xref: /openbmc/qemu/ui/gtk.c (revision 88cd34ee)
1 /*
2  * GTK UI
3  *
4  * Copyright IBM, Corp. 2012
5  *
6  * Authors:
7  *  Anthony Liguori   <aliguori@us.ibm.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17  * General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, see <http://www.gnu.org/licenses/>.
21  *
22  * Portions from gtk-vnc (originally licensed under the LGPL v2+):
23  *
24  * GTK VNC Widget
25  *
26  * Copyright (C) 2006  Anthony Liguori <anthony@codemonkey.ws>
27  * Copyright (C) 2009-2010 Daniel P. Berrange <dan@berrange.com>
28  */
29 
30 #define GETTEXT_PACKAGE "qemu"
31 #define LOCALEDIR "po"
32 
33 #include "qemu/osdep.h"
34 #include "qapi/error.h"
35 #include "qapi/qapi-commands-control.h"
36 #include "qapi/qapi-commands-misc.h"
37 #include "qemu/cutils.h"
38 
39 #include "ui/console.h"
40 #include "ui/gtk.h"
41 
42 #include <glib/gi18n.h>
43 #include <locale.h>
44 #if defined(CONFIG_VTE)
45 #include <vte/vte.h>
46 #endif
47 #include <math.h>
48 
49 #include "trace.h"
50 #include "ui/input.h"
51 #include "sysemu/runstate.h"
52 #include "sysemu/sysemu.h"
53 #include "keymaps.h"
54 #include "chardev/char.h"
55 #include "qom/object.h"
56 
57 #define MAX_VCS 10
58 #define VC_WINDOW_X_MIN  320
59 #define VC_WINDOW_Y_MIN  240
60 #define VC_TERM_X_MIN     80
61 #define VC_TERM_Y_MIN     25
62 #define VC_SCALE_MIN    0.25
63 #define VC_SCALE_STEP   0.25
64 
65 #ifdef GDK_WINDOWING_X11
66 #include "x_keymap.h"
67 
68 /* Gtk2 compat */
69 #ifndef GDK_IS_X11_DISPLAY
70 #define GDK_IS_X11_DISPLAY(dpy) (dpy != NULL)
71 #endif
72 #endif
73 
74 
75 #ifdef GDK_WINDOWING_WAYLAND
76 /* Gtk2 compat */
77 #ifndef GDK_IS_WAYLAND_DISPLAY
78 #define GDK_IS_WAYLAND_DISPLAY(dpy) (dpy != NULL)
79 #endif
80 #endif
81 
82 
83 #ifdef GDK_WINDOWING_WIN32
84 /* Gtk2 compat */
85 #ifndef GDK_IS_WIN32_DISPLAY
86 #define GDK_IS_WIN32_DISPLAY(dpy) (dpy != NULL)
87 #endif
88 #endif
89 
90 
91 #ifdef GDK_WINDOWING_BROADWAY
92 /* Gtk2 compat */
93 #ifndef GDK_IS_BROADWAY_DISPLAY
94 #define GDK_IS_BROADWAY_DISPLAY(dpy) (dpy != NULL)
95 #endif
96 #endif
97 
98 
99 #ifdef GDK_WINDOWING_QUARTZ
100 /* Gtk2 compat */
101 #ifndef GDK_IS_QUARTZ_DISPLAY
102 #define GDK_IS_QUARTZ_DISPLAY(dpy) (dpy != NULL)
103 #endif
104 #endif
105 
106 
107 #if !defined(CONFIG_VTE)
108 # define VTE_CHECK_VERSION(a, b, c) 0
109 #endif
110 
111 /* Some older mingw versions lack this constant or have
112  * it conditionally defined */
113 #ifdef _WIN32
114 # ifndef MAPVK_VK_TO_VSC
115 #  define MAPVK_VK_TO_VSC 0
116 # endif
117 #endif
118 
119 
120 #define HOTKEY_MODIFIERS        (GDK_CONTROL_MASK | GDK_MOD1_MASK)
121 
122 static const guint16 *keycode_map;
123 static size_t keycode_maplen;
124 
125 struct GtkDisplayState {
126     GtkWidget *window;
127 
128     GtkWidget *menu_bar;
129 
130     GtkAccelGroup *accel_group;
131 
132     GtkWidget *machine_menu_item;
133     GtkWidget *machine_menu;
134     GtkWidget *pause_item;
135     GtkWidget *reset_item;
136     GtkWidget *powerdown_item;
137     GtkWidget *quit_item;
138 
139     GtkWidget *view_menu_item;
140     GtkWidget *view_menu;
141     GtkWidget *full_screen_item;
142     GtkWidget *copy_item;
143     GtkWidget *zoom_in_item;
144     GtkWidget *zoom_out_item;
145     GtkWidget *zoom_fixed_item;
146     GtkWidget *zoom_fit_item;
147     GtkWidget *grab_item;
148     GtkWidget *grab_on_hover_item;
149 
150     int nb_vcs;
151     VirtualConsole vc[MAX_VCS];
152 
153     GtkWidget *show_tabs_item;
154     GtkWidget *untabify_item;
155     GtkWidget *show_menubar_item;
156 
157     GtkWidget *vbox;
158     GtkWidget *notebook;
159     int button_mask;
160     gboolean last_set;
161     int last_x;
162     int last_y;
163     int grab_x_root;
164     int grab_y_root;
165     VirtualConsole *kbd_owner;
166     VirtualConsole *ptr_owner;
167 
168     gboolean full_screen;
169 
170     GdkCursor *null_cursor;
171     Notifier mouse_mode_notifier;
172     gboolean free_scale;
173 
174     bool external_pause_update;
175 
176     bool ignore_keys;
177 
178     DisplayOptions *opts;
179 };
180 
181 typedef struct VCChardev {
182     Chardev parent;
183     VirtualConsole *console;
184     bool echo;
185 } VCChardev;
186 
187 #define TYPE_CHARDEV_VC "chardev-vc"
188 #define VC_CHARDEV(obj) OBJECT_CHECK(VCChardev, (obj), TYPE_CHARDEV_VC)
189 
190 bool gtk_use_gl_area;
191 
192 static void gd_grab_pointer(VirtualConsole *vc, const char *reason);
193 static void gd_ungrab_pointer(GtkDisplayState *s);
194 static void gd_grab_keyboard(VirtualConsole *vc, const char *reason);
195 static void gd_ungrab_keyboard(GtkDisplayState *s);
196 
197 /** Utility Functions **/
198 
199 static VirtualConsole *gd_vc_find_by_menu(GtkDisplayState *s)
200 {
201     VirtualConsole *vc;
202     gint i;
203 
204     for (i = 0; i < s->nb_vcs; i++) {
205         vc = &s->vc[i];
206         if (gtk_check_menu_item_get_active
207             (GTK_CHECK_MENU_ITEM(vc->menu_item))) {
208             return vc;
209         }
210     }
211     return NULL;
212 }
213 
214 static VirtualConsole *gd_vc_find_by_page(GtkDisplayState *s, gint page)
215 {
216     VirtualConsole *vc;
217     gint i, p;
218 
219     for (i = 0; i < s->nb_vcs; i++) {
220         vc = &s->vc[i];
221         p = gtk_notebook_page_num(GTK_NOTEBOOK(s->notebook), vc->tab_item);
222         if (p == page) {
223             return vc;
224         }
225     }
226     return NULL;
227 }
228 
229 static VirtualConsole *gd_vc_find_current(GtkDisplayState *s)
230 {
231     gint page;
232 
233     page = gtk_notebook_get_current_page(GTK_NOTEBOOK(s->notebook));
234     return gd_vc_find_by_page(s, page);
235 }
236 
237 static bool gd_is_grab_active(GtkDisplayState *s)
238 {
239     return gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->grab_item));
240 }
241 
242 static bool gd_grab_on_hover(GtkDisplayState *s)
243 {
244     return gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->grab_on_hover_item));
245 }
246 
247 static void gd_update_cursor(VirtualConsole *vc)
248 {
249     GtkDisplayState *s = vc->s;
250     GdkWindow *window;
251 
252     if (vc->type != GD_VC_GFX ||
253         !qemu_console_is_graphic(vc->gfx.dcl.con)) {
254         return;
255     }
256 
257     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
258         return;
259     }
260 
261     window = gtk_widget_get_window(GTK_WIDGET(vc->gfx.drawing_area));
262     if (s->full_screen || qemu_input_is_absolute() || s->ptr_owner == vc) {
263         gdk_window_set_cursor(window, s->null_cursor);
264     } else {
265         gdk_window_set_cursor(window, NULL);
266     }
267 }
268 
269 static void gd_update_caption(GtkDisplayState *s)
270 {
271     const char *status = "";
272     gchar *prefix;
273     gchar *title;
274     const char *grab = "";
275     bool is_paused = !runstate_is_running();
276     int i;
277 
278     if (qemu_name) {
279         prefix = g_strdup_printf("QEMU (%s)", qemu_name);
280     } else {
281         prefix = g_strdup_printf("QEMU");
282     }
283 
284     if (s->ptr_owner != NULL &&
285         s->ptr_owner->window == NULL) {
286         grab = _(" - Press Ctrl+Alt+G to release grab");
287     }
288 
289     if (is_paused) {
290         status = _(" [Paused]");
291     }
292     s->external_pause_update = true;
293     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->pause_item),
294                                    is_paused);
295     s->external_pause_update = false;
296 
297     title = g_strdup_printf("%s%s%s", prefix, status, grab);
298     gtk_window_set_title(GTK_WINDOW(s->window), title);
299     g_free(title);
300 
301     for (i = 0; i < s->nb_vcs; i++) {
302         VirtualConsole *vc = &s->vc[i];
303 
304         if (!vc->window) {
305             continue;
306         }
307         title = g_strdup_printf("%s: %s%s%s", prefix, vc->label,
308                                 vc == s->kbd_owner ? " +kbd" : "",
309                                 vc == s->ptr_owner ? " +ptr" : "");
310         gtk_window_set_title(GTK_WINDOW(vc->window), title);
311         g_free(title);
312     }
313 
314     g_free(prefix);
315 }
316 
317 static void gd_update_geometry_hints(VirtualConsole *vc)
318 {
319     GtkDisplayState *s = vc->s;
320     GdkWindowHints mask = 0;
321     GdkGeometry geo = {};
322     GtkWidget *geo_widget = NULL;
323     GtkWindow *geo_window;
324 
325     if (vc->type == GD_VC_GFX) {
326         if (!vc->gfx.ds) {
327             return;
328         }
329         if (s->free_scale) {
330             geo.min_width  = surface_width(vc->gfx.ds) * VC_SCALE_MIN;
331             geo.min_height = surface_height(vc->gfx.ds) * VC_SCALE_MIN;
332             mask |= GDK_HINT_MIN_SIZE;
333         } else {
334             geo.min_width  = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
335             geo.min_height = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
336             mask |= GDK_HINT_MIN_SIZE;
337         }
338         geo_widget = vc->gfx.drawing_area;
339         gtk_widget_set_size_request(geo_widget, geo.min_width, geo.min_height);
340 
341 #if defined(CONFIG_VTE)
342     } else if (vc->type == GD_VC_VTE) {
343         VteTerminal *term = VTE_TERMINAL(vc->vte.terminal);
344         GtkBorder padding = { 0 };
345 
346 #if VTE_CHECK_VERSION(0, 37, 0)
347         gtk_style_context_get_padding(
348                 gtk_widget_get_style_context(vc->vte.terminal),
349                 gtk_widget_get_state_flags(vc->vte.terminal),
350                 &padding);
351 #else
352         {
353             GtkBorder *ib = NULL;
354             gtk_widget_style_get(vc->vte.terminal, "inner-border", &ib, NULL);
355             if (ib) {
356                 padding = *ib;
357                 gtk_border_free(ib);
358             }
359         }
360 #endif
361 
362         geo.width_inc  = vte_terminal_get_char_width(term);
