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-rw-r--r--include/pugl/detail/x11.c1348
1 files changed, 0 insertions, 1348 deletions
diff --git a/include/pugl/detail/x11.c b/include/pugl/detail/x11.c
deleted file mode 100644
index fd76606..0000000
--- a/include/pugl/detail/x11.c
+++ /dev/null
@@ -1,1348 +0,0 @@
-/*
- Copyright 2012-2020 David Robillard <d@drobilla.net>
- Copyright 2013 Robin Gareus <robin@gareus.org>
- Copyright 2011-2012 Ben Loftis, Harrison Consoles
-
- Permission to use, copy, modify, and/or distribute this software for any
- purpose with or without fee is hereby granted, provided that the above
- copyright notice and this permission notice appear in all copies.
-
- THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-*/
-
-/**
- @file x11.c
- @brief X11 implementation.
-*/
-
-#define _POSIX_C_SOURCE 199309L
-
-#include "pugl/detail/x11.h"
-
-#include "pugl/detail/implementation.h"
-#include "pugl/detail/types.h"
-#include "pugl/pugl.h"
-
-#include <X11/X.h>
-#include <X11/Xatom.h>
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-
-#ifdef HAVE_XRANDR
-# include <X11/extensions/Xrandr.h>
-#endif
-
-#ifdef HAVE_XSYNC
-# include <X11/extensions/sync.h>
-# include <X11/extensions/syncconst.h>
-#endif
-
-#ifdef HAVE_XCURSOR
-# include <X11/Xcursor/Xcursor.h>
-# include <X11/cursorfont.h>
-#endif
-
-#include <sys/select.h>
-#include <sys/time.h>
-
-#include <math.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#ifndef MIN
-# define MIN(a, b) (((a) < (b)) ? (a) : (b))
-#endif
-
-#ifndef MAX
-# define MAX(a, b) (((a) > (b)) ? (a) : (b))
-#endif
-
-enum WmClientStateMessageAction {
- WM_STATE_REMOVE,
- WM_STATE_ADD,
- WM_STATE_TOGGLE
-};
-
-static const long eventMask =
- (ExposureMask | StructureNotifyMask |
- VisibilityChangeMask | FocusChangeMask |
- EnterWindowMask | LeaveWindowMask | PointerMotionMask |
- ButtonPressMask | ButtonReleaseMask | KeyPressMask | KeyReleaseMask);
-
-static bool
-puglInitXSync(PuglWorldInternals* impl)
-{
-#ifdef HAVE_XSYNC
- int syncMajor = 0;
- int syncMinor = 0;
- int errorBase = 0;
- XSyncSystemCounter* counters = NULL;
- int numCounters = 0;
-
- if (XSyncQueryExtension(impl->display, &impl->syncEventBase, &errorBase) &&
- XSyncInitialize(impl->display, &syncMajor, &syncMinor) &&
- (counters = XSyncListSystemCounters(impl->display, &numCounters))) {
-
- for (int n = 0; n < numCounters; ++n) {
- if (!strcmp(counters[n].name, "SERVERTIME")) {
- impl->serverTimeCounter = counters[n].counter;
- impl->syncSupported = true;
- break;
- }
- }
-
- XSyncFreeSystemCounterList(counters);
- }
-#else
- (void)impl;
-#endif
-
- return false;
-}
-
-PuglWorldInternals*
-puglInitWorldInternals(PuglWorldType type, PuglWorldFlags flags)
-{
- if (type == PUGL_PROGRAM && (flags & PUGL_WORLD_THREADS)) {
- XInitThreads();
- }
-
- Display* display = XOpenDisplay(NULL);
- if (!display) {
- return NULL;
- }
-
- PuglWorldInternals* impl = (PuglWorldInternals*)calloc(
- 1, sizeof(PuglWorldInternals));
-
- impl->display = display;
-
- // Intern the various atoms we will need
- impl->atoms.CLIPBOARD = XInternAtom(display, "CLIPBOARD", 0);
- impl->atoms.UTF8_STRING = XInternAtom(display, "UTF8_STRING", 0);
- impl->atoms.WM_PROTOCOLS = XInternAtom(display, "WM_PROTOCOLS", 0);
- impl->atoms.WM_DELETE_WINDOW = XInternAtom(display, "WM_DELETE_WINDOW", 0);
- impl->atoms.PUGL_CLIENT_MSG = XInternAtom(display, "_PUGL_CLIENT_MSG", 0);
- impl->atoms.NET_WM_NAME = XInternAtom(display, "_NET_WM_NAME", 0);
- impl->atoms.NET_WM_STATE = XInternAtom(display, "_NET_WM_STATE", 0);
- impl->atoms.NET_WM_STATE_DEMANDS_ATTENTION =
- XInternAtom(display, "_NET_WM_STATE_DEMANDS_ATTENTION", 0);
-
- // Open input method
- XSetLocaleModifiers("");
- if (!(impl->xim = XOpenIM(display, NULL, NULL, NULL))) {
- XSetLocaleModifiers("@im=");
- impl->xim = XOpenIM(display, NULL, NULL, NULL);
- }
-
- puglInitXSync(impl);
- XFlush(display);
-
- return impl;
-}
-
-void*
-puglGetNativeWorld(PuglWorld* world)
-{
- return world->impl->display;
-}
-
-PuglInternals*
-puglInitViewInternals(void)
-{
- PuglInternals* impl = (PuglInternals*)calloc(1, sizeof(PuglInternals));
-
-#ifdef HAVE_XCURSOR
- impl->cursorShape = XC_arrow;
-#endif
-
- return impl;
-}
-
-static PuglStatus
-puglPollX11Socket(PuglWorld* world, const double timeout)
-{
- if (XPending(world->impl->display) > 0) {
- return PUGL_SUCCESS;
