New command: /clear Clear the history of the current conversation

app/src/main/java/org/yaaic/adapter/ConversationPagerAdapter.java

@@ -91,6 +91,16 @@ public void removeConversation(int position) {
         notifyDataSetChanged();
     }
 
+    /**
+     * Update the history of the conversation at the given position from the adapter.
+     *
+     * @param position
+     */
+    public void updateConversation(int position) {
+        ConversationInfo convInfo = conversations.get(position);
+        convInfo.adapter.update(convInfo.conv);
+    }
+
     /**
      * Get position of given item.
      */

app/src/main/java/org/yaaic/adapter/MessageListAdapter.java

@@ -51,29 +51,11 @@ public class MessageListAdapter extends BaseAdapter
      */
     public MessageListAdapter(Conversation conversation, Context context)
     {
-        LinkedList<TextView> messages = new LinkedList<TextView>();
-
-        // Render channel name as first message in channel
-        if (conversation.getType() != Conversation.TYPE_SERVER) {
-            Message header = new Message(conversation.getName());
-            header.setColor(Message.COLOR_RED);
-            messages.add(header.renderTextView(context));
-        }
-
-        // Optimization - cache field lookups
-        LinkedList<Message> mHistory =  conversation.getHistory();
-        int mSize = mHistory.size();
-
-        for (int i = 0; i < mSize; i++) {
-            messages.add(mHistory.get(i).renderTextView(context));
-        }
+        this.context = context;
+        this.messages = new LinkedList<TextView>();
 
-        // XXX: We don't want to clear the buffer, we want to add only
-        //      buffered messages that are not already added (history)
-        conversation.clearBuffer();
+        update(conversation);
 
-        this.messages = messages;
-        this.context = context;
         historySize = conversation.getHistorySize();
     }
 
@@ -87,7 +69,7 @@ public void addMessage(Message message)
         messages.add(message.renderTextView(context));
 
         if (messages.size() > historySize) {
-            messages.remove(0);
+            messages.remove(1);
         }
 
         notifyDataSetChanged();
@@ -108,7 +90,7 @@ public void addBulkMessages(LinkedList<Message> messages)
             mMessages.add(messages.get(i).renderTextView(mContext));
 
             if (mMessages.size() > historySize) {
-                mMessages.remove(0);
+                mMessages.remove(1);
             }
         }
 
@@ -174,4 +156,35 @@ public void unregisterDataSetObserver(DataSetObserver observer) {
         }
         super.unregisterDataSetObserver(observer);
     }
+
+    /**
+     * Update the history from the conversation.
+     *
+     * @param conversation
+     */
+    public void update(Conversation conversation)
+    {
+        messages.clear();
+
+        // Render channel name as first message in channel
+        if (conversation.getType() != Conversation.TYPE_SERVER) {
+            Message header = new Message(conversation.getName());
+            header.setColor(Message.COLOR_RED);
+            messages.add(header.renderTextView(context));
+        }
+
+        // Optimization - cache field lookups
+        LinkedList<Message> mHistory = conversation.getHistory();
+        int mSize = mHistory.size();
+
+        for (int i = 0; i < mSize; i++) {
+            messages.add(mHistory.get(i).renderTextView(context));
+        }
+
+        // XXX: We don't want to clear the buffer, we want to add only
+        //      buffered messages that are not already added (history)
+        conversation.clearBuffer();
+
+        notifyDataSetChanged();
+    }
 }

app/src/main/java/org/yaaic/command/CommandParser.java

@@ -25,6 +25,7 @@
 import org.yaaic.command.handler.AMsgHandler;
 import org.yaaic.command.handler.AwayHandler;
 import org.yaaic.command.handler.BackHandler;
+import org.yaaic.command.handler.ClearHandler;
 import org.yaaic.command.handler.CloseHandler;
 import org.yaaic.command.handler.DCCHandler;
 import org.yaaic.command.handler.DeopHandler;
@@ -100,6 +101,7 @@ private CommandParser()
         commands.put("msg", new MsgHandler());
         commands.put("quote", new RawHandler());
         commands.put("amsg", new AMsgHandler());
+        commands.put("clear", new ClearHandler());
 
         aliases = new HashMap<String, String>();
 

