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test2/intern/ghost/intern/GHOST_SystemWayland.cpp

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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup GHOST
*/
#include "GHOST_SystemWayland.h"
#include "GHOST_Event.h"
#include "GHOST_EventButton.h"
#include "GHOST_EventCursor.h"
#include "GHOST_EventDragnDrop.h"
#include "GHOST_EventKey.h"
#include "GHOST_EventWheel.h"
#include "GHOST_TimerManager.h"
#include "GHOST_WindowManager.h"
#include "GHOST_ContextEGL.h"
#include <EGL/egl.h>
#include <wayland-egl.h>
#include <algorithm>
#include <atomic>
#include <stdexcept>
#include <thread>
#include <unordered_map>
#include <unordered_set>
#include "GHOST_WaylandCursorSettings.h"
#include <pointer-constraints-client-protocol.h>
#include <relative-pointer-client-protocol.h>
#include <wayland-cursor.h>
#include <xkbcommon/xkbcommon.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <unistd.h>
#include <cstring>
/* selected input event code defines from 'linux/input-event-codes.h'
* We include some of the button input event codes here, since the header is
* only available in more recent kernel versions. The event codes are used to
* to differentiate from which mouse button an event comes from.
*/
#define BTN_LEFT 0x110
#define BTN_RIGHT 0x111
#define BTN_MIDDLE 0x112
struct buffer_t {
void *data;
size_t size;
};
struct cursor_t {
bool visible;
struct wl_surface *surface = nullptr;
struct wl_buffer *buffer;
struct wl_cursor_image image;
struct buffer_t *file_buffer = nullptr;
struct wl_cursor_theme *theme = nullptr;
int size;
std::string theme_name;
// outputs on which the cursor is visible
std::unordered_set<const output_t *> outputs;
int scale = 1;
};
struct data_offer_t {
std::unordered_set<std::string> types;
uint32_t source_actions;
uint32_t dnd_action;
struct wl_data_offer *id;
std::atomic<bool> in_use;
struct {
int x, y;
} dnd;
};
struct data_source_t {
struct wl_data_source *data_source;
/** Last device that was active. */
uint32_t source_serial;
char *buffer_out;
};
struct key_repeat_payload_t {
GHOST_SystemWayland *system;
GHOST_IWindow *window;
GHOST_TKey key;
GHOST_TEventKeyData key_data;
};
struct input_t {
GHOST_SystemWayland *system;
std::string name;
struct wl_seat *seat;
struct wl_pointer *pointer = nullptr;
struct wl_keyboard *keyboard = nullptr;
uint32_t pointer_serial;
int x, y;
GHOST_Buttons buttons;
struct cursor_t cursor;
struct zwp_relative_pointer_v1 *relative_pointer;
struct zwp_locked_pointer_v1 *locked_pointer;
struct xkb_context *xkb_context;
struct xkb_state *xkb_state;
struct {
/* Key repetition in character per second. */
int32_t rate;
/* Time (milliseconds) after which to start repeating keys. */
int32_t delay;
/* Timer for key repeats. */
GHOST_ITimerTask *timer = nullptr;
} key_repeat;
struct wl_surface *focus_pointer = nullptr;
struct wl_surface *focus_keyboard = nullptr;
struct wl_data_device *data_device = nullptr;
struct data_offer_t *data_offer_dnd; /* Drag & Drop. */
struct data_offer_t *data_offer_copy_paste; /* Copy & Paste. */
struct data_source_t *data_source;
};
struct display_t {
GHOST_SystemWayland *system;
struct wl_display *display;
struct wl_compositor *compositor = nullptr;
struct xdg_wm_base *xdg_shell = nullptr;
struct zxdg_decoration_manager_v1 *xdg_decoration_manager = nullptr;
struct wl_shm *shm = nullptr;
std::vector<output_t *> outputs;
std::vector<input_t *> inputs;
struct {
std::string theme;
int size;
} cursor;
struct wl_data_device_manager *data_device_manager = nullptr;
struct zwp_relative_pointer_manager_v1 *relative_pointer_manager = nullptr;
struct zwp_pointer_constraints_v1 *pointer_constraints = nullptr;
std::vector<struct wl_surface *> os_surfaces;
std::vector<struct wl_egl_window *> os_egl_windows;
};
static GHOST_WindowManager *window_manager = nullptr;
static void display_destroy(display_t *d)
{
if (d->data_device_manager) {
wl_data_device_manager_destroy(d->data_device_manager);
}
for (output_t *output : d->outputs) {
wl_output_destroy(output->output);
delete output;
}
for (input_t *input : d->inputs) {
if (input->data_source) {
free(input->data_source->buffer_out);
if (input->data_source->data_source) {
wl_data_source_destroy(input->data_source->data_source);
}
delete input->data_source;
}
if (input->data_offer_copy_paste) {
wl_data_offer_destroy(input->data_offer_copy_paste->id);
delete input->data_offer_copy_paste;
}
if (input->data_device) {
wl_data_device_release(input->data_device);
}
if (input->pointer) {
if (input->cursor.file_buffer) {
munmap(input->cursor.file_buffer->data, input->cursor.file_buffer->size);
delete input->cursor.file_buffer;
}
if (input->cursor.surface) {
wl_surface_destroy(input->cursor.surface);
}
if (input->cursor.theme) {
wl_cursor_theme_destroy(input->cursor.theme);
}
if (input->pointer) {
wl_pointer_destroy(input->pointer);
}
}
if (input->keyboard) {
if (input->key_repeat.timer) {
delete static_cast<key_repeat_payload_t *>(input->key_repeat.timer->getUserData());
input->system->removeTimer(input->key_repeat.timer);
input->key_repeat.timer = nullptr;
}
wl_keyboard_destroy(input->keyboard);
}
if (input->xkb_state) {
xkb_state_unref(input->xkb_state);
}
if (input->xkb_context) {
xkb_context_unref(input->xkb_context);
}
wl_seat_destroy(input->seat);
delete input;
}
if (d->shm) {
wl_shm_destroy(d->shm);
}
if (d->relative_pointer_manager) {
zwp_relative_pointer_manager_v1_destroy(d->relative_pointer_manager);
}
if (d->pointer_constraints) {
zwp_pointer_constraints_v1_destroy(d->pointer_constraints);
}
for (wl_egl_window *os_egl_window : d->os_egl_windows) {
wl_egl_window_destroy(os_egl_window);
}
for (wl_surface *os_surface : d->os_surfaces) {
wl_surface_destroy(os_surface);
}
if (d->compositor) {
wl_compositor_destroy(d->compositor);
}
if (d->xdg_decoration_manager) {
zxdg_decoration_manager_v1_destroy(d->xdg_decoration_manager);
}
if (d->xdg_shell) {
xdg_wm_base_destroy(d->xdg_shell);
}
if (eglGetDisplay) {
::eglTerminate(eglGetDisplay(EGLNativeDisplayType(d->display)));
}
if (d->display) {
wl_display_disconnect(d->display);
}
delete d;
}