- }
-
- const int fd = ConnectionNumber(world->impl->display);
- const int nfds = fd + 1;
- int ret = 0;
- fd_set fds;
- FD_ZERO(&fds); // NOLINT
- FD_SET(fd, &fds);
-
- if (timeout < 0.0) {
- ret = select(nfds, &fds, NULL, NULL, NULL);
- } else {
- const long sec = (long)timeout;
- const long usec = (long)((timeout - (double)sec) * 1e6);
- struct timeval tv = {sec, usec};
- ret = select(nfds, &fds, NULL, NULL, &tv);
- }
-
- return ret < 0 ? PUGL_UNKNOWN_ERROR : PUGL_SUCCESS;
-}
-
-static PuglView*
-puglFindView(PuglWorld* world, const Window window)
-{
- for (size_t i = 0; i < world->numViews; ++i) {
- if (world->views[i]->impl->win == window) {
- return world->views[i];
- }
- }
-
- return NULL;
-}
-
-static PuglStatus
-updateSizeHints(const PuglView* view)
-{
- if (!view->impl->win) {
- return PUGL_SUCCESS;
- }
-
- Display* display = view->world->impl->display;
- XSizeHints sizeHints = {0};
-
- if (!view->hints[PUGL_RESIZABLE]) {
- sizeHints.flags = PBaseSize | PMinSize | PMaxSize;
- sizeHints.base_width = (int)view->frame.width;
- sizeHints.base_height = (int)view->frame.height;
- sizeHints.min_width = (int)view->frame.width;
- sizeHints.min_height = (int)view->frame.height;
- sizeHints.max_width = (int)view->frame.width;
- sizeHints.max_height = (int)view->frame.height;
- } else {
- if (view->defaultWidth || view->defaultHeight) {
- sizeHints.flags = PBaseSize;
- sizeHints.base_width = view->defaultWidth;
- sizeHints.base_height = view->defaultHeight;
- }
- if (view->minWidth || view->minHeight) {
- sizeHints.flags = PMinSize;
- sizeHints.min_width = view->minWidth;
- sizeHints.min_height = view->minHeight;
- }
- if (view->maxWidth || view->maxHeight) {
- sizeHints.flags = PMaxSize;
- sizeHints.max_width = view->maxWidth;
- sizeHints.max_height = view->maxHeight;
- }
- if (view->minAspectX) {
- sizeHints.flags |= PAspect;
- sizeHints.min_aspect.x = view->minAspectX;
- sizeHints.min_aspect.y = view->minAspectY;
- sizeHints.max_aspect.x = view->maxAspectX;
- sizeHints.max_aspect.y = view->maxAspectY;
- }
- }
-
- XSetNormalHints(display, view->impl->win, &sizeHints);
- return PUGL_SUCCESS;
-}
-
-#ifdef HAVE_XCURSOR
-static PuglStatus
-puglDefineCursorShape(PuglView* view, unsigned shape)
-{
- PuglInternals* const impl = view->impl;
- PuglWorld* const world = view->world;
- Display* const display = world->impl->display;
- const Cursor cur = XcursorShapeLoadCursor(display, shape);
-
- if (cur) {
- XDefineCursor(display, impl->win, cur);
- XFreeCursor(display, cur);
- return PUGL_SUCCESS;
- }
-
- return PUGL_FAILURE;
-}
-#endif
-
-PuglStatus
-puglRealize(PuglView* view)
-{
- PuglInternals* const impl = view->impl;
- if (impl->win) {
- return PUGL_FAILURE;
- }
-
- PuglWorld* const world = view->world;
- PuglX11Atoms* const atoms = &view->world->impl->atoms;
- Display* const display = world->impl->display;
-
- impl->display = display;
- impl->screen = DefaultScreen(display);
-
- if (!view->backend || !view->backend->configure) {
- return PUGL_BAD_BACKEND;
- } else if (view->frame.width == 0.0 && view->frame.height == 0.0) {
- if (view->defaultWidth == 0.0 && view->defaultHeight == 0.0) {
- return PUGL_BAD_CONFIGURATION;
- }
-
- const int screenWidth = DisplayWidth(display, impl->screen);
- const int screenHeight = DisplayHeight(display, impl->screen);
-
- view->frame.width = view->defaultWidth;
- view->frame.height = view->defaultHeight;
- view->frame.x = screenWidth / 2.0 - view->frame.width / 2.0;
- view->frame.y = screenHeight / 2.0 - view->frame.height / 2.0;
- }
-
- PuglStatus st = view->backend->configure(view);
- if (st || !impl->vi) {
- view->backend->destroy(view);
- return st ? st : PUGL_BACKEND_FAILED;
- }
-
- Window xParent = view->parent ? (Window)view->parent
- : RootWindow(display, impl->screen);
-
- Colormap cmap = XCreateColormap(
- display, xParent, impl->vi->visual, AllocNone);
-
- XSetWindowAttributes attr = {0};
- attr.colormap = cmap;
- attr.event_mask = eventMask;
-
- const Window win = impl->win = XCreateWindow(
- display, xParent,
- (int)view->frame.x, (int)view->frame.y,
- (unsigned)view->frame.width, (unsigned)view->frame.height,
- 0, impl->vi->depth, InputOutput,
- impl->vi->visual, CWColormap | CWEventMask, &attr);
-
- if ((st = view->backend->create(view))) {
- return st;
- }
-
-#ifdef HAVE_XRANDR
- // Set refresh rate hint to the real refresh rate
