| 提交 | 用户 | age | ||
| a6a76f | 1 | /*! iScroll v5.1.3 ~ (c) 2008-2014 Matteo Spinelli ~ http://cubiq.org/license */ |
| F | 2 | (function (window, document, Math) { |
| 3 | var rAF = window.requestAnimationFrame || | |
| 4 | window.webkitRequestAnimationFrame || | |
| 5 | window.mozRequestAnimationFrame || | |
| 6 | window.oRequestAnimationFrame || | |
| 7 | window.msRequestAnimationFrame || | |
| 8 | function (callback) { window.setTimeout(callback, 1000 / 60); }; | |
| 9 | ||
| 10 | var utils = (function () { | |
| 11 | var me = {}; | |
| 12 | ||
| 13 | var _elementStyle = document.createElement('div').style; | |
| 14 | var _vendor = (function () { | |
| 15 | var vendors = ['t', 'webkitT', 'MozT', 'msT', 'OT'], | |
| 16 | transform, | |
| 17 | i = 0, | |
| 18 | l = vendors.length; | |
| 19 | ||
| 20 | for ( ; i < l; i++ ) { | |
| 21 | transform = vendors[i] + 'ransform'; | |
| 22 | if ( transform in _elementStyle ) return vendors[i].substr(0, vendors[i].length-1); | |
| 23 | } | |
| 24 | ||
| 25 | return false; | |
| 26 | })(); | |
| 27 | ||
| 28 | function _prefixStyle (style) { | |
| 29 | if ( _vendor === false ) return false; | |
| 30 | if ( _vendor === '' ) return style; | |
| 31 | return _vendor + style.charAt(0).toUpperCase() + style.substr(1); | |
| 32 | } | |
| 33 | ||
| 34 | me.getTime = Date.now || function getTime () { return new Date().getTime(); }; | |
| 35 | ||
| 36 | me.extend = function (target, obj) { | |
| 37 | for ( var i in obj ) { | |
| 38 | target[i] = obj[i]; | |
| 39 | } | |
| 40 | }; | |
| 41 | ||
| 42 | me.addEvent = function (el, type, fn, capture) { | |
| 43 | el.addEventListener(type, fn, !!capture); | |
| 44 | }; | |
| 45 | ||
| 46 | me.removeEvent = function (el, type, fn, capture) { | |
| 47 | el.removeEventListener(type, fn, !!capture); | |
| 48 | }; | |
| 49 | ||
| 50 | me.prefixPointerEvent = function (pointerEvent) { | |
| 51 | return window.MSPointerEvent ? | |
| 52 | 'MSPointer' + pointerEvent.charAt(9).toUpperCase() + pointerEvent.substr(10): | |
| 53 | pointerEvent; | |
| 54 | }; | |
| 55 | ||
| 56 | me.momentum = function (current, start, time, lowerMargin, wrapperSize, deceleration) { | |
| 57 | var distance = current - start, | |
| 58 | speed = Math.abs(distance) / time, | |
| 59 | destination, | |
| 60 | duration; | |
| 61 | ||
| 62 | deceleration = deceleration === undefined ? 0.0006 : deceleration; | |
| 63 | ||
| 64 | destination = current + ( speed * speed ) / ( 2 * deceleration ) * ( distance < 0 ? -1 : 1 ); | |
| 65 | duration = speed / deceleration; | |
| 66 | ||
| 67 | if ( destination < lowerMargin ) { | |
| 68 | destination = wrapperSize ? lowerMargin - ( wrapperSize / 2.5 * ( speed / 8 ) ) : lowerMargin; | |
| 69 | distance = Math.abs(destination - current); | |
| 70 | duration = distance / speed; | |
| 71 | } else if ( destination > 0 ) { | |
| 72 | destination = wrapperSize ? wrapperSize / 2.5 * ( speed / 8 ) : 0; | |
| 73 | distance = Math.abs(current) + destination; | |
| 74 | duration = distance / speed; | |
| 75 | } | |
| 76 | ||
| 77 | return { | |
| 78 | destination: Math.round(destination), | |
| 79 | duration: duration | |
| 80 | }; | |
| 81 | }; | |
| 82 | ||
| 83 | var _transform = _prefixStyle('transform'); | |
| 84 | ||
| 85 | me.extend(me, { | |
| 86 | hasTransform: _transform !== false, | |
| 87 | hasPerspective: _prefixStyle('perspective') in _elementStyle, | |
| 88 | hasTouch: 'ontouchstart' in window, | |
| 89 | hasPointer: window.PointerEvent || window.MSPointerEvent, // IE10 is prefixed | |
| 90 | hasTransition: _prefixStyle('transition') in _elementStyle | |
| 91 | }); | |
| 92 | ||
| 93 | // This should find all Android browsers lower than build 535.19 (both stock browser and webview) | |
| 94 | me.isBadAndroid = /Android /.test(window.navigator.appVersion) && !(/Chrome\/\d/.test(window.navigator.appVersion)); | |
| 95 | ||
| 96 | me.extend(me.style = {}, { | |
| 97 | transform: _transform, | |
| 98 | transitionTimingFunction: _prefixStyle('transitionTimingFunction'), | |
| 99 | transitionDuration: _prefixStyle('transitionDuration'), | |
| 100 | transitionDelay: _prefixStyle('transitionDelay'), | |
| 101 | transformOrigin: _prefixStyle('transformOrigin') | |
| 102 | }); | |
| 103 | ||
| 104 | me.hasClass = function (e, c) { | |
| 105 | var re = new RegExp("(^|\\s)" + c + "(\\s|$)"); | |
| 106 | return re.test(e.className); | |
| 107 | }; | |
| 108 | ||
| 109 | me.addClass = function (e, c) { | |
| 110 | if ( me.hasClass(e, c) ) { | |
| 111 | return; | |
| 112 | } | |
| 113 | ||
| 114 | var newclass = e.className.split(' '); | |
| 115 | newclass.push(c); | |
| 116 | e.className = newclass.join(' '); | |
| 117 | }; | |
| 118 | ||
| 119 | me.removeClass = function (e, c) { | |
| 120 | if ( !me.hasClass(e, c) ) { | |
| 121 | return; | |
| 122 | } | |
| 123 | ||
| 124 | var re = new RegExp("(^|\\s)" + c + "(\\s|$)", 'g'); | |
| 125 | e.className = e.className.replace(re, ' '); | |
| 126 | }; | |
| 127 | ||
| 128 | me.offset = function (el) { | |
| 129 | var left = -el.offsetLeft, | |
| 130 | top = -el.offsetTop; | |
| 131 | ||
| 132 | // jshint -W084 | |
| 133 | while (el = el.offsetParent) { | |
| 134 | left -= el.offsetLeft; | |
| 135 | top -= el.offsetTop; | |
| 136 | } | |
| 137 | // jshint +W084 | |
| 138 | ||
| 139 | return { | |
| 140 | left: left, | |
| 141 | top: top | |
| 142 | }; | |
| 143 | }; | |
| 144 | ||
| 145 | me.preventDefaultException = function (el, exceptions) { | |
| 146 | for ( var i in exceptions ) { | |
| 147 | if ( exceptions[i].test(el[i]) ) { | |
| 148 | return true; | |
| 149 | } | |
| 150 | } | |
| 151 | ||
| 152 | return false; | |
| 153 | }; | |
| 154 | ||
| 155 | me.extend(me.eventType = {}, { | |
| 156 | touchstart: 1, | |
| 157 | touchmove: 1, | |
| 158 | touchend: 1, | |
| 159 | ||
| 160 | mousedown: 2, | |
| 161 | mousemove: 2, | |
| 162 | mouseup: 2, | |
| 163 | ||
| 164 | pointerdown: 3, | |
| 165 | pointermove: 3, | |
| 166 | pointerup: 3, | |
| 167 | ||
| 168 | MSPointerDown: 3, | |
| 169 | MSPointerMove: 3, | |
| 170 | MSPointerUp: 3 | |
| 171 | }); | |
| 172 | ||
| 173 | me.extend(me.ease = {}, { | |
| 174 | quadratic: { | |
| 175 | style: 'cubic-bezier(0.25, 0.46, 0.45, 0.94)', | |
| 176 | fn: function (k) { | |
| 177 | return k * ( 2 - k ); | |
| 178 | } | |
| 179 | }, | |
| 180 | circular: { | |
| 181 | style: 'cubic-bezier(0.1, 0.57, 0.1, 1)', // Not properly "circular" but this looks better, it should be (0.075, 0.82, 0.165, 1) | |
| 182 | fn: function (k) { | |
| 183 | return Math.sqrt( 1 - ( --k * k ) ); | |
| 184 | } | |
| 185 | }, | |
| 186 | back: { | |
| 187 | style: 'cubic-bezier(0.175, 0.885, 0.32, 1.275)', | |
| 188 | fn: function (k) { | |
| 189 | var b = 4; | |
| 190 | return ( k = k - 1 ) * k * ( ( b + 1 ) * k + b ) + 1; | |
| 191 | } | |
| 192 | }, | |
| 193 | bounce: { | |
| 194 | style: '', | |
| 195 | fn: function (k) { | |
| 196 | if ( ( k /= 1 ) < ( 1 / 2.75 ) ) { | |
| 197 | return 7.5625 * k * k; | |
| 198 | } else if ( k < ( 2 / 2.75 ) ) { | |
| 199 | return 7.5625 * ( k -= ( 1.5 / 2.75 ) ) * k + 0.75; | |
| 200 | } else if ( k < ( 2.5 / 2.75 ) ) { | |
| 201 | return 7.5625 * ( k -= ( 2.25 / 2.75 ) ) * k + 0.9375; | |
| 202 | } else { | |
| 203 | return 7.5625 * ( k -= ( 2.625 / 2.75 ) ) * k + 0.984375; | |
| 204 | } | |
| 205 | } | |
| 206 | }, | |
| 207 | elastic: { | |
| 208 | style: '', | |
| 209 | fn: function (k) { | |
| 210 | var f = 0.22, | |
| 211 | e = 0.4; | |
| 212 | ||
| 213 | if ( k === 0 ) { return 0; } | |
| 214 | if ( k == 1 ) { return 1; } | |
| 215 | ||
| 216 | return ( e * Math.pow( 2, - 10 * k ) * Math.sin( ( k - f / 4 ) * ( 2 * Math.PI ) / f ) + 1 ); | |
| 217 | } | |
| 218 | } | |
| 219 | }); | |
| 220 | ||
| 221 | me.tap = function (e, eventName) { | |
| 222 | var ev = document.createEvent('Event'); | |
| 223 | ev.initEvent(eventName, true, true); | |
| 224 | ev.pageX = e.pageX; | |
| 225 | ev.pageY = e.pageY; | |
| 226 | e.target.dispatchEvent(ev); | |
| 227 | }; | |
| 228 | ||
| 229 | me.click = function (e) { | |
| 230 | var target = e.target, | |
| 231 | ev; | |
| 232 | ||
| 233 | if ( !(/(SELECT|INPUT|TEXTAREA)/i).test(target.tagName) ) { | |
| 234 | ev = document.createEvent('MouseEvents'); | |
| 235 | ev.initMouseEvent('click', true, true, e.view, 1, | |
| 236 | target.screenX, target.screenY, target.clientX, target.clientY, | |
| 237 | e.ctrlKey, e.altKey, e.shiftKey, e.metaKey, | |
| 238 | 0, null); | |
| 239 | ||
| 240 | ev._constructed = true; | |
| 241 | target.dispatchEvent(ev); | |
| 242 | } | |
| 243 | }; | |
| 244 | ||
| 245 | return me; | |
| 246 | })(); | |
| 247 | ||
| 248 | function IScroll (el, options) { | |
| 249 | this.wrapper = typeof el == 'string' ? document.querySelector(el) : el; | |
