feat: add text search

src/chatlog/content/text.cpp

@@ -58,6 +58,37 @@ void Text::setText(const QString& txt)
     dirty = true;
 }
 
+void Text::selectText(const QString &txt, const int index)
+{
+    regenerate();
+
+    if (!doc)
+        return;
+
+    QTextCursor cursor = doc->find(txt, index);
+
+    if (cursor != QTextCursor()) {
+        cursor.beginEditBlock();
+        cursor.setPosition(index);
+        cursor.setPosition(index + txt.size(), QTextCursor::KeepAnchor);
+        cursor.endEditBlock();
+
+        QTextCharFormat format;
+        format.setBackground(QBrush(QColor("#ff7626")));
+        cursor.mergeCharFormat(format);
+
+        regenerate();
+        update();
+    }
+}
+
+void Text::deselectText()
+{
+    dirty = true;
+    regenerate();
+    update();
+}
+
 void Text::setWidth(qreal w)
 {
     width = w;

src/chatlog/content/text.h

@@ -36,6 +36,8 @@ public:
     virtual ~Text();
 
     void setText(const QString& txt);
+    void selectText(const QString& txt, const int index);
+    void deselectText();
 
     virtual void setWidth(qreal width) final;
 

src/widget/form/chatform.cpp

@@ -180,6 +180,10 @@ ChatForm::ChatForm(Friend* chatFriend, History* history)
     connect(headWidget, &ChatFormHeader::volMuteToggle, this, &ChatForm::onVolMuteToggle);
     connect(headWidget, &ChatFormHeader::searchTriggered, this, &ChatForm::onSearchTrigered);
 
+    connect(searchForm, &SearchForm::searchInBegin, this, &ChatForm::earchInBegin);
+    connect(searchForm, &SearchForm::searchUp, this, &ChatForm::onSearchUp);
+    connect(searchForm, &SearchForm::searchDown, this, &ChatForm::onSearchDown);
+
     connect(msgEdit, &ChatTextEdit::enterPressed, this, &ChatForm::onSendTriggered);
     connect(msgEdit, &ChatTextEdit::textChanged, this, &ChatForm::onTextEditChanged);
     connect(msgEdit, &ChatTextEdit::pasteImage, this, &ChatForm::sendImage);
@@ -495,9 +499,113 @@ void ChatForm::onSearchTrigered()
     if (searchForm->maximumHeight() == 0) {
         searchForm->setMaximumHeight(50);
         headWidget->updateSearchButton(true);
+        searchPoint = QPoint(1, -1);
     } else {
         searchForm->setMaximumHeight(0);
+        searchForm->removeText();
         headWidget->updateSearchButton(false);
+
+        desibleSearchText();
+    }
+}
+
+void ChatForm::earchInBegin(const QString &phrase)
+{
+    desibleSearchText();
+
+    searchPoint = QPoint(1, -1);
+    onSearchUp(phrase);
+}
+
+void ChatForm::onSearchUp(const QString &phrase)
+{
+    if (phrase.isEmpty()) {
+        desibleSearchText();
+    }
+
+    QVector<ChatLine::Ptr> lines = chatWidget->getLines();
+    int numLines = lines.size();
+
+    int startLine = numLines - searchPoint.x();
+
+    if (startLine == 0) {
+        return;
+    }
+
+    for (int i = startLine; i >= 0; --i) {
+        ChatLine::Ptr l = lines[i];
+        if (l->getColumnCount() >= 2) {
+            ChatLineContent* content = l->getContent(1);
+            Text* text = static_cast<Text*>(content);
+            QString txt = content->getText();
+
+            if (txt.contains(phrase)) {
+                int startIndex = -1;
+                if (searchPoint.y() > -1) {
+                    startIndex = searchPoint.y() - 1;
+                }
+
+                int index = txt.lastIndexOf(phrase, startIndex);
+                if (index == -1 && searchPoint.y() > -1) {
+                    text->deselectText();
+                    searchPoint.setY(-1);
+                } else {
+                    chatWidget->scrollToLine(l);
+                    text->deselectText();
+                    text->selectText(phrase, index);
+                    searchPoint = QPoint(numLines - i, index);
+
+                    break;
+                }
+            }
+
+            if (i == 0) {
+                searchPoint.setX(numLines);
+                loadHistory(historyBaselineDate.addDays(-1));
+                onSearchUp(phrase);
+            }
+        }
+    }
+}
+
+void ChatForm::onSearchDown(const QString &phrase)
+{
+    if (phrase.isEmpty()) {
+        desibleSearchText();
+    }
+
+    QVector<ChatLine::Ptr> lines = chatWidget->getLines();
+    int numLines = lines.size();
+
+    int startLine = numLines - searchPoint.x();
+
+    for (int i = startLine; i < numLines; ++i) {
+        ChatLine::Ptr l = lines[i];
+        if (l->getColumnCount() >= 2) {
+            ChatLineContent* content = l->getContent(1);
+            Text* text = static_cast<Text*>(content);
+            QString txt = content->getText();
+
+            if (txt.contains(phrase)) {
+                int startIndex = 0;
+                if (searchPoint.y() > -1) {
+                    startIndex = searchPoint.y() + 1;
+                }
+
+                int index = txt.indexOf(phrase, startIndex);
+                if (index == -1 && searchPoint.y() > -1) {
+                    text->deselectText();
+                    searchPoint.setY(-1);
+                } else {
+                    chatWidget->scrollToLine(l);
+                    text->deselectText();
+                    text->selectText(phrase, index);
+                    searchPoint = QPoint(numLines - i, index);
+
+                    break;
+                }
+            }
+        }
     }
 }
 