- XRRScreenConfiguration* conf = XRRGetScreenInfo(display, xParent);
- short current_rate = XRRConfigCurrentRate(conf);
-
- view->hints[PUGL_REFRESH_RATE] = current_rate;
- XRRFreeScreenConfigInfo(conf);
-#endif
-
- updateSizeHints(view);
-
- XClassHint classHint = { world->className, world->className };
- XSetClassHint(display, win, &classHint);
-
- if (view->title) {
- puglSetWindowTitle(view, view->title);
- }
-
- if (!view->parent) {
- XSetWMProtocols(display, win, &atoms->WM_DELETE_WINDOW, 1);
- }
-
- if (view->transientParent) {
- XSetTransientForHint(display, win, (Window)(view->transientParent));
- }
-
- // Create input context
- const XIMStyle im_style = XIMPreeditNothing | XIMStatusNothing;
- if (!(impl->xic = XCreateIC(world->impl->xim,
- XNInputStyle, im_style,
- XNClientWindow, win,
- XNFocusWindow, win,
- NULL))) {
- view->world->logFunc(view->world,
- PUGL_LOG_LEVEL_WARNING,
- "XCreateID failed\n");
- }
-
-#ifdef HAVE_XCURSOR
- puglDefineCursorShape(view, impl->cursorShape);
-#endif
-
- puglDispatchSimpleEvent(view, PUGL_CREATE);
-
- return PUGL_SUCCESS;
-}
-
-PuglStatus
-puglShowWindow(PuglView* view)
-{
- PuglStatus st = PUGL_SUCCESS;
-
- if (!view->impl->win) {
- if ((st = puglRealize(view))) {
- return st;
- }
- }
-
- XMapRaised(view->impl->display, view->impl->win);
- puglPostRedisplay(view);
-
- return st;
-}
-
-PuglStatus
-puglHideWindow(PuglView* view)
-{
- XUnmapWindow(view->impl->display, view->impl->win);
- return PUGL_SUCCESS;
-}
-
-void
-puglFreeViewInternals(PuglView* view)
-{
- if (view && view->impl) {
- if (view->impl->xic) {
- XDestroyIC(view->impl->xic);
- }
- if (view->backend) {
- view->backend->destroy(view);
- }
- if (view->impl->display) {
- XDestroyWindow(view->impl->display, view->impl->win);
- }
- XFree(view->impl->vi);
- free(view->impl);
- }
-}
-
-void
-puglFreeWorldInternals(PuglWorld* world)
-{
- if (world->impl->xim) {
- XCloseIM(world->impl->xim);
- }
- XCloseDisplay(world->impl->display);
- free(world->impl->timers);
- free(world->impl);
-}
-
-static PuglKey
-keySymToSpecial(KeySym sym)
-{
- switch (sym) {
- case XK_F1: return PUGL_KEY_F1;
- case XK_F2: return PUGL_KEY_F2;
- case XK_F3: return PUGL_KEY_F3;
- case XK_F4: return PUGL_KEY_F4;
- case XK_F5: return PUGL_KEY_F5;
- case XK_F6: return PUGL_KEY_F6;
- case XK_F7: return PUGL_KEY_F7;
- case XK_F8: return PUGL_KEY_F8;
- case XK_F9: return PUGL_KEY_F9;
- case XK_F10: return PUGL_KEY_F10;
- case XK_F11: return PUGL_KEY_F11;
- case XK_F12: return PUGL_KEY_F12;
- case XK_Left: return PUGL_KEY_LEFT;
- case XK_Up: return PUGL_KEY_UP;
- case XK_Right: return PUGL_KEY_RIGHT;
- case XK_Down: return PUGL_KEY_DOWN;
- case XK_Page_Up: return PUGL_KEY_PAGE_UP;
- case XK_Page_Down: return PUGL_KEY_PAGE_DOWN;
- case XK_Home: return PUGL_KEY_HOME;
- case XK_End: return PUGL_KEY_END;
- case XK_Insert: return PUGL_KEY_INSERT;
- case XK_Shift_L: return PUGL_KEY_SHIFT_L;
- case XK_Shift_R: return PUGL_KEY_SHIFT_R;
- case XK_Control_L: return PUGL_KEY_CTRL_L;
- case XK_Control_R: return PUGL_KEY_CTRL_R;
- case XK_Alt_L: return PUGL_KEY_ALT_L;
- case XK_ISO_Level3_Shift:
- case XK_Alt_R: return PUGL_KEY_ALT_R;
- case XK_Super_L: return PUGL_KEY_SUPER_L;
- case XK_Super_R: return PUGL_KEY_SUPER_R;
- case XK_Menu: return PUGL_KEY_MENU;
- case XK_Caps_Lock: return PUGL_KEY_CAPS_LOCK;
- case XK_Scroll_Lock: return PUGL_KEY_SCROLL_LOCK;
- case XK_Num_Lock: return PUGL_KEY_NUM_LOCK;
- case XK_Print: return PUGL_KEY_PRINT_SCREEN;
- case XK_Pause: return PUGL_KEY_PAUSE;
- default: break;
- }
- return (PuglKey)0;
-}
-
-static int
-lookupString(XIC xic, XEvent* xevent, char* str, KeySym* sym)
-{
- Status status = 0;
-
-#ifdef X_HAVE_UTF8_STRING
- const int n = Xutf8LookupString(xic, &xevent->xkey, str, 7, sym, &status);
-#else
- const int n = XmbLookupString(xic, &xevent->xkey, str, 7, sym, &status);
-#endif
-
- return status == XBufferOverflow ? 0 : n;
-}
-
-static void
-translateKey(PuglView* view, XEvent* xevent, PuglEvent* event)
-{
- const unsigned state = xevent->xkey.state;
- const bool filter = XFilterEvent(xevent, None);
-
- event->key.keycode = xevent->xkey.keycode;
- xevent->xkey.state = 0;
-
- // Lookup unshifted key
- char ustr[8] = {0};
- KeySym sym = 0;
- const int ufound = XLookupString(&xevent->xkey, ustr, 8, &sym, NULL);
- const PuglKey special = keySymToSpecial(sym);
-
- event->key.key = ((special || ufound <= 0)
