Added placeholder for Split's textEdit (#2143)

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## Unversioned
 
+- Minor: Added placeholder text for message text input box. (#2143)
 - Minor: Added support for FrankerFaceZ badges. (#2101, part of #1658)
 - Minor: Added a navigation list to the settings and reordered them.
 - Major: Added "Channel Filters". See https://wiki.chatterino.com/Filters/ for how they work or how to configure them. (#1748, #2083)

src/widgets/splits/Split.cpp

@@ -1,5 +1,6 @@
 #include "widgets/splits/Split.hpp"
 
+#include "Application.hpp"
 #include "common/Common.hpp"
 #include "common/Env.hpp"
 #include "common/NetworkRequest.hpp"
@@ -132,6 +133,11 @@ Split::Split(QWidget *parent)
 
     this->input_->ui_.textEdit->installEventFilter(parent);
 
+    this->signalHolder_.managedConnect(
+        getApp()->accounts->twitch.currentUserChanged,
+        [this] { this->onAccountSelected(); });
+    this->onAccountSelected();
+
     this->view_->mouseDown.connect([this](QMouseEvent *) {  //
         this->giveFocus(Qt::MouseFocusReason);
     });
@@ -275,6 +281,25 @@ void Split::setContainer(SplitContainer *container)
     this->container_ = container;
 }
 
+void Split::onAccountSelected()
+{
+    auto user = getApp()->accounts->twitch.getCurrent();
+    QString placeholderText;
+
+    if (user->isAnon())
+    {
+        placeholderText = "Log in to send messages...";
+    }
+    else
+    {
+        placeholderText =
+            QString("Send message as %1...")
+                .arg(getApp()->accounts->twitch.getCurrent()->getUserName());
+    }
+
+    this->input_->ui_.textEdit->setPlaceholderText(placeholderText);
+}
+
 IndirectChannel Split::getIndirectChannel()
 {
     return this->channel_;

src/widgets/splits/Split.hpp

@@ -3,6 +3,7 @@
 #include "common/Aliases.hpp"
 #include "common/Channel.hpp"
 #include "common/NullablePtr.hpp"
+#include "pajlada/signals/signalholder.hpp"
 #include "widgets/BaseWidget.hpp"
 
 #include <QFont>
@@ -95,6 +96,7 @@ protected:
 private:
     void channelNameUpdated(const QString &newChannelName);
     void handleModifiers(Qt::KeyboardModifiers modifiers);
+    void onAccountSelected();
 
     SplitContainer *container_;
     IndirectChannel channel_;
@@ -118,6 +120,7 @@ private:
     pajlada::Signals::Connection roomModeChangedConnection_;
 
     pajlada::Signals::Connection indirectChannelChangedConnection_;
+    pajlada::Signals::SignalHolder signalHolder_;
 
     std::vector<pajlada::Signals::ScopedConnection> managedConnections_;