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godot/platform/linuxbsd/x11/display_server_x11.h
Rémi Verschelde 2f33c2b20e
Merge pull request #81439 from Setadokalo/clipboard_image 
Implement `clipboard_get`/`has_image` for X11
2023-10-20 15:06:42 +02:00

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/**************************************************************************/
/* display_server_x11.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef DISPLAY_SERVER_X11_H
#define DISPLAY_SERVER_X11_H
#ifdef X11_ENABLED
#include "joypad_linux.h"
#include "core/input/input.h"
#include "core/os/mutex.h"
#include "core/os/thread.h"
#include "core/templates/local_vector.h"
#include "drivers/alsa/audio_driver_alsa.h"
#include "drivers/alsamidi/midi_driver_alsamidi.h"
#include "drivers/pulseaudio/audio_driver_pulseaudio.h"
#include "drivers/unix/os_unix.h"
#include "servers/audio_server.h"
#include "servers/display_server.h"
#include "servers/rendering/renderer_compositor.h"
#include "servers/rendering_server.h"
#if defined(SPEECHD_ENABLED)
#include "tts_linux.h"
#endif
#if defined(GLES3_ENABLED)
#include "x11/gl_manager_x11.h"
#include "x11/gl_manager_x11_egl.h"
#endif
#if defined(VULKAN_ENABLED)
#include "x11/vulkan_context_x11.h"
#include "drivers/vulkan/rendering_device_vulkan.h"
#endif
#if defined(DBUS_ENABLED)
#include "freedesktop_portal_desktop.h"
#include "freedesktop_screensaver.h"
#endif
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#ifdef SOWRAP_ENABLED
#include "x11/dynwrappers/xlib-so_wrap.h"
#include "x11/dynwrappers/xcursor-so_wrap.h"
#include "x11/dynwrappers/xext-so_wrap.h"
#include "x11/dynwrappers/xinerama-so_wrap.h"
#include "x11/dynwrappers/xinput2-so_wrap.h"
#include "x11/dynwrappers/xrandr-so_wrap.h"
#include "x11/dynwrappers/xrender-so_wrap.h"
#include "xkbcommon-so_wrap.h"
#else
#include <X11/XKBlib.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xcursor/Xcursor.h>
#include <X11/extensions/XInput2.h>
#include <X11/extensions/Xext.h>
#include <X11/extensions/Xinerama.h>
#include <X11/extensions/Xrandr.h>
#include <X11/extensions/Xrender.h>
#include <X11/extensions/shape.h>
#ifdef XKB_ENABLED
#include <xkbcommon/xkbcommon-compose.h>
#include <xkbcommon/xkbcommon-keysyms.h>
#include <xkbcommon/xkbcommon.h>
#endif
#endif
typedef struct _xrr_monitor_info {
Atom name;
Bool primary = false;
Bool automatic = false;
int noutput = 0;
int x = 0;
int y = 0;
int width = 0;
int height = 0;
int mwidth = 0;
int mheight = 0;
RROutput *outputs = nullptr;
} xrr_monitor_info;
#undef CursorShape
class DisplayServerX11 : public DisplayServer {
// No need to register with GDCLASS, it's platform-specific and nothing is added.
_THREAD_SAFE_CLASS_
Atom wm_delete;
Atom xdnd_enter;
Atom xdnd_position;
Atom xdnd_status;
Atom xdnd_action_copy;
Atom xdnd_drop;
Atom xdnd_finished;
Atom xdnd_selection;
Atom xdnd_aware;
Atom requested = None;
int xdnd_version = 5;
#if defined(GLES3_ENABLED)
GLManager_X11 *gl_manager = nullptr;
GLManagerEGL_X11 *gl_manager_egl = nullptr;
#endif
#if defined(VULKAN_ENABLED)
VulkanContextX11 *context_vulkan = nullptr;
RenderingDeviceVulkan *rendering_device_vulkan = nullptr;
#endif
#if defined(DBUS_ENABLED)
FreeDesktopScreenSaver *screensaver = nullptr;
bool keep_screen_on = false;
#endif
#ifdef SPEECHD_ENABLED
TTS_Linux *tts = nullptr;
#endif
#if defined(DBUS_ENABLED)
FreeDesktopPortalDesktop *portal_desktop = nullptr;
#endif
struct WindowData {
Window x11_window;
Window x11_xim_window;
Window parent;
::XIC xic;
bool ime_active = false;
bool ime_in_progress = false;
bool ime_suppress_next_keyup = false;
#ifdef XKB_ENABLED
xkb_compose_state *xkb_state = nullptr;
#endif
Size2i min_size;
Size2i max_size;
Point2i position;
Size2i size;
Callable rect_changed_callback;
Callable event_callback;
Callable input_event_callback;
Callable input_text_callback;
Callable drop_files_callback;
Vector<Vector2> mpath;
WindowID transient_parent = INVALID_WINDOW_ID;
HashSet<WindowID> transient_children;
ObjectID instance_id;
bool no_focus = false;
//better to guess on the fly, given WM can change it
//WindowMode mode;
bool fullscreen = false; //OS can't exit from this mode
bool exclusive_fullscreen = false;
bool on_top = false;
bool borderless = false;
bool resize_disabled = false;
Vector2i last_position_before_fs;
bool focused = true;
bool minimized = false;
bool maximized = false;
bool is_popup = false;
bool layered_window = false;
bool mpass = false;
Rect2i parent_safe_rect;
unsigned int focus_order = 0;
};
Point2i im_selection;
String im_text;
#ifdef XKB_ENABLED
bool xkb_loaded_v05p = false;
