Add skia to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 724 insertions, 0 deletions

diff --git a/skia/animator/SkAnimator.cpp b/skia/animator/SkAnimator.cpp
new file mode 100644
index 0000000..19c0214
--- /dev/null
+++ b/skia/animator/SkAnimator.cpp
@@ -0,0 +1,724 @@
+/* libs/graphics/animator/SkAnimator.cpp
+**
+** Copyright 2006, Google Inc.
+**
+** Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#include "SkAnimator.h"
+#include "SkAnimateMaker.h"
+#include "SkCanvas.h"
+#include "SkDisplayApply.h"
+#include "SkDisplayMovie.h"
+#include "SkDisplayTypes.h"
+#include "SkDisplayXMLParser.h"
+#include "SkStream.h"
+#include "SkScript.h"
+#include "SkScript2.h" //   compiled script experiment
+#include "SkSystemEventTypes.h"
+#include "SkTypedArray.h"
+#ifdef ANDROID
+#include "SkDrawExtraPathEffect.h"
+#endif
+#ifdef SK_DEBUG
+#include "SkTime.h"
+#endif
+
+#if defined SK_BUILD_FOR_WIN32 && defined SK_DEBUG
+    #define _static
+    extern const char gMathPrimerText[];
+    extern const char gMathPrimerBinary[];
+#else
+    #define _static static
+#endif
+
+#if !defined SK_BUILD_FOR_BREW || defined SK_DEBUG
+    _static const char gMathPrimerText[] = 
+    "<screenplay>"
+        "<Math id=\"Math\"/>"
+        "<Number id=\"Number\"/>"
+    "</screenplay>";
+#endif
+
+#if defined SK_BUILD_FOR_BREW || defined SK_DEBUG
+    _static const char gMathPrimerBinary[] = 
+    "\x0Ascreenplay\x04Mathbid\x04Math@@";  // !!! now out of date -- does not include Number
+#endif
+
+#if defined SK_BUILD_FOR_BREW
+    #define gMathPrimer gMathPrimerBinary
+#else
+    #define gMathPrimer gMathPrimerText
+#endif
+
+SkAnimator::SkAnimator() : fMaker(NULL) {
+    initialize();
+}
+
+SkAnimator::~SkAnimator() {
+    SkDELETE(fMaker);
+}
+
+void SkAnimator::addExtras(SkExtras* extras) {
+    *fMaker->fExtras.append() = extras;
+}
+
+bool SkAnimator::appendStream(SkStream* stream) {
+    return decodeStream(stream);
+}
+
+bool SkAnimator::decodeMemory(const void* buffer, size_t size)
+{
+    fMaker->fFileName.reset();
+    SkDisplayXMLParser parser(*fMaker);
+    return parser.parse((const char*)buffer, size);
+}
+
+bool SkAnimator::decodeStream(SkStream* stream)
+{
+    SkDisplayXMLParser parser(*fMaker);
+    bool result = parser.parse(*stream);
+    fMaker->setErrorString();
+    return result;
+}
+
+bool SkAnimator::decodeDOM(const SkDOM& dom, const SkDOMNode* node)
+{
+    fMaker->fFileName.reset();
+    SkDisplayXMLParser parser(*fMaker);
+    return parser.parse(dom, node);
+}
+
+bool SkAnimator::decodeURI(const char uri[]) {
+//  SkDebugf("animator decode %s\n", uri);
+
+//    SkStream* stream = SkStream::GetURIStream(fMaker->fPrefix.c_str(), uri);
+    SkStream* stream = new SkFILEStream(uri);
+
+    SkAutoTDelete<SkStream> autoDel(stream);
+    setURIBase(uri);
+    return decodeStream(stream);
+}
+
+bool SkAnimator::doCharEvent(SkUnichar code) {
+    if (code == 0)
+        return false;
+    struct SkEventState state;
+    state.fCode = code;
+    fMaker->fEnableTime = fMaker->getAppTime();
+    bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyChar, &state);
+    fMaker->notifyInval();
+    return result;
+}
+
+bool SkAnimator::doClickEvent(int clickState, SkScalar x, SkScalar y) {
+    SkASSERT(clickState >= 0 && clickState <= 2);
+    struct SkEventState state;
+    state.fX = x;
+    state.fY = y;
+    fMaker->fEnableTime = fMaker->getAppTime();
+    bool result = fMaker->fEvents.doEvent(*fMaker, 
+        clickState == 0 ? SkDisplayEvent::kMouseDown : 
+        clickState == 1 ? SkDisplayEvent::kMouseDrag : 
+        SkDisplayEvent::kMouseUp, &state);
+    fMaker->notifyInval();
