From 115031b7ace10d803aaaf8ea5784ac942db77b33 Mon Sep 17 00:00:00 2001
From: Rasmus Karlsson <rasmus.karlsson@pajlada.com>
Date: Fri, 22 Jun 2018 21:44:02 +0000
Subject: [PATCH] Clearchat now disables previous messages

Fix #499
---
 src/channel.cpp                            | 14 ++++++++++++++
 src/channel.hpp                            |  1 +
 src/providers/twitch/ircmessagehandler.cpp |  1 +
 3 files changed, 16 insertions(+)

diff --git a/src/channel.cpp b/src/channel.cpp
index b17555c9..4000662b 100644
--- a/src/channel.cpp
+++ b/src/channel.cpp
@@ -150,6 +150,20 @@ void Channel::addOrReplaceTimeout(messages::MessagePtr message)
     // WindowManager::getInstance().repaintVisibleChatWidgets(this);
 }
 
+void Channel::disableAllMessages()
+{
+    LimitedQueueSnapshot<MessagePtr> snapshot = this->getMessageSnapshot();
+    int snapshotLength = snapshot.getLength();
+    for (int i = 0; i < snapshotLength; i++) {
+        auto &s = snapshot[i];
+        if (s->flags & Message::System || s->flags & Message::Timeout) {
+            continue;
+        }
+
+        s->flags.EnableFlag(Message::Disabled);
+    }
+}
+
 void Channel::addMessagesAtStart(std::vector<messages::MessagePtr> &_messages)
 {
     std::vector<messages::MessagePtr> addedMessages = this->messages.pushFront(_messages);
diff --git a/src/channel.hpp b/src/channel.hpp
index 5a46c8f1..2c8e57f6 100644
--- a/src/channel.hpp
+++ b/src/channel.hpp
@@ -51,6 +51,7 @@ public:
     void addMessage(messages::MessagePtr message);
     void addMessagesAtStart(std::vector<messages::MessagePtr> &messages);
     void addOrReplaceTimeout(messages::MessagePtr message);
+    void disableAllMessages();
     void replaceMessage(messages::MessagePtr message, messages::MessagePtr replacement);
     virtual void addRecentChatter(const std::shared_ptr<messages::Message> &message);
 
diff --git a/src/providers/twitch/ircmessagehandler.cpp b/src/providers/twitch/ircmessagehandler.cpp
index eaecb74b..7afa1a64 100644
--- a/src/providers/twitch/ircmessagehandler.cpp
+++ b/src/providers/twitch/ircmessagehandler.cpp
@@ -150,6 +150,7 @@ void IrcMessageHandler::handleClearChatMessage(Communi::IrcMessage *message)
 
     // check if the chat has been cleared by a moderator
     if (message->parameters().length() == 1) {
+        chan->disableAllMessages();
         chan->addMessage(Message::createSystemMessage("Chat has been cleared by a moderator."));
 
         return;