vendor: 77,338 bytes, lines 1-1724
1/** 2 * bxSlider v4.2.1d 3 * Copyright 2013-2017 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 () { 87 return true; 88 }, 89 onSlideBefore: function () { 90 return true; 91 }, 92 onSlideAfter: function () { 93 return true; 94 }, 95 onSlideNext: function () { 96 return true; 97 }, 98 onSlidePrev: function () { 99 return true; 100 }, 101 onSliderResize: function () { 102 return true; 103 }, 104 onAutoChange: function () { 105 return true; 106 } //calls when auto slides starts and stops 107 }; 108 109 $.fn.bxSlider = function (options) { 110 111 if (this.length === 0) { 112 return this; 113 } 114 115 // support multiple elements 116 if (this.length > 1) { 117 this.each(function () { 118 $(this).bxSlider(options); 119 }); 120 return this; 121 } 122 123 // create a namespace to be used throughout the plugin 124 var slider = {}, 125 // set a reference to our slider element 126 el = this, 127 // get the original window dimens (thanks a lot IE) 128 windowWidth = $(window).width(), 129 windowHeight = $(window).height(); 130 131 // Return if slider is already initialized 132 if ($(el).data('bxSlider')) { 133 return; 134 } 135 136 /** 137 * =================================================================================== 138 * = PRIVATE FUNCTIONS 139 * =================================================================================== 140 */ 141 142 /** 143 * Initializes namespace settings to be used throughout plugin 144 */ 145 var init = function () { 146 // Return if slider is already initialized 147 if ($(el).data('bxSlider')) { 148 return; 149 } 150 // merge user-supplied options with the defaults 151 slider.settings = $.extend({}, defaults, options); 152 // parse slideWidth setting 153 slider.settings.slideWidth = parseInt(slider.settings.slideWidth); 154 // store the original children 155 slider.children = el.children(slider.settings.slideSelector); 156 // check if actual number of slides is less than minSlides / maxSlides 157 if (slider.children.length < slider.settings.minSlides) { 158 slider.settings.minSlides = slider.children.length; 159 } 160 if (slider.children.length < slider.settings.maxSlides) { 161 slider.settings.maxSlides = slider.children.length; 162 } 163 // if random start, set the startSlide setting to random number 164 if (slider.settings.randomStart) { 165 slider.settings.startSlide = Math.floor(Math.random() * slider.children.length); 166 } 167 // store active slide information 168 slider.active = {index: slider.settings.startSlide}; 169 // store if the slider is in carousel mode (displaying / moving multiple slides) 170 slider.carousel = slider.settings.minSlides > 1 || slider.settings.maxSlides > 1; 171 // if carousel, force preloadImages = 'all' 172 if (slider.carousel) { 173 slider.settings.preloadImages = 'all'; 174 } 175 // calculate the min / max width thresholds based on min / max number of slides 176 // used to setup and update carousel slides dimensions 177 slider.minThreshold = (slider.settings.minSlides * slider.settings.slideWidth) + ((slider.settings.minSlides - 1) * slider.settings.slideMargin); 178 slider.maxThreshold = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 179 // store the current state of the slider (if currently animating, working is true) 180 slider.working = false; 181 // initialize the controls object 182 slider.controls = {}; 183 // initialize an auto interval 184 slider.interval = null; 185 // determine which property to use for transitions 186 slider.animProp = slider.settings.mode === 'vertical' ? 'top' : 'left'; 187 // determine if hardware acceleration can be used 188 slider.usingCSS = slider.settings.useCSS && slider.settings.mode !== 'fade' && (function () { 189 // create our test div element 190 var div = document.createElement('div'), 191 // css transition properties 192 props = ['WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective']; 193 // test for each property 194 for (var i = 0; i < props.length; i++) { 195 if (div.style[props[i]] !== undefined) { 196 slider.cssPrefix = props[i].replace('Perspective', '').toLowerCase(); 197 slider.animProp = '-' + slider.cssPrefix + '-transform'; 198 return true; 199 } 200 } 201 return false; 202 }()); 203 // if vertical mode always make maxSlides and minSlides equal 204 if (slider.settings.mode === 'vertical') { 205 slider.settings.maxSlides = slider.settings.minSlides; 206 } 207 // save original style data 208 el.data('origStyle', el.attr('style')); 209 el.children(slider.settings.slideSelector).each(function () { 210 $(this).data('origStyle', $(this).attr('style')); 211 }); 212 213 // perform all DOM / CSS modifications 214 setup(); 215 }; 216 217 /** 218 * Performs all DOM and CSS modifications 219 */ 220 var setup = function () { 221 var preloadSelector = slider.children.eq(slider.settings.startSlide); // set the default preload selector (visible) 222 223 // wrap el in a wrapper 224 el.wrap('<div class="' + slider.settings.wrapperClass + '"><div class="bx-viewport"></div></div>'); 225 // store a namespace reference to .bx-viewport 226 slider.viewport = el.parent(); 227 228 // add aria-live if the setting is enabled and ticker mode is disabled 229 if (slider.settings.ariaLive && !slider.settings.ticker) { 230 slider.viewport.attr('aria-live', 'polite'); 231 } 232 // add a loading div to display while images are loading 233 slider.loader = $('<div class="bx-loading" />'); 234 slider.viewport.prepend(slider.loader); 235 // set el to a massive width, to hold any needed slides 236 // also strip any margin and padding from el 237 el.css({ 238 width: slider.settings.mode === 'horizontal' ? (slider.children.length * 1000 + 215) + '%' : 'auto', 239 position: 'relative' 240 }); 241 // if using CSS, add the easing property 242 if (slider.usingCSS && slider.settings.easing) { 243 el.css('-' + slider.cssPrefix + '-transition-timing-function', slider.settings.easing); 244 // if not using CSS and no easing value was supplied, use the default JS animation easing (swing) 245 } else if (!slider.settings.easing) { 246 slider.settings.easing = 'swing'; 247 } 248 // make modifications to the viewport (.bx-viewport) 249 slider.viewport.css({ 250 width: '100%', 251 overflow: 'hidden', 252 position: 'relative' 253 }); 254 slider.viewport.parent().css({ 255 maxWidth: getViewportMaxWidth() 256 }); 257 // apply css to all slider children 258 slider.children.css({ 259 // the float attribute is a reserved word in compressors like YUI compressor and need to be quoted #48 260 'float': slider.settings.mode === 'horizontal' ? 'left' : 'none', 261 listStyle: 'none', 262 position: 'relative' 263 }); 264 // apply the calculated width after the float is applied to prevent scrollbar interference 265 slider.children.css('width', getSlideWidth()); 266 // if slideMargin is supplied, add the css 267 if (slider.settings.mode === 'horizontal' && slider.settings.slideMargin > 0) { 268 slider.children.css('marginRight', slider.settings.slideMargin); 269 } 270 if (slider.settings.mode === 'vertical' && slider.settings.slideMargin > 0) { 271 slider.children.css('marginBottom', slider.settings.slideMargin); 272 } 273 // if "fade" mode, add positioning and z-index CSS 274 if (slider.settings.mode === 'fade') { 275 slider.children.css({ 276 position: 'absolute', 277 zIndex: 0, 278 display: 'none' 279 }); 280 // prepare the z-index on the showing element 281 slider.children.eq(slider.settings.startSlide).css({ 282 zIndex: slider.settings.slideZIndex, 283 display: 'block' 284 }); 285 } 286 // create an element to contain all slider controls (pager, start / stop, etc) 287 slider.controls.el = $('<div class="bx-controls" />'); 288 // if captions are requested, add them 289 if (slider.settings.captions) { 290 appendCaptions(); 291 } 292 // check if startSlide is last slide 293 slider.active.last = slider.settings.startSlide === getPagerQty() - 1; 294 // if video is true, set up the fitVids plugin 295 if (slider.settings.video) { 296 el.fitVids(); 297 } 298 //preloadImages 299 if (slider.settings.preloadImages === 'none') { 300 preloadSelector = null; 301 } else if (slider.settings.preloadImages === 'all' || slider.settings.ticker) { 302 preloadSelector = slider.children; 303 } 304 // only check for control addition if not in "ticker" mode 305 if (!slider.settings.ticker) { 306 // if controls are requested, add them 307 if (slider.settings.controls) { 308 appendControls(); 309 } 310 // if auto is true, and auto controls are requested, add them 311 if (slider.settings.auto && slider.settings.autoControls) { 312 appendControlsAuto(); 313 } 314 // if pager is requested, add it 315 if (slider.settings.pager) { 316 appendPager(); 317 } 318 // if any control option is requested, add the controls wrapper 319 if (slider.settings.controls || slider.settings.autoControls || slider.settings.pager) { 320 slider.viewport.after(slider.controls.el); 321 } 322 // if ticker mode, do not allow a pager 323 } else { 324 slider.settings.pager = false; 325 } 326 if (preloadSelector === null) { 327 start(); 328 } else { 329 loadElements(preloadSelector, start); 330 } 331 }; 332 333 var loadElements = function (selector, callback) { 334 var total = selector.find('img:not([src=""]), iframe').length, 335 count = 0; 336 if (total === 0) { 337 callback(); 338 return; 339 } 340 selector.find('img:not([src=""]), iframe').each(function () { 341 $(this).one('load error', function () { 342 if (++count === total) { 343 callback(); 344 } 345 }).each(function () { 346 if (this.complete || this.src == '') { 347 $(this).trigger('load'); 348 } 349 }); 350 }); 351 }; 352 353 /** 354 * Start the slider 355 */ 356 var start = function () { 357 // if infinite loop, prepare additional slides 358 if (slider.settings.infiniteLoop && slider.settings.mode !== 'fade' && !slider.settings.ticker) { 359 var slice = slider.settings.mode === 'vertical' ? slider.settings.minSlides : slider.settings.maxSlides, 360 sliceAppend = slider.children.slice(0, slice).clone(true).addClass('bx-clone'), 361 slicePrepend = slider.children.slice(-slice).clone(true).addClass('bx-clone'); 362 if (slider.settings.ariaHidden) { 363 sliceAppend.attr('aria-hidden', true); 364 slicePrepend.attr('aria-hidden', true); 365 } 366 el.append(sliceAppend).prepend(slicePrepend); 367 } 368 // remove the loading DOM element 369 slider.loader.remove(); 370 // set the left / top position of "el" 371 setSlidePosition(); 372 // if "vertical" mode, always use adaptiveHeight to prevent odd behavior 373 if (slider.settings.mode === 'vertical') { 374 slider.settings.adaptiveHeight = true; 375 } 376 // set the viewport height 377 slider.viewport.height(getViewportHeight()); 378 // make sure everything is positioned just right (same as a window resize) 379 el.redrawSlider(); 380 // onSliderLoad callback 381 slider.settings.onSliderLoad.call(el, slider.active.index); 382 // slider has been fully initialized 383 slider.initialized = true; 384 // add the resize call to the window 385 if (slider.settings.responsive) { 386 $(window).on('resize', resizeWindow); 387 } 388 // if auto is true and has more than 1 page, start the show 389 if (slider.settings.auto && slider.settings.autoStart && (getPagerQty() > 1 || slider.settings.autoSlideForOnePage)) { 390 initAuto(); 391 } 392 // if ticker is true, start the ticker 393 if (slider.settings.ticker) { 394 initTicker(); 395 } 396 // if pager is requested, make the appropriate pager link active 397 if (slider.settings.pager) { 398 updatePagerActive(slider.settings.startSlide); 399 } 400 // check for any updates to the controls (like hideControlOnEnd updates) 401 if (slider.settings.controls) { 402 updateDirectionControls(); 403 } 404 // if touchEnabled is true, setup the touch events 405 if (slider.settings.touchEnabled && !slider.settings.ticker) { 406 initTouch(); 407 } 408 // if keyboardEnabled is true, setup the keyboard events 409 if (slider.settings.keyboardEnabled && !slider.settings.ticker) { 410 $(document).keydown(keyPress); 411 } 412 }; 413 414 /** 415 * Returns the calculated height of the viewport, used to determine either adaptiveHeight or the maxHeight value 416 */ 417 var getViewportHeight = function () { 418 var height = 0; 419 // first determine which children (slides) should be used in our height calculation 420 var children = $(); 421 // if mode is not "vertical" and adaptiveHeight is false, include all children 422 if (slider.settings.mode !== 'vertical' && !slider.settings.adaptiveHeight) { 423 children = slider.children; 424 } else { 425 // if not carousel, return the single active child 426 if (!slider.carousel) { 427 children = slider.children.eq(slider.active.index); 428 // if carousel, return a slice of children 429 } else { 430 // get the individual slide index 431 var currentIndex = slider.settings.moveSlides === 1 ? slider.active.index : slider.active.index * getMoveBy(); 432 // add the current slide to the children 433 children = slider.children.eq(currentIndex); 434 // cycle through the remaining "showing" slides 435 for (i = 1; i <= slider.settings.maxSlides - 1; i++) { 436 // if looped back to the start 437 if (currentIndex + i >= slider.children.length) { 438 children = children.add(slider.children.eq(i - 1)); 439 } else { 440 children = children.add(slider.children.eq(currentIndex + i)); 441 } 442 } 443 } 444 } 445 // if "vertical" mode, calculate the sum of the heights of the children 446 if (slider.settings.mode === 'vertical') { 447 children.each(function (index) { 448 height += $(this).outerHeight(); 449 }); 450 // add user-supplied margins 451 if (slider.settings.slideMargin > 0) { 452 height += slider.settings.slideMargin * (slider.settings.minSlides - 1); 453 } 454 // if not "vertical" mode, calculate the max height of the children 455 } else { 456 height = Math.max.apply(Math, children.map(function () { 457 return $(this).outerHeight(false); 458 }).get()); 459 } 460 461 if (slider.viewport.css('box-sizing') === 'border-box') { 462 height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')) + 463 parseFloat(slider.viewport.css('border-top-width')) + parseFloat(slider.viewport.css('border-bottom-width')); 464 } else if (slider.viewport.css('box-sizing') === 'padding-box') { 465 height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')); 466 } 467 468 return height; 469 }; 470 471 /** 472 * Returns the calculated width to be used for the outer wrapper / viewport 473 */ 474 var getViewportMaxWidth = function () { 475 var width = '100%'; 476 if (slider.settings.slideWidth > 0) { 477 if (slider.settings.mode === 'horizontal') { 478 width = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 479 } else { 480 width = slider.settings.slideWidth; 481 } 482 } 483 return width; 484 }; 485 486 /** 487 * Returns the calculated width to be applied to each slide 488 */ 489 var getSlideWidth = function () { 490 var newElWidth = slider.settings.slideWidth, // start with any user-supplied slide width 491 wrapWidth = slider.viewport.width(); // get the current viewport width 492 // if slide width was not supplied, or is larger than the viewport use the viewport width 493 if (slider.settings.slideWidth === 0 || 494 (slider.settings.slideWidth > wrapWidth && !slider.carousel) || 495 slider.settings.mode === 'vertical') { 496 newElWidth = wrapWidth; 497 // if carousel, use the thresholds to determine the width 498 } else if (slider.settings.maxSlides > 1 && slider.settings.mode === 'horizontal') { 499 if (wrapWidth > slider.maxThreshold) { 500 return newElWidth; 501 } else if (wrapWidth < slider.minThreshold) { 502 newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides; 503 } else if (slider.settings.shrinkItems) { 504 newElWidth = Math.floor((wrapWidth + slider.settings.slideMargin) / (Math.ceil((wrapWidth + slider.settings.slideMargin) / (newElWidth + slider.settings.slideMargin))) - slider.settings.slideMargin); 505 } 506 } 507 return newElWidth; 508 }; 509 510 /** 511 * Returns the number of slides currently visible in the viewport (includes partially visible slides) 512 */ 513 var getNumberSlidesShowing = function () { 514 var slidesShowing = 1, 515 childWidth = null; 516 if (slider.settings.mode === 'horizontal' && slider.settings.slideWidth > 0) { 517 // if viewport is smaller than minThreshold, return minSlides 518 if (slider.viewport.width() < slider.minThreshold) { 519 slidesShowing = slider.settings.minSlides; 520 // if viewport is larger than maxThreshold, return maxSlides 521 } else if (slider.viewport.width() > slider.maxThreshold) { 522 slidesShowing = slider.settings.maxSlides; 523 // if viewport is between min / max thresholds, divide viewport width by first child width 524 } else { 525 childWidth = slider.children.first().width() + slider.settings.slideMargin; 526 slidesShowing = Math.floor((slider.viewport.width() + 527 slider.settings.slideMargin) / childWidth) || 1; 528 } 529 // if "vertical" mode, slides showing will always be minSlides 530 } else if (slider.settings.mode === 'vertical') { 531 slidesShowing = slider.settings.minSlides; 532 } 533 return slidesShowing; 534 }; 535 536 /** 537 * Returns the number of pages (one full viewport of slides is one "page") 538 */ 539 var getPagerQty = function () { 540 var pagerQty = 0, 541 breakPoint = 0, 542 counter = 0; 543 // if moveSlides is specified by the user 544 if (slider.settings.moveSlides > 0) { 545 if (slider.settings.infiniteLoop) { 546 pagerQty = Math.ceil(slider.children.length / getMoveBy()); 547 } else { 548 // when breakpoint goes above children length, counter is the number of pages 549 while (breakPoint < slider.children.length) { 550 ++pagerQty; 551 breakPoint = counter + getNumberSlidesShowing(); 552 counter += slider.settings.moveSlides <= getNumberSlidesShowing() ? slider.settings.moveSlides : getNumberSlidesShowing(); 553 } 554 return counter; 555 } 556 // if moveSlides is 0 (auto) divide children length by sides showing, then round up 557 } else { 558 pagerQty = Math.ceil(slider.children.length / getNumberSlidesShowing()); 559 } 560 return pagerQty; 561 }; 562 563 /** 564 * Returns the number of individual slides by which to shift the slider 565 */ 566 var getMoveBy = function () { 567 // if moveSlides was set by the user and moveSlides is less than number of slides showing 568 if (slider.settings.moveSlides > 0 && slider.settings.moveSlides <= getNumberSlidesShowing()) { 569 return slider.settings.moveSlides; 570 } 571 // if moveSlides is 0 (auto) 572 return getNumberSlidesShowing(); 573 }; 574 575 /** 576 * Sets the slider's (el) left or top position 577 */ 578 var setSlidePosition = function () { 579 var position, lastChild, lastShowingIndex; 580 // if last slide, not infinite loop, and number of children is larger than specified maxSlides 581 if (slider.children.length > slider.settings.maxSlides && slider.active.last && !slider.settings.infiniteLoop) { 582 if (slider.settings.mode === 'horizontal') { 583 // get the last child's position 584 lastChild = slider.children.last(); 585 position = lastChild.position(); 586 // set the left position 587 setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.outerWidth())), 'reset', 0); 588 } else if (slider.settings.mode === 'vertical') { 589 // get the last showing index's position 590 lastShowingIndex = slider.children.length - slider.settings.minSlides; 591 position = slider.children.eq(lastShowingIndex).position(); 592 // set the top position 593 setPositionProperty(-position.top, 'reset', 0); 594 } 595 // if not last slide 596 } else { 597 // get the position of the first showing slide 598 position = slider.children.eq(slider.active.index * getMoveBy()).position(); 599 // check for last slide 600 if (slider.active.index === getPagerQty() - 1) { 601 slider.active.last = true; 602 } 603 // set the respective position 604 if (position !== undefined) { 605 if (slider.settings.mode === 'horizontal') { 606 setPositionProperty(-position.left, 'reset', 0); 607 } else if (slider.settings.mode === 'vertical') { 608 setPositionProperty(-position.top, 'reset', 0); 609 } 610 } 611 } 612 }; 613 614 /** 615 * Sets the el's animating property position (which in turn will sometimes animate el). 616 * If using CSS, sets the transform property. If not using CSS, sets the top / left property. 617 * 618 * @param value (int) 619 * - the animating property's value 620 * 621 * @param type (string) 'slide', 'reset', 'ticker' 622 * - the type of instance for which the function is being 623 * 624 * @param duration (int) 625 * - the amount of time (in ms) the transition should occupy 626 * 627 * @param params (array) optional 628 * - an optional parameter containing any variables that need to be passed in 629 */ 630 var setPositionProperty = function (value, type, duration, params) { 631 var animateObj, propValue; 632 // use CSS transform 633 if (slider.usingCSS) { 634 // determine the translate3d value 635 propValue = slider.settings.mode === 'vertical' ? 'translate3d(0, ' + value + 'px, 0)' : 'translate3d(' + value + 'px, 0, 0)'; 636 // add the CSS transition-duration 637 el.css('-' + slider.cssPrefix + '-transition-duration', duration / 1000 + 's'); 638 if (type === 'slide') { 639 // set the property value 640 el.css(slider.animProp, propValue); 641 if (duration !== 0) { 642 // add a callback method - executes when CSS transition completes 643 el.on('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function (e) { 644 //make sure it's the correct one 645 if (!$(e.target).is(el)) { 646 return; 647 } 648 // remove the callback 649 el.off('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 650 updateAfterSlideTransition(); 651 }); 652 } else { //duration = 0 653 updateAfterSlideTransition(); 654 } 655 } else if (type === 'reset') { 656 el.css(slider.animProp, propValue); 657 } else if (type === 'ticker') { 658 // make the transition use 'linear' 659 el.css('-' + slider.cssPrefix + '-transition-timing-function', 'linear'); 660 el.css(slider.animProp, propValue); 661 if (duration !== 0) { 662 el.on('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function (e) { 663 //make sure it's the correct one 664 if (!$(e.target).is(el)) { 665 return; 666 } 667 // remove the callback 668 el.off('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 669 // reset the position 670 setPositionProperty(params.resetValue, 'reset', 0); 671 // start the loop again 672 tickerLoop(); 673 }); 674 } else { //duration = 0 675 setPositionProperty(params.resetValue, 'reset', 0); 676 tickerLoop(); 677 } 678 } 679 // use JS animate 680 } else { 681 animateObj = {}; 682 animateObj[slider.animProp] = value; 683 if (type === 'slide') { 684 el.animate(animateObj, duration, slider.settings.easing, function () { 685 updateAfterSlideTransition(); 686 }); 687 } else if (type === 'reset') { 688 el.css(slider.animProp, value); 689 } else if (type === 'ticker') { 690 el.animate(animateObj, duration, 'linear', function () { 691 setPositionProperty(params.resetValue, 'reset', 0); 692 // run the recursive loop after animation 693 tickerLoop(); 694 }); 695 } 696 } 697 }; 698 699 /** 700 * Populates the pager with proper amount of pages 701 */ 702 var populatePager = function () { 703 var pagerHtml = '', 704 linkContent = '', 705 pagerQty = getPagerQty(); 706 // loop through each pager item 707 for (var i = 0; i < pagerQty; i++) { 708 linkContent = ''; 709 // if a buildPager function is supplied, use it to get pager link value, else use index + 1 710 if (slider.settings.buildPager && $.isFunction(slider.settings.buildPager) || slider.settings.pagerCustom) { 711 linkContent = slider.settings.buildPager(i); 712 slider.pagerEl.addClass('bx-custom-pager'); 713 } else { 714 linkContent = i + 1; 715 slider.pagerEl.addClass('bx-default-pager'); 716 } 717 // var linkContent = slider.settings.buildPager && $.isFunction(slider.settings.buildPager) ? slider.settings.buildPager(i) : i + 1; 718 // add the markup to the string 719 pagerHtml += '<div class="bx-pager-item"><a href="" data-slide-index="' + i + '" class="bx-pager-link">' + linkContent + '</a></div>'; 720 } 721 // populate the pager element with pager links 722 slider.pagerEl.html(pagerHtml); 723 }; 724 725 /** 726 * Appends the pager to the controls element 727 */ 728 var appendPager = function () { 729 if (!slider.settings.pagerCustom) { 730 // create the pager DOM element 731 slider.pagerEl = $('<div class="bx-pager" />'); 732 // if a pager selector was supplied, populate it with the pager 733 if (slider.settings.pagerSelector) { 734 $(slider.settings.pagerSelector).html(slider.pagerEl); 735 // if no pager selector was supplied, add it after the wrapper 736 } else { 737 slider.controls.el.addClass('bx-has-pager').append(slider.pagerEl); 738 } 739 // populate the pager 740 populatePager(); 741 } else { 742 slider.pagerEl = $(slider.settings.pagerCustom); 743 } 744 // assign the pager click binding 745 slider.pagerEl.on('click touchend', 'a', clickPagerBind); 746 }; 747 748 /** 749 * Appends prev / next controls to the controls element 750 */ 751 var appendControls = function () { 752 753 slider.controls.next = $('<a class="bx-next" href="">' + slider.settings.nextText + '</a>'); 754 slider.controls.prev = $('<a class="bx-prev" href="">' + slider.settings.prevText + '</a>'); 755 // add click actions to the controls 756 slider.controls.next.on('click touchend', clickNextBind); 757 slider.controls.prev.on('click touchend', clickPrevBind); 758 759 // if nextSelector was supplied, populate it 760 if (slider.settings.nextSelector) { 761 $(slider.settings.nextSelector).append(slider.controls.next); 762 763/* let nextSelector = document.querySelector(slider.settings.nextSelector) 764 if (nextSelector) { 765 nextSelector.addEventListener('click', clickNextBind); 766 }*/ 767 } 768 // if prevSelector was supplied, populate it 769 770 if (slider.settings.prevSelector) { 771 $(slider.settings.prevSelector).append(slider.controls.prev); 772 773 /* let prevSelector = document.querySelector(slider.settings.prevSelector) 774 if (prevSelector) { 775 prevSelector.addEventListener('click', clickPrevBind); 776 }*/ 777 } 778 // if no custom selectors were supplied 779 if (!slider.settings.nextSelector && !slider.settings.prevSelector) { 780 // add the controls to the DOM 781 slider.controls.directionEl = $('<div class="bx-controls-direction" />'); 782 // add the control elements to the directionEl 783 slider.controls.directionEl.append(slider.controls.prev).append(slider.controls.next); 784 // slider.viewport.append(slider.controls.directionEl); 785 slider.controls.el.addClass('bx-has-controls-direction').append(slider.controls.directionEl); 786 } 787 }; 788 789 /** 790 * Appends start / stop auto controls to the controls element 791 */ 792 var appendControlsAuto = function () { 793 slider.controls.start = $('<div class="bx-controls-auto-item"><a class="bx-start" href="">' + slider.settings.startText + '</a></div>'); 794 slider.controls.stop = $('<div class="bx-controls-auto-item"><a class="bx-stop" href="">' + slider.settings.stopText + '</a></div>'); 795 // add the controls to the DOM 796 slider.controls.autoEl = $('<div class="bx-controls-auto" />'); 797 // on click actions to the controls 798 slider.controls.autoEl.on('click', '.bx-start', clickStartBind); 799 slider.controls.autoEl.on('click', '.bx-stop', clickStopBind); 800 // if autoControlsCombine, insert only the "start" control 801 if (slider.settings.autoControlsCombine) { 802 slider.controls.autoEl.append(slider.controls.start); 803 // if autoControlsCombine is false, insert both controls 804 } else { 805 slider.controls.autoEl.append(slider.controls.start).append(slider.controls.stop); 806 } 807 // if auto controls selector was supplied, populate it with the controls 808 if (slider.settings.autoControlsSelector) { 809 $(slider.settings.autoControlsSelector).html(slider.controls.autoEl); 810 // if auto controls selector was not supplied, add it after the wrapper 811 } else { 812 slider.controls.el.addClass('bx-has-controls-auto').append(slider.controls.autoEl); 813 } 814 // update the auto controls 815 updateAutoControls(slider.settings.autoStart ? 'stop' : 'start'); 816 }; 817 818 /** 819 * Appends image captions to the DOM 820 */ 821 var appendCaptions = function () { 822 // cycle through each child 823 slider.children.each(function (index) { 824 // get the image title attribute 825 var title = $(this).find('img:first').attr('title'); 826 // append the caption 827 if (title !== undefined && ('' + title).length) { 828 $(this).append('<div class="bx-caption"><span>' + title + '</span></div>'); 829 } 830 }); 831 }; 832 833 /** 834 * Click next binding 835 * 836 * @param e (event) 837 * - DOM event object 838 */ 839 var clickNextBind = function (e) { 840 e.preventDefault(); 841 if (slider.controls.el.hasClass('disabled')) { 842 return; 843 } 844 // if auto show is running, stop it 845 if (slider.settings.auto && slider.settings.stopAutoOnClick) { 846 el.stopAuto(); 847 } 848 el.goToNextSlide(); 849 }; 850 851 /** 852 * Click prev binding 853 * 854 * @param e (event) 855 * - DOM event object 856 */ 857 var clickPrevBind = function (e) { 858 e.preventDefault(); 859 if (slider.controls.el.hasClass('disabled')) { 860 return; 861 } 862 // if auto show is running, stop it 863 if (slider.settings.auto && slider.settings.stopAutoOnClick) { 864 el.stopAuto(); 865 } 866 el.goToPrevSlide(); 867 }; 868 869 /** 870 * Click start binding 871 * 872 * @param e (event) 873 * - DOM event object 874 */ 875 var clickStartBind = function (e) { 876 el.startAuto(); 877 e.preventDefault(); 878 }; 879 880 /** 881 * Click stop binding 882 * 883 * @param e (event) 884 * - DOM event object 885 */ 886 var clickStopBind = function (e) { 887 el.stopAuto(); 888 e.preventDefault(); 889 }; 890 891 /** 892 * Click pager binding 893 * 894 * @param e (event) 895 * - DOM event object 896 */ 897 var clickPagerBind = function (e) { 898 var pagerLink, pagerIndex; 899 e.preventDefault(); 900 if (slider.controls.el.hasClass('disabled')) { 901 return; 902 } 903 // if auto show is running, stop it 904 if (slider.settings.auto && slider.settings.stopAutoOnClick) { 905 el.stopAuto(); 906 } 907 pagerLink = $(e.currentTarget); 908 if (pagerLink.attr('data-slide-index') !== undefined) { 909 pagerIndex = parseInt(pagerLink.attr('data-slide-index')); 910 // if clicked pager link is not active, continue with the goToSlide call 911 if (pagerIndex !== slider.active.index) { 912 el.goToSlide(pagerIndex); 913 } 914 } 915 }; 916 917 /** 918 * Updates the pager links with an active class 919 * 920 * @param slideIndex (int) 921 * - index of slide to make active 922 */ 923 var updatePagerActive = function (slideIndex) { 924 // if "short" pager type 925 var len = slider.children.length; // nb of children 926 if (slider.settings.pagerType === 'short') { 927 if (slider.settings.maxSlides > 1) { 928 len = Math.ceil(slider.children.length / slider.settings.maxSlides); 929 } 930 slider.pagerEl.html((slideIndex + 1) + slider.settings.pagerShortSeparator + len); 931 return; 932 } 933 // remove all pager active classes 934 slider.pagerEl.find('a').removeClass('active'); 935 // apply the active class for all pagers 936 slider.pagerEl.each(function (i, el) { 937 $(el).find('a').eq(slideIndex).addClass('active'); 938 }); 939 }; 940 941 /** 942 * Performs needed actions after a slide transition 943 */ 944 var updateAfterSlideTransition = function () { 945 // if infinite loop is true 946 if (slider.settings.infiniteLoop) { 947 var position = ''; 948 // first slide 949 if (slider.active.index === 0) { 950 // set the new position 951 position = slider.children.eq(0).position(); 952 // carousel, last slide 953 } else if (slider.active.index === getPagerQty() - 1 && slider.carousel) { 954 position = slider.children.eq((getPagerQty() - 1) * getMoveBy()).position(); 955 // last slide 956 } else if (slider.active.index === slider.children.length - 1) { 957 position = slider.children.eq(slider.children.length - 1).position(); 958 } 959 if (position) { 960 if (slider.settings.mode === 'horizontal') { 961 setPositionProperty(-position.left, 'reset', 0); 962 } else if (slider.settings.mode === 'vertical') { 963 setPositionProperty(-position.top, 'reset', 0); 964 } 965 } 966 } 967 // declare that the transition is complete 968 slider.working = false; 969 // onSlideAfter callback 970 slider.settings.onSlideAfter.