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/*
 * e-attachment-icon-view.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/>
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

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

#include "e-attachment-icon-view.h"

#include <glib/gi18n.h>
#include <libebackend/e-extensible.h>

#include "e-attachment.h"
#include "e-attachment-store.h"
#include "e-attachment-view.h"

struct _EAttachmentIconViewPrivate {
    EAttachmentViewPrivate view_priv;
};

enum {
    PROP_0,
    PROP_DRAGGING,
    PROP_EDITABLE
};

static gint icon_size = GTK_ICON_SIZE_DIALOG;

/* Forward Declarations */
static void e_attachment_icon_view_interface_init
                    (EAttachmentViewInterface *interface);

G_DEFINE_TYPE_WITH_CODE (
    EAttachmentIconView,
    e_attachment_icon_view,
    GTK_TYPE_ICON_VIEW,
    G_IMPLEMENT_INTERFACE (
        E_TYPE_ATTACHMENT_VIEW,
        e_attachment_icon_view_interface_init)
    G_IMPLEMENT_INTERFACE (
        E_TYPE_EXTENSIBLE, NULL))

void
e_attachment_icon_view_set_default_icon_size (gint size)
{
    icon_size = size;
}

static void
attachment_icon_view_set_property (GObject *object,
                                   guint property_id,
                                   const GValue *value,
                                   GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_DRAGGING:
            e_attachment_view_set_dragging (
                E_ATTACHMENT_VIEW (object),
                g_value_get_boolean (value));
            return;

        case PROP_EDITABLE:
            e_attachment_view_set_editable (
                E_ATTACHMENT_VIEW (object),
                g_value_get_boolean (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
attachment_icon_view_get_property (GObject *object,
                                   guint property_id,
                                   GValue *value,
                                   GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_DRAGGING:
            g_value_set_boolean (
                value, e_attachment_view_get_dragging (
                E_ATTACHMENT_VIEW (object)));
            return;

        case PROP_EDITABLE:
            g_value_set_boolean (
                value, e_attachment_view_get_editable (
                E_ATTACHMENT_VIEW (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
attachment_icon_view_dispose (GObject *object)
{
    e_attachment_view_dispose (E_ATTACHMENT_VIEW (object));

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (e_attachment_icon_view_parent_class)->dispose (object);
}

static void
attachment_icon_view_finalize (GObject *object)
{
    e_attachment_view_finalize (E_ATTACHMENT_VIEW (object));

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (e_attachment_icon_view_parent_class)->finalize (object);
}

static void
attachment_icon_view_constructed (GObject *object)
{
    GtkCellLayout *cell_layout;
    GtkCellRenderer *renderer;

    cell_layout = GTK_CELL_LAYOUT (object);

    /* This needs to happen after constructor properties are set
     * so that GtkCellLayout.get_area() returns something valid. */

    renderer = gtk_cell_renderer_pixbuf_new ();
    g_object_set (renderer, "stock-size", icon_size, NULL);
    gtk_cell_layout_pack_start (cell_layout, renderer, FALSE);

    gtk_cell_layout_add_attribute (
        cell_layout, renderer, "gicon",
        E_ATTACHMENT_STORE_COLUMN_ICON);

    renderer = gtk_cell_renderer_text_new ();
    g_object_set (
        renderer, "alignment", PANGO_ALIGN_CENTER,
        "wrap-mode", PANGO_WRAP_WORD, "wrap-width", 150,
        "yalign", 0.0, NULL);
    gtk_cell_layout_pack_start (cell_layout, renderer, FALSE);

    gtk_cell_layout_add_attribute (
        cell_layout, renderer, "text",
        E_ATTACHMENT_STORE_COLUMN_CAPTION);

    renderer = gtk_cell_renderer_progress_new ();
    g_object_set (renderer, "text", _("Loading"), NULL);
    gtk_cell_layout_pack_start (cell_layout, renderer, TRUE);

    gtk_cell_layout_add_attribute (
        cell_layout, renderer, "value",
        E_ATTACHMENT_STORE_COLUMN_PERCENT);

    gtk_cell_layout_add_attribute (
        cell_layout, renderer, "visible",
        E_ATTACHMENT_STORE_COLUMN_LOADING);

    renderer = gtk_cell_renderer_progress_new ();
    g_object_set (renderer, "text", _("Saving"), NULL);
    gtk_cell_layout_pack_start (cell_layout, renderer, TRUE);

    gtk_cell_layout_add_attribute (
        cell_layout, renderer, "value",
        E_ATTACHMENT_STORE_COLUMN_PERCENT);

    gtk_cell_layout_add_attribute (
        cell_layout, renderer, "visible",
        E_ATTACHMENT_STORE_COLUMN_SAVING);

    e_extensible_load_extensions (E_EXTENSIBLE (object));
}

static gboolean
attachment_icon_view_button_press_event (GtkWidget *widget,
                                         GdkEventButton *event)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    if (e_attachment_view_button_press_event (view, event))
        return TRUE;

