The Tor Browser / file comparison
comparison: layout/xul/nsScrollBoxFrame.cpp
layout/xul/nsScrollBoxFrame.cpp
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
equal
deleted
inserted
replaced
| -1:000000000000 | 0:ecf65a9f8ddd |
|---|---|
| 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 #include "nsCOMPtr.h" | |
| 7 #include "nsPresContext.h" | |
| 8 #include "nsGkAtoms.h" | |
| 9 #include "nsButtonBoxFrame.h" | |
| 10 #include "nsITimer.h" | |
| 11 #include "nsRepeatService.h" | |
| 12 #include "mozilla/MouseEvents.h" | |
| 13 #include "nsIContent.h" | |
| 14 | |
| 15 using namespace mozilla; | |
| 16 | |
| 17 class nsAutoRepeatBoxFrame : public nsButtonBoxFrame | |
| 18 { | |
| 19 public: | |
| 20 NS_DECL_FRAMEARENA_HELPERS | |
| 21 | |
| 22 friend nsIFrame* NS_NewAutoRepeatBoxFrame(nsIPresShell* aPresShell, | |
| 23 nsStyleContext* aContext); | |
| 24 | |
| 25 virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE; | |
| 26 | |
| 27 virtual nsresult AttributeChanged(int32_t aNameSpaceID, | |
| 28 nsIAtom* aAttribute, | |
| 29 int32_t aModType) MOZ_OVERRIDE; | |
| 30 | |
| 31 virtual nsresult HandleEvent(nsPresContext* aPresContext, | |
| 32 WidgetGUIEvent* aEvent, | |
| 33 nsEventStatus* aEventStatus) MOZ_OVERRIDE; | |
| 34 | |
| 35 NS_IMETHOD HandlePress(nsPresContext* aPresContext, | |
| 36 WidgetGUIEvent* aEvent, | |
| 37 nsEventStatus* aEventStatus) MOZ_OVERRIDE; | |
| 38 | |
| 39 NS_IMETHOD HandleRelease(nsPresContext* aPresContext, | |
| 40 WidgetGUIEvent* aEvent, | |
| 41 nsEventStatus* aEventStatus) MOZ_OVERRIDE; | |
| 42 | |
| 43 protected: | |
| 44 nsAutoRepeatBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext): | |
| 45 nsButtonBoxFrame(aPresShell, aContext) {} | |
| 46 | |
| 47 void StartRepeat() { | |
| 48 if (IsActivatedOnHover()) { | |
| 49 // No initial delay on hover. | |
| 50 nsRepeatService::GetInstance()->Start(Notify, this, 0); | |
| 51 } else { | |
| 52 nsRepeatService::GetInstance()->Start(Notify, this); | |
| 53 } | |
| 54 } | |
| 55 void StopRepeat() { | |
| 56 nsRepeatService::GetInstance()->Stop(Notify, this); | |
| 57 } | |
| 58 void Notify(); | |
| 59 static void Notify(void* aData) { | |
| 60 static_cast<nsAutoRepeatBoxFrame*>(aData)->Notify(); | |
| 61 } | |
| 62 | |
| 63 bool mTrustedEvent; | |
| 64 | |
| 65 bool IsActivatedOnHover(); | |
| 66 }; | |
| 67 | |
| 68 nsIFrame* | |
| 69 NS_NewAutoRepeatBoxFrame (nsIPresShell* aPresShell, nsStyleContext* aContext) | |
| 70 { | |
| 71 return new (aPresShell) nsAutoRepeatBoxFrame (aPresShell, aContext); | |
| 72 } | |
| 73 | |
| 74 NS_IMPL_FRAMEARENA_HELPERS(nsAutoRepeatBoxFrame) | |
| 75 | |
| 76 nsresult | |
| 77 nsAutoRepeatBoxFrame::HandleEvent(nsPresContext* aPresContext, | |
| 78 WidgetGUIEvent* aEvent, | |
| 79 nsEventStatus* aEventStatus) | |
| 80 { | |
| 81 NS_ENSURE_ARG_POINTER(aEventStatus); | |
| 82 if (nsEventStatus_eConsumeNoDefault == *aEventStatus) { | |