363         geo.height_inc = vte_terminal_get_char_height(term);
364         mask |= GDK_HINT_RESIZE_INC;
365         geo.base_width  = geo.width_inc;
366         geo.base_height = geo.height_inc;
367         mask |= GDK_HINT_BASE_SIZE;
368         geo.min_width  = geo.width_inc * VC_TERM_X_MIN;
369         geo.min_height = geo.height_inc * VC_TERM_Y_MIN;
370         mask |= GDK_HINT_MIN_SIZE;
371 
372         geo.base_width  += padding.left + padding.right;
373         geo.base_height += padding.top + padding.bottom;
374         geo.min_width   += padding.left + padding.right;
375         geo.min_height  += padding.top + padding.bottom;
376         geo_widget = vc->vte.terminal;
377 #endif
378     }
379 
380     geo_window = GTK_WINDOW(vc->window ? vc->window : s->window);
381     gtk_window_set_geometry_hints(geo_window, geo_widget, &geo, mask);
382 }
383 
384 void gd_update_windowsize(VirtualConsole *vc)
385 {
386     GtkDisplayState *s = vc->s;
387 
388     gd_update_geometry_hints(vc);
389 
390     if (vc->type == GD_VC_GFX && !s->full_screen && !s->free_scale) {
391         gtk_window_resize(GTK_WINDOW(vc->window ? vc->window : s->window),
392                           VC_WINDOW_X_MIN, VC_WINDOW_Y_MIN);
393     }
394 }
395 
396 static void gd_update_full_redraw(VirtualConsole *vc)
397 {
398     GtkWidget *area = vc->gfx.drawing_area;
399     int ww, wh;
400     ww = gdk_window_get_width(gtk_widget_get_window(area));
401     wh = gdk_window_get_height(gtk_widget_get_window(area));
402 #if defined(CONFIG_GTK_GL)
403     if (vc->gfx.gls && gtk_use_gl_area) {
404         gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area));
405         return;
406     }
407 #endif
408     gtk_widget_queue_draw_area(area, 0, 0, ww, wh);
409 }
410 
411 static void gtk_release_modifiers(GtkDisplayState *s)
412 {
413     VirtualConsole *vc = gd_vc_find_current(s);
414 
415     if (vc->type != GD_VC_GFX ||
416         !qemu_console_is_graphic(vc->gfx.dcl.con)) {
417         return;
418     }
419     qkbd_state_lift_all_keys(vc->gfx.kbd);
420 }
421 
422 static void gd_widget_reparent(GtkWidget *from, GtkWidget *to,
423                                GtkWidget *widget)
424 {
425     g_object_ref(G_OBJECT(widget));
426     gtk_container_remove(GTK_CONTAINER(from), widget);
427     gtk_container_add(GTK_CONTAINER(to), widget);
428     g_object_unref(G_OBJECT(widget));
429 }
430 
431 /** DisplayState Callbacks **/
432 
433 static void gd_update(DisplayChangeListener *dcl,
434                       int x, int y, int w, int h)
435 {
436     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
437     GdkWindow *win;
438     int x1, x2, y1, y2;
439     int mx, my;
440     int fbw, fbh;
441     int ww, wh;
442 
443     trace_gd_update(vc->label, x, y, w, h);
444 
445     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
446         return;
447     }
448 
449     if (vc->gfx.convert) {
450         pixman_image_composite(PIXMAN_OP_SRC, vc->gfx.ds->image,
451                                NULL, vc->gfx.convert,
452                                x, y, 0, 0, x, y, w, h);
453     }
454 
455     x1 = floor(x * vc->gfx.scale_x);
456     y1 = floor(y * vc->gfx.scale_y);
457 
458     x2 = ceil(x * vc->gfx.scale_x + w * vc->gfx.scale_x);
459     y2 = ceil(y * vc->gfx.scale_y + h * vc->gfx.scale_y);
460 
461     fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
462     fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
463 
464     win = gtk_widget_get_window(vc->gfx.drawing_area);
465     if (!win) {
466         return;
467     }
468     ww = gdk_window_get_width(win);
469     wh = gdk_window_get_height(win);
470 
471     mx = my = 0;
472     if (ww > fbw) {
473         mx = (ww - fbw) / 2;
474     }
475     if (wh > fbh) {
476         my = (wh - fbh) / 2;
477     }
478 
479     gtk_widget_queue_draw_area(vc->gfx.drawing_area,
480                                mx + x1, my + y1, (x2 - x1), (y2 - y1));
481 }
482 
483 static void gd_refresh(DisplayChangeListener *dcl)
484 {
485     graphic_hw_update(dcl->con);
486 }
487 
488 static GdkDevice *gd_get_pointer(GdkDisplay *dpy)
489 {
490 #if GTK_CHECK_VERSION(3, 20, 0)
491     return gdk_seat_get_pointer(gdk_display_get_default_seat(dpy));
492 #else
493     return gdk_device_manager_get_client_pointer(
494         gdk_display_get_device_manager(dpy));
495 #endif
496 }
497 
498 static void gd_mouse_set(DisplayChangeListener *dcl,
499                          int x, int y, int visible)
500 {
501     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
502     GdkDisplay *dpy;
503     gint x_root, y_root;
504 
505     if (qemu_input_is_absolute()) {
506         return;
507     }
508 
509     dpy = gtk_widget_get_display(vc->gfx.drawing_area);
510     gdk_window_get_root_coords(gtk_widget_get_window(vc->gfx.drawing_area),
511                                x, y, &x_root, &y_root);
512     gdk_device_warp(gd_get_pointer(dpy),
513                     gtk_widget_get_screen(vc->gfx.drawing_area),
514                     x_root, y_root);
515     vc->s->last_x = x;
516     vc->s->last_y = y;
517 }
518 
519 static void gd_cursor_define(DisplayChangeListener *dcl,
520                              QEMUCursor *c)
521 {
522     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
523     GdkPixbuf *pixbuf;
524     GdkCursor *cursor;
525 
526     if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
527         return;
528     }
529 
530     pixbuf = gdk_pixbuf_new_from_data((guchar *)(c->data),
531                                       GDK_COLORSPACE_RGB, true, 8,
532                                       c->width, c->height, c->width * 4,
533                                       NULL, NULL);
534     cursor = gdk_cursor_new_from_pixbuf
535         (gtk_widget_get_display(vc->gfx.drawing_area),
536          pixbuf, c->hot_x, c->hot_y);
537     gdk_window_set_cursor(gtk_widget_get_window(vc->gfx.drawing_area), cursor);
538     g_object_unref(pixbuf);
539     g_object_unref(cursor);
540 }
541 
542 static void gd_switch(DisplayChangeListener *dcl,
543                       DisplaySurface *surface)
544 {
545     VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
546     bool resized = true;
547 
548     trace_gd_switch(vc->label,
549                     surface ? surface_width(surface)  : 0,
550                     surface ? surface_height(surface) : 0);
551 
552     if (vc->gfx.surface) {
553         cairo_surface_destroy(vc->gfx.surface);
554         vc->gfx.surface = NULL;
555     }
556     if (vc->gfx.convert) {
557         pixman_image_unref(vc->gfx.convert);
558         vc->gfx.convert = NULL;
559     }
560 
561     if (vc->gfx.ds && surface &&
562         surface_width(vc->gfx.ds) == surface_width(surface) &&
563         surface_height(vc->gfx.ds) == surface_height(surface)) {
564         resized = false;
565     }
566     vc->gfx.ds = surface;
567 
568     if (!surface) {
569         return;
570     }
571 
572     if (surface->format == PIXMAN_x8r8g8b8) {
573         /*
574          * PIXMAN_x8r8g8b8 == CAIRO_FORMAT_RGB24
575          *
576          * No need to convert, use surface directly.  Should be the
577          * common case as this is qemu_default_pixelformat(32) too.
578          */
579         vc->gfx.surface = cairo_image_surface_create_for_data
580             (surface_data(surface),
581              CAIRO_FORMAT_RGB24,
582              surface_width(surface),
583              surface_height(surface),
584              surface_stride(surface));
585     } else {
586         /* Must convert surface, use pixman to do it. */
587         vc->gfx.convert = pixman_image_create_bits(PIXMAN_x8r8g8b8,
588                                                    surface_width(surface),
589                                                    surface_height(surface),
590                                                    NULL, 0);
591         vc->gfx.surface = cairo_image_surface_create_for_data
592             ((void *)pixman_image_get_data(vc->gfx.convert),
593              CAIRO_FORMAT_RGB24,
594              pixman_image_get_width(vc->gfx.convert),
595              pixman_image_get_height(vc->gfx.convert),
596              pixman_image_get_stride(vc->gfx.convert));
597         pixman_image_composite(PIXMAN_OP_SRC, vc->gfx.ds->image,
598                                NULL, vc->gfx.convert,
599                                0, 0, 0, 0, 0, 0,
600                                pixman_image_get_width(vc->gfx.convert),
601                                pixman_image_get_height(vc->gfx.convert));
602     }
603 
604     if (resized) {
605         gd_update_windowsize(vc);
606     } else {
607         gd_update_full_redraw(vc);
608     }
609 }
610 
611 static const DisplayChangeListenerOps dcl_ops = {
612     .dpy_name             = "gtk",
613     .dpy_gfx_update       = gd_update,
614     .dpy_gfx_switch       = gd_switch,
615     .dpy_gfx_check_format = qemu_pixman_check_format,
616     .dpy_refresh          = gd_refresh,
617     .dpy_mouse_set        = gd_mouse_set,
618     .dpy_cursor_define    = gd_cursor_define,
619 };
620 
621 
622 #if defined(CONFIG_OPENGL)
623 
624 /** DisplayState Callbacks (opengl version) **/
625 
626 #if defined(CONFIG_GTK_GL)
627 
628 static const DisplayChangeListenerOps dcl_gl_area_ops = {
629     .dpy_name             = "gtk-egl",
630     .dpy_gfx_update       = gd_gl_area_update,
631     .dpy_gfx_switch       = gd_gl_area_switch,
632     .dpy_gfx_check_format = console_gl_check_format,
633     .dpy_refresh          = gd_gl_area_refresh,
634     .dpy_mouse_set        = gd_mouse_set,
635     .dpy_cursor_define    = gd_cursor_define,
636 
637     .dpy_gl_ctx_create       = gd_gl_area_create_context,
638     .dpy_gl_ctx_destroy      = gd_gl_area_destroy_context,
639     .dpy_gl_ctx_make_current = gd_gl_area_make_current,
