Implement the file chooser as a new resource "host"

content/renderer/pepper/pepper_file_chooser_host_browsertest.cc

+// 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.
+
+#include "base/file_path.h"
+#include "base/utf_string_conversions.h"
+#include "content/public/test/render_view_test.h"
+#include "content/common/view_messages.h"
+#include "content/public/common/file_chooser_params.h"
+#include "content/renderer/pepper/pepper_file_chooser_host.h"
+#include "content/renderer/pepper/pepper_instance_state_accessor.h"
+#include "content/renderer/render_view_impl.h"
+#include "content/test/test_content_client.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/host/host_message_context.h"
+#include "ppapi/host/ppapi_host.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/proxy/resource_message_params.h"
+#include "ppapi/proxy/resource_message_test_sink.h"
+#include "ppapi/shared_impl/ppapi_permissions.h"
+#include "ppapi/shared_impl/ppb_file_ref_shared.h"
+#include "ppapi/shared_impl/resource_tracker.h"
+#include "ppapi/shared_impl/test_globals.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/dialogs/selected_file_info.h"
+
+namespace content {
+
+namespace {
+
+class PepperFileChooserHostTest : public RenderViewTest {
+ public:
+  PepperFileChooserHostTest() : pp_instance_(123456) {}
+
+  virtual void SetUp() {
+    SetContentClient(&client_);
+    RenderViewTest::SetUp();
+
+    globals_.GetResourceTracker()->DidCreateInstance(pp_instance_);
+  }
+  virtual void TearDown() {
+    globals_.GetResourceTracker()->DidDeleteInstance(pp_instance_);
+
+    RenderViewTest::TearDown();
+    SetContentClient(NULL);
+  }
+
+  PP_Instance pp_instance() const { return pp_instance_; }
+
+ private:
+  PP_Instance pp_instance_;
+
+  ppapi::TestGlobals globals_;
+  TestContentClient client_;
+};
+
+// For testing to convert our hardcoded file paths to 8-bit.
+std::string FilePathToUTF8(const FilePath::StringType& path) {
+#if defined(OS_WIN)
+  return UTF16ToUTF8(path);
+#else
+  return path.value();
+#endif
+}
+
+class MockInstanceState : public PepperInstanceStateAccessor {
+ public:
+  MockInstangeState() : has_user_gesture_(true) {}
+  virtual ~MockInstangeState() {}
+
+  void set_has_user_gesture(bool has) { has_user_gesture_ = has; }
+
+  // PepperInstanceStateAccessor.
+  virtual bool IsValidInstance(PP_Instance instance) OVERRIDE {
+    return true;
+  }
+  virtual bool HasUserGesture(PP_Instance instance) OVERRIDE {
+    return has_user_gesture_;
+  }
+
+ private:
+  bool has_user_gesture_;
+};
+
+}  // namespace
+
+TEST_F(PepperFileChooserHostTest, Show) {
+  PP_Resource pp_resource = 123;
+
+  MockInstangeState state;
+  ppapi::proxy::ResourceMessageTestSink sink;
+  ppapi::host::PpapiHost host(&sink, NULL, ppapi::PpapiPermissions());
+  RenderViewImpl* view_impl = static_cast<RenderViewImpl*>(view_);
+  PepperFileChooserHost chooser(&host, pp_instance(), pp_resource, view_impl,
+                                &state);
+
+  std::vector<std::string> accept;
+  accept.push_back("text/plain");
+  PpapiHostMsg_FileChooser_Show show_msg(false, false, std::string(), accept);
+
+  ppapi::proxy::ResourceMessageCallParams call_params(pp_resource, 0);
+  ppapi::host::HostMessageContext context(call_params);
+  int32 result = chooser.OnResourceMessageReceived(show_msg, &context);
+  EXPECT_EQ(PP_OK_COMPLETIONPENDING, result);
+
+  // The render view should have sent a chooser request to the browser
+  // (caught by the render thread's test message sink).
