Move components to separate modules

8 files changed, 1016 insertions, 0 deletions

diff --git a/colorpicker/src/androidTest/java/ca/allanwang/kau/colorpicker/ExampleInstrumentedTest.java b/colorpicker/src/androidTest/java/ca/allanwang/kau/colorpicker/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..2b22d0f
--- /dev/null
+++ b/colorpicker/src/androidTest/java/ca/allanwang/kau/colorpicker/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package ca.allanwang.kau.colorpicker;
+
+import android.content.Context;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumentation test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() throws Exception {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getTargetContext();
+
+        assertEquals("ca.allanwang.kau.colorpicker.test", appContext.getPackageName());
+    }
+}
diff --git a/colorpicker/src/main/AndroidManifest.xml b/colorpicker/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..5fa1ce3
--- /dev/null
+++ b/colorpicker/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+<manifest package="ca.allanwang.kau.colorpicker" />
diff --git a/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/CircleView.kt b/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/CircleView.kt
new file mode 100644
index 0000000..04b26cb
--- /dev/null
+++ b/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/CircleView.kt
@@ -0,0 +1,228 @@
+package ca.allanwang.kau.colorpicker
+
+import android.animation.Animator
+import android.animation.AnimatorListenerAdapter
+import android.animation.ValueAnimator
+import android.content.Context
+import android.content.res.ColorStateList
+import android.graphics.Canvas
+import android.graphics.Color
+import android.graphics.Paint
+import android.graphics.Rect
+import android.graphics.drawable.Drawable
+import android.graphics.drawable.RippleDrawable
+import android.graphics.drawable.ShapeDrawable
+import android.graphics.drawable.StateListDrawable
+import android.graphics.drawable.shapes.OvalShape
+import android.os.Build
+import android.support.annotation.ColorInt
+import android.support.annotation.ColorRes
+import android.support.annotation.FloatRange
+import android.support.v4.view.GravityCompat
+import android.support.v4.view.ViewCompat
+import android.util.AttributeSet
+import android.view.Gravity
+import android.widget.FrameLayout
+import android.widget.Toast
+import ca.allanwang.kau.utils.color
+import ca.allanwang.kau.utils.getDip
+import ca.allanwang.kau.utils.toColor
+import ca.allanwang.kau.utils.toHSV
+
+/**
+ * Created by Allan Wang on 2017-06-10.
+ *
+ * An extension of MaterialDialog's CircleView with animation selection
+ * [https://github.com/afollestad/material-dialogs/blob/master/commons/src/main/java/com/afollestad/materialdialogs/color/CircleView.java]
+ */
+class CircleView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) : FrameLayout(context, attrs, defStyleAttr) {
+
+    private val borderWidthMicro: Float = context.getDip(1f)
+    private val borderWidthSmall: Float = context.getDip(3f)
+    private val borderWidthLarge: Float = context.getDip(5f)
+    private var whiteOuterBound: Float = borderWidthLarge
+
+    private val outerPaint: Paint = Paint().apply { isAntiAlias = true }
+    private val whitePaint: Paint = Paint().apply { isAntiAlias = true; color = Color.WHITE }
+    private val innerPaint: Paint = Paint().apply { isAntiAlias = true }
+    private var selected: Boolean = false
+    var withBorder: Boolean = false
+        get() = field
+        set(value) {
+            if (field != value) {
+                field = value
+                invalidate()
+            }
+        }
+
+    init {
+        update(Color.DKGRAY)
+        setWillNotDraw(false)
+    }
+
+    private fun update(@ColorInt color: Int) {
+        innerPaint.color = color
+        outerPaint.color = shiftColorDown(color)
+
+        val selector = createSelector(color)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            val states = arrayOf(intArrayOf(android.R.attr.state_pressed))
+            val colors = intArrayOf(shiftColorUp(color))
+            val rippleColors = ColorStateList(states, colors)
+            foreground = RippleDrawable(rippleColors, selector, null)
+        } else {
+            foreground = selector
+        }
+    }
+
+    override fun setBackgroundColor(@ColorInt color: Int) {
+        update(color)
+        requestLayout()
+        invalidate()
+    }
+
+    override fun setBackgroundResource(@ColorRes color: Int) {
+        setBackgroundColor(context.color(color))
+    }
+
+
+    @Deprecated("")
+    override fun setBackground(background: Drawable) {
+        throw IllegalStateException("Cannot use setBackground() on CircleView.")
+    }
+
+
+    @Deprecated("")
+    override fun setBackgroundDrawable(background: Drawable) {
+        throw IllegalStateException("Cannot use setBackgroundDrawable() on CircleView.")
+    }
+
+
+    @Deprecated("")
+    override fun setActivated(activated: Boolean) {
+        throw IllegalStateException("Cannot use setActivated() on CircleView.")
