Pileus Git - wmpus/blob - sys-win32.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <ctype.h>
   4 #include <search.h>
   5
   6 #define WIN32_LEAN_AND_MEAN
   7 #define _WIN32_WINNT 0x0500
   8 #include <windows.h>
   9 #include <winbase.h>
  10 #include <winuser.h>
  11
  12 #include "util.h"
  13 #include "sys.h"
  14 #include "wm.h"
  15
  16 /* Internal structures */
  17 struct win_sys {
  18         HWND hwnd;
  19 };
  20
  21 typedef struct {
  22         Key_t key;
  23         int   vk;
  24 } keymap_t;
  25
  26 /* Global data */
  27 static int   shellhookid;
  28 static void *win_cache;
  29
  30 /* Conversion functions */
  31 static keymap_t key2vk[] = {
  32         {key_mouse1  , VK_LBUTTON },
  33         {key_mouse2  , VK_MBUTTON },
  34         {key_mouse3  , VK_RBUTTON },
  35         {key_left    , VK_LEFT    },
  36         {key_right   , VK_RIGHT   },
  37         {key_up      , VK_UP      },
  38         {key_down    , VK_DOWN    },
  39         {key_home    , VK_HOME    },
  40         {key_end     , VK_END     },
  41         {key_pageup  , VK_PRIOR   },
  42         {key_pagedown, VK_NEXT    },
  43         {key_f1      , VK_F1      },
  44         {key_f2      , VK_F2      },
  45         {key_f3      , VK_F3      },
  46         {key_f4      , VK_F4      },
  47         {key_f5      , VK_F5      },
  48         {key_f6      , VK_F6      },
  49         {key_f7      , VK_F7      },
  50         {key_f8      , VK_F8      },
  51         {key_f9      , VK_F9      },
  52         {key_f10     , VK_F10     },
  53         {key_f11     , VK_F11     },
  54         {key_f12     , VK_F12     },
  55         {key_shift   , VK_SHIFT   },
  56         {key_shift   , VK_LSHIFT  },
  57         {key_shift   , VK_RSHIFT  },
  58         {key_ctrl    , VK_CONTROL },
  59         {key_ctrl    , VK_LCONTROL},
  60         {key_ctrl    , VK_RCONTROL},
  61         {key_alt     , VK_MENU    },
  62         {key_alt     , VK_LMENU   },
  63         {key_alt     , VK_RMENU   },
  64         {key_win     , VK_LWIN    },
  65         {key_win     , VK_RWIN    },
  66 };
  67
  68 /* - Keycodes */
  69 static Key_t w2key(UINT vk)
  70 {
  71         keymap_t *km = map_getr(key2vk,vk);
  72         return km ? km->key : tolower(vk);
  73 }
  74
  75 static UINT key2w(Key_t key)
  76 {
  77         keymap_t *km = map_get(key2vk,key);
  78         return km ? km->vk : toupper(key);
  79 }
  80
  81 static mod_t getmod(void)
  82 {
  83         return (mod_t){
  84                 .alt   = GetKeyState(VK_MENU)    < 0,
  85                 .ctrl  = GetKeyState(VK_CONTROL) < 0,
  86                 .shift = GetKeyState(VK_SHIFT)   < 0,
  87                 .win   = GetKeyState(VK_LWIN)    < 0 ||
  88                          GetKeyState(VK_RWIN)    < 0,
  89         };
  90 }
  91
  92 /* - Pointers */
  93 static ptr_t getptr(void)
  94 {
  95         POINT wptr;
  96         GetCursorPos(&wptr);
  97         return (ptr_t){-1, -1, wptr.x, wptr.y};
  98 }
  99
 100 /* Helpers */
 101 static win_t *win_new(HWND hwnd, int checkwin)
 102 {
 103         if (checkwin) {
 104                 char winclass[256];
 105                 int exstyle = GetWindowLong(hwnd, GWL_EXSTYLE);
 106                 GetClassName(hwnd, winclass, sizeof(winclass));
 107                 if (!IsWindowVisible(hwnd))      return NULL; // Invisible stuff..
