gtk2/tests/testclipboard2.c

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/*
* Copyright (C) 2011 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <gtk/gtk.h>
static GdkTexture *
render_paintable_to_texture (GdkPaintable *paintable)
{
GtkSnapshot *snapshot;
GskRenderNode *node;
int width, height;
cairo_surface_t *surface;
cairo_t *cr;
GdkTexture *texture;
GBytes *bytes;
width = gdk_paintable_get_intrinsic_width (paintable);
height = gdk_paintable_get_intrinsic_height (paintable);
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
snapshot = gtk_snapshot_new ();
gdk_paintable_snapshot (paintable, snapshot, width, height);
node = gtk_snapshot_free_to_node (snapshot);
cr = cairo_create (surface);
gsk_render_node_draw (node, cr);
cairo_destroy (cr);
gsk_render_node_unref (node);
bytes = g_bytes_new_with_free_func (cairo_image_surface_get_data (surface),
cairo_image_surface_get_height (surface)
* cairo_image_surface_get_stride (surface),
(GDestroyNotify) cairo_surface_destroy,
cairo_surface_reference (surface));
texture = gdk_memory_texture_new (cairo_image_surface_get_width (surface),
cairo_image_surface_get_height (surface),
GDK_MEMORY_DEFAULT,
bytes,
cairo_image_surface_get_stride (surface));
g_bytes_unref (bytes);
cairo_surface_destroy (surface);
return texture;
}
static void
clipboard_changed_cb (GdkClipboard *clipboard,
GtkWidget *stack)
{
GtkWidget *child;
gtk_stack_set_visible_child_name (GTK_STACK (stack), "info");
child = gtk_stack_get_child_by_name (GTK_STACK (stack), "image");
gtk_image_clear (GTK_IMAGE (child));
child = gtk_stack_get_child_by_name (GTK_STACK (stack), "text");
gtk_label_set_text (GTK_LABEL (child), "");
}
static void
texture_loaded_cb (GObject *clipboard,
GAsyncResult *res,
gpointer data)
{
GError *error = NULL;
GdkTexture *texture;
texture = gdk_clipboard_read_texture_finish (GDK_CLIPBOARD (clipboard), res, &error);
if (texture == NULL)
{
g_print ("%s\n", error->message);
g_error_free (error);
return;
}
gtk_image_set_from_paintable (data, GDK_PAINTABLE (texture));
g_object_unref (texture);
}
static void
text_loaded_cb (GObject *clipboard,
GAsyncResult *res,
gpointer data)
{
GError *error = NULL;
char *text;
text = gdk_clipboard_read_text_finish (GDK_CLIPBOARD (clipboard), res, &error);
if (text == NULL)
{
g_print ("%s\n", error->message);
g_error_free (error);
return;
}
gtk_label_set_text (data, text);
g_free (text);
}
static void
visible_child_changed_cb (GtkWidget *stack,
GParamSpec *pspec,
GdkClipboard *clipboard)
{
const char *visible_child = gtk_stack_get_visible_child_name (GTK_STACK (stack));
if (visible_child == NULL)
{
/* nothing to do here but avoiding crashes in g_str_equal() */
}
else if (g_str_equal (visible_child, "image"))
{
GtkWidget *image = gtk_stack_get_child_by_name (GTK_STACK (stack), "image");
gdk_clipboard_read_texture_async (clipboard,
NULL,
texture_loaded_cb,
image);
}
else if (g_str_equal (visible_child, "text"))
{
GtkWidget *label = gtk_stack_get_child_by_name (GTK_STACK (stack), "text");
gdk_clipboard_read_text_async (clipboard,
NULL,
text_loaded_cb,
label);
}
}
#ifdef G_OS_UNIX /* portal usage supported on *nix only */
static GSList *
get_file_list (const char *dir)
{
GFileEnumerator *enumerator;
GFile *file;
GFileInfo *info;
GSList *list = NULL;
file = g_file_new_for_path (dir);
enumerator = g_file_enumerate_children (file, "standard::name,standard::type", 0, NULL, NULL);
g_object_unref (file);
if (enumerator == NULL)
return NULL;
while (g_file_enumerator_iterate (enumerator, &info, &file, NULL, NULL) && file != NULL)
{
/* the portal can't handle directories */
if (g_file_info_get_file_type (info) != G_FILE_TYPE_REGULAR)
continue;
