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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/apps/app_service/app_icon_source.h"
#include <string>
#include <string_view>
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/memory/ref_counted_memory.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "chrome/browser/apps/app_service/app_icon/dip_px_util.h"
#include "chrome/browser/apps/app_service/app_service_proxy.h"
#include "chrome/browser/apps/app_service/app_service_proxy_factory.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/url_constants.h"
#include "components/services/app_service/public/cpp/app_types.h"
#include "components/services/app_service/public/cpp/icon_types.h"
#include "extensions/grit/extensions_browser_resources.h"
#include "ui/base/resource/resource_bundle.h"
#include "url/gurl.h"
namespace apps {
namespace {
void LoadDefaultImage(content::URLDataSource::GotDataCallback callback) {
std::string_view contents =
ui::ResourceBundle::GetSharedInstance().GetRawDataResourceForScale(
IDR_APP_DEFAULT_ICON, apps_util::GetPrimaryDisplayUIScaleFactor());
base::RefCountedBytes* image_bytes = new base::RefCountedBytes();
image_bytes->as_vector().assign(contents.begin(), contents.end());
std::move(callback).Run(image_bytes);
}
void RunCallback(content::URLDataSource::GotDataCallback callback,
apps::IconValuePtr iv) {
if (!iv || iv->compressed.empty()) {
LoadDefaultImage(std::move(callback));
return;
}
base::RefCountedBytes* image_bytes =
new base::RefCountedBytes(iv->compressed);
std::move(callback).Run(image_bytes);
}
} // namespace
AppIconSource::AppIconSource(Profile* profile) : profile_(profile) {}
AppIconSource::~AppIconSource() = default;
// static
GURL AppIconSource::GetIconURL(const std::string& app_id, int icon_size) {
GURL icon_url(base::StringPrintf("%s%s/%d", chrome::kChromeUIAppIconURL,
app_id.c_str(), icon_size));
CHECK(icon_url.is_valid());
return icon_url;
}
std::string AppIconSource::GetSource() {
return chrome::kChromeUIAppIconHost;
}
void AppIconSource::StartDataRequest(
const GURL& url,
const content::WebContents::Getter& wc_getter,
content::URLDataSource::GotDataCallback callback) {
std::string request_path = content::URLDataSource::URLToRequestPath(url);
std::vector<std::string> path_parts = base::SplitString(
request_path, "/", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL);
// Check whether data exists, load default image if not.
if (request_path.empty() || path_parts.size() < 2) {
LoadDefaultImage(std::move(callback));
return;
}
// Check whether data is of correct type, load default image if not.
std::string size_param = base::ToLowerASCII(path_parts[1]);
size_t query_position = size_param.find("?");
if (query_position != std::string::npos) {
size_param = size_param.substr(0, query_position);
}
int size_in_dip = 0;
if (!base::StringToInt(size_param, &size_in_dip) || size_in_dip < 1) {
LoadDefaultImage(std::move(callback));
return;
}
auto* app_service_proxy =
apps::AppServiceProxyFactory::GetForProfile(profile_);
const std::string app_id = path_parts[0];
app_service_proxy->LoadIcon(
app_id, IconType::kCompressed, size_in_dip,
/*allow_placeholder_icon=*/false,
base::BindOnce(&RunCallback, std::move(callback)));
}
std::string AppIconSource::GetMimeType(const GURL&) {
// We need to explicitly return a mime type, otherwise if the user tries to
// drag the image they get no extension.
return "image/png";
}
bool AppIconSource::AllowCaching() {
// Should not be cached as caching is performed by proxy.
return false;
}
bool AppIconSource::ShouldReplaceExistingSource() {
// The source doesn't maintain its own state so there's no need to replace it.
return false;
}
} // namespace apps
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