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In this chapter, you learn how to edit text in your JavaFX applications by using the embedded HTML editor.
Because the HTMLEditor class is an extension of the Node class, you can apply visual effects or transformations to its instances. Like any other UI control, the HTMLEditor component must be added the scene so that it can appear in your application. The applied style changes the border of the component and the font of the formatting toolbars. The HTMLEditor class provides a method to define the content that appears in the editing area when the application starts. Figure 19-4 demonstrates the text editor with the text set by using the setHTMLText method.
You can use the HTML tags in this string to apply specific formatting for the initially rendered content.
You can use the HTMLEditor control to implement typical user interfaces (UIs) in your JavaFX applications. The user interface includes a choice box to select a type of recipient, two text fields to enter the email address and the subject of the message, a label to indicate the subject field, the editor, and the Send button.


The UI controls are arranged on the application scene by using the Grid and VBox layout containers. The getHTMLText method called on the HTMLEditor object derives the edited content and presents it as an HTML string. Similarly, you can obtain HTML code and save it in the file or send it to the WebView object to synchronize content in the editor and the embedded browser.
HTML code received from the htmlEditor component is loaded in the WebEngine object that specifies the content for the embedded browser.
You can add it directly to the scene as shown in Example 19-1 or through a layout container as done in other examples. Use the setHtmlText method, as shown in Example 19-3 to set the initial text for the editor. For example, you can implement instant messenger services, email clients, or even content management systems. When you compile and run this application, the window shown in Figure 19-5 shows the output of this application when a user is composing a weekly report. This information is passed to the text area, so that you can observe, copy, and paste the produced HTML code.


Each time a user clicks the Load Content in Browser button, the edited content is updated in the browser.
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However, you still can customize the appearance of the editor by applying CSS style, as shown in Example 19-2. Prior to her assignment at Oracle, she worked as a technical writer in different IT companies.
When the text content exceeds the height of the editing area, the vertical scroll bar appears.




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