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// Copyright 2017 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 "extensions/browser/requirements_checker.h"
#include "base/bind.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/gpu_feature_checker.h"
#include "extensions/common/extension.h"
#include "extensions/common/manifest_handlers/requirements_info.h"
#include "extensions/strings/grit/extensions_strings.h"
#include "gpu/config/gpu_feature_type.h"
#include "ui/base/l10n/l10n_util.h"
namespace extensions {
RequirementsChecker::RequirementsChecker(
scoped_refptr<const Extension> extension)
: PreloadCheck(extension) {}
RequirementsChecker::~RequirementsChecker() {}
void RequirementsChecker::Start(ResultCallback callback) {
DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
const RequirementsInfo& requirements =
RequirementsInfo::GetRequirements(extension());
#if !defined(USE_AURA)
if (requirements.window_shape)
errors_.insert(WINDOW_SHAPE_NOT_SUPPORTED);
#endif
callback_ = std::move(callback);
if (requirements.webgl) {
scoped_refptr<content::GpuFeatureChecker> webgl_checker =
content::GpuFeatureChecker::Create(
gpu::GPU_FEATURE_TYPE_ACCELERATED_WEBGL,
base::BindOnce(&RequirementsChecker::VerifyWebGLAvailability,
weak_ptr_factory_.GetWeakPtr()));
webgl_checker->CheckGpuFeatureAvailability();
} else {
PostRunCallback();
}
}
std::u16string RequirementsChecker::GetErrorMessage() const {
// Join the error messages into one string.
std::vector<std::string> messages;
if (errors_.count(WEBGL_NOT_SUPPORTED)) {
messages.push_back(
l10n_util::GetStringUTF8(IDS_EXTENSION_WEBGL_NOT_SUPPORTED));
}
#if !defined(USE_AURA)
if (errors_.count(WINDOW_SHAPE_NOT_SUPPORTED)) {
messages.push_back(
l10n_util::GetStringUTF8(IDS_EXTENSION_WINDOW_SHAPE_NOT_SUPPORTED));
}
#endif
return base::UTF8ToUTF16(base::JoinString(messages, " "));
}
void RequirementsChecker::VerifyWebGLAvailability(bool available) {
if (!available)
errors_.insert(WEBGL_NOT_SUPPORTED);
PostRunCallback();
}
void RequirementsChecker::PostRunCallback() {
// TODO(michaelpg): This always forces the callback to run asynchronously
// to maintain the assumption in
// ExtensionService::LoadExtensionsFromCommandLineFlag(). Remove these helper
// functions after crbug.com/708354 is addressed.
content::GetUIThreadTaskRunner({})->PostTask(
FROM_HERE, base::BindOnce(&RequirementsChecker::RunCallback,
weak_ptr_factory_.GetWeakPtr()));
}
void RequirementsChecker::RunCallback() {
DCHECK(callback_);
std::move(callback_).Run(errors_);
}
} // namespace extensions
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