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888e5257e0
GdkContentProvider is the object that represents local data in the clipboard. This patch only introduces the object and adds the clipboard properties, it does not yet provide a way for the actual implementations to access it. The only access that is implemented is the local shortcut GValue access.
253 lines
7.6 KiB
C
253 lines
7.6 KiB
C
/*
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* Copyright (C) 2011 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <gtk/gtk.h>
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static void
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clipboard_changed_cb (GdkClipboard *clipboard,
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GtkWidget *stack)
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{
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GtkWidget *child;
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gtk_stack_set_visible_child_name (GTK_STACK (stack), "info");
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child = gtk_stack_get_child_by_name (GTK_STACK (stack), "image");
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gtk_image_clear (GTK_IMAGE (child));
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child = gtk_stack_get_child_by_name (GTK_STACK (stack), "text");
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gtk_label_set_text (GTK_LABEL (child), "");
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}
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static void
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pixbuf_loaded_cb (GObject *clipboard,
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GAsyncResult *res,
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gpointer data)
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{
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GError *error = NULL;
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GdkPixbuf *pixbuf;
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pixbuf = gdk_clipboard_read_pixbuf_finish (GDK_CLIPBOARD (clipboard), res, &error);
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if (pixbuf == NULL)
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{
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g_print ("%s\n", error->message);
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g_error_free (error);
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return;
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}
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gtk_image_set_from_pixbuf (data, pixbuf);
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g_object_unref (pixbuf);
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}
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static void
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text_loaded_cb (GObject *clipboard,
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GAsyncResult *res,
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gpointer data)
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{
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GError *error = NULL;
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char *text;
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text = gdk_clipboard_read_text_finish (GDK_CLIPBOARD (clipboard), res, &error);
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if (text == NULL)
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{
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g_print ("%s\n", error->message);
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g_error_free (error);
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return;
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}
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gtk_label_set_text (data, text);
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g_free (text);
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}
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static void
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visible_child_changed_cb (GtkWidget *stack,
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GParamSpec *pspec,
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GdkClipboard *clipboard)
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{
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const char *visible_child = gtk_stack_get_visible_child_name (GTK_STACK (stack));
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if (visible_child == NULL)
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{
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/* nothing to do here but avoiding crashes in g_str_equal() */
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}
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else if (g_str_equal (visible_child, "image"))
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{
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GtkWidget *image = gtk_stack_get_child_by_name (GTK_STACK (stack), "image");
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gdk_clipboard_read_pixbuf_async (clipboard,
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NULL,
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pixbuf_loaded_cb,
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image);
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}
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else if (g_str_equal (visible_child, "text"))
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{
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GtkWidget *label = gtk_stack_get_child_by_name (GTK_STACK (stack), "text");
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gdk_clipboard_read_text_async (clipboard,
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NULL,
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text_loaded_cb,
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label);
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}
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}
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static void
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clipboard_formats_change_cb (GdkClipboard *clipboard,
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GParamSpec *pspec,
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GtkWidget *label)
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{
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char *s;
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s = gdk_content_formats_to_string (gdk_clipboard_get_formats (clipboard));
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gtk_label_set_text (GTK_LABEL (label), s);
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g_free (s);
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}
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static GtkWidget *
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get_contents_widget (GdkClipboard *clipboard)
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{
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GtkWidget *stack, *child;
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stack = gtk_stack_new ();
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gtk_widget_set_hexpand (stack, TRUE);
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gtk_widget_set_vexpand (stack, TRUE);
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g_signal_connect (stack, "notify::visible-child", G_CALLBACK (visible_child_changed_cb), clipboard);
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g_signal_connect (clipboard, "changed", G_CALLBACK (clipboard_changed_cb), stack);
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child = gtk_label_new (NULL);
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gtk_label_set_line_wrap (GTK_LABEL (child), TRUE);
