mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-05 08:56:16 +01:00
444 lines
13 KiB
C
444 lines
13 KiB
C
/*
|
|
* Copyright © 2010 Codethink Limited
|
|
*
|
|
* 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
|
|
* licence or (at your option) any later version.
|
|
*
|
|
* This library 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 this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*
|
|
* Authors: Ryan Lortie <desrt@desrt.ca>
|
|
*/
|
|
|
|
#include "gapplicationcommandline.h"
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
G_DEFINE_TYPE (GApplicationCommandLine, g_application_command_line, G_TYPE_OBJECT)
|
|
|
|
/**
|
|
* SECTION:gapplicationcommandline
|
|
* @title: GApplicationCommandLine
|
|
* @short_description: A class representing a command-line invocation of
|
|
* this application.
|
|
* @see_also: #GApplication
|
|
*
|
|
* #GApplicationCommandLine represents a command-line invocation of
|
|
* containing application. It is created by #GApplication and emitted
|
|
* in the <varname>command-line</varname> signal and virtual function.
|
|
*
|
|
* The class contains the list of arguments that the program was invoked
|
|
* with. It is also possible to query if the commandline invocation was
|
|
* local (ie: the current process is running in direct response to the
|
|
* invocation) or remote (ie: some other process forwarded the
|
|
* commandline to this process).
|
|
*
|
|
* The exit status of the originally-invoked process may be set and
|
|
* messages can be printed to stdout or stderr of that process. The
|
|
* lifecycle of the originally-invoked process is tied to the lifecycle
|
|
* of this object (ie: the process exits when the last reference is
|
|
* dropped).
|
|
**/
|
|
|
|
enum
|
|
{
|
|
PROP_NONE,
|
|
PROP_ARGUMENTS,
|
|
PROP_PLATFORM_DATA,
|
|
PROP_IS_REMOTE
|
|
};
|
|
|
|
struct _GApplicationCommandLinePrivate
|
|
{
|
|
GVariant *platform_data;
|
|
GVariant *arguments;
|
|
GVariant *cwd;
|
|
gint exit_status;
|
|
};
|
|
|
|
/* All subclasses represent remote invocations of some kind. */
|
|
#define IS_REMOTE(cmdline) (G_TYPE_FROM_INSTANCE (cmdline) != \
|
|
G_TYPE_APPLICATION_COMMAND_LINE)
|
|
|
|
static void
|
|
grok_platform_data (GApplicationCommandLine *cmdline)
|
|
{
|
|
GVariantIter iter;
|
|
const gchar *key;
|
|
GVariant *value;
|
|
|
|
g_variant_iter_init (&iter, cmdline->priv->platform_data);
|
|
|
|
while (g_variant_iter_loop (&iter, "{&sv}", &key, &value))
|
|
if (strcmp (key, "cwd") == 0)
|
|
{
|
|
if (!cmdline->priv->cwd)
|
|
cmdline->priv->cwd = g_variant_ref (value);
|
|
}
|
|
}
|
|
|
|
static void
|
|
g_application_command_line_real_print_literal (GApplicationCommandLine *cmdline,
|
|
const gchar *message)
|
|
{
|
|
g_print ("%s\n", message);
|
|
}
|
|
|
|
static void
|
|
g_application_command_line_real_printerr_literal (GApplicationCommandLine *cmdline,
|
|
const gchar *message)
|
|
{
|
|
g_printerr ("%s\n", message);
|
|
}
|
|
|
|
static void
|
|
g_application_command_line_get_property (GObject *object, guint prop_id,
|
|
GValue *value, GParamSpec *pspec)
|
|
{
|
|
GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_ARGUMENTS:
|
|
g_value_set_variant (value, cmdline->priv->arguments);
|
|
break;
|
|
|
|
case PROP_PLATFORM_DATA:
|
|
g_value_set_variant (value, cmdline->priv->platform_data);
|
|
break;
|
|
|
|
case PROP_IS_REMOTE:
|
|
g_value_set_boolean (value, IS_REMOTE (cmdline));
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
}
|
|
|
|
static void
|
|
g_application_command_line_set_property (GObject *object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_ARGUMENTS:
|
|
g_assert (cmdline->priv->arguments == NULL);
|
|
cmdline->priv->arguments = g_value_dup_variant (value);
|
|
break;
|
|
|
|
case PROP_PLATFORM_DATA:
|
|
g_assert (cmdline->priv->platform_data == NULL);
|
|
cmdline->priv->platform_data = g_value_dup_variant (value);
|
|
if (cmdline->priv->platform_data != NULL)
|
|
grok_platform_data (cmdline);
|
|
break;
|
|
|
|
default:
|
|
g_assert_not_reached ();
|
|
}
|
|
}
|
|
|
|
static void
|
|
g_application_command_line_finalize (GObject *object)
|
|
{
|
|
GApplicationCommandLine *cmdline = G_APPLICATION_COMMAND_LINE (object);
|
|
|
|
if (cmdline->priv->platform_data)
|
|
g_variant_unref (cmdline->priv->platform_data);
|
|
if (cmdline->priv->arguments)
|
|
