1/* 2 _ _ _____ _ _ 3 | | | __ \ | | (_) 4 ___ ___ _ __ ___ | | | |__) |_____ _____ __ _| | _ ___ 5 / __|/ __| '__/ _ \| | | _ // _ \ \ / / _ \/ _` | | | / __| 6 \__ \ (__| | | (_) | | | | \ \ __/\ V / __/ (_| | |_| \__ \ 7 |___/\___|_| \___/|_|_|_| \_\___| \_/ \___|\__,_|_(_) |___/ v2.3.0 8 _/ | 9 |__/ 10 11================================================================================ 12 13 scrollReveal.js (c) 2015 Julian Lloyd ( @julianlloyd ) 14 Licensed under MIT ( http://www.opensource.org/licenses/mit-license.php ) 15 16==============================================================================*/ 17 18window.scrollReveal = (function( window ){ 19 20 'use strict'; 21 22 var _requestAnimFrame; 23 var _extend; 24 var _handler; 25 var self; 26 27 function scrollReveal( config ){ 28 29 self = this; 30 self.elems = {}; 31 self.serial = 1; 32 self.blocked = false; 33 self.config = _extend( self.defaults, config ); 34 35 if ( self.isMobile() && !self.config.mobile || !self.isSupported() ){ 36 self.destroy(); 37 return; 38 } 39 40 if ( self.config.viewport === window.document.documentElement ){ 41 42 window.addEventListener( 'scroll', _handler, false ); 43 window.addEventListener( 'resize', _handler, false ); 44 45 } else { 46 self.config.viewport.addEventListener( 'scroll', _handler, false ); 47 } 48 49 self.init( true ); 50 } 51 52 scrollReveal.prototype = { 53 54 defaults: { 55 56 enter: 'bottom', 57 move: '8px', 58 over: '0.6s', 59 wait: '0s', 60 easing: 'ease', 61 62 scale: { direction: 'up', power: '5%' }, 63 rotate: { x: 0, y: 0, z: 0 }, 64 65 opacity: 0, 66 mobile: false, 67 reset: false, 68 69 // Expects a reference to a DOM node (the <html> node by default) 70 // which is used as the context when checking element visibility. 71 viewport: window.document.documentElement, 72 73 // 'always' â delay every time an animation resets 74 // 'onload' - delay only for animations triggered by first load 75 // 'once' â delay only the first time an animation reveals 76 delay: 'once', 77 78 // vFactor changes when an element is considered in the viewport. 79 // The default value of 0.60 means 60% of an element must be 80 // visible for its reveal animation to trigger. 81 vFactor: 0.60, 82 83 complete: function( el ){} // Note: reset animations do not complete. 84 }, 85 86 // Queries the DOM, builds scrollReveal elements and triggers animation. 87 // @param {boolean} flag â a hook for controlling delay on first load. 88 init: function( flag ){ 89 90 var serial; 91 var elem; 92 var query; 93 94 query = Array.prototype.slice.call( self.config.viewport.querySelectorAll('[data-sr]') ); 95 query.forEach(function( el ){ 96 97 serial = self.serial++; 98 elem = self.elems[ serial ] = { domEl: el }; 99 elem.config = self.configFactory( elem ); 100 elem.styles = self.styleFactory( elem ); 101 elem.seen = false; 102 103 el.removeAttribute('data-sr'); 104 105 el.setAttribute( 'style', 106 elem.styles.inline 107 + elem.styles.initial 108 ); 109 }) 110 111 self.scrolled = self.scrollY(); 112 self.animate( flag ); 113 }, 114 115 // Applies and removes appropriate styles. 116 // @param {boolean} flag â a hook for controlling delay on first load. 117 animate: function( flag ){ 118 119 var key; 120 var elem; 121 var visible; 122 123 // Begin element store digest. 124 for ( key in self.elems ){ 125 if ( self.elems.hasOwnProperty( key ) ){ 126 127 elem = self.elems[ key ]; 128 visible = self.isElemInViewport( elem ); 129 130 if ( visible ){ 131 132 if ( self.config.delay === 'always' 133 || ( self.config.delay === 'onload' && flag ) 134 || ( self.config.delay === 'once' && !elem.seen ) ){ 135 136 // Use delay. 