win8/metro_driver/winrt_utils.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef WIN8_METRO_DRIVER_WINRT_UTILS_H_
   6 #define WIN8_METRO_DRIVER_WINRT_UTILS_H_
   7
   8 #include <string>
   9
  10 #include <roapi.h>
  11 #include <windows.applicationmodel.core.h>
  12
  13 #include "base/strings/string16.h"
  14
  15 void CheckHR(HRESULT hr, const char* str = nullptr);
  16
  17 HSTRING MakeHString(const string16& str);
  18
  19 string16 MakeStdWString(HSTRING hstring);
  20
  21 namespace winrt_utils {
  22
  23 template<unsigned int size, typename T>
  24 HRESULT CreateActivationFactory(wchar_t const (&class_name)[size], T** object) {
  25   mswrw::HStringReference ref_class_name(class_name);
  26   return winfoundtn::GetActivationFactory(ref_class_name.Get(), object);
  27 }
  28
  29 #define DECLARE_CREATE_PROPERTY(Name, Type) \
  30 HRESULT Create ## Name ## Property( \
  31     Type value, \
  32     winfoundtn::IPropertyValue** prop);
  33
  34 DECLARE_CREATE_PROPERTY(String, HSTRING);
  35 DECLARE_CREATE_PROPERTY(Int16, INT16);
  36 DECLARE_CREATE_PROPERTY(Int32, INT32);
  37 DECLARE_CREATE_PROPERTY(Int64, INT64);
  38 DECLARE_CREATE_PROPERTY(UInt8, UINT8);
  39 DECLARE_CREATE_PROPERTY(UInt16, UINT16);
  40 DECLARE_CREATE_PROPERTY(UInt32, UINT32);
  41 DECLARE_CREATE_PROPERTY(UInt64, UINT64);
  42
  43 // Compares |lhs| with |rhs| and return the |result| as
  44 // WindowsCompareStringOrdinal would do, i.e.,
  45 // -1 if |lhs| is less than |rhs|, 0 if they are equal, and
  46 // +1 if |lhs| is greater than |rhs|.
  47 HRESULT CompareProperties(
  48     winfoundtn::IPropertyValue* lhs, winfoundtn::IPropertyValue* rhs,
  49     INT32* result);
  50
  51 // Looks for a pinned taskbar shortcut in the current user's profile. If it
  52 // finds one, will return any arguments that have been appended to the
  53 // shortcut's command line. This is intended for scenarios where those shortcut
  54 // parameters are ordinarily ignored (i.e. metro apps on win8). Returns an
  55 // empty string on failure.
  56 string16 ReadArgumentsFromPinnedTaskbarShortcut();
  57
  58 }  // namespace winrt_utils
  59
  60 #endif  // WIN8_METRO_DRIVER_WINRT_UTILS_H_