640     .dpy_gl_ctx_get_current  = gd_gl_area_get_current_context,
641     .dpy_gl_scanout_texture  = gd_gl_area_scanout_texture,
642     .dpy_gl_update           = gd_gl_area_scanout_flush,
643 };
644 
645 #endif /* CONFIG_GTK_GL */
646 
647 static const DisplayChangeListenerOps dcl_egl_ops = {
648     .dpy_name             = "gtk-egl",
649     .dpy_gfx_update       = gd_egl_update,
650     .dpy_gfx_switch       = gd_egl_switch,
651     .dpy_gfx_check_format = console_gl_check_format,
652     .dpy_refresh          = gd_egl_refresh,
653     .dpy_mouse_set        = gd_mouse_set,
654     .dpy_cursor_define    = gd_cursor_define,
655 
656     .dpy_gl_ctx_create       = gd_egl_create_context,
657     .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
658     .dpy_gl_ctx_make_current = gd_egl_make_current,
659     .dpy_gl_ctx_get_current  = qemu_egl_get_current_context,
660     .dpy_gl_scanout_disable  = gd_egl_scanout_disable,
661     .dpy_gl_scanout_texture  = gd_egl_scanout_texture,
662     .dpy_gl_scanout_dmabuf   = gd_egl_scanout_dmabuf,
663     .dpy_gl_cursor_dmabuf    = gd_egl_cursor_dmabuf,
664     .dpy_gl_cursor_position  = gd_egl_cursor_position,
665     .dpy_gl_release_dmabuf   = gd_egl_release_dmabuf,
666     .dpy_gl_update           = gd_egl_scanout_flush,
667 };
668 
669 #endif /* CONFIG_OPENGL */
670 
671 /** QEMU Events **/
672 
673 static void gd_change_runstate(void *opaque, int running, RunState state)
674 {
675     GtkDisplayState *s = opaque;
676 
677     gd_update_caption(s);
678 }
679 
680 static void gd_mouse_mode_change(Notifier *notify, void *data)
681 {
682     GtkDisplayState *s;
683     int i;
684 
685     s = container_of(notify, GtkDisplayState, mouse_mode_notifier);
686     /* release the grab at switching to absolute mode */
687     if (qemu_input_is_absolute() && gd_is_grab_active(s)) {
688         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
689                                        FALSE);
690     }
691     for (i = 0; i < s->nb_vcs; i++) {
692         VirtualConsole *vc = &s->vc[i];
693         gd_update_cursor(vc);
694     }
695 }
696 
697 /** GTK Events **/
698 
699 static gboolean gd_window_close(GtkWidget *widget, GdkEvent *event,
700                                 void *opaque)
701 {
702     GtkDisplayState *s = opaque;
703     bool allow_close = true;
704 
705     if (s->opts->has_window_close && !s->opts->window_close) {
706         allow_close = false;
707     }
708 
709     if (allow_close) {
710         qmp_quit(NULL);
711     }
712 
713     return TRUE;
714 }
715 
716 static void gd_set_ui_info(VirtualConsole *vc, gint width, gint height)
717 {
718     QemuUIInfo info;
719 
720     memset(&info, 0, sizeof(info));
721     info.width = width;
722     info.height = height;
723     dpy_set_ui_info(vc->gfx.dcl.con, &info);
724 }
725 
726 #if defined(CONFIG_GTK_GL)
727 
728 static gboolean gd_render_event(GtkGLArea *area, GdkGLContext *context,
729                                 void *opaque)
730 {
731     VirtualConsole *vc = opaque;
732 
733     if (vc->gfx.gls) {
734         gd_gl_area_draw(vc);
735     }
736     return TRUE;
737 }
738 
739 static void gd_resize_event(GtkGLArea *area,
740                             gint width, gint height, gpointer *opaque)
741 {
742     VirtualConsole *vc = (void *)opaque;
743 
744     gd_set_ui_info(vc, width, height);
745 }
746 
747 #endif
748 
749 static gboolean gd_draw_event(GtkWidget *widget, cairo_t *cr, void *opaque)
750 {
751     VirtualConsole *vc = opaque;
752     GtkDisplayState *s = vc->s;
753     int mx, my;
754     int ww, wh;
755     int fbw, fbh;
756 
757 #if defined(CONFIG_OPENGL)
758     if (vc->gfx.gls) {
759         if (gtk_use_gl_area) {
760             /* invoke render callback please */
761             return FALSE;
762         } else {
763             gd_egl_draw(vc);
764             return TRUE;
765         }
766     }
767 #endif
768 
769     if (!gtk_widget_get_realized(widget)) {
770         return FALSE;
771     }
772     if (!vc->gfx.ds) {
773         return FALSE;
774     }
775 
776     fbw = surface_width(vc->gfx.ds);
777     fbh = surface_height(vc->gfx.ds);
778 
779     ww = gdk_window_get_width(gtk_widget_get_window(widget));
780     wh = gdk_window_get_height(gtk_widget_get_window(widget));
781 
782     if (s->full_screen) {
783         vc->gfx.scale_x = (double)ww / fbw;
784         vc->gfx.scale_y = (double)wh / fbh;
785     } else if (s->free_scale) {
786         double sx, sy;
787 
788         sx = (double)ww / fbw;
789         sy = (double)wh / fbh;
790 
791         vc->gfx.scale_x = vc->gfx.scale_y = MIN(sx, sy);
792     }
793 
794     fbw *= vc->gfx.scale_x;
795     fbh *= vc->gfx.scale_y;
796 
797     mx = my = 0;
798     if (ww > fbw) {
799         mx = (ww - fbw) / 2;
800     }
801     if (wh > fbh) {
802         my = (wh - fbh) / 2;
803     }
804 
805     cairo_rectangle(cr, 0, 0, ww, wh);
806 
807     /* Optionally cut out the inner area where the pixmap
808        will be drawn. This avoids 'flashing' since we're
809        not double-buffering. Note we're using the undocumented
810        behaviour of drawing the rectangle from right to left
811        to cut out the whole */
812     cairo_rectangle(cr, mx + fbw, my,
813                     -1 * fbw, fbh);
814     cairo_fill(cr);
815 
816     cairo_scale(cr, vc->gfx.scale_x, vc->gfx.scale_y);
817     cairo_set_source_surface(cr, vc->gfx.surface,
818                              mx / vc->gfx.scale_x, my / vc->gfx.scale_y);
819     cairo_paint(cr);
820 
821     return TRUE;
822 }
823 
824 static gboolean gd_motion_event(GtkWidget *widget, GdkEventMotion *motion,
825                                 void *opaque)
826 {
827     VirtualConsole *vc = opaque;
828     GtkDisplayState *s = vc->s;
829     int x, y;
830     int mx, my;
831     int fbh, fbw;
832     int ww, wh;
833 
834     if (!vc->gfx.ds) {
835         return TRUE;
836     }
837 
838     fbw = surface_width(vc->gfx.ds) * vc->gfx.scale_x;
839     fbh = surface_height(vc->gfx.ds) * vc->gfx.scale_y;
840 
841     ww = gdk_window_get_width(gtk_widget_get_window(vc->gfx.drawing_area));
842     wh = gdk_window_get_height(gtk_widget_get_window(vc->gfx.drawing_area));
843 
844     mx = my = 0;
845     if (ww > fbw) {
846         mx = (ww - fbw) / 2;
847     }
848     if (wh > fbh) {
849         my = (wh - fbh) / 2;
850     }
851 
852     x = (motion->x - mx) / vc->gfx.scale_x;
853     y = (motion->y - my) / vc->gfx.scale_y;
854 
855     if (qemu_input_is_absolute()) {
856         if (x < 0 || y < 0 ||
857             x >= surface_width(vc->gfx.ds) ||
858             y >= surface_height(vc->gfx.ds)) {
859             return TRUE;
860         }
861         qemu_input_queue_abs(vc->gfx.dcl.con, INPUT_AXIS_X, x,
862                              0, surface_width(vc->gfx.ds));
863         qemu_input_queue_abs(vc->gfx.dcl.con, INPUT_AXIS_Y, y,
864                              0, surface_height(vc->gfx.ds));
865         qemu_input_event_sync();
866     } else if (s->last_set && s->ptr_owner == vc) {
867         qemu_input_queue_rel(vc->gfx.dcl.con, INPUT_AXIS_X, x - s->last_x);
868         qemu_input_queue_rel(vc->gfx.dcl.con, INPUT_AXIS_Y, y - s->last_y);
869         qemu_input_event_sync();
870     }
871     s->last_x = x;
872     s->last_y = y;
873     s->last_set = TRUE;
874 
875     if (!qemu_input_is_absolute() && s->ptr_owner == vc) {
876         GdkScreen *screen = gtk_widget_get_screen(vc->gfx.drawing_area);
877         int screen_width, screen_height;
878 
879         int x = (int)motion->x_root;
880         int y = (int)motion->y_root;
881 
882 #if GTK_CHECK_VERSION(3, 22, 0)
883         {
884             GdkDisplay *dpy = gtk_widget_get_display(widget);
885             GdkWindow *win = gtk_widget_get_window(widget);
886             GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
887             GdkRectangle geometry;
888             gdk_monitor_get_geometry(monitor, &geometry);
889             screen_width = geometry.width;
890             screen_height = geometry.height;
891         }
892 #else
893         {
894             screen_width = gdk_screen_get_width(screen);
895             screen_height = gdk_screen_get_height(screen);
896         }
897 #endif
898 
899         /* In relative mode check to see if client pointer hit
900          * one of the screen edges, and if so move it back by
901          * 200 pixels. This is important because the pointer
902          * in the server doesn't correspond 1-for-1, and so
903          * may still be only half way across the screen. Without
904          * this warp, the server pointer would thus appear to hit
905          * an invisible wall */
906         if (x == 0) {
907             x += 200;
908         }
909         if (y == 0) {
910             y += 200;
911         }
912         if (x == (screen_width - 1)) {
913             x -= 200;
914         }
915         if (y == (screen_height - 1)) {
916             y -= 200;
917         }
918 
919         if (x != (int)motion->x_root || y != (int)motion->y_root) {
920             GdkDevice *dev = gdk_event_get_device((GdkEvent *)motion);
921             gdk_device_warp(dev, screen, x, y);
922             s->last_set = FALSE;
923             return FALSE;
924         }
925     }
926     return TRUE;
927 }
928 
929 static gboolean gd_button_event(GtkWidget *widget, GdkEventButton *button,
930                                 void *opaque)
931 {
932     VirtualConsole *vc = opaque;
933     GtkDisplayState *s = vc->s;
934     InputButton btn;
935 
936     /* implicitly grab the input at the first click in the relative mode */
937     if (button->button == 1 && button->type == GDK_BUTTON_PRESS &&
938         !qemu_input_is_absolute() && s->ptr_owner != vc) {
939         if (!vc->window) {
940             gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
