1// Copyright 2014 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/ui/views/apps/chrome_native_app_window_views_win.h"
6
7#include "apps/ui/views/app_window_frame_view.h"
8#include "ash/shell.h"
9#include "base/command_line.h"
10#include "base/files/file_util.h"
11#include "base/path_service.h"
12#include "base/strings/utf_string_conversions.h"
13#include "base/threading/sequenced_worker_pool.h"
14#include "chrome/browser/apps/per_app_settings_service.h"
15#include "chrome/browser/apps/per_app_settings_service_factory.h"
16#include "chrome/browser/jumplist_updater_win.h"
17#include "chrome/browser/metro_utils/metro_chrome_win.h"
18#include "chrome/browser/profiles/profile.h"
19#include "chrome/browser/shell_integration.h"
20#include "chrome/browser/ui/views/apps/app_window_desktop_native_widget_aura_win.h"
21#include "chrome/browser/ui/views/apps/glass_app_window_frame_view_win.h"
22#include "chrome/browser/web_applications/web_app.h"
23#include "chrome/browser/web_applications/web_app_win.h"
24#include "chrome/common/chrome_icon_resources_win.h"
25#include "chrome/common/chrome_switches.h"
26#include "chrome/grit/generated_resources.h"
27#include "content/public/browser/browser_thread.h"
28#include "extensions/browser/app_window/app_window.h"
29#include "extensions/browser/app_window/app_window_registry.h"
30#include "extensions/browser/extension_util.h"
31#include "extensions/common/extension.h"
32#include "ui/aura/remote_window_tree_host_win.h"
33#include "ui/base/l10n/l10n_util.h"
34#include "ui/base/win/shell.h"
35#include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
36#include "ui/views/win/hwnd_util.h"
37
38ChromeNativeAppWindowViewsWin::ChromeNativeAppWindowViewsWin()
39    : glass_frame_view_(NULL), weak_ptr_factory_(this) {
40}
41
42void ChromeNativeAppWindowViewsWin::ActivateParentDesktopIfNecessary() {
43  // Only switching into Ash from Native is supported. Tearing the user out of
44  // Metro mode can only be done by launching a process from Metro mode itself.
45  // This is done for launching apps, but not regular activations.
46  if (IsRunningInAsh() &&
47      chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_NATIVE) {
48    chrome::ActivateMetroChrome();
49  }
50}
51
52HWND ChromeNativeAppWindowViewsWin::GetNativeAppWindowHWND() const {
53  return views::HWNDForWidget(widget()->GetTopLevelWidget());
54}
55
56bool ChromeNativeAppWindowViewsWin::IsRunningInAsh() {
57  if (!ash::Shell::HasInstance())
58    return false;
59
60  views::Widget* widget =
61      implicit_cast<views::WidgetDelegate*>(this)->GetWidget();
62  chrome::HostDesktopType host_desktop_type =
63      chrome::GetHostDesktopTypeForNativeWindow(widget->GetNativeWindow());
64  return host_desktop_type == chrome::HOST_DESKTOP_TYPE_ASH;
65}
66
67void ChromeNativeAppWindowViewsWin::EnsureCaptionStyleSet() {
68  // Windows seems to have issues maximizing windows without WS_CAPTION.
69  // The default views / Aura implementation will remove this if we are using
70  // frameless or colored windows, so we put it back here.
71  HWND hwnd = GetNativeAppWindowHWND();
72  int current_style = ::GetWindowLong(hwnd, GWL_STYLE);
73  ::SetWindowLong(hwnd, GWL_STYLE, current_style | WS_CAPTION);
74}
75
76void ChromeNativeAppWindowViewsWin::OnBeforeWidgetInit(
77    views::Widget::InitParams* init_params,
78    views::Widget* widget) {
79  content::BrowserContext* browser_context = app_window()->browser_context();
80  std::string extension_id = app_window()->extension_id();
81  // If an app has any existing windows, ensure new ones are created on the
82  // same desktop.
83  extensions::AppWindow* any_existing_window =
84      extensions::AppWindowRegistry::Get(browser_context)
85          ->GetCurrentAppWindowForApp(extension_id);
86  chrome::HostDesktopType desktop_type;
87  if (any_existing_window) {
88    desktop_type = chrome::GetHostDesktopTypeForNativeWindow(
89        any_existing_window->GetNativeWindow());
90  } else {
91    PerAppSettingsService* settings =
92        PerAppSettingsServiceFactory::GetForBrowserContext(browser_context);
93    if (settings->HasDesktopLastLaunchedFrom(extension_id)) {
94      desktop_type = settings->GetDesktopLastLaunchedFrom(extension_id);
95    } else {
96      // We don't know what desktop this app was last launched from, so take our
97      // best guess as to what desktop the user is on.
