copy a part related to file picking into a separate module

simplefilepicker/build.gradle

@@ -0,0 +1,47 @@
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 24
+    buildToolsVersion "24.0.2"
+
+    defaultConfig {
+        minSdkVersion 16
+        targetSdkVersion 24
+        versionCode 1
+        versionName "1.0"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+}
+
+dependencies {
+    compile 'com.android.support:appcompat-v7:24.2.1'
+    compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
+}
+
+repositories {
+    mavenCentral()
+}
+
+buildscript {
+    ext.kotlin_version = '1.0.3'
+    repositories {
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath "org.jetbrains.kotlin:kotlin-android-extensions:$kotlin_version"
+    }
+}

simplefilepicker/proguard-rules.pro

@@ -0,0 +1,17 @@
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in $ANDROID_HOME/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the proguardFiles
+# directive in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}

simplefilepicker/src/main/AndroidManifest.xml

@@ -0,0 +1,9 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.simplemobiletools.filepicker">
+
+    <application
+        android:allowBackup="true"
+        android:label="@string/app_name">
+
+    </application>
+</manifest>

simplefilepicker/src/main/kotlin/com/simplemobiletools/filepicker/adapters/ItemsAdapter.kt

@@ -0,0 +1,79 @@
+package com.simplemobiletools.filepicker.adapters
+
+import android.content.Context
+import android.content.res.Resources
+import android.graphics.Bitmap
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.BaseAdapter
+import android.widget.ImageView
+import android.widget.TextView
+import com.simplemobiletools.filepicker.R
+import com.simplemobiletools.filepicker.extensions.formatSize
+import com.simplemobiletools.filepicker.extensions.getColoredIcon
+import com.simplemobiletools.filepicker.models.FileDirItem
+import kotlinx.android.synthetic.main.list_item.view.*
+
+class ItemsAdapter(context: Context, private val mItems: List<FileDirItem>) : BaseAdapter() {
+    private val mInflater: LayoutInflater
+    private val mFileBmp: Bitmap
+    private val mDirectoryBmp: Bitmap
+    private val mRes: Resources
+
+    init {
+        mInflater = context.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater
+
+        mRes = context.resources
+        mDirectoryBmp = mRes.getColoredIcon(R.color.thumbnail_grey, R.mipmap.directory)
+        mFileBmp = mRes.getColoredIcon(R.color.thumbnail_grey, R.mipmap.file)
+    }
+
+    override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
+        var view = convertView
+        val viewHolder: ViewHolder
+        if (view == null) {
+            view = mInflater.inflate(R.layout.list_item, parent, false)
+            viewHolder = ViewHolder(view)
+            view!!.tag = viewHolder
+        } else {
+            viewHolder = view.tag as ViewHolder
+        }
+
+        val item = mItems[position]
+        viewHolder.name.text = item.name
+
+        if (item.isDirectory) {
+            viewHolder.icon.setImageBitmap(mDirectoryBmp)
+            viewHolder.details.text = getChildrenCnt(item)
+        } else {
+            viewHolder.icon.setImageBitmap(mFileBmp)
+            viewHolder.details.text = item.size.formatSize()
+        }
+
+        return view
+    }
+
+    private fun getChildrenCnt(item: FileDirItem): String {
+        val children = item.children
+        return mRes.getQuantityString(R.plurals.items, children, children)
+    }
+
+    override fun getCount(): Int {
+        return mItems.size
+    }
+
+    override fun getItem(position: Int): Any {
+        return mItems[position]
+    }
+
+    override fun getItemId(position: Int): Long {
+        return 0
+    }
+
+    internal class ViewHolder(view: View) {
+        val name: TextView = view.item_name
+        val icon: ImageView = view.item_icon
+        val details: TextView = view.item_details
+    }
+}

simplefilepicker/src/main/kotlin/com/simplemobiletools/filepicker/dialogs/SelectFolderDialog.kt

@@ -0,0 +1,126 @@
+package com.simplemobiletools.filepicker.dialogs
+
+import android.app.Activity
+import android.app.Dialog
+import android.content.Intent
+import android.os.Bundle
+import android.support.v4.app.DialogFragment
+import android.support.v7.app.AlertDialog
+import android.view.View
+import com.simplemobiletools.filepicker.R
+import com.simplemobiletools.filepicker.adapters.ItemsAdapter
+import com.simplemobiletools.filepicker.extensions.getFilenameFromPath
+import com.simplemobiletools.filepicker.models.FileDirItem
+import kotlinx.android.synthetic.main.directory_picker.view.*
+import java.io.File
+import java.util.*
+import kotlin.comparisons.compareBy
+
+class SelectFolderDialog : DialogFragment() {
+    val SELECT_FOLDER_REQUEST = 1
+    val SELECT_FOLDER_PATH = "path"
+
+    companion object {
+        lateinit var mPath: String
+        var mFirstUpdate: Boolean = true
+
+        fun newInstance(path: String): SelectFolderDialog {
+            mPath = path
+            mFirstUpdate = true
+            return SelectFolderDialog()
+        }
+    }
+
+    lateinit var dialog: View
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        dialog = activity.layoutInflater.inflate(R.layout.directory_picker, null)
+
+        updateItems()
+        setupBreadcrumbs()
+
+        return AlertDialog.Builder(activity)
+                .setTitle(resources.getString(R.string.select_destination))
+                .setView(dialog)
+                .setPositiveButton(R.string.ok) { dialog, which -> sendResult() }
+                .setNegativeButton(R.string.cancel, null)
+                .create()
+    }
+
+    private fun updateItems() {
+        var items = getItems(mPath)
+        if (!containsDirectory(items) && !mFirstUpdate) {
+            sendResult()
+            return
+        }
+
+        items = items.sortedWith(compareBy({ !it.isDirectory }, { it.name }))
+
+        val adapter = ItemsAdapter(context, items)
+        dialog.directory_picker_list.adapter = adapter
+        //dialog.directory_picker_breadcrumbs.setInitialBreadcrumb(mPath)
+        dialog.directory_picker_list.setOnItemClickListener { adapterView, view, position, id ->
+            val item = items[position]
+            if (item.isDirectory) {
+                mPath = item.path
+                updateItems()
+            }
+        }
+
+        mFirstUpdate = false
+    }
+
+    private fun sendResult() {
+        val intent = Intent()
+        intent.putExtra(SELECT_FOLDER_PATH, mPath)
+        targetFragment.onActivityResult(SELECT_FOLDER_REQUEST, Activity.RESULT_OK, intent)
+        dismiss()
+    }
+
+    private fun setupBreadcrumbs() {
+        /*dialog.directory_picker_breadcrumbs.setListener { id ->
+            val item = dialog.directory_picker_breadcrumbs.getChildAt(id).tag as FileDirItem
+            mPath = item.path
+            updateItems()
+        }*/
+    }
+
+    private fun getItems(path: String): List<FileDirItem> {
+        //val showHidden = Config.newInstance(context).showHidden
+        val items = ArrayList<FileDirItem>()
+        val base = File(path)
+        val files = base.listFiles()
+        if (files != null) {
+            for (file in files) {
+                if (!file.isDirectory)
+                    continue
+
+          /*      if (!showHidden && file.isHidden)
+                    continue*/
+
+                val curPath = file.absolutePath
+                val curName = curPath.getFilenameFromPath()
+                val size = file.length()
+
+                items.add(FileDirItem(curPath, curName, file.isDirectory, getChildren(file), size))
+            }
+        }
+        return items
+    }
+
+    private fun getChildren(file: File): Int {
+        if (file.listFiles() == null || !file.isDirectory)
+            return 0
+
+        return file.listFiles().size
+    }
+
+    private fun containsDirectory(items: List<FileDirItem>): Boolean {
+        for (item in items) {
+            if (item.isDirectory) {
+                return true
+            }
+        }
+        return false
+    }
+}

simplefilepicker/src/main/kotlin/com/simplemobiletools/filepicker/extensions/long.kt

@@ -0,0 +1,12 @@
+package com.simplemobiletools.filepicker.extensions
+
+import java.text.DecimalFormat
+
+fun Long.formatSize(): String {
+    if (this <= 0)
+        return "0 B"
+
+    val units = arrayOf("B", "kB", "MB", "GB", "TB")
+    val digitGroups = (Math.log10(toDouble()) / Math.log10(1024.0)).toInt()
+    return DecimalFormat("#,##0.#").format(this / Math.pow(1024.0, digitGroups.toDouble())) + " " + units[digitGroups]
+}

simplefilepicker/src/main/kotlin/com/simplemobiletools/filepicker/extensions/resources.kt

@@ -0,0 +1,16 @@
+package com.simplemobiletools.filepicker.extensions
+
+import android.content.res.Resources
+import android.graphics.*
+
+fun Resources.getColoredIcon(colorId: Int, resId: Int): Bitmap {
+    val options = BitmapFactory.Options()
+    options.inMutable = true
+    val bitmap = BitmapFactory.decodeResource(this, resId, options)
+    val paint = Paint()
+    val filter = PorterDuffColorFilter(getColor(colorId), PorterDuff.Mode.SRC_IN)
+    paint.colorFilter = filter
+    val canvas = Canvas(bitmap)
+    canvas.drawBitmap(bitmap, 0f, 0f, paint)
+    return bitmap
+}

simplefilepicker/src/main/kotlin/com/simplemobiletools/filepicker/extensions/string.kt

@@ -0,0 +1,5 @@
+package com.simplemobiletools.filepicker.extensions
+
+fun String.getFilenameFromPath(): String {
+    return substring(lastIndexOf("/") + 1)
+}

simplefilepicker/src/main/kotlin/com/simplemobiletools/filepicker/models/FileDirItem.kt

@@ -0,0 +1,19 @@
+package com.simplemobiletools.filepicker.models
+
+class FileDirItem(val path: String, val name: String, val isDirectory: Boolean, val children: Int, val size: Long) :
+        Comparable<FileDirItem> {
+
+    override fun compareTo(other: FileDirItem): Int {
+        if (isDirectory && !other.isDirectory) {
+            return -1
+        } else if (!isDirectory && other.isDirectory) {
+            return 1
+        }
+
+        return name.toLowerCase().compareTo(other.name.toLowerCase())
+    }
+
+    override fun toString(): String {
+        return "FileDirItem{name=$name, isDirectory=$isDirectory, path=$path, children=$children, size=$size}"
+    }
+}

simplefilepicker/src/main/res/drawable-v21/selector.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <selector>
+            <item
+                android:drawable="@color/activated_item_foreground"
+                android:state_activated="true"/>
+        </selector>
+    </item>
+    <item>
+        <ripple android:color="@color/pressed_item_foreground">
+            <item android:id="@android:id/mask">
+                <color android:color="@android:color/white"/>
+            </item>
+        </ripple>
+    </item>
+</layer-list>

simplefilepicker/src/main/res/drawable/selector.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@color/pressed_item_foreground" android:state_pressed="true"/>
+    <item android:drawable="@color/activated_item_foreground" android:state_activated="true"/>
+</selector>

simplefilepicker/src/main/res/layout/directory_picker.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/directory_picker_holder"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical">
+
+    <com.simplemobiletools.filemanager.Breadcrumbs
+        android:id="@+id/directory_picker_breadcrumbs"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:padding="@dimen/activity_margin"/>
+
+    <ListView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/directory_picker_list"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"/>
+
+</LinearLayout>

simplefilepicker/src/main/res/layout/list_item.xml

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:foreground="@drawable/selector">
+
+    <RelativeLayout
+        android:id="@+id/item_holder"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingRight="@dimen/activity_margin">
+
+        <ImageView
+            android:id="@+id/item_icon"
+            android:layout_width="@dimen/icon_size"
+            android:layout_height="@dimen/icon_size"
+            android:paddingBottom="@dimen/medium_margin"
+            android:paddingTop="@dimen/medium_margin"
+            android:src="@mipmap/directory"/>
+
+        <TextView
+            android:id="@+id/item_name"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_alignTop="@+id/item_icon"
+            android:layout_toRightOf="@+id/item_icon"
+            android:ellipsize="end"
+            android:maxLines="3"
+            android:paddingLeft="@dimen/small_margin"
+            android:paddingTop="@dimen/small_margin"
+            android:text="Directory"/>
+
+        <TextView
+            android:id="@+id/item_details"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_below="@+id/item_name"
+            android:layout_toRightOf="@+id/item_icon"
+            android:paddingLeft="@dimen/small_margin"
+            android:text="1 KB"
+            android:textSize="@dimen/details_text_size"/>
+
+    </RelativeLayout>
+</FrameLayout>

simplefilepicker/src/main/res/values-de/strings.xml

@@ -0,0 +1,11 @@
+<resources>
+    <string name="app_name">Simple File Picker</string>
+    <string name="select_destination">Ziel auswählen</string>
+    <string name="ok">OK</string>
+    <string name="cancel">Abbrechen</string>
+
+    <plurals name="items">
+        <item quantity="one">1 Datei/Ordner</item>
+        <item quantity="other">%1$d Dateien/Ordner</item>
+    </plurals>
+</resources>

simplefilepicker/src/main/res/values-it/strings.xml

@@ -0,0 +1,11 @@
+<resources>
+    <string name="app_name">Simple File Picker</string>
+    <string name="select_destination">Seleziona destinazione</string>
+    <string name="ok">OK</string>
+    <string name="cancel">Annulla</string>
+
+    <plurals name="items">
+        <item quantity="one">1 elemento</item>
+        <item quantity="other">%1$d elementi</item>
+    </plurals>
+</resources>

simplefilepicker/src/main/res/values-ja/strings.xml

@@ -0,0 +1,11 @@
+<resources>
+    <string name="app_name">Simple File Picker</string>
+    <string name="select_destination">宛先を選択</string>
+    <string name="ok">OK</string>
+    <string name="cancel">Cancel</string>
+
+    <plurals name="items">
+        <item quantity="one">1 アイテム</item>
+        <item quantity="other">%1$d アイテム</item>
+    </plurals>
+</resources>

simplefilepicker/src/main/res/values-pt-rPT/strings.xml

@@ -0,0 +1,11 @@
+<resources>
+    <string name="app_name">Simple File Picker</string>
+    <string name="select_destination">Selecionar destino</string>
+    <string name="ok">OK</string>
+    <string name="cancel">Cancelar</string>
+
+    <plurals name="items">
+        <item quantity="one">1 item</item>
+        <item quantity="other">%1$d itens</item>
+    </plurals>
+</resources>

simplefilepicker/src/main/res/values-sv/strings.xml

@@ -0,0 +1,11 @@
+<resources>
+    <string name="app_name">Simple File Picker</string>
+    <string name="select_destination">Välj mål</string>
+    <string name="ok">OK</string>
+    <string name="cancel">Cancel</string>
+
+    <plurals name="items">
+        <item quantity="one">1 objekt</item>
+        <item quantity="other">%1$d objekt</item>
+    </plurals>
+</resources>

simplefilepicker/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="thumbnail_grey">#33000000</color>
+    <color name="pressed_item_foreground">#08000000</color>
+    <color name="activated_item_foreground">#44888888</color>
+</resources>

simplefilepicker/src/main/res/values/dimens.xml

@@ -0,0 +1,9 @@
+<resources>
+    <dimen name="activity_margin">16dp</dimen>
+    <dimen name="small_margin">6dp</dimen>
+    <dimen name="medium_margin">10dp</dimen>
+    <dimen name="icon_size">48dp</dimen>
+
+    <dimen name="details_text_size">12sp</dimen>
+    <dimen name="normal_text_size">14sp</dimen>
+</resources>

simplefilepicker/src/main/res/values/strings.xml

@@ -0,0 +1,11 @@
+<resources>
+    <string name="app_name">Simple File Picker</string>
+    <string name="select_destination">Select destination</string>
+    <string name="ok">OK</string>
+    <string name="cancel">Cancel</string>
+
+    <plurals name="items">
+        <item quantity="one">1 item</item>
+        <item quantity="other">%1$d items</item>
+    </plurals>
+</resources>