ui/gtk: add clipboard support
This patch adds clipboard support to the qemu gtk ui. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 20210519053940.1888907-1-kraxel@redhat.com Message-Id: <20210519053940.1888907-10-kraxel@redhat.com>
This commit is contained in:
Gerd Hoffmann
parent
5f692f5784
commit
d11ebe2ca2
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@ -18,6 +18,7 @@
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#include <gdk/gdkwayland.h>
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#endif
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#include "ui/clipboard.h"
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#include "ui/console.h"
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#include "ui/kbd-state.h"
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#if defined(CONFIG_OPENGL)
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@ -137,6 +138,12 @@ struct GtkDisplayState {
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bool external_pause_update;
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QemuClipboardPeer cbpeer;
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QemuClipboardInfo *cbinfo[QEMU_CLIPBOARD_SELECTION__COUNT];
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uint32_t cbpending[QEMU_CLIPBOARD_SELECTION__COUNT];
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GtkClipboard *gtkcb[QEMU_CLIPBOARD_SELECTION__COUNT];
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bool cbowner[QEMU_CLIPBOARD_SELECTION__COUNT];
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DisplayOptions *opts;
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};
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@ -207,4 +214,7 @@ void gtk_gl_area_init(void);
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int gd_gl_area_make_current(DisplayChangeListener *dcl,
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QEMUGLContext ctx);
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/* gtk-clipboard.c */
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void gd_clipboard_init(GtkDisplayState *gd);
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#endif /* UI_GTK_H */
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@ -0,0 +1,192 @@
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/*
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* GTK UI -- clipboard support
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*
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* Copyright (C) 2021 Gerd Hoffmann <kraxel@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qemu/main-loop.h"
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#include "ui/gtk.h"
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static QemuClipboardSelection gd_find_selection(GtkDisplayState *gd,
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GtkClipboard *clipboard)
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{
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QemuClipboardSelection s;
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for (s = 0; s < QEMU_CLIPBOARD_SELECTION__COUNT; s++) {
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if (gd->gtkcb[s] == clipboard) {
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return s;
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}
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}
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return QEMU_CLIPBOARD_SELECTION_CLIPBOARD;
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}
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static void gd_clipboard_get_data(GtkClipboard *clipboard,
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GtkSelectionData *selection_data,
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guint selection_info,
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gpointer data)
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{
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GtkDisplayState *gd = data;
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QemuClipboardSelection s = gd_find_selection(gd, clipboard);
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QemuClipboardType type = QEMU_CLIPBOARD_TYPE_TEXT;
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QemuClipboardInfo *info = qemu_clipboard_info_ref(gd->cbinfo[s]);
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qemu_clipboard_request(info, type);
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while (info == gd->cbinfo[s] &&
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info->types[type].available &&
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info->types[type].data == NULL) {
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main_loop_wait(false);
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}
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if (info == gd->cbinfo[s] && gd->cbowner[s]) {
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gtk_selection_data_set_text(selection_data,
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info->types[type].data,
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info->types[type].size);
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} else {
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/* clipboard owner changed while waiting for the data */
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}
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qemu_clipboard_info_unref(info);
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}
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static void gd_clipboard_clear(GtkClipboard *clipboard,
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gpointer data)
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{
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GtkDisplayState *gd = data;
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QemuClipboardSelection s = gd_find_selection(gd, clipboard);
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gd->cbowner[s] = false;
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}
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static void gd_clipboard_notify(Notifier *notifier, void *data)
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{
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GtkDisplayState *gd = container_of(notifier, GtkDisplayState, cbpeer.update);
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QemuClipboardInfo *info = data;
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QemuClipboardSelection s = info->selection;
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bool self_update = info->owner == &gd->cbpeer;
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if (info != gd->cbinfo[s]) {
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qemu_clipboard_info_unref(gd->cbinfo[s]);
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gd->cbinfo[s] = qemu_clipboard_info_ref(info);
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gd->cbpending[s] = 0;
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if (!self_update) {
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GtkTargetList *list;
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GtkTargetEntry *targets;
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gint n_targets;
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list = gtk_target_list_new(NULL, 0);
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if (info->types[QEMU_CLIPBOARD_TYPE_TEXT].available) {
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gtk_target_list_add_text_targets(list, 0);
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}
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targets = gtk_target_table_new_from_list(list, &n_targets);
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gtk_clipboard_clear(gd->gtkcb[s]);
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gd->cbowner[s] = true;
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gtk_clipboard_set_with_data(gd->gtkcb[s],
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targets, n_targets,
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gd_clipboard_get_data,
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gd_clipboard_clear,
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gd);
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gtk_target_table_free(targets, n_targets);
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gtk_target_list_unref(list);
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}
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return;
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}
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if (self_update) {
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return;
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}
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/*
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* Clipboard got updated, with data probably. No action here, we
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* are waiting for updates in gd_clipboard_get_data().