static GHOST_TKey xkb_map_gkey(const xkb_keysym_t &sym)
{
GHOST_TKey gkey;
if (sym >= XKB_KEY_0 && sym <= XKB_KEY_9) {
gkey = GHOST_TKey(sym);
}
else if (sym >= XKB_KEY_KP_0 && sym <= XKB_KEY_KP_9) {
gkey = GHOST_TKey(GHOST_kKeyNumpad0 + sym - XKB_KEY_KP_0);
}
else if (sym >= XKB_KEY_A && sym <= XKB_KEY_Z) {
gkey = GHOST_TKey(sym);
}
else if (sym >= XKB_KEY_a && sym <= XKB_KEY_z) {
gkey = GHOST_TKey(sym - XKB_KEY_a + XKB_KEY_A);
}
else if (sym >= XKB_KEY_F1 && sym <= XKB_KEY_F24) {
gkey = GHOST_TKey(GHOST_kKeyF1 + sym - XKB_KEY_F1);
}
else {
#define GXMAP(k, x, y) \
case x: \
k = y; \
break
switch (sym) {
GXMAP(gkey, XKB_KEY_BackSpace, GHOST_kKeyBackSpace);
GXMAP(gkey, XKB_KEY_Tab, GHOST_kKeyTab);
GXMAP(gkey, XKB_KEY_Linefeed, GHOST_kKeyLinefeed);
GXMAP(gkey, XKB_KEY_Clear, GHOST_kKeyClear);
GXMAP(gkey, XKB_KEY_Return, GHOST_kKeyEnter);
GXMAP(gkey, XKB_KEY_Escape, GHOST_kKeyEsc);
GXMAP(gkey, XKB_KEY_space, GHOST_kKeySpace);
GXMAP(gkey, XKB_KEY_apostrophe, GHOST_kKeyQuote);
GXMAP(gkey, XKB_KEY_comma, GHOST_kKeyComma);
GXMAP(gkey, XKB_KEY_minus, GHOST_kKeyMinus);
GXMAP(gkey, XKB_KEY_plus, GHOST_kKeyPlus);
GXMAP(gkey, XKB_KEY_period, GHOST_kKeyPeriod);
GXMAP(gkey, XKB_KEY_slash, GHOST_kKeySlash);
GXMAP(gkey, XKB_KEY_semicolon, GHOST_kKeySemicolon);
GXMAP(gkey, XKB_KEY_equal, GHOST_kKeyEqual);
GXMAP(gkey, XKB_KEY_bracketleft, GHOST_kKeyLeftBracket);
GXMAP(gkey, XKB_KEY_bracketright, GHOST_kKeyRightBracket);
GXMAP(gkey, XKB_KEY_backslash, GHOST_kKeyBackslash);
GXMAP(gkey, XKB_KEY_grave, GHOST_kKeyAccentGrave);
GXMAP(gkey, XKB_KEY_Shift_L, GHOST_kKeyLeftShift);
GXMAP(gkey, XKB_KEY_Shift_R, GHOST_kKeyRightShift);
GXMAP(gkey, XKB_KEY_Control_L, GHOST_kKeyLeftControl);
GXMAP(gkey, XKB_KEY_Control_R, GHOST_kKeyRightControl);
GXMAP(gkey, XKB_KEY_Alt_L, GHOST_kKeyLeftAlt);
GXMAP(gkey, XKB_KEY_Alt_R, GHOST_kKeyRightAlt);
GXMAP(gkey, XKB_KEY_Super_L, GHOST_kKeyOS);
GXMAP(gkey, XKB_KEY_Super_R, GHOST_kKeyOS);
GXMAP(gkey, XKB_KEY_Menu, GHOST_kKeyApp);
GXMAP(gkey, XKB_KEY_Caps_Lock, GHOST_kKeyCapsLock);
GXMAP(gkey, XKB_KEY_Num_Lock, GHOST_kKeyNumLock);
GXMAP(gkey, XKB_KEY_Scroll_Lock, GHOST_kKeyScrollLock);
GXMAP(gkey, XKB_KEY_Left, GHOST_kKeyLeftArrow);
GXMAP(gkey, XKB_KEY_Right, GHOST_kKeyRightArrow);
GXMAP(gkey, XKB_KEY_Up, GHOST_kKeyUpArrow);
GXMAP(gkey, XKB_KEY_Down, GHOST_kKeyDownArrow);
GXMAP(gkey, XKB_KEY_Print, GHOST_kKeyPrintScreen);
GXMAP(gkey, XKB_KEY_Pause, GHOST_kKeyPause);
GXMAP(gkey, XKB_KEY_Insert, GHOST_kKeyInsert);
GXMAP(gkey, XKB_KEY_Delete, GHOST_kKeyDelete);
GXMAP(gkey, XKB_KEY_Home, GHOST_kKeyHome);
GXMAP(gkey, XKB_KEY_End, GHOST_kKeyEnd);
GXMAP(gkey, XKB_KEY_Page_Up, GHOST_kKeyUpPage);
GXMAP(gkey, XKB_KEY_Page_Down, GHOST_kKeyDownPage);
GXMAP(gkey, XKB_KEY_KP_Decimal, GHOST_kKeyNumpadPeriod);
GXMAP(gkey, XKB_KEY_KP_Enter, GHOST_kKeyNumpadEnter);
GXMAP(gkey, XKB_KEY_KP_Add, GHOST_kKeyNumpadPlus);
GXMAP(gkey, XKB_KEY_KP_Subtract, GHOST_kKeyNumpadMinus);
GXMAP(gkey, XKB_KEY_KP_Multiply, GHOST_kKeyNumpadAsterisk);
GXMAP(gkey, XKB_KEY_KP_Divide, GHOST_kKeyNumpadSlash);
GXMAP(gkey, XKB_KEY_XF86AudioPlay, GHOST_kKeyMediaPlay);
GXMAP(gkey, XKB_KEY_XF86AudioStop, GHOST_kKeyMediaStop);
GXMAP(gkey, XKB_KEY_XF86AudioPrev, GHOST_kKeyMediaFirst);
GXMAP(gkey, XKB_KEY_XF86AudioNext, GHOST_kKeyMediaLast);
default:
GHOST_PRINT("unhandled key: " << std::hex << std::showbase << sym << std::dec << " ("
<< sym << ")" << std::endl);
gkey = GHOST_kKeyUnknown;
}
#undef GXMAP
}
return gkey;
}
static const int default_cursor_size = 24;
static const std::unordered_map<GHOST_TStandardCursor, std::string> cursors = {
{GHOST_kStandardCursorDefault, "left_ptr"},
{GHOST_kStandardCursorRightArrow, "right_ptr"},
{GHOST_kStandardCursorLeftArrow, "left_ptr"},
{GHOST_kStandardCursorInfo, ""},
{GHOST_kStandardCursorDestroy, ""},
{GHOST_kStandardCursorHelp, "question_arrow"},
{GHOST_kStandardCursorWait, "watch"},
{GHOST_kStandardCursorText, "xterm"},
{GHOST_kStandardCursorCrosshair, "crosshair"},
{GHOST_kStandardCursorCrosshairA, ""},
{GHOST_kStandardCursorCrosshairB, ""},
{GHOST_kStandardCursorCrosshairC, ""},
{GHOST_kStandardCursorPencil, ""},
{GHOST_kStandardCursorUpArrow, "sb_up_arrow"},
{GHOST_kStandardCursorDownArrow, "sb_down_arrow"},
{GHOST_kStandardCursorVerticalSplit, ""},
{GHOST_kStandardCursorHorizontalSplit, ""},
{GHOST_kStandardCursorEraser, ""},
{GHOST_kStandardCursorKnife, ""},
{GHOST_kStandardCursorEyedropper, ""},
{GHOST_kStandardCursorZoomIn, ""},
{GHOST_kStandardCursorZoomOut, ""},
{GHOST_kStandardCursorMove, "move"},
{GHOST_kStandardCursorNSEWScroll, ""},
{GHOST_kStandardCursorNSScroll, ""},
{GHOST_kStandardCursorEWScroll, ""},
{GHOST_kStandardCursorStop, ""},
{GHOST_kStandardCursorUpDown, "sb_v_double_arrow"},
{GHOST_kStandardCursorLeftRight, "sb_h_double_arrow"},
{GHOST_kStandardCursorTopSide, "top_side"},
{GHOST_kStandardCursorBottomSide, "bottom_side"},
{GHOST_kStandardCursorLeftSide, "left_side"},
{GHOST_kStandardCursorRightSide, "right_side"},
{GHOST_kStandardCursorTopLeftCorner, "top_left_corner"},
{GHOST_kStandardCursorTopRightCorner, "top_right_corner"},
{GHOST_kStandardCursorBottomRightCorner, "bottom_right_corner"},
{GHOST_kStandardCursorBottomLeftCorner, "bottom_left_corner"},
{GHOST_kStandardCursorCopy, "copy"},
};
static constexpr const char *mime_text_plain = "text/plain";
static constexpr const char *mime_text_utf8 = "text/plain;charset=utf-8";
static constexpr const char *mime_text_uri = "text/uri-list";
static const std::unordered_map<std::string, GHOST_TDragnDropTypes> mime_dnd = {
{mime_text_plain, GHOST_kDragnDropTypeString},
{mime_text_utf8, GHOST_kDragnDropTypeString},
{mime_text_uri, GHOST_kDragnDropTypeFilenames},
};
static const std::vector<std::string> mime_preference_order = {
mime_text_uri,
mime_text_utf8,
mime_text_plain,
};
static const std::vector<std::string> mime_send = {
"UTF8_STRING",
"COMPOUND_TEXT",
"TEXT",
"STRING",
"text/plain;charset=utf-8",
"text/plain",
};
/* -------------------------------------------------------------------- */
/** \name Interface Callbacks
*
* These callbacks are registered for Wayland interfaces and called when
* an event is received from the compositor.