| 250 | this.scroller = this.wrapper.children[0]; | |
| 251 | this.scrollerStyle = this.scroller.style; // cache style for better performance | |
| 252 | ||
| 253 | this.options = { | |
| 254 | ||
| 255 | resizeScrollbars: true, | |
| 256 | ||
| 257 | mouseWheelSpeed: 20, | |
| 258 | ||
| 259 | snapThreshold: 0.334, | |
| 260 | ||
| 261 | // INSERT POINT: OPTIONS | |
| 262 | ||
| 263 | startX: 0, | |
| 264 | startY: 0, | |
| 265 | scrollY: true, | |
| 266 | directionLockThreshold: 5, | |
| 267 | momentum: true, | |
| 268 | ||
| 269 | bounce: true, | |
| 270 | bounceTime: 600, | |
| 271 | bounceEasing: '', | |
| 272 | ||
| 273 | preventDefault: true, | |
| 274 | preventDefaultException: { tagName: /^(INPUT|TEXTAREA|BUTTON|SELECT)$/ }, | |
| 275 | ||
| 276 | HWCompositing: true, | |
| 277 | useTransition: true, | |
| 278 | useTransform: true | |
| 279 | }; | |
| 280 | ||
| 281 | for ( var i in options ) { | |
| 282 | this.options[i] = options[i]; | |
| 283 | } | |
| 284 | ||
| 285 | // Normalize options | |
| 286 | this.translateZ = this.options.HWCompositing && utils.hasPerspective ? ' translateZ(0)' : ''; | |
| 287 | ||
| 288 | this.options.useTransition = utils.hasTransition && this.options.useTransition; | |
| 289 | this.options.useTransform = utils.hasTransform && this.options.useTransform; | |
| 290 | ||
| 291 | this.options.eventPassthrough = this.options.eventPassthrough === true ? 'vertical' : this.options.eventPassthrough; | |
| 292 | this.options.preventDefault = !this.options.eventPassthrough && this.options.preventDefault; | |
| 293 | ||
| 294 | // If you want eventPassthrough I have to lock one of the axes | |
| 295 | this.options.scrollY = this.options.eventPassthrough == 'vertical' ? false : this.options.scrollY; | |
| 296 | this.options.scrollX = this.options.eventPassthrough == 'horizontal' ? false : this.options.scrollX; | |
| 297 | ||
| 298 | // With eventPassthrough we also need lockDirection mechanism | |
| 299 | this.options.freeScroll = this.options.freeScroll && !this.options.eventPassthrough; | |
| 300 | this.options.directionLockThreshold = this.options.eventPassthrough ? 0 : this.options.directionLockThreshold; | |
| 301 | ||
| 302 | this.options.bounceEasing = typeof this.options.bounceEasing == 'string' ? utils.ease[this.options.bounceEasing] || utils.ease.circular : this.options.bounceEasing; | |
| 303 | ||
| 304 | this.options.resizePolling = this.options.resizePolling === undefined ? 60 : this.options.resizePolling; | |
| 305 | ||
| 306 | if ( this.options.tap === true ) { | |
| 307 | this.options.tap = 'tap'; | |
| 308 | } | |
| 309 | ||
| 310 | if ( this.options.shrinkScrollbars == 'scale' ) { | |
| 311 | this.options.useTransition = false; | |
| 312 | } | |
| 313 | ||
| 314 | this.options.invertWheelDirection = this.options.invertWheelDirection ? -1 : 1; | |
| 315 | ||
| 316 | // INSERT POINT: NORMALIZATION | |
| 317 | ||
| 318 | // Some defaults | |
| 319 | this.x = 0; | |
| 320 | this.y = 0; | |
| 321 | this.directionX = 0; | |
| 322 | this.directionY = 0; | |
| 323 | this._events = {}; | |
| 324 | ||
| 325 | // INSERT POINT: DEFAULTS | |
| 326 | ||
| 327 | this._init(); | |
| 328 | this.refresh(); | |
| 329 | ||
| 330 | this.scrollTo(this.options.startX, this.options.startY); | |
| 331 | this.enable(); | |
| 332 | } | |
| 333 | ||
| 334 | IScroll.prototype = { | |
| 335 | version: '5.1.3', | |
| 336 | ||
| 337 | _init: function () { | |
| 338 | this._initEvents(); | |
| 339 | ||
| 340 | if ( this.options.scrollbars || this.options.indicators ) { | |
| 341 | this._initIndicators(); | |
| 342 | } | |
| 343 | ||
| 344 | if ( this.options.mouseWheel ) { | |
| 345 | this._initWheel(); | |
| 346 | } | |
| 347 | ||
| 348 | if ( this.options.snap ) { | |
| 349 | this._initSnap(); | |
| 350 | } | |
| 351 | ||
| 352 | if ( this.options.keyBindings ) { | |
| 353 | this._initKeys(); | |
| 354 | } | |
| 355 | ||
| 356 | // INSERT POINT: _init | |
| 357 | ||
| 358 | }, | |
| 359 | ||
| 360 | destroy: function () { | |
| 361 | this._initEvents(true); | |
| 362 | ||
| 363 | this._execEvent('destroy'); | |
| 364 | }, | |
| 365 | ||
| 366 | _transitionEnd: function (e) { | |
| 367 | if ( e.target != this.scroller || !this.isInTransition ) { | |
| 368 | return; | |
| 369 | } | |
| 370 | ||
| 371 | this._transitionTime(); | |
| 372 | if ( !this.resetPosition(this.options.bounceTime) ) { | |
| 373 | this.isInTransition = false; | |
| 374 | this._execEvent('scrollEnd'); | |
| 375 | } | |
| 376 | }, | |
| 377 | ||
| 378 | _start: function (e) { | |
| 379 | // React to left mouse button only | |
| 380 | if ( utils.eventType[e.type] != 1 ) { | |
| 381 | if ( e.button !== 0 ) { | |
| 382 | return; | |
| 383 | } | |
| 384 | } | |
| 385 | ||
| 386 | if ( !this.enabled || (this.initiated && utils.eventType[e.type] !== this.initiated) ) { | |
| 387 | return; | |
| 388 | } | |
| 389 | ||
| 390 | if ( this.options.preventDefault && !utils.isBadAndroid && !utils.preventDefaultException(e.target, this.options.preventDefaultException) ) { | |
| 391 | e.preventDefault(); | |
| 392 | } | |
| 393 | ||
| 394 | var point = e.touches ? e.touches[0] : e, | |
| 395 | pos; | |
| 396 | ||
| 397 | this.initiated = utils.eventType[e.type]; | |
| 398 | this.moved = false; | |
| 399 | this.distX = 0; | |
| 400 | this.distY = 0; | |
| 401 | this.directionX = 0; | |
| 402 | this.directionY = 0; | |
| 403 | this.directionLocked = 0; | |
| 404 | ||
| 405 | this._transitionTime(); | |
| 406 | ||
| 407 | this.startTime = utils.getTime(); | |
| 408 | ||
| 409 | if ( this.options.useTransition && this.isInTransition ) { | |
| 410 | this.isInTransition = false; | |
| 411 | pos = this.getComputedPosition(); | |
| 412 | this._translate(Math.round(pos.x), Math.round(pos.y)); | |
| 413 | this._execEvent('scrollEnd'); | |
| 414 | } else if ( !this.options.useTransition && this.isAnimating ) { | |
| 415 | this.isAnimating = false; | |
| 416 | this._execEvent('scrollEnd'); | |
| 417 | } | |
| 418 | ||
| 419 | this.startX = this.x; | |
| 420 | this.startY = this.y; | |
| 421 | this.absStartX = this.x; | |
| 422 | this.absStartY = this.y; | |
| 423 | this.pointX = point.pageX; | |
| 424 | this.pointY = point.pageY; | |
| 425 | ||
| 426 | this._execEvent('beforeScrollStart'); | |
| 427 | }, | |
| 428 | ||
| 429 | _move: function (e) { | |
| 430 | if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) { | |
| 431 | return; | |
| 432 | } | |
| 433 | ||
| 434 | if ( this.options.preventDefault ) { // increases performance on Android? TODO: check! | |
| 435 | e.preventDefault(); | |
| 436 | } | |
| 437 | ||
| 438 | var point = e.touches ? e.touches[0] : e, | |
| 439 | deltaX = point.pageX - this.pointX, | |
| 440 | deltaY = point.pageY - this.pointY, | |
| 441 | timestamp = utils.getTime(), | |
| 442 | newX, newY, | |
| 443 | absDistX, absDistY; | |
| 444 | ||
| 445 | this.pointX = point.pageX; | |
| 446 | this.pointY = point.pageY; | |
| 447 | ||
| 448 | this.distX += deltaX; | |
| 449 | this.distY += deltaY; | |
| 450 | absDistX = Math.abs(this.distX); | |
| 451 | absDistY = Math.abs(this.distY); | |
| 452 | ||
| 453 | // We need to move at least 10 pixels for the scrolling to initiate | |
| 454 | if ( timestamp - this.endTime > 300 && (absDistX < 10 && absDistY < 10) ) { | |
| 455 | return; | |
| 456 | } | |
| 457 | ||
| 458 | // If you are scrolling in one direction lock the other | |
| 459 | if ( !this.directionLocked && !this.options.freeScroll ) { | |
| 460 | if ( absDistX > absDistY + this.options.directionLockThreshold ) { | |
| 461 | this.directionLocked = 'h'; // lock horizontally | |
| 462 | } else if ( absDistY >= absDistX + this.options.directionLockThreshold ) { | |
| 463 | this.directionLocked = 'v'; // lock vertically | |
| 464 | } else { | |
| 465 | this.directionLocked = 'n'; // no lock | |
| 466 | } | |
| 467 | } | |
| 468 | ||
| 469 | if ( this.directionLocked == 'h' ) { | |
| 470 | if ( this.options.eventPassthrough == 'vertical' ) { | |
| 471 | e.preventDefault(); | |
| 472 | } else if ( this.options.eventPassthrough == 'horizontal' ) { | |
| 473 | this.initiated = false; | |
| 474 | return; | |
| 475 | } | |
| 476 | ||
| 477 | deltaY = 0; | |
| 478 | } else if ( this.directionLocked == 'v' ) { | |
| 479 | if ( this.options.eventPassthrough == 'horizontal' ) { | |
| 480 | e.preventDefault(); | |
| 481 | } else if ( this.options.eventPassthrough == 'vertical' ) { | |
| 482 | this.initiated = false; | |
| 483 | return; | |
| 484 | } | |
| 485 | ||
| 486 | deltaX = 0; | |
| 487 | } | |
| 488 | ||
| 489 | deltaX = this.hasHorizontalScroll ? deltaX : 0; | |
| 490 | deltaY = this.hasVerticalScroll ? deltaY : 0; | |
| 491 | ||
| 492 | newX = this.x + deltaX; | |
| 493 | newY = this.y + deltaY; | |
| 494 | ||
| 495 | // Slow down if outside of the boundaries | |
