IRCClient: Refactor window creation responsibilities.

IRCChannel and IRCQuery objects now create their own windows with the
help of an aid_create_window callback provided by IRCAppWindow.

There's still a bit of murk but this is already an improvement.

Applications/IRCClient/IRCAppWindow.cpp

@@ -17,10 +17,11 @@ IRCAppWindow::IRCAppWindow()
 {
     set_title(String::format("IRC Client: %s@%s:%d", m_client.nickname().characters(), m_client.hostname().characters(), m_client.port()));
     set_rect(200, 200, 600, 400);
-    setup_client();
     setup_actions();
     setup_menus();
     setup_widgets();
+
+    setup_client();
 }
 
 IRCAppWindow::~IRCAppWindow()
@@ -29,22 +30,14 @@ IRCAppWindow::~IRCAppWindow()
 
 void IRCAppWindow::setup_client()
 {
+    m_client.aid_create_window = [this] (void* owner, IRCWindow::Type type, const String& name) -> IRCWindow* {
+        return &create_window(owner, type, name);
+    };
+
     m_client.on_connect = [this] {
         m_client.join_channel("#test");
     };
 
-    m_client.on_channel_message = [this] (const String& channel_name) {
-        ensure_window(IRCWindow::Channel, channel_name);
-    };
-
-    m_client.on_join = [this] (const String& channel_name) {
-        ensure_window(IRCWindow::Channel, channel_name);
-    };
-
-    m_client.on_query_message = [this] (const String& name) {
-        ensure_window(IRCWindow::Query, name);
-    };
-
     m_client.connect();
 }
 
@@ -129,20 +122,10 @@ void IRCAppWindow::setup_widgets()
 
     m_container = new GStackWidget(horizontal_container);
 
-    create_subwindow(IRCWindow::Server, "Server");
+    create_window(&m_client, IRCWindow::Server, "Server");
 }
 
-IRCWindow& IRCAppWindow::create_subwindow(IRCWindow::Type type, const String& name)
+IRCWindow& IRCAppWindow::create_window(void* owner, IRCWindow::Type type, const String& name)
 {
-    return *new IRCWindow(m_client, type, name, m_container);
-}
-
-IRCWindow& IRCAppWindow::ensure_window(IRCWindow::Type type, const String& name)
-{
-    for (int i = 0; i < m_client.window_count(); ++i) {
-        auto& window = m_client.window_at(i);
-        if (window.name() == name)
-            return window;
-    }
-    return create_subwindow(type, name);
+    return *new IRCWindow(m_client, owner, type, name, m_container);
 }

Applications/IRCClient/IRCAppWindow.h

@@ -19,8 +19,7 @@ private:
     void setup_menus();
     void setup_widgets();
 
-    IRCWindow& create_subwindow(IRCWindow::Type, const String& name);
-    IRCWindow& ensure_window(IRCWindow::Type, const String& name);
+    IRCWindow& create_window(void* owner, IRCWindow::Type, const String& name);
 
     IRCClient m_client;
 

Applications/IRCClient/IRCChannel.cpp

@@ -10,6 +10,8 @@ IRCChannel::IRCChannel(IRCClient& client, const String& name)
     , m_log(IRCLogBuffer::create())
 {
     m_member_model = new IRCChannelMemberListModel(*this);
+    m_window = m_client.aid_create_window(this, IRCWindow::Channel, m_name);
+    m_window->set_log_buffer(*m_log);
 }
 
 IRCChannel::~IRCChannel()

Applications/IRCClient/IRCChannel.h

@@ -9,6 +9,7 @@
 
 class IRCClient;
 class IRCChannelMemberListModel;
+class IRCWindow;
 
 class IRCChannel : public Retainable<IRCChannel> {
 public:
@@ -38,6 +39,9 @@ public:
     int member_count() const { return m_members.size(); }
     String member_at(int i) { return m_members[i].name; }
 
+    IRCWindow& window() { return *m_window; }
+    const IRCWindow& window() const { return *m_window; }
+
 private:
     IRCChannel(IRCClient&, const String&);
 
@@ -52,4 +56,5 @@ private:
 
     Retained<IRCLogBuffer> m_log;
     IRCChannelMemberListModel* m_member_model { nullptr };
+    IRCWindow* m_window { nullptr };
 };

Applications/IRCClient/IRCClient.cpp

@@ -306,15 +306,11 @@ void IRCClient::handle_privmsg(const Message& msg)
         auto it = m_channels.find(target);
         if (it != m_channels.end()) {
             (*it).value->add_message(sender_prefix, sender_nick, msg.arguments[1]);
-            if (on_channel_message)
-                on_channel_message(target);
             return;
         }
     }
     auto& query = ensure_query(sender_nick);
     query.add_message(sender_prefix, sender_nick, msg.arguments[1]);
-    if (on_query_message)
-        on_query_message(sender_nick);
 }
 