137 elem.domEl.setAttribute( 'style', 138 elem.styles.inline 139 + elem.styles.target 140 + elem.styles.transition 141 ); 142 143 } else { 144 145 // Donât use delay. 146 elem.domEl.setAttribute( 'style', 147 elem.styles.inline 148 + elem.styles.target 149 + elem.styles.reset 150 ); 151 } 152 153 elem.seen = true; 154 155 if ( !elem.config.reset && !elem.animating ){ 156 elem.animating = true; 157 complete( key ); 158 } 159 160 } else if ( !visible && elem.config.reset ){ 161 162 elem.domEl.setAttribute( 'style', 163 elem.styles.inline 164 + elem.styles.initial 165 + elem.styles.reset 166 ); 167 } 168 } 169 } 170 171 // Digest complete, now un-block the event handler. 172 self.blocked = false;
173 174 // Cleans the DOM and removes completed elements from self.elems. 175 // @param {integer} key â self.elems property key. 176 function complete( key ){ 177 178 var elem = self.elems[ key ]; 179 180 setTimeout(function(){ 181 182 elem.domEl.setAttribute( 'style', elem.styles.inline ); 183 elem.config.complete( elem.domEl ); 184 delete self.elems[ key ]; 185 186 }, elem.styles.duration ); 187 } 188 }, 189 190 // Parses an elements data-sr attribute, and returns a configuration object. 191 // @param {object} elem â An object from self.elems. 192 // @return {object} 193 configFactory: function( elem ){ 194 195 var parsed = {}; 196 var config = {}; 197 var words = elem.domEl.getAttribute('data-sr').split( /[, ]+/ ); 198 199 words.forEach(function( keyword, i ){ 200 switch ( keyword ){ 201 202 case 'enter': 203 204 parsed.enter = words[ i + 1 ]; 205 break; 206 207 case 'wait': 208 209 parsed.wait = words[ i + 1 ]; 210 break; 211 212 case 'move': 213 214 parsed.move = words[ i + 1 ]; 215 break; 216 217 case 'ease': 218 219 parsed.move = words[ i + 1 ]; 220 parsed.ease = 'ease'; 221 break; 222 223 case 'ease-in': 224 225 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 226 227 parsed.scale.direction = words[ i + 1 ]; 228 parsed.scale.power = words[ i + 2 ]; 229 parsed.easing = 'ease-in'; 230 break; 231 } 232 233 parsed.move = words[ i + 1 ]; 234 parsed.easing = 'ease-in'; 235 break; 236 237 case 'ease-in-out': 238 239 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 240 241 parsed.scale.direction = words[ i + 1 ]; 242 parsed.scale.power = words[ i + 2 ]; 243 parsed.easing = 'ease-in-out'; 244 break; 245 } 246 247 parsed.move = words[ i + 1 ]; 248 parsed.easing = 'ease-in-out'; 249 break; 250 251 case 'ease-out': 252 253 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 254 255 parsed.scale.direction = words[ i + 1 ]; 256 parsed.scale.power = words[ i + 2 ]; 257 parsed.easing = 'ease-out'; 258 break; 259 } 260 261 parsed.move = words[ i + 1 ]; 262 parsed.easing = 'ease-out'; 263 break; 264 265 case 'hustle': 266 267 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 268 269 parsed.scale.direction = words[ i + 1 ]; 270 parsed.scale.power = words[ i + 2 ]; 271 parsed.easing = 'cubic-bezier( 0.6, 0.2, 0.1, 1 )'; 272 break; 273 } 274 275 parsed.move = words[ i + 1 ]; 276 parsed.easing = 'cubic-bezier( 0.6, 0.2, 0.1, 1 )'; 277 break; 278 279 case 'over': 280 281 parsed.over = words[ i + 1 ]; 282 break; 283 284 case 'flip': 285 case 'pitch': 286 parsed.rotate = parsed.rotate || {}; 287 parsed.rotate.x = words[ i + 1 ]; 288 break; 289 290 case 'spin': 291 case 'yaw': 292 parsed.rotate = parsed.rotate || {}; 293 parsed.rotate.y = words[ i + 1 ]; 294 break; 295 296 case 'roll': 297 parsed.rotate = parsed.rotate || {}; 298 parsed.rotate.z = words[ i + 1 ]; 299 break; 300 301 case 'reset': 302 303 if ( words[ i - 1 ] == 'no' ){ 304 parsed.reset = false; 305 } else { 306 parsed.reset = true; 307 } 308 break; 309 310 case 'scale': 