mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
aeccfd6caa
--HG-- rename : layout/reftests/svg/smil/style/anim-css-strokewidth-1-by-px-px.svg => layout/reftests/svg/smil/style/anim-css-strokewidth-1-by-no-no.svg rename : layout/reftests/svg/smil/style/anim-css-strokewidth-1-from-by-px-px.svg => layout/reftests/svg/smil/style/anim-css-strokewidth-1-from-by-no-no.svg rename : layout/reftests/svg/smil/style/anim-css-strokewidth-1-from-to-px-px.svg => layout/reftests/svg/smil/style/anim-css-strokewidth-1-from-to-no-no.svg rename : layout/reftests/svg/smil/style/anim-css-strokewidth-1-to-px-px.svg => layout/reftests/svg/smil/style/anim-css-strokewidth-1-to-no-no.svg rename : layout/reftests/svg/smil/style/anim-css-strokewidth-4-from-by-px-px.svg => layout/reftests/svg/smil/style/anim-css-strokewidth-4-from-by-no-no.svg
440 lines
16 KiB
C++
440 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is the Mozilla SMIL module.
|
|
*
|
|
* The Initial Developer of the Original Code is the Mozilla Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2009
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Daniel Holbert <dholbert@mozilla.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
/* representation of a value for a SMIL-animated CSS property */
|
|
|
|
#include "nsSMILCSSValueType.h"
|
|
#include "nsString.h"
|
|
#include "nsStyleAnimation.h"
|
|
#include "nsSMILParserUtils.h"
|
|
#include "nsSMILValue.h"
|
|
#include "nsCSSValue.h"
|
|
#include "nsColor.h"
|
|
#include "nsPresContext.h"
|
|
#include "nsIContent.h"
|
|
#include "nsDebug.h"
|
|
|
|
/*static*/ nsSMILCSSValueType nsSMILCSSValueType::sSingleton;
|
|
|
|
struct ValueWrapper {
|
|
ValueWrapper(nsCSSProperty aPropID, const nsStyleAnimation::Value& aValue,
|
|
nsPresContext* aPresContext) :
|
|
mPropID(aPropID), mCSSValue(aValue), mPresContext(aPresContext) {}
|
|
|
|
nsCSSProperty mPropID;
|
|
nsStyleAnimation::Value mCSSValue;
|
|
nsPresContext* mPresContext;
|
|
};
|
|
|
|
// Helper "zero" values of various types
|
|
// -------------------------------------
|
|
static const nsStyleAnimation::Value
|
|
sZeroCoord(0, nsStyleAnimation::Value::CoordConstructor);
|
|
static const nsStyleAnimation::Value
|
|
sZeroPercent(0.0f, nsStyleAnimation::Value::PercentConstructor);
|
|
static const nsStyleAnimation::Value
|
|
sZeroFloat(0.0f, nsStyleAnimation::Value::FloatConstructor);
|
|
static const nsStyleAnimation::Value
|
|
sZeroColor(NS_RGB(0,0,0), nsStyleAnimation::Value::ColorConstructor);
|
|
|
|
// Helper Methods
|
|
// --------------
|
|
static const nsStyleAnimation::Value*
|
|
GetZeroValueForUnit(nsStyleAnimation::Unit aUnit)
|
|
{
|
|
NS_ABORT_IF_FALSE(aUnit != nsStyleAnimation::eUnit_Null,
|
|
"Need non-null unit for a zero value");
|
|
switch (aUnit) {
|
|
case nsStyleAnimation::eUnit_Coord:
|
|
return &sZeroCoord;
|
|
case nsStyleAnimation::eUnit_Percent:
|
|
return &sZeroPercent;
|
|
case nsStyleAnimation::eUnit_Float:
|
|
return &sZeroFloat;
|
|
case nsStyleAnimation::eUnit_Color:
|
|
return &sZeroColor;
|
|
default:
|
|
return nsnull;
|
|
}
|
|
}
|
|
|
|
// This method requires at least one of its arguments to be non-null.
|
|
//
|
|
// If one argument is null, this method updates it to point to "zero"
|
|
// for the other argument's Unit (if applicable; otherwise, we return PR_FALSE).