+    }
+
+    override fun setSelected(selected: Boolean) {
+        this.selected = selected
+        whiteOuterBound = borderWidthLarge
+        invalidate()
+    }
+
+    fun animateSelected(selected: Boolean) {
+        if (this.selected == selected) return
+        this.selected = true // We need to draw the other bands
+        val range = if (selected) Pair(-borderWidthSmall, borderWidthLarge) else Pair(borderWidthLarge, -borderWidthSmall)
+        val animator = ValueAnimator.ofFloat(range.first, range.second)
+        with(animator) {
+            reverse()
+            duration = 150L
+            addUpdateListener { animation ->
+                whiteOuterBound = animation.animatedValue as Float
+                invalidate()
+            }
+            addListener(object : AnimatorListenerAdapter() {
+                override fun onAnimationEnd(animation: Animator) {
+                    this@CircleView.selected = selected
+                }
+
+                override fun onAnimationCancel(animation: Animator) {
+                    this@CircleView.selected = selected
+                }
+            })
+            start()
+        }
+    }
+
+    override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
+        super.onMeasure(widthMeasureSpec, widthMeasureSpec)
+        setMeasuredDimension(measuredWidth, measuredWidth)
+    }
+
+    override fun onDraw(canvas: Canvas) {
+        super.onDraw(canvas)
+        val centerWidth = (measuredWidth / 2).toFloat()
+        val centerHeight = (measuredHeight / 2).toFloat()
+        if (withBorder) canvas.drawCircle(centerWidth, centerHeight, centerWidth, whitePaint)
+        if (selected) {
+            val whiteRadius = centerWidth - whiteOuterBound
+            val innerRadius = whiteRadius - borderWidthSmall
+            if (whiteRadius >= centerWidth) {
+                canvas.drawCircle(centerWidth, centerHeight, centerWidth, whitePaint)
+            } else {
+                canvas.drawCircle(centerWidth, centerHeight, if (withBorder) centerWidth - borderWidthMicro else centerWidth, outerPaint)
+                canvas.drawCircle(centerWidth, centerHeight, whiteRadius, whitePaint)
+            }
+            canvas.drawCircle(centerWidth, centerHeight, innerRadius, innerPaint)
+        } else {
+            canvas.drawCircle(centerWidth, centerHeight, if (withBorder) centerWidth - borderWidthMicro else centerWidth, innerPaint)
+        }
+    }
+
+    private fun createSelector(color: Int): Drawable {
+        val darkerCircle = ShapeDrawable(OvalShape())
+        darkerCircle.paint.color = translucentColor(shiftColorUp(color))
+        val stateListDrawable = StateListDrawable()
+        stateListDrawable.addState(intArrayOf(android.R.attr.state_pressed), darkerCircle)
+        return stateListDrawable
+    }
+
+    fun showHint(color: Int) {
+        val screenPos = IntArray(2)
+        val displayFrame = Rect()
+        getLocationOnScreen(screenPos)
+        getWindowVisibleDisplayFrame(displayFrame)
+        val context = context
+        val width = width
+        val height = height
+        val midy = screenPos[1] + height / 2
+        var referenceX = screenPos[0] + width / 2
+        if (ViewCompat.getLayoutDirection(this) == ViewCompat.LAYOUT_DIRECTION_LTR) {
+            val screenWidth = context.resources.displayMetrics.widthPixels
+            referenceX = screenWidth - referenceX // mirror
+        }
+        val cheatSheet = Toast
+                .makeText(context, String.format("#%06X", 0xFFFFFF and color), Toast.LENGTH_SHORT)
+        if (midy < displayFrame.height()) {
+            // Show along the top; follow action buttons
+            cheatSheet.setGravity(Gravity.TOP or GravityCompat.END, referenceX,
+                    screenPos[1] + height - displayFrame.top)
+        } else {
+            // Show along the bottom center
+            cheatSheet.setGravity(Gravity.BOTTOM or Gravity.CENTER_HORIZONTAL, 0, height)
+        }
+        cheatSheet.show()
+    }
+
+    companion object {
+
+        @ColorInt
+        @JvmStatic
+        private fun translucentColor(color: Int): Int {
+            val factor = 0.7f
+            val alpha = Math.round(Color.alpha(color) * factor)
+            val red = Color.red(color)
+            val green = Color.green(color)
+            val blue = Color.blue(color)
+            return Color.argb(alpha, red, green, blue)
+        }
+
+        @ColorInt
+        @JvmStatic
+        fun shiftColor(@ColorInt color: Int,
+                       @FloatRange(from = 0.0, to = 2.0) by: Float): Int {
