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/*
* Copyright (C) 2016 The CyanogenMod 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.res.TypedArray;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.os.Handler;
import android.os.IBinder;
import android.os.UserHandle;
import android.util.AttributeSet;
import android.view.View;
import android.view.WindowManager;
import android.view.WindowManagerGlobal;
import android.widget.FrameLayout;
import com.android.systemui.R;
import com.android.systemui.cm.UserContentObserver;
import com.android.systemui.statusbar.BaseStatusBar;
import cyanogenmod.providers.CMSettings;
public class NavBarInsetLayout extends FrameLayout {
public static final String TAG = "NavBarInsetLayout";
public static final boolean DEBUG = BaseStatusBar.DEBUG;
boolean mLeftInsetMode = false;
private int mLeftInset = 0;
private int mRightInset = 0;
private final Paint mTransparentSrcPaint = new Paint();
private SettingsObserver mSettingsObserver;
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mSettingsObserver.observe();
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mSettingsObserver.unobserve();
}
public NavBarInsetLayout(Context context, AttributeSet attrs) {
super(context, attrs);
setMotionEventSplittingEnabled(false);
mTransparentSrcPaint.setColor(0);
mTransparentSrcPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC));
mSettingsObserver = new SettingsObserver(new Handler());
}
@Override
protected boolean fitSystemWindows(Rect insets) {
if (getFitsSystemWindows()) {
boolean paddingChanged;
if (mLeftInsetMode) {
paddingChanged = insets.right != getPaddingRight()
|| insets.top != getPaddingTop()
|| insets.bottom != getPaddingBottom();
if (insets.left != mLeftInset) {
mLeftInset = insets.left;
applyMargins();
}
} else {
paddingChanged = insets.left != getPaddingLeft()
|| insets.top != getPaddingTop()
|| insets.bottom != getPaddingBottom();
if (insets.right != mRightInset) {
mRightInset = insets.right;
applyMargins();
}
}
// Drop top inset, apply left inset and pass through bottom inset.
if (paddingChanged) {
setPadding(mLeftInsetMode ? 0 : insets.left,
0,
mLeftInsetMode ? insets.right : 0,
0);
}
insets.left = 0;
insets.top = 0;
insets.right = 0;
} else {
boolean applyMargins = false;
if (mLeftInset != 0) {
mLeftInset = 0;
applyMargins = true;
}
if (mRightInset != 0) {
mRightInset = 0;
applyMargins = true;
}
if (applyMargins) {
applyMargins();
}
boolean changed = getPaddingLeft() != 0
|| getPaddingRight() != 0
|| getPaddingTop() != 0
|| getPaddingBottom() != 0;
if (changed) {
setPadding(0, 0, 0, 0);
}
insets.top = 0;
}
return false;
}
private void applyMargins() {
final int N = getChildCount();
for (int i = 0; i < N; i++) {
View child = getChildAt(i);
if (child.getLayoutParams() instanceof InsetLayoutParams) {
InsetLayoutParams lp = (InsetLayoutParams) child.getLayoutParams();
if (!lp.ignoreRightInset) {
if (mLeftInsetMode && lp.leftMargin != mLeftInset) {
lp.leftMargin = mLeftInset;
if (lp.rightMargin != 0) {
lp.rightMargin = 0;
}
} else if (lp.rightMargin != mRightInset) {
lp.rightMargin = mRightInset;
if (lp.leftMargin != 0) {
lp.leftMargin = 0;
}
}
child.requestLayout();
}
}
}
}
@Override
public FrameLayout.LayoutParams generateLayoutParams(AttributeSet attrs) {
return new InsetLayoutParams(getContext(), attrs);
}
@Override
protected FrameLayout.LayoutParams generateDefaultLayoutParams() {
return new InsetLayoutParams(InsetLayoutParams.MATCH_PARENT,
InsetLayoutParams.MATCH_PARENT);
}
private class SettingsObserver extends UserContentObserver {
public SettingsObserver(Handler handler) {
super(handler);
}
@Override
protected void observe() {
super.observe();
mContext.getContentResolver().registerContentObserver(
CMSettings.System.getUriFor(CMSettings.System.NAVBAR_LEFT_IN_LANDSCAPE), false,
this, UserHandle.USER_CURRENT);
update();
}
@Override
protected void unobserve() {
super.unobserve();
mContext.getContentResolver().unregisterContentObserver(this);
}
@Override
protected void update() {
boolean before = mLeftInsetMode;
mLeftInsetMode = CMSettings.System.getIntForUser(mContext.getContentResolver(),
CMSettings.System.NAVBAR_LEFT_IN_LANDSCAPE, 0, UserHandle.USER_CURRENT) == 1;
if (mLeftInsetMode != before) {
applyMargins();
}
}
}
public static class InsetLayoutParams extends FrameLayout.LayoutParams {
public boolean ignoreRightInset;
public InsetLayoutParams(int width, int height) {
super(width, height);
}
public InsetLayoutParams(Context c, AttributeSet attrs) {
super(c, attrs);
TypedArray a = c.obtainStyledAttributes(attrs, R.styleable.StatusBarWindowView_Layout);
ignoreRightInset = a.getBoolean(
R.styleable.StatusBarWindowView_Layout_ignoreRightInset, false);
a.recycle();
}
}
}
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