mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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140 lines
4.0 KiB
C++
140 lines
4.0 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DeviceStorage_h
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#define DeviceStorage_h
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#include "nsIDOMDeviceStorage.h"
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#include "nsIFile.h"
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#include "nsIPrincipal.h"
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#include "nsIObserver.h"
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#include "nsDOMEventTargetHelper.h"
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#include "mozilla/StaticPtr.h"
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class DeviceStorageFile MOZ_FINAL
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: public nsISupports {
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public:
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nsCOMPtr<nsIFile> mFile;
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nsString mPath;
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nsString mStorageType;
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bool mEditable;
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DeviceStorageFile(const nsAString& aStorageType, nsIFile* aFile, const nsAString& aPath);
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DeviceStorageFile(const nsAString& aStorageType, nsIFile* aFile);
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void SetPath(const nsAString& aPath);
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void SetEditable(bool aEditable);
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NS_DECL_ISUPPORTS
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// we want to make sure that the names of file can't reach
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// outside of the type of storage the user asked for.
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bool IsSafePath();
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nsresult Remove();
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nsresult Write(nsIInputStream* aInputStream);
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nsresult Write(InfallibleTArray<uint8_t>& bits);
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void CollectFiles(nsTArray<nsRefPtr<DeviceStorageFile> > &aFiles, PRTime aSince = 0);
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void collectFilesInternal(nsTArray<nsRefPtr<DeviceStorageFile> > &aFiles, PRTime aSince, nsAString& aRootPath);
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static void DirectoryDiskUsage(nsIFile* aFile, uint64_t* aSoFar, const nsAString& aStorageType);
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private:
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void NormalizeFilePath();
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void AppendRelativePath();
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};
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/*
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The FileUpdateDispatcher converts file-watcher-notify
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observer events to file-watcher-update events. This is
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used to be able to broadcast events from one child to
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another child in B2G. (f.e., if one child decides to add
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a file, we want to be able to able to send a onchange
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notifications to every other child watching that device
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storage object).
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We create this object (via GetSingleton) in two places:
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* ContentParent::Init (for IPC)
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* nsDOMDeviceStorage::Init (for non-ipc)
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*/
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class FileUpdateDispatcher MOZ_FINAL
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: public nsIObserver
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{
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSIOBSERVER
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static FileUpdateDispatcher* GetSingleton();
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private:
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static mozilla::StaticRefPtr<FileUpdateDispatcher> sSingleton;
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};
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class nsDOMDeviceStorage MOZ_FINAL
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: public nsDOMEventTargetHelper
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, public nsIDOMDeviceStorage
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, public nsIObserver
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_NSIDOMDEVICESTORAGE
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NS_DECL_NSIOBSERVER
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NS_DECL_NSIDOMEVENTTARGET
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nsDOMDeviceStorage();
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nsresult Init(nsPIDOMWindow* aWindow, const nsAString &aType, const nsAString &aVolName);
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void SetRootDirectoryForType(const nsAString& aType, const nsAString &aVolName);
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static void GetOrderedVolumeNames(const nsAString &aType,
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nsTArray<nsString> &aVolumeNames);
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static void CreateDeviceStoragesFor(nsPIDOMWindow* aWin,
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const nsAString &aType,
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nsTArray<nsRefPtr<nsDOMDeviceStorage> > &aStores);
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void Shutdown();
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private:
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~nsDOMDeviceStorage();
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nsresult GetInternal(const JS::Value & aName,
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JSContext* aCx,
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nsIDOMDOMRequest** aRetval,
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bool aEditable);
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nsresult EnumerateInternal(const JS::Value & aName,
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const JS::Value & aOptions,
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JSContext* aCx,
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uint8_t aArgc,
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bool aEditable,
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nsIDOMDOMCursor** aRetval);
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nsString mStorageType;
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nsCOMPtr<nsIFile> mRootDirectory;
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nsString mVolumeName;
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nsCOMPtr<nsIPrincipal> mPrincipal;
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bool mIsWatchingFile;
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bool mAllowedToWatchFile;
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nsresult Notify(const char* aReason, class DeviceStorageFile* aFile);
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friend class WatchFileEvent;
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friend class DeviceStorageRequest;
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#ifdef MOZ_WIDGET_GONK
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void DispatchMountChangeEvent(nsAString& aType);
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#endif
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// nsIDOMDeviceStorage.type
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enum {
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DEVICE_STORAGE_TYPE_DEFAULT = 0,
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DEVICE_STORAGE_TYPE_SHARED,
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DEVICE_STORAGE_TYPE_EXTERNAL
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};
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};
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#endif
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