+            if (by == 1f) return color
+            val hsv = color.toHSV()
+            hsv[2] *= by // value component
+            return hsv.toColor()
+        }
+
+        @ColorInt
+        @JvmStatic
+        fun shiftColorDown(@ColorInt color: Int): Int = shiftColor(color, 0.9f)
+
+        @ColorInt
+        @JvmStatic
+        fun shiftColorUp(@ColorInt color: Int): Int = shiftColor(color, 1.1f)
+    }
+}
\ No newline at end of file
diff --git a/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPalette.kt b/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPalette.kt
new file mode 100644
index 0000000..b08767c
--- /dev/null
+++ b/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPalette.kt
@@ -0,0 +1,349 @@
+package ca.allanwang.kau.colorpicker
+
+import android.graphics.Color
+
+/**
+ * @author Aidan Follestad (afollestad)
+ */
+internal object ColorPalette {
+
+    val PRIMARY_COLORS: IntArray by lazy {
+        colorArrayOf(
+                "#F44336",
+                "#E91E63",
+                "#9C27B0",
+                "#673AB7",
+                "#3F51B5",
+                "#2196F3",
+                "#03A9F4",
+                "#00BCD4",
+                "#009688",
+                "#4CAF50",
+                "#8BC34A",
+                "#CDDC39",
+                "#FFEB3B",
+                "#FFC107",
+                "#FF9800",
+                "#FF5722",
+                "#795548",
+                "#9E9E9E",
+                "#607D8B")
+    }
+
+    val PRIMARY_COLORS_SUB: Array<IntArray> by lazy {
+        arrayOf(colorArrayOf(
+                "#FFEBEE",
+                "#FFCDD2",
+                "#EF9A9A",
+                "#E57373",
+                "#EF5350",
+                "#F44336",
+                "#E53935",
+                "#D32F2F",
+                "#C62828",
+                "#B71C1C"
+        ), colorArrayOf(
+                "#FCE4EC",
+                "#F8BBD0",
+                "#F48FB1",
+                "#F06292",
+                "#EC407A",
+                "#E91E63",
+                "#D81B60",
+                "#C2185B",
+                "#AD1457",
+                "#880E4F"
+        ), colorArrayOf(
+                "#F3E5F5",
+                "#E1BEE7",
+                "#CE93D8",
+                "#BA68C8",
+                "#AB47BC",
+                "#9C27B0",
+                "#8E24AA",
+                "#7B1FA2",
+                "#6A1B9A",
+                "#4A148C"
+        ), colorArrayOf(
+                "#EDE7F6",
+                "#D1C4E9",
+                "#B39DDB",
+                "#9575CD",
+                "#7E57C2",
+                "#673AB7",
+                "#5E35B1",
+                "#512DA8",
+                "#4527A0",
+                "#311B92"
+        ), colorArrayOf(
+                "#E8EAF6",
+                "#C5CAE9",
+                "#9FA8DA",
+                "#7986CB",
+                "#5C6BC0",
+                "#3F51B5",
+                "#3949AB",
+                "#303F9F",
+                "#283593",
+                "#1A237E"
+        ), colorArrayOf(
+                "#E3F2FD",
+                "#BBDEFB",
+                "#90CAF9",
+                "#64B5F6",
+                "#42A5F5",
+                "#2196F3",
+                "#1E88E5",
+                "#1976D2",
+                "#1565C0",
+                "#0D47A1"
+        ), colorArrayOf(
+                "#E1F5FE",
+                "#B3E5FC",
+                "#81D4FA",
+                "#4FC3F7",
+                "#29B6F6",
+                "#03A9F4",
+                "#039BE5",
+                "#0288D1",
+                "#0277BD",
+                "#01579B"
+        ), colorArrayOf(
+                "#E0F7FA",
+                "#B2EBF2",
+                "#80DEEA",
+                "#4DD0E1",
+                "#26C6DA",
+                "#00BCD4",
+                "#00ACC1",
+                "#0097A7",
+                "#00838F",
+                "#006064"
+        ), colorArrayOf(
+                "#E0F2F1",
+                "#B2DFDB",
+                "#80CBC4",
+                "#4DB6AC",
+                "#26A69A",
+                "#009688",
+                "#00897B",
+                "#00796B",
+                "#00695C",
+                "#004D40"
+        ), colorArrayOf(
+                "#E8F5E9",
+                "#C8E6C9",
+                "#A5D6A7",
+                "#81C784",
+                "#66BB6A",
+                "#4CAF50",
+                "#43A047",