bool xkb_loaded_v08p = false;
xkb_context *xkb_ctx = nullptr;
xkb_compose_table *dead_tbl = nullptr;
#endif
HashMap<WindowID, WindowData> windows;
unsigned int last_mouse_monitor_mask = 0;
uint64_t time_since_popup = 0;
List<WindowID> popup_list;
WindowID window_mouseover_id = INVALID_WINDOW_ID;
WindowID last_focused_window = INVALID_WINDOW_ID;
WindowID window_id_counter = MAIN_WINDOW_ID;
WindowID _create_window(WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Rect2i &p_rect);
String internal_clipboard;
String internal_clipboard_primary;
Window xdnd_source_window = 0;
::Display *x11_display;
char *xmbstring = nullptr;
int xmblen = 0;
unsigned long last_timestamp = 0;
::Time last_keyrelease_time = 0;
::XIM xim;
::XIMStyle xim_style;
static int _xim_preedit_start_callback(::XIM xim, ::XPointer client_data,
::XPointer call_data);
static void _xim_preedit_done_callback(::XIM xim, ::XPointer client_data,
::XPointer call_data);
static void _xim_preedit_draw_callback(::XIM xim, ::XPointer client_data,
::XIMPreeditDrawCallbackStruct *call_data);
static void _xim_preedit_caret_callback(::XIM xim, ::XPointer client_data,
::XIMPreeditCaretCallbackStruct *call_data);
static void _xim_destroy_callback(::XIM im, ::XPointer client_data,
::XPointer call_data);
Point2i last_mouse_pos;
bool last_mouse_pos_valid = false;
Point2i last_click_pos = Point2i(-100, -100);
uint64_t last_click_ms = 0;
MouseButton last_click_button_index = MouseButton::NONE;
BitField<MouseButtonMask> last_button_state;
bool app_focused = false;
uint64_t time_since_no_focus = 0;
struct {
int opcode;
Vector<int> touch_devices;
HashMap<int, Vector2> absolute_devices;
HashMap<int, Vector2> pen_pressure_range;
HashMap<int, Vector2> pen_tilt_x_range;
HashMap<int, Vector2> pen_tilt_y_range;
HashMap<int, bool> pen_inverted_devices;
XIEventMask all_event_mask;
HashMap<int, Vector2> state;
double pressure;
bool pressure_supported;
bool pen_inverted;
Vector2 tilt;
Vector2 mouse_pos_to_filter;
Vector2 relative_motion;
Vector2 raw_pos;
Vector2 old_raw_pos;
::Time last_relative_time;
} xi;
bool _refresh_device_info();
Rect2i _screen_get_rect(int p_screen) const;
BitField<MouseButtonMask> _get_mouse_button_state(MouseButton p_x11_button, int p_x11_type);
void _get_key_modifier_state(unsigned int p_x11_state, Ref<InputEventWithModifiers> state);
void _flush_mouse_motion();
MouseMode mouse_mode = MOUSE_MODE_VISIBLE;
Point2i center;
void _handle_key_event(WindowID p_window, XKeyEvent *p_event, LocalVector<XEvent> &p_events, uint32_t &p_event_index, bool p_echo = false);
Atom _process_selection_request_target(Atom p_target, Window p_requestor, Atom p_property, Atom p_selection) const;
void _handle_selection_request_event(XSelectionRequestEvent *p_event) const;
void _update_window_mouse_passthrough(WindowID p_window);
String _clipboard_get_impl(Atom p_source, Window x11_window, Atom target) const;
String _clipboard_get(Atom p_source, Window x11_window) const;
Atom _clipboard_get_image_target(Atom p_source, Window x11_window) const;
void _clipboard_transfer_ownership(Atom p_source, Window x11_window) const;
bool do_mouse_warp = false;
const char *cursor_theme = nullptr;
int cursor_size = 0;
XcursorImage *cursor_img[CURSOR_MAX];
Cursor cursors[CURSOR_MAX];
Cursor null_cursor;
CursorShape current_cursor = CURSOR_ARROW;
HashMap<CursorShape, Vector<Variant>> cursors_cache;
String rendering_driver;
void set_wm_fullscreen(bool p_enabled);
void set_wm_above(bool p_enabled);
typedef xrr_monitor_info *(*xrr_get_monitors_t)(Display *dpy, Window window, Bool get_active, int *nmonitors);
typedef void (*xrr_free_monitors_t)(xrr_monitor_info *monitors);
xrr_get_monitors_t xrr_get_monitors = nullptr;
xrr_free_monitors_t xrr_free_monitors = nullptr;
void *xrandr_handle = nullptr;
bool xrandr_ext_ok = true;
bool xinerama_ext_ok = true;
bool xshaped_ext_ok = true;
struct Property {
unsigned char *data;
int format, nitems;
Atom type;
};
static Property _read_property(Display *p_display, Window p_window, Atom p_property);
void _update_real_mouse_position(const WindowData &wd);
bool _window_maximize_check(WindowID p_window, const char *p_atom_name) const;
bool _window_fullscreen_check(WindowID p_window) const;
bool _window_minimize_check(WindowID p_window) const;
void _validate_mode_on_map(WindowID p_window);
void _update_size_hints(WindowID p_window);
void _set_wm_fullscreen(WindowID p_window, bool p_enabled, bool p_exclusive);
void _set_wm_maximized(WindowID p_window, bool p_enabled);
void _set_wm_minimized(WindowID p_window, bool p_enabled);
void _update_context(WindowData &wd);
Context context = CONTEXT_ENGINE;