| 496 | if ( newX > 0 || newX < this.maxScrollX ) { | |
| 497 | newX = this.options.bounce ? this.x + deltaX / 3 : newX > 0 ? 0 : this.maxScrollX; | |
| 498 | } | |
| 499 | if ( newY > 0 || newY < this.maxScrollY ) { | |
| 500 | newY = this.options.bounce ? this.y + deltaY / 3 : newY > 0 ? 0 : this.maxScrollY; | |
| 501 | } | |
| 502 | ||
| 503 | this.directionX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0; | |
| 504 | this.directionY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0; | |
| 505 | ||
| 506 | if ( !this.moved ) { | |
| 507 | this._execEvent('scrollStart'); | |
| 508 | } | |
| 509 | ||
| 510 | this.moved = true; | |
| 511 | ||
| 512 | this._translate(newX, newY); | |
| 513 | ||
| 514 | /* REPLACE START: _move */ | |
| 515 | ||
| 516 | if ( timestamp - this.startTime > 300 ) { | |
| 517 | this.startTime = timestamp; | |
| 518 | this.startX = this.x; | |
| 519 | this.startY = this.y; | |
| 520 | } | |
| 521 | ||
| 522 | /* REPLACE END: _move */ | |
| 523 | ||
| 524 | }, | |
| 525 | ||
| 526 | _end: function (e) { | |
| 527 | if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) { | |
| 528 | return; | |
| 529 | } | |
| 530 | ||
| 531 | if ( this.options.preventDefault && !utils.preventDefaultException(e.target, this.options.preventDefaultException) ) { | |
| 532 | e.preventDefault(); | |
| 533 | } | |
| 534 | ||
| 535 | var point = e.changedTouches ? e.changedTouches[0] : e, | |
| 536 | momentumX, | |
| 537 | momentumY, | |
| 538 | duration = utils.getTime() - this.startTime, | |
| 539 | newX = Math.round(this.x), | |
| 540 | newY = Math.round(this.y), | |
| 541 | distanceX = Math.abs(newX - this.startX), | |
| 542 | distanceY = Math.abs(newY - this.startY), | |
| 543 | time = 0, | |
| 544 | easing = ''; | |
| 545 | ||
| 546 | this.isInTransition = 0; | |
| 547 | this.initiated = 0; | |
| 548 | this.endTime = utils.getTime(); | |
| 549 | ||
| 550 | // reset if we are outside of the boundaries | |
| 551 | if ( this.resetPosition(this.options.bounceTime) ) { | |
| 552 | return; | |
| 553 | } | |
| 554 | ||
| 555 | this.scrollTo(newX, newY); // ensures that the last position is rounded | |
| 556 | ||
| 557 | // we scrolled less than 10 pixels | |
| 558 | if ( !this.moved ) { | |
| 559 | if ( this.options.tap ) { | |
| 560 | utils.tap(e, this.options.tap); | |
| 561 | } | |
| 562 | ||
| 563 | if ( this.options.click ) { | |
| 564 | utils.click(e); | |
| 565 | } | |
| 566 | ||
| 567 | this._execEvent('scrollCancel'); | |
| 568 | return; | |
| 569 | } | |
| 570 | ||
| 571 | if ( this._events.flick && duration < 200 && distanceX < 100 && distanceY < 100 ) { | |
| 572 | this._execEvent('flick'); | |
| 573 | return; | |
| 574 | } | |
| 575 | ||
| 576 | // start momentum animation if needed | |
| 577 | if ( this.options.momentum && duration < 300 ) { | |
| 578 | momentumX = this.hasHorizontalScroll ? utils.momentum(this.x, this.startX, duration, this.maxScrollX, this.options.bounce ? this.wrapperWidth : 0, this.options.deceleration) : { destination: newX, duration: 0 }; | |
| 579 | momentumY = this.hasVerticalScroll ? utils.momentum(this.y, this.startY, duration, this.maxScrollY, this.options.bounce ? this.wrapperHeight : 0, this.options.deceleration) : { destination: newY, duration: 0 }; | |
| 580 | newX = momentumX.destination; | |
| 581 | newY = momentumY.destination; | |
| 582 | time = Math.max(momentumX.duration, momentumY.duration); | |
| 583 | this.isInTransition = 1; | |
| 584 | } | |
| 585 | ||
| 586 | ||
| 587 | if ( this.options.snap ) { | |
| 588 | var snap = this._nearestSnap(newX, newY); | |
| 589 | this.currentPage = snap; | |
| 590 | time = this.options.snapSpeed || Math.max( | |
| 591 | Math.max( | |
| 592 | Math.min(Math.abs(newX - snap.x), 1000), | |
| 593 | Math.min(Math.abs(newY - snap.y), 1000) | |
| 594 | ), 300); | |
| 595 | newX = snap.x; | |
| 596 | newY = snap.y; | |
| 597 | ||
| 598 | this.directionX = 0; | |
| 599 | this.directionY = 0; | |
| 600 | easing = this.options.bounceEasing; | |
| 601 | } | |
| 602 | ||
| 603 | // INSERT POINT: _end | |
| 604 | ||
| 605 | if ( newX != this.x || newY != this.y ) { | |
| 606 | // change easing function when scroller goes out of the boundaries | |
| 607 | if ( newX > 0 || newX < this.maxScrollX || newY > 0 || newY < this.maxScrollY ) { | |
| 608 | easing = utils.ease.quadratic; | |
| 609 | } | |
| 610 | ||
| 611 | this.scrollTo(newX, newY, time, easing); | |
| 612 | return; | |
| 613 | } | |
| 614 | ||
| 615 | this._execEvent('scrollEnd'); | |
| 616 | }, | |
| 617 | ||
| 618 | _resize: function () { | |
| 619 | var that = this; | |
| 620 | ||
| 621 | clearTimeout(this.resizeTimeout); | |
| 622 | ||
| 623 | this.resizeTimeout = setTimeout(function () { | |
| 624 | that.refresh(); | |
| 625 | }, this.options.resizePolling); | |
| 626 | }, | |
| 627 | ||
| 628 | resetPosition: function (time) { | |
| 629 | var x = this.x, | |
| 630 | y = this.y; | |
| 631 | ||
| 632 | time = time || 0; | |
| 633 | ||
| 634 | if ( !this.hasHorizontalScroll || this.x > 0 ) { | |
| 635 | x = 0; | |
| 636 | } else if ( this.x < this.maxScrollX ) { | |
| 637 | x = this.maxScrollX; | |
| 638 | } | |
| 639 | ||
| 640 | if ( !this.hasVerticalScroll || this.y > 0 ) { | |
| 641 | y = 0; | |
| 642 | } else if ( this.y < this.maxScrollY ) { | |
| 643 | y = this.maxScrollY; | |
| 644 | } | |
| 645 | ||
| 646 | if ( x == this.x && y == this.y ) { | |
| 647 | return false; | |
| 648 | } | |
| 649 | ||
| 650 | this.scrollTo(x, y, time, this.options.bounceEasing); | |
| 651 | ||
| 652 | return true; | |
| 653 | }, | |
| 654 | ||
| 655 | disable: function () { | |
| 656 | this.enabled = false; | |
| 657 | }, | |
| 658 | ||
| 659 | enable: function () { | |
| 660 | this.enabled = true; | |
| 661 | }, | |
| 662 | ||
| 663 | refresh: function () { | |
| 664 | var rf = this.wrapper.offsetHeight; // Force reflow | |
| 665 | ||
| 666 | this.wrapperWidth = this.wrapper.clientWidth; | |
| 667 | this.wrapperHeight = this.wrapper.clientHeight; | |
| 668 | ||
| 669 | /* REPLACE START: refresh */ | |
| 670 | ||
| 671 | this.scrollerWidth = this.scroller.offsetWidth; | |
| 672 | this.scrollerHeight = this.scroller.offsetHeight; | |
| 673 | ||
| 674 | this.maxScrollX = this.wrapperWidth - this.scrollerWidth; | |
| 675 | this.maxScrollY = this.wrapperHeight - this.scrollerHeight; | |
| 676 | ||
| 677 | /* REPLACE END: refresh */ | |
| 678 | ||
| 679 | this.hasHorizontalScroll = this.options.scrollX && this.maxScrollX < 0; | |
| 680 | this.hasVerticalScroll = this.options.scrollY && this.maxScrollY < 0; | |
| 681 | ||
| 682 | if ( !this.hasHorizontalScroll ) { | |
| 683 | this.maxScrollX = 0; | |
| 684 | this.scrollerWidth = this.wrapperWidth; | |
| 685 | } | |
| 686 | ||
| 687 | if ( !this.hasVerticalScroll ) { | |
| 688 | this.maxScrollY = 0; | |
| 689 | this.scrollerHeight = this.wrapperHeight; | |
| 690 | } | |
| 691 | ||
| 692 | this.endTime = 0; | |
| 693 | this.directionX = 0; | |
| 694 | this.directionY = 0; | |
| 695 | ||
| 696 | this.wrapperOffset = utils.offset(this.wrapper); | |
| 697 | ||
| 698 | this._execEvent('refresh'); | |
| 699 | ||
| 700 | this.resetPosition(); | |
| 701 | ||
| 702 | // INSERT POINT: _refresh | |
| 703 | ||
| 704 | }, | |
| 705 | ||
| 706 | on: function (type, fn) { | |
| 707 | if ( !this._events[type] ) { | |
| 708 | this._events[type] = []; | |
| 709 | } | |
| 710 | ||
| 711 | this._events[type].push(fn); | |
| 712 | }, | |
| 713 | ||
| 714 | off: function (type, fn) { | |
| 715 | if ( !this._events[type] ) { | |
| 716 | return; | |
| 717 | } | |
| 718 | ||
| 719 | var index = this._events[type].indexOf(fn); | |
| 720 | ||
| 721 | if ( index > -1 ) { | |
| 722 | this._events[type].splice(index, 1); | |
| 723 | } | |
| 724 | }, | |
| 725 | ||
| 726 | _execEvent: function (type) { | |
| 727 | if ( !this._events[type] ) { | |
| 728 | return; | |
| 729 | } | |
| 730 | ||
| 731 | var i = 0, | |
| 732 | l = this._events[type].length; | |
| 733 | ||
| 734 | if ( !l ) { | |
| 735 | return; | |
| 736 | } | |
| 737 | ||
| 738 | for ( ; i < l; i++ ) { | |
| 739 | this._events[type][i].apply(this, [].slice.call(arguments, 1)); | |
| 740 | } | |
| 741 | }, | |
| 742 | ||
| 743 | scrollBy: function (x, y, time, easing) { | |
| 744 | x = this.x + x; | |
| 745 | y = this.y + y; | |
| 746 | time = time || 0; | |
| 747 | ||
| 748 | this.scrollTo(x, y, time, easing); | |
| 749 | }, | |
| 750 | ||
| 751 | scrollTo: function (x, y, time, easing) { | |
| 752 | easing = easing || utils.ease.circular; | |
| 753 | ||
| 754 | this.isInTransition = this.options.useTransition && time > 0; | |
| 755 | ||
| 756 | if ( !time || (this.options.useTransition && easing.style) ) { | |
| 757 | this._transitionTimingFunction(easing.style); | |