- ? special
- : puglDecodeUTF8((const uint8_t*)ustr));
-
- if (xevent->type == KeyPress && !filter && !special) {
- // Lookup shifted key for possible text event
- xevent->xkey.state = state;
-
- char sstr[8] = {0};
- const int sfound = lookupString(view->impl->xic, xevent, sstr, &sym);
- if (sfound > 0) {
- // Dispatch key event now
- puglDispatchEvent(view, event);
-
- // "Return" a text event in its place
- event->text.type = PUGL_TEXT;
- event->text.character = puglDecodeUTF8((const uint8_t*)sstr);
- memcpy(event->text.string, sstr, sizeof(sstr));
- }
- }
-}
-
-static uint32_t
-translateModifiers(const unsigned xstate)
-{
- return (((xstate & ShiftMask) ? PUGL_MOD_SHIFT : 0u) |
- ((xstate & ControlMask) ? PUGL_MOD_CTRL : 0u) |
- ((xstate & Mod1Mask) ? PUGL_MOD_ALT : 0u) |
- ((xstate & Mod4Mask) ? PUGL_MOD_SUPER : 0u));
-}
-
-static PuglEvent
-translateEvent(PuglView* view, XEvent xevent)
-{
- const PuglX11Atoms* atoms = &view->world->impl->atoms;
-
- PuglEvent event = {{PUGL_NOTHING, 0}};
- event.any.flags = xevent.xany.send_event ? PUGL_IS_SEND_EVENT : 0;
-
- switch (xevent.type) {
- case ClientMessage:
- if (xevent.xclient.message_type == atoms->WM_PROTOCOLS) {
- const Atom protocol = (Atom)xevent.xclient.data.l[0];
- if (protocol == atoms->WM_DELETE_WINDOW) {
- event.type = PUGL_CLOSE;
- }
- } else if (xevent.xclient.message_type == atoms->PUGL_CLIENT_MSG) {
- event.type = PUGL_CLIENT;
- event.client.data1 = (uintptr_t)xevent.xclient.data.l[0];
- event.client.data2 = (uintptr_t)xevent.xclient.data.l[1];
- }
- break;
- case VisibilityNotify:
- view->visible = xevent.xvisibility.state != VisibilityFullyObscured;
- break;
- case MapNotify:
- event.type = PUGL_MAP;
- break;
- case UnmapNotify:
- event.type = PUGL_UNMAP;
- view->visible = false;
- break;
- case ConfigureNotify:
- event.type = PUGL_CONFIGURE;
- event.configure.x = xevent.xconfigure.x;
- event.configure.y = xevent.xconfigure.y;
- event.configure.width = xevent.xconfigure.width;
- event.configure.height = xevent.xconfigure.height;
- break;
- case Expose:
- event.type = PUGL_EXPOSE;
- event.expose.x = xevent.xexpose.x;
- event.expose.y = xevent.xexpose.y;
- event.expose.width = xevent.xexpose.width;
- event.expose.height = xevent.xexpose.height;
- break;
- case MotionNotify:
- event.type = PUGL_MOTION;
- event.motion.time = (double)xevent.xmotion.time / 1e3;
- event.motion.x = xevent.xmotion.x;
- event.motion.y = xevent.xmotion.y;
- event.motion.xRoot = xevent.xmotion.x_root;
- event.motion.yRoot = xevent.xmotion.y_root;
- event.motion.state = translateModifiers(xevent.xmotion.state);
- if (xevent.xmotion.is_hint == NotifyHint) {
- event.motion.flags |= PUGL_IS_HINT;
- }
- break;
- case ButtonPress:
- if (xevent.xbutton.button >= 4 && xevent.xbutton.button <= 7) {
- event.type = PUGL_SCROLL;
- event.scroll.time = (double)xevent.xbutton.time / 1e3;
- event.scroll.x = xevent.xbutton.x;
- event.scroll.y = xevent.xbutton.y;
- event.scroll.xRoot = xevent.xbutton.x_root;
- event.scroll.yRoot = xevent.xbutton.y_root;
- event.scroll.state = translateModifiers(xevent.xbutton.state);
- event.scroll.dx = 0.0;
- event.scroll.dy = 0.0;
- switch (xevent.xbutton.button) {
- case 4:
- event.scroll.dy = 1.0;
- event.scroll.direction = PUGL_SCROLL_UP;
- break;
- case 5:
- event.scroll.dy = -1.0;
- event.scroll.direction = PUGL_SCROLL_DOWN;
- break;
- case 6:
- event.scroll.dx = -1.0;
- event.scroll.direction = PUGL_SCROLL_LEFT;
- break;
- case 7:
- event.scroll.dx = 1.0;
- event.scroll.direction = PUGL_SCROLL_RIGHT;
- break;
- }
- // fallthru
- }
- // fallthru
- case ButtonRelease:
- if (xevent.xbutton.button < 4 || xevent.xbutton.button > 7) {
- event.button.type = ((xevent.type == ButtonPress)
- ? PUGL_BUTTON_PRESS
- : PUGL_BUTTON_RELEASE);
- event.button.time = (double)xevent.xbutton.time / 1e3;
- event.button.x = xevent.xbutton.x;
- event.button.y = xevent.xbutton.y;
- event.button.xRoot = xevent.xbutton.x_root;
- event.button.yRoot = xevent.xbutton.y_root;
- event.button.state = translateModifiers(xevent.xbutton.state);
- event.button.button = xevent.xbutton.button;
- }
- break;
- case KeyPress:
- case KeyRelease:
- event.type = ((xevent.type == KeyPress)
- ? PUGL_KEY_PRESS
- : PUGL_KEY_RELEASE);
- event.key.time = (double)xevent.xkey.time / 1e3;
- event.key.x = xevent.xkey.x;
- event.key.y = xevent.xkey.y;
- event.key.xRoot = xevent.xkey.x_root;
