vendor: 66,496 bytes, lines 1-1588
1/** 2 * bxSlider v4.2.4 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 // make modification to the wrapper (.bx-wrapper) 229 if (!slider.settings.pager && !slider.settings.controls) { 230 slider.viewport.parent().css({ 231 margin: '0 auto 0px' 232 }); 233 } 234 // apply css to all slider children 235 slider.children.css({ 236 float: slider.settings.mode === 'horizontal' ? 'left' : 'none', 237 listStyle: 'none', 238 position: 'relative' 239 }); 240 // apply the calculated width after the float is applied to prevent scrollbar interference 241 slider.children.css('width', getSlideWidth()); 242 // if slideMargin is supplied, add the css 243 if (slider.settings.mode === 'horizontal' && slider.settings.slideMargin > 0) { slider.children.css('marginRight', slider.settings.slideMargin); } 244 if (slider.settings.mode === 'vertical' && slider.settings.slideMargin > 0) { slider.children.css('marginBottom', slider.settings.slideMargin); } 245 // if "fade" mode, add positioning and z-index CSS 246 if (slider.settings.mode === 'fade') { 247 slider.children.css({ 248 position: 'absolute', 249 zIndex: 0, 250 display: 'none' 251 }); 252 // prepare the z-index on the showing element 253 slider.children.eq(slider.settings.startSlide).css({zIndex: slider.settings.slideZIndex, display: 'block'}); 254 } 255 // create an element to contain all slider controls (pager, start / stop, etc) 256 slider.controls.el = $('<div class="bx-controls" />'); 257 // if captions are requested, add them 258 if (slider.settings.captions) { appendCaptions(); } 259 // check if startSlide is last slide 260 slider.active.last = slider.settings.startSlide === getPagerQty() - 1; 261 // if video is true, set up the fitVids plugin 262 if (slider.settings.video) { el.fitVids(); } 263 if (slider.settings.preloadImages === 'all' || slider.settings.ticker) { preloadSelector = slider.children; } 264 // only check for control addition if not in "ticker" mode 265 if (!slider.settings.ticker) { 266 // if controls are requested, add them 267 if (slider.settings.controls) { appendControls(); } 268 // if auto is true, and auto controls are requested, add them 269 if (slider.settings.auto && slider.settings.autoControls) { appendControlsAuto(); } 270 // if pager is requested, add it 271 if (slider.settings.pager) { appendPager(); } 272 // if any control option is requested, add the controls wrapper 273 if (slider.settings.controls || slider.settings.autoControls || slider.settings.pager) { slider.viewport.after(slider.controls.el); } 274 // if ticker mode, do not allow a pager 275 } else { 276 slider.settings.pager = false; 277 } 278 loadElements(preloadSelector, start); 279 }; 280 281 var loadElements = function(selector, callback) { 282 var total = selector.find('img:not([src=""]), iframe').length, 283 count = 0; 284 if (total === 0) { 285 callback(); 286 return; 287 } 288 selector.find('img:not([src=""]), iframe').each(function() { 289 $(this).one('load error', function() { 290 if (++count === total) { callback(); } 291 }).each(function() { 292 if (this.complete) { $(this).load(); } 293 }); 294 }); 295 }; 296 297 /** 298 * Start the slider 299 */ 300 var start = function() { 301 // if infinite loop, prepare additional slides 302 if (slider.settings.infiniteLoop && slider.settings.mode !== 'fade' && !slider.settings.ticker) { 303 var slice = slider.settings.mode === 'vertical' ? slider.settings.minSlides : slider.settings.maxSlides, 304 sliceAppend = slider.children.slice(0, slice).clone(true).addClass('bx-clone'), 305 slicePrepend = slider.children.slice(-slice).clone(true).addClass('bx-clone'); 306 if (slider.settings.ariaHidden) { 307 sliceAppend.attr('aria-hidden', true); 308 slicePrepend.attr('aria-hidden', true); 309 } 310 el.append(sliceAppend).prepend(slicePrepend); 311 } 312 // remove the loading DOM element 313 slider.loader.remove(); 314 // set the left / top position of "el" 315 setSlidePosition(); 316 // if "vertical" mode, always use adaptiveHeight to prevent odd behavior 317 if (slider.settings.mode === 'vertical') { slider.settings.adaptiveHeight = true; } 318 // set the viewport height 319 slider.viewport.height(getViewportHeight()); 320 // make sure everything is positioned just right (same as a window resize) 321 el.redrawSlider(); 322 // onSliderLoad callback 323 slider.settings.onSliderLoad.call(el, slider.active.index); 324 // slider has been fully initialized 325 slider.initialized = true; 326 // bind the resize call to the window 327 if (slider.settings.responsive) { $(window).bind('resize', resizeWindow); } 328 // if auto is true and has more than 1 page, start the show 329 if (slider.settings.auto && slider.settings.autoStart && (getPagerQty() > 1 || slider.settings.autoSlideForOnePage)) { initAuto(); } 330 // if ticker is true, start the ticker 331 if (slider.settings.ticker) { initTicker(); } 332 // if pager is requested, make the appropriate pager link active 333 if (slider.settings.pager) { updatePagerActive(slider.settings.startSlide); } 334 // check for any updates to the controls (like hideControlOnEnd updates) 335 if (slider.settings.controls) { updateDirectionControls(); } 336 // if touchEnabled is true, setup the touch events 337 if (slider.settings.touchEnabled && !slider.settings.ticker) { initTouch(); } 338 // if keyboardEnabled is true, setup the keyboard events 339 if (slider.settings.keyboardEnabled && !slider.settings.ticker) { 340 $(document).keydown(keyPress); 341 } 342 }; 343 344 /** 345 * Returns the calculated height of the viewport, used to determine either adaptiveHeight or the maxHeight value 346 */ 347 var getViewportHeight = function() { 348 var height = el.outerHeight(), 349 currentIndex = null, 350 // first determine which children (slides) should be used in our height calculation 351 children = $(); 352 // if mode is not "vertical" and adaptiveHeight is false, include all children 353 if (slider.settings.mode !