packages/SystemUI/src/com/android/systemui/qs/QSCarrier.java

/*
 * Copyright (C) 2019 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.qs;

import android.content.Context;
import android.content.res.ColorStateList;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.view.View;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.android.settingslib.Utils;
import com.android.settingslib.graph.SignalDrawable;
import com.android.systemui.R;

public class QSCarrier extends LinearLayout {

    private View mMobileGroup;
    private QSCarrierText mCarrierText;
    private ImageView mMobileSignal;
    private ImageView mMobileRoaming;
    private ColorStateList mColorForegroundStateList;
    private float mColorForegroundIntensity;

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

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

    public QSCarrier(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    public QSCarrier(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }

    @Override
    protected void onFinishInflate() {
        super.onFinishInflate();
        mMobileGroup = findViewById(R.id.mobile_combo);
        mMobileSignal = findViewById(R.id.mobile_signal);
        mMobileRoaming = findViewById(R.id.mobile_roaming);
        mCarrierText = findViewById(R.id.qs_carrier_text);

        int colorForeground = Utils.getColorAttrDefaultColor(mContext,
                android.R.attr.colorForeground);
        mColorForegroundStateList = ColorStateList.valueOf(colorForeground);
        mColorForegroundIntensity = QuickStatusBarHeader.getColorIntensity(colorForeground);

    }

    public void updateState(QSCarrierGroup.CellSignalState state) {
        mMobileGroup.setVisibility(state.visible ? View.VISIBLE : View.GONE);
        if (state.visible) {
            mMobileRoaming.setVisibility(state.roaming ? View.VISIBLE : View.GONE);
            mMobileRoaming.setImageTintList(mColorForegroundStateList);
            SignalDrawable d = new SignalDrawable(mContext);
            d.setDarkIntensity(mColorForegroundIntensity);
            mMobileSignal.setImageDrawable(d);
            mMobileSignal.setImageLevel(state.mobileSignalIconId);

            StringBuilder contentDescription = new StringBuilder();
            if (state.contentDescription != null) {
                contentDescription.append(state.contentDescription).append(", ");
            }
            if (state.roaming) {
                contentDescription
                        .append(mContext.getString(R.string.data_connection_roaming))
                        .append(", ");
            }
            // TODO: show mobile data off/no internet text for 5 seconds before carrier text
            if (TextUtils.equals(state.typeContentDescription,
                    mContext.getString(R.string.data_connection_no_internet))
                    || TextUtils.equals(state.typeContentDescription,
                    mContext.getString(R.string.cell_data_off_content_description))) {
                contentDescription.append(state.typeContentDescription);
            }
            mMobileSignal.setContentDescription(contentDescription);
        }
    }

    public void setCarrierText(CharSequence text) {
        mCarrierText.setText(text);
    }

    /**
     * TextView that changes its ellipsize value with its visibility.
     */
    public static class QSCarrierText extends TextView {

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

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

        public QSCarrierText(Context context, AttributeSet attrs, int defStyleAttr) {
            super(context, attrs, defStyleAttr);
        }

        public QSCarrierText(Context context, AttributeSet attrs, int defStyleAttr,
                int defStyleRes) {
            super(context, attrs, defStyleAttr, defStyleRes);
        }

        @Override
        protected void onVisibilityChanged(View changedView, int visibility) {
            super.onVisibilityChanged(changedView, visibility);
            // Only show marquee when visible
            if (visibility == VISIBLE) {
                setEllipsize(TextUtils.TruncateAt.MARQUEE);
                setSelected(true);
            } else {
                setEllipsize(TextUtils.TruncateAt.END);
                setSelected(false);
            }
        }
    }
}