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#include "config.h"
23#include "core/rendering/RenderTextControlMultiLine.h"
24
25#include "core/html/HTMLTextAreaElement.h"
26#include "core/rendering/HitTestResult.h"
27
28namespace blink {
29
30RenderTextControlMultiLine::RenderTextControlMultiLine(HTMLTextAreaElement* element)
31    : RenderTextControl(element)
32{
33    ASSERT(element);
34}
35
36RenderTextControlMultiLine::~RenderTextControlMultiLine()
37{
38}
39
40bool RenderTextControlMultiLine::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction hitTestAction)
41{
42    if (!RenderTextControl::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, hitTestAction))
43        return false;
44
45    if (result.innerNode() == node() || result.innerNode() == innerEditorElement())
46        hitInnerEditorElement(result, locationInContainer.point(), accumulatedOffset);
47
48    return true;
49}
50
51float RenderTextControlMultiLine::getAvgCharWidth(AtomicString family)
52{
53    // Since Lucida Grande is the default font, we want this to match the width
54    // of Courier New, the default font for textareas in IE, Firefox and Safari Win.
55    // 1229 is the avgCharWidth value in the OS/2 table for Courier New.
56    if (family == "Lucida Grande")
57        return scaleEmToUnits(1229);
58
59    return RenderTextControl::getAvgCharWidth(family);
60}
61
62LayoutUnit RenderTextControlMultiLine::preferredContentLogicalWidth(float charWidth) const
63{
64    int factor = toHTMLTextAreaElement(node())->cols();
65    return static_cast<LayoutUnit>(ceilf(charWidth * factor)) + scrollbarThickness();
66}
67
68LayoutUnit RenderTextControlMultiLine::computeControlLogicalHeight(LayoutUnit lineHeight, LayoutUnit nonContentHeight) const
69{
70    return lineHeight * toHTMLTextAreaElement(node())->rows() + nonContentHeight;
71}
72
73int RenderTextControlMultiLine::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const
74{
75    return RenderBox::baselinePosition(baselineType, firstLine, direction, linePositionMode);
76}
77
78PassRefPtr<RenderStyle> RenderTextControlMultiLine::createInnerEditorStyle(const RenderStyle* startStyle) const
79{
80    RefPtr<RenderStyle> textBlockStyle = RenderStyle::create();
81    textBlockStyle->inheritFrom(startStyle);
82    adjustInnerEditorStyle(textBlockStyle.get());
83    textBlockStyle->setDisplay(BLOCK);
84    textBlockStyle->setUnique();
85
86    return textBlockStyle.release();
87}
88
89RenderObject* RenderTextControlMultiLine::layoutSpecialExcludedChild(bool relayoutChildren, SubtreeLayoutScope& layoutScope)
90{
91    RenderObject* placeholderRenderer = RenderTextControl::layoutSpecialExcludedChild(relayoutChildren, layoutScope);
92    if (!placeholderRenderer)
93        return 0;
94    if (!placeholderRenderer->isBox())
95        return placeholderRenderer;
96    RenderBox* placeholderBox = toRenderBox(placeholderRenderer);
97    placeholderBox->style()->setLogicalWidth(Length(contentLogicalWidth() - placeholderBox->borderAndPaddingLogicalWidth(), Fixed));
98    placeholderBox->layoutIfNeeded();
99    placeholderBox->setX(borderLeft() + paddingLeft());
100    placeholderBox->setY(borderTop() + paddingTop());
101    return placeholderRenderer;
102}
103
104}
105