use correct document and window/global objects

src/component/base/DraftEditor.react.js

@@ -445,14 +445,7 @@ class DraftEditor extends React.Component<DraftEditorProps, State> {
      * ie9-beta-minor-change-list.aspx
      */
     if (isIE) {
-      document.execCommand('AutoUrlDetect', false, false);
-    }
-    const {iframeWindow, iframeDocument} = this.props;
-    if (iframeWindow) {
-      document._iframeWindow = iframeWindow;
-    }
-    if (iframeDocument) {
-      document._iframeDocument = iframeDocument;
+      this.editor.ownerDocument.execCommand('AutoUrlDetect', false, false);
     }
   }
 
@@ -486,10 +479,7 @@ class DraftEditor extends React.Component<DraftEditorProps, State> {
     const scrollParent = Style.getScrollParent(editorNode);
     const {x, y} = scrollPosition || getScrollPosition(scrollParent);
 
-    invariant(
-      isHTMLElement(editorNode),
-      'editorNode is not an HTMLElement',
-    );
+    invariant(isHTMLElement(editorNode), 'editorNode is not an HTMLElement');
 
     editorNode.focus();
 
@@ -513,10 +503,7 @@ class DraftEditor extends React.Component<DraftEditorProps, State> {
 
   blur = (): void => {
     const editorNode = ReactDOM.findDOMNode(this.editor);
-    invariant(
-      isHTMLElement(editorNode),
-      'editorNode is not an HTMLElement',
-    );
+    invariant(isHTMLElement(editorNode), 'editorNode is not an HTMLElement');
     editorNode.blur();
   };
 

src/component/handlers/drag/DraftEditorDragHandler.js

@@ -39,8 +39,10 @@ function getSelectionForEvent(
   /* $FlowFixMe(>=0.68.0 site=www,mobile) This comment suppresses an error
    * found when Flow v0.68 was deployed. To see the error delete this comment
    * and run Flow. */
-  if (typeof document.caretRangeFromPoint === 'function') {
-    const dropRange = document.caretRangeFromPoint(event.x, event.y);
+  const {ownerDocument} = event.target;
+
+  if (typeof ownerDocument.caretRangeFromPoint === 'function') {
+    const dropRange = ownerDocument.caretRangeFromPoint(event.x, event.y);
     node = dropRange.startContainer;
     offset = dropRange.startOffset;
   } else if (event.rangeParent) {

src/component/selection/expandRangeToStartOfLine.js

@@ -14,14 +14,15 @@
 const UnicodeUtils = require('UnicodeUtils');
 
 const getRangeClientRects = require('getRangeClientRects');
+const getCorrectDocumentFromNode = require('getCorrectDocumentFromNode');
 const invariant = require('invariant');
-
 /**
  * Return the computed line height, in pixels, for the provided element.
  */
 function getLineHeightPx(element: Element): number {
   const computed = getComputedStyle(element);
-  const div = document.createElement('div');
+  const correctDocument = getCorrectDocumentFromNode(element);
+  const div = correctDocument.createElement('div');
   div.style.fontFamily = computed.fontFamily;
   div.style.fontSize = computed.fontSize;
   div.style.fontStyle = computed.fontStyle;
@@ -30,7 +31,7 @@ function getLineHeightPx(element: Element): number {
   div.style.position = 'absolute';
   div.textContent = 'M';
 
-  const documentBody = document.body;
+  const documentBody = correctDocument.body;
   invariant(documentBody, 'Missing document.body');
 
   // forced layout here

src/component/selection/findAncestorOffsetKey.js

@@ -14,13 +14,16 @@
 'use strict';
 
 const getSelectionOffsetKeyForNode = require('getSelectionOffsetKeyForNode');
-
+const getCorrectDocumentFromNode = require('getCorrectDocumentFromNode');
 /**
  * Get the key from the node's nearest offset-aware ancestor.
  */
 function findAncestorOffsetKey(node: Node): ?string {
   let searchNode = node;
-  while (searchNode && searchNode !== document.documentElement) {
+  while (
+    searchNode &&
+    searchNode !== getCorrectDocumentFromNode(node).documentElement
+  ) {
     const key = getSelectionOffsetKeyForNode(searchNode);
     if (key != null) {
       return key;