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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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