path: root/e-util/e-attachment-bar.c

/*
 * e-attachment-bar.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-bar.h"

#include <glib/gi18n.h>

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

#define E_ATTACHMENT_BAR_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_ATTACHMENT_BAR, EAttachmentBarPrivate))

#define NUM_VIEWS 2

struct _EAttachmentBarPrivate {
    GtkTreeModel *model;
    GtkWidget *vbox;
    GtkWidget *expander;
    GtkWidget *combo_box;
    GtkWidget *icon_view;
    GtkWidget *tree_view;
    GtkWidget *icon_frame;
    GtkWidget *tree_frame;
    GtkWidget *status_icon;
    GtkWidget *status_label;
    GtkWidget *save_all_button;
    GtkWidget *save_one_button;

    gint active_view;
    guint expanded : 1;
};

enum {
    PROP_0,
    PROP_ACTIVE_VIEW,
    PROP_DRAGGING,
    PROP_EDITABLE,
    PROP_EXPANDED,
    PROP_STORE
};

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

G_DEFINE_TYPE_WITH_CODE (
    EAttachmentBar,
    e_attachment_bar,
    GTK_TYPE_VBOX,
    G_IMPLEMENT_INTERFACE (
        E_TYPE_ATTACHMENT_VIEW,
        e_attachment_bar_interface_init))

static void
attachment_bar_update_status (EAttachmentBar *bar)
{
    EAttachmentStore *store;
    GtkActivatable *activatable;
    GtkAction *action;
    GtkLabel *label;
    gint num_attachments;
    guint64 total_size;
    gchar *display_size;
    gchar *markup;

    store = E_ATTACHMENT_STORE (bar->priv->model);
    label = GTK_LABEL (bar->priv->status_label);

    num_attachments = e_attachment_store_get_num_attachments (store);
    total_size = e_attachment_store_get_total_size (store);
    display_size = g_format_size (total_size);

    if (total_size > 0)
        markup = g_strdup_printf (
            "<b>%d</b> %s (%s)", num_attachments, ngettext (
            "Attachment", "Attachments", num_attachments),
            display_size);
    else
        markup = g_strdup_printf (
            "<b>%d</b> %s", num_attachments, ngettext (
            "Attachment", "Attachments", num_attachments));
    gtk_label_set_markup (label, markup);
    g_free (markup);

    activatable = GTK_ACTIVATABLE (bar->priv->save_all_button);
    action = gtk_activatable_get_related_action (activatable);
    gtk_action_set_visible (action, (num_attachments > 1));

    activatable = GTK_ACTIVATABLE (bar->priv->save_one_button);
    action = gtk_activatable_get_related_action (activatable);
    gtk_action_set_visible (action, (num_attachments == 1));

    g_free (display_size);
}

static void
attachment_bar_set_store (EAttachmentBar *bar,
                          EAttachmentStore *store)
{
    g_return_if_fail (E_IS_ATTACHMENT_STORE (store));

    bar->priv->model = g_object_ref (store);

    gtk_icon_view_set_model (
        GTK_ICON_VIEW (bar->priv->icon_view),
        bar->priv->model);
    gtk_tree_view_set_model (
        GTK_TREE_VIEW (bar->priv->tree_view),
        bar->priv->model);

    g_signal_connect_object (
        bar->priv->model, "notify::num-attachments",
        G_CALLBACK (attachment_bar_update_status), bar,
        G_CONNECT_SWAPPED);

    g_signal_connect_object (
        bar->priv->model, "notify::total-size",
        G_CALLBACK (attachment_bar_update_status), bar,
        G_CONNECT_SWAPPED);

    /* Initialize */
    attachment_bar_update_status (bar);
}

static void
attachment_bar_set_property (GObject *object,
                             guint property_id,
                             const GValue *value,
                             GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_ACTIVE_VIEW:
                e_attachment_bar_set_active_view (
                E_ATTACHMENT_BAR (object),
                g_value_get_int (value));
            return;

        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;

        case PROP_EXPANDED:
            e_attachment_bar_set_expanded (
                E_ATTACHMENT_BAR (object),
                g_value_get_boolean (value));
            return;
        case PROP_STORE:
            attachment_bar_set_store (
                E_ATTACHMENT_BAR (object),
                g_value_get_object (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
attachment_bar_get_property (GObject *object,
                             guint property_id,
                             GValue *value,
                             GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_ACTIVE_VIEW:
            g_value_set_int (
                value,
                e_attachment_bar_get_active_view (
                E_ATTACHMENT_BAR (object)));
            return;

