Pause chat while hovering. Fixes #208

Also pauses when clicking with double-click-links enabled and while
selecting text

src/messages/limitedqueuesnapshot.hpp

@@ -10,6 +10,11 @@ template <typename T>
 class LimitedQueueSnapshot
 {
 public:
+    LimitedQueueSnapshot()
+        : length(0)
+    {
+    }
+
     LimitedQueueSnapshot(std::shared_ptr<std::vector<std::shared_ptr<std::vector<T>>>> _chunks,
                          size_t _length, size_t _firstChunkOffset, size_t _lastChunkEnd)
         : chunks(_chunks)

src/singletons/settingsmanager.hpp

@@ -50,6 +50,7 @@ public:
     FloatSetting mouseScrollMultiplier = {"/behaviour/mouseScrollMultiplier", 1.0};
     StringSetting streamlinkPath = {"/behaviour/streamlink/path", ""};
     StringSetting preferredQuality = {"/behaviour/streamlink/quality", "Choose"};
+    BoolSetting pauseChatHover = {"/behaviour/pauseChatHover", false};
 
     /// Commands
     BoolSetting allowCommandsAtEnd = {"/commands/allowCommandsAtEnd", false};

src/widgets/helper/channelview.cpp

@@ -26,6 +26,7 @@
 
 #define LAYOUT_WIDTH \
     (this->width() - (this->scrollBar.isVisible() ? 16 : 4) * this->getDpiMultiplier())
+#define PAUSE_TIME 1000
 
 using namespace chatterino::messages;
 
@@ -91,6 +92,8 @@ ChannelView::ChannelView(BaseWidget *parent)
             this->updateTimer.start();
         }
     });
+
+    this->pauseTimeout.setSingleShot(true);
 }
 
 ChannelView::~ChannelView()
@@ -357,7 +360,11 @@ bool ChannelView::getEnableScrollingToBottom() const
 
 messages::LimitedQueueSnapshot<SharedMessageRef> ChannelView::getMessagesSnapshot()
 {
-    return this->messages.getSnapshot();
+    if (!this->paused) {
+        this->snapshot = this->messages.getSnapshot();
+    }
+
+    return this->snapshot;
 }
 
 void ChannelView::setChannel(std::shared_ptr<Channel> newChannel)
@@ -446,6 +453,13 @@ void ChannelView::detachChannel()
     this->messageRemovedConnection.disconnect();
 }
 
+void ChannelView::pause(int msecTimeout)
+{
+    this->paused = true;
+
+    this->pauseTimeout.start(msecTimeout);
+}
+
 void ChannelView::resizeEvent(QResizeEvent *)
 {
     this->scrollBar.resize(this->scrollBar.width(), height());
@@ -882,8 +896,22 @@ void ChannelView::wheelEvent(QWheelEvent *event)
     }
 }
 
+void ChannelView::enterEvent(QEvent *)
+{
+    //    this->pause(PAUSE_TIME);
+}
+
+void ChannelView::leaveEvent(QEvent *)
+{
+    this->paused = false;
+}
+
 void ChannelView::mouseMoveEvent(QMouseEvent *event)
 {
+    if (singletons::SettingManager::getInstance().pauseChatHover.getValue()) {
+        this->pause(300);
+    }
+
     auto tooltipWidget = TooltipWidget::getInstance();
     std::shared_ptr<messages::MessageRef> message;
     QPoint relativePos;
@@ -896,6 +924,16 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
         return;
     }
 
+    // is selecting
+    if (this->selecting) {
+        this->pause(500);
+        int index = message->getSelectionIndex(relativePos);
+
+        this->setSelection(this->selection.start, SelectionItem(messageIndex, index));
+
+        this->queueUpdate();
+    }
+
     // message under cursor is collapsed
     if (message->isCollapsed()) {
         this->setCursor(Qt::PointingHandCursor);
@@ -903,15 +941,6 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
         return;
     }
 
-    // is selecting
-    if (this->selecting) {
-        int index = message->getSelectionIndex(relativePos);
-
-        this->setSelection(this->selection.start, SelectionItem(messageIndex, index));
-
-        this->repaint();
-    }
-
     // check if word underneath cursor
     const messages::Word *hoverWord;
     if ((hoverWord = message->tryGetWordPart(relativePos)) == nullptr) {
@@ -937,6 +966,10 @@ void ChannelView::mouseMoveEvent(QMouseEvent *event)
 
 void ChannelView::mousePressEvent(QMouseEvent *event)
 {
+    if (singletons::SettingManager::getInstance().linksDoubleClickOnly.getValue()) {
+        this->pause(200);
+    }
+
     this->isMouseDown = true;
 
     this->lastPressPosition = event->screenPos();
@@ -989,6 +1022,10 @@ void ChannelView::mouseReleaseEvent(QMouseEvent *event)
         return;
     }
 
+    if (this->selecting) {
+        this->paused = false;
+    }
+
     this->isMouseDown = false;
     this->selecting = false;
 

src/widgets/helper/channelview.hpp

@@ -39,6 +39,7 @@ public:
     void clearSelection();
     void setEnableScrollingToBottom(bool);
     bool getEnableScrollingToBottom() const;
+    void pause(int msecTimeout);
 
     void setChannel(std::shared_ptr<Channel> channel);
     messages::LimitedQueueSnapshot<messages::SharedMessageRef> getMessagesSnapshot();
@@ -56,6 +57,9 @@ protected:
     virtual void paintEvent(QPaintEvent *) override;
     virtual void wheelEvent(QWheelEvent *event) override;
 
+    virtual void enterEvent(QEvent *) override;
+    virtual void leaveEvent(QEvent *) override;
+
     virtual void mouseMoveEvent(QMouseEvent *event) override;
     virtual void mousePressEvent(QMouseEvent *event) override;
     virtual void mouseReleaseEvent(QMouseEvent *event) override;
@@ -72,6 +76,10 @@ private:
     QTimer updateTimer;
     bool updateQueued = false;
     bool messageWasAdded = false;
+    bool paused = false;
+    QTimer pauseTimeout;
+
+    messages::LimitedQueueSnapshot<messages::SharedMessageRef> snapshot;
 
     void detachChannel();
     void actuallyLayoutMessages();

src/widgets/settingsdialog.cpp

@@ -327,15 +327,27 @@ QVBoxLayout *SettingsDialog::createBehaviourTab()
 
     auto form = new QFormLayout();
 
-    form->addRow("Window:",
+    // WINDOW
-                 createCheckbox("Window always on top (requires restart)", settings.windowTopMost));
+    {
+        form->addRow("Window:", createCheckbox("Window always on top (requires restart)",
+                                               settings.windowTopMost));
         //        form->addRow("Messages:", createCheckbox("Mention users with a @ (except in
         //        commands)",
         //                                                 settings.mentionUsersWithAt));
-    form->addRow("Messages:", createCheckbox("Hide input box if empty", settings.hideEmptyInput));
+    }
-    form->addRow(
+    // MESSAGES
-        "", createCheckbox("Show last read message indicator", settings.showLastMessageIndicator));
+    {
-
+        form->addRow("Messages:",
+                     createCheckbox("Hide input box if empty", settings.hideEmptyInput));
+        form->addRow("", createCheckbox("Show last read message indicator",
+                                        settings.showLastMessageIndicator));
+    }
+    // PAUSE
+    {
+        form->addRow("Pause chat:", createCheckbox("When hovering", settings.pauseChatHover));
+    }
+    // MOUSE SCROLL SPEED
+    {
         auto scroll = new QSlider(Qt::Horizontal);
         form->addRow("Mouse scroll speed:", scroll);
 
@@ -348,7 +360,9 @@ QVBoxLayout *SettingsDialog::createBehaviourTab()
             float newScrollValue = (mul * 2.1f) + 0.1f;
             singletons::SettingManager::getInstance().mouseScrollMultiplier = newScrollValue;
         });
-
+    }
+    // STREAMLINK
+    {
         form->addRow("Streamlink path:", createLineEdit(settings.streamlinkPath));
         form->addRow(this->createCombobox(
             "Preferred quality:", settings.preferredQuality,
@@ -356,6 +370,7 @@ QVBoxLayout *SettingsDialog::createBehaviourTab()
             [](const QString &newValue, pajlada::Settings::Setting<std::string> &setting) {
                 setting = newValue.toStdString();
             }));
+    }
 
     layout->addLayout(form);