Flickr Gallery

Image grid & gallery using the flickr RESTful API.

HTML

<section id="gallery">
  <span class="gallery-slider__close"></span>
  <span class="gallery-nav gallery-nav-left"></span>
  <div class="gallery-stage">
    <div class="gallery-slides"></div>
  </div>
  <span class="gallery-nav gallery-nav-right"></span>
</section>

CSS

* {
  box-sizing: border-box;
}

#gallery {
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  position: relative;
}

#gallery:not(.open) .gallery-slider__close {
  display: none;
}

.gallery-slider__close {
  position: absolute;
  right: 0.25em;
  top: 0.25em;
}

.gallery-slider__close:before {
  content: '\00D7';
  font-size: 20px;
  font-weight: bold;
}

#gallery:not(.open) .gallery-nav {
  display: none;
}

.gallery-slider__close,
.gallery-nav {
  cursor: pointer;
}

.gallery-nav-left,
.gallery-nav-right {
  border-bottom: 10px solid transparent;
  border-top: 10px solid transparent;
}

.gallery-nav-left {
  border-right: 10px solid black;
}

.gallery-nav-right {
  border-left: 10px solid black;
}

.gallery-stage {
  overflow: hidden;
}

#gallery.open .gallery-stage {
  flex: 1;
}

.gallery-slides {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

#gallery.open .gallery-slides {
  -webkit-flex-flow: row nowrap;
  -ms-flex-flow: row nowrap;
  flex-flow: row nowrap;
  -webkit-transition: -webkit-transform 0.2s ease-in-out;
  transition: transform 0.2s ease-in-out;
}

.gallery-slide {
  -webkit-box-flex: 1;
  -webkit-flex: 1 1 auto;
  -ms-flex: 1 1 auto;
  /* IE bug */
  flex: 1 1 auto;
  /* IE bug */
  margin: 0;
  min-width: 0;
  /* ffx bug */
  padding: 1em;
  width: 50%;
  /* IE bug */
}

#gallery:not(.open) .gallery-slide {
  cursor: pointer;
}

.gallery-slide__image {
  max-width: 100%;
}

.gallery-slide__title {
  font-family: Arial, sans-serif;
  font-weight: bold;
}

Babel + JSX

var apiKey = 'b3ecbf6e93be1a9ca7d0b2db228fda05';

var ViewModel = function(container, selectors) {
  this._model = [];
  this._queue = [];
  this._selectors = selectors;
  this.$ = container;
  this.close$ = this.$.getElementsByClassName(selectors.close)[0];
  this.navs$ = {
    left: this.$.getElementsByClassName(selectors.navLeft)[0],
    right: this.$.getElementsByClassName(selectors.navRight)[0]
  };
  this.slides$ = this.$.getElementsByClassName(selectors.slides)[0];
  
  this.$.addEventListener('open', this._handleOpenEvent.bind(this));
  this.$.addEventListener('close', this._handleCloseEvent.bind(this));
  this.close$.addEventListener('click', this._handleCloseBtnClick.bind(this));
  this.navs$.left.addEventListener('click', this._handleNavLeftClick.bind(this));
  this.navs$.right.addEventListener('click', this._handleNavRightClick.bind(this));
};

ViewModel.prototype.add = function addToQueue(input) {
  if (Array.isArray(input)) {
    this._queue.push(...input);
  } else {
    this._queue.push(input);
  }
  
  return this._queue;
};

ViewModel.prototype.flush = function flushQueue() {
  this._model = this._queue.slice();
  this._queue.length = 0;

  this._updateView();
  
  return this._model;
};

ViewModel.prototype.generatePhotoUrl = function generatePhotoUrl(photo) {
  return `https://farm${photo.farm}.staticflickr.com/${photo.server}/${photo.id}_${photo.secret}_z.jpg`;
};

ViewModel.prototype._computeSlideOffset = function computeSlideOffset() {
  const activeIndex = this._getActiveSlideIndex();
  const yOffset = 100 / this.slides$.children.length * activeIndex;

  this.slides$.style.transform = `translateX(-${yOffset}%)`;
};

ViewModel.prototype._getActiveSlideIndex = function getActiveSlideIndex() {
  const activeSlide = this.slides$.getElementsByClassName(this._selectors.active)[0];
  return Array.prototype.indexOf.call(this.slides$.children, activeSlide);
};

ViewModel.prototype._handleCloseEvent = function handleCloseEvent() {
 ...