/*
Copyright © 2013-2014, Silent Circle, LLC.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Any redistribution, use, or modification is done solely for personal
benefit and not for any commercial purpose or for monetary gain
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name Silent Circle nor the names of its contributors may
be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL SILENT CIRCLE, LLC BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (C) 2012 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.silentcircle.contacts.editor;
import android.animation.Animator;
import android.animation.Animator.AnimatorListener;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.annotation.TargetApi;
import android.os.Build;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewParent;
import android.widget.LinearLayout;
import com.silentcircle.contacts.utils.SchedulingUtils;
import com.google.common.collect.Lists;
import java.util.List;
/**
* Configures animations for typical use-cases
*/
public class EditorAnimator {
private static EditorAnimator sInstance;
static {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH)
sInstance = new EditorAnimator();
}
public static EditorAnimator getInstance() {
return sInstance;
}
/** Private constructor for singleton */
private EditorAnimator() { }
private AnimatorRunner mRunner = new AnimatorRunner();
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public void removeEditorView(final View victim) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH)
return;
mRunner.endOldAnimation();
final int offset = victim.getHeight();
final List<View> viewsToMove = getViewsBelowOf(victim);
final List<Animator> animators = Lists.newArrayList();
// Fade out
final ObjectAnimator fadeOutAnimator = ObjectAnimator.ofFloat(victim, View.ALPHA, 1.0f, 0.0f);
fadeOutAnimator.setDuration(200);
animators.add(fadeOutAnimator);
// Translations
translateViews(animators, viewsToMove, 0.0f, -offset, 100, 200);
mRunner.run(animators, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
// Clean up: Remove all the translations
for (int i = 0; i < viewsToMove.size(); i++) {
final View view = viewsToMove.get(i);
view.setTranslationY(0.0f);
}
// Remove our target view (if parent is null, we were run several times by quick
// fingers. Just ignore)
final ViewGroup victimParent = (ViewGroup) victim.getParent();
if (victimParent != null) {
victimParent.removeView(victim);
}
}
});
}
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public void expandOrganization(final View addOrganizationButton, final ViewGroup organizationSectionViewContainer) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH)
return;
mRunner.endOldAnimation();
// Make the new controls visible and do one layout pass (so that we can measure)
organizationSectionViewContainer.setVisibility(View.VISIBLE);
organizationSectionViewContainer.setAlpha(0.0f);
organizationSectionViewContainer.requestFocus();
SchedulingUtils.doAfterLayout(addOrganizationButton, new Runnable() {
@Override
public void run() {
// How many pixels extra do we need?
final int offset = organizationSectionViewContainer.getHeight() -
addOrganizationButton.getHeight();
final List<Animator> animators = Lists.newArrayList();
// Fade out
final ObjectAnimator fadeOutAnimator = ObjectAnimator.ofFloat(
addOrganizationButton, View.ALPHA, 1.0f, 0.0f);
fadeOutAnimator.setDuration(200);
animators.add(fadeOutAnimator);
// Translations
final List<View> viewsToMove = getViewsBelowOf(organizationSectionViewContainer);
translateViews(animators, viewsToMove, -offset, 0.0f, 0, 200);
// Fade in
final ObjectAnimator fadeInAnimator = ObjectAnimator.ofFloat(
organizationSectionViewContainer, View.ALPHA, 0.0f, 1.0f);
fadeInAnimator.setDuration(200);
fadeInAnimator.setStartDelay(200);
animators.add(fadeInAnimator);
mRunner.run(animators);
}
});
}
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public void showAddFieldFooter(final View view) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH)
return;
mRunner.endOldAnimation();
if (view.getVisibility() == View.VISIBLE) return;
// Make the new controls visible and do one layout pass (so that we can measure)
view.setVisibility(View.VISIBLE);
view.setAlpha(0.0f);
SchedulingUtils.doAfterLayout(view, new Runnable() {
@Override
public void run() {
// How many pixels extra do we need?
