packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2008 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.AnimatorSet;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.content.res.Resources;
 import android.os.ServiceManager;
 import android.util.AttributeSet;
 import android.util.Slog;
 import android.view.animation.AccelerateInterpolator;
 import android.view.Display;
 import android.view.KeyEvent;
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.Surface;
 import android.view.WindowManager;
 import android.widget.LinearLayout;
 import android.content.res.Configuration;

 import com.android.internal.statusbar.IStatusBarService;

 import com.android.systemui.R;

 public class NavigationBarView extends LinearLayout {
     final static boolean DEBUG = false;
     final static String TAG = "PhoneStatusBar/NavigationBarView";

     final static boolean DEBUG_DEADZONE = false;

     final static boolean NAVBAR_ALWAYS_AT_RIGHT = true;

     final static boolean ANIMATE_HIDE_TRANSITION = false; // turned off because it introduces unsightly delay when videos goes to full screen

     protected IStatusBarService mBarService;
     final Display mDisplay;
     View mCurrentView = null;
     View[] mRotatedViews = new View[4];
     AnimatorSet mLastAnimator = null;

     int mBarSize;
     boolean mVertical;

     boolean mHidden, mLowProfile;
     int mDisabledFlags = 0;

     public View getRecentsButton() {
         return mCurrentView.findViewById(R.id.recent_apps);
     }

     public View getMenuButton() {
         return mCurrentView.findViewById(R.id.menu);
     }

     public View getBackButton() {
         return mCurrentView.findViewById(R.id.back);
     }

     public View getHomeButton() {
         return mCurrentView.findViewById(R.id.home);
     }

     public NavigationBarView(Context context, AttributeSet attrs) {
         super(context, attrs);

         mHidden = false;

         mDisplay = ((WindowManager)context.getSystemService(
                 Context.WINDOW_SERVICE)).getDefaultDisplay();
         mBarService = IStatusBarService.Stub.asInterface(
                 ServiceManager.getService(Context.STATUS_BAR_SERVICE));

         final Resources res = mContext.getResources();
         mBarSize = res.getDimensionPixelSize(R.dimen.navigation_bar_size);
         mVertical = false;
     }

     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
                 setLowProfile(false, false, false);

                 try {
                     mBarService.setSystemUiVisibility(0);
                 } catch (android.os.RemoteException ex) {
                 }
             }
             return false;
         }
     };

     public void setDisabledFlags(int disabledFlags) {
         setDisabledFlags(disabledFlags, false);
     }

     public void setDisabledFlags(int disabledFlags, boolean force) {
         if (!force && mDisabledFlags == disabledFlags) return;

         mDisabledFlags = disabledFlags;

         final boolean disableNavigation = ((disabledFlags & View.STATUS_BAR_DISABLE_NAVIGATION) != 0);
         final boolean disableBack = ((disabledFlags & View.STATUS_BAR_DISABLE_BACK) != 0);

         getBackButton()   .setVisibility(disableBack       ? View.INVISIBLE : View.VISIBLE);
         getHomeButton()   .setVisibility(disableNavigation ? View.INVISIBLE : View.VISIBLE);
         getRecentsButton().setVisibility(disableNavigation ? View.INVISIBLE : View.VISIBLE);
         getMenuButton()   .setVisibility(disableNavigation ? View.INVISIBLE : View.VISIBLE);
     }

     public void setLowProfile(final boolean lightsOut) {
         setLowProfile(lightsOut, true, false);
     }

     public void setLowProfile(final boolean lightsOut, final boolean animate, final boolean force) {
         if (!force && lightsOut == mLowProfile) return;

         mLowProfile = lightsOut;

         if (DEBUG) Slog.d(TAG, "setting lights " + (lightsOut?"out":"on"));

         final View navButtons = mCurrentView.findViewById(R.id.nav_buttons);
         final View lowLights = mCurrentView.findViewById(R.id.lights_out);

         // ok, everyone, stop it right there
         navButtons.animate().cancel();
         lowLights.animate().cancel();

         if (!animate) {
             navButtons.setAlpha(lightsOut ? 0f : 1f);

             lowLights.setAlpha(lightsOut ? 1f : 0f);
             lowLights.setVisibility(lightsOut ? View.VISIBLE : View.GONE);
         } else {
             navButtons.animate()
                 .alpha(lightsOut ? 0f : 1f)
                 .setDuration(lightsOut ? 600 : 200)
                 .start();

             lowLights.setOnTouchListener(mLightsOutListener);
             if (lowLights.getVisibility() == View.GONE) {
                 lowLights.setAlpha(0f);
                 lowLights.setVisibility(View.VISIBLE);
             }
             lowLights.animate()
                 .alpha(lightsOut ? 1f : 0f)
                 .setStartDelay(lightsOut ? 500 : 0)
                 .setDuration(lightsOut ? 1000 : 300)
                 .setInterpolator(new AccelerateInterpolator(2.0f))
                 .setListener(lightsOut ? null : new AnimatorListenerAdapter() {
                     @Override
                     public void onAnimationEnd(Animator _a) {
                         lowLights.setVisibility(View.GONE);
                     }
                 })
                 .start();
         }
     }

     public void setHidden(final boolean hide) {
         if (hide == mHidden) return;

         mHidden = hide;
         Slog.d(TAG,
             (hide ? "HIDING" : "SHOWING") + " navigation bar");

         // bring up the lights no matter what
         setLowProfile(false);

         if (!ANIMATE_HIDE_TRANSITION) {
             setVisibility(hide ? View.GONE : View.VISIBLE);
             return;
         }

         float oldAlpha = mCurrentView.getAlpha();
         if (DEBUG) {
             Slog.d(TAG, "animating alpha: " + oldAlpha + " -> "
                 + (!hide ? 1f : 0f));
         }

         if (mLastAnimator != null && mLastAnimator.isRunning()) mLastAnimator.cancel();

         if (!hide) {
             setVisibility(View.VISIBLE);
         }

         // play us off, animatorset
         mLastAnimator = new AnimatorSet();
         mLastAnimator.playTogether(
                 ObjectAnimator.ofFloat(mCurrentView, "alpha", hide ? 0f : 1f),
                 ObjectAnimator.ofFloat(mCurrentView,
                                        mVertical ? "translationX" : "translationY",
                                        hide ? mBarSize : 0)
         );
         mLastAnimator.setDuration(!hide ? 250 : 1000);
         mLastAnimator.addListener(new AnimatorListenerAdapter() {
             @Override
             public void onAnimationEnd(Animator _a) {
                 mLastAnimator = null;
                 if (hide) {
                     setVisibility(View.GONE);
                 }
             }
         });
         mLastAnimator.start();
     }

     public void onFinishInflate() {
         mRotatedViews[Surface.ROTATION_0] =
         mRotatedViews[Surface.ROTATION_180] = findViewById(R.id.rot0);

         mRotatedViews[Surface.ROTATION_90] = findViewById(R.id.rot90);

         mRotatedViews[Surface.ROTATION_270] = NAVBAR_ALWAYS_AT_RIGHT
                                                 ? findViewById(R.id.rot90)
                                                 : findViewById(R.id.rot270);

         for (View v : mRotatedViews) {
             // this helps avoid drawing artifacts with glowing navigation keys
             ViewGroup group = (ViewGroup) v.findViewById(R.id.nav_buttons);
             group.setMotionEventSplittingEnabled(false);
         }
         mCurrentView = mRotatedViews[Surface.ROTATION_0];
     }

     public void reorient() {
         final int rot = mDisplay.getRotation();
         for (int i=0; i<4; i++) {
             mRotatedViews[i].setVisibility(View.GONE);
         }
         mCurrentView = mRotatedViews[rot];
         mCurrentView.setVisibility(View.VISIBLE);
         mVertical = (rot == Surface.ROTATION_90 || rot == Surface.ROTATION_270);

         // force the low profile & disabled states into compliance
         setLowProfile(mLowProfile, false, true /* force */);
         setDisabledFlags(mDisabledFlags, true /* force */);

         if (DEBUG_DEADZONE) {
             mCurrentView.findViewById(R.id.deadzone).setBackgroundColor(0x808080FF);
         }

         if (DEBUG) {
             Slog.d(TAG, "reorient(): rot=" + mDisplay.getRotation());
         }
     }
 }
	/*
	* Copyright (C) 2008 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.AnimatorSet;
	import android.animation.AnimatorListenerAdapter;
	import android.animation.ObjectAnimator;
	import android.content.Context;
	import android.content.res.Resources;
	import android.os.ServiceManager;
	import android.util.AttributeSet;
	import android.util.Slog;
	import android.view.animation.AccelerateInterpolator;
	import android.view.Display;
	import android.view.KeyEvent;
	import android.view.MotionEvent;
	import android.view.View;
	import android.view.ViewGroup;
	import android.view.Surface;
	import android.view.WindowManager;
	import android.widget.LinearLayout;
	import android.content.res.Configuration;

	import com.android.internal.statusbar.IStatusBarService;

	import com.android.systemui.R;

	public class NavigationBarView extends LinearLayout {
	final static boolean DEBUG = false;
	final static String TAG = "PhoneStatusBar/NavigationBarView";

	final static boolean DEBUG_DEADZONE = false;

	final static boolean NAVBAR_ALWAYS_AT_RIGHT = true;

	final static boolean ANIMATE_HIDE_TRANSITION = false; // turned off because it introduces unsightly delay when videos goes to full screen

	protected IStatusBarService mBarService;
	final Display mDisplay;
	View mCurrentView = null;
	View[] mRotatedViews = new View[4];
	AnimatorSet mLastAnimator = null;

	int mBarSize;
	boolean mVertical;

	boolean mHidden, mLowProfile;
	int mDisabledFlags = 0;

	public View getRecentsButton() {
	return mCurrentView.findViewById(R.id.recent_apps);
	}

	public View getMenuButton() {
	return mCurrentView.findViewById(R.id.menu);
	}

	public View getBackButton() {
	return mCurrentView.findViewById(R.id.back);
	}

	public View getHomeButton() {
	return mCurrentView.findViewById(R.id.home);
	}

	public NavigationBarView(Context context, AttributeSet attrs) {
	super(context, attrs);

	mHidden = false;

	mDisplay = ((WindowManager)context.getSystemService(
	Context.WINDOW_SERVICE)).getDefaultDisplay();
	mBarService = IStatusBarService.Stub.asInterface(
	ServiceManager.getService(Context.STATUS_BAR_SERVICE));

	final Resources res = mContext.getResources();
	mBarSize = res.getDimensionPixelSize(R.dimen.navigation_bar_size);
	mVertical = false;
	}

	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
	setLowProfile(false, false, false);

	try {
	mBarService.setSystemUiVisibility(0);
	} catch (android.os.RemoteException ex) {
	}
	}
	return false;
	}
	};

	public void setDisabledFlags(int disabledFlags) {
	setDisabledFlags(disabledFlags, false);
	}

	public void setDisabledFlags(int disabledFlags, boolean force) {
	if (!force && mDisabledFlags == disabledFlags) return;

	mDisabledFlags = disabledFlags;

	final boolean disableNavigation = ((disabledFlags & View.STATUS_BAR_DISABLE_NAVIGATION) != 0);
	final boolean disableBack = ((disabledFlags & View.STATUS_BAR_DISABLE_BACK) != 0);

	getBackButton() .setVisibility(disableBack ? View.INVISIBLE : View.VISIBLE);
	getHomeButton() .setVisibility(disableNavigation ? View.INVISIBLE : View.VISIBLE);
	getRecentsButton().setVisibility(disableNavigation ? View.INVISIBLE : View.VISIBLE);
	getMenuButton() .setVisibility(disableNavigation ? View.INVISIBLE : View.VISIBLE);
	}

	public void setLowProfile(final boolean lightsOut) {
	setLowProfile(lightsOut, true, false);
	}

	public void setLowProfile(final boolean lightsOut, final boolean animate, final boolean force) {
	if (!force && lightsOut == mLowProfile) return;

	mLowProfile = lightsOut;

	if (DEBUG) Slog.d(TAG, "setting lights " + (lightsOut?"out":"on"));

	final View navButtons = mCurrentView.findViewById(R.id.nav_buttons);
	final View lowLights = mCurrentView.findViewById(R.id.lights_out);

	// ok, everyone, stop it right there
	navButtons.animate().cancel();
	lowLights.animate().cancel();

	if (!animate) {
	navButtons.setAlpha(lightsOut ? 0f : 1f);

	lowLights.setAlpha(lightsOut ? 1f : 0f);
	lowLights.setVisibility(lightsOut ? View.VISIBLE : View.GONE);
	} else {
	navButtons.animate()
	.alpha(lightsOut ? 0f : 1f)
	.setDuration(lightsOut ? 600 : 200)
	.start();

	lowLights.setOnTouchListener(mLightsOutListener);
	if (lowLights.getVisibility() == View.GONE) {
	lowLights.setAlpha(0f);
	lowLights.setVisibility(View.VISIBLE);
	}
	lowLights.animate()
	.alpha(lightsOut ? 1f : 0f)
	.setStartDelay(lightsOut ? 500 : 0)
	.setDuration(lightsOut ? 1000 : 300)
	.setInterpolator(new AccelerateInterpolator(2.0f))
	.setListener(lightsOut ? null : new AnimatorListenerAdapter() {
	@Override
	public void onAnimationEnd(Animator _a) {
	lowLights.setVisibility(View.GONE);
	}
	})
	.start();
	}
	}

	public void setHidden(final boolean hide) {
	if (hide == mHidden) return;

	mHidden = hide;
	Slog.d(TAG,
	(hide ? "HIDING" : "SHOWING") + " navigation bar");

	// bring up the lights no matter what
	setLowProfile(false);

	if (!ANIMATE_HIDE_TRANSITION) {
	setVisibility(hide ? View.GONE : View.VISIBLE);
	return;
	}

	float oldAlpha = mCurrentView.getAlpha();
	if (DEBUG) {
	Slog.d(TAG, "animating alpha: " + oldAlpha + " -> "
	+ (!hide ? 1f : 0f));
	}

	if (mLastAnimator != null && mLastAnimator.isRunning()) mLastAnimator.cancel();

	if (!hide) {
	setVisibility(View.VISIBLE);
	}

	// play us off, animatorset
	mLastAnimator = new AnimatorSet();
	mLastAnimator.playTogether(
	ObjectAnimator.ofFloat(mCurrentView, "alpha", hide ? 0f : 1f),
	ObjectAnimator.ofFloat(mCurrentView,
	mVertical ? "translationX" : "translationY",
	hide ? mBarSize : 0)
	);
	mLastAnimator.setDuration(!hide ? 250 : 1000);
	mLastAnimator.addListener(new AnimatorListenerAdapter() {
	@Override
	public void onAnimationEnd(Animator _a) {
	mLastAnimator = null;
	if (hide) {
	setVisibility(View.GONE);
	}
	}
	});
	mLastAnimator.start();
	}

	public void onFinishInflate() {
	mRotatedViews[Surface.ROTATION_0] =
	mRotatedViews[Surface.ROTATION_180] = findViewById(R.id.rot0);

	mRotatedViews[Surface.ROTATION_90] = findViewById(R.id.rot90);

	mRotatedViews[Surface.ROTATION_270] = NAVBAR_ALWAYS_AT_RIGHT
	? findViewById(R.id.rot90)
	: findViewById(R.id.rot270);

	for (View v : mRotatedViews) {
	// this helps avoid drawing artifacts with glowing navigation keys
	ViewGroup group = (ViewGroup) v.findViewById(R.id.nav_buttons);
	group.setMotionEventSplittingEnabled(false);
	}
	mCurrentView = mRotatedViews[Surface.ROTATION_0];
	}

	public void reorient() {
	final int rot = mDisplay.getRotation();
	for (int i=0; i<4; i++) {
	mRotatedViews[i].setVisibility(View.GONE);
	}
	mCurrentView = mRotatedViews[rot];
	mCurrentView.setVisibility(View.VISIBLE);
	mVertical = (rot == Surface.ROTATION_90 \|\| rot == Surface.ROTATION_270);

	// force the low profile & disabled states into compliance
	setLowProfile(mLowProfile, false, true /* force */);
	setDisabledFlags(mDisabledFlags, true /* force */);

	if (DEBUG_DEADZONE) {
	mCurrentView.findViewById(R.id.deadzone).setBackgroundColor(0x808080FF);
	}

	if (DEBUG) {
	Slog.d(TAG, "reorient(): rot=" + mDisplay.getRotation());
	}
	}
	}