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https://bitbucket.org/chromiumembedded/cef
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2ea7459a89
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).
104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
// Copyright (c) 2014 The Chromium Embedded Framework Authors.
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// Portions copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef LIBCEF_BROWSER_PRINTING_PRINT_DIALOG_LINUX_H_
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#define LIBCEF_BROWSER_PRINTING_PRINT_DIALOG_LINUX_H_
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#include "include/cef_print_handler.h"
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#include "libcef/browser/browser_host_base.h"
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#include "base/files/file_path.h"
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#include "base/memory/ref_counted.h"
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#include "base/task/sequenced_task_runner_helpers.h"
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#include "content/public/browser/browser_thread.h"
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#include "printing/print_dialog_gtk_interface.h"
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#include "printing/printing_context_linux.h"
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namespace printing {
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class MetafilePlayer;
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class PrintSettings;
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} // namespace printing
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using printing::PrintingContextLinux;
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// Needs to be freed on the UI thread to clean up its member variables.
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class CefPrintDialogLinux : public printing::PrintDialogGtkInterface,
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public base::RefCountedThreadSafe<
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CefPrintDialogLinux,
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content::BrowserThread::DeleteOnUIThread> {
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public:
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CefPrintDialogLinux(const CefPrintDialogLinux&) = delete;
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CefPrintDialogLinux& operator=(const CefPrintDialogLinux&) = delete;
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// Creates and returns a print dialog.
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static printing::PrintDialogGtkInterface* CreatePrintDialog(
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PrintingContextLinux* context);
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// Returns the paper size in device units.
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static gfx::Size GetPdfPaperSize(printing::PrintingContextLinux* context);
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// Used for calling into the default GTK implementation.
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static void SetDefaultPrintingContextFuncs(
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printing::PrintingContextLinux::CreatePrintDialogFunctionPtr
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create_print_dialog_func,
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printing::PrintingContextLinux::PdfPaperSizeFunctionPtr
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pdf_paper_size_func);
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// Notify the client when printing has started.
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static void OnPrintStart(CefRefPtr<CefBrowserHostBase> browser);
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// PrintDialogGtkInterface implementation.
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void UseDefaultSettings() override;
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void UpdateSettings(
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std::unique_ptr<printing::PrintSettings> settings) override;
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void ShowDialog(
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gfx::NativeView parent_view,
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bool has_selection,
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PrintingContextLinux::PrintSettingsCallback callback) override;
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void PrintDocument(const printing::MetafilePlayer& metafile,
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const std::u16string& document_name) override;
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void AddRefToDialog() override;
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void ReleaseDialog() override;
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private:
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friend class base::DeleteHelper<CefPrintDialogLinux>;
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friend class base::RefCountedThreadSafe<
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CefPrintDialogLinux,
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content::BrowserThread::DeleteOnUIThread>;
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friend struct content::BrowserThread::DeleteOnThread<
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content::BrowserThread::UI>;
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friend class CefPrintDialogCallbackImpl;
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friend class CefPrintJobCallbackImpl;
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CefPrintDialogLinux(PrintingContextLinux* context,
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CefRefPtr<CefBrowserHostBase> browser,
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CefRefPtr<CefPrintHandler> handler);
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~CefPrintDialogLinux() override;
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bool UpdateSettings(std::unique_ptr<printing::PrintSettings> settings,
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bool get_defaults);
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// Prints document named |document_name|.
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void SendDocumentToPrinter(const std::u16string& document_name);
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// Handles print dialog response.
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void OnPrintContinue(CefRefPtr<CefPrintSettings> settings);
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void OnPrintCancel();
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// Handles print job response.
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void OnJobCompleted();
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// Printing dialog callback.
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PrintingContextLinux::PrintSettingsCallback callback_;
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PrintingContextLinux* context_;
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CefRefPtr<CefBrowserHostBase> browser_;
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CefRefPtr<CefPrintHandler> handler_;
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base::FilePath path_to_pdf_;
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};
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#endif // LIBCEF_BROWSER_PRINTING_PRINT_DIALOG_LINUX_H_
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