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/*
 * evolution-web-inspector.c
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 */

#include <config.h>
#include <glib/gi18n-lib.h>

#include <libebackend/libebackend.h>

#include <e-util/e-util.h>

/* Standard GObject macros */
#define E_TYPE_WEB_INSPECTOR \
    (e_web_inspector_get_type ())
#define E_WEB_INSPECTOR(obj) \
    (G_TYPE_CHECK_INSTANCE_CAST \
    ((obj), E_TYPE_WEB_INSPECTOR, EWebInspector))

typedef struct _EWebInspector EWebInspector;
typedef struct _EWebInspectorClass EWebInspectorClass;

struct _EWebInspector {
    EExtension parent;
};

struct _EWebInspectorClass {
    EExtensionClass parent_class;
};

static const gchar *ui =
"<ui>"
"  <popup name='context'>"
"    <placeholder name='inspect-menu' >"
"      <menuitem action='inspect'/>"
"    </placeholder>"
"  </popup>"
"</ui>";

/* Module Entry Points */
void e_module_load (GTypeModule *type_module);
void e_module_unload (GTypeModule *type_module);

/* Forward Declarations */
GType e_web_inspector_get_type (void);

G_DEFINE_DYNAMIC_TYPE (EWebInspector, e_web_inspector, E_TYPE_EXTENSION)

static EWebView *
web_inspector_get_web_view (EWebInspector *extension)
{
    EExtensible *extensible;

    extensible = e_extension_get_extensible (E_EXTENSION (extension));

    return E_WEB_VIEW (extensible);
}

static void
web_inspector_action_inspect_cb (GtkAction *action,
                                 EWebInspector *extension)
{
    WebKitWebInspector *inspector;
    EWebView *web_view;

    web_view = web_inspector_get_web_view (extension);
    inspector = webkit_web_view_get_inspector (WEBKIT_WEB_VIEW (web_view));

    webkit_web_inspector_show (inspector);
}

static GtkActionEntry inspect_entries[] = {

    { "inspect",
      NULL,
      N_("_Inspect..."),
      NULL,
      N_("Inspect the HTML content (debugging feature)"),
      G_CALLBACK (web_inspector_action_inspect_cb) }
};

static WebKitWebView *
web_inspector_inspect_web_view_cb (WebKitWebInspector *inspector,
                                   EWebInspector *extension)
{
    GtkWidget *web_view;
    GtkWidget *window;
    const gchar *title;

    title = _("Evolution Web Inspector");
    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
    gtk_window_set_title (GTK_WINDOW (window), title);
    gtk_widget_set_size_request (window, 600, 400);
    gtk_widget_show (window);

    web_view = webkit_web_view_new ();
    gtk_container_add (GTK_CONTAINER (window), web_view);
    gtk_widget_show (web_view);

    return WEBKIT_WEB_VIEW (web_view);
}

static void
web_inspector_constructed (GObject *object)
{
    EWebInspector *extension;
    WebKitWebSettings *settings;
    WebKitWebInspector *inspector;
    GtkActionGroup *action_group;
    GtkUIManager *ui_manager;
    EWebView *web_view;
    GError *error = NULL;

    extension = E_WEB_INSPECTOR (object);
    web_view = web_inspector_get_web_view (extension);

    ui_manager = e_web_view_get_ui_manager (web_view);
    action_group = e_web_view_get_action_group (web_view, "standard");

    settings = webkit_web_view_get_settings (WEBKIT_WEB_VIEW (web_view));
    g_object_set (settings, "enable-developer-extras", TRUE, NULL);

    inspector = webkit_web_view_get_inspector (WEBKIT_WEB_VIEW (web_view));

    g_signal_connect (
        inspector, "inspect-web-view",
        G_CALLBACK (web_inspector_inspect_web_view_cb), extension);

    gtk_action_group_add_actions (
        action_group, inspect_entries,
        G_N_ELEMENTS (inspect_entries), extension);

    /* Because we are loading from a hard-coded string, there is
     * no chance of I/O errors.  Failure here implies a malformed
     * UI definition.  Full stop. */
    gtk_ui_manager_add_ui_from_string (ui_manager, ui, -1, &error);
    if (error != NULL)
        g_error ("%s", error->message);
}

static void
e_web_inspector_class_init (EWebInspectorClass *class)
{
    GObjectClass *object_class;
    EExtensionClass *extension_class;

    object_class = G_OBJECT_CLASS (class);
    object_class->constructed = web_inspector_constructed;

    extension_class = E_EXTENSION_CLASS (class);
    extension_class->extensible_type = E_TYPE_WEB_VIEW;
}

static void
e_web_inspector_class_finalize (EWebInspectorClass *class)
{
}

static void
e_web_inspector_init (EWebInspector *extension)
{
}

G_MODULE_EXPORT void
e_module_load (GTypeModule *type_module)
{
    e_web_inspector_register_type (type_module);
}

G_MODULE_EXPORT void
e_module_unload (GTypeModule *type_module)
{
}