- event.key.yRoot = xevent.xkey.y_root;
- event.key.state = translateModifiers(xevent.xkey.state);
- translateKey(view, &xevent, &event);
- break;
- case EnterNotify:
- case LeaveNotify:
- event.type = ((xevent.type == EnterNotify)
- ? PUGL_POINTER_IN
- : PUGL_POINTER_OUT);
- event.crossing.time = (double)xevent.xcrossing.time / 1e3;
- event.crossing.x = xevent.xcrossing.x;
- event.crossing.y = xevent.xcrossing.y;
- event.crossing.xRoot = xevent.xcrossing.x_root;
- event.crossing.yRoot = xevent.xcrossing.y_root;
- event.crossing.state = translateModifiers(xevent.xcrossing.state);
- event.crossing.mode = PUGL_CROSSING_NORMAL;
- if (xevent.xcrossing.mode == NotifyGrab) {
- event.crossing.mode = PUGL_CROSSING_GRAB;
- } else if (xevent.xcrossing.mode == NotifyUngrab) {
- event.crossing.mode = PUGL_CROSSING_UNGRAB;
- }
- break;
-
- case FocusIn:
- case FocusOut:
- event.type = (xevent.type == FocusIn) ? PUGL_FOCUS_IN : PUGL_FOCUS_OUT;
- event.focus.mode = PUGL_CROSSING_NORMAL;
- if (xevent.xfocus.mode == NotifyGrab) {
- event.focus.mode = PUGL_CROSSING_GRAB;
- } else if (xevent.xfocus.mode == NotifyUngrab) {
- event.focus.mode = PUGL_CROSSING_UNGRAB;
- }
- break;
-
- default:
- break;
- }
-
- return event;
-}
-
-PuglStatus
-puglGrabFocus(PuglView* view)
-{
- XSetInputFocus(
- view->impl->display, view->impl->win, RevertToNone, CurrentTime);
- return PUGL_SUCCESS;
-}
-
-bool
-puglHasFocus(const PuglView* view)
-{
- int revertTo = 0;
- Window focusedWindow = 0;
- XGetInputFocus(view->impl->display, &focusedWindow, &revertTo);
- return focusedWindow == view->impl->win;
-}
-
-PuglStatus
-puglRequestAttention(PuglView* view)
-{
- PuglInternals* const impl = view->impl;
- const PuglX11Atoms* const atoms = &view->world->impl->atoms;
- XEvent event = {0};
-
- event.type = ClientMessage;
- event.xclient.window = impl->win;
- event.xclient.format = 32;
- event.xclient.message_type = atoms->NET_WM_STATE;
- event.xclient.data.l[0] = WM_STATE_ADD;
- event.xclient.data.l[1] = (long)atoms->NET_WM_STATE_DEMANDS_ATTENTION;
- event.xclient.data.l[2] = 0;
- event.xclient.data.l[3] = 1;
- event.xclient.data.l[4] = 0;
-
- const Window root = RootWindow(impl->display, impl->screen);
- XSendEvent(impl->display,
- root,
- False,
- SubstructureNotifyMask | SubstructureRedirectMask,
- &event);
-
- return PUGL_SUCCESS;
-}
-
-PuglStatus
-puglStartTimer(PuglView* view, uintptr_t id, double timeout)
-{
-#ifdef HAVE_XSYNC
- if (view->world->impl->syncSupported) {
- XSyncValue value;
- XSyncIntToValue(&value, (int)floor(timeout * 1000.0));
-
- PuglWorldInternals* w = view->world->impl;
- Display* const display = w->display;
- const XSyncCounter counter = w->serverTimeCounter;
- const XSyncTestType type = XSyncPositiveTransition;
- const XSyncTrigger trigger = {counter, XSyncRelative, value, type};
- XSyncAlarmAttributes attr = {trigger, value, True, XSyncAlarmActive};
- const XSyncAlarm alarm = XSyncCreateAlarm(display, 0x17, &attr);
- const PuglTimer timer = {alarm, view, id};
-
- if (alarm != None) {
- for (size_t i = 0; i < w->numTimers; ++i) {
- if (w->timers[i].view == view && w->timers[i].id == id) {
- // Replace existing timer
- XSyncDestroyAlarm(w->display, w->timers[i].alarm);
- w->timers[i] = timer;
- return PUGL_SUCCESS;
- }
- }
-
- // Add new timer
- const size_t size = ++w->numTimers * sizeof(timer);
- w->timers = (PuglTimer*)realloc(w->timers, size);
- w->timers[w->numTimers - 1] = timer;
- return PUGL_SUCCESS;
- }
- }
-#else
- (void)view;
- (void)id;
- (void)timeout;
-#endif
-
- return PUGL_FAILURE;
-}
-
-PuglStatus
-puglStopTimer(PuglView* view, uintptr_t id)
-{
-#ifdef HAVE_XSYNC
- PuglWorldInternals* w = view->world->impl;
-
- for (size_t i = 0; i < w->numTimers; ++i) {
- if (w->timers[i].view == view && w->timers[i].id == id) {
- XSyncDestroyAlarm(w->display, w->timers[i].alarm);
-
- if (i == w->numTimers - 1) {
- memset(&w->timers[i], 0, sizeof(PuglTimer));
- } else {
- memmove(w->timers + i,
- w->timers + i + 1,
- sizeof(PuglTimer) * (w->numTimers - i - 1));
-
- memset(&w->timers[i], 0, sizeof(PuglTimer));
- }
-
- --w->numTimers;
- return PUGL_SUCCESS;
- }
- }
-#else
- (void)view;
- (void)id;
-#endif
-
- return PUGL_FAILURE;
-}
-
-static XEvent
-puglEventToX(PuglView* view, const PuglEvent* event)
-{
- XEvent xev = {0};
- xev.xany.send_event = True;
-
- switch (event->type) {
