fix: add remove history prompt, clear log area after remove

src/model/about/aboutfriend.cpp

@@ -110,3 +110,14 @@ bool AboutFriend::clearHistory()
 
     return false;
 }
+
+bool AboutFriend::isHistoryExistence()
+{
+    History* const history = Nexus::getProfile()->getHistory();
+    if (history) {
+        const ToxPk pk = f->getPublicKey();
+        return history->isHistoryExistence(pk.toString());
+    }
+
+    return false;
+}

src/model/about/aboutfriend.h

@@ -36,6 +36,7 @@ public:
     void setAutoGroupInvite(bool enabled) override;
 
     bool clearHistory() override;
+    bool isHistoryExistence() override;
 
     SIGNAL_IMPL(AboutFriend, nameChanged, const QString&)
     SIGNAL_IMPL(AboutFriend, statusChanged, const QString&)

src/model/about/iaboutfriend.h

@@ -29,6 +29,7 @@ public:
     virtual void setAutoGroupInvite(bool enabled) = 0;
 
     virtual bool clearHistory() = 0;
+    virtual bool isHistoryExistence() = 0;
 
     /* signals */
     DECLARE_SIGNAL(nameChanged, const QString&);

src/persistence/history.cpp

@@ -85,6 +85,16 @@ bool History::isValid()
     return db && db->isOpen();
 }
 
+/**
+ * @brief Checks if a friend has chat history
+ * @param friendPk
+ * @return True if has, false otherwise.
+ */
+bool History::isHistoryExistence(const QString& friendPk)
+{
+    return !getChatHistoryDefaultNum(friendPk).isEmpty();
+}
+
 /**
  * @brief Erases all the chat history from the database.
  */

src/persistence/history.h

@@ -73,6 +73,8 @@ public:
     bool isValid();
     void import(const HistoryKeeper& oldHistory);
 
+    bool isHistoryExistence(const QString& friendPk);
+
     void eraseHistory();
     void removeFriendHistory(const QString& friendPk);
     void addNewMessage(const QString& friendPk, const QString& message, const QString& sender,

src/widget/about/aboutfriendform.cpp

@@ -1,4 +1,5 @@
 #include "aboutfriendform.h"
+#include "src/widget/gui.h"
 #include "ui_aboutfriendform.h"
 #include "src/core/core.h"
 
@@ -25,6 +26,8 @@ AboutFriendForm::AboutFriendForm(std::unique_ptr<IAboutFriend> _about, QWidget*
     const QString dir = about->getAutoAcceptDir();
     ui->autoacceptfile->setChecked(!dir.isEmpty());
 
+    ui->removeHistory->setEnabled(about->isHistoryExistence());
+
     const int index = static_cast<int>(about->getAutoAcceptCall());
     ui->autoacceptcall->setCurrentIndex(index);
 
@@ -105,10 +108,24 @@ void AboutFriendForm::onAcceptedClicked()
 
 void AboutFriendForm::onRemoveHistoryClicked()
 {
-    about->clearHistory();
+   const bool retYes = GUI::askQuestion(tr("Confirmation"),
+                                   tr("Are you sure to remove %1 chat history?").arg(about->getName()),
+                                   /* defaultAns = */ false, /* warning = */ true, /* yesno = */ true);
+    if (!retYes) {
+        return;
+    }
 
-    QMessageBox::information(this, tr("History removed"), tr("Chat history with %1 removed!")
+   const bool result = about->clearHistory();
-                             .arg(about->getName().toHtmlEscaped()), QMessageBox::Ok);
+
+    if (!result) {
+        GUI::showWarning(tr("History removed"),
+                         tr("Failed to remove chat history with %1!").arg(about->getName()).toHtmlEscaped());
+        return;
+    }
+
+    emit histroyRemoved();
+
+    ui->removeHistory->setEnabled(false); // For know clearly to has removed the history
 }
 
 AboutFriendForm::~AboutFriendForm()

src/widget/about/aboutfriendform.h

@@ -24,6 +24,9 @@ private:
     Ui::AboutFriendForm* ui;
     const std::unique_ptr<IAboutFriend> about;
 
+signals:
+    void histroyRemoved();
+
 private slots:
     void onAutoAcceptDirChanged(const QString& path);
     void onAcceptedClicked();

src/widget/form/chatform.cpp

@@ -725,9 +725,9 @@ void ChatForm::dropEvent(QDropEvent* ev)
     }
 }
 
-void ChatForm::clearChatArea(bool notInForm)
+void ChatForm::clearChatArea()
 {
-    GenericChatForm::clearChatArea(notInForm);
+    GenericChatForm::clearChatArea(/* confirm = */ false, /* inform = */ true);
     offlineEngine->removeAllReceipts();
 }
 

src/widget/form/chatform.h

@@ -74,6 +74,7 @@ public slots:
     void onAvEnd(uint32_t friendId, bool error);
     void onAvatarChanged(const ToxPk &friendPk, const QPixmap& pic);
     void onFileNameChanged(const ToxPk& friendPk);
+    void clearChatArea();
 