941                                            TRUE);
942         } else {
943             gd_grab_pointer(vc, "relative-mode-click");
944         }
945         return TRUE;
946     }
947 
948     if (button->button == 1) {
949         btn = INPUT_BUTTON_LEFT;
950     } else if (button->button == 2) {
951         btn = INPUT_BUTTON_MIDDLE;
952     } else if (button->button == 3) {
953         btn = INPUT_BUTTON_RIGHT;
954     } else if (button->button == 8) {
955         btn = INPUT_BUTTON_SIDE;
956     } else if (button->button == 9) {
957         btn = INPUT_BUTTON_EXTRA;
958     } else {
959         return TRUE;
960     }
961 
962     qemu_input_queue_btn(vc->gfx.dcl.con, btn,
963                          button->type == GDK_BUTTON_PRESS);
964     qemu_input_event_sync();
965     return TRUE;
966 }
967 
968 static gboolean gd_scroll_event(GtkWidget *widget, GdkEventScroll *scroll,
969                                 void *opaque)
970 {
971     VirtualConsole *vc = opaque;
972     InputButton btn;
973 
974     if (scroll->direction == GDK_SCROLL_UP) {
975         btn = INPUT_BUTTON_WHEEL_UP;
976     } else if (scroll->direction == GDK_SCROLL_DOWN) {
977         btn = INPUT_BUTTON_WHEEL_DOWN;
978     } else if (scroll->direction == GDK_SCROLL_SMOOTH) {
979         gdouble delta_x, delta_y;
980         if (!gdk_event_get_scroll_deltas((GdkEvent *)scroll,
981                                          &delta_x, &delta_y)) {
982             return TRUE;
983         }
984         if (delta_y == 0) {
985             return TRUE;
986         } else if (delta_y > 0) {
987             btn = INPUT_BUTTON_WHEEL_DOWN;
988         } else {
989             btn = INPUT_BUTTON_WHEEL_UP;
990         }
991     } else {
992         return TRUE;
993     }
994 
995     qemu_input_queue_btn(vc->gfx.dcl.con, btn, true);
996     qemu_input_event_sync();
997     qemu_input_queue_btn(vc->gfx.dcl.con, btn, false);
998     qemu_input_event_sync();
999     return TRUE;
1000 }
1001 
1002 
1003 static const guint16 *gd_get_keymap(size_t *maplen)
1004 {
1005     GdkDisplay *dpy = gdk_display_get_default();
1006 
1007 #ifdef GDK_WINDOWING_X11
1008     if (GDK_IS_X11_DISPLAY(dpy)) {
1009         trace_gd_keymap_windowing("x11");
1010         return qemu_xkeymap_mapping_table(
1011             gdk_x11_display_get_xdisplay(dpy), maplen);
1012     }
1013 #endif
1014 
1015 #ifdef GDK_WINDOWING_WAYLAND
1016     if (GDK_IS_WAYLAND_DISPLAY(dpy)) {
1017         trace_gd_keymap_windowing("wayland");
1018         *maplen = qemu_input_map_xorgevdev_to_qcode_len;
1019         return qemu_input_map_xorgevdev_to_qcode;
1020     }
1021 #endif
1022 
1023 #ifdef GDK_WINDOWING_WIN32
1024     if (GDK_IS_WIN32_DISPLAY(dpy)) {
1025         trace_gd_keymap_windowing("win32");
1026         *maplen = qemu_input_map_win32_to_qcode_len;
1027         return qemu_input_map_win32_to_qcode;
1028     }
1029 #endif
1030 
1031 #ifdef GDK_WINDOWING_QUARTZ
1032     if (GDK_IS_QUARTZ_DISPLAY(dpy)) {
1033         trace_gd_keymap_windowing("quartz");
1034         *maplen = qemu_input_map_osx_to_qcode_len;
1035         return qemu_input_map_osx_to_qcode;
1036     }
1037 #endif
1038 
1039 #ifdef GDK_WINDOWING_BROADWAY
1040     if (GDK_IS_BROADWAY_DISPLAY(dpy)) {
1041         trace_gd_keymap_windowing("broadway");
1042         g_warning("experimental: using broadway, x11 virtual keysym\n"
1043                   "mapping - with very limited support. See also\n"
1044                   "https://bugzilla.gnome.org/show_bug.cgi?id=700105");
1045         *maplen = qemu_input_map_x11_to_qcode_len;
1046         return qemu_input_map_x11_to_qcode;
1047     }
1048 #endif
1049 
1050     g_warning("Unsupported GDK Windowing platform.\n"
1051               "Disabling extended keycode tables.\n"
1052               "Please report to qemu-devel@nongnu.org\n"
1053               "including the following information:\n"
1054               "\n"
1055               "  - Operating system\n"
1056               "  - GDK Windowing system build\n");
1057     return NULL;
1058 }
1059 
1060 
1061 static int gd_map_keycode(int scancode)
1062 {
1063     if (!keycode_map) {
1064         return 0;
1065     }
1066     if (scancode > keycode_maplen) {
1067         return 0;
1068     }
1069 
1070     return keycode_map[scancode];
1071 }
1072 
1073 static gboolean gd_text_key_down(GtkWidget *widget,
1074                                  GdkEventKey *key, void *opaque)
1075 {
1076     VirtualConsole *vc = opaque;
1077     QemuConsole *con = vc->gfx.dcl.con;
1078 
1079     if (key->keyval == GDK_KEY_Delete) {
1080         kbd_put_qcode_console(con, Q_KEY_CODE_DELETE, false);
1081     } else if (key->length) {
1082         kbd_put_string_console(con, key->string, key->length);
1083     } else {
1084         int qcode = gd_map_keycode(key->hardware_keycode);
1085         kbd_put_qcode_console(con, qcode, false);
1086     }
1087     return TRUE;
1088 }
1089 
1090 static gboolean gd_key_event(GtkWidget *widget, GdkEventKey *key, void *opaque)
1091 {
1092     VirtualConsole *vc = opaque;
1093     GtkDisplayState *s = vc->s;
1094     int qcode;
1095 
1096     if (s->ignore_keys) {
1097         s->ignore_keys = (key->type == GDK_KEY_PRESS);
1098         return TRUE;
1099     }
1100 
1101 #ifdef WIN32
1102     /* on windows, we ought to ignore the reserved key event? */
1103     if (key->hardware_keycode == 0xff)
1104         return false;
1105 #endif
1106 
1107     if (key->keyval == GDK_KEY_Pause
1108 #ifdef G_OS_WIN32
1109         /* for some reason GDK does not fill keyval for VK_PAUSE
1110          * See https://bugzilla.gnome.org/show_bug.cgi?id=769214
1111          */
1112         || key->hardware_keycode == VK_PAUSE
1113 #endif
1114         ) {
1115         qkbd_state_key_event(vc->gfx.kbd, Q_KEY_CODE_PAUSE,
1116                              key->type == GDK_KEY_PRESS);
1117         return TRUE;
1118     }
1119 
1120     qcode = gd_map_keycode(key->hardware_keycode);
1121 
1122     trace_gd_key_event(vc->label, key->hardware_keycode, qcode,
1123                        (key->type == GDK_KEY_PRESS) ? "down" : "up");
1124 
1125     qkbd_state_key_event(vc->gfx.kbd, qcode,
1126                          key->type == GDK_KEY_PRESS);
1127 
1128     return TRUE;
1129 }
1130 
1131 static gboolean gd_event(GtkWidget *widget, GdkEvent *event, void *opaque)
1132 {
1133     if (event->type == GDK_MOTION_NOTIFY) {
1134         return gd_motion_event(widget, &event->motion, opaque);
1135     }
1136     return FALSE;
1137 }
1138 
1139 /** Window Menu Actions **/
1140 
1141 static void gd_menu_pause(GtkMenuItem *item, void *opaque)
1142 {
1143     GtkDisplayState *s = opaque;
1144 
1145     if (s->external_pause_update) {
1146         return;
1147     }
1148     if (runstate_is_running()) {
1149         qmp_stop(NULL);
1150     } else {
1151         qmp_cont(NULL);
1152     }
1153 }
1154 
1155 static void gd_menu_reset(GtkMenuItem *item, void *opaque)
1156 {
1157     qmp_system_reset(NULL);
1158 }
1159 
1160 static void gd_menu_powerdown(GtkMenuItem *item, void *opaque)
1161 {
1162     qmp_system_powerdown(NULL);
1163 }
1164 
1165 static void gd_menu_quit(GtkMenuItem *item, void *opaque)
1166 {
1167     qmp_quit(NULL);
1168 }
1169 
1170 static void gd_menu_switch_vc(GtkMenuItem *item, void *opaque)
1171 {
1172     GtkDisplayState *s = opaque;
1173     VirtualConsole *vc = gd_vc_find_by_menu(s);
1174     GtkNotebook *nb = GTK_NOTEBOOK(s->notebook);
1175     gint page;
1176 
1177     gtk_release_modifiers(s);
1178     if (vc) {
1179         page = gtk_notebook_page_num(nb, vc->tab_item);
1180         gtk_notebook_set_current_page(nb, page);
1181         gtk_widget_grab_focus(vc->focus);
1182     }
1183     s->ignore_keys = false;
1184 }
1185 
1186 static void gd_accel_switch_vc(void *opaque)
1187 {
1188     VirtualConsole *vc = opaque;
1189 
1190     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(vc->menu_item), TRUE);
1191 }
1192 
1193 static void gd_menu_show_tabs(GtkMenuItem *item, void *opaque)
1194 {
1195     GtkDisplayState *s = opaque;
1196     VirtualConsole *vc = gd_vc_find_current(s);
1197 
1198     if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->show_tabs_item))) {
1199         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), TRUE);
1200     } else {
1201         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
1202     }
1203     gd_update_windowsize(vc);
1204 }
1205 
1206 static gboolean gd_tab_window_close(GtkWidget *widget, GdkEvent *event,
1207                                     void *opaque)
1208 {
1209     VirtualConsole *vc = opaque;
1210     GtkDisplayState *s = vc->s;
1211 
1212     gtk_widget_set_sensitive(vc->menu_item, true);
1213     gd_widget_reparent(vc->window, s->notebook, vc->tab_item);
1214     gtk_notebook_set_tab_label_text(GTK_NOTEBOOK(s->notebook),
1215                                     vc->tab_item, vc->label);
1216     gtk_widget_destroy(vc->window);
1217     vc->window = NULL;
1218     return TRUE;
1219 }
1220 
1221 static gboolean gd_win_grab(void *opaque)
1222 {
1223     VirtualConsole *vc = opaque;
1224 
1225     fprintf(stderr, "%s: %s\n", __func__, vc->label);
1226     if (vc->s->ptr_owner) {
1227         gd_ungrab_pointer(vc->s);
1228     } else {
1229         gd_grab_pointer(vc, "user-request-detached-tab");
1230     }
1231     return TRUE;
1232 }
1233 
1234 static void gd_menu_untabify(GtkMenuItem *item, void *opaque)
1235 {
1236     GtkDisplayState *s = opaque;
1237     VirtualConsole *vc = gd_vc_find_current(s);
1238 
1239     if (vc->type == GD_VC_GFX &&
1240         qemu_console_is_graphic(vc->gfx.dcl.con)) {
1241         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1242                                        FALSE);
1243     }
1244     if (!vc->window) {
1245         gtk_widget_set_sensitive(vc->menu_item, false);