* \{ */
static void relative_pointer_relative_motion(
void *data,
struct zwp_relative_pointer_v1 * /*zwp_relative_pointer_v1*/,
uint32_t /*utime_hi*/,
uint32_t /*utime_lo*/,
wl_fixed_t dx,
wl_fixed_t dy,
wl_fixed_t /*dx_unaccel*/,
wl_fixed_t /*dy_unaccel*/)
{
input_t *input = static_cast<input_t *>(data);
input->x += wl_fixed_to_int(dx);
input->y += wl_fixed_to_int(dy);
GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>(
wl_surface_get_user_data(input->focus_pointer));
input->system->pushEvent(new GHOST_EventCursor(input->system->getMilliSeconds(),
GHOST_kEventCursorMove,
win,
input->x,
input->y,
GHOST_TABLET_DATA_NONE));
}
static const zwp_relative_pointer_v1_listener relative_pointer_listener = {
relative_pointer_relative_motion,
};
static void dnd_events(const input_t *const input, const GHOST_TEventType event)
{
const uint64_t time = input->system->getMilliSeconds();
GHOST_IWindow *const window = static_cast<GHOST_WindowWayland *>(
wl_surface_get_user_data(input->focus_pointer));
for (const std::string &type : mime_preference_order) {
input->system->pushEvent(new GHOST_EventDragnDrop(time,
event,
mime_dnd.at(type),
window,
input->data_offer_dnd->dnd.x,
input->data_offer_dnd->dnd.y,
nullptr));
}
}
static std::string read_pipe(data_offer_t *data_offer, const std::string mime_receive)
{
int pipefd[2];
if (pipe(pipefd) != 0) {
return {};
}
wl_data_offer_receive(data_offer->id, mime_receive.c_str(), pipefd[1]);
close(pipefd[1]);
std::string data;
ssize_t len;
char buffer[4096];
while ((len = read(pipefd[0], buffer, sizeof(buffer))) > 0) {
data.insert(data.end(), buffer, buffer + len);
}
close(pipefd[0]);
data_offer->in_use.store(false);
return data;
}
/**
* A target accepts an offered mime type.
*
* Sent when a target accepts pointer_focus or motion events. If
* a target does not accept any of the offered types, type is NULL.
*/
static void data_source_target(void * /*data*/,
struct wl_data_source * /*wl_data_source*/,
const char * /*mime_type*/)
{
/* pass */
}
static void data_source_send(void *data,
struct wl_data_source * /*wl_data_source*/,
const char * /*mime_type*/,
int32_t fd)
{
const char *const buffer = static_cast<char *>(data);
if (write(fd, buffer, strlen(buffer) + 1) < 0) {
GHOST_PRINT("error writing to clipboard: " << std::strerror(errno) << std::endl);
}
close(fd);
}
static void data_source_cancelled(void * /*data*/, struct wl_data_source *wl_data_source)
{
wl_data_source_destroy(wl_data_source);
}
/**
* The drag-and-drop operation physically finished.
*
* The user performed the drop action. This event does not
* indicate acceptance, #wl_data_source.cancelled may still be
* emitted afterwards if the drop destination does not accept any mime type.
*/
static void data_source_dnd_drop_performed(void * /*data*/,
struct wl_data_source * /*wl_data_source*/)
{
/* pass */
}
/**
* The drag-and-drop operation concluded.
*
* The drop destination finished interoperating with this data
* source, so the client is now free to destroy this data source
* and free all associated data.
*/
static void data_source_dnd_finished(void * /*data*/, struct wl_data_source * /*wl_data_source*/)
{
/* pass */
}
/**
* Notify the selected action.
*
* This event indicates the action selected by the compositor
* after matching the source/destination side actions. Only one
* action (or none) will be offered here.
*/
static void data_source_action(void * /*data*/,
struct wl_data_source * /*wl_data_source*/,
uint32_t /*dnd_action*/)
{
/* pass */
}
static const struct wl_data_source_listener data_source_listener = {
data_source_target,
data_source_send,
data_source_cancelled,
data_source_dnd_drop_performed,
data_source_dnd_finished,
data_source_action,
};
static void data_offer_offer(void *data,
struct wl_data_offer * /*wl_data_offer*/,
const char *mime_type)
{
static_cast<data_offer_t *>(data)->types.insert(mime_type);
}
static void data_offer_source_actions(void *data,
struct wl_data_offer * /*wl_data_offer*/,
uint32_t source_actions)
{
static_cast<data_offer_t *>(data)->source_actions = source_actions;
}
static void data_offer_action(void *data,
struct wl_data_offer * /*wl_data_offer*/,
uint32_t dnd_action)
{
static_cast<data_offer_t *>(data)->dnd_action = dnd_action;
}
static const struct wl_data_offer_listener data_offer_listener = {
data_offer_offer,
data_offer_source_actions,
data_offer_action,
};
static void data_device_data_offer(void * /*data*/,
struct wl_data_device * /*wl_data_device*/,
struct wl_data_offer *id)
{
data_offer_t *data_offer = new data_offer_t;
data_offer->id = id;
wl_data_offer_add_listener(id, &data_offer_listener, data_offer);
}
static void data_device_enter(void *data,
struct wl_data_device * /*wl_data_device*/,
uint32_t serial,
struct wl_surface * /*surface*/,
wl_fixed_t x,
wl_fixed_t y,
struct wl_data_offer *id)
{
input_t *input = static_cast<input_t *>(data);
input->data_offer_dnd = static_cast<data_offer_t *>(wl_data_offer_get_user_data(id));
data_offer_t *data_offer = input->data_offer_dnd;
data_offer->in_use.store(true);
data_offer->dnd.x = wl_fixed_to_int(x);
data_offer->dnd.y = wl_fixed_to_int(y);
wl_data_offer_set_actions(id,
WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY |
WL_DATA_DEVICE_MANAGER_DND_ACTION_MOVE,
WL_DATA_DEVICE_MANAGER_DND_ACTION_COPY);
for (const std::string &type : mime_preference_order) {
wl_data_offer_accept(id, serial, type.c_str());
}
dnd_events(input, GHOST_kEventDraggingEntered);
}
static void data_device_leave(void *data, struct wl_data_device * /*wl_data_device*/)
{
input_t *input = static_cast<input_t *>(data);
dnd_events(input, GHOST_kEventDraggingExited);
if (input->data_offer_dnd && !input->data_offer_dnd->in_use.load()) {
wl_data_offer_destroy(input->data_offer_dnd->id);
delete input->data_offer_dnd;
input->data_offer_dnd = nullptr;
}
}
static void data_device_motion(void *data,
struct wl_data_device * /*wl_data_device*/,
uint32_t /*time*/,
wl_fixed_t x,
wl_fixed_t y)
{
input_t *input = static_cast<input_t *>(data);
input->data_offer_dnd->dnd.x = wl_fixed_to_int(x);
input->data_offer_dnd->dnd.y = wl_fixed_to_int(y);
dnd_events(input, GHOST_kEventDraggingUpdated);
}
static void data_device_drop(void *data, struct wl_data_device * /*wl_data_device*/)
{
input_t *input = static_cast<input_t *>(data);
data_offer_t *data_offer = input->data_offer_dnd;
const std::string mime_receive = *std::find_first_of(mime_preference_order.begin(),
mime_preference_order.end(),
data_offer->types.begin(),
data_offer->types.end());
