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