1 2(function(root, factory) { 3 if (typeof define === 'function' && define.amd) { 4 define(factory); 5 } else if (typeof exports === 'object') { 6 module.exports = factory(require, exports, module); 7 } else { 8 root.scrollReveal = factory(); 9 } 10}(this, function(require, exports, module) { 11 12/* 13 _ _ _____ _ _ 14 | | | __ \ | | (_) 15 ___ ___ _ __ ___ | | | |__) |_____ _____ __ _| | _ ___ 16 / __|/ __| '__/ _ \| | | _ // _ \ \ / / _ \/ _` | | | / __| 17 \__ \ (__| | | (_) | | | | \ \ __/\ V / __/ (_| | |_| \__ \ 18 |___/\___|_| \___/|_|_|_| \_\___| \_/ \___|\__,_|_(_) |___/ v2.3.2 19 _/ | 20 |__/ 21 22================================================================================ 23 24 scrollReveal.js (c) 2015 Julian Lloyd ( @julianlloyd ) 25 Licensed under MIT ( http://www.opensource.org/licenses/mit-license.php ) 26 27==============================================================================*/ 28 29window.scrollReveal = (function( window ){ 30 31 'use strict'; 32 33 var _requestAnimFrame; 34 var _extend; 35 var _handler; 36 var self; 37 38 function scrollReveal( config ){ 39 40 if ( !( this instanceof scrollReveal ) ) { 41 return new scrollReveal( config ); 42 } 43 44 self = this; 45 self.elems = {}; 46 self.serial = 1; 47 self.blocked = false; 48 self.config = _extend( self.defaults, config ); 49 50 if ( self.isMobile() && !self.config.mobile || !self.isSupported() ){ 51 self.destroy(); 52 return; 53 } 54 55 if ( self.config.viewport === window.document.documentElement ){ 56 57 window.addEventListener( 'scroll', _handler, false ); 58 window.addEventListener( 'resize', _handler, false ); 59 60 } else { 61 self.config.viewport.addEventListener( 'scroll', _handler, false ); 62 } 63 64 self.init( true ); 65 } 66 67 scrollReveal.prototype = { 68 69 defaults: { 70 71 enter: 'bottom', 72 move: '8px', 73 over: '0.6s', 74 wait: '0s', 75 easing: 'ease', 76 77 scale: { direction: 'up', power: '5%' }, 78 rotate: { x: 0, y: 0, z: 0 }, 79 80 opacity: 0, 81 mobile: false, 82 reset: false, 83 84 // Expects a reference to a DOM node (the <html> node by default) 85 // which is used as the context when checking element visibility. 86 viewport: window.document.documentElement, 87 88 // 'always' â delay every time an animation resets 89 // 'onload' - delay only for animations triggered by first load 90 // 'once' â delay only the first time an animation reveals 91 delay: 'once', 92 93 // vFactor changes when an element is considered in the viewport. 94 // The default value of 0.60 means 60% of an element must be 95 // visible for its reveal animation to trigger. 96 vFactor: 0.4, 97 98 complete: function( el ){} // Note: reset animations do not complete. 99 }, 100 101 // Queries the DOM, builds scrollReveal elements and triggers animation. 102 // @param {boolean} flag â a hook for controlling delay on first load. 103 init: function( flag ){ 104 105 var serial; 106 var elem; 107 var query; 108 109 query = Array.prototype.slice.call( self.config.viewport.querySelectorAll('[data-sr]') ); 110 query.forEach(function( el ){ 111 112 serial = self.serial++; 113 elem = self.elems[ serial ] = { domEl: el }; 114 elem.config = self.configFactory( elem ); 115 elem.styles = self.styleFactory( elem ); 116 elem.seen = false; 117 118 el.removeAttribute('data-sr'); 119 120 el.setAttribute( 'style', 121 elem.styles.inline 122 + elem.styles.initial 123 ); 124 }) 125 126 self.scrolled = self.scrollY(); 127 self.animate( flag ); 128 }, 129 130 // Applies and removes appropriate styles. 131 // @param {boolean} flag â a hook for controlling delay on first load. 132 animate: function( flag ){ 133 134 var key; 135 var elem; 136 var visible; 137 138 // Begin element store digest. 139 for ( key in self.elems ){ 140 if ( self.elems.hasOwnProperty( key ) ){ 141 142 elem = self.elems[ key ]; 143 visible = self.isElemInViewport( elem ); 144 145 if ( visible ){ 146 147 if ( self.config.delay === 'always' 148 || ( self.config.delay === 'onload' && flag ) 149 || ( self.config.delay === 'once' && !elem.seen ) ){ 150 151 // Use delay. 152 elem.domEl.setAttribute( 'style', 153 elem.styles.inline 154 + elem.styles.target 155 + elem.styles.transition 156 ); 157 158 } else { 159 160 // Donât use delay. 