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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.ObjectAnimator;
import android.content.Context;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
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 ObjectAnimator mDropTargetBarAnim;
private ObjectAnimator mQSBSearchBarAnim;
private static final AccelerateInterpolator sAccelerateInterpolator =
new AccelerateInterpolator();
private boolean mIsSearchBarHidden;
private View mQSBSearchBar;
private View mDropTargetBar;
private ButtonDropTarget mInfoDropTarget;
private ButtonDropTarget mDeleteDropTarget;
private int mBarHeight;
private boolean mDeferOnDragEnd = false;
private Drawable mPreviousBackground;
private boolean mEnableDropDownDropTargets;
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);
dragController.setFlingToDeleteDropTarget(mDeleteDropTarget);
mInfoDropTarget.setLauncher(launcher);
mDeleteDropTarget.setLauncher(launcher);
}
private void prepareStartAnimation(View v) {
// Enable the hw layers before the animation starts (will be disabled in the onAnimationEnd
// callback below)
v.setLayerType(View.LAYER_TYPE_HARDWARE, null);
v.buildLayer();
}
private void setupAnimation(ObjectAnimator anim, final View v) {
anim.setInterpolator(sAccelerateInterpolator);
anim.setDuration(sTransitionInDuration);
anim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
v.setLayerType(View.LAYER_TYPE_NONE, null);
}
});
}
@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);
mEnableDropDownDropTargets =
getResources().getBoolean(R.bool.config_useDropTargetDownTransition);
// Create the various fade animations
if (mEnableDropDownDropTargets) {
mDropTargetBar.setTranslationY(-mBarHeight);
mDropTargetBarAnim = LauncherAnimUtils.ofFloat(mDropTargetBar, "translationY",
-mBarHeight, 0f);
mQSBSearchBarAnim = LauncherAnimUtils.ofFloat(mQSBSearchBar, "translationY", 0,
-mBarHeight);
} else {
mDropTargetBar.setAlpha(0f);
mDropTargetBarAnim = LauncherAnimUtils.ofFloat(mDropTargetBar, "alpha", 0f, 1f);
mQSBSearchBarAnim = LauncherAnimUtils.ofFloat(mQSBSearchBar, "alpha", 1f, 0f);
}
setupAnimation(mDropTargetBarAnim, mDropTargetBar);
setupAnimation(mQSBSearchBarAnim, mQSBSearchBar);
}
public void finishAnimations() {
prepareStartAnimation(mDropTargetBar);
mDropTargetBarAnim.reverse();
prepareStartAnimation(mQSBSearchBar);
mQSBSearchBarAnim.reverse();
}
/*
* Shows and hides the search bar.
*/
public void showSearchBar(boolean animated) {
if (!mIsSearchBarHidden) return;
if (animated) {
prepareStartAnimation(mQSBSearchBar);
mQSBSearchBarAnim.reverse();
} else {
mQSBSearchBarAnim.cancel();
if (mEnableDropDownDropTargets) {
mQSBSearchBar.setTranslationY(0);
} else {
mQSBSearchBar.setAlpha(1f);
}
}
mIsSearchBarHidden = false;
}
public void hideSearchBar(boolean animated) {
if (mIsSearchBarHidden) return;
if (animated) {
prepareStartAnimation(mQSBSearchBar);
mQSBSearchBarAnim.start();
} else {
mQSBSearchBarAnim.cancel();
if (mEnableDropDownDropTargets) {
mQSBSearchBar.setTranslationY(-mBarHeight);
} else {
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
prepareStartAnimation(mDropTargetBar);
mDropTargetBarAnim.start();
if (!mIsSearchBarHidden) {
prepareStartAnimation(mQSBSearchBar);
mQSBSearchBarAnim.start();
}
}
public void deferOnDragEnd() {
mDeferOnDragEnd = true;
}
@Override
public void onDragEnd() {
if (!mDeferOnDragEnd) {
// Restore the QSB search bar, and animate out the drop target bar
prepareStartAnimation(mDropTargetBar);
mDropTargetBarAnim.reverse();
if (!mIsSearchBarHidden) {
prepareStartAnimation(mQSBSearchBar);
mQSBSearchBarAnim.reverse();
}
} else {
mDeferOnDragEnd = false;
}
}
public void onSearchPackagesChanged(boolean searchVisible, boolean voiceVisible) {
if (mQSBSearchBar != null) {
Drawable bg = mQSBSearchBar.getBackground();
if (bg != null && (!searchVisible && !voiceVisible)) {
// Save the background and disable it
mPreviousBackground = bg;
mQSBSearchBar.setBackgroundResource(0);
} else if (mPreviousBackground != null && (searchVisible || voiceVisible)) {
// Restore the background
mQSBSearchBar.setBackground(mPreviousBackground);
}
}
}
public Rect getSearchBarBounds() {
if (mQSBSearchBar != null) {
final int[] pos = new int[2];
mQSBSearchBar.getLocationOnScreen(pos);
final Rect rect = new Rect();
rect.left = pos[0];
rect.top = pos[1];
rect.right = pos[0] + mQSBSearchBar.getWidth();
rect.bottom = pos[1] + mQSBSearchBar.getHeight();
return rect;
} else {
return null;
}
}
}