зеркало из https://github.com/mozilla/pjs.git
232 строки
7.1 KiB
C++
232 строки
7.1 KiB
C++
|
/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
|
||
|
/* ***** 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 AnimationCommon, common animation code for transitions
|
||
|
* and animations.
|
||
|
*
|
||
|
* The Initial Developer of the Original Code is the Mozilla Foundation.
|
||
|
* Portions created by the Initial Developer are Copyright (C) 2011
|
||
|
* the Initial Developer. All Rights Reserved.
|
||
|
*
|
||
|
* Contributor(s):
|
||
|
* L. David Baron <dbaron@dbaron.org>, Mozilla Corporation (original author)
|
||
|
*
|
||
|
* Alternatively, the contents of this file may be used under the terms of
|
||
|
* either 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 ***** */
|
||
|
|
||
|
#include "AnimationCommon.h"
|
||
|
#include "nsRuleData.h"
|
||
|
#include "nsCSSValue.h"
|
||
|
#include "nsStyleContext.h"
|
||
|
|
||
|
namespace mozilla {
|
||
|
namespace css {
|
||
|
|
||
|
CommonAnimationManager::CommonAnimationManager(nsPresContext *aPresContext)
|
||
|
: mPresContext(aPresContext)
|
||
|
{
|
||
|
PR_INIT_CLIST(&mElementData);
|
||
|
}
|
||
|
|
||
|
CommonAnimationManager::~CommonAnimationManager()
|
||
|
{
|
||
|
NS_ABORT_IF_FALSE(!mPresContext, "Disconnect should have been called");
|
||
|
}
|
||
|
|
||
|
void
|
||
|
CommonAnimationManager::Disconnect()
|
||
|
{
|
||
|
// Content nodes might outlive the transition or animation manager.
|
||
|
RemoveAllElementData();
|
||
|
|
||
|
mPresContext = nsnull;
|
||
|
}
|
||
|
|
||
|
void
|
||
|
CommonAnimationManager::AddElementData(CommonElementAnimationData* aData)
|
||
|
{
|
||
|
if (PR_CLIST_IS_EMPTY(&mElementData)) {
|
||
|
// We need to observe the refresh driver.
|
||
|
nsRefreshDriver *rd = mPresContext->RefreshDriver();
|
||
|
rd->AddRefreshObserver(this, Flush_Style);
|
||
|
}
|
||
|
|
||
|
PR_INSERT_BEFORE(aData, &mElementData);
|
||
|
}
|
||
|
|
||
|
void
|
||
|
CommonAnimationManager::ElementDataRemoved()
|
||
|
{
|
||
|
// If we have no transitions or animations left, remove ourselves from
|
||
|
// the refresh driver.
|
||
|
if (PR_CLIST_IS_EMPTY(&mElementData)) {
|
||
|
mPresContext->RefreshDriver()->RemoveRefreshObserver(this, Flush_Style);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void
|
||
|
CommonAnimationManager::RemoveAllElementData()
|
||
|
{
|
||
|
while (!PR_CLIST_IS_EMPTY(&mElementData)) {
|
||
|
CommonElementAnimationData *head =
|
||
|
static_cast<CommonElementAnimationData*>(PR_LIST_HEAD(&mElementData));
|
||
|
head->Destroy();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* nsISupports implementation
|
||
|
*/
|
||
|
|
||
|
NS_IMPL_ISUPPORTS1(CommonAnimationManager, nsIStyleRuleProcessor)
|
||
|
|
||
|
nsRestyleHint
|
||
|
CommonAnimationManager::HasStateDependentStyle(StateRuleProcessorData* aData)
|
||
|
{
|
||
|
return nsRestyleHint(0);
|
||
|
}
|
||
|
|
||
|
PRBool
|
||
|
CommonAnimationManager::HasDocumentStateDependentStyle(StateRuleProcessorData* aData)
|
||
|
{
|
||
|
return PR_FALSE;
|
||
|
}
|
||
|
|
||
|
nsRestyleHint
|
||
|
CommonAnimationManager::HasAttributeDependentStyle(AttributeRuleProcessorData* aData)
|
||
|
{
|
||
|
return nsRestyleHint(0);
|
||
|
}
|
||
|
|
||
|
/* virtual */ PRBool
|
||
|
CommonAnimationManager::MediumFeaturesChanged(nsPresContext* aPresContext)
|
||
|
{
|
||
|
return PR_FALSE;
|
||
|
}
|
||
|
|
||
|
/* static */ PRBool
|
||
|
CommonAnimationManager::ExtractComputedValueForTransition(
|
||
|
nsCSSProperty aProperty,
|
||
|
nsStyleContext* aStyleContext,
|
||
|
nsStyleAnimation::Value& aComputedValue)
|
||
|
{
|
||
|
PRBool result =
|
||
|
nsStyleAnimation::ExtractComputedValue(aProperty, aStyleContext,
|
||
|
aComputedValue);
|
||
|
if (aProperty == eCSSProperty_visibility) {
|
||
|
NS_ABORT_IF_FALSE(aComputedValue.GetUnit() ==
|
||
|
nsStyleAnimation::eUnit_Enumerated,
|
||
|
"unexpected unit");
|
||
|
aComputedValue.SetIntValue(aComputedValue.GetIntValue(),
|
||
|
nsStyleAnimation::eUnit_Visibility);
|
||
|
}
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
NS_IMPL_ISUPPORTS1(AnimValuesStyleRule, nsIStyleRule)
|
||
|
|
||
|
/* virtual */ void
|
||
|
AnimValuesStyleRule::MapRuleInfoInto(nsRuleData* aRuleData)
|
||
|
{
|
||
|
nsStyleContext *contextParent = aRuleData->mStyleContext->GetParent();
|
||
|
if (contextParent && contextParent->HasPseudoElementData()) {
|
||
|
// Don't apply transitions or animations to things inside of
|
||
|
// pseudo-elements.