app/src/main/java/org/yaaic/command/handler/ClearHandler.java

@@ -0,0 +1,59 @@
+package org.yaaic.command.handler;
+
+import org.yaaic.R;
+import org.yaaic.command.BaseHandler;
+import org.yaaic.exception.CommandException;
+import org.yaaic.irc.IRCService;
+import org.yaaic.model.Broadcast;
+import org.yaaic.model.Conversation;
+import org.yaaic.model.Server;
+
+import android.content.Context;
+import android.content.Intent;
+
+/**
+ * Command: /clear
+ * 
+ * Clear the history of the current window
+ * 
+ * @author Xenega <[email protected]>
+ */
+public class ClearHandler extends BaseHandler
+{
+    /**
+     * Execute /clear
+     */
+    @Override
+    public void execute(String[] params, Server server, Conversation conversation, IRCService service) throws CommandException
+    {
+        if (params.length == 1) {
+            conversation.clearHistory();
+            conversation.clearBuffer();
+
+            Intent intent = Broadcast.createConversationIntent(
+                Broadcast.CONVERSATION_CLEAR,
+                server.getId(),
+                conversation.getName()
+            );
+            service.sendBroadcast(intent);
+        }
+    }
+
+    /**
+     * Usage of /clear
+     */
+    @Override
+    public String getUsage()
+    {
+        return "/clear";
+    }
+
+    /**
+     * Description of /clear
+     */
+    @Override
+    public String getDescription(Context context)
+    {
+        return context.getString(R.string.command_desc_clear);
+    }
+}

app/src/main/java/org/yaaic/fragment/ConversationFragment.java

@@ -298,6 +298,7 @@ public void onResume() {
         getActivity().registerReceiver(channelReceiver, new IntentFilter(Broadcast.CONVERSATION_MESSAGE));
         getActivity().registerReceiver(channelReceiver, new IntentFilter(Broadcast.CONVERSATION_NEW));
         getActivity().registerReceiver(channelReceiver, new IntentFilter(Broadcast.CONVERSATION_REMOVE));
+        getActivity().registerReceiver(channelReceiver, new IntentFilter(Broadcast.CONVERSATION_CLEAR));
         getActivity().registerReceiver(channelReceiver, new IntentFilter(Broadcast.CONVERSATION_TOPIC));
 
         serverReceiver = new ServerReceiver(this);
@@ -548,6 +549,15 @@ public void onRemoveConversation(String target) {
         tabLayout.update();
     }
 
+    @Override
+    public void onClearConversation(String target) {
+        int position = pagerAdapter.getPositionByName(target);
+
+        if (position != -1) {
+            pagerAdapter.updateConversation(position);
+        }
+    }
+
     /**
      * On topic change
      */

app/src/main/java/org/yaaic/listener/ConversationListener.java

@@ -48,10 +48,19 @@ public interface ConversationListener
      */
     public void onRemoveConversation(String target);
 
+    /**
+     * On conversation cleared (for given target)
+     *
+     * @param target
+     */
+    public void onClearConversation(String target);
+
     /**
      * On topic changed (for given target)
      *
      * @param target
      */
     public void onTopicChanged(String target);
+
+
 }

app/src/main/java/org/yaaic/model/Broadcast.java

@@ -35,6 +35,7 @@ public abstract class Broadcast
     public static final String CONVERSATION_MESSAGE    = "org.yaaic.conversation.message";
     public static final String CONVERSATION_NEW        = "org.yaaic.conversation.new";
     public static final String CONVERSATION_REMOVE    = "org.yaaic.conversation.remove";
+    public static final String CONVERSATION_CLEAR      = "org.yaaic.conversation.clear";
     public static final String CONVERSATION_TOPIC    = "org.yaaic.conversation.topic";
 
     /**

app/src/main/java/org/yaaic/model/Conversation.java

@@ -232,4 +232,12 @@ public void setHistorySize(int size)
             history.subList(size, history.size()).clear();
         }
     }
+
+    /**
+     * Clear the message history
+     */
+    public void clearHistory()
+    {
+        history.clear();
+    }
 }

app/src/main/java/org/yaaic/receiver/ConversationReceiver.java

@@ -72,6 +72,8 @@ public void onReceive(Context context, Intent intent)
             listener.onNewConversation(intent.getExtras().getString(Extra.CONVERSATION));
         } else if (action.equals(Broadcast.CONVERSATION_REMOVE)) {
             listener.onRemoveConversation(intent.getExtras().getString(Extra.CONVERSATION));
+        } else if (action.equals(Broadcast.CONVERSATION_CLEAR)) {
+            listener.onClearConversation(intent.getExtras().getString(Extra.CONVERSATION));
         } else if (action.equals(Broadcast.CONVERSATION_TOPIC)) {
             listener.onTopicChanged(intent.getExtras().getString(Extra.CONVERSATION));
         }

app/src/main/res/values/strings.xml

@@ -123,6 +123,7 @@
     <string name="command_desc_topic">Show or change the current topic</string>
     <string name="command_desc_voice">Give a user voice status</string>
     <string name="command_desc_whois">Get information about a user</string>
+    <string name="command_desc_clear">Clear the history of the current window</string>
 
     <string name="notification_running">Yaaic is running</string>
     <string name="notification_not_connected">Not connected</string>