function switchEditor()

in AKS-Demos/WordPress-Demo/Code/public/wp-admin/js/editor.js [75:190]
83 lines of code
32 McCabe index (conditional complexity)

		function switchEditor( id, mode ) {
			id = id || 'content';
			mode = mode || 'toggle';

			var editorHeight, toolbarHeight, iframe,
				editor = tinymce.get( id ),
				wrap = $$( '#wp-' + id + '-wrap' ),
				$textarea = $$( '#' + id ),
				textarea = $textarea[0];

			if ( 'toggle' === mode ) {
				if ( editor && ! editor.isHidden() ) {
					mode = 'html';
				} else {
					mode = 'tmce';
				}
			}

			if ( 'tmce' === mode || 'tinymce' === mode ) {
				// If the editor is visible we are already in `tinymce` mode.
				if ( editor && ! editor.isHidden() ) {
					return false;
				}

				// Insert closing tags for any open tags in QuickTags.
				if ( typeof( window.QTags ) !== 'undefined' ) {
					window.QTags.closeAllTags( id );
				}

				editorHeight = parseInt( textarea.style.height, 10 ) || 0;

				var keepSelection = false;
				if ( editor ) {
					keepSelection = editor.getParam( 'wp_keep_scroll_position' );
				} else {
					keepSelection = window.tinyMCEPreInit.mceInit[ id ] &&
									window.tinyMCEPreInit.mceInit[ id ].wp_keep_scroll_position;
				}

				if ( keepSelection ) {
					// Save the selection.
					addHTMLBookmarkInTextAreaContent( $textarea );
				}

				if ( editor ) {
					editor.show();

					// No point to resize the iframe in iOS.
					if ( ! tinymce.Env.iOS && editorHeight ) {
						toolbarHeight = getToolbarHeight( editor );
						editorHeight = editorHeight - toolbarHeight + 14;

						// Sane limit for the editor height.
						if ( editorHeight > 50 && editorHeight < 5000 ) {
							editor.theme.resizeTo( null, editorHeight );
						}
					}

					if ( editor.getParam( 'wp_keep_scroll_position' ) ) {
						// Restore the selection.
						focusHTMLBookmarkInVisualEditor( editor );
					}
				} else {
					tinymce.init( window.tinyMCEPreInit.mceInit[ id ] );
				}

				wrap.removeClass( 'html-active' ).addClass( 'tmce-active' );
				$textarea.attr( 'aria-hidden', true );
				window.setUserSetting( 'editor', 'tinymce' );

			} else if ( 'html' === mode ) {
				// If the editor is hidden (Quicktags is shown) we don't need to switch.
				if ( editor && editor.isHidden() ) {
					return false;
				}

				if ( editor ) {
					// Don't resize the textarea in iOS.
					// The iframe is forced to 100% height there, we shouldn't match it.
					if ( ! tinymce.Env.iOS ) {
						iframe = editor.iframeElement;
						editorHeight = iframe ? parseInt( iframe.style.height, 10 ) : 0;

						if ( editorHeight ) {
							toolbarHeight = getToolbarHeight( editor );
							editorHeight = editorHeight + toolbarHeight - 14;

							// Sane limit for the textarea height.
							if ( editorHeight > 50 && editorHeight < 5000 ) {
								textarea.style.height = editorHeight + 'px';
							}
						}
					}

					var selectionRange = null;

					if ( editor.getParam( 'wp_keep_scroll_position' ) ) {
						selectionRange = findBookmarkedPosition( editor );
					}

					editor.hide();

					if ( selectionRange ) {
						selectTextInTextArea( editor, selectionRange );
					}
				} else {
					// There is probably a JS error on the page.
					// The TinyMCE editor instance doesn't exist. Show the textarea.
					$textarea.css({ 'display': '', 'visibility': '' });
				}

				wrap.removeClass( 'tmce-active' ).addClass( 'html-active' );
				$textarea.attr( 'aria-hidden', false );
				window.setUserSetting( 'editor', 'html' );
			}
		}