Implement a bluetooth picker dialog for Android

chrome/browser/ui/android/bluetooth_chooser_android.cc

+// 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 "chrome/browser/ui/android/bluetooth_chooser_android.h"
+
+#include "base/android/jni_android.h"
+#include "base/android/jni_string.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/ssl/connection_security.h"
+#include "chrome/browser/ui/android/window_android_helper.h"
+#include "content/public/browser/android/content_view_core.h"
+#include "jni/BluetoothChooserDialog_jni.h"
+#include "ui/android/window_android.h"
+
+using base::android::AttachCurrentThread;
+using base::android::ConvertUTF8ToJavaString;
+using base::android::ConvertUTF16ToJavaString;
+using base::android::ScopedJavaLocalRef;
+
+BluetoothChooserAndroid::BluetoothChooserAndroid(
+    content::WebContents* web_contents,
+    const EventHandler& event_handler,
+    const GURL& origin)
+    : event_handler_(event_handler) {
+  base::android::ScopedJavaLocalRef<jobject> window_android =
+      content::ContentViewCore::FromWebContents(
+          web_contents)->GetWindowAndroid()->GetJavaObject();
+
+  // Create (and show) the BluetoothChooser dialog.
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> origin_string =
+      ConvertUTF8ToJavaString(env, origin.spec());
+  java_dialog_.Reset(Java_BluetoothChooserDialog_create(
+      env, window_android.obj(), origin_string.obj(),
+      connection_security::GetSecurityLevelForWebContents(web_contents),
+      reinterpret_cast<intptr_t>(this)));
+}
+
+BluetoothChooserAndroid::~BluetoothChooserAndroid() {
+  Java_BluetoothChooserDialog_closeDialog(AttachCurrentThread(),
+                                          java_dialog_.obj());
+}
+
+void BluetoothChooserAndroid::SetAdapterPresence(AdapterPresence presence) {
+  if (presence != AdapterPresence::POWERED_ON) {
+    Java_BluetoothChooserDialog_notifyAdapterTurnedOff(AttachCurrentThread(),
+                                                       java_dialog_.obj());
+  }
+}
+
+void BluetoothChooserAndroid::ShowDiscoveryState(DiscoveryState state) {
+  NOTIMPLEMENTED();  // Currently we don't show a 'still searching' state.
+}
+
+void BluetoothChooserAndroid::AddDevice(const std::string& device_id,
+                                        const base::string16& device_name) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> java_device_id =
+      ConvertUTF8ToJavaString(env, device_id);
+  ScopedJavaLocalRef<jstring> java_device_name =
+      ConvertUTF16ToJavaString(env, device_name);
+  Java_BluetoothChooserDialog_addDevice(
+      env, java_dialog_.obj(), java_device_id.obj(), java_device_name.obj());
+}
+
+void BluetoothChooserAndroid::RemoveDevice(const std::string& device_id) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jstring> java_device_id =
+      ConvertUTF16ToJavaString(env, base::UTF8ToUTF16(device_id));
+  Java_BluetoothChooserDialog_removeDevice(env, java_dialog_.obj(),
+                                           java_device_id.obj());
+}
+
+void BluetoothChooserAndroid::OnDeviceSelected(JNIEnv* env,
+                                               jobject obj,
+                                               jstring device_id) {
+  std::string id = base::android::ConvertJavaStringToUTF8(env, device_id);
+  if (id.empty()) {
+    event_handler_.Run(Event::CANCELLED, "");
+  } else {
+    event_handler_.Run(Event::SELECTED, id);
+  }
+}
+
+void BluetoothChooserAndroid::RestartSearch(JNIEnv* env, jobject obj) {
+  event_handler_.Run(Event::RESCAN, "");
+}
+
+void BluetoothChooserAndroid::ShowBluetoothOverviewLink(JNIEnv* env,
+                                                        jobject obj) {
+  event_handler_.Run(Event::SHOW_OVERVIEW_HELP, "");
+}
+
+void BluetoothChooserAndroid::ShowBluetoothPairingLink(JNIEnv* env,
+                                                       jobject obj) {
+  event_handler_.Run(Event::SHOW_PAIRING_HELP, "");
+}
+
+void BluetoothChooserAndroid::ShowBluetoothAdapterOffLink(JNIEnv* env,
+                                                          jobject obj) {
+  event_handler_.Run(Event::SHOW_ADAPTER_OFF_HELP, "");
+}
+
+// static
+bool BluetoothChooserAndroid::Register(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}