The Tor Browser / file comparison
comparison: layout/xul/nsXULTooltipListener.h
layout/xul/nsXULTooltipListener.h
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
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| -1:000000000000 | 0:5cd90daeb1c8 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef nsXULTooltipListener_h__ | |
| 7 #define nsXULTooltipListener_h__ | |
| 8 | |
| 9 #include "nsIDOMEventListener.h" | |
| 10 #include "nsIDOMMouseEvent.h" | |
| 11 #include "nsIDOMElement.h" | |
| 12 #include "nsITimer.h" | |
| 13 #include "nsCOMPtr.h" | |
| 14 #include "nsString.h" | |
| 15 #ifdef MOZ_XUL | |
| 16 #include "nsITreeBoxObject.h" | |
| 17 #include "nsITreeColumns.h" | |
| 18 #endif | |
| 19 #include "nsWeakPtr.h" | |
| 20 #include "mozilla/Attributes.h" | |
| 21 | |
| 22 class nsIContent; | |
| 23 | |
| 24 class nsXULTooltipListener MOZ_FINAL : public nsIDOMEventListener | |
| 25 { | |
| 26 public: | |
| 27 NS_DECL_ISUPPORTS | |
| 28 NS_DECL_NSIDOMEVENTLISTENER | |
| 29 | |
| 30 void MouseOut(nsIDOMEvent* aEvent); | |
| 31 void MouseMove(nsIDOMEvent* aEvent); | |
| 32 | |
| 33 nsresult AddTooltipSupport(nsIContent* aNode); | |
| 34 nsresult RemoveTooltipSupport(nsIContent* aNode); | |
| 35 static nsXULTooltipListener* GetInstance() { | |
| 36 if (!mInstance) | |
| 37 mInstance = new nsXULTooltipListener(); | |
| 38 return mInstance; | |
| 39 } | |
| 40 static void ClearTooltipCache() { mInstance = nullptr; } | |
| 41 | |
| 42 protected: | |
| 43 | |
| 44 nsXULTooltipListener(); | |
| 45 ~nsXULTooltipListener(); | |
| 46 | |
| 47 // pref callback for when the "show tooltips" pref changes | |
| 48 static bool sShowTooltips; | |
| 49 static uint32_t sTooltipListenerCount; | |
| 50 | |
| 51 void KillTooltipTimer(); | |
| 52 | |
| 53 #ifdef MOZ_XUL | |
| 54 void CheckTreeBodyMove(nsIDOMMouseEvent* aMouseEvent); | |
| 55 nsresult GetSourceTreeBoxObject(nsITreeBoxObject** aBoxObject); | |
| 56 #endif | |
| 57 | |
| 58 nsresult ShowTooltip(); | |
| 59 void LaunchTooltip(); | |
| 60 nsresult HideTooltip(); | |
| 61 nsresult DestroyTooltip(); | |
| 62 // This method tries to find a tooltip for aTarget. | |
| 63 nsresult FindTooltip(nsIContent* aTarget, nsIContent** aTooltip); | |
| 64 // This method calls FindTooltip and checks that the tooltip | |
| 65 // can be really used (i.e. tooltip is not a menu). | |
| 66 nsresult GetTooltipFor(nsIContent* aTarget, nsIContent** aTooltip); | |
| 67 | |
| 68 static nsXULTooltipListener* mInstance; | |
| 69 static void ToolbarTipsPrefChanged(const char *aPref, void *aClosure); | |
| 70 | |
| 71 nsWeakPtr mSourceNode; | |
| 72 nsWeakPtr mTargetNode; | |
| 73 nsWeakPtr mCurrentTooltip; | |
| 74 | |
| 75 // a timer for showing the tooltip | |
| 76 nsCOMPtr<nsITimer> mTooltipTimer; | |
| 77 static void sTooltipCallback (nsITimer* aTimer, void* aListener); | |
| 78 | |
| 79 // screen coordinates of the last mousemove event, stored so that the | |
| 80 // tooltip can be opened at this location. | |
| 81 int32_t mMouseScreenX, mMouseScreenY; | |
| 82 | |
| 83 // various constants for tooltips | |
| 84 enum { | |
| 85 kTooltipMouseMoveTolerance = 7 // 7 pixel tolerance for mousemove event | |
| 86 }; | |
| 87 | |
| 88 // flag specifying if the tooltip has already been displayed by a MouseMove | |
| 89 // event. The flag is reset on MouseOut so that the tooltip will display | |
| 90 // the next time the mouse enters the node (bug #395668). | |
| 91 bool mTooltipShownOnce; | |
| 92 | |
| 93 #ifdef MOZ_XUL | |
| 94 // special members for handling trees | |
| 95 bool mIsSourceTree; | |
| 96 bool mNeedTitletip; | |
| 97 int32_t mLastTreeRow; | |
| 98 nsCOMPtr<nsITreeColumn> mLastTreeCol; | |
| 99 #endif | |
| 100 }; | |
| 101 | |
| 102 #endif // nsXULTooltipListener |