| 758 | this._transitionTime(time); | |
| 759 | this._translate(x, y); | |
| 760 | } else { | |
| 761 | this._animate(x, y, time, easing.fn); | |
| 762 | } | |
| 763 | }, | |
| 764 | ||
| 765 | scrollToElement: function (el, time, offsetX, offsetY, easing) { | |
| 766 | el = el.nodeType ? el : this.scroller.querySelector(el); | |
| 767 | ||
| 768 | if ( !el ) { | |
| 769 | return; | |
| 770 | } | |
| 771 | ||
| 772 | var pos = utils.offset(el); | |
| 773 | ||
| 774 | pos.left -= this.wrapperOffset.left; | |
| 775 | pos.top -= this.wrapperOffset.top; | |
| 776 | ||
| 777 | // if offsetX/Y are true we center the element to the screen | |
| 778 | if ( offsetX === true ) { | |
| 779 | offsetX = Math.round(el.offsetWidth / 2 - this.wrapper.offsetWidth / 2); | |
| 780 | } | |
| 781 | if ( offsetY === true ) { | |
| 782 | offsetY = Math.round(el.offsetHeight / 2 - this.wrapper.offsetHeight / 2); | |
| 783 | } | |
| 784 | ||
| 785 | pos.left -= offsetX || 0; | |
| 786 | pos.top -= offsetY || 0; | |
| 787 | ||
| 788 | pos.left = pos.left > 0 ? 0 : pos.left < this.maxScrollX ? this.maxScrollX : pos.left; | |
| 789 | pos.top = pos.top > 0 ? 0 : pos.top < this.maxScrollY ? this.maxScrollY : pos.top; | |
| 790 | ||
| 791 | time = time === undefined || time === null || time === 'auto' ? Math.max(Math.abs(this.x-pos.left), Math.abs(this.y-pos.top)) : time; | |
| 792 | ||
| 793 | this.scrollTo(pos.left, pos.top, time, easing); | |
| 794 | }, | |
| 795 | ||
| 796 | _transitionTime: function (time) { | |
| 797 | time = time || 0; | |
| 798 | ||
| 799 | this.scrollerStyle[utils.style.transitionDuration] = time + 'ms'; | |
| 800 | ||
| 801 | if ( !time && utils.isBadAndroid ) { | |
| 802 | this.scrollerStyle[utils.style.transitionDuration] = '0.001s'; | |
| 803 | } | |
| 804 | ||
| 805 | ||
| 806 | if ( this.indicators ) { | |
| 807 | for ( var i = this.indicators.length; i--; ) { | |
| 808 | this.indicators[i].transitionTime(time); | |
| 809 | } | |
| 810 | } | |
| 811 | ||
| 812 | ||
| 813 | // INSERT POINT: _transitionTime | |
| 814 | ||
| 815 | }, | |
| 816 | ||
| 817 | _transitionTimingFunction: function (easing) { | |
| 818 | this.scrollerStyle[utils.style.transitionTimingFunction] = easing; | |
| 819 | ||
| 820 | ||
| 821 | if ( this.indicators ) { | |
| 822 | for ( var i = this.indicators.length; i--; ) { | |
| 823 | this.indicators[i].transitionTimingFunction(easing); | |
| 824 | } | |
| 825 | } | |
| 826 | ||
| 827 | ||
| 828 | // INSERT POINT: _transitionTimingFunction | |
| 829 | ||
| 830 | }, | |
| 831 | ||
| 832 | _translate: function (x, y) { | |
| 833 | if ( this.options.useTransform ) { | |
| 834 | ||
| 835 | /* REPLACE START: _translate */ | |
| 836 | ||
| 837 | this.scrollerStyle[utils.style.transform] = 'translate(' + x + 'px,' + y + 'px)' + this.translateZ; | |
| 838 | ||
| 839 | /* REPLACE END: _translate */ | |
| 840 | ||
| 841 | } else { | |
| 842 | x = Math.round(x); | |
| 843 | y = Math.round(y); | |
| 844 | this.scrollerStyle.left = x + 'px'; | |
| 845 | this.scrollerStyle.top = y + 'px'; | |
| 846 | } | |
| 847 | ||
| 848 | this.x = x; | |
| 849 | this.y = y; | |
| 850 | ||
| 851 | ||
| 852 | if ( this.indicators ) { | |
| 853 | for ( var i = this.indicators.length; i--; ) { | |
| 854 | this.indicators[i].updatePosition(); | |
| 855 | } | |
| 856 | } | |
| 857 | ||
| 858 | ||
| 859 | // INSERT POINT: _translate | |
| 860 | ||
| 861 | }, | |
| 862 | ||
| 863 | _initEvents: function (remove) { | |
| 864 | var eventType = remove ? utils.removeEvent : utils.addEvent, | |
| 865 | target = this.options.bindToWrapper ? this.wrapper : window; | |
| 866 | ||
| 867 | eventType(window, 'orientationchange', this); | |
| 868 | eventType(window, 'resize', this); | |
| 869 | ||
| 870 | if ( this.options.click ) { | |
| 871 | eventType(this.wrapper, 'click', this, true); | |
| 872 | } | |
| 873 | ||
| 874 | if ( !this.options.disableMouse ) { | |
| 875 | eventType(this.wrapper, 'mousedown', this); | |
| 876 | eventType(target, 'mousemove', this); | |
| 877 | eventType(target, 'mousecancel', this); | |
| 878 | eventType(target, 'mouseup', this); | |
| 879 | } | |
| 880 | ||
| 881 | if ( utils.hasPointer && !this.options.disablePointer ) { | |
| 882 | eventType(this.wrapper, utils.prefixPointerEvent('pointerdown'), this); | |
| 883 | eventType(target, utils.prefixPointerEvent('pointermove'), this); | |
| 884 | eventType(target, utils.prefixPointerEvent('pointercancel'), this); | |
| 885 | eventType(target, utils.prefixPointerEvent('pointerup'), this); | |
| 886 | } | |
| 887 | ||
| 888 | if ( utils.hasTouch && !this.options.disableTouch ) { | |
| 889 | eventType(this.wrapper, 'touchstart', this); | |
| 890 | eventType(target, 'touchmove', this); | |
| 891 | eventType(target, 'touchcancel', this); | |
| 892 | eventType(target, 'touchend', this); | |
| 893 | } | |
| 894 | ||
| 895 | eventType(this.scroller, 'transitionend', this); | |
| 896 | eventType(this.scroller, 'webkitTransitionEnd', this); | |
| 897 | eventType(this.scroller, 'oTransitionEnd', this); | |
| 898 | eventType(this.scroller, 'MSTransitionEnd', this); | |
| 899 | }, | |
| 900 | ||
| 901 | getComputedPosition: function () { | |
| 902 | var matrix = window.getComputedStyle(this.scroller, null), | |
| 903 | x, y; | |
| 904 | ||
| 905 | if ( this.options.useTransform ) { | |
| 906 | matrix = matrix[utils.style.transform].split(')')[0].split(', '); | |
| 907 | x = +(matrix[12] || matrix[4]); | |
| 908 | y = +(matrix[13] || matrix[5]); | |
| 909 | } else { | |
| 910 | x = +matrix.left.replace(/[^-\d.]/g, ''); | |
| 911 | y = +matrix.top.replace(/[^-\d.]/g, ''); | |
| 912 | } | |
| 913 | ||
| 914 | return { x: x, y: y }; | |
| 915 | }, | |
| 916 | ||
| 917 | _initIndicators: function () { | |
| 918 | var interactive = this.options.interactiveScrollbars, | |
| 919 | customStyle = typeof this.options.scrollbars != 'string', | |
| 920 | indicators = [], | |
| 921 | indicator; | |
| 922 | ||
| 923 | var that = this; | |
| 924 | ||
| 925 | this.indicators = []; | |
| 926 | ||
| 927 | if ( this.options.scrollbars ) { | |
| 928 | // Vertical scrollbar | |
| 929 | if ( this.options.scrollY ) { | |
| 930 | indicator = { | |
| 931 | el: createDefaultScrollbar('v', interactive, this.options.scrollbars), | |
| 932 | interactive: interactive, | |
| 933 | defaultScrollbars: true, | |
| 934 | customStyle: customStyle, | |
| 935 | resize: this.options.resizeScrollbars, | |
| 936 | shrink: this.options.shrinkScrollbars, | |
| 937 | fade: this.options.fadeScrollbars, | |
| 938 | listenX: false | |
| 939 | }; | |
| 940 | ||
| 941 | this.wrapper.appendChild(indicator.el); | |
| 942 | indicators.push(indicator); | |
| 943 | } | |
| 944 | ||
| 945 | // Horizontal scrollbar | |
| 946 | if ( this.options.scrollX ) { | |
| 947 | indicator = { | |
| 948 | el: createDefaultScrollbar('h', interactive, this.options.scrollbars), | |
| 949 | interactive: interactive, | |
| 950 | defaultScrollbars: true, | |
| 951 | customStyle: customStyle, | |
| 952 | resize: this.options.resizeScrollbars, | |
| 953 | shrink: this.options.shrinkScrollbars, | |
| 954 | fade: this.options.fadeScrollbars, | |
| 955 | listenY: false | |
| 956 | }; | |
| 957 | ||
| 958 | this.wrapper.appendChild(indicator.el); | |
| 959 | indicators.push(indicator); | |
| 960 | } | |
| 961 | } | |
| 962 | ||
| 963 | if ( this.options.indicators ) { | |
| 964 | // TODO: check concat compatibility | |
| 965 | indicators = indicators.concat(this.options.indicators); | |
| 966 | } | |
| 967 | ||
| 968 | for ( var i = indicators.length; i--; ) { | |
| 969 | this.indicators.push( new Indicator(this, indicators[i]) ); | |
| 970 | } | |
| 971 | ||
| 972 | // TODO: check if we can use array.map (wide compatibility and performance issues) | |
| 973 | function _indicatorsMap (fn) { | |
| 974 | for ( var i = that.indicators.length; i--; ) { | |
| 975 | fn.call(that.indicators[i]); | |
| 976 | } | |
| 977 | } | |
| 978 | ||
| 979 | if ( this.options.fadeScrollbars ) { | |
| 980 | this.on('scrollEnd', function () { | |
| 981 | _indicatorsMap(function () { | |
| 982 | this.fade(); | |
| 983 | }); | |
| 984 | }); | |
| 985 | ||
| 986 | this.on('scrollCancel', function () { | |
| 987 | _indicatorsMap(function () { | |
| 988 | this.fade(); | |
| 989 | }); | |
| 990 | }); | |
| 991 | ||
| 992 | this.on('scrollStart', function () { | |
| 993 | _indicatorsMap(function () { | |
| 994 | this.fade(1); | |
| 995 | }); | |
| 996 | }); | |
| 997 | ||
| 998 | this.on('beforeScrollStart', function () { | |
| 999 | _indicatorsMap(function () { | |
| 1000 | this.fade(1, true); | |
| 1001 | }); | |
| 1002 | }); | |
| 1003 | } | |
| 1004 | ||
| 1005 | ||
| 1006 | this.on('refresh', function () { | |
| 1007 | _indicatorsMap(function () { | |
| 1008 | this.refresh(); | |