+                "#388E3C",
+                "#2E7D32",
+                "#1B5E20"
+        ), colorArrayOf(
+                "#F1F8E9",
+                "#DCEDC8",
+                "#C5E1A5",
+                "#AED581",
+                "#9CCC65",
+                "#8BC34A",
+                "#7CB342",
+                "#689F38",
+                "#558B2F",
+                "#33691E"
+        ), colorArrayOf(
+                "#F9FBE7",
+                "#F0F4C3",
+                "#E6EE9C",
+                "#DCE775",
+                "#D4E157",
+                "#CDDC39",
+                "#C0CA33",
+                "#AFB42B",
+                "#9E9D24",
+                "#827717"
+        ), colorArrayOf(
+                "#FFFDE7",
+                "#FFF9C4",
+                "#FFF59D",
+                "#FFF176",
+                "#FFEE58",
+                "#FFEB3B",
+                "#FDD835",
+                "#FBC02D",
+                "#F9A825",
+                "#F57F17"
+        ), colorArrayOf(
+                "#FFF8E1",
+                "#FFECB3",
+                "#FFE082",
+                "#FFD54F",
+                "#FFCA28",
+                "#FFC107",
+                "#FFB300",
+                "#FFA000",
+                "#FF8F00",
+                "#FF6F00"
+        ), colorArrayOf(
+                "#FFF3E0",
+                "#FFE0B2",
+                "#FFCC80",
+                "#FFB74D",
+                "#FFA726",
+                "#FF9800",
+                "#FB8C00",
+                "#F57C00",
+                "#EF6C00",
+                "#E65100"
+        ), colorArrayOf(
+                "#FBE9E7",
+                "#FFCCBC",
+                "#FFAB91",
+                "#FF8A65",
+                "#FF7043",
+                "#FF5722",
+                "#F4511E",
+                "#E64A19",
+                "#D84315",
+                "#BF360C"
+        ), colorArrayOf(
+                "#EFEBE9",
+                "#D7CCC8",
+                "#BCAAA4",
+                "#A1887F",
+                "#8D6E63",
+                "#795548",
+                "#6D4C41",
+                "#5D4037",
+                "#4E342E",
+                "#3E2723"
+        ), colorArrayOf(
+                "#FAFAFA",
+                "#F5F5F5",
+                "#EEEEEE",
+                "#E0E0E0",
+                "#BDBDBD",
+                "#9E9E9E",
+                "#757575",
+                "#616161",
+                "#424242",
+                "#212121"
+        ), colorArrayOf(
+                "#ECEFF1",
+                "#CFD8DC",
+                "#B0BEC5",
+                "#90A4AE",
+                "#78909C",
+                "#607D8B",
+                "#546E7A",
+                "#455A64",
+                "#37474F",
+                "#263238"))
+    }
+
+    val ACCENT_COLORS: IntArray by lazy {
+        colorArrayOf(
+                "#FF1744",
+                "#F50057",
+                "#D500F9",
+                "#651FFF",
+                "#3D5AFE",
+                "#2979FF",
+                "#00B0FF",
+                "#00E5FF",
+                "#1DE9B6",
+                "#00E676",
+                "#76FF03",
+                "#C6FF00",
+                "#FFEA00",
+                "#FFC400",
+                "#FF9100",
+                "#FF3D00")
+    }
+
+    val ACCENT_COLORS_SUB: Array<IntArray> by lazy {
+        arrayOf(colorArrayOf("#FF8A80",
+                "#FF5252",
+                "#FF1744",
+                "#D50000"
+        ), colorArrayOf(
+                "#FF80AB",
+                "#FF4081",
+                "#F50057",
+                "#C51162"
+        ), colorArrayOf(
+                "#EA80FC",
+                "#E040FB",
+                "#D500F9",
+                "#AA00FF"
+        ), colorArrayOf(
+                "#B388FF",
+                "#7C4DFF",
+                "#651FFF",
+                "#6200EA"
+        ), colorArrayOf(
+                "#8C9EFF",
+                "#536DFE",
+                "#3D5AFE",
+                "#304FFE"
+        ), colorArrayOf(
+                "#82B1FF",
+                "#448AFF",
+                "#2979FF",
+                "#2962FF"
+        ), colorArrayOf(
+                "#80D8FF",
+                "#40C4FF",
+                "#00B0FF",
+                "#0091EA"
+        ), colorArrayOf(
+                "#84FFFF",
+                "#18FFFF",
+                "#00E5FF",
+                "#00B8D4"
+        ), colorArrayOf(
+                "#A7FFEB",
+                "#64FFDA",
