The Tor Browser / file comparison
comparison: layout/xul/tree/nsTreeColFrame.cpp
layout/xul/tree/nsTreeColFrame.cpp
- branch
- TOR_BUG_3246
- changeset 6
- 8bccb770b82d
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deleted
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replaced
| -1:000000000000 | 0:5f40e950be79 |
|---|---|
| 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 "nsTreeColFrame.h" | |
| 8 #include "nsGkAtoms.h" | |
| 9 #include "nsIContent.h" | |
| 10 #include "nsStyleContext.h" | |
| 11 #include "nsNameSpaceManager.h" | |
| 12 #include "nsIBoxObject.h" | |
| 13 #include "nsTreeBoxObject.h" | |
| 14 #include "nsIDOMElement.h" | |
| 15 #include "nsITreeBoxObject.h" | |
| 16 #include "nsITreeColumns.h" | |
| 17 #include "nsIDOMXULTreeElement.h" | |
| 18 #include "nsDisplayList.h" | |
| 19 #include "nsTreeBodyFrame.h" | |
| 20 | |
| 21 // | |
| 22 // NS_NewTreeColFrame | |
| 23 // | |
| 24 // Creates a new col frame | |
| 25 // | |
| 26 nsIFrame* | |
| 27 NS_NewTreeColFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) | |
| 28 { | |
| 29 return new (aPresShell) nsTreeColFrame(aPresShell, aContext); | |
| 30 } | |
| 31 | |
| 32 NS_IMPL_FRAMEARENA_HELPERS(nsTreeColFrame) | |
| 33 | |
| 34 // Destructor | |
| 35 nsTreeColFrame::~nsTreeColFrame() | |
| 36 { | |
| 37 } | |
| 38 | |
| 39 void | |
| 40 nsTreeColFrame::Init(nsIContent* aContent, | |
| 41 nsIFrame* aParent, | |
| 42 nsIFrame* aPrevInFlow) | |
| 43 { | |
| 44 nsBoxFrame::Init(aContent, aParent, aPrevInFlow); | |
| 45 InvalidateColumns(); | |
| 46 } | |
| 47 | |
| 48 void | |
| 49 nsTreeColFrame::DestroyFrom(nsIFrame* aDestructRoot) | |
| 50 { | |
| 51 InvalidateColumns(false); | |
| 52 nsBoxFrame::DestroyFrom(aDestructRoot); | |
| 53 } | |
| 54 | |
| 55 class nsDisplayXULTreeColSplitterTarget : public nsDisplayItem { | |
| 56 public: | |
| 57 nsDisplayXULTreeColSplitterTarget(nsDisplayListBuilder* aBuilder, | |
| 58 nsIFrame* aFrame) : | |
| 59 nsDisplayItem(aBuilder, aFrame) { | |
| 60 MOZ_COUNT_CTOR(nsDisplayXULTreeColSplitterTarget); | |
| 61 } | |
| 62 #ifdef NS_BUILD_REFCNT_LOGGING | |
| 63 virtual ~nsDisplayXULTreeColSplitterTarget() { | |
| 64 MOZ_COUNT_DTOR(nsDisplayXULTreeColSplitterTarget); | |
| 65 } | |
| 66 #endif | |
| 67 | |
| 68 virtual void HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect, | |
| 69 HitTestState* aState, | |
| 70 nsTArray<nsIFrame*> *aOutFrames) MOZ_OVERRIDE; | |
| 71 NS_DISPLAY_DECL_NAME("XULTreeColSplitterTarget", TYPE_XUL_TREE_COL_SPLITTER_TARGET) | |
| 72 }; | |
| 73 | |
| 74 void | |
| 75 nsDisplayXULTreeColSplitterTarget::HitTest(nsDisplayListBuilder* aBuilder, const nsRect& aRect, | |
| 76 HitTestState* aState, nsTArray<nsIFrame*> *aOutFrames) | |
| 77 { | |
| 78 nsRect rect = aRect - ToReferenceFrame(); | |
| 79 // If we are in either in the first 4 pixels or the last 4 pixels, we're going to | |
| 80 // do something really strange. Check for an adjacent splitter. | |
| 81 bool left = false; | |
| 82 bool right = false; | |
| 83 if (mFrame->GetSize().width - nsPresContext::CSSPixelsToAppUnits(4) <= rect.XMost()) { | |
| 84 right = true; | |
| 85 } else if (nsPresContext::CSSPixelsToAppUnits(4) > rect.x) { | |
| 86 left = true; | |
| 87 } | |
| 88 | |
| 89 // Swap left and right for RTL trees in order to find the correct splitter | |
| 90 if (mFrame->StyleVisibility()->mDirection == NS_STYLE_DIRECTION_RTL) { | |
| 91 bool tmp = left; | |
| 92 left = right; | |
| 93 right = tmp; | |
