1 | /*!
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2 | * iScroll v4.1.9 ~ Copyright (c) 2011 Matteo Spinelli, http://cubiq.org
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3 | * Released under MIT license, http://cubiq.org/license
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4 | */
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5 | (function(){
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6 | var m = Math,
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7 | mround = function (r) { return r >> 0; },
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8 | vendor = (/webkit/i).test(navigator.appVersion) ? 'webkit' :
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9 | (/firefox/i).test(navigator.userAgent) ? 'Moz' :
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10 | (/trident/i).test(navigator.userAgent) ? 'ms' :
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11 | 'opera' in window ? 'O' : '',
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12 |
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13 | // Browser capabilities
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14 | isAndroid = (/android/gi).test(navigator.appVersion),
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15 | isIDevice = (/iphone|ipad/gi).test(navigator.appVersion),
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16 | isPlaybook = (/playbook/gi).test(navigator.appVersion),
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17 | isTouchPad = (/hp-tablet/gi).test(navigator.appVersion),
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18 |
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19 | has3d = 'WebKitCSSMatrix' in window && 'm11' in new WebKitCSSMatrix(),
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20 | hasTouch = 'ontouchstart' in window && !isTouchPad,
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21 | hasTransform = vendor + 'Transform' in document.documentElement.style,
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22 | hasTransitionEnd = isIDevice || isPlaybook,
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23 |
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24 | nextFrame = (function() {
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25 | return window.requestAnimationFrame
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26 | || window.webkitRequestAnimationFrame
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27 | || window.mozRequestAnimationFrame
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28 | || window.oRequestAnimationFrame
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29 | || window.msRequestAnimationFrame
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30 | || function(callback) { return setTimeout(callback, 1); };
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31 | })(),
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32 | cancelFrame = (function () {
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33 | return window.cancelRequestAnimationFrame
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34 | || window.webkitCancelAnimationFrame
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35 | || window.webkitCancelRequestAnimationFrame
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36 | || window.mozCancelRequestAnimationFrame
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37 | || window.oCancelRequestAnimationFrame
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38 | || window.msCancelRequestAnimationFrame
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39 | || clearTimeout;
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40 | })(),
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41 |
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42 | // Events
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43 | RESIZE_EV = 'onorientationchange' in window ? 'orientationchange' : 'resize',
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44 | START_EV = hasTouch ? 'touchstart' : 'mousedown',
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45 | MOVE_EV = hasTouch ? 'touchmove' : 'mousemove',
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46 | END_EV = hasTouch ? 'touchend' : 'mouseup',
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47 | CANCEL_EV = hasTouch ? 'touchcancel' : 'mouseup',
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48 | WHEEL_EV = vendor == 'Moz' ? 'DOMMouseScroll' : 'mousewheel',
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49 |
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50 | // Helpers
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51 | trnOpen = 'translate' + (has3d ? '3d(' : '('),
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52 | trnClose = has3d ? ',0)' : ')',
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53 |
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54 | // Constructor
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55 | iScroll = function (el, options) {
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56 | var that = this,
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57 | doc = document,
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58 | i;
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59 |
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60 | that.wrapper = typeof el == 'object' ? el : doc.getElementById(el);
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61 | that.wrapper.style.overflow = 'hidden';
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62 | that.scroller = that.wrapper.children[0];
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63 |
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64 | // Default options
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65 | that.options = {
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66 | hScroll: true,
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67 | vScroll: true,
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68 | x: 0,
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69 | y: 0,
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70 | bounce: true,
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71 | bounceLock: false,
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72 | momentum: true,
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73 | lockDirection: true,
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74 | useTransform: true,
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75 | useTransition: false,
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76 | topOffset: 0,
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77 | checkDOMChanges: false, // Experimental
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78 |
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79 | // Scrollbar
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80 | hScrollbar: true,
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81 | vScrollbar: true,
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82 | fixedScrollbar: isAndroid,
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83 | hideScrollbar: isIDevice,
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84 | fadeScrollbar: isIDevice && has3d,
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85 | scrollbarClass: '',
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86 |
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87 | // Zoom
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88 | zoom: false,
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89 | zoomMin: 1,
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90 | zoomMax: 4,
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91 | doubleTapZoom: 2,
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92 | wheelAction: 'scroll',
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93 |
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94 | // Snap
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95 | snap: false,
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96 | snapThreshold: 1,
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97 |
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98 | // Events
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99 | onRefresh: null,
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100 | onBeforeScrollStart: function (e) { e.preventDefault(); },
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101 | onScrollStart: null,
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102 | onBeforeScrollMove: null,
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103 | onScrollMove: null,
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104 | onBeforeScrollEnd: null,
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105 | onScrollEnd: null,
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106 | onTouchEnd: null,
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107 | onDestroy: null,
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108 | onZoomStart: null,
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109 | onZoom: null,
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110 | onZoomEnd: null
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111 | };
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112 |
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113 | // User defined options
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114 | for (i in options) that.options[i] = options[i];
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115 |
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116 | // Set starting position
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117 | that.x = that.options.x;
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118 | that.y = that.options.y;
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119 |
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120 | // Normalize options
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121 | that.options.useTransform = hasTransform ? that.options.useTransform : false;
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122 | that.options.hScrollbar = that.options.hScroll && that.options.hScrollbar;
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123 | that.options.vScrollbar = that.options.vScroll && that.options.vScrollbar;
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124 | that.options.zoom = that.options.useTransform && that.options.zoom;
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125 | that.options.useTransition = hasTransitionEnd && that.options.useTransition;
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126 |
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127 | // Helpers FIX ANDROID BUG!
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128 | // translate3d and scale doesn't work together!
