Java tutorial
/* * Copyright (c) 2015 IRCCloud, Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.irccloud.android.fragment; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.databinding.DataBindingUtil; import android.graphics.PorterDuff; import android.os.Build; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.DialogFragment; import android.support.v7.app.AlertDialog; import android.support.v7.widget.RecyclerView; import android.text.Html; import android.text.format.DateUtils; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.view.WindowManager; import android.widget.EditText; import android.widget.TextView; import com.fasterxml.jackson.databind.JsonNode; import com.irccloud.android.ColorScheme; import com.irccloud.android.IRCCloudApplication; import com.irccloud.android.IRCCloudJSONObject; import com.irccloud.android.NetworkConnection; import com.irccloud.android.R; import com.irccloud.android.data.model.Event; import com.irccloud.android.data.model.Server; import com.irccloud.android.data.collection.ServersList; import com.irccloud.android.data.model.User; import com.irccloud.android.data.collection.UsersList; import com.irccloud.android.databinding.RowChannelmodeBinding; import org.solovyev.android.views.llm.LinearLayoutManager; public class ChannelModeListFragment extends DialogFragment implements NetworkConnection.IRCEventHandler { JsonNode data; int cid; int bid = -1; IRCCloudJSONObject event; Adapter adapter; NetworkConnection conn; RecyclerView recyclerView; TextView empty; String mode; String placeholder; String mask; String list; String title; boolean canChangeMode = false; private class ViewHolder extends RecyclerView.ViewHolder { public RowChannelmodeBinding binding; public ViewHolder(View v) { super(v); binding = DataBindingUtil.bind(v); } } private class Adapter extends RecyclerView.Adapter<ViewHolder> { @Override public int getItemCount() { return data.size(); } @Override public long getItemId(int pos) { return pos; } OnClickListener removeClickListener = new OnClickListener() { @Override public void onClick(View v) { Integer position = (Integer) v.getTag(); try { conn.mode(cid, event.getString("channel"), "-" + mode + " " + data.get(position).get(mask).asText()); } catch (Exception e) { // TODO Auto-generated catch block NetworkConnection.printStackTraceToCrashlytics(e); } } }; @Override public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { View v = RowChannelmodeBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false) .getRoot(); return new ViewHolder(v); } @Override public void onBindViewHolder(ViewHolder holder, final int position) { RowChannelmodeBinding row = holder.binding; JsonNode node = data.get(position); row.setMask(Html.fromHtml(node.get(mask).asText())); if (node.has("usermask") && node.get("usermask") != null && node.get("usermask").asText() != null) row.setSetBy("Set " + DateUtils.getRelativeTimeSpanString(node.get("time").asLong() * 1000L, System.currentTimeMillis(), DateUtils.SECOND_IN_MILLIS) + " by " + node.get("usermask").asText()); else row.setSetBy(""); if (canChangeMode) { row.removeBtn.setVisibility(View.VISIBLE); row.removeBtn.setOnClickListener(removeClickListener); row.removeBtn.setColorFilter(ColorScheme.getInstance().colorControlNormal, PorterDuff.Mode.SRC_ATOP); row.removeBtn.setTag(position); } else { row.removeBtn.setVisibility(View.GONE); } row.executePendingBindings(); } } @Override public Dialog onCreateDialog(Bundle savedInstanceState) { Context ctx = getActivity(); if (ctx == null) return null; LayoutInflater inflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View v = inflater.inflate(R.layout.recyclerview, null); recyclerView = v.findViewById(R.id.recycler); recyclerView.setLayoutManager(new LinearLayoutManager(v.getContext())); empty = v.findViewById(android.R.id.empty); empty.setText(placeholder); if (savedInstanceState != null && savedInstanceState.containsKey("cid")) { cid = savedInstanceState.getInt("cid"); bid = savedInstanceState.getInt("bid"); event = new IRCCloudJSONObject(savedInstanceState.getString("event")); list = savedInstanceState.getString("list"); mask = savedInstanceState.getString("mask"); placeholder = savedInstanceState.getString("placeholder"); title = savedInstanceState.getString("title"); mode = savedInstanceState.getString("mode"); data = event.getJsonNode(list); adapter = new Adapter(); recyclerView.setAdapter(adapter); if (adapter.getItemCount() > 0) { empty.setVisibility(View.GONE); recyclerView.setVisibility(View.VISIBLE); } else { empty.setVisibility(View.VISIBLE); recyclerView.setVisibility(View.GONE); } } AlertDialog.Builder b = new AlertDialog.Builder(ctx).setTitle(title).setView(v).setNegativeButton("Close", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); try { if (canChangeMode) { b.setPositiveButton("Add", new AddClickListener()); } } catch (Exception e) { } AlertDialog d = b.create(); d.