turning a lot of includes into forward declares

src/widgets/dialogs/EmotePopup.cpp

@@ -3,9 +3,12 @@
 #include "Application.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "debug/Benchmark.hpp"
+#include "messages/Message.hpp"
 #include "messages/MessageBuilder.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
+#include "singletons/Emotes.hpp"
 #include "widgets/Notebook.hpp"
+#include "widgets/helper/ChannelView.hpp"
 
 #include <QHBoxLayout>
 #include <QShortcut>

src/widgets/dialogs/EmotePopup.hpp

@@ -1,13 +1,16 @@
 #pragma once
 
-#include "common/Channel.hpp"
 #include "widgets/BaseWindow.hpp"
-#include "widgets/helper/ChannelView.hpp"
 
 #include <pajlada/signals/signal.hpp>
 
 namespace chatterino {
 
+class Link;
+class ChannelView;
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+
 class EmotePopup : public BaseWindow
 {
 public:

src/widgets/dialogs/LoginDialog.cpp

@@ -1,5 +1,6 @@
 #include "widgets/dialogs/LoginDialog.hpp"
 
+#include "Application.hpp"
 #include "common/Common.hpp"
 #include "common/NetworkRequest.hpp"
 #include "controllers/accounts/AccountController.hpp"

src/widgets/dialogs/LogsPopup.cpp

@@ -1,6 +1,7 @@
 #include "LogsPopup.hpp"
 
 #include "IrcMessage"
+#include "common/Channel.hpp"
 #include "common/NetworkRequest.hpp"
 #include "providers/twitch/TwitchChannel.hpp"
 #include "providers/twitch/TwitchMessageBuilder.hpp"
@@ -14,6 +15,7 @@
 namespace chatterino {
 
 LogsPopup::LogsPopup()
+    : channel_(Channel::getEmpty())
 {
     this->initLayout();
     this->resize(400, 600);

src/widgets/dialogs/LogsPopup.hpp

@@ -1,6 +1,5 @@
 #pragma once
 
-#include "common/Channel.hpp"
 #include "widgets/BaseWindow.hpp"
 
 namespace chatterino {
@@ -8,6 +7,12 @@ namespace chatterino {
 class Channel;
 class ChannelView;
 
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+
+struct Message;
+using MessagePtr = std::shared_ptr<const Message>;
+
 class LogsPopup : public BaseWindow
 {
 public:
@@ -17,7 +22,7 @@ public:
 
 private:
     ChannelView *channelView_ = nullptr;
-    ChannelPtr channel_ = Channel::getEmpty();
+    ChannelPtr channel_;
 
     QString userName_;
     int roomID_;

src/widgets/dialogs/NotificationPopup.cpp

@@ -1,5 +1,7 @@
 #include "NotificationPopup.hpp"
 
+#include "common/Channel.hpp"
+#include "messages/Message.hpp"
 #include "widgets/helper/ChannelView.hpp"
 
 #include <QApplication>

src/widgets/dialogs/NotificationPopup.hpp

@@ -1,13 +1,17 @@
 #pragma once
 
-#include "common/Channel.hpp"
-#include "messages/Message.hpp"
 #include "widgets/BaseWindow.hpp"
 
 namespace chatterino {
 
 class ChannelView;
 
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
+
+struct Message;
+using MessagePtr = std::shared_ptr<const Message>;
+
 class NotificationPopup : public BaseWindow
 {
 public:

src/widgets/dialogs/SelectChannelDialog.cpp

@@ -2,8 +2,10 @@
 
 #include "Application.hpp"
 #include "providers/twitch/TwitchServer.hpp"
+#include "singletons/Theme.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/Notebook.hpp"
+#include "widgets/helper/NotebookTab.hpp"
 
 #include <QDialogButtonBox>
 #include <QGroupBox>

src/widgets/dialogs/SelectChannelDialog.hpp

@@ -1,8 +1,8 @@
 #pragma once
 
+#include "Application.hpp"
 #include "common/Channel.hpp"
 #include "widgets/BaseWindow.hpp"
-#include "widgets/Notebook.hpp"
 
 #include <pajlada/signals/signal.hpp>
 
@@ -11,7 +11,9 @@
 
 namespace chatterino {
 
-class SelectChannelDialog : public BaseWindow
+class Notebook;
+
+class SelectChannelDialog final : public BaseWindow
 {
 public:
     SelectChannelDialog(QWidget *parent = nullptr);

src/widgets/dialogs/UserInfoPopup.cpp

@@ -1,6 +1,7 @@
 #include "UserInfoPopup.hpp"
 
 #include "Application.hpp"
+#include "common/Channel.hpp"
 #include "common/NetworkRequest.hpp"
 #include "controllers/accounts/AccountController.hpp"
 #include "controllers/highlights/HighlightController.hpp"

src/widgets/dialogs/UserInfoPopup.hpp

@@ -1,6 +1,5 @@
 #pragma once
 
-#include "common/Channel.hpp"
 #include "widgets/BaseWindow.hpp"
 
 #include <pajlada/signals/signal.hpp>
@@ -9,6 +8,8 @@ class QCheckBox;
 
 namespace chatterino {
 
+class Channel;
+using ChannelPtr = std::shared_ptr<Channel>;
 class Label;
 
 class UserInfoPopup final : public BaseWindow