g_variant_unref (cmdline->priv->arguments);
|
|
if (cmdline->priv->cwd)
|
|
g_variant_unref (cmdline->priv->cwd);
|
|
|
|
G_OBJECT_CLASS (g_application_command_line_parent_class)
|
|
->finalize (object);
|
|
}
|
|
|
|
static void
|
|
g_application_command_line_init (GApplicationCommandLine *cmdline)
|
|
{
|
|
cmdline->priv =
|
|
G_TYPE_INSTANCE_GET_PRIVATE (cmdline,
|
|
G_TYPE_APPLICATION_COMMAND_LINE,
|
|
GApplicationCommandLinePrivate);
|
|
}
|
|
|
|
static void
|
|
g_application_command_line_class_init (GApplicationCommandLineClass *class)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (class);
|
|
|
|
object_class->get_property = g_application_command_line_get_property;
|
|
object_class->set_property = g_application_command_line_set_property;
|
|
object_class->finalize = g_application_command_line_finalize;
|
|
class->printerr_literal = g_application_command_line_real_printerr_literal;
|
|
class->print_literal = g_application_command_line_real_print_literal;
|
|
|
|
g_object_class_install_property (object_class, PROP_ARGUMENTS,
|
|
g_param_spec_variant ("arguments", "commandline arguments",
|
|
"the commandline that caused this cmdline",
|
|
G_VARIANT_TYPE_BYTESTRING_ARRAY, NULL,
|
|
G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (object_class, PROP_PLATFORM_DATA,
|
|
g_param_spec_variant ("platform-data", "platform data",
|
|
"platform-specific data for the cmdline",
|
|
G_VARIANT_TYPE ("a{sv}"), NULL,
|
|
G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY |
|
|
G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (object_class, PROP_IS_REMOTE,
|
|
g_param_spec_boolean ("is-remote", "is remote",
|
|
"TRUE if this is a remote cmdline", FALSE,
|
|
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_type_class_add_private (class, sizeof (GApplicationCommandLinePrivate));
|
|
}
|
|
|
|
|
|
/**
|
|
* g_application_command_line_get_arguments:
|
|
* @cmdline: a #GApplicationCommandLine
|
|
* @argc: the length of the arguments array, or %NULL
|
|
*
|
|
* Gets the list of arguments that was passed on the command line.
|
|
*
|
|
* The strings in the array may contain non-utf8 data.
|
|
*
|
|
* The return value is %NULL-terminated and should be freed using
|
|
* g_strfreev().
|
|
*
|
|
* Returns: the string array containing the arguments (the argv)
|
|
*
|
|
* Since: 2.28
|
|
**/
|
|
gchar **
|
|
g_application_command_line_get_arguments (GApplicationCommandLine *cmdline,
|
|
int *argc)
|
|
{
|
|
gchar **argv;
|
|
gsize len;
|
|
|
|
g_return_val_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline), NULL);
|
|
|
|
argv = g_variant_dup_bytestring_array (cmdline->priv->arguments, &len);
|
|
|
|
if (argc)
|
|
*argc = len;
|
|
|
|
return argv;
|
|
}
|
|
|
|
/**
|
|
* g_application_command_line_get_cwd:
|
|
* @cmdline: a #GApplicationCommandLine
|
|
*
|
|
* Gets the working directory of the command line invocation. The
|
|
* string may contain non-utf8 data.
|
|
*
|
|
* It is possible that the remote application did not send a working
|
|
* directory, so this may be %NULL.
|
|
*
|
|
* The return value should not be modified or freed and is valid for as
|
|
* long as @cmdline exists.
|
|
*
|
|
* Returns: the current directory, or %NULL
|
|
*
|
|
* Since: 2.28
|
|
**/
|
|
const gchar *
|
|
g_application_command_line_get_cwd (GApplicationCommandLine *cmdline)
|
|
{
|
|
if (cmdline->priv->cwd)
|
|
return g_variant_get_bytestring (cmdline->priv->cwd);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* g_application_command_line_get_is_remote:
|
|
* @cmdline: a #GApplicationCommandLine
|
|
*
|
|
* Determines if @cmdline represents a remote invocation.
|
|
*
|
|
* Returns: %TRUE if the invocation was remote
|
|
*
|
|
* Since: 2.28
|
|
**/
|
|
gboolean
|
|
g_application_command_line_get_is_remote (GApplicationCommandLine *cmdline)
|
|
{
|
|
return IS_REMOTE (cmdline);
|
|
}
|
|
|
|
/**
|
|
* g_application_command_line_print:
|
|
* @cmdline: a #GApplicationCommandLine
|
|
* @format: a printf-style format string
|
|
* @...: arguments, as per @format
|
|
*
|
|
* Formats a message and prints it using the stdout print handler in the
|
|
* invoking process.
|
|
*
|
|
* If @cmdline is a local invocation then this is exactly equivalent to
|
|
* g_print(). If @cmdline is remote then this is equivalent to calling
|
|
* g_print() in the invoking process.