- case PUGL_EXPOSE: {
- const double x = floor(event->expose.x);
- const double y = floor(event->expose.y);
- const double w = ceil(event->expose.x + event->expose.width) - x;
- const double h = ceil(event->expose.y + event->expose.height) - y;
-
- xev.xexpose.type = Expose;
- xev.xexpose.serial = 0;
- xev.xexpose.display = view->impl->display;
- xev.xexpose.window = view->impl->win;
- xev.xexpose.x = (int)x;
- xev.xexpose.y = (int)y;
- xev.xexpose.width = (int)w;
- xev.xexpose.height = (int)h;
- break;
- }
-
- case PUGL_CLIENT:
- xev.xclient.type = ClientMessage;
- xev.xclient.serial = 0;
- xev.xclient.send_event = True;
- xev.xclient.display = view->impl->display;
- xev.xclient.window = view->impl->win;
- xev.xclient.message_type = view->world->impl->atoms.PUGL_CLIENT_MSG;
- xev.xclient.format = 32;
- xev.xclient.data.l[0] = (long)event->client.data1;
- xev.xclient.data.l[1] = (long)event->client.data2;
- break;
-
- default:
- break;
- }
-
- return xev;
-}
-
-PuglStatus
-puglSendEvent(PuglView* view, const PuglEvent* event)
-{
- XEvent xev = puglEventToX(view, event);
-
- if (xev.type) {
- if (XSendEvent(view->impl->display, view->impl->win, False, 0, &xev)) {
- return PUGL_SUCCESS;
- } else {
- return PUGL_UNKNOWN_ERROR;
- }
- }
-
- return PUGL_UNSUPPORTED_TYPE;
-}
-
-#ifndef PUGL_DISABLE_DEPRECATED
-PuglStatus
-puglWaitForEvent(PuglView* view)
-{
- XEvent xevent;
- XPeekEvent(view->impl->display, &xevent);
- return PUGL_SUCCESS;
-}
-#endif
-
-static void
-mergeExposeEvents(PuglEvent* dst, const PuglEvent* src)
-{
- if (!dst->type) {
- *dst = *src;
- } else {
- const double max_x = MAX(dst->expose.x + dst->expose.width,
- src->expose.x + src->expose.width);
- const double max_y = MAX(dst->expose.y + dst->expose.height,
- src->expose.y + src->expose.height);
-
- dst->expose.x = MIN(dst->expose.x, src->expose.x);
- dst->expose.y = MIN(dst->expose.y, src->expose.y);
- dst->expose.width = max_x - dst->expose.x;
- dst->expose.height = max_y - dst->expose.y;
- }
-}
-
-static void
-handleSelectionNotify(const PuglWorld* world, PuglView* view)
-{
- uint8_t* str = NULL;
- Atom type = 0;
- int fmt = 0;
- unsigned long len = 0;
- unsigned long left = 0;
-
- XGetWindowProperty(world->impl->display,
- view->impl->win,
- XA_PRIMARY,
- 0,
- 0x1FFFFFFF,
- False,
- AnyPropertyType,
- &type,
- &fmt,
- &len,
- &left,
- &str);
-
- if (str && fmt == 8 && type == world->impl->atoms.UTF8_STRING &&
- left == 0) {
- puglSetBlob(&view->clipboard, str, len);
- }
-
- XFree(str);
-}
-
-static void
-handleSelectionRequest(const PuglWorld* world,
- PuglView* view,
- const XSelectionRequestEvent* request)
-{
- XSelectionEvent note = {SelectionNotify,
- request->serial,
- False,
- world->impl->display,
- request->requestor,
- request->selection,
- request->target,
- None,
- request->time};
-
- const char* type = NULL;
- size_t len = 0;
- const void* data = puglGetInternalClipboard(view, &type, &len);
- if (data && request->selection == world->impl->atoms.CLIPBOARD &&
- request->target == world->impl->atoms.UTF8_STRING) {
- note.property = request->property;
- XChangeProperty(world->impl->display,
- note.requestor,
- note.property,
- note.target,
- 8,
- PropModeReplace,
- (const uint8_t*)data,
- (int)len);
- } else {
- note.property = None;
- }
-
- XSendEvent(world->impl->display, note.requestor, True, 0, (XEvent*)&note);
-}
-
-/// Flush pending configure and expose events for all views
-static void
-flushExposures(PuglWorld* world)
-{
- for (size_t i = 0; i < world->numViews; ++i) {
- PuglView* const view = world->views[i];
-
- if (view->visible) {
- puglDispatchSimpleEvent(view, PUGL_UPDATE);
- }
-
- const PuglEvent configure = view->impl->pendingConfigure;
- const PuglEvent expose = view->impl->pendingExpose;
-
- view->impl->pendingConfigure.type = PUGL_NOTHING;
- view->impl->pendingExpose.type = PUGL_NOTHING;
-
- if (configure.type || expose.type) {
- view->backend->enter(view, expose.type ? &expose.expose : NULL);
- puglDispatchEventInContext(view, &configure);
- puglDispatchEventInContext(view, &expose);
- view->backend->leave(view, expose.type ? &expose.expose : NULL);
- }
- }
-}
-
-static bool
-handleTimerEvent(PuglWorld* world, XEvent xevent)
-{
-#ifdef HAVE_XSYNC
- if (xevent.type == world->impl->syncEventBase + XSyncAlarmNotify) {
- XSyncAlarmNotifyEvent* notify = ((XSyncAlarmNotifyEvent*)&xevent);
-
