gecko-dev/dom/smil/nsSMILCSSProperty.cpp
Robert O'Callahan 260b32ab87 Bug 946065. Part 3: Move content/smil to dom/smil. r=Ms2ger
--HG--
rename : content/smil/SMILBoolType.cpp => dom/smil/SMILBoolType.cpp
rename : content/smil/SMILBoolType.h => dom/smil/SMILBoolType.h
rename : content/smil/SMILEnumType.cpp => dom/smil/SMILEnumType.cpp
rename : content/smil/SMILEnumType.h => dom/smil/SMILEnumType.h
rename : content/smil/SMILIntegerType.cpp => dom/smil/SMILIntegerType.cpp
rename : content/smil/SMILIntegerType.h => dom/smil/SMILIntegerType.h
rename : content/smil/SMILStringType.cpp => dom/smil/SMILStringType.cpp
rename : content/smil/SMILStringType.h => dom/smil/SMILStringType.h
rename : content/smil/crashtests/483584-1.svg => dom/smil/crashtests/483584-1.svg
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rename : content/smil/crashtests/crashtests.list => dom/smil/crashtests/crashtests.list
rename : content/smil/moz.build => dom/smil/moz.build
rename : content/smil/nsDOMTimeEvent.cpp => dom/smil/nsDOMTimeEvent.cpp
rename : content/smil/nsDOMTimeEvent.h => dom/smil/nsDOMTimeEvent.h
rename : content/smil/nsISMILAttr.h => dom/smil/nsISMILAttr.h
rename : content/smil/nsISMILType.h => dom/smil/nsISMILType.h
rename : content/smil/nsSMILAnimationController.cpp => dom/smil/nsSMILAnimationController.cpp
rename : content/smil/nsSMILAnimationController.h => dom/smil/nsSMILAnimationController.h
rename : content/smil/nsSMILAnimationFunction.cpp => dom/smil/nsSMILAnimationFunction.cpp
rename : content/smil/nsSMILAnimationFunction.h => dom/smil/nsSMILAnimationFunction.h
rename : content/smil/nsSMILCSSProperty.cpp => dom/smil/nsSMILCSSProperty.cpp
rename : content/smil/nsSMILCSSProperty.h => dom/smil/nsSMILCSSProperty.h
rename : content/smil/nsSMILCSSValueType.cpp => dom/smil/nsSMILCSSValueType.cpp
rename : content/smil/nsSMILCSSValueType.h => dom/smil/nsSMILCSSValueType.h
rename : content/smil/nsSMILCompositor.cpp => dom/smil/nsSMILCompositor.cpp
rename : content/smil/nsSMILCompositor.h => dom/smil/nsSMILCompositor.h
rename : content/smil/nsSMILCompositorTable.h => dom/smil/nsSMILCompositorTable.h
rename : content/smil/nsSMILFloatType.cpp => dom/smil/nsSMILFloatType.cpp
rename : content/smil/nsSMILFloatType.h => dom/smil/nsSMILFloatType.h
rename : content/smil/nsSMILInstanceTime.cpp => dom/smil/nsSMILInstanceTime.cpp
rename : content/smil/nsSMILInstanceTime.h => dom/smil/nsSMILInstanceTime.h
rename : content/smil/nsSMILInterval.cpp => dom/smil/nsSMILInterval.cpp
rename : content/smil/nsSMILInterval.h => dom/smil/nsSMILInterval.h
rename : content/smil/nsSMILKeySpline.cpp => dom/smil/nsSMILKeySpline.cpp
rename : content/smil/nsSMILKeySpline.h => dom/smil/nsSMILKeySpline.h
rename : content/smil/nsSMILMappedAttribute.cpp => dom/smil/nsSMILMappedAttribute.cpp
rename : content/smil/nsSMILMappedAttribute.h => dom/smil/nsSMILMappedAttribute.h
rename : content/smil/nsSMILMilestone.h => dom/smil/nsSMILMilestone.h
rename : content/smil/nsSMILNullType.cpp => dom/smil/nsSMILNullType.cpp
rename : content/smil/nsSMILNullType.h => dom/smil/nsSMILNullType.h
rename : content/smil/nsSMILParserUtils.cpp => dom/smil/nsSMILParserUtils.cpp
rename : content/smil/nsSMILParserUtils.h => dom/smil/nsSMILParserUtils.h
rename : content/smil/nsSMILRepeatCount.cpp => dom/smil/nsSMILRepeatCount.cpp
rename : content/smil/nsSMILRepeatCount.h => dom/smil/nsSMILRepeatCount.h
rename : content/smil/nsSMILSetAnimationFunction.cpp => dom/smil/nsSMILSetAnimationFunction.cpp
rename : content/smil/nsSMILSetAnimationFunction.h => dom/smil/nsSMILSetAnimationFunction.h
