/*
 * xed-file-browser-plugin.c - Xed plugin providing easy file access
 * from the sidepanel
 *
 * Copyright (C) 2006 - Jesse van den Kieboom <jesse@icecrew.nl>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
 */


#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>
#include <glib/gi18n-lib.h>
#include <gmodule.h>
#include <xed/xed-app.h>
#include <xed/xed-commands.h>
#include <xed/xed-debug.h>
#include <gio/gio.h>
#include <xed/xed-window.h>
#include <xed/xed-window-activatable.h>
#include <xed/xed-utils.h>

#include "xed-file-browser-enum-types.h"
#include "xed-file-browser-plugin.h"
#include "xed-file-browser-utils.h"
#include "xed-file-browser-error.h"
#include "xed-file-browser-widget.h"
#include "xed-file-browser-messages.h"

#define FILE_BROWSER_SCHEMA         "org.x.editor.plugins.filebrowser"
#define FILE_BROWSER_ONLOAD_SCHEMA  "org.x.editor.plugins.filebrowser.on-load"

#define XED_FILE_BROWSER_PLUGIN_GET_PRIVATE(object) (G_TYPE_INSTANCE_GET_PRIVATE ((object), XED_TYPE_FILE_BROWSER_PLUGIN, XedFileBrowserPluginPrivate))

struct _XedFileBrowserPluginPrivate
{
    XedWindow *window;

    XedFileBrowserWidget *tree_widget;
    gulong merge_id;
    GtkActionGroup *action_group;
    GtkActionGroup *single_selection_action_group;
    gboolean auto_root;
    gulong end_loading_handle;

    GSettings *settings;
    GSettings *onload_settings;
};

enum
{
    PROP_0,
    PROP_WINDOW
};

static void on_location_activated_cb (XedFileBrowserWidget *widget,
                                      GFile                *location,
                                      XedWindow            *window);
static void on_error_cb (XedFileBrowserWidget *widget,
                         guint                 code,
                         gchar const          *message,
                         XedFileBrowserPlugin *plugin);
static void on_model_set_cb (XedFileBrowserView   *widget,
                             GParamSpec           *arg1,
                             XedFileBrowserPlugin *plugin);
static void on_virtual_root_changed_cb (XedFileBrowserStore  *model,
                                        GParamSpec           *param,
                                        XedFileBrowserPlugin *plugin);
static void on_filter_mode_changed_cb (XedFileBrowserStore  *model,
                                       GParamSpec           *param,
                                       XedFileBrowserPlugin *plugin);
static void on_rename_cb (XedFileBrowserStore *model,
                          GFile               *oldfile,
                          GFile               *newfile,
                          XedWindow           *window);
static void on_filter_pattern_changed_cb (XedFileBrowserWidget *widget,
                                          GParamSpec           *param,
                                          XedFileBrowserPlugin *plugin);
static void on_tab_added_cb (XedWindow            *window,
                             XedTab               *tab,
                             XedFileBrowserPlugin *plugin);
static gboolean on_confirm_delete_cb (XedFileBrowserWidget *widget,
                                      XedFileBrowserStore  *store,
                                      GList                *rows,
                                      XedFileBrowserPlugin *plugin);
static gboolean on_confirm_no_trash_cb (XedFileBrowserWidget *widget,
                                        GList                *files,
                                        XedWindow            *window);

static void xed_window_activatable_iface_init (XedWindowActivatableInterface *iface);