list = g_slist_prepend (list, g_object_ref (file));
}
return g_slist_reverse (list);
}
#else /* G_OS_UNIX -- original non-portal-enabled code */
static GList *
get_file_list (const char *dir)
{
GFileEnumerator *enumerator;
GFile *file;
GList *list = NULL;
file = g_file_new_for_path (dir);
enumerator = g_file_enumerate_children (file, "standard::name", 0, NULL, NULL);
g_object_unref (file);
if (enumerator == NULL)
return NULL;
while (g_file_enumerator_iterate (enumerator, NULL, &file, NULL, NULL) && file != NULL)
list = g_list_prepend (list, g_object_ref (file));
return g_list_reverse (list);
}
#endif /* !G_OS_UNIX */
static void
format_list_add_row (GtkWidget *list,
const char *format_name,
GdkContentFormats *formats)
{
GtkWidget *box;
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_container_add (GTK_CONTAINER (box), gtk_label_new (format_name));
gdk_content_formats_unref (formats);
gtk_container_add (GTK_CONTAINER (list), box);
}
static void
clipboard_formats_change_cb (GdkClipboard *clipboard,
GParamSpec *pspec,
GtkWidget *list)
{
GdkContentFormats *formats;
GtkWidget *row;
const char * const *mime_types;
const GType *gtypes;
gsize i, n;
while ((row = GTK_WIDGET (gtk_list_box_get_row_at_index (GTK_LIST_BOX (list), 0))))
gtk_container_remove (GTK_CONTAINER (list), row);
formats = gdk_clipboard_get_formats (clipboard);
gtypes = gdk_content_formats_get_gtypes (formats, &n);
for (i = 0; i < n; i++)
{
format_list_add_row (list,
g_type_name (gtypes[i]),
gdk_content_formats_new_for_gtype (gtypes[i]));
}
mime_types = gdk_content_formats_get_mime_types (formats, &n);
for (i = 0; i < n; i++)
{
format_list_add_row (list,
mime_types[i],
gdk_content_formats_new ((const char *[2]) { mime_types[i], NULL }, 1));
}
}
static GtkWidget *
get_formats_list (GdkClipboard *clipboard)
{
GtkWidget *sw, *list;
sw = gtk_scrolled_window_new (NULL, NULL);
list = gtk_list_box_new ();
g_signal_connect_object (clipboard, "notify::formats", G_CALLBACK (clipboard_formats_change_cb), list, 0);
clipboard_formats_change_cb (clipboard, NULL, list);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), list);
return sw;
}
static GtkWidget *
get_contents_widget (GdkClipboard *clipboard)
{
GtkWidget *stack, *child;
stack = gtk_stack_new ();
gtk_widget_set_hexpand (stack, TRUE);
gtk_widget_set_vexpand (stack, TRUE);
g_signal_connect (stack, "notify::visible-child", G_CALLBACK (visible_child_changed_cb), clipboard);
g_signal_connect_object (clipboard, "changed", G_CALLBACK (clipboard_changed_cb), stack, 0);
child = get_formats_list (clipboard);
gtk_stack_add_titled (GTK_STACK (stack), child, "info", "Info");
child = gtk_image_new ();
gtk_stack_add_titled (GTK_STACK (stack), child, "image", "Image");
child = gtk_label_new (NULL);
gtk_label_set_wrap (GTK_LABEL (child), TRUE);
gtk_stack_add_titled (GTK_STACK (stack), child, "text", "Text");
return stack;
}
static void
provider_button_clicked_cb (GtkWidget *button,
GdkClipboard *clipboard)
{
gdk_clipboard_set_content (clipboard,
g_object_get_data (G_OBJECT (button), "provider"));
}
static void
add_provider_button (GtkWidget *box,
GdkContentProvider *provider,
GdkClipboard *clipboard,
const char *name)
{
GtkWidget *button;
button = gtk_button_new_with_label (name);
g_signal_connect (button, "clicked", G_CALLBACK (provider_button_clicked_cb), clipboard);
if (provider)
g_object_set_data_full (G_OBJECT (button), "provider", provider, g_object_unref);
gtk_container_add (GTK_CONTAINER (box), button);
}
static GtkWidget *
get_button_list (GdkClipboard *clipboard,
const char *info)
{
static const guchar invalid_utf8[] = { 'L', 'i', 'b', 'e', 'r', 't', 0xe9, ',', ' ',
0xc9, 'g', 'a', 'l', 'i', 't', 0xe9, ',', ' ',