    /* Chain up to parent's button_press_event() method. */
    return GTK_WIDGET_CLASS (e_attachment_icon_view_parent_class)->
        button_press_event (widget, event);
}

static gboolean
attachment_icon_view_button_release_event (GtkWidget *widget,
                                           GdkEventButton *event)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    if (e_attachment_view_button_release_event (view, event))
        return TRUE;

    /* Chain up to parent's button_release_event() method. */
    return GTK_WIDGET_CLASS (e_attachment_icon_view_parent_class)->
        button_release_event (widget, event);
}

static gboolean
attachment_icon_view_motion_notify_event (GtkWidget *widget,
                                          GdkEventMotion *event)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    if (e_attachment_view_motion_notify_event (view, event))
        return TRUE;

    /* Chain up to parent's motion_notify_event() method. */
    return GTK_WIDGET_CLASS (e_attachment_icon_view_parent_class)->
        motion_notify_event (widget, event);
}

static gboolean
attachment_icon_view_key_press_event (GtkWidget *widget,
                                      GdkEventKey *event)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    if (e_attachment_view_key_press_event (view, event))
        return TRUE;

    /* Chain up to parent's key_press_event() method. */
    return GTK_WIDGET_CLASS (e_attachment_icon_view_parent_class)->
        key_press_event (widget, event);
}

static void
attachment_icon_view_drag_begin (GtkWidget *widget,
                                 GdkDragContext *context)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    /* Chain up to parent's drag_begin() method. */
    GTK_WIDGET_CLASS (e_attachment_icon_view_parent_class)->
        drag_begin (widget, context);

    e_attachment_view_drag_begin (view, context);
}

static void
attachment_icon_view_drag_end (GtkWidget *widget,
                               GdkDragContext *context)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    /* Chain up to parent's drag_end() method. */
    GTK_WIDGET_CLASS (e_attachment_icon_view_parent_class)->
        drag_end (widget, context);

    e_attachment_view_drag_end (view, context);
}

static void
attachment_icon_view_drag_data_get (GtkWidget *widget,
                                    GdkDragContext *context,
                                    GtkSelectionData *selection,
                                    guint info,
                                    guint time)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    e_attachment_view_drag_data_get (
        view, context, selection, info, time);
}

static gboolean
attachment_icon_view_drag_motion (GtkWidget *widget,
                                  GdkDragContext *context,
                                  gint x,
                                  gint y,
                                  guint time)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    return e_attachment_view_drag_motion (view, context, x, y, time);
}

static gboolean
attachment_icon_view_drag_drop (GtkWidget *widget,
                                GdkDragContext *context,
                                gint x,
                                gint y,
                                guint time)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    if (!e_attachment_view_drag_drop (view, context, x, y, time))
        return FALSE;

    /* Chain up to parent's drag_drop() method. */
    return GTK_WIDGET_CLASS (e_attachment_icon_view_parent_class)->
        drag_drop (widget, context, x, y, time);
}

static void
attachment_icon_view_drag_data_received (GtkWidget *widget,
                                         GdkDragContext *context,
                                         gint x,
                                         gint y,
                                         GtkSelectionData *selection,
                                         guint info,
                                         guint time)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    e_attachment_view_drag_data_received (
        view, context, x, y, selection, info, time);
}

static gboolean
attachment_icon_view_popup_menu (GtkWidget *widget)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (widget);

    e_attachment_view_show_popup_menu (view, NULL, NULL, NULL);

    return TRUE;
}

static void
attachment_icon_view_item_activated (GtkIconView *icon_view,
                                     GtkTreePath *path)
{
    EAttachmentView *view = E_ATTACHMENT_VIEW (icon_view);

    e_attachment_view_open_path (view, path, NULL);
}

static EAttachmentViewPrivate *
attachment_icon_view_get_private (EAttachmentView *view)
{
    EAttachmentIconViewPrivate *priv;

    priv = E_ATTACHMENT_ICON_VIEW (view)->priv;

    return &priv->view_priv;
}

static EAttachmentStore *
attachment_icon_view_get_store (EAttachmentView *view)
{
    GtkIconView *icon_view;
    GtkTreeModel *model;

    icon_view = GTK_ICON_VIEW (view);
    model = gtk_icon_view_get_model (icon_view);

    return E_ATTACHMENT_STORE (model);
}

static GtkTreePath *
attachment_icon_view_get_path_at_pos (EAttachmentView *view,
                                      gint x,
                                      gint y)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    return gtk_icon_view_get_path_at_pos (icon_view, x, y);
}

static GList *
attachment_icon_view_get_selected_paths (EAttachmentView *view)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    return gtk_icon_view_get_selected_items (icon_view);
}

static gboolean
attachment_icon_view_path_is_selected (EAttachmentView *view,
                                       GtkTreePath *path)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    return gtk_icon_view_path_is_selected (icon_view, path);
}

