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// Copyright (c) 2012 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 "content/browser/android/child_process_launcher_android.h"
#include "base/android/jni_android.h"
#include "base/android/jni_array.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "content/browser/frame_host/render_frame_host_impl.h"
#include "content/browser/media/android/browser_media_player_manager.h"
#include "content/browser/media/media_web_contents_observer.h"
#include "content/browser/renderer_host/compositor_impl_android.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/common/content_switches.h"
#include "jni/ChildProcessLauncher_jni.h"
#include "media/base/android/media_player_android.h"
#include "ui/gl/android/surface_texture.h"
using base::android::AttachCurrentThread;
using base::android::ToJavaArrayOfStrings;
using base::android::ScopedJavaGlobalRef;
using base::android::ScopedJavaLocalRef;
using content::StartChildProcessCallback;
namespace content {
namespace {
// Pass a java surface object to the MediaPlayerAndroid object
// identified by render process handle, render frame ID and player ID.
static void SetSurfacePeer(
const base::android::JavaRef<jobject>& surface,
base::ProcessHandle render_process_handle,
int render_frame_id,
int player_id) {
int render_process_id = 0;
RenderProcessHost::iterator it = RenderProcessHost::AllHostsIterator();
while (!it.IsAtEnd()) {
if (it.GetCurrentValue()->GetHandle() == render_process_handle) {
render_process_id = it.GetCurrentValue()->GetID();
break;
}
it.Advance();
}
if (!render_process_id) {
DVLOG(1) << "Cannot find render process for render_process_handle "
<< render_process_handle;
return;
}
RenderFrameHostImpl* frame =
RenderFrameHostImpl::FromID(render_process_id, render_frame_id);
if (!frame) {
DVLOG(1) << "Cannot find frame for render_frame_id " << render_frame_id;
return;
}
RenderViewHostImpl* view =
static_cast<RenderViewHostImpl*>(frame->GetRenderViewHost());
BrowserMediaPlayerManager* player_manager =
view->media_web_contents_observer()->GetMediaPlayerManager(frame);
if (!player_manager) {
DVLOG(1) << "Cannot find the media player manager for frame " << frame;
return;
}
media::MediaPlayerAndroid* player = player_manager->GetPlayer(player_id);
if (!player) {
DVLOG(1) << "Cannot find media player for player_id " << player_id;
return;
}
if (player != player_manager->GetFullscreenPlayer()) {
gfx::ScopedJavaSurface scoped_surface(surface);
player->SetVideoSurface(scoped_surface.Pass());
}
}
} // anonymous namespace
// Called from ChildProcessLauncher.java when the ChildProcess was
// started.
// |client_context| is the pointer to StartChildProcessCallback which was
// passed in from StartChildProcess.
// |handle| is the processID of the child process as originated in Java, 0 if
// the ChildProcess could not be created.
static void OnChildProcessStarted(JNIEnv*,
jclass,
jlong client_context,
jint handle) {
StartChildProcessCallback* callback =
reinterpret_cast<StartChildProcessCallback*>(client_context);
if (handle)
callback->Run(static_cast<base::ProcessHandle>(handle));
delete callback;
}
void StartChildProcess(
const base::CommandLine::StringVector& argv,
int child_process_id,
scoped_ptr<content::FileDescriptorInfo> files_to_register,
const StartChildProcessCallback& callback) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
// Create the Command line String[]
ScopedJavaLocalRef<jobjectArray> j_argv = ToJavaArrayOfStrings(env, argv);
size_t file_count = files_to_register->GetMappingSize();
DCHECK(file_count > 0);
ScopedJavaLocalRef<jintArray> j_file_ids(env, env->NewIntArray(file_count));
base::android::CheckException(env);
jint* file_ids = env->GetIntArrayElements(j_file_ids.obj(), NULL);
base::android::CheckException(env);
ScopedJavaLocalRef<jintArray> j_file_fds(env, env->NewIntArray(file_count));
base::android::CheckException(env);
jint* file_fds = env->GetIntArrayElements(j_file_fds.obj(), NULL);
base::android::CheckException(env);
ScopedJavaLocalRef<jbooleanArray> j_file_auto_close(
env, env->NewBooleanArray(file_count));
base::android::CheckException(env);
jboolean* file_auto_close =
env->GetBooleanArrayElements(j_file_auto_close.obj(), NULL);
base::android::CheckException(env);
for (size_t i = 0; i < file_count; ++i) {
// Owners of passed descriptors can outlive this function and we don't know
// when it is safe to close() them. So we pass dup()-ed FD and
// let ChildProcessLauncher in java take care of their lifetimes.
