feat: add action "Go to current date"

src/model/chathistory.cpp

@@ -220,6 +220,15 @@ std::vector<IChatLog::DateChatLogIdxPair> ChatHistory::getDateIdxs(const QDate&
     }
 }
 
+std::size_t ChatHistory::size() const
+{
+    if (canUseHistory()) {
+        return history->getNumMessagesForFriend(f.getPublicKey());
+    }
+
+    return sessionChatLog.size();
+}
+
 void ChatHistory::onFileUpdated(const ToxPk& sender, const ToxFile& file)
 {
     if (canUseHistory()) {

src/model/chathistory.h

@@ -42,6 +42,7 @@ public:
     ChatLogIdx getFirstIdx() const override;
     ChatLogIdx getNextIdx() const override;
     std::vector<DateChatLogIdxPair> getDateIdxs(const QDate& startDate, size_t maxDates) const override;
+    std::size_t size() const override;
 
 public slots:
     void onFileUpdated(const ToxPk& sender, const ToxFile& file);

src/model/ichatlog.h

@@ -138,6 +138,8 @@ public:
     virtual std::vector<DateChatLogIdxPair> getDateIdxs(const QDate& startDate,
                                                         size_t maxDates) const = 0;
 
+    virtual std::size_t size() const = 0;
+
 signals:
     void itemUpdated(ChatLogIdx idx);
 };

src/model/sessionchatlog.cpp

@@ -289,6 +289,11 @@ std::vector<IChatLog::DateChatLogIdxPair> SessionChatLog::getDateIdxs(const QDat
     return ret;
 }
 
+std::size_t SessionChatLog::size() const
+{
+    return items.size();
+}
+
 void SessionChatLog::insertMessageAtIdx(ChatLogIdx idx, ToxPk sender, QString senderName,
                                         ChatLogMessage message)
 {

src/model/sessionchatlog.h

@@ -45,6 +45,7 @@ public:
     ChatLogIdx getFirstIdx() const override;
     ChatLogIdx getNextIdx() const override;
     std::vector<DateChatLogIdxPair> getDateIdxs(const QDate& startDate, size_t maxDates) const override;
+    std::size_t size() const override;
 
     void insertMessageAtIdx(ChatLogIdx idx, ToxPk sender, QString senderName, ChatLogMessage message);
     void insertFileAtIdx(ChatLogIdx idx, ToxPk sender, QString senderName, ChatLogFile file);

src/widget/form/genericchatform.cpp

@@ -328,6 +328,13 @@ GenericChatForm::GenericChatForm(const Contact* contact, IChatLog& chatLog,
     quoteAction = menu.addAction(QIcon(), QString(), this, SLOT(quoteSelectedText()),
                                  QKeySequence(Qt::ALT + Qt::Key_Q));
     addAction(quoteAction);
+
+    menu.addSeparator();
+
+    goCurrentDateAction = menu.addAction(QIcon(), QString(), this, SLOT(goToCurrentDate()),
+                                  QKeySequence(Qt::CTRL + Qt::Key_G));
+    addAction(goCurrentDateAction);
+
     menu.addSeparator();
 
     searchAction = menu.addAction(QIcon(), QString(), this, SLOT(searchFormShow()),
@@ -1004,6 +1011,16 @@ void GenericChatForm::renderMessages(ChatLogIdx begin, ChatLogIdx end,
     }
 }
 
+void GenericChatForm::goToCurrentDate()
+{
+    chatWidget->clear();
+    messages.clear();
+    auto end = ChatLogIdx(chatLog.size() - 1);
+    auto begin = end.get() > 100 ? ChatLogIdx(end.get() - 100) : ChatLogIdx(0);
+
+    renderMessages(begin, end);
+}
+
 void GenericChatForm::loadHistoryLower()
 {
     auto end = messages.begin()->first;
@@ -1050,6 +1067,7 @@ void GenericChatForm::retranslateUi()
     quoteAction->setText(tr("Quote selected text"));
     copyLinkAction->setText(tr("Copy link address"));
     searchAction->setText(tr("Search in text"));
+    goCurrentDateAction->setText(tr("Go to current date"));
     loadHistoryAction->setText(tr("Load chat history..."));
     exportChatAction->setText(tr("Export to file"));
 }

src/widget/form/genericchatform.h

@@ -126,6 +126,7 @@ protected slots:
     void renderMessage(ChatLogIdx idx);
     void renderMessages(ChatLogIdx begin, ChatLogIdx end,
                         std::function<void(void)> onCompletion = std::function<void(void)>());
+    void goToCurrentDate();
 
     void loadHistoryLower();
     void loadHistoryUpper();
@@ -165,6 +166,7 @@ protected:
     QAction* searchAction;
     QAction* loadHistoryAction;
     QAction* exportChatAction;
+    QAction* goCurrentDateAction;
 
     ToxPk previousId;