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1 /* | 1 /* |
2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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44 , m_inUpdateScrollbars(false) | 44 , m_inUpdateScrollbars(false) |
45 , m_drawPanScrollIcon(false) | 45 , m_drawPanScrollIcon(false) |
46 , m_clipsRepaints(true) | 46 , m_clipsRepaints(true) |
47 { | 47 { |
48 } | 48 } |
49 | 49 |
50 ScrollView::~ScrollView() | 50 ScrollView::~ScrollView() |
51 { | 51 { |
52 } | 52 } |
53 | 53 |
54 void ScrollView::addChild(PassRefPtr<Widget> prpChild) | 54 void ScrollView::trace(Visitor* visitor) |
| 55 { |
| 56 #if ENABLE(OILPAN) |
| 57 visitor->trace(m_horizontalScrollbar); |
| 58 visitor->trace(m_verticalScrollbar); |
| 59 visitor->trace(m_children); |
| 60 #endif |
| 61 Widget::trace(visitor); |
| 62 } |
| 63 |
| 64 void ScrollView::addChild(PassRefPtrWillBeRawPtr<Widget> prpChild) |
55 { | 65 { |
56 Widget* child = prpChild.get(); | 66 Widget* child = prpChild.get(); |
57 ASSERT(child != this && !child->parent()); | 67 ASSERT(child != this && !child->parent()); |
58 child->setParent(this); | 68 child->setParent(this); |
59 m_children.add(prpChild); | 69 m_children.add(prpChild); |
60 } | 70 } |
61 | 71 |
62 void ScrollView::removeChild(Widget* child) | 72 void ScrollView::removeChild(Widget* child) |
63 { | 73 { |
64 ASSERT(child->parent() == this); | 74 ASSERT(child->parent() == this); |
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95 willRemoveScrollbar(m_verticalScrollbar.get(), VerticalScrollbar); | 105 willRemoveScrollbar(m_verticalScrollbar.get(), VerticalScrollbar); |
96 // If the scrollbar has been marked as overlapping the window resizer, | 106 // If the scrollbar has been marked as overlapping the window resizer, |
97 // then its removal should reduce the count. | 107 // then its removal should reduce the count. |
98 if (m_verticalScrollbar->overlapsResizer()) | 108 if (m_verticalScrollbar->overlapsResizer()) |
99 adjustScrollbarsAvoidingResizerCount(-1); | 109 adjustScrollbarsAvoidingResizerCount(-1); |
100 removeChild(m_verticalScrollbar.get()); | 110 removeChild(m_verticalScrollbar.get()); |
101 m_verticalScrollbar = nullptr; | 111 m_verticalScrollbar = nullptr; |
102 } | 112 } |
103 } | 113 } |
104 | 114 |
105 PassRefPtr<Scrollbar> ScrollView::createScrollbar(ScrollbarOrientation orientati
on) | 115 PassRefPtrWillBeRawPtr<Scrollbar> ScrollView::createScrollbar(ScrollbarOrientati
on orientation) |
106 { | 116 { |
107 return Scrollbar::create(this, orientation, RegularScrollbar); | 117 return Scrollbar::create(this, orientation, RegularScrollbar); |
108 } | 118 } |
109 | 119 |
110 void ScrollView::setScrollbarModes(ScrollbarMode horizontalMode, ScrollbarMode v
erticalMode, | 120 void ScrollView::setScrollbarModes(ScrollbarMode horizontalMode, ScrollbarMode v
erticalMode, |
111 bool horizontalLock, bool verticalLock) | 121 bool horizontalLock, bool verticalLock) |
112 { | 122 { |
113 bool needsUpdate = false; | 123 bool needsUpdate = false; |
114 | 124 |
115 if (horizontalMode != horizontalScrollbarMode() && !m_horizontalScrollbarLoc
k) { | 125 if (horizontalMode != horizontalScrollbarMode() && !m_horizontalScrollbarLoc
k) { |
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769 | 779 |
770 Widget::setFrameRect(newRect); | 780 Widget::setFrameRect(newRect); |
771 | 781 |
772 updateScrollbars(scrollOffset()); | 782 updateScrollbars(scrollOffset()); |
773 | 783 |
774 frameRectsChanged(); | 784 frameRectsChanged(); |
775 } | 785 } |
776 | 786 |
777 void ScrollView::frameRectsChanged() | 787 void ScrollView::frameRectsChanged() |
778 { | 788 { |
779 HashSet<RefPtr<Widget> >::const_iterator end = m_children.end(); | 789 ChildrenWidgetSet::const_iterator end = m_children.end(); |
780 for (HashSet<RefPtr<Widget> >::const_iterator current = m_children.begin();
current != end; ++current) | 790 for (ChildrenWidgetSet::const_iterator current = m_children.begin(); current
!= end; ++current) |
781 (*current)->frameRectsChanged(); | 791 (*current)->frameRectsChanged(); |
