Proxy the PDF API to the PDF plugin.

This makes the Rotate Clockwise / Counterclockwise context menu items work.

Review URL: https://codereview.chromium.org/142413006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@249366 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 77 insertions, 0 deletions

diff --git a/ppapi/proxy/ppp_pdf_proxy.cc b/ppapi/proxy/ppp_pdf_proxy.cc
new file mode 100644
index 0000000..356b42f
--- /dev/null
+++ b/ppapi/proxy/ppp_pdf_proxy.cc
@@ -0,0 +1,77 @@
+// Copyright 2014 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.
+
+#include "ppapi/proxy/ppp_pdf_proxy.h"
+
+#include "ppapi/proxy/host_dispatcher.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/shared_impl/proxy_lock.h"
+
+namespace ppapi {
+namespace proxy {
+
+namespace {
+
+#if !defined(OS_NACL)
+PP_Var GetLinkAtPosition(PP_Instance instance, PP_Point point) {
+  // This isn't implemented in the out of process case.
+  return PP_MakeUndefined();
+}
+
+void Transform(PP_Instance instance, PP_PrivatePageTransformType type) {
+  bool clockwise = type == PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CW;
+  HostDispatcher::GetForInstance(instance)->Send(
+      new PpapiMsg_PPPPdf_Rotate(API_ID_PPP_PDF, instance, clockwise));
+}
+
+const PPP_Pdf ppp_pdf_interface = {
+  &GetLinkAtPosition,
+  &Transform,
+};
+#else
+// The NaCl plugin doesn't need the host side interface - stub it out.
+const PPP_Pdf ppp_pdf_interface = {};
+#endif
+
+}  // namespace
+
+PPP_Pdf_Proxy::PPP_Pdf_Proxy(Dispatcher* dispatcher)
+    : InterfaceProxy(dispatcher),
+      ppp_pdf_(NULL) {
+  if (dispatcher->IsPlugin()) {
+    ppp_pdf_ = static_cast<const PPP_Pdf*>(
+        dispatcher->local_get_interface()(PPP_PDF_INTERFACE));
+  }
+}
+
+PPP_Pdf_Proxy::~PPP_Pdf_Proxy() {
+}
+
+// static
+const PPP_Pdf* PPP_Pdf_Proxy::GetProxyInterface() {
+  return &ppp_pdf_interface;
+}
+
+bool PPP_Pdf_Proxy::OnMessageReceived(const IPC::Message& msg) {
+  if (!dispatcher()->IsPlugin())
+    return false;
+
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(PPP_Pdf_Proxy, msg)
+    IPC_MESSAGE_HANDLER(PpapiMsg_PPPPdf_Rotate, OnPluginMsgRotate)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void PPP_Pdf_Proxy::OnPluginMsgRotate(PP_Instance instance, bool clockwise) {
+  PP_PrivatePageTransformType type = clockwise ?
+      PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CW :
+      PP_PRIVATEPAGETRANSFORMTYPE_ROTATE_90_CCW;
+  if (ppp_pdf_)
+    CallWhileUnlocked(ppp_pdf_->Transform, instance, type);
+}
+
+}  // namespace proxy
+}  // namespace ppapi