path: root/calendar/modules/e-task-shell-view.c

/*
 * e-task-shell-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)
 *
 */

#include "e-task-shell-view-private.h"

enum {
    PROP_0,
    PROP_SOURCE_LIST
};

GType e_task_shell_view_type = 0;
static gpointer parent_class;

static void
task_shell_view_get_property (GObject *object,
                              guint property_id,
                              GValue *value,
                              GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_SOURCE_LIST:
            g_value_set_object (
                value, e_task_shell_view_get_source_list (
                E_TASK_SHELL_VIEW (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
task_shell_view_dispose (GObject *object)
{
    e_task_shell_view_private_dispose (E_TASK_SHELL_VIEW (object));

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

static void
task_shell_view_finalize (GObject *object)
{
    e_task_shell_view_private_finalize (E_TASK_SHELL_VIEW (object));

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

static void
task_shell_view_constructed (GObject *object)
{
    /* Chain up to parent's constructed() method. */
    G_OBJECT_CLASS (parent_class)->constructed (object);

    e_task_shell_view_private_constructed (E_TASK_SHELL_VIEW (object));
}

static void
task_shell_view_update_actions (EShellView *shell_view)
{
    ETaskShellViewPrivate *priv;
    EShellContent *shell_content;
    EShellSidebar *shell_sidebar;
    EShellWindow *shell_window;
    GtkAction *action;
    const gchar *label;
    gboolean sensitive;
    guint32 state;

    /* Be descriptive. */
    gboolean any_tasks_selected;
    gboolean has_primary_source;
    gboolean multiple_tasks_selected;
    gboolean primary_source_is_system;
    gboolean selection_has_url;
    gboolean selection_is_assignable;
    gboolean single_task_selected;
    gboolean some_tasks_complete;
    gboolean some_tasks_incomplete;
    gboolean sources_are_editable;

    priv = E_TASK_SHELL_VIEW_GET_PRIVATE (shell_view);

    shell_window = e_shell_view_get_shell_window (shell_view);

    shell_content = e_shell_view_get_shell_content (shell_view);
    state = e_shell_content_check_state (shell_content);

    single_task_selected =
        (state & E_TASK_SHELL_CONTENT_SELECTION_SINGLE);
    multiple_tasks_selected =
        (state & E_TASK_SHELL_CONTENT_SELECTION_MULTIPLE);
    selection_is_assignable =
        (state & E_TASK_SHELL_CONTENT_SELECTION_CAN_ASSIGN);
    sources_are_editable =
        (state & E_TASK_SHELL_CONTENT_SELECTION_CAN_EDIT);
    some_tasks_complete =
        (state & E_TASK_SHELL_CONTENT_SELECTION_HAS_COMPLETE);
    some_tasks_incomplete =
        (state & E_TASK_SHELL_CONTENT_SELECTION_HAS_INCOMPLETE);
    selection_has_url =
        (state & E_TASK_SHELL_CONTENT_SELECTION_HAS_URL);

    shell_sidebar = e_shell_view_get_shell_sidebar (shell_view);
    state = e_shell_sidebar_check_state (shell_sidebar);

    has_primary_source =
        (state & E_TASK_SHELL_SIDEBAR_HAS_PRIMARY_SOURCE);
    primary_source_is_system =
        (state & E_TASK_SHELL_SIDEBAR_PRIMARY_SOURCE_IS_SYSTEM);

    any_tasks_selected =
        (single_task_selected || multiple_tasks_selected);

    action = ACTION (TASK_ASSIGN);
    sensitive =
        single_task_selected && sources_are_editable &&
        selection_is_assignable;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_CLIPBOARD_COPY);
    sensitive = any_tasks_selected;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_CLIPBOARD_CUT);
    sensitive = any_tasks_selected && sources_are_editable;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_CLIPBOARD_PASTE);
    sensitive = sources_are_editable;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_DELETE);
    sensitive = any_tasks_selected && sources_are_editable;
    gtk_action_set_sensitive (action, sensitive);
    if (multiple_tasks_selected)
        label = _("Delete Tasks");
    else
        label = _("Delete Task");
    g_object_set (action, "label", label, NULL);

