Last active
August 29, 2015 14:10
-
-
Save hollasch/28eb2d316d92afdddb94 to your computer and use it in GitHub Desktop.
DOM Pick Handling
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> | |
| <title>Mouse Clicks Handling Example</title> | |
| <style type="text/css"> | |
| body { | |
| margin: 1em 0 0 10%; | |
| } | |
| p { font-family: sans-serif; } | |
| div.comment { | |
| max-width: 40em; | |
| margin: 1em 0 2em 0; | |
| } | |
| div.target { | |
| padding: 1em; | |
| } | |
| #div1 { | |
| width: 200px; | |
| height: 400px; | |
| background-color: #ff6666; | |
| } | |
| #div2 { | |
| width: 250px; | |
| height: 250px; | |
| margin: 40px 0 0 40px; | |
| background-color: #44cc44; | |
| } | |
| #div3 { | |
| width: 400px; | |
| height: 100px; | |
| margin: 40px 0 0 40px; | |
| background-color: #8888ff; | |
| } | |
| </style> | |
| <script type="text/javascript"> | |
| window.onload = function() { | |
| var div1 = document.querySelector("#div1"); | |
| var div2 = document.querySelector("#div2"); | |
| var div3 = document.querySelector("#div3"); | |
| var useCapture = false; | |
| var stopAt = 2; | |
| var handlePropagate = function(event, level) { | |
| if (stopAt === level) { | |
| alert("Stopping propagation at level " + level); | |
| event.stopPropagation(); | |
| } | |
| }; | |
| div1.addEventListener("click", function (event) { | |
| alert("You clicked on div 1."); | |
| handlePropagate(event, 1); | |
| }, useCapture); | |
| div2.addEventListener("click", function (event) { | |
| alert("You clicked on div 2."); | |
| console.log(event); | |
| handlePropagate(event, 2); | |
| }, useCapture); | |
| div3.addEventListener("click", function (event) { | |
| alert("You clicked on div 3."); | |
| console.log(event); | |
| handlePropagate(event, 3); | |
| }, useCapture); | |
| } | |
| </script> | |
| </head> | |
| <body> | |
| <div class="comment"> | |
| <p>This page demonstrates how to catch and handle click events on elements in HTML.</p> | |
| <p>Notice that clicking on any DOM child element also propagates to parent elements, regardless | |
| of whether the click point hits the visible parent element.</p> | |
| </div> | |
| <div id="div1" class="target"> | |
| Div 1 | |
| <div id="div2" class="target"> | |
| Div 2 | |
| <div id="div3" class="target"> | |
| Div 3 | |
| </div> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment