// SPDX-License-Identifier: Apache-2.0 // SPDX-FileCopyrightText: 2002-2006 Marcus Geelnard // SPDX-FileCopyrightText: 2006-2019 Camilla Löwy // SPDX-FileCopyrightText: 2023 The Ebitengine Authors //go:build (freebsd || linux || netbsd || openbsd) && !wayland #if !defined(_GNU_SOURCE) #define _GNU_SOURCE #endif #include "internal.h" #include #include #include #include #include #include #include #include #include #include #include // Action for EWMH client messages #define _NET_WM_STATE_REMOVE 0 #define _NET_WM_STATE_ADD 1 #define _NET_WM_STATE_TOGGLE 2 // Additional mouse button names for XButtonEvent #define Button6 6 #define Button7 7 // Motif WM hints flags #define MWM_HINTS_DECORATIONS 2 #define MWM_DECOR_ALL 1 #define _GLFW_XDND_VERSION 5 // Wait for data to arrive on any of the specified file descriptors // static GLFWbool waitForData(struct pollfd* fds, nfds_t count, double* timeout) { for (;;) { if (timeout) { const uint64_t base = _glfwPlatformGetTimerValue(); #if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__) const time_t seconds = (time_t) *timeout; const long nanoseconds = (long) ((*timeout - seconds) * 1e9); const struct timespec ts = { seconds, nanoseconds }; const int result = ppoll(fds, count, &ts, NULL); #elif defined(__NetBSD__) const time_t seconds = (time_t) *timeout; const long nanoseconds = (long) ((*timeout - seconds) * 1e9); const struct timespec ts = { seconds, nanoseconds }; const int result = pollts(fds, count, &ts, NULL); #else const int milliseconds = (int) (*timeout * 1e3); const int result = poll(fds, count, milliseconds); #endif const int error = errno; // clock_gettime may overwrite our error *timeout -= (_glfwPlatformGetTimerValue() - base) / (double) _glfwPlatformGetTimerFrequency(); if (result > 0) return GLFW_TRUE; else if (result == -1 && error != EINTR && error != EAGAIN) return GLFW_FALSE; else if (*timeout <= 0.0) return GLFW_FALSE; } else { const int result = poll(fds, count, -1); if (result > 0) return GLFW_TRUE; else if (result == -1 && errno != EINTR && errno != EAGAIN) return GLFW_FALSE; } } } // Wait for event data to arrive on the X11 display socket // This avoids blocking other threads via the per-display Xlib lock that also // covers GLX functions // static GLFWbool waitForX11Event(double* timeout) { struct pollfd fd = { ConnectionNumber(_glfw.x11.display), POLLIN }; while (!XPending(_glfw.x11.display)) { if (!waitForData(&fd, 1, timeout)) return GLFW_FALSE; } return GLFW_TRUE; } // Wait for event data to arrive on any event file descriptor // This avoids blocking other threads via the per-display Xlib lock that also // covers GLX functions // static GLFWbool waitForAnyEvent(double* timeout) { nfds_t count = 2; struct pollfd fds[3] = { { ConnectionNumber(_glfw.x11.display), POLLIN }, { _glfw.x11.emptyEventPipe[0], POLLIN } }; while (!XPending(_glfw.x11.display)) { if (!waitForData(fds, count, timeout)) return GLFW_FALSE; for (int i = 1; i < count; i++) { if (fds[i].revents & POLLIN) return GLFW_TRUE; } } return GLFW_TRUE; } // Writes a byte to the empty event pipe // static void writeEmptyEvent(void) { for (;;) { const char byte = 0; const ssize_t result = write(_glfw.x11.emptyEventPipe[1], &byte, 1); if (result == 1 || (result == -1 && errno != EINTR)) break; } } // Drains available data from the empty event pipe // static void drainEmptyEvents(void) { for (;;) { char dummy[64]; const ssize_t result = read(_glfw.x11.emptyEventPipe[0], dummy, sizeof(dummy)); if (result == -1 && errno != EINTR) break; } } // Waits until a VisibilityNotify event arrives for the specified window or the // timeout period elapses (ICCCM section 4.2.2) // static GLFWbool waitForVisibilityNotify(_GLFWwindow* window) { XEvent dummy; double timeout = 0.1; while (!XCheckTypedWindowEvent(_glfw.x11.display, window->x11.handle, VisibilityNotify, &dummy)) { if (!waitForX11Event(&timeout)) return GLFW_FALSE; } return GLFW_TRUE; } // Returns whether the window is iconified // static int getWindowState(_GLFWwindow* window) { int result = WithdrawnState; struct { CARD32 state; Window icon; } *state = NULL; if (_glfwGetWindowPropertyX11(window->x11.handle, _glfw.x11.WM_STATE, _glfw.x11.WM_STATE, (unsigned char**) &state) >= 2) { result = state->state; } if (state) XFree(state); return result; } // Returns whether the event is a selection event // static Bool isSelectionEvent(Display* display, XEvent* event, XPointer pointer) { if (event->xany.window != _glfw.x11.helperWindowHandle) return False; return event->type == SelectionRequest || event->type == SelectionNotify || event->type == SelectionClear; } // Returns whether it is a _NET_FRAME_EXTENTS event for the specified window // static Bool isFrameExtentsEvent(Display* display, XEvent* event, XPointer pointer) { _GLFWwindow* window = (_GLFWwindow*) pointer; return event->type == PropertyNotify && event->xproperty.state == PropertyNewValue && event->xproperty.window == window->x11.handle && event->xproperty.atom == _glfw.x11.NET_FRAME_EXTENTS; } // Returns whether it is a property event for the specified selection transfer // static Bool isSelPropNewValueNotify(Display* display, XEvent* event, XPointer pointer) { XEvent* notification = (XEvent*) pointer; return event->type == PropertyNotify && event->xproperty.state == PropertyNewValue && event->xproperty.window == notification->xselection.requestor && event->xproperty.atom == notification->xselection.property; } // Translates an X event modifier state mask // static int translateState(int state) { int mods = 0; if (state & ShiftMask) mods |= GLFW_MOD_SHIFT; if (state & ControlMask) mods |= GLFW_MOD_CONTROL; if (state & Mod1Mask) mods |= GLFW_MOD_ALT; if (state & Mod4Mask) mods |= GLFW_MOD_SUPER; if (state & LockMask) mods |= GLFW_MOD_CAPS_LOCK; if (state & Mod2Mask) mods |= GLFW_MOD_NUM_LOCK; return mods; } // Translates an X11 key code to a GLFW key token // static int translateKey(int scancode) { // Use the pre-filled LUT (see createKeyTables() in x11_init.c) if (scancode < 0 || scancode > 255) return GLFW_KEY_UNKNOWN; return _glfw.x11.keycodes[scancode]; } // Sends an EWMH or ICCCM event to the window manager // static void sendEventToWM(_GLFWwindow* window, Atom type, long a, long b, long c, long d, long e) { XEvent event = { ClientMessage }; event.xclient.window = window->x11.handle; event.xclient.format = 32; // Data is 32-bit longs event.xclient.message_type = type; event.xclient.data.l[0] = a; event.xclient.data.l[1] = b; event.xclient.data.l[2] = c; event.xclient.data.l[3] = d; event.xclient.data.l[4] = e; XSendEvent(_glfw.x11.display, _glfw.x11.root, False, SubstructureNotifyMask | SubstructureRedirectMask, &event); } // Updates the normal hints according to the window settings // static void updateNormalHints(_GLFWwindow* window, int width, int height) { XSizeHints* hints = XAllocSizeHints(); if (!window->monitor) { if (window->resizable) { if (window->minwidth != GLFW_DONT_CARE && window->minheight != GLFW_DONT_CARE) { hints->flags |= PMinSize; hints->min_width = window->minwidth; hints->min_height = window->minheight; } if (window->maxwidth != GLFW_DONT_CARE && window->maxheight != GLFW_DONT_CARE) { hints->flags |= PMaxSize; hints->max_width = window->maxwidth; hints->max_height = window->maxheight; } if (window->numer != GLFW_DONT_CARE && window->denom != GLFW_DONT_CARE) { hints->flags |= PAspect; hints->min_aspect.x = hints->max_aspect.x = window->numer; hints->min_aspect.y = hints->max_aspect.y = window->denom; } } else { hints->flags |= (PMinSize | PMaxSize); hints->min_width = hints->max_width = width; hints->min_height = hints->max_height = height; } } hints->flags |= PWinGravity; hints->win_gravity = StaticGravity; XSetWMNormalHints(_glfw.x11.display, window->x11.handle, hints); XFree(hints); } // Updates the full screen status of the window // static void updateWindowMode(_GLFWwindow* window) { if (window->monitor) { if (_glfw.x11.xinerama.available && _glfw.x11.NET_WM_FULLSCREEN_MONITORS) { sendEventToWM(window, _glfw.x11.NET_WM_FULLSCREEN_MONITORS, window->monitor->x11.index, window->monitor->x11.index, window->monitor->x11.index, window->monitor->x11.index, 0); } if (_glfw.x11.NET_WM_STATE && _glfw.x11.NET_WM_STATE_FULLSCREEN) { sendEventToWM(window, _glfw.x11.NET_WM_STATE, _NET_WM_STATE_ADD, _glfw.x11.NET_WM_STATE_FULLSCREEN, 