I would like to trigger the save of a page's content from within the
browser session and thought that using nsIWebBrowserPersist
saveDocument to accomplish this. My test case is a simple html page
with an onload function named on the body (see below).
During the call to saveDocument I am receiving the error "uncaught
exception: [Exception... "Component returned failure code: 0x80004005
(NS_ERROR_FAILURE) [nsIWebBrowserPersist.saveDocument]" nsresult:
"0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: file:///<path
to file removed>/trysave.html :: trysave :: line 19" data: no]"
Unfortunately NS_ERROR_FAILURE seems to be a very generic error.
Is what I am attempting actually permissible and if so does anyone
have an idea what I might be doing wrong.
Thanks in advance,
Pete
HTML Source
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://
www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Title</title>
<script type="text/javascript">
function trysave() {
netscape.security.PrivilegeManager.enablePrivilege
('UniversalXPConnect');
with(Components.interfaces) {
var Cc = Components.classes;
var file = Cc["@mozilla.org/file/local;1"].createInstance
(nsILocalFile);
file.initWithPath("~/trysave.html");
var dataPath = Cc["@mozilla.org/file/local;1"].createInstance
(nsILocalFile);
file.initWithPath("~/trysave");
var wbp =
Cc['@mozilla.org/embedding/browser/nsWebBrowserPersist;1']
.createInstance(nsIWebBrowserPersist);
const nsIWBP = Components.interfaces.nsIWebBrowserPersist;
wbp.persistFlags = nsIWBP.PERSIST_FLAGS_FROM_CACHE |
nsIWBP.PERSIST_FLAGS_AUTODETECT_APPLY_CONVERSION |
nsIWBP.PERSIST_FLAGS_REPLACE_EXISTING_FILES |
nsIWBP.PERSIST_FLAGS_NO_BASE_TAG_MODIFICATIONS |
nsIWBP.PERSIST_FLAGS_DONT_FIXUP_LINKS;
var encodingFlags = nsIWBP.ENCODE_FLAGS_RAW |
nsIWBP.ENCODE_FLAGS_ENCODE_W3C_ENTITIES;
wbp.saveDocument(document, file, null, null, 0, 0);
}
}
</script>
</head>
<body onload="trysave();">
now is the time for all good men to come to the aid of their country!
</body>
</html>
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