Add clock plugin interface

Use: Control over swipes/input for notification views, can be used to control what happens when you swipe/long-press

Use: Control over swipes/input for notification views, can be used to control what happens when you swipe/long-press

### Action: com.android.systemui.action.PLUGIN_CLOCK

Expected interface: [ClockPlugin](/packages/SystemUI/plugin/src/com/android/systemui/plugins/ClockPlugin.java)

Use: Allows replacement of the keyguard main clock.

# Global plugin dependencies

# Global plugin dependencies

These classes can be accessed by any plugin using PluginDependency as long as they @Requires them.

These classes can be accessed by any plugin using PluginDependency as long as they @Requires them.

/*

 * Copyright (C) 2018 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.plugins;

import com.android.systemui.plugins.annotations.ProvidesInterface;

import android.graphics.Paint.Style;

import android.view.View;

/**

 * This plugin is used to replace main clock in keyguard.

 */

@ProvidesInterface(action = ClockPlugin.ACTION, version = ClockPlugin.VERSION)

public interface ClockPlugin extends Plugin {

    String ACTION = "com.android.systemui.action.PLUGIN_CLOCK";

    int VERSION = 1;

    /**

     * Get clock view.

     * @return clock view from plugin.

     */

    View getView();

    /**

     * Set clock paint style.

     * @param style The new style to set in the paint.

     */

    void setStyle(Style style);

    /**

     * Set clock text color.

     * @param color A color value.

     */

    void setTextColor(int color);

}