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/*
* Copyright (C) 2011 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.launcher2;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.content.Context;
import android.content.res.Configuration;
import android.util.AttributeSet;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.DecelerateInterpolator;
import android.widget.FrameLayout;
import com.android.launcher.R;
/*
* Ths bar will manage the transition between the QSB search bar and the delete drop
* targets so that each of the individual IconDropTargets don't have to.
*/
public class SearchDropTargetBar extends FrameLayout implements DragController.DragListener {
private static final int sTransitionInDuration = 200;
private static final int sTransitionOutDuration = 175;
private AnimatorSet mDropTargetBarFadeInAnim;
private AnimatorSet mDropTargetBarFadeOutAnim;
private ObjectAnimator mQSBSearchBarFadeInAnim;
private ObjectAnimator mQSBSearchBarFadeOutAnim;
private boolean mIsSearchBarHidden;
private View mQSBSearchBar;
private View mDropTargetBar;
private ButtonDropTarget mInfoDropTarget;
private ButtonDropTarget mDeleteDropTarget;
private int mBarHeight;
private boolean mDeferOnDragEnd = false;
public SearchDropTargetBar(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public SearchDropTargetBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void setup(Launcher launcher, DragController dragController) {
dragController.addDragListener(this);
dragController.addDragListener(mInfoDropTarget);
dragController.addDragListener(mDeleteDropTarget);
dragController.addDropTarget(mInfoDropTarget);
dragController.addDropTarget(mDeleteDropTarget);
mInfoDropTarget.setLauncher(launcher);
mDeleteDropTarget.setLauncher(launcher);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
// Get the individual components
mQSBSearchBar = findViewById(R.id.qsb_search_bar);
mDropTargetBar = findViewById(R.id.drag_target_bar);
mInfoDropTarget = (ButtonDropTarget) mDropTargetBar.findViewById(R.id.info_target_text);
mDeleteDropTarget = (ButtonDropTarget) mDropTargetBar.findViewById(R.id.delete_target_text);
mBarHeight = getResources().getDimensionPixelSize(R.dimen.qsb_bar_height);
mInfoDropTarget.setSearchDropTargetBar(this);
mDeleteDropTarget.setSearchDropTargetBar(this);
boolean enableDropDownDropTargets =
getResources().getBoolean(R.bool.config_useDropTargetDownTransition);
// Create the various fade animations
mDropTargetBar.setAlpha(0f);
ObjectAnimator fadeInAlphaAnim = ObjectAnimator.ofFloat(mDropTargetBar, "alpha", 1f);
fadeInAlphaAnim.setInterpolator(new DecelerateInterpolator());
mDropTargetBarFadeInAnim = new AnimatorSet();
AnimatorSet.Builder fadeInAnimators = mDropTargetBarFadeInAnim.play(fadeInAlphaAnim);
if (enableDropDownDropTargets) {
mDropTargetBar.setTranslationY(-mBarHeight);
fadeInAnimators.with(ObjectAnimator.ofFloat(mDropTargetBar, "translationY", 0f));
}
mDropTargetBarFadeInAnim.setDuration(sTransitionInDuration);
mDropTargetBarFadeInAnim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animation) {
mDropTargetBar.setVisibility(View.VISIBLE);
}
});
ObjectAnimator fadeOutAlphaAnim = ObjectAnimator.ofFloat(mDropTargetBar, "alpha", 0f);
fadeOutAlphaAnim.setInterpolator(new AccelerateInterpolator());
mDropTargetBarFadeOutAnim = new AnimatorSet();
AnimatorSet.Builder fadeOutAnimators = mDropTargetBarFadeOutAnim.play(fadeOutAlphaAnim);
if (enableDropDownDropTargets) {
fadeOutAnimators.with(ObjectAnimator.ofFloat(mDropTargetBar, "translationY",
-mBarHeight));
}
mDropTargetBarFadeOutAnim.setDuration(sTransitionOutDuration);
mDropTargetBarFadeOutAnim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mDropTargetBar.setVisibility(View.GONE);
mDropTargetBar.setLayerType(View.LAYER_TYPE_NONE, null);
}
});
mQSBSearchBarFadeInAnim = ObjectAnimator.ofFloat(mQSBSearchBar, "alpha", 1f);
mQSBSearchBarFadeInAnim.setDuration(sTransitionInDuration);
mQSBSearchBarFadeInAnim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animation) {
mQSBSearchBar.setVisibility(View.VISIBLE);
}
});
mQSBSearchBarFadeOutAnim = ObjectAnimator.ofFloat(mQSBSearchBar, "alpha", 0f);
mQSBSearchBarFadeOutAnim.setDuration(sTransitionOutDuration);
mQSBSearchBarFadeOutAnim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
mQSBSearchBar.setVisibility(View.GONE);
}
});
}
private void cancelAnimations() {
mDropTargetBarFadeInAnim.cancel();
mDropTargetBarFadeOutAnim.cancel();
mQSBSearchBarFadeInAnim.cancel();
mQSBSearchBarFadeOutAnim.cancel();
}
/*
* Shows and hides the search bar.
*/
public void showSearchBar(boolean animated) {
cancelAnimations();
if (animated) {
mQSBSearchBarFadeInAnim.start();
} else {
mQSBSearchBar.setVisibility(View.VISIBLE);
mQSBSearchBar.setAlpha(1f);
}
mIsSearchBarHidden = false;
}
public void hideSearchBar(boolean animated) {
cancelAnimations();
if (animated) {
mQSBSearchBarFadeOutAnim.start();
} else {
mQSBSearchBar.setVisibility(View.GONE);
mQSBSearchBar.setAlpha(0f);
}
mIsSearchBarHidden = true;
}
/*
* Gets various transition durations.
*/
public int getTransitionInDuration() {
return sTransitionInDuration;
}
public int getTransitionOutDuration() {
return sTransitionOutDuration;
}
/*
* DragController.DragListener implementation
*/
@Override
public void onDragStart(DragSource source, Object info, int dragAction) {
// Animate out the QSB search bar, and animate in the drop target bar
mDropTargetBar.setLayerType(View.LAYER_TYPE_HARDWARE, null);
mDropTargetBar.buildLayer();
mDropTargetBarFadeOutAnim.cancel();
mDropTargetBarFadeInAnim.start();
if (!mIsSearchBarHidden) {
mQSBSearchBarFadeInAnim.cancel();
mQSBSearchBarFadeOutAnim.start();
}
}
public void deferOnDragEnd() {
mDeferOnDragEnd = true;
}
@Override
public void onDragEnd() {
if (!mDeferOnDragEnd) {
// Restore the QSB search bar, and animate out the drop target bar
mDropTargetBarFadeInAnim.cancel();
mDropTargetBarFadeOutAnim.start();
if (!mIsSearchBarHidden) {
mQSBSearchBarFadeOutAnim.cancel();
mQSBSearchBarFadeInAnim.start();
}
} else {
mDeferOnDragEnd = false;
}
}
}
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