== 'vertical' && !slider.settings.adaptiveHeight) { 354 children = slider.children; 355 } else { 356 // if not carousel, return the single active child 357 if (!slider.carousel) { 358 children = slider.children.eq(slider.active.index); 359 // if carousel, return a slice of children 360 } else { 361 // get the individual slide index 362 currentIndex = slider.settings.moveSlides === 1 ? slider.active.index : slider.active.index * getMoveBy(); 363 // add the current slide to the children 364 children = slider.children.eq(currentIndex); 365 // cycle through the remaining "showing" slides 366 for (var i = 1; i <= slider.settings.maxSlides - 1; i++) { 367 // if looped back to the start 368 if (currentIndex + i >= slider.children.length) { 369 children = children.add(slider.children.eq(currentIndex + i - slider.children.length)); 370 } else { 371 children = children.add(slider.children.eq(currentIndex + i)); 372 } 373 } 374 } 375 } 376 // if "vertical" mode, calculate the sum of the heights of the children 377 if (slider.settings.mode === 'vertical') { 378 children.each(function(index) { 379 height += $(this).outerHeight(); 380 }); 381 // add user-supplied margins 382 if (slider.settings.slideMargin > 0) { 383 height += slider.settings.slideMargin * (slider.settings.minSlides - 1); 384 } 385 // if not "vertical" mode, calculate the max height of the children 386 } else { 387 height = Math.max.apply(Math, children.map(function() { 388 return $(this).outerHeight(false); 389 }).get()); 390 } 391 392 if (slider.viewport.css('box-sizing') === 'border-box') { 393 height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')) + 394 parseFloat(slider.viewport.css('border-top-width')) + parseFloat(slider.viewport.css('border-bottom-width')); 395 } else if (slider.viewport.css('box-sizing') === 'padding-box') { 396 height += parseFloat(slider.viewport.css('padding-top')) + parseFloat(slider.viewport.css('padding-bottom')); 397 } 398 399 return height; 400 }; 401 402 /** 403 * Returns the calculated width to be used for the outer wrapper / viewport 404 */ 405 var getViewportMaxWidth = function() { 406 var width = '100%'; 407 if (slider.settings.slideWidth > 0) { 408 if (slider.settings.mode === 'horizontal') { 409 width = (slider.settings.maxSlides * slider.settings.slideWidth) + ((slider.settings.maxSlides - 1) * slider.settings.slideMargin); 410 } else { 411 width = slider.settings.slideWidth; 412 } 413 } 414 return width; 415 }; 416 417 /** 418 * Returns the calculated width to be applied to each slide 419 */ 420 var getSlideWidth = function() { 421 var newElWidth = slider.settings.slideWidth, // start with any user-supplied slide width 422 wrapWidth = slider.viewport.width(); // get the current viewport width 423 // if slide width was not supplied, or is larger than the viewport use the viewport width 424 if (slider.settings.slideWidth === 0 || 425 (slider.settings.slideWidth > wrapWidth && !slider.carousel) || 426 slider.settings.mode === 'vertical') { 427 newElWidth = wrapWidth; 428 // if carousel, use the thresholds to determine the width 429 } else if (slider.settings.maxSlides > 1 && slider.settings.mode === 'horizontal') { 430 if (wrapWidth > slider.maxThreshold) { 431 return newElWidth; 432 } else if (wrapWidth < slider.minThreshold) { 433 newElWidth = (wrapWidth - (slider.settings.slideMargin * (slider.settings.minSlides - 1))) / slider.settings.minSlides; 434 } else if (slider.settings.shrinkItems) { 435 newElWidth = Math.floor((wrapWidth + slider.settings.slideMargin) / (Math.ceil((wrapWidth + slider.settings.slideMargin) / (newElWidth + slider.settings.slideMargin))) - slider.settings.slideMargin); 436 } 437 } 438 return newElWidth; 439 }; 440 441 /** 442 * Returns the number of slides currently visible in the viewport (includes partially visible slides) 443 */ 444 var getNumberSlidesShowing = function() { 445 var slidesShowing = 1, 446 childWidth = null; 447 if (slider.settings.mode === 'horizontal' && slider.settings.slideWidth > 0) { 448 // if viewport is smaller than minThreshold, return minSlides 449 if (slider.viewport.width() < slider.minThreshold) { 450 slidesShowing = slider.settings.minSlides; 451 // if viewport is larger than maxThreshold, return maxSlides 452 } else if (slider.viewport.width() > slider.maxThreshold) { 453 slidesShowing = slider.settings.maxSlides; 454 // if viewport is between min / max thresholds, divide viewport width by first child width 455 } else { 456 childWidth = slider.children.first().width() + slider.settings.slideMargin; 457 slidesShowing = Math.floor((slider.viewport.width() + 458 slider.settings.slideMargin) / childWidth); 459 } 460 // if "vertical" mode, slides showing will always be minSlides 461 } else if (slider.settings.mode === 'vertical') { 462 slidesShowing = slider.settings.minSlides; 463 } 464 return slidesShowing; 465 }; 466 467 /** 468 * Returns the number of pages (one full viewport of slides is one "page") 469 */ 470 var getPagerQty = function() { 471 var pagerQty = 0, 472 breakPoint = 0, 473 counter = 0; 474 // if moveSlides is specified by the user 475 if (slider.settings.moveSlides > 0) { 476 if (slider.settings.infiniteLoop) { 477 pagerQty = Math.ceil(slider.children.length / getMoveBy()); 478 } else { 479 // when breakpoint goes above children length, counter is the number of pages 480 while (breakPoint < slider.children.length) { 481 ++pagerQty; 482 breakPoint = counter + getNumberSlidesShowing(); 483 counter += slider.settings.moveSlides <= getNumberSlidesShowing() ? slider.settings.moveSlides : getNumberSlidesShowing(); 484 } 485 } 486 // if moveSlides is 0 (auto) divide children length by sides showing, then round up 487 } else { 488 pagerQty = Math.ceil(slider.children.length / getNumberSlidesShowing()); 489 } 490 return pagerQty; 491 }; 492 493 /** 494 * Returns the number of individual slides by which to shift the slider 495 */ 496 var getMoveBy = function() { 497 // if moveSlides was set by the user and moveSlides is less than number of slides showing 498 if (slider.settings.moveSlides > 0 && slider.settings.moveSlides <= getNumberSlidesShowing()) { 499 return slider.settings.moveSlides; 500 } 501 // if moveSlides is 0 (auto) 502 return getNumberSlidesShowing(); 503 }; 504 505 /** 506 * Sets the slider's (el) left or top position 507 */ 508 var setSlidePosition = function() { 509 var position, lastChild, lastShowingIndex; 510 // if last slide, not infinite loop, and number of children is larger than specified maxSlides 511 if (slider.children.length > slider.settings.maxSlides && slider.active.last && !slider.settings.infiniteLoop) { 512 if (slider.settings.mode === 'horizontal') { 513 // get the last child's position 514 lastChild = slider.children.last(); 515 position = lastChild.position(); 516 // set the left position 517 setPositionProperty(-(position.left - (slider.viewport.width() - lastChild.outerWidth())), 'reset', 0); 518 } else if (slider.settings.mode === 'vertical') { 519 // get the last showing index's position 520 lastShowingIndex = slider.children.length - slider.settings.minSlides; 521 position = slider.children.eq(lastShowingIndex).position(); 522 // set the top position 523 setPositionProperty(-position.top, 'reset', 0); 524 } 525 // if not last slide 526 } else { 527 // get the position of the first showing slide 528 position = slider.children.eq(slider.active.index * getMoveBy()).position(); 529 // check for last slide 530 if (slider.active.index === getPagerQty() - 1) { slider.active.last = true; } 531 // set the respective position 532 if (position !