G_DEFINE_DYNAMIC_TYPE_EXTENDED (XedFileBrowserPlugin,
                                xed_file_browser_plugin,
                                PEAS_TYPE_EXTENSION_BASE,
                                0,
                                G_IMPLEMENT_INTERFACE_DYNAMIC (XED_TYPE_WINDOW_ACTIVATABLE,
                                                               xed_window_activatable_iface_init)    \
                                                                                               \
                                xed_file_browser_enum_and_flag_register_type (type_module);  \
                                _xed_file_browser_store_register_type        (type_module);  \
                                _xed_file_bookmarks_store_register_type      (type_module);  \
                                _xed_file_browser_view_register_type         (type_module);  \
                                _xed_file_browser_widget_register_type       (type_module);
)


static void
xed_file_browser_plugin_init (XedFileBrowserPlugin *plugin)
{
    plugin->priv = XED_FILE_BROWSER_PLUGIN_GET_PRIVATE (plugin);
}

static void
xed_file_browser_plugin_dispose (GObject *object)
{
    XedFileBrowserPlugin *plugin = XED_FILE_BROWSER_PLUGIN (object);

    g_clear_object (&plugin->priv->window);

    G_OBJECT_CLASS (xed_file_browser_plugin_parent_class)->dispose (object);
}

static void
xed_file_browser_plugin_set_property (GObject      *object,
                                      guint         prop_id,
                                      const GValue *value,
                                      GParamSpec   *pspec)
{
    XedFileBrowserPlugin *plugin = XED_FILE_BROWSER_PLUGIN (object);

    switch (prop_id)
    {
        case PROP_WINDOW:
            plugin->priv->window = XED_WINDOW (g_value_dup_object (value));
            break;
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
            break;
    }
}

static void
xed_file_browser_plugin_get_property (GObject    *object,
                                      guint       prop_id,
                                      GValue     *value,
                                      GParamSpec *pspec)
{
    XedFileBrowserPlugin *plugin = XED_FILE_BROWSER_PLUGIN (object);

    switch (prop_id)
    {
        case PROP_WINDOW:
            g_value_set_object (value, plugin->priv->window);
            break;
        default:
            G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
            break;
    }
}

static void
on_end_loading_cb (XedFileBrowserStore  *store,
                   GtkTreeIter          *iter,
                   XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;

    /* Disconnect the signal */
    g_signal_handler_disconnect (store, priv->end_loading_handle);
    priv->end_loading_handle = 0;
    priv->auto_root = FALSE;
}

static void
prepare_auto_root (XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    XedFileBrowserStore *store;

    priv->auto_root = TRUE;

    store = xed_file_browser_widget_get_browser_store (priv->tree_widget);

    if (priv->end_loading_handle != 0)
    {
        g_signal_handler_disconnect (store, priv->end_loading_handle);
        priv->end_loading_handle = 0;
    }

    priv->end_loading_handle = g_signal_connect (store, "end-loading",
                                                 G_CALLBACK (on_end_loading_cb), plugin);
}

static void
restore_default_location (XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    gchar *root;
    gchar *virtual_root;
    gboolean bookmarks;
    gboolean remote;

    bookmarks = !g_settings_get_boolean (priv->onload_settings, "tree-view");

    if (bookmarks)
    {
        xed_file_browser_widget_show_bookmarks (priv->tree_widget);
        return;
    }

    root = g_settings_get_string (priv->onload_settings, "root");
    virtual_root = g_settings_get_string (priv->onload_settings, "virtual-root");

    remote = g_settings_get_boolean (priv->onload_settings, "enable-remote");

    if (root != NULL && *root != '\0') {
        GFile *rootfile;
        GFile *vrootfile;

        rootfile = g_file_new_for_uri (root);
        vrootfile = g_file_new_for_uri (virtual_root);

        if (remote || g_file_is_native (rootfile))
        {
            if (virtual_root != NULL && *virtual_root != '\0')
            {
                prepare_auto_root (plugin);
                xed_file_browser_widget_set_root_and_virtual_root (priv->tree_widget, rootfile, vrootfile);
            }
            else
            {
                prepare_auto_root (plugin);
                xed_file_browser_widget_set_root (priv->tree_widget, rootfile, TRUE);
            }
        }

        g_object_unref (rootfile);
        g_object_unref (vrootfile);
    }

    g_free (root);
    g_free (virtual_root);
}

static void
restore_filter (XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    gchar *filter_mode;
    XedFileBrowserStoreFilterMode mode;
    gchar *pattern;

