Update '12/dragable.js'

12/dragable.js

@@ -54,3 +54,70 @@
 
 makeDragable('#shell_03header', '#shell_03')
 
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+   
+    function makeDragable2(dragHandle2, dragTarget2) {
+  let dragObj2 = null; //object to be moved
+  let xOffset2 = 0; //used to prevent dragged object jumping to mouse location
+  let yOffset2 = 0;
+
+  document.querySelector(dragHandle2).addEventListener("mousedown", startDrag2, true);
+  document.querySelector(dragHandle2).addEventListener("touchstart", startDrag2, true);
+
+  /*sets offset parameters and starts listening for mouse-move*/
+  function startDrag2(x) {
+    x.preventDefault();
+    x.stopPropagation();
+    dragObj2 = document.querySelector(dragTarget2);
+    dragObj2.style.position = "absolute";
+    let rect = dragObj2.getBoundingClientRect();
+
+    if (x.type=="mousedown") {
+      xOffset2 = x.clientX - rect.left; //clientX and getBoundingClientRect() both use viewable area adjusted when scrolling aka 'viewport'
+      yOffset2 = x.clientY - rect.top;
+      window.addEventListener('mousemove', dragObject2, true);
+    } else if(e.type=="touchstart") {
+      xOffset2 = x.targetTouches[0].clientX - rect.left;
+      yOffset2 = x.targetTouches[0].clientY - rect.top;
+      window.addEventListener('touchmove', dragObject2, true);
+    }
+  }
+
+  /*Drag object*/
+  function dragObject2(x) {
+    x.preventDefault();
+    x.stopPropagation();
+
+    if(dragObj2 == null) {
+      return; // if there is no object being dragged then do nothing
+    } else if(x.type=="mousemove") {
+      dragObj2.style.left = x.clientX-xOffset2 +"px"; // adjust location of dragged object so doesn't jump to mouse position
+      dragObj2.style.top = x.clientY-yOffset2 +"px";
+    } else if(x.type=="touchmove") {
+      dragObj2.style.left = x.targetTouches[0].clientX-xOffset2 +"px"; // adjust location of dragged object so doesn't jump to mouse position
+      dragObj2.style.top = x.targetTouches[0].clientY-yOffset2 +"px";
+    }
+  }
+
+  /*End dragging*/
+  document.onmouseup = function(e) {
+    if (dragObj2) {
+      dragObj2 = null;
+      window.removeEventListener('mousemove', dragObject2, true);
+      window.removeEventListener('touchmove', dragObject2, true);
+    }
+  }
+}
+
+makeDragable2('#week_05header', '#week_05')
+
+    
+    
+