|
|
//
|
|
// If neither argument is null, this method generally does nothing, though it
|
|
// may apply a workaround for the special case where a 0 length-value is mixed
|
|
// with a eUnit_Float value. (See comment below.)
|
|
//
|
|
// Returns PR_TRUE on success, or PR_FALSE.
|
|
static const PRBool
|
|
FinalizeStyleAnimationValues(const nsStyleAnimation::Value*& aValue1,
|
|
const nsStyleAnimation::Value*& aValue2)
|
|
{
|
|
NS_ABORT_IF_FALSE(aValue1 || aValue2,
|
|
"expecting at least one non-null value");
|
|
|
|
// Are we missing either val? (If so, it's an implied 0 in other val's units)
|
|
if (!aValue1) {
|
|
aValue1 = GetZeroValueForUnit(aValue2->GetUnit());
|
|
return !!aValue1; // Fail if we have no zero value for this unit.
|
|
}
|
|
if (!aValue2) {
|
|
aValue2 = GetZeroValueForUnit(aValue1->GetUnit());
|
|
return !!aValue2; // Fail if we have no zero value for this unit.
|
|
}
|
|
|
|
// Ok, both values were specified.
|
|
// Need to handle a special-case, though: unitless nonzero length (parsed as
|
|
// eUnit_Float) mixed with unitless 0 length (parsed as eUnit_Coord). These
|
|
// won't interoperate in nsStyleAnimation, since their Units don't match.
|
|
// In this case, we replace the eUnit_Coord 0 value with eUnit_Float 0 value.
|
|
if (*aValue1 == sZeroCoord &&
|
|
aValue2->GetUnit() == nsStyleAnimation::eUnit_Float) {
|
|
aValue1 = &sZeroFloat;
|
|
} else if (*aValue2 == sZeroCoord &&
|
|
aValue1->GetUnit() == nsStyleAnimation::eUnit_Float) {
|
|
aValue2 = &sZeroFloat;
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
static void
|
|
InvertSign(nsStyleAnimation::Value& aValue)
|
|
{
|
|
switch (aValue.GetUnit()) {
|
|
case nsStyleAnimation::eUnit_Coord:
|
|
aValue.SetCoordValue(-aValue.GetCoordValue());
|
|
break;
|
|
case nsStyleAnimation::eUnit_Percent:
|
|
aValue.SetPercentValue(-aValue.GetPercentValue());
|
|
break;
|
|
case nsStyleAnimation::eUnit_Float:
|
|
aValue.SetFloatValue(-aValue.GetFloatValue());
|
|
break;
|
|
default:
|
|
NS_NOTREACHED("Calling InvertSign with an unsupported unit");
|
|
break;
|
|
}
|
|
}
|
|
|
|
static ValueWrapper*
|
|
ExtractValueWrapper(nsSMILValue& aValue)
|
|
{
|
|
return static_cast<ValueWrapper*>(aValue.mU.mPtr);
|
|
}
|
|
|
|
static const ValueWrapper*
|
|
ExtractValueWrapper(const nsSMILValue& aValue)
|
|
{
|
|
return static_cast<const ValueWrapper*>(aValue.mU.mPtr);
|
|
}
|
|
|
|
// Class methods
|
|
// -------------
|
|
void
|
|
nsSMILCSSValueType::Init(nsSMILValue& aValue) const
|
|
{
|
|
NS_ABORT_IF_FALSE(aValue.IsNull(), "Unexpected SMIL value type");
|
|
|
|
aValue.mU.mPtr = nsnull;
|
|
aValue.mType = this;
|
|
}
|
|
|
|
void
|
|
nsSMILCSSValueType::Destroy(nsSMILValue& aValue) const
|
|
{
|
|
NS_ABORT_IF_FALSE(aValue.mType == this, "Unexpected SMIL value type");
|
|
delete static_cast<ValueWrapper*>(aValue.mU.mPtr);
|
|
aValue.mType = &nsSMILNullType::sSingleton;
|
|
}
|
|
|
|
nsresult
|
|
nsSMILCSSValueType::Assign(nsSMILValue& aDest, const nsSMILValue& aSrc) const
|
|
{
|
|
NS_ABORT_IF_FALSE(aDest.mType == aSrc.mType, "Incompatible SMIL types");
|
|
NS_ABORT_IF_FALSE(aDest.mType == this, "Unexpected SMIL value type");
|
|
const ValueWrapper* srcWrapper = ExtractValueWrapper(aSrc);
|
|
ValueWrapper* destWrapper = ExtractValueWrapper(aDest);
|
|
|
|
if (srcWrapper) {
|
|
if (!destWrapper) {
|
|
// barely-initialized dest -- need to alloc & copy
|
|
aDest.mU.mPtr = new ValueWrapper(*srcWrapper);
|
|
} else {
|
|
// both already fully-initialized -- just copy straight across
|
|
*destWrapper = *srcWrapper;
|
|
}
|
|
} else if (destWrapper) {
|
|
// fully-initialized dest, barely-initialized src -- clear dest
|
|
delete destWrapper;
|
|
aDest.mU.mPtr = destWrapper = nsnull;
|
|
} // else, both are barely-initialized -- nothing to do.