- for (size_t i = 0; i < world->impl->numTimers; ++i) {
- if (world->impl->timers[i].alarm == notify->alarm) {
- PuglEvent event = {{PUGL_TIMER, 0}};
- event.timer.id = world->impl->timers[i].id;
- puglDispatchEvent(world->impl->timers[i].view,
- (const PuglEvent*)&event);
- }
- }
-
- return true;
- }
-#else
- (void)world;
- (void)xevent;
-#endif
-
- return false;
-}
-
-static PuglStatus
-puglDispatchX11Events(PuglWorld* world)
-{
- const PuglX11Atoms* const atoms = &world->impl->atoms;
-
- // Flush output to the server once at the start
- Display* display = world->impl->display;
- XFlush(display);
-
- // Process all queued events (without further flushing)
- while (XEventsQueued(display, QueuedAfterReading) > 0) {
- XEvent xevent;
- XNextEvent(display, &xevent);
-
- if (handleTimerEvent(world, xevent)) {
- continue;
- }
-
- PuglView* view = puglFindView(world, xevent.xany.window);
- if (!view) {
- continue;
- }
-
- // Handle special events
- PuglInternals* const impl = view->impl;
- if (xevent.type == KeyRelease && view->hints[PUGL_IGNORE_KEY_REPEAT]) {
- XEvent next;
- if (XCheckTypedWindowEvent(display, impl->win, KeyPress, &next) &&
- next.type == KeyPress &&
- next.xkey.time == xevent.xkey.time &&
- next.xkey.keycode == xevent.xkey.keycode) {
- continue;
- }
- } else if (xevent.type == FocusIn) {
- XSetICFocus(impl->xic);
- } else if (xevent.type == FocusOut) {
- XUnsetICFocus(impl->xic);
- } else if (xevent.type == SelectionClear) {
- puglSetBlob(&view->clipboard, NULL, 0);
- } else if (xevent.type == SelectionNotify &&
- xevent.xselection.selection == atoms->CLIPBOARD &&
- xevent.xselection.target == atoms->UTF8_STRING &&
- xevent.xselection.property == XA_PRIMARY) {
- handleSelectionNotify(world, view);
- } else if (xevent.type == SelectionRequest) {
- handleSelectionRequest(world, view, &xevent.xselectionrequest);
- }
-
- // Translate X11 event to Pugl event
- const PuglEvent event = translateEvent(view, xevent);
-
- if (event.type == PUGL_EXPOSE) {
- // Expand expose event to be dispatched after loop
- mergeExposeEvents(&view->impl->pendingExpose, &event);
- } else if (event.type == PUGL_CONFIGURE) {
- // Expand configure event to be dispatched after loop
- view->impl->pendingConfigure = event;
- view->frame.x = event.configure.x;
- view->frame.y = event.configure.y;
- view->frame.width = event.configure.width;
- view->frame.height = event.configure.height;
- } else if (event.type == PUGL_MAP && view->parent) {
- XWindowAttributes attrs;
- XGetWindowAttributes(view->impl->display, view->impl->win, &attrs);
-
- const PuglEventConfigure configure = {
- PUGL_CONFIGURE, 0, attrs.x, attrs.y, attrs.width, attrs.height};
-
- puglDispatchEvent(view, (const PuglEvent*)&configure);
- puglDispatchEvent(view, &event);
- } else {
- // Dispatch event to application immediately
- puglDispatchEvent(view, &event);
- }
- }
-
- return PUGL_SUCCESS;
-}
-
-#ifndef PUGL_DISABLE_DEPRECATED
-PuglStatus
-puglProcessEvents(PuglView* view)
-{
- return puglUpdate(view->world, 0.0);
-}
-#endif
-
-PuglStatus
-puglUpdate(PuglWorld* world, double timeout)
-{
- const double startTime = puglGetTime(world);
- PuglStatus st = PUGL_SUCCESS;
-
- world->impl->dispatchingEvents = true;
-
- if (timeout < 0.0) {
- st = puglPollX11Socket(world, timeout);
- st = st ? st : puglDispatchX11Events(world);
- } else if (timeout <= 0.001) {
- st = puglDispatchX11Events(world);
- } else {
- const double endTime = startTime + timeout - 0.001;
- for (double t = startTime; t < endTime; t = puglGetTime(world)) {
- if ((st = puglPollX11Socket(world, endTime - t)) ||
- (st = puglDispatchX11Events(world))) {
- break;
- }
- }
- }
-
- flushExposures(world);
-
- world->impl->dispatchingEvents = false;
-
- return st;
-}
-
-double
-puglGetTime(const PuglWorld* world)
-{
- struct timespec ts;
- clock_gettime(CLOCK_MONOTONIC, &ts);
- return ((double)ts.tv_sec + (double)ts.tv_nsec / 1000000000.0) -
- world->startTime;
-}
-
-PuglStatus
-puglPostRedisplay(PuglView* view)
-{
- const PuglRect rect = { 0, 0, view->frame.width, view->frame.height };
-
- return puglPostRedisplayRect(view, rect);
-}
-
-PuglStatus
-puglPostRedisplayRect(PuglView* view, PuglRect rect)
-{
- const PuglEventExpose event = {
- PUGL_EXPOSE, 0, rect.x, rect.y, rect.width, rect.height
- };
-
- if (view->world->impl->dispatchingEvents) {
- // Currently dispatching events, add/expand expose for the loop end
