Add PDF printing support (issue #1478).

libcef_dll/cpptoc/browser_host_cpptoc.cc

@@ -16,6 +16,7 @@
 #include "libcef_dll/cpptoc/request_context_cpptoc.h"
 #include "libcef_dll/ctocpp/client_ctocpp.h"
 #include "libcef_dll/ctocpp/navigation_entry_visitor_ctocpp.h"
+#include "libcef_dll/ctocpp/pdf_print_callback_ctocpp.h"
 #include "libcef_dll/ctocpp/run_file_dialog_callback_ctocpp.h"
 #include "libcef_dll/transfer_util.h"
 
@@ -307,6 +308,36 @@ void CEF_CALLBACK browser_host_print(struct _cef_browser_host_t* self) {
   CefBrowserHostCppToC::Get(self)->Print();
 }
 
+void CEF_CALLBACK browser_host_print_to_pdf(struct _cef_browser_host_t* self,
+    const cef_string_t* path, const struct _cef_pdf_print_settings_t* settings,
+    cef_pdf_print_callback_t* callback) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+  // Verify param: path; type: string_byref_const
+  DCHECK(path);
+  if (!path)
+    return;
+  // Verify param: settings; type: struct_byref_const
+  DCHECK(settings);
+  if (!settings)
+    return;
+  // Unverified params: callback
+
+  // Translate param: settings; type: struct_byref_const
+  CefPdfPrintSettings settingsObj;
+  if (settings)
+    settingsObj.Set(*settings, false);
+
+  // Execute
+  CefBrowserHostCppToC::Get(self)->PrintToPDF(
+      CefString(path),
+      settingsObj,
+      CefPdfPrintCallbackCToCpp::Wrap(callback));
+}
+
 void CEF_CALLBACK browser_host_find(struct _cef_browser_host_t* self,
     int identifier, const cef_string_t* searchText, int forward, int matchCase,
     int findNext) {
@@ -881,6 +912,7 @@ CefBrowserHostCppToC::CefBrowserHostCppToC() {
   GetStruct()->run_file_dialog = browser_host_run_file_dialog;
   GetStruct()->start_download = browser_host_start_download;
   GetStruct()->print = browser_host_print;
+  GetStruct()->print_to_pdf = browser_host_print_to_pdf;
   GetStruct()->find = browser_host_find;
   GetStruct()->stop_finding = browser_host_stop_finding;
   GetStruct()->show_dev_tools = browser_host_show_dev_tools;

libcef_dll/cpptoc/pdf_print_callback_cpptoc.cc

@@ -0,0 +1,61 @@
+// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+
+#include "libcef_dll/cpptoc/pdf_print_callback_cpptoc.h"
+
+
+namespace {
+
+// MEMBER FUNCTIONS - Body may be edited by hand.
+
+void CEF_CALLBACK pdf_print_callback_on_pdf_print_finished(
+    struct _cef_pdf_print_callback_t* self, const cef_string_t* path, int ok) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return;
+  // Verify param: path; type: string_byref_const
+  DCHECK(path);
+  if (!path)
+    return;
+
+  // Execute
+  CefPdfPrintCallbackCppToC::Get(self)->OnPdfPrintFinished(
+      CefString(path),
+      ok?true:false);
+}
+
+}  // namespace
+
+
+// CONSTRUCTOR - Do not edit by hand.
+
+CefPdfPrintCallbackCppToC::CefPdfPrintCallbackCppToC() {
+  GetStruct()->on_pdf_print_finished = pdf_print_callback_on_pdf_print_finished;
+}
+
+template<> CefRefPtr<CefPdfPrintCallback> CefCppToC<CefPdfPrintCallbackCppToC,
+    CefPdfPrintCallback, cef_pdf_print_callback_t>::UnwrapDerived(
+    CefWrapperType type, cef_pdf_print_callback_t* s) {
+  NOTREACHED() << "Unexpected class type: " << type;
+  return NULL;
+}
+
+#ifndef NDEBUG
+template<> base::AtomicRefCount CefCppToC<CefPdfPrintCallbackCppToC,
+    CefPdfPrintCallback, cef_pdf_print_callback_t>::DebugObjCt = 0;
+#endif
+
+template<> CefWrapperType CefCppToC<CefPdfPrintCallbackCppToC,
+    CefPdfPrintCallback, cef_pdf_print_callback_t>::kWrapperType =
+    WT_PDF_PRINT_CALLBACK;

libcef_dll/cpptoc/pdf_print_callback_cpptoc.h

@@ -0,0 +1,37 @@
+// Copyright (c) 2015 The Chromium Embedded Framework Authors. All rights
+// reserved. Use of this source code is governed by a BSD-style license that
+// can be found in the LICENSE file.
+//
+// ---------------------------------------------------------------------------
+//
+// This file was generated by the CEF translator tool. If making changes by
+// hand only do so within the body of existing method and function
+// implementations. See the translator.README.txt file in the tools directory
+// for more information.
+//
+
+#ifndef CEF_LIBCEF_DLL_CPPTOC_PDF_PRINT_CALLBACK_CPPTOC_H_
+#define CEF_LIBCEF_DLL_CPPTOC_PDF_PRINT_CALLBACK_CPPTOC_H_
+#pragma once
+
+#ifndef USING_CEF_SHARED
+#pragma message("Warning: "__FILE__" may be accessed wrapper-side only")
+#else  // USING_CEF_SHARED
+
+#include "include/cef_browser.h"
+#include "include/capi/cef_browser_capi.h"
+#include "include/cef_client.h"
+#include "include/capi/cef_client_capi.h"
+#include "libcef_dll/cpptoc/cpptoc.h"
+
+// Wrap a C++ class with a C structure.
+// This class may be instantiated and accessed wrapper-side only.
+class CefPdfPrintCallbackCppToC
+    : public CefCppToC<CefPdfPrintCallbackCppToC, CefPdfPrintCallback,
+        cef_pdf_print_callback_t> {
+ public:
+  CefPdfPrintCallbackCppToC();
+};
+
+#endif  // USING_CEF_SHARED
+#endif  // CEF_LIBCEF_DLL_CPPTOC_PDF_PRINT_CALLBACK_CPPTOC_H_

libcef_dll/cpptoc/print_handler_cpptoc.cc

@@ -104,6 +104,22 @@ void CEF_CALLBACK print_handler_on_print_reset(
   CefPrintHandlerCppToC::Get(self)->OnPrintReset();
 }
 
+cef_size_t CEF_CALLBACK print_handler_get_pdf_paper_size(
+    struct _cef_print_handler_t* self, int device_units_per_inch) {
+  // AUTO-GENERATED CONTENT - DELETE THIS COMMENT BEFORE MODIFYING
+
+  DCHECK(self);
+  if (!self)
+    return CefSize();
+
+  // Execute
+  cef_size_t _retval = CefPrintHandlerCppToC::Get(self)->GetPdfPaperSize(
+      device_units_per_inch);
+
+  // Return type: simple
+  return _retval;
+}
+
 }  // namespace
 
 
@@ -114,6 +130,7 @@ CefPrintHandlerCppToC::CefPrintHandlerCppToC() {
   GetStruct()->on_print_dialog = print_handler_on_print_dialog;
   GetStruct()->on_print_job = print_handler_on_print_job;
   GetStruct()->on_print_reset = print_handler_on_print_reset;
+  GetStruct()->get_pdf_paper_size = print_handler_get_pdf_paper_size;
 }
 
 template<> CefRefPtr<CefPrintHandler> CefCppToC<CefPrintHandlerCppToC,