Apply all the required styling in cpp

Apply all the required styling to show links, table, spoilers, etc in cpp. This also updates the method of revealing spoilers so now you can click to reveal then click again to hide.

src/messagecontent/models/messagecontentmodel.cpp

@@ -9,6 +9,7 @@
 #include "contentprovider.h"
 #include "enums/messagecomponenttype.h"
 #include "neochatconnection.h"
+#include "texthandler.h"
 
 using namespace Quotient;
 
@@ -17,6 +18,11 @@ MessageContentModel::MessageContentModel(NeoChatRoom *room, MessageContentModel
     , m_room(room)
     , m_eventId(eventId)
 {
+    m_theme = static_cast<Kirigami::Platform::PlatformTheme *>(qmlAttachedPropertiesObject<Kirigami::Platform::PlatformTheme>(this, true));
+    if (m_theme) {
+        connect(m_theme, &Kirigami::Platform::PlatformTheme::colorsChanged, this, &MessageContentModel::updateSpoilers);
+    }
+
     initializeModel();
 }
 
@@ -277,4 +283,40 @@ void MessageContentModel::closeLinkPreview(int row)
     }
 }
 
+void MessageContentModel::updateSpoilers()
+{
+    for (auto it = m_components.begin(); it != m_components.end(); ++it) {
+        updateSpoiler(index(it - m_components.begin()));
+    }
+}
+
+void MessageContentModel::updateSpoiler(const QModelIndex &index)
+{
+    const auto row = index.row();
+    if (row < 0 || row >= rowCount()) {
+        qWarning() << __FUNCTION__ << "called with row" << row << "which does not exist. m_components.size() =" << m_components.size();
+        return;
+    }
+
+    const auto spoilerRevealed = m_components[row].attributes.value("spoilerRevealed"_L1, false).toBool();
+    m_components[row].display = TextHandler::updateSpoilerText(this, m_components[row].display, spoilerRevealed);
+    Q_EMIT dataChanged(index, index, {DisplayRole});
+}
+
+void MessageContentModel::toggleSpoiler(QModelIndex index)
+{
+    const auto row = index.row();
+    if (row < 0 || row >= rowCount()) {
+        qWarning() << __FUNCTION__ << "called with row" << row << "which does not exist. m_components.size() =" << m_components.size();
+        return;
+    }
+    if (m_components[row].type != MessageComponentType::Text) {
+        return;
+    }
+    const auto spoilerRevealed = !m_components[row].attributes.value("spoilerRevealed"_L1, false).toBool();
+    m_components[row].attributes["spoilerRevealed"_L1] = spoilerRevealed;
+    Q_EMIT dataChanged(index, index, {ComponentAttributesRole});
+    updateSpoiler(index);
+}
+
 #include "moc_messagecontentmodel.cpp"