    /* Get filter_mode */
    filter_mode = g_settings_get_string (priv->settings, "filter-mode");

    /* Filter mode */
    mode = xed_file_browser_store_filter_mode_get_default ();

    if (filter_mode != NULL) {
        if (strcmp (filter_mode, "hidden") == 0) {
            mode = XED_FILE_BROWSER_STORE_FILTER_MODE_HIDE_HIDDEN;
        } else if (strcmp (filter_mode, "binary") == 0) {
            mode = XED_FILE_BROWSER_STORE_FILTER_MODE_HIDE_BINARY;
        } else if (strcmp (filter_mode, "hidden_and_binary") == 0 ||
                 strcmp (filter_mode, "binary_and_hidden") == 0) {
            mode = XED_FILE_BROWSER_STORE_FILTER_MODE_HIDE_HIDDEN |
                   XED_FILE_BROWSER_STORE_FILTER_MODE_HIDE_BINARY;
        } else if (strcmp (filter_mode, "none") == 0 ||
                   *filter_mode == '\0') {
            mode = XED_FILE_BROWSER_STORE_FILTER_MODE_NONE;
        }
    }

    /* Set the filter mode */
    xed_file_browser_store_set_filter_mode (xed_file_browser_widget_get_browser_store (priv->tree_widget), mode);

    pattern = g_settings_get_string (priv->settings, "filter-pattern");

    xed_file_browser_widget_set_filter_pattern (priv->tree_widget, pattern);

    g_free (filter_mode);
    g_free (pattern);
}

static void
set_root_from_doc (XedFileBrowserPlugin *plugin,
                   XedDocument          *doc)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    GtkSourceFile *file;
    GFile *location;
    GFile *parent;

    if (doc == NULL)
    {
        return;
    }

    file = xed_document_get_file (doc);
    location = gtk_source_file_get_location (file);
    if (location == NULL)
    {
        return;
    }

    parent = g_file_get_parent (location);

    if (parent != NULL)
    {
        xed_file_browser_widget_set_root (priv->tree_widget,
                                    parent,
                                    TRUE);

        g_object_unref (parent);
    }
}

static void
on_action_set_active_root (GtkAction            *action,
                           XedFileBrowserPlugin *plugin)
{
    set_root_from_doc (plugin, xed_window_get_active_document (XED_WINDOW (plugin->priv->window)));
}

static gchar *
get_terminal (XedFileBrowserPlugin *plugin)
{
    // TODO : Identify the DE, find the preferred terminal application (xterminal shouldn't be hardcoded here, it should be set as default in the DE prefs)
    return g_strdup ("xterminal");
}

static void
on_action_open_terminal (GtkAction            *action,
                         XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    gchar *terminal;
    gchar *local;
    gchar *argv[2];
    GFile *file;

    GtkTreeIter iter;
    XedFileBrowserStore *store;

    /* Get the current directory */
    if (!xed_file_browser_widget_get_selected_directory (priv->tree_widget, &iter))
    {
        return;
    }

    store = xed_file_browser_widget_get_browser_store (priv->tree_widget);
    gtk_tree_model_get (GTK_TREE_MODEL (store), &iter, XED_FILE_BROWSER_STORE_COLUMN_LOCATION, &file, -1);

    if (file == NULL)
    {
        return;
    }

    terminal = get_terminal (plugin);

    local = g_file_get_path (file);

    argv[0] = terminal;
    argv[1] = NULL;

    g_spawn_async (local,
                   argv,
                   NULL,
                   G_SPAWN_SEARCH_PATH,
                   NULL,
                   NULL,
                   NULL,
                   NULL);

    g_free (terminal);
    g_free (local);
}

static void
on_selection_changed_cb (GtkTreeSelection     *selection,
                         XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    GtkTreeView *tree_view;
    GtkTreeModel *model;
    GtkTreeIter iter;
    gboolean sensitive;
    GFile *location;

