Skip to content

Instantly share code, notes, and snippets.

@ncou

ncou/draggable popup app.js

Forked from akirattii/app.js
Created August 30, 2017 10:22
Show Gist options
  • Save ncou/96eb31a78746bd415e1f58a6c3b9a3dd to your computer and use it in GitHub Desktop.
Save ncou/96eb31a78746bd415e1f58a6c3b9a3dd to your computer and use it in GitHub Desktop.
Download ZIP
Draggable & Movable popup example using pure javascript.
Raw
draggable popup app.js
(function(){
var SCROLL_WIDTH = 24;
var btn_popup = document.getElementById("btn_popup");
var popup = document.getElementById("popup");
var popup_bar = document.getElementById("popup_bar");
var btn_close = document.getElementById("btn_close");
var smoke = document.getElementById("smoke");
//-- let the popup make draggable & movable.
var offset = { x: 0, y: 0 };
popup_bar.addEventListener('mousedown', mouseDown, false);
window.addEventListener('mouseup', mouseUp, false);
function mouseUp()
{
window.removeEventListener('mousemove', popupMove, true);
}
function mouseDown(e){
offset.x = e.clientX - popup.offsetLeft;
offset.y = e.clientY - popup.offsetTop;
window.addEventListener('mousemove', popupMove, true);
}
function popupMove(e){
popup.style.position = 'absolute';
var top = e.clientY - offset.y;
var left = e.clientX - offset.x;
popup.style.top = top + 'px';
popup.style.left = left + 'px';
}
//-- / let the popup make draggable & movable.
window.onkeydown = function(e){
if(e.keyCode == 27){ // if ESC key pressed
btn_close.click(e);
}
}
btn_popup.onclick = function(e){
// smoke
spreadSmoke(true);
// reset div position
popup.style.top = "4px";
popup.style.left = "4px";
popup.style.width = window.innerWidth - SCROLL_WIDTH + "px";
popup.style.height = window.innerHeight - SCROLL_WIDTH + "px";
popup.style.display = "block";
}
btn_close.onclick = function(e){
popup.style.display = "none";
smoke.style.display = "none";
}
window.onresize = function(e){
spreadSmoke();
}
function spreadSmoke(flg){
smoke.style.width = window.outerWidth + 100 + "px";
smoke.style.height = window.outerHeight + 100 + "px";
if (flg != undefined && flg == true) smoke.style.display = "block";
}
}());
Raw
main.html
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div>Hello, world!</div>
<button id="btn_popup">popup</button>
<div id="smoke" style="display:none;position:absolute;top:-30px;left:-30px;opacity:0.3;background-color:black;z-index:9998">...</div>
<div id="popup" style="display:none;background-color:green;position:absolute;top:0px;z-index:9999;box-shadow: 6px 6px 5px #888888;border-radius:6px;border:1px solid #4f4f4f;">
<div id="popup_bar" style="width:100%;background-color:#aaff66;position:relative;top:0;border-radius:6px 6px 0 0; text-align:center;height:24px;cursor:move">Title<span id="btn_close" style="float:right;cursor:pointer;padding-right:6px;">[X]</span></div>
<p>Popup Window.<br>Press ESC to close.</p>
</div>
</body>
<script src="app.js"></script>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment