gtk/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 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
pixbuf_loaded_cb (GObject *clipboard,
GAsyncResult *res,
gpointer data)
{
GError *error = NULL;
GdkPixbuf *pixbuf;
pixbuf = gdk_clipboard_read_pixbuf_finish (GDK_CLIPBOARD (clipboard), res, &error);
if (pixbuf == NULL)
{
g_print ("%s\n", error->message);
g_error_free (error);
return;
}
gtk_image_set_from_pixbuf (data, pixbuf);
g_object_unref (pixbuf);
}
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_pixbuf_async (clipboard,
NULL,
pixbuf_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);
}
}
static void
clipboard_formats_change_cb (GdkClipboard *clipboard,
GParamSpec *pspec,
GtkWidget *label)
{
char *s;
s = gdk_content_formats_to_string (gdk_clipboard_get_formats (clipboard));
gtk_label_set_text (GTK_LABEL (label), s);
g_free (s);
}
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 (clipboard, "changed", G_CALLBACK (clipboard_changed_cb), stack);
child = gtk_label_new (NULL);
gtk_label_set_line_wrap (GTK_LABEL (child), TRUE);
g_signal_connect (clipboard, "notify::formats", G_CALLBACK (clipboard_formats_change_cb), child);
clipboard_formats_change_cb (clipboard, NULL, child);
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_line_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)
{
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;
GValue value = G_VALUE_INIT;
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (box), gtk_label_new ("Set Clipboard:"));
add_provider_button (box,
NULL,
clipboard,
"Empty");
g_value_init (&value, GDK_TYPE_PIXBUF);
g_value_take_object (&value, gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
"utilities-terminal",
48, 0, NULL));
add_provider_button (box,
gdk_content_provider_new_for_value (&value),
clipboard,
"GdkPixbuf");
g_value_unset (&value);
g_value_init (&value, G_TYPE_STRING);
g_value_set_string (&value, "Hello Clipboard ☺");
add_provider_button (box,
gdk_content_provider_new_for_value (&value),
clipboard,
"gchararry");
g_value_unset (&value);
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");
return box;
}
static GtkWidget *
get_clipboard_widget (GdkClipboard *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));
return hbox;
}
static GtkWidget *
get_window_contents (GdkDisplay *display)
{
GtkWidget *box;
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_box_set_homogeneous (GTK_BOX (box), TRUE);
gtk_container_add (GTK_CONTAINER (box),
get_clipboard_widget (gdk_display_get_clipboard (display),
"Clipboard"));
gtk_container_add (GTK_CONTAINER (box),
get_clipboard_widget (gdk_display_get_primary_clipboard (display),
"Primary Clipboard"));
return box;
}
int
main (int argc, char **argv)
{
GtkWidget *window;
gtk_init ();
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
gtk_container_add (GTK_CONTAINER (window), get_window_contents (gtk_widget_get_display (window)));
gtk_widget_show (window);
gtk_main ();
return 0;
}