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE); return d; } class AddClickListener implements DialogInterface.OnClickListener { @Override public void onClick(DialogInterface d, int which) { Context ctx = getActivity(); ServersList s = ServersList.getInstance(); Server server = s.getServer(cid); AlertDialog.Builder builder = new AlertDialog.Builder(ctx); LayoutInflater inflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE); View view = inflater.inflate(R.layout.dialog_textprompt, null); TextView prompt = view.findViewById(R.id.prompt); final EditText input = view.findViewById(R.id.textInput); input.setHint("nickname!user@host.name"); prompt.setText("Add this hostmask"); builder.setTitle(server.getName() + " (" + server.getHostname() + ":" + (server.getPort()) + ")"); builder.setView(view); builder.setPositiveButton("Add", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { conn.mode(cid, event.getString("channel"), "+" + mode + " " + input.getText().toString()); dialog.dismiss(); } }); builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); AlertDialog dialog = builder.create(); dialog.setOwnerActivity(getActivity()); dialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE); dialog.show(); } } @Override public void onSaveInstanceState(Bundle state) { state.putInt("cid", cid); state.putInt("bid", bid); state.putString("event", event.toString()); state.putString("list", list); state.putString("mask", mask); state.putString("placeholder", placeholder); state.putString("title", title); state.putString("mode", mode); } @Override public void setArguments(Bundle args) { cid = args.getInt("cid", -1); bid = args.getInt("bid", -1); event = new IRCCloudJSONObject(args.getString("event")); list = args.getString("list"); mask = args.getString("mask"); placeholder = args.getString("placeholder"); title = args.getString("title"); mode = args.getString("mode"); data = event.getJsonNode(list); Server s = ServersList.getInstance().getServer(cid); if (s != null) { User self_user = UsersList.getInstance().getUser(bid, s.getNick()); canChangeMode = (self_user != null && (self_user.mode.contains(s.MODE_OWNER) || self_user.mode.contains(s.MODE_ADMIN) || self_user.mode.contains(s.MODE_OP))); } else { canChangeMode = false; } if (getActivity() != null && cid > 0 && recyclerView != null) { getActivity().runOnUiThread(new Runnable() { @Override public void run() { if (adapter == null) { adapter = new Adapter(); recyclerView.setAdapter(adapter); } else { adapter.notifyDataSetChanged(); } if (adapter.getItemCount() > 0) { empty.setVisibility(View.GONE); recyclerView.setVisibility(View.VISIBLE); } else { empty.setVisibility(View.VISIBLE); recyclerView.setVisibility(View.GONE); } } }); } } public void onResume() { super.onResume(); if (cid > 0) { adapter = new Adapter(); recyclerView.setAdapter(adapter); if (adapter.getItemCount() > 0) { empty.setVisibility(View.GONE); recyclerView.setVisibility(View.VISIBLE); } else { empty.setVisibility(View.VISIBLE); recyclerView.setVisibility(View.GONE); } } Server s = ServersList.getInstance().getServer(cid); if (s != null) { User self_user = UsersList.getInstance().getUser(bid, s.getNick()); canChangeMode = (self_user != null && (self_user.mode.contains(s.MODE_OWNER) || self_user.mode.contains(s.MODE_ADMIN) || self_user.mode.contains(s.MODE_OP) || self_user.mode.contains(s.MODE_HALFOP))); } else { canChangeMode = false; } } @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); conn = NetworkConnection.getInstance(); conn.addHandler(this); } @Override public void onDestroy() { super.onDestroy(); if (conn != null) conn.removeHandler(this); } public void onIRCEvent(int what, Object obj) { switch (what) { case NetworkConnection.EVENT_USERCHANNELMODE: Server s = ServersList.getInstance().getServer(cid); User self_user = UsersList.getInstance().getUser(bid, s.getNick()); canChangeMode = (self_user != null && (self_user.mode.contains(s.MODE_OWNER) || self_user.mode.contains(s.MODE_ADMIN) || self_user.mode.contains(s.MODE_OP))); getActivity().runOnUiThread(new Runnable() { @Override public void run() { if (adapter != null) adapter.notifyDataSetChanged(); } }); break; case NetworkConnection.EVENT_BUFFERMSG: Event e = (Event) obj; if (e.bid == bid && e.type.equals("channel_mode_list_change")) conn.mode(cid, event.getString("channel"), mode); break; default: break; } } @Override public void onIRCRequestSucceeded(int reqid, IRCCloudJSONObject object) { } @Override public void onIRCRequestFailed(int reqid, IRCCloudJSONObject object) { } }