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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 #include "ui/base/win/shell.h"
6 
7 #include <dwmapi.h>
8 #include <shlobj.h>  // Must be before propkey.
9 #include <propkey.h>
10 #include <shellapi.h>
11 
12 #include "base/command_line.h"
13 #include "base/files/file_path.h"
14 #include "base/native_library.h"
15 #include "base/strings/string_util.h"
16 #include "base/win/metro.h"
17 #include "base/win/scoped_comptr.h"
18 #include "base/win/win_util.h"
19 #include "base/win/windows_version.h"
20 #include "ui/base/ui_base_switches.h"
21 
22 namespace ui {
23 namespace win {
24 
25 // Show the Windows "Open With" dialog box to ask the user to pick an app to
26 // open the file with.
OpenItemWithExternalApp(const string16 & full_path)27 bool OpenItemWithExternalApp(const string16& full_path) {
28   SHELLEXECUTEINFO sei = { sizeof(sei) };
29   sei.fMask = SEE_MASK_FLAG_DDEWAIT;
30   sei.nShow = SW_SHOWNORMAL;
31   sei.lpVerb = L"openas";
32   sei.lpFile = full_path.c_str();
33   return (TRUE == ::ShellExecuteExW(&sei));
34 }
35 
OpenAnyViaShell(const string16 & full_path,const string16 & directory,const string16 & args,DWORD mask)36 bool OpenAnyViaShell(const string16& full_path,
37                      const string16& directory,
38                      const string16& args,
39                      DWORD mask) {
40   SHELLEXECUTEINFO sei = { sizeof(sei) };
41   sei.fMask = mask;
42   sei.nShow = SW_SHOWNORMAL;
43   sei.lpFile = full_path.c_str();
44   sei.lpDirectory = directory.c_str();
45   if (!args.empty())
46     sei.lpParameters = args.c_str();
47 
48   if (::ShellExecuteExW(&sei))
49     return true;
50   if (::GetLastError() == ERROR_NO_ASSOCIATION)
51     return OpenItemWithExternalApp(full_path);
52   return false;
53 }
54 
OpenItemViaShell(const base::FilePath & full_path)55 bool OpenItemViaShell(const base::FilePath& full_path) {
56   return OpenAnyViaShell(full_path.value(), full_path.DirName().value(),
57                          string16(), 0);
58 }
59 
OpenItemViaShellNoZoneCheck(const base::FilePath & full_path)60 bool OpenItemViaShellNoZoneCheck(const base::FilePath& full_path) {
61   return OpenAnyViaShell(full_path.value(), string16(), string16(),
62                          SEE_MASK_NOZONECHECKS | SEE_MASK_FLAG_DDEWAIT);
63 }
64 
PreventWindowFromPinning(HWND hwnd)65 bool PreventWindowFromPinning(HWND hwnd) {
66   // This functionality is only available on Win7+. It also doesn't make sense
67   // to do this for Chrome Metro.
68   if (base::win::GetVersion() < base::win::VERSION_WIN7 ||
69       base::win::IsMetroProcess())
70     return false;
71   base::win::ScopedComPtr<IPropertyStore> pps;
72   HRESULT result = SHGetPropertyStoreForWindow(
73       hwnd, __uuidof(*pps), reinterpret_cast<void**>(pps.Receive()));
74   if (FAILED(result))
75     return false;
76 
77   return base::win::SetBooleanValueForPropertyStore(
78              pps, PKEY_AppUserModel_PreventPinning, true);
79 }
80 
81 // TODO(calamity): investigate moving this out of the UI thread as COM
82 // operations may spawn nested message loops which can cause issues.
SetAppDetailsForWindow(const string16 & app_id,const string16 & app_icon,const string16 & relaunch_command,const string16 & relaunch_display_name,HWND hwnd)83 void SetAppDetailsForWindow(const string16& app_id,
84                             const string16& app_icon,
85                             const string16& relaunch_command,
86                             const string16& relaunch_display_name,
87                             HWND hwnd) {
88   // This functionality is only available on Win7+. It also doesn't make sense
89   // to do this for Chrome Metro.
90   if (base::win::GetVersion() < base::win::VERSION_WIN7 ||
91       base::win::IsMetroProcess())
92     return;
93   base::win::ScopedComPtr<IPropertyStore> pps;
94   HRESULT result = SHGetPropertyStoreForWindow(
95       hwnd, __uuidof(*pps), reinterpret_cast<void**>(pps.Receive()));
96   if (S_OK == result) {
97     if (!app_id.empty())
98       base::win::SetAppIdForPropertyStore(pps, app_id.c_str());
99     if (!app_icon.empty()) {
100       base::win::SetStringValueForPropertyStore(
101           pps, PKEY_AppUserModel_RelaunchIconResource, app_icon.c_str());
102     }
103     if (!relaunch_command.empty()) {
104       base::win::SetStringValueForPropertyStore(
105           pps, PKEY_AppUserModel_RelaunchCommand, relaunch_command.c_str());
106     }
107     if (!relaunch_display_name.empty()) {
108       base::win::SetStringValueForPropertyStore(
109           pps, PKEY_AppUserModel_RelaunchDisplayNameResource,
110           relaunch_display_name.c_str());
111     }
112   }
113 }
114 
SetAppIdForWindow(const string16 & app_id,HWND hwnd)115 void SetAppIdForWindow(const string16& app_id, HWND hwnd) {
116   SetAppDetailsForWindow(app_id, string16(), string16(), string16(), hwnd);
117 }
118 
SetAppIconForWindow(const string16 & app_icon,HWND hwnd)119 void SetAppIconForWindow(const string16& app_icon, HWND hwnd) {
120   SetAppDetailsForWindow(string16(), app_icon, string16(), string16(), hwnd);
121 }
122 
SetRelaunchDetailsForWindow(const string16 & relaunch_command,const string16 & display_name,HWND hwnd)123 void SetRelaunchDetailsForWindow(const string16& relaunch_command,
124                                  const string16& display_name,
125                                  HWND hwnd) {
126   SetAppDetailsForWindow(string16(),
127                          string16(),
128                          relaunch_command,
129                          display_name,
130                          hwnd);
131 }
132 
IsAeroGlassEnabled()133 bool IsAeroGlassEnabled() {
134   // For testing in Win8 (where it is not possible to disable composition) the
135   // user can specify this command line switch to mimic the behavior.  In this
136   // mode, cross-HWND transparency is not supported and various types of
137   // widgets fallback to more simplified rendering behavior.
138   if (CommandLine::ForCurrentProcess()->HasSwitch(
139       switches::kDisableDwmComposition))
140     return false;
141 
142   if (base::win::GetVersion() < base::win::VERSION_VISTA)
143     return false;
144   // If composition is not enabled, we behave like on XP.
145   BOOL enabled = FALSE;
146   return SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled;
147 }
148 
149 }  // namespace win
150 }  // namespace ui
151