 108                 if (!strcmp("#32770", winclass)) return NULL; // Message boxes
 109                 if (GetWindow(hwnd, GW_OWNER))   return NULL; // Dialog boxes, etc
 110                 if (exstyle & WS_EX_TOOLWINDOW)  return NULL; // Floating toolbars
 111         }
 112
 113         RECT rect = {};
 114         GetWindowRect(hwnd, &rect);
 115         win_t *win = new0(win_t);
 116         win->x         = rect.left;
 117         win->y         = rect.top;
 118         win->w         = rect.right  - rect.left;
 119         win->h         = rect.bottom - rect.top;
 120         win->sys       = new0(win_sys_t);
 121         win->sys->hwnd = hwnd;
 122         printf("win_new: %p = %p (%d,%d %dx%d)\n", win, hwnd,
 123                         win->x, win->y, win->w, win->h);
 124         return win;
 125 }
 126
 127 static int win_cmp(const void *_a, const void *_b)
 128 {
 129         const win_t *a = _a, *b = _b;
 130         if (a->sys->hwnd < b->sys->hwnd) return -1;
 131         if (a->sys->hwnd > b->sys->hwnd) return  1;
 132         return 0;
 133 }
 134
 135 static win_t *win_find(HWND hwnd, int create)
 136 {
 137         if (!hwnd)
 138                 return NULL;
 139         //printf("win_find: %p, %d\n", dpy, (int)xid);
 140         win_sys_t sys = {.hwnd=hwnd};
 141         win_t     tmp = {.sys=&sys};
 142         win_t **old = NULL, *new = NULL;
 143         if ((old = tfind(&tmp, &win_cache, win_cmp)))
 144                 return *old;
 145         if (create && (new = win_new(hwnd,1)))
 146                 tsearch(new, &win_cache, win_cmp);
 147         return new;
 148 }
 149
 150 static void win_remove(win_t *win)
 151 {
 152         tdelete(win, &win_cache, win_cmp);
 153         free(win->sys);
 154         free(win);
 155 }
 156
 157 static win_t *win_cursor(void)
 158 {
 159         POINT wptr;
 160         GetCursorPos(&wptr);
 161         return win_find(GetAncestor(WindowFromPoint(wptr),GA_ROOT),0);
 162 }
 163
 164 static win_t *win_focused(void)
 165 {
 166         return win_find(GetForegroundWindow(),0);
 167 }
 168
 169 /* Callbacks */
 170 LRESULT CALLBACK KbdProc(int msg, WPARAM wParam, LPARAM lParam)
 171 {
 172         KBDLLHOOKSTRUCT *st = (KBDLLHOOKSTRUCT *)lParam;
 173         Key_t key = w2key(st->vkCode);
 174         mod_t mod = getmod();
 175         mod.up = !!(st->flags & 0x80);
 176         printf("KbdProc: %d,%x,%lx - %lx,%lx,%lx - %x,%x\n",
 177                         msg, wParam, lParam,
 178                         st->vkCode, st->scanCode, st->flags,
 179                         key, mod2int(mod));
 180         return wm_handle_key(win_focused(), key, mod, getptr())
 181                 || CallNextHookEx(0, msg, wParam, lParam);
 182 }
 183
 184 LRESULT CALLBACK MllProc(int msg, WPARAM wParam, LPARAM lParam)
 185 {
 186         Key_t key = key_none;
 187         mod_t mod = getmod();
 188         switch (wParam) {
 189         case WM_LBUTTONDOWN: mod.up = 0; key = key_mouse1; break;
 190         case WM_LBUTTONUP:   mod.up = 1; key = key_mouse1; break;
 191         case WM_RBUTTONDOWN: mod.up = 0; key = key_mouse3; break;
 192         case WM_RBUTTONUP:   mod.up = 1; key = key_mouse3; break;
 193         }
 194         if (wParam == WM_MOUSEMOVE)
 195                 return wm_handle_ptr(win_cursor(), getptr());
 196         else if (key != key_none)
 197                 return wm_handle_key(win_cursor(), key, mod, getptr());
 198         else
 199                 return CallNextHookEx(0, msg, wParam, lParam);
 200 }
 201
 202 LRESULT CALLBACK ShlProc(int msg, WPARAM wParam, LPARAM lParam)
 203 {
 204         HWND hwnd = (HWND)wParam;
 205         win_t *win = NULL;
 206         switch (msg) {
 207         case HSHELL_WINDOWCREATED:
 208         case HSHELL_REDRAW:
 209                 printf("ShlProc: %p - %s\n", hwnd, msg == HSHELL_REDRAW ?
 210                                 "redraw" : "window created");
 211                 if (!(win = win_find(hwnd,0)))
 212                         if ((win = win_find(hwnd,1)))
 213                                 wm_insert(win);
 214                 return 1;
 215         case HSHELL_WINDOWDESTROYED:
 216                 printf("ShlProc: %p - window destroyed\n", hwnd);
 217                 if ((win = win_find(hwnd,0))) {
 218                         wm_remove(win);
 219                         win_remove(win);
 220                 }
 221                 return 1;
 222         case HSHELL_WINDOWACTIVATED:
 223                 printf("ShlProc: %p - window activated\n", hwnd);
 224                 return 1;
 225         default:
 226                 printf("ShlProc: %p - unknown msg, %d\n", hwnd, msg);
 227                 return 0;
 228         }
 229 }
 230
 231 LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 232 {
 233         //printf("WndProc: %d, %x, %lx\n", msg, wParam, lParam);
 234         switch (msg) {
 235         case WM_CREATE:  printf("WndProc: %p - create\n",  hwnd); return 0;
 236         case WM_CLOSE:   printf("WndProc: %p - close\n",   hwnd); return 0;
 237         case WM_DESTROY: printf("WndProc: %p - destroy\n", hwnd); return 0;
 238         case WM_HOTKEY:  printf("WndProc: %p - hotkey\n",  hwnd); return 0;
 239         }
 240         if (msg == shellhookid)
 241                 if (ShlProc(wParam, lParam, 0))
 242                         return 1;
 243         return DefWindowProc(hwnd, msg, wParam, lParam);
 244 }
 245
 246 /*****************
 247  * Sys functions *
 248  *****************/
 249 void sys_move(win_t *win, int x, int y, int w, int h)
 250 {
 251         printf("sys_move: %p - %d,%d  %dx%d\n", win, x, y, w, h);
 252         win->x = MAX(x,0); win->y = MAX(y,0);
 253         win->w = MAX(w,1); win->h = MAX(h,1);
 254         MoveWindow(win->sys->hwnd, win->x, win->y, win->w, win->h, TRUE);
 255 }
 256
 257 void sys_raise(win_t *win)
 258 {
 259         printf("sys_raise: %p\n", win);
 260         SetForegroundWindow(win->sys->hwnd);
 261
 262         //HWND hwnd = win->sys->hwnd;
 263         //HWND top  = GetAncestor(hwnd,GA_ROOT);
 264         //SetWindowPos(top, HWND_TOPMOST, 0, 0, 0, 0,
 265         //              SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE);
 266 }
 267
 268 void sys_focus(win_t *win)
 269 {
 270         printf("sys_focus: %p\n", win);
 271
 272         /* Windows prevents a thread from using SetForegroundInput under
 273          * certain circumstnaces and instead flashes the windows toolbar icon.
