Java tutorial
/* Copyright 2017 Andrew Dawson * * This file is a part of Tusky. * * This program is free software; you can redistribute it and/or modify it under the terms of the * GNU General Public License as published by the Free Software Foundation; either version 3 of the * License, or (at your option) any later version. * * Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General * Public License for more details. * * You should have received a copy of the GNU General Public License along with Tusky; if not, * see <http://www.gnu.org/licenses>. */ package com.keylesspalace.tusky.fragment; import android.content.ClipData; import android.content.ClipboardManager; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.ActivityOptionsCompat; import android.support.v4.view.ViewCompat; import android.support.v7.widget.PopupMenu; import android.text.Spanned; import android.view.Menu; import android.view.View; import com.keylesspalace.tusky.BottomSheetActivity; import com.keylesspalace.tusky.ComposeActivity; import com.keylesspalace.tusky.R; import com.keylesspalace.tusky.ReportActivity; import com.keylesspalace.tusky.TuskyApplication; import com.keylesspalace.tusky.ViewMediaActivity; import com.keylesspalace.tusky.ViewTagActivity; import com.keylesspalace.tusky.ViewVideoActivity; import com.keylesspalace.tusky.db.AccountEntity; import com.keylesspalace.tusky.db.AccountManager; import com.keylesspalace.tusky.entity.Attachment; import com.keylesspalace.tusky.entity.Status; import com.keylesspalace.tusky.network.MastodonApi; import com.keylesspalace.tusky.network.TimelineCases; import com.keylesspalace.tusky.util.HtmlUtils; import com.keylesspalace.tusky.viewdata.AttachmentViewData; import java.util.LinkedHashSet; import java.util.List; import java.util.Set; import javax.inject.Inject; /* Note from Andrew on Jan. 22, 2017: This class is a design problem for me, so I left it with an * awkward name. TimelineFragment and NotificationFragment have significant overlap but the nature * of that is complicated by how they're coupled with Status and Notification and the corresponding * adapters. I feel like the profile pages and thread viewer, which I haven't made yet, will also * overlap functionality. So, I'm momentarily leaving it and hopefully working on those will clear * up what needs to be where. */ public abstract class SFragment extends BaseFragment { protected String loggedInAccountId; protected String loggedInUsername; protected abstract TimelineCases timelineCases(); protected abstract void removeItem(int position); protected abstract void onReblog(final boolean reblog, final int position); private BottomSheetActivity bottomSheetActivity; @Inject public MastodonApi mastodonApi; @Inject public AccountManager accountManager; @Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); AccountEntity activeAccount = accountManager.getActiveAccount(); if (activeAccount != null) { loggedInAccountId = activeAccount.getAccountId(); loggedInUsername = activeAccount.getUsername(); } } @Override public void startActivity(Intent intent) { super.startActivity(intent); getActivity().overridePendingTransition(R.anim.slide_from_right, R.anim.slide_to_left); } @Override public void onAttach(Context context) { super.onAttach(context); if (context instanceof BottomSheetActivity) { bottomSheetActivity = (BottomSheetActivity) context; } else { throw new IllegalStateException("Fragment must be attached to a BottomSheetActivity!"); } } protected void openReblog(@Nullable final Status status) { if (status == null) return; bottomSheetActivity.viewAccount(status.getAccount().getId()); } protected void viewThread(Status status) { bottomSheetActivity.viewThread(status); } protected void viewAccount(String accountId) { bottomSheetActivity.viewAccount(accountId); } public void onViewUrl(String url) { bottomSheetActivity.viewUrl(url); } protected void reply(Status status) { String inReplyToId = status.getActionableId(); Status actionableStatus = status.getActionableStatus(); Status.Visibility replyVisibility = actionableStatus.getVisibility(); String contentWarning = actionableStatus.getSpoilerText(); Status.Mention[] mentions = actionableStatus.getMentions(); Set<String> mentionedUsernames = new LinkedHashSet<>(); mentionedUsernames.add(actionableStatus.getAccount().getUsername()); for (Status.Mention mention : mentions) { mentionedUsernames.add(mention.getUsername()); } mentionedUsernames.remove(loggedInUsername); Intent intent = new ComposeActivity.IntentBuilder().inReplyToId(inReplyToId) .replyVisibility(replyVisibility).contentWarning(contentWarning) .mentionedUsernames(mentionedUsernames) .repyingStatusAuthor(actionableStatus.getAccount().getLocalUsername()) .replyingStatusContent(actionableStatus.getContent().toString()).build(getContext()); startActivity(intent); } protected void more(final Status status, View view, final int position) { final String id = status.getActionableId(); final String accountId = status.getActionableStatus().getAccount().getId(); final String accountUsename = status.getActionableStatus().getAccount().getUsername(); final Spanned content = status.getActionableStatus().getContent(); final String statusUrl = status.getActionableStatus().getUrl(); PopupMenu popup = new PopupMenu(getContext(), view); // Give a different menu depending on whether this is the user's own toot or not. if (loggedInAccountId == null || !loggedInAccountId.equals(accountId)) { popup.inflate(R.menu.status_more); } else { popup.inflate(R.menu.status_more_for_user); Menu menu = popup.getMenu(); if (status.getVisibility() == Status.Visibility.PRIVATE) { boolean reblogged = status.getReblogged(); if (status.getReblog() != null) reblogged = status.getReblog().getReblogged(); menu.findItem(R.id.status_reblog_private).setVisible(!reblogged); menu.findItem(R.id.status_unreblog_private).setVisible(reblogged); } } popup.setOnMenuItemClickListener(item -> { switch (item.getItemId()) { case R.id.status_share_content: { StringBuilder sb = new StringBuilder(); sb.append(status.getAccount().getUsername()); sb.append(" - "); sb.append(status.getContent().toString()); Intent sendIntent = new Intent(); sendIntent.setAction(Intent.ACTION_SEND); sendIntent.putExtra(Intent.EXTRA_TEXT, sb.toString()); sendIntent.setType("text/plain"); startActivity( Intent.createChooser(sendIntent, getResources().getText(R.string.send_status_content_to))); return true; } case R.id.status_share_link: { Intent sendIntent = new Intent(); sendIntent.setAction(Intent.ACTION_SEND); sendIntent.putExtra(Intent.EXTRA_TEXT, statusUrl); sendIntent.setType("text/plain"); startActivity( Intent.createChooser(sendIntent, getResources().getText(R.string.send_status_link_to))); return true; } case R.id.status_copy_link: { ClipboardManager clipboard = (ClipboardManager) getActivity() .getSystemService(Context.CLIPBOARD_SERVICE); ClipData clip = ClipData.newPlainText(null, statusUrl); clipboard.setPrimaryClip(clip); return true; } case R.id.status_mute: { timelineCases().mute(accountId); return true; } case R.id.status_block: { timelineCases().block(accountId); return true; } case R.id.status_report: { openReportPage(accountId, accountUsename, id, content); return true; } case R.id.status_unreblog_private: { onReblog(false, position); return true; } case R.id.status_reblog_private: { onReblog(true, position); return true; } case R.id.status_delete: { timelineCases().delete(id); removeItem(position); return true; } } return false; }); popup.show(); } protected void viewMedia(int urlIndex, Status status, @Nullable View view) { final Status actionable = status.getActionableStatus(); final Attachment active = actionable.getAttachments().get(urlIndex); Attachment.Type type = active.getType(); switch (type) { case IMAGE: { final List<AttachmentViewData> attachments = AttachmentViewData.list(actionable); final Intent intent = ViewMediaActivity.newIntent(getContext(), attachments, urlIndex); if (view != null) { String url = active.getUrl(); ViewCompat.setTransitionName(view, url); ActivityOptionsCompat options = ActivityOptionsCompat.makeSceneTransitionAnimation(getActivity(), view, url); startActivity(intent, options.toBundle()); } else { startActivity(intent); } break; } case GIFV: case VIDEO: { Intent intent = new Intent(getContext(), ViewVideoActivity.class); intent.putExtra("url", active.getUrl()); startActivity(intent); break; } case UNKNOWN: { /* Intentionally do nothing. This case is here is to handle when new attachment * types are added to the API before code is added here to handle them. So, the * best fallback is to just show the preview and ignore requests to view them. */ break; } } } protected void viewTag(String tag) { Intent intent = new Intent(getContext(), ViewTagActivity.class); intent.putExtra("hashtag", tag); startActivity(intent); } protected void openReportPage(String accountId, String accountUsername, String statusId, Spanned statusContent) { Intent intent = new Intent(getContext(), ReportActivity.class); intent.putExtra("account_id", accountId); intent.putExtra("account_username", accountUsername); intent.putExtra("status_id", statusId); intent.putExtra("status_content", HtmlUtils.toHtml(statusContent)); startActivity(intent); } }