Add a basic UI to the Android Blimp client.

blimp/client/android/toolbar.cc

Index: blimp/client/android/toolbar.cc
diff --git a/blimp/client/android/toolbar.cc b/blimp/client/android/toolbar.cc
new file mode 100644
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+++ b/blimp/client/android/toolbar.cc
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+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "blimp/client/android/toolbar.h"
+
+#include "base/android/jni_string.h"
+#include "jni/Toolbar_jni.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/gfx/android/java_bitmap.h"
+#include "url/gurl.h"
+
+namespace blimp {
+
+// static
+static jlong Init(JNIEnv* env, const JavaParamRef<jobject>& jobj) {
+  return reinterpret_cast<intptr_t>(new Toolbar(env, jobj));
+}
+
+// static
+bool Toolbar::RegisterJni(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+Toolbar::Toolbar(JNIEnv* env,
+                 const base::android::JavaParamRef<jobject>& jobj) {
+  java_obj_.Reset(env, jobj);
+}
+
+Toolbar::~Toolbar() {}
+
+void Toolbar::Destroy(JNIEnv* env, jobject jobj) {
+  delete this;
+}
+
+void Toolbar::OnUrlTextEntered(JNIEnv* env, jobject jobj, jstring text) {
+  // TODO(dtrainor): Notify the content lite NavigationController.
+}
+
+void Toolbar::OnReloadPressed(JNIEnv* env, jobject jobj) {
+  // TODO(dtrainor): Notify the content lite NavigationController.
+}
+
+jboolean Toolbar::OnBackPressed(JNIEnv* env, jobject jobj) {
+  // TODO(dtrainor): Notify the content lite NavigationController.
+  // TODO(dtrainor): Find a way to determine whether or not we're at the end of
+  // our history stack.
+  return true;
+}
+
+void Toolbar::OnNavigationStateChanged(const GURL* url,
+                                       const SkBitmap* favicon,
+                                       const std::string* title) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+
+  ScopedJavaLocalRef<jstring> jurl;
+  ScopedJavaLocalRef<jobject> jfavicon;
+  ScopedJavaLocalRef<jstring> jtitle;
+
+  if (url)
+    jurl = base::android::ConvertUTF8ToJavaString(env, url->spec());
+
+  if (favicon)
+    jfavicon = gfx::ConvertToJavaBitmap(favicon);
+
+  if (title)
+    jtitle = base::android::ConvertUTF8ToJavaString(env, *title);
+
+  Java_Toolbar_onNavigationStateChanged(env,
+                                        java_obj_.obj(),
+                                        jurl.obj(),
+                                        jfavicon.obj(),
+                                        jtitle.obj());
+}
+
+}  // namespace blimp