+    return result;
+}
+
+bool SkAnimator::doKeyEvent(SkKey code) {
+    if (code == 0)
+        return false;
+    struct SkEventState state;
+    state.fCode = code;
+    fMaker->fEnableTime = fMaker->getAppTime();
+    bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyPress, &state);
+    fMaker->notifyInval();
+    return result;
+}
+
+bool SkAnimator::doKeyUpEvent(SkKey code) {
+    if (code == 0)
+        return false;
+    struct SkEventState state;
+    state.fCode = code;
+    fMaker->fEnableTime = fMaker->getAppTime();
+    bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kKeyPressUp, &state);
+    fMaker->notifyInval();
+    return result;
+}
+
+bool SkAnimator::doUserEvent(const SkEvent& evt) {
+    fMaker->fEnableTime = fMaker->getAppTime();
+    return onEvent(evt);
+}
+
+SkAnimator::DifferenceType SkAnimator::draw(SkCanvas* canvas, SkPaint* paint, SkMSec time) {
+    if (paint == NULL)
+        return draw(canvas, time);
+    fMaker->fScreenplay.time = time;
+    fMaker->fCanvas = canvas;
+    fMaker->fPaint = paint;
+    fMaker->fDisplayList.fHasUnion = false;
+    int result = fMaker->fDisplayList.draw(*fMaker, time);
+    if (result)
+        result += fMaker->fDisplayList.fHasUnion;
+    return (DifferenceType) result;
+}
+
+SkAnimator::DifferenceType SkAnimator::draw(SkCanvas* canvas, SkMSec time) {
+    SkPaint paint;
+    return draw(canvas, &paint, time);
+}
+    
+#ifdef SK_DEBUG
+void SkAnimator::eventDone(const SkEvent& ) {
+}
+#endif
+
+bool SkAnimator::findClickEvent(SkScalar x, SkScalar y) {
+    struct SkEventState state;
+    state.fDisable = true;
+    state.fX = x;
+    state.fY = y;
+    fMaker->fEnableTime = fMaker->getAppTime();
+    bool result = fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kMouseDown, &state);
+    fMaker->notifyInval();
+    return result;
+}
+
+const SkAnimator* SkAnimator::getAnimator(const SkDisplayable* displayable) const {
+    if (displayable->getType() != SkType_Movie)
+        return NULL;
+    const SkDisplayMovie* movie = (const SkDisplayMovie*) displayable;
+    return movie->getAnimator();
+}
+
+const SkDisplayable* SkAnimator::getElement(const char* id) {
+    SkDisplayable* element;
+    if (fMaker->find(id, &element) == false)
+        return NULL;
+    return (const SkDisplayable*) element;
+}
+
+SkElementType SkAnimator::getElementType(const SkDisplayable* ae) {
+    SkDisplayable* element = (SkDisplayable*) ae;
+    const SkMemberInfo* info = SkDisplayType::GetMembers(fMaker, element->getType(), NULL);
+    return (SkElementType) SkDisplayType::Find(fMaker, info);
+}
+
+SkElementType SkAnimator::getElementType(const char* id) {
+    const SkDisplayable* element = getElement(id);
+    return getElementType(element);
+}
+
+const SkMemberInfo* SkAnimator::getField(const SkDisplayable* ae, const char* field) {
+    SkDisplayable* element = (SkDisplayable*) ae;
+    const SkMemberInfo* info = element->getMember(field);
+    return (const SkMemberInfo*) info;
+}
+
+const SkMemberInfo* SkAnimator::getField(const char* elementID, const char* field) {
+    const SkDisplayable* element = getElement(elementID);
+    return getField(element, field);
+}
+
+SkFieldType SkAnimator::getFieldType(const SkMemberInfo* ai) {
+    const SkMemberInfo* info = (const SkMemberInfo*) ai;
+    return (SkFieldType) info->getType();
+}
+
+SkFieldType SkAnimator::getFieldType(const char* id, const char* fieldID) {
+    const SkMemberInfo* field = getField(id, fieldID);
+    return getFieldType(field);
+}
+
+ static bool getArrayCommon(const SkDisplayable* ae, const SkMemberInfo* ai,
+     int index, SkOperand* operand, SkDisplayTypes type) {
