gtk2/tests/testclipboard2.c
Matthias Clasen 67759d4c3e Use gtk_scrolled_window_set_child throughout
Replace all uses of gtk_container_add on popovers
by gtk_scrolled_window_set_child.
2020-05-04 22:53:07 -04:00

462 lines
14 KiB
C
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/*
* 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;
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_container_add (GTK_CONTAINER (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;
}