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g_signal_connect (clipboard, "notify::formats", G_CALLBACK (clipboard_formats_change_cb), child);
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clipboard_formats_change_cb (clipboard, NULL, child);
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gtk_stack_add_titled (GTK_STACK (stack), child, "info", "Info");
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child = gtk_image_new ();
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gtk_stack_add_titled (GTK_STACK (stack), child, "image", "Image");
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child = gtk_label_new (NULL);
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gtk_label_set_line_wrap (GTK_LABEL (child), TRUE);
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gtk_stack_add_titled (GTK_STACK (stack), child, "text", "Text");
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return stack;
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}
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static void
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provider_button_clicked_cb (GtkWidget *button,
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GdkClipboard *clipboard)
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{
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gdk_clipboard_set_content (clipboard,
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g_object_get_data (G_OBJECT (button), "provider"));
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}
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static void
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add_provider_button (GtkWidget *box,
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GdkContentProvider *provider,
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GdkClipboard *clipboard,
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const char *name)
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{
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GtkWidget *button;
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button = gtk_button_new_with_label (name);
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g_signal_connect (button, "clicked", G_CALLBACK (provider_button_clicked_cb), clipboard);
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g_object_set_data_full (G_OBJECT (button), "provider", provider, g_object_unref);
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gtk_container_add (GTK_CONTAINER (box), button);
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}
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static GtkWidget *
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get_button_list (GdkClipboard *clipboard)
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{
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GtkWidget *box;
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GValue value = G_VALUE_INIT;
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box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
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gtk_container_add (GTK_CONTAINER (box), gtk_label_new ("Set Clipboard:"));
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g_value_init (&value, GDK_TYPE_PIXBUF);
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g_value_take_object (&value, gtk_icon_theme_load_icon (gtk_icon_theme_get_default (),
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"utilities-terminal",
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48, 0, NULL));
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add_provider_button (box,
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gdk_content_provider_new_for_value (&value),
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clipboard,
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"Icon");
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g_value_unset (&value);
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g_value_init (&value, G_TYPE_STRING);
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g_value_set_string (&value, "Hello Clipboard ☺");
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add_provider_button (box,
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gdk_content_provider_new_for_value (&value),
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clipboard,
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"Text");
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g_value_unset (&value);
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return box;
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}
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static GtkWidget *
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get_clipboard_widget (GdkClipboard *clipboard,
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const char *name)
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{
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GtkWidget *vbox, *hbox, *stack, *switcher;
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hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
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gtk_container_add (GTK_CONTAINER (hbox), vbox);
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gtk_container_add (GTK_CONTAINER (vbox), gtk_label_new (name));
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switcher = gtk_stack_switcher_new ();
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gtk_container_add (GTK_CONTAINER (vbox), switcher);
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stack = get_contents_widget (clipboard);
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gtk_container_add (GTK_CONTAINER (vbox), stack);
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gtk_stack_switcher_set_stack (GTK_STACK_SWITCHER (switcher), GTK_STACK (stack));
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gtk_container_add (GTK_CONTAINER (hbox), get_button_list (clipboard));
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return hbox;
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}
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static GtkWidget *
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get_window_contents (GdkDisplay *display)
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{
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GtkWidget *box;
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_box_set_homogeneous (GTK_BOX (box), TRUE);
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gtk_container_add (GTK_CONTAINER (box),
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get_clipboard_widget (gdk_display_get_clipboard (display),
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"Clipboard"));
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gtk_container_add (GTK_CONTAINER (box),
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get_clipboard_widget (gdk_display_get_primary_clipboard (display),
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"Primary Clipboard"));
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return box;
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}
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int
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main (int argc, char **argv)
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{
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GtkWidget *window;
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gtk_init ();
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
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gtk_container_add (GTK_CONTAINER (window), get_window_contents (gtk_widget_get_display (window)));
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gtk_widget_show (window);
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gtk_main ();
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return 0;
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}
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