    tree_view = GTK_TREE_VIEW (xed_file_browser_widget_get_browser_view (priv->tree_widget));
    model = gtk_tree_view_get_model (tree_view);

    if (!XED_IS_FILE_BROWSER_STORE (model))
    {
        return;
    }

    sensitive = xed_file_browser_widget_get_selected_directory (priv->tree_widget, &iter);

    if (sensitive)
    {
        gtk_tree_model_get (model, &iter, XED_FILE_BROWSER_STORE_COLUMN_LOCATION, &location, -1);

        sensitive = g_file_has_uri_scheme (location, "file");
    }

    gtk_action_set_sensitive (gtk_action_group_get_action (priv->single_selection_action_group, "OpenTerminal"), sensitive);
}

#define POPUP_UI ""                             \
"<ui>"                                          \
"  <popup name=\"FilePopup\">"                  \
"    <placeholder name=\"FilePopup_Opt1\">"     \
"      <menuitem action=\"SetActiveRoot\"/>"    \
"    </placeholder>"                            \
"    <placeholder name=\"FilePopup_Opt4\">"     \
"      <menuitem action=\"OpenTerminal\"/>"     \
"    </placeholder>"                            \
"  </popup>"                                    \
"  <popup name=\"BookmarkPopup\">"              \
"    <placeholder name=\"BookmarkPopup_Opt1\">" \
"      <menuitem action=\"SetActiveRoot\"/>"    \
"    </placeholder>"                            \
"  </popup>"                                    \
"</ui>"

static GtkActionEntry extra_actions[] =
{
    {"SetActiveRoot", "go-jump-symbolic", N_("_Set root to active document"),
     NULL,
     N_("Set the root to the active document location"),
     G_CALLBACK (on_action_set_active_root)}
};

static GtkActionEntry extra_single_selection_actions[] = {
    {"OpenTerminal", "utilities-terminal", N_("_Open terminal here"),
     NULL,
     N_("Open a terminal at the currently opened directory"),
     G_CALLBACK (on_action_open_terminal)}
};

static void
add_popup_ui (XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    GtkUIManager * manager;
    GtkActionGroup * action_group;
    GError * error = NULL;

    manager = xed_file_browser_widget_get_ui_manager (priv->tree_widget);

    action_group = gtk_action_group_new ("FileBrowserPluginExtra");
    gtk_action_group_set_translation_domain (action_group, NULL);
    gtk_action_group_add_actions (action_group,
                                  extra_actions,
                                  G_N_ELEMENTS (extra_actions),
                                  plugin);
    gtk_ui_manager_insert_action_group (manager, action_group, 0);
    priv->action_group = action_group;

    action_group = gtk_action_group_new ("FileBrowserPluginSingleSelectionExtra");
    gtk_action_group_set_translation_domain (action_group, NULL);
    gtk_action_group_add_actions (action_group,
                                  extra_single_selection_actions,
                                  G_N_ELEMENTS (extra_single_selection_actions),
                                  priv->window);
    gtk_ui_manager_insert_action_group (manager, action_group, 0);
    priv->single_selection_action_group = action_group;

    priv->merge_id = gtk_ui_manager_add_ui_from_string (manager,
                                                        POPUP_UI,
                                                        -1,
                                                        &error);

    if (priv->merge_id == 0)
    {
        g_warning("Unable to merge UI: %s", error->message);
        g_error_free(error);
    }
}

static void
remove_popup_ui (XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    GtkUIManager * manager;

    manager = xed_file_browser_widget_get_ui_manager (priv->tree_widget);
    gtk_ui_manager_remove_ui (manager, priv->merge_id);

    gtk_ui_manager_remove_action_group (manager, priv->action_group);
    g_object_unref (priv->action_group);

    gtk_ui_manager_remove_action_group (manager, priv->single_selection_action_group);
    g_object_unref (priv->single_selection_action_group);
}