| 1009 | }); | |
| 1010 | }); | |
| 1011 | ||
| 1012 | this.on('destroy', function () { | |
| 1013 | _indicatorsMap(function () { | |
| 1014 | this.destroy(); | |
| 1015 | }); | |
| 1016 | ||
| 1017 | delete this.indicators; | |
| 1018 | }); | |
| 1019 | }, | |
| 1020 | ||
| 1021 | _initWheel: function () { | |
| 1022 | utils.addEvent(this.wrapper, 'wheel', this); | |
| 1023 | utils.addEvent(this.wrapper, 'mousewheel', this); | |
| 1024 | utils.addEvent(this.wrapper, 'DOMMouseScroll', this); | |
| 1025 | ||
| 1026 | this.on('destroy', function () { | |
| 1027 | utils.removeEvent(this.wrapper, 'wheel', this); | |
| 1028 | utils.removeEvent(this.wrapper, 'mousewheel', this); | |
| 1029 | utils.removeEvent(this.wrapper, 'DOMMouseScroll', this); | |
| 1030 | }); | |
| 1031 | }, | |
| 1032 | ||
| 1033 | _wheel: function (e) { | |
| 1034 | if ( !this.enabled ) { | |
| 1035 | return; | |
| 1036 | } | |
| 1037 | ||
| 1038 | e.preventDefault(); | |
| 1039 | e.stopPropagation(); | |
| 1040 | ||
| 1041 | var wheelDeltaX, wheelDeltaY, | |
| 1042 | newX, newY, | |
| 1043 | that = this; | |
| 1044 | ||
| 1045 | if ( this.wheelTimeout === undefined ) { | |
| 1046 | that._execEvent('scrollStart'); | |
| 1047 | } | |
| 1048 | ||
| 1049 | // Execute the scrollEnd event after 400ms the wheel stopped scrolling | |
| 1050 | clearTimeout(this.wheelTimeout); | |
| 1051 | this.wheelTimeout = setTimeout(function () { | |
| 1052 | that._execEvent('scrollEnd'); | |
| 1053 | that.wheelTimeout = undefined; | |
| 1054 | }, 400); | |
| 1055 | ||
| 1056 | if ( 'deltaX' in e ) { | |
| 1057 | if (e.deltaMode === 1) { | |
| 1058 | wheelDeltaX = -e.deltaX * this.options.mouseWheelSpeed; | |
| 1059 | wheelDeltaY = -e.deltaY * this.options.mouseWheelSpeed; | |
| 1060 | } else { | |
| 1061 | wheelDeltaX = -e.deltaX; | |
| 1062 | wheelDeltaY = -e.deltaY; | |
| 1063 | } | |
| 1064 | } else if ( 'wheelDeltaX' in e ) { | |
| 1065 | wheelDeltaX = e.wheelDeltaX / 120 * this.options.mouseWheelSpeed; | |
| 1066 | wheelDeltaY = e.wheelDeltaY / 120 * this.options.mouseWheelSpeed; | |
| 1067 | } else if ( 'wheelDelta' in e ) { | |
| 1068 | wheelDeltaX = wheelDeltaY = e.wheelDelta / 120 * this.options.mouseWheelSpeed; | |
| 1069 | } else if ( 'detail' in e ) { | |
| 1070 | wheelDeltaX = wheelDeltaY = -e.detail / 3 * this.options.mouseWheelSpeed; | |
| 1071 | } else { | |
| 1072 | return; | |
| 1073 | } | |
| 1074 | ||
| 1075 | wheelDeltaX *= this.options.invertWheelDirection; | |
| 1076 | wheelDeltaY *= this.options.invertWheelDirection; | |
| 1077 | ||
| 1078 | if ( !this.hasVerticalScroll ) { | |
| 1079 | wheelDeltaX = wheelDeltaY; | |
| 1080 | wheelDeltaY = 0; | |
| 1081 | } | |
| 1082 | ||
| 1083 | if ( this.options.snap ) { | |
| 1084 | newX = this.currentPage.pageX; | |
| 1085 | newY = this.currentPage.pageY; | |
| 1086 | ||
| 1087 | if ( wheelDeltaX > 0 ) { | |
| 1088 | newX--; | |
| 1089 | } else if ( wheelDeltaX < 0 ) { | |
| 1090 | newX++; | |
| 1091 | } | |
| 1092 | ||
| 1093 | if ( wheelDeltaY > 0 ) { | |
| 1094 | newY--; | |
| 1095 | } else if ( wheelDeltaY < 0 ) { | |
| 1096 | newY++; | |
| 1097 | } | |
| 1098 | ||
| 1099 | this.goToPage(newX, newY); | |
| 1100 | ||
| 1101 | return; | |
| 1102 | } | |
| 1103 | ||
| 1104 | newX = this.x + Math.round(this.hasHorizontalScroll ? wheelDeltaX : 0); | |
| 1105 | newY = this.y + Math.round(this.hasVerticalScroll ? wheelDeltaY : 0); | |
| 1106 | ||
| 1107 | if ( newX > 0 ) { | |
| 1108 | newX = 0; | |
| 1109 | } else if ( newX < this.maxScrollX ) { | |
| 1110 | newX = this.maxScrollX; | |
| 1111 | } | |
| 1112 | ||
| 1113 | if ( newY > 0 ) { | |
| 1114 | newY = 0; | |
| 1115 | } else if ( newY < this.maxScrollY ) { | |
| 1116 | newY = this.maxScrollY; | |
| 1117 | } | |
| 1118 | ||
| 1119 | this.scrollTo(newX, newY, 0); | |
| 1120 | ||
| 1121 | // INSERT POINT: _wheel | |
| 1122 | }, | |
| 1123 | ||
| 1124 | _initSnap: function () { | |
| 1125 | this.currentPage = {}; | |
| 1126 | ||
| 1127 | if ( typeof this.options.snap == 'string' ) { | |
| 1128 | this.options.snap = this.scroller.querySelectorAll(this.options.snap); | |
| 1129 | } | |
| 1130 | ||
| 1131 | this.on('refresh', function () { | |
| 1132 | var i = 0, l, | |
| 1133 | m = 0, n, | |
| 1134 | cx, cy, | |
| 1135 | x = 0, y, | |
| 1136 | stepX = this.options.snapStepX || this.wrapperWidth, | |
| 1137 | stepY = this.options.snapStepY || this.wrapperHeight, | |
| 1138 | el; | |
| 1139 | ||
| 1140 | this.pages = []; | |
| 1141 | ||
| 1142 | if ( !this.wrapperWidth || !this.wrapperHeight || !this.scrollerWidth || !this.scrollerHeight ) { | |
| 1143 | return; | |
| 1144 | } | |
| 1145 | ||
| 1146 | if ( this.options.snap === true ) { | |
| 1147 | cx = Math.round( stepX / 2 ); | |
| 1148 | cy = Math.round( stepY / 2 ); | |
| 1149 | ||
| 1150 | while ( x > -this.scrollerWidth ) { | |
| 1151 | this.pages[i] = []; | |
| 1152 | l = 0; | |
| 1153 | y = 0; | |
| 1154 | ||
| 1155 | while ( y > -this.scrollerHeight ) { | |
| 1156 | this.pages[i][l] = { | |
| 1157 | x: Math.max(x, this.maxScrollX), | |
| 1158 | y: Math.max(y, this.maxScrollY), | |
| 1159 | width: stepX, | |
| 1160 | height: stepY, | |
| 1161 | cx: x - cx, | |
| 1162 | cy: y - cy | |
| 1163 | }; | |
| 1164 | ||
| 1165 | y -= stepY; | |
| 1166 | l++; | |
| 1167 | } | |
| 1168 | ||
| 1169 | x -= stepX; | |
| 1170 | i++; | |
| 1171 | } | |
| 1172 | } else { | |
| 1173 | el = this.options.snap; | |
| 1174 | l = el.length; | |
| 1175 | n = -1; | |
| 1176 | ||
| 1177 | for ( ; i < l; i++ ) { | |
| 1178 | if ( i === 0 || el[i].offsetLeft <= el[i-1].offsetLeft ) { | |
| 1179 | m = 0; | |
| 1180 | n++; | |
| 1181 | } | |
| 1182 | ||
| 1183 | if ( !this.pages[m] ) { | |
| 1184 | this.pages[m] = []; | |
| 1185 | } | |
| 1186 | ||
| 1187 | x = Math.max(-el[i].offsetLeft, this.maxScrollX); | |
| 1188 | y = Math.max(-el[i].offsetTop, this.maxScrollY); | |
| 1189 | cx = x - Math.round(el[i].offsetWidth / 2); | |
| 1190 | cy = y - Math.round(el[i].offsetHeight / 2); | |
| 1191 | ||
| 1192 | this.pages[m][n] = { | |
| 1193 | x: x, | |
| 1194 | y: y, | |
| 1195 | width: el[i].offsetWidth, | |
| 1196 | height: el[i].offsetHeight, | |
| 1197 | cx: cx, | |
| 1198 | cy: cy | |
| 1199 | }; | |
| 1200 | ||
| 1201 | if ( x > this.maxScrollX ) { | |
| 1202 | m++; | |
| 1203 | } | |
| 1204 | } | |
| 1205 | } | |
| 1206 | ||
| 1207 | this.goToPage(this.currentPage.pageX || 0, this.currentPage.pageY || 0, 0); | |
| 1208 | ||
| 1209 | // Update snap threshold if needed | |
| 1210 | if ( this.options.snapThreshold % 1 === 0 ) { | |
| 1211 | this.snapThresholdX = this.options.snapThreshold; | |
| 1212 | this.snapThresholdY = this.options.snapThreshold; | |
| 1213 | } else { | |
| 1214 | this.snapThresholdX = Math.round(this.pages[this.currentPage.pageX][this.currentPage.pageY].width * this.options.snapThreshold); | |
| 1215 | this.snapThresholdY = Math.round(this.pages[this.currentPage.pageX][this.currentPage.pageY].height * this.options.snapThreshold); | |
| 1216 | } | |
| 1217 | }); | |
| 1218 | ||
| 1219 | this.on('flick', function () { | |
| 1220 | var time = this.options.snapSpeed || Math.max( | |
| 1221 | Math.max( | |
| 1222 | Math.min(Math.abs(this.x - this.startX), 1000), | |
| 1223 | Math.min(Math.abs(this.y - this.startY), 1000) | |
| 1224 | ), 300); | |
| 1225 | ||
| 1226 | this.goToPage( | |
| 1227 | this.currentPage.pageX + this.directionX, | |
| 1228 | this.currentPage.pageY + this.directionY, | |
| 1229 | time | |
| 1230 | ); | |
| 1231 | }); | |
| 1232 | }, | |
| 1233 | ||
| 1234 | _nearestSnap: function (x, y) { | |
| 1235 | if ( !this.pages.length ) { | |
| 1236 | return { x: 0, y: 0, pageX: 0, pageY: 0 }; | |
| 1237 | } | |
| 1238 | ||
| 1239 | var i = 0, | |
| 1240 | l = this.pages.length, | |
| 1241 | m = 0; | |
| 1242 | ||
| 1243 | // Check if we exceeded the snap threshold | |
| 1244 | if ( Math.abs(x - this.absStartX) < this.snapThresholdX && | |
| 1245 | Math.abs(y - this.absStartY) < this.snapThresholdY ) { | |
| 1246 | return this.currentPage; | |
| 1247 | } | |
| 1248 | ||
| 1249 | if ( x > 0 ) { | |
| 1250 | x = 0; | |
| 1251 | } else if ( x < this.maxScrollX ) { | |
| 1252 | x = this.maxScrollX; | |
| 1253 | } | |
| 1254 | ||
| 1255 | if ( y > 0 ) { | |
| 1256 | y = 0; | |
| 1257 | } else if ( y < this.maxScrollY ) { | |
| 1258 | y = this.maxScrollY; | |
| 1259 | } | |
| 1260 | ||
| 1261 | for ( ; i < l; i++ ) { | |
| 1262 | if ( x >= this.pages[i][0].cx ) { | |
| 1263 | x = this.pages[i][0].x; | |
| 1264 | break; | |
| 1265 | } | |
| 1266 | } | |
| 1267 | ||
| 1268 | l = this.pages[i].length; | |
| 1269 | ||
| 1270 | for ( ; m < l; m++ ) { | |
| 1271 | if ( y >= this.pages[0][m].cy ) { | |
| 1272 | y = this.pages[0][m].y; | |
| 1273 | break; | |
| 1274 | } | |
| 1275 | } | |
