Guides

内容编辑

ComPDF Flutter SDK 支持内容编辑相关回调和监听事件，用于处理属性面板和可编辑内容选中状态。

可用回调和事件

类型	名称	触发时机	返回值
阅读器回调	onContentEditorStyleDialogDismissedCallback	内容编辑属性弹窗关闭	CPDFEditAreaType type
监听事件	CPDFEvent.editorSelectionSelected	可编辑内容被选中	CPDFEditArea
监听事件	CPDFEvent.editorSelectionDeselected	可编辑内容取消选中	CPDFEditArea?

示例

late CPDFReaderWidgetController readerController;

void onEditorSelectionSelected(dynamic editArea) {
  debugPrint('内容编辑对象已选中： $editArea');
}

void onEditorSelectionDeselected(dynamic editArea) {
  debugPrint('内容编辑对象已取消选中： $editArea');
}

CPDFReaderWidget(
  document: documentPath,
  configuration: configuration,
  onCreated: (controller) {
    readerController = controller;
    readerController.addEventListener(
      CPDFEvent.editorSelectionSelected,
      onEditorSelectionSelected,
    );
    readerController.addEventListener(
      CPDFEvent.editorSelectionDeselected,
      onEditorSelectionDeselected,
    );
  },
  onContentEditorStyleDialogDismissedCallback: (CPDFEditAreaType type) {
    debugPrint('内容编辑属性弹窗已关闭： ${type.name}');
  },
);

CPDFEvent.editorSelectionSelected 返回 CPDFEditArea 及其子类，例如 CPDFEditTextArea、CPDFEditImageArea 和 CPDFEditPathArea。CPDFEvent.editorSelectionDeselected 可能返回 null。

移除监听

readerController.removeEventListener(
  CPDFEvent.editorSelectionSelected,
  onEditorSelectionSelected,
);