vendor: 29,972 bytes, lines 1-702
1/** 2 * bxSlider v4.2.12 3 * Copyright 2013-2015 Steven Wanderski 4 * Written while drinking Belgian ales and listening to jazz 5 * Licensed under MIT (http://opensource.org/licenses/MIT) 6 */ 7 8;(function($) { 9 10 var defaults = { 11 12 // GENERAL 13 mode: 'horizontal', 14 slideSelector: '', 15 infiniteLoop: true, 16 hideControlOnEnd: false, 17 speed: 500, 18 easing: null, 19 slideMargin: 0, 20 startSlide: 0, 21 randomStart: false, 22 captions: false, 23 ticker: false, 24 tickerHover: false, 25 adaptiveHeight: false, 26 adaptiveHeightSpeed: 500, 27 video: false, 28 useCSS: true, 29 preloadImages: 'visible', 30 responsive: true, 31 slideZIndex: 50, 32 wrapperClass: 'bx-wrapper', 33 34 // TOUCH 35 touchEnabled: true, 36 swipeThreshold: 50, 37 oneToOneTouch: true, 38 preventDefaultSwipeX: true, 39 preventDefaultSwipeY: false, 40 41 // ACCESSIBILITY 42 ariaLive: true, 43 ariaHidden: true, 44 45 // KEYBOARD 46 keyboardEnabled: false, 47 48 // PAGER 49 pager: true, 50 pagerType: 'full', 51 pagerShortSeparator: ' / ', 52 pagerSelector: null, 53 buildPager: null, 54 pagerCustom: null, 55 56 // CONTROLS 57 controls: true, 58 nextText: 'Next', 59 prevText: 'Prev', 60 nextSelector: null, 61 prevSelector: null, 62 autoControls: false, 63 startText: 'Start', 64 stopText: 'Stop', 65 autoControlsCombine: false, 66 autoControlsSelector: null, 67 68 // AUTO 69 auto: false, 70 pause: 4000, 71 autoStart: true, 72 autoDirection: 'next', 73 stopAutoOnClick: false, 74 autoHover: false, 75 autoDelay: 0, 76 autoSlideForOnePage: false, 77 78 // CAROUSEL 79 minSlides: 1, 80 maxSlides: 1, 81 moveSlides: 0, 82 slideWidth: 0, 83 shrinkItems: false, 84 85 // CALLBACKS 86 onSliderLoad: function() { return true; }, 87 onSlideBefore: function() { return true; }, 88 onSlideAfter: function() { return true; }, 89 onSlideNext: function() { return true; }, 90 onSlidePrev: function() { return true; }, 91 onSliderResize: function() { return true; } 92 }; 93 94 $.fn.bxSlider = function(options) { 95 96 if (this.length === 0) { 97 return this; 98 } 99 100 // support multiple elements 101 if (this.length > 1) { 102 this.each(function() { 103 $(this).bxSlider(options); 104 }); 105 return this; 106 } 107 108 // create a namespace to be used throughout the plugin 109 var slider = {}, 110 // set a reference to our slider element 111 el = this, 112 // get the original window dimens (thanks a lot IE) 113 windowWidth = $(window).width(), 114 windowHeight = $(window).height(); 115 116 // Return if slider is already initialized 117 if ($(el).data('bxSlider')) { return; } 118 119 /** 120 * =================================================================================== 121 * = PRIVATE FUNCTIONS 122 * =================================================================================== 123 */ 124 125 /** 126 * Initializes namespace settings to be used throughout plugin 127 */ 128 var init = function() { 129 // Return if slider is already initialized 130 if ($(el).data('bxSlider')) { return; } 131 // merge user-supplied options with the defaults 132 slider.settings = $.extend({}, defaults, options); 133 var isChrome = navigator.userAgent.indexOf('Chrome') > -1 134 if (isChrome && windowWidth > 1200) { 135 slider.settings.touchEnabled = false 136 } 137 // parse slideWidth setting 138 slider.settings.slideWidth = parseInt(slider.settings.slideWidth); 139 // store the original children 140 slider.children = el.children(slider.settings.slideSelector); 141 // check if actual number of slides is less than minSlides / maxSlides 142 if (slider.children.length < slider.settings.minSlides) { slider.settings.minSlides = slider.children.length; } 143 if (slider.children.length < slider.settings.maxSlides) { slider.settings.maxSlides = slider.children.length; } 144 // if random start, set the startSlide setting to random number 145 if (slider.settings.randomStart) { slider.settings.startSlide = Math.floor(Math.random() * slider.children.length); } 146 // store active slide information 147 slider.active = { index: slider.settings.startSlide }; 148 // store if the slider is in carousel mode (displaying / moving multiple slides) 149 slider.carousel = slider.settings.minSlides > 1 || slider.settings.maxSlides > 1 ? true : false; 150 // if carousel, force preloadImages = 'all' 151 if (slider.carousel) { slider.settings.preloadImages = 'all'; } 152 // calculate the min / max width thresholds based on min / max number of slides 153 // used to setup and update carousel slides dimensions 154 slider.minThreshold = (slider.settings.minSlides * slider.settings.slideWidth) + ((slider.settings.minSlides - 1) * slider.settings.slideMargin); 155 slider.maxThreshold = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 156 // store the current state of the slider (if currently animating, working is true) 157 slider.working = false; 158 // initialize the controls object 159 slider.controls = {}; 160 // initialize an auto interval 161 slider.interval = null; 162 // determine which property to use for transitions 163 slider.animProp = slider.settings.mode === 'vertical' ? 'top' : 'left'; 164 // determine if hardware acceleration can be used 165 slider.usingCSS = slider.settings.useCSS && slider.settings.mode !== 'fade' && (function() { 166 // create our test div element 167 var div = document.createElement('div'), 168 // css transition properties 169 props = ['WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective']; 170 // test for each property 171 for (var i = 0; i < props.length; i++) { 172 if (div.style[props[i]] !== undefined) { 173 slider.cssPrefix = props[i].replace('Perspective', '').toLowerCase(); 174 slider.animProp = '-' + slider.cssPrefix + '-transform'; 175 return true; 176 } 177 } 178 return false; 179 }()); 180 // if vertical mode always make maxSlides and minSlides equal 181 if (slider.settings.mode === 'vertical') { slider.settings.maxSlides = slider.settings.minSlides; } 182 // save original style data 183 el.data('origStyle', el.attr('style')); 184 el.children(slider.settings.slideSelector).each(function() { 185 $(this).data('origStyle', $(this).attr('style')); 186 }); 187 188 // perform all DOM / CSS modifications 189 setup(); 190 }; 191 192 /** 193 * Performs all DOM and CSS modifications 194 */ 195 var setup = function() { 196 var preloadSelector = slider.children.eq(slider.settings.startSlide); // set the default preload selector (visible) 197 198 // wrap el in a wrapper 199 el.wrap('<div class="' + slider.settings.wrapperClass + '"><div class="bx-viewport"></div></div>'); 200 // store a namespace reference to .bx-viewport 201 slider.viewport = el.parent(); 202 203 // add aria-live if the setting is enabled and ticker mode is disabled 204 if (slider.settings.ariaLive && !slider.settings.ticker) { 205 slider.viewport.attr('aria-live', 'polite'); 206 } 207 // add a loading div to display while images are loading 208 slider.loader = $('<div class="bx-loading" />'); 209 slider.viewport.prepend(slider.loader); 210 // set el to a massive width, to hold any needed slides 211 // also strip any margin and padding from el 212 el.css({ 213 width: slider.settings.mode === 'horizontal' ? (slider.children.length * 1000 + 215) + '%' : 'auto', 214 position: 'relative' 215 }); 216 // if using CSS, add the easing property 217 if (slider.usingCSS && slider.settings.easing) { 218 el.css('-' + slider.cssPrefix + '-transition-timing-function', slider.settings.easing); 219 // if not using CSS and no easing value was supplied, use the default JS animation easing (swing) 220 } else if (!slider.settings.easing) { 221 slider.settings.easing = 'swing'; 222 } 223 // make modifications to the viewport (.bx-viewport) 224 slider.viewport.css({ 225 width: '100%', 226 overflow: 'hidden', 227 position: 'relative' 228 }); 229 slider.viewport.parent().css({ 230 maxWidth: getViewportMaxWidth() 231 }); 232 // apply css to all slider children 233 slider.children.css({ 234 float: slider.settings.mode === 'horizontal' ? 