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      1 /*
      2 
      3 * Copyright 2016 Google Inc.
      4 *
      5 * Use of this source code is governed by a BSD-style license that can be
      6 * found in the LICENSE file.
      7 */
      8 
      9 #include "SkTypes.h"
     10 #include "SkTHash.h"
     11 #include "Timer.h"
     12 #include "Window_unix.h"
     13 #include "../Application.h"
     14 
     15 using sk_app::Application;
     16 
     17 void finishWindow(sk_app::Window_unix* win) {
     18     win->finishResize();
     19     win->finishPaint();
     20 }
     21 
     22 int main(int argc, char**argv) {
     23 
     24     Display* display = XOpenDisplay(nullptr);
     25 
     26     Application* app = Application::Create(argc, argv, (void*)display);
     27 
     28     // Get the file descriptor for the X display
     29     int x11_fd = ConnectionNumber(display);
     30     int count = x11_fd + 1;
     31 
     32     SkTHashSet<sk_app::Window_unix*> pendingWindows;
     33     bool done = false;
     34     while (!done) {
     35         // Create a file description set containing x11_fd
     36         fd_set in_fds;
     37         FD_ZERO(&in_fds);
     38         FD_SET(x11_fd, &in_fds);
     39 
     40         // Set a sleep timer
     41         struct timeval tv;
     42         tv.tv_usec = 100;
     43         tv.tv_sec = 0;
     44 
     45         while (!XPending(display)) {
     46             // Wait for an event on the file descriptor or for timer expiration
     47             (void) select(count, &in_fds, NULL, NULL, &tv);
     48         }
     49 
     50         // Handle XEvents (if any) and flush the input
     51         int count = XPending(display);
     52         while (count-- && !done) {
     53             XEvent event;
     54             XNextEvent(display, &event);
     55 
     56             sk_app::Window_unix* win = sk_app::Window_unix::gWindowMap.find(event.xany.window);
     57             if (!win) {
     58                 continue;
     59             }
     60 
     61             // paint and resize events get collapsed
     62             switch (event.type) {
     63             case Expose:
     64                 win->markPendingPaint();
     65                 pendingWindows.add(win);
     66                 break;
     67             case ConfigureNotify:
     68                 win->markPendingResize(event.xconfigurerequest.width,
     69                                        event.xconfigurerequest.height);
     70                 pendingWindows.add(win);
     71                 break;
     72             default:
     73                 if (win->handleEvent(event)) {
     74                     done = true;
     75                 }
     76                 break;
     77             }
     78         }
     79 
     80         pendingWindows.foreach(finishWindow);
     81         if (pendingWindows.count() > 0) {
     82             app->onIdle();
     83         }
     84         pendingWindows.reset();
     85 
     86         XFlush(display);
     87     }
     88 
     89     delete app;
     90 
     91     XCloseDisplay(display);
     92 
     93     return 0;
     94 }
     95