static void
xed_file_browser_plugin_update_state (XedWindowActivatable *activatable)
{
    XedFileBrowserPluginPrivate *priv = XED_FILE_BROWSER_PLUGIN (activatable)->priv;
    XedDocument * doc;

    doc = xed_window_get_active_document (XED_WINDOW (priv->window));

    gtk_action_set_sensitive (gtk_action_group_get_action (priv->action_group,
                                                           "SetActiveRoot"),
                                                           doc != NULL &&  !xed_document_is_untitled (doc));
}

static void
xed_file_browser_plugin_activate (XedWindowActivatable *activatable)
{
    XedFileBrowserPlugin *plugin = XED_FILE_BROWSER_PLUGIN (activatable);
    XedFileBrowserPluginPrivate *priv;
    XedPanel *panel;
    XedFileBrowserStore *store;
    gchar *data_dir;
    GSettingsSchemaSource *schema_source;
    GSettingsSchema *schema;

    priv = plugin->priv;

    data_dir = peas_extension_base_get_data_dir (PEAS_EXTENSION_BASE (activatable));
    priv->tree_widget = XED_FILE_BROWSER_WIDGET (xed_file_browser_widget_new (data_dir));
    g_free (data_dir);

    priv->settings = g_settings_new (FILE_BROWSER_SCHEMA);
    priv->onload_settings = g_settings_new (FILE_BROWSER_ONLOAD_SCHEMA);

    g_signal_connect (priv->tree_widget, "location-activated",
                      G_CALLBACK (on_location_activated_cb), priv->window);

    g_signal_connect (priv->tree_widget, "error",
                      G_CALLBACK (on_error_cb), plugin);

    g_signal_connect (priv->tree_widget, "notify::filter-pattern",
                      G_CALLBACK (on_filter_pattern_changed_cb), plugin);

    g_signal_connect (priv->tree_widget, "confirm-delete",
                      G_CALLBACK (on_confirm_delete_cb), plugin);

    g_signal_connect (priv->tree_widget, "confirm-no-trash",
                      G_CALLBACK (on_confirm_no_trash_cb), priv->window);

    g_signal_connect (gtk_tree_view_get_selection (GTK_TREE_VIEW (xed_file_browser_widget_get_browser_view (priv->tree_widget))),
                      "changed", G_CALLBACK (on_selection_changed_cb), plugin);

    panel = xed_window_get_side_panel (priv->window);
    xed_panel_add_item (panel, GTK_WIDGET (priv->tree_widget), _("File Browser"), "system-file-manager");
    gtk_widget_show (GTK_WIDGET (priv->tree_widget));

    add_popup_ui (plugin);

    /* Restore filter options */
    restore_filter (plugin);

    /* Connect signals to store the last visited location */
    g_signal_connect (xed_file_browser_widget_get_browser_view (priv->tree_widget), "notify::model",
                      G_CALLBACK (on_model_set_cb), plugin);

    store = xed_file_browser_widget_get_browser_store (priv->tree_widget);
    g_signal_connect (store, "notify::virtual-root",
                      G_CALLBACK (on_virtual_root_changed_cb), plugin);

    g_signal_connect (store, "notify::filter-mode",
                      G_CALLBACK (on_filter_mode_changed_cb), plugin);

    g_signal_connect (store, "rename",
                      G_CALLBACK (on_rename_cb), priv->window);

    g_signal_connect (priv->window, "tab-added",
                      G_CALLBACK (on_tab_added_cb), plugin);

    /* Register messages on the bus */
    xed_file_browser_messages_register (priv->window, priv->tree_widget);

    xed_file_browser_plugin_update_state (activatable);
}

static void
xed_file_browser_plugin_deactivate (XedWindowActivatable *activatable)
{
    XedFileBrowserPlugin *plugin = XED_FILE_BROWSER_PLUGIN (activatable);
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    XedPanel * panel;

    /* Unregister messages from the bus */
    xed_file_browser_messages_unregister (priv->window);