+    const SkDisplayable* element = (const SkDisplayable*) ae;
+    const SkMemberInfo* info = (const SkMemberInfo*) ai;
+    SkASSERT(info->fType == SkType_Array);
+    return info->getArrayValue(element, index, operand);
+}
+
+int32_t SkAnimator::getArrayInt(const SkDisplayable* ae, 
+        const SkMemberInfo* ai, int index) {
+    SkOperand operand;
+    bool result = getArrayCommon(ae, ai, index, &operand, SkType_Int);
+    return result ? operand.fS32 : SK_NaN32;
+}
+
+int32_t SkAnimator::getArrayInt(const char* id, const char* fieldID, int index) {
+    const SkDisplayable* element = getElement(id);
+    if (element == NULL)
+        return SK_NaN32;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return SK_NaN32;
+    return getArrayInt(element, field, index);
+}
+
+SkScalar SkAnimator::getArrayScalar(const SkDisplayable* ae, 
+        const SkMemberInfo* ai, int index) {
+    SkOperand operand;
+    bool result = getArrayCommon(ae, ai, index, &operand, SkType_Float);
+    return result ? operand.fScalar : SK_ScalarNaN;
+}
+
+SkScalar SkAnimator::getArrayScalar(const char* id, const char* fieldID, int index) {
+    const SkDisplayable* element = getElement(id);
+    if (element == NULL)
+        return SK_ScalarNaN;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return SK_ScalarNaN;
+    return getArrayScalar(element, field, index);
+}
+
+const char* SkAnimator::getArrayString(const SkDisplayable* ae, 
+        const SkMemberInfo* ai, int index) {
+    SkOperand operand;
+    bool result = getArrayCommon(ae, ai, index, &operand, SkType_String);
+    return result ? operand.fString->c_str() : NULL;
+}
+
+const char* SkAnimator::getArrayString(const char* id, const char* fieldID, int index) {
+    const SkDisplayable* element = getElement(id);
+    if (element == NULL)
+        return NULL;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return NULL;
+    return getArrayString(element, field, index);
+}
+
+SkMSec SkAnimator::getInterval() {
+    return fMaker->fMinimumInterval == (SkMSec) -1 ? 0 : fMaker->fMinimumInterval;
+}
+
+void SkAnimator::getInvalBounds(SkRect* inval) {
+    if (fMaker->fDisplayList.fHasUnion) {
+        inval->fLeft = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fLeft);
+        inval->fTop = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fTop);
+        inval->fRight = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fRight);
+        inval->fBottom = SkIntToScalar(fMaker->fDisplayList.fInvalBounds.fBottom);
+    } else {
+        inval->fLeft = inval->fTop = -SK_ScalarMax;
+        inval->fRight = inval->fBottom = SK_ScalarMax;
+    }
+}
+
+const SkXMLParserError* SkAnimator::getParserError() {
+    return &fMaker->fError;
+}
+
+const char* SkAnimator::getParserErrorString() {
+    if (fMaker->fErrorString.size() == 0 && fMaker->fError.hasError())
+        fMaker->setErrorString();
+    return fMaker->fErrorString.c_str();
+}
+
+int32_t SkAnimator::getInt(const SkDisplayable* element, const SkMemberInfo* info) {
+    if (info->fType != SkType_MemberProperty) {
+        SkOperand operand;
+        if (info->getType() == SkType_Int) {
+            info->getValue(element, &operand, 1);
+            return operand.fS32;
+        }
+        return SK_NaN32;
+    }
+    SkScriptValue scriptValue;
+    bool success = element->getProperty(info->propertyIndex(), &scriptValue);
+    if (success && scriptValue.fType == SkType_Int)
+        return scriptValue.fOperand.fS32;
+    return SK_NaN32;
+}
+
+int32_t SkAnimator::getInt(const char* id, const char* fieldID) {
+    const SkDisplayable* element = getElement(id);
+    if (element == NULL)