+  const IPC::Message* msg = render_thread_->sink().GetUniqueMessageMatching(
+      ViewHostMsg_RunFileChooser::ID);
+  ASSERT_TRUE(msg);
+  ViewHostMsg_RunFileChooser::Schema::Param call_msg_param;
+  ASSERT_TRUE(ViewHostMsg_RunFileChooser::Read(msg, &call_msg_param));
+  const FileChooserParams& chooser_params = call_msg_param.a;
+
+  // Basic validation of request.
+  EXPECT_EQ(FileChooserParams::Open, chooser_params.mode);
+  ASSERT_EQ(1u, chooser_params.accept_types.size());
+  EXPECT_EQ(accept[0], UTF16ToUTF8(chooser_params.accept_types[0]));
+
+  // Send a chooser reply to the render view. Note our reply path has to have a
+  // path separator so we include both a Unix and a Windows one.
+  ui::SelectedFileInfo selected_info;
+  selected_info.display_name = FILE_PATH_LITERAL("Hello, world");
+  selected_info.path = FilePath(FILE_PATH_LITERAL("myp\\ath/foo"));
+  std::vector<ui::SelectedFileInfo> selected_info_vector;
+  selected_info_vector.push_back(selected_info);
+  ViewMsg_RunFileChooserResponse response(view_impl->routing_id(),
+                                          selected_info_vector);
+  EXPECT_TRUE(view_impl->OnMessageReceived(response));
+
+  // This should have sent the Pepper reply to our test sink.
+  ppapi::proxy::ResourceMessageReplyParams reply_params;
+  IPC::Message reply_msg;
+  ASSERT_TRUE(sink.GetFirstResourceReplyMatching(
+      PpapiPluginMsg_FileChooser_ShowReply::ID, &reply_params, &reply_msg));
+
+  // Basic validation of reply.
+  EXPECT_EQ(call_params.sequence(), reply_params.sequence());
+  EXPECT_EQ(PP_OK, reply_params.result());
+  PpapiPluginMsg_FileChooser_ShowReply::Schema::Param reply_msg_param;
+  ASSERT_TRUE(PpapiPluginMsg_FileChooser_ShowReply::Read(&reply_msg,
+                                                         &reply_msg_param));
+  const std::vector<ppapi::PPB_FileRef_CreateInfo>& chooser_results =
+      reply_msg_param.a;
+  ASSERT_EQ(1u, chooser_results.size());
+  // Note path is empty because this is an external filesystem.
+  EXPECT_EQ(std::string(), chooser_results[0].path);
+  EXPECT_EQ(FilePathToUTF8(selected_info.display_name),
+            chooser_results[0].name);
+}
+
+TEST_F(PepperFileChooserHostTest, NoUserGesture) {
+  PP_Resource pp_resource = 123;
+
+  MockInstangeState state;
+  ppapi::proxy::ResourceMessageTestSink sink;
+  ppapi::host::PpapiHost host(&sink, NULL, ppapi::PpapiPermissions());
+  RenderViewImpl* view_impl = static_cast<RenderViewImpl*>(view_);
+  PepperFileChooserHost chooser(&host, pp_instance(), pp_resource, view_impl,
+                                &state);
+
+  // Say there's no user gesture.
+  state.set_has_user_gesture(false);
+
+  std::vector<std::string> accept;
+  accept.push_back("text/plain");
+  PpapiHostMsg_FileChooser_Show show_msg(false, false, std::string(), accept);
+
+  ppapi::proxy::ResourceMessageCallParams call_params(pp_resource, 0);
+  ppapi::host::HostMessageContext context(call_params);
+  int32 result = chooser.OnResourceMessageReceived(show_msg, &context);
+  EXPECT_EQ(PP_ERROR_NO_USER_GESTURE, result);
+}
+
+}  // namespace content