Add mouse and keyboard input for X11

src/input/x11.c

@@ -0,0 +1,114 @@
+/*
+ * This file is part of Moonlight Embedded.
+ *
+ * Copyright (C) 2017 Iwan Timmer
+ *
+ * Moonlight is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Moonlight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Moonlight; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "x11.h"
+#include "keyboard.h"
+#include "../global.h"
+#include "../loop.h"
+
+#include <Limelight.h>
+
+#include <X11/Xatom.h>
+#include <X11/Xutil.h>
+
+#include <poll.h>
+
+static Display *display;
+
+static Atom wm_deletemessage;
+
+static int last_x = -1, last_y = -1;
+static int keyboard_modifiers;
+
+static int x11_handler(int fd) {
+  XEvent event;
+  int button = 0;
+
+  XNextEvent(display, &event);
+  switch (event.type) {
+  case KeyPress:
+  case KeyRelease:
+    if (event.xkey.keycode >= 8 && event.xkey.keycode < (sizeof(keyCodes)/sizeof(keyCodes[0]) + 8)) {
+      int modifier = 0;
+      switch (event.xkey.keycode) {
+      case XK_Shift_R:
+      case XK_Shift_L:
+        modifier = MODIFIER_SHIFT;
+        break;
+      case XK_Alt_R:
+      case XK_Alt_L:
+        modifier = MODIFIER_ALT;
+        break;
+      case XK_Control_R:
+      case XK_Control_L:
+        modifier = MODIFIER_CTRL;
+        break;
+      }
+
+      if (modifier != 0) {
+        if (event.type == KeyPress)
+          keyboard_modifiers |= modifier;
+        else
+          keyboard_modifiers &= ~modifier;
+      }
+
+      short code = 0x80 << 8 | keyCodes[event.xkey.keycode - 8];
+      LiSendKeyboardEvent(code, event.type == KeyPress ? KEY_ACTION_DOWN : KEY_ACTION_UP, keyboard_modifiers);
+    }
+    break;
+  case ButtonPress:
+  case ButtonRelease:
+    switch (event.xbutton.button) {
+    case Button1:
+      button = BUTTON_LEFT;
+      break;
+    case Button2:
+      button = BUTTON_MIDDLE;
+      break;
+    case Button3:
+      button = BUTTON_RIGHT;
+      break;
+    }
+
+    if (button != 0)
+      LiSendMouseButtonEvent(event.type==ButtonPress ? BUTTON_ACTION_PRESS : BUTTON_ACTION_RELEASE, button);
+    break;
+  case MotionNotify:
+    if (last_x >= 0 && last_y >= 0) {
+      LiSendMouseMoveEvent(event.xmotion.x - last_x, event.xmotion.y - last_y);
+    }
+    last_x = event.xmotion.x;
+    last_y = event.xmotion.y;
+    break;
+  case ClientMessage:
+    if (event.xclient.data.l[0] == wm_deletemessage)
+      quit();
+
+    break;
+  }
+}
+
+void x11_input_init(Display* x11_display, Window window) {
+  display = x11_display;
+
+  wm_deletemessage = XInternAtom(display, "WM_DELETE_WINDOW", False);
+  XSetWMProtocols(display, window, &wm_deletemessage, 1);
+
+  loop_add_fd(ConnectionNumber(display), x11_handler, POLLIN | POLLERR | POLLHUP);
+}

src/input/x11.h

@@ -0,0 +1,22 @@
+/*
+ * This file is part of Moonlight Embedded.
+ *
+ * Copyright (C) 2017 Iwan Timmer
+ *
+ * Moonlight is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Moonlight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Moonlight; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <X11/Xlib.h>
+
+void x11_input_init(Display* display, Window window);