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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/ui/webui/options/chromeos/user_image_source.h"
#include "base/memory/ref_counted_memory.h"
#include "base/message_loop.h"
#include "base/string_split.h"
#include "chrome/browser/chromeos/login/default_user_images.h"
#include "chrome/browser/chromeos/login/user_manager.h"
#include "chrome/common/url_constants.h"
#include "googleurl/src/url_parse.h"
#include "grit/theme_resources.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/gfx/codec/png_codec.h"
#include "ui/webui/web_ui_util.h"
namespace {
// Animated key is used in user image URL requests to specify that
// animated version of user image is required. Without that key
// non-animated version of user image should be returned.
const char kKeyAnimated[] = "animated";
// Parses the user image URL, which looks like
// "chrome://userimage/user@host?key1=value1&...&key_n=value_n@<scale>x",
// to user email, optional parameters and scale factor.
void ParseRequest(const GURL& url,
std::string* email,
bool* is_image_animated,
ui::ScaleFactor* scale_factor) {
DCHECK(url.is_valid());
webui::ParsePathAndScale(url, email, scale_factor);
std::string url_spec = url.possibly_invalid_spec();
url_parse::Component query = url.parsed_for_possibly_invalid_spec().query;
url_parse::Component key, value;
*is_image_animated = false;
while (ExtractQueryKeyValue(url_spec.c_str(), &query, &key, &value)) {
if (url_spec.substr(key.begin, key.len) == kKeyAnimated) {
*is_image_animated = true;
break;
}
}
}
} // namespace
namespace chromeos {
namespace options {
base::RefCountedMemory* UserImageSource::GetUserImage(
const std::string& email,
bool is_image_animated,
ui::ScaleFactor scale_factor) const {
const chromeos::User* user = chromeos::UserManager::Get()->FindUser(email);
if (user) {
if (user->has_animated_image() && is_image_animated) {
return new base::RefCountedBytes(user->animated_image());
} else if (user->has_raw_image()) {
return new base::RefCountedBytes(user->raw_image());
} else if (user->image_is_stub()) {
return ResourceBundle::GetSharedInstance().
LoadDataResourceBytesForScale(IDR_PROFILE_PICTURE_LOADING,
scale_factor);
} else if (user->HasDefaultImage()) {
return ResourceBundle::GetSharedInstance().
LoadDataResourceBytesForScale(
kDefaultImageResourceIDs[user->image_index()],
scale_factor);
} else {
NOTREACHED() << "User with custom image missing raw data";
}
}
return ResourceBundle::GetSharedInstance().
LoadDataResourceBytesForScale(IDR_LOGIN_DEFAULT_USER, scale_factor);
}
UserImageSource::UserImageSource() {
}
UserImageSource::~UserImageSource() {}
std::string UserImageSource::GetSource() {
return chrome::kChromeUIUserImageHost;
}
void UserImageSource::StartDataRequest(
const std::string& path,
bool is_incognito,
const content::URLDataSource::GotDataCallback& callback) {
std::string email;
bool is_image_animated = false;
ui::ScaleFactor scale_factor;
GURL url(chrome::kChromeUIUserImageURL + path);
ParseRequest(url, &email, &is_image_animated, &scale_factor);
callback.Run(GetUserImage(email, is_image_animated, scale_factor));
}
std::string UserImageSource::GetMimeType(const std::string& path) const {
// We need to explicitly return a mime type, otherwise if the user tries to
// drag the image they get no extension.
std::string email;
bool is_image_animated = false;
ui::ScaleFactor scale_factor;
GURL url(chrome::kChromeUIUserImageURL + path);
ParseRequest(url, &email, &is_image_animated, &scale_factor);
if (is_image_animated) {
const chromeos::User* user = chromeos::UserManager::Get()->FindUser(email);
if (user && user->has_animated_image())
return "image/gif";
}
return "image/png";
}
} // namespace options
} // namespace chromeos
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