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/*
*
* Copyright (c) International Business Machines Corp., 2001
*
* 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Module: plugin_cb.c
*/
#include <frontend.h>
#include <gtk/gtk.h>
#include "support.h"
#include "widget.h"
#include "task.h"
#include "plugin_cb.h"
#include "thing.h"
#include "logging.h"
#include "help.h"
/*
*
* void on_plugin_selection_button_clicked (GtkButton *, gpointer)
*
* Description:
* This routine responds to plugin selection with creating the
* task given and creating the acceptable object selection dialog
* window to proceed with acceptable parameter and option selections.
*
* Entry:
* button - address of the GtkButton widget
* user_data - contains code corresponding to task to initiate
*
* Exit:
* The task context is created with the given plugin and task code.
* This window is hidden and another standard selection window is displayed.
*
*/
void on_plugin_selection_button_clicked (GtkButton *button, gpointer user_data)
{
GList *window_list;
GtkWidget *clist;
GtkWidget *next_window;
GtkWidget *selection_window;
task_action_t action;
plugin_handle_t plugin;
plugin_handle_t prev_plugin;
/*
* Hide the selection window and either redisplay the existing task window
* if it exists and the plugin selection did not change. If the task window
* does not exist, create it. However, if the plugin selections changed and
* the task window existed then destroy the current task window and create
* a new one.
*/
action = GPOINTER_TO_UINT (user_data);
selection_window = gtk_widget_get_toplevel (GTK_WIDGET (button));
clist = lookup_widget (GTK_WIDGET (button), "selection_window_clist");
plugin = GPOINTER_TO_UINT (get_single_select_current_row_data (GTK_CLIST (clist)));
window_list = get_window_list (selection_window);
next_window = gtk_object_get_data (GTK_OBJECT (selection_window), "next_window_id");
prev_plugin = GPOINTER_TO_UINT (gtk_object_get_data (GTK_OBJECT (selection_window), "previous_plugin"));
if (window_list == NULL)
window_list = g_list_append (window_list, selection_window);
if (plugin != prev_plugin)
{
gint rc;
task_handle_t handle;
rc = evms_create_task (plugin, action, &handle);
if (rc != SUCCESS)
{
log_error ("%s: evms_create_task() returned error code %d.\n", __FUNCTION__, rc);
display_results_window (rc, NULL, _("Unable to create the task context."),
NULL, FALSE, selection_window);
}
else
{
gint count;
gchar *next_button_text=NULL;
/*
* If we already created the next window for selecting
* the acceptable objects (and maybe even other follow-on
* windows like for options), make sure we destroy them
* all and clean up the list since our plugin selections
* have apperently changed and so all the following panels
* need to be recreated.
*/
if (next_window != NULL)
destroy_window_list (g_list_find (window_list, next_window));
/*
* If we have no options then set the Next button label to
* indicate the actual task action rather than "Next".
*/
if (evms_get_option_count (handle, &count) == SUCCESS && count == 0)
next_button_text = get_task_action_string (handle);
next_window = create_standard_selection_window (_("Select Plugin Acceptable Objects"),
next_button_text,
acceptable_objects_help_text,
on_acceptable_objects_clist_realize,
on_acceptable_objects_button_clicked,
on_button_clicked_display_prev_window,
on_button_clicked_destroy_window_list,
on_acceptable_objects_clist_select_row,
on_acceptable_objects_clist_unselect_row,
GUINT_TO_POINTER (handle));
window_list = g_list_append (window_list, next_window);
set_window_list (next_window, window_list);
set_window_list (selection_window, window_list);
gtk_object_set_data (GTK_OBJECT (selection_window), "next_window_id" , next_window);
gtk_object_set_data (GTK_OBJECT (selection_window), "previous_plugin", GUINT_TO_POINTER (plugin));
/*
* Connect the destroy signal to the next window. If the window is
* destroyed, so is the task context.
*/
gtk_signal_connect (GTK_OBJECT (next_window), "destroy",
GTK_SIGNAL_FUNC (on_task_window_destroy), GUINT_TO_POINTER (handle));
if (next_button_text)
g_free (next_button_text);
gtk_widget_show (next_window);
gtk_widget_hide (selection_window);
}
}
else
{
gtk_widget_show (next_window);
gtk_widget_hide (selection_window);
}
}
/*
*
* void on_plugin_selection_clist_realize (GtkCList *, evms_plugin_code_t,
* plugin_search_flags_t flags)
*
* Description:
* This routine populates the given GtkCList with the list
* of plugins desired.
*
* Entry:
* clist - address of the selections GtkCList widget
* code - the plugin code to enumerate and add to the list
* flags - plugin search flags
*
* Exit:
* Selection list populated with plugins of the given type
*
*/
void on_plugin_selection_clist_realize (GtkCList *clist, evms_plugin_code_t code,
plugin_search_flags_t flags)
{
gint rc;
handle_array_t *plugins;
rc = evms_get_plugin_list (code, flags, &plugins);
if (rc != SUCCESS)
{
log_error ("%s: evms_get_plugin_list() returned error code %d.\n", __FUNCTION__, rc);
}
else
{
gint i;
gboolean is_selected = (plugins->count == 1);
/*
* Since we will be using the second column for the plugin description
* and hiding the unused third column, set the column to autoresize
* based upon the length of the longest description so it does not
* get initially cut off.
*/
gtk_clist_set_column_auto_resize (clist, SL_SIZE_COLUMN, TRUE);
for (i=0; i < plugins->count; i++)
add_thing_to_selection_list (clist, plugins->handle[i], is_selected);
evms_free (plugins);
}
/*
* We won't need the standard three columns (pixmap, size, description) for
* the plugin list so hide the last column.
*/
gtk_clist_set_column_visibility (clist, SL_DESC_COLUMN, FALSE);
}
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