summaryrefslogtreecommitdiffstats
path: root/widget/windows/WinTaskbar.cpp
blob: 66854f3ee2ea9331384205c74120edd9017c98d0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
/* vim: se cin sw=2 ts=2 et : */
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsIWinTaskbar.h"
#include "WinTaskbar.h"
#include "TaskbarPreview.h"
#include "nsITaskbarPreviewController.h"

#include "mozilla/RefPtr.h"
#include "mozilla/widget/JumpListBuilder.h"
#include <nsError.h>
#include <nsCOMPtr.h>
#include <nsIWidget.h>
#include <nsIBaseWindow.h>
#include <nsServiceManagerUtils.h>
#include "nsIXULAppInfo.h"
#include "nsILegacyJumpListBuilder.h"
#include "nsUXThemeData.h"
#include "nsWindow.h"
#include "WinUtils.h"
#include "TaskbarTabPreview.h"
#include "TaskbarWindowPreview.h"
#include "LegacyJumpListBuilder.h"
#include "nsWidgetsCID.h"
#include "nsPIDOMWindow.h"
#include "nsAppDirectoryServiceDefs.h"
#include "mozilla/Preferences.h"
#include "nsAppRunner.h"
#include "nsXREDirProvider.h"
#include "mozilla/widget/WinRegistry.h"
#include <io.h>
#include <propvarutil.h>
#include <propkey.h>
#include <shellapi.h>

static NS_DEFINE_CID(kLegacyJumpListBuilderCID,
                     NS_WIN_LEGACYJUMPLISTBUILDER_CID);

namespace {

HWND GetHWNDFromDocShell(nsIDocShell* aShell) {
  nsCOMPtr<nsIBaseWindow> baseWindow(
      do_QueryInterface(reinterpret_cast<nsISupports*>(aShell)));

  if (!baseWindow) return nullptr;

  nsCOMPtr<nsIWidget> widget;
  baseWindow->GetMainWidget(getter_AddRefs(widget));

  return widget ? (HWND)widget->GetNativeData(NS_NATIVE_WINDOW) : nullptr;
}

HWND GetHWNDFromDOMWindow(mozIDOMWindow* dw) {
  nsCOMPtr<nsIWidget> widget;

  if (!dw) return nullptr;

  nsCOMPtr<nsPIDOMWindowInner> window = nsPIDOMWindowInner::From(dw);
  return GetHWNDFromDocShell(window->GetDocShell());
}

nsresult SetWindowAppUserModelProp(mozIDOMWindow* aParent,
                                   const nsString& aIdentifier) {
  NS_ENSURE_ARG_POINTER(aParent);

  if (aIdentifier.IsEmpty()) return NS_ERROR_INVALID_ARG;

  HWND toplevelHWND = ::GetAncestor(GetHWNDFromDOMWindow(aParent), GA_ROOT);

  if (!toplevelHWND) return NS_ERROR_INVALID_ARG;

  RefPtr<IPropertyStore> pPropStore;
  if (FAILED(SHGetPropertyStoreForWindow(toplevelHWND, IID_IPropertyStore,
                                         getter_AddRefs(pPropStore)))) {
    return NS_ERROR_INVALID_ARG;
  }

  PROPVARIANT pv;
  if (FAILED(InitPropVariantFromString(aIdentifier.get(), &pv))) {
    return NS_ERROR_UNEXPECTED;
  }

  nsresult rv = NS_OK;
  if (FAILED(pPropStore->SetValue(PKEY_AppUserModel_ID, pv)) ||
      FAILED(pPropStore->Commit())) {
    rv = NS_ERROR_FAILURE;
  }

  PropVariantClear(&pv);

  return rv;
}

///////////////////////////////////////////////////////////////////////////////
// default nsITaskbarPreviewController

class DefaultController final : public nsITaskbarPreviewController {
  ~DefaultController() {}
  HWND mWnd;

 public:
  explicit DefaultController(HWND hWnd) : mWnd(hWnd) {}

  NS_DECL_ISUPPORTS
  NS_DECL_NSITASKBARPREVIEWCONTROLLER
};

NS_IMETHODIMP
DefaultController::GetWidth(uint32_t* aWidth) {
  RECT r;
  ::GetClientRect(mWnd, &r);
  *aWidth = r.right;
  return NS_OK;
}

NS_IMETHODIMP
DefaultController::GetHeight(uint32_t* aHeight) {
  RECT r;
  ::GetClientRect(mWnd, &r);
  *aHeight = r.bottom;
  return NS_OK;
}

