widget/windows/nsFilePicker.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
   2  *
   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 nsFilePicker_h__
   8 #define nsFilePicker_h__
   9
  10 #include <windows.h>
  11
  12 #include "nsIFile.h"
  13 #include "nsISimpleEnumerator.h"
  14 #include "nsCOMArray.h"
  15 #include "nsBaseFilePicker.h"
  16 #include "nsString.h"
  17 #include "nsdefs.h"
  18 #include <commdlg.h>
  19 #include <shobjidl.h>
  20 #undef LogSeverity  // SetupAPI.h #defines this as DWORD
  21
  22 class nsILoadContext;
  23
  24 class nsBaseWinFilePicker : public nsBaseFilePicker {
  25  public:
  26   NS_IMETHOD GetDefaultString(nsAString& aDefaultString) override;
  27   NS_IMETHOD SetDefaultString(const nsAString& aDefaultString) override;
  28   NS_IMETHOD GetDefaultExtension(nsAString& aDefaultExtension) override;
  29   NS_IMETHOD SetDefaultExtension(const nsAString& aDefaultExtension) override;
  30
  31  protected:
  32   nsString mDefaultFilePath;
  33   nsString mDefaultFilename;
  34   nsString mDefaultExtension;
  35 };
  36
  37 /**
  38  * Native Windows FileSelector wrapper
  39  */
  40
  41 class nsFilePicker : public nsBaseWinFilePicker {
  42   virtual ~nsFilePicker() = default;
  43
  44  public:
  45   nsFilePicker();
  46
  47   NS_IMETHOD Init(mozIDOMWindowProxy* aParent, const nsAString& aTitle,
  48                   nsIFilePicker::Mode aMode) override;
  49
  50   NS_DECL_ISUPPORTS
  51
  52   // nsIFilePicker (less what's in nsBaseFilePicker and nsBaseWinFilePicker)
  53   NS_IMETHOD GetFilterIndex(int32_t* aFilterIndex) override;
  54   NS_IMETHOD SetFilterIndex(int32_t aFilterIndex) override;
  55   NS_IMETHOD GetFile(nsIFile** aFile) override;
  56   NS_IMETHOD GetFileURL(nsIURI** aFileURL) override;
  57   NS_IMETHOD GetFiles(nsISimpleEnumerator** aFiles) override;
  58   NS_IMETHOD AppendFilter(const nsAString& aTitle,
  59                           const nsAString& aFilter) override;
  60
  61  protected:
  62   /* method from nsBaseFilePicker */
  63   virtual void InitNative(nsIWidget* aParent, const nsAString& aTitle) override;
  64   nsresult Show(nsIFilePicker::ResultCode* aReturnVal) override;
  65   nsresult ShowW(nsIFilePicker::ResultCode* aReturnVal);
  66   void GetFilterListArray(nsString& aFilterList);
  67   bool ShowFolderPicker(const nsString& aInitialDir);
  68   bool ShowFilePicker(const nsString& aInitialDir);
  69   void RememberLastUsedDirectory();
  70   bool IsPrivacyModeEnabled();
  71   bool IsDefaultPathLink();
  72   bool IsDefaultPathHtml();
  73
  74   nsCOMPtr<nsILoadContext> mLoadContext;
  75   nsCOMPtr<nsIWidget> mParentWidget;
  76   nsString mTitle;
  77   nsCString mFile;
  78   nsString mFilterList;
  79   int16_t mSelectedType;
  80   nsCOMArray<nsIFile> mFiles;
  81   nsString mUnicodeFile;
  82
  83   struct FreeDeleter {
  84     void operator()(void* aPtr) { ::free(aPtr); }
  85   };
  86   static mozilla::UniquePtr<char16_t[], FreeDeleter> sLastUsedUnicodeDirectory;
  87
  88   class ComDlgFilterSpec {
  89    public:
  90     ComDlgFilterSpec() {}
  91     ~ComDlgFilterSpec() {}
  92
  93     uint32_t Length() { return mSpecList.Length(); }
  94
  95     bool IsEmpty() { return (mSpecList.Length() == 0); }
  96
  97     const COMDLG_FILTERSPEC* get() { return mSpecList.Elements(); }
  98
  99     void Append(const nsAString& aTitle, const nsAString& aFilter);
 100
 101    private:
 102     AutoTArray<COMDLG_FILTERSPEC, 1> mSpecList;
 103     AutoTArray<nsString, 2> mStrings;
 104   };
 105
 106   ComDlgFilterSpec mComFilterList;
 107 };
 108
 109 #endif  // nsFilePicker_h__