rename : content/smil/nsSMILTargetIdentifier.h => dom/smil/nsSMILTargetIdentifier.h
rename : content/smil/nsSMILTimeContainer.cpp => dom/smil/nsSMILTimeContainer.cpp
rename : content/smil/nsSMILTimeContainer.h => dom/smil/nsSMILTimeContainer.h
rename : content/smil/nsSMILTimeValue.cpp => dom/smil/nsSMILTimeValue.cpp
rename : content/smil/nsSMILTimeValue.h => dom/smil/nsSMILTimeValue.h
rename : content/smil/nsSMILTimeValueSpec.cpp => dom/smil/nsSMILTimeValueSpec.cpp
rename : content/smil/nsSMILTimeValueSpec.h => dom/smil/nsSMILTimeValueSpec.h
rename : content/smil/nsSMILTimeValueSpecParams.h => dom/smil/nsSMILTimeValueSpecParams.h
rename : content/smil/nsSMILTimedElement.cpp => dom/smil/nsSMILTimedElement.cpp
rename : content/smil/nsSMILTimedElement.h => dom/smil/nsSMILTimedElement.h
rename : content/smil/nsSMILTypes.h => dom/smil/nsSMILTypes.h
rename : content/smil/nsSMILValue.cpp => dom/smil/nsSMILValue.cpp
rename : content/smil/nsSMILValue.h => dom/smil/nsSMILValue.h
rename : content/smil/test/db_smilAnimateMotion.js => dom/smil/test/db_smilAnimateMotion.js
rename : content/smil/test/db_smilCSSFromBy.js => dom/smil/test/db_smilCSSFromBy.js
rename : content/smil/test/db_smilCSSFromTo.js => dom/smil/test/db_smilCSSFromTo.js
rename : content/smil/test/db_smilCSSPaced.js => dom/smil/test/db_smilCSSPaced.js
rename : content/smil/test/db_smilCSSPropertyList.js => dom/smil/test/db_smilCSSPropertyList.js
rename : content/smil/test/db_smilMappedAttrList.js => dom/smil/test/db_smilMappedAttrList.js
rename : content/smil/test/mochitest.ini => dom/smil/test/mochitest.ini
rename : content/smil/test/moz.build => dom/smil/test/moz.build
rename : content/smil/test/smilAnimateMotionValueLists.js => dom/smil/test/smilAnimateMotionValueLists.js
rename : content/smil/test/smilExtDoc_helper.svg => dom/smil/test/smilExtDoc_helper.svg
rename : content/smil/test/smilTestUtils.js => dom/smil/test/smilTestUtils.js
rename : content/smil/test/smilXHR_helper.svg => dom/smil/test/smilXHR_helper.svg
rename : content/smil/test/test_smilAccessKey.xhtml => dom/smil/test/test_smilAccessKey.xhtml
rename : content/smil/test/test_smilAnimateMotion.xhtml => dom/smil/test/test_smilAnimateMotion.xhtml
rename : content/smil/test/test_smilAnimateMotionInvalidValues.xhtml => dom/smil/test/test_smilAnimateMotionInvalidValues.xhtml
rename : content/smil/test/test_smilAnimateMotionOverrideRules.xhtml => dom/smil/test/test_smilAnimateMotionOverrideRules.xhtml
rename : content/smil/test/test_smilBackwardsSeeking.xhtml => dom/smil/test/test_smilBackwardsSeeking.xhtml
rename : content/smil/test/test_smilCSSFontStretchRelative.xhtml => dom/smil/test/test_smilCSSFontStretchRelative.xhtml
rename : content/smil/test/test_smilCSSFromBy.xhtml => dom/smil/test/test_smilCSSFromBy.xhtml
rename : content/smil/test/test_smilCSSFromTo.xhtml => dom/smil/test/test_smilCSSFromTo.xhtml
rename : content/smil/test/test_smilCSSInherit.xhtml => dom/smil/test/test_smilCSSInherit.xhtml
rename : content/smil/test/test_smilCSSInvalidValues.xhtml => dom/smil/test/test_smilCSSInvalidValues.xhtml
rename : content/smil/test/test_smilCSSPaced.xhtml => dom/smil/test/test_smilCSSPaced.xhtml
rename : content/smil/test/test_smilChangeAfterFrozen.xhtml => dom/smil/test/test_smilChangeAfterFrozen.xhtml
rename : content/smil/test/test_smilContainerBinding.xhtml => dom/smil/test/test_smilContainerBinding.xhtml
rename : content/smil/test/test_smilCrossContainer.xhtml => dom/smil/test/test_smilCrossContainer.xhtml
rename : content/smil/test/test_smilDynamicDelayedBeginElement.xhtml => dom/smil/test/test_smilDynamicDelayedBeginElement.xhtml