@@ -969,6 +1077,21 @@ void ChatForm::SendMessageStr(QString msg)
     }
 }
 
+void ChatForm::desibleSearchText()
+{
+    if (searchPoint != QPoint(1, -1)) {
+        QVector<ChatLine::Ptr> lines = chatWidget->getLines();
+        int numLines = lines.size();
+        int index = numLines - searchPoint.x();
+        if (numLines > index) {
+            ChatLine::Ptr l = lines[index];
+            ChatLineContent* content = l->getContent(1);
+            Text* text = static_cast<Text*>(content);
+            text->deselectText();
+        }
+    }
+}
+
 void ChatForm::retranslateUi()
 {
     loadHistoryAction->setText(tr("Load chat history..."));

src/widget/form/chatform.h

@@ -89,6 +89,9 @@ private slots:
     void onVolMuteToggle();
     void onSearchTrigered();
 
+    void earchInBegin(const QString& phrase);
+    void onSearchUp(const QString& phrase);
+    void onSearchDown(const QString& phrase);
     void onFileSendFailed(uint32_t friendId, const QString& fname);
     void onFriendStatusChanged(quint32 friendId, Status status);
     void onFriendTypingChanged(quint32 friendId, bool isTyping);
@@ -113,6 +116,8 @@ private:
     void updateCallButtons();
     void SendMessageStr(QString msg);
 
+    void desibleSearchText();
+
 protected:
     GenericNetCamView* createNetcam() final override;
     void insertChatMessage(ChatMessage::Ptr msg) final override;
@@ -138,6 +143,7 @@ private:
     QHash<uint, FileTransferInstance*> ftransWidgets;
     bool isTyping;
     bool lastCallIsVideo;
+    QPoint searchPoint;
 };
 
 #endif // CHATFORM_H

src/widget/form/genericchatform.cpp

@@ -297,11 +297,13 @@ void GenericChatForm::showEvent(QShowEvent*)
 bool GenericChatForm::event(QEvent* e)
 {
     // If the user accidentally starts typing outside of the msgEdit, focus it automatically
-    if (e->type() == QEvent::KeyRelease && !msgEdit->hasFocus()) {
-        QKeyEvent* ke = static_cast<QKeyEvent*>(e);
-        if ((ke->modifiers() == Qt::NoModifier || ke->modifiers() == Qt::ShiftModifier)
-            && !ke->text().isEmpty())
-            msgEdit->setFocus();
+    if (searchForm->maximumHeight() == 0) {
+        if (e->type() == QEvent::KeyRelease && !msgEdit->hasFocus()) {
+            QKeyEvent* ke = static_cast<QKeyEvent*>(e);
+            if ((ke->modifiers() == Qt::NoModifier || ke->modifiers() == Qt::ShiftModifier)
+                    && !ke->text().isEmpty())
+                msgEdit->setFocus();
+        }
     }
     return QWidget::event(e);
 }

src/widget/searchform.cpp

@@ -25,4 +25,29 @@ SearchForm::SearchForm(QWidget *parent) : QWidget(parent)
     layout->addWidget(downButton);
 
     setLayout(layout);
+
+    connect(searchLine, &QLineEdit::textChanged, this, &SearchForm::changedSearchPhrare);
+    connect(upButton, &QPushButton::clicked, this, &SearchForm::clickedUp);
+    connect(downButton, &QPushButton::clicked, this, &SearchForm::clickedDown);
+}
+
+void SearchForm::removeText()
+{
+    searchLine->setText("");
+}
+
+void SearchForm::changedSearchPhrare(const QString &text)
+{
+    searchPhrase = text;
+    emit searchInBegin(searchPhrase);
+}
+
+void SearchForm::clickedUp()
+{
+    emit searchUp(searchPhrase);
+}
+
+void SearchForm::clickedDown()
+{
+    emit searchDown(searchPhrase);
 }

src/widget/searchform.h

@@ -11,11 +11,24 @@ class SearchForm final : public QWidget
     Q_OBJECT
 public:
     explicit SearchForm(QWidget *parent = nullptr);
+    void removeText();
 
 private:
     QPushButton* upButton;
     QPushButton* downButton;
     QLineEdit* searchLine;
+
+    QString searchPhrase;
+
+private slots:
+    void changedSearchPhrare(const QString &text);
+    void clickedUp();
+    void clickedDown();
+
+signals:
+    void searchInBegin(const QString &);
+    void searchUp(const QString &);
+    void searchDown(const QString &);
 };
 
 #endif // SEARCHFORM_H