packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarHeaderView.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2014 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.content.Context;
 import android.content.Intent;
 import android.graphics.Outline;
 import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.RelativeLayout;

 import com.android.systemui.R;
 import com.android.systemui.qs.QSPanel;
 import com.android.systemui.settings.BrightnessController;
 import com.android.systemui.settings.ToggleSlider;
 import com.android.systemui.statusbar.policy.UserInfoController;

 /**
  * The view to manage the header area in the expanded status bar.
  */
 public class StatusBarHeaderView extends RelativeLayout implements View.OnClickListener {

     /**
      * How much the header expansion gets rubberbanded while expanding the panel.
      */
     private static final float EXPANSION_RUBBERBAND_FACTOR = 0.35f;

     private boolean mExpanded;
     private boolean mOverscrolled;
     private boolean mKeyguardShowing;

     private View mBackground;
     private ViewGroup mSystemIconsContainer;
     private View mDateTime;
     private View mKeyguardCarrierText;
     private MultiUserSwitch mMultiUserSwitch;
     private View mDate;
     private View mStatusIcons;
     private View mSignalCluster;
     private View mSettingsButton;
     private View mBrightnessContainer;

     private int mCollapsedHeight;
     private int mExpandedHeight;
     private int mKeyguardHeight;

     private int mKeyguardWidth = ViewGroup.LayoutParams.MATCH_PARENT;
     private int mNormalWidth;

     private ActivityStarter mActivityStarter;
     private BrightnessController mBrightnessController;
     private QSPanel mQSPanel;

     private final Rect mClipBounds = new Rect();
     private final Outline mOutline = new Outline();

     public StatusBarHeaderView(Context context, AttributeSet attrs) {
         super(context, attrs);
     }

     @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
         mBackground = findViewById(R.id.background);
         mSystemIconsContainer = (ViewGroup) findViewById(R.id.system_icons_container);
         mDateTime = findViewById(R.id.datetime);
         mKeyguardCarrierText = findViewById(R.id.keyguard_carrier_text);
         mMultiUserSwitch = (MultiUserSwitch) findViewById(R.id.multi_user_switch);
         mDate = findViewById(R.id.date);
         mSettingsButton = findViewById(R.id.settings_button);
         mSettingsButton.setOnClickListener(this);
         mBrightnessContainer = findViewById(R.id.brightness_container);
         mBrightnessController = new BrightnessController(getContext(),
                 (ImageView) findViewById(R.id.brightness_icon),
                 (ToggleSlider) findViewById(R.id.brightness_slider));
         loadDimens();
         updateVisibilities();
         addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
             @Override
             public void onLayoutChange(View v, int left, int top, int right,
                     int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
                 if ((right - left) != (oldRight - oldLeft)) {
                     // width changed, update clipping
                     setClipping(getHeight());
                 }
             }
         });
     }

     private void loadDimens() {
         mCollapsedHeight = getResources().getDimensionPixelSize(R.dimen.status_bar_header_height);
         mExpandedHeight = getResources().getDimensionPixelSize(
                 R.dimen.status_bar_header_height_expanded);
         mKeyguardHeight = getResources().getDimensionPixelSize(
                 R.dimen.status_bar_header_height_keyguard);
         mNormalWidth = getLayoutParams().width;
     }

     public void setActivityStarter(ActivityStarter activityStarter) {
         mActivityStarter = activityStarter;
     }

     public int getCollapsedHeight() {
         return mKeyguardShowing ? mKeyguardHeight : mCollapsedHeight;
     }

     public int getExpandedHeight() {
         return mExpandedHeight;
     }

     public void setExpanded(boolean expanded, boolean overscrolled) {
         boolean changed = expanded != mExpanded;
         boolean overscrollChanged = overscrolled != mOverscrolled;
         mExpanded = expanded;
         mOverscrolled = overscrolled;
         if (changed || overscrollChanged) {
             updateHeights();
             updateVisibilities();
             updateSystemIconsLayoutParams();
             updateBrightnessControllerState();
             updateZTranslation();
             updateClickTargets();
             updateWidth();
             if (mQSPanel != null) {
                 mQSPanel.setExpanded(expanded && !overscrolled);
             }
         }
     }

     private void updateHeights() {
         boolean onKeyguardAndCollapsed = mKeyguardShowing && !mExpanded;
         int height;
         if (mExpanded) {
             height = mExpandedHeight;
         } else if (onKeyguardAndCollapsed) {
             height = mKeyguardHeight;
         } else {
             height = mCollapsedHeight;
         }
         ViewGroup.LayoutParams lp = getLayoutParams();
         if (lp.height != height) {
             lp.height = height;
             setLayoutParams(lp);
         }
         int systemIconsContainerHeight = onKeyguardAndCollapsed ? mKeyguardHeight : mCollapsedHeight;
         lp = mSystemIconsContainer.getLayoutParams();
         if (lp.height != systemIconsContainerHeight) {
             lp.height = systemIconsContainerHeight;
             mSystemIconsContainer.setLayoutParams(lp);
         }
         lp = mMultiUserSwitch.getLayoutParams();
         if (lp.height != systemIconsContainerHeight) {
             lp.height = systemIconsContainerHeight;
             mMultiUserSwitch.setLayoutParams(lp);
         }
     }

     private void updateWidth() {
         int width = (mKeyguardShowing && !mExpanded) ? mKeyguardWidth : mNormalWidth;
         ViewGroup.LayoutParams lp = getLayoutParams();
         if (width != lp.width) {
             lp.width = width;
             setLayoutParams(lp);
         }
     }

     private void updateVisibilities() {
         boolean onKeyguardAndCollapsed = mKeyguardShowing && !mExpanded;
         mBackground.setVisibility(onKeyguardAndCollapsed ? View.INVISIBLE : View.VISIBLE);
         mDateTime.setVisibility(onKeyguardAndCollapsed ? View.INVISIBLE : View.VISIBLE);
         mKeyguardCarrierText.setVisibility(onKeyguardAndCollapsed ? View.VISIBLE : View.GONE);
         mDate.setVisibility(mExpanded ? View.VISIBLE : View.GONE);
         mSettingsButton.setVisibility(mExpanded && !mOverscrolled ? View.VISIBLE : View.GONE);
         mBrightnessContainer.setVisibility(mExpanded ? View.VISIBLE : View.GONE);
         if (mStatusIcons != null) {
             mStatusIcons.setVisibility(!mExpanded || mOverscrolled ? View.VISIBLE : View.GONE);
         }
         if (mSignalCluster != null) {
             mSignalCluster.setVisibility(!mExpanded || mOverscrolled ? View.VISIBLE : View.GONE);
         }
     }

     private void updateSystemIconsLayoutParams() {
         RelativeLayout.LayoutParams lp = (LayoutParams) mSystemIconsContainer.getLayoutParams();
         lp.addRule(RelativeLayout.START_OF, mExpanded
                 ? mSettingsButton.getId()
                 : mMultiUserSwitch.getId());
     }

     private void updateBrightnessControllerState() {
         if (mExpanded) {
             mBrightnessController.registerCallbacks();
         } else {
             mBrightnessController.unregisterCallbacks();
         }
     }

     private void updateClickTargets() {
         mDateTime.setClickable(mExpanded);
         mMultiUserSwitch.setClickable(mExpanded);
     }

     private void updateZTranslation() {

         // If we are on the Keyguard, we need to set our z position to zero, so we don't get
         // shadows.
         if (mKeyguardShowing && !mExpanded) {
             setZ(0);
         } else {
             setTranslationZ(0);
         }
     }

     public void setExpansion(float height) {
         height = (height - mCollapsedHeight) * EXPANSION_RUBBERBAND_FACTOR + mCollapsedHeight;
         if (height < mCollapsedHeight) {
             height = mCollapsedHeight;
         }
         if (height > mExpandedHeight) {
             height = mExpandedHeight;
         }
         setClipping(height);
     }

     private void setClipping(float height) {
         mClipBounds.set(getPaddingLeft(), 0, getWidth() - getPaddingRight(), (int) height);
         setClipBounds(mClipBounds);
         mOutline.setRect(mClipBounds);
         setOutline(mOutline);
     }

     public View getBackgroundView() {
         return mBackground;
     }

     public void attachSystemIcons(LinearLayout systemIcons) {
         mSystemIconsContainer.addView(systemIcons);
         mStatusIcons = systemIcons.findViewById(R.id.statusIcons);
         mSignalCluster = systemIcons.findViewById(R.id.signal_cluster);
     }

     public void onSystemIconsDetached() {
         if (mStatusIcons != null) {
             mStatusIcons.setVisibility(View.VISIBLE);
         }
         if (mSignalCluster != null) {
             mSignalCluster.setVisibility(View.VISIBLE);
         }
         mStatusIcons = null;
         mSignalCluster = null;
     }

     public void setKeyguardShowing(boolean keyguardShowing) {
         mKeyguardShowing = keyguardShowing;
         updateHeights();
         updateWidth();
         updateVisibilities();
         updateZTranslation();
     }

     public void setUserInfoController(UserInfoController userInfoController) {
         mMultiUserSwitch.setUserInfoController(userInfoController);
     }

     public void setOverlayParent(ViewGroup parent) {
         mMultiUserSwitch.setOverlayParent(parent);
     }

     @Override
     public void onClick(View v) {
         if (v == mSettingsButton) {
             startSettingsActivity();
         }
     }

     private void startSettingsActivity() {
         mActivityStarter.startActivity(new Intent(android.provider.Settings.ACTION_SETTINGS));
     }

     public void setQSPanel(QSPanel qsp) {
         mQSPanel = qsp;
         if (mQSPanel != null) {
             mQSPanel.setCallback(mQsPanelCallback);
         }
     }

     private final QSPanel.Callback mQsPanelCallback = new QSPanel.Callback() {
         @Override
         public void onShowingDetail(boolean showingDetail) {
             mBrightnessContainer.animate().alpha(showingDetail ? 0 : 1).withLayer().start();
         }
     };

     @Override
     public boolean shouldDelayChildPressedState() {
         return true;
     }
 }
	/*
	* Copyright (C) 2014 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.content.Context;
	import android.content.Intent;
	import android.graphics.Outline;
	import android.graphics.Rect;
	import android.util.AttributeSet;
	import android.view.View;
	import android.view.ViewGroup;
	import android.widget.ImageView;
	import android.widget.LinearLayout;
	import android.widget.RelativeLayout;

	import com.android.systemui.R;
	import com.android.systemui.qs.QSPanel;
	import com.android.systemui.settings.BrightnessController;
	import com.android.systemui.settings.ToggleSlider;
	import com.android.systemui.statusbar.policy.UserInfoController;

	/**
	* The view to manage the header area in the expanded status bar.
	*/
	public class StatusBarHeaderView extends RelativeLayout implements View.OnClickListener {

	/**
	* How much the header expansion gets rubberbanded while expanding the panel.
	*/
	private static final float EXPANSION_RUBBERBAND_FACTOR = 0.35f;

	private boolean mExpanded;
	private boolean mOverscrolled;
	private boolean mKeyguardShowing;

	private View mBackground;
	private ViewGroup mSystemIconsContainer;
	private View mDateTime;
	private View mKeyguardCarrierText;
	private MultiUserSwitch mMultiUserSwitch;
	private View mDate;
	private View mStatusIcons;
	private View mSignalCluster;
	private View mSettingsButton;
	private View mBrightnessContainer;

	private int mCollapsedHeight;
	private int mExpandedHeight;
	private int mKeyguardHeight;

	private int mKeyguardWidth = ViewGroup.LayoutParams.MATCH_PARENT;
	private int mNormalWidth;

	private ActivityStarter mActivityStarter;
	private BrightnessController mBrightnessController;
	private QSPanel mQSPanel;

	private final Rect mClipBounds = new Rect();
	private final Outline mOutline = new Outline();

	public StatusBarHeaderView(Context context, AttributeSet attrs) {
	super(context, attrs);
	}

	@Override
	protected void onFinishInflate() {
	super.onFinishInflate();
	mBackground = findViewById(R.id.background);
	mSystemIconsContainer = (ViewGroup) findViewById(R.id.system_icons_container);
	mDateTime = findViewById(R.id.datetime);
	mKeyguardCarrierText = findViewById(R.id.keyguard_carrier_text);
	mMultiUserSwitch = (MultiUserSwitch) findViewById(R.id.multi_user_switch);
	mDate = findViewById(R.id.date);
	mSettingsButton = findViewById(R.id.settings_button);
	mSettingsButton.setOnClickListener(this);
	mBrightnessContainer = findViewById(R.id.brightness_container);
	mBrightnessController = new BrightnessController(getContext(),
	(ImageView) findViewById(R.id.brightness_icon),
	(ToggleSlider) findViewById(R.id.brightness_slider));
	loadDimens();
	updateVisibilities();
	addOnLayoutChangeListener(new View.OnLayoutChangeListener() {
	@Override
	public void onLayoutChange(View v, int left, int top, int right,
	int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) {
	if ((right - left) != (oldRight - oldLeft)) {
	// width changed, update clipping
	setClipping(getHeight());
	}
	}
	});
	}

	private void loadDimens() {
	mCollapsedHeight = getResources().getDimensionPixelSize(R.dimen.status_bar_header_height);
	mExpandedHeight = getResources().getDimensionPixelSize(
	R.dimen.status_bar_header_height_expanded);
	mKeyguardHeight = getResources().getDimensionPixelSize(
	R.dimen.status_bar_header_height_keyguard);
	mNormalWidth = getLayoutParams().width;
	}

	public void setActivityStarter(ActivityStarter activityStarter) {
	mActivityStarter = activityStarter;
	}

	public int getCollapsedHeight() {
	return mKeyguardShowing ? mKeyguardHeight : mCollapsedHeight;
	}

	public int getExpandedHeight() {
	return mExpandedHeight;
	}

	public void setExpanded(boolean expanded, boolean overscrolled) {
	boolean changed = expanded != mExpanded;
	boolean overscrollChanged = overscrolled != mOverscrolled;
	mExpanded = expanded;
	mOverscrolled = overscrolled;
	if (changed \|\| overscrollChanged) {
	updateHeights();
	updateVisibilities();
	updateSystemIconsLayoutParams();
	updateBrightnessControllerState();
	updateZTranslation();
	updateClickTargets();
	updateWidth();
	if (mQSPanel != null) {
	mQSPanel.setExpanded(expanded && !overscrolled);
	}
	}
	}

	private void updateHeights() {
	boolean onKeyguardAndCollapsed = mKeyguardShowing && !mExpanded;
	int height;
	if (mExpanded) {
	height = mExpandedHeight;
	} else if (onKeyguardAndCollapsed) {
	height = mKeyguardHeight;
	} else {
	height = mCollapsedHeight;
	}
	ViewGroup.LayoutParams lp = getLayoutParams();
	if (lp.height != height) {
	lp.height = height;
	setLayoutParams(lp);
	}
	int systemIconsContainerHeight = onKeyguardAndCollapsed ? mKeyguardHeight : mCollapsedHeight;
	lp = mSystemIconsContainer.getLayoutParams();
	if (lp.height != systemIconsContainerHeight) {
	lp.height = systemIconsContainerHeight;
	mSystemIconsContainer.setLayoutParams(lp);
	}
	lp = mMultiUserSwitch.getLayoutParams();
	if (lp.height != systemIconsContainerHeight) {
	lp.height = systemIconsContainerHeight;
	mMultiUserSwitch.setLayoutParams(lp);
	}
	}

	private void updateWidth() {
	int width = (mKeyguardShowing && !mExpanded) ? mKeyguardWidth : mNormalWidth;
	ViewGroup.LayoutParams lp = getLayoutParams();
	if (width != lp.width) {
	lp.width = width;
	setLayoutParams(lp);
	}
	}

	private void updateVisibilities() {
	boolean onKeyguardAndCollapsed = mKeyguardShowing && !mExpanded;
	mBackground.setVisibility(onKeyguardAndCollapsed ? View.INVISIBLE : View.VISIBLE);
	mDateTime.setVisibility(onKeyguardAndCollapsed ? View.INVISIBLE : View.VISIBLE);
	mKeyguardCarrierText.setVisibility(onKeyguardAndCollapsed ? View.VISIBLE : View.GONE);
	mDate.setVisibility(mExpanded ? View.VISIBLE : View.GONE);
	mSettingsButton.setVisibility(mExpanded && !mOverscrolled ? View.VISIBLE : View.GONE);
	mBrightnessContainer.setVisibility(mExpanded ? View.VISIBLE : View.GONE);
	if (mStatusIcons != null) {
	mStatusIcons.setVisibility(!mExpanded \|\| mOverscrolled ? View.VISIBLE : View.GONE);
	}
	if (mSignalCluster != null) {
	mSignalCluster.setVisibility(!mExpanded \|\| mOverscrolled ? View.VISIBLE : View.GONE);
	}
	}

	private void updateSystemIconsLayoutParams() {
	RelativeLayout.LayoutParams lp = (LayoutParams) mSystemIconsContainer.getLayoutParams();
	lp.addRule(RelativeLayout.START_OF, mExpanded
	? mSettingsButton.getId()
	: mMultiUserSwitch.getId());
	}

	private void updateBrightnessControllerState() {
	if (mExpanded) {
	mBrightnessController.registerCallbacks();
	} else {
	mBrightnessController.unregisterCallbacks();
	}
	}

	private void updateClickTargets() {
	mDateTime.setClickable(mExpanded);
	mMultiUserSwitch.setClickable(mExpanded);
	}

	private void updateZTranslation() {

	// If we are on the Keyguard, we need to set our z position to zero, so we don't get
	// shadows.
	if (mKeyguardShowing && !mExpanded) {
	setZ(0);
	} else {
	setTranslationZ(0);
	}
	}

	public void setExpansion(float height) {
	height = (height - mCollapsedHeight) * EXPANSION_RUBBERBAND_FACTOR + mCollapsedHeight;
	if (height < mCollapsedHeight) {
	height = mCollapsedHeight;
	}
	if (height > mExpandedHeight) {
	height = mExpandedHeight;
	}
	setClipping(height);
	}

	private void setClipping(float height) {
	mClipBounds.set(getPaddingLeft(), 0, getWidth() - getPaddingRight(), (int) height);
	setClipBounds(mClipBounds);
	mOutline.setRect(mClipBounds);
	setOutline(mOutline);
	}

	public View getBackgroundView() {
	return mBackground;
	}

	public void attachSystemIcons(LinearLayout systemIcons) {
	mSystemIconsContainer.addView(systemIcons);
	mStatusIcons = systemIcons.findViewById(R.id.statusIcons);
	mSignalCluster = systemIcons.findViewById(R.id.signal_cluster);
	}

	public void onSystemIconsDetached() {
	if (mStatusIcons != null) {
	mStatusIcons.setVisibility(View.VISIBLE);
	}
	if (mSignalCluster != null) {
	mSignalCluster.setVisibility(View.VISIBLE);
	}
	mStatusIcons = null;
	mSignalCluster = null;
	}

	public void setKeyguardShowing(boolean keyguardShowing) {
	mKeyguardShowing = keyguardShowing;
	updateHeights();
	updateWidth();
	updateVisibilities();
	updateZTranslation();
	}

	public void setUserInfoController(UserInfoController userInfoController) {
	mMultiUserSwitch.setUserInfoController(userInfoController);
	}

	public void setOverlayParent(ViewGroup parent) {
	mMultiUserSwitch.setOverlayParent(parent);
	}

	@Override
	public void onClick(View v) {
	if (v == mSettingsButton) {
	startSettingsActivity();
	}
	}

	private void startSettingsActivity() {
	mActivityStarter.startActivity(new Intent(android.provider.Settings.ACTION_SETTINGS));
	}

	public void setQSPanel(QSPanel qsp) {
	mQSPanel = qsp;
	if (mQSPanel != null) {
	mQSPanel.setCallback(mQsPanelCallback);
	}
	}

	private final QSPanel.Callback mQsPanelCallback = new QSPanel.Callback() {
	@Override
	public void onShowingDetail(boolean showingDetail) {
	mBrightnessContainer.animate().alpha(showingDetail ? 0 : 1).withLayer().start();
	}
	};

	@Override
	public boolean shouldDelayChildPressedState() {
	return true;
	}
	}