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/*
* Copyright (C) 2016 Cyanogen, Inc.
* Copyright (C) 2016 The CyanogenMod 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 org.cyanogenmod.theme.chooser;
import android.animation.Animator;
import android.animation.AnimatorSet;
import android.animation.IntEvaluator;
import android.animation.ObjectAnimator;
import android.animation.ValueAnimator;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.TransitionDrawable;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewOverlay;
import android.widget.LinearLayout;
import android.widget.TextView;
public class ComponentCardView extends LinearLayout {
public static final int CARD_FADE_DURATION = 300;
private static final float SEMI_OPAQUE_ALPHA = 0.4f;
protected TextView mLabel;
protected View mEmptyView;
protected View mContentView;
// Expanded Padding
int mExpandPadLeft;
int mExpandPadTop;
int mExpandPadRight;
int mExpandPadBottom;
// The background drawable is returning an alpha of 0 regardless of what we set it to
// so this will help us keep track of what the drawable's alpha is at.
private int mBackgroundAlpha = 255;
public ComponentCardView(Context context) {
this(context, null);
}
public ComponentCardView(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public ComponentCardView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setEnabled(false);
}
@Override
protected void onFinishInflate() {
mLabel = (TextView) findViewById(R.id.label);
Resources r = getContext().getResources();
mExpandPadLeft =
(int) r.getDimension(R.dimen.card_padding_left_right) + getPaddingLeft();
mExpandPadTop =
(int) r.getDimension(R.dimen.card_padding_top) + getPaddingTop();
mExpandPadRight =
(int) r.getDimension(R.dimen.card_padding_left_right) + getPaddingRight();
mExpandPadBottom =
(int) r.getDimension(R.dimen.card_padding_bottom) + getPaddingBottom();
mEmptyView = findViewById(R.id.empty);
mContentView = findViewById(R.id.content);
}
public void expand(boolean showLabel) {
setEnabled(true);
TransitionDrawable bg = null;
if (getBackground() instanceof TransitionDrawable) {
bg = (TransitionDrawable) getBackground();
}
if (bg != null) {
Rect paddingRect = new Rect();
bg.getPadding(paddingRect);
}
setPadding(mExpandPadLeft, 0, mExpandPadRight, mExpandPadBottom);
if (mLabel != null) {
mLabel.setAlpha(showLabel ? 1f : 0f);
mLabel.setVisibility(View.VISIBLE);
}
}
public void animateExpand() {
if (getBackground() instanceof TransitionDrawable) {
TransitionDrawable background = (TransitionDrawable) getBackground();
if (mLabel != null) {
mLabel.setVisibility(View.VISIBLE);
mLabel.setAlpha(0f);
mLabel.animate().alpha(1f).setDuration(CARD_FADE_DURATION).start();
}
background.startTransition(CARD_FADE_DURATION);
}
}
public void collapse() {
setEnabled(false);
if (mLabel != null) {
mLabel.setVisibility(View.GONE);
}
setPadding(0, 0, 0, 0);
}
public void animateFadeOut() {
if (mLabel != null) {
mLabel.animate().alpha(0f).setDuration(CARD_FADE_DURATION);
}
if (getBackground() instanceof TransitionDrawable) {
TransitionDrawable background = (TransitionDrawable) getBackground();
background.reverseTransition(CARD_FADE_DURATION);
}
}
/**
* Animates the card background and the title to 20% opacity.
*/
public void animateCardFadeOut() {
this.animate().alpha(SEMI_OPAQUE_ALPHA).setDuration(CARD_FADE_DURATION);
}
/**
* Animates the card background and the title back to full opacity.
*/
public void animateCardFadeIn() {
this.animate().alpha(1f).setDuration(CARD_FADE_DURATION);
}
/**
* Animates a change in the content of the card
* @param v View in card to animate
* @param overlay Drawable to animate as a ViewOverlay
* @param duration Duration of animation
*/
public void animateContentChange(View v, final Drawable overlay, long duration) {
final ViewOverlay viewOverlay = this.getOverlay();
viewOverlay.add(overlay);
final int x = getRelativeLeft(v);
final int y = getRelativeTop(v);
final int width = v.getWidth();
final int height = v.getHeight();
overlay.setBounds(x, y, x + v.getWidth(), y + v.getHeight());
final ValueAnimator overlayAnimator = ValueAnimator.ofFloat(1f, 0f);
overlayAnimator.setDuration(duration);
overlayAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animation) {
float value = (Float) animation.getAnimatedValue();
overlay.setAlpha((int) (255 * value));
int newWidth = (int) (value * width);
int newHeight = (int) (value * height);
int dw = (width - newWidth) / 2;
int dh = (height - newHeight) / 2;
overlay.setBounds(x + dw, y + dh, x + dw + newWidth, y + dh + newHeight);
}
});
overlayAnimator.addListener(new Animator.AnimatorListener() {
@Override
public void onAnimationStart(Animator animation) {}
@Override
public void onAnimationEnd(Animator animation) {
// Clear out the ViewOverlay now that we are done animating
viewOverlay.clear();
}
@Override
public void onAnimationCancel(Animator animation) {}
@Override
public void onAnimationRepeat(Animator animation) {}
});
AnimatorSet set = new AnimatorSet();
set.play(ObjectAnimator.ofFloat(v, "alpha", 0f, 1f))
.with(ObjectAnimator.ofFloat(v, "scaleX", 0f, 1f))
.with(ObjectAnimator.ofFloat(v, "scaleY", 0f, 1f));
set.setDuration(duration);
set.start();
overlayAnimator.start();
}
public void setEmptyViewEnabled(boolean enabled) {
if (mEmptyView != null) {
mEmptyView.setVisibility(enabled ? View.VISIBLE : View.GONE);
}
if (mContentView != null) {
mContentView.setVisibility(enabled ? View.INVISIBLE : View.VISIBLE);
}
}
public boolean isShowingEmptyView() {
return mEmptyView != null && mEmptyView.getVisibility() == View.VISIBLE;
}
private int getRelativeTop(View v) {
if (v.getParent() == this) {
return v.getTop();
} else {
return v.getTop() + ((View) v.getParent()).getTop();
}
}
private int getRelativeLeft(View v) {
if (v.getParent() == this) {
return v.getLeft();
} else {
return v.getLeft() + ((View) v.getParent()).getLeft();
}
}
}
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