| 1276 | ||
| 1277 | if ( i == this.currentPage.pageX ) { | |
| 1278 | i += this.directionX; | |
| 1279 | ||
| 1280 | if ( i < 0 ) { | |
| 1281 | i = 0; | |
| 1282 | } else if ( i >= this.pages.length ) { | |
| 1283 | i = this.pages.length - 1; | |
| 1284 | } | |
| 1285 | ||
| 1286 | x = this.pages[i][0].x; | |
| 1287 | } | |
| 1288 | ||
| 1289 | if ( m == this.currentPage.pageY ) { | |
| 1290 | m += this.directionY; | |
| 1291 | ||
| 1292 | if ( m < 0 ) { | |
| 1293 | m = 0; | |
| 1294 | } else if ( m >= this.pages[0].length ) { | |
| 1295 | m = this.pages[0].length - 1; | |
| 1296 | } | |
| 1297 | ||
| 1298 | y = this.pages[0][m].y; | |
| 1299 | } | |
| 1300 | ||
| 1301 | return { | |
| 1302 | x: x, | |
| 1303 | y: y, | |
| 1304 | pageX: i, | |
| 1305 | pageY: m | |
| 1306 | }; | |
| 1307 | }, | |
| 1308 | ||
| 1309 | goToPage: function (x, y, time, easing) { | |
| 1310 | easing = easing || this.options.bounceEasing; | |
| 1311 | ||
| 1312 | if ( x >= this.pages.length ) { | |
| 1313 | x = this.pages.length - 1; | |
| 1314 | } else if ( x < 0 ) { | |
| 1315 | x = 0; | |
| 1316 | } | |
| 1317 | ||
| 1318 | if ( y >= this.pages[x].length ) { | |
| 1319 | y = this.pages[x].length - 1; | |
| 1320 | } else if ( y < 0 ) { | |
| 1321 | y = 0; | |
| 1322 | } | |
| 1323 | ||
| 1324 | var posX = this.pages[x][y].x, | |
| 1325 | posY = this.pages[x][y].y; | |
| 1326 | ||
| 1327 | time = time === undefined ? this.options.snapSpeed || Math.max( | |
| 1328 | Math.max( | |
| 1329 | Math.min(Math.abs(posX - this.x), 1000), | |
| 1330 | Math.min(Math.abs(posY - this.y), 1000) | |
| 1331 | ), 300) : time; | |
| 1332 | ||
| 1333 | this.currentPage = { | |
| 1334 | x: posX, | |
| 1335 | y: posY, | |
| 1336 | pageX: x, | |
| 1337 | pageY: y | |
| 1338 | }; | |
| 1339 | ||
| 1340 | this.scrollTo(posX, posY, time, easing); | |
| 1341 | }, | |
| 1342 | ||
| 1343 | next: function (time, easing) { | |
| 1344 | var x = this.currentPage.pageX, | |
| 1345 | y = this.currentPage.pageY; | |
| 1346 | ||
| 1347 | x++; | |
| 1348 | ||
| 1349 | if ( x >= this.pages.length && this.hasVerticalScroll ) { | |
| 1350 | x = 0; | |
| 1351 | y++; | |
| 1352 | } | |
| 1353 | ||
| 1354 | this.goToPage(x, y, time, easing); | |
| 1355 | }, | |
| 1356 | ||
| 1357 | prev: function (time, easing) { | |
| 1358 | var x = this.currentPage.pageX, | |
| 1359 | y = this.currentPage.pageY; | |
| 1360 | ||
| 1361 | x--; | |
| 1362 | ||
| 1363 | if ( x < 0 && this.hasVerticalScroll ) { | |
| 1364 | x = 0; | |
| 1365 | y--; | |
| 1366 | } | |
| 1367 | ||
| 1368 | this.goToPage(x, y, time, easing); | |
| 1369 | }, | |
| 1370 | ||
| 1371 | _initKeys: function (e) { | |
| 1372 | // default key bindings | |
| 1373 | var keys = { | |
| 1374 | pageUp: 33, | |
| 1375 | pageDown: 34, | |
| 1376 | end: 35, | |
| 1377 | home: 36, | |
| 1378 | left: 37, | |
| 1379 | up: 38, | |
| 1380 | right: 39, | |
| 1381 | down: 40 | |
| 1382 | }; | |
| 1383 | var i; | |
| 1384 | ||
| 1385 | // if you give me characters I give you keycode | |
| 1386 | if ( typeof this.options.keyBindings == 'object' ) { | |
| 1387 | for ( i in this.options.keyBindings ) { | |
| 1388 | if ( typeof this.options.keyBindings[i] == 'string' ) { | |
| 1389 | this.options.keyBindings[i] = this.options.keyBindings[i].toUpperCase().charCodeAt(0); | |
| 1390 | } | |
| 1391 | } | |
| 1392 | } else { | |
| 1393 | this.options.keyBindings = {}; | |
| 1394 | } | |
| 1395 | ||
| 1396 | for ( i in keys ) { | |
| 1397 | this.options.keyBindings[i] = this.options.keyBindings[i] || keys[i]; | |
| 1398 | } | |
| 1399 | ||
| 1400 | utils.addEvent(window, 'keydown', this); | |
| 1401 | ||
| 1402 | this.on('destroy', function () { | |
| 1403 | utils.removeEvent(window, 'keydown', this); | |
| 1404 | }); | |
| 1405 | }, | |
| 1406 | ||
| 1407 | _key: function (e) { | |
| 1408 | if ( !this.enabled ) { | |
| 1409 | return; | |
| 1410 | } | |
| 1411 | ||
| 1412 | var snap = this.options.snap, // we are using this alot, better to cache it | |
| 1413 | newX = snap ? this.currentPage.pageX : this.x, | |
| 1414 | newY = snap ? this.currentPage.pageY : this.y, | |
| 1415 | now = utils.getTime(), | |
| 1416 | prevTime = this.keyTime || 0, | |
| 1417 | acceleration = 0.250, | |
| 1418 | pos; | |
| 1419 | ||
| 1420 | if ( this.options.useTransition && this.isInTransition ) { | |
| 1421 | pos = this.getComputedPosition(); | |
| 1422 | ||
| 1423 | this._translate(Math.round(pos.x), Math.round(pos.y)); | |
| 1424 | this.isInTransition = false; | |
| 1425 | } | |
| 1426 | ||
| 1427 | this.keyAcceleration = now - prevTime < 200 ? Math.min(this.keyAcceleration + acceleration, 50) : 0; | |
| 1428 | ||
| 1429 | switch ( e.keyCode ) { | |
| 1430 | case this.options.keyBindings.pageUp: | |
| 1431 | if ( this.hasHorizontalScroll && !this.hasVerticalScroll ) { | |
| 1432 | newX += snap ? 1 : this.wrapperWidth; | |
| 1433 | } else { | |
| 1434 | newY += snap ? 1 : this.wrapperHeight; | |
| 1435 | } | |
| 1436 | break; | |
| 1437 | case this.options.keyBindings.pageDown: | |
| 1438 | if ( this.hasHorizontalScroll && !this.hasVerticalScroll ) { | |
| 1439 | newX -= snap ? 1 : this.wrapperWidth; | |
| 1440 | } else { | |
| 1441 | newY -= snap ? 1 : this.wrapperHeight; | |
| 1442 | } | |
| 1443 | break; | |
| 1444 | case this.options.keyBindings.end: | |
| 1445 | newX = snap ? this.pages.length-1 : this.maxScrollX; | |
| 1446 | newY = snap ? this.pages[0].length-1 : this.maxScrollY; | |
| 1447 | break; | |
| 1448 | case this.options.keyBindings.home: | |
| 1449 | newX = 0; | |
| 1450 | newY = 0; | |
| 1451 | break; | |
| 1452 | case this.options.keyBindings.left: | |
| 1453 | newX += snap ? -1 : 5 + this.keyAcceleration>>0; | |
| 1454 | break; | |
| 1455 | case this.options.keyBindings.up: | |
| 1456 | newY += snap ? 1 : 5 + this.keyAcceleration>>0; | |
| 1457 | break; | |
| 1458 | case this.options.keyBindings.right: | |
| 1459 | newX -= snap ? -1 : 5 + this.keyAcceleration>>0; | |
| 1460 | break; | |
| 1461 | case this.options.keyBindings.down: | |
| 1462 | newY -= snap ? 1 : 5 + this.keyAcceleration>>0; | |
| 1463 | break; | |
| 1464 | default: | |
| 1465 | return; | |
| 1466 | } | |
| 1467 | ||
| 1468 | if ( snap ) { | |
| 1469 | this.goToPage(newX, newY); | |
| 1470 | return; | |
| 1471 | } | |
| 1472 | ||
| 1473 | if ( newX > 0 ) { | |
| 1474 | newX = 0; | |
| 1475 | this.keyAcceleration = 0; | |
| 1476 | } else if ( newX < this.maxScrollX ) { | |
| 1477 | newX = this.maxScrollX; | |
| 1478 | this.keyAcceleration = 0; | |
| 1479 | } | |
| 1480 | ||
| 1481 | if ( newY > 0 ) { | |
| 1482 | newY = 0; | |
| 1483 | this.keyAcceleration = 0; | |
| 1484 | } else if ( newY < this.maxScrollY ) { | |
| 1485 | newY = this.maxScrollY; | |
| 1486 | this.keyAcceleration = 0; | |
| 1487 | } | |
| 1488 | ||
| 1489 | this.scrollTo(newX, newY, 0); | |
| 1490 | ||
| 1491 | this.keyTime = now; | |
| 1492 | }, | |
| 1493 | ||
| 1494 | _animate: function (destX, destY, duration, easingFn) { | |
| 1495 | var that = this, | |
| 1496 | startX = this.x, | |
| 1497 | startY = this.y, | |
| 1498 | startTime = utils.getTime(), | |
| 1499 | destTime = startTime + duration; | |
| 1500 | ||
| 1501 | function step () { | |
| 1502 | var now = utils.getTime(), | |
| 1503 | newX, newY, | |
| 1504 | easing; | |
| 1505 | ||
| 1506 | if ( now >= destTime ) { | |
| 1507 | that.isAnimating = false; | |
| 1508 | that._translate(destX, destY); | |
| 1509 | ||
| 1510 | if ( !that.resetPosition(that.options.bounceTime) ) { | |
| 1511 | that._execEvent('scrollEnd'); | |
| 1512 | } | |
| 1513 | ||
| 1514 | return; | |
| 1515 | } | |
| 1516 | ||
| 1517 | now = ( now - startTime ) / duration; | |
| 1518 | easing = easingFn(now); | |
| 1519 | newX = ( destX - startX ) * easing + startX; | |
| 1520 | newY = ( destY - startY ) * easing + startY; | |
| 1521 | that._translate(newX, newY); | |
| 1522 | ||
| 1523 | if ( that.isAnimating ) { | |
| 1524 | rAF(step); | |
| 1525 | } | |
| 1526 | } | |
| 1527 | ||
| 1528 | this.isAnimating = true; | |
| 1529 | step(); | |
| 1530 | }, | |
| 1531 | handleEvent: function (e) { | |
| 1532 | switch ( e.type ) { | |
| 1533 | case 'touchstart': | |
| 1534 | case 'pointerdown': | |
| 1535 | case 'MSPointerDown': | |
| 1536 | case 'mousedown': | |
| 1537 | this._start(e); | |
| 1538 | break; | |
| 1539 | case 'touchmove': | |
| 1540 | case 'pointermove': | |
| 1541 | case 'MSPointerMove': | |
| 1542 | case 'mousemove': | |
| 1543 | this._move(e); | |
| 1544 | break; | |
| 1545 | case 'touchend': | |
| 1546 | case 'pointerup': | |
| 1547 | case 'MSPointerUp': | |
| 1548 | case 'mouseup': | |
| 1549 | case 'touchcancel': | |
| 1550 | case 'pointercancel': | |
| 1551 | case 'MSPointerCancel': | |
| 1552 | case 'mousecancel': | |
| 1553 | this._end(e); | |
| 1554 | break; | |
