X-Git-Url: http://source.bookstackapp.com/bookstack/blobdiff_plain/bed2c29a33f6e109ce1dd2ef76fc9fbd7a217080..refs/pull/5676/head:/resources/js/wysiwyg/utils/dom.ts

diff --git a/resources/js/wysiwyg/utils/dom.ts b/resources/js/wysiwyg/utils/dom.ts
index d5c63a816..8bacd1002 100644
--- a/resources/js/wysiwyg/utils/dom.ts
+++ b/resources/js/wysiwyg/utils/dom.ts
@@ -52,12 +52,19 @@ export type StyleMap = Map<string, string>;
 /**
  * Creates a map from an element's styles.
  * Uses direct attribute value string handling since attempting to iterate
- * over .style will expand out any shorthand properties (like 'padding') making
+ * over .style will expand out any shorthand properties (like 'padding')
  * rather than being representative of the actual properties set.
  */
 export function extractStyleMapFromElement(element: HTMLElement): StyleMap {
-    const map: StyleMap = new Map();
     const styleText= element.getAttribute('style') || '';
+    return styleStringToStyleMap(styleText);
+}
+
+/**
+ * Convert string-formatted styles into a StyleMap.
+ */
+export function styleStringToStyleMap(styleText: string): StyleMap {
+    const map: StyleMap = new Map();
 
     const rules = styleText.split(';');
     for (const rule of rules) {
@@ -70,4 +77,23 @@ export function extractStyleMapFromElement(element: HTMLElement): StyleMap {
     }
 
     return map;
+}
+
+/**
+ * Convert a StyleMap into inline string style text.
+ */
+export function styleMapToStyleString(map: StyleMap): string {
+    const parts = [];
+    for (const [style, value] of map.entries()) {
+        parts.push(`${style}:${value}`);
+    }
+    return parts.join(';');
+}
+
+export function setOrRemoveAttribute(element: HTMLElement, name: string, value: string|null|undefined) {
+    if (value) {
+        element.setAttribute(name, value);
+    } else {
+        element.removeAttribute(name);
+    }
 }
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