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/*
* Copyright (C) 2016 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.internal.widget;
import android.annotation.ColorInt;
import android.annotation.Nullable;
import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.RemotableViewMethod;
import android.view.View;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.RemoteViews;
import android.widget.TextView;
import com.android.internal.R;
import java.util.Locale;
/**
* An expand button in a notification
*/
@RemoteViews.RemoteView
public class NotificationExpandButton extends FrameLayout {
private View mPillView;
private TextView mNumberView;
private ImageView mIconView;
private boolean mExpanded;
private int mNumber;
private int mDefaultPillColor;
private int mDefaultTextColor;
private int mHighlightPillColor;
private int mHighlightTextColor;
public NotificationExpandButton(Context context) {
this(context, null, 0, 0);
}
public NotificationExpandButton(Context context, @Nullable AttributeSet attrs) {
this(context, attrs, 0, 0);
}
public NotificationExpandButton(Context context, @Nullable AttributeSet attrs,
int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public NotificationExpandButton(Context context, @Nullable AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mPillView = findViewById(R.id.expand_button_pill);
mNumberView = findViewById(R.id.expand_button_number);
mIconView = findViewById(R.id.expand_button_icon);
}
/**
* Show the touchable area of the view for a11y.
* If the parent is the touch container, then that view's bounds are the touchable area.
*/
@Override
public void getBoundsOnScreen(Rect outRect, boolean clipToParent) {
ViewGroup parent = (ViewGroup) getParent();
if (parent != null && parent.getId() == R.id.expand_button_touch_container) {
parent.getBoundsOnScreen(outRect, clipToParent);
} else {
super.getBoundsOnScreen(outRect, clipToParent);
}
}
/**
* Determined if the given point should be touchable.
* If the parent is the touch container, then any point in that view should be touchable.
*/
@Override
public boolean pointInView(float localX, float localY, float slop) {
ViewGroup parent = (ViewGroup) getParent();
if (parent != null && parent.getId() == R.id.expand_button_touch_container) {
// If our parent is checking with us, then the point must be within its bounds.
return true;
}
return super.pointInView(localX, localY, slop);
}
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setClassName(Button.class.getName());
}
/**
* Update the button's drawable, content description, and color for the given expanded state.
*/
@RemotableViewMethod
public void setExpanded(boolean expanded) {
mExpanded = expanded;
updateExpandedState();
}
private void updateExpandedState() {
int drawableId;
int contentDescriptionId;
if (mExpanded) {
drawableId = R.drawable.ic_collapse_notification;
contentDescriptionId = R.string.expand_button_content_description_expanded;
} else {
drawableId = R.drawable.ic_expand_notification;
contentDescriptionId = R.string.expand_button_content_description_collapsed;
}
setContentDescription(mContext.getText(contentDescriptionId));
mIconView.setImageDrawable(getContext().getDrawable(drawableId));
// changing the expanded state can affect the number display
updateNumber();
}
private void updateNumber() {
if (shouldShowNumber()) {
CharSequence text = mNumber >= 100
? getResources().getString(R.string.unread_convo_overflow, 99)
: String.format(Locale.getDefault(), "%d", mNumber);
mNumberView.setText(text);
mNumberView.setVisibility(VISIBLE);
} else {
mNumberView.setVisibility(GONE);
}
// changing number can affect the color
updateColors();
}
private void updateColors() {
if (shouldShowNumber()) {
if (mHighlightPillColor != 0) {
mPillView.setBackgroundTintList(ColorStateList.valueOf(mHighlightPillColor));
}
mIconView.setColorFilter(mHighlightTextColor);
if (mHighlightTextColor != 0) {
mNumberView.setTextColor(mHighlightTextColor);
}
} else {
if (mDefaultPillColor != 0) {
mPillView.setBackgroundTintList(ColorStateList.valueOf(mDefaultPillColor));
}
mIconView.setColorFilter(mDefaultTextColor);
if (mDefaultTextColor != 0) {
mNumberView.setTextColor(mDefaultTextColor);
}
}
}
private boolean shouldShowNumber() {
return !mExpanded && mNumber > 1;
}
/**
* Set the color used for the expand chevron and the text
*/
@RemotableViewMethod
public void setDefaultTextColor(int color) {
mDefaultTextColor = color;
updateColors();
}
/**
* Sets the color used to for the expander when there is no number shown
*/
@RemotableViewMethod
public void setDefaultPillColor(@ColorInt int color) {
mDefaultPillColor = color;
updateColors();
}
/**
* Set the color used for the expand chevron and the text
*/
@RemotableViewMethod
public void setHighlightTextColor(int color) {
mHighlightTextColor = color;
updateColors();
}
/**
* Sets the color used to highlight the expander when there is a number shown
*/
@RemotableViewMethod
public void setHighlightPillColor(@ColorInt int color) {
mHighlightPillColor = color;
updateColors();
}
/**
* Sets the number shown inside the expand button.
* This only appears when the expand button is collapsed, and when greater than 1.
*/
@RemotableViewMethod
public void setNumber(int number) {
if (mNumber != number) {
mNumber = number;
updateNumber();
}
}
}
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