    /* Disconnect signals */
    g_signal_handlers_disconnect_by_func (priv->window, G_CALLBACK (on_tab_added_cb), plugin);

    g_object_unref (priv->settings);
    g_object_unref (priv->onload_settings);

    remove_popup_ui (plugin);

    panel = xed_window_get_side_panel (priv->window);
    xed_panel_remove_item (panel, GTK_WIDGET (priv->tree_widget));
}

static void
xed_file_browser_plugin_class_init (XedFileBrowserPluginClass * klass)
{
    GObjectClass  *object_class = G_OBJECT_CLASS (klass);

    object_class->dispose = xed_file_browser_plugin_dispose;
    object_class->set_property = xed_file_browser_plugin_set_property;
    object_class->get_property = xed_file_browser_plugin_get_property;

    g_object_class_override_property (object_class, PROP_WINDOW, "window");

    g_type_class_add_private (object_class, sizeof (XedFileBrowserPluginPrivate));
}

static void
xed_window_activatable_iface_init (XedWindowActivatableInterface *iface)
{
    iface->activate = xed_file_browser_plugin_activate;
    iface->deactivate = xed_file_browser_plugin_deactivate;
    iface->update_state = xed_file_browser_plugin_update_state;
}

static void
xed_file_browser_plugin_class_finalize (XedFileBrowserPluginClass *klass)
{
    /* dummy function - used by G_DEFINE_DYNAMIC_TYPE_EXTENDED */
}

/* Callbacks */
static void
on_location_activated_cb (XedFileBrowserWidget *tree_widget,
                          GFile                *location,
                          XedWindow            *window)
{
    xed_commands_load_location (window, location, NULL, 0);
}

static void
on_error_cb (XedFileBrowserWidget *tree_widget,
             guint                 code,
             gchar const          *message,
             XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    gchar * title;
    GtkWidget * dlg;

    /* Do not show the error when the root has been set automatically */
    if (priv->auto_root && (code == XED_FILE_BROWSER_ERROR_SET_ROOT ||
                            code == XED_FILE_BROWSER_ERROR_LOAD_DIRECTORY))
    {
        /* Show bookmarks */
        xed_file_browser_widget_show_bookmarks (priv->tree_widget);
        return;
    }

    switch (code) {
        case XED_FILE_BROWSER_ERROR_NEW_DIRECTORY:
            title = _("An error occurred while creating a new directory");
            break;
        case XED_FILE_BROWSER_ERROR_NEW_FILE:
            title = _("An error occurred while creating a new file");
            break;
        case XED_FILE_BROWSER_ERROR_RENAME:
            title = _("An error occurred while renaming a file or directory");
            break;
        case XED_FILE_BROWSER_ERROR_DELETE:
            title = _("An error occurred while deleting a file or directory");
            break;
        case XED_FILE_BROWSER_ERROR_OPEN_DIRECTORY:
            title = _("An error occurred while opening a directory in the file manager");
            break;
        case XED_FILE_BROWSER_ERROR_SET_ROOT:
            title = _("An error occurred while setting a root directory");
            break;
        case XED_FILE_BROWSER_ERROR_LOAD_DIRECTORY:
            title = _("An error occurred while loading a directory");
            break;
        default:
            title = _("An error occurred");
            break;
    }

    dlg = gtk_message_dialog_new (GTK_WINDOW (priv->window),
                                  GTK_DIALOG_MODAL |
                                  GTK_DIALOG_DESTROY_WITH_PARENT,
                                  GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
                                  "%s", title);
    gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dlg), "%s", message);

    gtk_dialog_run (GTK_DIALOG (dlg));
    gtk_widget_destroy (dlg);
}

static void
on_model_set_cb (XedFileBrowserView   *widget,
                 GParamSpec           *arg1,
                 XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    GtkTreeModel * model;

    model = gtk_tree_view_get_model (GTK_TREE_VIEW (xed_file_browser_widget_get_browser_view (priv->tree_widget)));