|
|
*
|
|
* Since: 2.28
|
|
**/
|
|
void
|
|
g_application_command_line_print (GApplicationCommandLine *cmdline,
|
|
const gchar *format,
|
|
...)
|
|
{
|
|
gchar *message;
|
|
va_list ap;
|
|
|
|
g_return_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline));
|
|
g_return_if_fail (format != NULL);
|
|
|
|
va_start (ap, format);
|
|
message = g_strdup_vprintf (format, ap);
|
|
va_end (ap);
|
|
|
|
G_APPLICATION_COMMAND_LINE_GET_CLASS (cmdline)
|
|
->print_literal (cmdline, message);
|
|
g_free (message);
|
|
}
|
|
|
|
/**
|
|
* g_application_command_line_printerr:
|
|
* @cmdline: a #GApplicationCommandLine
|
|
* @format: a printf-style format string
|
|
* @...: arguments, as per @format
|
|
*
|
|
* Formats a message and prints it using the stderr print handler in the
|
|
* invoking process.
|
|
*
|
|
* If @cmdline is a local invocation then this is exactly equivalent to
|
|
* g_printerr(). If @cmdline is remote then this is equivalent to
|
|
* calling g_printerr() in the invoking process.
|
|
*
|
|
* Since: 2.28
|
|
**/
|
|
void
|
|
g_application_command_line_printerr (GApplicationCommandLine *cmdline,
|
|
const gchar *format,
|
|
...)
|
|
{
|
|
gchar *message;
|
|
va_list ap;
|
|
|
|
g_return_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline));
|
|
g_return_if_fail (format != NULL);
|
|
|
|
va_start (ap, format);
|
|
message = g_strdup_vprintf (format, ap);
|
|
va_end (ap);
|
|
|
|
G_APPLICATION_COMMAND_LINE_GET_CLASS (cmdline)
|
|
->printerr_literal (cmdline, message);
|
|
g_free (message);
|
|
}
|
|
|
|
/**
|
|
* g_application_command_line_set_exit_status:
|
|
* @cmdline: a #GApplicationCommandLine
|
|
* @exit_status: the exit status
|
|
*
|
|
* Sets the exit status that will be used when the invoking process
|
|
* exits.
|
|
*
|
|
* The return value of the <varname>command-line</varname> signal is
|
|
* passed to this function when the handler returns. This is the usual
|
|
* way of setting the exit status.
|
|
*
|
|
* In the event that you want the remote invocation to continue running
|
|
* and want to decide on the exit status in the future, you can use this
|
|
* call. For the case of a remote invocation, the remote process will
|
|
* typically exit when the last reference is dropped on @cmdline. The
|
|
* exit status of the remote process will be equal to the last value
|
|
* that was set with this function.
|
|
*
|
|
* In the case that the commandline invocation is local, the situation
|
|
* is slightly more complicated. If the commandline invocation results
|
|
* in the mainloop running (ie: because the use-count of the application
|
|
* increased to a non-zero value) then the application is considered to
|
|
* have been 'successful' in a certain sense, and the exit status is
|
|
* always zero. If the application use count is zero, though, the exit
|
|
* status of the local #GApplicationCommandLine is used.
|
|
*
|
|
* Since: 2.28
|
|
**/
|
|
void
|
|
g_application_command_line_set_exit_status (GApplicationCommandLine *cmdline,
|
|
int exit_status)
|
|
{
|
|
g_return_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline));
|
|
|
|
cmdline->priv->exit_status = exit_status;
|
|
}
|
|
|
|
/**
|
|
* g_application_command_line_get_exit_status:
|
|
* @cmdline: a #GApplicationCommandLine
|
|
*
|
|
* Gets the exit status of @cmdline. See
|
|
* g_application_command_line_set_exit_status() for more information.
|
|
*
|
|
* Returns: the exit status
|
|
*
|
|
* Since: 2.28
|
|
**/
|
|
int
|
|
g_application_command_line_get_exit_status (GApplicationCommandLine *cmdline)
|
|
{
|
|
g_return_val_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline), -1);
|
|
|
|
return cmdline->priv->exit_status;
|
|
}
|
|
|
|
/**
|
|
* g_application_command_line_get_platform_data:
|
|
* @cmdline: #GApplicationCommandLine
|
|
*
|
|
* Gets the platform data associated with the invocation of @cmdline.
|
|
*
|
|
* This is a #GVariant dictionary containing information about the
|
|
* context in which the invocation occured. It typically contains
|
|
* information like the current working directory and the startup
|
|
* notification ID.
|
|
*
|
|
* For local invocation, it will be %NULL.
|
|
*
|
|
* Returns: the platform data, or %NULL
|
|
*
|
|
* Since: 2.28
|
|
**/
|
|
GVariant *
|
|
g_application_command_line_get_platform_data (GApplicationCommandLine *cmdline)
|
|
{
|
|
g_return_val_if_fail (G_IS_APPLICATION_COMMAND_LINE (cmdline), NULL);
|
|
|
|
if (cmdline->priv->platform_data)
|
|
return g_variant_ref (cmdline->priv->platform_data);
|
|
else
|
|
return NULL;
|
|
}
|