From e251daa01fba56f60625f8d77c2fea0292cc3a97 Mon Sep 17 00:00:00 2001
From: Lokesh Dhakar <lokesh.dhakar@gmail.com>
Date: Sun, 28 Apr 2019 21:12:48 -0700
Subject: [PATCH] Update demo code to be test specific. Remove jQuery

---
 examples/js/demo.js | 161 ++++++++++----------------------------------
 1 file changed, 36 insertions(+), 125 deletions(-)

diff --git a/examples/js/demo.js b/examples/js/demo.js
index f4db550..47a4d1c 100644
--- a/examples/js/demo.js
+++ b/examples/js/demo.js
@@ -1,137 +1,48 @@
-/*! Modernizr 2.6.2 (Custom Build) | MIT & BSD
- * Build: http://modernizr.com/download/#-canvas-draganddrop-touch-shiv-cssclasses-teststyles-hasevent-prefixes-css_pointerevents-file_api-load
- */
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+// Run Color Thief functions and display results below image.
+// We also log execution time of functions for display.
+const showColorsForImage = function(image, section) {
+    const start = Date.now();
+    const color = colorThief.getColor(image);
+    const elapsedTimeForGetColor = Date.now() - start;
+    const palette = colorThief.getPalette(image);
+    const elapsedTimeForGetPalette = Date.now() - start + elapsedTimeForGetColor;
 
-$(document).ready(function () {
-
-  // ---------------------
-  // Color Thief demo code
-  // ---------------------
-  var imageArray = {images: [
-      {'file': 'examples/img/photo1.jpg'},
-      {'file': 'examples/img/photo2.jpg'},
-      {'file': 'examples/img/photo3.jpg'}
-  ]};
-
-  // Render example images
-  var examplesHTML = Mustache.to_html($('#image-section-template').html(), imageArray);
-  $('#example-images').append(examplesHTML);
-
-  // Event handlers
-  $('.run-functions-button').on('click', function(event) {
-    var $this = $(this);
-    $this.text('...');
-    var $imageSection     = $this.closest('.image-section');
-    var $colorThiefOutput = $imageSection.find('.color-thief-output');
-    var $targetimage      = $imageSection.find('.target-image');
-    showColorsForImage($targetimage, $imageSection);
-  });
-
-  var colorThief = new ColorThief();
-
-  // Run Color Thief functions and display results below image.
-  // We also log execution time of functions for display.
-  var showColorsForImage = function($image, $imageSection ) {
-    var image                    = $image[0];
-    var start                    = Date.now();
-    var color                    = colorThief.getColor(image);
-    var elapsedTimeForGetColor   = Date.now() - start;
-    var palette                  = colorThief.getPalette(image);
-    var elapsedTimeForGetPalette = Date.now() - start + elapsedTimeForGetColor;
-
-    var colorThiefOutput = {
+    const output = {
       color: color,
+      colorStr: color.toString(),
       palette: palette,
+      paletteStr: palette.toString(),
       elapsedTimeForGetColor: elapsedTimeForGetColor,
       elapsedTimeForGetPalette: elapsedTimeForGetPalette
     };
-    var colorThiefOuputHTML = Mustache.to_html($('#color-thief-output-template').html(), colorThiefOutput);
+    const ouputHTML = Mustache.to_html(document.getElementById('output-tpl').innerHTML, output);
 
-    $imageSection.addClass('with-color-thief-output');
-    $imageSection.find('.run-functions-button').addClass('hide');
+    const outputEl = section.querySelector('.output');
+    outputEl.innerHTML = ouputHTML;
+};
 
-    setTimeout(function(){
-      $imageSection.find('.color-thief-output').append(colorThiefOuputHTML).slideDown();
-      // If the color-thief-output div is not in the viewport or cut off, scroll down.
-      var windowHeight          = $(window).height();
-      var currentScrollPosition = $('body').scrollTop()
-      var outputOffsetTop       = $imageSection.find('.color-thief-output').offset().top
-      if ((currentScrollPosition < outputOffsetTop) && (currentScrollPosition + windowHeight - 250 < outputOffsetTop)) {
-         $('body').animate({scrollTop: outputOffsetTop - windowHeight + 200 + "px"});
-      }
-    }, 300);
-  };
+var colorThief = new ColorThief();
 
-  // Drag'n'drop demo
-  // Thanks to Nathan Spady (http://nspady.com/) who did the bulk of the drag'n'drop work.
+var images = [
+    'black.png',
+    'red.png',
+    'rainbow-horizontal.png',
+    'rainbow-vertical.png',
+    // 'transparent.png',
+    // 'white.png',
+];
 
-  // Setup the drag and drop behavior if supported
-  if (Modernizr.draganddrop && !!window.FileReader && !isMobile()) {
+// Render example images
+var examplesHTML = Mustache.to_html(document.getElementById('image-tpl').innerHTML, images);
+document.getElementById('example-images').innerHTML = examplesHTML;
 
-    $('#drag-drop').show();
-    var $dropZone = $('#drop-zone');
-    var handleDragEnter = function(event){
-      $dropZone.addClass('dragging');
-      return false;
-    };
-    var handleDragLeave = function(event){
-      $dropZone.removeClass('dragging');
-      return false;
-    };
-    var handleDragOver = function(event){
-      return false;
-    };
-    var handleDrop = function(event){
-      $dropZone.removeClass('dragging');
-      handleFiles(event.originalEvent.dataTransfer.files);
-      return false;
-    };
-    $dropZone
-      .on('dragenter', handleDragEnter)
-      .on('dragleave', handleDragLeave)
-      .on('dragover', handleDragOver)
-      .on('drop', handleDrop);
-  }
-
-  function handleFiles(files) {
-    var $draggedImages = $('#dragged-images');
-    var imageType      = /image.*/;
-    var fileCount      = files.length;
-
-    for (var i = 0; i < fileCount; i++) {
-      var file = files[i];
-
-      if (file.type.match(imageType)) {
-        var reader = new FileReader();
-        reader.onload = function(event) {
-            imageInfo = { images: [
-                {'class': 'dropped-image', file: event.target.result}
-              ]};
-
-            var imageSectionHTML = Mustache.to_html($('#image-section-template').html(), imageInfo);
-            $draggedImages.prepend(imageSectionHTML);
-
-            var $imageSection = $draggedImages.find('.image-section').first();
-            var $image        = $('.dropped-image .target-image');
-
-            // Must wait for image to load in DOM, not just load from FileReader
-            $image.on('load', function() {
-              showColorsForImage($image, $imageSection);
-            });
-          };
-        reader.readAsDataURL(file);
-      } else {
-        alert('File must be a supported image type.');
-      }
+document.querySelectorAll('.image').forEach((image) => {
+    const section = image.closest('.image-section');
+    if (this.complete) {
+        showColorsForImage(image, section);
+    } else {
+        image.addEventListener('load', function() {
+            showColorsForImage(image, section);
+        });
     }
-  }
-
-  function isMobile() {
-    // Implementation of http://detectmobilebrowsers.com/
-    var check = false;
-    (function(a){if(/(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|xda|xiino/i.test(a)||/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(a.substr(0,4))) check = true;})(navigator.userAgent||navigator.vendor||window.opera);
-    return check;
-  };
-
-});
+})