|
||
|
// FIXME (Bug 522599): Add tests for this.
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
for (PRUint32 i = 0, i_end = mPropertyValuePairs.Length(); i < i_end; ++i) {
|
||
|
PropertyValuePair &cv = mPropertyValuePairs[i];
|
||
|
if (aRuleData->mSIDs & nsCachedStyleData::GetBitForSID(
|
||
|
nsCSSProps::kSIDTable[cv.mProperty]))
|
||
|
{
|
||
|
nsCSSValue *prop = aRuleData->ValueFor(cv.mProperty);
|
||
|
if (prop->GetUnit() == eCSSUnit_Null) {
|
||
|
#ifdef DEBUG
|
||
|
PRBool ok =
|
||
|
#endif
|
||
|
nsStyleAnimation::UncomputeValue(cv.mProperty,
|
||
|
aRuleData->mPresContext,
|
||
|
cv.mValue, *prop);
|
||
|
NS_ABORT_IF_FALSE(ok, "could not store computed value");
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#ifdef DEBUG
|
||
|
/* virtual */ void
|
||
|
AnimValuesStyleRule::List(FILE* out, PRInt32 aIndent) const
|
||
|
{
|
||
|
// WRITE ME?
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
void
|
||
|
ComputedTimingFunction::Init(const nsTimingFunction &aFunction)
|
||
|
{
|
||
|
mType = aFunction.mType;
|
||
|
if (mType == nsTimingFunction::Function) {
|
||
|
mTimingFunction.Init(aFunction.mFunc.mX1, aFunction.mFunc.mY1,
|
||
|
aFunction.mFunc.mX2, aFunction.mFunc.mY2);
|
||
|
} else {
|
||
|
mSteps = aFunction.mSteps;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static inline double
|
||
|
StepEnd(PRUint32 aSteps, double aPortion)
|
||
|
{
|
||
|
NS_ABORT_IF_FALSE(0.0 <= aPortion && aPortion <= 1.0, "out of range");
|
||
|
PRUint32 step = PRUint32(aPortion * aSteps); // floor
|
||
|
return double(step) / double(aSteps);
|
||
|
}
|
||
|
|
||
|
double
|
||
|
ComputedTimingFunction::GetValue(double aPortion) const
|
||
|
{
|
||
|
switch (mType) {
|
||
|
case nsTimingFunction::Function:
|
||
|
return mTimingFunction.GetSplineValue(aPortion);
|
||
|
case nsTimingFunction::StepStart:
|
||
|
// There are diagrams in the spec that seem to suggest this check
|
||
|
// and the bounds point should not be symmetric with StepEnd, but
|
||
|
// should actually step up at rather than immediately after the
|
||
|
// fraction points. However, we rely on rounding negative values
|
||
|
// up to zero, so we can't do that. And it's not clear the spec
|
||
|
// really meant it.
|
||
|
return 1.0 - StepEnd(mSteps, 1.0 - aPortion);
|
||
|
default:
|
||
|
NS_ABORT_IF_FALSE(PR_FALSE, "bad type");
|
||
|
// fall through
|
||
|
case nsTimingFunction::StepEnd:
|
||
|
return StepEnd(mSteps, aPortion);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
}
|
||
|
}
|