shell_integration.cc revision 03b57e008b61dfcb1fbad3aea950ae0e001748b0 
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 "chrome/browser/shell_integration.h"
6
7#include "base/bind.h"
8#include "base/command_line.h"
9#include "base/file_util.h"
10#include "base/path_service.h"
11#include "base/prefs/pref_service.h"
12#include "base/strings/string_util.h"
13#include "base/strings/utf_string_conversions.h"
14#include "base/threading/thread_restrictions.h"
15#include "chrome/browser/policy/policy_path_parser.h"
16#include "chrome/common/chrome_paths.h"
17#include "chrome/common/chrome_switches.h"
18#include "chrome/common/pref_names.h"
19#include "content/public/browser/browser_thread.h"
20
21#if defined(OS_CHROMEOS)
22#include "chromeos/chromeos_switches.h"
23#endif
24
25#if !defined(OS_WIN)
26#include "chrome/common/chrome_version_info.h"
27#include "chrome/grit/chromium_strings.h"
28#include "ui/base/l10n/l10n_util.h"
29#endif
30
31using content::BrowserThread;
32
33ShellIntegration::DefaultWebClientSetPermission
34    ShellIntegration::CanSetAsDefaultProtocolClient() {
35  // Allowed as long as the browser can become the operating system default
36  // browser.
37  return CanSetAsDefaultBrowser();
38}
39
40static const struct ShellIntegration::AppModeInfo* gAppModeInfo = NULL;
41
42// static
43void ShellIntegration::SetAppModeInfo(const struct AppModeInfo* info) {
44  gAppModeInfo = info;
45}
46
47// static
48const struct ShellIntegration::AppModeInfo* ShellIntegration::AppModeInfo() {
49  return gAppModeInfo;
50}
51
52// static
53bool ShellIntegration::IsRunningInAppMode() {
54  return gAppModeInfo != NULL;
55}
56
57// static
58CommandLine ShellIntegration::CommandLineArgsForLauncher(
59    const GURL& url,
60    const std::string& extension_app_id,
61    const base::FilePath& profile_path) {
62  base::ThreadRestrictions::AssertIOAllowed();
63  CommandLine new_cmd_line(CommandLine::NO_PROGRAM);
64
65  AppendProfileArgs(
66      extension_app_id.empty() ? base::FilePath() : profile_path,
67      &new_cmd_line);
68
69  // If |extension_app_id| is present, we use the kAppId switch rather than
70  // the kApp switch (the launch url will be read from the extension app
71  // during launch.
72  if (!extension_app_id.empty()) {
73    new_cmd_line.AppendSwitchASCII(switches::kAppId, extension_app_id);
74  } else {
75    // Use '--app=url' instead of just 'url' to launch the browser with minimal
76    // chrome.
77    // Note: Do not change this flag!  Old Gears shortcuts will break if you do!
78    new_cmd_line.AppendSwitchASCII(switches::kApp, url.spec());
79  }
80  return new_cmd_line;
81}
82
83// static
84void ShellIntegration::AppendProfileArgs(
85    const base::FilePath& profile_path,
86    CommandLine* command_line) {
87  DCHECK(command_line);
88  const CommandLine& cmd_line = *CommandLine::ForCurrentProcess();
89
90  // Use the same UserDataDir for new launches that we currently have set.
91  base::FilePath user_data_dir =
92      cmd_line.GetSwitchValuePath(switches::kUserDataDir);
93#if defined(OS_MACOSX) || defined(OS_WIN)
94  policy::path_parser::CheckUserDataDirPolicy(&user_data_dir);
95#endif
96  if (!user_data_dir.empty()) {
97    // Make sure user_data_dir is an absolute path.
