Refactored OpenGL embedder that works on Android, Mac or Linux.

runtime/embedders/openglui/common/dart_host.cc

+// Copyright (c) 2012, 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/common/dart_host.h"
+
+#include <math.h>
+#include <unistd.h>
+
+#include "embedders/openglui/common/log.h"
+
+DartHost::DartHost(Context *context)
+    : graphics_handler_(context->graphics_handler),
+      input_handler_(context->input_handler),
+      sound_handler_(context->sound_handler),
+      timer_(context->timer),
+      vm_glue_(context->vm_glue),
+      active_(false) {
+  LOGI("Creating DartHost");
+}
+
+DartHost::~DartHost() {
+  LOGI("Freeing DartHost");
+}
+
+int32_t DartHost::OnActivate() {
+  return Activate();
+}
+
+int32_t DartHost::Activate() {
+  if (!active_) {
+    LOGI("Activating DartHost");
+    if (graphics_handler_->Start() != 0) {
+      return -1;
+    }
+    if (sound_handler_->Start() != 0) {
+      return -1;
+    }
+    if (input_handler_->Start() != 0) {
+      return -1;
+    }
+    timer_->reset();
+    LOGI("Starting main isolate");
+    int result = vm_glue_->StartMainIsolate();
+    if (result != 0) {
+      LOGE("startMainIsolate returned %d", result);
+      return -1;
+    }
+    active_ = true;
+    vm_glue_->CallSetup();
+  }
+  return 0;
+}
+
+void DartHost::OnDeactivate() {
+  Deactivate();
+}
+
+void DartHost::Deactivate() {
+  if (active_) {
+    active_ = false;
+    vm_glue_->FinishMainIsolate();
+    LOGI("Deactivating DartHost");
+    input_handler_->Stop();
+    sound_handler_->Stop();
+    graphics_handler_->Stop();
+  }
+}
+
+int32_t DartHost::OnStep() {
+  timer_->update();
+  vm_glue_->CallUpdate();
+  if (graphics_handler_->Update() != 0) {
+    return -1;
+  }
+  return 0;
+}
+
+void DartHost::OnStart() {
+  LOGI("Starting DartHost");
+}
+
+void DartHost::OnResume() {
+  LOGI("Resuming DartHost");
+}
+
+void DartHost::OnPause() {
+  LOGI("Pausing DartHost");
+}
+
+void DartHost::OnStop() {
+  LOGI("Stopping DartHost");
+}
+
+void DartHost::OnDestroy() {
+  LOGI("Destroying DartHost");
+}
+
+void DartHost::OnSaveState(void** data, size_t* size) {
+  LOGI("Saving DartHost state");
+}
+
+void DartHost::OnConfigurationChanged() {
+  LOGI("DartHost config changed");
+}
+
+void DartHost::OnLowMemory() {
+  LOGI("DartHost low on memory");
+}
+
+void DartHost::OnCreateWindow() {
+  LOGI("DartHost creating window");
+}
+
+void DartHost::OnDestroyWindow() {
+  LOGI("DartHost destroying window");
+}
+
+void DartHost::OnGainedFocus() {
+  LOGI("DartHost gained focus");
+}
+
+void DartHost::OnLostFocus() {
+  LOGI("DartHost lost focus");
+}
+