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 971 }; 972 973 /** 974 * Updates the auto controls state (either active, or combined switch) 975 * 976 * @param state (string) "start", "stop" 977 * - the new state of the auto show 978 */ 979 var updateAutoControls = function (state) { 980 // if autoControlsCombine is true, replace the current control with the new state 981 if (slider.settings.autoControlsCombine) { 982 slider.controls.autoEl.html(slider.controls[state]); 983 // if autoControlsCombine is false, apply the "active" class to the appropriate control 984 } else { 985 slider.controls.autoEl.find('a').removeClass('active'); 986 slider.controls.autoEl.find('a:not(.bx-' + state + ')').addClass('active'); 987 } 988 }; 989 990 /** 991 * Updates the direction controls (checks if either should be hidden) 992 */ 993 var updateDirectionControls = function () { 994 if (getPagerQty() === 1) { 995 slider.controls.prev.addClass('disabled'); 996 slider.controls.next.addClass('disabled'); 997 } else if (!slider.settings.infiniteLoop && slider.settings.hideControlOnEnd) { 998 // if first slide 999 if (slider.active.index === 0) { 1000 slider.controls.prev.addClass('disabled'); 1001 slider.controls.next.removeClass('disabled'); 1002 // if last slide 1003 } else if (slider.active.index === getPagerQty() - 1) { 1004 slider.controls.next.addClass('disabled'); 1005 slider.controls.prev.removeClass('disabled'); 1006 // if any slide in the middle 1007 } else { 1008 slider.controls.prev.removeClass('disabled'); 1009 slider.controls.next.removeClass('disabled'); 1010 } 1011 } 1012 }; 1013 /* auto start and stop functions */ 1014 var windowFocusHandler = function () { 1015 el.startAuto(); 1016 }; 1017 var windowBlurHandler = function () { 1018 el.stopAuto(); 1019 }; 1020 /** 1021 * Initializes the auto process 1022 */ 1023 var initAuto = function () { 1024 // if autoDelay was supplied, launch the auto show using a setTimeout() call 1025 if (slider.settings.autoDelay > 0) { 1026 setTimeout(el.startAuto, slider.settings.autoDelay); 1027 // if autoDelay was not supplied, start the auto show normally 1028 } else { 1029 el.startAuto(); 1030 1031 //add focus and blur events to ensure its running if timeout gets paused 1032 $(window).focus(windowFocusHandler).blur(windowBlurHandler); 1033 } 1034 // if autoHover is requested 1035 if (slider.settings.autoHover) { 1036 // on el hover 1037 el.hover(function () { 1038 // if the auto show is currently playing (has an active interval) 1039 if (slider.interval) { 1040 // stop the auto show and pass true argument which will prevent control update 1041 el.stopAuto(true); 1042 // create a new autoPaused value which will be used by the relative "mouseout" event 1043 slider.autoPaused = true; 1044 } 1045 }, function () { 1046 // if the autoPaused value was created be the prior "mouseover" event 1047 if (slider.autoPaused) { 1048 // start the auto show and pass true argument which will prevent control update 1049 el.startAuto(true); 1050 // reset the autoPaused value 1051 slider.autoPaused = null; 1052 } 1053 }); 1054 } 1055 }; 1056 1057 /** 1058 * Initializes the ticker process 1059 */ 1060 var initTicker = function () { 1061 var startPosition = 0, 1062 position, transform, value, idx, ratio, property, newSpeed, totalDimens; 1063 // if autoDirection is "next", append a clone of the entire slider 1064 if (slider.settings.autoDirection === 'next') { 1065 el.append(slider.children.clone().addClass('bx-clone')); 1066 // if autoDirection is "prev", prepend a clone of the entire slider, and set the left position 1067 } else { 1068 el.prepend(slider.children.clone().addClass('bx-clone')); 1069 position = slider.children.first().position(); 1070 startPosition = slider.settings.mode === 'horizontal' ? -position.left : -position.top; 1071 } 1072 setPositionProperty(startPosition, 'reset', 0); 1073 // do not allow controls in ticker mode 1074 slider.settings.pager = false; 1075 slider.settings.controls = false; 1076 slider.settings.autoControls = false; 1077 // if autoHover is requested 1078 if (slider.settings.tickerHover) { 1079 if (slider.usingCSS) { 1080 idx = slider.settings.mode === 'horizontal' ? 4 : 5; 1081 slider.viewport.hover(function () { 1082 transform = el.css('-' + slider.cssPrefix + '-transform'); 1083 value = parseFloat(transform.split(',')[idx]); 1084 setPositionProperty(value, 'reset', 0); 1085 }, function () { 1086 totalDimens = 0; 1087 slider.children.each(function (index) { 1088 totalDimens += slider.settings.mode === 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true); 1089 }); 1090 // calculate the speed ratio (used to determine the new speed to finish the paused animation) 1091 ratio = slider.settings.speed / totalDimens; 1092 // determine which property to use 1093 property = slider.settings.mode === 'horizontal' ? 'left' : 'top'; 1094 // calculate the new speed 1095 newSpeed = ratio * (totalDimens - (Math.abs(parseInt(value)))); 1096 tickerLoop(newSpeed); 1097 }); 1098 } else { 1099 // on el hover 1100 slider.viewport.hover(function () { 1101 el.stop(); 1102 }, function () { 1103 // calculate the total width of children (used to calculate the speed ratio) 1104 totalDimens = 0; 1105 slider.children.each(function (index) { 1106 totalDimens += slider.settings.mode === 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true); 1107 }); 1108 // calculate the speed ratio (used to determine the new speed to finish the paused animation) 1109 ratio = slider.settings.speed / totalDimens; 1110 // determine which property to use 1111 property = slider.settings.mode === 'horizontal' ? 'left' : 'top'; 1112 // calculate the new speed 1113 newSpeed = ratio * (totalDimens - (Math.abs(parseInt(el.css(property))))); 1114 tickerLoop(newSpeed); 1115 }); 1116 } 1117 } 1118 // start the ticker loop 1119 tickerLoop(); 1120 }; 1121 1122 /** 1123 * Runs a continuous loop, news ticker-style 1124 */ 1125 var tickerLoop = function (resumeSpeed) { 1126 var speed = resumeSpeed ? resumeSpeed : slider.settings.speed, 1127 position = {left: 0, top: 0}, 1128 reset = {left: 0, top: 0}, 1129 animateProperty, resetValue, params; 1130 1131 // if "next" animate left position to last child, then reset left to 0 1132 if (slider.settings.autoDirection === 'next') { 1133 position = el.find('.bx-clone').first().position(); 1134 // if "prev" animate left position to 0, then reset left to first non-clone child 1135 } else { 1136 reset = slider.children.first().position(); 1137 } 1138 animateProperty = slider.settings.mode === 'horizontal' ? -position.left : -position.top; 1139 resetValue = slider.settings.mode === 'horizontal' ? -reset.left : -reset.top; 1140 params = {resetValue: resetValue}; 1141 setPositionProperty(animateProperty, 'ticker', speed, params); 1142 }; 1143 1144 /** 1145 * Check if el is on screen 1146 */ 1147 var isOnScreen = function (el) { 1148 var win = $(window), 1149 viewport = { 1150 top: win.scrollTop(), 1151 left: win.scrollLeft() 1152 }, 1153 bounds = el.offset(); 1154 1155 viewport.right = viewport.left + win.width(); 1156 viewport.bottom = viewport.top + win.height(); 1157 bounds.right = bounds.left + el.outerWidth(); 1158 bounds.bottom = bounds.top + el.outerHeight(); 1159 1160 return (!