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/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
/* vim: set sw=2 ts=2 sts=2 et: */
/*
 *  Copyright © 2011, 2012 Igalia S.L.
 *
 *  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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

#include "config.h"

#include "ephy-hosts-view.h"

#include "ephy-gui.h"
#include "ephy-hosts-store.h"

#include <gtk/gtk.h>
#include <glib/gi18n.h>

G_DEFINE_TYPE (EphyHostsView, ephy_hosts_view, GTK_TYPE_TREE_VIEW)
static void
ephy_hosts_view_class_init (EphyHostsViewClass *klass)
{
}

static gboolean
button_event_modifies_selection (GdkEventButton *event)
{
    return (event->state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK)) != 0;
}

static gboolean
ephy_hosts_view_button_press_cb (GtkWidget *treeview,
                   GdkEventButton *event,
                   EphyHostsView *view)
{
  GtkTreeSelection *selection;
  GtkTreePath *path = NULL;
  gboolean path_is_selected, call_parent = TRUE;

  if (event->window != gtk_tree_view_get_bin_window (GTK_TREE_VIEW (treeview)))
    return GTK_WIDGET_CLASS (ephy_hosts_view_parent_class)->button_press_event (treeview, event);

  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
  if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (treeview),
                                     event->x,
                                     event->y,
                                     &path,
                                     NULL, NULL, NULL)) {
    path_is_selected = gtk_tree_selection_path_is_selected (selection, path);

    if (!gtk_widget_is_focus (GTK_WIDGET (treeview)))
      gtk_widget_grab_focus (GTK_WIDGET (treeview));

    if (event->button == 3 && path_is_selected)
      call_parent = FALSE;

    if (!button_event_modifies_selection (event) &&
        event->button == 1 && path_is_selected &&
        gtk_tree_selection_count_selected_rows (selection) > 1)
      call_parent = FALSE;

    if (call_parent)
      GTK_WIDGET_CLASS (ephy_hosts_view_parent_class)->button_press_event (treeview, event);

    if (event->button == 3) {
        gboolean retval;

        g_signal_emit_by_name (view, "popup_menu", &retval);
    }
    gtk_tree_path_free (path);
  } else
    gtk_tree_selection_unselect_all (selection);

  return TRUE;
}

static void
ephy_hosts_view_init (EphyHostsView *self)
{
  GtkTreeViewColumn *column;
  GtkTreeSelection *selection;

  column = gtk_tree_view_column_new_with_attributes (_("Sites"),
                                                     gtk_cell_renderer_text_new (),
                                                     "text", EPHY_HOSTS_STORE_COLUMN_TITLE,
                                                     NULL);
  gtk_tree_view_append_column (GTK_TREE_VIEW (self), column);

  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
  gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);

  g_signal_connect_object (self, "button_press_event",
               G_CALLBACK (ephy_hosts_view_button_press_cb),
               self, 0);
}

GtkWidget *
ephy_hosts_view_new (void)
{
  return g_object_new (EPHY_TYPE_HOSTS_VIEW, NULL);
}

void
ephy_hosts_view_popup (EphyHostsView *view, GtkWidget *menu)
{
    GdkEvent *event;

    event = gtk_get_current_event ();
    if (event)
    {
        if (event->type == GDK_KEY_PRESS)   {
            GdkEventKey *key = (GdkEventKey *) event;

            gtk_menu_popup (GTK_MENU (menu), NULL, NULL,
                    ephy_gui_menu_position_tree_selection,
                    view, 0, key->time);
            gtk_menu_shell_select_first (GTK_MENU_SHELL (menu), FALSE);
        } else if (event->type == GDK_BUTTON_PRESS) {
            GdkEventButton *button = (GdkEventButton *) event;

            gtk_menu_popup (GTK_MENU (menu), NULL, NULL, NULL,
                    NULL, button->button, button->time);
        }
        gdk_event_free (event);
    }
}

static void
get_selection (GtkTreeModel *model,
               GtkTreePath *path,
               GtkTreeIter *iter,
               gpointer *data)
{
  EphyHistoryHost *host;

  host = ephy_hosts_store_get_host_from_path (EPHY_HOSTS_STORE (model), path);
  *data = g_list_prepend (*data, host);
}

GList *
ephy_hosts_view_get_selection (EphyHostsView *view)
{
  GtkTreeSelection *selection;
  GList *list = NULL;

  selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (view));
  gtk_tree_selection_selected_foreach (selection,
                                       (GtkTreeSelectionForeachFunc) get_selection,
                                       &list);

  return g_list_reverse (list);
}