Preventing auto-wrap with paragrapgh for specific elements

sure i can...

ckeditor_4.3.1_full

and this is my plugin.js:

/**
 * Basic sample plugin inserting current date and time into CKEditor editing area.
 *
 * Created out of the CKEditor Plugin SDK:
 * http://docs.ckeditor.com/#!/guide/plugin_sdk_intro
 */

// Register the plugin within the editor.
CKEDITOR.plugins.add( 'my_plugin', {

	// Register the icons. They must match command names.
	icons: 'my_plugin',

	// The plugin initialization logic goes inside this method.
	init: function( editor ) {

		// Define an editor command that inserts a timestamp.
		editor.addCommand( 'my_plugin', {

			// Define the function that will be fired when the command is executed.
			exec: function( editor ) {

        var selected_text       = editor.getSelection().getStartElement().getOuterHtml();  // Get Text
        //alert(selected_text);

        var floating = "";
        
        var Ergebnis = selected_text.search(/float: left.+/);
        if (Ergebnis != -1) {
          floating = "float: left;";
        } else {
          var Ergebnis = selected_text.search(/float: right.+/);
          if (Ergebnis != -1) {
            floating = "float: right;";
          } else {
            floating = "";
          }
        }

        var pre_selected_text   = "<figure class='caption' style='"+floating+"'>";
        var after_selected_text = "<figcaption>Bildunterschrift</figcaption></figure>";          

        if (selected_text.length < 1 ) {
          selected_text = "Bild";
        }
        editor.insertHtml(pre_selected_text+selected_text+after_selected_text);
        
			}
		});

		// Create the toolbar button that executes the above command.
		editor.ui.addButton( 'my_plugin', {
			label:   'BU2',
			command: 'my_plugin',
			toolbar: 'insert'
		});
	}
});

if i have a text and want to insert an image inside a p-tag, i click on insert image, select it, set align to left or right, press ok and its inside the text and the text floats around my image.. thats perfect...

but if i press my plugin-button to wrap my image with <figure> and <figcaption> the editor will break the p-tag, insert my code, and start a new p-tag ... so my text is not floating around the image.

expample-source inside ckeditor with normal image:
 

<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque rutrum tellus sed metus luctus condimentum. <img src="test.jpg" alt="" /> Nunc gravida orci felis, vitae dapibus quam gravida vel. Proin euismod lorem vitae ligula vehicula hendrerit.</p>

example-source inside ckeditor with my caption:

<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque rutrum tellus sed metus luctus condimentum.</p><figure class='caption' style='float:left'><img src="test.jpg" alt="" /> <figcaption>imagecaption</figcaption></figure><p>Nunc gravida orci felis, vitae dapibus quam gravida vel. Proin euismod lorem vitae ligula vehicula hendrerit.</p>

as you can see, ckeditor stops the default <p>-element, inserts my <figure>-element and starts a new <p>-element.

i want my <figure>-element inside the p-element the image was placed.

hope this helps to understand :) and thanks for reading and your time

yes i saw the demo, but i need a solution for images with captions inside my typo3 tt_news plugin. without captions its fine with floating text around my images, but with captions i cant solve it... :(

if i remove the closing and the new opening p-element, it works fine... but i cant tell the customers to modify the html-source ;)

i tried a solution with only spans, source was fine, but typo3 was wrapping it :/ thats why i thought to try out figure...

but thank you for your answers! :)

maybe someone else is looking for this solution :)