/*

Simple DirectMedia Layer

This software is provided 'as-is', without any express or implied

warranty. In no event will the authors be held liable for any damages

arising from the use of this software.

Permission is granted to anyone to use this software for any purpose,

including commercial applications, and to alter it and redistribute it

freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not

claim that you wrote the original software. If you use this software

in a product, an acknowledgment in the product documentation would be

appreciated but is not required.

2. Altered source versions must be plainly marked as such, and must not be

misrepresented as being the original software.

3. This notice may not be removed or altered from any source distribution.

*/

#include "../../SDL_internal.h"

#if SDL_VIDEO_DRIVER_WAYLAND && SDL_VIDEO_OPENGL_EGL

#include "../SDL_sysvideo.h"

#include "../../events/SDL_windowevents_c.h"

#include "../SDL_egl_c.h"

#include "SDL_waylandwindow.h"

#include "SDL_waylandvideo.h"

#include "SDL_waylandtouch.h"

#include "SDL_waylanddyn.h"

static void

handle_ping(void *data, struct wl_shell_surface *shell_surface,

uint32_t serial)

{

wl_shell_surface_pong(shell_surface, serial);

}

static void

handle_configure(void *data, struct wl_shell_surface *shell_surface,

uint32_t edges, int32_t width, int32_t height)

{

SDL_WindowData *wind = (SDL_WindowData *)data;

SDL_Window *window = wind->sdlwindow;

struct wl_region *region;

/* wl_shell_surface spec states that this is a suggestion.

Ignore if less than or greater than max/min size. */

if (width == 0 || height == 0) {

return;

}

if (!(window->flags & SDL_WINDOW_FULLSCREEN)) {

if ((window->flags & SDL_WINDOW_RESIZABLE)) {

if (window->max_w > 0) {

width = SDL_min(width, window->max_w);

}

width = SDL_max(width, window->min_w);

if (window->max_h > 0) {

height = SDL_min(height, window->max_h);

}

height = SDL_max(height, window->min_h);

} else {

return;

}

}

if (width == window->w && height == window->h) {

return;

}

window->w = width;

window->h = height;

WAYLAND_wl_egl_window_resize(wind->egl_window, window->w, window->h, 0, 0);

region = wl_compositor_create_region(wind->waylandData->compositor);

wl_region_add(region, 0, 0, window->w, window->h);

wl_surface_set_opaque_region(wind->surface, region);

wl_region_destroy(region);

SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, window->w, window->h);

}

static void

handle_popup_done(void *data, struct wl_shell_surface *shell_surface)

{

}

static const struct wl_shell_surface_listener shell_surface_listener = {

handle_ping,

handle_configure,

handle_popup_done

};

#ifdef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH

static void

handle_onscreen_visibility(void *data,

struct qt_extended_surface *qt_extended_surface, int32_t visible)

{

}

static void

handle_set_generic_property(void *data,

struct qt_extended_surface *qt_extended_surface, const char *name,

struct wl_array *value)

{

}

static void

handle_close(void *data, struct qt_extended_surface *qt_extended_surface)

{

SDL_WindowData *window = (SDL_WindowData *)data;

SDL_SendWindowEvent(window->sdlwindow, SDL_WINDOWEVENT_CLOSE, 0, 0);

}

static const struct qt_extended_surface_listener extended_surface_listener = {

handle_onscreen_visibility,

handle_set_generic_property,

handle_close,

};

#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */

SDL_bool

Wayland_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

const Uint32 version = ((((Uint32) info->version.major) * 1000000) +

(((Uint32) info->version.minor) * 10000) +

(((Uint32) info->version.patch)));

/* Before 2.0.6, it was possible to build an SDL with Wayland support

(SDL_SysWMinfo will be large enough to hold Wayland info), but build

your app against SDL headers that didn't have Wayland support

(SDL_SysWMinfo could be smaller than Wayland needs. This would lead

to an app properly using SDL_GetWindowWMInfo() but we'd accidentally

overflow memory on the stack or heap. To protect against this, we've

padded out the struct unconditionally in the headers and Wayland will

just return an error for older apps using this function. Those apps

will need to be recompiled against newer headers or not use Wayland,

maybe by forcing SDL_VIDEODRIVER=x11. */

if (version < 2000006) {

info->subsystem = SDL_SYSWM_UNKNOWN;

return SDL_FALSE;

}

info->info.wl.display = data->waylandData->display;

info->info.wl.surface = data->surface;

info->info.wl.shell_surface = data->shell_surface;

info->subsystem = SDL_SYSWM_WAYLAND;

return SDL_TRUE;

