https://fourlady1988.com/wp-content/plugins/essential-addons-eleme…/assets/js/jquery.twentytwenty.js?ver=1.0

1(function($){
2
3  $.fn.twentytwenty = function(options) {
4    var options = $.extend({
5      default_offset_pct: 0.5,
6      orientation: 'horizontal',
7      before_label: 'Before',
8      after_label: 'After',
9      no_overlay: false,
10      move_slider_on_hover: false,
11      move_with_handle_only: true,
12      click_to_move: false
13    }, options);
14
15    return this.each(function() {
16
17      var sliderPct = options.default_offset_pct;
18      var container = $(this);
19      var sliderOrientation = options.orientation;
20      var beforeDirection = (sliderOrientation === 'vertical') ? 'down' : 'left';
21      var afterDirection = (sliderOrientation === 'vertical') ? 'up' : 'right';
22
23
24      container.wrap("<div class='twentytwenty-wrapper twentytwenty-" + sliderOrientation + "'></div>");
25      if(!options.no_overlay) {
26        container.append("<div class='twentytwenty-overlay'></div>");
27      }
28      var beforeImg = container.find("img:first");
29      var afterImg = container.find("img:last");
30      container.append("<div class='twentytwenty-handle'></div>");
31      var slider = container.find(".twentytwenty-handle");
32      slider.append("<span class='twentytwenty-" + beforeDirection + "-arrow'></span>");
33      slider.append("<span class='twentytwenty-" + afterDirection + "-arrow'></span>");
34      container.addClass("twentytwenty-container");
35      beforeImg.addClass("twentytwenty-before");
36      afterImg.addClass("twentytwenty-after");
37
38      var overlay = container.find(".twentytwenty-overlay");
39      overlay.append("<div class='twentytwenty-before-label' data-content='"+options.before_label+"'></div>");
40      overlay.append("<div class='twentytwenty-after-label' data-content='"+options.after_label+"'></div>");
41
42      var calcOffset = function(dimensionPct) {
43        var w = beforeImg.width();
44        var h = beforeImg.height();
45        return {
46          w: w+"px",
47          h: h+"px",
48          cw: (dimensionPct*w)+"px",
49          ch: (dimensionPct*h)+"px"
50        };
51      };
52
53      var adjustContainer = function(offset) {
54      	if (sliderOrientation === 'vertical') {
55          beforeImg.css("clip", "rect(0,"+offset.w+","+offset.ch+",0)");
56          afterImg.css("clip", "rect("+offset.ch+","+offset.w+","+offset.h+",0)");
57      	}
58      	else {
59          beforeImg.css("clip", "rect(0,"+offset.cw+","+offset.h+",0)");
60          afterImg.css("clip", "rect(0,"+offset.w+","+offset.h+","+offset.cw+")");
61    	}
62        container.css("height", offset.h);
63      };
64
65      var adjustSlider = function(pct) {
66        var offset = calcOffset(pct);
67        slider.css((sliderOrientation==="vertical") ? "top" : "left", (sliderOrientation==="vertical") ? offset.ch : offset.cw);
68        adjustContainer(offset);
69      };
70
71      // Return the number specified or the min/max number if it outside the range given.
72      var minMaxNumber = function(num, min, max) {
73        return Math.max(min, Math.min(max, num));
74      };
75
76      // Calculate the slider percentage based on the position.
77      var getSliderPercentage = function(positionX, positionY) {
78        var sliderPercentage = (sliderOrientation === 'vertical') ?
79          (positionY-offsetY)/imgHeight :
80          (positionX-offsetX)/imgWidth;
81
82        return minMaxNumber(sliderPercentage, 0, 1);
83      };
84
85
86      $(window).on("resize.twentytwenty", function(e) {
87        adjustSlider(sliderPct);
88      });
89
90      var offsetX = 0;
91      var offsetY = 0;
92      var imgWidth = 0;
93      var imgHeight = 0;
94      var onMoveStart = function(e) {
95        if (((e.distX > e.distY && e.distX < -e.distY) || (e.distX < e.distY && e.distX > -e.distY)) && sliderOrientation !== 'vertical') {
96          e.preventDefault();
97        }
98        else if (((e.distX < e.distY && e.distX < -e.distY) || (e.distX > e.distY && e.distX > -e.distY)) && sliderOrientation === 'vertical') {
99          e.preventDefault();
100        }
101        container.addClass("active");
102        offsetX = container.offset().left;
103        offsetY = container.offset().top;
104        imgWidth = beforeImg.width(); 
105        imgHeight = beforeImg.height();          
106      };
107      var onMove = function(e) {
108        if (container.hasClass("active")) {
109          sliderPct = getSliderPercentage(e.pageX, e.pageY);
110          adjustSlider(sliderPct);
111        }
112      };
113      var onMoveEnd = function() {
114          container.removeClass("active");
115      };
116
117      var moveTarget = options.move_with_handle_only ? slider : container;
118      moveTarget.on("movestart",onMoveStart);
119      moveTarget.on("move",onMove);
120      moveTarget.on("moveend",onMoveEnd);
121
122      if (options.move_slider_on_hover) {
123        container.on("mouseenter", onMoveStart);
124        container.on("mousemove", onMove);
125        container.on("mouseleave", onMoveEnd);
126      }
127
128      slider.on("touchmove", function(e) {
129        e.preventDefault();
130      });
131
132      container.find("img").on("mousedown", function(event) {
133        event.preventDefault();
134      });
135
136      if (options.click_to_move) {
137        container.on('click', function(e) {
138          offsetX = container.offset().left;
139          offsetY = container.offset().top;
140          imgWidth = beforeImg.width();
141          imgHeight = beforeImg.height();
142
143          sliderPct = getSliderPercentage(e.pageX, e.pageY);
144          adjustSlider(sliderPct);
145        });
146      }
147
148      $(window).trigger("resize.twentytwenty");
149    });
150  };
151
152})(jQuery);