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129 | // Ignoring 3d ONLY WHEN YOU SET that.options.zoom
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130 | if ( that.options.zoom && isAndroid ){
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131 | trnOpen = 'translate(';
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132 | trnClose = ')';
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133 | }
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134 |
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135 | // Set some default styles
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136 | that.scroller.style[vendor + 'TransitionProperty'] = that.options.useTransform ? '-' + vendor.toLowerCase() + '-transform' : 'top left';
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137 | that.scroller.style[vendor + 'TransitionDuration'] = '0';
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138 | that.scroller.style[vendor + 'TransformOrigin'] = '0 0';
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139 | if (that.options.useTransition) that.scroller.style[vendor + 'TransitionTimingFunction'] = 'cubic-bezier(0.33,0.66,0.66,1)';
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140 |
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141 | if (that.options.useTransform) that.scroller.style[vendor + 'Transform'] = trnOpen + that.x + 'px,' + that.y + 'px' + trnClose;
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142 | else that.scroller.style.cssText += ';position:absolute;top:' + that.y + 'px;left:' + that.x + 'px';
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143 |
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144 | if (that.options.useTransition) that.options.fixedScrollbar = true;
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145 |
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146 | that.refresh();
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147 |
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148 | that._bind(RESIZE_EV, window);
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149 | that._bind(START_EV);
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150 | if (!hasTouch) {
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151 | that._bind('mouseout', that.wrapper);
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152 | if (that.options.wheelAction != 'none')
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153 | that._bind(WHEEL_EV);
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154 | }
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155 |
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156 | if (that.options.checkDOMChanges) that.checkDOMTime = setInterval(function () {
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157 | that._checkDOMChanges();
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158 | }, 500);
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159 | };
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160 |
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161 | // Prototype
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162 | iScroll.prototype = {
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163 | enabled: true,
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164 | x: 0,
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165 | y: 0,
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166 | steps: [],
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167 | scale: 1,
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168 | currPageX: 0, currPageY: 0,
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169 | pagesX: [], pagesY: [],
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170 | aniTime: null,
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171 | wheelZoomCount: 0,
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172 |
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173 | handleEvent: function (e) {
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174 | var that = this;
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175 | switch(e.type) {
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176 | case START_EV:
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177 | if (!hasTouch && e.button !== 0) return;
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178 | that._start(e);
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179 | break;
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180 | case MOVE_EV: that._move(e); break;
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181 | case END_EV:
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182 | case CANCEL_EV: that._end(e); break;
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183 | case RESIZE_EV: that._resize(); break;
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184 | case WHEEL_EV: that._wheel(e); break;
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185 | case 'mouseout': that._mouseout(e); break;
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186 | case 'webkitTransitionEnd': that._transitionEnd(e); break;
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187 | }
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188 | },
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189 |
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190 | _checkDOMChanges: function () {
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191 | if (this.moved || this.zoomed || this.animating ||
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192 | (this.scrollerW == this.scroller.offsetWidth * this.scale && this.scrollerH == this.scroller.offsetHeight * this.scale)) return;
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193 |
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194 | this.refresh();
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195 | },
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196 |
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197 | _scrollbar: function (dir) {
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198 | var that = this,
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199 | doc = document,
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200 | bar;
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201 |
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202 | if (!that[dir + 'Scrollbar']) {
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203 | if (that[dir + 'ScrollbarWrapper']) {
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204 | if (hasTransform) that[dir + 'ScrollbarIndicator'].style[vendor + 'Transform'] = '';
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205 | that[dir + 'ScrollbarWrapper'].parentNode.removeChild(that[dir + 'ScrollbarWrapper']);
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206 | that[dir + 'ScrollbarWrapper'] = null;
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207 | that[dir + 'ScrollbarIndicator'] = null;
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208 | }
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209 |
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210 | return;
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211 | }
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212 |
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213 | if (!that[dir + 'ScrollbarWrapper']) {
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214 | // Create the scrollbar wrapper
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215 | bar = doc.createElement('div');
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216 |
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217 | if (that.options.scrollbarClass) bar.className = that.options.scrollbarClass + dir.toUpperCase();
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218 | else bar.style.cssText = 'position:absolute;z-index:100;' + (dir == 'h' ? 'height:7px;bottom:1px;left:2px;right:' + (that.vScrollbar ? '7' : '2') + 'px' : 'width:7px;bottom:' + (that.hScrollbar ? '7' : '2') + 'px;top:2px;right:1px');
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219 |
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220 | bar.style.cssText += ';pointer-events:none;-' + vendor + '-transition-property:opacity;-' + vendor + '-transition-duration:' + (that.options.fadeScrollbar ? '350ms' : '0') + ';overflow:hidden;opacity:' + (that.options.hideScrollbar ? '0' : '1');
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221 |
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222 | that.wrapper.appendChild(bar);
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223 | that[dir + 'ScrollbarWrapper'] = bar;
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224 |
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225 | // Create the scrollbar indicator
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226 | bar = doc.createElement('div');
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227 | if (!that.options.scrollbarClass) {
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228 | bar.style.cssText = 'position:absolute;z-index:100;background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.9);-' + vendor + '-background-clip:padding-box;-' + vendor + '-box-sizing:border-box;' + (dir == 'h' ? 'height:100%' : 'width:100%') + ';-' + vendor + '-border-radius:3px;border-radius:3px';
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229 | }
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230 | bar.style.cssText += ';pointer-events:none;-' + vendor + '-transition-property:-' + vendor + '-transform;-' + vendor + '-transition-timing-function:cubic-bezier(0.33,0.66,0.66,1);-' + vendor + '-transition-duration:0;-' + vendor + '-transform:' + trnOpen + '0,0' + trnClose;
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231 | if (that.options.useTransition) bar.style.cssText += ';-' + vendor + '-transition-timing-function:cubic-bezier(0.33,0.66,0.66,1)';
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232 |
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233 | that[dir + 'ScrollbarWrapper'].appendChild(bar);
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234 | that[dir + 'ScrollbarIndicator'] = bar;
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235 | }
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236 |
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237 | if (dir == 'h') {
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238 | that.hScrollbarSize = that.hScrollbarWrapper.clientWidth;
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239 | that.hScrollbarIndicatorSize = m.max(mround(that.hScrollbarSize * that.hScrollbarSize / that.scrollerW), 8);