}

int

Wayland_SetWindowHitTest(SDL_Window *window, SDL_bool enabled)

{

return 0; /* just succeed, the real work is done elsewhere. */

}

void Wayland_ShowWindow(_THIS, SDL_Window *window)

{

SDL_WindowData *wind = window->driverdata;

if (window->flags & SDL_WINDOW_FULLSCREEN)

wl_shell_surface_set_fullscreen(wind->shell_surface,

WL_SHELL_SURFACE_FULLSCREEN_METHOD_DEFAULT,

0, (struct wl_output *)window->fullscreen_mode.driverdata);

else

wl_shell_surface_set_toplevel(wind->shell_surface);

WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );

}

static void SDLCALL

QtExtendedSurface_OnHintChanged(void *userdata, const char *name,

const char *oldValue, const char *newValue)

{

struct qt_extended_surface *qt_extended_surface = userdata;

if (name == NULL) {

return;

}

if (strcmp(name, SDL_HINT_QTWAYLAND_CONTENT_ORIENTATION) == 0) {

int32_t orientation = QT_EXTENDED_SURFACE_ORIENTATION_PRIMARYORIENTATION;

if (newValue != NULL) {

if (strcmp(newValue, "portrait") == 0) {

orientation = QT_EXTENDED_SURFACE_ORIENTATION_PORTRAITORIENTATION;

} else if (strcmp(newValue, "landscape") == 0) {

orientation = QT_EXTENDED_SURFACE_ORIENTATION_LANDSCAPEORIENTATION;

} else if (strcmp(newValue, "inverted-portrait") == 0) {

orientation = QT_EXTENDED_SURFACE_ORIENTATION_INVERTEDPORTRAITORIENTATION;

} else if (strcmp(newValue, "inverted-landscape") == 0) {

orientation = QT_EXTENDED_SURFACE_ORIENTATION_INVERTEDLANDSCAPEORIENTATION;

}

}

qt_extended_surface_set_content_orientation(qt_extended_surface, orientation);

} else if (strcmp(name, SDL_HINT_QTWAYLAND_WINDOW_FLAGS) == 0) {

uint32_t flags = 0;

if (newValue != NULL) {

char *tmp = strdup(newValue);

char *saveptr = NULL;

char *flag = strtok_r(tmp, " ", &saveptr);

while (flag) {

if (strcmp(flag, "OverridesSystemGestures") == 0) {

flags |= QT_EXTENDED_SURFACE_WINDOWFLAG_OVERRIDESSYSTEMGESTURES;

} else if (strcmp(flag, "StaysOnTop") == 0) {

flags |= QT_EXTENDED_SURFACE_WINDOWFLAG_STAYSONTOP;

} else if (strcmp(flag, "BypassWindowManager") == 0) {

// See https://github.com/qtproject/qtwayland/commit/fb4267103d

flags |= 4 /* QT_EXTENDED_SURFACE_WINDOWFLAG_BYPASSWINDOWMANAGER */;

}

flag = strtok_r(NULL, " ", &saveptr);

}

free(tmp);

}

qt_extended_surface_set_window_flags(qt_extended_surface, flags);

}

}

static void QtExtendedSurface_Subscribe(struct qt_extended_surface *surface, const char *name)

{

SDL_AddHintCallback(name, QtExtendedSurface_OnHintChanged, surface);

}

static void QtExtendedSurface_Unsubscribe(struct qt_extended_surface *surface, const char *name)

{

SDL_DelHintCallback(name, QtExtendedSurface_OnHintChanged, surface);

}

#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */

void

Wayland_SetWindowFullscreen(_THIS, SDL_Window * window,

SDL_VideoDisplay * _display, SDL_bool fullscreen)

{

SDL_WindowData *wind = window->driverdata;

if (fullscreen)

wl_shell_surface_set_fullscreen(wind->shell_surface,

WL_SHELL_SURFACE_FULLSCREEN_METHOD_SCALE,

0, (struct wl_output *)_display->driverdata);

else

wl_shell_surface_set_toplevel(wind->shell_surface);

WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );

}

void

Wayland_RestoreWindow(_THIS, SDL_Window * window)

{

SDL_WindowData *wind = window->driverdata;

wl_shell_surface_set_toplevel(wind->shell_surface);

WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );

}

void

Wayland_MaximizeWindow(_THIS, SDL_Window * window)

