initial commit

node_modules/@materializecss/materialize/js/slider.js

@@ -0,0 +1,359 @@
+(function($, anim) {
+  'use strict';
+
+  let _defaults = {
+    indicators: true,
+    height: 400,
+    duration: 500,
+    interval: 6000
+  };
+
+  /**
+   * @class
+   *
+   */
+  class Slider extends Component {
+    /**
+     * Construct Slider instance and set up overlay
+     * @constructor
+     * @param {Element} el
+     * @param {Object} options
+     */
+    constructor(el, options) {
+      super(Slider, el, options);
+
+      this.el.M_Slider = this;
+
+      /**
+       * Options for the modal
+       * @member Slider#options
+       * @prop {Boolean} [indicators=true] - Show indicators
+       * @prop {Number} [height=400] - height of slider
+       * @prop {Number} [duration=500] - Length in ms of slide transition
+       * @prop {Number} [interval=6000] - Length in ms of slide interval
+       */
+      this.options = $.extend({}, Slider.defaults, options);
+
+      // setup
+      this.$slider = this.$el.find('.slides');
+      this.$slides = this.$slider.children('li');
+      this.activeIndex = this.$slides
+        .filter(function(item) {
+          return $(item).hasClass('active');
+        })
+        .first()
+        .index();
+      if (this.activeIndex != -1) {
+        this.$active = this.$slides.eq(this.activeIndex);
+      }
+
+      this._setSliderHeight();
+
+      // Set initial positions of captions
+      this.$slides.find('.caption').each((el) => {
+        this._animateCaptionIn(el, 0);
+      });
+
+      // Move img src into background-image
+      this.$slides.find('img').each((el) => {
+        let placeholderBase64 =
+          'data:image/gif;base64,R0lGODlhAQABAIABAP///wAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';
+        if ($(el).attr('src') !== placeholderBase64) {
+          $(el).css('background-image', 'url("' + $(el).attr('src') + '")');
+          $(el).attr('src', placeholderBase64);
+        }
+      });
+
+      this._setupIndicators();
+
+      // Show active slide
+      if (this.$active) {
+        this.$active.css('display', 'block');
+      } else {
+        this.$slides.first().addClass('active');
+        anim({
+          targets: this.$slides.first()[0],
+          opacity: 1,
+          duration: this.options.duration,
+          easing: 'easeOutQuad'
+        });
+
+        this.activeIndex = 0;
+        this.$active = this.$slides.eq(this.activeIndex);
+
+        // Update indicators
+        if (this.options.indicators) {
+          this.$indicators.eq(this.activeIndex).addClass('active');
+        }
+      }
+
+      // Adjust height to current slide
+      this.$active.find('img').each((el) => {
+        anim({
+          targets: this.$active.find('.caption')[0],
+          opacity: 1,
+          translateX: 0,
+          translateY: 0,
+          duration: this.options.duration,
+          easing: 'easeOutQuad'
+        });
+      });
+
+      this._setupEventHandlers();
+
+      // auto scroll
+      this.start();
+    }
+
+    static get defaults() {
+      return _defaults;
+    }
+
+    static init(els, options) {
+      return super.init(this, els, options);
+    }
+
+    /**
+     * Get Instance
+     */
+    static getInstance(el) {
+      let domElem = !!el.jquery ? el[0] : el;
+      return domElem.M_Slider;
+    }
+
+    /**
+     * Teardown component
+     */
+    destroy() {
+      this.pause();
+      this._removeIndicators();
+      this._removeEventHandlers();
+      this.el.M_Slider = undefined;
+    }
+
+    /**
+     * Setup Event Handlers
+     */
+    _setupEventHandlers() {
+      this._handleIntervalBound = this._handleInterval.bind(this);
+      this._handleIndicatorClickBound = this._handleIndicatorClick.bind(this);
+
+      if (this.options.indicators) {
+        this.$indicators.each((el) => {
+          el.addEventListener('click', this._handleIndicatorClickBound);
+        });
+      }
+    }
+
+    /**
+     * Remove Event Handlers
+     */
+    _removeEventHandlers() {
+      if (this.options.indicators) {
+        this.$indicators.each((el) => {
+          el.removeEventListener('click', this._handleIndicatorClickBound);
+        });
+      }
+    }
+
+    /**
+     * Handle indicator click
+     * @param {Event} e
+     */
+    _handleIndicatorClick(e) {
+      let currIndex = $(e.target).index();
+      this.set(currIndex);
+    }
+
+    /**
+     * Handle Interval
+     */
+    _handleInterval() {
+      let newActiveIndex = this.$slider.find('.active').index();
+      if (this.$slides.length === newActiveIndex + 1) newActiveIndex = 0;
+      // loop to start
+      else newActiveIndex += 1;
+
+      this.set(newActiveIndex);
+    }