'left' : 'none', 235 listStyle: 'none', 236 position: 'relative' 237 }); 238 // apply the calculated width after the float is applied to prevent scrollbar interference 239 slider.children.css('width', getSlideWidth()); 240 // if slideMargin is supplied, add the css 241 if (slider.settings.mode === 'horizontal' && slider.settings.slideMargin > 0) { slider.children.css('marginRight', slider.settings.slideMargin); } 242 if (slider.settings.mode === 'vertical' && slider.settings.slideMargin > 0) { slider.children.css('marginBottom', slider.settings.slideMargin); } 243 // if "fade" mode, add positioning and z-index CSS 244 if (slider.settings.mode === 'fade') { 245 slider.children.css({ 246 position: 'absolute', 247 zIndex: 0, 248 display: 'none' 249 }); 250 // prepare the z-index on the showing element 251 slider.children.eq(slider.settings.startSlide).css({zIndex: slider.settings.slideZIndex, display: 'block'}); 252 } 253 // create an element to contain all slider controls (pager, start / stop, etc) 254 slider.controls.el = $('<div class="bx-controls" />'); 255 // if captions are requested, add them 256 if (slider.settings.captions) { appendCaptions(); } 257 // check if startSlide is last slide 258 slider.active.last = slider.settings.startSlide === getPagerQty() - 1; 259 // if video is true, set up the fitVids plugin 260 if (slider.settings.video) { el.fitVids(); } 261 if (slider.settings.preloadImages === 'all' || slider.settings.ticker) { preloadSelector = slider.children; } 262 // only check for control addition if not in "ticker" mode 263 if (!slider.settings.ticker) { 264 // if controls are requested, add them 265 if (slider.settings.controls) { appendControls(); } 266 // if auto is true, and auto controls are requested, add them 267 if (slider.settings.auto && slider.settings.autoControls) { appendControlsAuto(); } 268 // if pager is requested, add it 269 if (slider.settings.pager) { appendPager(); } 270 // if any control option is requested, add the controls wrapper 271 if (slider.settings.controls || slider.settings.autoControls || slider.settings.pager) { slider.viewport.after(slider.controls.el); } 272 // if ticker mode, do not allow a pager 273 } else { 274 slider.settings.pager = false; 275 } 276 loadElements(preloadSelector, start); 277 }; 278 279 var loadElements = function(selector, callback) { 280 var total = selector.find('img:not([src=""]), iframe').length, 281 count = 0; 282 if (total === 0) { 283 callback(); 284 return; 285 } 286 selector.find('img:not([src=""]), iframe').each(function() { 287 $(this).one('load error', function() { 288 if (++count === total) { callback(); } 289 }).each(function() { 290 if (this.complete) { $(this).trigger('load'); } 291 }); 292 }); 293 }; 294 295 /** 296 * Start the slider 297 */ 298 var start = function() { 299 // if infinite loop, prepare additional slides 300 if (slider.settings.infiniteLoop && slider.settings.mode !== 'fade' && !slider.settings.ticker) { 301 var slice = slider.settings.mode === 'vertical' ? slider.settings.minSlides : slider.settings.maxSlides, 302 sliceAppend = slider.children.slice(0, slice).clone(true).addClass('bx-clone'), 303 slicePrepend = slider.children.slice(-slice).clone(true).addClass('bx-clone'); 304 if (slider.settings.ariaHidden) { 305 sliceAppend.attr('aria-hidden', true); 306 slicePrepend.attr('aria-hidden', true); 307 } 308 el.append(sliceAppend).prepend(slicePrepend); 309 } 310 // remove the loading DOM element 311 slider.loader.remove(); 312 // set the left / top position of "el" 313 setSlidePosition(); 314 // if "vertical" mode, always use adaptiveHeight to prevent odd behavior 315 if (slider.settings.mode === 'vertical') { slider.settings.adaptiveHeight = true; } 316 // set the viewport height 317 slider.viewport.height(getViewportHeight()); 318 // make sure everything is positioned just right (same as a window resize) 319 el.redrawSlider(); 320 // onSliderLoad callback 321 slider.settings.onSliderLoad.call(el, slider.active.index); 322 // slider has been fully initialized 323 slider.initialized = true; 324 // bind the resize call to the window 325 if (slider.settings.responsive) { $(window).bind('resize', resizeWindow); } 326 // if auto is true and has more than 1 page, start the show 327 if (slider.settings.auto && slider.settings.autoStart && (getPagerQty() > 1 || slider.settings.autoSlideForOnePage)) { initAuto(); } 328 // if ticker is true, start the ticker 329 if (slider.settings.ticker) { initTicker(); } 330 // if pager is requested, make the appropriate pager link active 331 if (slider.settings.pager) { updatePagerActive(slider.settings.startSlide); } 332 // check for any updates to the controls (like hideControlOnEnd updates) 333 if (slider.settings.controls) { updateDirectionControls(); } 334 // if touchEnabled is true, setup the touch events 335 if (slider.settings.touchEnabled && !slider.settings.ticker) { initTouch(); } 336 // if keyboardEnabled is true, setup the keyboard events 337 if (slider.settings.keyboardEnabled && !slider.settings.ticker) { 338 $(document).keydown(keyPress); 339 } 340 }; 341 342 /** 343 * Returns the calculated height of the viewport, used to determine either adaptiveHeight or the maxHeight value 344 */ 345 var getViewportHeight = function() { 346 var height = 0; 347 // first determine which children (slides) should be used in our height calculation 348 var children = $(); 349 // if mode is not "vertical" and adaptiveHeight is false, include all children 350 if (slider.settings.mode !== 'vertical' && !slider.settings.adaptiveHeight) { 351 children = slider.children; 352 } else { 353 // if not carousel, return the single active child 354 if (!slider.carousel) { 355 children = slider.children.eq(slider.active.index); 356 // if carousel, return a slice of children 357 } else { 358 // get the individual slide index 359 var currentIndex = slider.settings.moveSlides === 1 ? slider.active.index : slider.active.index * getMoveBy(); 360 // add the current slide to the children 361 children = slider.children.eq(currentIndex); 362 // cycle through the remaining "showing" slides 363 for (i = 1; i <= slider.settings.maxSlides - 1; i++) { 364 // if looped back to the start 365 if (currentIndex + i >= slider.children.length) { 366 children = children.add(slider.children.eq(i - 1)); 367 } else { 368 children = children.add(slider.children.eq(currentIndex + i)); 369 } 370 } 371 } 372 } 373 // if "vertical" mode, calculate the sum of the heights of the children 374 if (slider.settings.mode === 'vertical') { 375 children.each(function(index) { 376 height += $(this).outerHeight(); 377 }); 378 // add user-supplied margins 379 if (slider.settings.slideMargin > 0) { 380 height += slider.settings.slideMargin * (slider.settings.minSlides - 1); 381 } 382 // if not "vertical" mode, calculate the max height of the children 383 } else { 384 height = Math.max.apply(Math, children.map(function() { 385 return $(this).outerHeight(false); 386 }).get()); 387 } 388 389 if (slider.viewport.css('box-sizing') === 'border-box') { 390 height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')) + 391 parseFloat(slider.viewport.css('border-top-width')) + parseFloat(slider.viewport.css('border-bottom-width')); 392 } else if (slider.viewport.css('box-sizing') === 'padding-box') { 393 height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')); 394 } 395 396 return height; 397 }; 398 399 /** 400 * Returns the calculated width to be used for the outer wrapper / viewport 401 */ 402 var getViewportMaxWidth = function() { 403 var width = '100%'; 404 if (slider.settings.slideWidth > 0) { 405 if (slider.settings.mode === 'horizontal') { 406 width = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 407 } else { 408 width = slider.settings.slideWidth; 409 } 410 } 411 return width; 412 }; 413 414 /** 415 * Returns the calculated width to be applied to each slide 416 */ 417 var getSlideWidth = function() { 418 var newElWidth = slider.settings.slideWidth, // start with any user-supplied slide width 419 wrapWidth = slider.viewport.width(); // get the current viewport width 420 // if slide width was not supplied, or is larger than the viewport use the viewport width 421 if (slider.settings.slideWidth === 0 || 422 (slider.settings.slideWidth > wrapWidth && !slider.carousel) || 423 