1/*
2 * Copyright (C) 2006, 2007, 2009 Apple Inc. All rights reserved.
3 * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
4 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14 * Library General Public License for more details.
15 *
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
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
20 *
21 */
22
23#ifndef RenderTextControlSingleLine_h
24#define RenderTextControlSingleLine_h
25
26#include "core/html/HTMLInputElement.h"
27#include "core/rendering/RenderTextControl.h"
28
29namespace blink {
30
31class HTMLInputElement;
32
33class RenderTextControlSingleLine : public RenderTextControl {
34public:
35    RenderTextControlSingleLine(HTMLInputElement*);
36    virtual ~RenderTextControlSingleLine();
37    // FIXME: Move createInnerEditorStyle() to TextControlInnerEditorElement.
38    virtual PassRefPtr<RenderStyle> createInnerEditorStyle(const RenderStyle* startStyle) const OVERRIDE FINAL;
39
40    void capsLockStateMayHaveChanged();
41
42protected:
43    virtual void centerContainerIfNeeded(RenderBox*) const { }
44    virtual LayoutUnit computeLogicalHeightLimit() const;
45    Element* containerElement() const;
46    Element* editingViewPortElement() const;
47    HTMLInputElement* inputElement() const;
48
49private:
50    virtual bool hasControlClip() const OVERRIDE FINAL;
51    virtual LayoutRect controlClipRect(const LayoutPoint&) const OVERRIDE FINAL;
52    virtual bool isTextField() const OVERRIDE FINAL { return true; }
53
54    virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE;
55    virtual void layout() OVERRIDE;
56
57    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) OVERRIDE FINAL;
58
59    virtual void autoscroll(const IntPoint&) OVERRIDE FINAL;
60
61    // Subclassed to forward to our inner div.
62    virtual LayoutUnit scrollLeft() const OVERRIDE FINAL;
63    virtual LayoutUnit scrollTop() const OVERRIDE FINAL;
64    virtual LayoutUnit scrollWidth() const OVERRIDE FINAL;
65    virtual LayoutUnit scrollHeight() const OVERRIDE FINAL;
66    virtual void setScrollLeft(LayoutUnit) OVERRIDE FINAL;
67    virtual void setScrollTop(LayoutUnit) OVERRIDE FINAL;
68
69    int textBlockWidth() const;
70    virtual float getAvgCharWidth(AtomicString family) OVERRIDE FINAL;
71    virtual LayoutUnit preferredContentLogicalWidth(float charWidth) const OVERRIDE FINAL;
72    virtual LayoutUnit computeControlLogicalHeight(LayoutUnit lineHeight, LayoutUnit nonContentHeight) const OVERRIDE;
73
74    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE FINAL;
75
76    bool textShouldBeTruncated() const;
77
78    HTMLElement* innerSpinButtonElement() const;
79
80    bool m_shouldDrawCapsLockIndicator;
81    LayoutUnit m_desiredInnerEditorLogicalHeight;
82};
83
84DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderTextControlSingleLine, isTextField());
85
86// ----------------------------
87
88class RenderTextControlInnerBlock : public RenderBlockFlow {
89public:
90    RenderTextControlInnerBlock(Element* element) : RenderBlockFlow(element) { }
91    virtual int inlineBlockBaseline(LineDirectionMode direction) const OVERRIDE { return lastLineBoxBaseline(direction); }
92
93private:
94    virtual bool isIntristicallyScrollable(ScrollbarOrientation orientation) const OVERRIDE
95    {
96        return orientation == HorizontalScrollbar;
97    }
98    virtual bool scrollsOverflowX() const OVERRIDE { return hasOverflowClip(); }
99    virtual bool scrollsOverflowY() const OVERRIDE { return false; }
100    virtual bool hasLineIfEmpty() const OVERRIDE { return true; }
101};
102
103}
104
105#endif
106