layout/xul/nsXULTooltipListener.h@ac0c01689b40 (annotated)
layout/xul/nsXULTooltipListener.h
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef nsXULTooltipListener_h__ |
| michael@0 | 7 | #define nsXULTooltipListener_h__ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "nsIDOMEventListener.h" |
| michael@0 | 10 | #include "nsIDOMMouseEvent.h" |
| michael@0 | 11 | #include "nsIDOMElement.h" |
| michael@0 | 12 | #include "nsITimer.h" |
| michael@0 | 13 | #include "nsCOMPtr.h" |
| michael@0 | 14 | #include "nsString.h" |
| michael@0 | 15 | #ifdef MOZ_XUL |
| michael@0 | 16 | #include "nsITreeBoxObject.h" |
| michael@0 | 17 | #include "nsITreeColumns.h" |
| michael@0 | 18 | #endif |
| michael@0 | 19 | #include "nsWeakPtr.h" |
| michael@0 | 20 | #include "mozilla/Attributes.h" |
| michael@0 | 21 | |
| michael@0 | 22 | class nsIContent; |
| michael@0 | 23 | |
| michael@0 | 24 | class nsXULTooltipListener MOZ_FINAL : public nsIDOMEventListener |
| michael@0 | 25 | { |
| michael@0 | 26 | public: |
| michael@0 | 27 | NS_DECL_ISUPPORTS |
| michael@0 | 28 | NS_DECL_NSIDOMEVENTLISTENER |
| michael@0 | 29 | |
| michael@0 | 30 | void MouseOut(nsIDOMEvent* aEvent); |
| michael@0 | 31 | void MouseMove(nsIDOMEvent* aEvent); |
| michael@0 | 32 | |
| michael@0 | 33 | nsresult AddTooltipSupport(nsIContent* aNode); |
| michael@0 | 34 | nsresult RemoveTooltipSupport(nsIContent* aNode); |
| michael@0 | 35 | static nsXULTooltipListener* GetInstance() { |
| michael@0 | 36 | if (!mInstance) |
| michael@0 | 37 | mInstance = new nsXULTooltipListener(); |
| michael@0 | 38 | return mInstance; |
| michael@0 | 39 | } |
| michael@0 | 40 | static void ClearTooltipCache() { mInstance = nullptr; } |
| michael@0 | 41 | |
| michael@0 | 42 | protected: |
| michael@0 | 43 | |
| michael@0 | 44 | nsXULTooltipListener(); |
| michael@0 | 45 | ~nsXULTooltipListener(); |
| michael@0 | 46 | |
| michael@0 | 47 | // pref callback for when the "show tooltips" pref changes |
| michael@0 | 48 | static bool sShowTooltips; |
| michael@0 | 49 | static uint32_t sTooltipListenerCount; |
| michael@0 | 50 | |
| michael@0 | 51 | void KillTooltipTimer(); |
| michael@0 | 52 | |
| michael@0 | 53 | #ifdef MOZ_XUL |
| michael@0 | 54 | void CheckTreeBodyMove(nsIDOMMouseEvent* aMouseEvent); |
| michael@0 | 55 | nsresult GetSourceTreeBoxObject(nsITreeBoxObject** aBoxObject); |
| michael@0 | 56 | #endif |
| michael@0 | 57 | |
| michael@0 | 58 | nsresult ShowTooltip(); |
| michael@0 | 59 | void LaunchTooltip(); |
| michael@0 | 60 | nsresult HideTooltip(); |
| michael@0 | 61 | nsresult DestroyTooltip(); |
| michael@0 | 62 | // This method tries to find a tooltip for aTarget. |
| michael@0 | 63 | nsresult FindTooltip(nsIContent* aTarget, nsIContent** aTooltip); |
| michael@0 | 64 | // This method calls FindTooltip and checks that the tooltip |
| michael@0 | 65 | // can be really used (i.e. tooltip is not a menu). |
| michael@0 | 66 | nsresult GetTooltipFor(nsIContent* aTarget, nsIContent** aTooltip); |
| michael@0 | 67 | |
| michael@0 | 68 | static nsXULTooltipListener* mInstance; |
| michael@0 | 69 | static void ToolbarTipsPrefChanged(const char *aPref, void *aClosure); |
| michael@0 | 70 | |
| michael@0 | 71 | nsWeakPtr mSourceNode; |
| michael@0 | 72 | nsWeakPtr mTargetNode; |
| michael@0 | 73 | nsWeakPtr mCurrentTooltip; |
| michael@0 | 74 | |
| michael@0 | 75 | // a timer for showing the tooltip |
| michael@0 | 76 | nsCOMPtr<nsITimer> mTooltipTimer; |
| michael@0 | 77 | static void sTooltipCallback (nsITimer* aTimer, void* aListener); |
| michael@0 | 78 | |
| michael@0 | 79 | // screen coordinates of the last mousemove event, stored so that the |
| michael@0 | 80 | // tooltip can be opened at this location. |
| michael@0 | 81 | int32_t mMouseScreenX, mMouseScreenY; |
| michael@0 | 82 | |
| michael@0 | 83 | // various constants for tooltips |
| michael@0 | 84 | enum { |
| michael@0 | 85 | kTooltipMouseMoveTolerance = 7 // 7 pixel tolerance for mousemove event |
| michael@0 | 86 | }; |
| michael@0 | 87 | |
| michael@0 | 88 | // flag specifying if the tooltip has already been displayed by a MouseMove |
| michael@0 | 89 | // event. The flag is reset on MouseOut so that the tooltip will display |
| michael@0 | 90 | // the next time the mouse enters the node (bug #395668). |
| michael@0 | 91 | bool mTooltipShownOnce; |
| michael@0 | 92 | |
| michael@0 | 93 | #ifdef MOZ_XUL |
| michael@0 | 94 | // special members for handling trees |
| michael@0 | 95 | bool mIsSourceTree; |
| michael@0 | 96 | bool mNeedTitletip; |
| michael@0 | 97 | int32_t mLastTreeRow; |
| michael@0 | 98 | nsCOMPtr<nsITreeColumn> mLastTreeCol; |
| michael@0 | 99 | #endif |
| michael@0 | 100 | }; |
| michael@0 | 101 | |
| michael@0 | 102 | #endif // nsXULTooltipListener |
