RenderTextControlSingleLine.h revision 635860845790a19bf50bbc51ba8fb66a96dde068 
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
28namespace WebCore {
29
30class InputElement;
31class SearchFieldCancelButtonElement;
32class SearchFieldResultsButtonElement;
33class SearchPopupMenu;
34class TextControlInnerElement;
35
36class RenderTextControlSingleLine : public RenderTextControl, private PopupMenuClient {
37public:
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
62private:
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(RenderStyle::Diff, 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(RenderStyle*) const;
80    const AtomicString& autosaveName() const;
81
82    void startSearchEventTimer();
83    void searchEventTimerFired(Timer<RenderTextControlSingleLine>*);
84
85private:
86    // PopupMenuClient methods
87    virtual void valueChanged(unsigned listIndex, bool fireEvents = true);
88    virtual String itemText(unsigned listIndex) const;
89    virtual bool itemIsEnabled(unsigned listIndex) const;
90    virtual PopupMenuStyle itemStyle(unsigned listIndex) const;
91    virtual PopupMenuStyle menuStyle() const;
92    virtual int clientInsetLeft() const;
93    virtual int clientInsetRight() const;
94    virtual int clientPaddingLeft() const;
95    virtual int clientPaddingRight() const;
96    virtual int listSize() const;
97    virtual int selectedIndex() const;
98    virtual bool itemIsSeparator(unsigned listIndex) const;
99    virtual bool itemIsLabel(unsigned listIndex) const;
100    virtual bool itemIsSelected(unsigned listIndex) const;
101    virtual bool shouldPopOver() const { return false; }
102    virtual bool valueShouldChangeOnHotTrack() const { return false; }
103    virtual void setTextFromItem(unsigned listIndex);
104    virtual FontSelector* fontSelector() const;
105    virtual HostWindow* hostWindow() const;
106    virtual PassRefPtr<Scrollbar> createScrollbar(ScrollbarClient*, ScrollbarOrientation, ScrollbarControlSize);
107
108    InputElement* inputElement() const;
109
110private:
111    bool m_placeholderVisible;
112    bool m_searchPopupIsVisible;
113    bool m_shouldDrawCapsLockIndicator;
114
115    RefPtr<TextControlInnerElement> m_innerBlock;
116    RefPtr<SearchFieldResultsButtonElement> m_resultsButton;
117    RefPtr<SearchFieldCancelButtonElement> m_cancelButton;
118
119    Timer<RenderTextControlSingleLine> m_searchEventTimer;
120    RefPtr<SearchPopupMenu> m_searchPopup;
121    Vector<String> m_recentSearches;
122};
123
124}
125
126#endif
127