(viewport.right < bounds.left || viewport.left > bounds.right || viewport.bottom < bounds.top || viewport.top > bounds.bottom)); 1161 }; 1162 1163 /** 1164 * Initializes keyboard events 1165 */ 1166 var keyPress = function (e) { 1167 var activeElementTag = document.activeElement.tagName.toLowerCase(), 1168 tagFilters = 'input|textarea', 1169 p = new RegExp(activeElementTag, ['i']), 1170 result = p.exec(tagFilters); 1171 1172 if (result == null && isOnScreen(el)) { 1173 if (e.keyCode === 39) { 1174 clickNextBind(e); 1175 return false; 1176 } else if (e.keyCode === 37) { 1177 clickPrevBind(e); 1178 return false; 1179 } 1180 } 1181 }; 1182 1183 /** 1184 * Initializes touch events 1185 */ 1186 var initTouch = function () { 1187 // initialize object to contain all touch values 1188 slider.touch = { 1189 start: {x: 0, y: 0}, 1190 end: {x: 0, y: 0} 1191 }; 1192 slider.viewport.on('touchstart MSPointerDown pointerdown', onTouchStart); 1193 1194 //for browsers that have implemented pointer events and fire a click after 1195 //every pointerup regardless of whether pointerup is on same screen location as pointerdown or not 1196 slider.viewport.on('click', '.bxslider a', function (e) { 1197 if (slider.viewport.hasClass('click-disabled')) { 1198 e.preventDefault(); 1199 slider.viewport.removeClass('click-disabled'); 1200 } 1201 }); 1202 }; 1203 1204 /** 1205 * Event handler for "touchstart" 1206 * 1207 * @param e (event) 1208 * - DOM event object 1209 */ 1210 var onTouchStart = function (e) { 1211 // watch only for left mouse, touch contact and pen contact 1212 // touchstart event object doesn`t have button property 1213 if (e.type !== 'touchstart' && e.button !== 0) { 1214 return; 1215 } 1216 e.preventDefault(); 1217 //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 1218 slider.controls.el.addClass('disabled'); 1219 1220 if (slider.working) { 1221 slider.controls.el.removeClass('disabled'); 1222 } else { 1223 // record the original position when touch starts 1224 slider.touch.originalPos = el.position(); 1225 var orig = e.originalEvent, 1226 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig]; 1227 var chromePointerEvents = typeof PointerEvent === 'function'; 1228 if (chromePointerEvents) { 1229 if (orig.pointerId === undefined) { 1230 return; 1231 } 1232 } 1233 // record the starting touch x, y coordinates 1234 slider.touch.start.x = touchPoints[0].pageX; 1235 slider.touch.start.y = touchPoints[0].pageY; 1236 1237 if (slider.viewport.get(0).setPointerCapture) { 1238 slider.pointerId = orig.pointerId; 1239 slider.viewport.get(0).setPointerCapture(slider.pointerId); 1240 } 1241 // store original event data for click fixation 1242 slider.originalClickTarget = orig.originalTarget || orig.target; 1243 slider.originalClickButton = orig.button; 1244 slider.originalClickButtons = orig.buttons; 1245 slider.originalEventType = orig.type; 1246 // at this moment we don`t know what it is click or swipe 1247 slider.hasMove = false; 1248 // on a "touchmove" event to the viewport 1249 slider.viewport.on('touchmove MSPointerMove pointermove', onTouchMove); 1250 // on a "touchend" event to the viewport 1251 slider.viewport.on('touchend MSPointerUp pointerup', onTouchEnd); 1252 slider.viewport.on('MSPointerCancel pointercancel', onPointerCancel); 1253 } 1254 }; 1255 1256 /** 1257 * Cancel Pointer for Windows Phone 1258 * 1259 * @param e (event) 1260 * - DOM event object 1261 */ 1262 var onPointerCancel = function (e) { 1263 e.preventDefault(); 1264 /* onPointerCancel handler is needed to deal with situations when a touchend 1265 doesn't fire after a touchstart (this happens on windows phones only) */ 1266 setPositionProperty(slider.touch.originalPos.left, 'reset', 0); 1267 1268 //remove handlers 1269 slider.controls.el.removeClass('disabled'); 1270 slider.viewport.off('MSPointerCancel pointercancel', onPointerCancel); 1271 slider.viewport.off('touchmove MSPointerMove pointermove', onTouchMove); 1272 slider.viewport.off('touchend MSPointerUp pointerup', onTouchEnd); 1273 if (slider.viewport.get(0).releasePointerCapture) { 1274 slider.viewport.get(0).releasePointerCapture(slider.pointerId); 1275 } 1276 }; 1277 1278 /** 1279 * Event handler for "touchmove" 1280 * 1281 * @param e (event) 1282 * - DOM event object 1283 */ 1284 var onTouchMove = function (e) { 1285 var orig = e.originalEvent, 1286 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig], 1287 // if scrolling on y axis, do not prevent default 1288 xMovement = Math.abs(touchPoints[0].pageX - slider.touch.start.x), 1289 yMovement = Math.abs(touchPoints[0].pageY - slider.touch.start.y), 1290 value = 0, 1291 change = 0; 1292 // this is swipe 1293 slider.hasMove = true; 1294 1295 // x axis swipe 1296 if ((xMovement * 3) > yMovement && slider.settings.preventDefaultSwipeX) { 1297 e.preventDefault(); 1298 // y axis swipe 1299 } else if ((yMovement * 3) > xMovement && slider.settings.preventDefaultSwipeY) { 1300 e.preventDefault(); 1301 } 1302 if (e.type !== 'touchmove') { 1303 e.preventDefault(); 1304 } 1305 1306 if (slider.settings.mode !== 'fade' && slider.settings.oneToOneTouch) { 1307 // if horizontal, drag along x axis 1308 if (slider.settings.mode === 'horizontal') { 1309 change = touchPoints[0].pageX - slider.touch.start.x; 1310 value = slider.touch.originalPos.left + change; 1311 // if vertical, drag along y axis 1312 } else { 1313 change = touchPoints[0].pageY - slider.touch.start.y; 1314 value = slider.touch.originalPos.top + change; 1315 } 1316 setPositionProperty(value, 'reset', 0); 1317 } 1318 }; 1319 1320 /** 1321 * Event handler for "touchend" 1322 * 1323 * @param e (event) 1324 * - DOM event object 1325 */ 1326 var onTouchEnd = function (e) { 1327 e.preventDefault(); 1328 slider.viewport.off('touchmove MSPointerMove pointermove', onTouchMove); 1329 //enable slider controls as soon as user stops interacing with slides 1330 slider.controls.el.removeClass('disabled'); 1331 var orig = e.originalEvent, 1332 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig], 1333 value = 0, 1334 distance = 0; 1335 // record end x, y positions 1336 slider.touch.end.x = touchPoints[0].pageX; 1337 slider.touch.end.y = touchPoints[0].pageY; 1338 // if fade mode, check if absolute x distance clears the threshold 1339 if (slider.settings.mode === 'fade') { 1340 distance = Math.abs(slider.touch.start.x - slider.touch.end.x); 1341 if (distance >= slider.settings.swipeThreshold) { 1342 if (slider.touch.start.x > slider.touch.end.x) { 1343 el.goToNextSlide(); 1344 } else { 1345 el.goToPrevSlide(); 1346 } 1347 el.stopAuto(); 1348 } 1349 // not fade mode 1350 } else { 1351 // calculate distance and el's animate property 1352 if (slider.settings.mode === 'horizontal') { 1353 distance = slider.touch.end.x - slider.touch.start.x; 1354 value = slider.touch.originalPos.left; 1355 } else { 1356 distance = slider.touch.end.y - slider.touch.start.y; 1357 value = slider.touch.originalPos.top; 1358 } 1359 // if not infinite loop and first / last slide, do not attempt a slide transition 1360 if (!slider.settings.infiniteLoop && ((slider.active.index === 0 && distance > 0) || (slider.active.last && distance < 0))) { 1361 setPositionProperty(value, 'reset', 200); 1362 } else { 1363 // check if distance clears threshold 1364 if (Math.abs(distance) >= slider.settings.swipeThreshold) { 1365 if (distance < 0) { 1366 el.goToNextSlide(); 1367 } else { 1368 el.goToPrevSlide(); 1369 } 1370 el.stopAuto(); 1371 } else { 1372 // el.animate(property, 200); 1373 setPositionProperty(value, 'reset', 200); 1374 } 1375 } 1376 } 1377 slider.viewport.off('touchend MSPointerUp pointerup', onTouchEnd); 1378 1379 if (slider.viewport.get(0).releasePointerCapture) { 1380 slider.viewport.get(0).releasePointerCapture(slider.pointerId); 1381 } 1382 // if slider had swipe with left mouse, touch contact and pen contact 1383 if (slider.hasMove === false && (slider.originalClickButton === 0 || slider.originalEventType === 'touchstart')) { 1384 // trigger click event (fix for Firefox59 and PointerEvent standard compatibility) 1385 $(slider.originalClickTarget).trigger({ 1386 type: 'click', 1387 button: slider.originalClickButton, 1388 buttons: slider.originalClickButtons 1389 }); 1390 } 1391 }; 1392 1393 /** 1394 * Window resize event callback 1395 */ 1396 var resizeWindow = function (e) { 1397 // don't do anything if slider isn't initialized. 