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/*
* Copyright (C) 2015 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.deskclock.timer;
import android.content.Context;
import android.content.res.ColorStateList;
import android.os.SystemClock;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.core.view.ViewCompat;
import com.android.deskclock.R;
import com.android.deskclock.ThemeUtils;
import com.android.deskclock.TimerTextController;
import com.android.deskclock.Utils.ClickAccessibilityDelegate;
import com.android.deskclock.data.Timer;
import static android.R.attr.state_activated;
import static android.R.attr.state_pressed;
import androidx.constraintlayout.widget.ConstraintLayout;
import androidx.core.view.ViewCompat;
/**
* This view is a visual representation of a {@link Timer}.
*/
public class TimerItem extends ConstraintLayout {
/** Displays the remaining time or time since expiration. */
private TextView mTimerText;
/** Formats and displays the text in the timer. */
private TimerTextController mTimerTextController;
/** Displays timer progress as a color circle that changes from white to red. */
private TimerCircleView mCircleView;
/** A button that either resets the timer or adds time to it, depending on its state. */
private Button mResetAddButton;
/** Displays the label associated with the timer. Tapping it presents an edit dialog. */
private TextView mLabelView;
/** The last state of the timer that was rendered; used to avoid expensive operations. */
private Timer.State mLastState;
public TimerItem(Context context) {
this(context, null);
}
public TimerItem(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mLabelView = (TextView) findViewById(R.id.timer_label);
mResetAddButton = (Button) findViewById(R.id.reset_add);
mCircleView = (TimerCircleView) findViewById(R.id.timer_time);
mTimerText = (TextView) findViewById(R.id.timer_time_text);
mTimerTextController = new TimerTextController(mTimerText);
final Context c = mTimerText.getContext();
final int colorAccent = ThemeUtils.resolveColor(c, R.attr.colorAccent);
final int textColorPrimary = ThemeUtils.resolveColor(c, android.R.attr.textColorPrimary);
mTimerText.setTextColor(new ColorStateList(
new int[][] { { -state_activated, -state_pressed }, {} },
new int[] { textColorPrimary, colorAccent }));
}
/**
* Updates this view to display the latest state of the {@code timer}.
*/
void update(Timer timer) {
// Update the time.
mTimerTextController.setTimeString(timer.getRemainingTime());
// Update the label if it changed.
final String label = timer.getLabel();
if (!TextUtils.equals(label, mLabelView.getText())) {
mLabelView.setText(label);
}
// Update visibility of things that may blink.
final boolean blinkOff = SystemClock.elapsedRealtime() % 1000 < 500;
if (mCircleView != null) {
final boolean hideCircle = (timer.isExpired() || timer.isMissed()) && blinkOff;
mCircleView.setVisibility(hideCircle ? INVISIBLE : VISIBLE);
if (!hideCircle) {
// Update the progress of the circle.
mCircleView.update(timer);
}
}
if (!timer.isPaused() || !blinkOff || mTimerText.isPressed()) {
mTimerText.setAlpha(1f);
} else {
mTimerText.setAlpha(0f);
}
// Update some potentially expensive areas of the user interface only on state changes.
if (timer.getState() != mLastState) {
mResetAddButton.setVisibility(View.VISIBLE);
mLastState = timer.getState();
final Context context = getContext();
switch (mLastState) {
case RESET:
mResetAddButton.setVisibility(View.GONE);
break;
case PAUSED: {
mResetAddButton.setText(R.string.timer_reset);
mResetAddButton.setContentDescription(null);
mTimerText.setClickable(true);
mTimerText.setActivated(false);
mTimerText.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
ViewCompat.setAccessibilityDelegate(mTimerText, new ClickAccessibilityDelegate(
context.getString(R.string.timer_start), true));
break;
}
case RUNNING: {
final String addTimeDesc = context.getString(R.string.timer_plus_one);
mResetAddButton.setText(R.string.timer_add_minute);
mResetAddButton.setContentDescription(addTimeDesc);
mTimerText.setClickable(true);
mTimerText.setActivated(false);
mTimerText.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
ViewCompat.setAccessibilityDelegate(mTimerText, new ClickAccessibilityDelegate(
context.getString(R.string.timer_pause)));
break;
}
case EXPIRED:
case MISSED: {
final String addTimeDesc = context.getString(R.string.timer_plus_one);
mResetAddButton.setText(R.string.timer_add_minute);
mResetAddButton.setContentDescription(addTimeDesc);
mTimerText.setClickable(false);
mTimerText.setActivated(true);
mTimerText.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_NO);
break;
}
}
}
}
}
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