text: /*
   * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1.  Redistributions of source code must retain the above copyright
   *     notice, this list of conditions and the following disclaimer.
   * 2.  Redistributions in binary form must reproduce the above copyright
   *     notice, this list of conditions and the following disclaimer in the
   *     documentation and/or other materials provided with the distribution.
   * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
   *     its contributors may be used to endorse or promote products derived
   *     from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
   * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   */
  
  #ifndef THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_FILE_CHOOSER_H_
  #define THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_FILE_CHOOSER_H_
  
  #include "mojo/public/cpp/bindings/remote.h"
  #include "third_party/blink/public/mojom/choosers/file_chooser.mojom-blink.h"
  #include "third_party/blink/renderer/core/page/popup_opening_observer.h"
  #include "third_party/blink/renderer/platform/heap/handle.h"
  #include "third_party/blink/renderer/platform/heap/persistent.h"
  #include "third_party/blink/renderer/platform/weborigin/kurl.h"
  #include "third_party/blink/renderer/platform/wtf/allocator/allocator.h"
  #include "third_party/blink/renderer/platform/wtf/ref_counted.h"
  #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
  #include "third_party/blink/renderer/platform/wtf/vector.h"
  
  namespace blink {
  
  class ChromeClientImpl;
  class FileChooser;
  class LocalFrame;
  
  using FileChooserFileInfoList = Vector<mojom::blink::FileChooserFileInfoPtr>;
  
  class CORE_EXPORT FileChooserClient : public PopupOpeningObserver {
   public:
    virtual void FilesChosen(FileChooserFileInfoList,
                             const base::FilePath& base_dir) = 0;
    virtual LocalFrame* FrameOrNull() const = 0;
    ~FileChooserClient() override;
  
    // Accessor for chooser_. This returns null before NewFileChooser() and after
    // DisconnectFileChooser().
    FileChooser* FileChooserOrNull() const { return chooser_.get(); }
  
    // This should be called if a user chose files or cancel the dialog.
    void DisconnectFileChooser();
  
    FileChooser* NewFileChooser(const mojom::blink::FileChooserParams&);
  
   protected:
    bool HasConnectedFileChooser() const { return chooser_.get(); }
  
   private:
    scoped_refptr<FileChooser> chooser_;
  };
  
  class FileChooser : public RefCounted<FileChooser> {
   public:
    CORE_EXPORT static scoped_refptr<FileChooser> Create(
        FileChooserClient*,
        const mojom::blink::FileChooserParams&);
    CORE_EXPORT ~FileChooser();
  
    LocalFrame* FrameOrNull() const {
      return client_ ? client_->FrameOrNull() : nullptr;
    }
    void DisconnectClient() { client_ = nullptr; }
  
    const mojom::blink::FileChooserParams& Params() const { return *params_; }
  
    bool OpenFileChooser(ChromeClientImpl& chrome_client_impl);
    void EnumerateChosenDirectory();
  
   private:
    FileChooser(FileChooserClient*, const mojom::blink::FileChooserParams&);
  
    void DidCloseChooser();
  
    // mojom::blink::FileChooser callback
    void DidChooseFiles(mojom::blink::FileChooserResultPtr result);
  
    Persistent<FileChooserClient> client_;
    mojom::blink::FileChooserParamsPtr params_;
    Persistent<ChromeClientImpl> chrome_client_impl_;
    mojo::Remote<mojom::blink::FileChooser> file_chooser_;
  };
  
  CORE_EXPORT mojom::blink::FileChooserFileInfoPtr
  CreateFileChooserFileInfoNative(const String& path,
                                  const String& display_name = String());
  CORE_EXPORT mojom::blink::FileChooserFileInfoPtr
  CreateFileChooserFileInfoFileSystem(const KURL& url,
                                      base::Time modification_time,
                                      int64_t length);
  
  }  // namespace blink
  
  #endif  // THIRD_PARTY_BLINK_RENDERER_CORE_HTML_FORMS_FILE_CHOOSER_H_
  