== undefined) { 533 if (slider.settings.mode === 'horizontal') { setPositionProperty(-position.left, 'reset', 0); } 534 else if (slider.settings.mode === 'vertical') { setPositionProperty(-position.top, 'reset', 0); } 535 } 536 } 537 }; 538 539 /** 540 * Sets the el's animating property position (which in turn will sometimes animate el). 541 * If using CSS, sets the transform property. If not using CSS, sets the top / left property. 542 * 543 * @param value (int) 544 * - the animating property's value 545 * 546 * @param type (string) 'slide', 'reset', 'ticker' 547 * - the type of instance for which the function is being 548 * 549 * @param duration (int) 550 * - the amount of time (in ms) the transition should occupy 551 * 552 * @param params (array) optional 553 * - an optional parameter containing any variables that need to be passed in 554 */ 555 var setPositionProperty = function(value, type, duration, params) { 556 var animateObj, propValue; 557 // use CSS transform 558 if (slider.usingCSS) { 559 // determine the translate3d value 560 propValue = slider.settings.mode === 'vertical' ? 'translate3d(0, ' + value + 'px, 0)' : 'translate3d(' + value + 'px, 0, 0)'; 561 // add the CSS transition-duration 562 el.css('-' + slider.cssPrefix + '-transition-duration', duration / 1000 + 's'); 563 if (type === 'slide') { 564 // set the property value 565 el.css(slider.animProp, propValue); 566 // bind a callback method - executes when CSS transition completes 567 el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(e) { 568 //make sure it's the correct one 569 if (!$(e.target).is(el)) { return; } 570 // unbind the callback 571 el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 572 updateAfterSlideTransition(); 573 }); 574 } else if (type === 'reset') { 575 el.css(slider.animProp, propValue); 576 } else if (type === 'ticker') { 577 // make the transition use 'linear' 578 el.css('-' + slider.cssPrefix + '-transition-timing-function', 'linear'); 579 el.css(slider.animProp, propValue); 580 // bind a callback method - executes when CSS transition completes 581 el.bind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd', function(e) { 582 //make sure it's the correct one 583 if (!$(e.target).is(el)) { return; } 584 // unbind the callback 585 el.unbind('transitionend webkitTransitionEnd oTransitionEnd MSTransitionEnd'); 586 // reset the position 587 setPositionProperty(params.resetValue, 'reset', 0); 588 // start the loop again 589 tickerLoop(); 590 }); 591 } 592 // use JS animate 593 } else { 594 animateObj = {}; 595 animateObj[slider.animProp] = value; 596 if (type === 'slide') { 597 el.animate(animateObj, duration, slider.settings.easing, function() { 598 updateAfterSlideTransition(); 599 }); 600 } else if (type === 'reset') { 601 el.css(slider.animProp, value); 602 } else if (type === 'ticker') { 603 el.animate(animateObj, duration, 'linear', function() { 604 setPositionProperty(params.resetValue, 'reset', 0); 605 // run the recursive loop after animation 606 tickerLoop(); 607 }); 608 } 609 } 610 }; 611 612 /** 613 * Populates the pager with proper amount of pages 614 */ 615 var populatePager = function() { 616 var pagerHtml = '', 617 linkContent = '', 618 pagerQty = getPagerQty(); 619 // loop through each pager item 620 for (var i = 0; i < pagerQty; i++) { 621 linkContent = ''; 622 // if a buildPager function is supplied, use it to get pager link value, else use index + 1 623 if (slider.settings.buildPager && $.isFunction(slider.settings.buildPager) || slider.settings.pagerCustom) { 624 linkContent = slider.settings.buildPager(i); 625 slider.pagerEl.addClass('bx-custom-pager'); 626 } else { 627 linkContent = i + 1; 628 slider.pagerEl.addClass('bx-default-pager'); 629 } 630 // var linkContent = slider.settings.buildPager && $.isFunction(slider.settings.buildPager) ? slider.settings.buildPager(i) : i + 1; 631 // add the markup to the string 632 pagerHtml += '<div class="bx-pager-item"><a href="" data-slide-index="' + i + '" class="bx-pager-link">' + linkContent + '</a></div>'; 633 } 634 // populate the pager element with pager links 635 slider.pagerEl.html(pagerHtml); 636 }; 637 638 /** 639 * Appends the pager to the controls element 640 */ 641 var appendPager = function() { 642 if (!slider.settings.pagerCustom) { 643 // create the pager DOM element 644 slider.pagerEl = $('<div class="bx-pager" />'); 645 // if a pager selector was supplied, populate it with the pager 646 if (slider.settings.pagerSelector) { 647 $(slider.settings.pagerSelector).html(slider.pagerEl); 648 // if no pager selector was supplied, add it after the wrapper 649 } else { 650 slider.controls.el.addClass('bx-has-pager').append(slider.pagerEl); 651 } 652 // populate the pager 653 populatePager(); 654 } else { 655 slider.pagerEl = $(slider.settings.pagerCustom); 656 } 657 // assign the pager click binding 658 slider.pagerEl.on('click touchend', 'a', clickPagerBind); 659 }; 660 661 /** 662 * Appends prev / next controls to the controls element 663 */ 664 var appendControls = function() { 665 slider.controls.next = $('<a class="bx-next" href="">' + slider.settings.nextText + '</a>'); 666 slider.controls.prev = $('<a class="bx-prev" href="">' + slider.settings.prevText + '</a>'); 667 // bind click actions to the controls 668 slider.controls.next.bind('click touchend', clickNextBind); 669 slider.controls.prev.bind('click touchend', clickPrevBind); 670 // if nextSelector was supplied, populate it 671 if (slider.settings.nextSelector) { 672 $(slider.settings.nextSelector).append(slider.controls.next); 673 } 674 // if prevSelector was supplied, populate it 675 if (slider.settings.prevSelector) { 676 $(slider.settings.prevSelector).append(slider.controls.prev); 677 } 678 // if no custom selectors were supplied 679 if (!slider.settings.nextSelector && !slider.settings.prevSelector) { 680 // add the controls to the DOM 681 slider.controls.directionEl = $('<div class="bx-controls-direction" />'); 682 // add the control elements to the directionEl 683 slider.controls.directionEl.append(slider.controls.prev).append(slider.controls.next); 684 // slider.viewport.append(slider.controls.directionEl); 685 slider.controls.el.addClass('bx-has-controls-direction').append(slider.controls.directionEl); 686 } 687 }; 688 689 /** 690 * Appends start / stop auto controls to the controls element 691 */ 692 var appendControlsAuto = function() { 693 slider.controls.start = $('<div class="bx-controls-auto-item"><a