0, 1, 0); } else { // This is the butcher's way of removing window decorations // Setting the override-redirect attribute on a window makes the // window manager ignore the window completely (ICCCM, section 4) // The good thing is that this makes undecorated full screen windows // easy to do; the bad thing is that we have to do everything // manually and some things (like iconify/restore) won't work at // all, as those are tasks usually performed by the window manager XSetWindowAttributes attributes; attributes.override_redirect = True; XChangeWindowAttributes(_glfw.x11.display, window->x11.handle, CWOverrideRedirect, &attributes); window->x11.overrideRedirect = GLFW_TRUE; } // Enable compositor bypass if (!window->x11.transparent) { const unsigned long value = 1; XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_BYPASS_COMPOSITOR, XA_CARDINAL, 32, PropModeReplace, (unsigned char*) &value, 1); } } else { if (_glfw.x11.xinerama.available && _glfw.x11.NET_WM_FULLSCREEN_MONITORS) { XDeleteProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_FULLSCREEN_MONITORS); } if (_glfw.x11.NET_WM_STATE && _glfw.x11.NET_WM_STATE_FULLSCREEN) { sendEventToWM(window, _glfw.x11.NET_WM_STATE, _NET_WM_STATE_REMOVE, _glfw.x11.NET_WM_STATE_FULLSCREEN, 0, 1, 0); } else { XSetWindowAttributes attributes; attributes.override_redirect = False; XChangeWindowAttributes(_glfw.x11.display, window->x11.handle, CWOverrideRedirect, &attributes); window->x11.overrideRedirect = GLFW_FALSE; } // Disable compositor bypass if (!window->x11.transparent) { XDeleteProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_BYPASS_COMPOSITOR); } } } // Decode a Unicode code point from a UTF-8 stream // Based on cutef8 by Jeff Bezanson (Public Domain) // #if defined(X_HAVE_UTF8_STRING) static uint32_t decodeUTF8(const char** s) { uint32_t codepoint = 0, count = 0; static const uint32_t offsets[] = { 0x00000000u, 0x00003080u, 0x000e2080u, 0x03c82080u, 0xfa082080u, 0x82082080u }; do { codepoint = (codepoint << 6) + (unsigned char) **s; (*s)++; count++; } while ((**s & 0xc0) == 0x80); assert(count <= 6); return codepoint - offsets[count - 1]; } #endif /*X_HAVE_UTF8_STRING*/ // Convert the specified Latin-1 string to UTF-8 // static char* convertLatin1toUTF8(const char* source) { size_t size = 1; const char* sp; for (sp = source; *sp; sp++) size += (*sp & 0x80) ? 2 : 1; char* target = calloc(size, 1); char* tp = target; for (sp = source; *sp; sp++) tp += _glfwEncodeUTF8(tp, *sp); return target; } // Updates the cursor image according to its cursor mode // static void updateCursorImage(_GLFWwindow* window) { if (window->cursorMode == GLFW_CURSOR_NORMAL) { if (window->cursor) { XDefineCursor(_glfw.x11.display, window->x11.handle, window->cursor->x11.handle); } else XUndefineCursor(_glfw.x11.display, window->x11.handle); } else { XDefineCursor(_glfw.x11.display, window->x11.handle, _glfw.x11.hiddenCursorHandle); } } // Enable XI2 raw mouse motion events // static void enableRawMouseMotion(_GLFWwindow* window) { XIEventMask em; unsigned char mask[XIMaskLen(XI_RawMotion)] = { 0 }; em.deviceid = XIAllMasterDevices; em.mask_len = sizeof(mask); em.mask = mask; XISetMask(mask, XI_RawMotion); XISelectEvents(_glfw.x11.display, _glfw.x11.root, &em, 1); } // Disable XI2 raw mouse motion events // static void disableRawMouseMotion(_GLFWwindow* window) { XIEventMask em; unsigned char mask[] = { 0 }; em.deviceid = XIAllMasterDevices; em.mask_len = sizeof(mask); em.mask = mask; XISelectEvents(_glfw.x11.display, _glfw.x11.root, &em, 1); } // Apply disabled cursor mode to a focused window // static void disableCursor(_GLFWwindow* window) { if (window->rawMouseMotion) enableRawMouseMotion(window); _glfw.x11.disabledCursorWindow = window; _glfwPlatformGetCursorPos(window, &_glfw.x11.restoreCursorPosX, &_glfw.x11.restoreCursorPosY); updateCursorImage(window); _glfwCenterCursorInContentArea(window); XGrabPointer(_glfw.x11.display, window->x11.handle, True, ButtonPressMask | ButtonReleaseMask | PointerMotionMask, GrabModeAsync, GrabModeAsync, window->x11.handle, _glfw.x11.hiddenCursorHandle, CurrentTime); } // Exit disabled cursor mode for the specified window // static void enableCursor(_GLFWwindow* window) { if (window->rawMouseMotion) disableRawMouseMotion(window); _glfw.x11.disabledCursorWindow = NULL; XUngrabPointer(_glfw.x11.display, CurrentTime); _glfwPlatformSetCursorPos(window, _glfw.x11.restoreCursorPosX, _glfw.x11.restoreCursorPosY); updateCursorImage(window); } // Create the X11 window (and its colormap) // static GLFWbool createNativeWindow(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, Visual* visual, int depth) { int width = wndconfig->width; int height = wndconfig->height; if (wndconfig->scaleToMonitor) { width *= _glfw.x11.contentScaleX; height *= _glfw.x11.contentScaleY; } // Create a colormap based on the visual used by the current context window->x11.colormap = XCreateColormap(_glfw.x11.display, _glfw.x11.root, visual, AllocNone); window->x11.transparent = _glfwIsVisualTransparentX11(visual); XSetWindowAttributes wa = { 0 }; wa.colormap = window->x11.colormap; wa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask | ExposureMask | FocusChangeMask | VisibilityChangeMask | EnterWindowMask | LeaveWindowMask | PropertyChangeMask; _glfwGrabErrorHandlerX11(); window->x11.parent = _glfw.x11.root; window->x11.handle = XCreateWindow(_glfw.x11.display, _glfw.x11.root, 0, 0, // Position width, height, 0, // Border width depth, // Color depth InputOutput, visual, CWBorderPixel | CWColormap | CWEventMask, &wa); _glfwReleaseErrorHandlerX11(); if (!window->x11.handle) { _glfwInputErrorX11(GLFW_PLATFORM_ERROR, "X11: Failed to create window"); return GLFW_FALSE; } XSaveContext(_glfw.x11.display, window->x11.handle, _glfw.x11.context, (XPointer) window); if (!wndconfig->decorated) _glfwPlatformSetWindowDecorated(window, GLFW_FALSE); if (_glfw.x11.NET_WM_STATE && !window->monitor) { Atom states[3]; int count = 0; if (wndconfig->floating) { if (_glfw.x11.NET_WM_STATE_ABOVE) states[count++] = _glfw.x11.NET_WM_STATE_ABOVE; } if (wndconfig->maximized) { if (_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT && _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ) { states[count++] = _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT; states[count++] = _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ; window->x11.maximized = GLFW_TRUE; } } if (count) { XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_STATE, XA_ATOM, 32, PropModeReplace, (unsigned char*) states, count); } } // Declare the WM protocols supported by GLFW { Atom protocols[] = { _glfw.x11.WM_DELETE_WINDOW, _glfw.x11.NET_WM_PING }; XSetWMProtocols(_glfw.x11.display, window->x11.handle, protocols, sizeof(protocols) / sizeof(Atom)); } // Declare our PID { const long pid = getpid(); XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_PID, XA_CARDINAL, 32, PropModeReplace, (unsigned char*) &pid, 1); } if (_glfw.x11.NET_WM_WINDOW_TYPE && _glfw.x11.NET_WM_WINDOW_TYPE_NORMAL) { Atom type = _glfw.x11.NET_WM_WINDOW_TYPE_NORMAL; XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_WINDOW_TYPE, XA_ATOM, 32, PropModeReplace, (unsigned char*) &type, 1); } // Set ICCCM WM_HINTS property { XWMHints* hints = XAllocWMHints(); if (!hints) { _glfwInputError(GLFW_OUT_OF_MEMORY, "X11: Failed to allocate WM hints"); return GLFW_FALSE; } hints->flags = StateHint; hints->initial_state = NormalState; XSetWMHints(_glfw.x11.display, window->x11.handle, hints); XFree(hints); } updateNormalHints(window, width, height); // Set ICCCM WM_CLASS property { XClassHint* hint = XAllocClassHint(); if (strlen(wndconfig->x11.instanceName) && strlen(wndconfig->x11.className)) { hint->res_name = (char*) wndconfig->x11.instanceName; hint->res_class = (char*) wndconfig->x11.className; } else { const char* resourceName = getenv("RESOURCE_NAME"); if (resourceName && strlen(resourceName)) hint->res_name = (char*) resourceName; else if (strlen(wndconfig->title)) hint->res_name = (char*) wndconfig->title; else hint->res_name = (char*) "glfw-application"; if (strlen(wndconfig->title)) hint->res_class = (char*) wndconfig->title; else hint->res_class = (char*) "GLFW-Application"; } XSetClassHint(_glfw.x11.display, window->x11.handle, hint); XFree(hint); } // Announce support for Xdnd (drag and drop) { const Atom version = _GLFW_XDND_VERSION; XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.XdndAware, XA_ATOM, 32, PropModeReplace, (unsigned char*) &version, 1); } _glfwPlatformSetWindowTitle(window, wndconfig->title); if (_glfw.x11.im) { window->x11.ic = XCreateIC(_glfw.x11.im, XNInputStyle, XIMPreeditNothing | XIMStatusNothing, XNClientWindow, window->x11.handle, XNFocusWindow, window->x11.handle, NULL); } if (window->x11.ic) { unsigned long filter = 0; if (XGetICValues(window->x11.ic, XNFilterEvents, &filter, NULL) == NULL) XSelectInput(_glfw.x11.display, window->x11.handle, wa.event_mask | filter); } _glfwPlatformGetWindowPos(window, &window->x11.xpos, &window->x11.ypos); _glfwPlatformGetWindowSize(window, &window->x11.width, &window->x11.height); return GLFW_TRUE; } // Set the specified property to the selection converted to the requested target // static Atom writeTargetToProperty(const XSelectionRequestEvent* request) { int i; char* selectionString = NULL; const Atom formats[] = { _glfw.x11.UTF8_STRING, XA_STRING }; const int formatCount = sizeof(formats) / sizeof(formats[0]); if (request->selection == _glfw.x11.PRIMARY) selectionString = _glfw.x11.primarySelectionString; else selectionString = _glfw.x11.clipboardString; if (request->property == None) { // The requester is a legacy client (ICCCM section 2.2) // We don't support legacy clients, so fail here return None; } if (request->target == _glfw.x11.TARGETS) { // The list of supported targets was requested const Atom targets[] = { _glfw.x11.TARGETS, _glfw.x11.MULTIPLE, _glfw.x11.UTF8_STRING, XA_STRING }; XChangeProperty(_glfw.x11.display, request->requestor, request->property, XA_ATOM, 32, PropModeReplace, (unsigned char*) targets, sizeof(targets) / sizeof(targets[0])); return request->property; } if (request->target == _glfw.x11.MULTIPLE) { // Multiple conversions were requested Atom* targets; unsigned long i, count; count = _glfwGetWindowPropertyX11(request->requestor, request->property, _glfw.x11.ATOM_PAIR, (unsigned char**) &targets); for (i = 0; i < count; i += 2) { int j; for (j = 0; j < formatCount; j++) { if (targets[i] == formats[j]) break; } if (j < formatCount) { XChangeProperty(_glfw.x11.display, request->requestor, targets[i + 1], targets[i], 8, PropModeReplace, (unsigned char *) selectionString, strlen(selectionString)); } else targets[i + 1] = None; } XChangeProperty(_glfw.x11.display, request->requestor, request->property, _glfw.x11.ATOM_PAIR, 32, PropModeReplace, (unsigned char*) targets, count); XFree(targets); return request->property; } if (request->target == _glfw.x11.SAVE_TARGETS) { // The request is a check whether we support SAVE_TARGETS // It should be handled as a no-op side effect target XChangeProperty(_glfw.x11.display, request->requestor, request->property, _glfw.x11.NULL_, 32, PropModeReplace, NULL, 0); return request->property; } // Conversion to a data target was requested for (i = 0; i < formatCount; i++) { if (request->target == formats[i]) { // The requested target is one we support XChangeProperty(_glfw.x11.display, request->requestor, request->property, request->target, 8, PropModeReplace, (unsigned char *) selectionString, strlen(selectionString)); return request->property; } } // The requested target is not supported return None; } static void handleSelectionRequest(XEvent* event) { const XSelectionRequestEvent* request = &event->xselectionrequest; XEvent reply = { SelectionNotify }; reply.xselection.property = writeTargetToProperty(request); reply.xselection.display = request->display; reply.xselection.requestor = request->requestor; reply.xselection.selection = request->selection; reply.xselection.target = request->target; reply.xselection.time = request->time; XSendEvent(_glfw.x11.display, request->requestor, False, 0, &reply); } static const char* getSelectionString(Atom selection) { char** selectionString = NULL; const Atom targets[] = { _glfw.x11.UTF8_STRING, XA_STRING }; const size_t targetCount = sizeof(targets) / sizeof(targets[0]); if (selection == _glfw.x11.PRIMARY) selectionString = &_glfw.x11.primarySelectionString; else selectionString = &_glfw.x11.clipboardString; if (XGetSelectionOwner(_glfw.x11.display, selection) == _glfw.x11.helperWindowHandle) { // Instead of doing a large number of X round-trips just to put this // string into a window property and then read it back, just return it return *selectionString; } free(*selectionString); *selectionString = NULL; for (size_t i = 0; i < targetCount; i++) { char* data; Atom actualType; int actualFormat; unsigned long itemCount, bytesAfter; XEvent notification, dummy; XConvertSelection(_glfw.x11.display, selection, targets[i], _glfw.x11.GLFW_SELECTION, _glfw.x11.helperWindowHandle, CurrentTime); while (!XCheckTypedWindowEvent(_glfw.x11.display, _glfw.x11.helperWindowHandle, SelectionNotify, ¬ification)) { waitForX11Event(NULL); } if (notification.xselection.property == None) continue; XCheckIfEvent(_glfw.x11.display, &dummy, isSelPropNewValueNotify, (XPointer) ¬ification); XGetWindowProperty(_glfw.x11.display, notification.xselection.requestor, notification.xselection.property, 0, LONG_MAX, True, AnyPropertyType, &actualType, &actualFormat, &itemCount, &bytesAfter, (unsigned char**) &data); if (actualType == _glfw.x11.INCR) { size_t size = 1; char* string = NULL; for (;;) { while (!XCheckIfEvent(_glfw.x11.display, &dummy, isSelPropNewValueNotify, (XPointer) ¬ification)) { waitForX11Event(NULL); } XFree(data); XGetWindowProperty(_glfw.x11.display, notification.xselection.requestor, notification.xselection.property, 0, LONG_MAX, True, AnyPropertyType, &actualType, &actualFormat, &itemCount, &bytesAfter, (unsigned char**) &data); if (itemCount) { size += itemCount; string = realloc(string, size); string[size - itemCount - 1] = '\0'; strcat(string, data); } if (!itemCount) { if (string) { if (targets[i] == XA_STRING) { *selectionString = convertLatin1toUTF8(string); free(string); } else *selectionString = string; } break; } } } else if (actualType == targets[i]) { if (targets[i] == XA_STRING) *selectionString = convertLatin1toUTF8(data); else *selectionString = _glfw_strdup(data); } XFree(data); if (*selectionString) break; } if (!*selectionString) { _glfwInputError(GLFW_FORMAT_UNAVAILABLE, "X11: Failed to convert selection to string"); } return *selectionString; } // Make the specified window and its video mode active on its monitor // static void acquireMonitor(_GLFWwindow* window) { if (_glfw.x11.saver.count == 0) { // Remember old screen saver settings XGetScreenSaver(_glfw.x11.display, &_glfw.x11.saver.timeout, &_glfw.x11.saver.interval, &_glfw.x11.saver.blanking, &_glfw.x11.saver.exposure); // Disable screen saver XSetScreenSaver(_glfw.x11.display, 0, 0, DontPreferBlanking, DefaultExposures); } if (!window->monitor->window) _glfw.x11.saver.count++; _glfwSetVideoModeX11(window->monitor, &window->videoMode); if (window->x11.overrideRedirect) { int xpos, ypos; GLFWvidmode mode; // Manually position the window over its monitor _glfwPlatformGetMonitorPos(window->monitor, &xpos, &ypos); _glfwPlatformGetVideoMode(window->monitor, &mode); XMoveResizeWindow(_glfw.x11.display, window->x11.handle, xpos, ypos, mode.width, mode.height); } _glfwInputMonitorWindow(window->monitor, window); } // Remove the window and restore the original video mode // static void releaseMonitor(_GLFWwindow* window) { if (window->monitor->window != window) return; _glfwInputMonitorWindow(window->monitor, NULL); _glfwRestoreVideoModeX11(window->monitor); _glfw.x11.saver.count--; if (_glfw.x11.saver.count == 0) { // Restore old screen saver settings XSetScreenSaver(_glfw.x11.display, _glfw.x11.saver.timeout, _glfw.x11.saver.interval, _glfw.x11.saver.blanking, _glfw.x11.saver.exposure); } } // Process the specified X event // static void processEvent(XEvent *event) { int keycode = 0; Bool filtered = False; // HACK: Save scancode as some IMs clear the field in XFilterEvent if (event->type == KeyPress || event->type == KeyRelease) keycode = event->xkey.keycode; if (_glfw.x11.im) filtered = XFilterEvent(event, None); if (_glfw.x11.randr.available) { if (event->type == _glfw.x11.randr.eventBase + RRNotify) { XRRUpdateConfiguration(event); _glfwPollMonitorsX11(); return; } } if (_glfw.x11.xkb.available) { if (event->type == _glfw.x11.xkb.eventBase + XkbEventCode) { if (((XkbEvent*) event)->any.xkb_type == XkbStateNotify && (((XkbEvent*) event)->state.changed & XkbGroupStateMask)) { _glfw.x11.xkb.group = ((XkbEvent*) event)->state.group; } return; } } if (event->type == GenericEvent) { if (_glfw.x11.xi.available) { _GLFWwindow* window = _glfw.x11.disabledCursorWindow; if (window && window->rawMouseMotion && event->xcookie.extension == _glfw.x11.xi.majorOpcode && XGetEventData(_glfw.x11.display, &event->xcookie) && event->xcookie.evtype == XI_RawMotion) { XIRawEvent* re = event->xcookie.data; if (re->valuators.mask_len) { const double* values = re->raw_values; double xpos = window->virtualCursorPosX; double ypos = window->virtualCursorPosY; if (XIMaskIsSet(re->valuators.mask, 0)) { xpos += *values; values++; } if (XIMaskIsSet(re->valuators.mask, 1)) ypos += *values; _glfwInputCursorPos(window, xpos, ypos); } } XFreeEventData(_glfw.x11.display, &event->xcookie); } return; } if (event->type == SelectionRequest) { handleSelectionRequest(event); return; } _GLFWwindow* window = NULL; if (XFindContext(_glfw.x11.display, event->xany.window, _glfw.x11.context, (XPointer*) &window) != 0) { // This is an event for a window that has already been destroyed return; } switch (event->type) { case ReparentNotify: { window->x11.parent = event->xreparent.parent; return; } case KeyPress: { const int key = translateKey(keycode); const int mods = translateState(event->xkey.state); const int plain = !(mods & (GLFW_MOD_CONTROL | GLFW_MOD_ALT)); if (window->x11.ic) { // HACK: Do not report the key press events duplicated by XIM // Duplicate key releases are filtered out implicitly by // the GLFW key repeat logic in _glfwInputKey // A timestamp per key is used to handle simultaneous keys // NOTE: Always allow the first event for each key through // (the server never sends a timestamp of zero) // NOTE: Timestamp difference is compared to handle wrap-around Time diff = event->xkey.time - window->x11.keyPressTimes[keycode]; if (diff == event->xkey.time || (diff > 0 && diff < ((Time)1 << 31))) { if (keycode) _glfwInputKey(window, key, keycode, GLFW_PRESS, mods); window->x11.keyPressTimes[keycode] = event->xkey.time; } if (!filtered) { int count; Status status; #if defined(X_HAVE_UTF8_STRING) char buffer[100]; char* chars = buffer; count = Xutf8LookupString(window->x11.ic, &event->xkey, buffer, sizeof(buffer) - 1, NULL, &status); if (status == XBufferOverflow) { chars = calloc(count + 1, 1); count = Xutf8LookupString(window->x11.ic, &event->xkey, chars, count, NULL, &status); } if (status == XLookupChars || status == XLookupBoth) { const char* c = chars; chars[count] = '\0'; while (c - chars < count) _glfwInputChar(window, decodeUTF8(&c), mods, plain); } #else /*X_HAVE_UTF8_STRING*/ wchar_t buffer[16]; wchar_t* chars = buffer; count = XwcLookupString(window->x11.ic, &event->xkey, buffer, sizeof(buffer) / sizeof(wchar_t), NULL, &status); if (status == XBufferOverflow) { chars = calloc(count, sizeof(wchar_t)); count = XwcLookupString(window->x11.ic, &event->xkey, chars, count, NULL, &status); } if (status == XLookupChars || status == XLookupBoth) { int i; for (i = 0; i < count; i++) _glfwInputChar(window, chars[i], mods, plain); } #endif /*X_HAVE_UTF8_STRING*/ if (chars != buffer) free(chars); } } else { KeySym keysym; XLookupString(&event->xkey, NULL, 0, &keysym, NULL); _glfwInputKey(window, key, keycode, GLFW_PRESS, mods); const uint32_t codepoint = _glfwKeySym2Unicode(keysym); if (codepoint != GLFW_INVALID_CODEPOINT) _glfwInputChar(window, codepoint, mods, plain); } return; } case KeyRelease: { const int key = translateKey(keycode); const int mods = translateState(event->xkey.state); if (!_glfw.x11.xkb.detectable) { // HACK: Key repeat events will arrive as KeyRelease/KeyPress // pairs with similar or identical time stamps // The key repeat logic in _glfwInputKey expects only key // presses to repeat, so detect and discard release events if (XEventsQueued(_glfw.x11.display, QueuedAfterReading)) { XEvent next; XPeekEvent(_glfw.x11.display, &next); if (next.type == KeyPress && next.xkey.window == event->xkey.window && next.xkey.keycode == keycode) { // HACK: The time of repeat events sometimes doesn't // match that of the press event, so add an // epsilon // Toshiyuki Takahashi can press a button // 16 times per second so it's fairly safe to // assume that no human is pressing the key 50 // times per second (value is ms) if ((next.xkey.time - event->xkey.time) < 20) { // This is very likely a server-generated key repeat // event, so ignore it return; } } } } _glfwInputKey(window, key, keycode, GLFW_RELEASE, mods); return; } case ButtonPress: { const int mods = translateState(event->xbutton.state); if (event->xbutton.button == Button1) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_LEFT, GLFW_PRESS, mods); else if (event->xbutton.button == Button2) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_MIDDLE, GLFW_PRESS, mods); else if (event->xbutton.button == Button3) _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_RIGHT, GLFW_PRESS, mods); // Modern X provides scroll events as mouse button presses else if (event->xbutton.button == Button4) _glfwInputScroll(window, 0.0, 1.0); else if (event->xbutton.button == Button5) _glfwInputScroll(window, 0.0, -1.0); else if (event->xbutton.button == Button6) _glfwInputScroll(window, 1.0, 0.0); else if (event->xbutton.button == Button7) _glfwInputScroll(window, -1.0, 0.0); else { // Additional buttons after 7 are treated as regular buttons // We subtract 4 to fill the gap left by scroll input above _glfwInputMouseClick(window, event->xbutton.button - Button1 - 4, GLFW_PRESS, mods); } return; } case ButtonRelease: { const int mods = translateState(event->xbutton.state); if (event->xbutton.button == Button1) { _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_LEFT, GLFW_RELEASE, mods); } else if (event->xbutton.button == Button2) { _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_MIDDLE, GLFW_RELEASE, mods); } else if (event->xbutton.button == Button3) { _glfwInputMouseClick(window, GLFW_MOUSE_BUTTON_RIGHT, GLFW_RELEASE, mods); } else if (event->xbutton.button > Button7) { // Additional buttons after 7 are treated as regular buttons // We subtract 4 to fill the gap left by scroll input above _glfwInputMouseClick(window, event->xbutton.button - Button1 - 4, GLFW_RELEASE, mods); } return; } case EnterNotify: { // XEnterWindowEvent is XCrossingEvent const int x = event->xcrossing.x; const int y = event->xcrossing.y; // HACK: This is a workaround for WMs (KWM, Fluxbox) that otherwise // ignore the defined cursor for hidden cursor mode if (window->cursorMode == GLFW_CURSOR_HIDDEN) updateCursorImage(window); _glfwInputCursorEnter(window, GLFW_TRUE); _glfwInputCursorPos(window, x, y); window->x11.lastCursorPosX = x; window->x11.lastCursorPosY = y; return; } case LeaveNotify: { _glfwInputCursorEnter(window, GLFW_FALSE); return; } case MotionNotify: { const int x = event->xmotion.x; const int y = event->xmotion.y; if (x != window->x11.warpCursorPosX || y != window->x11.warpCursorPosY) { // The cursor was moved by something other than GLFW if (window->cursorMode == GLFW_CURSOR_DISABLED) { if (_glfw.x11.disabledCursorWindow != window) return; if (window->rawMouseMotion) return; const int dx = x - window->x11.lastCursorPosX; const int dy = y - window->x11.lastCursorPosY; _glfwInputCursorPos(window, window->virtualCursorPosX + dx, window->virtualCursorPosY + dy); } else _glfwInputCursorPos(window, x, y); } window->x11.lastCursorPosX = x; window->x11.lastCursorPosY = y; return; } case ConfigureNotify: { if (event->xconfigure.width != window->x11.width || event->xconfigure.height != window->x11.height) { _glfwInputFramebufferSize(window, event->xconfigure.width, event->xconfigure.height); _glfwInputWindowSize(window, event->xconfigure.width, event->xconfigure.height); window->x11.width = event->xconfigure.width; window->x11.height = event->xconfigure.height; } int xpos = event->xconfigure.x; int ypos = event->xconfigure.y; // NOTE: ConfigureNotify events from the server are in local // coordinates, so if we are reparented we need to translate // the position into root (screen) coordinates if (!event->xany.send_event && window->x11.parent != _glfw.x11.root) { _glfwGrabErrorHandlerX11(); Window dummy; XTranslateCoordinates(_glfw.x11.display, window->x11.parent, _glfw.x11.root, xpos, ypos, &xpos, &ypos, &dummy); _glfwReleaseErrorHandlerX11(); if (_glfw.x11.errorCode == BadWindow) return; } if (xpos != window->x11.xpos || ypos != window->x11.ypos) { _glfwInputWindowPos(window, xpos, ypos); window->x11.xpos = xpos; window->x11.ypos = ypos; } return; } case ClientMessage: { // Custom client message, probably from the window manager if (filtered) return; if (event->xclient.message_type == None) return; if (event->xclient.message_type == _glfw.x11.WM_PROTOCOLS) { const Atom protocol = event->xclient.data.l[0]; if (protocol == None) return; if (protocol == _glfw.x11.WM_DELETE_WINDOW) { // The window manager was asked to close the window, for // example by the user pressing a 'close' window decoration // button _glfwInputWindowCloseRequest(window); } else if (protocol == _glfw.x11.NET_WM_PING) { // The window manager is pinging the application to ensure // it's still responding to events XEvent reply = *event; reply.xclient.window = _glfw.x11.root; XSendEvent(_glfw.x11.display, _glfw.x11.root, False, SubstructureNotifyMask | SubstructureRedirectMask, &reply); } } else if (event->xclient.message_type == _glfw.x11.XdndEnter) { // A drag operation has entered the window unsigned long i, count; Atom* formats = NULL; const GLFWbool list = event->xclient.data.l[1] & 1; _glfw.x11.xdnd.source = event->xclient.data.l[0]; _glfw.x11.xdnd.version = event->xclient.data.l[1] >> 24; _glfw.x11.xdnd.format = None; if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION) return; if (list) { count = _glfwGetWindowPropertyX11(_glfw.x11.xdnd.source, _glfw.x11.XdndTypeList, XA_ATOM, (unsigned char**) &formats); } else { count = 3; formats = (Atom*) event->xclient.data.l + 2; } for (i = 0; i < count; i++) { if (formats[i] == _glfw.x11.text_uri_list) { _glfw.x11.xdnd.format = _glfw.x11.text_uri_list; break; } } if (list && formats) XFree(formats); } else if (event->xclient.message_type == _glfw.x11.XdndDrop) { // The drag operation has finished by dropping on the window Time time = CurrentTime; if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION) return; if (_glfw.x11.xdnd.format) { if (_glfw.x11.xdnd.version >= 1) time = event->xclient.data.l[2]; // Request the chosen format from the source window XConvertSelection(_glfw.x11.display, _glfw.x11.XdndSelection, _glfw.x11.xdnd.format, _glfw.x11.XdndSelection, window->x11.handle, time); } else if (_glfw.x11.xdnd.version >= 2) { XEvent reply = { ClientMessage }; reply.xclient.window = _glfw.x11.xdnd.source; reply.xclient.message_type = _glfw.x11.XdndFinished; reply.xclient.format = 32; reply.xclient.data.l[0] = window->x11.handle; reply.xclient.data.l[1] = 0; // The drag was rejected reply.xclient.data.l[2] = None; XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source, False, NoEventMask, &reply); XFlush(_glfw.x11.display); } } else if (event->xclient.message_type == _glfw.x11.XdndPosition) { // The drag operation has moved over the window const int xabs = (event->xclient.data.l[2] >> 16) & 0xffff; const int yabs = (event->xclient.data.l[2]) & 0xffff; Window dummy; int xpos, ypos; if (_glfw.x11.xdnd.version > _GLFW_XDND_VERSION) return; XTranslateCoordinates(_glfw.x11.display, _glfw.x11.root, window->x11.handle, xabs, yabs, &xpos, &ypos, &dummy); _glfwInputCursorPos(window, xpos, ypos); XEvent reply = { ClientMessage }; reply.xclient.window = _glfw.x11.xdnd.source; reply.xclient.message_type = _glfw.x11.XdndStatus; reply.xclient.format = 32; reply.xclient.data.l[0] = window->x11.handle; reply.xclient.data.l[2] = 0; // Specify an empty rectangle reply.xclient.data.l[3] = 0; if (_glfw.x11.xdnd.format) { // Reply that we are ready to copy the dragged data reply.xclient.data.l[1] = 1; // Accept with no rectangle if (_glfw.x11.xdnd.version >= 2) reply.xclient.data.l[4] = _glfw.x11.XdndActionCopy; } XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source, False, NoEventMask, &reply); XFlush(_glfw.x11.display); } return; } case SelectionNotify: { if (event->xselection.property == _glfw.x11.XdndSelection) { // The converted data from the drag operation has arrived char* data; const unsigned long result = _glfwGetWindowPropertyX11(event->xselection.requestor, event->xselection.property, event->xselection.target, (unsigned char**) &data); if (result) { int i, count; char** paths = _glfwParseUriList(data, &count); _glfwInputDrop(window, count, (const char**) paths); for (i = 0; i < count; i++) free(paths[i]); free(paths); } if (data) XFree(data); if (_glfw.x11.xdnd.version >= 2) { XEvent reply = { ClientMessage }; reply.xclient.window = _glfw.x11.xdnd.source; reply.xclient.message_type = _glfw.x11.XdndFinished; reply.xclient.format = 32; reply.xclient.data.l[0] = window->x11.handle; reply.xclient.data.l[1] = result; reply.xclient.data.l[2] = _glfw.x11.XdndActionCopy; XSendEvent(_glfw.x11.display, _glfw.x11.xdnd.source, False, NoEventMask, &reply); XFlush(_glfw.x11.display); } } return; } case FocusIn: { if (event->xfocus.mode == NotifyGrab || event->xfocus.mode == NotifyUngrab) { // Ignore focus events from popup indicator windows, window menu // key chords and window dragging return; } if (window->cursorMode == GLFW_CURSOR_DISABLED) disableCursor(window); if (window->x11.ic) XSetICFocus(window->x11.ic); _glfwInputWindowFocus(window, GLFW_TRUE); return; } case FocusOut: { if (event->xfocus.mode == NotifyGrab || event->xfocus.mode == NotifyUngrab) { // Ignore focus events from popup indicator windows, window menu // key chords and window dragging return; } if (window->cursorMode == GLFW_CURSOR_DISABLED) enableCursor(window); if (window->x11.ic) XUnsetICFocus(window->x11.ic); if (window->monitor && window->autoIconify) _glfwPlatformIconifyWindow(window); _glfwInputWindowFocus(window, GLFW_FALSE); return; } case Expose: { _glfwInputWindowDamage(window); return; } case PropertyNotify: { if (event->xproperty.state != PropertyNewValue) return; if (event->xproperty.atom == _glfw.x11.WM_STATE) { const int state = getWindowState(window); if (state != IconicState && state != NormalState) return; const GLFWbool iconified = (state == IconicState); if (window->x11.iconified != iconified) { if (window->monitor) { if (iconified) releaseMonitor(window); else acquireMonitor(window); } window->x11.iconified = iconified; _glfwInputWindowIconify(window, iconified); } } else if (event->xproperty.atom == _glfw.x11.NET_WM_STATE) { const GLFWbool maximized = _glfwPlatformWindowMaximized(window); if (window->x11.maximized != maximized) { window->x11.maximized = maximized; _glfwInputWindowMaximize(window, maximized); } } return; } case DestroyNotify: return; } } ////////////////////////////////////////////////////////////////////////// ////// GLFW internal API ////// ////////////////////////////////////////////////////////////////////////// // Retrieve a single window property of the specified type // Inspired by fghGetWindowProperty from freeglut // unsigned long _glfwGetWindowPropertyX11(Window window, Atom property, Atom type, unsigned char** value) { Atom actualType; int actualFormat; unsigned long itemCount, bytesAfter; XGetWindowProperty(_glfw.x11.display, window, property, 0, LONG_MAX, False, type, &actualType, &actualFormat, &itemCount, &bytesAfter, value); return itemCount; } GLFWbool _glfwIsVisualTransparentX11(Visual* visual) { if (!