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/*
* Copyright (C) 2013 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.systemui.statusbar.phone;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.GradientDrawable;
import android.graphics.drawable.GradientDrawable.Orientation;
import android.os.ServiceManager;
import android.view.MotionEvent;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import com.android.internal.statusbar.IStatusBarService;
import com.android.systemui.R;
import com.android.systemui.statusbar.policy.KeyButtonView;
public final class NavigationBarTransitions extends BarTransitions {
private static final boolean ENABLE_GRADIENT = false; // until we can smooth transition
private final NavigationBarView mView;
private final Drawable mTransparentBottom;
private final Drawable mTransparentRight;
private final int mTransparentColor;
private final IStatusBarService mBarService;
private boolean mLightsOut;
public NavigationBarTransitions(NavigationBarView view) {
super(view);
mView = view;
final Resources res = mView.getContext().getResources();
final int[] gradientColors = new int[] {
res.getColor(R.color.navigation_bar_background_transparent_start),
res.getColor(R.color.navigation_bar_background_transparent_end)
};
mTransparentBottom = new GradientDrawable(Orientation.BOTTOM_TOP, gradientColors);
mTransparentRight = new GradientDrawable(Orientation.RIGHT_LEFT, gradientColors);
mTransparentColor = res.getColor(R.color.status_bar_background_transparent);
mBarService = IStatusBarService.Stub.asInterface(
ServiceManager.getService(Context.STATUS_BAR_SERVICE));
}
public void setVertical(boolean isVertical) {
if (!ENABLE_GRADIENT) return;
mTransparent = isVertical ? mTransparentRight : mTransparentBottom;
}
@Override
protected Integer getBackgroundColor(int mode) {
if (!ENABLE_GRADIENT && mode == MODE_TRANSPARENT) return mTransparentColor;
return super.getBackgroundColor(mode);
}
@Override
protected void onTransition(int oldMode, int newMode, boolean animate) {
super.onTransition(oldMode, newMode, animate);
applyMode(newMode, animate, false /*force*/);
}
public void reapplyMode() {
applyMode(getMode(), false /*animate*/, true /*force*/);
}
private void applyMode(int mode, boolean animate, boolean force) {
// apply to key buttons
final boolean isOpaque = mode == MODE_OPAQUE || mode == MODE_LIGHTS_OUT;
final float alpha = isOpaque ? KeyButtonView.DEFAULT_QUIESCENT_ALPHA : 1f;
setKeyButtonViewQuiescentAlpha(mView.getBackButton(), alpha, animate);
setKeyButtonViewQuiescentAlpha(mView.getHomeButton(), alpha, animate);
setKeyButtonViewQuiescentAlpha(mView.getRecentsButton(), alpha, animate);
setKeyButtonViewQuiescentAlpha(mView.getMenuButton(), alpha, animate);
setKeyButtonViewQuiescentAlpha(mView.getCameraButton(), alpha, animate);
// apply to lights out
applyLightsOut(mode == MODE_LIGHTS_OUT, animate, force);
}
private void setKeyButtonViewQuiescentAlpha(View button, float alpha, boolean animate) {
if (button instanceof KeyButtonView) {
((KeyButtonView) button).setQuiescentAlpha(alpha, animate);
}
}
private void applyLightsOut(boolean lightsOut, boolean animate, boolean force) {
if (!force && lightsOut == mLightsOut) return;
mLightsOut = lightsOut;
final View navButtons = mView.getCurrentView().findViewById(R.id.nav_buttons);
final View lowLights = mView.getCurrentView().findViewById(R.id.lights_out);
// ok, everyone, stop it right there
navButtons.animate().cancel();
lowLights.animate().cancel();
final float navButtonsAlpha = lightsOut ? 0f : 1f;
final float lowLightsAlpha = lightsOut ? 1f : 0f;
if (!animate) {
navButtons.setAlpha(navButtonsAlpha);
lowLights.setAlpha(lowLightsAlpha);
lowLights.setVisibility(lightsOut ? View.VISIBLE : View.GONE);
} else {
final int duration = lightsOut ? LIGHTS_OUT_DURATION : LIGHTS_IN_DURATION;
navButtons.animate()
.alpha(navButtonsAlpha)
.setDuration(duration)
.start();
lowLights.setOnTouchListener(mLightsOutListener);
if (lowLights.getVisibility() == View.GONE) {
lowLights.setAlpha(0f);
lowLights.setVisibility(View.VISIBLE);
}
lowLights.animate()
.alpha(lowLightsAlpha)
.setDuration(duration)
.setInterpolator(new AccelerateInterpolator(2.0f))
.setListener(lightsOut ? null : new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator _a) {
lowLights.setVisibility(View.GONE);
}
})
.start();
}
}
private final View.OnTouchListener mLightsOutListener = new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent ev) {
if (ev.getAction() == MotionEvent.ACTION_DOWN) {
// even though setting the systemUI visibility below will turn these views
// on, we need them to come up faster so that they can catch this motion
// event
applyLightsOut(false, false, false);
try {
mBarService.setSystemUiVisibility(0, View.SYSTEM_UI_FLAG_LOW_PROFILE);
} catch (android.os.RemoteException ex) {
}
}
return false;
}
};
}
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