| 83 return NS_OK; | |
| 84 } | |
| 85 | |
| 86 switch(aEvent->message) | |
| 87 { | |
| 88 // repeat mode may be "hover" for repeating while the mouse is hovering | |
| 89 // over the element, otherwise repetition is done while the element is | |
| 90 // active (pressed). | |
| 91 case NS_MOUSE_ENTER: | |
| 92 case NS_MOUSE_ENTER_SYNTH: | |
| 93 if (IsActivatedOnHover()) { | |
| 94 StartRepeat(); | |
| 95 mTrustedEvent = aEvent->mFlags.mIsTrusted; | |
| 96 } | |
| 97 break; | |
| 98 | |
| 99 case NS_MOUSE_EXIT: | |
| 100 case NS_MOUSE_EXIT_SYNTH: | |
| 101 // always stop on mouse exit | |
| 102 StopRepeat(); | |
| 103 // Not really necessary but do this to be safe | |
| 104 mTrustedEvent = false; | |
| 105 break; | |
| 106 | |
| 107 case NS_MOUSE_CLICK: { | |
| 108 WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent(); | |
| 109 if (mouseEvent->IsLeftClickEvent()) { | |
| 110 // skip button frame handling to prevent click handling | |
| 111 return nsBoxFrame::HandleEvent(aPresContext, mouseEvent, aEventStatus); | |
| 112 } | |
| 113 break; | |
| 114 } | |
| 115 } | |
| 116 | |
| 117 return nsButtonBoxFrame::HandleEvent(aPresContext, aEvent, aEventStatus); | |
| 118 } | |
| 119 | |
| 120 NS_IMETHODIMP | |
| 121 nsAutoRepeatBoxFrame::HandlePress(nsPresContext* aPresContext, | |
| 122 WidgetGUIEvent* aEvent, | |
| 123 nsEventStatus* aEventStatus) | |
| 124 { | |
| 125 if (!IsActivatedOnHover()) { | |
| 126 StartRepeat(); | |
| 127 mTrustedEvent = aEvent->mFlags.mIsTrusted; | |
| 128 DoMouseClick(aEvent, mTrustedEvent); | |
| 129 } | |
| 130 | |
| 131 return NS_OK; | |
| 132 } | |
| 133 | |
| 134 NS_IMETHODIMP | |
| 135 nsAutoRepeatBoxFrame::HandleRelease(nsPresContext* aPresContext, | |
| 136 WidgetGUIEvent* aEvent, | |
| 137 nsEventStatus* aEventStatus) | |
| 138 { | |
| 139 if (!IsActivatedOnHover()) { | |
| 140 StopRepeat(); | |
| 141 } | |
| 142 return NS_OK; | |
| 143 } | |
| 144 | |
| 145 nsresult | |
| 146 nsAutoRepeatBoxFrame::AttributeChanged(int32_t aNameSpaceID, | |
| 147 nsIAtom* aAttribute, | |
| 148 int32_t aModType) | |
| 149 { | |
| 150 if (aAttribute == nsGkAtoms::type) { | |
| 151 StopRepeat(); | |
| 152 } | |
| 153 return NS_OK; | |
| 154 } | |
| 155 | |
| 156 void | |
| 157 nsAutoRepeatBoxFrame::Notify() | |
| 158 { | |
| 159 DoMouseClick(nullptr, mTrustedEvent); | |
| 160 } | |
| 161 | |
| 162 void | |
| 163 nsAutoRepeatBoxFrame::DestroyFrom(nsIFrame* aDestructRoot) | |
| 164 { | |
| 165 // Ensure our repeat service isn't going... it's possible that a scrollbar can disappear out | |
| 166 // from under you while you're in the process of scrolling. | |
| 167 StopRepeat(); | |
| 168 nsButtonBoxFrame::DestroyFrom(aDestructRoot); | |
| 169 } | |
| 170 | |
| 171 bool | |
| 172 nsAutoRepeatBoxFrame::IsActivatedOnHover() | |
| 173 { | |
| 174 return mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::repeat, | |
| 175 nsGkAtoms::hover, eCaseMatters); | |
| 176 } |