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240 | that.hScrollbarIndicator.style.width = that.hScrollbarIndicatorSize + 'px';
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241 | that.hScrollbarMaxScroll = that.hScrollbarSize - that.hScrollbarIndicatorSize;
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242 | that.hScrollbarProp = that.hScrollbarMaxScroll / that.maxScrollX;
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243 | } else {
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244 | that.vScrollbarSize = that.vScrollbarWrapper.clientHeight;
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245 | that.vScrollbarIndicatorSize = m.max(mround(that.vScrollbarSize * that.vScrollbarSize / that.scrollerH), 8);
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246 | that.vScrollbarIndicator.style.height = that.vScrollbarIndicatorSize + 'px';
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247 | that.vScrollbarMaxScroll = that.vScrollbarSize - that.vScrollbarIndicatorSize;
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248 | that.vScrollbarProp = that.vScrollbarMaxScroll / that.maxScrollY;
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249 | }
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250 |
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251 | // Reset position
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252 | that._scrollbarPos(dir, true);
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253 | },
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254 |
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255 | _resize: function () {
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256 | var that = this;
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257 | setTimeout(function () { that.refresh(); }, isAndroid ? 200 : 0);
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258 | },
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259 |
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260 | _pos: function (x, y) {
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261 | if (this.zoomed) return;
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262 |
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263 | x = this.hScroll ? x : 0;
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264 | y = this.vScroll ? y : 0;
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265 |
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266 | if (this.options.useTransform) {
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267 | this.scroller.style[vendor + 'Transform'] = trnOpen + x + 'px,' + y + 'px' + trnClose + ' scale(' + this.scale + ')';
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268 | } else {
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269 | x = mround(x);
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270 | y = mround(y);
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271 | this.scroller.style.left = x + 'px';
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272 | this.scroller.style.top = y + 'px';
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273 | }
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274 |
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275 | this.x = x;
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276 | this.y = y;
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277 |
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278 | this._scrollbarPos('h');
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279 | this._scrollbarPos('v');
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280 | },
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281 |
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282 | _scrollbarPos: function (dir, hidden) {
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283 | var that = this,
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284 | pos = dir == 'h' ? that.x : that.y,
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285 | size;
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286 |
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287 | if (!that[dir + 'Scrollbar']) return;
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288 |
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289 | pos = that[dir + 'ScrollbarProp'] * pos;
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290 |
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291 | if (pos < 0) {
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292 | if (!that.options.fixedScrollbar) {
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293 | size = that[dir + 'ScrollbarIndicatorSize'] + mround(pos * 3);
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294 | if (size < 8) size = 8;
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295 | that[dir + 'ScrollbarIndicator'].style[dir == 'h' ? 'width' : 'height'] = size + 'px';
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296 | }
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297 | pos = 0;
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298 | } else if (pos > that[dir + 'ScrollbarMaxScroll']) {
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299 | if (!that.options.fixedScrollbar) {
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300 | size = that[dir + 'ScrollbarIndicatorSize'] - mround((pos - that[dir + 'ScrollbarMaxScroll']) * 3);
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301 | if (size < 8) size = 8;
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302 | that[dir + 'ScrollbarIndicator'].style[dir == 'h' ? 'width' : 'height'] = size + 'px';
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303 | pos = that[dir + 'ScrollbarMaxScroll'] + (that[dir + 'ScrollbarIndicatorSize'] - size);
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304 | } else {
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305 | pos = that[dir + 'ScrollbarMaxScroll'];
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306 | }
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307 | }
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308 |
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309 | that[dir + 'ScrollbarWrapper'].style[vendor + 'TransitionDelay'] = '0';
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310 | that[dir + 'ScrollbarWrapper'].style.opacity = hidden && that.options.hideScrollbar ? '0' : '1';
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311 | that[dir + 'ScrollbarIndicator'].style[vendor + 'Transform'] = trnOpen + (dir == 'h' ? pos + 'px,0' : '0,' + pos + 'px') + trnClose;
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312 | },
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313 |
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314 | _start: function (e) {
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315 | var that = this,
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316 | point = hasTouch ? e.touches[0] : e,
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317 | matrix, x, y,
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318 | c1, c2;
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319 |
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320 | if (!that.enabled) return;
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321 |
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322 | if (that.options.onBeforeScrollStart) that.options.onBeforeScrollStart.call(that, e);
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323 |
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324 | if (that.options.useTransition || that.options.zoom) that._transitionTime(0);
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325 |
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326 | that.moved = false;
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327 | that.animating = false;
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328 | that.zoomed = false;
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329 | that.distX = 0;
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330 | that.distY = 0;
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331 | that.absDistX = 0;
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332 | that.absDistY = 0;
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333 | that.dirX = 0;
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334 | that.dirY = 0;
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335 |
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336 | // Gesture start
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337 | if (that.options.zoom && hasTouch && e.touches.length > 1) {
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338 | c1 = m.abs(e.touches[0].pageX-e.touches[1].pageX);
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339 | c2 = m.abs(e.touches[0].pageY-e.touches[1].pageY);
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340 | that.touchesDistStart = m.sqrt(c1 * c1 + c2 * c2);
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341 |
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342 | that.originX = m.abs(e.touches[0].pageX + e.touches[1].pageX - that.wrapperOffsetLeft * 2) / 2 - that.x;
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343 | that.originY = m.abs(e.touches[0].pageY + e.touches[1].pageY - that.wrapperOffsetTop * 2) / 2 - that.y;
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344 |
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345 | if (that.options.onZoomStart) that.options.onZoomStart.call(that, e);
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346 | }
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347 |
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348 | if (that.options.momentum) {
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349 | if (that.options.useTransform) {
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350 | // Very lame general purpose alternative to CSSMatrix
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351 | matrix = getComputedStyle(that.scroller, null)[vendor + 'Transform'].replace(/[^0-9-.,]/g, '').split(',');
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352 | x = matrix[4] * 1;
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353 | y = matrix[5] * 1;
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354 | } else {
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355 | x = getComputedStyle(that.scroller, null).left.replace(/[^0-9-]/g, '') * 1;
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356 | y = getComputedStyle(that.scroller, null).top.replace(/[^0-9-]/g, '') * 1;
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357 | }