+                "#1DE9B6",
+                "#00BFA5"
+        ), colorArrayOf(
+                "#B9F6CA",
+                "#69F0AE",
+                "#00E676",
+                "#00C853"
+        ), colorArrayOf(
+                "#CCFF90",
+                "#B2FF59",
+                "#76FF03",
+                "#64DD17"
+        ), colorArrayOf(
+                "#F4FF81",
+                "#EEFF41",
+                "#C6FF00",
+                "#AEEA00"
+        ), colorArrayOf(
+                "#FFFF8D",
+                "#FFFF00",
+                "#FFEA00",
+                "#FFD600"
+        ), colorArrayOf(
+                "#FFE57F",
+                "#FFD740",
+                "#FFC400",
+                "#FFAB00"
+        ), colorArrayOf(
+                "#FFD180",
+                "#FFAB40",
+                "#FF9100",
+                "#FF6D00"
+        ), colorArrayOf(
+                "#FF9E80",
+                "#FF6E40",
+                "#FF3D00",
+                "#DD2C00"))
+    }
+
+    fun colorArrayOf(vararg colors: String) = colors.map { Color.parseColor(it) }.toIntArray()
+}
+
diff --git a/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPickerDialog.kt b/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPickerDialog.kt
new file mode 100644
index 0000000..6d23ade
--- /dev/null
+++ b/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPickerDialog.kt
@@ -0,0 +1,82 @@
+package ca.allanwang.kau.colorpicker
+
+import android.content.Context
+import android.graphics.Color
+import android.support.annotation.DimenRes
+import android.support.annotation.StringRes
+import ca.allanwang.kau.R
+import ca.allanwang.kau.utils.string
+import com.afollestad.materialdialogs.MaterialDialog
+import com.afollestad.materialdialogs.Theme
+
+class ColorBuilder : ColorContract {
+    override var title: String? = null
+    override var titleRes: Int = -1
+    override var allowCustom: Boolean = true
+    override var allowCustomAlpha: Boolean = false
+    override var isAccent: Boolean = false
+    override var defaultColor: Int = Color.BLACK
+    override var doneText: Int = R.string.kau_done
+    override var backText: Int = R.string.kau_back
+    override var cancelText: Int = R.string.kau_cancel
+    override var presetText: Int = R.string.kau_md_presets
+    override var customText: Int = R.string.kau_md_custom
+        get() = if (allowCustom) field else 0
+    override var dynamicButtonColors: Boolean = true
+    override var circleSizeRes: Int = R.dimen.kau_color_circle_size
+    override var colorCallback: ((selectedColor: Int) -> Unit)? = null
+    override var colorsTop: IntArray? = null
+    override var colorsSub: Array<IntArray>? = null
+    override var theme: Theme? = null
+}
+
+interface ColorContract {
+    var title: String?
+    var titleRes: Int @StringRes set
+    var allowCustom: Boolean
+    var allowCustomAlpha: Boolean
+    var isAccent: Boolean
+    var defaultColor: Int @StringRes set
+    var doneText: Int @StringRes set
+    var backText: Int @StringRes set
+    var cancelText: Int @StringRes set
+    var presetText: Int
+        @StringRes set
+    var customText: Int @StringRes set
+    var dynamicButtonColors: Boolean
+    var circleSizeRes: Int @DimenRes set
+    var colorCallback: ((selectedColor: Int) -> Unit)?
+    var colorsTop: IntArray?
+    var colorsSub: Array<IntArray>?
+    var theme: Theme?
+}
+
+/**
+ * This is the extension that allows us to initialize the dialog
+ * Note that this returns just the dialog; you still need to call .show() to show it
+ */
+fun Context.colorPickerDialog(action: ColorContract.() -> Unit): MaterialDialog {
+    val b = ColorBuilder()
+    b.action()
+    return colorPickerDialog(b)
+}
+
+fun Context.colorPickerDialog(contract: ColorContract): MaterialDialog {
+    val view = ColorPickerView(this)
+    val dialog = with(MaterialDialog.Builder(this)) {
+        title(string(contract.titleRes, contract.title) ?: string(R.string.kau_md_color_palette))
+        customView(view, false)
+        autoDismiss(false)
+        positiveText(contract.doneText)
+        negativeText(contract.cancelText)
+        if (contract.allowCustom) neutralText(contract.presetText)
+        onPositive { dialog, _ -> contract.colorCallback?.invoke(view.selectedColor); dialog.dismiss() }
+        onNegative { _, _ -> view.backOrCancel() }
+        if (contract.allowCustom) onNeutral { _, _ -> view.toggleCustom() }
+        showListener { view.refreshColors() }
+        if (contract.theme != null) theme(contract.theme!!)