 274          * Attaching the htread input queues avoids this behavior */
 275         DWORD oldId = GetWindowThreadProcessId(GetForegroundWindow(), NULL);
 276         DWORD newId = GetWindowThreadProcessId(win->sys->hwnd,        NULL);
 277         AttachThreadInput(oldId, newId, TRUE);
 278         SetForegroundWindow(win->sys->hwnd);
 279         AttachThreadInput(oldId, newId, FALSE);
 280 }
 281
 282 void sys_watch(win_t *win, Key_t key, mod_t mod)
 283 {
 284         (void)key2w; // TODO
 285         printf("sys_watch: %p\n", win);
 286 }
 287
 288 void sys_unwatch(win_t *win, Key_t key, mod_t mod)
 289 {
 290         (void)key2w; // TODO
 291         printf("sys_unwatch: %p\n", win);
 292 }
 293
 294 win_t *sys_init(void)
 295 {
 296         HINSTANCE hInst = GetModuleHandle(NULL);
 297         HWND      hwnd  = NULL;
 298
 299         /* Setup AWM window class */
 300         WNDCLASSEX wc    = {
 301                 .cbSize        = sizeof(WNDCLASSEX),
 302                 .lpfnWndProc   = WndProc,
 303                 .hInstance     = hInst,
 304                 .lpszClassName = "awm_class",
 305         };
 306         if (!RegisterClassEx(&wc))
 307                 printf("sys_init: Error Registering Class - %lu\n", GetLastError());
 308
 309         /* Get work area */
 310         RECT rc;
 311         SystemParametersInfo(SPI_GETWORKAREA, 0, &rc, 0);
 312
 313         /* Create shell hook window */
 314         if (!(hwnd = CreateWindowEx(0, "awm_class", "awm", 0,
 315                         rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top,
 316                         HWND_MESSAGE, NULL, hInst, NULL)))
 317                 printf("sys_init: Error Creating Shell Hook Window - %lu\n", GetLastError());
 318
 319         /* Register shell hook */
 320         BOOL (*RegisterShellHookWindow)(HWND) = (void*)GetProcAddress(
 321                         GetModuleHandle("USER32.DLL"), "RegisterShellHookWindow");
 322         if (!RegisterShellHookWindow)
 323                 printf("sys_init: Error Finding RegisterShellHookWindow - %lu\n", GetLastError());
 324         if (!RegisterShellHookWindow(hwnd))
 325                 printf("sys_init: Error Registering ShellHook Window - %lu\n", GetLastError());
 326         shellhookid = RegisterWindowMessage("SHELLHOOK");
 327
 328         /* Input hooks */
 329         SetWindowsHookEx(WH_KEYBOARD_LL, KbdProc, hInst, 0);
 330         //SetWindowsHookEx(WH_MOUSE_LL,    MllProc, hInst, 0);
 331         //SetWindowsHookEx(WH_SHELL,       ShlProc, hInst, 0);
 332
 333         /* Alternate ways to get input */
 334         //if (!RegisterHotKey(hwnd, 123, MOD_CONTROL, VK_LBUTTON))
 335         //      printf("sys_init: Error Registering Hotkey - %lu\n", GetLastError());
 336         //if (!RegisterHotKey(NULL, 123, MOD_CONTROL, VK_LBUTTON))
 337         //      printf("sys_init: Error Registering Hotkey - %lu\n", GetLastError());
 338
 339         return win_new(hwnd,0);
 340 }
 341
 342 void sys_run(win_t *root)
 343 {
 344         MSG msg;
 345         while (GetMessage(&msg, NULL, 0, 0) > 0) {
 346                 TranslateMessage(&msg);
 347                 DispatchMessage(&msg);
 348         }
 349 }