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
PRBool
|
|
nsSMILCSSValueType::IsEqual(const nsSMILValue& aLeft,
|
|
const nsSMILValue& aRight) const
|
|
{
|
|
NS_ABORT_IF_FALSE(aLeft.mType == aRight.mType, "Incompatible SMIL types");
|
|
NS_ABORT_IF_FALSE(aLeft.mType == this, "Unexpected SMIL value");
|
|
const ValueWrapper* leftWrapper = ExtractValueWrapper(aLeft);
|
|
const ValueWrapper* rightWrapper = ExtractValueWrapper(aRight);
|
|
|
|
if (leftWrapper) {
|
|
if (rightWrapper) {
|
|
// Both non-null
|
|
NS_WARN_IF_FALSE(leftWrapper != rightWrapper,
|
|
"Two nsSMILValues with matching ValueWrapper ptr");
|
|
// mPresContext doesn't really matter for equality comparison
|
|
return (leftWrapper->mPropID == rightWrapper->mPropID &&
|
|
leftWrapper->mCSSValue == rightWrapper->mCSSValue);
|
|
}
|
|
// Left non-null, right null
|
|
return PR_FALSE;
|
|
}
|
|
if (rightWrapper) {
|
|
// Left null, right non-null
|
|
return PR_FALSE;
|
|
}
|
|
// Both null
|
|
return PR_TRUE;
|
|
}
|
|
|
|
nsresult
|
|
nsSMILCSSValueType::Add(nsSMILValue& aDest, const nsSMILValue& aValueToAdd,
|
|
PRUint32 aCount) const
|
|
{
|
|
NS_ABORT_IF_FALSE(aValueToAdd.mType == aDest.mType,
|
|
"Trying to add invalid types");
|
|
NS_ABORT_IF_FALSE(aValueToAdd.mType == this, "Unexpected source type");
|
|
|
|
ValueWrapper* destWrapper = ExtractValueWrapper(aDest);
|
|
const ValueWrapper* valueToAddWrapper = ExtractValueWrapper(aValueToAdd);
|
|
NS_ABORT_IF_FALSE(destWrapper || valueToAddWrapper,
|
|
"need at least one fully-initialized value");
|
|
|
|
nsCSSProperty property = (valueToAddWrapper ? valueToAddWrapper->mPropID :
|
|
destWrapper->mPropID);
|
|
// Special case: font-size-adjust and stroke-dasharray are explicitly
|
|
// non-additive (even though nsStyleAnimation *could* support adding them)
|
|
if (property == eCSSProperty_font_size_adjust ||
|
|
property == eCSSProperty_stroke_dasharray) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
const nsStyleAnimation::Value* valueToAdd = valueToAddWrapper ?
|
|
&valueToAddWrapper->mCSSValue : nsnull;
|
|
const nsStyleAnimation::Value* destValue = destWrapper ?
|
|
&destWrapper->mCSSValue : nsnull;
|
|
if (!FinalizeStyleAnimationValues(valueToAdd, destValue)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Did FinalizeStyleAnimationValues change destValue?