+        build()
+    }
+    view.bind(contract, dialog)
+    return dialog
+}
\ No newline at end of file
diff --git a/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPickerView.kt b/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPickerView.kt
new file mode 100644
index 0000000..d86518c
--- /dev/null
+++ b/colorpicker/src/main/kotlin/ca/allanwang/kau/colorpicker/ColorPickerView.kt
@@ -0,0 +1,310 @@
+package ca.allanwang.kau.colorpicker
+
+import android.content.Context
+import android.graphics.Color
+import android.support.annotation.ColorInt
+import android.support.v4.content.res.ResourcesCompat
+import android.text.Editable
+import android.text.InputFilter
+import android.text.TextWatcher
+import android.util.AttributeSet
+import android.view.View
+import android.view.ViewGroup
+import android.widget.*
+import ca.allanwang.kau.R
+import ca.allanwang.kau.colorpicker.CircleView
+import ca.allanwang.kau.utils.*
+import com.afollestad.materialdialogs.DialogAction
+import com.afollestad.materialdialogs.MaterialDialog
+import com.afollestad.materialdialogs.color.FillGridView
+import java.util.*
+
+/**
+ * Created by Allan Wang on 2017-06-08.
+ *
+ * ColorPicker component of the ColorPickerDialog
+ */
+internal class ColorPickerView @JvmOverloads constructor(
+        context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0
+) : ScrollView(context, attrs, defStyleAttr) {
+    var selectedColor: Int = -1
+    var isInSub: Boolean = false
+    var isInCustom: Boolean = false
+    var circleSize: Int = context.dimen(R.dimen.kau_cp_circle_size).toInt()
+    val backgroundColor = context.resolveColor(R.attr.md_background_color,
+            if (context.resolveColor(android.R.attr.textColorPrimary).isColorDark) Color.WHITE else 0xff424242.toInt())
+    val backgroundColorTint = backgroundColor.colorToForeground()
+    lateinit var dialog: MaterialDialog
+    lateinit var builder: ColorContract
+    lateinit var colorsTop: IntArray
+    var colorsSub: Array<IntArray>? = null
+    var topIndex: Int = -1
+    var subIndex: Int = -1
+    var colorIndex: Int
+        get() = if (isInSub) subIndex else topIndex
+        set(value) {
+            if (isInSub) subIndex = value
+            else {
+                topIndex = value
+                if (colorsSub != null && colorsSub!!.size > value) {
+                    dialog.setActionButton(DialogAction.NEGATIVE, builder.backText)
+                    isInSub = true
+                    invalidateGrid()
+                }
+            }
+        }
+
+
+    val gridView: FillGridView by bindView(R.id.md_grid)
+    val customFrame: LinearLayout by bindView(R.id.md_colorChooserCustomFrame)
+    val customColorIndicator: View by bindView(R.id.md_colorIndicator)
+    val hexInput: EditText by bindView(R.id.md_hexInput)
+    val alphaLabel: TextView by bindView(R.id.md_colorALabel)
+    val alphaSeekbar: SeekBar by bindView(R.id.md_colorA)
+    val alphaValue: TextView by bindView(R.id.md_colorAValue)
+    val redSeekbar: SeekBar by bindView(R.id.md_colorR)
+    val redValue: TextView by bindView(R.id.md_colorRValue)
+    val greenSeekbar: SeekBar by bindView(R.id.md_colorG)
+    val greenValue: TextView by bindView(R.id.md_colorGValue)
+    val blueSeekbar: SeekBar by bindView(R.id.md_colorB)
+    val blueValue: TextView by bindView(R.id.md_colorBValue)
+
+    var customHexTextWatcher: TextWatcher? = null
+    var customRgbListener: SeekBar.OnSeekBarChangeListener? = null
+
+    init {
+        View.inflate(context, R.layout.md_dialog_colorchooser, this)
+    }
+
+    fun bind(builder: ColorContract, dialog: MaterialDialog) {
+        this.builder = builder
+        this.dialog = dialog
+        this.colorsTop = with(builder) {
+            if (colorsTop != null) colorsTop!!
