The Tor Browser / file comparison
comparison: dom/events/IMEContentObserver.h
dom/events/IMEContentObserver.h
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:8d95189aa690 |
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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=80: */ | |
| 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 #ifndef mozilla_IMEContentObserver_h_ | |
| 8 #define mozilla_IMEContentObserver_h_ | |
| 9 | |
| 10 #include "mozilla/Attributes.h" | |
| 11 #include "nsCOMPtr.h" | |
| 12 #include "nsCycleCollectionParticipant.h" | |
| 13 #include "nsIDocShell.h" // XXX Why does only this need to be included here? | |
| 14 #include "nsIReflowObserver.h" | |
| 15 #include "nsISelectionListener.h" | |
| 16 #include "nsIScrollObserver.h" | |
| 17 #include "nsIWidget.h" // for nsIMEUpdatePreference | |
| 18 #include "nsStubMutationObserver.h" | |
| 19 #include "nsWeakReference.h" | |
| 20 | |
| 21 class nsIContent; | |
| 22 class nsINode; | |
| 23 class nsISelection; | |
| 24 class nsPresContext; | |
| 25 | |
| 26 namespace mozilla { | |
| 27 | |
| 28 class EventStateManager; | |
| 29 | |
| 30 // IMEContentObserver notifies widget of any text and selection changes | |
| 31 // in the currently focused editor | |
| 32 class IMEContentObserver MOZ_FINAL : public nsISelectionListener, | |
| 33 public nsStubMutationObserver, | |
| 34 public nsIReflowObserver, | |
| 35 public nsIScrollObserver, | |
| 36 public nsSupportsWeakReference | |
| 37 { | |
| 38 public: | |
| 39 IMEContentObserver(); | |
| 40 | |
| 41 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 42 NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(IMEContentObserver, | |
| 43 nsISelectionListener) | |
| 44 NS_DECL_NSISELECTIONLISTENER | |
| 45 NS_DECL_NSIMUTATIONOBSERVER_CHARACTERDATACHANGED | |
| 46 NS_DECL_NSIMUTATIONOBSERVER_CONTENTAPPENDED | |
| 47 NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED | |
| 48 NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED | |
| 49 NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTEWILLCHANGE | |
| 50 NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED | |
| 51 NS_DECL_NSIREFLOWOBSERVER | |
| 52 | |
| 53 // nsIScrollObserver | |
| 54 virtual void ScrollPositionChanged() MOZ_OVERRIDE; | |
| 55 | |
| 56 void Init(nsIWidget* aWidget, nsPresContext* aPresContext, | |
| 57 nsIContent* aContent); | |
| 58 void Destroy(); | |
| 59 /** | |
| 60 * IMEContentObserver is stored by EventStateManager during observing. | |
| 61 * DisconnectFromEventStateManager() is called when EventStateManager stops | |
| 62 * storing the instance. | |
| 63 */ | |
| 64 void DisconnectFromEventStateManager(); | |
| 65 bool IsManaging(nsPresContext* aPresContext, nsIContent* aContent); | |
| 66 bool IsEditorHandlingEventForComposition() const; | |
| 67 bool KeepAliveDuringDeactive() const | |
| 68 { | |
| 69 return mUpdatePreference.WantDuringDeactive(); | |
| 70 } | |
| 71 nsIWidget* GetWidget() const { return mWidget; } | |
| 72 nsresult GetSelectionAndRoot(nsISelection** aSelection, | |
| 73 nsIContent** aRoot) const; | |
| 74 | |
| 75 private: | |
| 76 void NotifyContentAdded(nsINode* aContainer, int32_t aStart, int32_t aEnd); | |
| 77 void ObserveEditableNode(); | |
| 78 | |
| 79 nsCOMPtr<nsIWidget> mWidget; | |
| 80 nsCOMPtr<nsISelection> mSelection; | |
| 81 nsCOMPtr<nsIContent> mRootContent; | |
| 82 nsCOMPtr<nsINode> mEditableNode; | |
| 83 nsCOMPtr<nsIDocShell> mDocShell; | |
| 84 | |
| 85 EventStateManager* mESM; | |
| 86 | |
| 87 nsIMEUpdatePreference mUpdatePreference; | |
| 88 uint32_t mPreAttrChangeLength; | |
| 89 }; | |
| 90 | |
| 91 } // namespace mozilla | |
| 92 | |
| 93 #endif // mozilla_IMEContentObserver_h_ |
