1 /* 2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. 3 * (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 * 20 */ 21 22 #ifndef RenderTextControl_h 23 #define RenderTextControl_h 24 25 #include "RenderBlock.h" 26 27 namespace WebCore { 28 29 class FormControlElement; 30 class Selection; 31 class TextControlInnerElement; 32 class TextControlInnerTextElement; 33 34 class RenderTextControl : public RenderBlock { 35 public: 36 virtual ~RenderTextControl(); 37 renderName()38 virtual const char* renderName() const { return "RenderTextControl"; } hasControlClip()39 virtual bool hasControlClip() const { return false; } 40 virtual IntRect controlClipRect(int tx, int ty) const; 41 virtual void calcHeight(); 42 virtual void calcPrefWidths(); removeLeftoverAnonymousBlock(RenderBlock *)43 virtual void removeLeftoverAnonymousBlock(RenderBlock*) { } 44 virtual void updateFromElement(); canHaveChildren()45 virtual bool canHaveChildren() const { return false; } avoidsFloats()46 virtual bool avoidsFloats() const { return true; } 47 isEdited()48 virtual bool isEdited() const { return m_edited; } setEdited(bool isEdited)49 virtual void setEdited(bool isEdited) { m_edited = isEdited; } 50 isUserEdited()51 bool isUserEdited() const { return m_userEdited; } 52 void setUserEdited(bool isUserEdited); 53 54 int selectionStart(); 55 int selectionEnd(); 56 void setSelectionStart(int); 57 void setSelectionEnd(int); 58 void select(); 59 void setSelectionRange(int start, int end); 60 Selection selection(int start, int end) const; 61 62 virtual void subtreeHasChanged(); 63 String text(); 64 String textWithHardLineBreaks(); 65 void selectionChanged(bool userTriggered); 66 67 virtual void addFocusRingRects(GraphicsContext*, int tx, int ty); 68 canBeProgramaticallyScrolled(bool)69 virtual bool canBeProgramaticallyScrolled(bool) const { return true; } 70 virtual void autoscroll(); 71 72 // Subclassed to forward to our inner div. 73 virtual int scrollLeft() const; 74 virtual int scrollTop() const; 75 virtual int scrollWidth() const; 76 virtual int scrollHeight() const; 77 virtual void setScrollLeft(int); 78 virtual void setScrollTop(int); 79 virtual bool scroll(ScrollDirection, ScrollGranularity, float multiplier = 1.0f); 80 81 VisiblePosition visiblePositionForIndex(int index); 82 int indexForVisiblePosition(const VisiblePosition&); 83 84 protected: 85 RenderTextControl(Node*); 86 87 int scrollbarThickness() const; 88 void adjustInnerTextStyle(const RenderStyle* startStyle, RenderStyle* textBlockStyle) const; 89 void setInnerTextValue(const String&); 90 91 virtual void styleDidChange(RenderStyle::Diff, const RenderStyle* oldStyle); 92 93 void createSubtreeIfNeeded(TextControlInnerElement* innerBlock); 94 void hitInnerTextBlock(HitTestResult&, int x, int y, int tx, int ty); 95 void forwardEvent(Event*); 96 97 int textBlockWidth() const; 98 int textBlockHeight() const; 99 100 virtual int preferredContentWidth(float charWidth) const = 0; 101 virtual void adjustControlHeightBasedOnLineHeight(int lineHeight) = 0; 102 virtual void cacheSelection(int start, int end) = 0; 103 virtual PassRefPtr<RenderStyle> createInnerTextStyle(const RenderStyle* startStyle) const = 0; 104 105 friend class TextIterator; 106 HTMLElement* innerTextElement() const; 107 108 FormControlElement* formControlElement() const; 109 110 private: 111 String finishText(Vector<UChar>&) const; 112 113 bool m_edited; 114 bool m_userEdited; 115 RefPtr<TextControlInnerTextElement> m_innerText; 116 }; 117 118 } // namespace WebCore 119 120 #endif // RenderTextControl_h 121