+
+    /**
+     * Animate in caption
+     * @param {Element} caption
+     * @param {Number} duration
+     */
+    _animateCaptionIn(caption, duration) {
+      let animOptions = {
+        targets: caption,
+        opacity: 0,
+        duration: duration,
+        easing: 'easeOutQuad'
+      };
+
+      if ($(caption).hasClass('center-align')) {
+        animOptions.translateY = -100;
+      } else if ($(caption).hasClass('right-align')) {
+        animOptions.translateX = 100;
+      } else if ($(caption).hasClass('left-align')) {
+        animOptions.translateX = -100;
+      }
+
+      anim(animOptions);
+    }
+
+    /**
+     * Set height of slider
+     */
+    _setSliderHeight() {
+      // If fullscreen, do nothing
+      if (!this.$el.hasClass('fullscreen')) {
+        if (this.options.indicators) {
+          // Add height if indicators are present
+          this.$el.css('height', this.options.height + 40 + 'px');
+        } else {
+          this.$el.css('height', this.options.height + 'px');
+        }
+        this.$slider.css('height', this.options.height + 'px');
+      }
+    }
+
+    /**
+     * Setup indicators
+     */
+    _setupIndicators() {
+      if (this.options.indicators) {
+        this.$indicators = $('<ul class="indicators"></ul>');
+        this.$slides.each((el, index) => {
+          let $indicator = $('<li class="indicator-item"></li>');
+          this.$indicators.append($indicator[0]);
+        });
+        this.$el.append(this.$indicators[0]);
+        this.$indicators = this.$indicators.children('li.indicator-item');
+      }
+    }
+
+    /**
+     * Remove indicators
+     */
+    _removeIndicators() {
+      this.$el.find('ul.indicators').remove();
+    }
+
+    /**
+     * Cycle to nth item
+     * @param {Number} index
+     */
+    set(index) {
+      // Wrap around indices.
+      if (index >= this.$slides.length) index = 0;
+      else if (index < 0) index = this.$slides.length - 1;
+
+      // Only do if index changes
+      if (this.activeIndex != index) {
+        this.$active = this.$slides.eq(this.activeIndex);
+        let $caption = this.$active.find('.caption');
+        this.$active.removeClass('active');
+
+        anim({
+          targets: this.$active[0],
+          opacity: 0,
+          duration: this.options.duration,
+          easing: 'easeOutQuad',
+          complete: () => {
+            this.$slides.not('.active').each((el) => {
+              anim({
+                targets: el,
+                opacity: 0,
+                translateX: 0,
+                translateY: 0,
+                duration: 0,
+                easing: 'easeOutQuad'
+              });
+            });
+          }
+        });
+
+        this._animateCaptionIn($caption[0], this.options.duration);
+
+        // Update indicators
+        if (this.options.indicators) {
+          this.$indicators.eq(this.activeIndex).removeClass('active');
+          this.$indicators.eq(index).addClass('active');
+        }
+
+        anim({
+          targets: this.$slides.eq(index)[0],
+          opacity: 1,
+          duration: this.options.duration,
+          easing: 'easeOutQuad'
+        });
+
+        anim({
+          targets: this.$slides.eq(index).find('.caption')[0],
+          opacity: 1,
+          translateX: 0,
+          translateY: 0,
+          duration: this.options.duration,
+          delay: this.options.duration,
+          easing: 'easeOutQuad'
+        });
+
+        this.$slides.eq(index).addClass('active');
+        this.activeIndex = index;
+
+        // Reset interval
+        this.start();
+      }
+    }
+
+    /**
+     * Pause slider interval
+     */
+    pause() {
+      clearInterval(this.interval);
+    }
+
+    /**
+     * Start slider interval
+     */
+    start() {
+      clearInterval(this.interval);
+      this.interval = setInterval(
+        this._handleIntervalBound,
+        this.options.duration + this.options.interval
+      );
+    }
+
+    /**
+     * Move to next slide
+     */
+    next() {
+      let newIndex = this.activeIndex + 1;
+
+      // Wrap around indices.
+      if (newIndex >= this.$slides.length) newIndex = 0;
+      else if (newIndex < 0) newIndex = this.$slides.length - 1;
+
+      this.set(newIndex);
+    }
+
+    /**
+     * Move to previous slide
+     */
+    prev() {
+      let newIndex = this.activeIndex - 1;
+
+      // Wrap around indices.
+      if (newIndex >= this.$slides.length) newIndex = 0;
+      else if (newIndex < 0) newIndex = this.$slides.length - 1;
+
+      this.set(newIndex);
+    }
+  }
+
+  M.Slider = Slider;
+
+  if (M.jQueryLoaded) {
+    M.initializeJqueryWrapper(Slider, 'slider', 'M_Slider');
+  }
+})(cash, M.anime);