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358 |
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359 | if (x != that.x || y != that.y) {
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360 | if (that.options.useTransition) that._unbind('webkitTransitionEnd');
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361 | else cancelFrame(that.aniTime);
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362 | that.steps = [];
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363 | that._pos(x, y);
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364 | }
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365 | }
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366 |
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367 | that.absStartX = that.x; // Needed by snap threshold
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368 | that.absStartY = that.y;
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369 |
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370 | that.startX = that.x;
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371 | that.startY = that.y;
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372 | that.pointX = point.pageX;
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373 | that.pointY = point.pageY;
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374 |
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375 | that.startTime = e.timeStamp || Date.now();
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376 |
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377 | if (that.options.onScrollStart) that.options.onScrollStart.call(that, e);
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378 |
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379 | that._bind(MOVE_EV);
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380 | that._bind(END_EV);
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381 | that._bind(CANCEL_EV);
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382 | },
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383 |
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384 | _move: function (e) {
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385 | var that = this,
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386 | point = hasTouch ? e.touches[0] : e,
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387 | deltaX = point.pageX - that.pointX,
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388 | deltaY = point.pageY - that.pointY,
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389 | newX = that.x + deltaX,
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390 | newY = that.y + deltaY,
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391 | c1, c2, scale,
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392 | timestamp = e.timeStamp || Date.now();
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393 |
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394 | if (that.options.onBeforeScrollMove) that.options.onBeforeScrollMove.call(that, e);
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395 |
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396 | // Zoom
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397 | if (that.options.zoom && hasTouch && e.touches.length > 1) {
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398 | c1 = m.abs(e.touches[0].pageX - e.touches[1].pageX);
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399 | c2 = m.abs(e.touches[0].pageY - e.touches[1].pageY);
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400 | that.touchesDist = m.sqrt(c1*c1+c2*c2);
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401 |
|
---|
402 | that.zoomed = true;
|
---|
403 |
|
---|
404 | scale = 1 / that.touchesDistStart * that.touchesDist * this.scale;
|
---|
405 |
|
---|
406 | if (scale < that.options.zoomMin) scale = 0.5 * that.options.zoomMin * Math.pow(2.0, scale / that.options.zoomMin);
|
---|
407 | else if (scale > that.options.zoomMax) scale = 2.0 * that.options.zoomMax * Math.pow(0.5, that.options.zoomMax / scale);
|
---|
408 |
|
---|
409 | that.lastScale = scale / this.scale;
|
---|
410 |
|
---|
411 | newX = this.originX - this.originX * that.lastScale + this.x,
|
---|
412 | newY = this.originY - this.originY * that.lastScale + this.y;
|
---|
413 |
|
---|
414 | this.scroller.style[vendor + 'Transform'] = trnOpen + newX + 'px,' + newY + 'px' + trnClose + ' scale(' + scale + ')';
|
---|
415 |
|
---|
416 | if (that.options.onZoom) that.options.onZoom.call(that, e);
|
---|
417 | return;
|
---|
418 | }
|
---|
419 |
|
---|
420 | that.pointX = point.pageX;
|
---|
421 | that.pointY = point.pageY;
|
---|
422 |
|
---|
423 | // Slow down if outside of the boundaries
|
---|
424 | if (newX > 0 || newX < that.maxScrollX) {
|
---|
425 | newX = that.options.bounce ? that.x + (deltaX / 2) : newX >= 0 || that.maxScrollX >= 0 ? 0 : that.maxScrollX;
|
---|
426 | }
|
---|
427 | if (newY > that.minScrollY || newY < that.maxScrollY) {
|
---|
428 | newY = that.options.bounce ? that.y + (deltaY / 2) : newY >= that.minScrollY || that.maxScrollY >= 0 ? that.minScrollY : that.maxScrollY;
|
---|
429 | }
|
---|
430 |
|
---|
431 | that.distX += deltaX;
|
---|
432 | that.distY += deltaY;
|
---|
433 | that.absDistX = m.abs(that.distX);
|
---|
434 | that.absDistY = m.abs(that.distY);
|
---|
435 |
|
---|
436 | if (that.absDistX < 6 && that.absDistY < 6) {
|
---|
437 | return;
|
---|
438 | }
|
---|
439 |
|
---|
440 | // Lock direction
|
---|
441 | if (that.options.lockDirection) {
|
---|
442 | if (that.absDistX > that.absDistY + 5) {
|
---|
443 | newY = that.y;
|
---|
444 | deltaY = 0;
|
---|
445 | } else if (that.absDistY > that.absDistX + 5) {
|
---|
446 | newX = that.x;
|
---|
447 | deltaX = 0;
|
---|
448 | }
|
---|
449 | }
|
---|
450 |
|
---|
451 | that.moved = true;
|
---|
452 | that._pos(newX, newY);
|
---|
453 | that.dirX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0;
|
---|
454 | that.dirY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0;
|
---|
455 |
|
---|
456 | if (timestamp - that.startTime > 300) {
|
---|
457 | that.startTime = timestamp;
|
---|
458 | that.startX = that.x;
|
---|
459 | that.startY = that.y;
|
---|
460 | }
|
---|
461 |
|
---|
462 | if (that.options.onScrollMove) that.options.onScrollMove.call(that, e);
|
---|
463 | },
|
---|
464 |
|
---|
465 | _end: function (e) {
|
---|
466 | if (hasTouch && e.touches.length != 0) return;
|
---|
467 |
|
---|
468 | var that = this,
|
---|
469 | point = hasTouch ? e.changedTouches[0] : e,
|
---|
470 | target, ev,
|
---|
471 | momentumX = { dist:0, time:0 },
|
---|
472 | momentumY = { dist:0, time:0 },
|
---|
473 | duration = (e.timeStamp || Date.now()) - that.startTime,
|
---|
474 | newPosX = that.x,
|
---|
475 | newPosY = that.y,
|
---|
476 | distX, distY,
|
---|
477 | newDuration,
|
---|
478 | snap,
|
---|
479 | scale;
|
---|
480 |
|
---|
481 | that._unbind(MOVE_EV);
|
---|
482 | that._unbind(END_EV);
|
---|
483 | that._unbind(CANCEL_EV);
|
---|
484 |
|
---|
485 | if (that.options.onBeforeScrollEnd) that.options.onBeforeScrollEnd.call(that, e);
|
---|
486 |
|
---|
487 | if (that.zoomed) {
|
---|
488 | scale = that.scale * that.lastScale;
|
---|
489 | scale = Math.max(that.options.zoomMin, scale);
|
---|
490 | scale = Math.min(that.options.zoomMax, scale);
|
---|
491 | that.lastScale = scale / that.scale;
|
---|
492 | that.scale = scale;
|
---|
493 |
|
---|
494 | that.x = that.originX - that.originX * that.lastScale + that.x;
|
---|
495 | that.y = that.originY - that.originY * that.lastScale + that.y;
|
---|
496 |
|
---|
497 | that.scroller.style[vendor + 'TransitionDuration'] = '200ms';
|
---|
498 | that.scroller.style[vendor + 'Transform'] = trnOpen + that.x + 'px,' + that.y + 'px' + trnClose + ' scale(' + that.scale + ')';
|
---|
499 |
|
---|
500 | that.zoomed = false;
|
---|
501 | that.refresh();
|
---|
502 |
|
---|
503 | if (that.options.onZoomEnd) that.options.onZoomEnd.call(that, e);
|
---|
504 | return;
|
---|
505 | }
|
---|
506 |
|
---|
507 | if (!that.moved) {
|
---|
508 | if (hasTouch) {
|
---|
509 | if (that.doubleTapTimer && that.options.zoom) {
|
---|
510 | // Double tapped
|
---|
511 | clearTimeout(that.doubleTapTimer);
|
---|
512 | that.doubleTapTimer = null;
|
---|
513 | if (that.options.onZoomStart) that.options.onZoomStart.call(that, e);
|
---|
514 | that.zoom(that.pointX, that.pointY, that.scale == 1 ? that.options.doubleTapZoom : 1);
|
---|
515 | if (that.options.onZoomEnd) {
|
---|
516 | setTimeout(function() {
|
---|
517 | that.options.onZoomEnd.call(that, e);
|
---|
518 | }, 200); // 200 is default zoom duration
|
---|
519 | }
|
---|
520 | } else {
|
---|
521 | that.doubleTapTimer = setTimeout(function () {
|
---|
522 | that.doubleTapTimer = null;
|
---|
523 |
|
---|
524 | // Find the last touched element
|
---|
525 | target = point.target;
|
---|
526 | while (target.nodeType != 1) target = target.parentNode;
|
---|
527 |
|
---|
528 | if (target.tagName != 'SELECT' && target.tagName != 'INPUT' && target.tagName != 'TEXTAREA') {
|
---|
529 | ev = document.createEvent('MouseEvents');
|
---|
530 | ev.initMouseEvent('click', true, true, e.view, 1,
|
---|
531 | point.screenX, point.screenY, point.clientX, point.clientY,
|
---|
532 | e.ctrlKey, e.altKey, e.shiftKey, e.metaKey,
|
---|
533 | 0, null);
|
---|
534 | ev._fake = true;
|
---|
535 | target.dispatchEvent(ev);
|
---|
536 | }
|
---|
537 | }, that.options.zoom ? 250 : 0);
|
---|
538 | }
|
---|
539 | }
|
---|
540 |
|
---|
541 | that._resetPos(200);
|
---|
542 |
|
---|
543 | if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e);
|
---|
544 | return;
|
---|
545 | }
|
---|
546 |
|
---|
547 | if (duration < 300 && that.options.momentum) {
|
---|
548 | momentumX = newPosX ? that._momentum(newPosX - that.startX, duration, -that.x, that.scrollerW - that.wrapperW + that.x, that.options.bounce ? that.wrapperW : 0) : momentumX;
|
---|
549 | momentumY = newPosY ? that._momentum(newPosY - that.startY, duration, -that.y, (that.maxScrollY < 0 ? that.scrollerH - that.wrapperH + that.y - that.minScrollY : 0), that.options.bounce ? that.wrapperH : 0) : momentumY;
|
---|
550 |
|
---|
551 | newPosX = that.x + momentumX.dist;
|
---|
552 | newPosY = that.y + momentumY.dist;
|
---|
553 |
|
---|
554 | if ((that.x > 0 && newPosX > 0) || (that.x < that.maxScrollX && newPosX < that.maxScrollX)) momentumX = { dist:0, time:0 };
|
---|
555 | if ((that.y > that.minScrollY && newPosY > that.minScrollY) || (that.y < that.maxScrollY && newPosY < that.maxScrollY)) momentumY = { dist:0, time:0 };
|
---|
556 | }
|
---|
557 |
|
---|
558 | if (momentumX.dist || momentumY.dist) {
|
---|
559 | newDuration = m.max(m.max(momentumX.time, momentumY.time), 10);
|
---|
560 |
|
---|
561 | // Do we need to snap?