98      desktop_type = chrome::GetActiveDesktop();
99    }
100  }
101  if (desktop_type == chrome::HOST_DESKTOP_TYPE_ASH)
102    init_params->context = ash::Shell::GetPrimaryRootWindow();
103  else
104    init_params->native_widget = new AppWindowDesktopNativeWidgetAuraWin(this);
105}
106
107void ChromeNativeAppWindowViewsWin::InitializeDefaultWindow(
108    const extensions::AppWindow::CreateParams& create_params) {
109  ChromeNativeAppWindowViews::InitializeDefaultWindow(create_params);
110
111  // Remaining initialization is for Windows shell integration, which doesn't
112  // apply to app windows in Ash.
113  if (IsRunningInAsh())
114    return;
115
116  const extensions::Extension* extension = app_window()->GetExtension();
117  if (!extension)
118    return;
119
120  std::string app_name =
121      web_app::GenerateApplicationNameFromExtensionId(extension->id());
122  base::string16 app_name_wide = base::UTF8ToWide(app_name);
123  HWND hwnd = GetNativeAppWindowHWND();
124  Profile* profile =
125      Profile::FromBrowserContext(app_window()->browser_context());
126  app_model_id_ =
127      ShellIntegration::GetAppModelIdForProfile(app_name_wide,
128                                                profile->GetPath());
129  ui::win::SetAppIdForWindow(app_model_id_, hwnd);
130  web_app::UpdateRelaunchDetailsForApp(profile, extension, hwnd);
131
132  if (!create_params.alpha_enabled)
133    EnsureCaptionStyleSet();
134  UpdateShelfMenu();
135}
136
137views::NonClientFrameView*
138ChromeNativeAppWindowViewsWin::CreateStandardDesktopAppFrame() {
139  glass_frame_view_ = NULL;
140  if (ui::win::IsAeroGlassEnabled()) {
141    glass_frame_view_ = new GlassAppWindowFrameViewWin(this, widget());
142    return glass_frame_view_;
143  }
144  return ChromeNativeAppWindowViews::CreateStandardDesktopAppFrame();
145}
146
147void ChromeNativeAppWindowViewsWin::Show() {
148  ActivateParentDesktopIfNecessary();
149  ChromeNativeAppWindowViews::Show();
150}
151
152void ChromeNativeAppWindowViewsWin::Activate() {
153  ActivateParentDesktopIfNecessary();
154  ChromeNativeAppWindowViews::Activate();
155}
156
157void ChromeNativeAppWindowViewsWin::UpdateShelfMenu() {
158  if (!JumpListUpdater::IsEnabled() || IsRunningInAsh())
159    return;
160
161  // Currently the only option is related to ephemeral apps, so avoid updating
162  // the app's jump list when the feature is not enabled.
163  if (!CommandLine::ForCurrentProcess()->HasSwitch(
164          switches::kEnableEphemeralApps)) {
165    return;
166  }
167
168  const extensions::Extension* extension = app_window()->GetExtension();
169  if (!extension)
170    return;
171
172  // For the icon resources.
173  base::FilePath chrome_path;
174  if (!PathService::Get(base::FILE_EXE, &chrome_path))
175    return;
176
177  DCHECK(!app_model_id_.empty());
178
179  JumpListUpdater jumplist_updater(app_model_id_);
180  if (!jumplist_updater.BeginUpdate())
181    return;
182
183  // Add item to install ephemeral apps.
184  if (extensions::util::IsEphemeralApp(extension->id(),
185                                       app_window()->browser_context())) {
186    scoped_refptr<ShellLinkItem> link(new ShellLinkItem());
187    link->set_title(l10n_util::GetStringUTF16(IDS_APP_INSTALL_TITLE));
188    link->set_icon(chrome_path.value(),
189                   icon_resources::kInstallPackagedAppIndex);
190    ShellIntegration::AppendProfileArgs(
191        app_window()->browser_context()->GetPath(), link->GetCommandLine());
192    link->GetCommandLine()->AppendSwitchASCII(
193        switches::kInstallEphemeralAppFromWebstore, extension->id());
194
195    ShellLinkItemList items;
196    items.push_back(link);
197    jumplist_updater.AddTasks(items);
198  }
199
200  // Note that an empty jumplist must still be committed to clear all items.
201  jumplist_updater.CommitUpdate();
202}
203