1246         vc->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1247         gd_widget_reparent(s->notebook, vc->window, vc->tab_item);
1248 
1249         g_signal_connect(vc->window, "delete-event",
1250                          G_CALLBACK(gd_tab_window_close), vc);
1251         gtk_widget_show_all(vc->window);
1252 
1253         if (qemu_console_is_graphic(vc->gfx.dcl.con)) {
1254             GtkAccelGroup *ag = gtk_accel_group_new();
1255             gtk_window_add_accel_group(GTK_WINDOW(vc->window), ag);
1256 
1257             GClosure *cb = g_cclosure_new_swap(G_CALLBACK(gd_win_grab),
1258                                                vc, NULL);
1259             gtk_accel_group_connect(ag, GDK_KEY_g, HOTKEY_MODIFIERS, 0, cb);
1260         }
1261 
1262         gd_update_geometry_hints(vc);
1263         gd_update_caption(s);
1264     }
1265 }
1266 
1267 static void gd_menu_show_menubar(GtkMenuItem *item, void *opaque)
1268 {
1269     GtkDisplayState *s = opaque;
1270     VirtualConsole *vc = gd_vc_find_current(s);
1271 
1272     if (s->full_screen) {
1273         return;
1274     }
1275 
1276     if (gtk_check_menu_item_get_active(
1277                 GTK_CHECK_MENU_ITEM(s->show_menubar_item))) {
1278         gtk_widget_show(s->menu_bar);
1279     } else {
1280         gtk_widget_hide(s->menu_bar);
1281     }
1282     gd_update_windowsize(vc);
1283 }
1284 
1285 static void gd_accel_show_menubar(void *opaque)
1286 {
1287     GtkDisplayState *s = opaque;
1288     gtk_menu_item_activate(GTK_MENU_ITEM(s->show_menubar_item));
1289 }
1290 
1291 static void gd_menu_full_screen(GtkMenuItem *item, void *opaque)
1292 {
1293     GtkDisplayState *s = opaque;
1294     VirtualConsole *vc = gd_vc_find_current(s);
1295 
1296     if (!s->full_screen) {
1297         gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
1298         gtk_widget_hide(s->menu_bar);
1299         if (vc->type == GD_VC_GFX) {
1300             gtk_widget_set_size_request(vc->gfx.drawing_area, -1, -1);
1301         }
1302         gtk_window_fullscreen(GTK_WINDOW(s->window));
1303         s->full_screen = TRUE;
1304     } else {
1305         gtk_window_unfullscreen(GTK_WINDOW(s->window));
1306         gd_menu_show_tabs(GTK_MENU_ITEM(s->show_tabs_item), s);
1307         if (gtk_check_menu_item_get_active(
1308                     GTK_CHECK_MENU_ITEM(s->show_menubar_item))) {
1309             gtk_widget_show(s->menu_bar);
1310         }
1311         s->full_screen = FALSE;
1312         if (vc->type == GD_VC_GFX) {
1313             vc->gfx.scale_x = 1.0;
1314             vc->gfx.scale_y = 1.0;
1315             gd_update_windowsize(vc);
1316         }
1317     }
1318 
1319     gd_update_cursor(vc);
1320 }
1321 
1322 static void gd_accel_full_screen(void *opaque)
1323 {
1324     GtkDisplayState *s = opaque;
1325     gtk_menu_item_activate(GTK_MENU_ITEM(s->full_screen_item));
1326 }
1327 
1328 static void gd_menu_zoom_in(GtkMenuItem *item, void *opaque)
1329 {
1330     GtkDisplayState *s = opaque;
1331     VirtualConsole *vc = gd_vc_find_current(s);
1332 
1333     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item),
1334                                    FALSE);
1335 
1336     vc->gfx.scale_x += VC_SCALE_STEP;
1337     vc->gfx.scale_y += VC_SCALE_STEP;
1338 
1339     gd_update_windowsize(vc);
1340 }
1341 
1342 static void gd_accel_zoom_in(void *opaque)
1343 {
1344     GtkDisplayState *s = opaque;
1345     gtk_menu_item_activate(GTK_MENU_ITEM(s->zoom_in_item));
1346 }
1347 
1348 static void gd_menu_zoom_out(GtkMenuItem *item, void *opaque)
1349 {
1350     GtkDisplayState *s = opaque;
1351     VirtualConsole *vc = gd_vc_find_current(s);
1352 
1353     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item),
1354                                    FALSE);
1355 
1356     vc->gfx.scale_x -= VC_SCALE_STEP;
1357     vc->gfx.scale_y -= VC_SCALE_STEP;
1358 
1359     vc->gfx.scale_x = MAX(vc->gfx.scale_x, VC_SCALE_MIN);
1360     vc->gfx.scale_y = MAX(vc->gfx.scale_y, VC_SCALE_MIN);
1361 
1362     gd_update_windowsize(vc);
1363 }
1364 
1365 static void gd_menu_zoom_fixed(GtkMenuItem *item, void *opaque)
1366 {
1367     GtkDisplayState *s = opaque;
1368     VirtualConsole *vc = gd_vc_find_current(s);
1369 
1370     vc->gfx.scale_x = 1.0;
1371     vc->gfx.scale_y = 1.0;
1372 
1373     gd_update_windowsize(vc);
1374 }
1375 
1376 static void gd_menu_zoom_fit(GtkMenuItem *item, void *opaque)
1377 {
1378     GtkDisplayState *s = opaque;
1379     VirtualConsole *vc = gd_vc_find_current(s);
1380 
1381     if (gtk_check_menu_item_get_active(GTK_CHECK_MENU_ITEM(s->zoom_fit_item))) {
1382         s->free_scale = TRUE;
1383     } else {
1384         s->free_scale = FALSE;
1385         vc->gfx.scale_x = 1.0;
1386         vc->gfx.scale_y = 1.0;
1387     }
1388 
1389     gd_update_windowsize(vc);
1390     gd_update_full_redraw(vc);
1391 }
1392 
1393 #if GTK_CHECK_VERSION(3, 20, 0)
1394 static void gd_grab_update(VirtualConsole *vc, bool kbd, bool ptr)
1395 {
1396     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1397     GdkSeat *seat = gdk_display_get_default_seat(display);
1398     GdkWindow *window = gtk_widget_get_window(vc->gfx.drawing_area);
1399     GdkSeatCapabilities caps = 0;
1400     GdkCursor *cursor = NULL;
1401 
1402     if (kbd) {
1403         caps |= GDK_SEAT_CAPABILITY_KEYBOARD;
1404     }
1405     if (ptr) {
1406         caps |= GDK_SEAT_CAPABILITY_ALL_POINTING;
1407         cursor = vc->s->null_cursor;
1408     }
1409 
1410     if (caps) {
1411         gdk_seat_grab(seat, window, caps, false, cursor,
1412                       NULL, NULL, NULL);
1413     } else {
1414         gdk_seat_ungrab(seat);
1415     }
1416 }
1417 #else
1418 static void gd_grab_devices(VirtualConsole *vc, bool grab,
1419                             GdkInputSource source, GdkEventMask mask,
1420                             GdkCursor *cursor)
1421 {
1422     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1423     GdkDeviceManager *mgr = gdk_display_get_device_manager(display);
1424     GList *devs = gdk_device_manager_list_devices(mgr, GDK_DEVICE_TYPE_MASTER);
1425     GList *tmp = devs;
1426 
1427     for (tmp = devs; tmp; tmp = tmp->next) {
1428         GdkDevice *dev = tmp->data;
1429         if (gdk_device_get_source(dev) != source) {
1430             continue;
1431         }
1432         if (grab) {
1433             GdkWindow *win = gtk_widget_get_window(vc->gfx.drawing_area);
1434             gdk_device_grab(dev, win, GDK_OWNERSHIP_NONE, FALSE,
1435                             mask, cursor, GDK_CURRENT_TIME);
1436         } else {
1437             gdk_device_ungrab(dev, GDK_CURRENT_TIME);
1438         }
1439     }
1440     g_list_free(devs);
1441 }
1442 #endif
1443 
1444 static void gd_grab_keyboard(VirtualConsole *vc, const char *reason)
1445 {
1446     if (vc->s->kbd_owner) {
1447         if (vc->s->kbd_owner == vc) {
1448             return;
1449         } else {
1450             gd_ungrab_keyboard(vc->s);
1451         }
1452     }
1453 
1454 #if GTK_CHECK_VERSION(3, 20, 0)
1455     gd_grab_update(vc, true, vc->s->ptr_owner == vc);
1456 #else
1457     gd_grab_devices(vc, true, GDK_SOURCE_KEYBOARD,
1458                    GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
1459                    NULL);
1460 #endif
1461     vc->s->kbd_owner = vc;
1462     gd_update_caption(vc->s);
1463     trace_gd_grab(vc->label, "kbd", reason);
1464 }
1465 
1466 static void gd_ungrab_keyboard(GtkDisplayState *s)
1467 {
1468     VirtualConsole *vc = s->kbd_owner;
1469 
1470     if (vc == NULL) {
1471         return;
1472     }
1473     s->kbd_owner = NULL;
1474 
1475 #if GTK_CHECK_VERSION(3, 20, 0)
1476     gd_grab_update(vc, false, vc->s->ptr_owner == vc);
1477 #else
1478     gd_grab_devices(vc, false, GDK_SOURCE_KEYBOARD, 0, NULL);
1479 #endif
1480     gd_update_caption(s);
1481     trace_gd_ungrab(vc->label, "kbd");
1482 }
1483 
1484 static void gd_grab_pointer(VirtualConsole *vc, const char *reason)
1485 {
1486     GdkDisplay *display = gtk_widget_get_display(vc->gfx.drawing_area);
1487 
1488     if (vc->s->ptr_owner) {
1489         if (vc->s->ptr_owner == vc) {
1490             return;
1491         } else {
1492             gd_ungrab_pointer(vc->s);
1493         }
1494     }
1495 
1496 #if GTK_CHECK_VERSION(3, 20, 0)
1497     gd_grab_update(vc, vc->s->kbd_owner == vc, true);
1498     gdk_device_get_position(gd_get_pointer(display),
1499                             NULL, &vc->s->grab_x_root, &vc->s->grab_y_root);
1500 #else
1501     gd_grab_devices(vc, true, GDK_SOURCE_MOUSE,
1502                     GDK_POINTER_MOTION_MASK |
1503                     GDK_BUTTON_PRESS_MASK |
1504                     GDK_BUTTON_RELEASE_MASK |
1505                     GDK_BUTTON_MOTION_MASK |
1506                     GDK_SCROLL_MASK,
1507                     vc->s->null_cursor);
1508     gdk_device_get_position(gd_get_pointer(display),
1509                             NULL, &vc->s->grab_x_root, &vc->s->grab_y_root);
1510 #endif
1511     vc->s->ptr_owner = vc;
1512     gd_update_caption(vc->s);
1513     trace_gd_grab(vc->label, "ptr", reason);
1514 }
1515 
1516 static void gd_ungrab_pointer(GtkDisplayState *s)
1517 {
1518     VirtualConsole *vc = s->ptr_owner;
1519     GdkDisplay *display;
1520 
1521     if (vc == NULL) {
1522         return;
1523     }
1524     s->ptr_owner = NULL;
1525 
1526     display = gtk_widget_get_display(vc->gfx.drawing_area);
1527 #if GTK_CHECK_VERSION(3, 20, 0)
1528     gd_grab_update(vc, vc->s->kbd_owner == vc, false);
1529     gdk_device_warp(gd_get_pointer(display),
1530                     gtk_widget_get_screen(vc->gfx.drawing_area),
1531                     vc->s->grab_x_root, vc->s->grab_y_root);
1532 #else
1533     gd_grab_devices(vc, false, GDK_SOURCE_MOUSE, 0, NULL);
1534     gdk_device_warp(gd_get_pointer(display),