WindowID _get_focused_window_or_popup() const;
void _send_window_event(const WindowData &wd, WindowEvent p_event);
static void _dispatch_input_events(const Ref<InputEvent> &p_event);
void _dispatch_input_event(const Ref<InputEvent> &p_event);
mutable Mutex events_mutex;
Thread events_thread;
SafeFlag events_thread_done;
LocalVector<XEvent> polled_events;
static void _poll_events_thread(void *ud);
bool _wait_for_events() const;
void _poll_events();
void _check_pending_events(LocalVector<XEvent> &r_events);
static Bool _predicate_all_events(Display *display, XEvent *event, XPointer arg);
static Bool _predicate_clipboard_selection(Display *display, XEvent *event, XPointer arg);
static Bool _predicate_clipboard_incr(Display *display, XEvent *event, XPointer arg);
static Bool _predicate_clipboard_save_targets(Display *display, XEvent *event, XPointer arg);
protected:
void _window_changed(XEvent *event);
public:
bool mouse_process_popups();
void popup_open(WindowID p_window);
void popup_close(WindowID p_window);
virtual bool has_feature(Feature p_feature) const override;
virtual String get_name() const override;
#ifdef SPEECHD_ENABLED
virtual bool tts_is_speaking() const override;
virtual bool tts_is_paused() const override;
virtual TypedArray<Dictionary> tts_get_voices() const override;
virtual void tts_speak(const String &p_text, const String &p_voice, int p_volume = 50, float p_pitch = 1.f, float p_rate = 1.f, int p_utterance_id = 0, bool p_interrupt = false) override;
virtual void tts_pause() override;
virtual void tts_resume() override;
virtual void tts_stop() override;
#endif
#if defined(DBUS_ENABLED)
virtual bool is_dark_mode_supported() const override;
virtual bool is_dark_mode() const override;
virtual Error file_dialog_show(const String &p_title, const String &p_current_directory, const String &p_filename, bool p_show_hidden, FileDialogMode p_mode, const Vector<String> &p_filters, const Callable &p_callback) override;
#endif
virtual void mouse_set_mode(MouseMode p_mode) override;
virtual MouseMode mouse_get_mode() const override;
virtual void warp_mouse(const Point2i &p_position) override;
virtual Point2i mouse_get_position() const override;
virtual BitField<MouseButtonMask> mouse_get_button_state() const override;
virtual void clipboard_set(const String &p_text) override;
virtual String clipboard_get() const override;
virtual Ref<Image> clipboard_get_image() const override;
virtual bool clipboard_has_image() const override;
virtual void clipboard_set_primary(const String &p_text) override;
virtual String clipboard_get_primary() const override;
virtual int get_screen_count() const override;
virtual int get_primary_screen() const override;
virtual int get_keyboard_focus_screen() const override;
virtual Point2i screen_get_position(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
virtual Size2i screen_get_size(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
virtual Rect2i screen_get_usable_rect(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
virtual int screen_get_dpi(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
virtual float screen_get_refresh_rate(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
virtual Color screen_get_pixel(const Point2i &p_position) const override;
virtual Ref<Image> screen_get_image(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
#if defined(DBUS_ENABLED)
virtual void screen_set_keep_on(bool p_enable) override;
virtual bool screen_is_kept_on() const override;
#endif
virtual Vector<DisplayServer::WindowID> get_window_list() const override;
virtual WindowID create_sub_window(WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Rect2i &p_rect = Rect2i()) override;
virtual void show_window(WindowID p_id) override;
virtual void delete_sub_window(WindowID p_id) override;
virtual WindowID window_get_active_popup() const override;
virtual void window_set_popup_safe_rect(WindowID p_window, const Rect2i &p_rect) override;
virtual Rect2i window_get_popup_safe_rect(WindowID p_window) const override;
virtual WindowID get_window_at_screen_position(const Point2i &p_position) const override;
virtual int64_t window_get_native_handle(HandleType p_handle_type, WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void window_attach_instance_id(ObjectID p_instance, WindowID p_window = MAIN_WINDOW_ID) override;