|
---|
562 | if (that.options.snap) {
|
---|
563 | distX = newPosX - that.absStartX;
|
---|
564 | distY = newPosY - that.absStartY;
|
---|
565 | if (m.abs(distX) < that.options.snapThreshold && m.abs(distY) < that.options.snapThreshold) { that.scrollTo(that.absStartX, that.absStartY, 200); }
|
---|
566 | else {
|
---|
567 | snap = that._snap(newPosX, newPosY);
|
---|
568 | newPosX = snap.x;
|
---|
569 | newPosY = snap.y;
|
---|
570 | newDuration = m.max(snap.time, newDuration);
|
---|
571 | }
|
---|
572 | }
|
---|
573 |
|
---|
574 | that.scrollTo(mround(newPosX), mround(newPosY), newDuration);
|
---|
575 |
|
---|
576 | if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e);
|
---|
577 | return;
|
---|
578 | }
|
---|
579 |
|
---|
580 | // Do we need to snap?
|
---|
581 | if (that.options.snap) {
|
---|
582 | distX = newPosX - that.absStartX;
|
---|
583 | distY = newPosY - that.absStartY;
|
---|
584 | if (m.abs(distX) < that.options.snapThreshold && m.abs(distY) < that.options.snapThreshold) that.scrollTo(that.absStartX, that.absStartY, 200);
|
---|
585 | else {
|
---|
586 | snap = that._snap(that.x, that.y);
|
---|
587 | if (snap.x != that.x || snap.y != that.y) that.scrollTo(snap.x, snap.y, snap.time);
|
---|
588 | }
|
---|
589 |
|
---|
590 | if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e);
|
---|
591 | return;
|
---|
592 | }
|
---|
593 |
|
---|
594 | that._resetPos(200);
|
---|
595 | if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e);
|
---|
596 | },
|
---|
597 |
|
---|
598 | _resetPos: function (time) {
|
---|
599 | var that = this,
|
---|
600 | resetX = that.x >= 0 ? 0 : that.x < that.maxScrollX ? that.maxScrollX : that.x,
|
---|
601 | resetY = that.y >= that.minScrollY || that.maxScrollY > 0 ? that.minScrollY : that.y < that.maxScrollY ? that.maxScrollY : that.y;
|
---|
602 |
|
---|
603 | if (resetX == that.x && resetY == that.y) {
|
---|
604 | if (that.moved) {
|
---|
605 | that.moved = false;
|
---|
606 | if (that.options.onScrollEnd) that.options.onScrollEnd.call(that); // Execute custom code on scroll end
|
---|
607 | }
|
---|
608 |
|
---|
609 | if (that.hScrollbar && that.options.hideScrollbar) {
|
---|
610 | if (vendor == 'webkit') that.hScrollbarWrapper.style[vendor + 'TransitionDelay'] = '300ms';
|
---|
611 | that.hScrollbarWrapper.style.opacity = '0';
|
---|
612 | }
|
---|
613 | if (that.vScrollbar && that.options.hideScrollbar) {
|
---|
614 | if (vendor == 'webkit') that.vScrollbarWrapper.style[vendor + 'TransitionDelay'] = '300ms';
|
---|
615 | that.vScrollbarWrapper.style.opacity = '0';
|
---|
616 | }
|
---|
617 |
|
---|
618 | return;
|
---|
619 | }
|
---|
620 |
|
---|
621 | that.scrollTo(resetX, resetY, time || 0);
|
---|
622 | },
|
---|
623 |
|
---|
624 | _wheel: function (e) {
|
---|
625 | var that = this,
|
---|
626 | wheelDeltaX, wheelDeltaY,
|
---|
627 | deltaX, deltaY,
|
---|
628 | deltaScale;
|
---|
629 |
|
---|
630 | if ('wheelDeltaX' in e) {
|
---|
631 | wheelDeltaX = e.wheelDeltaX / 12;
|
---|
632 | wheelDeltaY = e.wheelDeltaY / 12;
|
---|
633 | } else if('wheelDelta' in e) {
|
---|
634 | wheelDeltaX = wheelDeltaY = e.wheelDelta / 12;
|
---|
635 | } else if ('detail' in e) {
|
---|
636 | wheelDeltaX = wheelDeltaY = -e.detail * 3;
|
---|
637 | } else {
|
---|
638 | return;
|
---|
639 | }
|
---|
640 |
|
---|
641 | if (that.options.wheelAction == 'zoom') {
|
---|
642 | deltaScale = that.scale * Math.pow(2, 1/3 * (wheelDeltaY ? wheelDeltaY / Math.abs(wheelDeltaY) : 0));
|
---|
643 | if (deltaScale < that.options.zoomMin) deltaScale = that.options.zoomMin;
|
---|
644 | if (deltaScale > that.options.zoomMax) deltaScale = that.options.zoomMax;
|
---|
645 |
|
---|
646 | if (deltaScale != that.scale) {
|
---|
647 | if (!that.wheelZoomCount && that.options.onZoomStart) that.options.onZoomStart.call(that, e);
|
---|
648 | that.wheelZoomCount++;
|
---|
649 |
|
---|
650 | that.zoom(e.pageX, e.pageY, deltaScale, 400);
|
---|
651 |
|
---|
652 | setTimeout(function() {
|
---|
653 | that.wheelZoomCount--;
|
---|
654 | if (!that.wheelZoomCount && that.options.onZoomEnd) that.options.onZoomEnd.call(that, e);
|
---|
655 | }, 400);
|
---|
656 | }
|
---|
657 |
|
---|
658 | return;
|
---|
659 | }
|
---|
660 |
|
---|
661 | deltaX = that.x + wheelDeltaX;
|
---|
662 | deltaY = that.y + wheelDeltaY;
|
---|
663 |
|
---|
664 | if (deltaX > 0) deltaX = 0;
|
---|
665 | else if (deltaX < that.maxScrollX) deltaX = that.maxScrollX;
|
---|
666 |
|
---|
667 | if (deltaY > that.minScrollY) deltaY = that.minScrollY;
|
---|
668 | else if (deltaY < that.maxScrollY) deltaY = that.maxScrollY;
|
---|
669 |
|
---|
670 | if(that.maxScrollY < 0){
|
---|
671 | that.scrollTo(deltaX, deltaY, 0);
|
---|
672 | }
|
---|
673 | },
|
---|
674 |
|
---|
675 | _mouseout: function (e) {
|
---|
676 | var t = e.relatedTarget;
|
---|
677 |
|
---|
678 | if (!t) {
|
---|
679 | this._end(e);
|
---|
680 | return;
|
---|
681 | }
|
---|
682 |
|
---|
683 | while (t = t.parentNode) if (t == this.wrapper) return;
|
---|
684 |
|
---|
685 | this._end(e);
|
---|
686 | },
|
---|
