Link Previewer MXC Links

- Update link preview to get valid mxc links.
- Get the connection from a room.

src/linkpreviewer.cpp

@@ -3,11 +3,11 @@
 
 #include "linkpreviewer.h"
 
-#include "controller.h"
-
 #include <connection.h>
 #include <csapi/content-repo.h>
 
+#include "neochatroom.h"
+
 using namespace Quotient;
 
 LinkPreviewer::LinkPreviewer(QObject *parent)
@@ -16,6 +16,20 @@ LinkPreviewer::LinkPreviewer(QObject *parent)
 {
 }
 
+NeoChatRoom *LinkPreviewer::room() const
+{
+    return m_currentRoom;
+}
+
+void LinkPreviewer::setRoom(NeoChatRoom *room)
+{
+    if (room == m_currentRoom) {
+        return;
+    }
+    m_currentRoom = room;
+    Q_EMIT roomChanged();
+}
+
 bool LinkPreviewer::loaded() const
 {
     return m_loaded;
@@ -31,7 +45,7 @@ QString LinkPreviewer::description() const
     return m_description;
 }
 
-QString LinkPreviewer::imageSource() const
+QUrl LinkPreviewer::imageSource() const
 {
     return m_imageSource;
 }
@@ -50,15 +64,28 @@ void LinkPreviewer::setUrl(QUrl url)
         m_url = url;
         Q_EMIT urlChanged();
 
-        auto conn = Controller::instance().activeConnection();
-
+        auto conn = m_currentRoom->connection();
         GetUrlPreviewJob *job = conn->callApi<GetUrlPreviewJob>(m_url.toString());
 
-        connect(job, &BaseJob::success, this, [this, job]() {
+        connect(job, &BaseJob::success, this, [this, job, conn]() {
             const auto json = job->jsonData();
             m_title = json["og:title"].toString().trimmed();
             m_description = json["og:description"].toString().trimmed().replace("\n", " ");
-            m_imageSource = json["og:image"].toString();
+
+            auto imageUrl = QUrl(json["og:image"].toString());
+            if (imageUrl.isValid() && imageUrl.scheme() == QStringLiteral("mxc")) {
+#ifdef QUOTIENT_07
+                m_imageSource = conn->makeMediaUrl(imageUrl);
+#else
+                QUrlQuery q(imageUrl.query());
+                q.addQueryItem(QStringLiteral("user_id"), conn->userId());
+                imageUrl.setQuery(q);
+                m_imageSource = imageUrl;
+#endif
+            } else {
+                m_imageSource = QUrl();
+            }
+
             m_loaded = true;
             Q_EMIT titleChanged();
             Q_EMIT descriptionChanged();