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Commit 21dea1b3 authored by “Longbo's avatar “Longbo Committed by Longbo Wei
Browse files

a11y: ScrollPanel - Update hovered button style 

Bug: b/400964604
Test: AutoclickControllerTest
Flag: com.android.server.accessibility.enable_autoclick_indicator

Change-Id: Ic5a9ce3a6e9430ca7e3f1b37e787daa3b8a8f522
parent ad3850c3

services/accessibility/java/com/android/server/accessibility/autoclick/AutoclickScrollPanel.java

+29 −0
Original line number Diff line number Diff line
@@ -20,6 +20,9 @@ import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_M 


import android.annotation.IntDef;

import android.content.Context;

import android.graphics.BlendMode;

import android.graphics.BlendModeColorFilter;

import android.graphics.Color;

import android.graphics.PixelFormat;

import android.util.DisplayMetrics;

import android.view.Gravity;
@@ -233,12 +236,38 @@ public class AutoclickScrollPanel { 
                    return true;

            }



            // Update the button background color based on hover state.

            toggleSelectedButtonStyle(button, hovered);

            // Notify the controller about the hover change.

            mScrollPanelController.onHoverButtonChange(direction, hovered);

            return true;

        });

    }



    /**

     * Updates the button's style based on hover state.

     *

     * @param button  The button to update the style for.

     * @param hovered Whether the button is being hovered or not.

     */

    private void toggleSelectedButtonStyle(ImageButton button, boolean hovered) {

        if (hovered) {

            int tintColor = mContext.getColor(

                    com.android.internal.R.color.materialColorOnPrimary);



            // Apply semi-transparent (22%) tint.

            // SRC_ATOP preserves the button's texture and shadows while applying the tint.

            button.getBackground().setColorFilter(new BlendModeColorFilter(

                    Color.argb(56, Color.red(tintColor), Color.green(tintColor),

                            Color.blue(tintColor)),



                    BlendMode.SRC_ATOP));

        } else {

            // Clear the color filter to remove the effect.

            button.getBackground().clearColorFilter();

        }

    }



    /**

     * Retrieves the layout params for AutoclickScrollPanel, used when it's added to the Window

     * Manager.