[gtk/clipboard-test: 4/4] Add more clipboard tests

[Matthias Clasen <matthiasc src gnome org>]

commit f71d2712323482c8e45bd31de1ebc27e5a5886fd
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Apr 26 17:02:50 2021 -0400

    Add more clipboard tests
    
    This tests the simplest cases of copying text,
    files, or colors between processes.

 testsuite/gdk/clipboard-client.c | 190 +++++++++++++++++++++++++++++++++++++++
 testsuite/gdk/clipboard.c        |  88 ++++++++++++++++++
 testsuite/gdk/meson.build        |   7 ++
 3 files changed, 285 insertions(+)
---
diff --git a/testsuite/gdk/clipboard-client.c b/testsuite/gdk/clipboard-client.c
new file mode 100644
index 0000000000..88ae607358
--- /dev/null
+++ b/testsuite/gdk/clipboard-client.c
@@ -0,0 +1,190 @@
+#include <gtk/gtk.h>
+
+static void
+got_text_cb (GObject      *source,
+             GAsyncResult *result,
+             gpointer      data)
+{
+  GdkClipboard *clipboard = GDK_CLIPBOARD (source);
+  GError *error = NULL;
+  char *text;
+
+  text = gdk_clipboard_read_text_finish (clipboard, result, &error);
+  if (text)
+    {
+      g_print ("%s", text);
+      g_free (text);
+    }
+  else
+    {
+      g_print ("ERROR: %s", error->message);
+      g_clear_error (&error);
+    }
+
+  exit (0);
+}
+
+static void
+got_file (GObject      *source,
+          GAsyncResult *result,
+          gpointer      data)
+{
+  GdkClipboard *clipboard = GDK_CLIPBOARD (source);
+  GError *error = NULL;
+  const GValue *value;
+
+  value = gdk_clipboard_read_value_finish (clipboard, result, &error);
+  if (value)
+    {
+      GFile *file = g_value_get_object (value);
+      char *path = g_file_get_path (file);
+      g_print ("%s", path);
+      g_free (path);
+    }
+  else
+    {
+      g_print ("ERROR: %s", error->message);
+      g_clear_error (&error);
+    }
+
+  exit (0);
+}
+
+static void
+got_color (GObject      *source,
+           GAsyncResult *result,
+           gpointer      data)
+{
+  GdkClipboard *clipboard = GDK_CLIPBOARD (source);
+  GError *error = NULL;
+  const GValue *value;
+
+  value = gdk_clipboard_read_value_finish (clipboard, result, &error);
+  if (value)
+    {
+      GdkRGBA *color = g_value_get_boxed (value);
+      char *s = gdk_rgba_to_string (color);
+      g_print ("%s", s);
+      g_free (s);
+    }
+  else
+    {
+      g_print ("ERROR: %s", error->message);
+      g_clear_error (&error);
+    }
+
+  exit (0);
+}
+
+static const char *action;
+static const char *type;
+static const char *value;
+
+static void
+do_it (GObject    *object,
+       GParamSpec *pspec)
+{
+  GdkClipboard *clipboard;
+
+  clipboard = gdk_display_get_clipboard (gdk_display_get_default ());
+
+  if (strcmp (action, "info") == 0)
+    {
+      GdkContentFormats *formats;
+      char *s;
+
+      formats = gdk_clipboard_get_formats (clipboard);
+      s = gdk_content_formats_to_string (formats);
+      g_print ("%s\n", s);
+      g_free (s);
+    }
+  else if (strcmp (action, "set") == 0)
+    {
+      GdkContentFormats *formats;
+      char *s;
+
+      if (strcmp (type, "string") == 0)
+        gdk_clipboard_set_text (clipboard, value);
+      else if (strcmp (type, "file") == 0)
+        {
+          GFile *file;
+
+          file = g_file_new_for_commandline_arg (value);
+          gdk_clipboard_set (clipboard, G_TYPE_FILE, file);
+          g_object_unref (file);
+        }
+      else if (strcmp (type, "color") == 0)
+        {
+          GdkRGBA color;
+
+          gdk_rgba_parse (&color, value);
+          gdk_clipboard_set (clipboard, GDK_TYPE_RGBA, &color);
+        }
+      else
+        g_error ("can't set %s", type);
+
+      formats = gdk_clipboard_get_formats (clipboard);
+      s = gdk_content_formats_to_string (formats);
+      g_print ("%s\n", s);
+      g_free (s);
+    }
+  else if (strcmp (action, "get") == 0)
+    {
+      if (strcmp (type, "string") == 0)
+        gdk_clipboard_read_text_async (clipboard, NULL, got_text_cb, NULL);
+      else if (strcmp (type, "file") == 0)
+        gdk_clipboard_read_value_async (clipboard, G_TYPE_FILE, 0, NULL, got_file, NULL);
+      else if (strcmp (type, "color") == 0)
+        gdk_clipboard_read_value_async (clipboard, GDK_TYPE_RGBA, 0, NULL, got_color, NULL);
+      else
+        g_error ("can't get %s", type);
+    }
+  else
+    g_error ("can only set, get or info");
+}
+
+int
+main (int argc, char *argv[])
+{
+  GtkWidget *window;
+  gboolean done = FALSE;
+
+  if (argc < 2)
+    g_error ("too few arguments");
+
+  action = argv[1];
+
+  if (strcmp (action, "info") == 0)
+    {
+    }
+  else if (strcmp (action, "set") == 0)
+    {
+      if (argc < 4)
+        g_error ("too few arguments for set");
+
+      type = argv[2];
+      value = argv[3];
+    }
+  else if (strcmp (action, "get") == 0)
+    {
+      if (argc < 3)
+        g_error ("too few arguments for get");
+
+      type = argv[2];
+    }
+  else
+    g_error ("can only set or get");
+
+  gtk_init ();
+
+  window = gtk_window_new ();
+
+  gtk_window_present (GTK_WINDOW (window));
+
+  g_signal_connect (window, "notify::is-active", G_CALLBACK (do_it), NULL);
+
+  while (!done)
+    g_main_context_iteration (NULL, TRUE);
+
+  return 0;
+}
diff --git a/testsuite/gdk/clipboard.c b/testsuite/gdk/clipboard.c
index aa3b1055f2..32c671f14b 100644
--- a/testsuite/gdk/clipboard.c
+++ b/testsuite/gdk/clipboard.c
@@ -70,6 +70,91 @@ test_clipboard_basic (void)
   g_value_unset (&value);
 }
 
