The Tor Browser / file comparison
comparison: layout/xul/nsDeckFrame.cpp
layout/xul/nsDeckFrame.cpp
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
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replaced
| -1:000000000000 | 0:d759bb96d8ee |
|---|---|
| 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 // | |
| 7 // Eric Vaughan | |
| 8 // Netscape Communications | |
| 9 // | |
| 10 // See documentation in associated header file | |
| 11 // | |
| 12 | |
| 13 #include "nsDeckFrame.h" | |
| 14 #include "nsStyleContext.h" | |
| 15 #include "nsPresContext.h" | |
| 16 #include "nsIContent.h" | |
| 17 #include "nsCOMPtr.h" | |
| 18 #include "nsNameSpaceManager.h" | |
| 19 #include "nsGkAtoms.h" | |
| 20 #include "nsHTMLParts.h" | |
| 21 #include "nsIPresShell.h" | |
| 22 #include "nsCSSRendering.h" | |
| 23 #include "nsViewManager.h" | |
| 24 #include "nsBoxLayoutState.h" | |
| 25 #include "nsStackLayout.h" | |
| 26 #include "nsDisplayList.h" | |
| 27 #include "nsContainerFrame.h" | |
| 28 | |
| 29 #ifdef ACCESSIBILITY | |
| 30 #include "nsAccessibilityService.h" | |
| 31 #endif | |
| 32 | |
| 33 nsIFrame* | |
| 34 NS_NewDeckFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) | |
| 35 { | |
| 36 return new (aPresShell) nsDeckFrame(aPresShell, aContext); | |
| 37 } | |
| 38 | |
| 39 NS_IMPL_FRAMEARENA_HELPERS(nsDeckFrame) | |
| 40 | |
| 41 NS_QUERYFRAME_HEAD(nsDeckFrame) | |
| 42 NS_QUERYFRAME_ENTRY(nsDeckFrame) | |
| 43 NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame) | |
| 44 | |
| 45 | |
| 46 nsDeckFrame::nsDeckFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) | |
| 47 : nsBoxFrame(aPresShell, aContext), mIndex(0) | |
| 48 { | |
| 49 nsCOMPtr<nsBoxLayout> layout; | |
| 50 NS_NewStackLayout(aPresShell, layout); | |
| 51 SetLayoutManager(layout); | |
| 52 } | |
| 53 | |
| 54 nsIAtom* | |
| 55 nsDeckFrame::GetType() const | |
| 56 { | |
| 57 return nsGkAtoms::deckFrame; | |
| 58 } | |
| 59 | |
| 60 nsresult | |
| 61 nsDeckFrame::AttributeChanged(int32_t aNameSpaceID, | |
| 62 nsIAtom* aAttribute, | |
| 63 int32_t aModType) | |
| 64 { | |
| 65 nsresult rv = nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute, | |
| 66 aModType); | |
| 67 | |
| 68 | |
| 69 // if the index changed hide the old element and make the new element visible | |
| 70 if (aAttribute == nsGkAtoms::selectedIndex) { | |
| 71 IndexChanged(); | |
| 72 } | |
| 73 | |
| 74 return rv; | |
| 75 } | |
| 76 | |
| 77 void | |
| 78 nsDeckFrame::Init(nsIContent* aContent, | |
| 79 nsIFrame* aParent, | |
| 80 nsIFrame* aPrevInFlow) | |
| 81 { | |
| 82 nsBoxFrame::Init(aContent, aParent, aPrevInFlow); | |
| 83 | |
| 84 mIndex = GetSelectedIndex(); | |
| 85 } | |
| 86 | |
| 87 void | |
| 88 nsDeckFrame::HideBox(nsIFrame* aBox) | |
| 89 { | |
| 90 nsIPresShell::ClearMouseCapture(aBox); | |
| 91 } | |
| 92 | |
| 93 void | |
| 94 nsDeckFrame::IndexChanged() | |
| 95 { | |
| 96 //did the index change? | |
| 97 int32_t index = GetSelectedIndex(); | |
| 98 if (index == mIndex) | |
| 99 return; | |
| 100 | |
| 101 // redraw | |
| 102 InvalidateFrame(); | |
| 103 | |