_glfw.x11.xrender.available) return GLFW_FALSE; XRenderPictFormat* pf = XRenderFindVisualFormat(_glfw.x11.display, visual); return pf && pf->direct.alphaMask; } // Push contents of our selection to clipboard manager // void _glfwPushSelectionToManagerX11(void) { XConvertSelection(_glfw.x11.display, _glfw.x11.CLIPBOARD_MANAGER, _glfw.x11.SAVE_TARGETS, None, _glfw.x11.helperWindowHandle, CurrentTime); for (;;) { XEvent event; while (XCheckIfEvent(_glfw.x11.display, &event, isSelectionEvent, NULL)) { switch (event.type) { case SelectionRequest: handleSelectionRequest(&event); break; case SelectionNotify: { if (event.xselection.target == _glfw.x11.SAVE_TARGETS) { // This means one of two things; either the selection // was not owned, which means there is no clipboard // manager, or the transfer to the clipboard manager has // completed // In either case, it means we are done here return; } break; } } } waitForX11Event(NULL); } } ////////////////////////////////////////////////////////////////////////// ////// GLFW platform API ////// ////////////////////////////////////////////////////////////////////////// int _glfwPlatformCreateWindow(_GLFWwindow* window, const _GLFWwndconfig* wndconfig, const _GLFWctxconfig* ctxconfig, const _GLFWfbconfig* fbconfig) { Visual* visual = NULL; int depth; if (ctxconfig->client != GLFW_NO_API) { if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API) { if (!_glfwInitGLX()) return GLFW_FALSE; if (!_glfwChooseVisualGLX(wndconfig, ctxconfig, fbconfig, &visual, &depth)) return GLFW_FALSE; } else if (ctxconfig->source == GLFW_EGL_CONTEXT_API) { if (!_glfwInitEGL()) return GLFW_FALSE; if (!_glfwChooseVisualEGL(wndconfig, ctxconfig, fbconfig, &visual, &depth)) return GLFW_FALSE; } else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API) { if (!_glfwInitOSMesa()) return GLFW_FALSE; } } if (!visual) { visual = DefaultVisual(_glfw.x11.display, _glfw.x11.screen); depth = DefaultDepth(_glfw.x11.display, _glfw.x11.screen); } if (!createNativeWindow(window, wndconfig, visual, depth)) return GLFW_FALSE; if (ctxconfig->client != GLFW_NO_API) { if (ctxconfig->source == GLFW_NATIVE_CONTEXT_API) { if (!_glfwCreateContextGLX(window, ctxconfig, fbconfig)) return GLFW_FALSE; } else if (ctxconfig->source == GLFW_EGL_CONTEXT_API) { if (!_glfwCreateContextEGL(window, ctxconfig, fbconfig)) return GLFW_FALSE; } else if (ctxconfig->source == GLFW_OSMESA_CONTEXT_API) { if (!_glfwCreateContextOSMesa(window, ctxconfig, fbconfig)) return GLFW_FALSE; } if (!_glfwRefreshContextAttribs(window, ctxconfig)) return GLFW_FALSE; } if (window->monitor) { _glfwPlatformShowWindow(window); updateWindowMode(window); acquireMonitor(window); if (wndconfig->centerCursor) _glfwCenterCursorInContentArea(window); } else { if (wndconfig->visible) { _glfwPlatformShowWindow(window); if (wndconfig->focused) _glfwPlatformFocusWindow(window); } } XFlush(_glfw.x11.display); return GLFW_TRUE; } void _glfwPlatformDestroyWindow(_GLFWwindow* window) { if (_glfw.x11.disabledCursorWindow == window) _glfw.x11.disabledCursorWindow = NULL; if (window->monitor) releaseMonitor(window); if (window->x11.ic) { XDestroyIC(window->x11.ic); window->x11.ic = NULL; } if (window->context.destroy) window->context.destroy(window); if (window->x11.handle) { XDeleteContext(_glfw.x11.display, window->x11.handle, _glfw.x11.context); XUnmapWindow(_glfw.x11.display, window->x11.handle); XDestroyWindow(_glfw.x11.display, window->x11.handle); window->x11.handle = (Window) 0; } if (window->x11.colormap) { XFreeColormap(_glfw.x11.display, window->x11.colormap); window->x11.colormap = (Colormap) 0; } XFlush(_glfw.x11.display); } void _glfwPlatformSetWindowTitle(_GLFWwindow* window, const char* title) { #if defined(X_HAVE_UTF8_STRING) Xutf8SetWMProperties(_glfw.x11.display, window->x11.handle, title, title, NULL, 0, NULL, NULL, NULL); #else // This may be a slightly better fallback than using XStoreName and // XSetIconName, which always store their arguments using STRING XmbSetWMProperties(_glfw.x11.display, window->x11.handle, title, title, NULL, 0, NULL, NULL, NULL); #endif XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_NAME, _glfw.x11.UTF8_STRING, 8, PropModeReplace, (unsigned char*) title, strlen(title)); XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_ICON_NAME, _glfw.x11.UTF8_STRING, 8, PropModeReplace, (unsigned char*) title, strlen(title)); XFlush(_glfw.x11.display); } void _glfwPlatformSetWindowIcon(_GLFWwindow* window, int count, const GLFWimage* images) { if (count) { int i, j, longCount = 0; for (i = 0; i < count; i++) longCount += 2 + images[i].width * images[i].height; unsigned long* icon = calloc(longCount, sizeof(unsigned long)); unsigned long* target = icon; for (i = 0; i < count; i++) { *target++ = images[i].width; *target++ = images[i].height; for (j = 0; j < images[i].width * images[i].height; j++) { *target++ = (((unsigned long) images[i].pixels[j * 4 + 0]) << 16) | (((unsigned long) images[i].pixels[j * 4 + 1]) << 8) | (((unsigned long) images[i].pixels[j * 4 + 2]) << 0) | (((unsigned long) images[i].pixels[j * 4 + 3]) << 24); } } // NOTE: XChangeProperty expects 32-bit values like the image data above to be // placed in the 32 least significant bits of individual longs. This is // true even if long is 64-bit and a WM protocol calls for "packed" data. // This is because of a historical mistake that then became part of the Xlib // ABI. Xlib will pack these values into a regular array of 32-bit values // before sending it over the wire. XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_ICON, XA_CARDINAL, 32, PropModeReplace, (unsigned char*) icon, longCount); free(icon); } else { XDeleteProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_ICON); } XFlush(_glfw.x11.display); } void _glfwPlatformGetWindowPos(_GLFWwindow* window, int* xpos, int* ypos) { Window dummy; int x, y; XTranslateCoordinates(_glfw.x11.display, window->x11.handle, _glfw.x11.root, 0, 0, &x, &y, &dummy); if (xpos) *xpos = x; if (ypos) *ypos = y; } void _glfwPlatformSetWindowPos(_GLFWwindow* window, int xpos, int ypos) { // HACK: Explicitly setting PPosition to any value causes some WMs, notably // Compiz and Metacity, to honor the position of unmapped windows if (!_glfwPlatformWindowVisible(window)) { long supplied; XSizeHints* hints = XAllocSizeHints(); if (XGetWMNormalHints(_glfw.x11.display, window->x11.handle, hints, &supplied)) { hints->flags |= PPosition; hints->x = hints->y = 0; XSetWMNormalHints(_glfw.x11.display, window->x11.handle, hints); } XFree(hints); } XMoveWindow(_glfw.x11.display, window->x11.handle, xpos, ypos); XFlush(_glfw.x11.display); } void _glfwPlatformGetWindowSize(_GLFWwindow* window, int* width, int* height) { XWindowAttributes attribs; XGetWindowAttributes(_glfw.x11.display, window->x11.handle, &attribs); if (width) *width = attribs.width; if (height) *height = attribs.height; } void _glfwPlatformSetWindowSize(_GLFWwindow* window, int width, int height) { if (window->monitor) { if (window->monitor->window == window) acquireMonitor(window); } else { if (!window->resizable) updateNormalHints(window, width, height); XResizeWindow(_glfw.x11.display, window->x11.handle, width, height); } XFlush(_glfw.x11.display); } void _glfwPlatformSetWindowSizeLimits(_GLFWwindow* window, int minwidth, int minheight, int maxwidth, int maxheight) { int width, height; _glfwPlatformGetWindowSize(window, &width, &height); updateNormalHints(window, width, height); XFlush(_glfw.x11.display); } void _glfwPlatformSetWindowAspectRatio(_GLFWwindow* window, int numer, int denom) { int width, height; _glfwPlatformGetWindowSize(window, &width, &height); updateNormalHints(window, width, height); XFlush(_glfw.x11.display); } void _glfwPlatformGetFramebufferSize(_GLFWwindow* window, int* width, int* height) { _glfwPlatformGetWindowSize(window, width, height); } void _glfwPlatformGetWindowFrameSize(_GLFWwindow* window, int* left, int* top, int* right, int* bottom) { long* extents = NULL; if (window->monitor || !window->decorated) return; if (_glfw.x11.NET_FRAME_EXTENTS == None) return; if (!