687 |
|
---|
688 | _transitionEnd: function (e) {
|
---|
689 | var that = this;
|
---|
690 |
|
---|
691 | if (e.target != that.scroller) return;
|
---|
692 |
|
---|
693 | that._unbind('webkitTransitionEnd');
|
---|
694 |
|
---|
695 | that._startAni();
|
---|
696 | },
|
---|
697 |
|
---|
698 |
|
---|
699 | /**
|
---|
700 | *
|
---|
701 | * Utilities
|
---|
702 | *
|
---|
703 | */
|
---|
704 | _startAni: function () {
|
---|
705 | var that = this,
|
---|
706 | startX = that.x, startY = that.y,
|
---|
707 | startTime = Date.now(),
|
---|
708 | step, easeOut,
|
---|
709 | animate;
|
---|
710 |
|
---|
711 | if (that.animating) return;
|
---|
712 |
|
---|
713 | if (!that.steps.length) {
|
---|
714 | that._resetPos(400);
|
---|
715 | return;
|
---|
716 | }
|
---|
717 |
|
---|
718 | step = that.steps.shift();
|
---|
719 |
|
---|
720 | if (step.x == startX && step.y == startY) step.time = 0;
|
---|
721 |
|
---|
722 | that.animating = true;
|
---|
723 | that.moved = true;
|
---|
724 |
|
---|
725 | if (that.options.useTransition) {
|
---|
726 | that._transitionTime(step.time);
|
---|
727 | that._pos(step.x, step.y);
|
---|
728 | that.animating = false;
|
---|
729 | if (step.time) that._bind('webkitTransitionEnd');
|
---|
730 | else that._resetPos(0);
|
---|
731 | return;
|
---|
732 | }
|
---|
733 |
|
---|
734 | animate = function () {
|
---|
735 | var now = Date.now(),
|
---|
736 | newX, newY;
|
---|
737 |
|
---|
738 | if (now >= startTime + step.time) {
|
---|
739 | that._pos(step.x, step.y);
|
---|
740 | that.animating = false;
|
---|
741 | if (that.options.onAnimationEnd) that.options.onAnimationEnd.call(that); // Execute custom code on animation end
|
---|
742 | that._startAni();
|
---|
743 | return;
|
---|
744 | }
|
---|
745 |
|
---|
746 | now = (now - startTime) / step.time - 1;
|
---|
747 | easeOut = m.sqrt(1 - now * now);
|
---|
748 | newX = (step.x - startX) * easeOut + startX;
|
---|
749 | newY = (step.y - startY) * easeOut + startY;
|
---|
750 | that._pos(newX, newY);
|
---|
751 | if (that.animating) that.aniTime = nextFrame(animate);
|
---|
752 | };
|
---|
753 |
|
---|
754 | animate();
|
---|
755 | },
|
---|
756 |
|
---|
757 | _transitionTime: function (time) {
|
---|
758 | time += 'ms';
|
---|
759 | this.scroller.style[vendor + 'TransitionDuration'] = time;
|
---|
760 | if (this.hScrollbar) this.hScrollbarIndicator.style[vendor + 'TransitionDuration'] = time;
|
---|
761 | if (this.vScrollbar) this.vScrollbarIndicator.style[vendor + 'TransitionDuration'] = time;
|
---|
762 | },
|
---|
763 |
|
---|
764 | _momentum: function (dist, time, maxDistUpper, maxDistLower, size) {
|
---|
765 | var deceleration = 0.0006,
|
---|
766 | speed = m.abs(dist) / time,
|
---|
767 | newDist = (speed * speed) / (2 * deceleration),
|
---|
768 | newTime = 0, outsideDist = 0;
|
---|
769 |
|
---|
770 | // Proportinally reduce speed if we are outside of the boundaries
|
---|
771 | if (dist > 0 && newDist > maxDistUpper) {
|
---|
772 | outsideDist = size / (6 / (newDist / speed * deceleration));
|
---|
773 | maxDistUpper = maxDistUpper + outsideDist;
|
---|
774 | speed = speed * maxDistUpper / newDist;
|
---|
775 | newDist = maxDistUpper;
|
---|
776 | } else if (dist < 0 && newDist > maxDistLower) {
|
---|
777 | outsideDist = size / (6 / (newDist / speed * deceleration));
|
---|
778 | maxDistLower = maxDistLower + outsideDist;
|
---|
779 | speed = speed * maxDistLower / newDist;
|
---|
780 | newDist = maxDistLower;
|
---|
781 | }
|
---|
782 |
|
---|
783 | newDist = newDist * (dist < 0 ? -1 : 1);
|
---|
784 | newTime = speed / deceleration;
|
---|
785 |
|
---|
786 | return { dist: newDist, time: mround(newTime) };
|
---|
787 | },
|
---|
788 |
|
---|
789 | _offset: function (el) {
|
---|
790 | var left = -el.offsetLeft,
|
---|
791 | top = -el.offsetTop;
|
---|
792 |
|
---|
793 | while (el = el.offsetParent) {
|
---|
794 | left -= el.offsetLeft;
|
---|
795 | top -= el.offsetTop;
|
---|
796 | }
|
---|
797 |
|
---|
798 | if (el != this.wrapper) {
|
---|
799 | left *= this.scale;
|
---|
800 | top *= this.scale;
|
---|
801 | }
|
---|
802 |
|
---|
803 | return { left: left, top: top };
|
---|
804 | },
|
---|
805 |
|
---|
806 | _snap: function (x, y) {
|
---|
807 | var that = this,
|
---|
808 | i, l,
|
---|
809 | page, time,
|
---|
810 | sizeX, sizeY;
|
---|
811 |
|
---|
812 | // Check page X
|
---|
813 | page = that.pagesX.length - 1;
|
---|
814 | for (i=0, l=that.pagesX.length; i<l; i++) {
|
---|
815 | if (x >= that.pagesX[i]) {
|
---|
816 | page = i;
|
---|
817 | break;
|
---|
818 | }
|
---|
819 | }
|
---|
820 | if (page == that.currPageX && page > 0 && that.dirX < 0) page--;
|
---|
821 | x = that.pagesX[page];
|
---|
822 | sizeX = m.abs(x - that.pagesX[that.currPageX]);
|
---|
823 | sizeX = sizeX ? m.abs(that.x - x) / sizeX * 500 : 0;
|
---|
824 | that.currPageX = page;
|
---|
825 |
|
---|
826 | // Check page Y
|
---|
827 | page = that.pagesY.length-1;
|
---|
828 | for (i=0; i<page; i++) {
|
---|
829 | if (y >= that.pagesY[i]) {
|
---|
830 | page = i;
|
---|
831 | break;
|
---|
