88 lines
3.3 KiB
Kotlin
88 lines
3.3 KiB
Kotlin
package sushi.hardcore.droidfs.explorers
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import sushi.hardcore.droidfs.collation.getCollationKeyForFileName
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import sushi.hardcore.droidfs.filesystems.Stat
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import sushi.hardcore.droidfs.util.PathUtils
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import java.text.Collator
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class ExplorerElement(val name: String, val stat: Stat, val parentPath: String) {
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val fullPath: String = PathUtils.pathJoin(parentPath.ifEmpty { "/" }, name)
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val collationKey = Collator.getInstance().getCollationKeyForFileName(fullPath)
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val isDirectory: Boolean
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get() = stat.type == Stat.S_IFDIR
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val isRegularFile: Boolean
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get() = stat.type == Stat.S_IFREG
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val isSymlink: Boolean
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get() = stat.type == Stat.S_IFLNK
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val isParentFolder: Boolean
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get() = stat.type == Stat.PARENT_FOLDER_TYPE
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companion object {
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@JvmStatic
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//this function is needed because I had some problems calling the constructor from JNI, probably due to arguments with default values
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fun new(name: String, elementType: Int, size: Long, mTime: Long, parentPath: String): ExplorerElement {
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return ExplorerElement(name, Stat(elementType, size, mTime*1000), parentPath)
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}
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private fun foldersFirst(a: ExplorerElement, b: ExplorerElement, default: () -> Int): Int {
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return if (a.isDirectory && b.isRegularFile) {
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-1
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} else if (b.isDirectory && a.isRegularFile) {
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1
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} else {
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default()
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}
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}
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private fun doSort(a: ExplorerElement, b: ExplorerElement, foldersFirst: Boolean, sorter: () -> Int): Int {
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return if (b.isParentFolder) {
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1
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} else if (a.isParentFolder) {
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-1
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} else {
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if (foldersFirst) {
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foldersFirst(a, b, sorter)
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} else {
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sorter()
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}
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}
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}
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fun sortBy(sortOrder: String, foldersFirst: Boolean, explorerElements: MutableList<ExplorerElement>) {
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when (sortOrder) {
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"name" -> {
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explorerElements.sortWith { a, b ->
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doSort(a, b, foldersFirst) { a.collationKey.compareTo(b.collationKey) }
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}
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}
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"size" -> {
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explorerElements.sortWith { a, b ->
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doSort(a, b, foldersFirst) { (a.stat.size - b.stat.size).toInt() }
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}
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}
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"date" -> {
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explorerElements.sortWith { a, b ->
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doSort(a, b, foldersFirst) { a.stat.mTime.compareTo(b.stat.mTime) }
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}
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}
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"name_desc" -> {
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explorerElements.sortWith { a, b ->
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doSort(a, b, foldersFirst) { b.collationKey.compareTo(a.collationKey) }
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}
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}
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"size_desc" -> {
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explorerElements.sortWith { a, b ->
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doSort(a, b, foldersFirst) { (b.stat.size - a.stat.size).toInt() }
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}
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}
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"date_desc" -> {
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explorerElements.sortWith { a, b ->
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doSort(a, b, foldersFirst) { b.stat.mTime.compareTo(a.stat.mTime) }
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}
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}
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}
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}
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}
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} |