    action = ACTION (TASK_FORWARD);
    sensitive = single_task_selected;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_LIST_COPY);
    sensitive = has_primary_source;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_LIST_DELETE);
    sensitive = has_primary_source && !primary_source_is_system;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_LIST_PROPERTIES);
    sensitive = has_primary_source;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_LIST_RENAME);
    sensitive = has_primary_source;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_MARK_COMPLETE);
    sensitive =
        any_tasks_selected &&
        sources_are_editable &&
        some_tasks_incomplete;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_MARK_INCOMPLETE);
    sensitive =
        any_tasks_selected &&
        sources_are_editable &&
        some_tasks_complete;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_OPEN);
    sensitive = single_task_selected;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_OPEN_URL);
    sensitive = single_task_selected && selection_has_url;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_PRINT);
    sensitive = single_task_selected;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_PURGE);
    sensitive = sources_are_editable;
    gtk_action_set_sensitive (action, sensitive);

    action = ACTION (TASK_SAVE_AS);
    sensitive = single_task_selected;
    gtk_action_set_sensitive (action, sensitive);
}

static void
task_shell_view_class_init (ETaskShellViewClass *class,
                            GTypeModule *type_module)
{
    GObjectClass *object_class;
    EShellViewClass *shell_view_class;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (ETaskShellViewPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->get_property = task_shell_view_get_property;
    object_class->dispose = task_shell_view_dispose;
    object_class->finalize = task_shell_view_finalize;
    object_class->constructed = task_shell_view_constructed;

    shell_view_class = E_SHELL_VIEW_CLASS (class);
    shell_view_class->label = _("Tasks");
    shell_view_class->icon_name = "evolution-tasks";
    shell_view_class->ui_definition = "evolution-tasks.ui";
    shell_view_class->ui_manager_id = "org.gnome.evolution.tasks";
    shell_view_class->search_options = "/task-search-options";
    shell_view_class->search_rules = "tasktypes.xml";
    shell_view_class->type_module = type_module;
    shell_view_class->new_shell_content = e_task_shell_content_new;
    shell_view_class->new_shell_sidebar = e_task_shell_sidebar_new;
    shell_view_class->update_actions = task_shell_view_update_actions;

    g_object_class_install_property (
        object_class,
        PROP_SOURCE_LIST,
        g_param_spec_object (
            "source-list",
            _("Source List"),
            _("The registry of task lists"),
            E_TYPE_SOURCE_LIST,
            G_PARAM_READABLE));
}

static void
task_shell_view_init (ETaskShellView *task_shell_view,
                      EShellViewClass *shell_view_class)
{
    task_shell_view->priv =
        E_TASK_SHELL_VIEW_GET_PRIVATE (task_shell_view);

    e_task_shell_view_private_init (task_shell_view, shell_view_class);
}

GType
e_task_shell_view_get_type (GTypeModule *type_module)
{
    if (e_task_shell_view_type == 0) {
        const GTypeInfo type_info = {
            sizeof (ETaskShellViewClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) task_shell_view_class_init,
            (GClassFinalizeFunc) NULL,
            type_module,
            sizeof (ETaskShellView),
            0,    /* n_preallocs */
            (GInstanceInitFunc) task_shell_view_init,
            NULL  /* value_table */
        };

        e_task_shell_view_type =
            g_type_module_register_type (
                type_module, E_TYPE_SHELL_VIEW,
                "ETaskShellView", &type_info, 0);
    }

    return e_task_shell_view_type;
}

ESourceList *
e_task_shell_view_get_source_list (ETaskShellView *task_shell_view)
{
    g_return_val_if_fail (E_IS_TASK_SHELL_VIEW (task_shell_view), NULL);

    return task_shell_view->priv->source_list;
}