1535                     gtk_widget_get_screen(vc->gfx.drawing_area),
1536                     vc->s->grab_x_root, vc->s->grab_y_root);
1537 #endif
1538     gd_update_caption(s);
1539     trace_gd_ungrab(vc->label, "ptr");
1540 }
1541 
1542 static void gd_menu_grab_input(GtkMenuItem *item, void *opaque)
1543 {
1544     GtkDisplayState *s = opaque;
1545     VirtualConsole *vc = gd_vc_find_current(s);
1546 
1547     if (gd_is_grab_active(s)) {
1548         gd_grab_keyboard(vc, "user-request-main-window");
1549         gd_grab_pointer(vc, "user-request-main-window");
1550     } else {
1551         gd_ungrab_keyboard(s);
1552         gd_ungrab_pointer(s);
1553     }
1554 
1555     gd_update_cursor(vc);
1556 }
1557 
1558 static void gd_change_page(GtkNotebook *nb, gpointer arg1, guint arg2,
1559                            gpointer data)
1560 {
1561     GtkDisplayState *s = data;
1562     VirtualConsole *vc;
1563     gboolean on_vga;
1564 
1565     if (!gtk_widget_get_realized(s->notebook)) {
1566         return;
1567     }
1568 
1569     vc = gd_vc_find_by_page(s, arg2);
1570     if (!vc) {
1571         return;
1572     }
1573     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(vc->menu_item),
1574                                    TRUE);
1575     on_vga = (vc->type == GD_VC_GFX &&
1576               qemu_console_is_graphic(vc->gfx.dcl.con));
1577     if (!on_vga) {
1578         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1579                                        FALSE);
1580     } else if (s->full_screen) {
1581         gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->grab_item),
1582                                        TRUE);
1583     }
1584     gtk_widget_set_sensitive(s->grab_item, on_vga);
1585 #ifdef CONFIG_VTE
1586     gtk_widget_set_sensitive(s->copy_item, vc->type == GD_VC_VTE);
1587 #endif
1588 
1589     gd_update_windowsize(vc);
1590     gd_update_cursor(vc);
1591 }
1592 
1593 static gboolean gd_enter_event(GtkWidget *widget, GdkEventCrossing *crossing,
1594                                gpointer opaque)
1595 {
1596     VirtualConsole *vc = opaque;
1597     GtkDisplayState *s = vc->s;
1598 
1599     if (gd_grab_on_hover(s)) {
1600         gd_grab_keyboard(vc, "grab-on-hover");
1601     }
1602     return TRUE;
1603 }
1604 
1605 static gboolean gd_leave_event(GtkWidget *widget, GdkEventCrossing *crossing,
1606                                gpointer opaque)
1607 {
1608     VirtualConsole *vc = opaque;
1609     GtkDisplayState *s = vc->s;
1610 
1611     if (gd_grab_on_hover(s)) {
1612         gd_ungrab_keyboard(s);
1613     }
1614     return TRUE;
1615 }
1616 
1617 static gboolean gd_focus_out_event(GtkWidget *widget,
1618                                    GdkEventCrossing *crossing, gpointer opaque)
1619 {
1620     VirtualConsole *vc = opaque;
1621     GtkDisplayState *s = vc->s;
1622 
1623     gtk_release_modifiers(s);
1624     return TRUE;
1625 }
1626 
1627 static gboolean gd_configure(GtkWidget *widget,
1628                              GdkEventConfigure *cfg, gpointer opaque)
1629 {
1630     VirtualConsole *vc = opaque;
1631 
1632     gd_set_ui_info(vc, cfg->width, cfg->height);
1633     return FALSE;
1634 }
1635 
1636 /** Virtual Console Callbacks **/
1637 
1638 static GSList *gd_vc_menu_init(GtkDisplayState *s, VirtualConsole *vc,
1639                                int idx, GSList *group, GtkWidget *view_menu)
1640 {
1641     vc->menu_item = gtk_radio_menu_item_new_with_mnemonic(group, vc->label);
1642     gtk_accel_group_connect(s->accel_group, GDK_KEY_1 + idx,
1643             HOTKEY_MODIFIERS, 0,
1644             g_cclosure_new_swap(G_CALLBACK(gd_accel_switch_vc), vc, NULL));
1645     gtk_accel_label_set_accel(
1646             GTK_ACCEL_LABEL(gtk_bin_get_child(GTK_BIN(vc->menu_item))),
1647             GDK_KEY_1 + idx, HOTKEY_MODIFIERS);
1648 
1649     g_signal_connect(vc->menu_item, "activate",
1650                      G_CALLBACK(gd_menu_switch_vc), s);
1651     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), vc->menu_item);
1652 
1653     group = gtk_radio_menu_item_get_group(GTK_RADIO_MENU_ITEM(vc->menu_item));
1654     return group;
1655 }
1656 
1657 #if defined(CONFIG_VTE)
1658 static void gd_menu_copy(GtkMenuItem *item, void *opaque)
1659 {
1660     GtkDisplayState *s = opaque;
1661     VirtualConsole *vc = gd_vc_find_current(s);
1662 
1663 #if VTE_CHECK_VERSION(0, 50, 0)
1664     vte_terminal_copy_clipboard_format(VTE_TERMINAL(vc->vte.terminal),
1665                                        VTE_FORMAT_TEXT);
1666 #else
1667     vte_terminal_copy_clipboard(VTE_TERMINAL(vc->vte.terminal));
1668 #endif
1669 }
1670 
1671 static void gd_vc_adjustment_changed(GtkAdjustment *adjustment, void *opaque)
1672 {
1673     VirtualConsole *vc = opaque;
1674 
1675     if (gtk_adjustment_get_upper(adjustment) >
1676         gtk_adjustment_get_page_size(adjustment)) {
1677         gtk_widget_show(vc->vte.scrollbar);
1678     } else {
1679         gtk_widget_hide(vc->vte.scrollbar);
1680     }
1681 }
1682 
1683 static int gd_vc_chr_write(Chardev *chr, const uint8_t *buf, int len)
1684 {
1685     VCChardev *vcd = VC_CHARDEV(chr);
1686     VirtualConsole *vc = vcd->console;
1687 
1688     vte_terminal_feed(VTE_TERMINAL(vc->vte.terminal), (const char *)buf, len);
1689     return len;
1690 }
1691 
1692 static void gd_vc_chr_set_echo(Chardev *chr, bool echo)
1693 {
1694     VCChardev *vcd = VC_CHARDEV(chr);
1695     VirtualConsole *vc = vcd->console;
1696 
1697     if (vc) {
1698         vc->vte.echo = echo;
1699     } else {
1700         vcd->echo = echo;
1701     }
1702 }
1703 
1704 static int nb_vcs;
1705 static Chardev *vcs[MAX_VCS];
1706 static void gd_vc_open(Chardev *chr,
1707                        ChardevBackend *backend,
1708                        bool *be_opened,
1709                        Error **errp)
1710 {
1711     if (nb_vcs == MAX_VCS) {
1712         error_setg(errp, "Maximum number of consoles reached");
1713         return;
1714     }
1715 
1716     vcs[nb_vcs++] = chr;
1717 
1718     /* console/chardev init sometimes completes elsewhere in a 2nd
1719      * stage, so defer OPENED events until they are fully initialized
1720      */
1721     *be_opened = false;
1722 }
1723 
1724 static void char_gd_vc_class_init(ObjectClass *oc, void *data)
1725 {
1726     ChardevClass *cc = CHARDEV_CLASS(oc);
1727 
1728     cc->parse = qemu_chr_parse_vc;
1729     cc->open = gd_vc_open;
1730     cc->chr_write = gd_vc_chr_write;
1731     cc->chr_set_echo = gd_vc_chr_set_echo;
1732 }
1733 
1734 static const TypeInfo char_gd_vc_type_info = {
1735     .name = TYPE_CHARDEV_VC,
1736     .parent = TYPE_CHARDEV,
1737     .instance_size = sizeof(VCChardev),
1738     .class_init = char_gd_vc_class_init,
1739 };
1740 
1741 static gboolean gd_vc_in(VteTerminal *terminal, gchar *text, guint size,
1742                          gpointer user_data)
1743 {
1744     VirtualConsole *vc = user_data;
1745 
1746     if (vc->vte.echo) {
1747         VteTerminal *term = VTE_TERMINAL(vc->vte.terminal);
1748         int i;
1749         for (i = 0; i < size; i++) {
1750             uint8_t c = text[i];
1751             if (c >= 128 || isprint(c)) {
1752                 /* 8-bit characters are considered printable.  */
1753                 vte_terminal_feed(term, &text[i], 1);
1754             } else if (c == '\r' || c == '\n') {
1755                 vte_terminal_feed(term, "\r\n", 2);
1756             } else {
1757                 char ctrl[2] = { '^', 0};
1758                 ctrl[1] = text[i] ^ 64;
1759                 vte_terminal_feed(term, ctrl, 2);
1760             }
1761         }
1762     }
1763 
1764     qemu_chr_be_write(vc->vte.chr, (uint8_t  *)text, (unsigned int)size);
1765     return TRUE;
1766 }
1767 
1768 static GSList *gd_vc_vte_init(GtkDisplayState *s, VirtualConsole *vc,
1769                               Chardev *chr, int idx,
1770                               GSList *group, GtkWidget *view_menu)
1771 {
1772     char buffer[32];
1773     GtkWidget *box;
1774     GtkWidget *scrollbar;
1775     GtkAdjustment *vadjustment;
1776     VCChardev *vcd = VC_CHARDEV(chr);
1777 
1778     vc->s = s;
1779     vc->vte.echo = vcd->echo;
1780     vc->vte.chr = chr;
1781     vcd->console = vc;
1782 
1783     snprintf(buffer, sizeof(buffer), "vc%d", idx);
1784     vc->label = g_strdup_printf("%s", vc->vte.chr->label
1785                                 ? vc->vte.chr->label : buffer);
1786     group = gd_vc_menu_init(s, vc, idx, group, view_menu);
1787 
1788     vc->vte.terminal = vte_terminal_new();
1789     g_signal_connect(vc->vte.terminal, "commit", G_CALLBACK(gd_vc_in), vc);
1790 
1791     /* The documentation says that the default is UTF-8, but actually it is
1792      * 7-bit ASCII at least in VTE 0.38. The function is deprecated since
1793      * VTE 0.54 (only UTF-8 is supported now). */
1794 #if !VTE_CHECK_VERSION(0, 54, 0)
1795 #if VTE_CHECK_VERSION(0, 38, 0)
1796     vte_terminal_set_encoding(VTE_TERMINAL(vc->vte.terminal), "UTF-8", NULL);
1797 #else
1798     vte_terminal_set_encoding(VTE_TERMINAL(vc->vte.terminal), "UTF-8");
1799 #endif
1800 #endif
1801 
1802     vte_terminal_set_scrollback_lines(VTE_TERMINAL(vc->vte.terminal), -1);
1803     vte_terminal_set_size(VTE_TERMINAL(vc->vte.terminal),
1804                           VC_TERM_X_MIN, VC_TERM_Y_MIN);
1805 
1806 #if VTE_CHECK_VERSION(0, 28, 0)
1807     vadjustment = gtk_scrollable_get_vadjustment
1808         (GTK_SCROLLABLE(vc->vte.terminal));
1809 #else
1810     vadjustment = vte_terminal_get_adjustment(VTE_TERMINAL(vc->vte.terminal));
1811 #endif
1812 
1813     box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 2);
1814     scrollbar = gtk_scrollbar_new(GTK_ORIENTATION_VERTICAL, vadjustment);
1815 
1816     gtk_box_pack_end(GTK_BOX(box), scrollbar, FALSE, FALSE, 0);
1817     gtk_box_pack_end(GTK_BOX(box), vc->vte.terminal, TRUE, TRUE, 0);
