Customize the Menu of Text Eiting

 

When entering the editing mode, the PDF document will also enter the corresponding interaction status according to different operations. In different interaction status, a context menu like PopWindow will be popped up, and the context menu will call back to different interfaces and includes different operation classes. The following are the different interaction status:

         - EditTextArea When selecting a text block or an image.

         - EditSelectText When editing the content in the text block and long-pressing to select the text.

         - EditText When editing the content in the text block and clicking where the cursor is.

 

ComPDFKit provides a base class of menu. You can extend the base class of menu and respond to different operations according to your rules.

The following code shows you how to extend the base menu class.  

DemoContextMenuHelper contextMenuHelper = new DemoContextMenuHelper(readerView, this);
readerView.setContextMenuShowListener(contextMenuHelper);

 
When selecting a text block, you can override the method getEditTextAreaContentView() to pop up the context menu and implement the following operations: ​

         - CPDFPageView.operateEditTextArea(CPDFPageView.EditTextAreaFuncType.EDIT) The keyboard pops up and the cursor is displayed, then users can edit the text content.

​         - CPDFPageView.operateEditTextArea(CPDFPageView.EditTextAreaFuncType.DELETE) Delete the selected text block.

​         - CPDFPageView.operateEditTextArea(CPDFPageView.EditTextAreaFuncType.COPY) Copy the selected text block with style to the clipboard.

​         - CPDFPageView.operateEditTextArea(CPDFPageView.EditTextAreaFuncType.COPY_WITHOUT_STYLE) Copy the selected text block without style to the clipboard. ​

         - CPDFPageView.operateEditTextSelect(CPDFPageView.EditTextSelectFuncType.ATTR) Set properties of selected text in a text block, including font size, italic, bold, color, alignment, and transparency. When editing the content in the text block and selecting a text, you can override the method getEditSelectTextContentView() to pop up the context menu and implement the following operations: ​

         - CPDFPageView.operateEditTextSelect(CPDFPageView.EditTextSelectFuncType.DELETE) Delete the selected text.

​         -  CPDFPageView.operateEditTextSelect(CPDFPageView.EditTextAreaFuncType.CUT) Cut the selected text. ​

         -  CPDFPageView.operateEditTextSelect(CPDFPageView.EditTextAreaFuncType.COPY Copy the selected text. When editing the content in the text block and clicking where the cursor is, you can override the method getEditTextContentView() to pop up the context menu and implement the following operations: ​

         - CPDFPageView.operateEditText(CPDFPageView.EditTextFuncType.SELECT Select the word text where the cursor is located. Enter the EditSelectText status after using this method. ​

         -  CPDFPageView.operateEditText(CPDFPageView.EditTextFuncType.SELECT_ALL Select all text in the text block. Enter the EditSelectText status after using this method. ​

         -  CPDFPageView.operateEditText(CPDFPageView.EditTextFuncType.PASTE Paste the contents of the clipboard to the behind of the cursor. When selecting the image, you can override the method getEditImageAreaContentView() to pop up the context menu and implement the following operations: ​

         -  CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.DELETE Delete the selected image. ​

         -  CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.ENTER_CROP Start cropping the selected image. ​

         - CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.ROTATE Rotate the selected image block. ​

         - CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.HORIZENTAL_MIRROR Mirror the selected image horizontally.

         - CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.VERTICLE_MIRROR Mirror the selected image vertically. ​

         - CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.REPLACE Replace the selected image with another image. ​

         -  CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.EXTRACT_IMAGE Extract the selected image and save it as a file. ​

         - CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.TRANCPARENCY Modify transparency of the selected image. When clicking the image which has started cropping, you can override the method getCropImageAreaContentView() to pop up the context menu and implement the following operations:

         - CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.CROP Crop the selected image.

         - CPDFPageView.operateEditImageArea(CPDFPageView.EditImageFuncType.EXIT_CROP, null Ends cropping the image. When pressing and holding a blank space on the page, you can override the method getEditLongPressContentView() to pop up the context menu and implement the following operations: ​

         - CPDFPageView.addEditTextAres(final PointF point) Add a text block at the point position. ​

         - CPDFPageView.addEditImageAres(final PointF point, String path) Add an image at the point position. ​

         -  CPDFPageView.pasteEditTextArea(final PointF point, int width, int height) Paste the text block on the clipboard at the point position.