Added a rudimentary DOM, to assist with event dispatch.

runtime/embedders/openglui/emulator/emulator_embedder.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "embedders/openglui/emulator/emulator_embedder.h"
 
 #include <string.h>
 #include <sys/time.h>
 #include "embedders/openglui/common/canvas_context.h"
 #include "embedders/openglui/common/context.h"
@@ skipping 35 matching lines @@
 void reshape(int width, int height) {
   glViewport(0, 0, width, height);
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
   glOrtho(0, width, 0, height, -1, 1);
   glMatrixMode(GL_MODELVIEW);
   glutPostRedisplay();
 }
 
 void keyboard(unsigned char key, int x, int y) {
-  input_handler_ptr->OnKeyEvent(kKeyDown, time(0), 0, key, 0, 0);
-  input_handler_ptr->OnKeyEvent(kKeyUp, time(0), 0, key, 0, 0);
+  input_handler_ptr->OnKeyEvent(kKeyDown, time(0), key, false, false, false, 0);
+  input_handler_ptr->OnKeyEvent(kKeyUp, time(0), key, false, false, false, 0);
   if (key == 27) {
     lifecycle_handler_ptr->Pause();
     lifecycle_handler_ptr->Deactivate();
     lifecycle_handler_ptr->FreeAllResources();
     exit(0);
   } else if (key == '0') {
     LOGI("Simulating suspend");
     lifecycle_handler_ptr->Pause();
     lifecycle_handler_ptr->Deactivate();
   } else if (key == '1') {
     LOGI("Simulating resume");
     lifecycle_handler_ptr->Activate();
     lifecycle_handler_ptr->Resume();
   } else if (key == '+') {
     LOGI("Simulating focus gain");
     lifecycle_handler_ptr->Resume();
   } else if (key == '-') {
     LOGI("Simulating focus loss");
     lifecycle_handler_ptr->Pause();
   }
 }
 
+void mouse(int button, int state, int x, int y) {
+  if (state == GLUT_UP) {
+    input_handler_ptr->OnMotionEvent(kMotionUp, time(0), x, y);
+  } else if (state == GLUT_DOWN) {
+    input_handler_ptr->OnMotionEvent(kMotionDown, time(0), x, y);
+  }
+}
+
+void motion(int x, int y) {
+  input_handler_ptr->OnMotionEvent(kMotionMove, time(0), x, y);
+}
+
 DART_EXPORT void emulator_main(int argc, char** argv, const char* script) {
   EmulatorGraphicsHandler graphics_handler(argc, argv);
   if (argc > 0) {
     int i = argc - 1;
     size_t len = strlen(argv[i]);
     if (len > 5 && strcmp(".dart", argv[i] + len - 5) == 0) {
       script = argv[i];
     }
   }
   VMGlue vm_glue(&graphics_handler, ".", "gl.dart", script);
   InputHandler input_handler(&vm_glue);
   input_handler_ptr = &input_handler;
   SoundHandler sound_handler;
   Timer timer;
   Context app_context;
   app_context.graphics_handler = &graphics_handler;
   app_context.input_handler = &input_handler;
   app_context.sound_handler = &sound_handler;
   app_context.timer = &timer;
   app_context.vm_glue = &vm_glue;
   DartHost host(&app_context);
   lifecycle_handler_ptr = &host;
   glutReshapeFunc(reshape);
   glutDisplayFunc(display);
   glutKeyboardFunc(keyboard);
+  glutMouseFunc(mouse);
+  glutMotionFunc(motion);
   lifecycle_handler_ptr->OnStart();
   lifecycle_handler_ptr->Activate();
   lifecycle_handler_ptr->Resume();
   gettimeofday(&tvStart, NULL);
   glutTimerFunc(1, tick, 0);
   glutMainLoop();
 }