    if (model == NULL)
    {
        return;
    }

    g_settings_set_boolean (priv->onload_settings, "tree-view", XED_IS_FILE_BROWSER_STORE (model));
}

static void
on_filter_mode_changed_cb (XedFileBrowserStore  *model,
                           GParamSpec           *param,
                           XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    XedFileBrowserStoreFilterMode mode;

    mode = xed_file_browser_store_get_filter_mode (model);

    if ((mode & XED_FILE_BROWSER_STORE_FILTER_MODE_HIDE_HIDDEN) &&
        (mode & XED_FILE_BROWSER_STORE_FILTER_MODE_HIDE_BINARY))
    {
        g_settings_set_string (priv->settings, "filter-mode", "hidden_and_binary");
    }
    else if (mode & XED_FILE_BROWSER_STORE_FILTER_MODE_HIDE_HIDDEN)
    {
        g_settings_set_string (priv->settings, "filter-mode", "hidden");
    }
    else if (mode & XED_FILE_BROWSER_STORE_FILTER_MODE_HIDE_BINARY)
    {
        g_settings_set_string (priv->settings, "filter-mode", "binary");
    }else
    {
        g_settings_set_string (priv->settings, "filter-mode", "none");
    }
}

static void
on_rename_cb (XedFileBrowserStore *store,
              GFile               *oldfile,
              GFile               *newfile,
              XedWindow           *window)
{
    GList *documents;
    GList *item;

    /* Find all documents and set its uri to newuri where it matches olduri */
    documents = xed_app_get_documents (XED_APP (g_application_get_default ()));

    for (item = documents; item; item = item->next)
    {
        XedDocument *doc;
        GtkSourceFile *source_file;
        GFile *docfile;

        doc = XED_DOCUMENT (item->data);
        source_file = xed_document_get_file (doc);
        docfile = gtk_source_file_get_location (source_file);

        if (docfile == NULL)
        {
            continue;
        }

        if (g_file_equal (docfile, oldfile))
        {
            gtk_source_file_set_location (source_file, newfile);
        }
        else
        {
            gchar *relative;

            relative = g_file_get_relative_path (oldfile, docfile);

            if (relative != NULL)
            {
                /* relative now contains the part in docfile without
                   the prefix oldfile */

                docfile = g_file_get_child (newfile, relative);

                gtk_source_file_set_location (source_file, docfile);

                g_object_unref (docfile);
            }

            g_free (relative);
        }
    }

    g_list_free (documents);
}

static void
on_filter_pattern_changed_cb (XedFileBrowserWidget *widget,
                              GParamSpec           *param,
                              XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    gchar * pattern;

    g_object_get (G_OBJECT (widget), "filter-pattern", &pattern, NULL);

    if (pattern == NULL)
    {
        g_settings_set_string (priv->settings, "filter-pattern", "");
    }
    else
    {
        g_settings_set_string (priv->settings, "filter-pattern", pattern);
    }

    g_free (pattern);
}

static void
on_virtual_root_changed_cb (XedFileBrowserStore  *store,
                            GParamSpec           *param,
                            XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    GFile *root;
    GFile *virtual_root;
    gchar *uri_root = NULL;

    root = xed_file_browser_store_get_root (store);

    if (!root)
    {
        return;
    }
    else
    {
        uri_root = g_file_get_uri (root);
        g_object_unref (root);
    }

    g_settings_set_string (priv->onload_settings, "root", uri_root);
    g_free (uri_root);

    virtual_root = xed_file_browser_store_get_virtual_root (store);

    if (!virtual_root)
    {
        /* Set virtual to same as root then */
        g_settings_set_string (priv->onload_settings, "virtual-root", uri_root);
    }
    else
    {
        gchar *uri_vroot;

        uri_vroot = g_file_get_uri (virtual_root);

        g_settings_set_string (priv->onload_settings, "virtual-root", uri_vroot);

