Implement the file chooser as a new resource "host"

ppapi/proxy/file_chooser_resource_unittest.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/message_loop.h"
+#include "ppapi/c/dev/ppb_file_chooser_dev.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/proxy/file_chooser_resource.h"
+#include "ppapi/proxy/ppapi_messages.h"
+#include "ppapi/proxy/ppapi_proxy_test.h"
+#include "ppapi/thunk/thunk.h"
+#include "ppapi/shared_impl/scoped_pp_resource.h"
+#include "ppapi/shared_impl/var.h"
+
+namespace ppapi {
+namespace proxy {
+
+namespace {
+
+typedef PluginProxyTest FileChooserResourceTest;
+
+void* GetFileRefDataBuffer(void* user_data,
+                           uint32_t element_count,
+                           uint32_t element_size) {
+  EXPECT_TRUE(element_size == sizeof(PP_Resource));
+  std::vector<PP_Resource>* output =
+      static_cast<std::vector<PP_Resource>*>(user_data);
+  output->resize(element_count);
+  if (element_count > 0)
+    return &(*output)[0];
+  return NULL;
+}
+
+void DoNothingCallback(void* user_data, int32_t result) {
+}
+
+// Calls PopulateAcceptTypes and verifies that the resulting array contains
+// the given values. The values may be NULL if there aren't expected to be
+// that many results.
+bool CheckParseAcceptType(const std::string& input,
+                          const char* expected1,
+                          const char* expected2) {
+  std::vector<std::string> output;
+  FileChooserResource::PopulateAcceptTypes(input, &output);
+
+  const size_t kCount = 2;
+  const char* expected[kCount] = { expected1, expected2 };
+
+  for (size_t i = 0; i < kCount; i++) {
+    if (!expected[i])
+      return i == output.size();
+    if (output.size() <= i)
+      return false;
+    if (output[i] != expected[i])
+      return false;
+  }
+
+  return output.size() == kCount;
+}
+
+}  // namespace
+
+// Does a full test of Show() and reply functionality in the plugin side using
+// the public C interfaces.
+TEST_F(FileChooserResourceTest, Show) {
+  const PPB_FileChooser_Dev_0_6* chooser_iface =
+      thunk::GetPPB_FileChooser_Dev_0_6_Thunk();
+  ScopedPPResource res(ScopedPPResource::PassRef(),
+      chooser_iface->Create(pp_instance(), PP_FILECHOOSERMODE_OPEN,
+                            PP_MakeUndefined()));
+
+  std::vector<PP_Resource> dest;
+  PP_ArrayOutput output;
+  output.GetDataBuffer = &GetFileRefDataBuffer;
+  output.user_data = &dest;
+
+  int32_t result = chooser_iface->Show(
+      res, output, PP_MakeCompletionCallback(&DoNothingCallback, NULL));
+  ASSERT_EQ(PP_OK_COMPLETIONPENDING, result);
+
+  // Should have sent a "show" message.
+  ResourceMessageCallParams params;
+  IPC::Message msg;
+  ASSERT_TRUE(sink().GetFirstResourceCallMatching(
+      PpapiHostMsg_FileChooser_Show::ID, &params, &msg));
+
+  ResourceMessageReplyParams reply_params(params.pp_resource(),
+                                          params.sequence());
+  reply_params.set_result(PP_OK);
+
+  // Synthesize a response with one file ref in it. Note that it must have a
+  // host resource value set or deserialization will fail. Since there isn't
+  // actually a host, this can be whatever we want.
+  std::vector<PPB_FileRef_CreateInfo> create_info_array;
+  PPB_FileRef_CreateInfo create_info;
+  create_info.resource.SetHostResource(pp_instance(), 123);
+  create_info.path = "foo/bar";
+  create_info.name = "baz";
+  create_info_array.push_back(create_info);
+  ASSERT_TRUE(plugin_dispatcher()->OnMessageReceived(
+      PpapiPluginMsg_ResourceReply(reply_params,
+          PpapiPluginMsg_FileChooser_ShowReply(create_info_array))));
+
+  // Should have populated our vector.
+  ASSERT_EQ(1u, dest.size());
+  ScopedPPResource dest_deletor(dest[0]);  // Ensure it's cleaned up.
+
+  const PPB_FileRef_1_0* file_ref_iface = thunk::GetPPB_FileRef_1_0_Thunk();
+  EXPECT_EQ(PP_FILESYSTEMTYPE_EXTERNAL,
+            file_ref_iface->GetFileSystemType(dest[0]));
+
+  ScopedPPVar name_var(file_ref_iface->GetName(dest[0]));
+  EXPECT_VAR_IS_STRING(create_info.name, name_var);
+  
+  // Path should be undefined since it's external filesystem.
+  ScopedPPVar path_var(file_ref_iface->GetPath(dest[0]));
+  EXPECT_EQ(PP_VARTYPE_UNDEFINED, path_var.get().type);
+}
+
+TEST_F(FileChooserResourceTest, PopulateAcceptTypes) {
+  EXPECT_TRUE(CheckParseAcceptType(std::string(), NULL, NULL));
+  EXPECT_TRUE(CheckParseAcceptType("/", NULL, NULL));
+  EXPECT_TRUE(CheckParseAcceptType(".", NULL, NULL));
+  EXPECT_TRUE(CheckParseAcceptType(",, , ", NULL, NULL));
+
+  EXPECT_TRUE(CheckParseAcceptType("app/txt", "app/txt", NULL));
+  EXPECT_TRUE(CheckParseAcceptType("app/txt,app/pdf", "app/txt", "app/pdf"));
+  EXPECT_TRUE(CheckParseAcceptType(" app/txt , app/pdf ",
+                                   "app/txt", "app/pdf"));
+
+  // No dot or slash ones should be skipped.
+  EXPECT_TRUE(CheckParseAcceptType("foo", NULL, NULL));
+  EXPECT_TRUE(CheckParseAcceptType("foo,.txt", ".txt", NULL));
+}
+
+}  // namespace proxy
+}  // namespace ppapi