slider.settings.mode === 'vertical') { 424 newElWidth = wrapWidth; 425 // if carousel, use the thresholds to determine the width 426 } else if (slider.settings.maxSlides > 1 && slider.settings.mode === 'horizontal') { 427 if (wrapWidth > slider.maxThreshold) { 428 return newElWidth; 429 } else if (wrapWidth < slider.minThreshold) { 430 newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides; 431 } else if (slider.settings.shrinkItems) { 432 newElWidth = Math.floor((wrapWidth + slider.settings.slideMargin) / (Math.ceil((wrapWidth + slider.settings.slideMargin) / (newElWidth + slider.settings.slideMargin))) - slider.settings.slideMargin); 433 } 434 } 435 return newElWidth; 436 }; 437 438 /** 439 * Returns the number of slides currently visible in the viewport (includes partially visible slides) 440 */ 441 var getNumberSlidesShowing = function() { 442 var slidesShowing = 1, 443 childWidth = null; 444 if (slider.settings.mode === 'horizontal' && slider.settings.slideWidth > 0) { 445 // if viewport is smaller than minThreshold, return minSlides 446 if (slider.viewport.width() < slider.minThreshold) { 447 slidesShowing = slider.settings.minSlides; 448 // if viewport is larger than maxThreshold, return maxSlides 449 } else if (slider.viewport.width() > slider.maxThreshold) { 450 slidesShowing = slider.settings.maxSlides; 451 // if viewport is between min / max thresholds, divide viewport width by first child width 452 } else { 453 childWidth = slider.children.first().width() + slider.settings.slideMargin; 454 slidesShowing = Math.floor((slider.viewport.width() + 455 slider.settings.slideMargin) / childWidth); 456 } 457 // if "vertical" mode, slides showing will always be minSlides 458 } else if (slider.settings.mode === 'vertical') { 459 slidesShowing = slider.settings.minSlides; 460 } 461 return slidesShowing; 462 }; 463 464 /** 465 * Returns the number of pages (one full viewport of slides is one "page") 466 */ 467 var getPagerQty = function() { 468 var pagerQty = 0, 469 breakPoint = 0, 470 counter = 0; 471 // if moveSlides is specified by the user 472 if (slider.settings.moveSlides > 0) { 473 if (slider.settings.infiniteLoop) { 474 pagerQty = Math.ceil(slider.children.length / getMoveBy()); 475 } else { 476 // when breakpoint goes above children length, counter is the number of pages 477 while (breakPoint < slider.children.length) { 478 ++pagerQty; 479 breakPoint = counter + getNumberSlidesShowing(); 480 counter += slider.settings.moveSlides <= getNumberSlidesShowing() ? slider.settings.moveSlides : getNumberSlidesShowing(); 481 } 482 } 483 // if moveSlides is 0 (auto) divide children length by sides showing, then round up 484 } else { 485 pagerQty = Math.ceil(slider.children.length / getNumberSlidesShowing()); 486 } 487 return pagerQty; 488 }; 489 490 /** 491 * Returns the number of individual slides by which to shift the slider 492 */ 493 var getMoveBy = function() { 494 // if moveSlides was set by the user and moveSlides is less than number of slides showing 495 if (slider.settings.moveSlides > 0 && slider.settings.moveSlides <= getNumberSlidesShowing()) { 496 return slider.settings.moveSlides; 497 } 498 // if moveSlides is 0 (auto) 499 return getNumberSlidesShowing(); 500 }; 501 502 /** 503 * Sets the slider's (el) left or top position 504 */ 505 var setSlidePosition = function() { 506 var position, lastChild, lastShowingIndex; 507 // if last slide, not infinite loop, and number of children is larger than specified maxSlides 508 if (slider.children.length > slider.settings.maxSlides && slider.active.last && !slider.settings.infiniteLoop) { 509 if (slider.settings.mode === 'horizontal') { 510 // get the last child's position 511 lastChild = slider.children.last(); 512 position = lastChild.position(); 513 // set the left position 514 setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.outerWidth())), 'reset', 0); 515 } else if (slider.settings.mode === 'vertical') { 516 // get the last showing index's position 517 lastShowingIndex = slider.children.length - slider.settings.minSlides; 518 position = slider.children.eq(lastShowingIndex).position(); 519 // set the top position 520 setPositionProperty(-position.top, 'reset', 0); 521 } 522 // if not last slide 523 } else { 524 // get the position of the first showing slide 525 position = slider.children.eq(slider.active.index * getMoveBy()).position(); 526 // check for last slide 527 if (slider.active.index === getPagerQty() - 1) { slider.active.last = true; } 528 // set the respective position 529 if (position !== undefined) { 530 if (slider.settings.mode === 'horizontal') { setPositionProperty(-position.left, 'reset', 0); } 531 else if (slider.settings.mode === 'vertical') { setPositionProperty(-position.top, 'reset', 0); } 532 } 533 } 534 }; 535 536 /** 537 * Sets the el's animating property position (which in turn will sometimes animate el). 538 * If using CSS, sets the transform property. If not using CSS, sets the top / left property. 539 * 540 * @param value (int) 541 * - the animating property's value 542 * 543 * @param type (string) 'slide', 'reset', 'ticker' 544 * - the type of instance for which the function is being 545 * 546 * @param duration (int) 547 * - the amount of time (in ms) the transition should occupy 548 * 549 * @param params (array) optional 550 * - an optional parameter containing any variables that need to be passed in 551 */ 552 var setPositionProperty = function(value, type, duration, params) { 553 var animateObj, propValue; 554 // use CSS transform 555 if (slider.usingCSS) { 556 // determine the translate3d value 557 propValue = slider.settings.mode === 'vertical' ? 'translate3d(0, ' + value + 'px, 0)' : 'translate3d(' + value + 'px, 0, 0)'; 558 // add the CSS transition-duration 559 el.css('-' + slider.cssPrefix + '-transition-duration', duration / 1000 + 's'); 560 if (type === 'slide') { 561 // set the property value 562 el.css(slider.animProp, propValue); 563 if (duration !== 0) { 564 // bind a callback method - executes when CSS transition completes 565 el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(e) { 566 //make sure it's the correct one 567 if (!$(e.target).is(el)) { return; } 568 // unbind the callback 569 el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 570 updateAfterSlideTransition(); 571 }); 572 } else { //duration = 0 573 updateAfterSlideTransition(); 574 } 575 } else if (type === 'reset') { 576 el.css(slider.animProp, propValue); 577 } else if (type === 'ticker') { 578 // make the transition use 'linear' 579 el.css('-' + slider.cssPrefix + '-transition-timing-function', 'linear'); 580 el.css(slider.animProp, propValue); 581 if (duration !== 0) { 582 el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(e) { 583 //make sure it's the correct one 584 if (!$(e.target).is(el)) { return; } 585 // unbind the callback 586 el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 587 // reset the position 588 setPositionProperty(params.resetValue, 'reset', 0); 589 // start the loop again 590 tickerLoop(); 591 }); 592 } else { //duration = 0 593 setPositionProperty(params.resetValue, 'reset', 0); 594 tickerLoop(); 595 } 596 } 597 // use JS animate 598 } else { 599 animateObj = {}; 600 animateObj[slider.animProp] = value; 601 if (type === 'slide') { 602 el.animate(animateObj, duration, slider.settings.easing, function() { 603 updateAfterSlideTransition(); 604 }); 605 } else if (type === 'reset') { 606 el.css(slider.animProp, value); 607 } else if (type === 'ticker') { 608 el.animate(animateObj, duration, 'linear', function() { 609 setPositionProperty(params.resetValue, 'reset', 0); 610 // run the recursive loop after animation 611 tickerLoop(); 612 }); 613 } 614 } 615 }; 616 617 /** 618 * Populates the pager with proper amount of pages 619 */ 620 var populatePager = function() { 621 var pagerHtml = '', 622 linkContent = '', 623 pagerQty = getPagerQty(); 624 // loop through each pager item 625 for (var i = 0; i < pagerQty; i++) { 626 linkContent = ''; 627 // if a buildPager function is supplied, use it to get pager link value, else use index + 1 628 if (slider.settings.buildPager && $.isFunction(slider.settings.buildPager) || slider.settings.pagerCustom) { 