_glfwPlatformWindowVisible(window) && _glfw.x11.NET_REQUEST_FRAME_EXTENTS) { XEvent event; double timeout = 0.5; // Ensure _NET_FRAME_EXTENTS is set, allowing glfwGetWindowFrameSize to // function before the window is mapped sendEventToWM(window, _glfw.x11.NET_REQUEST_FRAME_EXTENTS, 0, 0, 0, 0, 0); // HACK: Use a timeout because earlier versions of some window managers // (at least Unity, Fluxbox and Xfwm) failed to send the reply // They have been fixed but broken versions are still in the wild // If you are affected by this and your window manager is NOT // listed above, PLEASE report it to their and our issue trackers while (!XCheckIfEvent(_glfw.x11.display, &event, isFrameExtentsEvent, (XPointer) window)) { if (!waitForX11Event(&timeout)) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: The window manager has a broken _NET_REQUEST_FRAME_EXTENTS implementation; please report this issue"); return; } } } if (_glfwGetWindowPropertyX11(window->x11.handle, _glfw.x11.NET_FRAME_EXTENTS, XA_CARDINAL, (unsigned char**) &extents) == 4) { if (left) *left = extents[0]; if (top) *top = extents[2]; if (right) *right = extents[1]; if (bottom) *bottom = extents[3]; } if (extents) XFree(extents); } void _glfwPlatformGetWindowContentScale(_GLFWwindow* window, float* xscale, float* yscale) { if (xscale) *xscale = _glfw.x11.contentScaleX; if (yscale) *yscale = _glfw.x11.contentScaleY; } void _glfwPlatformIconifyWindow(_GLFWwindow* window) { if (window->x11.overrideRedirect) { // Override-redirect windows cannot be iconified or restored, as those // tasks are performed by the window manager _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Iconification of full screen windows requires a WM that supports EWMH full screen"); return; } XIconifyWindow(_glfw.x11.display, window->x11.handle, _glfw.x11.screen); XFlush(_glfw.x11.display); } void _glfwPlatformRestoreWindow(_GLFWwindow* window) { if (window->x11.overrideRedirect) { // Override-redirect windows cannot be iconified or restored, as those // tasks are performed by the window manager _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Iconification of full screen windows requires a WM that supports EWMH full screen"); return; } if (_glfwPlatformWindowIconified(window)) { XMapWindow(_glfw.x11.display, window->x11.handle); waitForVisibilityNotify(window); } else if (_glfwPlatformWindowVisible(window)) { if (_glfw.x11.NET_WM_STATE && _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT && _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ) { sendEventToWM(window, _glfw.x11.NET_WM_STATE, _NET_WM_STATE_REMOVE, _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT, _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ, 1, 0); } } XFlush(_glfw.x11.display); } void _glfwPlatformMaximizeWindow(_GLFWwindow* window) { if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT || !_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ) { return; } if (_glfwPlatformWindowVisible(window)) { sendEventToWM(window, _glfw.x11.NET_WM_STATE, _NET_WM_STATE_ADD, _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT, _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ, 1, 0); } else { Atom* states = NULL; unsigned long count = _glfwGetWindowPropertyX11(window->x11.handle, _glfw.x11.NET_WM_STATE, XA_ATOM, (unsigned char**) &states); // NOTE: We don't check for failure as this property may not exist yet // and that's fine (and we'll create it implicitly with append) Atom missing[2] = { _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT, _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ }; unsigned long missingCount = 2; for (unsigned long i = 0; i < count; i++) { for (unsigned long j = 0; j < missingCount; j++) { if (states[i] == missing[j]) { missing[j] = missing[missingCount - 1]; missingCount--; } } } if (states) XFree(states); if (!missingCount) return; XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_STATE, XA_ATOM, 32, PropModeAppend, (unsigned char*) missing, missingCount); } XFlush(_glfw.x11.display); } void _glfwPlatformShowWindow(_GLFWwindow* window) { if (_glfwPlatformWindowVisible(window)) return; XMapWindow(_glfw.x11.display, window->x11.handle); waitForVisibilityNotify(window); } void _glfwPlatformHideWindow(_GLFWwindow* window) { XUnmapWindow(_glfw.x11.display, window->x11.handle); XFlush(_glfw.x11.display); } void _glfwPlatformRequestWindowAttention(_GLFWwindow* window) { if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION) return; sendEventToWM(window, _glfw.x11.NET_WM_STATE, _NET_WM_STATE_ADD, _glfw.x11.NET_WM_STATE_DEMANDS_ATTENTION, 0, 1, 0); } void _glfwPlatformFocusWindow(_GLFWwindow* window) { if (_glfw.x11.NET_ACTIVE_WINDOW) sendEventToWM(window, _glfw.x11.NET_ACTIVE_WINDOW, 1, 0, 0, 0, 0); else if (_glfwPlatformWindowVisible(window)) { XRaiseWindow(_glfw.x11.display, window->x11.handle); XSetInputFocus(_glfw.x11.display, window->x11.handle, RevertToParent, CurrentTime); } XFlush(_glfw.x11.display); } void _glfwPlatformSetWindowMonitor(_GLFWwindow* window, _GLFWmonitor* monitor, int xpos, int ypos, int width, int height, int refreshRate) { if (window->monitor == monitor) { if (monitor) { if (monitor->window == window) acquireMonitor(window); } else { if (!window->resizable) updateNormalHints(window, width, height); XMoveResizeWindow(_glfw.x11.display, window->x11.handle, xpos, ypos, width, height); } XFlush(_glfw.x11.display); return; } if (window->monitor) { _glfwPlatformSetWindowDecorated(window, window->decorated); _glfwPlatformSetWindowFloating(window, window->floating); releaseMonitor(window); } _glfwInputWindowMonitor(window, monitor); updateNormalHints(window, width, height); if (window->monitor) { if (!_glfwPlatformWindowVisible(window)) { XMapRaised(_glfw.x11.display, window->x11.handle); waitForVisibilityNotify(window); } updateWindowMode(window); acquireMonitor(window); } else { updateWindowMode(window); XMoveResizeWindow(_glfw.x11.display, window->x11.handle, xpos, ypos, width, height); } XFlush(_glfw.x11.display); } int _glfwPlatformWindowFocused(_GLFWwindow* window) { Window focused; int state; XGetInputFocus(_glfw.x11.display, &focused, &state); return window->x11.handle == focused; } int _glfwPlatformWindowIconified(_GLFWwindow* window) { return getWindowState(window) == IconicState; } int _glfwPlatformWindowVisible(_GLFWwindow* window) { XWindowAttributes wa; XGetWindowAttributes(_glfw.x11.display, window->x11.handle, &wa); return wa.map_state == IsViewable; } int _glfwPlatformWindowMaximized(_GLFWwindow* window) { Atom* states; unsigned long i; GLFWbool maximized = GLFW_FALSE; if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_MAXIMIZED_VERT || !_glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ) { return maximized; } const unsigned long count = _glfwGetWindowPropertyX11(window->x11.handle, _glfw.x11.NET_WM_STATE, XA_ATOM, (unsigned char**) &states); for (i = 0; i < count; i++) { if (states[i] == _glfw.x11.NET_WM_STATE_MAXIMIZED_VERT || states[i] == _glfw.x11.NET_WM_STATE_MAXIMIZED_HORZ) { maximized = GLFW_TRUE; break; } } if (states) XFree(states); return maximized; } int _glfwPlatformWindowHovered(_GLFWwindow* window) { Window w = _glfw.x11.root; while (w) { Window root; int rootX, rootY, childX, childY; unsigned int mask; _glfwGrabErrorHandlerX11(); const Bool result = XQueryPointer(_glfw.x11.display, w, &root, &w, &rootX, &rootY, &childX, &childY, &mask); _glfwReleaseErrorHandlerX11(); if (_glfw.x11.errorCode == BadWindow) w = _glfw.x11.root; else if (!result) return GLFW_FALSE; else if (w == window->x11.handle) return GLFW_TRUE; } return GLFW_FALSE; } int _glfwPlatformFramebufferTransparent(_GLFWwindow* window) { if (!window->x11.transparent) return GLFW_FALSE; return XGetSelectionOwner(_glfw.x11.display, _glfw.x11.NET_WM_CM_Sx) != None; } void _glfwPlatformSetWindowResizable(_GLFWwindow* window, GLFWbool enabled) { int width, height; _glfwPlatformGetWindowSize(window, &width, &height); updateNormalHints(window, width, height); } void _glfwPlatformSetWindowDecorated(_GLFWwindow* window, GLFWbool enabled) { struct { unsigned long flags; unsigned long functions; unsigned long decorations; long input_mode; unsigned long status; } hints = {0}; hints.flags = MWM_HINTS_DECORATIONS; hints.decorations = enabled ? MWM_DECOR_ALL : 0; XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.MOTIF_WM_HINTS, _glfw.x11.MOTIF_WM_HINTS, 32, PropModeReplace, (unsigned char*) &hints, sizeof(hints) / sizeof(long)); } void _glfwPlatformSetWindowFloating(_GLFWwindow* window, GLFWbool enabled) { if (!_glfw.x11.NET_WM_STATE || !