evolution/modules/calendar/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_CONFIRM_PURGE
};

static gpointer parent_class;
static GType task_shell_view_type;

static void
task_shell_view_set_property (GObject *object,
                              guint property_id,
                              const GValue *value,
                              GParamSpec *pspec)
{
	switch (property_id) {
		case PROP_CONFIRM_PURGE:
			e_task_shell_view_set_confirm_purge (
				E_TASK_SHELL_VIEW (object),
				g_value_get_boolean (value));
			return;
	}

	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
task_shell_view_get_property (GObject *object,
                              guint property_id,
                              GValue *value,
                              GParamSpec *pspec)
{
	switch (property_id) {
		case PROP_CONFIRM_PURGE:
			g_value_set_boolean (
				value, e_task_shell_view_get_confirm_purge (
				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_execute_search (EShellView *shell_view)
{
	ETaskShellContent *task_shell_content;
	EShellWindow *shell_window;
	EShellContent *shell_content;
	GtkRadioAction *action;
	GString *string;
	ECalComponentPreview *task_preview;
	ECalendarTable *task_table;
	ECalModel *model;
	EFilterRule *rule;
	const gchar *format;
	const gchar *text;
	time_t start_range;
	time_t end_range;
	gchar *start, *end;
	gchar *query;
	gchar *temp;
	gint value;

	shell_content = e_shell_view_get_shell_content (shell_view);
	text = e_shell_content_get_search_text (shell_content);

	shell_window = e_shell_view_get_shell_window (shell_view);
	action = GTK_RADIO_ACTION (ACTION (TASK_SEARCH_ANY_FIELD_CONTAINS));
	value = gtk_radio_action_get_current_value (action);

	if (text == NULL || *text == '\0') {
		text = "";
		value = TASK_SEARCH_SUMMARY_CONTAINS;
	}

	switch (value) {
		default:
			text = "";
			/* fall through */

		case TASK_SEARCH_SUMMARY_CONTAINS:
			format = "(contains? \"summary\" %s)";
			break;

		case TASK_SEARCH_DESCRIPTION_CONTAINS:
			format = "(contains? \"description\" %s)";
			break;

		case TASK_SEARCH_ANY_FIELD_CONTAINS:
			format = "(contains? \"any\" %s)";
			break;
	}

	/* Build the query. */
	string = g_string_new ("");
	e_sexp_encode_string (string, text);
	query = g_strdup_printf (format, string->str);
	g_string_free (string, TRUE);

	/* Apply selected filter. */
	value = e_shell_content_get_filter_value (shell_content);
	switch (value) {
		case TASK_FILTER_ANY_CATEGORY:
			break;

		case TASK_FILTER_UNMATCHED:
			temp = g_strdup_printf (
				"(and (has-categories? #f) %s)", query);
			g_free (query);
			query = temp;
			break;

		case TASK_FILTER_NEXT_7_DAYS_TASKS:
			start_range = time (NULL);
			end_range = time_add_day (start_range, 7);
			start = isodate_from_time_t (start_range);
			end = isodate_from_time_t (end_range);

			temp = g_strdup_printf (
				"(and %s (due-in-time-range? "
				"(make-time \"%s\") (make-time \"%s\")))",
				query, start, end);
			g_free (query);
			query = temp;
			break;

		case TASK_FILTER_ACTIVE_TASKS:
			start_range = time (NULL);
			end_range = time_add_day (start_range, 365);
			start = isodate_from_time_t (start_range);
			end = isodate_from_time_t (end_range);

			temp = g_strdup_printf (
				"(and %s (due-in-time-range? "
				"(make-time \"%s\") (make-time \"%s\")) "
				"(not (is-completed?)))",
				query, start, end);
			g_free (query);
			query = temp;
			break;

		case TASK_FILTER_OVERDUE_TASKS:
			start_range = 0;
			end_range = time (NULL);
			start = isodate_from_time_t (start_range);
			end = isodate_from_time_t (end_range);

			temp = g_strdup_printf (
				"(and %s (due-in-time-range? "
				"(make-time \"%s\") (make-time \"%s\")) "
				"(not (is-completed?)))",
				query, start, end);
			g_free (query);
			query = temp;
			break;

		case TASK_FILTER_COMPLETED_TASKS:
			temp = g_strdup_printf (
				"(and (is-completed?) %s)", query);
			g_free (query);
			query = temp;
			break;

		case TASK_FILTER_TASKS_WITH_ATTACHMENTS:
			temp = g_strdup_printf (
				"(and (has-attachments?) %s)", query);
			g_free (query);
			query = temp;
			break;

		default:
		{
			GList *categories;
			const gchar *category_name;

			categories = e_categories_get_list ();
			category_name = g_list_nth_data (categories, value);
			g_list_free (categories);

			temp = g_strdup_printf (
				"(and (has-categories? \"%s\") %s)",
				category_name, query);
			g_free (query);
			query = temp;
			break;
		}
	}

	/* Honor the user's preference to hide completed tasks. */
	temp = calendar_config_get_hide_completed_tasks_sexp (FALSE);
	if (temp != NULL) {
		gchar *temp2;

		temp2 = g_strdup_printf ("(and %s %s)", temp, query);
		g_free (query);
		g_free (temp);
		query = temp2;
	}

	/* XXX This is wrong.  We need to programmatically construct an
	 *     EFilterRule, tell it to build code, and pass the resulting
	 *     expression string to ECalModel. */
	rule = e_filter_rule_new ();
	e_shell_content_set_search_rule (shell_content, rule);
	g_object_unref (rule);

	/* Submit the query. */
	task_shell_content = E_TASK_SHELL_CONTENT (shell_content);
	task_table = e_task_shell_content_get_task_table (task_shell_content);
	model = e_calendar_table_get_model (task_table);
	e_cal_model_set_search_query (model, query);
	g_free (query);

	task_preview =
		e_task_shell_content_get_task_preview (task_shell_content);
	e_web_view_clear (E_WEB_VIEW (task_preview));
}

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->set_property = task_shell_view_set_property;
	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->new_shell_content = e_task_shell_content_new;
	shell_view_class->new_shell_sidebar = e_task_shell_sidebar_new;
	shell_view_class->execute_search = task_shell_view_execute_search;
	shell_view_class->update_actions = task_shell_view_update_actions;

	g_object_class_install_property (
		object_class,
		PROP_CONFIRM_PURGE,
		g_param_spec_boolean (
			"confirm-purge",
			"Confirm Purge",
			NULL,
			TRUE,
			G_PARAM_READWRITE));
}

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 (void)
{
	return task_shell_view_type;
}

void
e_task_shell_view_register_type (GTypeModule *type_module)
{
	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 */
	};

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

gboolean
e_task_shell_view_get_confirm_purge (ETaskShellView *task_shell_view)
{
	g_return_val_if_fail (E_IS_TASK_SHELL_VIEW (task_shell_view), FALSE);

	return task_shell_view->priv->confirm_purge;
}

void
e_task_shell_view_set_confirm_purge (ETaskShellView *task_shell_view,
                                     gboolean confirm_purge)
{
	g_return_if_fail (E_IS_TASK_SHELL_VIEW (task_shell_view));

	task_shell_view->priv->confirm_purge = confirm_purge;

	g_object_notify (G_OBJECT (task_shell_view), "confirm-purge");
}