Merge "Add config for auto expanding first notification" into main

    <!-- Whether or not notifications that can be expanded will always be in their expanded state.

         This value only affects notifications that are not a group of notifications from the same

         applications. If this value is false, then only the first notification will be expanded;

         the other notifications need to be manually expanded by the user. -->

         applications. If this value is false, then only the first notification will be expanded

         when config_autoExpandFirstNotification is true; the other notifications need to be

         manually expanded by the user. -->

    <bool name="config_alwaysExpandNonGroupedNotifications">false</bool>

    <!-- Whether or not the first expandable notification will be expanded automatically by the

         system. This value only affects notifications that are not a group of notifications from

         the same applications and when config_alwaysExpandNonGroupedNotifications is false. -->

    <bool name="config_autoExpandFirstNotification">true</bool>

    <!-- Whether or not an expandable notification can be manually expanded or collapsed by the

         user. Grouped notifications are still expandable even if this value is false. -->

    <bool name="config_enableNonGroupedNotificationExpand">true</bool>

    private val mAlwaysExpandNonGroupedNotification =

        context.resources.getBoolean(R.bool.config_alwaysExpandNonGroupedNotifications)

    /**

     * `true` if the first non-group expandable notification should be expanded automatically

     * when possible. If `false`, then the first non-group expandable notification should not

     * be expanded.

     */

    private val mAutoExpandFirstNotification =

            context.resources.getBoolean(R.bool.config_autoExpandFirstNotification)

    override fun attach(pipeline: NotifPipeline) {

        pipeline.addOnBeforeRenderListListener(::onBeforeRenderList)

        pipeline.addOnAfterRenderEntryListener(::onAfterRenderEntry)

    private fun onAfterRenderEntry(entry: NotificationEntry, controller: NotifRowController) {

        // If mAlwaysExpandNonGroupedNotification is false, then only expand the

        // very first notification and if it's not a child of grouped notifications.

        controller.setSystemExpanded(mAlwaysExpandNonGroupedNotification || entry == entryToExpand)

        // very first notification if it's not a child of grouped notifications and when

        // mAutoExpandFirstNotification is true.

        controller.setSystemExpanded(mAlwaysExpandNonGroupedNotification ||

                (mAutoExpandFirstNotification && entry == entryToExpand))

        // Show/hide the feedback icon

        controller.setFeedbackIcon(mAssistantFeedbackController.getFeedbackIcon(entry))

        // Show the "alerted" bell icon