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// Copyright 2014 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 "components/web_cache/renderer/web_cache_render_process_observer.h"
#include <limits>
#include "base/bind.h"
#include "base/numerics/safe_conversions.h"
#include "content/public/common/service_registry.h"
#include "content/public/renderer/render_thread.h"
#include "third_party/WebKit/public/web/WebCache.h"
namespace web_cache {
namespace {
const size_t kUnitializedCacheCapacity = UINT_MAX;
}
WebCacheRenderProcessObserver::WebCacheRenderProcessObserver()
: clear_cache_pending_(false),
webkit_initialized_(false),
pending_cache_min_dead_capacity_(0),
pending_cache_max_dead_capacity_(0),
pending_cache_capacity_(kUnitializedCacheCapacity) {
content::ServiceRegistry* service_registry =
content::RenderThread::Get()->GetServiceRegistry();
service_registry->AddService(base::Bind(
&WebCacheRenderProcessObserver::BindRequest, base::Unretained(this)));
}
WebCacheRenderProcessObserver::~WebCacheRenderProcessObserver() {
}
void WebCacheRenderProcessObserver::BindRequest(
mojo::InterfaceRequest<mojom::WebCache> web_cache_request) {
bindings_.AddBinding(this, std::move(web_cache_request));
}
void WebCacheRenderProcessObserver::ExecutePendingClearCache() {
if (clear_cache_pending_ && webkit_initialized_) {
clear_cache_pending_ = false;
blink::WebCache::clear();
}
}
void WebCacheRenderProcessObserver::WebKitInitialized() {
webkit_initialized_ = true;
if (pending_cache_capacity_ != kUnitializedCacheCapacity) {
blink::WebCache::setCapacities(pending_cache_min_dead_capacity_,
pending_cache_max_dead_capacity_,
pending_cache_capacity_);
}
}
void WebCacheRenderProcessObserver::OnRenderProcessShutdown() {
webkit_initialized_ = false;
}
void WebCacheRenderProcessObserver::SetCacheCapacities(
uint64_t min_dead_capacity,
uint64_t max_dead_capacity,
uint64_t capacity64) {
size_t min_dead_capacity2 = base::checked_cast<size_t>(min_dead_capacity);
size_t max_dead_capacity2 = base::checked_cast<size_t>(max_dead_capacity);
size_t capacity = base::checked_cast<size_t>(capacity64);
if (!webkit_initialized_) {
pending_cache_min_dead_capacity_ = min_dead_capacity2;
pending_cache_max_dead_capacity_ = max_dead_capacity2;
pending_cache_capacity_ = capacity;
return;
}
blink::WebCache::setCapacities(min_dead_capacity2, max_dead_capacity2,
capacity);
}
void WebCacheRenderProcessObserver::ClearCache(bool on_navigation) {
if (on_navigation || !webkit_initialized_)
clear_cache_pending_ = true;
else
blink::WebCache::clear();
}
} // namespace web_cache
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