629 linkContent = slider.settings.buildPager(i); 630 slider.pagerEl.addClass('bx-custom-pager'); 631 } else { 632 linkContent = i + 1; 633 slider.pagerEl.addClass('bx-default-pager'); 634 } 635 // var linkContent = slider.settings.buildPager && $.isFunction(slider.settings.buildPager) ? slider.settings.buildPager(i) : i + 1; 636 // add the markup to the string 637 pagerHtml += '<div class="bx-pager-item"><a href="" data-slide-index="' + i + '" class="bx-pager-link">' + linkContent + '</a></div>'; 638 } 639 // populate the pager element with pager links 640 slider.pagerEl.html(pagerHtml); 641 }; 642 643 /** 644 * Appends the pager to the controls element 645 */ 646 var appendPager = function() { 647 if (!slider.settings.pagerCustom) { 648 // create the pager DOM element 649 slider.pagerEl = $('<div class="bx-pager" />'); 650 // if a pager selector was supplied, populate it with the pager 651 if (slider.settings.pagerSelector) { 652 $(slider.settings.pagerSelector).html(slider.pagerEl); 653 // if no pager selector was supplied, add it after the wrapper 654 } else { 655 slider.controls.el.addClass('bx-has-pager').append(slider.pagerEl); 656 } 657 // populate the pager 658 populatePager(); 659 } else { 660 slider.pagerEl = $(slider.settings.pagerCustom); 661 } 662 // assign the pager click binding 663 slider.pagerEl.on('click touchend', 'a', clickPagerBind); 664 }; 665 666 /** 667 * Appends prev / next controls to the controls element 668 */ 669 var appendControls = function() { 670 slider.controls.next = $('<a class="bx-next" href="">' + slider.settings.nextText + '</a>'); 671 slider.controls.prev = $('<a class="bx-prev" href="">' + slider.settings.prevText + '</a>'); 672 // bind click actions to the controls 673 slider.controls.next.bind('click touchend', clickNextBind); 674 slider.controls.prev.bind('click touchend', clickPrevBind); 675 // if nextSelector was supplied, populate it 676 if (slider.settings.nextSelector) { 677 $(slider.settings.nextSelector).append(slider.controls.next); 678 } 679 // if prevSelector was supplied, populate it 680 if (slider.settings.prevSelector) { 681 $(slider.settings.prevSelector).append(slider.controls.prev); 682 } 683 // if no custom selectors were supplied 684 if (!slider.settings.nextSelector && !slider.settings.prevSelector) { 685 // add the controls to the DOM 686 slider.controls.directionEl = $('<div class="bx-controls-direction" />'); 687 // add the control elements to the directionEl 688 slider.controls.directionEl.append(slider.controls.prev).append(slider.controls.next); 689 // slider.viewport.append(slider.controls.directionEl); 690 slider.controls.el.addClass('bx-has-controls-direction').append(slider.controls.directionEl); 691 } 692 }; 693 694 /** 695 * Appends start / stop auto controls to the controls element 696 */ 697 var appendControlsAuto = function() { 698 slider.controls.start = $('<div class="bx-controls-auto-item"><a class="bx-start" href="">' + slider.settings.startText + '</a></div>'); 699 slider.controls.stop = $('<div class="bx-controls-auto-item"><a class="bx-stop" href="">' + slider.settings.stopText + '</a></div>'); 700 // add the controls to the DOM 701 slider.controls.autoEl = $('<div class="bx-controls-auto" />'); 702 // bind
vendor: 7,154 bytes, lines 702-900
702 click actions to the controls 703 slider.controls.autoEl.on('click', '.bx-start', clickStartBind); 704 slider.controls.autoEl.on('click', '.bx-stop', clickStopBind); 705 // if autoControlsCombine, insert only the "start" control 706 if (slider.settings.autoControlsCombine) { 707 slider.controls.autoEl.append(slider.controls.start); 708 // if autoControlsCombine is false, insert both controls 709 } else { 710 slider.controls.autoEl.append(slider.controls.start).append(slider.controls.stop); 711 } 712 // if auto controls selector was supplied, populate it with the controls 713 if (slider.settings.autoControlsSelector) { 714 $(slider.settings.autoControlsSelector).html(slider.controls.autoEl); 715 // if auto controls selector was not supplied, add it after the wrapper 716 } else { 717 slider.controls.el.addClass('bx-has-controls-auto').append(slider.controls.autoEl); 718 } 719 // update the auto controls 720 updateAutoControls(slider.settings.autoStart ? 'stop' : 'start'); 721 }; 722 723 /** 724 * Appends image captions to the DOM 725 */ 726 var appendCaptions = function() { 727 // cycle through each child 728 slider.children.each(function(index) { 729 // get the image title attribute 730 var title = $(this).find('img:first').attr('title'); 731 // append the caption 732 if (title !== undefined && ('' + title).length) { 733 $(this).append('<div class="bx-caption"><span>' + title + '</span></div>'); 734 } 735 }); 736 }; 737 738 /** 739 * Click next binding 740 * 741 * @param e (event) 742 * - DOM event object 743 */ 744 var clickNextBind = function(e) { 745 e.preventDefault(); 746 if (slider.controls.el.hasClass('disabled')) { return; } 747 // if auto show is running, stop it 748 if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } 749 el.goToNextSlide(); 750 }; 751 752 /** 753 * Click prev binding 754 * 755 * @param e (event) 756 * - DOM event object 757 */ 758 var clickPrevBind = function(e) { 759 e.preventDefault(); 760 if (slider.controls.el.hasClass('disabled')) { return; } 761 // if auto show is running, stop it 762 if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } 763 el.goToPrevSlide(); 764 }; 765 766 /** 767 * Click start binding 768 * 769 * @param e (event) 770 * - DOM event object 771 */ 772 var clickStartBind = function(e) { 773 el.startAuto(); 774 e.preventDefault(); 775 }; 776 777 /** 778 * Click stop binding 779 * 780 * @param e (event) 781 * - DOM event object 782 */ 783 var clickStopBind = function(e) { 784 el.stopAuto(); 785 e.preventDefault(); 786 }; 787 788 /** 789 * Click pager binding 790 * 791 * @param e (event) 792 * - DOM event object 793 */ 794 var clickPagerBind = function(e) { 795 var pagerLink, pagerIndex; 796 e.preventDefault(); 797 if (slider.controls.el.hasClass('disabled')) { 798 return; 799 } 800 // if auto show is running, stop it 801 if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } 802 pagerLink = $(e.currentTarget); 803 if (pagerLink.attr('data-slide-index') !== undefined) { 804 pagerIndex = parseInt(pagerLink.attr('data-slide-index')); 805 // if clicked pager link is not active, continue with the goToSlide call 806 if (pagerIndex !== slider.active.index) { el.goToSlide(pagerIndex); } 807 } 808 }; 809 810 /** 811 * Updates the pager links with an active class 812 * 813 * @param slideIndex (int) 814 * - index of slide to make active 815 */ 816 var updatePagerActive = function(slideIndex) { 817 // if "short" pager type 818 var len = slider.children.length; // nb of children 819 if (slider.settings.pagerType === 'short') { 820 if (slider.settings.maxSlides > 1) { 821 len = Math.ceil(slider.children.length / slider.settings.maxSlides); 822 } 823 slider.pagerEl.html((slideIndex + 1) + slider.settings.pagerShortSeparator + len); 824 return; 825 } 826 // remove all pager active classes 827 slider.pagerEl.find('a').removeClass('active'); 828 // apply the active class for all pagers 829 slider.pagerEl.each(function(i, el) { $(el).find('a').eq(slideIndex).addClass('active'); }); 830 }; 831 832 /** 833 * Performs needed actions after a slide transition 834 */ 835 var updateAfterSlideTransition = function() { 836 // if infinite loop is true 837 if (slider.settings.infiniteLoop) { 838 var position = ''; 839 // first slide 840 if (slider.active.index === 0) { 841 // set the new position 842 position = slider.children.eq(0).position(); 843 // carousel, last slide 844 } else if (slider.active.index === getPagerQty() - 1 && slider.carousel) { 845 position = slider.children.eq((getPagerQty() - 1) * getMoveBy()).position(); 846 // last slide 847 } else if (slider.active.index === slider.children.length - 1) { 848 position = slider.children.eq(slider.children.length - 1).position(); 849 } 850 if (position) { 851 if (slider.settings.mode === 'horizontal') { setPositionProperty(-position.left, 'reset', 0); } 852 else if (slider.settings.mode === 'vertical') { setPositionProperty(-position.top, 'reset', 0); } 853 } 854 } 855 // declare that the transition is complete 856 slider.working = false; 857 // onSlideAfter callback 858 slider.settings.onSlideAfter.