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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* busy-dialog.c
* Copyright (C) 2018 Ell
*
* 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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "libgimp/stdplugins-intl.h"
#define PLUG_IN_PROC "plug-in-busy-dialog"
#define PLUG_IN_BINARY "busy-dialog"
#define PLUG_IN_ROLE "gimp-busy-dialog"
typedef struct
{
GIOChannel *read_channel;
GIOChannel *write_channel;
} Context;
typedef struct _BusyDialog BusyDialog;
typedef struct _BusyDialogClass BusyDialogClass;
struct _BusyDialog
{
GimpPlugIn parent_instance;
};
struct _BusyDialogClass
{
GimpPlugInClass parent_class;
};
#define BUSY_DIALOG_TYPE (busy_dialog_get_type ())
#define BUSY_DIALOG(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), BUSY_DIALOG_TYPE, BusyDialog))
GType busy_dialog_get_type (void) G_GNUC_CONST;
static GList * busy_dialog_query_procedures (GimpPlugIn *plug_in);
static GimpProcedure * busy_dialog_create_procedure (GimpPlugIn *plug_in,
const gchar *name);
static GimpValueArray * busy_dialog_run (GimpProcedure *procedure,
GimpProcedureConfig *config,
gpointer run_data);
static GimpPDBStatusType busy_dialog (gint read_fd,
gint write_fd,
const gchar *message,
gboolean cancelable);
static gboolean busy_dialog_read_channel_notify (GIOChannel *source,
GIOCondition condition,
Context *context);
static gboolean busy_dialog_delete_event (GtkDialog *dialog,
GdkEvent *event,
Context *context);
static void busy_dialog_response (GtkDialog *dialog,
gint response_id,
Context *context);
G_DEFINE_TYPE (BusyDialog, busy_dialog, GIMP_TYPE_PLUG_IN)
GIMP_MAIN (BUSY_DIALOG_TYPE)
DEFINE_STD_SET_I18N
static void
busy_dialog_class_init (BusyDialogClass *klass)
{
GimpPlugInClass *plug_in_class = GIMP_PLUG_IN_CLASS (klass);
plug_in_class->query_procedures = busy_dialog_query_procedures;
plug_in_class->create_procedure = busy_dialog_create_procedure;
plug_in_class->set_i18n = STD_SET_I18N;
}
static void
busy_dialog_init (BusyDialog *busy_dialog)
{
}
static GList *
busy_dialog_query_procedures (GimpPlugIn *plug_in)
{
return g_list_append (NULL, g_strdup (PLUG_IN_PROC));
}
static GimpProcedure *
busy_dialog_create_procedure (GimpPlugIn *plug_in,
const gchar *name)
{
GimpProcedure *procedure = NULL;
if (! strcmp (name, PLUG_IN_PROC))
{
procedure = gimp_procedure_new (plug_in, name,
GIMP_PDB_PROC_TYPE_PLUGIN,
busy_dialog_run, NULL, NULL);
gimp_procedure_set_documentation (procedure,
"Show a dialog while waiting for an "
"operation to finish",
"Used by GIMP to display a dialog, "
"containing a spinner and a custom "
"message, while waiting for an "
"ongoing operation to finish. "
"Optionally, the dialog may provide "
"a \"Cancel\" button, which can be used "
"to cancel the operation.",
name);
gimp_procedure_set_attribution (procedure,
"Ell",
"Ell",
"2018");
gimp_procedure_add_enum_argument (procedure, "run-mode",
"Run mode",
"The run mode",
GIMP_TYPE_RUN_MODE,
GIMP_RUN_INTERACTIVE,
G_PARAM_READWRITE);
gimp_procedure_add_int_argument (procedure, "read-fd",
"The read file descriptor",
"The read file descriptor",
G_MININT, G_MAXINT, 0,
G_PARAM_READWRITE);
gimp_procedure_add_int_argument (procedure, "write-fd",
"The write file descriptor",
"The write file descriptor",
G_MININT, G_MAXINT, 0,
G_PARAM_READWRITE);
gimp_procedure_add_string_argument (procedure, "message",
"The message",
"The message",
NULL,
G_PARAM_READWRITE);
gimp_procedure_add_boolean_argument (procedure, "cancelable",
"Whether the dialog is cancelable",
"Whether the dialog is cancelable",
FALSE,
G_PARAM_READWRITE);
}
return procedure;
}
static GimpValueArray *
busy_dialog_run (GimpProcedure *procedure,
GimpProcedureConfig *config,
gpointer run_data)
{
GimpValueArray *return_vals = NULL;
GimpPDBStatusType status = GIMP_PDB_SUCCESS;
GimpRunMode run_mode = GIMP_RUN_INTERACTIVE;
gint read_fd;
gint write_fd;
const gchar *message;
gboolean cancelable;
g_object_get (config,
"run-mode", &run_mode,
"read-fd", &read_fd,
"write-fd", &write_fd,
"message", &message,
"cancelable", &cancelable,
NULL);
switch (run_mode)
{
case GIMP_RUN_INTERACTIVE:
case GIMP_RUN_NONINTERACTIVE:
case GIMP_RUN_WITH_LAST_VALS:
status = busy_dialog (read_fd, write_fd, message, cancelable);
break;
default:
status = GIMP_PDB_CALLING_ERROR;
break;
}
return_vals = gimp_procedure_new_return_values (procedure, status, NULL);
return return_vals;
}
static GimpPDBStatusType
busy_dialog (gint read_fd,
gint write_fd,
const gchar *message,
gboolean cancelable)
{
Context context;
GtkWidget *window;
GtkWidget *content_area;
GtkWidget *vbox;
GtkWidget *label;
GtkWidget *box;
#ifdef G_OS_WIN32
context.read_channel = g_io_channel_win32_new_fd (read_fd);
context.write_channel = g_io_channel_win32_new_fd (write_fd);
#else
context.read_channel = g_io_channel_unix_new (read_fd);
context.write_channel = g_io_channel_unix_new (write_fd);
#endif
g_io_channel_set_close_on_unref (context.read_channel, TRUE);
g_io_channel_set_close_on_unref (context.write_channel, TRUE);
/* triggered when the operation is finished in the main app, and we should
* quit.
