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1 /*!
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2 * jQuery UI Effects Bounce 1.10.4
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3 * http://jqueryui.com
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4 *
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5 * Copyright 2014 jQuery Foundation and other contributors
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6 * Released under the MIT license.
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7 * http://jquery.org/license
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8 *
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9 * http://api.jqueryui.com/bounce-effect/
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10 *
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11 * Depends:
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12 * jquery.ui.effect.js
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13 */
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14 (function( $, undefined ) {
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15
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16 $.effects.effect.bounce = function( o, done ) {
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17 var el = $( this ),
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18 props = [ "position", "top", "bottom", "left", "right", "height", "width" ],
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19
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20 // defaults:
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21 mode = $.effects.setMode( el, o.mode || "effect" ),
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22 hide = mode === "hide",
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23 show = mode === "show",
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24 direction = o.direction || "up",
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25 distance = o.distance,
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26 times = o.times || 5,
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27
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28 // number of internal animations
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29 anims = times * 2 + ( show || hide ? 1 : 0 ),
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30 speed = o.duration / anims,
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31 easing = o.easing,
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32
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33 // utility:
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34 ref = ( direction === "up" || direction === "down" ) ? "top" : "left",
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35 motion = ( direction === "up" || direction === "left" ),
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36 i,
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37 upAnim,
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38 downAnim,
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39
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40 // we will need to re-assemble the queue to stack our animations in place
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41 queue = el.queue(),
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42 queuelen = queue.length;
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43
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44 // Avoid touching opacity to prevent clearType and PNG issues in IE
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45 if ( show || hide ) {
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46 props.push( "opacity" );
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47 }
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48
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49 $.effects.save( el, props );
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50 el.show();
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51 $.effects.createWrapper( el ); // Create Wrapper
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52
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53 // default distance for the BIGGEST bounce is the outer Distance / 3
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54 if ( !distance ) {
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55 distance = el[ ref === "top" ? "outerHeight" : "outerWidth" ]() / 3;
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56 }
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57
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58 if ( show ) {
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59 downAnim = { opacity: 1 };
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60 downAnim[ ref ] = 0;
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61
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62 // if we are showing, force opacity 0 and set the initial position
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63 // then do the "first" animation
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64 el.css( "opacity", 0 )
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65 .css( ref, motion ? -distance * 2 : distance * 2 )
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66 .animate( downAnim, speed, easing );
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67 }
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68
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69 // start at the smallest distance if we are hiding
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70 if ( hide ) {
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71 distance = distance / Math.pow( 2, times - 1 );
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72 }
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73
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74 downAnim = {};
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75 downAnim[ ref ] = 0;
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76 // Bounces up/down/left/right then back to 0 -- times * 2 animations happen here
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77 for ( i = 0; i < times; i++ ) {
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78 upAnim = {};
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79 upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;
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80
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81 el.animate( upAnim, speed, easing )
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82 .animate( downAnim, speed, easing );
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83
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84 distance = hide ? distance * 2 : distance / 2;
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85 }
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86
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87 // Last Bounce when Hiding
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88 if ( hide ) {
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89 upAnim = { opacity: 0 };
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90 upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;
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91
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92 el.animate( upAnim, speed, easing );
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93 }
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94
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95 el.queue(function() {
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96 if ( hide ) {
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97 el.hide();
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98 }
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99 $.effects.restore( el, props );
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100 $.effects.removeWrapper( el );
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101 done();
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102 });
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103
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104 // inject all the animations we just queued to be first in line (after "inprogress")
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105 if ( queuelen > 1) {
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106 queue.splice.apply( queue,
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107 [ 1, 0 ].concat( queue.splice( queuelen, anims + 1 ) ) );
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108 }
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109 el.dequeue();
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110
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111 };
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112
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113 })(jQuery);
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