161 elem.domEl.setAttribute( 'style', 162 elem.styles.inline 163 + elem.styles.target 164 + elem.styles.reset 165 ); 166 } 167 168 elem.seen = true; 169 170 if ( !elem.config.reset && !elem.animating ){ 171 elem.animating = true; 172 complete( key ); 173 } 174 175 } else if ( !visible && elem.config.reset ){ 176 177 elem.domEl.setAttribute( 'style', 178 elem.styles.inline 179 + elem.styles.initial 180 + elem.styles.reset 181 ); 182 } 183 } 184 } 185 186 // Digest complete, now un-block the event handler. 187 self.blocked = false; 188 189 // Cleans the DOM and removes completed elements from self.elems. 190 // @param {integer} key â self.elems property key. 191 function complete( key ){ 192 193 var elem = self.elems[ key ]; 194 195 setTimeout(function(){ 196 197 elem.domEl.setAttribute( 'style', elem.styles.inline ); 198 elem.config.complete( elem.domEl ); 199 delete self.elems[ key ]; 200 201 }, elem.styles.duration ); 202 } 203 }, 204 205 // Parses an elements data-sr attribute, and returns a configuration object. 206 // @param {object} elem â An object from self.elems. 207 // @return {object} 208 configFactory: function( elem ){ 209 210 var parsed = {}; 211 var config = {}; 212 var words = elem.domEl.getAttribute('data-sr').split( /[, ]+/ ); 213 214 words.forEach(function( keyword, i ){ 215 switch ( keyword ){ 216 217 case 'enter': 218 219 parsed.enter = words[ i + 1 ]; 220 break; 221 222 case 'wait': 223 224 parsed.wait = words[ i + 1 ]; 225 break; 226 227 case 'move': 228 229 parsed.move = words[ i + 1 ]; 230 break; 231 232 case 'ease': 233 234 parsed.move = words[ i + 1 ]; 235 parsed.ease = 'ease'; 236 break; 237 238 case 'ease-in': 239 240 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 241 242 parsed.scale.direction = words[ i + 1 ]; 243 parsed.scale.power = words[ i + 2 ]; 244 parsed.easing = 'ease-in'; 245 break; 246 } 247 248 parsed.move = words[ i + 1 ]; 249 parsed.easing = 'ease-in'; 250 break; 251 252 case 'ease-in-out': 253 254 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 255 256 parsed.scale.direction = words[ i + 1 ]; 257 parsed.scale.power = words[ i + 2 ]; 258 parsed.easing = 'ease-in-out'; 259 break; 260 } 261 262 parsed.move = words[ i + 1 ]; 263 parsed.easing = 'ease-in-out'; 264 break; 265 266 case 'ease-out': 267 268 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 269 270 parsed.scale.direction = words[ i + 1 ]; 271 parsed.scale.power = words[ i + 2 ]; 272 parsed.easing = 'ease-out'; 273 break; 274 } 275 276 parsed.move = words[ i + 1 ]; 277 parsed.easing = 'ease-out'; 278 break; 279 280 case 'hustle': 281 282 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 283 284 parsed.scale.direction = words[ i + 1 ]; 285 parsed.scale.power = words[ i + 2 ]; 286 parsed.easing = 'cubic-bezier( 0.6, 0.2, 0.1, 1 )'; 287 break; 288 } 289 290 parsed.move = words[ i + 1 ]; 291 parsed.easing = 'cubic-bezier( 0.6, 0.2, 0.1, 1 )'; 292 break; 293 294 case 'over': 295 296 parsed.over = words[ i + 1 ]; 297 break; 298 299 case 'flip': 300 case 'pitch': 301 parsed.rotate = parsed.rotate || {}; 302 parsed.rotate.x = words[ i + 1 ]; 303 break; 304 305 case 'spin': 306 case 'yaw': 307 parsed.rotate = parsed.rotate || {}; 308 parsed.rotate.y = words[ i + 1 ]; 309 break; 310 311 case 'roll': 312 parsed.rotate = parsed.rotate || {}; 313 parsed.rotate.z = words[ i + 1 ]; 314 break; 315 316 case 'reset': 317 318 if ( words[ i - 1 ] == 'no' ){ 319 parsed.reset = false; 320 } else { 321 parsed.reset = true; 322 } 323 break; 324 325 case 'scale': 326 327 parsed.scale = {}; 328 329 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 330 331 parsed.scale.direction = words[ i + 1 ]; 332 parsed.scale.power = words[ i + 2 ]; 333 break; 334 } 335 336 parsed.scale.power = words[ i + 1 ]; 337 break; 338 339 case 'vFactor': 340 case 'vF': 341 parsed.vFactor = words[ i + 1 ]; 342 break; 343 344 case 'opacity': 345 parsed.opacity = words[ i + 1 ]; 346 break; 347 348 default: 349 return; 350 } 351 }); 352 353 // Build default config object, then apply any keywords parsed from the 354 // data-sr attribute. 355 config = _extend( config, self.config ); 356 config = _extend( config, parsed ); 357 358 if ( config.enter === 'top' || config.enter === 'bottom' ){ 359 config.axis = 'Y'; 360 } else if ( config.enter === 'left' || config.enter === 'right' ){ 361 config.axis = 'X'; 362 } 363 364 // Letâs make sure our our pixel distances are negative for top and left.