auto read_uris = [](input_t *const input,
data_offer_t *data_offer,
const std::string mime_receive) {
const int x = data_offer->dnd.x;
const int y = data_offer->dnd.y;
const std::string data = read_pipe(data_offer, mime_receive);
wl_data_offer_finish(data_offer->id);
wl_data_offer_destroy(data_offer->id);
delete data_offer;
data_offer = nullptr;
GHOST_SystemWayland *const system = input->system;
if (mime_receive == mime_text_uri) {
static constexpr const char *file_proto = "file://";
static constexpr const char *crlf = "\r\n";
std::vector<std::string> uris;
size_t pos = 0;
while (true) {
pos = data.find(file_proto, pos);
const size_t start = pos + sizeof(file_proto) - 1;
pos = data.find(crlf, pos);
const size_t end = pos;
if (pos == std::string::npos) {
break;
}
uris.push_back(data.substr(start, end - start));
}
GHOST_TStringArray *flist = static_cast<GHOST_TStringArray *>(
malloc(sizeof(GHOST_TStringArray)));
flist->count = int(uris.size());
flist->strings = static_cast<uint8_t **>(malloc(uris.size() * sizeof(uint8_t *)));
for (size_t i = 0; i < uris.size(); i++) {
flist->strings[i] = static_cast<uint8_t *>(malloc((uris[i].size() + 1) * sizeof(uint8_t)));
memcpy(flist->strings[i], uris[i].data(), uris[i].size() + 1);
}
GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>(
wl_surface_get_user_data(input->focus_pointer));
system->pushEvent(new GHOST_EventDragnDrop(system->getMilliSeconds(),
GHOST_kEventDraggingDropDone,
GHOST_kDragnDropTypeFilenames,
win,
x,
y,
flist));
}
else if (mime_receive == mime_text_plain || mime_receive == mime_text_utf8) {
/* TODO: enable use of internal functions 'txt_insert_buf' and
* 'text_update_edited' to behave like dropped text was pasted. */
}
wl_display_roundtrip(system->display());
};
std::thread read_thread(read_uris, input, data_offer, mime_receive);
read_thread.detach();
}
static void data_device_selection(void *data,
struct wl_data_device * /*wl_data_device*/,
struct wl_data_offer *id)
{
input_t *input = static_cast<input_t *>(data);
data_offer_t *data_offer = input->data_offer_copy_paste;
/* Delete old data offer. */
if (data_offer != nullptr) {
wl_data_offer_destroy(data_offer->id);
delete data_offer;
data_offer = nullptr;
}
if (id == nullptr) {
return;
}
/* Get new data offer. */
data_offer = static_cast<data_offer_t *>(wl_data_offer_get_user_data(id));
input->data_offer_copy_paste = data_offer;
std::string mime_receive;
for (const std::string &type : {mime_text_utf8, mime_text_plain}) {
if (data_offer->types.count(type)) {
mime_receive = type;
break;
}
}
auto read_selection = [](GHOST_SystemWayland *const system,
data_offer_t *data_offer,
const std::string mime_receive) {
const std::string data = read_pipe(data_offer, mime_receive);
system->setSelection(data);
};
std::thread read_thread(read_selection, input->system, data_offer, mime_receive);
read_thread.detach();
}
static const struct wl_data_device_listener data_device_listener = {
data_device_data_offer,
data_device_enter,
data_device_leave,
data_device_motion,
data_device_drop,
data_device_selection,
};
static void cursor_buffer_release(void *data, struct wl_buffer *wl_buffer)
{
cursor_t *cursor = static_cast<cursor_t *>(data);
wl_buffer_destroy(wl_buffer);
if (wl_buffer == cursor->buffer) {
/* the mapped buffer was from a custom cursor */
cursor->buffer = nullptr;
}
}
const struct wl_buffer_listener cursor_buffer_listener = {
cursor_buffer_release,
};
static GHOST_IWindow *get_window(struct wl_surface *surface)
{
if (!surface) {
return nullptr;
}
for (GHOST_IWindow *win : window_manager->getWindows()) {
if (surface == static_cast<const GHOST_WindowWayland *>(win)->surface()) {
return win;
}
}
return nullptr;
}
static bool update_cursor_scale(cursor_t &cursor, wl_shm *shm)
{
int scale = 0;
for (const output_t *output : cursor.outputs) {
if (output->scale > scale)
scale = output->scale;
}
if (scale > 0 && cursor.scale != scale) {
cursor.scale = scale;
wl_surface_set_buffer_scale(cursor.surface, scale);
wl_cursor_theme_destroy(cursor.theme);
cursor.theme = wl_cursor_theme_load(cursor.theme_name.c_str(), scale * cursor.size, shm);
return true;
}
return false;
}
static void cursor_surface_enter(void *data,
struct wl_surface * /*wl_surface*/,
struct wl_output *output)
{
input_t *input = static_cast<input_t *>(data);
for (const output_t *reg_output : input->system->outputs()) {
if (reg_output->output == output) {
input->cursor.outputs.insert(reg_output);
}
}
update_cursor_scale(input->cursor, input->system->shm());
}
static void cursor_surface_leave(void *data,
struct wl_surface * /*wl_surface*/,
struct wl_output *output)
{
input_t *input = static_cast<input_t *>(data);
for (const output_t *reg_output : input->system->outputs()) {
if (reg_output->output == output) {
input->cursor.outputs.erase(reg_output);
}
}
update_cursor_scale(input->cursor, input->system->shm());
}
struct wl_surface_listener cursor_surface_listener = {
cursor_surface_enter,
cursor_surface_leave,
};
static void pointer_enter(void *data,
struct wl_pointer * /*wl_pointer*/,
uint32_t serial,
struct wl_surface *surface,
wl_fixed_t surface_x,
wl_fixed_t surface_y)
{
GHOST_WindowWayland *win = static_cast<GHOST_WindowWayland *>(get_window(surface));
if (!win) {
return;
}
win->activate();
input_t *input = static_cast<input_t *>(data);
input->pointer_serial = serial;
input->x = win->scale() * wl_fixed_to_int(surface_x);
input->y = win->scale() * wl_fixed_to_int(surface_y);
input->focus_pointer = surface;
win->setCursorShape(win->getCursorShape());
input->system->pushEvent(new GHOST_EventCursor(input->system->getMilliSeconds(),
GHOST_kEventCursorMove,
static_cast<GHOST_WindowWayland *>(win),
input->x,
input->y,
GHOST_TABLET_DATA_NONE));
}
static void pointer_leave(void *data,
struct wl_pointer * /*wl_pointer*/,
uint32_t /*serial*/,
struct wl_surface *surface)
{
GHOST_IWindow *win = get_window(surface);
if (!win) {
return;
}
static_cast<input_t *>(data)->focus_pointer = nullptr;
static_cast<GHOST_WindowWayland *>(win)->deactivate();
}
static void pointer_motion(void *data,
struct wl_pointer * /*wl_pointer*/,
uint32_t /*time*/,
wl_fixed_t surface_x,
wl_fixed_t surface_y)
{
input_t *input = static_cast<input_t *>(data);
GHOST_WindowWayland *win = static_cast<GHOST_WindowWayland *>(get_window(input->focus_pointer));
if (!win) {
return;
}
input->x = win->scale() * wl_fixed_to_int(surface_x);
input->y = win->scale() * wl_fixed_to_int(surface_y);
input->system->pushEvent(new GHOST_EventCursor(input->system->getMilliSeconds(),
