Download from Wow! eBook Full Page
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Full Page Animations Have a go hero
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Full Page Animations 4. Save this f
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Full Page Animations 2. The bgpos c
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Full Page Animations nav ul { margi
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Full Page Animations screensize = {
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Full Page Animations What just happ
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Full Page Animations The second sec
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Full Page Animations Pop quiz - cre
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Full Page Animations Time for actio
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Full Page Animations Next we define
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8 Other Popular Animations This cha
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[ 209 ] Chapter 8 } .slider #scroll
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}), pointerText = "Use your pointer
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[ 213 ] Chapter 8 In the previous s
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prox.mousemove(function(ev) { goAni
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Pop quiz - implementing proximity a
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2. Save the new page as marquee.htm
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[ 223 ] Chapter 8 1. jQuery provide
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clear:both; } div#fadeLeft, div#fad
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Time for action - animating the pos
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2. In this example we used the dele
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CSS3 Animations The following trans
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CSS3 Animations Units It is of crit
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CSS3 Animations Skew Remember the t
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CSS3 Animations Calculating the sin
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CSS3 Animations The filter property
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CSS3 Animations If, like me, you th
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CSS3 Animations } el.filters.item("
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CSS3 Animations An unfortunate prob
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CSS3 Animations The context of this
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CSS3 Animations Time for action - i
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CSS3 Animations The first variable
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CSS3 Animations Time for action - a
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Download from Wow! eBook CSS3 Anim
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CSS3 Animations We also have to upd
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CSS3 Animations flatMatrix[3] = fla
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CSS3 Animations When updating the s
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CSS3 Animations translate translate
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Canvas Animations Subjects that we'
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Canvas Animations We can set the co
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Download from Wow! eBook Canvas An
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Canvas Animations All imageData obj
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Canvas Animations context.beginPath
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Canvas Animations For the next part
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Canvas Animations Time for action -
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Canvas Animations 3. Save the new p
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Canvas Animations Once the rectangl
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Canvas Animations We then define tw
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Canvas Animations }, context.lineTo
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Canvas Animations Creating a canvas
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Canvas Animations What just happene
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Canvas Animations What just happene
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Canvas Animations aliens.splice(x,
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Canvas Animations Pop quiz - creati
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Download from Wow! eBook
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Pop Quiz Answers Using fadeToggle()
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Pop Quiz Answers Using slideToggle
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Pop Quiz Answers Implementing the p
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Pop Quiz Answers Animating the canv
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show() or hide() method, triggering
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cssHooks using 239 cssHooks feature
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fading animations 20 flicker effect
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proximity animations about 207 exte
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scaleY 232 skew 232 skewX 232 skewY
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jQuery 1.4 Reference Guide ISBN: 97
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