| 94 } | |
| 95 | |
| 96 if (left || right) { | |
| 97 // We are a header. Look for the correct splitter. | |
| 98 nsIFrame* child; | |
| 99 if (left) | |
| 100 child = mFrame->GetPrevSibling(); | |
| 101 else | |
| 102 child = mFrame->GetNextSibling(); | |
| 103 | |
| 104 if (child && child->GetContent()->NodeInfo()->Equals(nsGkAtoms::splitter, | |
| 105 kNameSpaceID_XUL)) { | |
| 106 aOutFrames->AppendElement(child); | |
| 107 } | |
| 108 } | |
| 109 | |
| 110 } | |
| 111 | |
| 112 void | |
| 113 nsTreeColFrame::BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder, | |
| 114 const nsRect& aDirtyRect, | |
| 115 const nsDisplayListSet& aLists) | |
| 116 { | |
| 117 if (!aBuilder->IsForEventDelivery()) { | |
| 118 nsBoxFrame::BuildDisplayListForChildren(aBuilder, aDirtyRect, aLists); | |
| 119 return; | |
| 120 } | |
| 121 | |
| 122 nsDisplayListCollection set; | |
| 123 nsBoxFrame::BuildDisplayListForChildren(aBuilder, aDirtyRect, set); | |
| 124 | |
| 125 WrapListsInRedirector(aBuilder, set, aLists); | |
| 126 | |
| 127 aLists.Content()->AppendNewToTop(new (aBuilder) | |
| 128 nsDisplayXULTreeColSplitterTarget(aBuilder, this)); | |
| 129 } | |
| 130 | |
| 131 nsresult | |
| 132 nsTreeColFrame::AttributeChanged(int32_t aNameSpaceID, | |
| 133 nsIAtom* aAttribute, | |
| 134 int32_t aModType) | |
| 135 { | |
| 136 nsresult rv = nsBoxFrame::AttributeChanged(aNameSpaceID, aAttribute, | |
| 137 aModType); | |
| 138 | |
| 139 if (aAttribute == nsGkAtoms::ordinal || aAttribute == nsGkAtoms::primary) { | |
| 140 InvalidateColumns(); | |
| 141 } | |
| 142 | |
| 143 return rv; | |
| 144 } | |
| 145 | |
| 146 void | |
| 147 nsTreeColFrame::SetBounds(nsBoxLayoutState& aBoxLayoutState, | |
| 148 const nsRect& aRect, | |
| 149 bool aRemoveOverflowArea) { | |
| 150 nscoord oldWidth = mRect.width; | |
| 151 | |
| 152 nsBoxFrame::SetBounds(aBoxLayoutState, aRect, aRemoveOverflowArea); | |
| 153 if (mRect.width != oldWidth) { | |
| 154 nsITreeBoxObject* treeBoxObject = GetTreeBoxObject(); | |
| 155 if (treeBoxObject) { | |
| 156 treeBoxObject->Invalidate(); | |
| 157 } | |
| 158 } | |
| 159 } | |
| 160 | |
| 161 nsITreeBoxObject* | |
| 162 nsTreeColFrame::GetTreeBoxObject() | |
| 163 { | |
| 164 nsITreeBoxObject* result = nullptr; | |
| 165 | |
| 166 nsIContent* parent = mContent->GetParent(); | |
| 167 if (parent) { | |
| 168 nsIContent* grandParent = parent->GetParent(); | |
| 169 nsCOMPtr<nsIDOMXULElement> treeElement = do_QueryInterface(grandParent); | |
| 170 if (treeElement) { | |
| 171 nsCOMPtr<nsIBoxObject> boxObject; | |
| 172 treeElement->GetBoxObject(getter_AddRefs(boxObject)); | |
| 173 | |
| 174 nsCOMPtr<nsITreeBoxObject> treeBoxObject = do_QueryInterface(boxObject); | |
| 175 result = treeBoxObject.get(); | |
| 176 } | |
| 177 } | |
| 178 return result; | |
| 179 } | |
| 180 | |
| 181 void | |
| 182 nsTreeColFrame::InvalidateColumns(bool aCanWalkFrameTree) | |
| 183 { | |
| 184 nsITreeBoxObject* treeBoxObject = GetTreeBoxObject(); | |
| 185 if (treeBoxObject) { | |
| 186 nsCOMPtr<nsITreeColumns> columns; | |
| 187 | |
| 188 if (aCanWalkFrameTree) { | |
| 189 treeBoxObject->GetColumns(getter_AddRefs(columns)); | |
| 190 } else { | |
| 191 nsTreeBodyFrame* body = static_cast<nsTreeBoxObject*>(treeBoxObject)->GetCachedTreeBody(); | |
| 192 if (body) { | |
| 193 columns = body->Columns(); | |
| 194 } | |
| 195 } | |
| 196 | |
| 197 if (columns) | |
| 198 columns->InvalidateColumns(); | |
| 199 } | |
| 200 } |
