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| (Empty) |
1 <html> | |
2 <head> | |
3 <style> | |
4 body { margin: 0; } | |
5 #drag_div { | |
6 width: 100%; | |
7 height: 100%; | |
8 background: blue; | |
9 position: relative; | |
10 } | |
11 </style> | |
12 <script> | |
13 offsetX = 0; | |
14 offsetY = 0; | |
15 | |
16 function drag(event) { | |
17 d = document.getElementById('drag_div'); | |
18 offsetX = event.clientX - d.offsetLeft; | |
19 offsetY = event.clientY - d.offsetTop; | |
20 } | |
21 | |
22 function drop(event) { | |
23 d = document.getElementById('drag_div'); | |
24 d.style.left = event.clientX - offsetX; | |
25 d.style.top = event.clientY - offsetY; | |
26 } | |
27 | |
28 function touchStart(event) { | |
29 d = document.getElementById('drag_div'); | |
30 offsetX = event.touches[0].clientX - d.offsetLeft; | |
31 offsetY = event.touches[0].clientY - d.offsetTop; | |
32 } | |
33 | |
34 function touchEnd(event) { | |
35 d = document.getElementById('drag_div'); | |
36 d.style.left = event.changedTouches[0].clientX - offsetX; | |
37 d.style.top = event.changedTouches[0].clientY - offsetY; | |
38 } | |
39 | |
40 </script> | |
41 </head> | |
42 | |
43 <body id ="body"> | |
44 <div id="drag_div"> </div> | |
45 </body> | |
46 <script> | |
47 document.getElementById('body').addEventListener('mouseup', drop); | |
48 document.getElementById('body').addEventListener('touchend', touchEnd); | |
49 document.getElementById('drag_div').addEventListener('mousedown', drag); | |
50 document.getElementById('drag_div').addEventListener('touchstart', touchStart)
; | |
51 </script> | |
52 </html> | |
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