Merge "Improve null safety for app pairs" into main

import android.graphics.Rect

import android.graphics.drawable.Drawable

import android.util.AttributeSet

import android.util.Log

import android.view.Gravity

import android.widget.FrameLayout

import com.android.launcher3.DeviceProfile

import com.android.launcher3.model.data.WorkspaceItemInfo

/**

 * A FrameLayout marking the area on an [AppPairIcon] where the visual icon will be drawn. One of

 */

class AppPairIconGraphic @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :

    FrameLayout(context, attrs) {

    private val TAG = "AppPairIconGraphic"

    companion object {

        // Design specs -- the below ratios are in relation to the size of a standard app icon.

        private const val OUTER_PADDING_SCALE = 1 / 30f

    private lateinit var parentIcon: AppPairIcon

    private lateinit var appPairBackground: Drawable

    private lateinit var appIcon1: Drawable

    private lateinit var appIcon2: Drawable

    private var appIcon1: Drawable? = null

    private var appIcon2: Drawable? = null

    fun init(grid: DeviceProfile, icon: AppPairIcon) {

        // Calculate device-specific measurements

        appPairBackground = AppPairIconBackground(context, this)

        appPairBackground.setBounds(0, 0, backgroundSize.toInt(), backgroundSize.toInt())

        applyIcons(parentIcon.info.contents)

    }

    /** Sets up app pair member icons for drawing. */

    private fun applyIcons(contents: ArrayList<WorkspaceItemInfo>) {

        // App pair should always contain 2 members; if not 2, return to avoid a crash loop

        if (contents.size != 2) {

            Log.w(TAG, "AppPair contents not 2, size: " + contents.size, Throwable())

            return

        }

        appIcon1 = parentIcon.info.contents[0].newIcon(context)

        appIcon2 = parentIcon.info.contents[1].newIcon(context)

        appIcon1.setBounds(0, 0, memberIconSize.toInt(), memberIconSize.toInt())

        appIcon2.setBounds(0, 0, memberIconSize.toInt(), memberIconSize.toInt())

        appIcon1?.setBounds(0, 0, memberIconSize.toInt(), memberIconSize.toInt())

        appIcon2?.setBounds(0, 0, memberIconSize.toInt(), memberIconSize.toInt())

    }

    /** Gets this icon graphic's bounds, with respect to the parent icon's coordinate system. */

    fun getIconBounds(outBounds: Rect) {

        outBounds.set(0, 0, backgroundSize.toInt(), backgroundSize.toInt())

        } else {

            canvas.translate(width / 2f - memberIconSize / 2f, innerPadding)

        }

        appIcon1.draw(canvas)

        appIcon1?.draw(canvas)

        canvas.restore()

        // Draw second icon

                height - (innerPadding + memberIconSize)

            )

        }

        appIcon2.draw(canvas)

        appIcon2?.draw(canvas)

        canvas.restore()

    }

}