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This article mainly introduces the detailed use of js oncontextmenu event. Friends who need it can refer to
Definition and use
oncontextmenu event when the user right-clicks on the element Triggers and opens context menu when mouse is pressed.
Note: All browsers support the oncontextmenu event, and the contextmenu element is only supported by the Firefox browser.
Example
Execute JavaScript when the user right-clicks the mouse on the e388a4556c0f65e1904146cc1a846bee element:
<p oncontextmenu="myFunction()" contextmenu="mymenu">
Use the oncontextmenu event to disable the right-click menu
onconTextmenu=window.event.returnValue=false; Disable the right-click menu. Use this to prohibit copying.
Add attribute code to 6c04bd5ca3fcae76e30b72ad730ca86d:
<script> window.document.oncontextmenu = function(){ //alert('请不要点击鼠标右键!'); return false; } </script>
oncontextmenu="return false"
onselectstart=" return false" prohibits selection of content on the webpage
oncopy="return false" prevents copying of content selected by the user on the webpage
prevents users from saving webpages:
Useb28da9cae6957a4035808afbee1dbdf081829a33a9f39f39c2cc9fa7292ccbe1065276f04003e4622c4fe6b64f465b88f920f363442462683100636cb2662870 tag can prevent the webpage from being saved directly, but it cannot prevent the webpage from being downloaded using tools.
* is a wildcard character.
Example 1:
<html> <head> <title>OnContextMenu事件</title> <script language="JavaScript"> <!-- function uFunction() { document.all.infop.innerHTML='你按下了鼠标右键,但是右键菜单不能 显示!'; } function uFunction2() { document.all.infop.innerHTML='你按下了Ctrl+鼠标右键,可以 显示右键菜单。'; } //--> </script> </head> <body oncontextmenu="if(!event.ctrlKey){uFunction();return false}else{uFunction2()}"> <p id="infop">你按下了鼠标右键,但是右键菜单不能 显示!<br>你按下了Ctrl+鼠标右键,可以显示右键菜单。 </p> </body> </html>
Example 2:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html> <head> <title>利用OnMousedown和OnContextmenu为表格添加鼠标左中右键单击的处理</title> <script type="text/javascript"> var keyArray = new Array( new Array(0, "右键"), new Array(1, "左键"), new Array(2, "右键"), // 测试在IE7中按右键是2,在Maxthon2.0正式版中是0 new Array(3, "左键右键同时按"),//在IE7中我测试捕获不到,慎用 new Array(4, "中键") //测试同时按两个键更多的表示 //new Array(6, "中键右键同时按") ); function Click() { var message = GetKeyMessage(event.button); alert(message); if (event.button == 2 || event.button == 0) //按右键,// 测试在IE7中按右键是2,在Maxthon2.0正式版中是0 { //处理代码 } } function GetKeyMessage(button) { for (var i = 0; i < keyArray.length; i++) { if (keyArray[i][0] == button) { return keyArray[i][1] + ", event.button = " + button; } } return "未知组合键, event.button = " + button; } </script> </head> <body> <table cellpadding="0" cellspacing="0" border="1"> <tr> <!--oncontextmenu="return false"屏蔽快捷菜单--> <td oncontextmenu="return false" onmousedown="Click()">请分别用左键、右键、中键、左键右键组合点这里测试</td> </tr> <tr> <td>这个表格没有处理,点这里没反应</td> </tr> </table> </body> </html>
The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.
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