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/*
* Copyright (C) 2023 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.
*/
package com.android.launcher3.responsive
import android.content.res.TypedArray
import android.util.Log
import com.android.launcher3.R
import com.android.launcher3.responsive.ResponsiveSpec.Companion.ResponsiveSpecType
import com.android.launcher3.responsive.ResponsiveSpec.DimensionType
import com.android.launcher3.util.ResourceHelper
class HotseatSpecsProvider(groupOfSpecs: List<ResponsiveSpecGroup<HotseatSpec>>) {
private val groupOfSpecs: List<ResponsiveSpecGroup<HotseatSpec>>
init {
this.groupOfSpecs = groupOfSpecs.sortedBy { it.aspectRatio }
}
fun getSpecsByAspectRatio(aspectRatio: Float): ResponsiveSpecGroup<HotseatSpec> {
check(aspectRatio > 0f) { "Invalid aspect ratio! The value should be bigger than 0." }
val specsGroup = groupOfSpecs.firstOrNull { aspectRatio <= it.aspectRatio }
check(specsGroup != null) { "No available spec with aspectRatio within $aspectRatio." }
return specsGroup
}
private fun getSpecIgnoringDimensionType(
availableSize: Int,
specsGroup: ResponsiveSpecGroup<HotseatSpec>
): HotseatSpec? {
val specWidth = specsGroup.widthSpecs.firstOrNull { availableSize <= it.maxAvailableSize }
val specHeight = specsGroup.heightSpecs.firstOrNull { availableSize <= it.maxAvailableSize }
return specWidth ?: specHeight
}
fun getCalculatedSpec(
aspectRatio: Float,
dimensionType: DimensionType,
availableSpace: Int,
): CalculatedHotseatSpec {
val specsGroup = getSpecsByAspectRatio(aspectRatio)
// TODO(b/315548992): Ignore the dimension type to prevent crash before launcher
// data migration is finished. The restore process allows the initialization of
// an invalid or disabled grid until the data is restored and migrated.
val spec = getSpecIgnoringDimensionType(availableSpace, specsGroup)
check(spec != null) { "No available spec found within $availableSpace. $specsGroup" }
// val spec = specsGroup.getSpec(dimensionType, availableSpace)
return CalculatedHotseatSpec(availableSpace, spec)
}
companion object {
@JvmStatic
fun create(resourceHelper: ResourceHelper): HotseatSpecsProvider {
val parser = ResponsiveSpecsParser(resourceHelper)
val specs = parser.parseXML(ResponsiveSpecType.Hotseat, ::HotseatSpec)
return HotseatSpecsProvider(specs)
}
}
}
data class HotseatSpec(
override val maxAvailableSize: Int,
override val dimensionType: DimensionType,
override val specType: ResponsiveSpecType,
val hotseatQsbSpace: SizeSpec,
val edgePadding: SizeSpec
) : IResponsiveSpec {
init {
check(isValid()) { "Invalid HotseatSpec found." }
}
constructor(
responsiveSpecType: ResponsiveSpecType,
attrs: TypedArray,
specs: Map<String, SizeSpec>
) : this(
maxAvailableSize =
attrs.getDimensionPixelSize(R.styleable.ResponsiveSpec_maxAvailableSize, 0),
dimensionType =
DimensionType.entries[
attrs.getInt(
R.styleable.ResponsiveSpec_dimensionType,
DimensionType.HEIGHT.ordinal
)],
specType = responsiveSpecType,
hotseatQsbSpace = specs.getOrError(SizeSpec.XmlTags.HOTSEAT_QSB_SPACE),
edgePadding = specs.getOrError(SizeSpec.XmlTags.EDGE_PADDING)
)
fun isValid(): Boolean {
if (maxAvailableSize <= 0) {
logError("The property maxAvailableSize must be higher than 0.")
return false
}
// All specs need to be individually valid
if (!allSpecsAreValid()) {
logError("One or more specs are invalid!")
return false
}
if (!isValidFixedSize()) {
logError("The total Fixed Size used must be lower or equal to $maxAvailableSize.")
return false
}
return true
}
private fun allSpecsAreValid(): Boolean {
return hotseatQsbSpace.isValid() &&
hotseatQsbSpace.onlyFixedSize() &&
edgePadding.isValid() &&
edgePadding.onlyFixedSize()
}
private fun isValidFixedSize() =
hotseatQsbSpace.fixedSize + edgePadding.fixedSize <= maxAvailableSize
private fun logError(message: String) {
Log.e(LOG_TAG, "${this::class.simpleName}#isValid - $message - $this")
}
companion object {
private const val LOG_TAG = "HotseatSpec"
}
}
class CalculatedHotseatSpec(val availableSpace: Int, val spec: HotseatSpec) {
var hotseatQsbSpace: Int = 0
private set
var edgePadding: Int = 0
private set
init {
hotseatQsbSpace = spec.hotseatQsbSpace.getCalculatedValue(availableSpace)
edgePadding = spec.edgePadding.getCalculatedValue(availableSpace)
}
override fun hashCode(): Int {
var result = availableSpace.hashCode()
result = 31 * result + hotseatQsbSpace.hashCode()
result = 31 * result + edgePadding.hashCode()
result = 31 * result + spec.hashCode()
return result
}
override fun equals(other: Any?): Boolean {
return other is CalculatedHotseatSpec &&
availableSpace == other.availableSpace &&
hotseatQsbSpace == other.hotseatQsbSpace &&
edgePadding == other.edgePadding &&
spec == other.spec
}
override fun toString(): String {
return "${this::class.simpleName}(" +
"availableSpace=$availableSpace, hotseatQsbSpace=$hotseatQsbSpace, " +
"edgePadding=$edgePadding, " +
"${spec::class.simpleName}.maxAvailableSize=${spec.maxAvailableSize}" +
")"
}
}
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