 protected slots:
     void searchInBegin(const QString& phrase, const ParameterSearch& parameter) override;
@@ -81,7 +82,6 @@ protected slots:
     void onSearchDown(const QString& phrase, const ParameterSearch& parameter) override;
 
 private slots:
-    void clearChatArea(bool notInForm) override final;
     void onSendTriggered() override;
     void onAttachClicked() override;
     void onScreenshotClicked() override;

src/widget/form/genericchatform.cpp

@@ -220,7 +220,7 @@ GenericChatForm::GenericChatForm(const Contact* contact, QWidget* parent)
     saveChatAction = menu.addAction(QIcon::fromTheme("document-save"), QString(),
                                     this, SLOT(onSaveLogClicked()));
     clearAction = menu.addAction(QIcon::fromTheme("edit-clear"), QString(),
-                                 this, SLOT(clearChatArea(bool)),
+                                 this, SLOT(clearChatArea()),
                                  QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_L));
     addAction(clearAction);
 
@@ -816,11 +816,12 @@ std::pair<int, int> GenericChatForm::indexForSearchInLine(const QString& txt, co
 
 void GenericChatForm::clearChatArea()
 {
-    clearChatArea(true);
+    clearChatArea(/* confirm = */ true, /* inform = */ true);
 }
 
-void GenericChatForm::clearChatArea(bool notinform)
+void GenericChatForm::clearChatArea(bool confirm, bool inform)
 {
+    if (confirm) {
         QMessageBox::StandardButton mboxResult =
                 QMessageBox::question(this, tr("Confirmation"),
                                       tr("You are sure that you want to clear all displayed messages?"),
@@ -828,15 +829,15 @@ void GenericChatForm::clearChatArea(bool notinform)
         if (mboxResult == QMessageBox::No) {
             return;
         }
+    }
+
     chatWidget->clear();
     previousId = ToxPk();
 
-    if (!notinform)
+    if (inform)
         addSystemInfoMessage(tr("Cleared"), ChatMessage::INFO, QDateTime::currentDateTime());
 
     earliestMessage = QDateTime(); // null
-
-    emit chatAreaCleared();
 }
 
 void GenericChatForm::onSelectAllClicked()

src/widget/form/genericchatform.h

@@ -87,7 +87,6 @@ public:
 signals:
     void sendMessage(uint32_t, QString);
     void sendAction(uint32_t, QString);
-    void chatAreaCleared();
     void messageInserted();
     void messageNotFoundShow(SearchDirection direction);
 
@@ -104,8 +103,8 @@ protected slots:
     void onEmoteInsertRequested(QString str);
     void onSaveLogClicked();
     void onCopyLogClicked();
-    virtual void clearChatArea(bool);
     void clearChatArea();
+    void clearChatArea(bool confirm, bool inform);
     void onSelectAllClicked();
     void showFileMenu();
     void hideFileMenu();

src/widget/friendwidget.cpp

@@ -294,6 +294,7 @@ void FriendWidget::showDetails()
     const auto iabout = new AboutFriend(frnd, &Settings::getInstance());
     std::unique_ptr<IAboutFriend> about = std::unique_ptr<IAboutFriend>(iabout);
     const auto aboutUser = new AboutFriendForm(std::move(about), Widget::getInstance());
+    connect(aboutUser, &AboutFriendForm::histroyRemoved, this, &FriendWidget::friendHistoryRemoved);
     aboutUser->show();
 }
 

src/widget/friendwidget.h

@@ -48,6 +48,7 @@ signals:
     void removeFriend(int friendId);
     void copyFriendIdToClipboard(int friendId);
     void contextMenuCalled(QContextMenuEvent* event);
+    void friendHistoryRemoved();
 
 public slots:
     void onAvatarSet(const ToxPk& friendPk, const QPixmap& pic);

src/widget/widget.cpp

@@ -1015,6 +1015,7 @@ void Widget::addFriend(uint32_t friendId, const ToxPk& friendPk)
     connect(widget, &FriendWidget::newWindowOpened, this, &Widget::openNewDialog);
     connect(widget, &FriendWidget::chatroomWidgetClicked, this, &Widget::onChatroomWidgetClicked);
     connect(widget, &FriendWidget::chatroomWidgetClicked, friendForm, &ChatForm::focusInput);
+    connect(widget, &FriendWidget::friendHistoryRemoved, friendForm, &ChatForm::clearChatArea);
     connect(widget, &FriendWidget::copyFriendIdToClipboard, this, &Widget::copyFriendIdToClipboard);
     connect(widget, &FriendWidget::contextMenuCalled, widget, &FriendWidget::onContextMenuCalled);
     connect(widget, SIGNAL(removeFriend(int)), this, SLOT(removeFriend(int)));

src/widget/widget.h

@@ -104,7 +104,7 @@ private:
 
 public:
     explicit Widget(QWidget* parent = nullptr);
-    ~Widget();
+    ~Widget() override;
     void init();
     void setCentralWidget(QWidget* widget, const QString& widgetName);
     QString getUsername();