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| 1 /* | 1 /* |
| 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| 3 * (C) 2000 Simon Hausmann <hausmann@kde.org> | 3 * (C) 2000 Simon Hausmann <hausmann@kde.org> |
| 4 * Copyright (C) 2006, 2009 Apple Inc. All rights reserved. | 4 * Copyright (C) 2006, 2009 Apple Inc. All rights reserved. |
| 5 * | 5 * |
| 6 * This library is free software; you can redistribute it and/or | 6 * This library is free software; you can redistribute it and/or |
| 7 * modify it under the terms of the GNU Library General Public | 7 * modify it under the terms of the GNU Library General Public |
| 8 * License as published by the Free Software Foundation; either | 8 * License as published by the Free Software Foundation; either |
| 9 * version 2 of the License, or (at your option) any later version. | 9 * version 2 of the License, or (at your option) any later version. |
| 10 * | 10 * |
| 11 * This library is distributed in the hope that it will be useful, | 11 * This library is distributed in the hope that it will be useful, |
| 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 * Library General Public License for more details. | 14 * Library General Public License for more details. |
| 15 * | 15 * |
| 16 * You should have received a copy of the GNU Library General Public License | 16 * You should have received a copy of the GNU Library General Public License |
| 17 * along with this library; see the file COPYING.LIB. If not, write to | 17 * along with this library; see the file COPYING.LIB. If not, write to |
| 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 19 * Boston, MA 02110-1301, USA. | 19 * Boston, MA 02110-1301, USA. |
| 20 * | 20 * |
| 21 */ | 21 */ |
| 22 | 22 |
| 23 #ifndef LayoutPart_h | 23 #ifndef LayoutPart_h |
| 24 #define LayoutPart_h | 24 #define LayoutPart_h |
| 25 | 25 |
| 26 #include "core/CoreExport.h" | 26 #include "core/CoreExport.h" |
| 27 #include "core/layout/LayoutReplaced.h" | 27 #include "core/layout/LayoutReplaced.h" |
| 28 #include "core/plugins/PluginView.h" |
| 28 #include "platform/FrameViewBase.h" | 29 #include "platform/FrameViewBase.h" |
| 29 | 30 |
| 30 namespace blink { | 31 namespace blink { |
| 31 | 32 |
| 32 // LayoutObject for frames via LayoutFrame and LayoutIFrame, and plugins via | 33 // LayoutObject for frames via LayoutFrame and LayoutIFrame, and plugins via |
| 33 // LayoutEmbeddedObject. | 34 // LayoutEmbeddedObject. |
| 34 class CORE_EXPORT LayoutPart : public LayoutReplaced { | 35 class CORE_EXPORT LayoutPart : public LayoutReplaced { |
| 35 public: | 36 public: |
| 36 explicit LayoutPart(Element*); | 37 explicit LayoutPart(Element*); |
| 37 ~LayoutPart() override; | 38 ~LayoutPart() override; |
| 38 | 39 |
| 39 bool requiresAcceleratedCompositing() const; | 40 bool requiresAcceleratedCompositing() const; |
| 40 | 41 |
| 41 bool needsPreferredWidthsRecalculation() const final; | 42 bool needsPreferredWidthsRecalculation() const final; |
| 42 | 43 |
| 43 bool nodeAtPoint(HitTestResult&, | 44 bool nodeAtPoint(HitTestResult&, |
| 44 const HitTestLocation& locationInContainer, | 45 const HitTestLocation& locationInContainer, |
| 45 const LayoutPoint& accumulatedOffset, | 46 const LayoutPoint& accumulatedOffset, |
| 46 HitTestAction) override; | 47 HitTestAction) override; |
| 47 | 48 |
| 48 void ref() { ++m_refCount; } | 49 void ref() { ++m_refCount; } |
| 49 void deref(); | 50 void deref(); |
| 50 | 51 |
| 51 FrameViewBase* frameViewBase() const; | 52 FrameViewBase* frameViewBase() const; |
| 53 PluginView* plugin() const; |
| 52 | 54 |
| 53 LayoutRect replacedContentRect() const final; | 55 LayoutRect replacedContentRect() const final; |
| 54 | 56 |
| 55 void updateOnWidgetChange(); | 57 void updateOnWidgetChange(); |
| 56 void updateGeometry(); | 58 void updateGeometry(); |
| 57 | 59 |
| 58 bool isLayoutPart() const final { return true; } | 60 bool isLayoutPart() const final { return true; } |
| 59 virtual void paintContents(const PaintInfo&, const LayoutPoint&) const; | 61 virtual void paintContents(const PaintInfo&, const LayoutPoint&) const; |
| 60 | 62 |
| 61 bool isThrottledFrameView() const; | 63 bool isThrottledFrameView() const; |
| 62 | 64 |
| 63 protected: | 65 protected: |
| 64 PaintLayerType layerTypeRequired() const override; | 66 PaintLayerType layerTypeRequired() const override; |
| 65 | 67 |
| 66 void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) final; | 68 void styleDidChange(StyleDifference, const ComputedStyle* oldStyle) final; |
| 67 void layout() override; | 69 void layout() override; |
| 68 void paint(const PaintInfo&, const LayoutPoint&) const override; | 70 void paint(const PaintInfo&, const LayoutPoint&) const override; |
| 69 CursorDirective getCursor(const LayoutPoint&, Cursor&) const final; | 71 CursorDirective getCursor(const LayoutPoint&, Cursor&) const final; |
| 70 | 72 |
| 71 // Overridden to invalidate the child frame if any. | 73 // Overridden to invalidate the child frame if any. |
| 72 void invalidatePaintOfSubtreesIfNeeded( | 74 void invalidatePaintOfSubtreesIfNeeded( |
| 73 const PaintInvalidationState&) override; | 75 const PaintInvalidationState&) override; |
| 74 | 76 |
| 75 private: | 77 private: |
| 76 void updateGeometryInternal(); | 78 void updateGeometryInternal(FrameViewBase&); |
| 77 CompositingReasons additionalCompositingReasons() const override; | 79 CompositingReasons additionalCompositingReasons() const override; |
| 78 | 80 |
| 79 void willBeDestroyed() final; | 81 void willBeDestroyed() final; |
| 80 void destroy() final; | 82 void destroy() final; |
| 81 | 83 |
| 82 bool nodeAtPointOverFrameViewBase(HitTestResult&, | 84 bool nodeAtPointOverFrameViewBase(HitTestResult&, |
| 83 const HitTestLocation& locationInContainer, | 85 const HitTestLocation& locationInContainer, |
| 84 const LayoutPoint& accumulatedOffset, | 86 const LayoutPoint& accumulatedOffset, |
| 85 HitTestAction); | 87 HitTestAction); |
| 86 | 88 |
| 87 int m_refCount; | 89 int m_refCount; |
| 88 }; | 90 }; |
| 89 | 91 |
| 90 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutPart, isLayoutPart()); | 92 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutPart, isLayoutPart()); |
| 91 | 93 |
| 92 } // namespace blink | 94 } // namespace blink |
| 93 | 95 |
| 94 #endif // LayoutPart_h | 96 #endif // LayoutPart_h |
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