1398 if (!slider.initialized) { 1399 return; 1400 } 1401 // Delay if slider working. 1402 if (slider.working) { 1403 window.setTimeout(resizeWindow, 10); 1404 } else { 1405 // get the new window dimens (again, thank you IE) 1406 var windowWidthNew = $(window).width(), 1407 windowHeightNew = $(window).height(); 1408 // make sure that it is a true window resize 1409 // *we must check this because our dinosaur friend IE fires a window resize event when certain DOM elements 1410 // are resized. Can you just die already?* 1411 if (windowWidth !== windowWidthNew || windowHeight !== windowHeightNew) { 1412 // set the new window dimens 1413 windowWidth = windowWidthNew; 1414 windowHeight = windowHeightNew; 1415 // update all dynamic elements 1416 el.redrawSlider(); 1417 // Call user resize handler 1418 slider.settings.onSliderResize.call(el, slider.active.index); 1419 } 1420 } 1421 }; 1422 1423 /** 1424 * Adds an aria-hidden=true attribute to each element 1425 * 1426 * @param startVisibleIndex (int) 1427 * - the first visible element's index 1428 */ 1429 var applyAriaHiddenAttributes = function (startVisibleIndex) { 1430 var numberOfSlidesShowing = getNumberSlidesShowing(); 1431 // only apply attributes if the setting is enabled and not in ticker mode 1432 if (slider.settings.ariaHidden && !slider.settings.ticker) { 1433 // add aria-hidden=true to all elements 1434 slider.children.attr('aria-hidden', 'true'); 1435 // get the visible elements and change to aria-hidden=false 1436 slider.children.slice(startVisibleIndex, startVisibleIndex + numberOfSlidesShowing).attr('aria-hidden', 'false'); 1437 } 1438 }; 1439 1440 /** 1441 * Returns index according to present page range 1442 * 1443 * @param slideOndex (int) 1444 * - the desired slide index 1445 */ 1446 var setSlideIndex = function (slideIndex) { 1447 if (slideIndex < 0) { 1448 if (slider.settings.infiniteLoop) { 1449 return getPagerQty() - 1; 1450 } else { 1451 //we don't go to undefined slides 1452 return slider.active.index; 1453 } 1454 // if slideIndex is greater than children length, set active index to 0 (this happens during infinite loop) 1455 } else if (slideIndex >= getPagerQty()) { 1456 if (slider.settings.infiniteLoop) { 1457 return 0; 1458 } else { 1459 //we don't move to undefined pages 1460 return slider.active.index; 1461 } 1462 // set active index to requested slide 1463 } else { 1464 return slideIndex; 1465 } 1466 }; 1467 1468 /** 1469 * =================================================================================== 1470 * = PUBLIC FUNCTIONS 1471 * =================================================================================== 1472 */ 1473 1474 /** 1475 * Performs slide transition to the specified slide 1476 * 1477 * @param slideIndex (int) 1478 * - the destination slide's index (zero-based) 1479 * 1480 * @param direction (string) 1481 * - INTERNAL USE ONLY - the direction of travel ("prev" / "next") 1482 */ 1483 el.goToSlide = function (slideIndex, direction) { 1484 // onSlideBefore, onSlideNext, onSlidePrev callbacks 1485 // Allow transition canceling based on returned value 1486 var performTransition = true, 1487 moveBy = 0, 1488 position = {left: 0, top: 0}, 1489 lastChild = null, 1490 lastShowingIndex, eq, value, requestEl; 1491 // store the old index 1492 slider.oldIndex = slider.active.index; 1493 //set new index 1494 slider.active.index = setSlideIndex(slideIndex); 1495 1496 // if plugin is currently in motion, ignore request 1497 if (slider.working || slider.active.index === slider.oldIndex) { 1498 return; 1499 } 1500 // declare that plugin is in motion 1501 slider.working = true; 1502 1503 performTransition = slider.settings.onSlideBefore.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1504 1505 // If transitions canceled, reset and return 1506 if (typeof (performTransition) !== 'undefined' && !performTransition) { 1507 slider.active.index = slider.oldIndex; // restore old index 1508 slider.working = false; // is not in motion 1509 return; 1510 } 1511 1512 if (direction === 'next') { 1513 // Prevent canceling in future functions or lack there-of from negating previous commands to cancel 1514 if (!slider.settings.onSlideNext.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) { 1515 performTransition = false; 1516 } 1517 } else if (direction === 'prev') { 1518 // Prevent canceling in future functions or lack there-of from negating previous commands to cancel 1519 if (!slider.settings.onSlidePrev.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) { 1520 performTransition = false; 1521 } 1522 } 1523 1524 // check if last slide 1525 slider.active.last = slider.active.index >= getPagerQty() - 1; 1526 // update the pager with active class 1527 if (slider.settings.pager || slider.settings.pagerCustom) { 1528 updatePagerActive(slider.active.index); 1529 } 1530 // // check for direction control update 1531 if (slider.settings.controls) { 1532 updateDirectionControls(); 1533 } 1534 // if slider is set to mode: "fade" 1535 if (slider.settings.mode === 'fade') { 1536 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1537 if (slider.settings.adaptiveHeight && slider.viewport.height() !== getViewportHeight()) { 1538 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1539 } 1540 // fade out the visible child and reset its z-index value 1541 slider.children.filter(':visible').fadeOut(slider.settings.speed).css({zIndex: 0}); 1542 // fade in the newly requested slide 1543 slider.children.eq(slider.active.index).css('zIndex', slider.settings.slideZIndex + 1).fadeIn(slider.settings.speed, function () { 1544 $(this).css('zIndex', slider.settings.slideZIndex); 1545 updateAfterSlideTransition(); 1546 }); 1547 // slider mode is not "fade" 1548 } else { 1549 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1550 if (slider.settings.adaptiveHeight && slider.viewport.height() !== getViewportHeight()) { 1551 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1552 } 1553 // if carousel and not infinite loop 1554 if (!slider.settings.infiniteLoop && slider.carousel && slider.active.last) { 1555 if (slider.settings.mode === 'horizontal') { 1556 // get the last child position 1557 lastChild = slider.children.eq(slider.children.length - 1); 1558 position = lastChild.position(); 1559 // calculate the position of the last slide 1560 moveBy = slider.viewport.width() - lastChild.outerWidth(); 1561 } else { 1562 // get last showing index position 1563 lastShowingIndex = slider.children.length - slider.settings.minSlides; 1564 position = slider.children.eq(lastShowingIndex).position(); 1565 } 1566 // horizontal carousel, going previous while on first slide (infiniteLoop mode) 1567 } else if (slider.carousel && slider.active.last && direction === 'prev') { 1568 // get the last child position 1569 eq = slider.settings.moveSlides === 1 ? slider.settings.maxSlides - getMoveBy() : ((getPagerQty() - 1) * getMoveBy()) - (slider.children.length - slider.settings.maxSlides); 1570 lastChild = el.children('.bx-clone').eq(eq); 1571 position = lastChild.position(); 1572 // if infinite loop and "Next" is clicked on the last slide 1573 } else if (direction === 'next' && slider.active.index === 0) { 1574 // get the last clone position 1575 position = el.find('> .bx-clone').eq(slider.settings.maxSlides).position(); 1576 slider.active.last = false; 1577 // normal non-zero requests 1578 } else if (slideIndex >= 0) { 1579 //parseInt is applied to allow floats for slides/page 1580 requestEl = slideIndex * parseInt(getMoveBy()); 1581 position = slider.children.eq(requestEl).position(); 1582 } 1583 1584 /* If the position doesn't exist 1585 * (e.g. if you destroy the slider on a next click), 1586 * it doesn't throw an error. 