98    user_data_dir = base::MakeAbsoluteFilePath(user_data_dir);
99    if (!user_data_dir.empty() && base::PathExists(user_data_dir))
100      command_line->AppendSwitchPath(switches::kUserDataDir, user_data_dir);
101  }
102
103#if defined(OS_CHROMEOS)
104  base::FilePath profile = cmd_line.GetSwitchValuePath(
105      chromeos::switches::kLoginProfile);
106  if (!profile.empty())
107    command_line->AppendSwitchPath(chromeos::switches::kLoginProfile, profile);
108#else
109  if (!profile_path.empty())
110    command_line->AppendSwitchPath(switches::kProfileDirectory,
111                                   profile_path.BaseName());
112#endif
113}
114
115#if !defined(OS_WIN)
116
117base::string16 ShellIntegration::GetAppShortcutsSubdirName() {
118  if (chrome::VersionInfo::GetChannel() == chrome::VersionInfo::CHANNEL_CANARY)
119    return l10n_util::GetStringUTF16(IDS_APP_SHORTCUTS_SUBDIR_NAME_CANARY);
120  return l10n_util::GetStringUTF16(IDS_APP_SHORTCUTS_SUBDIR_NAME);
121}
122
123// static
124bool ShellIntegration::SetAsDefaultBrowserInteractive() {
125  return false;
126}
127
128// static
129bool ShellIntegration::SetAsDefaultProtocolClientInteractive(
130    const std::string& protocol) {
131  return false;
132}
133#endif
134
135bool ShellIntegration::DefaultWebClientObserver::IsOwnedByWorker() {
136  return false;
137}
138
139bool ShellIntegration::DefaultWebClientObserver::
140    IsInteractiveSetDefaultPermitted() {
141  return false;
142}
143
144///////////////////////////////////////////////////////////////////////////////
145// ShellIntegration::DefaultWebClientWorker
146//
147
148ShellIntegration::DefaultWebClientWorker::DefaultWebClientWorker(
149    DefaultWebClientObserver* observer)
150    : observer_(observer) {
151}
152
153void ShellIntegration::DefaultWebClientWorker::StartCheckIsDefault() {
154  if (observer_) {
155    observer_->SetDefaultWebClientUIState(STATE_PROCESSING);
156    BrowserThread::PostTask(
157        BrowserThread::FILE, FROM_HERE,
158        base::Bind(
159            &DefaultWebClientWorker::ExecuteCheckIsDefault, this));
160  }
161}
162
163void ShellIntegration::DefaultWebClientWorker::StartSetAsDefault() {
164  bool interactive_permitted = false;
165  if (observer_) {
166    observer_->SetDefaultWebClientUIState(STATE_PROCESSING);
167    interactive_permitted = observer_->IsInteractiveSetDefaultPermitted();
168  }
169  BrowserThread::PostTask(
170      BrowserThread::FILE, FROM_HERE,
171      base::Bind(&DefaultWebClientWorker::ExecuteSetAsDefault, this,
172                 interactive_permitted));
173}
174
175void ShellIntegration::DefaultWebClientWorker::ObserverDestroyed() {
176  // Our associated view has gone away, so we shouldn't call back to it if
177  // our worker thread returns after the view is dead.
178  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
179  observer_ = NULL;
180}
181
182///////////////////////////////////////////////////////////////////////////////
183// DefaultWebClientWorker, private:
184
185void ShellIntegration::DefaultWebClientWorker::ExecuteCheckIsDefault() {
186  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
187  DefaultWebClientState state = CheckIsDefault();
188  BrowserThread::PostTask(
189      BrowserThread::UI, FROM_HERE,
190      base::Bind(
191          &DefaultWebClientWorker::CompleteCheckIsDefault, this, state));
192}
193
194void ShellIntegration::DefaultWebClientWorker::CompleteCheckIsDefault(
195    DefaultWebClientState state) {
196  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
197  UpdateUI(state);
198  // The worker has finished everything it needs to do, so free the observer
199  // if we own it.