static void
attachment_icon_view_select_path (EAttachmentView *view,
                                  GtkTreePath *path)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_select_path (icon_view, path);
}

static void
attachment_icon_view_unselect_path (EAttachmentView *view,
                                    GtkTreePath *path)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_unselect_path (icon_view, path);
}

static void
attachment_icon_view_select_all (EAttachmentView *view)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_select_all (icon_view);
}

static void
attachment_icon_view_unselect_all (EAttachmentView *view)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_unselect_all (icon_view);
}

static void
attachment_icon_view_drag_source_set (EAttachmentView *view,
                                      GdkModifierType start_button_mask,
                                      const GtkTargetEntry *targets,
                                      gint n_targets,
                                      GdkDragAction actions)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_enable_model_drag_source (
        icon_view, start_button_mask, targets, n_targets, actions);
}

static void
attachment_icon_view_drag_dest_set (EAttachmentView *view,
                                    const GtkTargetEntry *targets,
                                    gint n_targets,
                                    GdkDragAction actions)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_enable_model_drag_dest (
        icon_view, targets, n_targets, actions);
}

static void
attachment_icon_view_drag_source_unset (EAttachmentView *view)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_unset_model_drag_source (icon_view);
}

static void
attachment_icon_view_drag_dest_unset (EAttachmentView *view)
{
    GtkIconView *icon_view;

    icon_view = GTK_ICON_VIEW (view);

    gtk_icon_view_unset_model_drag_dest (icon_view);
}

static void
e_attachment_icon_view_class_init (EAttachmentIconViewClass *class)
{
    GObjectClass *object_class;
    GtkWidgetClass *widget_class;
    GtkIconViewClass *icon_view_class;

    g_type_class_add_private (class, sizeof (EAttachmentViewPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = attachment_icon_view_set_property;
    object_class->get_property = attachment_icon_view_get_property;
    object_class->dispose = attachment_icon_view_dispose;
    object_class->finalize = attachment_icon_view_finalize;
    object_class->constructed = attachment_icon_view_constructed;

    widget_class = GTK_WIDGET_CLASS (class);
    widget_class->button_press_event = attachment_icon_view_button_press_event;
    widget_class->button_release_event = attachment_icon_view_button_release_event;
    widget_class->motion_notify_event = attachment_icon_view_motion_notify_event;
    widget_class->key_press_event = attachment_icon_view_key_press_event;
    widget_class->drag_begin = attachment_icon_view_drag_begin;
    widget_class->drag_end = attachment_icon_view_drag_end;
    widget_class->drag_data_get = attachment_icon_view_drag_data_get;
    widget_class->drag_motion = attachment_icon_view_drag_motion;
    widget_class->drag_drop = attachment_icon_view_drag_drop;
    widget_class->drag_data_received = attachment_icon_view_drag_data_received;
    widget_class->popup_menu = attachment_icon_view_popup_menu;

    icon_view_class = GTK_ICON_VIEW_CLASS (class);
    icon_view_class->item_activated = attachment_icon_view_item_activated;

    g_object_class_override_property (
        object_class, PROP_DRAGGING, "dragging");

    g_object_class_override_property (
        object_class, PROP_EDITABLE, "editable");
}

static void
e_attachment_icon_view_init (EAttachmentIconView *icon_view)
{
    icon_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (
        icon_view, E_TYPE_ATTACHMENT_ICON_VIEW,
        EAttachmentIconViewPrivate);

    e_attachment_view_init (E_ATTACHMENT_VIEW (icon_view));

    gtk_icon_view_set_selection_mode (
        GTK_ICON_VIEW (icon_view), GTK_SELECTION_MULTIPLE);
}

static void
e_attachment_icon_view_interface_init (EAttachmentViewInterface *interface)
{
    interface->get_private = attachment_icon_view_get_private;
    interface->get_store = attachment_icon_view_get_store;

    interface->get_path_at_pos = attachment_icon_view_get_path_at_pos;
    interface->get_selected_paths = attachment_icon_view_get_selected_paths;
    interface->path_is_selected = attachment_icon_view_path_is_selected;
    interface->select_path = attachment_icon_view_select_path;
    interface->unselect_path = attachment_icon_view_unselect_path;
    interface->select_all = attachment_icon_view_select_all;
    interface->unselect_all = attachment_icon_view_unselect_all;

    interface->drag_source_set = attachment_icon_view_drag_source_set;
    interface->drag_dest_set = attachment_icon_view_drag_dest_set;
    interface->drag_source_unset = attachment_icon_view_drag_source_unset;
    interface->drag_dest_unset = attachment_icon_view_drag_dest_unset;
}

GtkWidget *
e_attachment_icon_view_new (void)
{
    return g_object_new (E_TYPE_ATTACHMENT_ICON_VIEW, NULL);
}