Merge "Reduce surface size when allocating intercept layer" into main

import android.app.TaskInfo

import android.app.TaskInfo

import android.content.Context

import android.content.Context

import android.graphics.PixelFormat

import android.graphics.PixelFormat

import android.graphics.Rect

import android.graphics.Region

import android.os.Binder

import android.os.Binder

import android.view.SurfaceControl

import android.view.SurfaceControl

import android.view.SurfaceControlViewHost

import android.view.SurfaceControlViewHost

import android.view.View

import android.view.View

import android.view.ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_REGION

import android.view.WindowManager

import android.view.WindowManager

import android.view.WindowlessWindowManager

import android.view.WindowlessWindowManager

import java.lang.Integer.MAX_VALUE

/**

/**

 * Manages a touchable surface that is intended to intercept touches.

 * Manages a touchable surface that is intended to intercept touches.

    ) {

    ) {

        rootView = View(context.createConfigurationContext(rootTaskInfo.configuration))

        rootView = View(context.createConfigurationContext(rootTaskInfo.configuration))

        // Set WM flags, tokens, and sizing on the touchable view. It will be the same size as its

        // Set WM flags, tokens, and sizing on the touchable view. Create the smallest sized surface

        // parent

        // possible for performance reasons. We don't use MATCH_PARENT here because there isn't

        // TODO (b/349828130): It's a bit wasteful to have the touch zone cover the whole app

        // actually a parent (like in normal windows) to resolve a size from, and can result in

        //  surface, even extending offscreen (keeps buffer active in memory), so can trim it down

        // an empty input region in the future.

        //  to the visible onscreen area in a future patch.

        val lp = WindowManager.LayoutParams(

        val lp = WindowManager.LayoutParams(

            rootTaskInfo.configuration.windowConfiguration.bounds.width(),

            1, 1,

            rootTaskInfo.configuration.windowConfiguration.bounds.height(),

            WindowManager.LayoutParams.TYPE_INPUT_CONSUMER,

            WindowManager.LayoutParams.TYPE_INPUT_CONSUMER,

            WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,

            WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,

            PixelFormat.TRANSPARENT

            PixelFormat.TRANSPARENT

        rootView?.setWillNotDraw(true)

        rootView?.setWillNotDraw(true)

        rootView?.parent?.requestTransparentRegion(rootView)

        rootView?.parent?.requestTransparentRegion(rootView)

        // Workaround for ensuring that we receive touches outside the bounds of the surface (input

        // currently uses the touchable region to determine if the window should receive events).

        // TODO(b/433258252): We can revert to using the full root bounds when there is a way to

        //                    declare that we don't want a buffer

        wwm.setInsets(viewHost!!.windowToken, TOUCHABLE_INSETS_REGION, Rect(), Rect(),

            Region(-MAX_VALUE / 2, -MAX_VALUE / 2, MAX_VALUE / 2, MAX_VALUE / 2))

        // Create a transaction so that we can activate and reposition our surface.

        // Create a transaction so that we can activate and reposition our surface.

        val t = SurfaceControl.Transaction()

        val t = SurfaceControl.Transaction()

        // Set layer to maximum. We want this surface to be above the app layer, or else touches

        // Set layer to maximum. We want this surface to be above the app layer, or else touches