WebCore/RenderTextControlSingleLine.h

   1 /*
   2  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public License
  15  * along with this library; see the file COPYING.LIB.  If not, write to
  16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  *
  19  */
  20
  21 #ifndef RenderTextControlSingleLine_h
  22 #define RenderTextControlSingleLine_h
  23
  24 #include "PopupMenuClient.h"
  25 #include "RenderTextControl.h"
  26 #include "Timer.h"
  27
  28 namespace WebCore {
  29
  30 class InputElement;
  31 class SearchFieldCancelButtonElement;
  32 class SearchFieldResultsButtonElement;
  33 class SearchPopupMenu;
  34 class TextControlInnerElement;
  35
  36 class RenderTextControlSingleLine : public RenderTextControl, private PopupMenuClient {
  37 public:
  38     RenderTextControlSingleLine(Node*);
  39     virtual ~RenderTextControlSingleLine();
  40
  41     virtual bool hasControlClip() const { return m_cancelButton; }
  42     virtual bool isTextField() const { return true; }
  43
  44     bool placeholderIsVisible() const { return m_placeholderVisible; }
  45     bool placeholderShouldBeVisible() const;
  46     void updatePlaceholderVisibility();
  47
  48     void addSearchResult();
  49     void stopSearchEventTimer();
  50
  51     bool popupIsVisible() const { return m_searchPopupIsVisible; }
  52     void showPopup();
  53     virtual void hidePopup(); // PopupMenuClient method
  54
  55     virtual void subtreeHasChanged();
  56     virtual void paint(PaintInfo&, int tx, int ty);
  57     virtual void layout();
  58
  59     virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
  60     void forwardEvent(Event*);
  61
  62 private:
  63     virtual void capsLockStateMayHaveChanged();
  64
  65     int textBlockWidth() const;
  66     virtual int preferredContentWidth(float charWidth) const;
  67     virtual void adjustControlHeightBasedOnLineHeight(int lineHeight);
  68
  69     void createSubtreeIfNeeded();
  70     virtual void updateFromElement();
  71     virtual void cacheSelection(int start, int end);
  72     virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
  73
  74     virtual PassRefPtr<RenderStyle> createInnerTextStyle(const RenderStyle* startStyle) const;
  75     PassRefPtr<RenderStyle> createInnerBlockStyle(const RenderStyle* startStyle) const;
  76     PassRefPtr<RenderStyle> createResultsButtonStyle(const RenderStyle* startStyle) const;
  77     PassRefPtr<RenderStyle> createCancelButtonStyle(const RenderStyle* startStyle) const;
  78
  79     void updateCancelButtonVisibility() const;
  80     EVisibility visibilityForCancelButton() const;
  81     const AtomicString& autosaveName() const;
  82
  83     void startSearchEventTimer();
  84     void searchEventTimerFired(Timer<RenderTextControlSingleLine>*);
  85
  86 private:
  87     // PopupMenuClient methods
  88     virtual void valueChanged(unsigned listIndex, bool fireEvents = true);
  89     virtual String itemText(unsigned listIndex) const;
  90     virtual bool itemIsEnabled(unsigned listIndex) const;
  91     virtual PopupMenuStyle itemStyle(unsigned listIndex) const;
  92     virtual PopupMenuStyle menuStyle() const;
  93     virtual int clientInsetLeft() const;
  94     virtual int clientInsetRight() const;
  95     virtual int clientPaddingLeft() const;
  96     virtual int clientPaddingRight() const;
  97     virtual int listSize() const;
  98     virtual int selectedIndex() const;
  99     virtual bool itemIsSeparator(unsigned listIndex) const;
 100     virtual bool itemIsLabel(unsigned listIndex) const;
 101     virtual bool itemIsSelected(unsigned listIndex) const;
 102     virtual bool shouldPopOver() const { return false; }
 103     virtual bool valueShouldChangeOnHotTrack() const { return false; }
 104     virtual void setTextFromItem(unsigned listIndex);
 105     virtual FontSelector* fontSelector() const;
 106     virtual HostWindow* hostWindow() const;
 107     virtual PassRefPtr<Scrollbar> createScrollbar(ScrollbarClient*, ScrollbarOrientation, ScrollbarControlSize);
 108
 109     InputElement* inputElement() const;
 110
 111 private:
 112     bool m_placeholderVisible;
 113     bool m_searchPopupIsVisible;
 114     bool m_shouldDrawCapsLockIndicator;
 115
 116     RefPtr<TextControlInnerElement> m_innerBlock;
 117     RefPtr<SearchFieldResultsButtonElement> m_resultsButton;
 118     RefPtr<SearchFieldCancelButtonElement> m_cancelButton;
 119
 120     Timer<RenderTextControlSingleLine> m_searchEventTimer;
 121     RefPtr<SearchPopupMenu> m_searchPopup;
 122     Vector<String> m_recentSearches;
 123 };
 124
 125 }
 126
 127 #endif