832 | }
|
---|
833 | }
|
---|
834 | if (page == that.currPageY && page > 0 && that.dirY < 0) page--;
|
---|
835 | y = that.pagesY[page];
|
---|
836 | sizeY = m.abs(y - that.pagesY[that.currPageY]);
|
---|
837 | sizeY = sizeY ? m.abs(that.y - y) / sizeY * 500 : 0;
|
---|
838 | that.currPageY = page;
|
---|
839 |
|
---|
840 | // Snap with constant speed (proportional duration)
|
---|
841 | time = mround(m.max(sizeX, sizeY)) || 200;
|
---|
842 |
|
---|
843 | return { x: x, y: y, time: time };
|
---|
844 | },
|
---|
845 |
|
---|
846 | _bind: function (type, el, bubble) {
|
---|
847 | (el || this.scroller).addEventListener(type, this, !!bubble);
|
---|
848 | },
|
---|
849 |
|
---|
850 | _unbind: function (type, el, bubble) {
|
---|
851 | (el || this.scroller).removeEventListener(type, this, !!bubble);
|
---|
852 | },
|
---|
853 |
|
---|
854 |
|
---|
855 | /**
|
---|
856 | *
|
---|
857 | * Public methods
|
---|
858 | *
|
---|
859 | */
|
---|
860 | destroy: function () {
|
---|
861 | var that = this;
|
---|
862 |
|
---|
863 | that.scroller.style[vendor + 'Transform'] = '';
|
---|
864 |
|
---|
865 | // Remove the scrollbars
|
---|
866 | that.hScrollbar = false;
|
---|
867 | that.vScrollbar = false;
|
---|
868 | that._scrollbar('h');
|
---|
869 | that._scrollbar('v');
|
---|
870 |
|
---|
871 | // Remove the event listeners
|
---|
872 | that._unbind(RESIZE_EV, window);
|
---|
873 | that._unbind(START_EV);
|
---|
874 | that._unbind(MOVE_EV);
|
---|
875 | that._unbind(END_EV);
|
---|
876 | that._unbind(CANCEL_EV);
|
---|
877 |
|
---|
878 | if (!that.options.hasTouch) {
|
---|
879 | that._unbind('mouseout', that.wrapper);
|
---|
880 | that._unbind(WHEEL_EV);
|
---|
881 | }
|
---|
882 |
|
---|
883 | if (that.options.useTransition) that._unbind('webkitTransitionEnd');
|
---|
884 |
|
---|
885 | if (that.options.checkDOMChanges) clearInterval(that.checkDOMTime);
|
---|
886 |
|
---|
887 | if (that.options.onDestroy) that.options.onDestroy.call(that);
|
---|
888 | },
|
---|
889 |
|
---|
890 | refresh: function () {
|
---|
891 | var that = this,
|
---|
892 | offset,
|
---|
893 | i, l,
|
---|
894 | els,
|
---|
895 | pos = 0,
|
---|
896 | page = 0;
|
---|
897 |
|
---|
898 | if (that.scale < that.options.zoomMin) that.scale = that.options.zoomMin;
|
---|
899 | that.wrapperW = that.wrapper.clientWidth || 1;
|
---|
900 | that.wrapperH = that.wrapper.clientHeight || 1;
|
---|
901 |
|
---|
902 | that.minScrollY = -that.options.topOffset || 0;
|
---|
903 | that.scrollerW = mround(that.scroller.offsetWidth * that.scale);
|
---|
904 | that.scrollerH = mround((that.scroller.offsetHeight + that.minScrollY) * that.scale);
|
---|
905 | that.maxScrollX = that.wrapperW - that.scrollerW;
|
---|
906 | that.maxScrollY = that.wrapperH - that.scrollerH + that.minScrollY;
|
---|
907 | that.dirX = 0;
|
---|
908 | that.dirY = 0;
|
---|
909 |
|
---|
910 | if (that.options.onRefresh) that.options.onRefresh.call(that);
|
---|
911 |
|
---|
912 | that.hScroll = that.options.hScroll && that.maxScrollX < 0;
|
---|
913 | that.vScroll = that.options.vScroll && (!that.options.bounceLock && !that.hScroll || that.scrollerH > that.wrapperH);
|
---|
914 |
|
---|
915 | that.hScrollbar = that.hScroll && that.options.hScrollbar;
|
---|
916 | that.vScrollbar = that.vScroll && that.options.vScrollbar && that.scrollerH > that.wrapperH;
|
---|
917 |
|
---|
918 | offset = that._offset(that.wrapper);
|
---|
919 | that.wrapperOffsetLeft = -offset.left;
|
---|
920 | that.wrapperOffsetTop = -offset.top;
|
---|
921 |
|
---|
922 | // Prepare snap
|
---|
923 | if (typeof that.options.snap == 'string') {
|
---|
924 | that.pagesX = [];
|
---|
925 | that.pagesY = [];
|
---|
926 | els = that.scroller.querySelectorAll(that.options.snap);
|
---|
927 | for (i=0, l=els.length; i<l; i++) {
|
---|
928 | pos = that._offset(els[i]);
|
---|
929 | pos.left += that.wrapperOffsetLeft;
|
---|
930 | pos.top += that.wrapperOffsetTop;
|
---|
931 | that.pagesX[i] = pos.left < that.maxScrollX ? that.maxScrollX : pos.left * that.scale;
|
---|
932 | that.pagesY[i] = pos.top < that.maxScrollY ? that.maxScrollY : pos.top * that.scale;
|
---|
933 | }
|
---|
934 | } else if (that.options.snap) {
|
---|
935 | that.pagesX = [];
|
---|
936 | while (pos >= that.maxScrollX) {
|
---|
937 | that.pagesX[page] = pos;
|
---|
938 | pos = pos - that.wrapperW;
|
---|
939 | page++;
|
---|
940 | }
|
---|
941 | if (that.maxScrollX%that.wrapperW) that.pagesX[that.pagesX.length] = that.maxScrollX - that.pagesX[that.pagesX.length-1] + that.pagesX[that.pagesX.length-1];
|
---|
942 |
|
---|
943 | pos = 0;
|
---|
944 | page = 0;
|
---|
945 | that.pagesY = [];
|
---|
946 | while (pos >= that.maxScrollY) {
|
---|
947 | that.pagesY[page] = pos;
|
---|
948 | pos = pos - that.wrapperH;
|
---|
949 | page++;
|
---|
950 | }
|
---|
951 | if (that.maxScrollY%that.wrapperH) that.pagesY[that.pagesY.length] = that.maxScrollY - that.pagesY[that.pagesY.length-1] + that.pagesY[that.pagesY.length-1];
|
---|
952 | }
|
---|
953 |
|
---|
954 | // Prepare the scrollbars
|
---|
955 | that._scrollbar('h');