+            else if (isAccent) ColorPalette.ACCENT_COLORS
+            else ColorPalette.PRIMARY_COLORS
+        }
+        this.colorsSub = with(builder) {
+            if (colorsTop != null) colorsSub
+            else if (isAccent) ColorPalette.ACCENT_COLORS_SUB
+            else ColorPalette.PRIMARY_COLORS_SUB
+        }
+        this.selectedColor = builder.defaultColor
+        if (builder.allowCustom) {
+            if (!builder.allowCustomAlpha) {
+                alphaLabel.gone()
+                alphaSeekbar.gone()
+                alphaValue.gone()
+                hexInput.hint = String.format("%06X", selectedColor)
+                hexInput.filters = arrayOf(InputFilter.LengthFilter(6))
+            } else {
+                hexInput.hint = String.format("%08X", selectedColor)
+                hexInput.filters = arrayOf(InputFilter.LengthFilter(8))
+            }
+        }
+        if (findColor(builder.defaultColor) || !builder.allowCustom) isInCustom = true //when toggled this will be false
+        toggleCustom()
+    }
+
+    fun backOrCancel() {
+        if (isInSub) {
+            dialog.setActionButton(DialogAction.NEGATIVE, builder.cancelText)
+            //to top
+            isInSub = false
+            subIndex = -1
+            invalidateGrid()
+        } else {
+            dialog.cancel()
+        }
+    }
+
+    fun toggleCustom() {
+        isInCustom = !isInCustom
+        if (isInCustom) {
+            isInSub = false
+            if (builder.allowCustom) dialog.setActionButton(DialogAction.NEUTRAL, builder.presetText)
+            dialog.setActionButton(DialogAction.NEGATIVE, builder.cancelText)
+            customHexTextWatcher = object : TextWatcher {
+                override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {}
+
+                override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
+                    try {
+                        selectedColor = Color.parseColor("#" + s.toString())
+                    } catch (e: IllegalArgumentException) {
+                        selectedColor = Color.BLACK
+                    }
+
+                    customColorIndicator.setBackgroundColor(selectedColor)
+                    if (alphaSeekbar.isVisible()) {
+                        val alpha = Color.alpha(selectedColor)
+                        alphaSeekbar.progress = alpha
+                        alphaValue.text = String.format(Locale.CANADA, "%d", alpha)
+                    }
+                    redSeekbar.progress = Color.red(selectedColor)
+                    greenSeekbar.progress = Color.green(selectedColor)
+                    blueSeekbar.progress = Color.blue(selectedColor)
+                    isInSub = false
+                    topIndex = -1
+                    subIndex = -1
+                    refreshColors()
+                }
+
+                override fun afterTextChanged(s: Editable?) {}
+            }
+            hexInput.setText(selectedColor.toHexString(builder.allowCustomAlpha, false))
+            hexInput.addTextChangedListener(customHexTextWatcher)
+            customRgbListener = object : SeekBar.OnSeekBarChangeListener {
+                override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
+                    if (fromUser) {
+                        val color = if (builder.allowCustomAlpha)
+                            Color.argb(alphaSeekbar.progress,
+                                    redSeekbar.progress,
+                                    greenSeekbar.progress,
+                                    blueSeekbar.progress)
+                        else Color.rgb(redSeekbar.progress,
+                                greenSeekbar.progress,
+                                blueSeekbar.progress)
+
+                        hexInput.setText(color.toHexString(builder.allowCustomAlpha, false))
+                    }
+                    if (builder.allowCustomAlpha) alphaValue.text = alphaSeekbar.progress.toString()
+                    redValue.text = redSeekbar.progress.toString()
+                    greenValue.text = greenSeekbar.progress.toString()
+                    blueValue.text = blueSeekbar.progress.toString()
+                }
+
+                override fun onStartTrackingTouch(seekBar: SeekBar) {}
+
+                override fun onStopTrackingTouch(seekBar: SeekBar) {}
+            }
+            redSeekbar.setOnSeekBarChangeListener(customRgbListener)
+            greenSeekbar.setOnSeekBarChangeListener(customRgbListener)
+            blueSeekbar.setOnSeekBarChangeListener(customRgbListener)
+            if (alphaSeekbar.isVisible())
+                alphaSeekbar.setOnSeekBarChangeListener(customRgbListener)
+            hexInput.setText(selectedColor.toHexString(alphaSeekbar.isVisible(), false))
+            gridView.fadeOut(onFinish = { gridView.gone() })
+            customFrame.fadeIn()
+        } else {
+            findColor(selectedColor)
+            if (builder.allowCustom) dialog.setActionButton(DialogAction.NEUTRAL, builder.customText)
+            dialog.setActionButton(DialogAction.NEGATIVE, if (isInSub) builder.backText else builder.cancelText)
+            gridView.fadeIn(onStart = { invalidateGrid() })
+            customFrame.fadeOut(onFinish = { customFrame.gone() })
+            hexInput.removeTextChangedListener(customHexTextWatcher)
+            customHexTextWatcher = null
+            alphaSeekbar.setOnSeekBarChangeListener(null)
