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1 /** | |
2 * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. | |
3 * (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmo
bile.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/layout/HitTestResult.h" | |
27 | |
28 namespace blink { | |
29 | |
30 RenderTextControlMultiLine::RenderTextControlMultiLine(HTMLTextAreaElement* elem
ent) | |
31 : RenderTextControl(element) | |
32 { | |
33 ASSERT(element); | |
34 } | |
35 | |
36 RenderTextControlMultiLine::~RenderTextControlMultiLine() | |
37 { | |
38 } | |
39 | |
40 bool RenderTextControlMultiLine::nodeAtPoint(const HitTestRequest& request, HitT
estResult& result, const HitTestLocation& locationInContainer, const LayoutPoint
& accumulatedOffset, HitTestAction hitTestAction) | |
41 { | |
42 if (!RenderTextControl::nodeAtPoint(request, result, locationInContainer, ac
cumulatedOffset, hitTestAction)) | |
43 return false; | |
44 | |
45 if (result.innerNode() == node() || result.innerNode() == innerEditorElement
()) | |
46 hitInnerEditorElement(result, locationInContainer.point(), accumulatedOf
fset); | |
47 | |
48 return true; | |
49 } | |
50 | |
51 float 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 | |
62 LayoutUnit RenderTextControlMultiLine::preferredContentLogicalWidth(float charWi
dth) const | |
63 { | |
64 int factor = toHTMLTextAreaElement(node())->cols(); | |
65 return static_cast<LayoutUnit>(ceilf(charWidth * factor)) + scrollbarThickne
ss(); | |
66 } | |
67 | |
68 LayoutUnit RenderTextControlMultiLine::computeControlLogicalHeight(LayoutUnit li
neHeight, LayoutUnit nonContentHeight) const | |
69 { | |
70 return lineHeight * toHTMLTextAreaElement(node())->rows() + nonContentHeight
; | |
71 } | |
72 | |
73 int RenderTextControlMultiLine::baselinePosition(FontBaseline baselineType, bool
firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) cons
t | |
74 { | |
75 return RenderBox::baselinePosition(baselineType, firstLine, direction, lineP
ositionMode); | |
76 } | |
77 | |
78 PassRefPtr<LayoutStyle> RenderTextControlMultiLine::createInnerEditorStyle(const
LayoutStyle& startStyle) const | |
79 { | |
80 RefPtr<LayoutStyle> textBlockStyle = LayoutStyle::create(); | |
81 textBlockStyle->inheritFrom(startStyle); | |
82 adjustInnerEditorStyle(*textBlockStyle); | |
83 textBlockStyle->setDisplay(BLOCK); | |
84 textBlockStyle->setUnique(); | |
85 | |
86 return textBlockStyle.release(); | |
87 } | |
88 | |
89 LayoutObject* RenderTextControlMultiLine::layoutSpecialExcludedChild(bool relayo
utChildren, SubtreeLayoutScope& layoutScope) | |
90 { | |
91 LayoutObject* placeholderRenderer = RenderTextControl::layoutSpecialExcluded
Child(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() - plac
eholderBox->borderAndPaddingLogicalWidth(), Fixed)); | |
98 placeholderBox->layoutIfNeeded(); | |
99 placeholderBox->setX(borderLeft() + paddingLeft()); | |
100 placeholderBox->setY(borderTop() + paddingTop()); | |
101 return placeholderRenderer; | |
102 } | |
103 | |
104 } | |
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