- mergeExposeEvents(&view->impl->pendingExpose, (const PuglEvent*)&event);
- } else if (view->visible) {
- // Not dispatching events, send an X expose so we wake up next time
- return puglSendEvent(view, (const PuglEvent*)&event);
- }
-
- return PUGL_SUCCESS;
-}
-
-PuglNativeView
-puglGetNativeWindow(PuglView* view)
-{
- return (PuglNativeView)view->impl->win;
-}
-
-PuglStatus
-puglSetWindowTitle(PuglView* view, const char* title)
-{
- Display* display = view->world->impl->display;
- const PuglX11Atoms* const atoms = &view->world->impl->atoms;
-
- puglSetString(&view->title, title);
-
- if (view->impl->win) {
- XStoreName(display, view->impl->win, title);
- XChangeProperty(display, view->impl->win, atoms->NET_WM_NAME,
- atoms->UTF8_STRING, 8, PropModeReplace,
- (const uint8_t*)title, (int)strlen(title));
- }
-
- return PUGL_SUCCESS;
-}
-
-PuglStatus
-puglSetFrame(PuglView* view, const PuglRect frame)
-{
- if (view->impl->win) {
- if (!XMoveResizeWindow(view->world->impl->display,
- view->impl->win,
- (int)frame.x,
- (int)frame.y,
- (unsigned)frame.width,
- (unsigned)frame.height)) {
- return PUGL_UNKNOWN_ERROR;
- }
- }
-
- view->frame = frame;
- return PUGL_SUCCESS;
-}
-
-PuglStatus
-puglSetDefaultSize(PuglView* const view, const int width, const int height)
-{
- view->defaultWidth = width;
- view->defaultHeight = height;
- return updateSizeHints(view);
-}
-
-PuglStatus
-puglSetMinSize(PuglView* const view, const int width, const int height)
-{
- view->minWidth = width;
- view->minHeight = height;
- return updateSizeHints(view);
-}
-
-PuglStatus
-puglSetMaxSize(PuglView* const view, const int width, const int height)
-{
- view->minWidth = width;
- view->minHeight = height;
- return updateSizeHints(view);
-}
-
-PuglStatus
-puglSetAspectRatio(PuglView* const view,
- const int minX,
- const int minY,
- const int maxX,
- const int maxY)
-{
- view->minAspectX = minX;
- view->minAspectY = minY;
- view->maxAspectX = maxX;
- view->maxAspectY = maxY;
-
- return updateSizeHints(view);
-}
-
-PuglStatus
-puglSetTransientFor(PuglView* view, PuglNativeView parent)
-{
- Display* display = view->world->impl->display;
-
- view->transientParent = parent;
-
- if (view->impl->win) {
- XSetTransientForHint(display, view->impl->win,
- (Window)view->transientParent);
- }
-
- return PUGL_SUCCESS;
-}
-
-const void*
-puglGetClipboard(PuglView* const view,
- const char** const type,
- size_t* const len)
-{
- PuglInternals* const impl = view->impl;
- const PuglX11Atoms* const atoms = &view->world->impl->atoms;
-
- const Window owner = XGetSelectionOwner(impl->display, atoms->CLIPBOARD);
- if (owner != None && owner != impl->win) {
- // Clear internal selection
- puglSetBlob(&view->clipboard, NULL, 0);
-
- // Request selection from the owner
- XConvertSelection(impl->display,
- atoms->CLIPBOARD,
- atoms->UTF8_STRING,
- XA_PRIMARY,
- impl->win,
- CurrentTime);
-
- // Run event loop until data is received
- while (!view->clipboard.data) {
- puglUpdate(view->world, -1.0);
- }
- }
-
- return puglGetInternalClipboard(view, type, len);
-}
-
-PuglStatus
-puglSetClipboard(PuglView* const view,
- const char* const type,
- const void* const data,
- const size_t len)
-{
- PuglInternals* const impl = view->impl;
- const PuglX11Atoms* const atoms = &view->world->impl->atoms;
-
- PuglStatus st = puglSetInternalClipboard(view, type, data, len);
- if (st) {
- return st;
- }
-
- XSetSelectionOwner(impl->display, atoms->CLIPBOARD, impl->win, CurrentTime);
- return PUGL_SUCCESS;
-}
-
-#ifdef HAVE_XCURSOR
-static const unsigned cursor_nums[] = {
- XC_arrow, // ARROW
- XC_xterm, // CARET
- XC_crosshair, // CROSSHAIR
- XC_hand2, // HAND
- XC_pirate, // NO
- XC_sb_h_double_arrow, // LEFT_RIGHT
- XC_sb_v_double_arrow, // UP_DOWN
-};
-#endif
-
-PuglStatus
-puglSetCursor(PuglView* view, PuglCursor cursor)
-{
-#ifdef HAVE_XCURSOR
- PuglInternals* const impl = view->impl;
- const unsigned index = (unsigned)cursor;
- const unsigned count = sizeof(cursor_nums) / sizeof(cursor_nums[0]);
- if (index >= count) {
- return PUGL_BAD_PARAMETER;
- }
-
- const unsigned shape = cursor_nums[index];
- if (!impl->win || impl->cursorShape == shape) {
- return PUGL_SUCCESS;
- }
-
- impl->cursorShape = cursor_nums[index];
-
- return puglDefineCursorShape(view, impl->cursorShape);
-#else
- (void)view;
- (void)cursor;
- return PUGL_FAILURE;
-#endif
-}