68 lines
2.7 KiB
Kotlin
68 lines
2.7 KiB
Kotlin
/* Copyright 2021 Tusky Contributors
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky.adapter
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import android.view.View
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import androidx.recyclerview.widget.RecyclerView
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import com.google.android.material.button.MaterialButton
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import com.google.android.material.progressindicator.CircularProgressIndicatorSpec
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import com.google.android.material.progressindicator.IndeterminateDrawable
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import com.keylesspalace.tusky.R
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import com.keylesspalace.tusky.interfaces.StatusActionListener
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/**
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* Placeholder for different timelines.
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*
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* Displays a "Load more" button for a particular status ID, or a
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* circular progress wheel if the status' page is being loaded.
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*
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* The user can only have one "Load more" operation in progress at
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* a time (determined by the adapter), so the contents of the view
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* and the enabled state is driven by that.
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*/
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class PlaceholderViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
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private val loadMoreButton: MaterialButton = itemView.findViewById(R.id.button_load_more)
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private val drawable = IndeterminateDrawable.createCircularDrawable(
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itemView.context,
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CircularProgressIndicatorSpec(itemView.context, null)
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)
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fun setup(listener: StatusActionListener, loading: Boolean) {
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itemView.isEnabled = !loading
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loadMoreButton.isEnabled = !loading
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if (loading) {
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loadMoreButton.text = ""
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loadMoreButton.icon = drawable
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return
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}
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loadMoreButton.text = itemView.context.getString(R.string.load_more_placeholder_text)
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loadMoreButton.icon = null
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// To allow the user to click anywhere in the layout to load more content set the click
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// listener on the parent layout instead of loadMoreButton.
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//
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// See the comments in item_status_placeholder.xml for more details.
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itemView.setOnClickListener {
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itemView.isEnabled = false
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loadMoreButton.isEnabled = false
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loadMoreButton.icon = drawable
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loadMoreButton.text = ""
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listener.onLoadMore(bindingAdapterPosition)
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}
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}
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}
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