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 859 }; 860 861 /** 862 * Updates the auto controls state (either active, or combined switch) 863 * 864 * @param state (string) "start", "stop" 865 * - the new state of the auto show 866 */ 867 var updateAutoControls = function(state) { 868 // if autoControlsCombine is true, replace the current control with the new state 869 if (slider.settings.autoControlsCombine) { 870 slider.controls.autoEl.html(slider.controls[state]); 871 // if autoControlsCombine is false, apply the "active" class to the appropriate control 872 } else { 873 slider.controls.autoEl.find('a').removeClass('active'); 874 slider.controls.autoEl.find('a:not(.bx-' + state + ')').addClass('active'); 875 } 876 }; 877 878 /** 879 * Updates the direction controls (checks if either should be hidden) 880 */ 881 var updateDirectionControls = function() { 882 if (getPagerQty() === 1) { 883 slider.controls.prev.addClass('disabled'); 884 slider.controls.next.addClass('disabled'); 885 } else if (!slider.settings.infiniteLoop && slider.settings.hideControlOnEnd) { 886 // if first slide 887 if (slider.active.index === 0) { 888 slider.controls.prev.addClass('disabled'); 889 slider.controls.next.removeClass('disabled'); 890 // if last slide 891 } else if (slider.active.index === getPagerQty() - 1) { 892 slider.controls.next.addClass('disabled'); 893 slider.controls.prev.removeClass('disabled'); 894 // if any slide in the middle 895 } else { 896 slider.controls.prev.removeClass('disabled'); 897 slider.controls.next.removeClass('disabled'); 898 } 899 } 900 };
901 902 /** 903 * Initializes the auto process 904 */ 905 var initAuto = function() { 906 // if autoDelay was supplied, launch the auto show using a setTimeout() call 907 if (slider.settings.autoDelay > 0) { 908 var timeout = setTimeout(el.startAuto, slider.settings.autoDelay); 909 // if autoDelay was not supplied, start the auto show normally 910 } else { 911 el.startAuto(); 912 913 //add focus and blur events to ensure its running if timeout gets paused 914 $(window).focus(function() { 915 el.startAuto(); 916 }).blur(function() { 917 el.stopAuto(); 918 }
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918); 919 } 920 // if autoHover is requested 921 if (slider.settings.autoHover) { 922 // on el hover 923 el.hover(function() { 924 // if the auto show is currently playing (has an active interval) 925 if (slider.interval) { 926 // stop the auto show and pass true argument which will prevent control update 927 el.stopAuto(true); 928 // create a new autoPaused value which will be used by the relative "mouseout" event 929 slider.autoPaused = true; 930 } 931 }, function() { 932 // if the autoPaused value was created be the prior "mouseover" event 933 if (slider.autoPaused) { 934 // start the auto show and pass true argument which will prevent control update 935 el.startAuto(true); 936 // reset the autoPaused value 937 slider.autoPaused = null; 938 } 939 }); 940 } 941 }; 942 943 /** 944 * Initializes the ticker process 945 */ 946 var initTicker = function() { 947 var startPosition = 0, 948 position, transform, value, idx, ratio, property, newSpeed, totalDimens; 949 // if autoDirection is "next", append a clone of the entire slider 950 if (slider.settings.autoDirection === 'next') { 951 el.append(slider.children.clone().addClass('bx-clone')); 952 // if autoDirection is "prev", prepend a clone of the entire slider, and set the left position 953 } else { 954 el.prepend(slider.children.clone().addClass('bx-clone')); 955 position = slider.children.first().position(); 956 startPosition = slider.settings.mode === 'horizontal' ? -position.left : -position.top; 957 } 958 setPositionProperty(startPosition, 'reset', 0); 959 // do not allow controls in ticker mode 960 slider.settings.pager = false; 961 slider.settings.controls = false; 962 slider.settings.autoControls = false; 963 // if autoHover is requested 964 if (slider.settings.tickerHover) { 965 if (slider.usingCSS) { 966 idx = slider.settings.mode === 'horizontal' ? 4 : 5; 967 slider.viewport.hover(function() { 968 transform = el.css('-' + slider.cssPrefix + '-transform'); 969 value = parseFloat(transform.split(',')[idx]); 970 setPositionProperty(value, 'reset', 0); 971 }, function() { 972 totalDimens = 0; 973 slider.children.each(function(index) { 974 totalDimens += slider.settings.mode === 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true); 975 }); 976 // calculate the speed ratio (used to determine the new speed to finish the paused animation) 977 ratio = slider.settings.speed / totalDimens; 978 // determine which property to use 979 property = slider.settings.mode === 'horizontal' ? 'left' : 'top'; 980 // calculate the new speed 981 newSpeed = ratio * (totalDimens - (Math.abs(parseInt(value)))); 982 tickerLoop(newSpeed); 983 }); 984 } else { 985 // on el hover 986 slider.viewport.hover(function() { 987 el.stop(); 988 }, function() { 989 // calculate the total width of children (used to calculate the speed ratio) 990 totalDimens = 0; 991 slider.children.each(function(index) { 992 totalDimens += slider.settings.mode === 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true); 993 }); 994 // calculate the speed ratio (used to determine the new speed to finish the paused animation) 995 ratio = slider.settings.speed / totalDimens; 996 // determine which property to use 997 property = slider.settings.mode === 'horizontal' ? 'left' : 'top'; 998 // calculate the new speed 999 newSpeed = ratio * (totalDimens - (Math.abs(parseInt(el.css(property))))); 1000 tickerLoop(newSpeed); 1001 }); 1002 } 1003 } 1004 // start the ticker loop 1005 tickerLoop(); 1006 }; 1007 1008 /** 1009 * Runs a continuous loop, news ticker-style 1010 */ 1011 var tickerLoop = function(resumeSpeed) { 1012 var speed = resumeSpeed ? resumeSpeed : slider.settings.speed, 1013 position = {left: 0, top: 0}, 1014 reset = {left: 0, top: 0}, 1015 animateProperty, resetValue, params; 1016 1017 // if "next" animate left position to last child, then reset left to 0 1018 if (slider.settings.autoDirection === 'next') { 1019 position = el.find('.bx-clone').first().position(); 1020 // if "prev" animate left position to 0, then reset left to first non-clone child 1021 } else { 1022 reset = slider.children.first().position(); 1023 } 1024 animateProperty = slider.settings.mode === 'horizontal' ? -position.left : -position.top; 1025 resetValue = slider.settings.mode === 'horizontal' ? -reset.left : -reset.top; 1026 params = {resetValue: resetValue}; 1027 setPositionProperty(animateProperty, 'ticker', speed, params); 1028 }; 1029 1030 /** 1031 * Check if el is on screen 1032 */ 1033 var isOnScreen = function(el) { 1034 var win = $(window), 1035 viewport = { 1036 top: win.scrollTop(), 1037 left: win.scrollLeft() 1038 }, 1039 bounds = el.offset(); 1040 1041 viewport.right = viewport.left + win.width(); 1042 viewport.bottom = viewport.top + win.height(); 1043 bounds.right = bounds.left + el.outerWidth(); 1044 bounds.bottom = bounds.top + el.outerHeight(); 1045 1046 return (!(viewport.right < bounds.left || viewport.left > bounds.right || viewport.bottom < bounds.top || viewport.top > bounds.bottom)); 1047 }; 1048 1049 /** 1050 * Initializes keyboard events 1051 */ 1052 var keyPress = function(e) { 1053 var activeElementTag = document.activeElement.tagName.toLowerCase(), 1054 tagFilters = 'input|textarea', 1055 p = new RegExp(activeElementTag,['i']), 1056 result = p.exec(tagFilters); 1057 1058 if (result == null && isOnScreen(el)) { 1059 if (e.keyCode === 39) { 1060 clickNextBind(e); 1061 return false; 1062 } else if (e.keyCode === 37) { 1063 clickPrevBind(e); 1064 return false; 1065 } 1066 } 1067 }; 1068 1069 /** 1070 * Initializes touch events 1071 */ 1072 var initTouch = function() { 1073 // initialize object to contain all touch values 1074 slider.touch = { 1075 start: {x: 0, y: 0}, 1076 end: {x: 0, y: 0} 1077 }; 1078 slider.viewport.
