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Use Chrome file dialogs on all platforms and runtimes (fixes issue #3314)

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All file dialogs irrespective of source, platform and runtime will now be
routed through CefFileDialogManager and trigger CefDialogHandler callbacks
(see issue #3293).

Adds Chrome runtime support for CefBrowserHost::RunFileDialog and
CefDialogHandler callbacks.

Adds Alloy runtime support for internal GTK file and print dialogs on Linux
subject to the following limitations:

1. Internal GTK implementation:
   - Cannot be used with multi-threaded-message-loop because Chromium's
     internal GTK implementation is not thread-safe (does not use GDK threads).
   - Dialogs will not be modal to application windows when used with off-screen
     rendering due to lack of access to the client's top-level GtkWindow.
2. Cefclient CefDialogHandler implementation:
   - Cannot be used with Views because it requires a top-level GtkWindow.

Due to the above limitations no dialog implementation is currently provided for
Views + multi-threaded-message-loop on Linux. In cases where both
implementations are supported the cefclient version is now behind an optional
`--use-client-dialogs` command-line flag.

Expressly forbids multiple simultaneous file dialogs with the internal platform
implementation which uses modal dialogs. CefDialogHandler will still be notified
and can optionally handle each request without a modal dialog (see issue #3154).

Removes some RunFileDialog parameters that are not supported by the Chrome file
dialog implementation (selected_accept_filter parameter, cef_file_dialog_mode_t
overwrite/read-only flags).
This commit is contained in:
Marshall Greenblatt
2022-04-15 15:55:23 -04:00
parent edef01f579
commit 2ea7459a89
75 changed files with 1566 additions and 2231 deletions
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45
libcef/browser/file_dialog_runner.h
View File

@ -1,4 +1,4 @@
// Copyright (c) 2012 The Chromium Embedded Framework Authors.
// Copyright (c) 2022 The Chromium Embedded Framework Authors.
// Portions copyright (c) 2012 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.
@ -7,46 +7,11 @@
#define CEF_LIBCEF_BROWSER_FILE_DIALOG_RUNNER_H_
#pragma once
#include <vector>
namespace file_dialog_runner {
#include "base/callback.h"
#include "base/files/file_path.h"
#include "third_party/blink/public/mojom/choosers/file_chooser.mojom.h"
// One-time registration on startup.
void RegisterFactory();
class AlloyBrowserHostImpl;
class CefFileDialogRunner {
public:
CefFileDialogRunner(const CefFileDialogRunner&) = delete;
CefFileDialogRunner& operator=(const CefFileDialogRunner&) = delete;
// Extend blink::mojom::FileChooserParams with some options unique to CEF.
struct FileChooserParams : public blink::mojom::FileChooserParams {
// 0-based index of the selected value in |accept_types|.
int selected_accept_filter = 0;
// True if the Save dialog should prompt before overwriting files.
bool overwriteprompt = true;
// True if read-only files should be hidden.
bool hidereadonly = true;
};
// The argument vector will be empty if the dialog was canceled.
using RunFileChooserCallback =
base::OnceCallback<void(int, const std::vector<base::FilePath>&)>;
// Display the file chooser dialog. Execute |callback| on completion.
virtual void Run(AlloyBrowserHostImpl* browser,
const FileChooserParams& params,
RunFileChooserCallback callback) = 0;
protected:
// Allow deletion via std::unique_ptr only.
friend std::default_delete<CefFileDialogRunner>;
CefFileDialogRunner() = default;
virtual ~CefFileDialogRunner() = default;
};
} // namespace file_dialog_runner
#endif // CEF_LIBCEF_BROWSER_FILE_DIALOG_RUNNER_H_