| 1555 | case 'orientationchange': | |
| 1556 | case 'resize': | |
| 1557 | this._resize(); | |
| 1558 | break; | |
| 1559 | case 'transitionend': | |
| 1560 | case 'webkitTransitionEnd': | |
| 1561 | case 'oTransitionEnd': | |
| 1562 | case 'MSTransitionEnd': | |
| 1563 | this._transitionEnd(e); | |
| 1564 | break; | |
| 1565 | case 'wheel': | |
| 1566 | case 'DOMMouseScroll': | |
| 1567 | case 'mousewheel': | |
| 1568 | this._wheel(e); | |
| 1569 | break; | |
| 1570 | case 'keydown': | |
| 1571 | this._key(e); | |
| 1572 | break; | |
| 1573 | case 'click': | |
| 1574 | if ( !e._constructed ) { | |
| 1575 | e.preventDefault(); | |
| 1576 | e.stopPropagation(); | |
| 1577 | } | |
| 1578 | break; | |
| 1579 | } | |
| 1580 | } | |
| 1581 | }; | |
| 1582 | function createDefaultScrollbar (direction, interactive, type) { | |
| 1583 | var scrollbar = document.createElement('div'), | |
| 1584 | indicator = document.createElement('div'); | |
| 1585 | ||
| 1586 | if ( type === true ) { | |
| 1587 | scrollbar.style.cssText = 'position:absolute;z-index:9999'; | |
| 1588 | indicator.style.cssText = '-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;position:absolute;background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.9);border-radius:3px'; | |
| 1589 | } | |
| 1590 | ||
| 1591 | indicator.className = 'iScrollIndicator'; | |
| 1592 | ||
| 1593 | if ( direction == 'h' ) { | |
| 1594 | if ( type === true ) { | |
| 1595 | scrollbar.style.cssText += ';height:7px;left:2px;right:2px;bottom:0'; | |
| 1596 | indicator.style.height = '100%'; | |
| 1597 | } | |
| 1598 | scrollbar.className = 'iScrollHorizontalScrollbar'; | |
| 1599 | } else { | |
| 1600 | if ( type === true ) { | |
| 1601 | scrollbar.style.cssText += ';width:7px;bottom:2px;top:2px;right:1px'; | |
| 1602 | indicator.style.width = '100%'; | |
| 1603 | } | |
| 1604 | scrollbar.className = 'iScrollVerticalScrollbar'; | |
| 1605 | } | |
| 1606 | ||
| 1607 | scrollbar.style.cssText += ';overflow:hidden'; | |
| 1608 | ||
| 1609 | if ( !interactive ) { | |
| 1610 | scrollbar.style.pointerEvents = 'none'; | |
| 1611 | } | |
| 1612 | ||
| 1613 | scrollbar.appendChild(indicator); | |
| 1614 | ||
| 1615 | return scrollbar; | |
| 1616 | } | |
| 1617 | ||
| 1618 | function Indicator (scroller, options) { | |
| 1619 | this.wrapper = typeof options.el == 'string' ? document.querySelector(options.el) : options.el; | |
| 1620 | this.wrapperStyle = this.wrapper.style; | |
| 1621 | this.indicator = this.wrapper.children[0]; | |
| 1622 | this.indicatorStyle = this.indicator.style; | |
| 1623 | this.scroller = scroller; | |
| 1624 | ||
| 1625 | this.options = { | |
| 1626 | listenX: true, | |
| 1627 | listenY: true, | |
| 1628 | interactive: false, | |
| 1629 | resize: true, | |
| 1630 | defaultScrollbars: false, | |
| 1631 | shrink: false, | |
| 1632 | fade: false, | |
| 1633 | speedRatioX: 0, | |
| 1634 | speedRatioY: 0 | |
| 1635 | }; | |
| 1636 | ||
| 1637 | for ( var i in options ) { | |
| 1638 | this.options[i] = options[i]; | |
| 1639 | } | |
| 1640 | ||
| 1641 | this.sizeRatioX = 1; | |
| 1642 | this.sizeRatioY = 1; | |
| 1643 | this.maxPosX = 0; | |
| 1644 | this.maxPosY = 0; | |
| 1645 | ||
| 1646 | if ( this.options.interactive ) { | |
| 1647 | if ( !this.options.disableTouch ) { | |
| 1648 | utils.addEvent(this.indicator, 'touchstart', this); | |
| 1649 | utils.addEvent(window, 'touchend', this); | |
| 1650 | } | |
| 1651 | if ( !this.options.disablePointer ) { | |
| 1652 | utils.addEvent(this.indicator, utils.prefixPointerEvent('pointerdown'), this); | |
| 1653 | utils.addEvent(window, utils.prefixPointerEvent('pointerup'), this); | |
| 1654 | } | |
| 1655 | if ( !this.options.disableMouse ) { | |
| 1656 | utils.addEvent(this.indicator, 'mousedown', this); | |
| 1657 | utils.addEvent(window, 'mouseup', this); | |
| 1658 | } | |
| 1659 | } | |
| 1660 | ||
| 1661 | if ( this.options.fade ) { | |
| 1662 | this.wrapperStyle[utils.style.transform] = this.scroller.translateZ; | |
| 1663 | this.wrapperStyle[utils.style.transitionDuration] = utils.isBadAndroid ? '0.001s' : '0ms'; | |
| 1664 | this.wrapperStyle.opacity = '0'; | |
| 1665 | } | |
| 1666 | } | |
| 1667 | ||
| 1668 | Indicator.prototype = { | |
| 1669 | handleEvent: function (e) { | |
| 1670 | switch ( e.type ) { | |
| 1671 | case 'touchstart': | |
| 1672 | case 'pointerdown': | |
| 1673 | case 'MSPointerDown': | |
| 1674 | case 'mousedown': | |
| 1675 | this._start(e); | |
| 1676 | break; | |
| 1677 | case 'touchmove': | |
| 1678 | case 'pointermove': | |
| 1679 | case 'MSPointerMove': | |
| 1680 | case 'mousemove': | |
| 1681 | this._move(e); | |
| 1682 | break; | |
| 1683 | case 'touchend': | |
| 1684 | case 'pointerup': | |
| 1685 | case 'MSPointerUp': | |
| 1686 | case 'mouseup': | |
| 1687 | case 'touchcancel': | |
| 1688 | case 'pointercancel': | |
| 1689 | case 'MSPointerCancel': | |
| 1690 | case 'mousecancel': | |
| 1691 | this._end(e); | |
| 1692 | break; | |
| 1693 | } | |
| 1694 | }, | |
| 1695 | ||
| 1696 | destroy: function () { | |
| 1697 | if ( this.options.interactive ) { | |
| 1698 | utils.removeEvent(this.indicator, 'touchstart', this); | |
| 1699 | utils.removeEvent(this.indicator, utils.prefixPointerEvent('pointerdown'), this); | |
| 1700 | utils.removeEvent(this.indicator, 'mousedown', this); | |
| 1701 | ||
| 1702 | utils.removeEvent(window, 'touchmove', this); | |
| 1703 | utils.removeEvent(window, utils.prefixPointerEvent('pointermove'), this); | |
| 1704 | utils.removeEvent(window, 'mousemove', this); | |
| 1705 | ||
| 1706 | utils.removeEvent(window, 'touchend', this); | |
| 1707 | utils.removeEvent(window, utils.prefixPointerEvent('pointerup'), this); | |
| 1708 | utils.removeEvent(window, 'mouseup', this); | |
| 1709 | } | |
| 1710 | ||
| 1711 | if ( this.options.defaultScrollbars ) { | |
| 1712 | this.wrapper.parentNode.removeChild(this.wrapper); | |
| 1713 | } | |
| 1714 | }, | |
| 1715 | ||
| 1716 | _start: function (e) { | |
| 1717 | var point = e.touches ? e.touches[0] : e; | |
| 1718 | ||
| 1719 | e.preventDefault(); | |
| 1720 | e.stopPropagation(); | |
| 1721 | ||
| 1722 | this.transitionTime(); | |
| 1723 | ||
| 1724 | this.initiated = true; | |
| 1725 | this.moved = false; | |
| 1726 | this.lastPointX = point.pageX; | |
| 1727 | this.lastPointY = point.pageY; | |
| 1728 | ||
| 1729 | this.startTime = utils.getTime(); | |
| 1730 | ||
| 1731 | if ( !this.options.disableTouch ) { | |
| 1732 | utils.addEvent(window, 'touchmove', this); | |
| 1733 | } | |
| 1734 | if ( !this.options.disablePointer ) { | |
| 1735 | utils.addEvent(window, utils.prefixPointerEvent('pointermove'), this); | |
| 1736 | } | |
| 1737 | if ( !this.options.disableMouse ) { | |
| 1738 | utils.addEvent(window, 'mousemove', this); | |
| 1739 | } | |
| 1740 | ||
| 1741 | this.scroller._execEvent('beforeScrollStart'); | |
| 1742 | }, | |
| 1743 | ||
| 1744 | _move: function (e) { | |
| 1745 | var point = e.touches ? e.touches[0] : e, | |
| 1746 | deltaX, deltaY, | |
| 1747 | newX, newY, | |
| 1748 | timestamp = utils.getTime(); | |
| 1749 | ||
| 1750 | if ( !this.moved ) { | |
| 1751 | this.scroller._execEvent('scrollStart'); | |
| 1752 | } | |
| 1753 | ||
| 1754 | this.moved = true; | |
| 1755 | ||
| 1756 | deltaX = point.pageX - this.lastPointX; | |
| 1757 | this.lastPointX = point.pageX; | |
| 1758 | ||
| 1759 | deltaY = point.pageY - this.lastPointY; | |
| 1760 | this.lastPointY = point.pageY; | |
| 1761 | ||
| 1762 | newX = this.x + deltaX; | |
| 1763 | newY = this.y + deltaY; | |
| 1764 | ||
| 1765 | this._pos(newX, newY); | |
| 1766 | ||
| 1767 | // INSERT POINT: indicator._move | |
| 1768 | ||
| 1769 | e.preventDefault(); | |
| 1770 | e.stopPropagation(); | |
| 1771 | }, | |
| 1772 | ||
| 1773 | _end: function (e) { | |
| 1774 | if ( !this.initiated ) { | |
| 1775 | return; | |
| 1776 | } | |
| 1777 | ||
| 1778 | this.initiated = false; | |
| 1779 | ||
| 1780 | e.preventDefault(); | |
| 1781 | e.stopPropagation(); | |
| 1782 | ||
| 1783 | utils.removeEvent(window, 'touchmove', this); | |
| 1784 | utils.removeEvent(window, utils.prefixPointerEvent('pointermove'), this); | |
| 1785 | utils.removeEvent(window, 'mousemove', this); | |
| 1786 | ||
| 1787 | if ( this.scroller.options.snap ) { | |
| 1788 | var snap = this.scroller._nearestSnap(this.scroller.x, this.scroller.y); | |
| 1789 | ||
| 1790 | var time = this.options.snapSpeed || Math.max( | |
| 1791 | Math.max( | |
| 1792 | Math.min(Math.abs(this.scroller.x - snap.x), 1000), | |
| 1793 | Math.min(Math.abs(this.scroller.y - snap.y), 1000) | |
| 1794 | ), 300); | |
| 1795 | ||
| 1796 | if ( this.scroller.x != snap.x || this.scroller.y != snap.y ) { | |
| 1797 | this.scroller.directionX = 0; | |
| 1798 | this.scroller.directionY = 0; | |