|
|
// If so, update outparam to use the new value.
|
|
if (destWrapper && &destWrapper->mCSSValue != destValue) {
|
|
destWrapper->mCSSValue = *destValue;
|
|
}
|
|
|
|
// Handle barely-initialized "zero" destination.
|
|
if (!destWrapper) {
|
|
aDest.mU.mPtr = destWrapper =
|
|
new ValueWrapper(property, *destValue, valueToAddWrapper->mPresContext);
|
|
}
|
|
|
|
return nsStyleAnimation::Add(property,
|
|
destWrapper->mCSSValue, *valueToAdd, aCount) ?
|
|
NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult
|
|
nsSMILCSSValueType::ComputeDistance(const nsSMILValue& aFrom,
|
|
const nsSMILValue& aTo,
|
|
double& aDistance) const
|
|
{
|
|
NS_ABORT_IF_FALSE(aFrom.mType == aTo.mType,
|
|
"Trying to compare different types");
|
|
NS_ABORT_IF_FALSE(aFrom.mType == this, "Unexpected source type");
|
|
|
|
const ValueWrapper* fromWrapper = ExtractValueWrapper(aFrom);
|
|
const ValueWrapper* toWrapper = ExtractValueWrapper(aTo);
|
|
NS_ABORT_IF_FALSE(toWrapper, "expecting non-null endpoint");
|
|
|
|
const nsStyleAnimation::Value* fromCSSValue = fromWrapper ?
|
|
&fromWrapper->mCSSValue : nsnull;
|
|
const nsStyleAnimation::Value* toCSSValue = &toWrapper->mCSSValue;
|
|
if (!FinalizeStyleAnimationValues(fromCSSValue, toCSSValue)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return nsStyleAnimation::ComputeDistance(toWrapper->mPropID,
|
|
*fromCSSValue, *toCSSValue,
|
|
aDistance) ?
|
|
NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult
|
|
nsSMILCSSValueType::Interpolate(const nsSMILValue& aStartVal,
|
|
const nsSMILValue& aEndVal,
|
|
double aUnitDistance,
|
|
nsSMILValue& aResult) const
|
|
{
|
|
NS_ABORT_IF_FALSE(aStartVal.mType == aEndVal.mType,
|
|
"Trying to interpolate different types");
|
|
NS_ABORT_IF_FALSE(aStartVal.mType == this,
|
|
"Unexpected types for interpolation");
|
|
NS_ABORT_IF_FALSE(aResult.mType == this, "Unexpected result type");
|
|
NS_ABORT_IF_FALSE(aUnitDistance >= 0.0 && aUnitDistance <= 1.0,
|
|
"unit distance value out of bounds");
|
|
NS_ABORT_IF_FALSE(!aResult.mU.mPtr, "expecting barely-initialized outparam");
|
|
|
|
const ValueWrapper* startWrapper = ExtractValueWrapper(aStartVal);
|
|
const ValueWrapper* endWrapper = ExtractValueWrapper(aEndVal);
|
|
NS_ABORT_IF_FALSE(endWrapper, "expecting non-null endpoint");
|
|
|
|
const nsStyleAnimation::Value* startCSSValue = startWrapper ?
|
|
&startWrapper->mCSSValue : nsnull;
|
|
const nsStyleAnimation::Value* endCSSValue = &endWrapper->mCSSValue;
|
|
if (!FinalizeStyleAnimationValues(startCSSValue, endCSSValue)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsStyleAnimation::Value resultValue;
|
|
if (nsStyleAnimation::Interpolate(endWrapper->mPropID,
|
|
*startCSSValue, *endCSSValue,
|
|
aUnitDistance, resultValue)) {
|
|
aResult.mU.mPtr = new ValueWrapper(endWrapper->mPropID, resultValue,
|
|
endWrapper->mPresContext);
|
|
return NS_OK;
|
|
}
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Helper function to extract presContext
|
|
static nsPresContext*
|
|
GetPresContextForElement(nsIContent* aElem)
|
|
{
|
|
nsIDocument* doc = aElem->GetCurrentDoc();
|
|
if (!doc) {
|
|
// This can happen if we process certain types of restyles mid-sample
|
|
// and remove anonymous animated content from the document as a result.