class="bx-start" href="">' + slider.settings.startText + '</a></div>'); 694 slider.controls.stop = $('<div class="bx-controls-auto-item"><a class="bx-stop" href="">' + slider.settings.stopText + '</a></div>'); 695 // add the controls to the DOM 696 slider.controls.autoEl = $('<div class="bx-controls-auto" />'); 697 // bind click actions to the controls 698 slider.controls.autoEl.on('click', '.bx-start', clickStartBind); 699 slider.controls.autoEl.on('click', '.bx-stop', clickStopBind); 700 // if autoControlsCombine, insert only the "start" control 701 if (slider.settings.autoControlsCombine) { 702 slider.controls.autoEl.append(slider.controls.start); 703 // if autoControlsCombine is false, insert both controls 704 } else { 705 slider.controls.autoEl.append(slider.controls.start).append(slider.controls.stop); 706 } 707 // if auto controls selector was supplied, populate it with the controls 708 if (slider.settings.autoControlsSelector) { 709 $(slider.settings.autoControlsSelector).html(slider.controls.autoEl); 710 // if auto controls selector was not supplied, add it after the wrapper 711 } else { 712 slider.controls.el.addClass('bx-has-controls-auto').append(slider.controls.autoEl); 713 } 714 // update the auto controls 715 updateAutoControls(slider.settings.autoStart ? 'stop' : 'start'); 716 }; 717 718 /** 719 * Appends image captions to the DOM 720 */ 721 var appendCaptions = function() { 722 // cycle through each child 723 slider.children.each(function(index) { 724 // get the image title attribute 725 var title = $(this).find('img:first').attr('title'); 726 // append the caption 727 if (title !== undefined && ('' + title).length) { 728 $(this).append('<div class="bx-caption"><span>' + title + '</span></div>'); 729 } 730 }); 731 }; 732 733 /** 734 * Click next binding 735 * 736 * @param e (event) 737 * - DOM event object 738 */ 739 var clickNextBind = function(e) { 740 e.preventDefault(); 741 if (slider.controls.el.hasClass('disabled')) { return; } 742 // if auto show is running, stop it 743 if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } 744 el.goToNextSlide(); 745 }; 746 747 /** 748 * Click prev binding 749 * 750 * @param e (event) 751 * - DOM event object 752 */ 753 var clickPrevBind = function(e) { 754 e.preventDefault(); 755 if (slider.controls.el.hasClass('disabled')) { return; } 756 // if auto show is running, stop it 757 if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } 758 el.goToPrevSlide(); 759 }; 760 761 /** 762 * Click start binding 763 * 764 * @param e (event) 765 * - DOM event object 766 */ 767 var clickStartBind = function(e) { 768 el.startAuto(); 769 e.preventDefault(); 770 }; 771 772 /** 773 * Click stop binding 774 * 775 * @param e (event) 776 * - DOM event object 777 */ 778 var clickStopBind = function(e) { 779 el.stopAuto(); 780 e.preventDefault(); 781 }; 782 783 /** 784 * Click pager binding 785 * 786 * @param e (event) 787 * - DOM event object 788 */ 789 var clickPagerBind = function(e) { 790 var pagerLink, pagerIndex; 791 e.preventDefault(); 792 if (slider.controls.el.hasClass('disabled')) { 793 return; 794 } 795 // if auto show is running, stop it 796 if (slider.settings.auto && slider.settings.stopAutoOnClick) { el.stopAuto(); } 797 pagerLink = $(e.currentTarget); 798 if (pagerLink.attr('data-slide-index') !== undefined) { 799 pagerIndex = parseInt(pagerLink.attr('data-slide-index')); 800 // if clicked pager link is not active, continue with the goToSlide call 801 if (pagerIndex !== slider.active.index) { el.goToSlide(pagerIndex); } 802 } 803 }; 804 805 /** 806 * Updates the pager links with an active class 807 * 808 * @param slideIndex (int) 809 * - index of slide to make active 810 */ 811 var updatePagerActive = function(slideIndex) { 812 // if "short" pager type 813 var len = slider.children.length; // nb of children 814 if (slider.settings.pagerType === 'short') { 815 if (slider.settings.maxSlides > 1) { 816 len = Math.ceil(slider.children.length / slider.settings.maxSlides); 817 } 818 slider.pagerEl.html((slideIndex + 1) + slider.settings.pagerShortSeparator + len); 819 return; 820 } 821 // remove all pager active classes 822 slider.pagerEl.find('a').removeClass('active'); 823 // apply the active class for all pagers 824 slider.pagerEl.each(function(i, el) { $(el).find('a').eq(slideIndex).addClass('active'); }); 825 }; 826 827 /** 828 * Performs needed actions after a slide transition 829 */ 830 var updateAfterSlideTransition = function() { 831 // if infinite loop is true 832 if (slider.settings.infiniteLoop) { 833 var position = ''; 834 // first slide 835 if (slider.active.index === 0) { 836 // set the new position 837 position = slider.children.eq(0).position(); 838 // carousel, last slide 839 } else if (slider.active.index === getPagerQty() - 1 && slider.carousel) { 840 position = slider.children.eq((getPagerQty() - 1) * getMoveBy()).position(); 841 // last slide 842 } else if (slider.active.index === slider.children.length - 1) { 843 position = slider.children.eq(slider.children.length - 1).position(); 844 } 845 if (position) { 846 if (slider.settings.mode === 'horizontal') { setPositionProperty(-position.left, 'reset', 0); } 847 else if (slider.settings.mode === 'vertical') { setPositionProperty(-position.top, 'reset', 0); } 848 } 849 } 850 // declare that the transition is complete 851 slider.working = false; 852 // onSlideAfter callback 853 slider.settings.onSlideAfter.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 854 }; 855 856 /** 857 * Updates the auto controls state (either active, or combined switch) 858 * 859 * @param state (string) "start", "stop" 860 * - the new state of the auto show 861 */ 862 var updateAutoControls = function(state) { 863 // if autoControlsCombine is true, replace the current control with the new state 864 if (slider.settings.autoControlsCombine) { 865 slider.controls.autoEl.html(slider.controls[state]); 866 // if autoControlsCombine is false, apply the "active" class to the appropriate control 867 } else { 868 slider.controls.autoEl.find('a').removeClass('active'); 869 slider.controls.autoEl.find('a:not(.bx-' + state + ')').addClass('active'); 870 } 871 }; 872 873 /** 874 * Updates the direction controls (checks if either should be hidden) 875 */ 876 var updateDirectionControls = function() { 877 if (getPagerQty() === 1) { 878 slider.controls.prev.addClass('disabled'); 879 slider.controls.next.addClass('disabled'); 880 } else if (!slider.settings.infiniteLoop && slider.settings.hideControlOnEnd) { 881 // if first slide 882 if (slider.active.index === 0) { 883 slider.controls.prev.addClass('disabled'); 884 slider.controls.next.removeClass('disabled'); 885 // if last slide 