+static void
+read_upto_done (GObject      *source,
+                GAsyncResult *result,
+                gpointer      data)
+{
+  GDataInputStream *out = G_DATA_INPUT_STREAM (source);
+  gboolean *done = data;
+  char *str;
+  GError *error = NULL;
+
+  str = g_data_input_stream_read_upto_finish (out, result, NULL, &error);
+  g_assert_no_error (error);
+  g_free (str);
+
+  *done = TRUE;
+  g_main_context_wakeup (NULL);
+}
+
+static void
+test_clipboard_roundtrip (const char *type,
+                          const char *value,
+                          const char *result)
+{
+  GSubprocess *source, *target;
+  char *clipboard_client;
+  GError *error = NULL;
+  GDataInputStream *out;
+  gboolean done = FALSE;
+  char *stdout_buf = NULL;
+  char *stderr_buf = NULL;
+
+  clipboard_client = g_test_build_filename (G_TEST_BUILT, "/clipboard-client", NULL);
+
+  source = g_subprocess_new (G_SUBPROCESS_FLAGS_STDOUT_PIPE,
+                             &error,
+                             clipboard_client,
+                             "set", type, value, NULL);
+  g_assert_no_error (error);
+
+  /* Wait until the first child has claimed the clipboard */
+  out = g_data_input_stream_new (g_subprocess_get_stdout_pipe (source));
+  g_data_input_stream_read_upto_async (out, "\n", 1, 0, NULL, read_upto_done, &done);
+
+  while (!done)
+    g_main_context_iteration (NULL, TRUE);
+
+  g_object_unref (out);
+
+  target = g_subprocess_new (G_SUBPROCESS_FLAGS_STDOUT_PIPE,
+                             &error,
+                             clipboard_client,
+                             "get", type, NULL);
+  g_assert_no_error (error);
+
+  g_subprocess_communicate_utf8 (target, NULL, NULL, &stdout_buf, &stderr_buf, &error);
+  g_assert_no_error (error);
+  g_assert_cmpstr (stdout_buf, ==, result);
+  g_assert_null (stderr_buf);
+  g_free (stdout_buf);
+  g_object_unref (target);
+
+  g_subprocess_force_exit (source);
+  g_object_unref (source);
+
+  g_free (clipboard_client);
+}
+
+static void
+test_clipboard_text (void)
+{
+  test_clipboard_roundtrip ("string", "abcdef1230", "abcdef1230");
+}
+
+static void
+test_clipboard_file (void)
+{
+  test_clipboard_roundtrip ("file", "/etc/passwd", "/etc/passwd");
+}
+
+static void
+test_clipboard_color (void)
+{
+  test_clipboard_roundtrip ("color", "red", "rgb(255,0,0)");
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -78,6 +163,9 @@ main (int argc, char *argv[])
   gtk_init ();
 
   g_test_add_func ("/clipboard/basic", test_clipboard_basic);
+  g_test_add_func ("/clipboard/text", test_clipboard_text);
+  g_test_add_func ("/clipboard/file", test_clipboard_file);
+  g_test_add_func ("/clipboard/color", test_clipboard_color);
 
   return g_test_run ();
 }
diff --git a/testsuite/gdk/meson.build b/testsuite/gdk/meson.build
index 5216d7a518..edc290ff7a 100644
--- a/testsuite/gdk/meson.build
+++ b/testsuite/gdk/meson.build
@@ -1,3 +1,10 @@
+clipboard_client = executable('clipboard-client',
+                              sources: ['clipboard-client.c'],
+                              include_directories: [confinc],
+                              c_args: common_cflags,
+                              dependencies: [ libgtk_dep ],
+                              install: false)
+
 testexecdir = join_paths(installed_test_bindir, 'gdk')
 testdatadir = join_paths(installed_test_datadir, 'gdk')