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*/
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}
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static void gd_clipboard_request(QemuClipboardInfo *info,
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QemuClipboardType type)
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{
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GtkDisplayState *gd = container_of(info->owner, GtkDisplayState, cbpeer);
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char *text;
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switch (type) {
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case QEMU_CLIPBOARD_TYPE_TEXT:
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text = gtk_clipboard_wait_for_text(gd->gtkcb[info->selection]);
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if (text) {
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qemu_clipboard_set_data(&gd->cbpeer, info, type,
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strlen(text), text, true);
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g_free(text);
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}
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break;
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default:
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break;
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}
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}
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static void gd_owner_change(GtkClipboard *clipboard,
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GdkEvent *event,
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gpointer data)
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{
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GtkDisplayState *gd = data;
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QemuClipboardSelection s = gd_find_selection(gd, clipboard);
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QemuClipboardInfo *info;
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if (gd->cbowner[s]) {
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/* ignore notifications about our own grabs */
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return;
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}
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switch (event->owner_change.reason) {
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case GDK_SETTING_ACTION_NEW:
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info = qemu_clipboard_info_new(&gd->cbpeer, s);
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if (gtk_clipboard_wait_is_text_available(clipboard)) {
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info->types[QEMU_CLIPBOARD_TYPE_TEXT].available = true;
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}
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qemu_clipboard_update(info);
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qemu_clipboard_info_unref(info);
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break;
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default:
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break;
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}
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}
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void gd_clipboard_init(GtkDisplayState *gd)
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{
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gd->cbpeer.name = "gtk";
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gd->cbpeer.update.notify = gd_clipboard_notify;
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gd->cbpeer.request = gd_clipboard_request;
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qemu_clipboard_peer_register(&gd->cbpeer);
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gd->gtkcb[QEMU_CLIPBOARD_SELECTION_CLIPBOARD] =
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gtk_clipboard_get(gdk_atom_intern("CLIPBOARD", FALSE));
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gd->gtkcb[QEMU_CLIPBOARD_SELECTION_PRIMARY] =
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gtk_clipboard_get(gdk_atom_intern("PRIMARY", FALSE));
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gd->gtkcb[QEMU_CLIPBOARD_SELECTION_SECONDARY] =
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gtk_clipboard_get(gdk_atom_intern("SECONDARY", FALSE));
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g_signal_connect(gd->gtkcb[QEMU_CLIPBOARD_SELECTION_CLIPBOARD],
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"owner-change", G_CALLBACK(gd_owner_change), gd);
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g_signal_connect(gd->gtkcb[QEMU_CLIPBOARD_SELECTION_PRIMARY],
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"owner-change", G_CALLBACK(gd_owner_change), gd);
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g_signal_connect(gd->gtkcb[QEMU_CLIPBOARD_SELECTION_SECONDARY],
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"owner-change", G_CALLBACK(gd_owner_change), gd);
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}
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1
ui/gtk.c
1
ui/gtk.c
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@ -2267,6 +2267,7 @@ static void gtk_display_init(DisplayState *ds, DisplayOptions *opts)
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opts->u.gtk.grab_on_hover) {
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gtk_menu_item_activate(GTK_MENU_ITEM(s->grab_on_hover_item));
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}
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gd_clipboard_init(s);
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}
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static void early_gtk_display_init(DisplayOptions *opts)
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@ -65,7 +65,7 @@ if gtk.found()
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softmmu_ss.add(when: 'CONFIG_WIN32', if_true: files('win32-kbd-hook.c'))
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gtk_ss = ss.source_set()
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gtk_ss.add(gtk, vte, pixman, files('gtk.c'))
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gtk_ss.add(gtk, vte, pixman, files('gtk.c', 'gtk-clipboard.c'))
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gtk_ss.add(when: x11, if_true: files('x_keymap.c'))
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gtk_ss.add(when: [opengl, 'CONFIG_OPENGL'], if_true: files('gtk-gl-area.c'))
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gtk_ss.add(when: [x11, opengl, 'CONFIG_OPENGL'], if_true: files('gtk-egl.c'))
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