third_party/WebKit/Source/modules/quota/DeprecatedStorageInfo.cpp

/*
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 * modification, are permitted provided that the following conditions are
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#include "modules/quota/DeprecatedStorageInfo.h"

#include "core/dom/ExceptionCode.h"
#include "core/dom/TaskRunnerHelper.h"
#include "modules/quota/DeprecatedStorageQuota.h"
#include "modules/quota/StorageErrorCallback.h"
#include "modules/quota/StorageQuotaCallback.h"
#include "modules/quota/StorageUsageCallback.h"
#include "platform/WebTaskRunner.h"
#include "platform/bindings/ScriptState.h"
#include "public/platform/WebTraceLocation.h"

namespace blink {

DeprecatedStorageInfo::DeprecatedStorageInfo() {}

void DeprecatedStorageInfo::queryUsageAndQuota(
    ScriptState* script_state,
    int storage_type,
    StorageUsageCallback* success_callback,
    StorageErrorCallback* error_callback) {
  // Dispatching the request to DeprecatedStorageQuota, as this interface is
  // deprecated in favor of DeprecatedStorageQuota.
  DeprecatedStorageQuota* storage_quota = GetStorageQuota(storage_type);
  if (!storage_quota) {
    // Unknown storage type is requested.
    TaskRunnerHelper::Get(TaskType::kMiscPlatformAPI, script_state)
        ->PostTask(BLINK_FROM_HERE, StorageErrorCallback::CreateSameThreadTask(
                                        error_callback, kNotSupportedError));
    return;
  }
  storage_quota->queryUsageAndQuota(script_state, success_callback,
                                    error_callback);
}

void DeprecatedStorageInfo::requestQuota(ScriptState* script_state,
                                         int storage_type,
                                         unsigned long long new_quota_in_bytes,
                                         StorageQuotaCallback* success_callback,
                                         StorageErrorCallback* error_callback) {
  // Dispatching the request to DeprecatedStorageQuota, as this interface is
  // deprecated in favor of DeprecatedStorageQuota.
  DeprecatedStorageQuota* storage_quota = GetStorageQuota(storage_type);
  if (!storage_quota) {
    // Unknown storage type is requested.
    TaskRunnerHelper::Get(TaskType::kMiscPlatformAPI, script_state)
        ->PostTask(BLINK_FROM_HERE, StorageErrorCallback::CreateSameThreadTask(
                                        error_callback, kNotSupportedError));
    return;
  }
  storage_quota->requestQuota(script_state, new_quota_in_bytes,
                              success_callback, error_callback);
}

DeprecatedStorageQuota* DeprecatedStorageInfo::GetStorageQuota(
    int storage_type) {
  switch (storage_type) {
    case kTemporary:
      if (!temporary_storage_)
        temporary_storage_ =
            DeprecatedStorageQuota::Create(DeprecatedStorageQuota::kTemporary);
      return temporary_storage_.Get();
    case kPersistent:
      if (!persistent_storage_)
        persistent_storage_ =
            DeprecatedStorageQuota::Create(DeprecatedStorageQuota::kPersistent);
      return persistent_storage_.Get();
  }
  return 0;
}

DEFINE_TRACE(DeprecatedStorageInfo) {
  visitor->Trace(temporary_storage_);
  visitor->Trace(persistent_storage_);
}

}  // namespace blink