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1078bind('touchstart MSPointerDown pointerdown', onTouchStart); 1079 1080 //for browsers that have implemented pointer events and fire a click after 1081 //every pointerup regardless of whether pointerup is on same screen location as pointerdown or not 1082 slider.viewport.on('click', '.bxslider a', function(e) { 1083 if (slider.viewport.hasClass('click-disabled')) { 1084 e.preventDefault(); 1085 slider.viewport.removeClass('click-disabled'); 1086 } 1087 }); 1088 }; 1089 1090 /** 1091 * Event handler for "touchstart" 1092 * 1093 * @param e (event) 1094 * - DOM event object 1095 */ 1096 var onTouchStart = function(e) { 1097 //disable slider controls while user is interacting with slides to avoid slider freeze that happens on touch devices when a slide swipe happens immediately after interacting with slider controls 1098 slider.controls.el.addClass('disabled'); 1099 1100 if (slider.working) { 1101 e.preventDefault(); 1102 slider.controls.el.removeClass('disabled'); 1103 } else { 1104 // record the original position when touch starts 1105 slider.touch.originalPos = el.position(); 1106 var orig = e.originalEvent, 1107 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig]; 1108 var chromePointerEvents = typeof PointerEvent === 'function'; 1109 if (chromePointerEvents) { 1110 if(orig.pointerId === undefined){ 1111 return; 1112 } 1113 } 1114 // record the starting touch x, y coordinates 1115 slider.touch.start.x = touchPoints[0].pageX; 1116 slider.touch.start.y = touchPoints[0].pageY; 1117 1118 if (slider.viewport.get(0).setPointerCapture) { 1119 slider.pointerId = orig.pointerId; 1120 slider.viewport.get(0).setPointerCapture(slider.pointerId); 1121 } 1122 // bind a "touchmove" event to the viewport 1123 slider.viewport.bind('touchmove MSPointerMove pointermove', onTouchMove); 1124 // bind a "touchend" event to the viewport 1125 slider.viewport.bind('touchend MSPointerUp pointerup', onTouchEnd); 1126 slider.viewport.bind('MSPointerCancel pointercancel', onPointerCancel); 1127 } 1128 }; 1129 1130 /** 1131 * Cancel Pointer for Windows Phone 1132 * 1133 * @param e (event) 1134 * - DOM event object 1135 */ 1136 var onPointerCancel = function(e) { 1137 /* onPointerCancel handler is needed to deal with situations when a touchend 1138 doesn't fire after a touchstart (this happens on windows phones only) */ 1139 setPositionProperty(slider.touch.originalPos.left, 'reset', 0); 1140 1141 //remove handlers 1142 slider.controls.el.removeClass('disabled'); 1143 slider.viewport.unbind('MSPointerCancel pointercancel', onPointerCancel); 1144 slider.viewport.unbind('touchmove MSPointerMove pointermove', onTouchMove); 1145 slider.viewport.unbind('touchend MSPointerUp pointerup', onTouchEnd); 1146 if (slider.viewport.get(0).releasePointerCapture) { 1147 slider.viewport.get(0).releasePointerCapture(slider.pointerId); 1148 } 1149 }; 1150 1151 /** 1152 * Event handler for "touchmove" 1153 * 1154 * @param e (event) 1155 * - DOM event object 1156 */ 1157 var onTouchMove = function(e) { 1158 var orig = e.originalEvent, 1159 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig], 1160 // if scrolling on y axis, do not prevent default 1161 xMovement = Math.abs(touchPoints[0].pageX - slider.touch.start.x), 1162 yMovement = Math.abs(touchPoints[0].pageY - slider.touch.start.y), 1163 value = 0, 1164 change = 0; 1165 1166 // x axis swipe 1167 if ((xMovement * 3) > yMovement && slider.settings.preventDefaultSwipeX) { 1168 e.preventDefault(); 1169 // y axis swipe 1170 } else if ((yMovement * 3) > xMovement && slider.settings.preventDefaultSwipeY) { 1171 e.preventDefault(); 1172 } 1173 if (slider.settings.mode !== 'fade' && slider.settings.oneToOneTouch) { 1174 // if horizontal, drag along x axis 1175 if (slider.settings.mode === 'horizontal') { 1176 change = touchPoints[0].pageX - slider.touch.start.x; 1177 value = slider.touch.originalPos.left + change; 1178 // if vertical, drag along y axis 1179 } else { 1180 change = touchPoints[0].pageY - slider.touch.start.y; 1181 value = slider.touch.originalPos.top + change; 1182 } 1183 setPositionProperty(value, 'reset', 0); 1184 } 1185 }; 1186 1187 /** 1188 * Event handler for "touchend" 1189 * 1190 * @param e (event) 1191 * - DOM event object 1192 */ 1193 var onTouchEnd = function(e) { 1194 slider.viewport.unbind('touchmove MSPointerMove pointermove', onTouchMove); 1195 //enable slider controls as soon as user stops interacing with slides 1196 slider.controls.el.removeClass('disabled'); 1197 var orig = e.originalEvent, 1198 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig], 1199 value = 0, 1200 distance = 0; 1201 // record end x, y positions 1202 slider.touch.end.x = touchPoints[0].pageX; 1203 slider.touch.end.y = touchPoints[0].pageY; 1204 // if fade mode, check if absolute x distance clears the threshold 1205 if (slider.settings.mode === 'fade') { 1206 distance = Math.abs(slider.touch.start.x - slider.touch.end.x); 1207 if (distance >= slider.settings.swipeThreshold) { 1208 if (slider.touch.start.x > slider.touch.end.x) { 1209 el.goToNextSlide(); 1210 } else { 1211 el.goToPrevSlide(); 1212 } 1213 el.stopAuto(); 1214 } 1215 // not fade mode 1216 } else { 1217 // calculate distance and el's animate property 1218 if (slider.settings.mode === 'horizontal') { 1219 distance = slider.touch.end.x - slider.touch.start.x; 1220 value = slider.touch.originalPos.left; 1221 } else { 1222 distance = slider.touch.end.y - slider.touch.start.y; 1223 value = slider.touch.originalPos.top; 1224 } 1225 // if not infinite loop and first / last slide, do not attempt a slide transition 1226 if (!slider.settings.infiniteLoop && ((slider.active.index === 0 && distance > 0) || (slider.active.last && distance < 0))) { 1227 setPositionProperty(value, 'reset', 200); 1228 } else { 1229 // check if distance clears threshold 1230 if (Math.abs(distance) >= slider.settings.swipeThreshold) { 1231 if (distance < 0) { 1232 el.goToNextSlide(); 1233 } else { 1234 el.goToPrevSlide(); 1235 } 1236 el.stopAuto(); 1237 } else { 1238 // el.animate(property, 200); 1239 setPositionProperty(value, 'reset', 200); 1240 } 1241 } 1242 } 1243 slider.viewport.unbind('touchend MSPointerUp pointerup', onTouchEnd); 1244 if (slider.viewport.get(0).releasePointerCapture) { 1245 slider.viewport.get(0).releasePointerCapture(slider.pointerId