|
|
// See bug 534975.
|
|
return nsnull;
|
|
}
|
|
nsIPresShell* shell = doc->GetShell();
|
|
return shell ? shell->GetPresContext() : nsnull;
|
|
}
|
|
|
|
// Helper function to parse a string into a nsStyleAnimation::Value
|
|
static PRBool
|
|
ValueFromStringHelper(nsCSSProperty aPropID,
|
|
nsIContent* aTargetElement,
|
|
nsPresContext* aPresContext,
|
|
const nsAString& aString,
|
|
nsStyleAnimation::Value& aStyleAnimValue)
|
|
{
|
|
// If value is negative, we'll strip off the "-" so the CSS parser won't
|
|
// barf, and then manually make the parsed value negative.
|
|
// (This is a partial solution to let us accept some otherwise out-of-bounds
|
|
// CSS values. Bug 501188 will provide a more complete fix.)
|
|
PRBool isNegative = PR_FALSE;
|
|
PRUint32 subStringBegin = 0;
|
|
PRInt32 absValuePos = nsSMILParserUtils::CheckForNegativeNumber(aString);
|
|
if (absValuePos > 0) {
|
|
isNegative = PR_TRUE;
|
|
subStringBegin = (PRUint32)absValuePos; // Start parsing after '-' sign
|
|
}
|
|
nsDependentSubstring subString(aString, subStringBegin);
|
|
if (!nsStyleAnimation::ComputeValue(aPropID, aTargetElement, subString,
|
|
PR_TRUE, aStyleAnimValue)) {
|
|
return PR_FALSE;
|
|
}
|
|
if (isNegative) {
|
|
InvertSign(aStyleAnimValue);
|
|
}
|
|
|
|
if (aPropID == eCSSProperty_font_size) {
|
|
// Divide out text-zoom, since SVG is supposed to ignore it
|
|
NS_ABORT_IF_FALSE(aStyleAnimValue.GetUnit() ==
|
|
nsStyleAnimation::eUnit_Coord,
|
|
"'font-size' value with unexpected style unit");
|
|
aStyleAnimValue.SetCoordValue(aStyleAnimValue.GetCoordValue() /
|
|
aPresContext->TextZoom());
|
|
}
|
|
return PR_TRUE;
|
|
}
|
|
|
|
// static
|
|
void
|
|
nsSMILCSSValueType::ValueFromString(nsCSSProperty aPropID,
|
|
nsIContent* aTargetElement,
|
|
const nsAString& aString,
|
|
nsSMILValue& aValue)
|
|
{
|
|
// XXXbz aTargetElement should be an Element
|
|
NS_ABORT_IF_FALSE(aValue.IsNull(), "Outparam should be null-typed");
|
|
nsPresContext* presContext = GetPresContextForElement(aTargetElement);
|
|
if (!presContext) {
|
|
NS_WARNING("Not parsing animation value; unable to get PresContext");
|
|
return;
|
|
}
|
|
|
|
nsStyleAnimation::Value parsedValue;
|
|
if (ValueFromStringHelper(aPropID, aTargetElement, presContext,
|
|
aString, parsedValue)) {
|
|
sSingleton.Init(aValue);
|
|
aValue.mU.mPtr = new ValueWrapper(aPropID, parsedValue, presContext);
|
|
}
|
|
}
|
|
|
|
// static
|
|
PRBool
|
|
nsSMILCSSValueType::ValueToString(const nsSMILValue& aValue,
|
|
nsAString& aString)
|
|
{
|
|
NS_ABORT_IF_FALSE(aValue.mType == &nsSMILCSSValueType::sSingleton,
|
|
"Unexpected SMIL value type");
|
|
const ValueWrapper* wrapper = ExtractValueWrapper(aValue);
|
|
return !wrapper ||
|
|
nsStyleAnimation::UncomputeValue(wrapper->mPropID, wrapper->mPresContext,
|
|
wrapper->mCSSValue, aString);
|
|
}
|