X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/b925718b4bf2dd47a8429f844d0a255ca6e35bd1..b22765f41bf0b2021b9beb9120ee0ac91fa89292:/wp-admin/js/editor-expand.js

diff --git a/wp-admin/js/editor-expand.js b/wp-admin/js/editor-expand.js
index ba5b0952..bf67c64e 100644
--- a/wp-admin/js/editor-expand.js
+++ b/wp-admin/js/editor-expand.js
@@ -15,7 +15,8 @@
 			$visualEditor = $(),
 			$textTop = $( '#ed_toolbar' ),
 			$textEditor = $( '#content' ),
-			$textEditorClone = $( '<div id="content-textarea-clone" class="wp-exclude-emoji"></div>' ),
+			textEditor = $textEditor[0],
+			oldTextLength = 0,
 			$bottom = $( '#post-status-info' ),
 			$menuBar = $(),
 			$statusBar = $(),
@@ -52,16 +53,6 @@
 				sideSortablesHeight: 0
 			};
 
-		$textEditorClone.insertAfter( $textEditor );
-
-		$textEditorClone.css( {
-			'font-family': $textEditor.css( 'font-family' ),
-			'font-size': $textEditor.css( 'font-size' ),
-			'line-height': $textEditor.css( 'line-height' ),
-			'white-space': 'pre-wrap',
-			'word-wrap': 'break-word'
-		} );
-
 		function getHeights() {
 			var windowWidth = $window.width();
 
@@ -84,68 +75,41 @@
 			}
 		}
 
-		function textEditorKeyup( event ) {
-			var VK = jQuery.ui.keyCode,
-				key = event.keyCode,
-				range = document.createRange(),
-				selStart = $textEditor[0].selectionStart,
-				selEnd = $textEditor[0].selectionEnd,
-				textNode = $textEditorClone[0].firstChild,
-				buffer = 10,
-				offset, cursorTop, cursorBottom, editorTop, editorBottom;
-
-			if ( selStart && selEnd && selStart !== selEnd ) {
-				return;
-			}
-
-			// These are not TinyMCE ranges.
-			try {
-				range.setStart( textNode, selStart );
-				range.setEnd( textNode, selEnd + 1 );
-			} catch ( ex ) {}
-
-			offset = range.getBoundingClientRect();
-
-			if ( ! offset.height ) {
+		function textEditorResize() {
+			if ( mceEditor && ! mceEditor.isHidden() ) {
 				return;
 			}
 
-			cursorTop = offset.top - buffer;
-			cursorBottom = cursorTop + offset.height + buffer;
-			editorTop = heights.adminBarHeight + heights.toolsHeight + heights.textTopHeight;
-			editorBottom = heights.windowHeight - heights.bottomHeight;
-
-			if ( cursorTop < editorTop && ( key === VK.UP || key === VK.LEFT || key === VK.BACKSPACE ) ) {
-				window.scrollTo( window.pageXOffset, cursorTop + window.pageYOffset - editorTop );
-			} else if ( cursorBottom > editorBottom ) {
-				window.scrollTo( window.pageXOffset, cursorBottom + window.pageYOffset - editorBottom );
-			}
-		}
-
-		function textEditorResize() {
-			if ( ( mceEditor && ! mceEditor.isHidden() ) || ( ! mceEditor && initialMode === 'tinymce' ) ) {
+			if ( ! mceEditor && initialMode === 'tinymce' ) {
 				return;
 			}
 
-			var textEditorHeight = $textEditor.height(),
-				hiddenHeight;
+			var length = textEditor.value.length;
+			var height = parseInt( textEditor.style.height, 10 );
+			var top = window.scrollTop;
 
-			$textEditorClone.width( $textEditor.width() - 22 );
-			$textEditorClone.text( $textEditor.val() + '&nbsp;' );
+			if ( length < oldTextLength ) {
+				// textEditor.scrollHeight is not adjusted until the next line.
+				textEditor.style.height = 'auto';
 
-			hiddenHeight = $textEditorClone.height();
+				if ( textEditor.scrollHeight > autoresizeMinHeight ) {
+					textEditor.style.height = textEditor.scrollHeight + 'px';
+				} else {
+					textEditor.style.height = autoresizeMinHeight + 'px';
+				}
 
-			if ( hiddenHeight < autoresizeMinHeight ) {
-				hiddenHeight = autoresizeMinHeight;
-			}
+				// Prevent scroll-jumping in Firefox and IE.
+				window.scrollTop = top;
 
-			if ( hiddenHeight === textEditorHeight ) {
-				return;
+				if ( textEditor.scrollHeight < height ) {
+					adjust();
+				}
+			} else if ( height < textEditor.scrollHeight ) {
+				textEditor.style.height = textEditor.scrollHeight + 'px';
+				adjust();
 			}
 
-			$textEditor.height( hiddenHeight );
-
-			adjust();
+			oldTextLength = length;
 		}
 
 		// We need to wait for TinyMCE to initialize.
@@ -474,7 +438,7 @@
 
 					if ( event && event.deltaHeight > 0 && event.deltaHeight < 100 ) {
 						window.scrollBy( 0, event.deltaHeight );
-					} else if ( advanced ) {
+					} else if ( visual && advanced ) {
 						fixedBottom = true;
 
 						$statusBar.css( {
@@ -603,8 +567,6 @@
 					$textEditor.css( {
 						marginTop: heights.textTopHeight
 					} );
-
-					$textEditorClone.width( contentWrapWidth - 20 - ( borderWidth * 2 ) );
 				}
 			}
 		}
@@ -642,7 +604,7 @@
 
 			// Adjust when collapsing the menu, changing the columns, changing the body class.
 			$document.on( 'wp-collapse-menu.editor-expand postboxes-columnchange.editor-expand editor-classchange.editor-expand', adjust )
-				.on( 'postbox-toggled.editor-expand', function() {
+				.on( 'postbox-toggled.editor-expand postbox-moved.editor-expand', function() {
 					if ( ! fixedSideTop && ! fixedSideBottom && window.pageYOffset > pinnedToolsTop ) {
 						fixedSideBottom = true;
 						window.scrollBy( 0, -1 );
@@ -660,7 +622,6 @@
 				});
 
 			$textEditor.on( 'focus.editor-expand input.editor-expand propertychange.editor-expand', textEditorResize );
-			$textEditor.on( 'keyup.editor-expand', textEditorKeyup );
 			mceBind();
 
 			// Adjust when entering/exiting fullscreen mode.