Embed a web browser in a cross platform Gtk application

Question

I need to embed a very simple browser ( can parse HTML, and JS Ext ) in a Gtk Widget hopefully in gtkmm. I looked into gtkmozembed, but the c++ wrapper is very out dated, so I tried to just write it in C, but I'm already committed to Gtk+ 3.0, and gtkmozembed doesn't work with Gtk+ 3.0. Is there a way to just extend Gtk::Widget and put a gecko parser in it? Can't really find any gecko documentation, I keep getting redirected to gtkmozembed.

Any ideas/suggestions would be greatly appreciated.

Edit: @Mark After I tried using Webkitgtk, I get the following output and the application crashes.

** (ttocui_gtk:16360): DEBUG: NP_Initialize
** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded
** (ttocui_gtk:16360): DEBUG: NP_Initialize
** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded
** (ttocui_gtk:16360): DEBUG: NP_Initialize
** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded
** (ttocui_gtk:16360): DEBUG: NP_Initialize
** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded
** (ttocui_gtk:16360): DEBUG: NP_Initialize
** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded
** (ttocui_gtk:16360): DEBUG: NP_Initialize
** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded
** (ttocui_gtk:16360): DEBUG: NP_Initialize
** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded
** (ttocui_gtk:16360): DEBUG: NP_Initialize
** (ttocui_gtk:16360): DEBUG: NP_Initialize succeeded

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_foreach: assertion `hash_table != NULL' failed

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_insert_internal: assertion `hash_table != NULL' failed

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
*** NSPlugin Wrapper *** ERROR: no valid NPP -> PluginInstance mapping found

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
*** NSPlugin Wrapper *** ERROR: no valid NPP -> PluginInstance mapping found

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_insert_internal: assertion `hash_table != NULL' failed

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_insert_internal: assertion `hash_table != NULL' failed

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_find: assertion `hash_table != NULL' failed

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_insert_internal: assertion `hash_table != NULL' failed

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
*** NSPlugin Wrapper *** ERROR: no valid NPP -> PluginInstance mapping found

(ttocui_gtk:16360): GLib-CRITICAL **: g_hash_table_lookup: assertion `hash_table != NULL' failed
ttocui_gtk: /build/buildd/nspluginwrapper-1.2.2/src/npw-rpc.c:1225: do_recv_NPObject: Assertion `npobj != ((void *)0)' failed.
*** NSPlugin Viewer  *** ERROR: NPN_GetProperty() wait for reply: Connection reset by peer
*** NSPlugin Viewer  *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-viewer.c:898):invoke_NPN_GetValue: assertion failed: (rpc_method_invoke_possible(g_rpc_connection))
Aborted
*** NSPlugin Viewer  *** WARNING: unhandled variable 18 (<unknown variable>) in NPN_GetValue()
*** NSPlugin Viewer  *** WARNING:(/build/buildd/nspluginwrapper-1.2.2/src/npw-viewer.c:898):invoke_NPN_GetValue: assertion failed: (rpc_method_invoke_possible(g_rpc_connection))

The .js file is included in the head tag of my html pages...

<link rel="stylesheet" type="text/css" href="/ext3.2.1/resources/css/ext-all.css">
<link rel="stylesheet" type="text/css" href="/ext3.2.1/resources/css/xtheme-access.css"/>

<script type="text/javascript" src="/ext3.2.1/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="/ext3.2.1/ext-all-debug.js"></script>

Answer 1

Neither does gtkmozembed work with new versions of Gecko, if my memory serves me. What you are looking for is WebkitGTK, at least if you're not specifically tied to Gecko.