886 } else if (slider.active.index === getPagerQty() - 1) { 887 slider.controls.next.addClass('disabled'); 888 slider.controls.prev.removeClass('disabled'); 889 // if any slide in the middle 890 } else { 891 slider.controls.prev.removeClass('disabled'); 892 slider.controls.next.removeClass('disabled'); 893 } 894 } 895 }; 896 897 /** 898 * Initializes the auto process 899 */ 900 var initAuto = function() { 901 // if autoDelay was supplied, launch the auto show using a setTimeout() call 902 if (slider.settings.autoDelay > 0) { 903 var timeout = setTimeout(el.startAuto, slider.settings.autoDelay); 904 // if autoDelay was not supplied, start the auto show normally 905 } else { 906 el.startAuto(); 907 908 //add focus and blur events to ensure its running if timeout gets paused 909 $(window).focus(function() { 910 el.startAuto(); 911 }).blur(function() { 912 el.stopAuto(); 913 }); 914 } 915 // if autoHover is requested 916 if (slider.settings.autoHover) { 917 // on el hover 918 el.hover(function() { 919 // if the auto show is currently playing (has an active interval) 920 if (slider.interval) { 921 // stop the auto show and pass true argument which will prevent control update 922 el.stopAuto(true); 923 // create a new autoPaused value which will be used by the relative "mouseout" event 924 slider.autoPaused = true; 925 } 926 }, function() { 927 // if the autoPaused value was created be the prior "mouseover" event 928 if (slider.autoPaused) { 929 // start the auto show and pass true argument which will prevent control update 930 el.startAuto(true); 931 // reset the autoPaused value 932 slider.autoPaused = null; 933 } 934 }); 935 } 936 }; 937 938 /** 939 * Initializes the ticker process 940 */ 941 var initTicker = function() { 942 var startPosition = 0, 943 position, transform, value, idx, ratio, property, newSpeed, totalDimens; 944 // if autoDirection is "next", append a clone of the entire slider 945 if (slider.settings.autoDirection === 'next') { 946 el.append(slider.children.clone().addClass('bx-clone')); 947 // if autoDirection is "prev", prepend a clone of the entire slider, and set the left position 948 } else { 949 el.prepend(slider.children.clone().addClass('bx-clone')); 950 position = slider.children.first().position(); 951 startPosition = slider.settings.mode === 'horizontal' ? -position.left : -position.top; 952 } 953 setPositionProperty(startPosition, 'reset', 0); 954 // do not allow controls in ticker mode 955 slider.settings.pager = false; 956 slider.settings.controls = false; 957 slider.settings.autoControls = false; 958 // if autoHover is requested 959 if (slider.settings.tickerHover) { 960 if (slider.usingCSS) { 961 idx = slider.settings.mode === 'horizontal' ? 4 : 5; 962 slider.viewport.hover(function() { 963 transform = el.css('-' + slider.cssPrefix + '-transform'); 964 value = parseFloat(transform.split(',')[idx]); 965 setPositionProperty(value, 'reset', 0); 966 }, function() { 967 totalDimens = 0; 968 slider.children.each(function(index) { 969 totalDimens += slider.settings.mode === 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true); 970 }); 971 // calculate the speed ratio (used to determine the new speed to finish the paused animation) 972 ratio = slider.settings.speed / totalDimens; 973 // determine which property to use 974 property = slider.settings.mode === 'horizontal' ? 'left' : 'top'; 975 // calculate the new speed 976 newSpeed = ratio * (totalDimens - (Math.abs(parseInt(value)))); 977 tickerLoop(newSpeed); 978 }); 979 } else { 980 // on el hover 981 slider.viewport.hover(function() { 982 el.stop(); 983 }, function() { 984 // calculate the total width of children (used to calculate the speed ratio) 985 totalDimens = 0; 986 slider.children.each(function(index) { 987 totalDimens += slider.settings.mode === 'horizontal' ? $(this).outerWidth(true) : $(this).outerHeight(true); 988 }); 989 // calculate the speed ratio (used to determine the new speed to finish the paused animation) 990 ratio = slider.settings.speed / totalDimens; 991 // determine which property to use 992 property = slider.settings.mode === 'horizontal' ? 'left' : 'top'; 993 // calculate the new speed 994 newSpeed = ratio * (totalDimens - (Math.abs(parseInt(el.css(property))))); 995 tickerLoop(newSpeed); 996 }); 997 } 998 } 999 // start the ticker loop 1000 tickerLoop(); 1001 }; 1002 1003 /** 1004 * Runs a continuous loop, news ticker-style 1005 */ 1006 var tickerLoop = function(resumeSpeed) { 1007 var speed = resumeSpeed ? resumeSpeed : slider.settings.speed, 1008 position = {left: 0, top: 0}, 1009 reset = {left: 0, top: 0}, 1010 animateProperty, resetValue, params; 1011 1012 // if "next" animate left position to last child, then reset left to 0 1013 if (slider.settings.autoDirection === 'next') { 1014 position = el.find('.bx-clone').first().position(); 1015 // if "prev" animate left position to 0, then reset left to first non-clone child 1016 } else { 1017 reset = slider.children.first().position(); 1018 } 1019 animateProperty = slider.settings.mode === 'horizontal' ? -position.left : -position.top; 1020 resetValue = slider.settings.mode === 'horizontal' ? -reset.left : -reset.top; 1021 params = {resetValue: resetValue}; 1022 setPositionProperty(animateProperty, 'ticker', speed, params); 1023 }; 1024 1025 /** 1026 * Check if el is on screen 1027 */ 1028 var isOnScreen = function(el) { 1029 var win = $(window), 1030 viewport = { 1031 top: win.scrollTop(), 1032 left: win.scrollLeft() 1033 }, 1034 bounds = el.offset(); 1035 1036 viewport.right = viewport.left + win.width(); 1037 viewport.bottom = viewport.top + win.height(); 1038 bounds.right = bounds.left + el.outerWidth(); 1039 bounds.bottom = bounds.top + el.outerHeight(); 1040 1041 return (!