+        return SK_NaN32;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return SK_NaN32;
+    return getInt(element, field);
+}
+
+SkScalar SkAnimator::getScalar(const SkDisplayable* element, const SkMemberInfo* info) {
+    if (info->fType != SkType_MemberProperty) {
+        SkOperand operand;
+        if (info->getType() == SkType_Float) {
+            info->getValue(element, &operand, 1);
+            return operand.fScalar;
+        }
+        return SK_ScalarNaN;
+    }
+    SkScriptValue scriptValue;
+    bool success = element->getProperty(info->propertyIndex(), &scriptValue);
+    if (success && scriptValue.fType == SkType_Float)
+        return scriptValue.fOperand.fScalar;
+    return SK_ScalarNaN;
+}
+
+SkScalar SkAnimator::getScalar(const char* id, const char* fieldID) {
+    const SkDisplayable* element = getElement(id);
+    if (element == NULL)
+        return SK_ScalarNaN;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return SK_ScalarNaN;
+    return getScalar(element, field);
+}
+
+const char* SkAnimator::getString(const SkDisplayable* ae, 
+        const SkMemberInfo* ai) {
+    const SkDisplayable* element = (const SkDisplayable*) ae;
+    const SkMemberInfo* info = (const SkMemberInfo*) ai;
+    SkString* temp;
+    info->getString(element, &temp);
+    return temp->c_str();
+}
+
+const char* SkAnimator::getString(const char* id, const char* fieldID) {
+    const SkDisplayable* element = getElement(id);
+    if (element == NULL)
+        return NULL;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return NULL;
+    return getString(element, field);
+}
+
+const char* SkAnimator::getURIBase() {
+    return fMaker->fPrefix.c_str();
+}
+
+void SkAnimator::initialize() {
+    SkDELETE(fMaker);
+    fMaker = SkNEW_ARGS(SkAnimateMaker, (this, NULL, NULL));
+    decodeMemory(gMathPrimer, sizeof(gMathPrimer)-1);
+#ifdef ANDROID
+    InitializeSkExtraPathEffects(this);
+#endif
+}
+
+
+#ifdef SK_DEBUG
+bool SkAnimator::isTrackingEvents() {
+    return false;
+}
+#endif
+
+bool SkAnimator::onEvent(const SkEvent& evt) {
+#ifdef SK_DEBUG
+    SkAnimator* root = fMaker->getRoot();
+    if (root == NULL)
+        root = this;
+    if (root->isTrackingEvents())
+        root->eventDone(evt);
+#endif
+    if (evt.isType(SK_EventType_OnEnd)) {
+        SkEventState eventState;
+        bool success = evt.findPtr("anim", (void**) &eventState.fDisplayable);
+        SkASSERT(success);
+        success = evt.findS32("time", (int32_t*) &fMaker->fEnableTime);
+        SkASSERT(success);
+        fMaker->fAdjustedStart = fMaker->getAppTime() - fMaker->fEnableTime;
+        fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kOnEnd, &eventState);
+        fMaker->fAdjustedStart = 0;
+        goto inval;
+    }
+    if (evt.isType(SK_EventType_Delay)) {
+        fMaker->doDelayedEvent();
+        goto inval;
+    }
+    {
+        const char* id = evt.findString("id");
+        if (id == NULL)
+            return false;
+        SkDisplayable** firstMovie = fMaker->fMovies.begin();
+        SkDisplayable** endMovie = fMaker->fMovies.end();
+        for (SkDisplayable** ptr = firstMovie; ptr < endMovie; ptr++) {
+            SkDisplayMovie* movie = (SkDisplayMovie*) *ptr;
+            movie->doEvent(evt);
+        }
+        {
+            SkDisplayable* event;
+            if (fMaker->find(id, &event) == false)
+                return false;
+    #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
+            SkString debugOut;
+            SkMSec realTime = fMaker->getAppTime();
+            debugOut.appendS32(realTime - fMaker->fDebugTimeBase);
+            debugOut.append(" onEvent id=");