+            redSeekbar.setOnSeekBarChangeListener(null)
+            greenSeekbar.setOnSeekBarChangeListener(null)
+            blueSeekbar.setOnSeekBarChangeListener(null)
+            customRgbListener = null
+        }
+    }
+
+    fun refreshColors() {
+        if (!isInCustom) findColor(selectedColor)
+        //Ensure that our tinted color is still visible against the background
+        val visibleColor = if (selectedColor.isColorVisibleOn(backgroundColor)) selectedColor else backgroundColorTint
+        if (builder.dynamicButtonColors) {
+            dialog.getActionButton(DialogAction.POSITIVE).setTextColor(visibleColor)
+            dialog.getActionButton(DialogAction.NEGATIVE).setTextColor(visibleColor)
+            dialog.getActionButton(DialogAction.NEUTRAL).setTextColor(visibleColor)
+        }
+        if (!builder.allowCustom || !isInCustom) return
+        if (builder.allowCustomAlpha)
+            alphaSeekbar.visible().tint(visibleColor)
+        redSeekbar.tint(visibleColor)
+        greenSeekbar.tint(visibleColor)
+        blueSeekbar.tint(visibleColor)
+        hexInput.tint(visibleColor)
+    }
+
+    fun findColor(@ColorInt color: Int): Boolean {
+        topIndex = -1
+        subIndex = -1
+        colorsTop.forEachIndexed {
+            index, topColor ->
+            if (findSubColor(color, index)) {
+                topIndex = index
+                return true
+            }
+            if (topColor == color) { // If no sub colors exists and top color matches
+                topIndex = index
+                return true
+            }
+        }
+        return false
+    }
+
+    fun findSubColor(@ColorInt color: Int, topIndex: Int): Boolean {
+        if (colorsSub == null || colorsSub!!.size <= topIndex) return false
+        colorsSub!![topIndex].forEachIndexed {
+            index, subColor ->
+            if (subColor == color) {
+                subIndex = index
+                return true
+            }
+        }
+        return false
+    }
+
+    fun invalidateGrid() {
+        if (gridView.adapter == null) {
+            gridView.adapter = ColorGridAdapter()
+            gridView.selector = ResourcesCompat.getDrawable(resources, R.drawable.kau_transparent, null)
+        } else {
+            (gridView.adapter as BaseAdapter).notifyDataSetChanged()
+        }
+    }
+
+    inner class ColorGridAdapter : BaseAdapter(), OnClickListener, OnLongClickListener {
+        override fun onClick(v: View) {
+            if (v.tag != null && v.tag is String) {
+                val tags = (v.tag as String).split(":")
+                if (colorIndex == tags[0].toInt()) {
+                    colorIndex = tags[0].toInt() //Go to sub list if exists
+                    return
+                }
+                if (colorIndex != -1) (gridView.getChildAt(colorIndex) as CircleView).animateSelected(false)
+                selectedColor = tags[1].toInt()
+                refreshColors()
+                val currentSub = isInSub
+                colorIndex = tags[0].toInt()
+                if (currentSub == isInSub) (gridView.getChildAt(colorIndex) as CircleView).animateSelected(true)
+                //Otherwise we are invalidating our grid, so there is no point in animating
+            }
+        }
+
+        override fun onLongClick(v: View): Boolean {
+            if (v.tag != null && v.tag is String) {
+                val tag = (v.tag as String).split(":")
+                val color = tag[1].toInt()
+                (v as CircleView).showHint(color)
+                return true
+            }
+            return false
+        }
+
+        override fun getItem(position: Int): Any = if (isInSub) colorsSub!![topIndex][position] else colorsTop[position]
+
+        override fun getCount(): Int = if (isInSub) colorsSub!![topIndex].size else colorsTop.size
+
+        override fun getItemId(position: Int): Long = position.toLong()
+
+        override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
+            val view: CircleView = if (convertView == null)
+                CircleView(context).apply { layoutParams = AbsListView.LayoutParams(circleSize, circleSize) }
+            else
+                convertView as CircleView
+            val color: Int = if (isInSub) colorsSub!![topIndex][position] else colorsTop[position]
+            return view.apply {
+                setBackgroundColor(color)
+                isSelected = colorIndex == position
+                tag = "$position:$color"
+                setOnClickListener(this@ColorGridAdapter)
+                setOnLongClickListener(this@ColorGridAdapter)
+            }
+        }
+
+    }
+}
\ No newline at end of file
diff --git a/colorpicker/src/main/res/values/dimens.xml b/colorpicker/src/main/res/values/dimens.xml
new file mode 100644
index 0000000..193940e
--- /dev/null
+++ b/colorpicker/src/main/res/values/dimens.xml
@@ -0,0 +1,3 @@
+<resources>
+    <dimen name="kau_color_circle_size">56dp</dimen>
+</resources>
diff --git a/colorpicker/src/test/java/ca/allanwang/kau/colorpicker/ExampleUnitTest.java b/colorpicker/src/test/java/ca/allanwang/kau/colorpicker/ExampleUnitTest.java
new file mode 100644
index 0000000..f974ff7
--- /dev/null
+++ b/colorpicker/src/test/java/ca/allanwang/kau/colorpicker/ExampleUnitTest.java
@@ -0,0 +1,17 @@
+package ca.allanwang.kau.colorpicker;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() throws Exception {
+        assertEquals(4, 2 + 2);
+    }
+}
\ No newline at end of file