{

SDL_WindowData *wind = window->driverdata;

wl_shell_surface_set_maximized(wind->shell_surface, NULL);

WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );

}

int Wayland_CreateWindow(_THIS, SDL_Window *window)

{

SDL_WindowData *data;

SDL_VideoData *c;

struct wl_region *region;

data = calloc(1, sizeof *data);

if (data == NULL)

return SDL_OutOfMemory();

c = _this->driverdata;

window->driverdata = data;

if (!(window->flags & SDL_WINDOW_OPENGL)) {

SDL_GL_LoadLibrary(NULL);

window->flags |= SDL_WINDOW_OPENGL;

}

if (window->x == SDL_WINDOWPOS_UNDEFINED) {

window->x = 0;

}

if (window->y == SDL_WINDOWPOS_UNDEFINED) {

window->y = 0;

}

data->waylandData = c;

data->sdlwindow = window;

data->surface =

wl_compositor_create_surface(c->compositor);

wl_surface_set_user_data(data->surface, data);

data->shell_surface = wl_shell_get_shell_surface(c->shell,

data->surface);

if (c->surface_extension) {

data->extended_surface = qt_surface_extension_get_extended_surface(

c->surface_extension, data->surface);

QtExtendedSurface_Subscribe(data->extended_surface, SDL_HINT_QTWAYLAND_CONTENT_ORIENTATION);

QtExtendedSurface_Subscribe(data->extended_surface, SDL_HINT_QTWAYLAND_WINDOW_FLAGS);

}

#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */

data->egl_window = WAYLAND_wl_egl_window_create(data->surface,

window->w, window->h);

/* Create the GLES window surface */

data->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType) data->egl_window);

if (data->egl_surface == EGL_NO_SURFACE) {

return SDL_SetError("failed to create a window surface");

}

if (data->shell_surface) {

wl_shell_surface_set_user_data(data->shell_surface, data);

wl_shell_surface_add_listener(data->shell_surface,

&shell_surface_listener, data);

}

#ifdef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH

if (data->extended_surface) {

qt_extended_surface_set_user_data(data->extended_surface, data);

qt_extended_surface_add_listener(data->extended_surface,

&extended_surface_listener, data);

}

#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */

region = wl_compositor_create_region(c->compositor);

wl_region_add(region, 0, 0, window->w, window->h);

wl_surface_set_opaque_region(data->surface, region);

wl_region_destroy(region);

if (c->relative_mouse_mode) {

Wayland_input_lock_pointer(c->input);

}

WAYLAND_wl_display_flush(c->display);

return 0;

}

void Wayland_SetWindowSize(_THIS, SDL_Window * window)

{

SDL_VideoData *data = _this->driverdata;

SDL_WindowData *wind = window->driverdata;

struct wl_region *region;

WAYLAND_wl_egl_window_resize(wind->egl_window, window->w, window->h, 0, 0);

region =wl_compositor_create_region(data->compositor);

wl_region_add(region, 0, 0, window->w, window->h);

wl_surface_set_opaque_region(wind->surface, region);

wl_region_destroy(region);

}

void Wayland_SetWindowTitle(_THIS, SDL_Window * window)

{

SDL_WindowData *wind = window->driverdata;

if (window->title != NULL) {

wl_shell_surface_set_title(wind->shell_surface, window->title);

}

WAYLAND_wl_display_flush( ((SDL_VideoData*)_this->driverdata)->display );

}

void Wayland_DestroyWindow(_THIS, SDL_Window *window)

{

SDL_VideoData *data = _this->driverdata;

SDL_WindowData *wind = window->driverdata;

if (data) {

SDL_EGL_DestroySurface(_this, wind->egl_surface);

WAYLAND_wl_egl_window_destroy(wind->egl_window);

if (wind->shell_surface)

wl_shell_surface_destroy(wind->shell_surface);

#ifdef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH

if (wind->extended_surface) {

QtExtendedSurface_Unsubscribe(wind->extended_surface, SDL_HINT_QTWAYLAND_CONTENT_ORIENTATION);

QtExtendedSurface_Unsubscribe(wind->extended_surface, SDL_HINT_QTWAYLAND_WINDOW_FLAGS);

#endif /* SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */

wl_surface_destroy(wind->surface);

SDL_free(wind);

WAYLAND_wl_display_flush(data->display);

}

window->driverdata = NULL;

}

#endif /* SDL_VIDEO_DRIVER_WAYLAND && SDL_VIDEO_OPENGL_EGL */

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