+            debugOut.append(id);
+    #endif
+            SkMSec time = evt.getFast32();
+            if (time != 0) {
+                SkMSec app  = fMaker->getAppTime();
+                fMaker->setEnableTime(app, time);
+    #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
+                debugOut.append(" time=");
+                debugOut.appendS32(time - fMaker->fDebugTimeBase);
+                debugOut.append(" adjust=");
+                debugOut.appendS32(fMaker->fAdjustedStart);
+    #endif
+            }
+    #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
+            SkDebugf("%s\n", debugOut.c_str());
+    #endif
+            SkASSERT(event->isEvent());
+            SkDisplayEvent* displayEvent = (SkDisplayEvent*) event;
+            displayEvent->populateInput(*fMaker, evt);
+            displayEvent->enableEvent(*fMaker);
+        }
+    }
+inval:
+    fMaker->notifyInval();
+    return true;
+}
+
+void SkAnimator::onEventPost(SkEvent* evt, SkEventSinkID sinkID)
+{
+#ifdef SK_DEBUG
+    SkAnimator* root = fMaker->getRoot();
+    if (root) {
+        root->onEventPost(evt, sinkID);
+        return;
+    }
+#else
+    SkASSERT(sinkID == this->getSinkID() || this->getHostEventSinkID() == sinkID);
+#endif
+    SkEvent::Post(evt, sinkID);
+}
+
+void SkAnimator::onEventPostTime(SkEvent* evt, SkEventSinkID sinkID, SkMSec time)
+{
+#ifdef SK_DEBUG
+    SkAnimator* root = fMaker->getRoot();
+    if (root) {
+        root->onEventPostTime(evt, sinkID, time);
+        return;
+    }
+#else
+    SkASSERT(sinkID == this->getSinkID() || this->getHostEventSinkID() == sinkID);
+#endif
+    SkEvent::PostTime(evt, sinkID, time);
+}
+
+void SkAnimator::reset() {
+    fMaker->fDisplayList.reset();
+}
+
+SkEventSinkID SkAnimator::getHostEventSinkID() const {
+    return fMaker->fHostEventSinkID; 
+}
+
+void SkAnimator::setHostEventSinkID(SkEventSinkID target) {
+    fMaker->fHostEventSinkID = target; 
+}
+
+void SkAnimator::onSetHostHandler(Handler ) {
+}
+
+void SkAnimator::setJavaOwner(Handler ) {
+}
+
+bool SkAnimator::setArrayString(const char* id, const char* fieldID, const char** array, int num)
+{
+    SkTypedArray tArray(SkType_String);
+    tArray.setCount(num);
+    for (int i = 0; i < num; i++) {
+        SkOperand op;
+        op.fString = new SkString(array[i]);
+        tArray[i] = op;
+    }
+    return setArray(id, fieldID, tArray);
+}
+bool SkAnimator::setArrayInt(const char* id, const char* fieldID, const int* array, int num)
+{
+    SkTypedArray tArray(SkType_Int);
+    tArray.setCount(num);
+    for (int i = 0; i < num; i++) {
+        SkOperand op;   
+        op.fS32 = array[i];
+        tArray[i] = op;
+    }
+    return setArray(id, fieldID, tArray);
+}
+
+bool SkAnimator::setArray(SkDisplayable* element, const SkMemberInfo* info, SkTypedArray array) {
+    if (info->fType != SkType_Array)
+        return false;   //the field is not an array
+    //i think we can handle the case where the displayable itself is an array differently from the
+    //case where it has an array - for one thing, if it is an array, i think we can change its type
+    //if it's not, we cannot
+    SkDisplayTypes type = element->getType();
+    if (type == SkType_Array) {
+        SkDisplayArray* dispArray = (SkDisplayArray*) element;
+        dispArray->values = array;  
+        return true;
+    }
+    else
+        return false;   //currently i don't care about this case
+}
+
+bool SkAnimator::setArray(const char* id, const char* fieldID, SkTypedArray array) {
+    SkDisplayable* element = (SkDisplayable*) getElement(id);
+    //should I go ahead and change all 'NULL's to 'NULL'?