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1245); 1246 } 1247 }; 1248 1249 /** 1250 * Window resize event callback 1251 */ 1252 var resizeWindow = function(e) { 1253 // don't do anything if slider isn't initialized. 1254 if (!slider.initialized) { return; } 1255 // Delay if slider working. 1256 if (slider.working) { 1257 window.setTimeout(resizeWindow, 10); 1258 } else { 1259 // get the new window dimens (again, thank you IE) 1260 var windowWidthNew = $(window).width(), 1261 windowHeightNew = $(window).height(); 1262 // make sure that it is a true window resize 1263 // *we must check this because our dinosaur friend IE fires a window resize event when certain DOM elements 1264 // are resized. Can you just die already?* 1265 if (windowWidth !== windowWidthNew || windowHeight !== windowHeightNew) { 1266 // set the new window dimens 1267 windowWidth = windowWidthNew; 1268 windowHeight = windowHeightNew; 1269 // update all dynamic elements 1270 el.redrawSlider(); 1271 // Call user resize handler 1272 slider.settings.onSliderResize.call(el, slider.active.index); 1273 } 1274 } 1275 }; 1276 1277 /** 1278 * Adds an aria-hidden=true attribute to each element 1279 * 1280 * @param startVisibleIndex (int) 1281 * - the first visible element's index 1282 */ 1283 var applyAriaHiddenAttributes = function(startVisibleIndex) { 1284 var numberOfSlidesShowing = getNumberSlidesShowing(); 1285 // only apply attributes if the setting is enabled and not in ticker mode 1286 if (slider.settings.ariaHidden && !slider.settings.ticker) { 1287 // add aria-hidden=true to all elements 1288 slider.children.attr('aria-hidden', 'true'); 1289 // get the visible elements and change to aria-hidden=false 1290 slider.children.slice(startVisibleIndex, startVisibleIndex + numberOfSlidesShowing).attr('aria-hidden', 'false'); 1291 } 1292 }; 1293 1294 /** 1295 * Returns index according to present page range 1296 * 1297 * @param slideOndex (int) 1298 * - the desired slide index 1299 */ 1300 var setSlideIndex = function(slideIndex) { 1301 if (slideIndex < 0) { 1302 if (slider.settings.infiniteLoop) { 1303 return getPagerQty() - 1; 1304 }else { 1305 //we don't go to undefined slides 1306 return slider.active.index; 1307 } 1308 // if slideIndex is greater than children length, set active index to 0 (this happens during infinite loop) 1309 } else if (slideIndex >= getPagerQty()) { 1310 if (slider.settings.infiniteLoop) { 1311 return 0; 1312 } else { 1313 //we don't move to undefined pages 1314 return slider.active.index; 1315 } 1316 // set active index to requested slide 1317 } else { 1318 return slideIndex; 1319 } 1320 }; 1321 1322 /** 1323 * =================================================================================== 1324 * = PUBLIC FUNCTIONS 1325 * =================================================================================== 1326 */ 1327 1328 /** 1329 * Performs slide transition to the specified slide 1330 * 1331 * @param slideIndex (int) 1332 * - the destination slide's index (zero-based) 1333 * 1334 * @param direction (string) 1335 * - INTERNAL USE ONLY - the direction of travel ("prev" / "next") 1336 */ 1337 el.goToSlide = function(slideIndex, direction) { 1338 // onSlideBefore, onSlideNext, onSlidePrev callbacks 1339 // Allow transition canceling based on returned value 1340 var performTransition = true, 1341 moveBy = 0, 1342 position = {left: 0, top: 0}, 1343 lastChild = null, 1344 lastShowingIndex, eq, value, requestEl; 1345 // store the old index 1346 slider.oldIndex = slider.active.index; 1347 //set new index 1348 slider.active.index = setSlideIndex(slideIndex); 1349 1350 // if plugin is currently in motion, ignore request 1351 if (slider.working || slider.active.index === slider.oldIndex) { return; } 1352 // declare that plugin is in motion 1353 slider.working = true; 1354 1355 performTransition = slider.settings.onSlideBefore.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1356 1357 // If transitions canceled, reset and return 1358 if (typeof (performTransition) !== 'undefined' && !performTransition) { 1359 slider.active.index = slider.oldIndex; // restore old index 1360 slider.working = false; // is not in motion 1361 return; 1362 } 1363 1364 if (direction === 'next') { 1365 // Prevent canceling in future functions or lack there-of from negating previous commands to cancel 1366 if (!slider.settings.onSlideNext.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) { 1367 performTransition = false; 1368 } 1369 } else if (direction === 'prev') { 1370 // Prevent canceling in future functions or lack there-of from negating previous commands to cancel 1371 if (!slider.settings.onSlidePrev.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) { 1372 performTransition = false; 1373 } 1374 } 1375 1376 // check if last slide 1377 slider.active.last = slider.active.index >= getPagerQty() - 1; 1378 // update the pager with active class 1379 if (slider.settings.pager || slider.settings.pagerCustom) { updatePagerActive(slider.active.index); } 1380 // // check for direction control update 1381 if (slider.settings.controls) { updateDirectionControls(); } 1382 // if slider is set to mode: "fade" 1383 if (slider.settings.mode === 'fade') { 1384 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1385 if (slider.settings.adaptiveHeight && slider.viewport.height() !== getViewportHeight()) { 1386 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1387 } 1388 // fade out the visible child and reset its z-index value 1389 slider.children.filter(':visible').fadeOut(slider.settings.speed).css({zIndex: 0}); 1390 // fade in the newly requested slide 1391 slider.children.eq(slider.active.index).css('zIndex', slider.settings.slideZIndex + 1).fadeIn(slider.settings.speed, function() { 1392 $(this).css('zIndex', slider.settings.slideZIndex); 1393 updateAfterSlideTransition(); 1394 }); 1395 // slider mode is not "fade" 1396 } else { 1397 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1398 if (slider.settings.adaptiveHeight && slider.viewport.height() !== getViewportHeight()) { 1399 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1400 } 1401 // if carousel and not infinite loop 1402 if (!slider.settings.infiniteLoop && slider.carousel && slider.active.last) { 1403 if (slider.settings.mode === 'horizontal') { 1404 // get the last child position 1405 lastChild = slider.children.eq(slider.children.length - 1); 1406 position = lastChild.position(); 1407 // calculate the position of the last slide 1408 moveBy = slider.viewport.width() - lastChild.outerWidth(); 1409 } else { 1410 // get last showing index position 1411 lastShowingIndex = slider.children.length - slider.settings.minSlides; 1412 position = slider.children.eq(lastShowingIndex).position(); 1413 } 1414 // horizontal carousel, going previous while on first slide (infiniteLoop mode) 1415 } else if (slider.carousel && slider.active.last && direction === 'prev') { 1416 // get the last child position 1417 eq = slider.settings.moveSlides === 1 ? slider.settings.maxSlides - getMoveBy() : ((getPagerQty() - 1) * getMoveBy()) - (slider.children.length - slider.settings.maxSlides); 1418 lastChild = el.children('.bx-clone').eq(eq); 1419 position = lastChild.position(); 1420 // if infinite loop and "Next" is clicked on the last slide 1421 } else if (direction === 'next' && slider.active.index === 0) { 1422 // get the last clone position 1423 position = el.find('> .bx-clone').eq(slider.settings.maxSlides).position(); 1424 slider.active.last = false; 1425 // normal non-zero requests 1426 } else if (slideIndex >= 0) { 1427 //parseInt is applied to allow floats for slides/page 1428 requestEl = slideIndex * parseInt(getMoveBy()); 1429 position = slider.children.eq(requestEl).position(); 1430 } 1431 1432 /* If the position doesn't exist 1433 * (e.g. if you destroy the slider on a next click), 1434 * it doesn't throw an error. 1435 */ 1436 if (typeof (position) !== 'undefined') { 1437 value = slider.settings.mode === 'horizontal' ? -(position.left - moveBy) : -position.top; 1438 // plugin values to be animated 1439 setPositionProperty(value, 'slide', slider.settings.speed); 1440 }
