packages/SystemUI/src/com/android/systemui/statusbar/NotificationViewWrapper.java

/*
 * 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;

import android.content.Context;
import android.view.View;

/**
 * Wraps the actual notification content view; used to implement behaviors which are different for
 * the individual templates and custom views.
 */
public abstract class NotificationViewWrapper {

    private static final String TAG_BIG_MEDIA_NARROW = "bigMediaNarrow";
    private static final String TAG_MEDIA = "media";
    private static final String TAG_BIG_PICTURE = "bigPicture";

    protected final View mView;

    public static NotificationViewWrapper wrap(Context ctx, View v) {
        if (v.getId() == com.android.internal.R.id.status_bar_latest_event_content) {
            if (TAG_BIG_MEDIA_NARROW.equals(v.getTag())) {
                return new NotificationBigMediaNarrowViewWrapper(ctx, v);
            } else if (TAG_MEDIA.equals(v.getTag())) {
                return new NotificationMediaViewWrapper(ctx, v);
            } else if (TAG_BIG_PICTURE.equals(v.getTag())) {
                return new NotificationBigMediaNarrowViewWrapper(ctx, v);
            } else {
                return new NotificationTemplateViewWrapper(ctx, v);
            }
        } else {
            return new NotificationCustomViewWrapper(v);
        }
    }

    protected NotificationViewWrapper(View view) {
        mView = view;
    }

    /**
     * In dark mode, we draw as little as possible, assuming a black background.
     *
     * @param dark whether we should display ourselves in dark mode
     * @param fade whether to animate the transition if the mode changes
     * @param delay if fading, the delay of the animation
     */
    public abstract void setDark(boolean dark, boolean fade, long delay);

    /**
     * Notifies this wrapper that the content of the view might have changed.
     */
    public void notifyContentUpdated() {}

    /**
     * @return true if this template might need to be clipped with a round rect to make it look
     *         nice, false otherwise
     */
    public boolean needsRoundRectClipping() {
        return false;
    }
}