GHOST_kEventCursorMove,
win,
input->x,
input->y,
GHOST_TABLET_DATA_NONE));
}
static void pointer_button(void *data,
struct wl_pointer * /*wl_pointer*/,
uint32_t serial,
uint32_t /*time*/,
uint32_t button,
uint32_t state)
{
input_t *input = static_cast<input_t *>(data);
GHOST_IWindow *win = get_window(input->focus_pointer);
if (!win) {
return;
}
GHOST_TEventType etype = GHOST_kEventUnknown;
switch (state) {
case WL_POINTER_BUTTON_STATE_RELEASED:
etype = GHOST_kEventButtonUp;
break;
case WL_POINTER_BUTTON_STATE_PRESSED:
etype = GHOST_kEventButtonDown;
break;
}
GHOST_TButtonMask ebutton = GHOST_kButtonMaskLeft;
switch (button) {
case BTN_LEFT:
ebutton = GHOST_kButtonMaskLeft;
break;
case BTN_MIDDLE:
ebutton = GHOST_kButtonMaskMiddle;
break;
case BTN_RIGHT:
ebutton = GHOST_kButtonMaskRight;
break;
}
input->data_source->source_serial = serial;
input->buttons.set(ebutton, state == WL_POINTER_BUTTON_STATE_PRESSED);
input->system->pushEvent(new GHOST_EventButton(
input->system->getMilliSeconds(), etype, win, ebutton, GHOST_TABLET_DATA_NONE));
}
static void pointer_axis(void *data,
struct wl_pointer * /*wl_pointer*/,
uint32_t /*time*/,
uint32_t axis,
wl_fixed_t value)
{
input_t *input = static_cast<input_t *>(data);
GHOST_IWindow *win = get_window(input->focus_pointer);
if (!win) {
return;
}
if (axis != WL_POINTER_AXIS_VERTICAL_SCROLL) {
return;
}
input->system->pushEvent(
new GHOST_EventWheel(input->system->getMilliSeconds(), win, std::signbit(value) ? +1 : -1));
}
static const struct wl_pointer_listener pointer_listener = {
pointer_enter,
pointer_leave,
pointer_motion,
pointer_button,
pointer_axis,
};
static void keyboard_keymap(
void *data, struct wl_keyboard * /*wl_keyboard*/, uint32_t format, int32_t fd, uint32_t size)
{
input_t *input = static_cast<input_t *>(data);
if ((!data) || (format != WL_KEYBOARD_KEYMAP_FORMAT_XKB_V1)) {
close(fd);
return;
}
char *map_str = static_cast<char *>(mmap(nullptr, size, PROT_READ, MAP_PRIVATE, fd, 0));
if (map_str == MAP_FAILED) {
close(fd);
throw std::runtime_error("keymap mmap failed: " + std::string(std::strerror(errno)));
}
struct xkb_keymap *keymap = xkb_keymap_new_from_string(
input->xkb_context, map_str, XKB_KEYMAP_FORMAT_TEXT_V1, XKB_KEYMAP_COMPILE_NO_FLAGS);
munmap(map_str, size);
close(fd);
if (!keymap) {
return;
}
input->xkb_state = xkb_state_new(keymap);
xkb_keymap_unref(keymap);
}
/**
* Enter event.
*
* Notification that this seat's keyboard focus is on a certain
* surface.
*/
static void keyboard_enter(void *data,
struct wl_keyboard * /*wl_keyboard*/,
uint32_t /*serial*/,
struct wl_surface *surface,
struct wl_array * /*keys*/)
{
if (surface != nullptr) {
static_cast<input_t *>(data)->focus_keyboard = surface;
}
}
/**
* Leave event.
*
* Notification that this seat's keyboard focus is no longer on a
* certain surface.
*/
static void keyboard_leave(void *data,
struct wl_keyboard * /*wl_keyboard*/,
uint32_t /*serial*/,
struct wl_surface *surface)
{
if (surface != nullptr) {
static_cast<input_t *>(data)->focus_keyboard = nullptr;
}
}
/**
* A version of #xkb_state_key_get_one_sym which returns the key without any modifiers pressed.
* Needed because #GHOST_TKey uses these values as key-codes.
*/
static xkb_keysym_t xkb_state_key_get_one_sym_without_modifiers(struct xkb_state *xkb_state,
xkb_keycode_t key)
{
/* Use an empty keyboard state to access key symbol without modifiers. */
xkb_state_get_keymap(xkb_state);
struct xkb_keymap *keymap = xkb_state_get_keymap(xkb_state);
struct xkb_state *xkb_state_empty = xkb_state_new(keymap);
/* Enable number-lock. */
{
const xkb_mod_index_t mod2 = xkb_keymap_mod_get_index(keymap, XKB_MOD_NAME_NUM);
const xkb_mod_index_t num = xkb_keymap_mod_get_index(keymap, "NumLock");
if (num != XKB_MOD_INVALID && mod2 != XKB_MOD_INVALID) {
xkb_state_update_mask(xkb_state_empty, (1 << mod2), 0, (1 << num), 0, 0, 0);
}
}
const xkb_keysym_t sym = xkb_state_key_get_one_sym(xkb_state_empty, key);
xkb_state_unref(xkb_state_empty);
return sym;
}
static void keyboard_key(void *data,
struct wl_keyboard * /*wl_keyboard*/,
uint32_t serial,
uint32_t /*time*/,
uint32_t key,
uint32_t state)
{
input_t *input = static_cast<input_t *>(data);
GHOST_TEventType etype = GHOST_kEventUnknown;
switch (state) {
case WL_KEYBOARD_KEY_STATE_RELEASED:
etype = GHOST_kEventKeyUp;
break;
case WL_KEYBOARD_KEY_STATE_PRESSED:
etype = GHOST_kEventKeyDown;
break;
}
const xkb_keysym_t sym = xkb_state_key_get_one_sym_without_modifiers(input->xkb_state, key + 8);
if (sym == XKB_KEY_NoSymbol) {
return;
}
const GHOST_TKey gkey = xkb_map_gkey(sym);
/* Delete previous timer. */
if (xkb_keymap_key_repeats(xkb_state_get_keymap(input->xkb_state), key + 8) &&
input->key_repeat.timer) {
delete static_cast<key_repeat_payload_t *>(input->key_repeat.timer->getUserData());
input->system->removeTimer(input->key_repeat.timer);
input->key_repeat.timer = nullptr;
}
GHOST_TEventKeyData key_data;
if (etype == GHOST_kEventKeyDown) {
xkb_state_key_get_utf8(
input->xkb_state, key + 8, key_data.utf8_buf, sizeof(GHOST_TEventKeyData::utf8_buf));
}
else {
key_data.utf8_buf[0] = '\0';
}
input->data_source->source_serial = serial;
GHOST_IWindow *win = static_cast<GHOST_WindowWayland *>(
wl_surface_get_user_data(input->focus_keyboard));
input->system->pushEvent(new GHOST_EventKey(
input->system->getMilliSeconds(), etype, win, gkey, '\0', key_data.utf8_buf, false));
/* Start timer for repeating key, if applicable. */
if (input->key_repeat.rate > 0 &&
xkb_keymap_key_repeats(xkb_state_get_keymap(input->xkb_state), key + 8) &&
etype == GHOST_kEventKeyDown) {
key_repeat_payload_t *payload = new key_repeat_payload_t({
.system = input->system,
.window = win,
.key = gkey,
.key_data = key_data,
});
auto cb = [](GHOST_ITimerTask *task, uint64_t /*time*/) {
struct key_repeat_payload_t *payload = static_cast<key_repeat_payload_t *>(
task->getUserData());
payload->system->pushEvent(new GHOST_EventKey(payload->system->getMilliSeconds(),
GHOST_kEventKeyDown,
payload->window,
payload->key,
'\0',
payload->key_data.utf8_buf,
true));
};
input->key_repeat.timer = input->system->installTimer(
input->key_repeat.delay, 1000 / input->key_repeat.rate, cb, payload);
}
}
static void keyboard_modifiers(void *data,
struct wl_keyboard * /*wl_keyboard*/,
uint32_t /*serial*/,
uint32_t mods_depressed,
uint32_t mods_latched,
uint32_t mods_locked,
uint32_t group)
{
xkb_state_update_mask(static_cast<input_t *>(data)->xkb_state,
mods_depressed,
mods_latched,
mods_locked,
0,
0,
group);
}