1818 
1819     vc->vte.box = box;
1820     vc->vte.scrollbar = scrollbar;
1821 
1822     g_signal_connect(vadjustment, "changed",
1823                      G_CALLBACK(gd_vc_adjustment_changed), vc);
1824 
1825     vc->type = GD_VC_VTE;
1826     vc->tab_item = box;
1827     vc->focus = vc->vte.terminal;
1828     gtk_notebook_append_page(GTK_NOTEBOOK(s->notebook), vc->tab_item,
1829                              gtk_label_new(vc->label));
1830 
1831     qemu_chr_be_event(vc->vte.chr, CHR_EVENT_OPENED);
1832 
1833     return group;
1834 }
1835 
1836 static void gd_vcs_init(GtkDisplayState *s, GSList *group,
1837                         GtkWidget *view_menu)
1838 {
1839     int i;
1840 
1841     for (i = 0; i < nb_vcs; i++) {
1842         VirtualConsole *vc = &s->vc[s->nb_vcs];
1843         group = gd_vc_vte_init(s, vc, vcs[i], s->nb_vcs, group, view_menu);
1844         s->nb_vcs++;
1845     }
1846 }
1847 #endif /* CONFIG_VTE */
1848 
1849 /** Window Creation **/
1850 
1851 static void gd_connect_vc_gfx_signals(VirtualConsole *vc)
1852 {
1853     g_signal_connect(vc->gfx.drawing_area, "draw",
1854                      G_CALLBACK(gd_draw_event), vc);
1855 #if defined(CONFIG_GTK_GL)
1856     if (gtk_use_gl_area) {
1857         /* wire up GtkGlArea events */
1858         g_signal_connect(vc->gfx.drawing_area, "render",
1859                          G_CALLBACK(gd_render_event), vc);
1860         g_signal_connect(vc->gfx.drawing_area, "resize",
1861                          G_CALLBACK(gd_resize_event), vc);
1862     }
1863 #endif
1864     if (qemu_console_is_graphic(vc->gfx.dcl.con)) {
1865         g_signal_connect(vc->gfx.drawing_area, "event",
1866                          G_CALLBACK(gd_event), vc);
1867         g_signal_connect(vc->gfx.drawing_area, "button-press-event",
1868                          G_CALLBACK(gd_button_event), vc);
1869         g_signal_connect(vc->gfx.drawing_area, "button-release-event",
1870                          G_CALLBACK(gd_button_event), vc);
1871         g_signal_connect(vc->gfx.drawing_area, "scroll-event",
1872                          G_CALLBACK(gd_scroll_event), vc);
1873         g_signal_connect(vc->gfx.drawing_area, "key-press-event",
1874                          G_CALLBACK(gd_key_event), vc);
1875         g_signal_connect(vc->gfx.drawing_area, "key-release-event",
1876                          G_CALLBACK(gd_key_event), vc);
1877 
1878         g_signal_connect(vc->gfx.drawing_area, "enter-notify-event",
1879                          G_CALLBACK(gd_enter_event), vc);
1880         g_signal_connect(vc->gfx.drawing_area, "leave-notify-event",
1881                          G_CALLBACK(gd_leave_event), vc);
1882         g_signal_connect(vc->gfx.drawing_area, "focus-out-event",
1883                          G_CALLBACK(gd_focus_out_event), vc);
1884         g_signal_connect(vc->gfx.drawing_area, "configure-event",
1885                          G_CALLBACK(gd_configure), vc);
1886     } else {
1887         g_signal_connect(vc->gfx.drawing_area, "key-press-event",
1888                          G_CALLBACK(gd_text_key_down), vc);
1889     }
1890 }
1891 
1892 static void gd_connect_signals(GtkDisplayState *s)
1893 {
1894     g_signal_connect(s->show_tabs_item, "activate",
1895                      G_CALLBACK(gd_menu_show_tabs), s);
1896     g_signal_connect(s->untabify_item, "activate",
1897                      G_CALLBACK(gd_menu_untabify), s);
1898     g_signal_connect(s->show_menubar_item, "activate",
1899                      G_CALLBACK(gd_menu_show_menubar), s);
1900 
1901     g_signal_connect(s->window, "delete-event",
1902                      G_CALLBACK(gd_window_close), s);
1903 
1904     g_signal_connect(s->pause_item, "activate",
1905                      G_CALLBACK(gd_menu_pause), s);
1906     g_signal_connect(s->reset_item, "activate",
1907                      G_CALLBACK(gd_menu_reset), s);
1908     g_signal_connect(s->powerdown_item, "activate",
1909                      G_CALLBACK(gd_menu_powerdown), s);
1910     g_signal_connect(s->quit_item, "activate",
1911                      G_CALLBACK(gd_menu_quit), s);
1912 #if defined(CONFIG_VTE)
1913     g_signal_connect(s->copy_item, "activate",
1914                      G_CALLBACK(gd_menu_copy), s);
1915 #endif
1916     g_signal_connect(s->full_screen_item, "activate",
1917                      G_CALLBACK(gd_menu_full_screen), s);
1918     g_signal_connect(s->zoom_in_item, "activate",
1919                      G_CALLBACK(gd_menu_zoom_in), s);
1920     g_signal_connect(s->zoom_out_item, "activate",
1921                      G_CALLBACK(gd_menu_zoom_out), s);
1922     g_signal_connect(s->zoom_fixed_item, "activate",
1923                      G_CALLBACK(gd_menu_zoom_fixed), s);
1924     g_signal_connect(s->zoom_fit_item, "activate",
1925                      G_CALLBACK(gd_menu_zoom_fit), s);
1926     g_signal_connect(s->grab_item, "activate",
1927                      G_CALLBACK(gd_menu_grab_input), s);
1928     g_signal_connect(s->notebook, "switch-page",
1929                      G_CALLBACK(gd_change_page), s);
1930 }
1931 
1932 static GtkWidget *gd_create_menu_machine(GtkDisplayState *s)
1933 {
1934     GtkWidget *machine_menu;
1935     GtkWidget *separator;
1936 
1937     machine_menu = gtk_menu_new();
1938     gtk_menu_set_accel_group(GTK_MENU(machine_menu), s->accel_group);
1939 
1940     s->pause_item = gtk_check_menu_item_new_with_mnemonic(_("_Pause"));
1941     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->pause_item);
1942 
1943     separator = gtk_separator_menu_item_new();
1944     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), separator);
1945 
1946     s->reset_item = gtk_menu_item_new_with_mnemonic(_("_Reset"));
1947     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->reset_item);
1948 
1949     s->powerdown_item = gtk_menu_item_new_with_mnemonic(_("Power _Down"));
1950     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->powerdown_item);
1951 
1952     separator = gtk_separator_menu_item_new();
1953     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), separator);
1954 
1955     s->quit_item = gtk_menu_item_new_with_mnemonic(_("_Quit"));
1956     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->quit_item),
1957                                  "<QEMU>/Machine/Quit");
1958     gtk_accel_map_add_entry("<QEMU>/Machine/Quit",
1959                             GDK_KEY_q, HOTKEY_MODIFIERS);
1960     gtk_menu_shell_append(GTK_MENU_SHELL(machine_menu), s->quit_item);
1961 
1962     return machine_menu;
1963 }
1964 
1965 /*
1966  * If available, return the refresh rate of the display in milli-Hertz,
1967  * else return 0.
1968  */
1969 static int gd_refresh_rate_millihz(GtkWidget *window)
1970 {
1971 #ifdef GDK_VERSION_3_22
1972     GdkWindow *win = gtk_widget_get_window(window);
1973 
1974     if (win) {
1975         GdkDisplay *dpy = gtk_widget_get_display(window);
1976         GdkMonitor *monitor = gdk_display_get_monitor_at_window(dpy, win);
1977 
1978         return gdk_monitor_get_refresh_rate(monitor);
1979     }
1980 #endif
1981     return 0;
1982 }
1983 
1984 static GSList *gd_vc_gfx_init(GtkDisplayState *s, VirtualConsole *vc,
1985                               QemuConsole *con, int idx,
1986                               GSList *group, GtkWidget *view_menu)
1987 {
1988     bool zoom_to_fit = false;
1989     int refresh_rate_millihz;
1990 
1991     vc->label = qemu_console_get_label(con);
1992     vc->s = s;
1993     vc->gfx.scale_x = 1.0;
1994     vc->gfx.scale_y = 1.0;
1995 
1996 #if defined(CONFIG_OPENGL)
1997     if (display_opengl) {
1998 #if defined(CONFIG_GTK_GL)
1999         if (gtk_use_gl_area) {
2000             vc->gfx.drawing_area = gtk_gl_area_new();
2001             vc->gfx.dcl.ops = &dcl_gl_area_ops;
2002         } else
2003 #endif /* CONFIG_GTK_GL */
2004         {
2005             vc->gfx.drawing_area = gtk_drawing_area_new();
2006             /*
2007              * gtk_widget_set_double_buffered() was deprecated in 3.14.
2008              * It is required for opengl rendering on X11 though.  A
2009              * proper replacement (native opengl support) is only
2010              * available in 3.16+.  Silence the warning if possible.
2011              */
2012 #ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
2013 #pragma GCC diagnostic push
2014 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
2015 #endif
2016             gtk_widget_set_double_buffered(vc->gfx.drawing_area, FALSE);
2017 #ifdef CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE
2018 #pragma GCC diagnostic pop
2019 #endif
2020             vc->gfx.dcl.ops = &dcl_egl_ops;
2021         }
2022     } else
2023 #endif
2024     {
2025         vc->gfx.drawing_area = gtk_drawing_area_new();
2026         vc->gfx.dcl.ops = &dcl_ops;
2027     }
2028 
2029 
2030     gtk_widget_add_events(vc->gfx.drawing_area,
2031                           GDK_POINTER_MOTION_MASK |
2032                           GDK_BUTTON_PRESS_MASK |
2033                           GDK_BUTTON_RELEASE_MASK |
2034                           GDK_BUTTON_MOTION_MASK |
2035                           GDK_ENTER_NOTIFY_MASK |
2036                           GDK_LEAVE_NOTIFY_MASK |
2037                           GDK_SCROLL_MASK |
2038                           GDK_SMOOTH_SCROLL_MASK |
2039                           GDK_KEY_PRESS_MASK);
2040     gtk_widget_set_can_focus(vc->gfx.drawing_area, TRUE);
2041 
2042     vc->type = GD_VC_GFX;
2043     vc->tab_item = vc->gfx.drawing_area;
2044     vc->focus = vc->gfx.drawing_area;
2045     gtk_notebook_append_page(GTK_NOTEBOOK(s->notebook),
2046                              vc->tab_item, gtk_label_new(vc->label));
2047 
2048     vc->gfx.kbd = qkbd_state_init(con);
2049     vc->gfx.dcl.con = con;
2050 
2051     refresh_rate_millihz = gd_refresh_rate_millihz(vc->window ?
