| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef WEBLAYER_BROWSER_FILE_SELECT_HELPER_H_ |
| #define WEBLAYER_BROWSER_FILE_SELECT_HELPER_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "content/public/browser/browser_thread.h" |
| #include "content/public/browser/file_select_listener.h" |
| #include "content/public/browser/web_contents_observer.h" |
| #include "ui/shell_dialogs/select_file_dialog.h" |
| |
| namespace content { |
| class FileSelectListener; |
| } // namespace content |
| |
| namespace ui { |
| struct SelectedFileInfo; |
| } |
| |
| namespace weblayer { |
| |
| // This class handles file-selection requests coming from renderer processes. |
| // It implements both the initialisation and listener functions for |
| // file-selection dialogs. |
| // |
| // Since FileSelectHelper listens to observations of a widget, it needs to live |
| // on and be destroyed on the UI thread. References to FileSelectHelper may be |
| // passed on to other threads. |
| class FileSelectHelper : public base::RefCountedThreadSafe< |
| FileSelectHelper, |
| content::BrowserThread::DeleteOnUIThread>, |
| public ui::SelectFileDialog::Listener, |
| public content::WebContentsObserver { |
| public: |
| // Show the file chooser dialog. |
| static void RunFileChooser( |
| content::RenderFrameHost* render_frame_host, |
| std::unique_ptr<content::FileSelectListener> listener, |
| const blink::mojom::FileChooserParams& params); |
| |
| private: |
| friend class base::RefCountedThreadSafe<FileSelectHelper>; |
| friend class base::DeleteHelper<FileSelectHelper>; |
| friend struct content::BrowserThread::DeleteOnThread< |
| content::BrowserThread::UI>; |
| |
| FileSelectHelper(); |
| ~FileSelectHelper() override; |
| |
| void RunFileChooser(content::RenderFrameHost* render_frame_host, |
| std::unique_ptr<content::FileSelectListener> listener, |
| blink::mojom::FileChooserParamsPtr params); |
| |
| // Cleans up and releases this instance. This must be called after the last |
| // callback is received from the file chooser dialog. |
| void RunFileChooserEnd(); |
| |
| // SelectFileDialog::Listener overrides. |
| void FileSelected(const base::FilePath& path, |
| int index, |
| void* params) override; |
| void FileSelectedWithExtraInfo(const ui::SelectedFileInfo& file, |
| int index, |
| void* params) override; |
| void MultiFilesSelected(const std::vector<base::FilePath>& files, |
| void* params) override; |
| void MultiFilesSelectedWithExtraInfo( |
| const std::vector<ui::SelectedFileInfo>& files, |
| void* params) override; |
| void FileSelectionCanceled(void* params) override; |
| |
| // This method is called after the user has chosen the file(s) in the UI in |
| // order to process and filter the list before returning the final result to |
| // the caller. |
| void ConvertToFileChooserFileInfoList( |
| const std::vector<ui::SelectedFileInfo>& files); |
| |
| // Calls RunFileChooserEnd() if the webcontents was destroyed. Returns true |
| // if the file chooser operation shouldn't proceed. |
| bool AbortIfWebContentsDestroyed(); |
| |
| // |listener_| receives the result of the FileSelectHelper. |
| std::unique_ptr<content::FileSelectListener> listener_; |
| |
| // Dialog box used for choosing files to upload from file form fields. |
| scoped_refptr<ui::SelectFileDialog> select_file_dialog_; |
| |
| // The type of file dialog last shown. |
| ui::SelectFileDialog::Type dialog_type_ = |
| ui::SelectFileDialog::SELECT_OPEN_FILE; |
| |
| // The mode of file dialog last shown. |
| blink::mojom::FileChooserParams::Mode dialog_mode_ = |
| blink::mojom::FileChooserParams::Mode::kOpen; |
| |
| DISALLOW_COPY_AND_ASSIGN(FileSelectHelper); |
| }; |
| |
| } // namespace weblayer |
| |
| #endif // WEBLAYER_BROWSER_FILE_SELECT_HELPER_H_ |