        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;

        case PROP_EXPANDED:
            g_value_set_boolean (
                value,
                e_attachment_bar_get_expanded (
                E_ATTACHMENT_BAR (object)));
            return;
        case PROP_STORE:
            g_value_set_object (
                value,
                e_attachment_bar_get_store (
                E_ATTACHMENT_BAR (object)));
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
attachment_bar_dispose (GObject *object)
{
    EAttachmentBarPrivate *priv;

    priv = E_ATTACHMENT_BAR_GET_PRIVATE (object);

    if (priv->model != NULL) {
        g_object_unref (priv->model);
        priv->model = NULL;
    }

    if (priv->vbox != NULL) {
        g_object_unref (priv->vbox);
        priv->vbox = NULL;
    }

    if (priv->expander != NULL) {
        g_object_unref (priv->expander);
        priv->expander = NULL;
    }

    if (priv->combo_box != NULL) {
        g_object_unref (priv->combo_box);
        priv->combo_box = NULL;
    }

    if (priv->icon_view != NULL) {
        g_object_unref (priv->icon_view);
        priv->icon_view = NULL;
    }

    if (priv->tree_view != NULL) {
        g_object_unref (priv->tree_view);
        priv->tree_view = NULL;
    }

    if (priv->icon_frame != NULL) {
        g_object_unref (priv->icon_frame);
        priv->icon_frame = NULL;
    }

    if (priv->tree_frame != NULL) {
        g_object_unref (priv->tree_frame);
        priv->tree_frame = NULL;
    }

    if (priv->status_icon != NULL) {
        g_object_unref (priv->status_icon);
        priv->status_icon = NULL;
    }

    if (priv->status_label != NULL) {
        g_object_unref (priv->status_label);
        priv->status_label = NULL;
    }

    if (priv->save_all_button != NULL) {
        g_object_unref (priv->save_all_button);
        priv->save_all_button = NULL;
    }

    if (priv->save_one_button != NULL) {
        g_object_unref (priv->save_one_button);
        priv->save_one_button = NULL;
    }

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

static void
attachment_bar_constructed (GObject *object)
{
    EAttachmentBarPrivate *priv;
    GSettings *settings;

    priv = E_ATTACHMENT_BAR_GET_PRIVATE (object);

    /* Set up property-to-property bindings. */

    g_object_bind_property (
        object, "active-view",
        priv->combo_box, "active",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    g_object_bind_property (
        object, "dragging",
        priv->icon_view, "dragging",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    g_object_bind_property (
        object, "dragging",
        priv->tree_view, "dragging",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    g_object_bind_property (
        object, "editable",
        priv->icon_view, "editable",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    g_object_bind_property (
        object, "editable",
        priv->tree_view, "editable",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    g_object_bind_property (
        object, "expanded",
        priv->expander, "expanded",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    g_object_bind_property (
        object, "expanded",
        priv->combo_box, "visible",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    g_object_bind_property (
        object, "expanded",
        priv->vbox, "visible",
        G_BINDING_BIDIRECTIONAL |
        G_BINDING_SYNC_CREATE);

    /* Set up property-to-GSettings bindings. */
    settings = g_settings_new ("org.gnome.evolution.shell");
    g_settings_bind (
        settings, "attachment-view",
        object, "active-view",
        G_SETTINGS_BIND_DEFAULT);
    g_object_unref (settings);

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

static EAttachmentViewPrivate *
attachment_bar_get_private (EAttachmentView *view)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    return e_attachment_view_get_private (view);
}

static GtkTreePath *
attachment_bar_get_path_at_pos (EAttachmentView *view,
                                gint x,
                                gint y)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    return e_attachment_view_get_path_at_pos (view, x, y);
}

static EAttachmentStore *
attachment_bar_get_store (EAttachmentView *view)
{
    return e_attachment_bar_get_store (E_ATTACHMENT_BAR (view));
}

static GList *
attachment_bar_get_selected_paths (EAttachmentView *view)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    return e_attachment_view_get_selected_paths (view);
}

static gboolean
attachment_bar_path_is_selected (EAttachmentView *view,
                                 GtkTreePath *path)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    return e_attachment_view_path_is_selected (view, path);
}

static void
attachment_bar_select_path (EAttachmentView *view,
                            GtkTreePath *path)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    e_attachment_view_select_path (view, path);
}

static void
attachment_bar_unselect_path (EAttachmentView *view,
                              GtkTreePath *path)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    e_attachment_view_unselect_path (view, path);
}

static void
attachment_bar_select_all (EAttachmentView *view)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    e_attachment_view_select_all (view);
}

static void
attachment_bar_unselect_all (EAttachmentView *view)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    e_attachment_view_unselect_all (view);
}

static void
attachment_bar_update_actions (EAttachmentView *view)
{
    EAttachmentBar *bar;

    bar = E_ATTACHMENT_BAR (view);
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);

