chinwag-android/app/src/main/java/com/keylesspalace/tusky/TimelineAdapter.java

425 lines
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Java
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/* Copyright 2017 Andrew Dawson
*
* This file is part of Tusky.
*
* Tusky 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/>. */
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package com.keylesspalace.tusky;
import android.content.Context;
import android.support.annotation.Nullable;
import android.support.v7.widget.PagerSnapHelper;
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import android.support.v7.widget.RecyclerView;
import android.text.Spanned;
import android.text.style.ImageSpan;
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import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageButton;
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import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
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import android.widget.TextView;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.NetworkImageView;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
public class TimelineAdapter extends RecyclerView.Adapter {
private static final int VIEW_TYPE_STATUS = 0;
private static final int VIEW_TYPE_FOOTER = 1;
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private List<Status> statuses;
private StatusActionListener statusListener;
private FooterActionListener footerListener;
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public TimelineAdapter(StatusActionListener statusListener,
FooterActionListener footerListener) {
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super();
statuses = new ArrayList<>();
this.statusListener = statusListener;
this.footerListener = footerListener;
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}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
switch (viewType) {
default:
case VIEW_TYPE_STATUS: {
View view = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.item_status, viewGroup, false);
return new StatusViewHolder(view);
}
case VIEW_TYPE_FOOTER: {
View view = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.item_footer, viewGroup, false);
return new FooterViewHolder(view);
}
}
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}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int position) {
if (position < statuses.size()) {
StatusViewHolder holder = (StatusViewHolder) viewHolder;
Status status = statuses.get(position);
holder.setDisplayName(status.getDisplayName());
holder.setUsername(status.getUsername());
holder.setCreatedAt(status.getCreatedAt());
holder.setContent(status.getContent());
holder.setAvatar(status.getAvatar());
holder.setContent(status.getContent());
holder.setReblogged(status.getReblogged());
holder.setFavourited(status.getFavourited());
String rebloggedByUsername = status.getRebloggedByUsername();
if (rebloggedByUsername == null) {
holder.hideRebloggedByUsername();
} else {
holder.setRebloggedByUsername(rebloggedByUsername);
}
Status.MediaAttachment[] attachments = status.getAttachments();
boolean sensitive = status.getSensitive();
holder.setMediaPreviews(attachments, sensitive, statusListener);
/* A status without attachments is sometimes still marked sensitive, so it's necessary
* to check both whether there are any attachments and if it's marked sensitive. */
if (!sensitive || attachments.length == 0) {
holder.hideSensitiveMediaWarning();
}
holder.setupButtons(statusListener, position);
if (status.getVisibility() == Status.Visibility.PRIVATE) {
holder.disableReblogging();
}
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} else {
FooterViewHolder holder = (FooterViewHolder) viewHolder;
holder.setupButton(footerListener);
}
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}
@Override
public int getItemCount() {
return statuses.size() + 1;
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}
@Override
public int getItemViewType(int position) {
if (position == statuses.size()) {
return VIEW_TYPE_FOOTER;
} else {
return VIEW_TYPE_STATUS;
}
}
public int update(List<Status> newStatuses) {
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int scrollToPosition;
if (statuses == null || statuses.isEmpty()) {
statuses = newStatuses;
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scrollToPosition = 0;
} else {
int index = newStatuses.indexOf(statuses.get(0));
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if (index == -1) {
statuses.addAll(0, newStatuses);