(viewport.right < bounds.left || viewport.left > bounds.right || viewport.bottom < bounds.top || viewport.top > bounds.bottom)); 1042 }; 1043 1044 /** 1045 * Initializes keyboard events 1046 */ 1047 var keyPress = function(e) { 1048 var activeElementTag = document.activeElement.tagName.toLowerCase(), 1049 tagFilters = 'input|textarea', 1050 p = new RegExp(activeElementTag,['i']), 1051 result = p.exec(tagFilters); 1052 1053 if (result == null && isOnScreen(el)) { 1054 if (e.keyCode === 39) { 1055 clickNextBind(e); 1056 return false; 1057 } else if (e.keyCode === 37) { 1058 clickPrevBind(e); 1059 return false; 1060 } 1061 } 1062 }; 1063 1064 /** 1065 * Initializes touch events 1066 */ 1067 var initTouch = function() { 1068 // initialize object to contain all touch values 1069 slider.touch = { 1070 start: {x: 0, y: 0}, 1071 end: {x: 0, y: 0} 1072 }; 1073 slider.viewport.bind('touchstart MSPointerDown pointerdown', onTouchStart); 1074 1075 //for browsers that have implemented pointer events and fire a click after 1076 //every pointerup regardless of whether pointerup is on same screen location as pointerdown or not 1077 slider.viewport.on('click', '.bxslider a', function(e) { 1078 if (slider.viewport.hasClass('click-disabled')) { 1079 e.preventDefault(); 1080 slider.viewport.removeClass('click-disabled'); 1081 } 1082 }); 1083 }; 1084 1085 /** 1086 * Event handler for "touchstart" 1087 * 1088 * @param e (event) 1089 * - DOM event object 1090 */ 1091 var onTouchStart = function(e) { 1092 //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 1093 slider.controls.el.addClass('disabled'); 1094 1095 if (slider.working) { 1096 e.preventDefault(); 1097 slider.controls.el.removeClass('disabled'); 1098 } else { 1099 // record the original position when touch starts 1100 slider.touch.originalPos = el.position(); 1101 var orig = e.originalEvent, 1102 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig]; 1103 // record the starting touch x, y coordinates 1104 slider.touch.start.x = touchPoints[0].pageX; 1105 slider.touch.start.y = touchPoints[0].pageY; 1106 1107 if (slider.viewport.get(0).setPointerCapture) { 1108 slider.pointerId = orig.pointerId; 1109 slider.viewport.get(0).setPointerCapture(slider.pointerId); 1110 } 1111 // bind a "touchmove" event to the viewport 1112 slider.viewport.bind('touchmove MSPointerMove pointermove', onTouchMove); 1113 // bind a "touchend" event to the viewport 1114 slider.viewport.bind('touchend MSPointerUp pointerup', onTouchEnd); 1115 slider.viewport.bind('MSPointerCancel pointercancel', onPointerCancel); 1116 } 1117 }; 1118 1119 /** 1120 * Cancel Pointer for Windows Phone 1121 * 1122 * @param e (event) 1123 * - DOM event object 1124 */ 1125 var onPointerCancel = function(e) { 1126 /* onPointerCancel handler is needed to deal with situations when a touchend 1127 doesn't fire after a touchstart (this happens on windows phones only) */ 1128 setPositionProperty(slider.touch.originalPos.left, 'reset', 0); 1129 1130 //remove handlers 1131 slider.controls.el.removeClass('disabled'); 1132 slider.viewport.unbind('MSPointerCancel pointercancel', onPointerCancel); 1133 slider.viewport.unbind('touchmove MSPointerMove pointermove', onTouchMove); 1134 slider.viewport.unbind('touchend MSPointerUp pointerup', onTouchEnd); 1135 if (slider.viewport.get(0).releasePointerCapture) { 1136 slider.viewport.get(0).releasePointerCapture(slider.pointerId); 1137 } 1138 }; 1139 1140 /** 1141 * Event handler for "touchmove" 1142 * 1143 * @param e (event) 1144 * - DOM event object 1145 */ 1146 var onTouchMove = function(e) { 1147 var orig = e.originalEvent, 1148 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig], 1149 // if scrolling on y axis, do not prevent default 1150 xMovement = Math.abs(touchPoints[0].pageX - slider.touch.start.x), 1151 yMovement = Math.abs(touchPoints[0].pageY - slider.touch.start.y), 1152 value = 0, 1153 change = 0; 1154 1155 // x axis swipe 1156 if ((xMovement * 3) > yMovement && slider.settings.preventDefaultSwipeX) { 1157 e.preventDefault(); 1158 // y axis swipe 1159 } else if ((yMovement * 3) > xMovement && slider.settings.preventDefaultSwipeY) { 1160 e.preventDefault(); 1161 } 1162 if (slider.settings.mode !== 'fade' && slider.settings.oneToOneTouch) { 1163 // if horizontal, drag along x axis 1164 if (slider.settings.mode === 'horizontal') { 1165 change = touchPoints[0].pageX - slider.touch.start.x; 1166 value = slider.touch.originalPos.left + change; 1167 // if vertical, drag along y axis 1168 } else { 1169 change = touchPoints[0].pageY - slider.touch.start.y; 1170 value = slider.touch.originalPos.top + change; 1171 } 1172 setPositionProperty(value, 'reset', 0); 1173 } 1174 }; 1175 1176 /** 1177 * Event handler for "touchend" 1178 * 1179 * @param e (event) 1180 * - DOM event object 1181 */ 1182 var onTouchEnd = function(e) { 1183 slider.viewport.unbind('touchmove MSPointerMove pointermove', onTouchMove); 1184 //enable slider controls as soon as user stops interacing with slides 1185 slider.controls.el.removeClass('disabled'); 1186 var orig = e.originalEvent, 1187 touchPoints = (typeof orig.changedTouches !== 'undefined') ? orig.changedTouches : [orig], 1188 value = 0, 1189 distance = 0; 1190 // record end x, y positions 1191 slider.touch.end.x = touchPoints[0].pageX; 1192 slider.touch.end.y = touchPoints[0].pageY; 1193 // if fade mode, check if absolute x distance clears the threshold 1194 if (slider.settings.mode === 'fade') { 1195 distance = Math.abs(slider.touch.start.x - slider.touch.end.x); 1196 if (distance >= slider.settings.swipeThreshold) { 1197 if (slider.touch.start.x > slider.touch.end.x) { 1198 el.goToNextSlide(); 1199 } else { 1200 el.goToPrevSlide(); 1201 } 1202 el.stopAuto(); 1203 } 1204 // not fade mode 1205 } else { 1206 // calculate distance and el's animate property 1207 if (slider.settings.mode === 'horizontal') { 1208 distance = slider.touch.end.x - slider.touch.start.x; 1209 value = slider.touch.originalPos.left; 1210 } else { 1211 distance = slider.touch.end.y - slider.touch.start.y; 1212 value = slider.touch.originalPos.top; 1213 } 1214 // if not infinite loop and first / last slide, do not attempt a slide transition 1215 if (!slider.settings.infiniteLoop && ((slider.active.index === 0 && distance > 0) || (slider.active.last && distance < 0))) { 1216 setPositionProperty(value, 'reset', 200); 1217 } else { 1218 // check if distance clears threshold 1219 if (Math.abs(distance) >= slider.settings.swipeThreshold) { 1220 if (distance < 0) { 1221 el.goToNextSlide(); 1222 } else { 1223 el.goToPrevSlide(); 1224 } 1225 el.stopAuto(); 1226 } else { 1227 // el.animate(property, 200); 1228 setPositionProperty(value, 'reset', 200); 1229 } 1230 } 1231 } 1232 slider.viewport.unbind('touchend MSPointerUp pointerup', onTouchEnd); 1233 if (slider.viewport.get(0).releasePointerCapture) { 1234 slider.viewport.get(0).releasePointerCapture(slider.pointerId); 1235 } 1236 }; 1237 1238 /** 1239 * Window resize event callback 1240 */ 1241 var resizeWindow = function(e) { 1242 // don't do anything if slider isn't initialized. 1243 if (!slider.initialized) { return; } 1244 // Delay if slider working. 1245 if (slider.working) { 1246 window.setTimeout(resizeWindow, 10); 1247 } else { 1248 // get the new window dimens (again, thank you IE) 1249 var windowWidthNew = $(window).width(), 1250 windowHeightNew = $(window).height(); 1251 // make sure that it is a true window resize 1252 // *we must check this because our dinosaur friend IE fires a window resize event when certain DOM elements 1253 // are resized. Can you just die already?