29. |
Q:
How can I disable the right mouse for a given HTML page?
A:
You may want to disable the right button of the mouse
from the browser, when you have at least one of
the following requirements:
- prevent the page from being reloaded
- prevent html/javascript source from being displayed
- prevent images from being copied
In order to achieve this, you must do two things:
- Open the page in a new window,
taking off the menu bar
You need to remove the menu bar, because
- the File option allows to retrieve the
page source
- the Reload/Refresh allows the user
to reload the page
Instead of calling your special page through
an <a href="..."> link
or through a <form ... >,
you must use some JavaScript to load such a page
in a new window without the menu bar.
See the following example, where page
/mypath/myspecial.htm
is opened in a new window without the menu bar:
<html>
<head>
. . .
<script type="text/javascript" language="JavaScript">
//=============================================================
// opnNoMBar() Open a window without menu bar
//=============================================================
function opnNoMBar(myUrl) {
nobar=window.open(myUrl,'','scrollbars,resizable,status');
nobar.focus()
}
</script>
. . .
</head>
<body>
. . .
<|-- the following line illustrates how to open a window
without menu bar through an anchor tag: -->
<a href="javascript:opnNoMBar('/mypath/myspecial.htm')">link
to my special page</a>
. . .
</body></html> |
|
For further information on opening a new window,
see this page.
- Disable the right mouse
This is easily done by adding the following to the <body ...> tag:
oncontextmenu="return false" .
- What about some menu bar of yours?
In some circumstances, you would like to have a menu bar
of yours to let users print the page, go back one page,
etc.
Here is an example of how you may implement this:
through the following HTML
<table border=1 bordercolor=#006699 bgcolor=#99ccff>
<tr><td>
<table border=0 bgcolor=#99ccff cellspacing=5>
<tr><td><a href="javascript:window.print()">
<img src="/cgidev/print.gif" alt="print" border=0></a>
</td>
<td><a href="javascript:history.go(-1)">
<img src="/cgidev/prvpag.gif" alt="previous page" border=0></a>
</td>
<td><a href="javascript:history.go(+1)">
<img src="/cgidev/nxtpag.gif" alt="next page" border=0></a>
</td></tr>
</td></tr></table>
</td></tr></table> |
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