| /* |
| * Copyright (C) 2021 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.settingslib.widget; |
| |
| import android.content.Context; |
| import android.graphics.Rect; |
| import android.util.AttributeSet; |
| import android.view.TouchDelegate; |
| import android.view.View; |
| import android.widget.LinearLayout; |
| |
| import androidx.annotation.Nullable; |
| |
| /** |
| * The view providing {@link BannerMessagePreference}. |
| * |
| * <p>Callers should not instantiate this view directly but rather through adding a |
| * {@link BannerMessagePreference} to a {@code PreferenceScreen}. |
| */ |
| public class BannerMessageView extends LinearLayout { |
| private Rect mTouchTargetForDismissButton; |
| |
| public BannerMessageView(Context context) { |
| super(context); |
| } |
| |
| public BannerMessageView(Context context, |
| @Nullable AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public BannerMessageView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| } |
| |
| public BannerMessageView(Context context, AttributeSet attrs, int defStyleAttr, |
| int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| @Override |
| protected void onLayout(boolean changed, int l, int t, int r, int b) { |
| super.onLayout(changed, l, t, r, b); |
| setupIncreaseTouchTargetForDismissButton(); |
| } |
| |
| private void setupIncreaseTouchTargetForDismissButton() { |
| if (mTouchTargetForDismissButton != null) { |
| // Already set up |
| return; |
| } |
| |
| // The dismiss button is in the 'top row' RelativeLayout for positioning, but this element |
| // does not have enough space to provide large touch targets. We therefore set the top |
| // target on this view. |
| View topRow = findViewById(R.id.top_row); |
| View dismissButton = findViewById(R.id.banner_dismiss_btn); |
| if (topRow == null || dismissButton == null || dismissButton.getVisibility() != VISIBLE) { |
| return; |
| } |
| |
| int minimum = |
| getResources() |
| .getDimensionPixelSize(R.dimen.settingslib_preferred_minimum_touch_target); |
| int width = dismissButton.getWidth(); |
| int height = dismissButton.getHeight(); |
| int widthIncrease = width < minimum ? minimum - width : 0; |
| int heightIncrease = height < minimum ? minimum - height : 0; |
| |
| // Compute the hit rect of dismissButton within the local co-orindate reference of this view |
| // (rather than it's direct parent topRow). |
| Rect hitRectWithinTopRow = new Rect(); |
| dismissButton.getHitRect(hitRectWithinTopRow); |
| Rect hitRectOfTopRowWithinThis = new Rect(); |
| topRow.getHitRect(hitRectOfTopRowWithinThis); |
| mTouchTargetForDismissButton = new Rect(); |
| mTouchTargetForDismissButton.left = |
| hitRectOfTopRowWithinThis.left + hitRectWithinTopRow.left; |
| mTouchTargetForDismissButton.right = |
| hitRectOfTopRowWithinThis.left + hitRectWithinTopRow.right; |
| mTouchTargetForDismissButton.top = |
| hitRectOfTopRowWithinThis.top + hitRectWithinTopRow.top; |
| mTouchTargetForDismissButton.bottom = |
| hitRectOfTopRowWithinThis.top + hitRectWithinTopRow.bottom; |
| |
| // Adjust the touch target rect to apply the necessary increase in width and height. |
| mTouchTargetForDismissButton.left -= |
| widthIncrease % 2 == 1 ? (widthIncrease / 2) + 1 : widthIncrease / 2; |
| mTouchTargetForDismissButton.top -= |
| heightIncrease % 2 == 1 ? (heightIncrease / 2) + 1 : heightIncrease / 2; |
| mTouchTargetForDismissButton.right += widthIncrease / 2; |
| mTouchTargetForDismissButton.bottom += heightIncrease / 2; |
| |
| setTouchDelegate(new TouchDelegate(mTouchTargetForDismissButton, dismissButton)); |
| } |
| |
| } |