    e_attachment_view_update_actions (view);
}

static void
e_attachment_bar_class_init (EAttachmentBarClass *class)
{
    GObjectClass *object_class;

    g_type_class_add_private (class, sizeof (EAttachmentBarPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = attachment_bar_set_property;
    object_class->get_property = attachment_bar_get_property;
    object_class->dispose = attachment_bar_dispose;
    object_class->constructed = attachment_bar_constructed;

    g_object_class_install_property (
        object_class,
        PROP_ACTIVE_VIEW,
        g_param_spec_int (
            "active-view",
            "Active View",
            NULL,
            0,
            NUM_VIEWS,
            0,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_EXPANDED,
        g_param_spec_boolean (
            "expanded",
            "Expanded",
            NULL,
            FALSE,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT));

    g_object_class_install_property (
        object_class,
        PROP_STORE,
        g_param_spec_object (
            "store",
            "Attachment Store",
            NULL,
            E_TYPE_ATTACHMENT_STORE,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT_ONLY));

    g_object_class_override_property (
        object_class, PROP_DRAGGING, "dragging");

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

static void
e_attachment_bar_interface_init (EAttachmentViewInterface *interface)
{
    interface->get_private = attachment_bar_get_private;
    interface->get_store = attachment_bar_get_store;
    interface->get_path_at_pos = attachment_bar_get_path_at_pos;
    interface->get_selected_paths = attachment_bar_get_selected_paths;
    interface->path_is_selected = attachment_bar_path_is_selected;
    interface->select_path = attachment_bar_select_path;
    interface->unselect_path = attachment_bar_unselect_path;
    interface->select_all = attachment_bar_select_all;
    interface->unselect_all = attachment_bar_unselect_all;
    interface->update_actions = attachment_bar_update_actions;
}

static void
e_attachment_bar_init (EAttachmentBar *bar)
{
    EAttachmentView *view;
    GtkSizeGroup *size_group;
    GtkWidget *container;
    GtkWidget *widget;
    GtkAction *action;

    bar->priv = E_ATTACHMENT_BAR_GET_PRIVATE (bar);

    gtk_box_set_spacing (GTK_BOX (bar), 6);

    /* Keep the expander label and save button the same height. */
    size_group = gtk_size_group_new (GTK_SIZE_GROUP_VERTICAL);

    /* Construct the Attachment Views */

    container = GTK_WIDGET (bar);

    widget = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
    gtk_box_pack_end (GTK_BOX (container), widget, FALSE, FALSE, 0);
    bar->priv->vbox = g_object_ref (widget);
    gtk_widget_show (widget);

    container = bar->priv->vbox;

    widget = gtk_frame_new (NULL);
    gtk_frame_set_shadow_type (GTK_FRAME (widget), GTK_SHADOW_IN);
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    bar->priv->icon_frame = g_object_ref (widget);
    gtk_widget_show (widget);

    container = widget;

    widget = e_attachment_icon_view_new ();
    gtk_widget_set_can_focus (widget, TRUE);
    gtk_icon_view_set_model (GTK_ICON_VIEW (widget), bar->priv->model);
    gtk_container_add (GTK_CONTAINER (container), widget);
    bar->priv->icon_view = g_object_ref (widget);
    gtk_widget_show (widget);

    container = bar->priv->vbox;

    widget = gtk_frame_new (NULL);
    gtk_frame_set_shadow_type (GTK_FRAME (widget), GTK_SHADOW_IN);
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    bar->priv->tree_frame = g_object_ref (widget);
    gtk_widget_hide (widget);

    container = widget;

    widget = e_attachment_tree_view_new ();
    gtk_widget_set_can_focus (widget, TRUE);
    gtk_tree_view_set_model (GTK_TREE_VIEW (widget), bar->priv->model);
    gtk_container_add (GTK_CONTAINER (container), widget);
    bar->priv->tree_view = g_object_ref (widget);
    gtk_widget_show (widget);

    /* Construct the Controls */

    container = GTK_WIDGET (bar);

    widget = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 12);
    gtk_box_pack_end (GTK_BOX (container), widget, FALSE, FALSE, 0);
    gtk_widget_show (widget);

    container = widget;

    widget = gtk_expander_new (NULL);
    gtk_expander_set_spacing (GTK_EXPANDER (widget), 0);
    gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
    bar->priv->expander = g_object_ref (widget);
    gtk_widget_show (widget);

    /* The "Save All" button proxies the "save-all" action from
     * one of the two attachment views.  Doesn't matter which. */
    widget = gtk_button_new ();
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);
    action = e_attachment_view_get_action (view, "save-all");
    gtk_button_set_image (GTK_BUTTON (widget), gtk_image_new ());
    gtk_activatable_set_related_action (GTK_ACTIVATABLE (widget), action);
    gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
    bar->priv->save_all_button = g_object_ref (widget);
    gtk_widget_show (widget);