_glfw.x11.NET_WM_STATE_ABOVE) return; if (_glfwPlatformWindowVisible(window)) { const long action = enabled ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE; sendEventToWM(window, _glfw.x11.NET_WM_STATE, action, _glfw.x11.NET_WM_STATE_ABOVE, 0, 1, 0); } else { Atom* states = NULL; unsigned long i, count; count = _glfwGetWindowPropertyX11(window->x11.handle, _glfw.x11.NET_WM_STATE, XA_ATOM, (unsigned char**) &states); // NOTE: We don't check for failure as this property may not exist yet // and that's fine (and we'll create it implicitly with append) if (enabled) { for (i = 0; i < count; i++) { if (states[i] == _glfw.x11.NET_WM_STATE_ABOVE) break; } if (i == count) { XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_STATE, XA_ATOM, 32, PropModeAppend, (unsigned char*) &_glfw.x11.NET_WM_STATE_ABOVE, 1); } } else if (states) { for (i = 0; i < count; i++) { if (states[i] == _glfw.x11.NET_WM_STATE_ABOVE) break; } if (i < count) { states[i] = states[count - 1]; count--; XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_STATE, XA_ATOM, 32, PropModeReplace, (unsigned char*) states, count); } } if (states) XFree(states); } XFlush(_glfw.x11.display); } float _glfwPlatformGetWindowOpacity(_GLFWwindow* window) { float opacity = 1.f; if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.NET_WM_CM_Sx)) { CARD32* value = NULL; if (_glfwGetWindowPropertyX11(window->x11.handle, _glfw.x11.NET_WM_WINDOW_OPACITY, XA_CARDINAL, (unsigned char**) &value)) { opacity = (float) (*value / (double) 0xffffffffu); } if (value) XFree(value); } return opacity; } void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity) { const CARD32 value = (CARD32) (0xffffffffu * (double) opacity); XChangeProperty(_glfw.x11.display, window->x11.handle, _glfw.x11.NET_WM_WINDOW_OPACITY, XA_CARDINAL, 32, PropModeReplace, (unsigned char*) &value, 1); } void _glfwPlatformSetRawMouseMotion(_GLFWwindow *window, GLFWbool enabled) { if (!_glfw.x11.xi.available) return; if (_glfw.x11.disabledCursorWindow != window) return; if (enabled) enableRawMouseMotion(window); else disableRawMouseMotion(window); } GLFWbool _glfwPlatformRawMouseMotionSupported(void) { return _glfw.x11.xi.available; } void _glfwPlatformPollEvents(void) { drainEmptyEvents(); XPending(_glfw.x11.display); while (XQLength(_glfw.x11.display)) { XEvent event; XNextEvent(_glfw.x11.display, &event); processEvent(&event); } _GLFWwindow* window = _glfw.x11.disabledCursorWindow; if (window) { int width, height; _glfwPlatformGetWindowSize(window, &width, &height); // NOTE: Re-center the cursor only if it has moved since the last call, // to avoid breaking glfwWaitEvents with MotionNotify if (window->x11.lastCursorPosX != width / 2 || window->x11.lastCursorPosY != height / 2) { _glfwPlatformSetCursorPos(window, width / 2, height / 2); } } XFlush(_glfw.x11.display); } void _glfwPlatformWaitEvents(void) { waitForAnyEvent(NULL); _glfwPlatformPollEvents(); } void _glfwPlatformWaitEventsTimeout(double timeout) { waitForAnyEvent(&timeout); _glfwPlatformPollEvents(); } void _glfwPlatformPostEmptyEvent(void) { writeEmptyEvent(); } void _glfwPlatformGetCursorPos(_GLFWwindow* window, double* xpos, double* ypos) { Window root, child; int rootX, rootY, childX, childY; unsigned int mask; XQueryPointer(_glfw.x11.display, window->x11.handle, &root, &child, &rootX, &rootY, &childX, &childY, &mask); if (xpos) *xpos = childX; if (ypos) *ypos = childY; } void _glfwPlatformSetCursorPos(_GLFWwindow* window, double x, double y) { // Store the new position so it can be recognized later window->x11.warpCursorPosX = (int) x; window->x11.warpCursorPosY = (int) y; XWarpPointer(_glfw.x11.display, None, window->x11.handle, 0,0,0,0, (int) x, (int) y); XFlush(_glfw.x11.display); } void _glfwPlatformSetCursorMode(_GLFWwindow* window, int mode) { if (mode == GLFW_CURSOR_DISABLED) { if (_glfwPlatformWindowFocused(window)) disableCursor(window); } else if (_glfw.x11.disabledCursorWindow == window) enableCursor(window); else updateCursorImage(window); XFlush(_glfw.x11.display); } const char* _glfwPlatformGetScancodeName(int scancode) { if (!_glfw.x11.xkb.available) return NULL; if (scancode < 0 || scancode > 0xff || _glfw.x11.keycodes[scancode] == GLFW_KEY_UNKNOWN) { _glfwInputError(GLFW_INVALID_VALUE, "Invalid scancode %i", scancode); return NULL; } const int key = _glfw.x11.keycodes[scancode]; const KeySym keysym = XkbKeycodeToKeysym(_glfw.x11.display, scancode, _glfw.x11.xkb.group, 0); if (keysym == NoSymbol) return NULL; const uint32_t codepoint = _glfwKeySym2Unicode(keysym); if (codepoint == GLFW_INVALID_CODEPOINT) return NULL; const size_t count = _glfwEncodeUTF8(_glfw.x11.keynames[key], codepoint); if (count == 0) return NULL; _glfw.x11.keynames[key][count] = '\0'; return _glfw.x11.keynames[key]; } int _glfwPlatformGetKeyScancode(int key) { return _glfw.x11.scancodes[key]; } int _glfwPlatformCreateCursor(_GLFWcursor* cursor, const GLFWimage* image, int xhot, int yhot) { cursor->x11.handle = _glfwCreateCursorX11(image, xhot, yhot); if (!cursor->x11.handle) return GLFW_FALSE; return GLFW_TRUE; } int _glfwPlatformCreateStandardCursor(_GLFWcursor* cursor, int shape) { // See GLFW 3.4 implementation. if (_glfw.x11.xcursor.handle) { char* theme = XcursorGetTheme(_glfw.x11.display); if (theme) { const int size = XcursorGetDefaultSize(_glfw.x11.display); const char* name = NULL; switch (shape) { case GLFW_ARROW_CURSOR: name = "default"; break; case GLFW_IBEAM_CURSOR: name = "text"; break; case GLFW_CROSSHAIR_CURSOR: name = "crosshair"; break; case GLFW_HAND_CURSOR: name = "pointer"; break; case GLFW_HRESIZE_CURSOR: name = "ew-resize"; break; case GLFW_VRESIZE_CURSOR: name = "ns-resize"; break; case GLFW_RESIZE_NWSE_CURSOR: name = "nwse-resize"; break; case GLFW_RESIZE_NESW_CURSOR: name = "nesw-resize"; break; case GLFW_RESIZE_ALL_CURSOR: name = "all-scroll"; break; case GLFW_NOT_ALLOWED_CURSOR: name = "not-allowed"; break; } XcursorImage* image = XcursorLibraryLoadImage(name, theme, size); if (image) { cursor->x11.handle = XcursorImageLoadCursor(_glfw.x11.display, image); XcursorImageDestroy(image); } } } if (!cursor->x11.handle) { unsigned int native = 0; switch (shape) { case GLFW_ARROW_CURSOR: native = XC_left_ptr; break; case GLFW_IBEAM_CURSOR: native = XC_xterm; break; case GLFW_CROSSHAIR_CURSOR: native = XC_crosshair; break; case GLFW_HAND_CURSOR: native = XC_hand2; break; case GLFW_HRESIZE_CURSOR: native = XC_sb_h_double_arrow; break; case GLFW_VRESIZE_CURSOR: native = XC_sb_v_double_arrow; break; case GLFW_RESIZE_ALL_CURSOR: native = XC_fleur; break; default: //_glfwInputError(GLFW_CURSOR_UNAVAILABLE, // "X11: Standard cursor shape unavailable"); return GLFW_FALSE; } cursor->x11.handle = XCreateFontCursor(_glfw.x11.display, native); if (!cursor->x11.handle) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to create standard cursor"); return GLFW_FALSE; } } return GLFW_TRUE; } void _glfwPlatformDestroyCursor(_GLFWcursor* cursor) { if (cursor->x11.handle) XFreeCursor(_glfw.x11.display, cursor->x11.handle); } void _glfwPlatformSetCursor(_GLFWwindow* window, _GLFWcursor* cursor) { if (window->cursorMode == GLFW_CURSOR_NORMAL) { updateCursorImage(window); XFlush(_glfw.x11.display); } } void _glfwPlatformSetClipboardString(const char* string) { char* copy = _glfw_strdup(string); free(_glfw.x11.clipboardString); _glfw.x11.clipboardString = copy; XSetSelectionOwner(_glfw.x11.display, _glfw.x11.CLIPBOARD, _glfw.x11.helperWindowHandle, CurrentTime); if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.CLIPBOARD) != _glfw.x11.helperWindowHandle) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to become owner of clipboard selection"); } } const char* _glfwPlatformGetClipboardString(void) { return getSelectionString(_glfw.x11.CLIPBOARD); } ////////////////////////////////////////////////////////////////////////// ////// GLFW native API ////// ////////////////////////////////////////////////////////////////////////// GLFWAPI Display* glfwGetX11Display(void) { _GLFW_REQUIRE_INIT_OR_RETURN(NULL); return _glfw.x11.display; } GLFWAPI Window glfwGetX11Window(GLFWwindow* handle) { _GLFWwindow* window = (_GLFWwindow*) handle; _GLFW_REQUIRE_INIT_OR_RETURN(None); return window->x11.handle; } GLFWAPI void glfwSetX11SelectionString(const char* string) { _GLFW_REQUIRE_INIT(); free(_glfw.x11.primarySelectionString); _glfw.x11.primarySelectionString = _glfw_strdup(string); XSetSelectionOwner(_glfw.x11.display, _glfw.x11.PRIMARY, _glfw.x11.helperWindowHandle, CurrentTime); if (XGetSelectionOwner(_glfw.x11.display, _glfw.x11.PRIMARY) != _glfw.x11.helperWindowHandle) { _glfwInputError(GLFW_PLATFORM_ERROR, "X11: Failed to become owner of primary selection"); } } GLFWAPI const char* glfwGetX11SelectionString(void) { _GLFW_REQUIRE_INIT_OR_RETURN(NULL); return getSelectionString(_glfw.x11.PRIMARY); }