rename : content/smil/test/test_smilExtDoc.xhtml => dom/smil/test/test_smilExtDoc.xhtml
rename : content/smil/test/test_smilFillMode.xhtml => dom/smil/test/test_smilFillMode.xhtml
rename : content/smil/test/test_smilGetSimpleDuration.xhtml => dom/smil/test/test_smilGetSimpleDuration.xhtml
rename : content/smil/test/test_smilGetStartTime.xhtml => dom/smil/test/test_smilGetStartTime.xhtml
rename : content/smil/test/test_smilHyperlinking.xhtml => dom/smil/test/test_smilHyperlinking.xhtml
rename : content/smil/test/test_smilInvalidValues.html => dom/smil/test/test_smilInvalidValues.html
rename : content/smil/test/test_smilKeySplines.xhtml => dom/smil/test/test_smilKeySplines.xhtml
rename : content/smil/test/test_smilKeyTimes.xhtml => dom/smil/test/test_smilKeyTimes.xhtml
rename : content/smil/test/test_smilKeyTimesPacedMode.xhtml => dom/smil/test/test_smilKeyTimesPacedMode.xhtml
rename : content/smil/test/test_smilMappedAttrFromBy.xhtml => dom/smil/test/test_smilMappedAttrFromBy.xhtml
rename : content/smil/test/test_smilMappedAttrFromTo.xhtml => dom/smil/test/test_smilMappedAttrFromTo.xhtml
rename : content/smil/test/test_smilMappedAttrPaced.xhtml => dom/smil/test/test_smilMappedAttrPaced.xhtml
rename : content/smil/test/test_smilMinTiming.html => dom/smil/test/test_smilMinTiming.html
rename : content/smil/test/test_smilRepeatDuration.html => dom/smil/test/test_smilRepeatDuration.html
rename : content/smil/test/test_smilRepeatTiming.xhtml => dom/smil/test/test_smilRepeatTiming.xhtml
rename : content/smil/test/test_smilReset.xhtml => dom/smil/test/test_smilReset.xhtml
rename : content/smil/test/test_smilRestart.xhtml => dom/smil/test/test_smilRestart.xhtml
rename : content/smil/test/test_smilSetCurrentTime.xhtml => dom/smil/test/test_smilSetCurrentTime.xhtml
rename : content/smil/test/test_smilSync.xhtml => dom/smil/test/test_smilSync.xhtml
rename : content/smil/test/test_smilSyncTransform.xhtml => dom/smil/test/test_smilSyncTransform.xhtml
rename : content/smil/test/test_smilSyncbaseTarget.xhtml => dom/smil/test/test_smilSyncbaseTarget.xhtml
rename : content/smil/test/test_smilTextZoom.xhtml => dom/smil/test/test_smilTextZoom.xhtml
rename : content/smil/test/test_smilTimeEvents.xhtml => dom/smil/test/test_smilTimeEvents.xhtml
rename : content/smil/test/test_smilTiming.xhtml => dom/smil/test/test_smilTiming.xhtml
rename : content/smil/test/test_smilTimingZeroIntervals.xhtml => dom/smil/test/test_smilTimingZeroIntervals.xhtml
rename : content/smil/test/test_smilUpdatedInterval.xhtml => dom/smil/test/test_smilUpdatedInterval.xhtml
rename : content/smil/test/test_smilValues.xhtml => dom/smil/test/test_smilValues.xhtml
rename : content/smil/test/test_smilXHR.xhtml => dom/smil/test/test_smilXHR.xhtml
extra : rebase_source : 4038f574b020b79d3725efd91eeef457d9d6a0b0
2014-01-03 14:49:22 +13:00

274 lines
9.3 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* representation of a SMIL-animatable CSS property on an element */
#include "nsSMILCSSProperty.h"
#include "nsSMILCSSValueType.h"
#include "nsSMILValue.h"
#include "nsComputedDOMStyle.h"
#include "nsCSSProps.h"
#include "nsStyleAnimation.h"
#include "mozilla/dom/Element.h"
#include "nsIDOMElement.h"
#include "nsIDocument.h"
using namespace mozilla::dom;
// Helper function
static bool
GetCSSComputedValue(Element* aElem,
nsCSSProperty aPropID,
nsAString& aResult)
{
NS_ABORT_IF_FALSE(!nsCSSProps::IsShorthand(aPropID),
"Can't look up computed value of shorthand property");
NS_ABORT_IF_FALSE(nsSMILCSSProperty::IsPropertyAnimatable(aPropID),
"Shouldn't get here for non-animatable properties");
