ChatCache

Move the functionality to cache the contents of a chat bar from the room directly and to a new ChatCache object. This works pretty much the same with a few extra check and balances, this also made it easy to put a test suite around the functionality so I did. The current functionality should be identical to what exists.

This is in prep for threads which will require managing even more caches if we create one per thread.

src/chatbarcache.cpp

@@ -0,0 +1,153 @@
+// SPDX-FileCopyrightText: 2023 James Graham <james.h.graham@protonmail.com>
+// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+
+#include "chatbarcache.h"
+
+#include "eventhandler.h"
+#include "neochatroom.h"
+
+ChatBarCache::ChatBarCache(QObject *parent)
+    : QObject(parent)
+{
+}
+
+QString ChatBarCache::text() const
+{
+    return m_text;
+}
+
+void ChatBarCache::setText(const QString &text)
+{
+    if (text == m_text) {
+        return;
+    }
+    m_text = text;
+    Q_EMIT textChanged();
+}
+
+bool ChatBarCache::isReplying() const
+{
+    return m_relationType == Reply && !m_relationId.isEmpty();
+}
+
+QString ChatBarCache::replyId() const
+{
+    if (m_relationType != Reply) {
+        return {};
+    }
+    return m_relationId;
+}
+
+void ChatBarCache::setReplyId(const QString &replyId)
+{
+    if (m_relationType == Reply && m_relationId == replyId) {
+        return;
+    }
+    m_relationId = replyId;
+    if (m_relationId.isEmpty()) {
+        m_relationType = None;
+    } else {
+        m_relationType = Reply;
+    }
+    m_attachmentPath = QString();
+    Q_EMIT relationIdChanged();
+}
+
+bool ChatBarCache::isEditing() const
+{
+    return m_relationType == Edit && !m_relationId.isEmpty();
+}
+
+QString ChatBarCache::editId() const
+{
+    if (m_relationType != Edit) {
+        return {};
+    }
+    return m_relationId;
+}
+
+void ChatBarCache::setEditId(const QString &editId)
+{
+    if (m_relationType == Edit && m_relationId == editId) {
+        return;
+    }
+    m_relationId = editId;
+    if (m_relationId.isEmpty()) {
+        m_relationType = None;
+    } else {
+        m_relationType = Edit;
+    }
+    m_attachmentPath = QString();
+    Q_EMIT relationIdChanged();
+}
+
+QVariantMap ChatBarCache::relationUser() const
+{
+    if (parent() == nullptr) {
+        qWarning() << "ChatBarCache created with no parent, a NeoChatRoom must be set as the parent on creation.";
+        return {};
+    }
+    auto room = dynamic_cast<NeoChatRoom *>(parent());
+    if (room == nullptr) {
+        qWarning() << "ChatBarCache created with incorrect parent, a NeoChatRoom must be set as the parent on creation.";
+        return {};
+    }
+    if (m_relationId.isEmpty()) {
+        return room->getUser(nullptr);
+    }
+    return room->getUser(room->user((*room->findInTimeline(m_relationId))->senderId()));
+}
+
+QString ChatBarCache::relationMessage() const
+{
+    if (parent() == nullptr) {
+        qWarning() << "ChatBarCache created with no parent, a NeoChatRoom must be set as the parent on creation.";
+        return {};
+    }
+    if (m_relationId.isEmpty()) {
+        return {};
+    }
+    auto room = dynamic_cast<NeoChatRoom *>(parent());
+    if (room == nullptr) {
+        qWarning() << "ChatBarCache created with incorrect parent, a NeoChatRoom must be set as the parent on creation.";
+        return {};
+    }
+    EventHandler eventhandler;
+    eventhandler.setRoom(room);
+    if (auto event = room->findInTimeline(m_relationId); event != room->historyEdge()) {
+        eventhandler.setEvent(&**event);
+        return eventhandler.getPlainBody();
+    }
+    return {};
+}
+
+QString ChatBarCache::attachmentPath() const
+{
+    return m_attachmentPath;
+}
+
+void ChatBarCache::setAttachmentPath(const QString &attachmentPath)
+{
+    if (attachmentPath == m_attachmentPath) {
+        return;
+    }
+    m_attachmentPath = attachmentPath;
+    m_relationType = None;
+    m_relationId = QString();
+    Q_EMIT attachmentPathChanged();
+}
+
+QVector<Mention> *ChatBarCache::mentions()
+{
+    return &m_mentions;
+}
+
+QString ChatBarCache::savedText() const
+{
+    return m_savedText;
+}
+
+void ChatBarCache::setSavedText(const QString &savedText)
+{
+    m_savedText = savedText;
+}