* 1254 if (windowWidth !== windowWidthNew || windowHeight !== windowHeightNew) { 1255 // set the new window dimens 1256 windowWidth = windowWidthNew; 1257 windowHeight = windowHeightNew; 1258 // update all dynamic elements 1259 el.redrawSlider(); 1260 // Call user resize handler 1261 slider.settings.onSliderResize.call(el, slider.active.index); 1262 } 1263 } 1264 }; 1265 1266 /** 1267 * Adds an aria-hidden=true attribute to each element 1268 * 1269 * @param startVisibleIndex (int) 1270 * - the first visible element's index 1271 */ 1272 var applyAriaHiddenAttributes = function(startVisibleIndex) { 1273 var numberOfSlidesShowing = getNumberSlidesShowing(); 1274 // only apply attributes if the setting is enabled and not in ticker mode 1275 if (slider.settings.ariaHidden && !slider.settings.ticker) { 1276 // add aria-hidden=true to all elements 1277 slider.children.attr('aria-hidden', 'true'); 1278 // get the visible elements and change to aria-hidden=false 1279 slider.children.slice(startVisibleIndex, startVisibleIndex + numberOfSlidesShowing).attr('aria-hidden', 'false'); 1280 } 1281 }; 1282 1283 /** 1284 * =================================================================================== 1285 * = PUBLIC FUNCTIONS 1286 * =================================================================================== 1287 */ 1288 1289 /** 1290 * Performs slide transition to the specified slide 1291 * 1292 * @param slideIndex (int) 1293 * - the destination slide's index (zero-based) 1294 * 1295 * @param direction (string) 1296 * - INTERNAL USE ONLY - the direction of travel ("prev" / "next") 1297 */ 1298 el.goToSlide = function(slideIndex, direction) { 1299 // onSlideBefore, onSlideNext, onSlidePrev callbacks 1300 // Allow transition canceling based on returned value 1301 var performTransition = true, 1302 moveBy = 0, 1303 position = {left: 0, top: 0}, 1304 lastChild = null, 1305 lastShowingIndex, eq, value, requestEl; 1306 1307 // if plugin is currently in motion, ignore request 1308 if (slider.working || slider.active.index === slideIndex) { return; } 1309 // declare that plugin is in motion 1310 slider.working = true; 1311 // store the old index 1312 slider.oldIndex = slider.active.index; 1313 // if slideIndex is less than zero, set active index to last child (this happens during infinite loop) 1314 if (slideIndex < 0) { 1315 slider.active.index = getPagerQty() - 1; 1316 // if slideIndex is greater than children length, set active index to 0 (this happens during infinite loop) 1317 } else if (slideIndex >= getPagerQty()) { 1318 slider.active.index = 0; 1319 // set active index to requested slide 1320 } else { 1321 slider.active.index = slideIndex; 1322 } 1323 1324 performTransition = slider.settings.onSlideBefore.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index); 1325 1326 if (typeof (performTransition) !== 'undefined' && !performTransition) { 1327 slider.active.index = slider.oldIndex; // restore old index 1328 slider.working = false; // is not in motion 1329 return; 1330 } 1331 if (direction === 'next') { 1332 // Prevent canceling in future functions or lack there-of from negating previous commands to cancel 1333 if (!slider.settings.onSlideNext.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) { 1334 performTransition = false; 1335 } 1336 } else if (direction === 'prev') { 1337 // Prevent canceling in future functions or lack there-of from negating previous commands to cancel 1338 if (!slider.settings.onSlidePrev.call(el, slider.children.eq(slider.active.index), slider.oldIndex, slider.active.index)) { 1339 performTransition = false; 1340 } 1341 } 1342 1343 // If transitions canceled, reset and return 1344 if (typeof (performTransition) !== 'undefined' && !performTransition) { 1345 slider.active.index = slider.oldIndex; // restore old index 1346 slider.working = false; // is not in motion 1347 return; 1348 } 1349 1350 // check if last slide 1351 slider.active.last = slider.active.index >= getPagerQty() - 1; 1352 // update the pager with active class 1353 if (slider.settings.pager || slider.settings.pagerCustom) { updatePagerActive(slider.active.index); } 1354 // // check for direction control update 1355 if (slider.settings.controls) { updateDirectionControls(); } 1356 // if slider is set to mode: "fade" 1357 if (slider.settings.mode === 'fade') { 1358 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1359 if (slider.settings.adaptiveHeight && slider.viewport.height() !== getViewportHeight()) { 1360 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1361 } 1362 // fade out the visible child and reset its z-index value 1363 slider.children.filter(':visible').fadeOut(slider.settings.speed).css({zIndex: 0}); 1364 // fade in the newly requested slide 1365 slider.children.eq(slider.active.index).css('zIndex', slider.settings.slideZIndex + 1).fadeIn(slider.settings.speed, function() { 1366 $(this).css('zIndex', slider.settings.slideZIndex); 1367 updateAfterSlideTransition(); 1368 }); 1369 // slider mode is not "fade" 1370 } else { 1371 // if adaptiveHeight is true and next height is different from current height, animate to the new height 1372 if (slider.settings.adaptiveHeight && slider.viewport.height() !== getViewportHeight()) { 1373 slider.viewport.animate({height: getViewportHeight()}, slider.settings.adaptiveHeightSpeed); 1374 } 1375 // if carousel and not infinite loop 1376 if (!slider.settings.infiniteLoop && slider.carousel && slider.active.last) { 1377 if (slider.settings.mode === 'horizontal') { 1378 // get the last child position 1379 lastChild = slider.children.eq(slider.children.length - 1); 1380 position = lastChild.position(); 1381 // calculate the position of the last slide 1382 moveBy = slider.viewport.width() - lastChild.outerWidth(); 1383 } else { 1384 // get last showing index position 1385 lastShowingIndex = slider.children.length - slider.settings.minSlides; 1386 position = slider.children.eq(lastShowingIndex).position(); 1387 } 1388 // horizontal carousel, going previous while on first slide (infiniteLoop mode) 1389 } else if (slider.carousel && slider.active.last && direction === 'prev') { 1390 // get the last child position 1391 eq = slider.settings.moveSlides === 1 ? slider.settings.maxSlides - getMoveBy() : ((getPagerQty() - 1) * getMoveBy()) - (slider.children.length - slider.settings.maxSlides); 1392 lastChild = el.children('.bx-clone').eq(eq); 1393 position = lastChild.position(); 1394 // if infinite loop and "Next" is clicked on the last slide 1395 } else if (direction === 'next' && slider.active.index === 0) { 1396 // get the last clone position 1397 position = el.find('> .bx-clone').eq(slider.settings.maxSlides).position(); 1398 slider.active.last = false; 1399 // normal non-zero requests 1400 } else if (slideIndex >= 0) { 1401 requestEl = slideIndex * getMoveBy(); 1402 position = slider.children.eq(requestEl).position(); 1403 } 1404 1405 /* If the position doesn't exist 1406 * (e.g. if you destroy the slider on a next click), 1407 * it doesn't throw an error. 