365 // e.g. "enter top and move 25px" starts at 'top: -25px' in CSS. 366 if ( config.enter === 'top' || config.enter === 'left' ){ 367 config.move = '-' + config.move; 368 } 369 370 return config; 371 }, 372 373 // Generates styles based on an elements configuration property. 374 // @param {object} elem â An object from self.elems. 375 // @return {object} 376 styleFactory: function( elem ){ 377 378 var inline; 379 var initial; 380 var reset; 381 var target; 382 var transition; 383 384 var cfg = elem.config; 385 var duration = ( parseFloat( cfg.over ) + parseFloat( cfg.wait ) ) * 1000; 386 387 // Want to disable delay on mobile devices? Uncomment the line below. 388 // if ( self.isMobile() && self.config.mobile ) cfg.wait = 0; 389 390 if ( elem.domEl.getAttribute('style') ){ 391 inline = elem.domEl.getAttribute('style') + '; visibility: visible; '; 392 } else { 393 inline = 'visibility: visible; '; 394 } 395 396 transition = '-webkit-transition: -webkit-transform ' + cfg.over + ' ' + cfg.easing + ' ' + cfg.wait + ', opacity ' + cfg.over + ' ' + cfg.easing + ' ' + cfg.wait + '; ' + 397 'transition: transform ' + cfg.over + ' ' + cfg.easing + ' ' + cfg.wait + ', opacity ' + cfg.over + ' ' + cfg.easing + ' ' + cfg.wait + '; ' + 398 '-webkit-perspective: 1000;' + 399 '-webkit-backface-visibility: hidden;'; 400 401 reset = '-webkit-transition: -webkit-transform ' + cfg.over + ' ' + cfg.easing + ' 0s, opacity ' + cfg.over + ' ' + cfg.easing + ' 0s; ' + 402 'transition: transform ' + cfg.over + ' ' + cfg.easing + ' 0s, opacity ' + cfg.over + ' ' + cfg.easing + ' 0s; ' + 403 '-webkit-perspective: 1000; ' + 404 '-webkit-backface-visibility: hidden; '; 405 406 initial = 'transform:'; 407 target = 'transform:'; 408 build(); 409 410 // Build again for webkit⦠411 initial += '-webkit-transform:'; 412 target += '-webkit-transform:'; 413 build(); 414 415 return { 416 transition: transition, 417 initial: initial, 418 target: target, 419 reset: reset, 420 inline: inline, 421 duration: duration 422 }; 423 424 // Constructs initial and target styles. 425 function build(){ 426 427 if ( parseInt( cfg.move ) !== 0 ){ 428 initial += ' translate' + cfg.axis + '(' + cfg.move + ')'; 429 target += ' translate' + cfg.axis + '(0)'; 430 } 431 432 if ( parseInt( cfg.scale.power ) !== 0 ){ 433 434 if ( cfg.scale.direction === 'up' ){ 435 cfg.scale.value = 1 - ( parseFloat( cfg.scale.power ) * 0.01 ); 436 } else if ( cfg.scale.direction === 'down' ){ 437 cfg.scale.value = 1 + ( parseFloat( cfg.scale.power ) * 0.01 ); 438 } 439 440 initial += ' scale(' + cfg.scale.value + ')'; 441 target += ' scale(1)'; 442 } 443 444 if ( cfg.rotate.x ){ 445 initial += ' rotateX(' + cfg.rotate.x + ')'; 446 target += ' rotateX(0)'; 447 } 448 449 if ( cfg.rotate.y ){ 450 initial += ' rotateY(' + cfg.rotate.y + ')'; 451 target += ' rotateY(0)'; 452 } 453 454 if ( cfg.rotate.z ){ 455 initial += ' rotateZ(' + cfg.rotate.z + ')'; 456 target += ' rotateZ(0)'; 457 } 458 459 initial += '; opacity: ' + cfg.opacity + '; '; 460 target += '; opacity: 1; '; 461 } 462 }, 463 464 getViewportH: function(){ 465 466 var client = self.config.viewport['clientHeight']; 467 var inner = window['innerHeight']; 468 469 if ( self.config.viewport === window.document.documentElement ){ 470 return ( client < inner ) ? inner : client; 471 } 472 473 return client; 474 }, 475 476 scrollY: function(){ 477 if ( self.config.viewport === window.document.documentElement ){ 478 return window.pageYOffset; 479 } else { 480 return self.config.viewport.scrollTop + self.config.viewport.offsetTop; 481 } 482 }, 483 484 getOffset: function( el ){ 485 486 var offsetTop = 0; 487 var offsetLeft = 0; 488 489 do { 490 if ( !isNaN( el.offsetTop ) ){ 491 offsetTop += el.offsetTop; 492 } 493 if ( !isNaN( el.offsetLeft ) ){
494 offsetLeft += el.offsetLeft; 495 } 496 } while ( el = el.offsetParent ); 497 498 return { 499 top: offsetTop, 500 left: offsetLeft 501 }; 502 }, 503 504 isElemInViewport: function( elem ){ 505 506 var elHeight = elem.domEl.offsetHeight; 507 var elTop = self.getOffset( elem.domEl ).top; 508 var elBottom = elTop + elHeight; 509 var vFactor = elem.config.vFactor || 0; 510 511 return ( confirmBounds() || isPositionFixed() ); 512 513 function confirmBounds(){ 514 515 var top = elTop + elHeight * vFactor; 516 var bottom = elBottom - elHeight * vFactor; 517 var viewBottom = self.scrolled + self.getViewportH(); 518 var viewTop = self.scrolled; 519 520 return ( top < viewBottom ) && ( bottom > viewTop ); 521 } 522 523 function isPositionFixed(){ 524 525 var el = elem.domEl; 526 var style = el.currentStyle || window.getComputedStyle( el, null ); 527 528 return style.position === 'fixed'; 529 } 530 }, 531 532 isMobile: function(){ 533 534 var agent = navigator.userAgent || navigator.vendor || window.opera; 535 536 return (/(ipad|playbook|silk|android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test( agent )||/1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test( agent.substr( 0, 4 ))) ? true : false; 537 }, 538 539 isSupported: function(){ 540 541 var sensor = document.createElement('sensor'); 542 var cssPrefix = 'Webkit,Moz,O,'.split(','); 543 var tests = ( 'transition ' + cssPrefix.join('transition,') ).split(','); 544 545 for ( var i = 0; i < tests.length; i++ ){ 546 if ( !sensor.style[tests[i]] === '' ){ 547 return false; 548 } 549 } 550 551 return true; 552 }, 553 554 destroy: function(){ 555 556 var node = self.config.viewport; 557 var query = Array.prototype.slice.call( node.querySelectorAll('[data-sr]') ); 558 559 query.forEach(function( el ){ 560 el.removeAttribute('data-sr'); 561 }); 562 } 563 } // End of the scrollReveal prototype ======================================| 564 565 _handler = function( e ){ 566 567 if ( !self.blocked ){ 568 569 self.blocked = true; 570 self.scrolled = self.scrollY(); 571 572 _requestAnimFrame(function(){ 573 self.animate(); 574 }); 575 } 576 } 577 578 _extend = function( target, src ){ 579 580 for ( var prop in src ){ 581 if ( src.hasOwnProperty( prop ) ){ 582 target[ prop ] = src[ prop ]; 583 } 584 } 585 586 return target; 587 } 588 589 // RequestAnimationFrame polyfill. 590 _requestAnimFrame = (function(){ 591 592 return window.requestAnimationFrame || 593 window.webkitRequestAnimationFrame || 594 window.mozRequestAnimationFrame || 595 596 function( callback ){ 597 window.setTimeout( callback, 1000 / 60 ); 598 }; 599 }()); 600 601 return scrollReveal; 602 603})( window ); 604 605return scrollReveal; 606 607}));
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.