vendor: 6,087 bytes, lines 1440-1617
1440 else { 1441 slider.working = false; 1442 } 1443 } 1444 if (slider.settings.ariaHidden) { applyAriaHiddenAttributes(slider.active.index * getMoveBy()); } 1445 }; 1446 1447 /** 1448 * Transitions to the next slide in the show 1449 */ 1450 el.goToNextSlide = function() { 1451 // if infiniteLoop is false and last page is showing, disregard call 1452 if (!slider.settings.infiniteLoop && slider.active.last) { return; } 1453 var pagerIndex = parseInt(slider.active.index) + 1; 1454 el.goToSlide(pagerIndex, 'next'); 1455 }; 1456 1457 /** 1458 * Transitions to the prev slide in the show 1459 */ 1460 el.goToPrevSlide = function() { 1461 // if infiniteLoop is false and last page is showing, disregard call 1462 if (!slider.settings.infiniteLoop && slider.active.index === 0) { return; } 1463 var pagerIndex = parseInt(slider.active.index) - 1; 1464 el.goToSlide(pagerIndex, 'prev'); 1465 }; 1466 1467 /** 1468 * Starts the auto show 1469 * 1470 * @param preventControlUpdate (boolean) 1471 * - if true, auto controls state will not be updated 1472 */ 1473 el.startAuto = function(preventControlUpdate) { 1474 // if an interval already exists, disregard call 1475 if (slider.interval) { return; } 1476 // create an interval 1477 slider.interval = setInterval(function() { 1478 if (slider.settings.autoDirection === 'next') { 1479 el.goToNextSlide(); 1480 } else { 1481 el.goToPrevSlide(); 1482 } 1483 }, slider.settings.pause); 1484 // if auto controls are displayed and preventControlUpdate is not true 1485 if (slider.settings.autoControls && preventControlUpdate !== true) { updateAutoControls('stop'); } 1486 }; 1487 1488 /** 1489 * Stops the auto show 1490 * 1491 * @param preventControlUpdate (boolean) 1492 * - if true, auto controls state will not be updated 1493 */ 1494 el.stopAuto = function(preventControlUpdate) { 1495 // if no interval exists, disregard call 1496 if (!slider.interval) { return; } 1497 // clear the interval 1498 clearInterval(slider.interval); 1499 slider.interval = null; 1500 // if auto controls are displayed and preventControlUpdate is not true 1501 if (slider.settings.autoControls && preventControlUpdate !== true) { updateAutoControls('start'); } 1502 }; 1503 1504 /** 1505 * Returns current slide index (zero-based) 1506 */ 1507 el.getCurrentSlide = function() { 1508 return slider.active.index; 1509 }; 1510 1511 /** 1512 * Returns current slide element 1513 */ 1514 el.getCurrentSlideElement = function() { 1515 return slider.children.eq(slider.active.index); 1516 }; 1517 1518 /** 1519 * Returns a slide element 1520 * @param index (int) 1521 * - The index (zero-based) of the element you want returned. 1522 */ 1523 el.getSlideElement = function(index) { 1524 return slider.children.eq(index); 1525 }; 1526 1527 /** 1528 * Returns number of slides in show 1529 */ 1530 el.getSlideCount = function() { 1531 return slider.children.length; 1532 }; 1533 1534 /** 1535 * Return slider.working variable 1536 */ 1537 el.isWorking = function() { 1538 return slider.working; 1539 }; 1540 1541 /** 1542 * Update all dynamic slider elements 1543 */ 1544 el.redrawSlider = function() { 1545 // resize all children in ratio to new screen size 1546 slider.children.add(el.find('.bx-clone')).outerWidth(getSlideWidth()); 1547 // adjust the height 1548 slider.viewport.css('height', getViewportHeight()); 1549 // update the slide position 1550 if (!slider.settings.ticker) { setSlidePosition(); } 1551 // if active.last was true before the screen resize, we want 1552 // to keep it last no matter what screen size we end on 1553 if (slider.active.last) { slider.active.index = getPagerQty() - 1; } 1554 // if the active index (page) no longer exists due to the resize, simply set the index as last 1555 if (slider.active.index >= getPagerQty()) { slider.active.last = true; } 1556 // if a pager is being displayed and a custom pager is not being used, update it 1557 if (slider.settings.pager && !slider.settings.pagerCustom) { 1558 populatePager(); 1559 updatePagerActive(slider.active.index); 1560 } 1561 if (slider.settings.ariaHidden) { applyAriaHiddenAttributes(slider.active.index * getMoveBy()); } 1562 }; 1563 1564 /** 1565 * Destroy the current instance of the slider (revert everything back to original state) 1566 */ 1567 el.destroySlider = function() { 1568 // don't do anything if slider has already been destroyed 1569 if (!slider.initialized) { return; } 1570 slider.initialized = false; 1571 $('.bx-clone', this).remove(); 1572 slider.children.each(function() { 1573 if ($(this).data('origStyle') !== undefined) { 1574 $(this).attr('style', $(this).data('origStyle')); 1575 } else { 1576 $(this).removeAttr('style'); 1577 } 1578 }); 1579 if ($(this).data('origStyle') !== undefined) { 1580 this.attr('style', $(this).data('origStyle')); 1581 } else { 1582 $(this).removeAttr('style'); 1583 } 1584 $(this).unwrap().unwrap(); 1585 if (slider.controls.el) { slider.controls.el.remove(); } 1586 if (slider.controls.next) { slider.controls.next.remove(); } 1587 if (slider.controls.prev) { slider.controls.prev.remove(); } 1588 if (slider.pagerEl && slider.settings.controls && !slider.settings.pagerCustom) { slider.pagerEl.remove(); } 1589 $('.bx-caption', this).remove(); 1590 if (slider.controls.autoEl) { slider.controls.autoEl.remove(); } 1591 clearInterval(slider.interval); 1592 if (slider.settings.responsive) { $(window).unbind('resize', resizeWindow); } 1593 if (slider.settings.keyboardEnabled) { $(document).unbind('keydown', keyPress); } 1594 //remove self reference in data 1595 $(this).removeData('bxSlider'); 1596 }; 1597 1598 /** 1599 * Reload the slider (revert all DOM changes, and re-initialize) 1600 */ 1601 el.reloadSlider = function(settings) { 1602 if (settings !== undefined) { options = settings; } 1603 el.destroySlider(); 1604 init(); 1605 //store reference to self in order to access public functions later 1606 $(el).data('bxSlider', this); 1607 }; 1608 1609 init(); 1610 1611 $(el).data('bxSlider', this); 1612 1613 // returns the current jQuery object 1614 return this; 1615 }; 1616 1617})(jQuery);
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.