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scrollToPosition = 0;
} else {
statuses.addAll(0, newStatuses.subList(0, index));
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scrollToPosition = index;
}
}
notifyDataSetChanged();
return scrollToPosition;
}
public void addItems(List<Status> newStatuses) {
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int end = statuses.size();
statuses.addAll(newStatuses);
notifyItemRangeInserted(end, newStatuses.size());
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}
public void removeItem(int position) {
statuses.remove(position);
notifyItemRemoved(position);
}
public @Nullable Status getItem(int position) {
if (position >= 0 && position < statuses.size()) {
return statuses.get(position);
}
return null;
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}
public static class StatusViewHolder extends RecyclerView.ViewHolder {
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private TextView displayName;
private TextView username;
private TextView sinceCreated;
private TextView content;
private NetworkImageView avatar;
private ImageView boostedIcon;
private TextView boostedByUsername;
private ImageButton replyButton;
private ImageButton reblogButton;
private ImageButton favouriteButton;
private ImageButton moreButton;
private boolean favourited;
private boolean reblogged;
private NetworkImageView mediaPreview0;
private NetworkImageView mediaPreview1;
private NetworkImageView mediaPreview2;
private NetworkImageView mediaPreview3;
private View sensitiveMediaWarning;
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public StatusViewHolder(View itemView) {
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super(itemView);
displayName = (TextView) itemView.findViewById(R.id.status_display_name);
username = (TextView) itemView.findViewById(R.id.status_username);
sinceCreated = (TextView) itemView.findViewById(R.id.status_since_created);
content = (TextView) itemView.findViewById(R.id.status_content);
avatar = (NetworkImageView) itemView.findViewById(R.id.status_avatar);
boostedIcon = (ImageView) itemView.findViewById(R.id.status_boosted_icon);
boostedByUsername = (TextView) itemView.findViewById(R.id.status_boosted);
replyButton = (ImageButton) itemView.findViewById(R.id.status_reply);
reblogButton = (ImageButton) itemView.findViewById(R.id.status_reblog);
favouriteButton = (ImageButton) itemView.findViewById(R.id.status_favourite);
moreButton = (ImageButton) itemView.findViewById(R.id.status_more);
reblogged = false;
favourited = false;
mediaPreview0 = (NetworkImageView) itemView.findViewById(R.id.status_media_preview_0);
mediaPreview1 = (NetworkImageView) itemView.findViewById(R.id.status_media_preview_1);
mediaPreview2 = (NetworkImageView) itemView.findViewById(R.id.status_media_preview_2);
mediaPreview3 = (NetworkImageView) itemView.findViewById(R.id.status_media_preview_3);
mediaPreview0.setDefaultImageResId(R.drawable.media_preview_unloaded);
mediaPreview1.setDefaultImageResId(R.drawable.media_preview_unloaded);
mediaPreview2.setDefaultImageResId(R.drawable.media_preview_unloaded);
mediaPreview3.setDefaultImageResId(R.drawable.media_preview_unloaded);
sensitiveMediaWarning = itemView.findViewById(R.id.status_sensitive_media_warning);
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}
public void setDisplayName(String name) {
displayName.setText(name);
}
public void setUsername(String name) {
Context context = username.getContext();
String format = context.getString(R.string.status_username_format);
String usernameText = String.format(format, name);
username.setText(usernameText);
}
public void setContent(Spanned content) {
this.content.setText(content);
}
public void setAvatar(String url) {
Context context = avatar.getContext();
ImageLoader imageLoader = VolleySingleton.getInstance(context).getImageLoader();
avatar.setImageUrl(url, imageLoader);
avatar.setDefaultImageResId(R.drawable.avatar_default);
avatar.setErrorImageResId(R.drawable.avatar_error);
}
/* This is a rough duplicate of android.text.format.DateUtils.getRelativeTimeSpanString,
* but even with the FORMAT_ABBREV_RELATIVE flag it wasn't abbreviating enough. */
private String getRelativeTimeSpanString(long then, long now) {
final long MINUTE = 60;
final long HOUR = 60 * MINUTE;
final long DAY = 24 * HOUR;
final long YEAR = 365 * DAY;
long span = (now - then) / 1000;
String prefix = "";
if (span < 0) {
prefix = "in ";
span = -span;
}
String unit;
if (span < MINUTE) {
unit = "s";
} else if (span < HOUR) {