NS_IMETHODIMP
DefaultController::GetThumbnailAspectRatio(float* aThumbnailAspectRatio) {
  uint32_t width, height;
  GetWidth(&width);
  GetHeight(&height);
  if (!height) height = 1;

  *aThumbnailAspectRatio = width / float(height);
  return NS_OK;
}

NS_IMETHODIMP
DefaultController::RequestThumbnail(nsITaskbarPreviewCallback* aCallback,
                                    uint32_t width, uint32_t height) {
  return NS_OK;
}

NS_IMETHODIMP
DefaultController::RequestPreview(nsITaskbarPreviewCallback* aCallback) {
  return NS_OK;
}

NS_IMETHODIMP
DefaultController::OnClose(void) {
  MOZ_ASSERT_UNREACHABLE(
      "OnClose should not be called for "
      "TaskbarWindowPreviews");
  return NS_OK;
}

NS_IMETHODIMP
DefaultController::OnActivate(bool* rAcceptActivation) {
  *rAcceptActivation = true;
  MOZ_ASSERT_UNREACHABLE(
      "OnActivate should not be called for "
      "TaskbarWindowPreviews");
  return NS_OK;
}

NS_IMETHODIMP
DefaultController::OnClick(nsITaskbarPreviewButton* button) { return NS_OK; }

NS_IMPL_ISUPPORTS(DefaultController, nsITaskbarPreviewController)
}  // namespace

namespace mozilla {
namespace widget {

///////////////////////////////////////////////////////////////////////////////
// nsIWinTaskbar

NS_IMPL_ISUPPORTS(WinTaskbar, nsIWinTaskbar)

bool WinTaskbar::Initialize() {
  if (mTaskbar) return true;

  ::CoInitialize(nullptr);
  HRESULT hr =
      ::CoCreateInstance(CLSID_TaskbarList, nullptr, CLSCTX_INPROC_SERVER,
                         IID_ITaskbarList4, (void**)&mTaskbar);
  if (FAILED(hr)) return false;

  hr = mTaskbar->HrInit();
  if (FAILED(hr)) {
    // This may fail with shell extensions like blackbox installed.
    NS_WARNING("Unable to initialize taskbar");
    NS_RELEASE(mTaskbar);
    return false;
  }
  return true;
}

WinTaskbar::WinTaskbar() : mTaskbar(nullptr) {}

WinTaskbar::~WinTaskbar() {
  if (mTaskbar) {  // match successful Initialize() call
    NS_RELEASE(mTaskbar);
    ::CoUninitialize();
  }
}

// static
bool WinTaskbar::GenerateAppUserModelID(nsAString& aAppUserModelId,
                                        bool aPrivateBrowsing) {
  // If marked as such in prefs, use a hash of the profile path for the id
  // instead of the install path hash setup by the installer.
  if (Preferences::GetBool("taskbar.grouping.useprofile", false)) {
    nsCOMPtr<nsIFile> profileDir;
    NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR,
                           getter_AddRefs(profileDir));
    bool exists = false;
    if (profileDir && NS_SUCCEEDED(profileDir->Exists(&exists)) && exists) {
      nsAutoCString path;
      if (NS_SUCCEEDED(profileDir->GetPersistentDescriptor(path))) {
        nsAutoString id;
        id.AppendInt(HashString(path));
        if (!id.IsEmpty()) {
          aAppUserModelId.Assign(id);

          if (aPrivateBrowsing) {
            aAppUserModelId.AppendLiteral(";PrivateBrowsingAUMID");
          }

          return true;
        }
      }
    }
  }

  // The default value is set by the installer and is stored in the registry
  // under (HKLM||HKCU)/Software/Mozilla/Firefox/TaskBarIDs. If for any reason
  // hash generation operation fails, the installer will not store a value in
  // the registry or set ids on shortcuts. A lack of an id can also occur for
  // zipped builds.
  nsCOMPtr<nsIXULAppInfo> appInfo =
      do_GetService("@mozilla.org/xre/app-info;1");
  nsCString appName;
  if (appInfo && NS_SUCCEEDED(appInfo->GetName(appName))) {
    nsAutoString regKey;
    regKey.AssignLiteral("Software\\Mozilla\\");
    AppendASCIItoUTF16(appName, regKey);
    regKey.AppendLiteral("\\TaskBarIDs");

    WCHAR path[MAX_PATH];
    if (GetModuleFileNameW(nullptr, path, MAX_PATH)) {
      wchar_t* slash = wcsrchr(path, '\\');
      if (!slash) return false;
      *slash = '\0';  // no trailing slash

      nsDependentString pathStr(path);
      for (auto* rootKey : {HKEY_LOCAL_MACHINE, HKEY_CURRENT_USER}) {
        if (auto aumid = WinRegistry::GetString(rootKey, regKey, pathStr)) {
          aAppUserModelId = std::move(*aumid);
          break;
        }
      }
    }
  }

  // If we haven't found an ID yet then use the install hash. In xpcshell tests
  // the directory provider may not have been initialized so bypass in this
  // case.
  if (aAppUserModelId.IsEmpty() && gDirServiceProvider) {
    gDirServiceProvider->GetInstallHash(aAppUserModelId);
  }

  if (aPrivateBrowsing) {
    aAppUserModelId.AppendLiteral(";PrivateBrowsingAUMID");
  }

  return !aAppUserModelId.IsEmpty();
}

// static
bool WinTaskbar::GetAppUserModelID(nsAString& aAppUserModelId,
                                   bool aPrivateBrowsing) {
  // If an ID has already been set then use that.
  PWSTR id;
  if (SUCCEEDED(GetCurrentProcessExplicitAppUserModelID(&id))) {
    aAppUserModelId.Assign(id);
    CoTaskMemFree(id);
  }

  return GenerateAppUserModelID(aAppUserModelId, aPrivateBrowsing);
}

NS_IMETHODIMP
WinTaskbar::GetDefaultGroupId(nsAString& aDefaultGroupId) {
  if (!GetAppUserModelID(aDefaultGroupId)) return NS_ERROR_UNEXPECTED;

  return NS_OK;
}

NS_IMETHODIMP
WinTaskbar::GetDefaultPrivateGroupId(nsAString& aDefaultPrivateGroupId) {
  if (!GetAppUserModelID(aDefaultPrivateGroupId, true))
    return NS_ERROR_UNEXPECTED;

  return NS_OK;
}

// (static) Called from AppShell
bool WinTaskbar::RegisterAppUserModelID() {
  nsAutoString uid;
  if (!GetAppUserModelID(uid)) return false;

  return SUCCEEDED(SetCurrentProcessExplicitAppUserModelID(uid.get()));
}

NS_IMETHODIMP
WinTaskbar::GetAvailable(bool* aAvailable) {
  // ITaskbarList4::HrInit() may fail with shell extensions like blackbox
  // installed. Initialize early to return available=false in those cases.
  *aAvailable = Initialize();

  return NS_OK;
}

NS_IMETHODIMP
WinTaskbar::CreateTaskbarTabPreview(nsIDocShell* shell,
                                    nsITaskbarPreviewController* controller,
                                    nsITaskbarTabPreview** _retval) {
  if (!Initialize()) return NS_ERROR_NOT_AVAILABLE;

  NS_ENSURE_ARG_POINTER(shell);
  NS_ENSURE_ARG_POINTER(controller);

  HWND toplevelHWND = ::GetAncestor(GetHWNDFromDocShell(shell), GA_ROOT);

  if (!toplevelHWND) return NS_ERROR_INVALID_ARG;

  RefPtr<TaskbarTabPreview> preview(
      new TaskbarTabPreview(mTaskbar, controller, toplevelHWND, shell));
  if (!preview) return NS_ERROR_OUT_OF_MEMORY;

  nsresult rv = preview->Init();
  if (NS_FAILED(rv)) {
    return rv;
  }

  preview.forget(_retval);

  return NS_OK;
}

NS_IMETHODIMP
WinTaskbar::GetTaskbarWindowPreview(nsIDocShell* shell,
                                    nsITaskbarWindowPreview** _retval) {
  if (!Initialize()) return NS_ERROR_NOT_AVAILABLE;

  NS_ENSURE_ARG_POINTER(shell);

  HWND toplevelHWND = ::GetAncestor(GetHWNDFromDocShell(shell), GA_ROOT);

  if (!toplevelHWND) return NS_ERROR_INVALID_ARG;

  nsWindow* window = WinUtils::GetNSWindowPtr(toplevelHWND);

  if (!window) return NS_ERROR_FAILURE;

  nsCOMPtr<nsITaskbarWindowPreview> preview = window->GetTaskbarPreview();
  if (!preview) {
    RefPtr<DefaultController> defaultController =
        new DefaultController(toplevelHWND);

