widget/windows/nsFilePicker.h
author Marian-Vasile Laza <mlaza@mozilla.com>
Tue, 30 Nov 2021 23:30:59 +0200
changeset 600683 15c1262d6e8f4524fa63dcc9cc2572038ffb3a92
parent 557426 2d09267457f7c39d8c8beed5a6fb28fe7699ea2e
permissions -rw-r--r--
Backed out 6 changesets (bug 1715892, bug 1719735) for causing bc test failures. CLOSED TREE Backed out changeset 196952bd8c9c (bug 1715892) Backed out changeset 9105fe01c025 (bug 1715892) Backed out changeset 4c15d1a24ccd (bug 1715892) Backed out changeset 2c328b84285f (bug 1715892) Backed out changeset 8fcdcdf44b62 (bug 1719735) Backed out changeset c48f398e301f (bug 1719735)

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsFilePicker_h__
#define nsFilePicker_h__

#include <windows.h>

#include "nsIFile.h"
#include "nsISimpleEnumerator.h"
#include "nsCOMArray.h"
#include "nsBaseFilePicker.h"
#include "nsString.h"
#include "nsdefs.h"
#include <commdlg.h>
#include <shobjidl.h>
#undef LogSeverity  // SetupAPI.h #defines this as DWORD

class nsILoadContext;

class nsBaseWinFilePicker : public nsBaseFilePicker {
 public:
  NS_IMETHOD GetDefaultString(nsAString& aDefaultString) override;
  NS_IMETHOD SetDefaultString(const nsAString& aDefaultString) override;
  NS_IMETHOD GetDefaultExtension(nsAString& aDefaultExtension) override;
  NS_IMETHOD SetDefaultExtension(const nsAString& aDefaultExtension) override;

 protected:
  nsString mDefaultFilePath;
  nsString mDefaultFilename;
  nsString mDefaultExtension;
};

/**
 * Native Windows FileSelector wrapper
 */

class nsFilePicker : public nsBaseWinFilePicker {
  virtual ~nsFilePicker() = default;

 public:
  nsFilePicker();

  NS_IMETHOD Init(mozIDOMWindowProxy* aParent, const nsAString& aTitle,
                  int16_t aMode) override;

  NS_DECL_ISUPPORTS

  // nsIFilePicker (less what's in nsBaseFilePicker and nsBaseWinFilePicker)
  NS_IMETHOD GetFilterIndex(int32_t* aFilterIndex) override;
  NS_IMETHOD SetFilterIndex(int32_t aFilterIndex) override;
  NS_IMETHOD GetFile(nsIFile** aFile) override;
  NS_IMETHOD GetFileURL(nsIURI** aFileURL) override;
  NS_IMETHOD GetFiles(nsISimpleEnumerator** aFiles) override;
  NS_IMETHOD AppendFilter(const nsAString& aTitle,
                          const nsAString& aFilter) override;

 protected:
  /* method from nsBaseFilePicker */
  virtual void InitNative(nsIWidget* aParent, const nsAString& aTitle) override;
  nsresult Show(int16_t* aReturnVal) override;
  nsresult ShowW(int16_t* aReturnVal);
  void GetFilterListArray(nsString& aFilterList);
  bool ShowFolderPicker(const nsString& aInitialDir);
  bool ShowFilePicker(const nsString& aInitialDir);
  void RememberLastUsedDirectory();
  bool IsPrivacyModeEnabled();
  bool IsDefaultPathLink();
  bool IsDefaultPathHtml();

  nsCOMPtr<nsILoadContext> mLoadContext;
  nsCOMPtr<nsIWidget> mParentWidget;
  nsString mTitle;
  nsCString mFile;
  nsString mFilterList;
  int16_t mSelectedType;
  nsCOMArray<nsIFile> mFiles;
  nsString mUnicodeFile;

  struct FreeDeleter {
    void operator()(void* aPtr) { ::free(aPtr); }
  };
  static mozilla::UniquePtr<char16_t[], FreeDeleter> sLastUsedUnicodeDirectory;

  class ComDlgFilterSpec {
   public:
    ComDlgFilterSpec() {}
    ~ComDlgFilterSpec() {}

    const uint32_t Length() { return mSpecList.Length(); }

    const bool IsEmpty() { return (mSpecList.Length() == 0); }

    const COMDLG_FILTERSPEC* get() { return mSpecList.Elements(); }

    void Append(const nsAString& aTitle, const nsAString& aFilter);

   private:
    AutoTArray<COMDLG_FILTERSPEC, 1> mSpecList;
    AutoTArray<nsString, 2> mStrings;
  };

  ComDlgFilterSpec mComFilterList;
};

#endif  // nsFilePicker_h__