// TODO(morrita): Drop FileDescriptorInfo.mAutoClose on Java side.
file_auto_close[i] = true; // This indicates ownership transfer.
file_ids[i] = files_to_register->GetIDAt(i);
file_fds[i] = dup(files_to_register->GetFDAt(i));
PCHECK(0 <= file_fds[i]);
}
env->ReleaseIntArrayElements(j_file_ids.obj(), file_ids, 0);
env->ReleaseIntArrayElements(j_file_fds.obj(), file_fds, 0);
env->ReleaseBooleanArrayElements(j_file_auto_close.obj(), file_auto_close, 0);
Java_ChildProcessLauncher_start(env,
base::android::GetApplicationContext(),
j_argv.obj(),
child_process_id,
j_file_ids.obj(),
j_file_fds.obj(),
j_file_auto_close.obj(),
reinterpret_cast<intptr_t>(new StartChildProcessCallback(callback)));
}
void StopChildProcess(base::ProcessHandle handle) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
Java_ChildProcessLauncher_stop(env, static_cast<jint>(handle));
}
bool IsChildProcessOomProtected(base::ProcessHandle handle) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
return Java_ChildProcessLauncher_isOomProtected(env,
static_cast<jint>(handle));
}
void SetChildProcessInForeground(base::ProcessHandle handle,
bool in_foreground) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
return Java_ChildProcessLauncher_setInForeground(env,
static_cast<jint>(handle), static_cast<jboolean>(in_foreground));
}
void EstablishSurfacePeer(
JNIEnv* env, jclass clazz,
jint pid, jobject surface, jint primary_id, jint secondary_id) {
ScopedJavaGlobalRef<jobject> jsurface;
jsurface.Reset(env, surface);
if (jsurface.is_null())
return;
DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, base::Bind(
&SetSurfacePeer, jsurface, pid, primary_id, secondary_id));
}
void RegisterViewSurface(int surface_id, jobject j_surface) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
Java_ChildProcessLauncher_registerViewSurface(env, surface_id, j_surface);
}
void UnregisterViewSurface(int surface_id) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
Java_ChildProcessLauncher_unregisterViewSurface(env, surface_id);
}
void CreateSurfaceTextureSurface(int surface_texture_id,
int client_id,
gfx::SurfaceTexture* surface_texture) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
Java_ChildProcessLauncher_createSurfaceTextureSurface(
env,
surface_texture_id,
client_id,
surface_texture->j_surface_texture().obj());
}
void DestroySurfaceTextureSurface(int surface_texture_id, int client_id) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
Java_ChildProcessLauncher_destroySurfaceTextureSurface(
env, surface_texture_id, client_id);
}
gfx::ScopedJavaSurface GetSurfaceTextureSurface(int surface_texture_id,
int client_id) {
JNIEnv* env = AttachCurrentThread();
DCHECK(env);
return gfx::ScopedJavaSurface::AcquireExternalSurface(
Java_ChildProcessLauncher_getSurfaceTextureSurface(
env, surface_texture_id, client_id).obj());
}
jboolean IsSingleProcess(JNIEnv* env, jclass clazz) {
return base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess);
}
bool RegisterChildProcessLauncher(JNIEnv* env) {
return RegisterNativesImpl(env);
}
} // namespace content
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