311 312 parsed.scale = {}; 313 314 if ( words[ i + 1 ] == 'up' || words[ i + 1 ] == 'down' ){ 315 316 parsed.scale.direction = words[ i + 1 ]; 317 parsed.scale.power = words[ i + 2 ]; 318 break; 319 } 320 321 parsed.scale.power = words[ i + 1 ]; 322 break; 323 324 case 'vFactor': 325 case 'vF': 326 parsed.vFactor = words[ i + 1 ]; 327 break; 328 329 case 'opacity': 330 parsed.opacity = words[ i + 1 ]; 331 break; 332 333 default: 334 return; 335 } 336 }); 337 338 // Build default config object, then apply any keywords parsed from the 339 // data-sr attribute. 340 config = _extend( config, self.config ); 341 config = _extend( config, parsed ); 342 343 if ( config.enter === 'top' || config.enter === 'bottom' ){ 344 config.axis = 'Y'; 345 } else if ( config.enter === 'left' || config.enter === 'right' ){ 346 config.axis = 'X'; 347 } 348 349 // Letâs make sure our our pixel distances are negative for top and left. 350 // e.g. "enter top and move 25px" starts at 'top: -25px' in CSS. 351 if ( config.enter === 'top' || config.enter === 'left' ){ 352 config.move = '-' + config.move; 353 } 354 355 return config; 356 }, 357 358 // Generates styles based on an elements configuration property. 359 // @param {object} elem â An object from self.elems. 360 // @return {object} 361 styleFactory: function( elem ){ 362 363 var inline; 364 var initial; 365 var reset; 366 var target; 367 var transition; 368 369 var cfg = elem.config; 370 var duration = ( parseFloat( cfg.over ) + parseFloat( cfg.wait ) ) * 1000; 371 372 // Want to disable delay on mobile devices? Uncomment the line below. 373 // if ( self.isMobile() && self.config.mobile ) cfg.wait = 0; 374 375 if ( elem.domEl.getAttribute('style') ){ 376 inline = elem.domEl.getAttribute('style') + '; visibility: visible; '; 377 } else { 378 inline = 'visibility: visible; '; 379 } 380 381 transition = '-webkit-transition: -webkit-transform ' + cfg.over + ' ' + cfg.easing + ' ' + cfg.wait + ', opacity ' + cfg.over + ' ' + cfg.easing + ' ' + cfg.wait + '; ' + 382 'transition: transform ' + cfg.over + ' ' + cfg.easing + ' ' + cfg.wait + ', opacity ' + cfg.over + ' ' + cfg.easing + ' ' + cfg.wait + '; ' +
383 '-webkit-perspective: 1000;' + 384 '-webkit-backface-visibility: hidden;'; 385 386 reset = '-webkit-transition: -webkit-transform ' + cfg.over + ' ' + cfg.easing + ' 0s, opacity ' + cfg.over + ' ' + cfg.easing + ' 0s; ' + 387 'transition: transform ' + cfg.over + ' ' + cfg.easing + ' 0s, opacity ' + cfg.over + ' ' + cfg.easing + ' 0s; ' + 388 '-webkit-perspective: 1000; ' + 389 '-webkit-backface-visibility: hidden; '; 390 391 initial = 'transform:'; 392 target = 'transform:'; 393 build(); 394 395 // Build again for webkit⦠396 initial += '-webkit-transform:'; 397 target += '-webkit-transform:'; 398 build(); 399 400 return { 401 transition: transition, 402 initial: initial, 403 target: target, 404 reset: reset, 405 inline: inline, 406 duration: duration 407 }; 408 409 // Constructs initial and target styles. 410 function build(){ 411 412 if ( parseInt( cfg.move ) !== 0 ){ 413 initial += ' translate' + cfg.axis + '(' + cfg.move + ')'; 414 target += ' translate' + cfg.axis + '(0)'; 415 } 416 417 if ( parseInt( cfg.scale.power ) !