static void keyboard_repeat_info(void *data,
struct wl_keyboard * /*wl_keyboard*/,
int32_t rate,
int32_t delay)
{
input_t *input = static_cast<input_t *>(data);
input->key_repeat.rate = rate;
input->key_repeat.delay = delay;
}
static const struct wl_keyboard_listener keyboard_listener = {
keyboard_keymap,
keyboard_enter,
keyboard_leave,
keyboard_key,
keyboard_modifiers,
keyboard_repeat_info,
};
static void seat_capabilities(void *data, struct wl_seat *wl_seat, uint32_t capabilities)
{
input_t *input = static_cast<input_t *>(data);
input->pointer = nullptr;
input->keyboard = nullptr;
if (capabilities & WL_SEAT_CAPABILITY_POINTER) {
input->pointer = wl_seat_get_pointer(wl_seat);
input->cursor.surface = wl_compositor_create_surface(input->system->compositor());
input->cursor.visible = true;
input->cursor.buffer = nullptr;
input->cursor.file_buffer = new buffer_t;
if (!get_cursor_settings(input->cursor.theme_name, input->cursor.size)) {
input->cursor.theme_name = std::string();
input->cursor.size = default_cursor_size;
}
wl_pointer_add_listener(input->pointer, &pointer_listener, data);
wl_surface_add_listener(input->cursor.surface, &cursor_surface_listener, data);
}
if (capabilities & WL_SEAT_CAPABILITY_KEYBOARD) {
input->keyboard = wl_seat_get_keyboard(wl_seat);
wl_keyboard_add_listener(input->keyboard, &keyboard_listener, data);
}
}
static void seat_name(void *data, struct wl_seat * /*wl_seat*/, const char *name)
{
static_cast<input_t *>(data)->name = std::string(name);
}
static const struct wl_seat_listener seat_listener = {
seat_capabilities,
seat_name,
};
static void output_geometry(void *data,
struct wl_output * /*wl_output*/,
int32_t /*x*/,
int32_t /*y*/,
int32_t physical_width,
int32_t physical_height,
int32_t /*subpixel*/,
const char *make,
const char *model,
int32_t transform)
{
output_t *output = static_cast<output_t *>(data);
output->transform = transform;
output->make = std::string(make);
output->model = std::string(model);
output->width_mm = physical_width;
output->height_mm = physical_height;
}
static void output_mode(void *data,
struct wl_output * /*wl_output*/,
uint32_t /*flags*/,
int32_t width,
int32_t height,
int32_t /*refresh*/)
{
output_t *output = static_cast<output_t *>(data);
output->width_pxl = width;
output->height_pxl = height;
}
/**
* Sent all information about output.
*
* This event is sent after all other properties have been sent
* after binding to the output object and after any other property
* changes done after that. This allows changes to the output
* properties to be seen as atomic, even if they happen via multiple events.
*/
static void output_done(void * /*data*/, struct wl_output * /*wl_output*/)
{
}
static void output_scale(void *data, struct wl_output * /*wl_output*/, int32_t factor)
{
static_cast<output_t *>(data)->scale = factor;
}
static const struct wl_output_listener output_listener = {
output_geometry,
output_mode,
output_done,
output_scale,
};
static void shell_ping(void * /*data*/, struct xdg_wm_base *xdg_wm_base, uint32_t serial)
{
xdg_wm_base_pong(xdg_wm_base, serial);
}
static const struct xdg_wm_base_listener shell_listener = {
shell_ping,
};
static void global_add(void *data,
struct wl_registry *wl_registry,
uint32_t name,
const char *interface,
uint32_t /*version*/)
{
struct display_t *display = static_cast<struct display_t *>(data);
if (!strcmp(interface, wl_compositor_interface.name)) {
display->compositor = static_cast<wl_compositor *>(
wl_registry_bind(wl_registry, name, &wl_compositor_interface, 3));
}
else if (!strcmp(interface, xdg_wm_base_interface.name)) {
display->xdg_shell = static_cast<xdg_wm_base *>(
wl_registry_bind(wl_registry, name, &xdg_wm_base_interface, 1));
xdg_wm_base_add_listener(display->xdg_shell, &shell_listener, nullptr);
}
else if (!strcmp(interface, zxdg_decoration_manager_v1_interface.name)) {
display->xdg_decoration_manager = static_cast<zxdg_decoration_manager_v1 *>(
wl_registry_bind(wl_registry, name, &zxdg_decoration_manager_v1_interface, 1));
}
else if (!strcmp(interface, wl_output_interface.name)) {
output_t *output = new output_t;
output->scale = 1;
output->output = static_cast<wl_output *>(
wl_registry_bind(wl_registry, name, &wl_output_interface, 2));
display->outputs.push_back(output);
wl_output_add_listener(output->output, &output_listener, output);
}
else if (!strcmp(interface, wl_seat_interface.name)) {
input_t *input = new input_t;
input->system = display->system;
input->xkb_context = xkb_context_new(XKB_CONTEXT_NO_FLAGS);
input->xkb_state = nullptr;
input->data_offer_dnd = nullptr;
input->data_offer_copy_paste = nullptr;
input->data_source = new data_source_t;
input->data_source->data_source = nullptr;
input->data_source->buffer_out = nullptr;
input->relative_pointer = nullptr;
input->locked_pointer = nullptr;
input->seat = static_cast<wl_seat *>(
wl_registry_bind(wl_registry, name, &wl_seat_interface, 4));
display->inputs.push_back(input);
wl_seat_add_listener(input->seat, &seat_listener, input);
}
else if (!strcmp(interface, wl_shm_interface.name)) {
display->shm = static_cast<wl_shm *>(
wl_registry_bind(wl_registry, name, &wl_shm_interface, 1));
}
else if (!strcmp(interface, wl_data_device_manager_interface.name)) {
display->data_device_manager = static_cast<wl_data_device_manager *>(
wl_registry_bind(wl_registry, name, &wl_data_device_manager_interface, 1));
}
else if (!strcmp(interface, zwp_relative_pointer_manager_v1_interface.name)) {
display->relative_pointer_manager = static_cast<zwp_relative_pointer_manager_v1 *>(
wl_registry_bind(wl_registry, name, &zwp_relative_pointer_manager_v1_interface, 1));
}
else if (!strcmp(interface, zwp_pointer_constraints_v1_interface.name)) {
display->pointer_constraints = static_cast<zwp_pointer_constraints_v1 *>(
wl_registry_bind(wl_registry, name, &zwp_pointer_constraints_v1_interface, 1));
}
}
/**
* Announce removal of global object.
*
* Notify the client of removed global objects.
*
* This event notifies the client that the global identified by
* name is no longer available. If the client bound to the global
* using the bind request, the client should now destroy that object.
*/
static void global_remove(void * /*data*/, struct wl_registry * /*wl_registry*/, uint32_t /*name*/)
{
}
static const struct wl_registry_listener registry_listener = {
global_add,
global_remove,
};
/** \} */
/* -------------------------------------------------------------------- */
/** \name Ghost Implementation
*
* Wayland specific implementation of the GHOST_System interface.