| 104 // hide the currently showing box | |
| 105 nsIFrame* currentBox = GetSelectedBox(); | |
| 106 if (currentBox) // only hide if it exists | |
| 107 HideBox(currentBox); | |
| 108 | |
| 109 mIndex = index; | |
| 110 | |
| 111 #ifdef ACCESSIBILITY | |
| 112 nsAccessibilityService* accService = GetAccService(); | |
| 113 if (accService) { | |
| 114 accService->DeckPanelSwitched(PresContext()->GetPresShell(), mContent, | |
| 115 currentBox, GetSelectedBox()); | |
| 116 } | |
| 117 #endif | |
| 118 } | |
| 119 | |
| 120 int32_t | |
| 121 nsDeckFrame::GetSelectedIndex() | |
| 122 { | |
| 123 // default index is 0 | |
| 124 int32_t index = 0; | |
| 125 | |
| 126 // get the index attribute | |
| 127 nsAutoString value; | |
| 128 if (mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::selectedIndex, value)) | |
| 129 { | |
| 130 nsresult error; | |
| 131 | |
| 132 // convert it to an integer | |
| 133 index = value.ToInteger(&error); | |
| 134 } | |
| 135 | |
| 136 return index; | |
| 137 } | |
| 138 | |
| 139 nsIFrame* | |
| 140 nsDeckFrame::GetSelectedBox() | |
| 141 { | |
| 142 return (mIndex >= 0) ? mFrames.FrameAt(mIndex) : nullptr; | |
| 143 } | |
| 144 | |
| 145 void | |
| 146 nsDeckFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder, | |
| 147 const nsRect& aDirtyRect, | |
| 148 const nsDisplayListSet& aLists) | |
| 149 { | |
| 150 // if a tab is hidden all its children are too. | |
| 151 if (!StyleVisibility()->mVisible) | |
| 152 return; | |
| 153 | |
| 154 nsBoxFrame::BuildDisplayList(aBuilder, aDirtyRect, aLists); | |
| 155 } | |
| 156 | |
| 157 void | |
| 158 nsDeckFrame::BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder, | |
| 159 const nsRect& aDirtyRect, | |
| 160 const nsDisplayListSet& aLists) | |
| 161 { | |
| 162 // only paint the selected box | |
| 163 nsIFrame* box = GetSelectedBox(); | |
| 164 if (!box) | |
| 165 return; | |
| 166 | |
| 167 // Putting the child in the background list. This is a little weird but | |
| 168 // it matches what we were doing before. | |
| 169 nsDisplayListSet set(aLists, aLists.BlockBorderBackgrounds()); | |
| 170 BuildDisplayListForChild(aBuilder, box, aDirtyRect, set); | |
| 171 } | |
| 172 | |
| 173 NS_IMETHODIMP | |
| 174 nsDeckFrame::DoLayout(nsBoxLayoutState& aState) | |
| 175 { | |
| 176 // Make sure we tweak the state so it does not resize our children. | |
| 177 // We will do that. | |
| 178 uint32_t oldFlags = aState.LayoutFlags(); | |
| 179 aState.SetLayoutFlags(NS_FRAME_NO_SIZE_VIEW | NS_FRAME_NO_VISIBILITY); | |
| 180 | |
| 181 // do a normal layout | |
| 182 nsresult rv = nsBoxFrame::DoLayout(aState); | |
| 183 | |
| 184 // run though each child. Hide all but the selected one | |
| 185 nsIFrame* box = GetChildBox(); | |
| 186 | |
| 187 nscoord count = 0; | |
| 188 while (box) | |
| 189 { | |
| 190 // make collapsed children not show up | |
| 191 if (count != mIndex) | |
| 192 HideBox(box); | |
| 193 | |
| 194 box = box->GetNextBox(); | |
| 195 count++; | |
| 196 } | |
| 197 | |
| 198 aState.SetLayoutFlags(oldFlags); | |
| 199 | |
| 200 return rv; | |
| 201 } | |
| 202 |
