/
WebpAnimatedDrawableDecoder.kt
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/
WebpAnimatedDrawableDecoder.kt
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/*
* Copyright (C) 2022 panpf <panpfpanpf@outlook.com>
*
* 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.
*/
package com.github.panpf.sketch.decode
import android.os.Build
import androidx.annotation.RequiresApi
import com.github.panpf.sketch.ComponentRegistry
import com.github.panpf.sketch.Sketch
import com.github.panpf.sketch.datasource.AssetDataSource
import com.github.panpf.sketch.datasource.BasedFileDataSource
import com.github.panpf.sketch.datasource.ByteArrayDataSource
import com.github.panpf.sketch.datasource.ContentDataSource
import com.github.panpf.sketch.datasource.DataSource
import com.github.panpf.sketch.datasource.ResourceDataSource
import com.github.panpf.sketch.decode.internal.ImageFormat
import com.github.panpf.sketch.decode.internal.isAnimatedWebP
import com.github.panpf.sketch.fetch.FetchResult
import com.github.panpf.sketch.request.internal.RequestContext
/**
* Adds animation webp support by AnimatedImageDrawable
*/
@RequiresApi(Build.VERSION_CODES.P)
fun ComponentRegistry.Builder.supportAnimatedWebp(): ComponentRegistry.Builder = apply {
addDrawableDecoder(WebpAnimatedDrawableDecoder.Factory())
}
/**
* Only the following attributes are supported:
*
* * resize.size
* * resize.precision: It is always LESS_PIXELS or SMALLER_SIZE
* * colorSpace
* * repeatCount
* * animatedTransformation
* * onAnimationStart
* * onAnimationEnd
*/
@RequiresApi(Build.VERSION_CODES.P)
class WebpAnimatedDrawableDecoder(
requestContext: RequestContext,
dataSource: DataSource,
) : com.github.panpf.sketch.decode.internal.BaseAnimatedImageDrawableDecoder(
requestContext,
dataSource
) {
class Factory : DrawableDecoder.Factory {
override fun create(
sketch: Sketch,
requestContext: RequestContext,
fetchResult: FetchResult
): WebpAnimatedDrawableDecoder? {
val dataSource = fetchResult.dataSource
if (
Build.VERSION.SDK_INT >= Build.VERSION_CODES.P
&& !requestContext.request.disallowAnimatedImage
&& (dataSource is AssetDataSource
|| dataSource is ResourceDataSource
|| dataSource is ContentDataSource
|| dataSource is ByteArrayDataSource
|| dataSource is BasedFileDataSource)
) {
val imageFormat = ImageFormat.parseMimeType(fetchResult.mimeType)
if ((imageFormat == null || imageFormat == ImageFormat.WEBP) && fetchResult.headerBytes.isAnimatedWebP()) {
return WebpAnimatedDrawableDecoder(requestContext, dataSource)
}
}
return null
}
override fun toString(): String = "WebpAnimatedDrawableDecoder"
override fun equals(other: Any?): Boolean {
if (this === other) return true
if (javaClass != other?.javaClass) return false
return true
}
override fun hashCode(): Int {
return javaClass.hashCode()
}
}
}