* \{ */
GHOST_SystemWayland::GHOST_SystemWayland() : GHOST_System(), d(new display_t)
{
d->system = this;
/* Connect to the Wayland server. */
d->display = wl_display_connect(nullptr);
if (!d->display) {
display_destroy(d);
throw std::runtime_error("Wayland: unable to connect to display!");
}
/* Register interfaces. */
struct wl_registry *registry = wl_display_get_registry(d->display);
wl_registry_add_listener(registry, &registry_listener, d);
/* Call callback for registry listener. */
wl_display_roundtrip(d->display);
/* Call callbacks for registered listeners. */
wl_display_roundtrip(d->display);
wl_registry_destroy(registry);
if (!d->xdg_shell) {
display_destroy(d);
throw std::runtime_error("Wayland: unable to access xdg_shell!");
}
/* Register data device per seat for IPC between Wayland clients. */
if (d->data_device_manager) {
for (input_t *input : d->inputs) {
input->data_device = wl_data_device_manager_get_data_device(d->data_device_manager,
input->seat);
wl_data_device_add_listener(input->data_device, &data_device_listener, input);
}
}
}
GHOST_SystemWayland::~GHOST_SystemWayland()
{
display_destroy(d);
}
bool GHOST_SystemWayland::processEvents(bool waitForEvent)
{
const bool fired = getTimerManager()->fireTimers(getMilliSeconds());
if (waitForEvent) {
wl_display_dispatch(d->display);
}
else {
wl_display_roundtrip(d->display);
}
return fired || (getEventManager()->getNumEvents() > 0);
}
int GHOST_SystemWayland::toggleConsole(int /*action*/)
{
return 0;
}
GHOST_TSuccess GHOST_SystemWayland::getModifierKeys(GHOST_ModifierKeys &keys) const
{
if (!d->inputs.empty()) {
static const xkb_state_component mods_all = xkb_state_component(
XKB_STATE_MODS_DEPRESSED | XKB_STATE_MODS_LATCHED | XKB_STATE_MODS_LOCKED |
XKB_STATE_MODS_EFFECTIVE);
keys.set(GHOST_kModifierKeyLeftShift,
xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, XKB_MOD_NAME_SHIFT, mods_all) ==
1);
keys.set(GHOST_kModifierKeyRightShift,
xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, XKB_MOD_NAME_SHIFT, mods_all) ==
1);
keys.set(GHOST_kModifierKeyLeftAlt,
xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "LAlt", mods_all) == 1);
keys.set(GHOST_kModifierKeyRightAlt,
xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "RAlt", mods_all) == 1);
keys.set(GHOST_kModifierKeyLeftControl,
xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "LControl", mods_all) == 1);
keys.set(GHOST_kModifierKeyRightControl,
xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "RControl", mods_all) == 1);
keys.set(GHOST_kModifierKeyOS,
xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "Super", mods_all) == 1);
keys.set(GHOST_kModifierKeyNumMasks,
xkb_state_mod_name_is_active(d->inputs[0]->xkb_state, "NumLock", mods_all) == 1);
return GHOST_kSuccess;
}
return GHOST_kFailure;
}
GHOST_TSuccess GHOST_SystemWayland::getButtons(GHOST_Buttons &buttons) const
{
if (!d->inputs.empty()) {
buttons = d->inputs[0]->buttons;
return GHOST_kSuccess;
}
return GHOST_kFailure;
}
char *GHOST_SystemWayland::getClipboard(bool /*selection*/) const
{
char *clipboard = static_cast<char *>(malloc((selection.size() + 1)));
memcpy(clipboard, selection.data(), selection.size() + 1);
return clipboard;
}
void GHOST_SystemWayland::putClipboard(const char *buffer, bool /*selection*/) const
{
if (!d->data_device_manager || d->inputs.empty()) {
return;
}
data_source_t *data_source = d->inputs[0]->data_source;
/* Copy buffer. */
data_source->buffer_out = static_cast<char *>(malloc(strlen(buffer) + 1));
std::strcpy(data_source->buffer_out, buffer);
data_source->data_source = wl_data_device_manager_create_data_source(d->data_device_manager);
wl_data_source_add_listener(
data_source->data_source, &data_source_listener, data_source->buffer_out);
for (const std::string &type : mime_send) {
wl_data_source_offer(data_source->data_source, type.c_str());
}
if (!d->inputs.empty() && d->inputs[0]->data_device) {
wl_data_device_set_selection(
d->inputs[0]->data_device, data_source->data_source, data_source->source_serial);
}
}
uint8_t GHOST_SystemWayland::getNumDisplays() const
{
return d ? uint8_t(d->outputs.size()) : 0;
}
GHOST_TSuccess GHOST_SystemWayland::getCursorPosition(int32_t &x, int32_t &y) const
{
if (!d->inputs.empty() && (d->inputs[0]->focus_pointer != nullptr)) {
x = d->inputs[0]->x;
y = d->inputs[0]->y;
return GHOST_kSuccess;
}
else {
return GHOST_kFailure;
}
}
GHOST_TSuccess GHOST_SystemWayland::setCursorPosition(int32_t /*x*/, int32_t /*y*/)
{
return GHOST_kFailure;
}
void GHOST_SystemWayland::getMainDisplayDimensions(uint32_t &width, uint32_t &height) const
{
if (getNumDisplays() > 0) {
/* We assume first output as main. */
width = uint32_t(d->outputs[0]->width_pxl) / d->outputs[0]->scale;
height = uint32_t(d->outputs[0]->height_pxl) / d->outputs[0]->scale;
}
}
void GHOST_SystemWayland::getAllDisplayDimensions(uint32_t &width, uint32_t &height) const
{
getMainDisplayDimensions(width, height);
}
GHOST_IContext *GHOST_SystemWayland::createOffscreenContext(GHOST_GLSettings /*glSettings*/)
{
/* Create new off-screen window. */
wl_surface *os_surface = wl_compositor_create_surface(compositor());
wl_egl_window *os_egl_window = wl_egl_window_create(os_surface, int(1), int(1));
d->os_surfaces.push_back(os_surface);
d->os_egl_windows.push_back(os_egl_window);
GHOST_Context *context;
for (int minor = 6; minor >= 0; --minor) {
context = new GHOST_ContextEGL(this,
false,
EGLNativeWindowType(os_egl_window),
EGLNativeDisplayType(d->display),
EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
4,
minor,
GHOST_OPENGL_EGL_CONTEXT_FLAGS,
GHOST_OPENGL_EGL_RESET_NOTIFICATION_STRATEGY,
EGL_OPENGL_API);
if (context->initializeDrawingContext())
return context;
else
delete context;
}
context = new GHOST_ContextEGL(this,
false,
EGLNativeWindowType(os_egl_window),
EGLNativeDisplayType(d->display),
EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
3,
3,
GHOST_OPENGL_EGL_CONTEXT_FLAGS,
GHOST_OPENGL_EGL_RESET_NOTIFICATION_STRATEGY,
EGL_OPENGL_API);
if (context->initializeDrawingContext()) {
return context;
}
else {
delete context;
}
GHOST_PRINT("Cannot create off-screen EGL context" << std::endl);
return nullptr;
}
GHOST_TSuccess GHOST_SystemWayland::disposeContext(GHOST_IContext *context)
{
delete context;
return GHOST_kSuccess;
}
GHOST_IWindow *GHOST_SystemWayland::createWindow(const char *title,
int32_t left,
int32_t top,
uint32_t width,
uint32_t height,
GHOST_TWindowState state,
GHOST_TDrawingContextType type,
GHOST_GLSettings glSettings,
const bool exclusive,
const bool is_dialog,
const GHOST_IWindow *parentWindow)
{
/* globally store pointer to window manager */
if (!window_manager) {
window_manager = getWindowManager();
