154 lines
6.5 KiB
Kotlin
154 lines
6.5 KiB
Kotlin
/*
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* Twidere - Twitter client for Android
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*
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* Copyright (C) 2012-2015 Mariotaku Lee <mariotaku.lee@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General 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
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.mariotaku.twidere.fragment
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import android.content.Context
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import android.os.Bundle
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import androidx.loader.app.LoaderManager.LoaderCallbacks
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import androidx.loader.content.Loader
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import android.view.KeyEvent
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import androidx.loader.app.LoaderManager
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import androidx.loader.app.hasRunningLoadersSafe
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import com.bumptech.glide.RequestManager
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import kotlinx.android.synthetic.main.fragment_content_recyclerview.*
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import org.mariotaku.twidere.adapter.ParcelableGroupsAdapter
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import org.mariotaku.twidere.adapter.iface.IGroupsAdapter.GroupAdapterListener
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import org.mariotaku.twidere.adapter.iface.ILoadMoreSupportAdapter
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import org.mariotaku.twidere.adapter.iface.ILoadMoreSupportAdapter.IndicatorPosition
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import org.mariotaku.twidere.constant.IntentConstants.*
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import org.mariotaku.twidere.loader.iface.IExtendedLoader
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import org.mariotaku.twidere.loader.iface.IPaginationLoader
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import org.mariotaku.twidere.model.ParcelableGroup
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import org.mariotaku.twidere.model.UserKey
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import org.mariotaku.twidere.model.pagination.Pagination
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import org.mariotaku.twidere.util.IntentUtils
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import org.mariotaku.twidere.util.KeyboardShortcutsHandler
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import org.mariotaku.twidere.util.KeyboardShortcutsHandler.KeyboardShortcutCallback
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import org.mariotaku.twidere.util.RecyclerViewNavigationHelper
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import org.mariotaku.twidere.view.holder.GroupViewHolder
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abstract class ParcelableGroupsFragment : AbsContentListRecyclerViewFragment<ParcelableGroupsAdapter>(),
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LoaderCallbacks<List<ParcelableGroup>?>, GroupAdapterListener, KeyboardShortcutCallback {
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private lateinit var navigationHelper: RecyclerViewNavigationHelper
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protected var nextPagination: Pagination? = null
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protected var prevPagination: Pagination? = null
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protected val data: List<ParcelableGroup>?
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get() = adapter.getData()
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override var refreshing: Boolean
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get() {
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if (context == null || isDetached) return false
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return LoaderManager.getInstance(this).hasRunningLoadersSafe()
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}
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set(value) {
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super.refreshing = value
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}
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override fun onCreateAdapter(context: Context, requestManager: RequestManager): ParcelableGroupsAdapter {
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return ParcelableGroupsAdapter(context, this.requestManager)
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}
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protected val accountKey: UserKey?
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get() = arguments?.getParcelable<UserKey?>(EXTRA_ACCOUNT_KEY)
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protected fun hasMoreData(data: List<ParcelableGroup>?): Boolean {
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return data == null || data.isNotEmpty()
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}
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override fun onLoadFinished(loader: Loader<List<ParcelableGroup>?>, data: List<ParcelableGroup>?) {
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adapter.setData(data)
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if (loader !is IExtendedLoader || loader.fromUser) {
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adapter.loadMoreSupportedPosition = if (hasMoreData(data)) ILoadMoreSupportAdapter.END else ILoadMoreSupportAdapter.NONE
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refreshEnabled = true
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}
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if (loader is IExtendedLoader) {
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loader.fromUser = false
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}
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if (loader is IPaginationLoader) {
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nextPagination = loader.nextPagination
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prevPagination = loader.prevPagination
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}
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showContent()
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refreshEnabled = true
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refreshing = false
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setLoadMoreIndicatorPosition(ILoadMoreSupportAdapter.NONE)
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}
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override fun onLoadMoreContents(@IndicatorPosition position: Long) {
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// Only supports load from end, skip START flag
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if (position and ILoadMoreSupportAdapter.START != 0L) return
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super.onLoadMoreContents(position)
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if (position == 0L) return
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val loaderArgs = Bundle(arguments)
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loaderArgs.putBoolean(EXTRA_FROM_USER, true)
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loaderArgs.putParcelable(EXTRA_PAGINATION, nextPagination)
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LoaderManager.getInstance(this).restartLoader(0, loaderArgs, this)
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}
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override fun handleKeyboardShortcutSingle(handler: KeyboardShortcutsHandler, keyCode: Int, event: KeyEvent, metaState: Int): Boolean {
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return navigationHelper.handleKeyboardShortcutSingle(handler, keyCode, event, metaState)
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}
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override fun handleKeyboardShortcutRepeat(handler: KeyboardShortcutsHandler, keyCode: Int, repeatCount: Int, event: KeyEvent, metaState: Int): Boolean {
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return navigationHelper.handleKeyboardShortcutRepeat(handler, keyCode, repeatCount, event, metaState)
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}
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override fun isKeyboardShortcutHandled(handler: KeyboardShortcutsHandler, keyCode: Int, event: KeyEvent, metaState: Int): Boolean {
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return navigationHelper.isKeyboardShortcutHandled(handler, keyCode, event, metaState)
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}
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override fun onActivityCreated(savedInstanceState: Bundle?) {
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super.onActivityCreated(savedInstanceState)
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val layoutManager = layoutManager
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adapter.groupAdapterListener = this
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navigationHelper = RecyclerViewNavigationHelper(recyclerView, layoutManager, adapter,
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this)
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val loaderArgs = Bundle(arguments)
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loaderArgs.putBoolean(EXTRA_FROM_USER, true)
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LoaderManager.getInstance(this).initLoader(0, loaderArgs, this)
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}
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override fun onCreateLoader(id: Int, args: Bundle?): Loader<List<ParcelableGroup>?> {
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val fromUser = args?.getBoolean(EXTRA_FROM_USER)
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args?.remove(EXTRA_FROM_USER)
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return onCreateUserListsLoader(requireActivity(), args!!, fromUser!!)
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}
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override fun onLoaderReset(loader: Loader<List<ParcelableGroup>?>) {
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if (loader is IExtendedLoader) {
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loader.fromUser = false
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}
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}
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override fun onGroupClick(holder: GroupViewHolder, position: Int) {
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context?.let { IntentUtils.openGroupDetails(it, adapter.getGroup(position)!!) }
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}
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override fun onGroupLongClick(holder: GroupViewHolder, position: Int): Boolean {
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return false
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}
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protected abstract fun onCreateUserListsLoader(context: Context, args: Bundle, fromUser: Boolean): Loader<List<ParcelableGroup>?>
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}
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