200  if (observer_ && observer_->IsOwnedByWorker()) {
201    delete observer_;
202    observer_ = NULL;
203  }
204}
205
206void ShellIntegration::DefaultWebClientWorker::ExecuteSetAsDefault(
207    bool interactive_permitted) {
208  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
209
210  bool result = SetAsDefault(interactive_permitted);
211  BrowserThread::PostTask(
212      BrowserThread::UI, FROM_HERE,
213      base::Bind(&DefaultWebClientWorker::CompleteSetAsDefault, this, result));
214}
215
216void ShellIntegration::DefaultWebClientWorker::CompleteSetAsDefault(
217    bool succeeded) {
218  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
219  // First tell the observer what the SetAsDefault call has returned.
220  if (observer_)
221    observer_->OnSetAsDefaultConcluded(succeeded);
222  // Set as default completed, check again to make sure it stuck...
223  StartCheckIsDefault();
224}
225
226void ShellIntegration::DefaultWebClientWorker::UpdateUI(
227    DefaultWebClientState state) {
228  if (observer_) {
229    switch (state) {
230      case NOT_DEFAULT:
231        observer_->SetDefaultWebClientUIState(STATE_NOT_DEFAULT);
232        break;
233      case IS_DEFAULT:
234        observer_->SetDefaultWebClientUIState(STATE_IS_DEFAULT);
235        break;
236      case UNKNOWN_DEFAULT:
237        observer_->SetDefaultWebClientUIState(STATE_UNKNOWN);
238        break;
239      default:
240        break;
241    }
242  }
243}
244
245///////////////////////////////////////////////////////////////////////////////
246// ShellIntegration::DefaultBrowserWorker
247//
248
249ShellIntegration::DefaultBrowserWorker::DefaultBrowserWorker(
250    DefaultWebClientObserver* observer)
251    : DefaultWebClientWorker(observer) {
252}
253
254///////////////////////////////////////////////////////////////////////////////
255// DefaultBrowserWorker, private:
256
257ShellIntegration::DefaultWebClientState
258ShellIntegration::DefaultBrowserWorker::CheckIsDefault() {
259  return ShellIntegration::GetDefaultBrowser();
260}
261
262bool ShellIntegration::DefaultBrowserWorker::SetAsDefault(
263    bool interactive_permitted) {
264  bool result = false;
265  switch (ShellIntegration::CanSetAsDefaultBrowser()) {
266    case ShellIntegration::SET_DEFAULT_UNATTENDED:
267      result = ShellIntegration::SetAsDefaultBrowser();
268      break;
269    case ShellIntegration::SET_DEFAULT_INTERACTIVE:
270      if (interactive_permitted)
271        result = ShellIntegration::SetAsDefaultBrowserInteractive();
272      break;
273    default:
274      NOTREACHED();
275  }
276
277  return result;
278}
279
280///////////////////////////////////////////////////////////////////////////////
281// ShellIntegration::DefaultProtocolClientWorker
282//
283
284ShellIntegration::DefaultProtocolClientWorker::DefaultProtocolClientWorker(
285    DefaultWebClientObserver* observer, const std::string& protocol)
286    : DefaultWebClientWorker(observer),
287      protocol_(protocol) {
288}
289
290///////////////////////////////////////////////////////////////////////////////
291// DefaultProtocolClientWorker, private:
292
293ShellIntegration::DefaultWebClientState
294ShellIntegration::DefaultProtocolClientWorker::CheckIsDefault() {
295  return ShellIntegration::IsDefaultProtocolClient(protocol_);
296}
297
298bool ShellIntegration::DefaultProtocolClientWorker::SetAsDefault(
299    bool interactive_permitted) {
300  bool result = false;
301  switch (ShellIntegration::CanSetAsDefaultProtocolClient()) {
302    case ShellIntegration::SET_DEFAULT_NOT_ALLOWED:
303      result = false;
304      break;
305    case ShellIntegration::SET_DEFAULT_UNATTENDED:
306      result = ShellIntegration::SetAsDefaultProtocolClient(protocol_);
307      break;
308    case ShellIntegration::SET_DEFAULT_INTERACTIVE:
309      if (interactive_permitted) {
310        result = ShellIntegration::SetAsDefaultProtocolClientInteractive(
311            protocol_);
312      }
313      break;
314  }
315
316  return result;
317}
318