forked from mirrors/gecko-dev
d8e22b7cd0
Pull the async-to-sync transition down one (or two) class-layers, while pulling the sync-to-async transition up one more function layer. This allows them to meet in a single function -- where they cleanly annihilate. This is a _significant_ functional change, as it leaves the file-dialog implementation fully asynchronous on Windows! \o/ Differential Revision: https://phabricator.services.mozilla.com/D193740
131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsFilePicker_h__
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#define nsFilePicker_h__
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#include <windows.h>
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#include "mozilla/MozPromise.h"
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#include "nsIFile.h"
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#include "nsISimpleEnumerator.h"
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#include "nsCOMArray.h"
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#include "nsBaseFilePicker.h"
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#include "nsString.h"
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#include "nsdefs.h"
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#include <commdlg.h>
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#include <shobjidl.h>
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#undef LogSeverity // SetupAPI.h #defines this as DWORD
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class nsILoadContext;
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namespace mozilla::widget::filedialog {
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class Command;
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class Results;
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enum class FileDialogType : uint8_t;
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} // namespace mozilla::widget::filedialog
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class nsBaseWinFilePicker : public nsBaseFilePicker {
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public:
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NS_IMETHOD GetDefaultString(nsAString& aDefaultString) override;
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NS_IMETHOD SetDefaultString(const nsAString& aDefaultString) override;
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NS_IMETHOD GetDefaultExtension(nsAString& aDefaultExtension) override;
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NS_IMETHOD SetDefaultExtension(const nsAString& aDefaultExtension) override;
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protected:
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nsString mDefaultFilePath;
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nsString mDefaultFilename;
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nsString mDefaultExtension;
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};
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/**
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* Native Windows FileSelector wrapper
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*/
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class nsFilePicker final : public nsBaseWinFilePicker {
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virtual ~nsFilePicker() = default;
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template <typename T>
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using Maybe = mozilla::Maybe<T>;
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template <typename T>
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using Result = mozilla::Result<T, HRESULT>;
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template <typename Res>
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using FPPromise = RefPtr<mozilla::MozPromise<Maybe<Res>, HRESULT, true>>;
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using Command = mozilla::widget::filedialog::Command;
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using Results = mozilla::widget::filedialog::Results;
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using FileDialogType = mozilla::widget::filedialog::FileDialogType;
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public:
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nsFilePicker();
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NS_IMETHOD Init(mozIDOMWindowProxy* aParent, const nsAString& aTitle,
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nsIFilePicker::Mode aMode) override;
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NS_DECL_ISUPPORTS
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// nsIFilePicker (less what's in nsBaseFilePicker and nsBaseWinFilePicker)
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NS_IMETHOD GetFilterIndex(int32_t* aFilterIndex) override;
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NS_IMETHOD SetFilterIndex(int32_t aFilterIndex) override;
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NS_IMETHOD GetFile(nsIFile** aFile) override;
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NS_IMETHOD GetFileURL(nsIURI** aFileURL) override;
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NS_IMETHOD GetFiles(nsISimpleEnumerator** aFiles) override;
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NS_IMETHOD AppendFilter(const nsAString& aTitle,
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const nsAString& aFilter) override;
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protected:
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/* method from nsBaseFilePicker */
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virtual void InitNative(nsIWidget* aParent, const nsAString& aTitle) override;
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nsresult Show(nsIFilePicker::ResultCode* aReturnVal) override;
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void GetFilterListArray(nsString& aFilterList);
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NS_IMETHOD Open(nsIFilePickerShownCallback* aCallback) override;
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private:
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RefPtr<mozilla::MozPromise<bool, HRESULT, true>> ShowFolderPicker(
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const nsString& aInitialDir);
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RefPtr<mozilla::MozPromise<bool, HRESULT, true>> ShowFilePicker(
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const nsString& aInitialDir);
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// Show the dialog out-of-process.
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static FPPromise<Results> ShowFilePickerRemote(
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HWND aParent, FileDialogType type, nsTArray<Command> const& commands);
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static FPPromise<nsString> ShowFolderPickerRemote(
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HWND aParent, nsTArray<Command> const& commands);
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// Show the dialog in-process.
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static FPPromise<Results> ShowFilePickerLocal(
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HWND aParent, FileDialogType type, nsTArray<Command> const& commands);
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static FPPromise<nsString> ShowFolderPickerLocal(
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HWND aParent, nsTArray<Command> const& commands);
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protected:
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void RememberLastUsedDirectory();
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bool IsPrivacyModeEnabled();
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bool IsDefaultPathLink();
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bool IsDefaultPathHtml();
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nsCOMPtr<nsILoadContext> mLoadContext;
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nsCOMPtr<nsIWidget> mParentWidget;
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nsString mTitle;
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nsCString mFile;
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int32_t mSelectedType;
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nsCOMArray<nsIFile> mFiles;
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nsString mUnicodeFile;
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struct FreeDeleter {
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void operator()(void* aPtr) { ::free(aPtr); }
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};
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static mozilla::UniquePtr<char16_t[], FreeDeleter> sLastUsedUnicodeDirectory;
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struct Filter {
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nsString title;
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nsString filter;
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};
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AutoTArray<Filter, 1> mFilterList;
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};
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#endif // nsFilePicker_h__
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