fix(editstackedwidget): enhance text input handling and max length management

- Refactored the text input handling in the NameTextEdit class to improve cursor positioning and character limit enforcement.
- Introduced a new method `setMaxLength` to dynamically set the maximum length for text input based on file suffixes.
- Updated the renameFile method to reserve space for file suffixes, ensuring that the main file name is editable without truncating the suffix.

These changes enhance user experience by providing better control over text input and ensuring that file names are handled correctly.

bug: https://pms.uniontech.com/bug-view-321657.html

Author: dengzhongyuan365-dev

src/plugins/common/dfmplugin-propertydialog/views/editstackedwidget.cpp

@@ -77,21 +77,30 @@ void NameTextEdit::slotTextChanged()
     Q_UNUSED(blocker)
 
     QString text = this->toPlainText();
-    const QString old_text = text;
-
-    int text_length = text.length();
-
-    text.remove('/');
-    text.remove(QChar(0));
-
-    int cursor_pos = this->textCursor().position() - text_length + text.length();
+    if (text.isEmpty()) {
+        return;
+    }
 
-    while (textLength(text) > NAME_MAX) {
-        text.chop(1);
+    // 参考视图区域的逻辑：先预处理文件名，再处理长度
+    QString dstText = FileUtils::preprocessingFileName(text);
+    
+    bool hasInvalidChar = text != dstText;
+    if (hasInvalidChar) {
+        showAlertMessage(tr("%1 are not allowed").arg("|/\\*:\"'?<>"));
     }
 
-    if (text.size() != old_text.size()) {
-        this->setPlainText(text);
+    int cursor_pos = this->textCursor().position();
+    cursor_pos += dstText.length() - text.length();
+
+    int limit = (maxLengthVal > 0 ? maxLengthVal : NAME_MAX);
+    FileUtils::processLength(dstText, cursor_pos, limit, useCharCount, dstText, cursor_pos);
+    
+    if (text != dstText) {
+        this->setPlainText(dstText);
+        QTextCursor cursor = this->textCursor();
+        cursor.setPosition(cursor_pos);
+        this->setTextCursor(cursor);
+        this->setAlignment(Qt::AlignHCenter);
     }
 
     QTextCursor cursor = this->textCursor();
@@ -104,33 +113,19 @@ void NameTextEdit::slotTextChanged()
         format.setLineHeight(kTextLineHeight, QTextBlockFormat::FixedHeight);
         cursor.setBlockFormat(format);
     } while (cursor.movePosition(QTextCursor::NextBlock));
-
+    
     cursor.setPosition(cursor_pos);
 
     this->setTextCursor(cursor);
     this->setAlignment(Qt::AlignHCenter);
 
     if (this->isReadOnly())
         this->setFixedHeight(static_cast<int>(this->document()->size().height()));
+}
 
-    QString dstText = FileUtils::preprocessingFileName(text);
-
-    bool hasInvalidChar = text != dstText;
-
-    int endPos = this->textCursor().position() + (dstText.length() - text.length());
-
-    FileUtils::processLength(dstText, endPos, NAME_MAX, true, dstText, endPos);
-    if (text != dstText) {
-        this->setPlainText(dstText);
-        QTextCursor cursor = this->textCursor();
-        cursor.setPosition(endPos);
-        this->setTextCursor(cursor);
-        this->setAlignment(Qt::AlignHCenter);
-    }
-
-    if (hasInvalidChar) {
-        showAlertMessage(tr("%1 are not allowed").arg("|/\\*:\"'?<>"));
-    }
+void NameTextEdit::setMaxLength(int len)
+{
+    maxLengthVal = qMax(0, len);
 }
 
 void NameTextEdit::showAlertMessage(const QString &text, int duration)
@@ -170,11 +165,14 @@ void NameTextEdit::keyPressEvent(QKeyEvent *event)
     if (event->key() == Qt::Key_Escape) {
         setIsCanceled(true);
         emit editFinished();
+        event->accept();
         return;
     }
     if (event->key() == Qt::Key_Return || event->key() == Qt::Key_Enter) {
         setIsCanceled(false);
         emit editFinished();
+        event->accept();
+        return;
     }
     QTextEdit::keyPressEvent(event);
 }
@@ -295,20 +293,26 @@ void EditStackedWidget::renameFile()
 {
     QFileInfo info(fileUrl.path());
 
-    if (FileUtils::supportLongName(fileUrl))
+    // 设置最大长度：为后缀预留长度（与图标/列表一致）
+    const QString suffix = info.suffix();
+    const bool isLongNameFs = FileUtils::supportLongName(fileUrl);
+    int reserve = suffix.isEmpty() ? 0 : (isLongNameFs ? (suffix.length() + 1) : (suffix.toLocal8Bit().size() + 1));
+    int maxLen = NAME_MAX - reserve;
+    if (isLongNameFs)
         fileNameEdit->setCharCountLimit();
+    fileNameEdit->setMaxLength(maxLen);
 
     fileNameEdit->setPlainText(info.fileName());
     this->setCurrentIndex(0);
     fileNameEdit->setFixedHeight(textShowFrame->height());
     fileNameEdit->setFocus();
 
-    fileNameEdit->selectAll();
-    int endPos = fileNameEdit->toPlainText().length();
-
+    // 仅选择主文件名部分，保留后缀不被覆盖
+    const QString fullName = info.fileName();
+    const int baseLen = info.completeBaseName().length();
     QTextCursor cursor = fileNameEdit->textCursor();
     cursor.setPosition(0);
-    cursor.setPosition(endPos, QTextCursor::KeepAnchor);
+    cursor.setPosition(qMin(baseLen, fullName.length()), QTextCursor::KeepAnchor);
     fileNameEdit->setTextCursor(cursor);
 }
 

src/plugins/common/dfmplugin-propertydialog/views/editstackedwidget.h

@@ -28,6 +28,7 @@ class NameTextEdit : public DTK_WIDGET_NAMESPACE::DTextEdit
     bool isCanceled() const;
     void setIsCanceled(bool isCancele);
     inline void setCharCountLimit() { useCharCount = true; }
+    void setMaxLength(int len);
 
 signals:
     void editFinished();
@@ -50,6 +51,7 @@ public slots:
 
     bool isCancel = false;
     bool useCharCount = false;
+    int maxLengthVal = 0;
 
     DTK_WIDGET_NAMESPACE::DArrowRectangle *tooltip { nullptr };
 };