Make WebView work for external displays (over Presentations).

ui/gfx/android/shared_device_display_info.cc

-// Copyright 2013 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 "ui/gfx/android/shared_device_display_info.h"
-
-#include "base/android/jni_android.h"
-#include "base/android/jni_string.h"
-#include "base/logging.h"
-#include "jni/DeviceDisplayInfo_jni.h"
-
-namespace gfx {
-
-// static JNI call
-static void UpdateSharedDeviceDisplayInfo(JNIEnv* env,
-                                          jobject obj,
-                                          jint display_height,
-                                          jint display_width,
-                                          jint physical_display_height,
-                                          jint physical_display_width,
-                                          jint bits_per_pixel,
-                                          jint bits_per_component,
-                                          jdouble dip_scale,
-                                          jint smallest_dip_width,
-                                          jint rotation_degrees) {
-  SharedDeviceDisplayInfo::GetInstance()->InvokeUpdate(env, obj,
-      display_height, display_width,
-      physical_display_height, physical_display_width,
-      bits_per_pixel, bits_per_component,
-      dip_scale, smallest_dip_width, rotation_degrees);
-}
-
-// static
-SharedDeviceDisplayInfo* SharedDeviceDisplayInfo::GetInstance() {
-  return Singleton<SharedDeviceDisplayInfo>::get();
-}
-
-int SharedDeviceDisplayInfo::GetDisplayHeight() {
-  base::AutoLock autolock(lock_);
-  DCHECK_NE(0, display_height_);
-  return display_height_;
-}
-
-int SharedDeviceDisplayInfo::GetDisplayWidth() {
-  base::AutoLock autolock(lock_);
-  DCHECK_NE(0, display_width_);
-  return display_width_;
-}
-
-int SharedDeviceDisplayInfo::GetPhysicalDisplayHeight() {
-  base::AutoLock autolock(lock_);
-  return physical_display_height_;
-}
-
-int SharedDeviceDisplayInfo::GetPhysicalDisplayWidth() {
-  base::AutoLock autolock(lock_);
-  return physical_display_width_;
-}
-
-int SharedDeviceDisplayInfo::GetBitsPerPixel() {
-  base::AutoLock autolock(lock_);
-  DCHECK_NE(0, bits_per_pixel_);
-  return bits_per_pixel_;
-}
-
-int SharedDeviceDisplayInfo::GetBitsPerComponent() {
-  base::AutoLock autolock(lock_);
-  DCHECK_NE(0, bits_per_component_);
-  return bits_per_component_;
-}
-
-double SharedDeviceDisplayInfo::GetDIPScale() {
-  base::AutoLock autolock(lock_);
-  DCHECK_NE(0, dip_scale_);
-  return dip_scale_;
-}
-
-int SharedDeviceDisplayInfo::GetSmallestDIPWidth() {
-  base::AutoLock autolock(lock_);
-  DCHECK_NE(0, smallest_dip_width_);
-  return smallest_dip_width_;
-}
-
-int SharedDeviceDisplayInfo::GetRotationDegrees() {
-  base::AutoLock autolock(lock_);
-  return rotation_degrees_;
-}
-
-// static
-bool SharedDeviceDisplayInfo::RegisterSharedDeviceDisplayInfo(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-void SharedDeviceDisplayInfo::InvokeUpdate(JNIEnv* env,
-                                           jobject obj,
-                                           jint display_height,
-                                           jint display_width,
-                                           jint physical_display_height,
-                                           jint physical_display_width,
-                                           jint bits_per_pixel,
-                                           jint bits_per_component,
-                                           jdouble dip_scale,
-                                           jint smallest_dip_width,
-                                           jint rotation_degrees) {
-  base::AutoLock autolock(lock_);
-
-  UpdateDisplayInfo(env, obj,
-      display_height, display_width,
-      physical_display_height, physical_display_width,
-      bits_per_pixel, bits_per_component, dip_scale,
-      smallest_dip_width, rotation_degrees);
-}
-
-SharedDeviceDisplayInfo::SharedDeviceDisplayInfo()
-    : display_height_(0),
-      display_width_(0),
-      bits_per_pixel_(0),
-      bits_per_component_(0),
-      dip_scale_(0),
-      smallest_dip_width_(0) {
-  JNIEnv* env = base::android::AttachCurrentThread();
-  j_device_info_.Reset(
-      Java_DeviceDisplayInfo_create(
-          env, base::android::GetApplicationContext()));
-  UpdateDisplayInfo(env, j_device_info_.obj(),
-      Java_DeviceDisplayInfo_getDisplayHeight(env, j_device_info_.obj()),
-      Java_DeviceDisplayInfo_getDisplayWidth(env, j_device_info_.obj()),
-      Java_DeviceDisplayInfo_getPhysicalDisplayHeight(env,
-                                                      j_device_info_.obj()),
-      Java_DeviceDisplayInfo_getPhysicalDisplayWidth(env, j_device_info_.obj()),
-      Java_DeviceDisplayInfo_getBitsPerPixel(env, j_device_info_.obj()),
-      Java_DeviceDisplayInfo_getBitsPerComponent(env, j_device_info_.obj()),
-      Java_DeviceDisplayInfo_getDIPScale(env, j_device_info_.obj()),
-      Java_DeviceDisplayInfo_getSmallestDIPWidth(env, j_device_info_.obj()),
-      Java_DeviceDisplayInfo_getRotationDegrees(env, j_device_info_.obj()));
-}
-
-SharedDeviceDisplayInfo::~SharedDeviceDisplayInfo() {
-}
-
-void SharedDeviceDisplayInfo::UpdateDisplayInfo(JNIEnv* env,
-                                                jobject jobj,
-                                                jint display_height,
-                                                jint display_width,
-                                                jint physical_display_height,
-                                                jint physical_display_width,
-                                                jint bits_per_pixel,
-                                                jint bits_per_component,
-                                                jdouble dip_scale,
-                                                jint smallest_dip_width,
-                                                jint rotation_degrees) {
-  display_height_ = static_cast<int>(display_height);
-  display_width_ = static_cast<int>(display_width);
-  physical_display_height_ = static_cast<int>(physical_display_height);
-  physical_display_width_ = static_cast<int>(physical_display_width);
-  bits_per_pixel_ = static_cast<int>(bits_per_pixel);
-  bits_per_component_ = static_cast<int>(bits_per_component);
-  dip_scale_ = static_cast<double>(dip_scale);
-  smallest_dip_width_ = static_cast<int>(smallest_dip_width);
-  rotation_degrees_ = static_cast<int>(rotation_degrees);
-}
-
-}  // namespace gfx