span /= MINUTE;
unit = "m";
} else if (span < DAY) {
span /= HOUR;
unit = "h";
} else if (span < YEAR) {
span /= DAY;
unit = "d";
} else {
span /= YEAR;
unit = "y";
}
return prefix + span + unit;
}
public void setCreatedAt(@Nullable Date createdAt) {
String readout;
if (createdAt != null) {
long then = createdAt.getTime();
long now = new Date().getTime();
readout = getRelativeTimeSpanString(then, now);
} else {
readout = "?m"; // unknown minutes~
}
sinceCreated.setText(readout);
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}
public void setRebloggedByUsername(String name) {
Context context = boostedByUsername.getContext();
String format = context.getString(R.string.status_boosted_format);
String boostedText = String.format(format, name);
boostedByUsername.setText(boostedText);
boostedIcon.setVisibility(View.VISIBLE);
boostedByUsername.setVisibility(View.VISIBLE);
}
public void hideRebloggedByUsername() {
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boostedIcon.setVisibility(View.GONE);
boostedByUsername.setVisibility(View.GONE);
}
public void setReblogged(boolean reblogged) {
this.reblogged = reblogged;
if (!reblogged) {
reblogButton.setImageResource(R.drawable.ic_reblog_off);
} else {
reblogButton.setImageResource(R.drawable.ic_reblog_on);
}
}
public void disableReblogging() {
reblogButton.setEnabled(false);
reblogButton.setImageResource(R.drawable.ic_reblog_disabled);
}
public void setFavourited(boolean favourited) {
this.favourited = favourited;
if (!favourited) {
favouriteButton.setImageResource(R.drawable.ic_favourite_off);
} else {
favouriteButton.setImageResource(R.drawable.ic_favourite_on);
}
}
public void setMediaPreviews(final Status.MediaAttachment[] attachments,
boolean sensitive, final StatusActionListener listener) {
final NetworkImageView[] previews = {
mediaPreview0,
mediaPreview1,
mediaPreview2,
mediaPreview3
};
Context context = mediaPreview0.getContext();
ImageLoader imageLoader = VolleySingleton.getInstance(context).getImageLoader();
final int n = Math.min(attachments.length, Status.MAX_MEDIA_ATTACHMENTS);
for (int i = 0; i < n; i++) {
String previewUrl = attachments[i].getPreviewUrl();
previews[i].setImageUrl(previewUrl, imageLoader);
if (!sensitive) {
previews[i].setVisibility(View.VISIBLE);
} else {
previews[i].setVisibility(View.GONE);
}
final String url = attachments[i].getUrl();
final Status.MediaAttachment.Type type = attachments[i].getType();
previews[i].setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onViewMedia(url, type);
}
});
}
if (sensitive) {
sensitiveMediaWarning.setVisibility(View.VISIBLE);
sensitiveMediaWarning.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
v.setVisibility(View.GONE);
for (int i = 0; i < n; i++) {
previews[i].setVisibility(View.VISIBLE);
}
v.setOnClickListener(null);
}
});
}
// Hide any of the placeholder previews beyond the ones set.
for (int i = n; i < Status.MAX_MEDIA_ATTACHMENTS; i++) {
previews[i].setImageUrl(null, imageLoader);
previews[i].setVisibility(View.GONE);
}
}
public void hideSensitiveMediaWarning() {
sensitiveMediaWarning.setVisibility(View.GONE);
}
public void setupButtons(final StatusActionListener listener, final int position) {
replyButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onReply(position);
}
});
reblogButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onReblog(!reblogged, position);
}
});
favouriteButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onFavourite(!favourited, position);
}
});
moreButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onMore(v, position);
}
});
}
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}
public static class FooterViewHolder extends RecyclerView.ViewHolder {
private LinearLayout retryBar;
private Button retry;
private ProgressBar progressBar;
public FooterViewHolder(View itemView) {
super(itemView);
retryBar = (LinearLayout) itemView.findViewById(R.id.footer_retry_bar);
retry = (Button) itemView.findViewById(R.id.footer_retry_button);
progressBar = (ProgressBar) itemView.findViewById(R.id.footer_progress_bar);
progressBar.setIndeterminate(true);
}
public void setupButton(final FooterActionListener listener) {
retry.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
listener.onLoadMore();
}
});
}
public void showRetry(boolean show) {
if (!show) {
retryBar.setVisibility(View.GONE);
progressBar.setVisibility(View.VISIBLE);
} else {
retryBar.setVisibility(View.VISIBLE);
progressBar.setVisibility(View.GONE);
}
}
}
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}