From aa3a853c9d06d0321e8924cbfbc42c8411f571f5 Mon Sep 17 00:00:00 2001 From: monsta Date: Wed, 9 Sep 2015 12:35:05 +0300 Subject: mate-screenshot: move stuff to data/ and src/ subdirs --- mate-screenshot/screenshot-save.c | 285 -------------------------------------- 1 file changed, 285 deletions(-) delete mode 100644 mate-screenshot/screenshot-save.c (limited to 'mate-screenshot/screenshot-save.c') diff --git a/mate-screenshot/screenshot-save.c b/mate-screenshot/screenshot-save.c deleted file mode 100644 index 5b870eec..00000000 --- a/mate-screenshot/screenshot-save.c +++ /dev/null @@ -1,285 +0,0 @@ -/* screenshot-save.c - image saving functions for MATE Screenshot - * - * Copyright (C) 2001-2006 Jonathan Blandford - * - * 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., 51 Franklin St, Fifth Floor, - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "screenshot-save.h" - -static char *parent_dir = NULL; -static char *tmp_filename = NULL; - -static SaveFunction save_callback = NULL; -static gpointer save_user_data = NULL; - -/* Strategy for saving: - * - * We keep another process around to handle saving the image. This is - * done for two reasons. One, the saving takes a non-zero amount of - * time (about a quarter of a second on my box.) This will make it - * more interactive. The second reason is to make the child - * responsible for cleaning up the temp dir. If the parent process is - * killed or segfaults, the child process can clean up the temp dir. - */ -static void -clean_up_temporary_dir (gboolean gui_on_error) -{ - char *message; - gboolean error_occurred = FALSE; - if (g_file_test (tmp_filename, G_FILE_TEST_EXISTS)) - error_occurred = unlink (tmp_filename); - if (g_file_test (parent_dir, G_FILE_TEST_EXISTS)) - error_occurred = rmdir (parent_dir) || error_occurred; - - if (error_occurred) - { - message = g_strdup_printf (_("Unable to clear the temporary folder:\n%s"), - tmp_filename); - if (gui_on_error) - { - GtkWidget *dialog; - - dialog = gtk_message_dialog_new (NULL, 0, - GTK_MESSAGE_ERROR, - GTK_BUTTONS_OK, - "%s", message); - gtk_dialog_run (GTK_DIALOG (dialog)); - gtk_widget_destroy (dialog); - } - else - { - g_warning ("%s", message); - } - g_free (message); - } - g_free (tmp_filename); - g_free (parent_dir); -} - -static void -child_done_notification (GPid pid, - gint status, - gpointer data) -{ - /* This should never be called. */ - - /* We expect the child to die after the parent. If the child dies - * than it either segfaulted, or was randomly killed. In either - * case, we can't reasonably continue. */ - GtkWidget *dialog; - - dialog = gtk_message_dialog_new (NULL, 0, - GTK_MESSAGE_ERROR, - GTK_BUTTONS_OK, - _("The child save process unexpectedly exited. We are unable to write the screenshot to disk.")); - gtk_dialog_run (GTK_DIALOG (dialog)); - gtk_widget_destroy (dialog); - - clean_up_temporary_dir (TRUE); - - exit (1); -} - -static gboolean -read_pipe_from_child (GIOChannel *source, - GIOCondition condition, - gpointer data) -{ - if (condition & G_IO_IN) - { - gchar *message = NULL; - gchar *error_message = NULL; - GtkWidget *dialog; - GIOStatus status; - - status = g_io_channel_read_line (source, &error_message, NULL, NULL, NULL); - - if (status == G_IO_STATUS_NORMAL) - { - message = g_strdup_printf ("Unable to save the screenshot to disk:\n\n%s", error_message); - dialog = gtk_message_dialog_new (NULL, 0, - GTK_MESSAGE_ERROR, - GTK_BUTTONS_OK, - "%s", message); - gtk_dialog_run (GTK_DIALOG (dialog)); - gtk_widget_destroy (dialog); - exit (1); - } - } - - (*save_callback) (save_user_data); - - return FALSE; -} - -static char * -make_temp_directory (void) -{ - gint result, i; - gchar *dir_name; - - i = 0; - do - { - gchar *tmp_dir = g_strdup_printf ("mate-screenshot.%u.%d", - (unsigned int) getpid (), - i++); - - dir_name = g_build_filename (g_get_tmp_dir (), - tmp_dir, - NULL); - g_free (tmp_dir); - - result = g_mkdir_with_parents (dir_name, 0777); - if (result < 0) - { - g_free (dir_name); - - if (errno != EEXIST) - return NULL; - else - continue; - } - else - return dir_name; - } - while (TRUE); -} - -static void -signal_handler (int sig) -{ - clean_up_temporary_dir (FALSE); - - signal (sig, SIG_DFL); - kill (getpid (), sig); -} - -void -screenshot_save_start (GdkPixbuf *pixbuf, - SaveFunction callback, - gpointer user_data) -{ - GPid pid; - int parent_exit_notification[2]; - int pipe_from_child[2]; - - pipe (parent_exit_notification); - pipe (pipe_from_child); - - parent_dir = make_temp_directory (); - if (parent_dir == NULL) - return; - - tmp_filename = g_build_filename (parent_dir, - _("Screenshot.png"), - NULL); - save_callback = callback; - save_user_data = user_data; - - pid = fork (); - if (pid == 0) - { - GError *error = NULL; - char c; - - signal (SIGINT, signal_handler); - signal (SIGTERM, signal_handler); - - close (parent_exit_notification [1]); - close (pipe_from_child [0]); - - if (! gdk_pixbuf_save (pixbuf, tmp_filename, - "png", &error, - "tEXt::Software", "mate-screenshot", - NULL)) - { - if (error && error->message) - write (pipe_from_child[1], - error->message, - strlen (error->message)); - else -#define ERROR_MESSAGE _("Unknown error saving screenshot to disk") - write (pipe_from_child[1], - ERROR_MESSAGE, - strlen (ERROR_MESSAGE)); - } - /* By closing the pipe, we let the main process know that we're - * done saving it. */ - close (pipe_from_child[1]); - read (parent_exit_notification[0], &c, 1); - - clean_up_temporary_dir (FALSE); - _exit (0); - } - else if (pid > 0) - { - GIOChannel *channel; - - close (parent_exit_notification[0]); - close (pipe_from_child[1]); - - channel = g_io_channel_unix_new (pipe_from_child[0]); - g_io_add_watch (channel, - G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL, - read_pipe_from_child, - NULL); - g_io_channel_unref (channel); - g_child_watch_add (pid, child_done_notification, NULL); - } - else - /* George awesomely wrote code originally to handle the - * could-not-fork case synchronously. I'm not copying it, as I'm - * guessing that the system is pretty hosed if that's the case. - * However, he gets major kudos for trying. (-: - */ - g_assert_not_reached (); -} - -const char * -screenshot_save_get_filename (void) -{ - return tmp_filename; -} - -gchar * -screenshot_sanitize_filename (const char *filename) -{ - char *retval, *p; - - g_assert (filename); - g_assert (g_utf8_validate (filename, -1, NULL)); - - retval = g_uri_escape_string (filename, - "/", - TRUE); - - for (p = retval; *p != '\000'; p = g_utf8_next_char (p)) - { - if (*p == G_DIR_SEPARATOR) - *p = '-'; - } - - return retval; -} -- cgit v1.2.1