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 false;
}
nsIPresShell* shell = doc->GetShell();
if (!shell) {
NS_WARNING("Unable to look up computed style -- no pres shell");
return false;
}
nsRefPtr<nsComputedDOMStyle> computedStyle =
NS_NewComputedDOMStyle(aElem, EmptyString(), shell);
computedStyle->GetPropertyValue(aPropID, aResult);
return true;
}
// Class Methods
nsSMILCSSProperty::nsSMILCSSProperty(nsCSSProperty aPropID,
Element* aElement)
: mPropID(aPropID), mElement(aElement)
{
NS_ABORT_IF_FALSE(IsPropertyAnimatable(mPropID),
"Creating a nsSMILCSSProperty for a property "
"that's not supported for animation");
}
nsSMILValue
nsSMILCSSProperty::GetBaseValue() const
{
// To benefit from Return Value Optimization and avoid copy constructor calls
// due to our use of return-by-value, we must return the exact same object
// from ALL return points. This function must only return THIS variable:
nsSMILValue baseValue;
// SPECIAL CASE: (a) Shorthands
// (b) 'display'
if (nsCSSProps::IsShorthand(mPropID) || mPropID == eCSSProperty_display) {
// We can't look up the base (computed-style) value of shorthand
// properties because they aren't guaranteed to have a consistent computed
// value.
//
// Also, although we can look up the base value of the display property,
// doing so involves clearing and resetting the property which can cause
// frames to be recreated which we'd like to avoid.
//
// In either case, just return a dummy value (initialized with the right
// type, so as not to indicate failure).
nsSMILValue tmpVal(&nsSMILCSSValueType::sSingleton);
baseValue.Swap(tmpVal);
return baseValue;
}
// GENERAL CASE: Non-Shorthands
// (1) Put empty string in override style for property mPropID
// (saving old override style value, so we can set it again when we're done)
nsICSSDeclaration* overrideDecl = mElement->GetSMILOverrideStyle();
nsAutoString cachedOverrideStyleVal;
if (overrideDecl) {
overrideDecl->GetPropertyValue(mPropID, cachedOverrideStyleVal);
// (Don't bother clearing override style if it's already empty)
if (!cachedOverrideStyleVal.IsEmpty()) {
overrideDecl->SetPropertyValue(mPropID, EmptyString());
}
}
// (2) Get Computed Style
nsAutoString computedStyleVal;
bool didGetComputedVal = GetCSSComputedValue(mElement, mPropID,
computedStyleVal);
// (3) Put cached override style back (if it's non-empty)
if (overrideDecl && !cachedOverrideStyleVal.IsEmpty()) {
overrideDecl->SetPropertyValue(mPropID, cachedOverrideStyleVal);
}
// (4) Populate our nsSMILValue from the computed style
if (didGetComputedVal) {
// When we parse animation values we check if they are context-sensitive or
// not so that we don't cache animation values whose meaning may change.
// For base values however this is unnecessary since on each sample the
// compositor will fetch the (computed) base value and compare it against
// the cached (computed) value and detect changes for us.
nsSMILCSSValueType::ValueFromString(mPropID, mElement,
computedStyleVal, baseValue,
nullptr);
}
return baseValue;
}
nsresult
nsSMILCSSProperty::ValueFromString(const nsAString& aStr,
const SVGAnimationElement* aSrcElement,
nsSMILValue& aValue,
bool& aPreventCachingOfSandwich) const
{
NS_ENSURE_TRUE(IsPropertyAnimatable(mPropID), NS_ERROR_FAILURE);
nsSMILCSSValueType::ValueFromString(mPropID, mElement, aStr, aValue,
&aPreventCachingOfSandwich);
if (aValue.IsNull()) {
return NS_ERROR_FAILURE;
}
// XXX Due to bug 536660 (or at least that seems to be the most likely
// culprit), when we have animation setting display:none on a <use> element,
// if we DON'T set the property every sample, chaos ensues.
