Linux: Add new CefPrintHandler and CefPrintSettings classes to support printing and a GTK implementation in cefclient (issue #1258).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1762 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
2025-06-05 21:39:12 +02:00 · 2014-07-10 15:41:30 +00:00
parent 6f63f5d4f8
commit 8313963a27
47 changed files with 3803 additions and 3 deletions
--- a/libcef/browser/printing/print_dialog_linux.h
+++ b/libcef/browser/printing/print_dialog_linux.h
@@ -0,0 +1,85 @@
+// 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 "base/compiler_specific.h"
+#include "base/files/file_path.h"
+#include "base/memory/ref_counted.h"
+#include "base/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 Metafile;
+class PrintSettings;
+}
+
+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);
+
+  // printing::CefPrintDialogLinuxInterface implementation.
+  virtual void UseDefaultSettings() OVERRIDE;
+  virtual bool UpdateSettings(printing::PrintSettings* settings) OVERRIDE;
+  virtual void ShowDialog(
+      gfx::NativeView parent_view,
+      bool has_selection,
+      const PrintingContextLinux::PrintSettingsCallback& callback) OVERRIDE;
+  virtual void PrintDocument(const printing::Metafile* metafile,
+                             const base::string16& document_name) OVERRIDE;
+  virtual void AddRefToDialog() OVERRIDE;
+  virtual void ReleaseDialog() OVERRIDE;
+
+ private:
+  friend struct content::BrowserThread::DeleteOnThread<
+      content::BrowserThread::UI>;
+  friend class base::DeleteHelper<CefPrintDialogLinux>;
+  friend class CefPrintDialogCallbackImpl;
+  friend class CefPrintJobCallbackImpl;
+
+  explicit CefPrintDialogLinux(PrintingContextLinux* context);
+  virtual ~CefPrintDialogLinux();
+
+  void SetHandler();
+  void ReleaseHandler();
+
+  bool UpdateSettings(printing::PrintSettings* settings,
+                      bool get_defaults);
+
+  // Prints document named |document_name|.
+  void SendDocumentToPrinter(const base::string16& 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_;
+
+  base::FilePath path_to_pdf_;
+
+  DISALLOW_COPY_AND_ASSIGN(CefPrintDialogLinux);
+};
+
+#endif  // LIBCEF_BROWSER_PRINTING_PRINT_DIALOG_LINUX_H_