*/
g_io_add_watch (context.read_channel, G_IO_IN | G_IO_ERR | G_IO_HUP,
(GIOFunc) busy_dialog_read_channel_notify,
&context);
/* call gtk_init() before gimp_ui_init(), to avoid DESKTOP_STARTUP_ID from
* taking effect -- we want the dialog to be prominently displayed above
* other plug-in windows.
*/
gtk_init (NULL, NULL);
gimp_ui_init (PLUG_IN_BINARY);
/* the main window */
if (! cancelable)
{
window = g_object_new (GTK_TYPE_WINDOW,
"title", _("Please Wait"),
"skip-taskbar-hint", TRUE,
"deletable", FALSE,
"resizable", FALSE,
"role", "gimp-busy-dialog",
"type-hint", GDK_WINDOW_TYPE_HINT_DIALOG,
"window-position", GTK_WIN_POS_CENTER,
NULL);
g_signal_connect (window, "delete-event", G_CALLBACK (gtk_true), NULL);
content_area = window;
}
else
{
window = g_object_new (GTK_TYPE_DIALOG,
"title", _("Please Wait"),
"skip-taskbar-hint", TRUE,
"resizable", FALSE,
"role", "gimp-busy-dialog",
"window-position", GTK_WIN_POS_CENTER,
NULL);
gtk_dialog_add_button (GTK_DIALOG (window),
_("_Cancel"), GTK_RESPONSE_CANCEL);
g_signal_connect (window, "delete-event",
G_CALLBACK (busy_dialog_delete_event),
&context);
g_signal_connect (window, "response",
G_CALLBACK (busy_dialog_response),
&context);
content_area = gtk_dialog_get_content_area (GTK_DIALOG (window));
}
/* the main vbox */
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 16);
gtk_container_add (GTK_CONTAINER (content_area), vbox);
gtk_widget_show (vbox);
/* the title label */
label = gtk_label_new (_("Please wait for the operation to complete"));
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
-1);
gtk_box_pack_start (GTK_BOX (vbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
/* the busy box */
box = gimp_busy_box_new (message);
gtk_container_set_border_width (GTK_CONTAINER (box), 8);
gtk_box_pack_start (GTK_BOX (vbox), box, TRUE, TRUE, 0);
gtk_widget_show (box);
gtk_window_present (GTK_WINDOW (window));
gtk_main ();
gtk_widget_destroy (window);
g_clear_pointer (&context.read_channel, g_io_channel_unref);
g_clear_pointer (&context.write_channel, g_io_channel_unref);
return GIMP_PDB_SUCCESS;
}
static gboolean
busy_dialog_read_channel_notify (GIOChannel *source,
GIOCondition condition,
Context *context)
{
gtk_main_quit ();
return FALSE;
}
static gboolean
busy_dialog_delete_event (GtkDialog *dialog,
GdkEvent *event,
Context *context)
{
gtk_dialog_response (dialog, GTK_RESPONSE_CANCEL);
return TRUE;
}
static void
busy_dialog_response (GtkDialog *dialog,
gint response_id,
Context *context)
{
switch (response_id)
{
case GTK_RESPONSE_CANCEL:
{
GtkWidget *button;
gtk_dialog_set_response_sensitive (dialog, GTK_RESPONSE_CANCEL, FALSE);
button = gtk_dialog_get_widget_for_response (dialog,
GTK_RESPONSE_CANCEL);
gtk_button_set_label (GTK_BUTTON (button), _("Canceling..."));
/* signal the cancellation request to the main app */
g_clear_pointer (&context->write_channel, g_io_channel_unref);
}
break;
default:
break;
}
}
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