if (!aPreventCachingOfSandwich && mPropID == eCSSProperty_display) {
aPreventCachingOfSandwich = true;
}
return NS_OK;
}
nsresult
nsSMILCSSProperty::SetAnimValue(const nsSMILValue& aValue)
{
NS_ENSURE_TRUE(IsPropertyAnimatable(mPropID), NS_ERROR_FAILURE);
// Convert nsSMILValue to string
nsAutoString valStr;
if (!nsSMILCSSValueType::ValueToString(aValue, valStr)) {
NS_WARNING("Failed to convert nsSMILValue for CSS property into a string");
return NS_ERROR_FAILURE;
}
// Use string value to style the target element
nsICSSDeclaration* overrideDecl = mElement->GetSMILOverrideStyle();
if (overrideDecl) {
nsAutoString oldValStr;
overrideDecl->GetPropertyValue(mPropID, oldValStr);
if (valStr.Equals(oldValStr)) {
return NS_OK;
}
overrideDecl->SetPropertyValue(mPropID, valStr);
}
return NS_OK;
}
void
nsSMILCSSProperty::ClearAnimValue()
{
// Put empty string in override style for our property
nsICSSDeclaration* overrideDecl = mElement->GetSMILOverrideStyle();
if (overrideDecl) {
overrideDecl->SetPropertyValue(mPropID, EmptyString());
}
}
// Based on http://www.w3.org/TR/SVG/propidx.html
// static
bool
nsSMILCSSProperty::IsPropertyAnimatable(nsCSSProperty aPropID)
{
// NOTE: Right now, Gecko doesn't recognize the following properties from
// the SVG Property Index:
// alignment-baseline
// baseline-shift
// color-profile
// color-rendering
// glyph-orientation-horizontal
// glyph-orientation-vertical
// kerning
// writing-mode
switch (aPropID) {
case eCSSProperty_clip:
case eCSSProperty_clip_rule:
case eCSSProperty_clip_path:
case eCSSProperty_color:
case eCSSProperty_color_interpolation:
case eCSSProperty_color_interpolation_filters:
case eCSSProperty_cursor:
case eCSSProperty_display:
case eCSSProperty_dominant_baseline:
case eCSSProperty_fill:
case eCSSProperty_fill_opacity:
case eCSSProperty_fill_rule:
case eCSSProperty_filter:
case eCSSProperty_flood_color:
case eCSSProperty_flood_opacity:
case eCSSProperty_font:
case eCSSProperty_font_family:
case eCSSProperty_font_size:
case eCSSProperty_font_size_adjust:
case eCSSProperty_font_stretch:
case eCSSProperty_font_style:
case eCSSProperty_font_variant:
case eCSSProperty_font_weight:
case eCSSProperty_height:
case eCSSProperty_image_rendering:
case eCSSProperty_letter_spacing:
case eCSSProperty_lighting_color:
case eCSSProperty_marker:
case eCSSProperty_marker_end:
case eCSSProperty_marker_mid:
case eCSSProperty_marker_start:
case eCSSProperty_mask:
case eCSSProperty_mask_type:
case eCSSProperty_opacity:
case eCSSProperty_overflow:
case eCSSProperty_pointer_events:
case eCSSProperty_shape_rendering:
case eCSSProperty_stop_color:
case eCSSProperty_stop_opacity:
case eCSSProperty_stroke:
case eCSSProperty_stroke_dasharray:
case eCSSProperty_stroke_dashoffset:
case eCSSProperty_stroke_linecap:
case eCSSProperty_stroke_linejoin:
case eCSSProperty_stroke_miterlimit:
case eCSSProperty_stroke_opacity:
case eCSSProperty_stroke_width:
case eCSSProperty_text_anchor:
case eCSSProperty_text_decoration:
case eCSSProperty_text_decoration_line:
case eCSSProperty_text_rendering:
case eCSSProperty_vector_effect:
case eCSSProperty_width:
case eCSSProperty_visibility:
case eCSSProperty_word_spacing:
return true;
// EXPLICITLY NON-ANIMATABLE PROPERTIES:
// (Some of these aren't supported at all in Gecko -- I've commented those
// ones out. If/when we add support for them, uncomment their line here)
// ----------------------------------------------------------------------
// case eCSSProperty_enable_background:
// case eCSSProperty_glyph_orientation_horizontal:
// case eCSSProperty_glyph_orientation_vertical:
// case eCSSProperty_writing_mode:
case eCSSProperty_direction:
case eCSSProperty_unicode_bidi:
return false;
default:
return false;
}
}