'F', 'r', 'a', 't', 'e', 'r', 'n', 'i', 't', 0xe9, 0 };
GtkWidget *box;
2020-02-04 16:19:22 +00:00
GtkIconPaintable *icon;
GdkTexture *texture;
GValue value = G_VALUE_INIT;
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (box), gtk_label_new (info));
add_provider_button (box,
NULL,
clipboard,
"Empty");
g_value_init (&value, GDK_TYPE_PIXBUF);
icon = gtk_icon_theme_lookup_icon (gtk_icon_theme_get_for_display (gdk_clipboard_get_display (clipboard)),
"utilities-terminal",
NULL,
48, 1,
gtk_widget_get_direction (box),
0);
texture = render_paintable_to_texture (GDK_PAINTABLE (icon));
g_value_take_object (&value, gdk_pixbuf_get_from_texture (texture));
g_object_unref (texture);
g_object_unref (icon);
add_provider_button (box,
gdk_content_provider_new_for_value (&value),
clipboard,
"GdkPixbuf");
g_value_unset (&value);
add_provider_button (box,
gdk_content_provider_new_typed (G_TYPE_STRING, "Hello Clipboard ☺"),
clipboard,
"gchararry");
add_provider_button (box,
gdk_content_provider_new_for_bytes ("text/plain;charset=utf-8",
g_bytes_new_static ("𝕳𝖊𝖑𝖑𝖔 𝖀𝖓𝖎𝖈𝖔𝖉𝖊",
strlen ("𝕳𝖊𝖑𝖑𝖔 𝖀𝖓𝖎𝖈𝖔𝖉𝖊") + 1)),
clipboard,
"text/plain");
add_provider_button (box,
gdk_content_provider_new_for_bytes ("text/plain;charset=utf-8",
g_bytes_new_static (invalid_utf8, sizeof(invalid_utf8))),
clipboard,
"Invalid UTF-8");
g_value_init (&value, G_TYPE_FILE);
g_value_take_object (&value, g_file_new_for_path (g_get_home_dir ()));
add_provider_button (box,
gdk_content_provider_new_for_value (&value),
clipboard,
"home directory");
g_value_unset (&value);
g_value_init (&value, GDK_TYPE_FILE_LIST);
g_value_take_boxed (&value, get_file_list (g_get_home_dir ()));
add_provider_button (box,
gdk_content_provider_new_for_value (&value),
clipboard,
"files in home");
return box;
}
static GtkWidget *
get_clipboard_widget (GdkClipboard *clipboard,
GdkClipboard *alt_clipboard,
const char *name)
{
GtkWidget *vbox, *hbox, *stack, *switcher;
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (hbox), vbox);
gtk_container_add (GTK_CONTAINER (vbox), gtk_label_new (name));
switcher = gtk_stack_switcher_new ();
gtk_container_add (GTK_CONTAINER (vbox), switcher);
stack = get_contents_widget (clipboard);
gtk_container_add (GTK_CONTAINER (vbox), stack);
gtk_stack_switcher_set_stack (GTK_STACK_SWITCHER (switcher), GTK_STACK (stack));
gtk_container_add (GTK_CONTAINER (hbox), get_button_list (clipboard, "Set Locally:"));
if (clipboard != alt_clipboard)
gtk_container_add (GTK_CONTAINER (hbox), get_button_list (alt_clipboard, "Set Remotely:"));
return hbox;
}
static GtkWidget *
get_window_contents (GdkDisplay *display,
GdkDisplay *alt_display)
{
GtkWidget *box;
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_set_homogeneous (GTK_BOX (box), TRUE);
gtk_container_add (GTK_CONTAINER (box),
get_clipboard_widget (gdk_display_get_clipboard (display),
gdk_display_get_clipboard (alt_display),
"Clipboard"));
gtk_container_add (GTK_CONTAINER (box),
get_clipboard_widget (gdk_display_get_primary_clipboard (display),
gdk_display_get_primary_clipboard (alt_display),
"Primary Clipboard"));
return box;
}
static void
quit_cb (GtkWidget *widget,
gpointer data)
{
gboolean *done = data;
*done = TRUE;
g_main_context_wakeup (NULL);
}
int
main (int argc, char **argv)
{
GtkWidget *window;
GdkDisplay *alt_display;
gboolean done = FALSE;
gtk_init ();
alt_display = gdk_display_open (NULL);
if (alt_display == NULL)
alt_display = gdk_display_get_default ();
window = gtk_window_new ();
g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
gtk_window_set_child (GTK_WINDOW (window),
get_window_contents (gtk_widget_get_display (window),
alt_display));
gtk_widget_show (window);
while (!done)
g_main_context_iteration (NULL, TRUE);
return 0;
}