/*
 * Copyright © 2016 TIBCO Software,Inc.All rights reserved.
 * http://community.jaspersoft.com/project/jaspermobile-android
 *
 * Unless you have purchased a commercial license agreement from TIBCO Jaspersoft,
 * the following license terms apply:
 *
 * This program is part of TIBCO Jaspersoft Mobile for Android.
 *
 * TIBCO Jaspersoft Mobile is free software:you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation,either version 3of the License,or
 * (at your option)any later version.
 *
 * TIBCO Jaspersoft Mobile is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY;without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with TIBCO Jaspersoft Mobile for Android.If not,see
 * <http://www.gnu.org/licenses/lgpl>.
 */

package com.jaspersoft.android.jaspermobile.widget;

import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Parcel;
import android.os.Parcelable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Checkable;
import android.widget.RelativeLayout;

public class CheckedRelativeLayout extends RelativeLayout implements Checkable {
    private boolean mChecked;
    private static final int[] CHECKED_STATE_SET = {android.R.attr.state_checked};

    public CheckedRelativeLayout(Context context) {
        super(context);
    }

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

    public CheckedRelativeLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @SuppressLint("NewApi")
    @SuppressWarnings("deprecation")
    public void setSupportBackground(Drawable background) {
        int sdk = android.os.Build.VERSION.SDK_INT;
        if (sdk < android.os.Build.VERSION_CODES.JELLY_BEAN) {
            setBackgroundDrawable(background);
        } else {
            setBackground(background);
        }
    }

    public void setSupportBackground(int id) {
        setSupportBackground(getContext().getResources().getDrawable(id));
    }

    /**********************/
    /** Handle clicks **/
    /**********************/

    @Override
    public boolean performClick() {
        toggle();
        return super.performClick();
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        return onTouchEvent(ev);
    }

    /**************************/
    /** Checkable **/
    /**************************/

    @Override
    public void setChecked(boolean checked) {
        if (mChecked != checked) {
            mChecked = checked;
            refreshDrawableState();
            setCheckedRecursive(this, checked);
        }
    }

    private void setCheckedRecursive(ViewGroup parent, boolean checked) {
        int count = parent.getChildCount();
        for (int i = 0; i < count; i++) {
            View v = parent.getChildAt(i);
            if (v instanceof Checkable) {
                ((Checkable) v).setChecked(checked);
            }

            if (v instanceof ViewGroup) {
                setCheckedRecursive((ViewGroup) v, checked);
            }
        }
    }

    @Override
    public boolean isChecked() {
        return mChecked;
    }

    @Override
    public void toggle() {
        setChecked(!mChecked);
    }

    /**************************/
    /** Drawable States **/
    /**************************/

    @Override
    protected int[] onCreateDrawableState(int extraSpace) {
        final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
        if (isChecked()) {
            mergeDrawableStates(drawableState, CHECKED_STATE_SET);
        }

        return drawableState;
    }

    @Override
    protected void drawableStateChanged() {
        super.drawableStateChanged();

        Drawable drawable = getBackground();
        if (drawable != null) {
            int[] myDrawableState = getDrawableState();
            drawable.setState(myDrawableState);
            invalidate();
        }
    }

    @Override
    protected Parcelable onSaveInstanceState() {
        SavedState result = new SavedState(super.onSaveInstanceState());
        result.checked = mChecked;
        return result;
    }

    @Override
    protected void onRestoreInstanceState(Parcelable state) {
        if (!(state instanceof SavedState)) {
            super.onRestoreInstanceState(state);
            return;
        }

        SavedState ss = (SavedState) state;
        super.onRestoreInstanceState(ss.getSuperState());

        setChecked(ss.checked);
    }

    protected static class SavedState extends BaseSavedState {
        protected boolean checked;

        protected SavedState(Parcelable superState) {
            super(superState);
        }

        @Override
        public void writeToParcel(Parcel out, int flags) {
            super.writeToParcel(out, flags);
            out.writeInt(checked ? 1 : 0);
        }

        public static final Creator<SavedState> CREATOR = new Creator<SavedState>() {
            public SavedState createFromParcel(Parcel in) {
                return new SavedState(in);
            }

            public SavedState[] newArray(int size) {
                return new SavedState[size];
            }
        };

        private SavedState(Parcel in) {
            super(in);
            checked = in.readInt() == 1;
        }
    }
}