        g_free (uri_vroot);
        g_object_unref (virtual_root);
    }

    g_signal_handlers_disconnect_by_func (XED_WINDOW (priv->window), G_CALLBACK (on_tab_added_cb), plugin);
}

static void
on_tab_added_cb (XedWindow            *window,
                 XedTab               *tab,
                 XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    gboolean open;
    gboolean load_default = TRUE;

    open = g_settings_get_boolean (priv->settings, "open-at-first-doc");

    if (open)
    {
        XedDocument *doc;
        GtkSourceFile *file;
        GFile *location;

        doc = xed_tab_get_document (tab);
        file = xed_document_get_file (doc);
        location = gtk_source_file_get_location (file);

        if (location != NULL)
        {
            if (g_file_has_uri_scheme (location, "file"))
            {
                prepare_auto_root (plugin);
                set_root_from_doc (plugin, doc);
                load_default = FALSE;
            }
        }
    }

    if (load_default)
    {
        restore_default_location (plugin);
    }

    /* Disconnect this signal, it's only called once */
    g_signal_handlers_disconnect_by_func (window, G_CALLBACK (on_tab_added_cb), plugin);
}

static gchar *
get_filename_from_path (GtkTreeModel *model,
                        GtkTreePath  *path)
{
    GtkTreeIter iter;
    GFile *location;

    gtk_tree_model_get_iter (model, &iter, path);
    gtk_tree_model_get (model, &iter, XED_FILE_BROWSER_STORE_COLUMN_LOCATION, &location, -1);

    return xed_file_browser_utils_file_basename (location);
}

static gboolean
on_confirm_no_trash_cb (XedFileBrowserWidget *widget,
                        GList                *files,
                        XedWindow            *window)
{
    gchar *normal;
    gchar *message;
    gchar *secondary;
    gboolean result;

    message = _("Cannot move file to trash, do you\nwant to delete permanently?");

    if (files->next == NULL)
    {
        normal = xed_file_browser_utils_file_basename (G_FILE (files->data));
        secondary = g_strdup_printf (_("The file \"%s\" cannot be moved to the trash."), normal);
        g_free (normal);
    }
    else
    {
        secondary = g_strdup (_("The selected files cannot be moved to the trash."));
    }

    result = xed_file_browser_utils_confirmation_dialog (window,
                                                         GTK_MESSAGE_QUESTION,
                                                         message,
                                                         secondary,
                                                         GTK_STOCK_DELETE,
                                                         NULL);
    g_free (secondary);

    return result;
}

static gboolean
on_confirm_delete_cb (XedFileBrowserWidget *widget,
                      XedFileBrowserStore  *store,
                      GList                *paths,
                      XedFileBrowserPlugin *plugin)
{
    XedFileBrowserPluginPrivate *priv = plugin->priv;
    gchar *normal;
    gchar *message;
    gchar *secondary;
    gboolean result;

    if (paths->next == NULL)
    {
        normal = get_filename_from_path (GTK_TREE_MODEL (store), (GtkTreePath *)(paths->data));
        message = g_strdup_printf (_("Are you sure you want to permanently delete \"%s\"?"), normal);
        g_free (normal);
    }
    else
    {
        message = g_strdup (_("Are you sure you want to permanently delete the selected files?"));
    }

    secondary = _("If you delete an item, it is permanently lost.");

    result = xed_file_browser_utils_confirmation_dialog (XED_WINDOW (priv->window),
                                                         GTK_MESSAGE_QUESTION,
                                                         message,
                                                         secondary,
                                                         GTK_STOCK_DELETE,
                                                         NULL);

    g_free (message);

    return result;
}

G_MODULE_EXPORT void
peas_register_types (PeasObjectModule *module)
{
    xed_file_browser_plugin_register_type (G_TYPE_MODULE (module));

    peas_object_module_register_extension_type (module,
                                                XED_TYPE_WINDOW_ACTIVATABLE,
                                                XED_TYPE_FILE_BROWSER_PLUGIN);
}

// ex:ts=8:noet:
