The Tor Browser / file comparison
comparison: embedding/components/windowwatcher/src/nsWindowWatcher.cpp
embedding/components/windowwatcher/src/nsWindowWatcher.cpp
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| -1:000000000000 | 0:eb19e28e7814 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim: set ts=2 sw=2 et tw=78: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 //#define USEWEAKREFS // (haven't quite figured that out yet) | |
| 8 | |
| 9 #include "nsWindowWatcher.h" | |
| 10 #include "nsAutoWindowStateHelper.h" | |
| 11 | |
| 12 #include "nsCRT.h" | |
| 13 #include "nsNetUtil.h" | |
| 14 #include "nsJSUtils.h" | |
| 15 #include "plstr.h" | |
| 16 | |
| 17 #include "nsIBaseWindow.h" | |
| 18 #include "nsIDocShell.h" | |
| 19 #include "nsIDocShellLoadInfo.h" | |
| 20 #include "nsIDocShellTreeItem.h" | |
| 21 #include "nsIDocShellTreeOwner.h" | |
| 22 #include "nsIDocumentLoader.h" | |
| 23 #include "nsIDocument.h" | |
| 24 #include "nsIDOMDocument.h" | |
| 25 #include "nsIDOMWindow.h" | |
| 26 #include "nsIDOMChromeWindow.h" | |
| 27 #include "nsIDOMModalContentWindow.h" | |
| 28 #include "nsIPrompt.h" | |
| 29 #include "nsIScriptObjectPrincipal.h" | |
| 30 #include "nsIScreen.h" | |
| 31 #include "nsIScreenManager.h" | |
| 32 #include "nsIScriptContext.h" | |
| 33 #include "nsIObserverService.h" | |
| 34 #include "nsIScriptGlobalObject.h" | |
| 35 #include "nsIScriptSecurityManager.h" | |
| 36 #include "nsXPCOM.h" | |
| 37 #include "nsIURI.h" | |
| 38 #include "nsIWebBrowser.h" | |
| 39 #include "nsIWebBrowserChrome.h" | |
| 40 #include "nsIWebNavigation.h" | |
| 41 #include "nsIWindowCreator.h" | |
| 42 #include "nsIWindowCreator2.h" | |
| 43 #include "nsIXPConnect.h" | |
| 44 #include "nsIXULRuntime.h" | |
| 45 #include "nsPIDOMWindow.h" | |
| 46 #include "nsIMarkupDocumentViewer.h" | |
| 47 #include "nsIContentViewer.h" | |
| 48 #include "nsIWindowProvider.h" | |
| 49 #include "nsIMutableArray.h" | |
| 50 #include "nsISupportsArray.h" | |
| 51 #include "nsIDOMStorage.h" | |
| 52 #include "nsIDOMStorageManager.h" | |
| 53 #include "nsIWidget.h" | |
| 54 #include "nsFocusManager.h" | |
| 55 #include "nsIPresShell.h" | |
| 56 #include "nsPresContext.h" | |
| 57 #include "nsContentUtils.h" | |
| 58 #include "nsCxPusher.h" | |
| 59 #include "nsIPrefBranch.h" | |
| 60 #include "nsIPrefService.h" | |
| 61 #include "nsSandboxFlags.h" | |
| 62 #include "mozilla/Preferences.h" | |
| 63 | |
| 64 #ifdef USEWEAKREFS | |
| 65 #include "nsIWeakReference.h" | |
| 66 #endif | |
| 67 | |
| 68 using namespace mozilla; | |
| 69 | |
| 70 /**************************************************************** | |
| 71 ******************** nsWatcherWindowEntry ********************** | |
| 72 ****************************************************************/ | |
| 73 | |
| 74 class nsWindowWatcher; | |
| 75 | |
| 76 struct nsWatcherWindowEntry { | |
| 77 | |
| 78 nsWatcherWindowEntry(nsIDOMWindow *inWindow, nsIWebBrowserChrome *inChrome) { | |
| 79 #ifdef USEWEAKREFS | |
| 80 mWindow = do_GetWeakReference(inWindow); | |
| 81 #else | |
| 82 mWindow = inWindow; | |
| 83 #endif | |
| 84 nsCOMPtr<nsISupportsWeakReference> supportsweak(do_QueryInterface(inChrome)); | |
| 85 if (supportsweak) { | |
| 86 supportsweak->GetWeakReference(getter_AddRefs(mChromeWeak)); | |
| 87 } else { | |
| 88 mChrome = inChrome; | |
| 89 mChromeWeak = 0; | |
| 90 } | |
| 91 ReferenceSelf(); | |
| 92 } | |
| 93 ~nsWatcherWindowEntry() {} | |
| 94 | |
| 95 void InsertAfter(nsWatcherWindowEntry *inOlder); | |
| 96 void Unlink(); | |
| 97 void ReferenceSelf(); | |
| 98 | |
| 99 #ifdef USEWEAKREFS | |
| 100 nsCOMPtr<nsIWeakReference> mWindow; | |
| 101 #else // still not an owning ref | |
| 102 nsIDOMWindow *mWindow; | |
| 103 #endif | |
| 104 nsIWebBrowserChrome *mChrome; | |
| 105 nsWeakPtr mChromeWeak; | |
| 106 // each struct is in a circular, doubly-linked list | |
| 107 nsWatcherWindowEntry *mYounger, // next younger in sequence | |
| 108 *mOlder; | |
| 109 }; | |
| 110 | |
| 111 void nsWatcherWindowEntry::InsertAfter(nsWatcherWindowEntry *inOlder) | |
| 112 { | |
| 113 if (inOlder) { | |
| 114 mOlder = inOlder; | |
| 115 mYounger = inOlder->mYounger; | |
| 116 mOlder->mYounger = this; | |
| 117 if (mOlder->mOlder == mOlder) | |
| 118 mOlder->mOlder = this; | |
| 119 mYounger->mOlder = this; | |
| 120 if (mYounger->mYounger == mYounger) | |
| 121 mYounger->mYounger = this; | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 void nsWatcherWindowEntry::Unlink() { | |
| 126 | |
| 127 mOlder->mYounger = mYounger; | |
| 128 mYounger->mOlder = mOlder; | |
| 129 ReferenceSelf(); | |
| 130 } | |
| 131 | |
| 132 void nsWatcherWindowEntry::ReferenceSelf() { | |
| 133 | |
| 134 mYounger = this; | |
| 135 mOlder = this; | |
| 136 } | |
| 137 | |
| 138 /**************************************************************** | |
| 139 ****************** nsWatcherWindowEnumerator ******************* | |
| 140 ****************************************************************/ | |
| 141 | |
| 142 class nsWatcherWindowEnumerator : public nsISimpleEnumerator { | |
| 143 | |
| 144 public: | |
| 145 nsWatcherWindowEnumerator(nsWindowWatcher *inWatcher); | |
| 146 virtual ~nsWatcherWindowEnumerator(); | |
| 147 NS_IMETHOD HasMoreElements(bool *retval); | |
| 148 NS_IMETHOD GetNext(nsISupports **retval); | |
| 149 | |
| 150 NS_DECL_ISUPPORTS | |
| 151 | |
| 152 private: | |
| 153 friend class nsWindowWatcher; | |
| 154 | |
| 155 nsWatcherWindowEntry *FindNext(); | |
| 156 void WindowRemoved(nsWatcherWindowEntry *inInfo); | |
| 157 | |
| 158 nsWindowWatcher *mWindowWatcher; | |
| 159 nsWatcherWindowEntry *mCurrentPosition; | |
| 160 }; | |
| 161 | |
| 162 NS_IMPL_ADDREF(nsWatcherWindowEnumerator) | |
| 163 NS_IMPL_RELEASE(nsWatcherWindowEnumerator) | |
| 164 NS_IMPL_QUERY_INTERFACE(nsWatcherWindowEnumerator, nsISimpleEnumerator) | |
| 165 | |
| 166 nsWatcherWindowEnumerator::nsWatcherWindowEnumerator(nsWindowWatcher *inWatcher) | |
| 167 : mWindowWatcher(inWatcher), | |
| 168 mCurrentPosition(inWatcher->mOldestWindow) | |
| 169 { | |
| 170 mWindowWatcher->AddEnumerator(this); | |
| 171 mWindowWatcher->AddRef(); | |
| 172 } | |
| 173 | |
| 174 nsWatcherWindowEnumerator::~nsWatcherWindowEnumerator() | |
| 175 { | |
| 176 mWindowWatcher->RemoveEnumerator(this); | |
| 177 mWindowWatcher->Release(); | |
| 178 } | |
| 179 | |
| 180 NS_IMETHODIMP | |
| 181 nsWatcherWindowEnumerator::HasMoreElements(bool *retval) | |
| 182 { | |
| 183 if (!retval) | |
| 184 return NS_ERROR_INVALID_ARG; | |
| 185 | |
| 186 *retval = mCurrentPosition? true : false; | |
| 187 return NS_OK; | |
| 188 } | |
| 189 | |
| 190 NS_IMETHODIMP | |
| 191 nsWatcherWindowEnumerator::GetNext(nsISupports **retval) | |
| 192 { | |
| 193 if (!retval) | |
| 194 return NS_ERROR_INVALID_ARG; | |
| 195 | |
| 196 *retval = nullptr; | |
| 197 | |
| 198 #ifdef USEWEAKREFS | |
| 199 while (mCurrentPosition) { | |
| 200 CallQueryReferent(mCurrentPosition->mWindow, retval); | |
| 201 if (*retval) { | |
| 202 mCurrentPosition = FindNext(); | |
| 203 break; | |
| 204 } else // window is gone! | |
| 205 mWindowWatcher->RemoveWindow(mCurrentPosition); | |
| 206 } | |
| 207 NS_IF_ADDREF(*retval); | |
| 208 #else | |
| 209 if (mCurrentPosition) { | |
| 210 CallQueryInterface(mCurrentPosition->mWindow, retval); | |
| 211 mCurrentPosition = FindNext(); | |
| 212 } | |
| 213 #endif | |
| 214 return NS_OK; | |
| 215 } | |
| 216 | |
| 217 nsWatcherWindowEntry * | |
| 218 nsWatcherWindowEnumerator::FindNext() | |
| 219 { | |
| 220 nsWatcherWindowEntry *info; | |
| 221 | |
| 222 if (!mCurrentPosition) | |
| 223 return 0; | |
| 224 | |
| 225 info = mCurrentPosition->mYounger; | |
| 226 return info == mWindowWatcher->mOldestWindow ? 0 : info; | |
| 227 } | |
| 228 | |
| 229 // if a window is being removed adjust the iterator's current position | |
| 230 void nsWatcherWindowEnumerator::WindowRemoved(nsWatcherWindowEntry *inInfo) { | |
| 231 | |
| 232 if (mCurrentPosition == inInfo) | |
| 233 mCurrentPosition = mCurrentPosition != inInfo->mYounger ? | |
| 234 inInfo->mYounger : 0; | |
| 235 } | |
| 236 | |
| 237 /**************************************************************** | |
| 238 *********************** nsWindowWatcher ************************ | |
| 239 ****************************************************************/ | |
| 240 | |
| 241 NS_IMPL_ADDREF(nsWindowWatcher) | |
| 242 NS_IMPL_RELEASE(nsWindowWatcher) | |
| 243 NS_IMPL_QUERY_INTERFACE(nsWindowWatcher, | |
| 244 nsIWindowWatcher, | |
| 245 nsIPromptFactory, | |
| 246 nsPIWindowWatcher) | |
| 247 | |
| 248 nsWindowWatcher::nsWindowWatcher() : | |
| 249 mEnumeratorList(), | |
| 250 mOldestWindow(0), | |
| 251 mListLock("nsWindowWatcher.mListLock") | |
| 252 { | |
| 253 } | |
| 254 | |
| 255 nsWindowWatcher::~nsWindowWatcher() | |
| 256 { | |
| 257 // delete data | |
| 258 while (mOldestWindow) | |
| 259 RemoveWindow(mOldestWindow); | |
| 260 } | |
| 261 | |
| 262 nsresult | |
| 263 nsWindowWatcher::Init() | |
| 264 { | |
| 265 return NS_OK; | |
| 266 } | |
| 267 | |
| 268 /** | |
| 269 * Convert aArguments into either an nsIArray or nullptr. | |
| 270 * | |
| 271 * - If aArguments is nullptr, return nullptr. | |
| 272 * - If aArguments is an nsArray, return nullptr if it's empty, or otherwise | |
| 273 * return the array. | |
| 274 * - If aArguments is an nsISupportsArray, return nullptr if it's empty, or | |
| 275 * otherwise add its elements to an nsArray and return the new array. | |
| 276 * - Otherwise, return an nsIArray with one element: aArguments. | |
| 277 */ | |
| 278 static already_AddRefed<nsIArray> | |
| 279 ConvertArgsToArray(nsISupports* aArguments) | |
| 280 { | |
| 281 if (!aArguments) { | |
| 282 return nullptr; | |
| 283 } | |
| 284 | |
| 285 nsCOMPtr<nsIArray> array = do_QueryInterface(aArguments); | |
| 286 if (array) { | |
| 287 uint32_t argc = 0; | |
| 288 array->GetLength(&argc); | |
| 289 if (argc == 0) | |
| 290 return nullptr; | |
| 291 | |
| 292 return array.forget(); | |
| 293 } | |
| 294 | |
| 295 nsCOMPtr<nsISupportsArray> supArray = do_QueryInterface(aArguments); | |
| 296 if (supArray) { | |
| 297 uint32_t argc = 0; | |
| 298 supArray->Count(&argc); | |
| 299 if (argc == 0) { | |
| 300 return nullptr; | |
| 301 } | |
| 302 | |
| 303 nsCOMPtr<nsIMutableArray> mutableArray = | |
| 304 do_CreateInstance(NS_ARRAY_CONTRACTID); | |
| 305 NS_ENSURE_TRUE(mutableArray, nullptr); | |
| 306 | |
| 307 for (uint32_t i = 0; i < argc; i++) { | |
| 308 nsCOMPtr<nsISupports> elt; | |
| 309 supArray->GetElementAt(i, getter_AddRefs(elt)); | |
| 310 nsresult rv = mutableArray->AppendElement(elt, /* aWeak = */ false); | |
| 311 NS_ENSURE_SUCCESS(rv, nullptr); | |
| 312 } | |
| 313 | |
| 314 return mutableArray.forget(); | |
| 315 } | |
| 316 | |
| 317 nsCOMPtr<nsIMutableArray> singletonArray = | |
| 318 do_CreateInstance(NS_ARRAY_CONTRACTID); | |
| 319 NS_ENSURE_TRUE(singletonArray, nullptr); | |
| 320 | |
| 321 nsresult rv = singletonArray->AppendElement(aArguments, /* aWeak = */ false); | |
| 322 NS_ENSURE_SUCCESS(rv, nullptr); | |
| 323 | |
| 324 return singletonArray.forget(); | |
| 325 } | |
| 326 | |
| 327 NS_IMETHODIMP | |
| 328 nsWindowWatcher::OpenWindow(nsIDOMWindow *aParent, | |
| 329 const char *aUrl, | |
| 330 const char *aName, | |
| 331 const char *aFeatures, | |
| 332 nsISupports *aArguments, | |
| 333 nsIDOMWindow **_retval) | |
| 334 { | |
| 335 nsCOMPtr<nsIArray> argv = ConvertArgsToArray(aArguments); | |
| 336 | |
| 337 uint32_t argc = 0; | |
| 338 if (argv) { | |
| 339 argv->GetLength(&argc); | |
| 340 } | |
| 341 bool dialog = (argc != 0); | |
| 342 | |
| 343 return OpenWindowInternal(aParent, aUrl, aName, aFeatures, | |
| 344 /* calledFromJS = */ false, dialog, | |
| 345 /* navigate = */ true, argv, _retval); | |
| 346 } | |
| 347 | |
| 348 struct SizeSpec { | |
| 349 SizeSpec() : | |
| 350 mLeftSpecified(false), | |
| 351 mTopSpecified(false), | |
| 352 mOuterWidthSpecified(false), | |
| 353 mOuterHeightSpecified(false), | |
| 354 mInnerWidthSpecified(false), | |
| 355 mInnerHeightSpecified(false), | |
| 356 mUseDefaultWidth(false), | |
| 357 mUseDefaultHeight(false) | |
| 358 {} | |
| 359 | |
| 360 int32_t mLeft; | |
| 361 int32_t mTop; | |
| 362 int32_t mOuterWidth; // Total window width | |
| 363 int32_t mOuterHeight; // Total window height | |
| 364 int32_t mInnerWidth; // Content area width | |
| 365 int32_t mInnerHeight; // Content area height | |
| 366 | |
| 367 bool mLeftSpecified; | |
| 368 bool mTopSpecified; | |
| 369 bool mOuterWidthSpecified; | |
| 370 bool mOuterHeightSpecified; | |
| 371 bool mInnerWidthSpecified; | |
| 372 bool mInnerHeightSpecified; | |
| 373 | |
| 374 // If these booleans are true, don't look at the corresponding width values | |
| 375 // even if they're specified -- they'll be bogus | |
| 376 bool mUseDefaultWidth; | |
| 377 bool mUseDefaultHeight; | |
| 378 | |
| 379 bool PositionSpecified() const { | |
| 380 return mLeftSpecified || mTopSpecified; | |
| 381 } | |
| 382 | |
| 383 bool SizeSpecified() const { | |
| 384 return mOuterWidthSpecified || mOuterHeightSpecified || | |
| 385 mInnerWidthSpecified || mInnerHeightSpecified; | |
| 386 } | |
| 387 }; | |
| 388 | |
| 389 NS_IMETHODIMP | |
| 390 nsWindowWatcher::OpenWindow2(nsIDOMWindow *aParent, | |
| 391 const char *aUrl, | |
| 392 const char *aName, | |
| 393 const char *aFeatures, | |
| 394 bool aCalledFromScript, | |
| 395 bool aDialog, | |
| 396 bool aNavigate, | |
| 397 nsISupports *aArguments, | |
| 398 nsIDOMWindow **_retval) | |
| 399 { | |
| 400 nsCOMPtr<nsIArray> argv = ConvertArgsToArray(aArguments); | |
| 401 | |
| 402 uint32_t argc = 0; | |
| 403 if (argv) { | |
| 404 argv->GetLength(&argc); | |
| 405 } | |
| 406 | |
| 407 // This is extremely messed up, but this behavior is necessary because | |
| 408 // callers lie about whether they're a dialog window and whether they're | |
| 409 // called from script. Fixing this is bug 779939. | |
| 410 bool dialog = aDialog; | |
| 411 if (!aCalledFromScript) { | |
| 412 dialog = argc > 0; | |
| 413 } | |
| 414 | |
| 415 return OpenWindowInternal(aParent, aUrl, aName, aFeatures, | |
| 416 aCalledFromScript, dialog, | |
| 417 aNavigate, argv, _retval); | |
| 418 } | |
| 419 | |
| 420 nsresult | |
| 421 nsWindowWatcher::OpenWindowInternal(nsIDOMWindow *aParent, | |
| 422 const char *aUrl, | |
| 423 const char *aName, | |
| 424 const char *aFeatures, | |
| 425 bool aCalledFromJS, | |
| 426 bool aDialog, | |
| 427 bool aNavigate, | |
| 428 nsIArray *argv, | |
| 429 nsIDOMWindow **_retval) | |
| 430 { | |
| 431 nsresult rv = NS_OK; | |
| 432 bool nameSpecified, | |
| 433 featuresSpecified, | |
| 434 isNewToplevelWindow = false, | |
| 435 windowIsNew = false, | |
| 436 windowNeedsName = false, | |
| 437 windowIsModal = false, | |
| 438 uriToLoadIsChrome = false, | |
| 439 windowIsModalContentDialog = false; | |
| 440 uint32_t chromeFlags; | |
| 441 nsAutoString name; // string version of aName | |
| 442 nsAutoCString features; // string version of aFeatures | |
| 443 nsCOMPtr<nsIURI> uriToLoad; // from aUrl, if any | |
| 444 nsCOMPtr<nsIDocShellTreeOwner> parentTreeOwner; // from the parent window, if any | |
| 445 nsCOMPtr<nsIDocShellTreeItem> newDocShellItem; // from the new window | |
| 446 nsCxPusher callerContextGuard; | |
| 447 | |
| 448 NS_ENSURE_ARG_POINTER(_retval); | |
| 449 *_retval = 0; | |
| 450 | |
| 451 if (!nsContentUtils::IsSafeToRunScript()) { | |
| 452 return NS_ERROR_FAILURE; | |
| 453 } | |
| 454 | |
| 455 GetWindowTreeOwner(aParent, getter_AddRefs(parentTreeOwner)); | |
| 456 | |
| 457 if (aUrl) { | |
| 458 rv = URIfromURL(aUrl, aParent, getter_AddRefs(uriToLoad)); | |
| 459 if (NS_FAILED(rv)) | |
| 460 return rv; | |
| 461 uriToLoad->SchemeIs("chrome", &uriToLoadIsChrome); | |
| 462 } | |
| 463 | |
| 464 nameSpecified = false; | |
| 465 if (aName) { | |
| 466 CopyUTF8toUTF16(aName, name); | |
| 467 nameSpecified = true; | |
| 468 } | |
| 469 | |
| 470 featuresSpecified = false; | |
| 471 if (aFeatures) { | |
| 472 features.Assign(aFeatures); | |
| 473 featuresSpecified = true; | |
| 474 features.StripWhitespace(); | |
| 475 } | |
| 476 | |
| 477 // try to find an extant window with the given name | |
| 478 nsCOMPtr<nsIDOMWindow> foundWindow = SafeGetWindowByName(name, aParent); | |
| 479 GetWindowTreeItem(foundWindow, getter_AddRefs(newDocShellItem)); | |
| 480 | |
| 481 // Do sandbox checks here, instead of waiting until nsIDocShell::LoadURI. | |
| 482 // The state of the window can change before this call and if we are blocked | |
| 483 // because of sandboxing, we wouldn't want that to happen. | |
| 484 nsCOMPtr<nsPIDOMWindow> parentWindow = do_QueryInterface(aParent); | |
| 485 nsCOMPtr<nsIDocShell> parentDocShell; | |
| 486 if (parentWindow) { | |
| 487 parentDocShell = parentWindow->GetDocShell(); | |
| 488 if (parentDocShell) { | |
| 489 nsCOMPtr<nsIDocShell> foundDocShell = do_QueryInterface(newDocShellItem); | |
| 490 if (parentDocShell->IsSandboxedFrom(foundDocShell)) { | |
| 491 return NS_ERROR_DOM_INVALID_ACCESS_ERR; | |
| 492 } | |
| 493 } | |
| 494 } | |
| 495 | |
| 496 // no extant window? make a new one. | |
| 497 | |
| 498 // If no parent, consider it chrome. | |
| 499 bool hasChromeParent = true; | |
| 500 if (aParent) { | |
| 501 // Check if the parent document has chrome privileges. | |
| 502 nsCOMPtr<nsIDOMDocument> domdoc; | |
| 503 aParent->GetDocument(getter_AddRefs(domdoc)); | |
| 504 nsCOMPtr<nsIDocument> doc = do_QueryInterface(domdoc); | |
| 505 hasChromeParent = doc && nsContentUtils::IsChromeDoc(doc); | |
| 506 } | |
| 507 | |
| 508 // Make sure we call CalculateChromeFlags() *before* we push the | |
| 509 // callee context onto the context stack so that | |
| 510 // CalculateChromeFlags() sees the actual caller when doing its | |
| 511 // security checks. | |
| 512 chromeFlags = CalculateChromeFlags(aParent, features.get(), featuresSpecified, | |
| 513 aDialog, uriToLoadIsChrome, | |
| 514 hasChromeParent); | |
| 515 | |
| 516 // If we're not called through our JS version of the API, and we got | |
| 517 // our internal modal option, treat the window we're opening as a | |
| 518 // modal content window (and set the modal chrome flag). | |
| 519 if (!aCalledFromJS && argv && | |
| 520 WinHasOption(features.get(), "-moz-internal-modal", 0, nullptr)) { | |
| 521 windowIsModalContentDialog = true; | |
| 522 | |
| 523 // CHROME_MODAL gets inherited by dependent windows, which affects various | |
| 524 // platform-specific window state (especially on OSX). So we need some way | |
| 525 // to determine that this window was actually opened by nsGlobalWindow:: | |
| 526 // ShowModalDialog(), and that somebody is actually going to be watching | |
| 527 // for return values and all that. | |
| 528 chromeFlags |= nsIWebBrowserChrome::CHROME_MODAL_CONTENT_WINDOW; | |
| 529 chromeFlags |= nsIWebBrowserChrome::CHROME_MODAL; | |
| 530 } | |
| 531 | |
| 532 SizeSpec sizeSpec; | |
| 533 CalcSizeSpec(features.get(), sizeSpec); | |
| 534 | |
| 535 nsCOMPtr<nsIScriptSecurityManager> | |
| 536 sm(do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID)); | |
| 537 | |
| 538 bool isCallerChrome = nsContentUtils::IsCallerChrome(); | |
| 539 | |
| 540 JSContext *cx = GetJSContextFromWindow(aParent); | |
| 541 | |
| 542 bool windowTypeIsChrome = chromeFlags & nsIWebBrowserChrome::CHROME_OPENAS_CHROME; | |
| 543 if (isCallerChrome && !hasChromeParent && !windowTypeIsChrome && cx) { | |
| 544 // open() is called from chrome on a non-chrome window, push the context of the | |
| 545 // callee onto the context stack to prevent the caller's priveleges from leaking | |
| 546 // into code that runs while opening the new window. | |
| 547 // | |
| 548 // The reasoning for this is in bug 289204. Basically, chrome sometimes does | |
| 549 // someContentWindow.open(untrustedURL), and wants to be insulated from nasty | |
| 550 // javascript: URLs and such. But there are also cases where we create a | |
| 551 // window parented to a content window (such as a download dialog), usually | |
| 552 // directly with nsIWindowWatcher. In those cases, we want the principal of | |
| 553 // the initial about:blank document to be system, so that the subsequent XUL | |
| 554 // load can reuse the inner window and avoid blowing away expandos. As such, | |
| 555 // we decide whether to load with the principal of the caller or of the parent | |
| 556 // based on whether the docshell type is chrome or content. | |
| 557 | |
| 558 callerContextGuard.Push(cx); | |
| 559 } | |
| 560 | |
| 561 uint32_t activeDocsSandboxFlags = 0; | |
| 562 if (!newDocShellItem) { | |
| 563 // We're going to either open up a new window ourselves or ask a | |
| 564 // nsIWindowProvider for one. In either case, we'll want to set the right | |
| 565 // name on it. | |
| 566 windowNeedsName = true; | |
| 567 | |
| 568 // If the parent trying to open a new window is sandboxed | |
| 569 // without 'allow-popups', this is not allowed and we fail here. | |
| 570 if (aParent) { | |
| 571 nsCOMPtr<nsIDOMDocument> domdoc; | |
| 572 aParent->GetDocument(getter_AddRefs(domdoc)); | |
| 573 nsCOMPtr<nsIDocument> doc = do_QueryInterface(domdoc); | |
| 574 | |
| 575 if (doc) { | |
| 576 // Save sandbox flags for copying to new browsing context (docShell). | |
| 577 activeDocsSandboxFlags = doc->GetSandboxFlags(); | |
| 578 if (activeDocsSandboxFlags & SANDBOXED_AUXILIARY_NAVIGATION) { | |
| 579 return NS_ERROR_DOM_INVALID_ACCESS_ERR; | |
| 580 } | |
| 581 } | |
| 582 } | |
| 583 | |
| 584 // Now check whether it's ok to ask a window provider for a window. Don't | |
| 585 // do it if we're opening a dialog or if our parent is a chrome window or | |
| 586 // if we're opening something that has modal, dialog, or chrome flags set. | |
| 587 nsCOMPtr<nsIDOMChromeWindow> chromeWin = do_QueryInterface(aParent); | |
| 588 if (!aDialog && !chromeWin && | |
| 589 !(chromeFlags & (nsIWebBrowserChrome::CHROME_MODAL | | |
| 590 nsIWebBrowserChrome::CHROME_OPENAS_DIALOG | | |
| 591 nsIWebBrowserChrome::CHROME_OPENAS_CHROME))) { | |
| 592 nsCOMPtr<nsIWindowProvider> provider = do_GetInterface(parentTreeOwner); | |
| 593 if (provider) { | |
| 594 NS_ASSERTION(aParent, "We've _got_ to have a parent here!"); | |
| 595 | |
| 596 nsCOMPtr<nsIDOMWindow> newWindow; | |
| 597 rv = provider->ProvideWindow(aParent, chromeFlags, aCalledFromJS, | |
| 598 sizeSpec.PositionSpecified(), | |
| 599 sizeSpec.SizeSpecified(), | |
| 600 uriToLoad, name, features, &windowIsNew, | |
| 601 getter_AddRefs(newWindow)); | |
| 602 | |
| 603 if (NS_SUCCEEDED(rv)) { | |
| 604 GetWindowTreeItem(newWindow, getter_AddRefs(newDocShellItem)); | |
| 605 if (windowIsNew && newDocShellItem) { | |
| 606 // Make sure to stop any loads happening in this window that the | |
| 607 // window provider might have started. Otherwise if our caller | |
| 608 // manipulates the window it just opened and then the load | |
| 609 // completes their stuff will get blown away. | |
| 610 nsCOMPtr<nsIWebNavigation> webNav = | |
| 611 do_QueryInterface(newDocShellItem); | |
| 612 webNav->Stop(nsIWebNavigation::STOP_NETWORK); | |
| 613 } | |
| 614 } | |
| 615 else if (rv == NS_ERROR_ABORT) { | |
| 616 // NS_ERROR_ABORT means the window provider has flat-out rejected | |
| 617 // the open-window call and we should bail. Don't return an error | |
| 618 // here, because our caller may propagate that error, which might | |
| 619 // cause e.g. window.open to throw! Just return null for our out | |
| 620 // param. | |
| 621 return NS_OK; | |
| 622 } | |
| 623 } | |
| 624 } | |
| 625 } | |
| 626 | |
| 627 bool newWindowShouldBeModal = false; | |
| 628 bool parentIsModal = false; | |
| 629 if (!newDocShellItem) { | |
| 630 windowIsNew = true; | |
| 631 isNewToplevelWindow = true; | |
| 632 | |
| 633 nsCOMPtr<nsIWebBrowserChrome> parentChrome(do_GetInterface(parentTreeOwner)); | |
| 634 | |
| 635 // is the parent (if any) modal? if so, we must be, too. | |
| 636 bool weAreModal = (chromeFlags & nsIWebBrowserChrome::CHROME_MODAL) != 0; | |
| 637 newWindowShouldBeModal = weAreModal; | |
| 638 if (!weAreModal && parentChrome) { | |
| 639 parentChrome->IsWindowModal(&weAreModal); | |
| 640 parentIsModal = weAreModal; | |
| 641 } | |
| 642 | |
| 643 if (weAreModal) { | |
| 644 windowIsModal = true; | |
| 645 // in case we added this because weAreModal | |
| 646 chromeFlags |= nsIWebBrowserChrome::CHROME_MODAL | | |
| 647 nsIWebBrowserChrome::CHROME_DEPENDENT; | |
| 648 } | |
| 649 | |
| 650 // Make sure to not create modal windows if our parent is invisible and | |
| 651 // isn't a chrome window. Otherwise we can end up in a bizarre situation | |
| 652 // where we can't shut down because an invisible window is open. If | |
| 653 // someone tries to do this, throw. | |
| 654 if (!hasChromeParent && (chromeFlags & nsIWebBrowserChrome::CHROME_MODAL)) { | |
| 655 nsCOMPtr<nsIBaseWindow> parentWindow(do_GetInterface(parentTreeOwner)); | |
| 656 nsCOMPtr<nsIWidget> parentWidget; | |
| 657 if (parentWindow) | |
| 658 parentWindow->GetMainWidget(getter_AddRefs(parentWidget)); | |
| 659 // NOTE: the logic for this visibility check is duplicated in | |
| 660 // nsIDOMWindowUtils::isParentWindowMainWidgetVisible - if we change | |
| 661 // how a window is determined "visible" in this context then we should | |
| 662 // also adjust that attribute and/or any consumers of it... | |
| 663 if (parentWidget && !parentWidget->IsVisible()) | |
| 664 return NS_ERROR_NOT_AVAILABLE; | |
| 665 } | |
| 666 | |
| 667 NS_ASSERTION(mWindowCreator, | |
| 668 "attempted to open a new window with no WindowCreator"); | |
| 669 rv = NS_ERROR_FAILURE; | |
| 670 if (mWindowCreator) { | |
| 671 nsCOMPtr<nsIWebBrowserChrome> newChrome; | |
| 672 | |
| 673 /* If the window creator is an nsIWindowCreator2, we can give it | |
| 674 some hints. The only hint at this time is whether the opening window | |
| 675 is in a situation that's likely to mean this is an unrequested | |
| 676 popup window we're creating. However we're not completely honest: | |
| 677 we clear that indicator if the opener is chrome, so that the | |
| 678 downstream consumer can treat the indicator to mean simply | |
| 679 that the new window is subject to popup control. */ | |
| 680 nsCOMPtr<nsIWindowCreator2> windowCreator2(do_QueryInterface(mWindowCreator)); | |
| 681 if (windowCreator2) { | |
| 682 uint32_t contextFlags = 0; | |
| 683 bool popupConditions = false; | |
| 684 | |
| 685 // is the parent under popup conditions? | |
| 686 if (parentWindow) { | |
| 687 popupConditions = parentWindow->IsLoadingOrRunningTimeout(); | |
| 688 } | |
| 689 | |
| 690 // chrome is always allowed, so clear the flag if the opener is chrome | |
| 691 if (popupConditions) { | |
| 692 popupConditions = !isCallerChrome; | |
| 693 } | |
| 694 | |
| 695 if (popupConditions) | |
| 696 contextFlags |= nsIWindowCreator2::PARENT_IS_LOADING_OR_RUNNING_TIMEOUT; | |
| 697 | |
| 698 bool cancel = false; | |
| 699 rv = windowCreator2->CreateChromeWindow2(parentChrome, chromeFlags, | |
| 700 contextFlags, uriToLoad, | |
| 701 &cancel, | |
| 702 getter_AddRefs(newChrome)); | |
| 703 if (NS_SUCCEEDED(rv) && cancel) { | |
| 704 newChrome = 0; // just in case | |
| 705 rv = NS_ERROR_ABORT; | |
| 706 } | |
| 707 } | |
| 708 else | |
| 709 rv = mWindowCreator->CreateChromeWindow(parentChrome, chromeFlags, | |
| 710 getter_AddRefs(newChrome)); | |
| 711 if (newChrome) { | |
| 712 /* It might be a chrome nsXULWindow, in which case it won't have | |
| 713 an nsIDOMWindow (primary content shell). But in that case, it'll | |
| 714 be able to hand over an nsIDocShellTreeItem directly. */ | |
| 715 nsCOMPtr<nsIDOMWindow> newWindow(do_GetInterface(newChrome)); | |
| 716 if (newWindow) | |
| 717 GetWindowTreeItem(newWindow, getter_AddRefs(newDocShellItem)); | |
| 718 if (!newDocShellItem) | |
| 719 newDocShellItem = do_GetInterface(newChrome); | |
| 720 if (!newDocShellItem) | |
| 721 rv = NS_ERROR_FAILURE; | |
| 722 } | |
| 723 } | |
| 724 } | |
| 725 | |
| 726 // better have a window to use by this point | |
| 727 if (!newDocShellItem) | |
| 728 return rv; | |
| 729 | |
| 730 nsCOMPtr<nsIDocShell> newDocShell(do_QueryInterface(newDocShellItem)); | |
| 731 NS_ENSURE_TRUE(newDocShell, NS_ERROR_UNEXPECTED); | |
| 732 | |
| 733 // Set up sandboxing attributes if the window is new. | |
| 734 // The flags can only be non-zero for new windows. | |
| 735 if (activeDocsSandboxFlags != 0) { | |
| 736 newDocShell->SetSandboxFlags(activeDocsSandboxFlags); | |
| 737 if (parentWindow) { | |
| 738 newDocShell-> | |
| 739 SetOnePermittedSandboxedNavigator(parentWindow->GetDocShell()); | |
| 740 } | |
| 741 } | |
| 742 | |
| 743 rv = ReadyOpenedDocShellItem(newDocShellItem, aParent, windowIsNew, _retval); | |
| 744 if (NS_FAILED(rv)) | |
| 745 return rv; | |
| 746 | |
| 747 /* disable persistence of size/position in popups (determined by | |
| 748 determining whether the features parameter specifies width or height | |
| 749 in any way). We consider any overriding of the window's size or position | |
| 750 in the open call as disabling persistence of those attributes. | |
| 751 Popup windows (which should not persist size or position) generally set | |
| 752 the size. */ | |
| 753 if (isNewToplevelWindow) { | |
| 754 /* at the moment, the strings "height=" or "width=" never happen | |
| 755 outside a size specification, so we can do this the Q&D way. */ | |
| 756 | |
| 757 if (PL_strcasestr(features.get(), "width=") || PL_strcasestr(features.get(), "height=")) { | |
| 758 | |
| 759 nsCOMPtr<nsIDocShellTreeOwner> newTreeOwner; | |
| 760 newDocShellItem->GetTreeOwner(getter_AddRefs(newTreeOwner)); | |
| 761 if (newTreeOwner) | |
| 762 newTreeOwner->SetPersistence(false, false, false); | |
| 763 } | |
| 764 } | |
| 765 | |
| 766 if ((aDialog || windowIsModalContentDialog) && argv) { | |
| 767 // Set the args on the new window. | |
| 768 nsCOMPtr<nsPIDOMWindow> piwin(do_QueryInterface(*_retval)); | |
| 769 NS_ENSURE_TRUE(piwin, NS_ERROR_UNEXPECTED); | |
| 770 | |
| 771 rv = piwin->SetArguments(argv); | |
| 772 NS_ENSURE_SUCCESS(rv, rv); | |
| 773 } | |
| 774 | |
| 775 /* allow a window that we found by name to keep its name (important for cases | |
| 776 like _self where the given name is different (and invalid)). Also, _blank | |
| 777 is not a window name. */ | |
| 778 if (windowNeedsName) { | |
| 779 if (nameSpecified && !name.LowerCaseEqualsLiteral("_blank")) { | |
| 780 newDocShellItem->SetName(name); | |
| 781 } else { | |
| 782 newDocShellItem->SetName(EmptyString()); | |
| 783 } | |
| 784 } | |
| 785 | |
| 786 // Now we have to set the right opener principal on the new window. Note | |
| 787 // that we have to do this _before_ starting any URI loads, thanks to the | |
| 788 // sync nature of javascript: loads. Since this is the only place where we | |
| 789 // set said opener principal, we need to do it for all URIs, including | |
| 790 // chrome ones. So to deal with the mess that is bug 79775, just press on in | |
| 791 // a reasonable way even if GetSubjectPrincipal fails. In that case, just | |
| 792 // use a null subjectPrincipal. | |
| 793 nsCOMPtr<nsIPrincipal> subjectPrincipal; | |
| 794 if (NS_FAILED(sm->GetSubjectPrincipal(getter_AddRefs(subjectPrincipal)))) { | |
| 795 subjectPrincipal = nullptr; | |
| 796 } | |
| 797 | |
| 798 if (windowIsNew) { | |
| 799 // Now set the opener principal on the new window. Note that we need to do | |
| 800 // this no matter whether we were opened from JS; if there is nothing on | |
| 801 // the JS stack, just use the principal of our parent window. In those | |
| 802 // cases we do _not_ set the parent window principal as the owner of the | |
| 803 // load--since we really don't know who the owner is, just leave it null. | |
| 804 nsCOMPtr<nsPIDOMWindow> newWindow = do_QueryInterface(*_retval); | |
| 805 #ifdef DEBUG | |
| 806 nsCOMPtr<nsPIDOMWindow> newDebugWindow = do_GetInterface(newDocShell); | |
| 807 NS_ASSERTION(newWindow == newDebugWindow, "Different windows??"); | |
| 808 #endif | |
| 809 // The principal of the initial about:blank document gets set up in | |
| 810 // nsWindowWatcher::AddWindow. Make sure to call it. In the common case | |
| 811 // this call already happened when the window was created, but | |
| 812 // SetInitialPrincipalToSubject is safe to call multiple times. | |
| 813 if (newWindow) { | |
| 814 newWindow->SetInitialPrincipalToSubject(); | |
| 815 } | |
| 816 } | |
| 817 | |
| 818 // If all windows should be private, make sure the new window is also | |
| 819 // private. Otherwise, see if the caller has explicitly requested a | |
| 820 // private or non-private window. | |
| 821 bool isPrivateBrowsingWindow = | |
| 822 Preferences::GetBool("browser.privatebrowsing.autostart") || | |
| 823 (!!(chromeFlags & nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW) && | |
| 824 !(chromeFlags & nsIWebBrowserChrome::CHROME_NON_PRIVATE_WINDOW)); | |
| 825 | |
| 826 // Otherwise, propagate the privacy status of the parent window, if | |
| 827 // available, to the child. | |
| 828 if (!isPrivateBrowsingWindow && | |
| 829 !(chromeFlags & nsIWebBrowserChrome::CHROME_NON_PRIVATE_WINDOW)) { | |
| 830 nsCOMPtr<nsIDocShellTreeItem> parentItem; | |
| 831 GetWindowTreeItem(aParent, getter_AddRefs(parentItem)); | |
| 832 nsCOMPtr<nsILoadContext> parentContext = do_QueryInterface(parentItem); | |
| 833 if (parentContext) { | |
| 834 isPrivateBrowsingWindow = parentContext->UsePrivateBrowsing(); | |
| 835 } | |
| 836 } | |
| 837 | |
| 838 // We rely on CalculateChromeFlags to decide whether remote (out-of-process) | |
| 839 // tabs should be used. | |
| 840 bool isRemoteWindow = | |
| 841 !!(chromeFlags & nsIWebBrowserChrome::CHROME_REMOTE_WINDOW); | |
| 842 | |
| 843 if (isNewToplevelWindow) { | |
| 844 nsCOMPtr<nsIDocShellTreeItem> childRoot; | |
| 845 newDocShellItem->GetRootTreeItem(getter_AddRefs(childRoot)); | |
| 846 nsCOMPtr<nsILoadContext> childContext = do_QueryInterface(childRoot); | |
| 847 if (childContext) { | |
| 848 childContext->SetPrivateBrowsing(isPrivateBrowsingWindow); | |
| 849 childContext->SetRemoteTabs(isRemoteWindow); | |
| 850 } | |
| 851 } else if (windowIsNew) { | |
| 852 nsCOMPtr<nsILoadContext> childContext = do_QueryInterface(newDocShellItem); | |
| 853 if (childContext) { | |
| 854 childContext->SetPrivateBrowsing(isPrivateBrowsingWindow); | |
| 855 childContext->SetRemoteTabs(isRemoteWindow); | |
| 856 } | |
| 857 } | |
| 858 | |
| 859 nsCOMPtr<nsIDocShellLoadInfo> loadInfo; | |
| 860 if (uriToLoad && aNavigate) { // get the script principal and pass it to docshell | |
| 861 | |
| 862 // The historical ordering of attempts here is: | |
| 863 // (1) Stack-top cx. | |
| 864 // (2) cx associated with aParent. | |
| 865 // (3) Safe JSContext. | |
| 866 // | |
| 867 // We could just use an AutoJSContext here if it weren't for (2), which | |
| 868 // is probably nonsensical anyway. But we preserve the old semantics for | |
| 869 // now, because this is part of a large patch where we don't want to risk | |
| 870 // subtle behavioral modifications. | |
| 871 cx = nsContentUtils::GetCurrentJSContext(); | |
| 872 nsCxPusher pusher; | |
| 873 if (!cx) { | |
| 874 cx = GetJSContextFromWindow(aParent); | |
| 875 if (!cx) | |
| 876 cx = nsContentUtils::GetSafeJSContext(); | |
| 877 pusher.Push(cx); | |
| 878 } | |
| 879 | |
| 880 newDocShell->CreateLoadInfo(getter_AddRefs(loadInfo)); | |
| 881 NS_ENSURE_TRUE(loadInfo, NS_ERROR_FAILURE); | |
| 882 | |
| 883 if (subjectPrincipal) { | |
| 884 loadInfo->SetOwner(subjectPrincipal); | |
| 885 } | |
| 886 | |
| 887 // Set the new window's referrer from the calling context's document: | |
| 888 | |
| 889 // get its document, if any | |
| 890 JSContext* ccx = nsContentUtils::GetCurrentJSContext(); | |
| 891 if (ccx) { | |
| 892 nsIScriptGlobalObject *sgo = nsJSUtils::GetDynamicScriptGlobal(ccx); | |
| 893 | |
| 894 nsCOMPtr<nsPIDOMWindow> w(do_QueryInterface(sgo)); | |
| 895 if (w) { | |
| 896 /* use the URL from the *extant* document, if any. The usual accessor | |
| 897 GetDocument will synchronously create an about:blank document if | |
| 898 it has no better answer, and we only care about a real document. | |
| 899 Also using GetDocument to force document creation seems to | |
| 900 screw up focus in the hidden window; see bug 36016. | |
| 901 */ | |
| 902 nsCOMPtr<nsIDocument> doc = w->GetExtantDoc(); | |
| 903 if (doc) { | |
| 904 // Set the referrer | |
| 905 loadInfo->SetReferrer(doc->GetDocumentURI()); | |
| 906 } | |
| 907 } | |
| 908 } | |
| 909 } | |
| 910 | |
| 911 if (isNewToplevelWindow) { | |
| 912 // Notify observers that the window is open and ready. | |
| 913 // The window has not yet started to load a document. | |
| 914 nsCOMPtr<nsIObserverService> obsSvc = | |
| 915 mozilla::services::GetObserverService(); | |
| 916 if (obsSvc) | |
| 917 obsSvc->NotifyObservers(*_retval, "toplevel-window-ready", nullptr); | |
| 918 } | |
| 919 | |
| 920 if (uriToLoad && aNavigate) { | |
| 921 newDocShell->LoadURI(uriToLoad, | |
| 922 loadInfo, | |
| 923 windowIsNew | |
| 924 ? static_cast<uint32_t>(nsIWebNavigation::LOAD_FLAGS_FIRST_LOAD) | |
| 925 : static_cast<uint32_t>(nsIWebNavigation::LOAD_FLAGS_NONE), | |
| 926 true); | |
| 927 } | |
| 928 | |
| 929 // Copy the current session storage for the current domain. | |
| 930 if (subjectPrincipal && parentDocShell) { | |
| 931 nsCOMPtr<nsIDOMStorageManager> parentStorageManager = do_QueryInterface(parentDocShell); | |
| 932 nsCOMPtr<nsIDOMStorageManager> newStorageManager = do_QueryInterface(newDocShell); | |
| 933 | |
| 934 if (parentStorageManager && newStorageManager) { | |
| 935 nsCOMPtr<nsIDOMStorage> storage; | |
| 936 parentStorageManager->GetStorageForFirstParty(uriToLoad, subjectPrincipal, | |
| 937 isPrivateBrowsingWindow, getter_AddRefs(storage)); | |
| 938 if (storage) | |
| 939 newStorageManager->CloneStorage(storage); | |
| 940 } | |
| 941 } | |
| 942 | |
| 943 if (isNewToplevelWindow) | |
| 944 SizeOpenedDocShellItem(newDocShellItem, aParent, sizeSpec); | |
| 945 | |
| 946 // XXXbz isn't windowIsModal always true when windowIsModalContentDialog? | |
| 947 if (windowIsModal || windowIsModalContentDialog) { | |
| 948 nsCOMPtr<nsIDocShellTreeOwner> newTreeOwner; | |
| 949 newDocShellItem->GetTreeOwner(getter_AddRefs(newTreeOwner)); | |
| 950 nsCOMPtr<nsIWebBrowserChrome> newChrome(do_GetInterface(newTreeOwner)); | |
| 951 | |
| 952 // Throw an exception here if no web browser chrome is available, | |
| 953 // we need that to show a modal window. | |
| 954 NS_ENSURE_TRUE(newChrome, NS_ERROR_NOT_AVAILABLE); | |
| 955 | |
| 956 // Dispatch dialog events etc, but we only want to do that if | |
| 957 // we're opening a modal content window (the helper classes are | |
| 958 // no-ops if given no window), for chrome dialogs we don't want to | |
| 959 // do any of that (it's done elsewhere for us). | |
| 960 // Make sure we maintain the state on an outer window, because | |
| 961 // that's where it lives; inner windows assert if you try to | |
| 962 // maintain the state on them. | |
| 963 nsAutoWindowStateHelper windowStateHelper( | |
| 964 parentWindow ? parentWindow->GetOuterWindow() : nullptr); | |
| 965 | |
| 966 if (!windowStateHelper.DefaultEnabled()) { | |
| 967 // Default to cancel not opening the modal window. | |
| 968 NS_RELEASE(*_retval); | |
| 969 | |
| 970 return NS_OK; | |
| 971 } | |
| 972 | |
| 973 | |
| 974 if (!newWindowShouldBeModal && parentIsModal) { | |
| 975 nsCOMPtr<nsIBaseWindow> parentWindow(do_GetInterface(newTreeOwner)); | |
| 976 if (parentWindow) { | |
| 977 nsCOMPtr<nsIWidget> parentWidget; | |
| 978 parentWindow->GetMainWidget(getter_AddRefs(parentWidget)); | |
| 979 if (parentWidget) { | |
| 980 parentWidget->SetModal(true); | |
| 981 } | |
| 982 } | |
| 983 } else { | |
| 984 // Reset popup state while opening a modal dialog, and firing | |
| 985 // events about the dialog, to prevent the current state from | |
| 986 // being active the whole time a modal dialog is open. | |
| 987 nsAutoPopupStatePusher popupStatePusher(openAbused); | |
| 988 | |
| 989 newChrome->ShowAsModal(); | |
| 990 } | |
| 991 } | |
| 992 | |
| 993 return NS_OK; | |
| 994 } | |
| 995 | |
| 996 NS_IMETHODIMP | |
| 997 nsWindowWatcher::RegisterNotification(nsIObserver *aObserver) | |
| 998 { | |
| 999 // just a convenience method; it delegates to nsIObserverService | |
| 1000 | |
| 1001 if (!aObserver) | |
| 1002 return NS_ERROR_INVALID_ARG; | |
| 1003 | |
| 1004 nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService(); | |
| 1005 if (!os) | |
| 1006 return NS_ERROR_FAILURE; | |
| 1007 | |
| 1008 nsresult rv = os->AddObserver(aObserver, "domwindowopened", false); | |
| 1009 if (NS_SUCCEEDED(rv)) | |
| 1010 rv = os->AddObserver(aObserver, "domwindowclosed", false); | |
| 1011 | |
| 1012 return rv; | |
| 1013 } | |
| 1014 | |
| 1015 NS_IMETHODIMP | |
| 1016 nsWindowWatcher::UnregisterNotification(nsIObserver *aObserver) | |
| 1017 { | |
| 1018 // just a convenience method; it delegates to nsIObserverService | |
| 1019 | |
| 1020 if (!aObserver) | |
| 1021 return NS_ERROR_INVALID_ARG; | |
| 1022 | |
| 1023 nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService(); | |
| 1024 if (!os) | |
| 1025 return NS_ERROR_FAILURE; | |
| 1026 | |
| 1027 os->RemoveObserver(aObserver, "domwindowopened"); | |
| 1028 os->RemoveObserver(aObserver, "domwindowclosed"); | |
| 1029 | |
| 1030 return NS_OK; | |
| 1031 } | |
| 1032 | |
| 1033 NS_IMETHODIMP | |
| 1034 nsWindowWatcher::GetWindowEnumerator(nsISimpleEnumerator** _retval) | |
| 1035 { | |
| 1036 if (!_retval) | |
| 1037 return NS_ERROR_INVALID_ARG; | |
| 1038 | |
| 1039 MutexAutoLock lock(mListLock); | |
| 1040 nsWatcherWindowEnumerator *enumerator = new nsWatcherWindowEnumerator(this); | |
| 1041 if (enumerator) | |
| 1042 return CallQueryInterface(enumerator, _retval); | |
| 1043 | |
| 1044 return NS_ERROR_OUT_OF_MEMORY; | |
| 1045 } | |
| 1046 | |
| 1047 NS_IMETHODIMP | |
| 1048 nsWindowWatcher::GetNewPrompter(nsIDOMWindow *aParent, nsIPrompt **_retval) | |
| 1049 { | |
| 1050 // This is for backwards compat only. Callers should just use the prompt service directly. | |
| 1051 nsresult rv; | |
| 1052 nsCOMPtr<nsIPromptFactory> factory = do_GetService("@mozilla.org/prompter;1", &rv); | |
| 1053 NS_ENSURE_SUCCESS(rv, rv); | |
| 1054 return factory->GetPrompt(aParent, NS_GET_IID(nsIPrompt), reinterpret_cast<void**>(_retval)); | |
| 1055 } | |
| 1056 | |
| 1057 NS_IMETHODIMP | |
| 1058 nsWindowWatcher::GetNewAuthPrompter(nsIDOMWindow *aParent, nsIAuthPrompt **_retval) | |
| 1059 { | |
| 1060 // This is for backwards compat only. Callers should just use the prompt service directly. | |
| 1061 nsresult rv; | |
| 1062 nsCOMPtr<nsIPromptFactory> factory = do_GetService("@mozilla.org/prompter;1", &rv); | |
| 1063 NS_ENSURE_SUCCESS(rv, rv); | |
| 1064 return factory->GetPrompt(aParent, NS_GET_IID(nsIAuthPrompt), reinterpret_cast<void**>(_retval)); | |
| 1065 } | |
| 1066 | |
| 1067 NS_IMETHODIMP | |
| 1068 nsWindowWatcher::GetPrompt(nsIDOMWindow *aParent, const nsIID& aIID, | |
| 1069 void **_retval) | |
| 1070 { | |
| 1071 // This is for backwards compat only. Callers should just use the prompt service directly. | |
| 1072 nsresult rv; | |
| 1073 nsCOMPtr<nsIPromptFactory> factory = do_GetService("@mozilla.org/prompter;1", &rv); | |
| 1074 NS_ENSURE_SUCCESS(rv, rv); | |
| 1075 rv = factory->GetPrompt(aParent, aIID, _retval); | |
| 1076 | |
| 1077 // Allow for an embedding implementation to not support nsIAuthPrompt2. | |
| 1078 if (rv == NS_NOINTERFACE && aIID.Equals(NS_GET_IID(nsIAuthPrompt2))) { | |
| 1079 nsCOMPtr<nsIAuthPrompt> oldPrompt; | |
| 1080 rv = factory->GetPrompt(aParent, | |
| 1081 NS_GET_IID(nsIAuthPrompt), | |
| 1082 getter_AddRefs(oldPrompt)); | |
| 1083 NS_ENSURE_SUCCESS(rv, rv); | |
| 1084 | |
| 1085 NS_WrapAuthPrompt(oldPrompt, reinterpret_cast<nsIAuthPrompt2**>(_retval)); | |
| 1086 if (!*_retval) | |
| 1087 rv = NS_ERROR_NOT_AVAILABLE; | |
| 1088 } | |
| 1089 return rv; | |
| 1090 } | |
| 1091 | |
| 1092 NS_IMETHODIMP | |
| 1093 nsWindowWatcher::SetWindowCreator(nsIWindowCreator *creator) | |
| 1094 { | |
| 1095 mWindowCreator = creator; // it's an nsCOMPtr, so this is an ownership ref | |
| 1096 return NS_OK; | |
| 1097 } | |
| 1098 | |
| 1099 NS_IMETHODIMP | |
| 1100 nsWindowWatcher::HasWindowCreator(bool *result) | |
| 1101 { | |
| 1102 *result = mWindowCreator; | |
| 1103 return NS_OK; | |
| 1104 } | |
| 1105 | |
| 1106 NS_IMETHODIMP | |
| 1107 nsWindowWatcher::GetActiveWindow(nsIDOMWindow **aActiveWindow) | |
| 1108 { | |
| 1109 *aActiveWindow = nullptr; | |
| 1110 nsCOMPtr<nsIFocusManager> fm = do_GetService(FOCUSMANAGER_CONTRACTID); | |
| 1111 if (fm) | |
| 1112 return fm->GetActiveWindow(aActiveWindow); | |
| 1113 return NS_OK; | |
| 1114 } | |
| 1115 | |
| 1116 NS_IMETHODIMP | |
| 1117 nsWindowWatcher::SetActiveWindow(nsIDOMWindow *aActiveWindow) | |
| 1118 { | |
| 1119 nsCOMPtr<nsIFocusManager> fm = do_GetService(FOCUSMANAGER_CONTRACTID); | |
| 1120 if (fm) | |
| 1121 return fm->SetActiveWindow(aActiveWindow); | |
| 1122 return NS_OK; | |
| 1123 } | |
| 1124 | |
| 1125 NS_IMETHODIMP | |
| 1126 nsWindowWatcher::AddWindow(nsIDOMWindow *aWindow, nsIWebBrowserChrome *aChrome) | |
| 1127 { | |
| 1128 if (!aWindow) | |
| 1129 return NS_ERROR_INVALID_ARG; | |
| 1130 | |
| 1131 #ifdef DEBUG | |
| 1132 { | |
| 1133 nsCOMPtr<nsPIDOMWindow> win(do_QueryInterface(aWindow)); | |
| 1134 | |
| 1135 NS_ASSERTION(win->IsOuterWindow(), | |
| 1136 "Uh, the active window must be an outer window!"); | |
| 1137 } | |
| 1138 #endif | |
| 1139 | |
| 1140 { | |
| 1141 nsWatcherWindowEntry *info; | |
| 1142 MutexAutoLock lock(mListLock); | |
| 1143 | |
| 1144 // if we already have an entry for this window, adjust | |
| 1145 // its chrome mapping and return | |
| 1146 info = FindWindowEntry(aWindow); | |
| 1147 if (info) { | |
| 1148 nsCOMPtr<nsISupportsWeakReference> supportsweak(do_QueryInterface(aChrome)); | |
| 1149 if (supportsweak) { | |
| 1150 supportsweak->GetWeakReference(getter_AddRefs(info->mChromeWeak)); | |
| 1151 } else { | |
| 1152 info->mChrome = aChrome; | |
| 1153 info->mChromeWeak = 0; | |
| 1154 } | |
| 1155 return NS_OK; | |
| 1156 } | |
| 1157 | |
| 1158 // create a window info struct and add it to the list of windows | |
| 1159 info = new nsWatcherWindowEntry(aWindow, aChrome); | |
| 1160 if (!info) | |
| 1161 return NS_ERROR_OUT_OF_MEMORY; | |
| 1162 | |
| 1163 if (mOldestWindow) | |
| 1164 info->InsertAfter(mOldestWindow->mOlder); | |
| 1165 else | |
| 1166 mOldestWindow = info; | |
| 1167 } // leave the mListLock | |
| 1168 | |
| 1169 // a window being added to us signifies a newly opened window. | |
| 1170 // send notifications. | |
| 1171 nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService(); | |
| 1172 if (!os) | |
| 1173 return NS_ERROR_FAILURE; | |
| 1174 | |
| 1175 nsCOMPtr<nsISupports> domwin(do_QueryInterface(aWindow)); | |
| 1176 return os->NotifyObservers(domwin, "domwindowopened", 0); | |
| 1177 } | |
| 1178 | |
| 1179 NS_IMETHODIMP | |
| 1180 nsWindowWatcher::RemoveWindow(nsIDOMWindow *aWindow) | |
| 1181 { | |
| 1182 // find the corresponding nsWatcherWindowEntry, remove it | |
| 1183 | |
| 1184 if (!aWindow) | |
| 1185 return NS_ERROR_INVALID_ARG; | |
| 1186 | |
| 1187 nsWatcherWindowEntry *info = FindWindowEntry(aWindow); | |
| 1188 if (info) { | |
| 1189 RemoveWindow(info); | |
| 1190 return NS_OK; | |
| 1191 } | |
| 1192 NS_WARNING("requested removal of nonexistent window"); | |
| 1193 return NS_ERROR_INVALID_ARG; | |
| 1194 } | |
| 1195 | |
| 1196 nsWatcherWindowEntry * | |
| 1197 nsWindowWatcher::FindWindowEntry(nsIDOMWindow *aWindow) | |
| 1198 { | |
| 1199 // find the corresponding nsWatcherWindowEntry | |
| 1200 nsWatcherWindowEntry *info, | |
| 1201 *listEnd; | |
| 1202 #ifdef USEWEAKREFS | |
| 1203 nsresult rv; | |
| 1204 bool found; | |
| 1205 #endif | |
| 1206 | |
| 1207 info = mOldestWindow; | |
| 1208 listEnd = 0; | |
| 1209 #ifdef USEWEAKREFS | |
| 1210 rv = NS_OK; | |
| 1211 found = false; | |
| 1212 while (info != listEnd && NS_SUCCEEDED(rv)) { | |
| 1213 nsCOMPtr<nsIDOMWindow> infoWindow(do_QueryReferent(info->mWindow)); | |
| 1214 if (!infoWindow) { // clean up dangling reference, while we're here | |
| 1215 rv = RemoveWindow(info); | |
| 1216 } | |
| 1217 else if (infoWindow.get() == aWindow) | |
| 1218 return info; | |
| 1219 | |
| 1220 info = info->mYounger; | |
| 1221 listEnd = mOldestWindow; | |
| 1222 } | |
| 1223 return 0; | |
| 1224 #else | |
| 1225 while (info != listEnd) { | |
| 1226 if (info->mWindow == aWindow) | |
| 1227 return info; | |
| 1228 info = info->mYounger; | |
| 1229 listEnd = mOldestWindow; | |
| 1230 } | |
| 1231 return 0; | |
| 1232 #endif | |
| 1233 } | |
| 1234 | |
| 1235 nsresult nsWindowWatcher::RemoveWindow(nsWatcherWindowEntry *inInfo) | |
| 1236 { | |
| 1237 uint32_t ctr, | |
| 1238 count = mEnumeratorList.Length(); | |
| 1239 | |
| 1240 { | |
| 1241 // notify the enumerators | |
| 1242 MutexAutoLock lock(mListLock); | |
| 1243 for (ctr = 0; ctr < count; ++ctr) | |
| 1244 mEnumeratorList[ctr]->WindowRemoved(inInfo); | |
| 1245 | |
| 1246 // remove the element from the list | |
| 1247 if (inInfo == mOldestWindow) | |
| 1248 mOldestWindow = inInfo->mYounger == mOldestWindow ? 0 : inInfo->mYounger; | |
| 1249 inInfo->Unlink(); | |
| 1250 } | |
| 1251 | |
| 1252 // a window being removed from us signifies a newly closed window. | |
| 1253 // send notifications. | |
| 1254 nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService(); | |
| 1255 if (os) { | |
| 1256 #ifdef USEWEAKREFS | |
| 1257 nsCOMPtr<nsISupports> domwin(do_QueryReferent(inInfo->mWindow)); | |
| 1258 if (domwin) | |
| 1259 os->NotifyObservers(domwin, "domwindowclosed", 0); | |
| 1260 // else bummer. since the window is gone, there's nothing to notify with. | |
| 1261 #else | |
| 1262 nsCOMPtr<nsISupports> domwin(do_QueryInterface(inInfo->mWindow)); | |
| 1263 os->NotifyObservers(domwin, "domwindowclosed", 0); | |
| 1264 #endif | |
| 1265 } | |
| 1266 | |
| 1267 delete inInfo; | |
| 1268 return NS_OK; | |
| 1269 } | |
| 1270 | |
| 1271 NS_IMETHODIMP | |
| 1272 nsWindowWatcher::GetChromeForWindow(nsIDOMWindow *aWindow, nsIWebBrowserChrome **_retval) | |
| 1273 { | |
| 1274 if (!aWindow || !_retval) | |
| 1275 return NS_ERROR_INVALID_ARG; | |
| 1276 *_retval = 0; | |
| 1277 | |
| 1278 MutexAutoLock lock(mListLock); | |
| 1279 nsWatcherWindowEntry *info = FindWindowEntry(aWindow); | |
| 1280 if (info) { | |
| 1281 if (info->mChromeWeak != nullptr) { | |
| 1282 return info->mChromeWeak-> | |
| 1283 QueryReferent(NS_GET_IID(nsIWebBrowserChrome), | |
| 1284 reinterpret_cast<void**>(_retval)); | |
| 1285 } | |
| 1286 *_retval = info->mChrome; | |
| 1287 NS_IF_ADDREF(*_retval); | |
| 1288 } | |
| 1289 return NS_OK; | |
| 1290 } | |
| 1291 | |
| 1292 NS_IMETHODIMP | |
| 1293 nsWindowWatcher::GetWindowByName(const char16_t *aTargetName, | |
| 1294 nsIDOMWindow *aCurrentWindow, | |
| 1295 nsIDOMWindow **aResult) | |
| 1296 { | |
| 1297 if (!aResult) { | |
| 1298 return NS_ERROR_INVALID_ARG; | |
| 1299 } | |
| 1300 | |
| 1301 *aResult = nullptr; | |
| 1302 | |
| 1303 nsCOMPtr<nsIDocShellTreeItem> treeItem; | |
| 1304 | |
| 1305 nsCOMPtr<nsIDocShellTreeItem> startItem; | |
| 1306 GetWindowTreeItem(aCurrentWindow, getter_AddRefs(startItem)); | |
| 1307 if (startItem) { | |
| 1308 // Note: original requestor is null here, per idl comments | |
| 1309 startItem->FindItemWithName(aTargetName, nullptr, nullptr, | |
| 1310 getter_AddRefs(treeItem)); | |
| 1311 } | |
| 1312 else { | |
| 1313 // Note: original requestor is null here, per idl comments | |
| 1314 FindItemWithName(aTargetName, nullptr, nullptr, getter_AddRefs(treeItem)); | |
| 1315 } | |
| 1316 | |
| 1317 nsCOMPtr<nsIDOMWindow> domWindow = do_GetInterface(treeItem); | |
| 1318 domWindow.swap(*aResult); | |
| 1319 | |
| 1320 return NS_OK; | |
| 1321 } | |
| 1322 | |
| 1323 bool | |
| 1324 nsWindowWatcher::AddEnumerator(nsWatcherWindowEnumerator* inEnumerator) | |
| 1325 { | |
| 1326 // (requires a lock; assumes it's called by someone holding the lock) | |
| 1327 return mEnumeratorList.AppendElement(inEnumerator) != nullptr; | |
| 1328 } | |
| 1329 | |
| 1330 bool | |
| 1331 nsWindowWatcher::RemoveEnumerator(nsWatcherWindowEnumerator* inEnumerator) | |
| 1332 { | |
| 1333 // (requires a lock; assumes it's called by someone holding the lock) | |
| 1334 return mEnumeratorList.RemoveElement(inEnumerator); | |
| 1335 } | |
| 1336 | |
| 1337 nsresult | |
| 1338 nsWindowWatcher::URIfromURL(const char *aURL, | |
| 1339 nsIDOMWindow *aParent, | |
| 1340 nsIURI **aURI) | |
| 1341 { | |
| 1342 nsCOMPtr<nsIDOMWindow> baseWindow; | |
| 1343 | |
| 1344 /* build the URI relative to the calling JS Context, if any. | |
| 1345 (note this is the same context used to make the security check | |
| 1346 in nsGlobalWindow.cpp.) */ | |
| 1347 JSContext *cx = nsContentUtils::GetCurrentJSContext(); | |
| 1348 if (cx) { | |
| 1349 nsIScriptContext *scriptcx = nsJSUtils::GetDynamicScriptContext(cx); | |
| 1350 if (scriptcx) { | |
| 1351 baseWindow = do_QueryInterface(scriptcx->GetGlobalObject()); | |
| 1352 } | |
| 1353 } | |
| 1354 | |
| 1355 // failing that, build it relative to the parent window, if possible | |
| 1356 if (!baseWindow) | |
| 1357 baseWindow = aParent; | |
| 1358 | |
| 1359 // failing that, use the given URL unmodified. It had better not be relative. | |
| 1360 | |
| 1361 nsIURI *baseURI = nullptr; | |
| 1362 | |
| 1363 // get baseWindow's document URI | |
| 1364 if (baseWindow) { | |
| 1365 nsCOMPtr<nsIDOMDocument> domDoc; | |
| 1366 baseWindow->GetDocument(getter_AddRefs(domDoc)); | |
| 1367 if (domDoc) { | |
| 1368 nsCOMPtr<nsIDocument> doc; | |
| 1369 doc = do_QueryInterface(domDoc); | |
| 1370 if (doc) { | |
| 1371 baseURI = doc->GetDocBaseURI(); | |
| 1372 } | |
| 1373 } | |
| 1374 } | |
| 1375 | |
| 1376 // build and return the absolute URI | |
| 1377 return NS_NewURI(aURI, aURL, baseURI); | |
| 1378 } | |
| 1379 | |
| 1380 #define NS_CALCULATE_CHROME_FLAG_FOR(feature, flag) \ | |
| 1381 prefBranch->GetBoolPref(feature, &forceEnable); \ | |
| 1382 if (forceEnable && !(aDialog && isCallerChrome) && \ | |
| 1383 !(isCallerChrome && aHasChromeParent) && !aChromeURL) { \ | |
| 1384 chromeFlags |= flag; \ | |
| 1385 } else { \ | |
| 1386 chromeFlags |= WinHasOption(aFeatures, feature, \ | |
| 1387 0, &presenceFlag) \ | |
| 1388 ? flag : 0; \ | |
| 1389 } | |
| 1390 | |
| 1391 /** | |
| 1392 * Calculate the chrome bitmask from a string list of features. | |
| 1393 * @param aParent the opener window | |
| 1394 * @param aFeatures a string containing a list of named chrome features | |
| 1395 * @param aNullFeatures true if aFeatures was a null pointer (which fact | |
| 1396 * is lost by its conversion to a string in the caller) | |
| 1397 * @param aDialog affects the assumptions made about unnamed features | |
| 1398 * @return the chrome bitmask | |
| 1399 */ | |
| 1400 // static | |
| 1401 uint32_t nsWindowWatcher::CalculateChromeFlags(nsIDOMWindow *aParent, | |
| 1402 const char *aFeatures, | |
| 1403 bool aFeaturesSpecified, | |
| 1404 bool aDialog, | |
| 1405 bool aChromeURL, | |
| 1406 bool aHasChromeParent) | |
| 1407 { | |
| 1408 if(!aFeaturesSpecified || !aFeatures) { | |
| 1409 if(aDialog) | |
| 1410 return nsIWebBrowserChrome::CHROME_ALL | | |
| 1411 nsIWebBrowserChrome::CHROME_OPENAS_DIALOG | | |
| 1412 nsIWebBrowserChrome::CHROME_OPENAS_CHROME; | |
| 1413 else | |
| 1414 return nsIWebBrowserChrome::CHROME_ALL; | |
| 1415 } | |
| 1416 | |
| 1417 /* This function has become complicated since browser windows and | |
| 1418 dialogs diverged. The difference is, browser windows assume all | |
| 1419 chrome not explicitly mentioned is off, if the features string | |
| 1420 is not null. Exceptions are some OS border chrome new with Mozilla. | |
| 1421 Dialogs interpret a (mostly) empty features string to mean | |
| 1422 "OS's choice," and also support an "all" flag explicitly disallowed | |
| 1423 in the standards-compliant window.(normal)open. */ | |
| 1424 | |
| 1425 uint32_t chromeFlags = 0; | |
| 1426 bool presenceFlag = false; | |
| 1427 | |
| 1428 chromeFlags = nsIWebBrowserChrome::CHROME_WINDOW_BORDERS; | |
| 1429 if (aDialog && WinHasOption(aFeatures, "all", 0, &presenceFlag)) | |
| 1430 chromeFlags = nsIWebBrowserChrome::CHROME_ALL; | |
| 1431 | |
| 1432 /* Next, allow explicitly named options to override the initial settings */ | |
| 1433 | |
| 1434 bool isCallerChrome = nsContentUtils::IsCallerChrome(); | |
| 1435 | |
| 1436 // Determine whether the window is a private browsing window | |
| 1437 if (isCallerChrome) { | |
| 1438 chromeFlags |= WinHasOption(aFeatures, "private", 0, &presenceFlag) ? | |
| 1439 nsIWebBrowserChrome::CHROME_PRIVATE_WINDOW : 0; | |
| 1440 chromeFlags |= WinHasOption(aFeatures, "non-private", 0, &presenceFlag) ? | |
| 1441 nsIWebBrowserChrome::CHROME_NON_PRIVATE_WINDOW : 0; | |
| 1442 } | |
| 1443 | |
| 1444 // Determine whether the window should have remote tabs. | |
| 1445 if (isCallerChrome) { | |
| 1446 bool remote; | |
| 1447 if (Preferences::GetBool("browser.tabs.remote.autostart")) { | |
| 1448 remote = !WinHasOption(aFeatures, "non-remote", 0, &presenceFlag); | |
| 1449 } else { | |
| 1450 remote = WinHasOption(aFeatures, "remote", 0, &presenceFlag); | |
| 1451 } | |
| 1452 if (remote) { | |
| 1453 chromeFlags |= nsIWebBrowserChrome::CHROME_REMOTE_WINDOW; | |
| 1454 } | |
| 1455 } | |
| 1456 | |
| 1457 nsresult rv; | |
| 1458 | |
| 1459 nsCOMPtr<nsIPrefBranch> prefBranch; | |
| 1460 nsCOMPtr<nsIPrefService> prefs = do_GetService(NS_PREFSERVICE_CONTRACTID, &rv); | |
| 1461 NS_ENSURE_SUCCESS(rv, true); | |
| 1462 | |
| 1463 rv = prefs->GetBranch("dom.disable_window_open_feature.", getter_AddRefs(prefBranch)); | |
| 1464 NS_ENSURE_SUCCESS(rv, true); | |
| 1465 | |
| 1466 bool forceEnable = false; | |
| 1467 | |
| 1468 NS_CALCULATE_CHROME_FLAG_FOR("titlebar", | |
| 1469 nsIWebBrowserChrome::CHROME_TITLEBAR); | |
| 1470 NS_CALCULATE_CHROME_FLAG_FOR("close", | |
| 1471 nsIWebBrowserChrome::CHROME_WINDOW_CLOSE); | |
| 1472 NS_CALCULATE_CHROME_FLAG_FOR("toolbar", | |
| 1473 nsIWebBrowserChrome::CHROME_TOOLBAR); | |
| 1474 NS_CALCULATE_CHROME_FLAG_FOR("location", | |
| 1475 nsIWebBrowserChrome::CHROME_LOCATIONBAR); | |
| 1476 NS_CALCULATE_CHROME_FLAG_FOR("personalbar", | |
| 1477 nsIWebBrowserChrome::CHROME_PERSONAL_TOOLBAR); | |
| 1478 NS_CALCULATE_CHROME_FLAG_FOR("status", | |
| 1479 nsIWebBrowserChrome::CHROME_STATUSBAR); | |
| 1480 NS_CALCULATE_CHROME_FLAG_FOR("menubar", | |
| 1481 nsIWebBrowserChrome::CHROME_MENUBAR); | |
| 1482 NS_CALCULATE_CHROME_FLAG_FOR("scrollbars", | |
| 1483 nsIWebBrowserChrome::CHROME_SCROLLBARS); | |
| 1484 NS_CALCULATE_CHROME_FLAG_FOR("resizable", | |
| 1485 nsIWebBrowserChrome::CHROME_WINDOW_RESIZE); | |
| 1486 NS_CALCULATE_CHROME_FLAG_FOR("minimizable", | |
| 1487 nsIWebBrowserChrome::CHROME_WINDOW_MIN); | |
| 1488 | |
| 1489 chromeFlags |= WinHasOption(aFeatures, "popup", 0, &presenceFlag) | |
| 1490 ? nsIWebBrowserChrome::CHROME_WINDOW_POPUP : 0; | |
| 1491 | |
| 1492 /* OK. | |
| 1493 Normal browser windows, in spite of a stated pattern of turning off | |
| 1494 all chrome not mentioned explicitly, will want the new OS chrome (window | |
| 1495 borders, titlebars, closebox) on, unless explicitly turned off. | |
| 1496 Dialogs, on the other hand, take the absence of any explicit settings | |
| 1497 to mean "OS' choice." */ | |
| 1498 | |
| 1499 // default titlebar and closebox to "on," if not mentioned at all | |
| 1500 if (!(chromeFlags & nsIWebBrowserChrome::CHROME_WINDOW_POPUP)) { | |
| 1501 if (!PL_strcasestr(aFeatures, "titlebar")) | |
| 1502 chromeFlags |= nsIWebBrowserChrome::CHROME_TITLEBAR; | |
| 1503 if (!PL_strcasestr(aFeatures, "close")) | |
| 1504 chromeFlags |= nsIWebBrowserChrome::CHROME_WINDOW_CLOSE; | |
| 1505 } | |
| 1506 | |
| 1507 if (aDialog && !presenceFlag) | |
| 1508 chromeFlags = nsIWebBrowserChrome::CHROME_DEFAULT; | |
| 1509 | |
| 1510 /* Finally, once all the above normal chrome has been divined, deal | |
| 1511 with the features that are more operating hints than appearance | |
| 1512 instructions. (Note modality implies dependence.) */ | |
| 1513 | |
| 1514 if (WinHasOption(aFeatures, "alwaysLowered", 0, nullptr) || | |
| 1515 WinHasOption(aFeatures, "z-lock", 0, nullptr)) | |
| 1516 chromeFlags |= nsIWebBrowserChrome::CHROME_WINDOW_LOWERED; | |
| 1517 else if (WinHasOption(aFeatures, "alwaysRaised", 0, nullptr)) | |
| 1518 chromeFlags |= nsIWebBrowserChrome::CHROME_WINDOW_RAISED; | |
| 1519 | |
| 1520 chromeFlags |= WinHasOption(aFeatures, "macsuppressanimation", 0, nullptr) ? | |
| 1521 nsIWebBrowserChrome::CHROME_MAC_SUPPRESS_ANIMATION : 0; | |
| 1522 | |
| 1523 chromeFlags |= WinHasOption(aFeatures, "chrome", 0, nullptr) ? | |
| 1524 nsIWebBrowserChrome::CHROME_OPENAS_CHROME : 0; | |
| 1525 chromeFlags |= WinHasOption(aFeatures, "extrachrome", 0, nullptr) ? | |
| 1526 nsIWebBrowserChrome::CHROME_EXTRA : 0; | |
| 1527 chromeFlags |= WinHasOption(aFeatures, "centerscreen", 0, nullptr) ? | |
| 1528 nsIWebBrowserChrome::CHROME_CENTER_SCREEN : 0; | |
| 1529 chromeFlags |= WinHasOption(aFeatures, "dependent", 0, nullptr) ? | |
| 1530 nsIWebBrowserChrome::CHROME_DEPENDENT : 0; | |
| 1531 chromeFlags |= WinHasOption(aFeatures, "modal", 0, nullptr) ? | |
| 1532 (nsIWebBrowserChrome::CHROME_MODAL | nsIWebBrowserChrome::CHROME_DEPENDENT) : 0; | |
| 1533 | |
| 1534 /* On mobile we want to ignore the dialog window feature, since the mobile UI | |
| 1535 does not provide any affordance for dialog windows. This does not interfere | |
| 1536 with dialog windows created through openDialog. */ | |
| 1537 bool disableDialogFeature = false; | |
| 1538 nsCOMPtr<nsIPrefBranch> branch = do_QueryInterface(prefs); | |
| 1539 branch->GetBoolPref("dom.disable_window_open_dialog_feature", &disableDialogFeature); | |
| 1540 | |
| 1541 bool isFullScreen = false; | |
| 1542 if (aParent) { | |
| 1543 aParent->GetFullScreen(&isFullScreen); | |
| 1544 } | |
| 1545 if (isFullScreen && !isCallerChrome) { | |
| 1546 // If the parent window is in fullscreen & the caller context is content, | |
| 1547 // dialog feature is disabled. (see bug 803675) | |
| 1548 disableDialogFeature = true; | |
| 1549 } | |
| 1550 | |
| 1551 if (!disableDialogFeature) { | |
| 1552 chromeFlags |= WinHasOption(aFeatures, "dialog", 0, nullptr) ? | |
| 1553 nsIWebBrowserChrome::CHROME_OPENAS_DIALOG : 0; | |
| 1554 } | |
| 1555 | |
| 1556 /* and dialogs need to have the last word. assume dialogs are dialogs, | |
| 1557 and opened as chrome, unless explicitly told otherwise. */ | |
| 1558 if (aDialog) { | |
| 1559 if (!PL_strcasestr(aFeatures, "dialog")) | |
| 1560 chromeFlags |= nsIWebBrowserChrome::CHROME_OPENAS_DIALOG; | |
| 1561 if (!PL_strcasestr(aFeatures, "chrome")) | |
| 1562 chromeFlags |= nsIWebBrowserChrome::CHROME_OPENAS_CHROME; | |
| 1563 } | |
| 1564 | |
| 1565 /* missing | |
| 1566 chromeFlags->copy_history | |
| 1567 */ | |
| 1568 | |
| 1569 // Check security state for use in determing window dimensions | |
| 1570 if (!isCallerChrome || !aHasChromeParent) { | |
| 1571 // If priv check fails (or if we're called from chrome, but the | |
| 1572 // parent is not a chrome window), set all elements to minimum | |
| 1573 // reqs., else leave them alone. | |
| 1574 chromeFlags |= nsIWebBrowserChrome::CHROME_TITLEBAR; | |
| 1575 chromeFlags |= nsIWebBrowserChrome::CHROME_WINDOW_CLOSE; | |
| 1576 chromeFlags &= ~nsIWebBrowserChrome::CHROME_WINDOW_LOWERED; | |
| 1577 chromeFlags &= ~nsIWebBrowserChrome::CHROME_WINDOW_RAISED; | |
| 1578 chromeFlags &= ~nsIWebBrowserChrome::CHROME_WINDOW_POPUP; | |
| 1579 /* Untrusted script is allowed to pose modal windows with a chrome | |
| 1580 scheme. This check could stand to be better. But it effectively | |
| 1581 prevents untrusted script from opening modal windows in general | |
| 1582 while still allowing alerts and the like. */ | |
| 1583 if (!aChromeURL) | |
| 1584 chromeFlags &= ~(nsIWebBrowserChrome::CHROME_MODAL | | |
| 1585 nsIWebBrowserChrome::CHROME_OPENAS_CHROME); | |
| 1586 } | |
| 1587 | |
| 1588 if (!(chromeFlags & nsIWebBrowserChrome::CHROME_OPENAS_CHROME)) { | |
| 1589 // Remove the dependent flag if we're not opening as chrome | |
| 1590 chromeFlags &= ~nsIWebBrowserChrome::CHROME_DEPENDENT; | |
| 1591 } | |
| 1592 | |
| 1593 // Disable CHROME_OPENAS_DIALOG if the window is inside <iframe mozbrowser>. | |
| 1594 // It's up to the embedder to interpret what dialog=1 means. | |
| 1595 nsCOMPtr<nsIDocShell> docshell = do_GetInterface(aParent); | |
| 1596 if (docshell && docshell->GetIsInBrowserOrApp()) { | |
| 1597 chromeFlags &= ~nsIWebBrowserChrome::CHROME_OPENAS_DIALOG; | |
| 1598 } | |
| 1599 | |
| 1600 return chromeFlags; | |
| 1601 } | |
| 1602 | |
| 1603 // static | |
| 1604 int32_t | |
| 1605 nsWindowWatcher::WinHasOption(const char *aOptions, const char *aName, | |
| 1606 int32_t aDefault, bool *aPresenceFlag) | |
| 1607 { | |
| 1608 if (!aOptions) | |
| 1609 return 0; | |
| 1610 | |
| 1611 char *comma, *equal; | |
| 1612 int32_t found = 0; | |
| 1613 | |
| 1614 #ifdef DEBUG | |
| 1615 nsAutoCString options(aOptions); | |
| 1616 NS_ASSERTION(options.FindCharInSet(" \n\r\t") == kNotFound, | |
| 1617 "There should be no whitespace in this string!"); | |
| 1618 #endif | |
| 1619 | |
| 1620 while (true) { | |
| 1621 comma = PL_strchr(aOptions, ','); | |
| 1622 if (comma) | |
| 1623 *comma = '\0'; | |
| 1624 equal = PL_strchr(aOptions, '='); | |
| 1625 if (equal) | |
| 1626 *equal = '\0'; | |
| 1627 if (nsCRT::strcasecmp(aOptions, aName) == 0) { | |
| 1628 if (aPresenceFlag) | |
| 1629 *aPresenceFlag = true; | |
| 1630 if (equal) | |
| 1631 if (*(equal + 1) == '*') | |
| 1632 found = aDefault; | |
| 1633 else if (nsCRT::strcasecmp(equal + 1, "yes") == 0) | |
| 1634 found = 1; | |
| 1635 else | |
| 1636 found = atoi(equal + 1); | |
| 1637 else | |
| 1638 found = 1; | |
| 1639 } | |
| 1640 if (equal) | |
| 1641 *equal = '='; | |
| 1642 if (comma) | |
| 1643 *comma = ','; | |
| 1644 if (found || !comma) | |
| 1645 break; | |
| 1646 aOptions = comma + 1; | |
| 1647 } | |
| 1648 return found; | |
| 1649 } | |
| 1650 | |
| 1651 /* try to find an nsIDocShellTreeItem with the given name in any | |
| 1652 known open window. a failure to find the item will not | |
| 1653 necessarily return a failure method value. check aFoundItem. | |
| 1654 */ | |
| 1655 NS_IMETHODIMP | |
| 1656 nsWindowWatcher::FindItemWithName(const char16_t* aName, | |
| 1657 nsIDocShellTreeItem* aRequestor, | |
| 1658 nsIDocShellTreeItem* aOriginalRequestor, | |
| 1659 nsIDocShellTreeItem** aFoundItem) | |
| 1660 { | |
| 1661 *aFoundItem = 0; | |
| 1662 | |
| 1663 /* special cases */ | |
| 1664 if(!aName || !*aName) | |
| 1665 return NS_OK; | |
| 1666 | |
| 1667 nsDependentString name(aName); | |
| 1668 | |
| 1669 nsCOMPtr<nsISimpleEnumerator> windows; | |
| 1670 GetWindowEnumerator(getter_AddRefs(windows)); | |
| 1671 if (!windows) | |
| 1672 return NS_ERROR_FAILURE; | |
| 1673 | |
| 1674 bool more; | |
| 1675 nsresult rv = NS_OK; | |
| 1676 | |
| 1677 do { | |
| 1678 windows->HasMoreElements(&more); | |
| 1679 if (!more) | |
| 1680 break; | |
| 1681 nsCOMPtr<nsISupports> nextSupWindow; | |
| 1682 windows->GetNext(getter_AddRefs(nextSupWindow)); | |
| 1683 nsCOMPtr<nsIDOMWindow> nextWindow(do_QueryInterface(nextSupWindow)); | |
| 1684 if (nextWindow) { | |
| 1685 nsCOMPtr<nsIDocShellTreeItem> treeItem; | |
| 1686 GetWindowTreeItem(nextWindow, getter_AddRefs(treeItem)); | |
| 1687 if (treeItem) { | |
| 1688 // Get the root tree item of same type, since roots are the only | |
| 1689 // things that call into the treeowner to look for named items. | |
| 1690 nsCOMPtr<nsIDocShellTreeItem> root; | |
| 1691 treeItem->GetSameTypeRootTreeItem(getter_AddRefs(root)); | |
| 1692 NS_ASSERTION(root, "Must have root tree item of same type"); | |
| 1693 // Make sure not to call back into aRequestor | |
| 1694 if (root != aRequestor) { | |
| 1695 // Get the tree owner so we can pass it in as the requestor so | |
| 1696 // the child knows not to call back up, since we're walking | |
| 1697 // all windows already. | |
| 1698 nsCOMPtr<nsIDocShellTreeOwner> rootOwner; | |
| 1699 // Note: if we have no aRequestor, then we want to also look for | |
| 1700 // "special" window names, so pass a null requestor. This will mean | |
| 1701 // that the treeitem calls back up to us, effectively (with a | |
| 1702 // non-null aRequestor), so break the loop immediately after the | |
| 1703 // call in that case. | |
| 1704 if (aRequestor) { | |
| 1705 root->GetTreeOwner(getter_AddRefs(rootOwner)); | |
| 1706 } | |
| 1707 rv = root->FindItemWithName(aName, rootOwner, aOriginalRequestor, | |
| 1708 aFoundItem); | |
| 1709 if (NS_FAILED(rv) || *aFoundItem || !aRequestor) | |
| 1710 break; | |
| 1711 } | |
| 1712 } | |
| 1713 } | |
| 1714 } while(1); | |
| 1715 | |
| 1716 return rv; | |
| 1717 } | |
| 1718 | |
| 1719 already_AddRefed<nsIDocShellTreeItem> | |
| 1720 nsWindowWatcher::GetCallerTreeItem(nsIDocShellTreeItem* aParentItem) | |
| 1721 { | |
| 1722 JSContext *cx = nsContentUtils::GetCurrentJSContext(); | |
| 1723 nsCOMPtr<nsIDocShellTreeItem> callerItem; | |
| 1724 | |
| 1725 if (cx) { | |
| 1726 nsCOMPtr<nsIWebNavigation> callerWebNav = | |
| 1727 do_GetInterface(nsJSUtils::GetDynamicScriptGlobal(cx)); | |
| 1728 | |
| 1729 callerItem = do_QueryInterface(callerWebNav); | |
| 1730 } | |
| 1731 | |
| 1732 if (!callerItem) { | |
| 1733 callerItem = aParentItem; | |
| 1734 } | |
| 1735 | |
| 1736 return callerItem.forget(); | |
| 1737 } | |
| 1738 | |
| 1739 already_AddRefed<nsIDOMWindow> | |
| 1740 nsWindowWatcher::SafeGetWindowByName(const nsAString& aName, | |
| 1741 nsIDOMWindow* aCurrentWindow) | |
| 1742 { | |
| 1743 nsCOMPtr<nsIDocShellTreeItem> startItem; | |
| 1744 GetWindowTreeItem(aCurrentWindow, getter_AddRefs(startItem)); | |
| 1745 | |
| 1746 nsCOMPtr<nsIDocShellTreeItem> callerItem = GetCallerTreeItem(startItem); | |
| 1747 | |
| 1748 const nsAFlatString& flatName = PromiseFlatString(aName); | |
| 1749 | |
| 1750 nsCOMPtr<nsIDocShellTreeItem> foundItem; | |
| 1751 if (startItem) { | |
| 1752 startItem->FindItemWithName(flatName.get(), nullptr, callerItem, | |
| 1753 getter_AddRefs(foundItem)); | |
| 1754 } | |
| 1755 else { | |
| 1756 FindItemWithName(flatName.get(), nullptr, callerItem, | |
| 1757 getter_AddRefs(foundItem)); | |
| 1758 } | |
| 1759 | |
| 1760 nsCOMPtr<nsIDOMWindow> foundWin = do_GetInterface(foundItem); | |
| 1761 return foundWin.forget(); | |
| 1762 } | |
| 1763 | |
| 1764 /* Fetch the nsIDOMWindow corresponding to the given nsIDocShellTreeItem. | |
| 1765 This forces the creation of a script context, if one has not already | |
| 1766 been created. Note it also sets the window's opener to the parent, | |
| 1767 if applicable -- because it's just convenient, that's all. null aParent | |
| 1768 is acceptable. */ | |
| 1769 nsresult | |
| 1770 nsWindowWatcher::ReadyOpenedDocShellItem(nsIDocShellTreeItem *aOpenedItem, | |
| 1771 nsIDOMWindow *aParent, | |
| 1772 bool aWindowIsNew, | |
| 1773 nsIDOMWindow **aOpenedWindow) | |
| 1774 { | |
| 1775 nsresult rv = NS_ERROR_FAILURE; | |
| 1776 | |
| 1777 *aOpenedWindow = 0; | |
| 1778 nsCOMPtr<nsPIDOMWindow> piOpenedWindow(do_GetInterface(aOpenedItem)); | |
| 1779 if (piOpenedWindow) { | |
| 1780 if (aParent) { | |
| 1781 piOpenedWindow->SetOpenerWindow(aParent, aWindowIsNew); // damnit | |
| 1782 | |
| 1783 if (aWindowIsNew) { | |
| 1784 #ifdef DEBUG | |
| 1785 // Assert that we're not loading things right now. If we are, when | |
| 1786 // that load completes it will clobber whatever principals we set up | |
| 1787 // on this new window! | |
| 1788 nsCOMPtr<nsIDocumentLoader> docloader = | |
| 1789 do_QueryInterface(aOpenedItem); | |
| 1790 NS_ASSERTION(docloader, "How can we not have a docloader here?"); | |
| 1791 | |
| 1792 nsCOMPtr<nsIChannel> chan; | |
| 1793 docloader->GetDocumentChannel(getter_AddRefs(chan)); | |
| 1794 NS_ASSERTION(!chan, "Why is there a document channel?"); | |
| 1795 #endif | |
| 1796 | |
| 1797 nsCOMPtr<nsIDocument> doc = piOpenedWindow->GetExtantDoc(); | |
| 1798 if (doc) { | |
| 1799 doc->SetIsInitialDocument(true); | |
| 1800 } | |
| 1801 } | |
| 1802 } | |
| 1803 rv = CallQueryInterface(piOpenedWindow, aOpenedWindow); | |
| 1804 } | |
| 1805 return rv; | |
| 1806 } | |
| 1807 | |
| 1808 // static | |
| 1809 void | |
| 1810 nsWindowWatcher::CalcSizeSpec(const char* aFeatures, SizeSpec& aResult) | |
| 1811 { | |
| 1812 // Parse position spec, if any, from aFeatures | |
| 1813 bool present; | |
| 1814 int32_t temp; | |
| 1815 | |
| 1816 present = false; | |
| 1817 if ((temp = WinHasOption(aFeatures, "left", 0, &present)) || present) | |
| 1818 aResult.mLeft = temp; | |
| 1819 else if ((temp = WinHasOption(aFeatures, "screenX", 0, &present)) || present) | |
| 1820 aResult.mLeft = temp; | |
| 1821 aResult.mLeftSpecified = present; | |
| 1822 | |
| 1823 present = false; | |
| 1824 if ((temp = WinHasOption(aFeatures, "top", 0, &present)) || present) | |
| 1825 aResult.mTop = temp; | |
| 1826 else if ((temp = WinHasOption(aFeatures, "screenY", 0, &present)) || present) | |
| 1827 aResult.mTop = temp; | |
| 1828 aResult.mTopSpecified = present; | |
| 1829 | |
| 1830 // Parse size spec, if any. Chrome size overrides content size. | |
| 1831 if ((temp = WinHasOption(aFeatures, "outerWidth", INT32_MIN, nullptr))) { | |
| 1832 if (temp == INT32_MIN) { | |
| 1833 aResult.mUseDefaultWidth = true; | |
| 1834 } | |
| 1835 else { | |
| 1836 aResult.mOuterWidth = temp; | |
| 1837 } | |
| 1838 aResult.mOuterWidthSpecified = true; | |
| 1839 } else if ((temp = WinHasOption(aFeatures, "width", INT32_MIN, nullptr)) || | |
| 1840 (temp = WinHasOption(aFeatures, "innerWidth", INT32_MIN, | |
| 1841 nullptr))) { | |
| 1842 if (temp == INT32_MIN) { | |
| 1843 aResult.mUseDefaultWidth = true; | |
| 1844 } else { | |
| 1845 aResult.mInnerWidth = temp; | |
| 1846 } | |
| 1847 aResult.mInnerWidthSpecified = true; | |
| 1848 } | |
| 1849 | |
| 1850 if ((temp = WinHasOption(aFeatures, "outerHeight", INT32_MIN, nullptr))) { | |
| 1851 if (temp == INT32_MIN) { | |
| 1852 aResult.mUseDefaultHeight = true; | |
| 1853 } | |
| 1854 else { | |
| 1855 aResult.mOuterHeight = temp; | |
| 1856 } | |
| 1857 aResult.mOuterHeightSpecified = true; | |
| 1858 } else if ((temp = WinHasOption(aFeatures, "height", INT32_MIN, | |
| 1859 nullptr)) || | |
| 1860 (temp = WinHasOption(aFeatures, "innerHeight", INT32_MIN, | |
| 1861 nullptr))) { | |
| 1862 if (temp == INT32_MIN) { | |
| 1863 aResult.mUseDefaultHeight = true; | |
| 1864 } else { | |
| 1865 aResult.mInnerHeight = temp; | |
| 1866 } | |
| 1867 aResult.mInnerHeightSpecified = true; | |
| 1868 } | |
| 1869 } | |
| 1870 | |
| 1871 /* Size and position the new window according to aSizeSpec. This method | |
| 1872 is assumed to be called after the window has already been given | |
| 1873 a default position and size; thus its current position and size are | |
| 1874 accurate defaults. The new window is made visible at method end. | |
| 1875 */ | |
| 1876 void | |
| 1877 nsWindowWatcher::SizeOpenedDocShellItem(nsIDocShellTreeItem *aDocShellItem, | |
| 1878 nsIDOMWindow *aParent, | |
| 1879 const SizeSpec & aSizeSpec) | |
| 1880 { | |
| 1881 // position and size of window | |
| 1882 int32_t left = 0, | |
| 1883 top = 0, | |
| 1884 width = 100, | |
| 1885 height = 100; | |
| 1886 // difference between chrome and content size | |
| 1887 int32_t chromeWidth = 0, | |
| 1888 chromeHeight = 0; | |
| 1889 // whether the window size spec refers to chrome or content | |
| 1890 bool sizeChromeWidth = true, | |
| 1891 sizeChromeHeight = true; | |
| 1892 | |
| 1893 // get various interfaces for aDocShellItem, used throughout this method | |
| 1894 nsCOMPtr<nsIDocShellTreeOwner> treeOwner; | |
| 1895 aDocShellItem->GetTreeOwner(getter_AddRefs(treeOwner)); | |
| 1896 nsCOMPtr<nsIBaseWindow> treeOwnerAsWin(do_QueryInterface(treeOwner)); | |
| 1897 if (!treeOwnerAsWin) // we'll need this to actually size the docshell | |
| 1898 return; | |
| 1899 | |
| 1900 double openerZoom = 1.0; | |
| 1901 if (aParent) { | |
| 1902 nsCOMPtr<nsIDOMDocument> openerDoc; | |
| 1903 aParent->GetDocument(getter_AddRefs(openerDoc)); | |
| 1904 if (openerDoc) { | |
| 1905 nsCOMPtr<nsIDocument> doc = do_QueryInterface(openerDoc); | |
| 1906 nsIPresShell* shell = doc->GetShell(); | |
| 1907 if (shell) { | |
| 1908 nsPresContext* presContext = shell->GetPresContext(); | |
| 1909 if (presContext) { | |
| 1910 openerZoom = presContext->GetFullZoom(); | |
| 1911 } | |
| 1912 } | |
| 1913 } | |
| 1914 } | |
| 1915 | |
| 1916 double scale; | |
| 1917 treeOwnerAsWin->GetUnscaledDevicePixelsPerCSSPixel(&scale); | |
| 1918 | |
| 1919 /* The current position and size will be unchanged if not specified | |
| 1920 (and they fit entirely onscreen). Also, calculate the difference | |
| 1921 between chrome and content sizes on aDocShellItem's window. | |
| 1922 This latter point becomes important if chrome and content | |
| 1923 specifications are mixed in aFeatures, and when bringing the window | |
| 1924 back from too far off the right or bottom edges of the screen. */ | |
| 1925 | |
| 1926 treeOwnerAsWin->GetPositionAndSize(&left, &top, &width, &height); | |
| 1927 left = NSToIntRound(left / scale); | |
| 1928 top = NSToIntRound(top / scale); | |
| 1929 width = NSToIntRound(width / scale); | |
| 1930 height = NSToIntRound(height / scale); | |
| 1931 { // scope shellWindow why not | |
| 1932 nsCOMPtr<nsIBaseWindow> shellWindow(do_QueryInterface(aDocShellItem)); | |
| 1933 if (shellWindow) { | |
| 1934 int32_t cox, coy; | |
| 1935 double shellScale; | |
| 1936 shellWindow->GetSize(&cox, &coy); | |
| 1937 shellWindow->GetUnscaledDevicePixelsPerCSSPixel(&shellScale); | |
| 1938 chromeWidth = width - NSToIntRound(cox / shellScale); | |
| 1939 chromeHeight = height - NSToIntRound(coy / shellScale); | |
| 1940 } | |
| 1941 } | |
| 1942 | |
| 1943 // Set up left/top | |
| 1944 if (aSizeSpec.mLeftSpecified) { | |
| 1945 left = NSToIntRound(aSizeSpec.mLeft * openerZoom); | |
| 1946 } | |
| 1947 | |
| 1948 if (aSizeSpec.mTopSpecified) { | |
| 1949 top = NSToIntRound(aSizeSpec.mTop * openerZoom); | |
| 1950 } | |
| 1951 | |
| 1952 // Set up width | |
| 1953 if (aSizeSpec.mOuterWidthSpecified) { | |
| 1954 if (!aSizeSpec.mUseDefaultWidth) { | |
| 1955 width = NSToIntRound(aSizeSpec.mOuterWidth * openerZoom); | |
| 1956 } // Else specified to default; just use our existing width | |
| 1957 } | |
| 1958 else if (aSizeSpec.mInnerWidthSpecified) { | |
| 1959 sizeChromeWidth = false; | |
| 1960 if (aSizeSpec.mUseDefaultWidth) { | |
| 1961 width = width - chromeWidth; | |
| 1962 } else { | |
| 1963 width = NSToIntRound(aSizeSpec.mInnerWidth * openerZoom); | |
| 1964 } | |
| 1965 } | |
| 1966 | |
| 1967 // Set up height | |
| 1968 if (aSizeSpec.mOuterHeightSpecified) { | |
| 1969 if (!aSizeSpec.mUseDefaultHeight) { | |
| 1970 height = NSToIntRound(aSizeSpec.mOuterHeight * openerZoom); | |
| 1971 } // Else specified to default; just use our existing height | |
| 1972 } | |
| 1973 else if (aSizeSpec.mInnerHeightSpecified) { | |
| 1974 sizeChromeHeight = false; | |
| 1975 if (aSizeSpec.mUseDefaultHeight) { | |
| 1976 height = height - chromeHeight; | |
| 1977 } else { | |
| 1978 height = NSToIntRound(aSizeSpec.mInnerHeight * openerZoom); | |
| 1979 } | |
| 1980 } | |
| 1981 | |
| 1982 bool positionSpecified = aSizeSpec.PositionSpecified(); | |
| 1983 | |
| 1984 // Check security state for use in determing window dimensions | |
| 1985 bool enabled = false; | |
| 1986 if (nsContentUtils::IsCallerChrome()) { | |
| 1987 // Only enable special priveleges for chrome when chrome calls | |
| 1988 // open() on a chrome window | |
| 1989 nsCOMPtr<nsIDOMChromeWindow> chromeWin(do_QueryInterface(aParent)); | |
| 1990 enabled = !aParent || chromeWin; | |
| 1991 } | |
| 1992 | |
| 1993 if (!enabled) { | |
| 1994 | |
| 1995 // Security check failed. Ensure all args meet minimum reqs. | |
| 1996 | |
| 1997 int32_t oldTop = top, | |
| 1998 oldLeft = left; | |
| 1999 | |
| 2000 // We'll also need the screen dimensions | |
| 2001 nsCOMPtr<nsIScreen> screen; | |
| 2002 nsCOMPtr<nsIScreenManager> screenMgr(do_GetService( | |
| 2003 "@mozilla.org/gfx/screenmanager;1")); | |
| 2004 if (screenMgr) | |
| 2005 screenMgr->ScreenForRect(left, top, width, height, | |
| 2006 getter_AddRefs(screen)); | |
| 2007 if (screen) { | |
| 2008 int32_t screenLeft, screenTop, screenWidth, screenHeight; | |
| 2009 int32_t winWidth = width + (sizeChromeWidth ? 0 : chromeWidth), | |
| 2010 winHeight = height + (sizeChromeHeight ? 0 : chromeHeight); | |
| 2011 | |
| 2012 screen->GetAvailRectDisplayPix(&screenLeft, &screenTop, | |
| 2013 &screenWidth, &screenHeight); | |
| 2014 | |
| 2015 if (aSizeSpec.SizeSpecified()) { | |
| 2016 /* Unlike position, force size out-of-bounds check only if | |
| 2017 size actually was specified. Otherwise, intrinsically sized | |
| 2018 windows are broken. */ | |
| 2019 if (height < 100) { | |
| 2020 height = 100; | |
| 2021 winHeight = height + (sizeChromeHeight ? 0 : chromeHeight); | |
| 2022 } | |
| 2023 if (winHeight > screenHeight) { | |
| 2024 height = screenHeight - (sizeChromeHeight ? 0 : chromeHeight); | |
| 2025 } | |
| 2026 if (width < 100) { | |
| 2027 width = 100; | |
| 2028 winWidth = width + (sizeChromeWidth ? 0 : chromeWidth); | |
| 2029 } | |
| 2030 if (winWidth > screenWidth) { | |
| 2031 width = screenWidth - (sizeChromeWidth ? 0 : chromeWidth); | |
| 2032 } | |
| 2033 } | |
| 2034 | |
| 2035 if (left + winWidth > screenLeft + screenWidth || left + winWidth < left) { | |
| 2036 left = screenLeft + screenWidth - winWidth; | |
| 2037 } | |
| 2038 if (left < screenLeft) { | |
| 2039 left = screenLeft; | |
| 2040 } | |
| 2041 if (top + winHeight > screenTop + screenHeight || top + winHeight < top) { | |
| 2042 top = screenTop + screenHeight - winHeight; | |
| 2043 } | |
| 2044 if (top < screenTop) { | |
| 2045 top = screenTop; | |
| 2046 } | |
| 2047 if (top != oldTop || left != oldLeft) { | |
| 2048 positionSpecified = true; | |
| 2049 } | |
| 2050 } | |
| 2051 } | |
| 2052 | |
| 2053 // size and position the window | |
| 2054 | |
| 2055 if (positionSpecified) { | |
| 2056 treeOwnerAsWin->SetPosition(left * scale, top * scale); | |
| 2057 // moving the window may have changed its scale factor | |
| 2058 treeOwnerAsWin->GetUnscaledDevicePixelsPerCSSPixel(&scale); | |
| 2059 } | |
| 2060 if (aSizeSpec.SizeSpecified()) { | |
| 2061 /* Prefer to trust the interfaces, which think in terms of pure | |
| 2062 chrome or content sizes. If we have a mix, use the chrome size | |
| 2063 adjusted by the chrome/content differences calculated earlier. */ | |
| 2064 if (!sizeChromeWidth && !sizeChromeHeight) { | |
| 2065 treeOwner->SizeShellTo(aDocShellItem, width * scale, height * scale); | |
| 2066 } | |
| 2067 else { | |
| 2068 if (!sizeChromeWidth) | |
| 2069 width += chromeWidth; | |
| 2070 if (!sizeChromeHeight) | |
| 2071 height += chromeHeight; | |
| 2072 treeOwnerAsWin->SetSize(width * scale, height * scale, false); | |
| 2073 } | |
| 2074 } | |
| 2075 treeOwnerAsWin->SetVisibility(true); | |
| 2076 } | |
| 2077 | |
| 2078 void | |
| 2079 nsWindowWatcher::GetWindowTreeItem(nsIDOMWindow *inWindow, | |
| 2080 nsIDocShellTreeItem **outTreeItem) | |
| 2081 { | |
| 2082 *outTreeItem = 0; | |
| 2083 | |
| 2084 nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(inWindow)); | |
| 2085 if (window) { | |
| 2086 nsIDocShell *docshell = window->GetDocShell(); | |
| 2087 if (docshell) | |
| 2088 CallQueryInterface(docshell, outTreeItem); | |
| 2089 } | |
| 2090 } | |
| 2091 | |
| 2092 void | |
| 2093 nsWindowWatcher::GetWindowTreeOwner(nsIDOMWindow *inWindow, | |
| 2094 nsIDocShellTreeOwner **outTreeOwner) | |
| 2095 { | |
| 2096 *outTreeOwner = 0; | |
| 2097 | |
| 2098 nsCOMPtr<nsIDocShellTreeItem> treeItem; | |
| 2099 GetWindowTreeItem(inWindow, getter_AddRefs(treeItem)); | |
| 2100 if (treeItem) | |
| 2101 treeItem->GetTreeOwner(outTreeOwner); | |
| 2102 } | |
| 2103 | |
| 2104 JSContext * | |
| 2105 nsWindowWatcher::GetJSContextFromWindow(nsIDOMWindow *aWindow) | |
| 2106 { | |
| 2107 JSContext *cx = 0; | |
| 2108 | |
| 2109 if (aWindow) { | |
| 2110 nsCOMPtr<nsIScriptGlobalObject> sgo(do_QueryInterface(aWindow)); | |
| 2111 if (sgo) { | |
| 2112 nsIScriptContext *scx = sgo->GetContext(); | |
| 2113 if (scx) | |
| 2114 cx = scx->GetNativeContext(); | |
| 2115 } | |
| 2116 /* (off-topic note:) the nsIScriptContext can be retrieved by | |
| 2117 nsCOMPtr<nsIScriptContext> scx; | |
| 2118 nsJSUtils::GetDynamicScriptContext(cx, getter_AddRefs(scx)); | |
| 2119 */ | |
| 2120 } | |
| 2121 | |
| 2122 return cx; | |
| 2123 } |