1408 */ 1409 if (typeof (position) !== undefined) { 1410 value = slider.settings.mode === 'horizontal' ? -(position.left - moveBy) : -position.top; 1411 // plugin values to be animated 1412 setPositionProperty(value, 'slide', slider.settings.speed); 1413 } 1414 } 1415 if (slider.settings.ariaHidden) { applyAriaHiddenAttributes(slider.active.index * getMoveBy()); } 1416 }; 1417 1418 /** 1419 * Transitions to the next slide in the show 1420 */ 1421 el.goToNextSlide = function() { 1422 // if infiniteLoop is false and last page is showing, disregard call 1423 if (!slider.settings.infiniteLoop && slider.active.last) { return; } 1424 var pagerIndex = parseInt(slider.active.index) + 1; 1425 el.goToSlide(pagerIndex, 'next'); 1426 }; 1427 1428 /** 1429 * Transitions to the prev slide in the show 1430 */ 1431 el.goToPrevSlide = function() { 1432 // if infiniteLoop is false and last page is showing, disregard call 1433 if (!slider.settings.infiniteLoop && slider.active.index === 0) { return; } 1434 var pagerIndex = parseInt(slider.active.index) - 1; 1435 el.goToSlide(pagerIndex, 'prev'); 1436 }; 1437 1438 /** 1439 * Starts the auto show 1440 * 1441 * @param preventControlUpdate (boolean) 1442 * - if true, auto controls state will not be updated 1443 */ 1444 el.startAuto = function(preventControlUpdate) { 1445 // if an interval already exists, disregard call 1446 if (slider.interval) { return; } 1447 // create an interval 1448 slider.interval = setInterval(function() { 1449 if (slider.settings.autoDirection === 'next') { 1450 el.goToNextSlide(); 1451 } else { 1452 el.goToPrevSlide(); 1453 } 1454 }, slider.settings.pause); 1455 // if auto controls are displayed and preventControlUpdate is not true 1456 if (slider.settings.autoControls && preventControlUpdate !== true) { updateAutoControls('stop'); } 1457 }; 1458 1459 /** 1460 * Stops the auto show 1461 * 1462 * @param preventControlUpdate (boolean) 1463 * - if true, auto controls state will not be updated 1464 */ 1465 el.stopAuto = function(preventControlUpdate) { 1466 // if no interval exists, disregard call 1467 if (!slider.interval) { return; } 1468 // clear the interval 1469 clearInterval(slider.interval); 1470 slider.interval = null; 1471 // if auto controls are displayed and preventControlUpdate is not true 1472 if (slider.settings.autoControls && preventControlUpdate !== true) { updateAutoControls('start'); } 1473 }; 1474 1475 /** 1476 * Returns current slide index (zero-based) 1477 */ 1478 el.getCurrentSlide = function() { 1479 return slider.active.index; 1480 }; 1481 1482 /** 1483 * Returns current slide element 1484 */ 1485 el.getCurrentSlideElement = function() { 1486 return slider.children.eq(slider.active.index); 1487 }; 1488 1489 /** 1490 * Returns a slide element 1491 * @param index (int) 1492 * - The index (zero-based) of the element you want returned. 1493 */ 1494 el.getSlideElement = function(index) { 1495 return slider.children.eq(index); 1496 }; 1497 1498 /** 1499 * Returns number of slides in show 1500 */ 1501 el.getSlideCount = function() { 1502 return slider.children.length; 1503 }; 1504 1505 /** 1506 * Return slider.working variable 1507 */ 1508 el.isWorking = function() { 1509 return slider.working; 1510 }; 1511 1512 /** 1513 * Update all dynamic slider elements 1514 */ 1515 el.redrawSlider = function() { 1516 // resize all children in ratio to new screen size 1517 slider.children.add(el.find('.bx-clone')).outerWidth(getSlideWidth()); 1518 // adjust the height 1519 slider.viewport.css('height', getViewportHeight()); 1520 // update the slide position 1521 if (!slider.settings.ticker) { setSlidePosition(); } 1522 // if active.last was true before the screen resize, we want 1523 // to keep it last no matter what screen size we end on 1524 if (slider.active.last) { slider.active.index = getPagerQty() - 1; } 1525 // if the active index (page) no longer exists due to the resize, simply set the index as last 1526 if (slider.active.index >= getPagerQty()) { slider.active.last = true; } 1527 // if a pager is being displayed and a custom pager is not being used, update it 1528 if (slider.settings.pager && !slider.settings.pagerCustom) { 1529 populatePager(); 1530 updatePagerActive(slider.active.index); 1531 } 1532 if (slider.settings.ariaHidden) { applyAriaHiddenAttributes(slider.active.index * getMoveBy()); } 1533 }; 1534 1535 /** 1536 * Destroy the current instance of the slider (revert everything back to original state) 1537 */ 1538 el.destroySlider = function() { 1539 // don't do anything if slider has already been destroyed 1540 if (!slider.initialized) { return; } 1541 slider.initialized = false; 1542 $('.bx-clone', this).remove(); 1543 slider.children.each(function() { 1544 if ($(this).data('origStyle') !== undefined) { 1545 $(this).attr('style', $(this).data('origStyle')); 1546 } else { 1547 $(this).removeAttr('style'); 1548 } 1549 }); 1550 if ($(this).data('origStyle') !== undefined) { 1551 this.attr('style', $(this).data('origStyle')); 1552 } else { 1553 $(this).removeAttr('style'); 1554 } 1555 $(this).unwrap().unwrap(); 1556 if (slider.controls.el) { slider.controls.el.remove(); } 1557 if (slider.controls.next) { slider.controls.next.remove(); } 1558 if (slider.controls.prev) { slider.controls.prev.remove(); } 1559 if (slider.pagerEl && slider.settings.controls && !slider.settings.pagerCustom) { slider.pagerEl.remove(); } 1560 $('.bx-caption', this).remove(); 1561 if (slider.controls.autoEl) { slider.controls.autoEl.remove(); } 1562 clearInterval(slider.interval); 1563 if (slider.settings.responsive) { $(window).unbind('resize', resizeWindow); } 1564 if (slider.settings.keyboardEnabled) { $(document).unbind('keydown', keyPress); } 1565 //remove self reference in data 1566 $(this).removeData('bxSlider'); 1567 }; 1568 1569 /** 1570 * Reload the slider (revert all DOM changes, and re-initialize) 1571 */ 1572 el.reloadSlider = function(settings) { 1573 if (settings !== undefined) { options = settings; } 1574 el.destroySlider(); 1575 init(); 1576 //store reference to self in order to access public functions later 1577 $(el).data('bxSlider', this); 1578 }; 1579 1580 init(); 1581 1582 $(el).data('bxSlider', this); 1583 1584 // returns the current jQuery object 1585 return this; 1586 }; 1587 1588})(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.