== 0 ){ 418 419 if ( cfg.scale.direction === 'up' ){ 420 cfg.scale.value = 1 - ( parseFloat( cfg.scale.power ) * 0.01 ); 421 } else if ( cfg.scale.direction === 'down' ){ 422 cfg.scale.value = 1 + ( parseFloat( cfg.scale.power ) * 0.01 ); 423 } 424 425 initial += ' scale(' + cfg.scale.value + ')'; 426 target += ' scale(1)'; 427 } 428 429 if ( cfg.rotate.x ){ 430 initial += ' rotateX(' + cfg.rotate.x + ')'; 431 target += ' rotateX(0)'; 432 } 433 434 if ( cfg.rotate.y ){ 435 initial += ' rotateY(' + cfg.rotate.y + ')'; 436 target += ' rotateY(0)'; 437 } 438 439 if ( cfg.rotate.z ){ 440 initial += ' rotateZ(' + cfg.rotate.z + ')'; 441 target += ' rotateZ(0)'; 442 } 443 444 initial += '; opacity: ' + cfg.opacity + '; '; 445 target += '; opacity: 1; '; 446 } 447 }, 448 449 getViewportH: function(){ 450 451 var client = self.config.viewport['clientHeight']; 452 var inner = window['innerHeight']; 453 454 if ( self.config.viewport === window.document.documentElement ){ 455 return ( client < inner ) ? inner : client; 456 } 457 458 return client; 459 }, 460 461 scrollY: function(){ 462 if ( self.config.viewport === window.document.documentElement ){ 463 return window.pageYOffset; 464 } else { 465 return self.config.viewport.scrollTop + self.config.viewport.offsetTop; 466 } 467 }, 468 469 getOffset: function( el ){ 470 471 var offsetTop = 0; 472 var offsetLeft = 0; 473 474 do { 475 if ( !isNaN( el.offsetTop ) ){ 476 offsetTop += el.offsetTop; 477 } 478 if ( !isNaN( el.offsetLeft ) ){ 479 offsetLeft += el.offsetLeft; 480 } 481 } while ( el = el.offsetParent ); 482 483 return { 484 top: offsetTop, 485 left: offsetLeft 486 }; 487 }, 488 489 isElemInViewport: function( elem ){ 490 491 var elHeight = elem.domEl.offsetHeight; 492 var elTop = self.getOffset( elem.domEl ).top; 493 var elBottom = elTop + elHeight; 494 var vFactor = elem.config.vFactor || 0; 495 496 return ( confirmBounds() || isPositionFixed() ); 497 498 function confirmBounds(){ 499 500 var top = elTop + elHeight * vFactor; 501 var bottom = elBottom - elHeight * vFactor; 502 var viewBottom = self.scrolled + self.getViewportH(); 503 var viewTop = self.scrolled; 504 505 return ( top < viewBottom ) && ( bottom > viewTop ); 506 } 507 508 function isPositionFixed(){ 509 510 var el = elem.domEl; 511 var style = el.currentStyle || window.getComputedStyle( el, null ); 512 513 return style.position === 'fixed'; 514 } 515 }, 516 517 isMobile: function(){ 518 519 var agent = navigator.userAgent || navigator.vendor || window.opera; 520 521 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 )|
521sy(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; 522 }, 523 524 isSupported: function(){ 525 526 var sensor = document.createElement('sensor'); 527 var cssPrefix = 'Webkit,Moz,O,'.split(','); 528 var tests = ( 'transition ' + cssPrefix.join('transition,') ).split(','); 529 530 for ( var i = 0; i < tests.length; i++ ){ 531 if ( !sensor.style[tests[i]] === '' ){ 532 return false; 533 } 534 } 535 536 return true; 537 }, 538 539 destroy: function(){ 540 541 var node = self.config.viewport; 542 var query = Array.prototype.slice.call( node.querySelectorAll('[data-sr]') ); 543 544 query.forEach(function( el ){ 545 el.removeAttribute('data-sr'); 546 }); 547 } 548 } // End of the scrollReveal prototype ======================================| 549 550 _handler = function( e ){ 551 552 if ( !self.blocked ){ 553 554 self.blocked = true; 555 self.scrolled = self.scrollY(); 556 557 _requestAnimFrame(function(){ 558 self.animate(); 559 }); 560 } 561 } 562 563 _extend = function( target, src ){ 564 565 for ( var prop in src ){ 566 if ( src.hasOwnProperty( prop ) ){ 567 target[ prop ] = src[ prop ]; 568 } 569 } 570 571 return target; 572 } 573 574 // RequestAnimationFrame polyfill. 575 _requestAnimFrame = (function(){ 576 577 return window.requestAnimationFrame || 578 window.webkitRequestAnimationFrame || 579 window.mozRequestAnimationFrame || 580 581 function( callback ){ 582 window.setTimeout( callback, 1000 / 60 ); 583 }; 584 }()); 585 586 return scrollReveal; 587 588})( window );
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.