final int offset = view.getHeight();
final List<Animator> animators = Lists.newArrayList();
// Translations
final List<View> viewsToMove = getViewsBelowOf(view);
translateViews(animators, viewsToMove, -offset, 0.0f, 0, 200);
// Fade in
final ObjectAnimator fadeInAnimator = ObjectAnimator.ofFloat(
view, View.ALPHA, 0.0f, 1.0f);
fadeInAnimator.setDuration(200);
fadeInAnimator.setStartDelay(200);
animators.add(fadeInAnimator);
mRunner.run(animators);
}
});
}
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public void hideAddFieldFooter(final View victim) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.ICE_CREAM_SANDWICH)
return;
mRunner.endOldAnimation();
if (victim.getVisibility() == View.GONE) return;
final int offset = victim.getHeight();
final List<View> viewsToMove = getViewsBelowOf(victim);
final List<Animator> animators = Lists.newArrayList();
// Fade out
final ObjectAnimator fadeOutAnimator =
ObjectAnimator.ofFloat(victim, View.ALPHA, 1.0f, 0.0f);
fadeOutAnimator.setDuration(200);
animators.add(fadeOutAnimator);
// Translations
translateViews(animators, viewsToMove, 0.0f, -offset, 100, 200);
// Combine
mRunner.run(animators, new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
// Clean up: Remove all the translations
for (int i = 0; i < viewsToMove.size(); i++) {
final View view = viewsToMove.get(i);
view.setTranslationY(0.0f);
}
// Restore alpha (for next time), but hide the view for good now
victim.setAlpha(1.0f);
victim.setVisibility(View.GONE);
}
});
}
/**
* Creates a translation-animation for the given views
*/
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private static void translateViews(List<Animator> animators, List<View> views, float fromY, float toY,
int startDelay, int duration) {
for (int i = 0; i < views.size(); i++) {
final View child = views.get(i);
final ObjectAnimator translateAnimator =
ObjectAnimator.ofFloat(child, View.TRANSLATION_Y, fromY, toY);
translateAnimator.setStartDelay(startDelay);
translateAnimator.setDuration(duration);
animators.add(translateAnimator);
}
}
/**
* Traverses up the view hierarchy and returns all views below this item. Stops
* once a parent is not a vertical LinearLayout
*
* @return List of views that are below the given view. Empty list if parent of view is null.
*/
private static List<View> getViewsBelowOf(View view) {
final ViewGroup victimParent = (ViewGroup) view.getParent();
final List<View> result = Lists.newArrayList();
if (victimParent != null) {
final int index = victimParent.indexOfChild(view);
getViewsBelowOfRecursive(result, victimParent, index + 1);
}
return result;
}
private static void getViewsBelowOfRecursive(List<View> result, ViewGroup container,
int index) {
for (int i = index; i < container.getChildCount(); i++) {
result.add(container.getChildAt(i));
}
final ViewParent parent = container.getParent();
if (parent instanceof LinearLayout) {
final LinearLayout parentLayout = (LinearLayout) parent;
if (parentLayout.getOrientation() == LinearLayout.VERTICAL) {
int containerIndex = parentLayout.indexOfChild(container);
getViewsBelowOfRecursive(result, parentLayout, containerIndex+1);
}
}
}
/**
* Keeps a reference to the last animator, so that we can end that early if the user
* quickly pushes buttons. Removes the reference once the animation has finished
*/
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
/* package */ static class AnimatorRunner extends AnimatorListenerAdapter {
private Animator mLastAnimator;
@Override
public void onAnimationEnd(Animator animation) {
mLastAnimator = null;
}
public void run(List<Animator> animators) {
run(animators, null);
}
public void run(List<Animator> animators, AnimatorListener listener) {
final AnimatorSet set = new AnimatorSet();
set.playTogether(animators);
if (listener != null) set.addListener(listener);
set.addListener(this);
mLastAnimator = set;
set.start();
}
public void endOldAnimation() {
if (mLastAnimator != null) {
mLastAnimator.end();
}
}
}
}