|
---|
956 | that._scrollbar('v');
|
---|
957 |
|
---|
958 | if (!that.zoomed) {
|
---|
959 | that.scroller.style[vendor + 'TransitionDuration'] = '0';
|
---|
960 | that._resetPos(200);
|
---|
961 | }
|
---|
962 | },
|
---|
963 |
|
---|
964 | scrollTo: function (x, y, time, relative) {
|
---|
965 | var that = this,
|
---|
966 | step = x,
|
---|
967 | i, l;
|
---|
968 |
|
---|
969 | that.stop();
|
---|
970 |
|
---|
971 | if (!step.length) step = [{ x: x, y: y, time: time, relative: relative }];
|
---|
972 |
|
---|
973 | for (i=0, l=step.length; i<l; i++) {
|
---|
974 | if (step[i].relative) { step[i].x = that.x - step[i].x; step[i].y = that.y - step[i].y; }
|
---|
975 | that.steps.push({ x: step[i].x, y: step[i].y, time: step[i].time || 0 });
|
---|
976 | }
|
---|
977 |
|
---|
978 | that._startAni();
|
---|
979 | },
|
---|
980 |
|
---|
981 | scrollToElement: function (el, time) {
|
---|
982 | var that = this, pos;
|
---|
983 | el = el.nodeType ? el : that.scroller.querySelector(el);
|
---|
984 | if (!el) return;
|
---|
985 |
|
---|
986 | pos = that._offset(el);
|
---|
987 | pos.left += that.wrapperOffsetLeft;
|
---|
988 | pos.top += that.wrapperOffsetTop;
|
---|
989 |
|
---|
990 | pos.left = pos.left > 0 ? 0 : pos.left < that.maxScrollX ? that.maxScrollX : pos.left;
|
---|
991 | pos.top = pos.top > that.minScrollY ? that.minScrollY : pos.top < that.maxScrollY ? that.maxScrollY : pos.top;
|
---|
992 | time = time === undefined ? m.max(m.abs(pos.left)*2, m.abs(pos.top)*2) : time;
|
---|
993 |
|
---|
994 | that.scrollTo(pos.left, pos.top, time);
|
---|
995 | },
|
---|
996 |
|
---|
997 | scrollToPage: function (pageX, pageY, time) {
|
---|
998 | var that = this, x, y;
|
---|
999 |
|
---|
1000 | time = time === undefined ? 400 : time;
|
---|
1001 |
|
---|
1002 | if (that.options.onScrollStart) that.options.onScrollStart.call(that);
|
---|
1003 |
|
---|
1004 | if (that.options.snap) {
|
---|
1005 | pageX = pageX == 'next' ? that.currPageX+1 : pageX == 'prev' ? that.currPageX-1 : pageX;
|
---|
1006 | pageY = pageY == 'next' ? that.currPageY+1 : pageY == 'prev' ? that.currPageY-1 : pageY;
|
---|
1007 |
|
---|
1008 | pageX = pageX < 0 ? 0 : pageX > that.pagesX.length-1 ? that.pagesX.length-1 : pageX;
|
---|
1009 | pageY = pageY < 0 ? 0 : pageY > that.pagesY.length-1 ? that.pagesY.length-1 : pageY;
|
---|
1010 |
|
---|
1011 | that.currPageX = pageX;
|
---|
1012 | that.currPageY = pageY;
|
---|
1013 | x = that.pagesX[pageX];
|
---|
1014 | y = that.pagesY[pageY];
|
---|
1015 | } else {
|
---|
1016 | x = -that.wrapperW * pageX;
|
---|
1017 | y = -that.wrapperH * pageY;
|
---|
1018 | if (x < that.maxScrollX) x = that.maxScrollX;
|
---|
1019 | if (y < that.maxScrollY) y = that.maxScrollY;
|
---|
1020 | }
|
---|
1021 |
|
---|
1022 | that.scrollTo(x, y, time);
|
---|
1023 | },
|
---|
1024 |
|
---|
1025 | disable: function () {
|
---|
1026 | this.stop();
|
---|
1027 | this._resetPos(0);
|
---|
1028 | this.enabled = false;
|
---|
1029 |
|
---|
1030 | // If disabled after touchstart we make sure that there are no left over events
|
---|
1031 | this._unbind(MOVE_EV);
|
---|
1032 | this._unbind(END_EV);
|
---|
1033 | this._unbind(CANCEL_EV);
|
---|
1034 | },
|
---|
1035 |
|
---|
1036 | enable: function () {
|
---|
1037 | this.enabled = true;
|
---|
1038 | },
|
---|
1039 |
|
---|
1040 | stop: function () {
|
---|
1041 | if (this.options.useTransition) this._unbind('webkitTransitionEnd');
|
---|
1042 | else cancelFrame(this.aniTime);
|
---|
1043 | this.steps = [];
|
---|
1044 | this.moved = false;
|
---|
1045 | this.animating = false;
|
---|
1046 | },
|
---|
1047 |
|
---|
1048 | zoom: function (x, y, scale, time) {
|
---|
1049 | var that = this,
|
---|
1050 | relScale = scale / that.scale;
|
---|
1051 |
|
---|
1052 | if (!that.options.useTransform) return;
|
---|
1053 |
|
---|
1054 | that.zoomed = true;
|
---|
1055 | time = time === undefined ? 200 : time;
|
---|
1056 | x = x - that.wrapperOffsetLeft - that.x;
|
---|
1057 | y = y - that.wrapperOffsetTop - that.y;
|
---|
1058 | that.x = x - x * relScale + that.x;
|
---|
1059 | that.y = y - y * relScale + that.y;
|
---|
1060 |
|
---|
1061 | that.scale = scale;
|
---|
1062 | that.refresh();
|
---|
1063 |
|
---|
1064 | that.x = that.x > 0 ? 0 : that.x < that.maxScrollX ? that.maxScrollX : that.x;
|
---|
1065 | that.y = that.y > that.minScrollY ? that.minScrollY : that.y < that.maxScrollY ? that.maxScrollY : that.y;
|
---|
1066 |
|
---|
1067 | that.scroller.style[vendor + 'TransitionDuration'] = time + 'ms';
|
---|
1068 | that.scroller.style[vendor + 'Transform'] = trnOpen + that.x + 'px,' + that.y + 'px' + trnClose + ' scale(' + scale + ')';
|
---|
1069 | that.zoomed = false;
|
---|
1070 | },
|
---|
1071 |
|
---|
1072 | isReady: function () {
|
---|
1073 | return !this.moved && !this.zoomed && !this.animating;
|
---|
1074 | }
|
---|
1075 | };
|
---|
1076 |
|
---|
1077 | if (typeof exports !== 'undefined') exports.iScroll = iScroll;
|
---|
1078 | else window.iScroll = iScroll;
|
---|
1079 |
|
---|
1080 | })();
|
---|