fix(channel-view): use underlyingChannel_ over channel_

CHANGELOG.md

@@ -109,6 +109,7 @@
 - Bugfix: Fixed the "Cancel" button in the settings dialog only working after opening the settings dialog twice. (#5229)
 - Bugfix: Fixed split header tooltips showing in the wrong position on Windows. (#5230)
 - Bugfix: Fixed split header tooltips appearing too tall. (#5232)
+- Bugfix: Fixed past messages not showing in the search popup after adding a channel. (#5248)
 - Dev: Run miniaudio in a separate thread, and simplify it to not manage the device ourselves. There's a chance the simplification is a bad idea. (#4978)
 - Dev: Change clang-format from v14 to v16. (#4929)
 - Dev: Fixed UTF16 encoding of `modes` file for the installer. (#4791)

src/widgets/helper/ChannelView.cpp

@@ -453,7 +453,8 @@ void ChannelView::initializeSignals()
     this->signalHolder_.managedConnect(
         getIApp()->getWindows()->layoutRequested, [&](Channel *channel) {
             if (this->isVisible() &&
-                (channel == nullptr || this->channel_.get() == channel))
+                (channel == nullptr ||
+                 this->underlyingChannel_.get() == channel))
             {
                 this->queueLayout();
             }
@@ -463,7 +464,8 @@ void ChannelView::initializeSignals()
         getIApp()->getWindows()->invalidateBuffersRequested,
         [this](Channel *channel) {
             if (this->isVisible() &&
-                (channel == nullptr || this->channel_.get() == channel))
+                (channel == nullptr ||
+                 this->underlyingChannel_.get() == channel))
             {
                 this->invalidateBuffers();
             }
@@ -975,6 +977,41 @@ void ChannelView::setChannel(const ChannelPtr &underlyingChannel)
             this->channel_->fillInMissingMessages(filtered);
         });
 
+    // Copy over messages from the backing channel to the filtered one
+    // and the ui.
+    auto snapshot = underlyingChannel->getMessageSnapshot();
+
+    this->scrollBar_->setMaximum(qreal(snapshot.size()));
+
+    for (const auto &msg : snapshot)
+    {
+        if (!this->shouldIncludeMessage(msg))
+        {
+            continue;
+        }
+
+        auto messageLayout = std::make_shared<MessageLayout>(msg);
+
+        if (this->lastMessageHasAlternateBackground_)
+        {
+            messageLayout->flags.set(MessageLayoutFlag::AlternateBackground);
+        }
+        this->lastMessageHasAlternateBackground_ =
+            !this->lastMessageHasAlternateBackground_;
+
+        if (underlyingChannel->shouldIgnoreHighlights())
+        {
+            messageLayout->flags.set(MessageLayoutFlag::IgnoreHighlights);
+        }
+
+        this->messages_.pushBack(messageLayout);
+        this->channel_->addMessage(msg);
+        if (this->showScrollbarHighlights())
+        {
+            this->scrollBar_->addHighlight(msg->getScrollBarHighlight());
+        }
+    }
+
     //
     // Standard channel connections
     //
@@ -1006,33 +1043,6 @@ void ChannelView::setChannel(const ChannelPtr &underlyingChannel)
                                                  this->messagesUpdated();
                                              });
 
-    auto snapshot = underlyingChannel->getMessageSnapshot();
-
-    this->scrollBar_->setMaximum(qreal(snapshot.size()));
-
-    for (const auto &msg : snapshot)
-    {
-        auto messageLayout = std::make_shared<MessageLayout>(msg);
-
-        if (this->lastMessageHasAlternateBackground_)
-        {
-            messageLayout->flags.set(MessageLayoutFlag::AlternateBackground);
-        }
-        this->lastMessageHasAlternateBackground_ =
-            !this->lastMessageHasAlternateBackground_;
-
-        if (underlyingChannel->shouldIgnoreHighlights())
-        {
-            messageLayout->flags.set(MessageLayoutFlag::IgnoreHighlights);
-        }
-
-        this->messages_.pushBack(messageLayout);
-        if (this->showScrollbarHighlights())
-        {
-            this->scrollBar_->addHighlight(msg->getScrollBarHighlight());
-        }
-    }
-
     this->underlyingChannel_ = underlyingChannel;
 
     this->performLayout();
@@ -2991,10 +3001,6 @@ void ChannelView::setInputReply(const MessagePtr &message)
         // Message did not already have a thread attached, try to find or create one
         auto *tc =
             dynamic_cast<TwitchChannel *>(this->underlyingChannel_.get());
-        if (!tc)
-        {
-            tc = dynamic_cast<TwitchChannel *>(this->channel_.get());
-        }
 
         if (tc)
         {

src/widgets/helper/ChannelView.hpp

@@ -139,15 +139,32 @@ class ChannelView final : public BaseWidget
 
     MessageElementFlags getFlags() const;
 
+    /// @brief The virtual channel used to display messages
+    ///
+    /// This channel contains all messages in this view and respects the
+    /// filter settings. It will always be of type Channel, not TwitchChannel
+    /// nor IrcChannel.
+    /// It's **not** equal to the channel passed in #setChannel().
     ChannelPtr channel();
+
+    /// Set the channel this view is displaying
     void setChannel(const ChannelPtr &underlyingChannel);
 
     void setFilters(const QList<QUuid> &ids);
     QList<QUuid> getFilterIds() const;
     FilterSetPtr getFilterSet() const;
 
+    /// @brief The channel this is derived from
+    ///
+    /// In case of "nested" channel views such as in user popups,
+    /// this channel is set to the original channel the messages came from,
+    /// which is used to open user popups from this view.
+    /// It's not always set.
+    /// @see #hasSourceChannel()
     ChannelPtr sourceChannel() const;
+    /// Setter for #sourceChannel()
     void setSourceChannel(ChannelPtr sourceChannel);
+    /// Checks if this view has a #sourceChannel
     bool hasSourceChannel() const;
 
     LimitedQueueSnapshot<MessageLayoutPtr> &getMessagesSnapshot();
@@ -300,8 +317,31 @@ class ChannelView final : public BaseWidget
     ThreadGuard snapshotGuard_;
     LimitedQueueSnapshot<MessageLayoutPtr> snapshot_;
 
+    /// @brief The backing (internal) channel
+    ///
+    /// This is a "virtual" channel where all filtered messages from
+    /// @a underlyingChannel_ are added to. It contains messages visible on
+    /// screen and will always be a @a Channel, or, it will never be a
+    /// TwitchChannel or IrcChannel, however, it will have the same type and
+    /// name as @a underlyingChannel_. It's not know to any registry/server.
     ChannelPtr channel_ = nullptr;
+
+    /// @brief The channel receiving messages
+    ///
+    /// This channel is the one passed in #setChannel(). It's known to the
+    /// respective registry (e.g. TwitchIrcServer). For Twitch channels for
+    /// example, this will be an instance of TwitchChannel. This channel might
+    /// contain more messages than visible if filters are active.
     ChannelPtr underlyingChannel_ = nullptr;
+
+    /// @brief The channel @a underlyingChannel_ is derived from
+    ///
+    /// In case of "nested" channel views such as in user popups,
+    /// this channel is set to the original channel the messages came from,
+    /// which is used to open user popups from this view.
+    ///
+    /// @see #sourceChannel()
+    /// @see #hasSourceChannel()
     ChannelPtr sourceChannel_ = nullptr;
     Split *split_;