libs/hwui/pipeline/skia/FunctorDrawable.h

/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * 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.
 */

#pragma once

#include <SkCanvas.h>
#include <SkDrawable.h>

#include <WebViewFunctorManager.h>
#include <utils/Functor.h>
#include <variant>

namespace android {
namespace uirenderer {

namespace skiapipeline {

/**
 * This drawable wraps a functor enabling it to be recorded into a list
 * of Skia drawing commands.
 */
class FunctorDrawable : public SkDrawable {
public:
    constexpr static const char* const TYPE_NAME = "FunctorDrawable";

    FunctorDrawable(int functor, SkCanvas* canvas)
            : mBounds(canvas->getLocalClipBounds())
            , mWebViewHandle(WebViewFunctorManager::instance().handleFor(functor)) {}

    virtual ~FunctorDrawable() {}

    virtual void syncFunctor(const WebViewSyncData& data) const {
        mWebViewHandle->sync(data);
    }

    virtual void onRemovedFromTree() {
        mWebViewHandle->onRemovedFromTree();
    }

    const char* getTypeName() const override { return TYPE_NAME; }

protected:
    virtual SkRect onGetBounds() override { return mBounds; }

    const SkRect mBounds;
    sp<WebViewFunctor::Handle> mWebViewHandle;
};

}  // namespace skiapipeline
}  // namespace uirenderer
}  // namespace android