+    if (element == NULL)
+        return false;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return false;
+    return setArray(element, field, array);
+}
+
+bool SkAnimator::setInt(SkDisplayable* element, const SkMemberInfo* info, int32_t s32) {
+    if (info->fType != SkType_MemberProperty) {
+        SkOperand operand;
+        operand.fS32 = s32;
+        SkASSERT(info->getType() == SkType_Int);
+        info->setValue(element, &operand, 1);
+    } else {
+        SkScriptValue scriptValue;
+        scriptValue.fType = SkType_Int;
+        scriptValue.fOperand.fS32 = s32;
+        element->setProperty(info->propertyIndex(), scriptValue);
+    }
+    return true;
+}
+
+bool SkAnimator::setInt(const char* id, const char* fieldID, int32_t s32) {
+    SkDisplayable* element = (SkDisplayable*) getElement(id);
+    if (element == NULL)
+        return false;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return false;
+    return setInt(element, field, s32);
+}
+
+bool SkAnimator::setScalar(SkDisplayable* element, const SkMemberInfo* info, SkScalar scalar) {
+    if (info->fType != SkType_MemberProperty) {
+        SkOperand operand;
+        operand.fScalar = scalar;
+        SkASSERT(info->getType() == SkType_Float);
+        info->setValue(element, &operand, 1);
+    } else {
+        SkScriptValue scriptValue;
+        scriptValue.fType = SkType_Float;
+        scriptValue.fOperand.fScalar = scalar;
+        element->setProperty(info->propertyIndex(), scriptValue);
+    }
+    return true;
+}
+
+bool SkAnimator::setScalar(const char* id, const char* fieldID, SkScalar scalar) {
+    SkDisplayable* element = (SkDisplayable*) getElement(id);
+    if (element == NULL)
+        return false;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return false;
+    return setScalar(element, field, scalar);
+}
+
+bool SkAnimator::setString(SkDisplayable* element, 
+        const SkMemberInfo* info, const char* str) {
+    // !!! until this is fixed, can't call script with global references from here 
+    info->setValue(*fMaker, NULL, 0, info->fCount, element, info->getType(), str, strlen(str));
+    return true;
+}
+
+bool SkAnimator::setString(const char* id, const char* fieldID, const char* str) {
+    SkDisplayable* element = (SkDisplayable*) getElement(id);
+    if (element == NULL)
+        return false;
+    const SkMemberInfo* field = getField(element, fieldID);
+    if (field == NULL)
+        return false;
+    return setString(element, field, str);
+}
+
+void SkAnimator::setTimeline(const Timeline& timeline) {
+    fMaker->fTimeline = &timeline;
+}
+
+void SkAnimator::setURIBase(const char* uri) {
+    if (uri)
+    {
+        const char* tail = strrchr(uri, '/');
+        if (tail) {
+            SkString prefix(uri, tail - uri + 1);
+            if (uri[0] != '.' /*SkStream::IsAbsoluteURI(uri)*/)
+                fMaker->fPrefix.reset();
+            fMaker->fPrefix.append(prefix);
+            fMaker->fFileName.set(tail + 1);
+        } else
+            fMaker->fFileName.set(uri);
+    }
+}
+
+#ifdef SK_DEBUG
+bool SkAnimator::NoLeaks() {
+#ifdef SK_BUILD_FOR_MAC
+    if (SkDisplayable::fAllocations.count() == 0)
+        return true;
+//  return SkDisplayable::fAllocationCount == 0;
+    SkDebugf("!!! leaked %d displayables:\n", SkDisplayable::fAllocations.count());
+    for (SkDisplayable** leak = SkDisplayable::fAllocations.begin(); leak < SkDisplayable::fAllocations.end(); leak++)
+        SkDebugf("%08x %s\n", *leak, (*leak)->id);
+#endif
+    return false;
+}
+#endif
+
+#ifdef SK_SUPPORT_UNITTEST
+#include "SkAnimatorScript.h"
+#include "SkBase64.h"
+#include "SkParse.h"
+#include "SkMemberInfo.h"
+
+#define unittestline(type)  { #type , type::UnitTest }
+#endif
+
+
+void SkAnimator::Init(bool runUnitTests) {
+#ifdef SK_SUPPORT_UNITTEST
+    if (runUnitTests == false)
+        return;
+    static const struct {
+        const char* fTypeName;
+        void (*fUnitTest)( );
+    } gUnitTests[] = {
+        unittestline(SkBase64),
+        unittestline(SkDisplayType),
+        unittestline(SkParse),
+        unittestline(SkScriptEngine),
+//      unittestline(SkScriptEngine2),  // compiled script experiment
+        unittestline(SkAnimatorScript)
+    };
+    for (int i = 0; i < (int)SK_ARRAY_COUNT(gUnitTests); i++)
+    {
+        SkDebugf("SkAnimator: Running UnitTest for %s\n", gUnitTests[i].fTypeName);
+        gUnitTests[i].fUnitTest();
+        SkDebugf("SkAnimator: End UnitTest for %s\n", gUnitTests[i].fTypeName);
+    }
+#endif
+}
+
+void SkAnimator::Term() {
+}
+
+
+