virtual ObjectID window_get_attached_instance_id(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void window_set_title(const String &p_title, WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_set_mouse_passthrough(const Vector<Vector2> &p_region, WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_set_rect_changed_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_set_window_event_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_set_input_event_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_set_input_text_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_set_drop_files_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID) override;
virtual int window_get_current_screen(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void window_set_current_screen(int p_screen, WindowID p_window = MAIN_WINDOW_ID) override;
virtual Point2i window_get_position(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual Point2i window_get_position_with_decorations(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void window_set_position(const Point2i &p_position, WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_set_max_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override;
virtual Size2i window_get_max_size(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void gl_window_make_current(DisplayServer::WindowID p_window_id) override;
virtual void window_set_transient(WindowID p_window, WindowID p_parent) override;
virtual void window_set_min_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override;
virtual Size2i window_get_min_size(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void window_set_size(const Size2i p_size, WindowID p_window = MAIN_WINDOW_ID) override;
virtual Size2i window_get_size(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual Size2i window_get_size_with_decorations(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void window_set_mode(WindowMode p_mode, WindowID p_window = MAIN_WINDOW_ID) override;
virtual WindowMode window_get_mode(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual bool window_is_maximize_allowed(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void window_set_flag(WindowFlags p_flag, bool p_enabled, WindowID p_window = MAIN_WINDOW_ID) override;
virtual bool window_get_flag(WindowFlags p_flag, WindowID p_window = MAIN_WINDOW_ID) const override;
virtual void window_request_attention(WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_move_to_foreground(WindowID p_window = MAIN_WINDOW_ID) override;
virtual bool window_is_focused(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual bool window_can_draw(WindowID p_window = MAIN_WINDOW_ID) const override;
virtual bool can_any_window_draw() const override;
virtual void window_set_ime_active(const bool p_active, WindowID p_window = MAIN_WINDOW_ID) override;
virtual void window_set_ime_position(const Point2i &p_pos, WindowID p_window = MAIN_WINDOW_ID) override;
virtual Point2i ime_get_selection() const override;
virtual String ime_get_text() const override;
virtual void window_set_vsync_mode(DisplayServer::VSyncMode p_vsync_mode, WindowID p_window = MAIN_WINDOW_ID) override;
virtual DisplayServer::VSyncMode window_get_vsync_mode(WindowID p_vsync_mode) const override;
virtual void cursor_set_shape(CursorShape p_shape) override;
virtual CursorShape cursor_get_shape() const override;
virtual void cursor_set_custom_image(const Ref<Resource> &p_cursor, CursorShape p_shape, const Vector2 &p_hotspot) override;
virtual int keyboard_get_layout_count() const override;
virtual int keyboard_get_current_layout() const override;
virtual void keyboard_set_current_layout(int p_index) override;
virtual String keyboard_get_layout_language(int p_index) const override;
virtual String keyboard_get_layout_name(int p_index) const override;
virtual Key keyboard_get_keycode_from_physical(Key p_keycode) const override;
virtual Key keyboard_get_label_from_physical(Key p_keycode) const override;
virtual void process_events() override;
virtual void release_rendering_thread() override;
virtual void make_rendering_thread() override;
virtual void swap_buffers() override;
virtual void set_context(Context p_context) override;
virtual void set_native_icon(const String &p_filename) override;
virtual void set_icon(const Ref<Image> &p_icon) override;
static DisplayServer *create_func(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, int p_screen, Error &r_error);
static Vector<String> get_rendering_drivers_func();
static void register_x11_driver();
DisplayServerX11(const String &p_rendering_driver, WindowMode p_mode, VSyncMode p_vsync_mode, uint32_t p_flags, const Vector2i *p_position, const Vector2i &p_resolution, int p_screen, Error &r_error);
~DisplayServerX11();
};
#endif // X11_ENABLED
#endif // DISPLAY_SERVER_X11_H
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