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