cef/libcef/browser/printing/print_dialog_linux.h

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3.3 KiB
C++

// Copyright (c) 2014 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.
#ifndef LIBCEF_BROWSER_PRINTING_PRINT_DIALOG_LINUX_H_
#define LIBCEF_BROWSER_PRINTING_PRINT_DIALOG_LINUX_H_
#include "include/cef_print_handler.h"
#include "libcef/browser/browser_host_base.h"
#include "base/compiler_specific.h"
#include "base/files/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/task/sequenced_task_runner_helpers.h"
#include "content/public/browser/browser_thread.h"
#include "printing/print_dialog_gtk_interface.h"
#include "printing/printing_context_linux.h"
namespace printing {
class MetafilePlayer;
class PrintSettings;
} // namespace printing
using printing::PrintingContextLinux;
// Needs to be freed on the UI thread to clean up its member variables.
class CefPrintDialogLinux : public printing::PrintDialogGtkInterface,
public base::RefCountedThreadSafe<
CefPrintDialogLinux,
content::BrowserThread::DeleteOnUIThread> {
public:
// Creates and returns a print dialog.
static printing::PrintDialogGtkInterface* CreatePrintDialog(
PrintingContextLinux* context);
// Returns the paper size in device units.
static gfx::Size GetPdfPaperSize(printing::PrintingContextLinux* context);
// Notify the client when printing has started.
static void OnPrintStart(CefRefPtr<CefBrowserHostBase> browser);
// PrintDialogGtkInterface implementation.
void UseDefaultSettings() override;
void UpdateSettings(
std::unique_ptr<printing::PrintSettings> settings) override;
void ShowDialog(
gfx::NativeView parent_view,
bool has_selection,
PrintingContextLinux::PrintSettingsCallback callback) override;
void PrintDocument(const printing::MetafilePlayer& metafile,
const std::u16string& document_name) override;
void AddRefToDialog() override;
void ReleaseDialog() override;
private:
friend class base::DeleteHelper<CefPrintDialogLinux>;
friend class base::RefCountedThreadSafe<
CefPrintDialogLinux,
content::BrowserThread::DeleteOnUIThread>;
friend struct content::BrowserThread::DeleteOnThread<
content::BrowserThread::UI>;
friend class CefPrintDialogCallbackImpl;
friend class CefPrintJobCallbackImpl;
explicit CefPrintDialogLinux(PrintingContextLinux* context);
~CefPrintDialogLinux() override;
void SetHandler();
void ReleaseHandler();
bool UpdateSettings(std::unique_ptr<printing::PrintSettings> settings,
bool get_defaults);
// Prints document named |document_name|.
void SendDocumentToPrinter(const std::u16string& document_name);
// Handles print dialog response.
void OnPrintContinue(CefRefPtr<CefPrintSettings> settings);
void OnPrintCancel();
// Handles print job response.
void OnJobCompleted();
CefRefPtr<CefPrintHandler> handler_;
// Printing dialog callback.
PrintingContextLinux::PrintSettingsCallback callback_;
PrintingContextLinux* context_;
CefRefPtr<CefBrowserHostBase> browser_;
base::FilePath path_to_pdf_;
DISALLOW_COPY_AND_ASSIGN(CefPrintDialogLinux);
};
#endif // LIBCEF_BROWSER_PRINTING_PRINT_DIALOG_LINUX_H_