Fixed comma appended to username completion when not at the beginning of the message (#3060)

Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/widgets/helper/ChannelView.cpp

@@ -37,6 +37,7 @@
 #include "singletons/WindowManager.hpp"
 #include "util/Clipboard.hpp"
 #include "util/DistanceBetweenPoints.hpp"
+#include "util/Helpers.hpp"
 #include "util/IncognitoBrowser.hpp"
 #include "util/StreamerMode.hpp"
 #include "util/Twitch.hpp"
@@ -48,6 +49,7 @@
 #include "widgets/helper/EffectLabel.hpp"
 #include "widgets/helper/SearchPopup.hpp"
 #include "widgets/splits/Split.hpp"
+#include "widgets/splits/SplitInput.hpp"
 
 #define DRAW_WIDTH (this->width())
 #define SELECTION_RESUME_SCROLLING_MSG_THRESHOLD 3
@@ -1804,8 +1806,9 @@ void ChannelView::handleMouseClick(QMouseEvent *event,
         }
         break;
         case Qt::RightButton: {
+            auto split = dynamic_cast<Split *>(this->parentWidget());
             auto insertText = [=](QString text) {
-                if (auto split = dynamic_cast<Split *>(this->parentWidget()))
+                if (split)
                 {
                     split->insertTextToInput(text);
                 }
@@ -1815,7 +1818,11 @@ void ChannelView::handleMouseClick(QMouseEvent *event,
             if (link.type == Link::UserInfo)
             {
                 const bool commaMention = getSettings()->mentionUsersWithComma;
-                insertText("@" + link.value + (commaMention ? ", " : " "));
+                const bool isFirstWord =
+                    split && split->getInput().isEditFirstWord();
+                auto userMention =
+                    formatUserMention(link.value, isFirstWord, commaMention);
+                insertText("@" + userMention + " ");
             }
             else if (link.type == Link::UserWhisper)
             {

src/widgets/helper/ResizingTextEdit.cpp

@@ -39,6 +39,19 @@ bool ResizingTextEdit::hasHeightForWidth() const
     return true;
 }
 
+bool ResizingTextEdit::isFirstWord() const
+{
+    QString plainText = this->toPlainText();
+    for (int i = this->textCursor().position(); i >= 0; i--)
+    {
+        if (plainText[i] == ' ')
+        {
+            return false;
+        }
+    }
+    return true;
+};
+
 int ResizingTextEdit::heightForWidth(int) const
 {
     auto margins = this->contentsMargins();
@@ -108,17 +121,6 @@ void ResizingTextEdit::keyPressEvent(QKeyEvent *event)
         }
 
         QString currentCompletionPrefix = this->textUnderCursor();
-        bool isFirstWord = [&] {
-            QString plainText = this->toPlainText();
-            for (int i = this->textCursor().position(); i >= 0; i--)
-            {
-                if (plainText[i] == ' ')
-                {
-                    return false;
-                }
-            }
-            return true;
-        }();
 
         // check if there is something to complete
         if (currentCompletionPrefix.size() <= 1)
@@ -134,7 +136,8 @@ void ResizingTextEdit::keyPressEvent(QKeyEvent *event)
             // First type pressing tab after modifying a message, we refresh our
             // completion model
             this->completer_->setModel(completionModel);
-            completionModel->refresh(currentCompletionPrefix, isFirstWord);
+            completionModel->refresh(currentCompletionPrefix,
+                                     this->isFirstWord());
             this->completionInProgress_ = true;
             this->completer_->setCompletionPrefix(currentCompletionPrefix);
             this->completer_->complete();

src/widgets/helper/ResizingTextEdit.hpp

@@ -15,6 +15,7 @@ public:
     QSize sizeHint() const override;
 
     bool hasHeightForWidth() const override;
+    bool isFirstWord() const;
 
     pajlada::Signals::Signal<QKeyEvent *> keyPressed;
     pajlada::Signals::NoArgSignal focused;

src/widgets/splits/Split.cpp

@@ -306,6 +306,11 @@ ChannelView &Split::getChannelView()
     return *this->view_;
 }
 
+SplitInput &Split::getInput()
+{
+    return *this->input_;
+}
+
 void Split::updateInputPlaceholder()
 {
     if (!this->getChannel()->isTwitchChannel())

src/widgets/splits/Split.hpp

@@ -47,6 +47,7 @@ public:
     pajlada::Signals::NoArgSignal focusLost;
 
     ChannelView &getChannelView();
+    SplitInput &getInput();
 
     IndirectChannel getIndirectChannel();
     ChannelPtr getChannel();

src/widgets/splits/SplitInput.cpp

@@ -8,6 +8,7 @@
 #include "singletons/Settings.hpp"
 #include "singletons/Theme.hpp"
 #include "util/Clamp.hpp"
+#include "util/Helpers.hpp"
 #include "util/LayoutCreator.hpp"
 #include "widgets/Notebook.hpp"
 #include "widgets/Scrollbar.hpp"
@@ -568,8 +569,10 @@ void SplitInput::insertCompletionText(const QString &input_)
         }
         else if (text[i] == '@')
         {
-            input = "@" + input_ +
-                    (getSettings()->mentionUsersWithComma ? ", " : " ");
+            const auto userMention =
+                formatUserMention(input_, edit.isFirstWord(),
+                                  getSettings()->mentionUsersWithComma);
+            input = "@" + userMention + " ";
             done = true;
         }
 
@@ -595,6 +598,11 @@ void SplitInput::clearSelection()
     this->ui_.textEdit->setTextCursor(c);
 }
 
+bool SplitInput::isEditFirstWord() const
+{
+    return this->ui_.textEdit->isFirstWord();
+}
+
 QString SplitInput::getInputText() const
 {
     return this->ui_.textEdit->toPlainText();

src/widgets/splits/SplitInput.hpp

@@ -28,6 +28,7 @@ public:
     SplitInput(Split *_chatWidget);
 
     void clearSelection();
+    bool isEditFirstWord() const;
     QString getInputText() const;
     void insertText(const QString &text);