2052                                                    vc->window : s->window);
2053     if (refresh_rate_millihz) {
2054         vc->gfx.dcl.update_interval = MILLISEC_PER_SEC / refresh_rate_millihz;
2055     }
2056 
2057     register_displaychangelistener(&vc->gfx.dcl);
2058 
2059     gd_connect_vc_gfx_signals(vc);
2060     group = gd_vc_menu_init(s, vc, idx, group, view_menu);
2061 
2062     if (dpy_ui_info_supported(vc->gfx.dcl.con)) {
2063         zoom_to_fit = true;
2064     }
2065     if (s->opts->u.gtk.has_zoom_to_fit) {
2066         zoom_to_fit = s->opts->u.gtk.zoom_to_fit;
2067     }
2068     if (zoom_to_fit) {
2069         gtk_menu_item_activate(GTK_MENU_ITEM(s->zoom_fit_item));
2070         s->free_scale = true;
2071     }
2072 
2073     return group;
2074 }
2075 
2076 static GtkWidget *gd_create_menu_view(GtkDisplayState *s)
2077 {
2078     GSList *group = NULL;
2079     GtkWidget *view_menu;
2080     GtkWidget *separator;
2081     QemuConsole *con;
2082     int vc;
2083 
2084     view_menu = gtk_menu_new();
2085     gtk_menu_set_accel_group(GTK_MENU(view_menu), s->accel_group);
2086 
2087     s->full_screen_item = gtk_menu_item_new_with_mnemonic(_("_Fullscreen"));
2088 
2089 #if defined(CONFIG_VTE)
2090     s->copy_item = gtk_menu_item_new_with_mnemonic(_("_Copy"));
2091     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->copy_item);
2092 #endif
2093 
2094     gtk_accel_group_connect(s->accel_group, GDK_KEY_f, HOTKEY_MODIFIERS, 0,
2095             g_cclosure_new_swap(G_CALLBACK(gd_accel_full_screen), s, NULL));
2096     gtk_accel_label_set_accel(
2097             GTK_ACCEL_LABEL(gtk_bin_get_child(GTK_BIN(s->full_screen_item))),
2098             GDK_KEY_f, HOTKEY_MODIFIERS);
2099     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->full_screen_item);
2100 
2101     separator = gtk_separator_menu_item_new();
2102     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2103 
2104     s->zoom_in_item = gtk_menu_item_new_with_mnemonic(_("Zoom _In"));
2105     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_in_item),
2106                                  "<QEMU>/View/Zoom In");
2107     gtk_accel_map_add_entry("<QEMU>/View/Zoom In", GDK_KEY_plus,
2108                             HOTKEY_MODIFIERS);
2109     gtk_accel_group_connect(s->accel_group, GDK_KEY_equal, HOTKEY_MODIFIERS, 0,
2110             g_cclosure_new_swap(G_CALLBACK(gd_accel_zoom_in), s, NULL));
2111     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_in_item);
2112 
2113     s->zoom_out_item = gtk_menu_item_new_with_mnemonic(_("Zoom _Out"));
2114     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_out_item),
2115                                  "<QEMU>/View/Zoom Out");
2116     gtk_accel_map_add_entry("<QEMU>/View/Zoom Out", GDK_KEY_minus,
2117                             HOTKEY_MODIFIERS);
2118     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_out_item);
2119 
2120     s->zoom_fixed_item = gtk_menu_item_new_with_mnemonic(_("Best _Fit"));
2121     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->zoom_fixed_item),
2122                                  "<QEMU>/View/Zoom Fixed");
2123     gtk_accel_map_add_entry("<QEMU>/View/Zoom Fixed", GDK_KEY_0,
2124                             HOTKEY_MODIFIERS);
2125     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_fixed_item);
2126 
2127     s->zoom_fit_item = gtk_check_menu_item_new_with_mnemonic(_("Zoom To _Fit"));
2128     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->zoom_fit_item);
2129 
2130     separator = gtk_separator_menu_item_new();
2131     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2132 
2133     s->grab_on_hover_item = gtk_check_menu_item_new_with_mnemonic(_("Grab On _Hover"));
2134     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->grab_on_hover_item);
2135 
2136     s->grab_item = gtk_check_menu_item_new_with_mnemonic(_("_Grab Input"));
2137     gtk_menu_item_set_accel_path(GTK_MENU_ITEM(s->grab_item),
2138                                  "<QEMU>/View/Grab Input");
2139     gtk_accel_map_add_entry("<QEMU>/View/Grab Input", GDK_KEY_g,
2140                             HOTKEY_MODIFIERS);
2141     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->grab_item);
2142 
2143     separator = gtk_separator_menu_item_new();
2144     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2145 
2146     /* gfx */
2147     for (vc = 0;; vc++) {
2148         con = qemu_console_lookup_by_index(vc);
2149         if (!con) {
2150             break;
2151         }
2152         group = gd_vc_gfx_init(s, &s->vc[vc], con,
2153                                vc, group, view_menu);
2154         s->nb_vcs++;
2155     }
2156 
2157 #if defined(CONFIG_VTE)
2158     /* vte */
2159     gd_vcs_init(s, group, view_menu);
2160 #endif
2161 
2162     separator = gtk_separator_menu_item_new();
2163     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), separator);
2164 
2165     s->show_tabs_item = gtk_check_menu_item_new_with_mnemonic(_("Show _Tabs"));
2166     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->show_tabs_item);
2167 
2168     s->untabify_item = gtk_menu_item_new_with_mnemonic(_("Detach Tab"));
2169     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->untabify_item);
2170 
2171     s->show_menubar_item = gtk_check_menu_item_new_with_mnemonic(
2172             _("Show Menubar"));
2173     gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(s->show_menubar_item),
2174                                    TRUE);
2175     gtk_accel_group_connect(s->accel_group, GDK_KEY_m, HOTKEY_MODIFIERS, 0,
2176             g_cclosure_new_swap(G_CALLBACK(gd_accel_show_menubar), s, NULL));
2177     gtk_accel_label_set_accel(
2178             GTK_ACCEL_LABEL(gtk_bin_get_child(GTK_BIN(s->show_menubar_item))),
2179             GDK_KEY_m, HOTKEY_MODIFIERS);
2180     gtk_menu_shell_append(GTK_MENU_SHELL(view_menu), s->show_menubar_item);
2181 
2182     return view_menu;
2183 }
2184 
2185 static void gd_create_menus(GtkDisplayState *s)
2186 {
2187     GtkSettings *settings;
2188 
2189     s->accel_group = gtk_accel_group_new();
2190     s->machine_menu = gd_create_menu_machine(s);
2191     s->view_menu = gd_create_menu_view(s);
2192 
2193     s->machine_menu_item = gtk_menu_item_new_with_mnemonic(_("_Machine"));
2194     gtk_menu_item_set_submenu(GTK_MENU_ITEM(s->machine_menu_item),
2195                               s->machine_menu);
2196     gtk_menu_shell_append(GTK_MENU_SHELL(s->menu_bar), s->machine_menu_item);
2197 
2198     s->view_menu_item = gtk_menu_item_new_with_mnemonic(_("_View"));
2199     gtk_menu_item_set_submenu(GTK_MENU_ITEM(s->view_menu_item), s->view_menu);
2200     gtk_menu_shell_append(GTK_MENU_SHELL(s->menu_bar), s->view_menu_item);
2201 
2202     g_object_set_data(G_OBJECT(s->window), "accel_group", s->accel_group);
2203     gtk_window_add_accel_group(GTK_WINDOW(s->window), s->accel_group);
2204 
2205     /* Disable the default "F10" menu shortcut. */
2206     settings = gtk_widget_get_settings(s->window);
2207     g_object_set(G_OBJECT(settings), "gtk-menu-bar-accel", "", NULL);
2208 }
2209 
2210 
2211 static gboolean gtkinit;
2212 
2213 static void gtk_display_init(DisplayState *ds, DisplayOptions *opts)
2214 {
2215     VirtualConsole *vc;
2216 
2217     GtkDisplayState *s = g_malloc0(sizeof(*s));
2218     GdkDisplay *window_display;
2219     GtkIconTheme *theme;
2220 
2221     if (!gtkinit) {
2222         fprintf(stderr, "gtk initialization failed\n");
2223         exit(1);
2224     }
2225     assert(opts->type == DISPLAY_TYPE_GTK);
2226     s->opts = opts;
2227 
2228     theme = gtk_icon_theme_get_default();
2229     gtk_icon_theme_prepend_search_path(theme, CONFIG_QEMU_ICONDIR);
2230     g_set_prgname("qemu");
2231 
2232     s->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
2233     s->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
2234     s->notebook = gtk_notebook_new();
2235     s->menu_bar = gtk_menu_bar_new();
2236 
2237     s->free_scale = FALSE;
2238 
2239     /* Mostly LC_MESSAGES only. See early_gtk_display_init() for details. For
2240      * LC_CTYPE, we need to make sure that non-ASCII characters are considered
2241      * printable, but without changing any of the character classes to make
2242      * sure that we don't accidentally break implicit assumptions.  */
2243     setlocale(LC_MESSAGES, "");
2244     setlocale(LC_CTYPE, "C.UTF-8");
2245     bindtextdomain("qemu", CONFIG_QEMU_LOCALEDIR);
2246     bind_textdomain_codeset("qemu", "UTF-8");
2247     textdomain("qemu");
2248 
2249     window_display = gtk_widget_get_display(s->window);
2250     if (s->opts->has_show_cursor && s->opts->show_cursor) {
2251         s->null_cursor = NULL; /* default pointer */
2252     } else {
2253         s->null_cursor = gdk_cursor_new_for_display(window_display,
2254                                                     GDK_BLANK_CURSOR);
2255     }
2256 
2257     s->mouse_mode_notifier.notify = gd_mouse_mode_change;
2258     qemu_add_mouse_mode_change_notifier(&s->mouse_mode_notifier);
2259     qemu_add_vm_change_state_handler(gd_change_runstate, s);
2260 
2261     gtk_window_set_icon_name(GTK_WINDOW(s->window), "qemu");
2262 
2263     gd_create_menus(s);
2264 
2265     gd_connect_signals(s);
2266 
2267     gtk_notebook_set_show_tabs(GTK_NOTEBOOK(s->notebook), FALSE);
2268     gtk_notebook_set_show_border(GTK_NOTEBOOK(s->notebook), FALSE);
2269 
2270     gd_update_caption(s);
2271 
2272     gtk_box_pack_start(GTK_BOX(s->vbox), s->menu_bar, FALSE, TRUE, 0);
2273     gtk_box_pack_start(GTK_BOX(s->vbox), s->notebook, TRUE, TRUE, 0);
2274 
2275     gtk_container_add(GTK_CONTAINER(s->window), s->vbox);
2276 
2277     gtk_widget_show_all(s->window);
2278 
2279     vc = gd_vc_find_current(s);
2280     gtk_widget_set_sensitive(s->view_menu, vc != NULL);
2281 #ifdef CONFIG_VTE
2282     gtk_widget_set_sensitive(s->copy_item,
2283                              vc && vc->type == GD_VC_VTE);
2284 #endif
2285 
2286     if (opts->has_full_screen &&
2287         opts->full_screen) {
2288         gtk_menu_item_activate(GTK_MENU_ITEM(s->full_screen_item));
2289     }
2290     if (opts->u.gtk.has_grab_on_hover &&
2291         opts->u.gtk.grab_on_hover) {
2292         gtk_menu_item_activate(GTK_MENU_ITEM(s->grab_on_hover_item));
2293     }
2294 }
2295 
2296 static void early_gtk_display_init(DisplayOptions *opts)
2297 {
2298     /* The QEMU code relies on the assumption that it's always run in
2299      * the C locale. Therefore it is not prepared to deal with
2300      * operations that produce different results depending on the
2301      * locale, such as printf's formatting of decimal numbers, and
2302      * possibly others.
2303      *
2304      * Since GTK+ calls setlocale() by default -importing the locale
2305      * settings from the environment- we must prevent it from doing so
2306      * using gtk_disable_setlocale().
2307      *
2308      * QEMU's GTK+ UI, however, _does_ have translations for some of
2309      * the menu items. As a trade-off between a functionally correct
2310      * QEMU and a fully internationalized UI we support importing
2311      * LC_MESSAGES from the environment (see the setlocale() call
2312      * earlier in this file). This allows us to display translated
2313      * messages leaving everything else untouched.
2314      */
2315     gtk_disable_setlocale();
2316     gtkinit = gtk_init_check(NULL, NULL);
2317     if (!gtkinit) {
2318         /* don't exit yet, that'll break -help */
2319         return;
2320     }
2321 
2322     assert(opts->type == DISPLAY_TYPE_GTK);
2323     if (opts->has_gl && opts->gl != DISPLAYGL_MODE_OFF) {
2324 #if defined(CONFIG_OPENGL)
2325 #if defined(CONFIG_GTK_GL) && defined(GDK_WINDOWING_WAYLAND)
2326         if (GDK_IS_WAYLAND_DISPLAY(gdk_display_get_default())) {
2327             gtk_use_gl_area = true;
2328             gtk_gl_area_init();
2329         } else
2330 #endif
2331         {
2332             DisplayGLMode mode = opts->has_gl ? opts->gl : DISPLAYGL_MODE_ON;
2333             gtk_egl_init(mode);
2334         }
2335 #endif
2336     }
2337 
2338     keycode_map = gd_get_keymap(&keycode_maplen);
2339 
2340 #if defined(CONFIG_VTE)
2341     type_register(&char_gd_vc_type_info);
2342 #endif
2343 }
2344 
2345 static QemuDisplay qemu_display_gtk = {
2346     .type       = DISPLAY_TYPE_GTK,
2347     .early_init = early_gtk_display_init,
2348     .init       = gtk_display_init,
2349 };
2350 
2351 static void register_gtk(void)
2352 {
2353     qemu_display_register(&qemu_display_gtk);
2354 }
2355 
2356 type_init(register_gtk);
2357