1587 */ 1588 if (typeof (position) !== 'undefined') { 1589 value = slider.settings.mode === 'horizontal' ? -(position.left - moveBy) : -position.top; 1590 // plugin values to be animated 1591 setPositionProperty(value, 'slide', slider.settings.speed); 1592 } 1593 slider.working = false; 1594 } 1595 if (slider.settings.ariaHidden) { 1596 applyAriaHiddenAttributes(slider.active.index * getMoveBy()); 1597 } 1598 }; 1599 1600 /** 1601 * Transitions to the next slide in the show 1602 */ 1603 el.goToNextSlide = function () { 1604 // if infiniteLoop is false and last page is showing, disregard call 1605 if (!slider.settings.infiniteLoop && slider.active.last) { 1606 return; 1607 } 1608 if (slider.working === true) { 1609 return; 1610 } 1611 var pagerIndex = parseInt(slider.active.index) + 1; 1612 el.goToSlide(pagerIndex, 'next'); 1613 }; 1614 1615 /** 1616 * Transitions to the prev slide in the show 1617 */ 1618 el.goToPrevSlide = function () { 1619 // if infiniteLoop is false and last page is showing, disregard call 1620 if (!slider.settings.infiniteLoop && slider.active.index === 0) { 1621 return; 1622 } 1623 if (slider.working === true) { 1624 return; 1625 } 1626 var pagerIndex = parseInt(slider.active.index) - 1; 1627 el.goToSlide(pagerIndex, 'prev'); 1628 }; 1629 1630 /** 1631 * Starts the auto show 1632 * 1633 * @param preventControlUpdate (boolean) 1634 * - if true, auto controls state will not be updated 1635 */ 1636 el.startAuto = function (preventControlUpdate) { 1637 // if an interval already exists, disregard call 1638 if (slider.interval) { 1639 return; 1640 } 1641 // create an interval 1642 slider.interval = setInterval(function () { 1643 if (slider.settings.autoDirection === 'next') { 1644 el.goToNextSlide(); 1645 } else { 1646 el.goToPrevSlide(); 1647 } 1648 }, slider.settings.pause); 1649 //allback for when the auto rotate status changes 1650 slider.settings.onAutoChange.call(el, true); 1651 // if auto controls are displayed and preventControlUpdate is not true 1652 if (slider.settings.autoControls && preventControlUpdate !== true) { 1653 updateAutoControls('stop'); 1654 } 1655 }; 1656 1657 /** 1658 * Stops the auto show 1659 * 1660 * @param preventControlUpdate (boolean) 1661 * - if true, auto controls state will not be updated 1662 */ 1663 el.stopAuto = function (preventControlUpdate) { 1664 // if slider is auto paused, just clear that state 1665 if (slider.autoPaused) slider.autoPaused = false; 1666 // if no interval exists, disregard call 1667 if (!slider.interval) { 1668 return; 1669 } 1670 // clear the interval 1671 clearInterval(slider.interval); 1672 slider.interval = null; 1673 //allback for when the auto rotate status changes 1674 slider.settings.onAutoChange.call(el, false); 1675 // if auto controls are displayed and preventControlUpdate is not true 1676 if (slider.settings.autoControls && preventControlUpdate !== true) { 1677 updateAutoControls('start'); 1678 } 1679 }; 1680 1681 /** 1682 * Returns current slide index (zero-based) 1683 */ 1684 el.getCurrentSlide = function () { 1685 return slider.active.index; 1686 }; 1687 1688 /** 1689 * Returns current slide element 1690 */ 1691 el.getCurrentSlideElement = function () { 1692 return slider.children.eq(slider.active.index); 1693 }; 1694 1695 /** 1696 * Returns a slide element 1697 * @param index (int) 1698 * - The index (zero-based) of the element you want returned. 1699 */ 1700 el.getSlideElement = function (index) { 1701 return slider.children.eq(index); 1702 }; 1703 1704 /** 1705 * Returns number of slides in show 1706 */ 1707 el.getSlideCount = function () { 1708 return slider.children.length; 1709 }; 1710 1711 /** 1712 * Return slider.working variable 1713 */ 1714 el.isWorking = function () { 1715 return slider.working; 1716 }; 1717 1718 /** 1719 * Update all dynamic slider elements 1720 */ 1721 el.redrawSlider = function () { 1722 // resize all children in ratio to new screen size 1723 slider.children.add(el.find('.bx-clone')).outerWidth(getSlideWidth()); 1724 // adjust the height
1725 slider.viewport.css('height', getViewportHeight()); 1726 // update the slide position 1727 if (!slider.settings.ticker) { 1728 setSlidePosition(); 1729 } 1730 // if active.last was true before the screen resize, we want 1731 // to keep it last no matter what screen size we end on 1732 if (slider.active.last) { 1733 slider.active.index = getPagerQty() - 1; 1734 } 1735 // if the active index (page) no longer exists due to the resize, simply set the index as last 1736 if (slider.active.index >= getPagerQty()) { 1737 slider.active.last = true; 1738 } 1739 // if a pager is being displayed and a custom pager is not being used, update it 1740 if (slider.settings.pager && !slider.settings.pagerCustom) { 1741 populatePager(); 1742 updatePagerActive(slider.active.index); 1743 } 1744 if (slider.settings.ariaHidden) { 1745 applyAriaHiddenAttributes(sli
vendor: 2,652 bytes, lines 1745-1822
1745der.active.index * getMoveBy()); 1746 } 1747 }; 1748 1749 /** 1750 * Destroy the current instance of the slider (revert everything back to original state) 1751 */ 1752 el.destroySlider = function () { 1753 // don't do anything if slider has already been destroyed 1754 if (!slider.initialized) { 1755 return; 1756 } 1757 slider.initialized = false; 1758 $('.bx-clone', this).remove(); 1759 slider.children.each(function () { 1760 if ($(this).data('origStyle') !== undefined) { 1761 $(this).attr('style', $(this).data('origStyle')); 1762 } else { 1763 $(this).removeAttr('style'); 1764 } 1765 }); 1766 if ($(this).data('origStyle') !== undefined) { 1767 this.attr('style', $(this).data('origStyle')); 1768 } else { 1769 $(this).removeAttr('style'); 1770 } 1771 $(this).unwrap().unwrap(); 1772 if (slider.controls.el) { 1773 slider.controls.el.remove(); 1774 } 1775 if (slider.controls.next) { 1776 slider.controls.next.remove(); 1777 } 1778 if (slider.controls.prev) { 1779 slider.controls.prev.remove(); 1780 } 1781 if (slider.pagerEl && slider.settings.controls && !slider.settings.pagerCustom) { 1782 slider.pagerEl.remove(); 1783 } 1784 $('.bx-caption', this).remove(); 1785 if (slider.controls.autoEl) { 1786 slider.controls.autoEl.remove(); 1787 } 1788 clearInterval(slider.interval); 1789 if (slider.settings.responsive) { 1790 $(window).off('resize', resizeWindow); 1791 } 1792 if (slider.settings.keyboardEnabled) { 1793 $(document).off('keydown', keyPress); 1794 } 1795 //remove self reference in data 1796 $(this).removeData('bxSlider'); 1797 // remove global window handlers 1798 $(window).off('blur', windowBlurHandler).off('focus', windowFocusHandler); 1799 }; 1800 1801 /** 1802 * Reload the slider (revert all DOM changes, and re-initialize) 1803 */ 1804 el.reloadSlider = function (settings) { 1805 if (settings !== undefined) { 1806 options = settings; 1807 } 1808 el.destroySlider(); 1809 init(); 1810 //store reference to self in order to access public functions later 1811 $(el).data('bxSlider', this); 1812 }; 1813 1814 init(); 1815 1816 $(el).data('bxSlider', this); 1817 1818 // returns the current jQuery object 1819 return this; 1820 }; 1821 1822})(jQuery);
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