| 1799 | this.scroller.currentPage = snap; | |
| 1800 | this.scroller.scrollTo(snap.x, snap.y, time, this.scroller.options.bounceEasing); | |
| 1801 | } | |
| 1802 | } | |
| 1803 | ||
| 1804 | if ( this.moved ) { | |
| 1805 | this.scroller._execEvent('scrollEnd'); | |
| 1806 | } | |
| 1807 | }, | |
| 1808 | ||
| 1809 | transitionTime: function (time) { | |
| 1810 | time = time || 0; | |
| 1811 | this.indicatorStyle[utils.style.transitionDuration] = time + 'ms'; | |
| 1812 | ||
| 1813 | if ( !time && utils.isBadAndroid ) { | |
| 1814 | this.indicatorStyle[utils.style.transitionDuration] = '0.001s'; | |
| 1815 | } | |
| 1816 | }, | |
| 1817 | ||
| 1818 | transitionTimingFunction: function (easing) { | |
| 1819 | this.indicatorStyle[utils.style.transitionTimingFunction] = easing; | |
| 1820 | }, | |
| 1821 | ||
| 1822 | refresh: function () { | |
| 1823 | this.transitionTime(); | |
| 1824 | ||
| 1825 | if ( this.options.listenX && !this.options.listenY ) { | |
| 1826 | this.indicatorStyle.display = this.scroller.hasHorizontalScroll ? 'block' : 'none'; | |
| 1827 | } else if ( this.options.listenY && !this.options.listenX ) { | |
| 1828 | this.indicatorStyle.display = this.scroller.hasVerticalScroll ? 'block' : 'none'; | |
| 1829 | } else { | |
| 1830 | this.indicatorStyle.display = this.scroller.hasHorizontalScroll || this.scroller.hasVerticalScroll ? 'block' : 'none'; | |
| 1831 | } | |
| 1832 | ||
| 1833 | if ( this.scroller.hasHorizontalScroll && this.scroller.hasVerticalScroll ) { | |
| 1834 | utils.addClass(this.wrapper, 'iScrollBothScrollbars'); | |
| 1835 | utils.removeClass(this.wrapper, 'iScrollLoneScrollbar'); | |
| 1836 | ||
| 1837 | if ( this.options.defaultScrollbars && this.options.customStyle ) { | |
| 1838 | if ( this.options.listenX ) { | |
| 1839 | this.wrapper.style.right = '8px'; | |
| 1840 | } else { | |
| 1841 | this.wrapper.style.bottom = '8px'; | |
| 1842 | } | |
| 1843 | } | |
| 1844 | } else { | |
| 1845 | utils.removeClass(this.wrapper, 'iScrollBothScrollbars'); | |
| 1846 | utils.addClass(this.wrapper, 'iScrollLoneScrollbar'); | |
| 1847 | ||
| 1848 | if ( this.options.defaultScrollbars && this.options.customStyle ) { | |
| 1849 | if ( this.options.listenX ) { | |
| 1850 | this.wrapper.style.right = '2px'; | |
| 1851 | } else { | |
| 1852 | this.wrapper.style.bottom = '2px'; | |
| 1853 | } | |
| 1854 | } | |
| 1855 | } | |
| 1856 | ||
| 1857 | var r = this.wrapper.offsetHeight; // force refresh | |
| 1858 | ||
| 1859 | if ( this.options.listenX ) { | |
| 1860 | this.wrapperWidth = this.wrapper.clientWidth; | |
| 1861 | if ( this.options.resize ) { | |
| 1862 | this.indicatorWidth = Math.max(Math.round(this.wrapperWidth * this.wrapperWidth / (this.scroller.scrollerWidth || this.wrapperWidth || 1)), 8); | |
| 1863 | this.indicatorStyle.width = this.indicatorWidth + 'px'; | |
| 1864 | } else { | |
| 1865 | this.indicatorWidth = this.indicator.clientWidth; | |
| 1866 | } | |
| 1867 | ||
| 1868 | this.maxPosX = this.wrapperWidth - this.indicatorWidth; | |
| 1869 | ||
| 1870 | if ( this.options.shrink == 'clip' ) { | |
| 1871 | this.minBoundaryX = -this.indicatorWidth + 8; | |
| 1872 | this.maxBoundaryX = this.wrapperWidth - 8; | |
| 1873 | } else { | |
| 1874 | this.minBoundaryX = 0; | |
| 1875 | this.maxBoundaryX = this.maxPosX; | |
| 1876 | } | |
| 1877 | ||
| 1878 | this.sizeRatioX = this.options.speedRatioX || (this.scroller.maxScrollX && (this.maxPosX / this.scroller.maxScrollX)); | |
| 1879 | } | |
| 1880 | ||
| 1881 | if ( this.options.listenY ) { | |
| 1882 | this.wrapperHeight = this.wrapper.clientHeight; | |
| 1883 | if ( this.options.resize ) { | |
| 1884 | this.indicatorHeight = Math.max(Math.round(this.wrapperHeight * this.wrapperHeight / (this.scroller.scrollerHeight || this.wrapperHeight || 1)), 8); | |
| 1885 | this.indicatorStyle.height = this.indicatorHeight + 'px'; | |
| 1886 | } else { | |
| 1887 | this.indicatorHeight = this.indicator.clientHeight; | |
| 1888 | } | |
| 1889 | ||
| 1890 | this.maxPosY = this.wrapperHeight - this.indicatorHeight; | |
| 1891 | ||
| 1892 | if ( this.options.shrink == 'clip' ) { | |
| 1893 | this.minBoundaryY = -this.indicatorHeight + 8; | |
| 1894 | this.maxBoundaryY = this.wrapperHeight - 8; | |
| 1895 | } else { | |
| 1896 | this.minBoundaryY = 0; | |
| 1897 | this.maxBoundaryY = this.maxPosY; | |
| 1898 | } | |
| 1899 | ||
| 1900 | this.maxPosY = this.wrapperHeight - this.indicatorHeight; | |
| 1901 | this.sizeRatioY = this.options.speedRatioY || (this.scroller.maxScrollY && (this.maxPosY / this.scroller.maxScrollY)); | |
| 1902 | } | |
| 1903 | ||
| 1904 | this.updatePosition(); | |
| 1905 | }, | |
| 1906 | ||
| 1907 | updatePosition: function () { | |
| 1908 | var x = this.options.listenX && Math.round(this.sizeRatioX * this.scroller.x) || 0, | |
| 1909 | y = this.options.listenY && Math.round(this.sizeRatioY * this.scroller.y) || 0; | |
| 1910 | ||
| 1911 | if ( !this.options.ignoreBoundaries ) { | |
| 1912 | if ( x < this.minBoundaryX ) { | |
| 1913 | if ( this.options.shrink == 'scale' ) { | |
| 1914 | this.width = Math.max(this.indicatorWidth + x, 8); | |
| 1915 | this.indicatorStyle.width = this.width + 'px'; | |
| 1916 | } | |
| 1917 | x = this.minBoundaryX; | |
| 1918 | } else if ( x > this.maxBoundaryX ) { | |
| 1919 | if ( this.options.shrink == 'scale' ) { | |
| 1920 | this.width = Math.max(this.indicatorWidth - (x - this.maxPosX), 8); | |
| 1921 | this.indicatorStyle.width = this.width + 'px'; | |
| 1922 | x = this.maxPosX + this.indicatorWidth - this.width; | |
| 1923 | } else { | |
| 1924 | x = this.maxBoundaryX; | |
| 1925 | } | |
| 1926 | } else if ( this.options.shrink == 'scale' && this.width != this.indicatorWidth ) { | |
| 1927 | this.width = this.indicatorWidth; | |
| 1928 | this.indicatorStyle.width = this.width + 'px'; | |
| 1929 | } | |
| 1930 | ||
| 1931 | if ( y < this.minBoundaryY ) { | |
| 1932 | if ( this.options.shrink == 'scale' ) { | |
| 1933 | this.height = Math.max(this.indicatorHeight + y * 3, 8); | |
| 1934 | this.indicatorStyle.height = this.height + 'px'; | |
| 1935 | } | |
| 1936 | y = this.minBoundaryY; | |
| 1937 | } else if ( y > this.maxBoundaryY ) { | |
| 1938 | if ( this.options.shrink == 'scale' ) { | |
| 1939 | this.height = Math.max(this.indicatorHeight - (y - this.maxPosY) * 3, 8); | |
| 1940 | this.indicatorStyle.height = this.height + 'px'; | |
| 1941 | y = this.maxPosY + this.indicatorHeight - this.height; | |
| 1942 | } else { | |
| 1943 | y = this.maxBoundaryY; | |
| 1944 | } | |
| 1945 | } else if ( this.options.shrink == 'scale' && this.height != this.indicatorHeight ) { | |
| 1946 | this.height = this.indicatorHeight; | |
| 1947 | this.indicatorStyle.height = this.height + 'px'; | |
| 1948 | } | |
| 1949 | } | |
| 1950 | ||
| 1951 | this.x = x; | |
| 1952 | this.y = y; | |
| 1953 | ||
| 1954 | if ( this.scroller.options.useTransform ) { | |
| 1955 | this.indicatorStyle[utils.style.transform] = 'translate(' + x + 'px,' + y + 'px)' + this.scroller.translateZ; | |
| 1956 | } else { | |
| 1957 | this.indicatorStyle.left = x + 'px'; | |
| 1958 | this.indicatorStyle.top = y + 'px'; | |
| 1959 | } | |
| 1960 | }, | |
| 1961 | ||
| 1962 | _pos: function (x, y) { | |
| 1963 | if ( x < 0 ) { | |
| 1964 | x = 0; | |
| 1965 | } else if ( x > this.maxPosX ) { | |
| 1966 | x = this.maxPosX; | |
| 1967 | } | |
| 1968 | ||
| 1969 | if ( y < 0 ) { | |
| 1970 | y = 0; | |
| 1971 | } else if ( y > this.maxPosY ) { | |
| 1972 | y = this.maxPosY; | |
| 1973 | } | |
| 1974 | ||
| 1975 | x = this.options.listenX ? Math.round(x / this.sizeRatioX) : this.scroller.x; | |
| 1976 | y = this.options.listenY ? Math.round(y / this.sizeRatioY) : this.scroller.y; | |
| 1977 | ||
| 1978 | this.scroller.scrollTo(x, y); | |
| 1979 | }, | |
| 1980 | ||
| 1981 | fade: function (val, hold) { | |
| 1982 | if ( hold && !this.visible ) { | |
| 1983 | return; | |
| 1984 | } | |
| 1985 | ||
| 1986 | clearTimeout(this.fadeTimeout); | |
| 1987 | this.fadeTimeout = null; | |
| 1988 | ||
| 1989 | var time = val ? 250 : 500, | |
| 1990 | delay = val ? 0 : 300; | |
| 1991 | ||
| 1992 | val = val ? '1' : '0'; | |
| 1993 | ||
| 1994 | this.wrapperStyle[utils.style.transitionDuration] = time + 'ms'; | |
| 1995 | ||
| 1996 | this.fadeTimeout = setTimeout((function (val) { | |
| 1997 | this.wrapperStyle.opacity = val; | |
| 1998 | this.visible = +val; | |
| 1999 | }).bind(this, val), delay); | |
| 2000 | } | |
| 2001 | }; | |
| 2002 | ||
| 2003 | IScroll.utils = utils; | |
| 2004 | ||
| 2005 | if ( typeof module != 'undefined' && module.exports ) { | |
| 2006 | module.exports = IScroll; | |
| 2007 | } else { | |
| 2008 | window.IScroll = IScroll; | |
| 2009 | } | |
| 2010 | ||
| 2011 | })(window, document, Math); | |