782 } | 792 } |
783 | 793 |
784 static void positionScrollbarLayer(GraphicsLayer* graphicsLayer, Scrollbar* scro
llbar) | 794 static void positionScrollbarLayer(GraphicsLayer* graphicsLayer, Scrollbar* scro
llbar) |
785 { | 795 { |
786 if (!graphicsLayer || !scrollbar) | 796 if (!graphicsLayer || !scrollbar) |
787 return; | 797 return; |
788 | 798 |
789 IntRect scrollbarRect = scrollbar->frameRect(); | 799 IntRect scrollbarRect = scrollbar->frameRect(); |
790 graphicsLayer->setPosition(scrollbarRect.location()); | 800 graphicsLayer->setPosition(scrollbarRect.location()); |
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1107 void ScrollView::setParentVisible(bool visible) | 1117 void ScrollView::setParentVisible(bool visible) |
1108 { | 1118 { |
1109 if (isParentVisible() == visible) | 1119 if (isParentVisible() == visible) |
1110 return; | 1120 return; |
1111 | 1121 |
1112 Widget::setParentVisible(visible); | 1122 Widget::setParentVisible(visible); |
1113 | 1123 |
1114 if (!isSelfVisible()) | 1124 if (!isSelfVisible()) |
1115 return; | 1125 return; |
1116 | 1126 |
1117 HashSet<RefPtr<Widget> >::iterator end = m_children.end(); | 1127 ChildrenWidgetSet::const_iterator end = m_children.end(); |
1118 for (HashSet<RefPtr<Widget> >::iterator it = m_children.begin(); it != end;
++it) | 1128 for (ChildrenWidgetSet::const_iterator it = m_children.begin(); it != end; +
+it) |
1119 (*it)->setParentVisible(visible); | 1129 (*it)->setParentVisible(visible); |
1120 } | 1130 } |
1121 | 1131 |
1122 void ScrollView::show() | 1132 void ScrollView::show() |
1123 { | 1133 { |
1124 if (!isSelfVisible()) { | 1134 if (!isSelfVisible()) { |
1125 setSelfVisible(true); | 1135 setSelfVisible(true); |
1126 if (isParentVisible()) { | 1136 if (isParentVisible()) { |
1127 HashSet<RefPtr<Widget> >::iterator end = m_children.end(); | 1137 ChildrenWidgetSet::const_iterator end = m_children.end(); |
1128 for (HashSet<RefPtr<Widget> >::iterator it = m_children.begin(); it
!= end; ++it) | 1138 for (ChildrenWidgetSet::const_iterator it = m_children.begin(); it !
= end; ++it) |
1129 (*it)->setParentVisible(true); | 1139 (*it)->setParentVisible(true); |
1130 } | 1140 } |
1131 } | 1141 } |
1132 | 1142 |
1133 Widget::show(); | 1143 Widget::show(); |
1134 } | 1144 } |
1135 | 1145 |
1136 void ScrollView::hide() | 1146 void ScrollView::hide() |
1137 { | 1147 { |
1138 if (isSelfVisible()) { | 1148 if (isSelfVisible()) { |
1139 if (isParentVisible()) { | 1149 if (isParentVisible()) { |
1140 HashSet<RefPtr<Widget> >::iterator end = m_children.end(); | 1150 ChildrenWidgetSet::const_iterator end = m_children.end(); |
1141 for (HashSet<RefPtr<Widget> >::iterator it = m_children.begin(); it
!= end; ++it) | 1151 for (ChildrenWidgetSet::const_iterator it = m_children.begin(); it !
= end; ++it) |
1142 (*it)->setParentVisible(false); | 1152 (*it)->setParentVisible(false); |
1143 } | 1153 } |
1144 setSelfVisible(false); | 1154 setSelfVisible(false); |
1145 } | 1155 } |
1146 | 1156 |
1147 Widget::hide(); | 1157 Widget::hide(); |
1148 } | 1158 } |
1149 | 1159 |
1150 void ScrollView::addPanScrollIcon(const IntPoint& iconPosition) | 1160 void ScrollView::addPanScrollIcon(const IntPoint& iconPosition) |
1151 { | 1161 { |
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1172 return; | 1182 return; |
1173 | 1183 |
1174 ScrollableArea::setScrollOrigin(origin); | 1184 ScrollableArea::setScrollOrigin(origin); |
1175 | 1185 |
1176 // Update if the scroll origin changes, since our position will be different
if the content size did not change. | 1186 // Update if the scroll origin changes, since our position will be different
if the content size did not change. |
1177 if (updatePositionAtAll && updatePositionSynchronously) | 1187 if (updatePositionAtAll && updatePositionSynchronously) |
1178 updateScrollbars(scrollOffset()); | 1188 updateScrollbars(scrollOffset()); |
1179 } | 1189 } |
1180 | 1190 |
1181 } // namespace blink | 1191 } // namespace blink |
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