    /* Same deal with the "Save" button. */
    widget = gtk_button_new ();
    view = E_ATTACHMENT_VIEW (bar->priv->icon_view);
    action = e_attachment_view_get_action (view, "save-one");
    gtk_button_set_image (GTK_BUTTON (widget), gtk_image_new ());
    gtk_activatable_set_related_action (GTK_ACTIVATABLE (widget), action);
    gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
    bar->priv->save_one_button = g_object_ref (widget);
    gtk_widget_show (widget);

    widget = gtk_alignment_new (1.0, 0.5, 0.0, 0.0);
    gtk_box_pack_start (GTK_BOX (container), widget, TRUE, TRUE, 0);
    gtk_widget_show (widget);

    container = widget;

    widget = gtk_combo_box_text_new ();
    gtk_size_group_add_widget (size_group, widget);
    gtk_combo_box_text_append_text (
        GTK_COMBO_BOX_TEXT (widget), _("Icon View"));
    gtk_combo_box_text_append_text (
        GTK_COMBO_BOX_TEXT (widget), _("List View"));
    gtk_container_add (GTK_CONTAINER (container), widget);
    bar->priv->combo_box = g_object_ref (widget);
    gtk_widget_show (widget);

    container = bar->priv->expander;

    widget = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
    gtk_size_group_add_widget (size_group, widget);
    gtk_expander_set_label_widget (GTK_EXPANDER (container), widget);
    gtk_widget_show (widget);

    container = widget;

    widget = gtk_image_new_from_icon_name (
        "mail-attachment", GTK_ICON_SIZE_MENU);
    gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
    bar->priv->status_icon = g_object_ref (widget);
    gtk_widget_show (widget);

    widget = gtk_label_new (NULL);
    gtk_label_set_use_markup (GTK_LABEL (widget), TRUE);
    gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
    bar->priv->status_label = g_object_ref (widget);
    gtk_widget_show (widget);

    g_object_unref (size_group);
}

GtkWidget *
e_attachment_bar_new (EAttachmentStore *store)
{
    g_return_val_if_fail (E_IS_ATTACHMENT_STORE (store), NULL);

    return g_object_new (
        E_TYPE_ATTACHMENT_BAR,
        "editable", FALSE,
        "store", store, NULL);
}

gint
e_attachment_bar_get_active_view (EAttachmentBar *bar)
{
    g_return_val_if_fail (E_IS_ATTACHMENT_BAR (bar), 0);

    return bar->priv->active_view;
}

void
e_attachment_bar_set_active_view (EAttachmentBar *bar,
                                  gint active_view)
{
    EAttachmentView *source;
    EAttachmentView *target;

    g_return_if_fail (E_IS_ATTACHMENT_BAR (bar));
    g_return_if_fail (active_view >= 0 && active_view < NUM_VIEWS);

    if (active_view == bar->priv->active_view)
        return;

    bar->priv->active_view = active_view;

    if (active_view == 0) {
        gtk_widget_show (bar->priv->icon_frame);
        gtk_widget_hide (bar->priv->tree_frame);
    } else {
        gtk_widget_hide (bar->priv->icon_frame);
        gtk_widget_show (bar->priv->tree_frame);
    }

    /* Synchronize the item selection of the view we're
     * switching TO with the view we're switching FROM. */
    if (active_view == 0) {
        /* from tree view to icon view */
        source = E_ATTACHMENT_VIEW (bar->priv->tree_view);
        target = E_ATTACHMENT_VIEW (bar->priv->icon_view);
    } else {
        /* from icon view to tree view */
        source = E_ATTACHMENT_VIEW (bar->priv->icon_view);
        target = E_ATTACHMENT_VIEW (bar->priv->tree_view);
    }

    e_attachment_view_sync_selection (source, target);

    g_object_notify (G_OBJECT (bar), "active-view");
}

gboolean
e_attachment_bar_get_expanded (EAttachmentBar *bar)
{
    g_return_val_if_fail (E_IS_ATTACHMENT_BAR (bar), FALSE);

    return bar->priv->expanded;
}

void
e_attachment_bar_set_expanded (EAttachmentBar *bar,
                                    gboolean expanded)
{
    g_return_if_fail (E_IS_ATTACHMENT_BAR (bar));

    if (bar->priv->expanded == expanded)
        return;

    bar->priv->expanded = expanded;

    g_object_notify (G_OBJECT (bar), "expanded");
}

EAttachmentStore *
e_attachment_bar_get_store (EAttachmentBar *bar)
{
    g_return_val_if_fail (E_IS_ATTACHMENT_BAR (bar), NULL);

    return E_ATTACHMENT_STORE (bar->priv->model);
}