 IRCQuery& IRCClient::ensure_query(const String& name)
@@ -353,8 +349,6 @@ void IRCClient::handle_join(const Message& msg)
         return;
     auto& channel_name = msg.arguments[0];
     ensure_channel(channel_name);
-    if (on_join)
-        on_join(channel_name);
 }
 
 void IRCClient::handle_namreply(const Message& msg)
@@ -389,13 +383,6 @@ void IRCClient::register_subwindow(IRCWindow& subwindow)
     if (subwindow.type() == IRCWindow::Server) {
         m_server_subwindow = &subwindow;
         subwindow.set_log_buffer(*m_log);
-    } else if (subwindow.type() == IRCWindow::Channel) {
-        auto it = m_channels.find(subwindow.name());
-        ASSERT(it != m_channels.end());
-        auto& channel = *(*it).value;
-        subwindow.set_log_buffer(channel.log());
-    } else if (subwindow.type() == IRCWindow::Query) {
-        subwindow.set_log_buffer(ensure_query(subwindow.name()).log());
     }
     m_windows.append(&subwindow);
     m_client_window_list_model->update();

Applications/IRCClient/IRCClient.h

@@ -5,10 +5,10 @@
 #include <AK/CircularQueue.h>
 #include <AK/Function.h>
 #include "IRCLogBuffer.h"
+#include "IRCWindow.h"
 
 class IRCChannel;
 class IRCQuery;
-class IRCWindow;
 class IRCWindowListModel;
 class GNotifier;
 
@@ -32,11 +32,10 @@ public:
 
     Function<void()> on_connect;
     Function<void()> on_disconnect;
-    Function<void(const String& channel)> on_channel_message;
-    Function<void(const String& name)> on_query_message;
-    Function<void(const String& channel)> on_join;
     Function<void()> on_server_message;
 
+    Function<IRCWindow*(void*, IRCWindow::Type, const String&)> aid_create_window;
+
     void register_subwindow(IRCWindow&);
     void unregister_subwindow(IRCWindow&);
 

Applications/IRCClient/IRCQuery.cpp

@@ -8,6 +8,8 @@ IRCQuery::IRCQuery(IRCClient& client, const String& name)
     , m_name(name)
     , m_log(IRCLogBuffer::create())
 {
+    m_window = m_client.aid_create_window(this, IRCWindow::Query, m_name);
+    m_window->set_log_buffer(*m_log);
 }
 
 IRCQuery::~IRCQuery()

Applications/IRCClient/IRCQuery.h

@@ -8,6 +8,7 @@
 #include "IRCLogBuffer.h"
 
 class IRCClient;
+class IRCWindow;
 
 class IRCQuery : public Retainable<IRCQuery> {
 public:
@@ -24,11 +25,15 @@ public:
 
     void say(const String&);
 
+    IRCWindow& window() { return *m_window; }
+    const IRCWindow& window() const { return *m_window; }
+
 private:
     IRCQuery(IRCClient&, const String& name);
 
     IRCClient& m_client;
     String m_name;
+    IRCWindow* m_window { nullptr };
 
     Retained<IRCLogBuffer> m_log;
 };

Applications/IRCClient/IRCWindow.cpp

@@ -8,9 +8,10 @@
 #include <LibGUI/GTextEditor.h>
 #include <LibGUI/GTextBox.h>
 
-IRCWindow::IRCWindow(IRCClient& client, Type type, const String& name, GWidget* parent)
+IRCWindow::IRCWindow(IRCClient& client, void* owner, Type type, const String& name, GWidget* parent)
     : GWidget(parent)
     , m_client(client)
+    , m_owner(owner)
     , m_type(type)
     , m_name(name)
 {
@@ -31,7 +32,7 @@ IRCWindow::IRCWindow(IRCClient& client, Type type, const String& name, GWidget*
         member_view->set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
         member_view->set_preferred_size({ 100, 0 });
         member_view->set_alternating_row_colors(false);
-        member_view->set_model(OwnPtr<IRCChannelMemberListModel>(m_client.ensure_channel(m_name).member_model()));
+        member_view->set_model(OwnPtr<IRCChannelMemberListModel>(channel().member_model()));
     }
 
     m_text_editor = new GTextEditor(GTextEditor::SingleLine, this);

Applications/IRCClient/IRCWindow.h

@@ -2,7 +2,9 @@
 
 #include <LibGUI/GWidget.h>
 
+class IRCChannel;
 class IRCClient;
+class IRCQuery;
 class IRCLogBuffer;
 class GTableView;
 class GTextEditor;
@@ -15,7 +17,7 @@ public:
         Query,
     };
 
-    explicit IRCWindow(IRCClient&, Type, const String& name, GWidget* parent);
+    IRCWindow(IRCClient&, void* owner, Type, const String& name, GWidget* parent);
     virtual ~IRCWindow() override;
 
     String name() const { return m_name; }
@@ -25,8 +27,15 @@ public:
 
     void set_log_buffer(const IRCLogBuffer&);
 
+    IRCChannel& channel() { return *(IRCChannel*)m_owner; }
+    const IRCChannel& channel() const { return *(const IRCChannel*)m_owner; }
+
+    IRCQuery& query() { return *(IRCQuery*)m_owner; }
+    const IRCQuery& query() const { return *(const IRCQuery*)m_owner; }
+
 private:
     IRCClient& m_client;
+    void* m_owner { nullptr };
     Type m_type;
     String m_name;
     GTableView* m_table_view { nullptr };