}
GHOST_WindowWayland *window = new GHOST_WindowWayland(
this,
title,
left,
top,
width,
height,
state,
parentWindow,
type,
is_dialog,
((glSettings.flags & GHOST_glStereoVisual) != 0),
exclusive);
if (window) {
if (window->getValid()) {
m_windowManager->addWindow(window);
m_windowManager->setActiveWindow(window);
pushEvent(new GHOST_Event(getMilliSeconds(), GHOST_kEventWindowSize, window));
}
else {
delete window;
window = nullptr;
}
}
return window;
}
wl_display *GHOST_SystemWayland::display()
{
return d->display;
}
wl_compositor *GHOST_SystemWayland::compositor()
{
return d->compositor;
}
xdg_wm_base *GHOST_SystemWayland::shell()
{
return d->xdg_shell;
}
zxdg_decoration_manager_v1 *GHOST_SystemWayland::decoration_manager()
{
return d->xdg_decoration_manager;
}
const std::vector<output_t *> &GHOST_SystemWayland::outputs() const
{
return d->outputs;
}
wl_shm *GHOST_SystemWayland::shm() const
{
return d->shm;
}
void GHOST_SystemWayland::setSelection(const std::string &selection)
{
this->selection = selection;
}
static void set_cursor_buffer(input_t *input, wl_buffer *buffer)
{
cursor_t *c = &input->cursor;
c->visible = (buffer != nullptr);
wl_surface_attach(c->surface, buffer, 0, 0);
wl_surface_damage(c->surface, 0, 0, int32_t(c->image.width), int32_t(c->image.height));
wl_pointer_set_cursor(input->pointer,
input->pointer_serial,
c->visible ? c->surface : nullptr,
int32_t(c->image.hotspot_x) / c->scale,
int32_t(c->image.hotspot_y) / c->scale);
wl_surface_commit(c->surface);
}
GHOST_TSuccess GHOST_SystemWayland::setCursorShape(GHOST_TStandardCursor shape)
{
if (d->inputs.empty()) {
return GHOST_kFailure;
}
const std::string cursor_name = cursors.count(shape) ? cursors.at(shape) :
cursors.at(GHOST_kStandardCursorDefault);
input_t *input = d->inputs[0];
cursor_t *c = &input->cursor;
if (!c->theme) {
/* The cursor surface hasn't entered an output yet. Initialize theme with scale 1. */
c->theme = wl_cursor_theme_load(c->theme_name.c_str(), c->size, d->inputs[0]->system->shm());
}
wl_cursor *cursor = wl_cursor_theme_get_cursor(c->theme, cursor_name.c_str());
if (!cursor) {
GHOST_PRINT("cursor '" << cursor_name << "' does not exist" << std::endl);
return GHOST_kFailure;
}
struct wl_cursor_image *image = cursor->images[0];
struct wl_buffer *buffer = wl_cursor_image_get_buffer(image);
if (!buffer) {
return GHOST_kFailure;
}
c->buffer = buffer;
c->image = *image;
set_cursor_buffer(input, buffer);
return GHOST_kSuccess;
}
GHOST_TSuccess GHOST_SystemWayland::hasCursorShape(GHOST_TStandardCursor cursorShape)
{
return GHOST_TSuccess(cursors.count(cursorShape) && !cursors.at(cursorShape).empty());
}
GHOST_TSuccess GHOST_SystemWayland::setCustomCursorShape(uint8_t *bitmap,
uint8_t *mask,
int sizex,
int sizey,
int hotX,
int hotY,
bool /*canInvertColor*/)
{
if (d->inputs.empty()) {
return GHOST_kFailure;
}
cursor_t *cursor = &d->inputs[0]->cursor;
static const int32_t stride = sizex * 4; /* ARGB */
cursor->file_buffer->size = size_t(stride * sizey);
#ifdef HAVE_MEMFD_CREATE
const int fd = memfd_create("blender-cursor-custom", MFD_CLOEXEC | MFD_ALLOW_SEALING);
if (fd >= 0) {
fcntl(fd, F_ADD_SEALS, F_SEAL_SHRINK | F_SEAL_SEAL);
}
#else
char *path = getenv("XDG_RUNTIME_DIR");
if (!path) {
errno = ENOENT;
return GHOST_kFailure;
}
char *tmpname;
asprintf(&tmpname, "%s/%s", path, "blender-XXXXXX");
const int fd = mkostemp(tmpname, O_CLOEXEC);
if (fd >= 0) {
unlink(tmpname);
}
free(tmpname);
#endif
if (fd < 0) {
return GHOST_kFailure;
}
if (posix_fallocate(fd, 0, int32_t(cursor->file_buffer->size)) != 0) {
return GHOST_kFailure;
}
cursor->file_buffer->data = mmap(
nullptr, cursor->file_buffer->size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (cursor->file_buffer->data == MAP_FAILED) {
close(fd);
return GHOST_kFailure;
}
struct wl_shm_pool *pool = wl_shm_create_pool(d->shm, fd, int32_t(cursor->file_buffer->size));
wl_buffer *buffer = wl_shm_pool_create_buffer(
pool, 0, sizex, sizey, stride, WL_SHM_FORMAT_ARGB8888);
wl_shm_pool_destroy(pool);
close(fd);
wl_buffer_add_listener(buffer, &cursor_buffer_listener, cursor);
static constexpr uint32_t black = 0xFF000000;
static constexpr uint32_t white = 0xFFFFFFFF;
static constexpr uint32_t transparent = 0x00000000;
uint8_t datab = 0, maskb = 0;
uint32_t *pixel;
for (int y = 0; y < sizey; ++y) {
pixel = &static_cast<uint32_t *>(cursor->file_buffer->data)[y * sizex];
for (int x = 0; x < sizex; ++x) {
if ((x % 8) == 0) {
datab = *bitmap++;
maskb = *mask++;
/* Reverse bit order. */
datab = uint8_t((datab * 0x0202020202ULL & 0x010884422010ULL) % 1023);
maskb = uint8_t((maskb * 0x0202020202ULL & 0x010884422010ULL) % 1023);
}
if (maskb & 0x80) {
*pixel++ = (datab & 0x80) ? white : black;
}
else {
*pixel++ = (datab & 0x80) ? white : transparent;
}
datab <<= 1;
maskb <<= 1;
}
}
cursor->buffer = buffer;
cursor->image.width = uint32_t(sizex);
cursor->image.height = uint32_t(sizey);
cursor->image.hotspot_x = uint32_t(hotX);
cursor->image.hotspot_y = uint32_t(hotY);
set_cursor_buffer(d->inputs[0], buffer);
return GHOST_kSuccess;
}
GHOST_TSuccess GHOST_SystemWayland::setCursorVisibility(bool visible)
{
if (d->inputs.empty()) {
return GHOST_kFailure;
}
input_t *input = d->inputs[0];
cursor_t *cursor = &input->cursor;
if (visible) {
if (!cursor->visible) {
set_cursor_buffer(input, cursor->buffer);
}
}
else {
if (cursor->visible) {
set_cursor_buffer(input, nullptr);
}
}
return GHOST_kSuccess;
}
GHOST_TSuccess GHOST_SystemWayland::setCursorGrab(const GHOST_TGrabCursorMode mode,
wl_surface *surface)
{
/* ignore, if the required protocols are not supported */
if (!d->relative_pointer_manager || !d->pointer_constraints) {
return GHOST_kFailure;
}
if (d->inputs.empty()) {
return GHOST_kFailure;
}
input_t *input = d->inputs[0];
switch (mode) {
case GHOST_kGrabDisable:
if (input->relative_pointer) {
zwp_relative_pointer_v1_destroy(input->relative_pointer);
input->relative_pointer = nullptr;
}
if (input->locked_pointer) {
zwp_locked_pointer_v1_destroy(input->locked_pointer);
input->locked_pointer = nullptr;
}
break;
case GHOST_kGrabNormal:
break;
case GHOST_kGrabWrap:
input->relative_pointer = zwp_relative_pointer_manager_v1_get_relative_pointer(
d->relative_pointer_manager, input->pointer);
zwp_relative_pointer_v1_add_listener(
input->relative_pointer, &relative_pointer_listener, input);
input->locked_pointer = zwp_pointer_constraints_v1_lock_pointer(
d->pointer_constraints,
surface,
input->pointer,
nullptr,
ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
break;
case GHOST_kGrabHide:
setCursorVisibility(false);
break;
}
return GHOST_kSuccess;
}
/** \} */
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