dom/ipc/FilePickerParent.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_FilePickerParent_h
   8 #define mozilla_dom_FilePickerParent_h
   9
  10 #include "nsIEventTarget.h"
  11 #include "nsIFilePicker.h"
  12 #include "nsCOMArray.h"
  13 #include "nsThreadUtils.h"
  14 #include "mozilla/dom/File.h"
  15 #include "mozilla/dom/PFilePickerParent.h"
  16
  17 class nsIFile;
  18
  19 namespace mozilla::dom {
  20
  21 class FilePickerParent : public PFilePickerParent {
  22  public:
  23   FilePickerParent(const nsString& aTitle, const nsIFilePicker::Mode& aMode)
  24       : mTitle(aTitle), mMode(aMode), mResult(nsIFilePicker::returnOK) {}
  25
  26  private:
  27   virtual ~FilePickerParent();
  28
  29  public:
  30   NS_INLINE_DECL_REFCOUNTING(FilePickerParent, final)
  31
  32   void Done(nsIFilePicker::ResultCode aResult);
  33
  34   struct BlobImplOrString {
  35     RefPtr<BlobImpl> mBlobImpl;
  36     nsString mDirectoryPath;
  37
  38     enum { eBlobImpl, eDirectoryPath } mType;
  39   };
  40
  41   void SendFilesOrDirectories(const nsTArray<BlobImplOrString>& aData);
  42
  43   mozilla::ipc::IPCResult RecvOpen(
  44       const int16_t& aSelectedType, const bool& aAddToRecentDocs,
  45       const nsString& aDefaultFile, const nsString& aDefaultExtension,
  46       nsTArray<nsString>&& aFilters, nsTArray<nsString>&& aFilterNames,
  47       nsTArray<nsString>&& aRawFilters, const nsString& aDisplayDirectory,
  48       const nsString& aDisplaySpecialDirectory, const nsString& aOkButtonLabel,
  49       const nsIFilePicker::CaptureTarget& aCapture);
  50
  51   mozilla::ipc::IPCResult RecvClose();
  52
  53   virtual void ActorDestroy(ActorDestroyReason aWhy) override;
  54
  55   class FilePickerShownCallback : public nsIFilePickerShownCallback {
  56    public:
  57     explicit FilePickerShownCallback(FilePickerParent* aFilePickerParent)
  58         : mFilePickerParent(aFilePickerParent) {}
  59
  60     NS_DECL_ISUPPORTS
  61     NS_DECL_NSIFILEPICKERSHOWNCALLBACK
  62
  63     void Destroy();
  64
  65    private:
  66     virtual ~FilePickerShownCallback() = default;
  67     RefPtr<FilePickerParent> mFilePickerParent;
  68   };
  69
  70  private:
  71   bool CreateFilePicker();
  72
  73   // This runnable is used to do some I/O operation on a separate thread.
  74   class IORunnable : public Runnable {
  75     RefPtr<FilePickerParent> mFilePickerParent;
  76     nsTArray<nsCOMPtr<nsIFile>> mFiles;
  77     nsTArray<BlobImplOrString> mResults;
  78     nsCOMPtr<nsIEventTarget> mEventTarget;
  79     bool mIsDirectory;
  80
  81    public:
  82     IORunnable(FilePickerParent* aFPParent,
  83                nsTArray<nsCOMPtr<nsIFile>>&& aFiles, bool aIsDirectory);
  84
  85     bool Dispatch();
  86     NS_IMETHOD Run() override;
  87     void Destroy();
  88   };
  89
  90   RefPtr<IORunnable> mRunnable;
  91   RefPtr<FilePickerShownCallback> mCallback;
  92   nsCOMPtr<nsIFilePicker> mFilePicker;
  93
  94   nsString mTitle;
  95   nsIFilePicker::Mode mMode;
  96   nsIFilePicker::ResultCode mResult;
  97 };
  98
  99 }  // namespace mozilla::dom
 100
 101 #endif  // mozilla_dom_FilePickerParent_h