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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 "chrome/browser/chromeos/extensions/wallpaper_private_api.h"
#include "ash/desktop_background/desktop_background_controller.h"
#include "ash/shell.h"
#include "base/file_util.h"
#include "base/json/json_writer.h"
#include "base/memory/scoped_ptr.h"
#include "base/path_service.h"
#include "base/synchronization/cancellation_flag.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chromeos/login/user_manager.h"
#include "chrome/browser/chromeos/login/wallpaper_manager.h"
#include "chrome/browser/extensions/event_router.h"
#include "chrome/browser/image_decoder.h"
#include "chrome/common/chrome_paths.h"
#include "content/public/browser/browser_thread.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_fetcher_delegate.h"
#include "net/url_request/url_request_status.h"
#include "googleurl/src/gurl.h"
#include "grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"
using base::BinaryValue;
using content::BrowserThread;
bool WallpaperStringsFunction::RunImpl() {
DictionaryValue* dict = new DictionaryValue();
SetResult(dict);
#define SET_STRING(id, idr) \
dict->SetString(id, l10n_util::GetStringUTF16(idr))
SET_STRING("searchTextLabel", IDS_WALLPAPER_MANAGER_SEARCH_TEXT_LABEL);
SET_STRING("authorLabel", IDS_WALLPAPER_MANAGER_AUTHOR_LABEL);
SET_STRING("customCategoryLabel",
IDS_WALLPAPER_MANAGER_CUSTOM_CATEGORY_LABEL);
SET_STRING("selectCustomLabel",
IDS_WALLPAPER_MANAGER_SELECT_CUSTOM_LABEL);
SET_STRING("positionLabel", IDS_WALLPAPER_MANAGER_POSITION_LABEL);
SET_STRING("colorLabel", IDS_WALLPAPER_MANAGER_COLOR_LABEL);
SET_STRING("previewLabel", IDS_WALLPAPER_MANAGER_PREVIEW_LABEL);
SET_STRING("downloadingLabel", IDS_WALLPAPER_MANAGER_DOWNLOADING_LABEL);
SET_STRING("setWallpaperDaily", IDS_OPTIONS_SET_WALLPAPER_DAILY);
SET_STRING("searchTextLabel", IDS_WALLPAPER_MANAGER_SEARCH_TEXT_LABEL);
#undef SET_STRING
ChromeURLDataManager::DataSource::SetFontAndTextDirection(dict);
return true;
}
class WallpaperSetWallpaperFunction::WallpaperDecoder
: public ImageDecoder::Delegate {
public:
explicit WallpaperDecoder(
scoped_refptr<WallpaperSetWallpaperFunction> function)
: function_(function) {
}
void Start(const std::string& image_data) {
image_decoder_ = new ImageDecoder(this, image_data,
ImageDecoder::ROBUST_JPEG_CODEC);
image_decoder_->Start();
}
void Cancel() {
cancel_flag_.Set();
function_->SendResponse(false);
}
virtual void OnImageDecoded(const ImageDecoder* decoder,
const SkBitmap& decoded_image) OVERRIDE {
gfx::ImageSkia final_image(decoded_image);
if (cancel_flag_.IsSet()) {
delete this;
return;
}
function_->OnWallpaperDecoded(final_image);
delete this;
}
virtual void OnDecodeImageFailed(const ImageDecoder* decoder) OVERRIDE {
if (cancel_flag_.IsSet()) {
delete this;
return;
}
function_->OnFail();
// TODO(bshe): Dispatches an encoding error event.
delete this;
}
private:
scoped_refptr<WallpaperSetWallpaperFunction> function_;
scoped_refptr<ImageDecoder> image_decoder_;
base::CancellationFlag cancel_flag_;
DISALLOW_COPY_AND_ASSIGN(WallpaperDecoder);
};
WallpaperSetWallpaperFunction::WallpaperDecoder*
WallpaperSetWallpaperFunction::wallpaper_decoder_;
WallpaperSetWallpaperFunction::WallpaperSetWallpaperFunction() {
}
WallpaperSetWallpaperFunction::~WallpaperSetWallpaperFunction() {
}
bool WallpaperSetWallpaperFunction::RunImpl() {
BinaryValue* input = NULL;
if (args_ == NULL || !args_->GetBinary(0, &input)) {
return false;
}
std::string layout_string;
if (!args_->GetString(1, &layout_string) || layout_string.empty()) {
return false;
}
layout_ = ash::GetLayoutEnum(layout_string);
std::string url;
if (!args_->GetString(2, &url) || url.empty()) {
return false;
}
file_name_ = GURL(url).ExtractFileName();
// Gets email address while at UI thread.
email_ = chromeos::UserManager::Get()->GetLoggedInUser().email();
image_data_.assign(input->GetBuffer(), input->GetSize());
if (wallpaper_decoder_)
wallpaper_decoder_->Cancel();
wallpaper_decoder_ = new WallpaperDecoder(this);
wallpaper_decoder_->Start(image_data_);
return true;
}
void WallpaperSetWallpaperFunction::OnWallpaperDecoded(
const gfx::ImageSkia& wallpaper) {
wallpaper_ = wallpaper;
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
base::Bind(&WallpaperSetWallpaperFunction::SaveToFile,
this));
}
void WallpaperSetWallpaperFunction::OnFail() {
wallpaper_decoder_ = NULL;
SendResponse(false);
}
void WallpaperSetWallpaperFunction::SaveToFile() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
FilePath wallpaper_dir;
CHECK(PathService::Get(chrome::DIR_CHROMEOS_WALLPAPERS, &wallpaper_dir));
if (!file_util::DirectoryExists(wallpaper_dir) &&
!file_util::CreateDirectory(wallpaper_dir)) {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&WallpaperSetWallpaperFunction::OnFail,
this));
return;
}
FilePath file_path = wallpaper_dir.Append(file_name_);
if (file_util::PathExists(file_path) ||
file_util::WriteFile(file_path, image_data_.c_str(),
image_data_.size()) != -1 ) {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&WallpaperSetWallpaperFunction::SetDecodedWallpaper,
this));
} else {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&WallpaperSetWallpaperFunction::OnFail,
this));
}
}
void WallpaperSetWallpaperFunction::SetDecodedWallpaper() {
chromeos::WallpaperManager* wallpaper_manager =
chromeos::WallpaperManager::Get();
wallpaper_manager->SetWallpaperFromImageSkia(wallpaper_, layout_);
bool is_persistent =
!chromeos::UserManager::Get()->IsCurrentUserEphemeral();
chromeos::WallpaperInfo info = {
file_name_,
layout_,
chromeos::User::ONLINE,
base::Time::Now().LocalMidnight()
};
wallpaper_manager->SetUserWallpaperInfo(email_, info, is_persistent);
wallpaper_decoder_ = NULL;
SendResponse(true);
}
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