    TaskbarWindowPreview* previewRaw = new TaskbarWindowPreview(
        mTaskbar, defaultController, toplevelHWND, shell);
    if (!previewRaw) {
      return NS_ERROR_OUT_OF_MEMORY;
    }

    preview = previewRaw;

    nsresult rv = previewRaw->Init();
    if (NS_FAILED(rv)) {
      return rv;
    }
    window->SetTaskbarPreview(preview);
  }

  preview.forget(_retval);

  return NS_OK;
}

NS_IMETHODIMP
WinTaskbar::GetTaskbarProgress(nsIDocShell* shell,
                               nsITaskbarProgress** _retval) {
  nsCOMPtr<nsITaskbarWindowPreview> preview;
  nsresult rv = GetTaskbarWindowPreview(shell, getter_AddRefs(preview));
  NS_ENSURE_SUCCESS(rv, rv);

  return CallQueryInterface(preview, _retval);
}

NS_IMETHODIMP
WinTaskbar::GetOverlayIconController(
    nsIDocShell* shell, nsITaskbarOverlayIconController** _retval) {
  nsCOMPtr<nsITaskbarWindowPreview> preview;
  nsresult rv = GetTaskbarWindowPreview(shell, getter_AddRefs(preview));
  NS_ENSURE_SUCCESS(rv, rv);

  return CallQueryInterface(preview, _retval);
}

NS_IMETHODIMP
WinTaskbar::CreateLegacyJumpListBuilder(
    bool aPrivateBrowsing, nsILegacyJumpListBuilder** aJumpListBuilder) {
  nsresult rv;

  if (LegacyJumpListBuilder::sBuildingList) return NS_ERROR_ALREADY_INITIALIZED;

  nsCOMPtr<nsILegacyJumpListBuilder> builder =
      do_CreateInstance(kLegacyJumpListBuilderCID, &rv);
  if (NS_FAILED(rv)) return NS_ERROR_UNEXPECTED;

  NS_IF_ADDREF(*aJumpListBuilder = builder);

  nsAutoString aumid;
  GenerateAppUserModelID(aumid, aPrivateBrowsing);
  builder->SetAppUserModelID(aumid);

  return NS_OK;
}

NS_IMETHODIMP
WinTaskbar::CreateJumpListBuilder(bool aPrivateBrowsing,
                                  nsIJumpListBuilder** aJumpListBuilder) {
  nsAutoString aumid;
  GenerateAppUserModelID(aumid, aPrivateBrowsing);

  nsCOMPtr<nsIJumpListBuilder> builder = new JumpListBuilder(aumid);
  if (!builder) {
    return NS_ERROR_UNEXPECTED;
  }

  NS_IF_ADDREF(*aJumpListBuilder = builder);
  return NS_OK;
}

NS_IMETHODIMP
WinTaskbar::GetGroupIdForWindow(mozIDOMWindow* aParent,
                                nsAString& aIdentifier) {
  NS_ENSURE_ARG_POINTER(aParent);
  HWND toplevelHWND = ::GetAncestor(GetHWNDFromDOMWindow(aParent), GA_ROOT);
  if (!toplevelHWND) return NS_ERROR_INVALID_ARG;
  RefPtr<IPropertyStore> pPropStore;
  if (FAILED(SHGetPropertyStoreForWindow(toplevelHWND, IID_IPropertyStore,
                                         getter_AddRefs(pPropStore)))) {
    return NS_ERROR_INVALID_ARG;
  }
  PROPVARIANT pv;
  PropVariantInit(&pv);
  auto cleanupPropVariant = MakeScopeExit([&] { PropVariantClear(&pv); });
  if (FAILED(pPropStore->GetValue(PKEY_AppUserModel_ID, &pv))) {
    return NS_ERROR_FAILURE;
  }
  if (pv.vt != VT_LPWSTR) {
    // This can happen when there is no window specific group ID set
    // It's not an error case so we have to check for empty strings
    // returned from the function.
    return NS_OK;
  }
  aIdentifier.Assign(char16ptr_t(pv.pwszVal));
  return NS_OK;
}

NS_IMETHODIMP
WinTaskbar::SetGroupIdForWindow(mozIDOMWindow* aParent,
                                const nsAString& aIdentifier) {
  return SetWindowAppUserModelProp(aParent, nsString(aIdentifier));
}

NS_IMETHODIMP
WinTaskbar::PrepareFullScreen(void* aHWND, bool aFullScreen) {
  if (!Initialize()) return NS_ERROR_NOT_AVAILABLE;

  NS_ENSURE_ARG_POINTER(aHWND);

  if (!::IsWindow((HWND)aHWND)) return NS_ERROR_INVALID_ARG;

  HRESULT hr = mTaskbar->MarkFullscreenWindow((HWND)aHWND, aFullScreen);
  if (FAILED(hr)) {
    return NS_ERROR_UNEXPECTED;
  }

  return NS_OK;
}

}  // namespace widget
}  // namespace mozilla