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2010-03-19 Joseph Pecoraro <joepeck@webkit.org>
Reviewed by David Kilzer.
<input type=range> does not validate correctly without a renderer and the tests are incorrect
https://bugs.webkit.org/show_bug.cgi?id=36259
Part 1 of 2: Refactoring the SliderRange struct out of RenderSlider
into a more appropriate place. Changed the named to StepRange. Changed
from a struct to a class.
Added new files to the build.
* GNUmakefile.am:
* WebCore.gypi:
* WebCore.pro:
* WebCore.vcproj/WebCore.vcproj:
* WebCore.xcodeproj/project.pbxproj:
Renamed and moved class SliderRange to StepRange.
* html/StepRange.cpp: Added.
(WebCore::StepRange::StepRange):
(WebCore::StepRange::clampValue):
(WebCore::StepRange::valueFromElement):
(WebCore::sliderPosition):
* html/StepRange.h: Added.
(WebCore::StepRange::proportionFromValue):
(WebCore::StepRange::valueFromProportion):
* rendering/RenderSlider.cpp:
(WebCore::RenderSlider::updateFromElement): updated to use StepRange
(WebCore::RenderSlider::setValueForPosition): updated to use StepRange
Canonical link: https://commits.webkit.org/47535@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@56241 268f45cc-cd09-0410-ab3c-d52691b4dbfc- Loading branch information
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| @@ -0,0 +1,74 @@ | ||
| /* | ||
| * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Library General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Library General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Library General Public License | ||
| * along with this library; see the file COPYING.LIB. If not, write to | ||
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | ||
| * Boston, MA 02110-1301, USA. | ||
| * | ||
| */ | ||
|
|
||
| #include "config.h" | ||
| #include "StepRange.h" | ||
|
|
||
| #include "HTMLInputElement.h" | ||
| #include "HTMLNames.h" | ||
| #include <wtf/MathExtras.h> | ||
|
|
||
| using namespace std; | ||
|
|
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| namespace WebCore { | ||
|
|
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| using namespace HTMLNames; | ||
|
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| StepRange::StepRange(HTMLInputElement* element) | ||
| { | ||
| if (element->hasAttribute(precisionAttr)) { | ||
| step = 1.0; | ||
| hasStep = !equalIgnoringCase(element->getAttribute(precisionAttr), "float"); | ||
| } else | ||
| hasStep = element->getAllowedValueStep(&step); | ||
|
|
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| maximum = element->maximum(); | ||
| minimum = element->minimum(); | ||
| } | ||
|
|
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| double StepRange::clampValue(double value) | ||
| { | ||
| double clampedValue = max(minimum, min(value, maximum)); | ||
| if (!hasStep) | ||
| return clampedValue; | ||
| // Rounds clampedValue to minimum + N * step. | ||
| clampedValue = minimum + round((clampedValue - minimum) / step) * step; | ||
| if (clampedValue > maximum) | ||
| clampedValue -= step; | ||
| ASSERT(clampedValue >= minimum); | ||
| ASSERT(clampedValue <= maximum); | ||
| return clampedValue; | ||
| } | ||
|
|
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| double StepRange::valueFromElement(HTMLInputElement* element, bool* wasClamped) | ||
| { | ||
| double oldValue; | ||
| bool parseSuccess = HTMLInputElement::parseToDoubleForNumberType(element->value(), &oldValue); | ||
| if (!parseSuccess) | ||
| oldValue = (minimum + maximum) / 2; | ||
| double newValue = clampValue(oldValue); | ||
|
|
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| if (wasClamped) | ||
| *wasClamped = !parseSuccess || newValue != oldValue; | ||
|
|
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| return newValue; | ||
| } | ||
|
|
||
| } |
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| @@ -0,0 +1,60 @@ | ||
| /* | ||
| * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Library General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Library General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Library General Public License | ||
| * along with this library; see the file COPYING.LIB. If not, write to | ||
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | ||
| * Boston, MA 02110-1301, USA. | ||
| * | ||
| */ | ||
|
|
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| #ifndef StepRange_h | ||
| #define StepRange_h | ||
|
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| #include <wtf/Noncopyable.h> | ||
|
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| namespace WebCore { | ||
|
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| class HTMLInputElement; | ||
|
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| class StepRange : public Noncopyable { | ||
| public: | ||
| bool hasStep; | ||
| double step; | ||
| double minimum; | ||
| double maximum; // maximum must be >= minimum. | ||
|
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| explicit StepRange(HTMLInputElement*); | ||
| double clampValue(double value); | ||
|
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| // Map value into 0-1 range | ||
| double proportionFromValue(double value) | ||
| { | ||
| if (minimum == maximum) | ||
| return 0; | ||
|
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| return (value - minimum) / (maximum - minimum); | ||
| } | ||
|
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| // Map from 0-1 range to value | ||
| double valueFromProportion(double proportion) | ||
| { | ||
| return minimum + proportion * (maximum - minimum); | ||
| } | ||
|
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| double valueFromElement(HTMLInputElement*, bool* wasClamped = 0); | ||
| }; | ||
|
|
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| } | ||
|
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| #endif // StepRange_h |
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