Selection API: Do not change focus by Selection functions.

third_party/WebKit/Source/core/editing/FrameSelection.cpp

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 224 matching lines @@
       return;
     }
   }
 
   m_frameCaret->stopCaretBlinkTimer();
   updateAppearance();
 
   // Always clear the x position used for vertical arrow navigation.
   // It will be restored by the vertical arrow navigation code if necessary.
   m_xPosForVerticalArrowNavigation = NoXPosForVerticalArrowNavigation();
-  // TODO(yosin): Can we move this to at end of this function?
-  // This may dispatch a synchronous focus-related events.
-  selectFrameElementInParentIfFullySelected();
-  if (!isAvailable() || document() != currentDocument) {
-    // editing/selection/selectallchildren-crash.html and
-    // editing/selection/longpress-selection-in-iframe-removed-crash.html
-    // reach here.
-    return;
+
+  if (!(options & DoNotSetFocus)) {
+    // TODO(yosin): Can we move this to at end of this function?  This may
+    // dispatch a synchronous focus-related events.
+    selectFrameElementInParentIfFullySelected();
+    if (!isAvailable() || document() != currentDocument) {
+      // editing/selection/selectallchildren-crash.html and
+      // editing/selection/longpress-selection-in-iframe-removed-crash.html
+      // reach here.
+      return;
+    }
   }
   EUserTriggered userTriggered = selectionOptionsToUserTriggered(options);
   notifyLayoutObjectOfSelectionChange(userTriggered);
   if (userTriggered == UserTriggered) {
     ScrollAlignment alignment;
 
     if (m_frame->editor().behavior().shouldCenterAlignWhenSelectionIsRevealed())
       alignment = (align == CursorAlignOnScroll::Always)
                       ? ScrollAlignment::alignCenterAlways
                       : ScrollAlignment::alignCenterIfNeeded;
@@ skipping 98 matching lines @@
 
 // The return value of |FrameSelection::modify()| is different based on
 // value of |userTriggered| parameter.
 // When |userTriggered| is |userTriggered|, |modify()| returns false if
 // "selectstart" event is dispatched and canceled, otherwise returns true.
 // When |userTriggered| is |NotUserTrigged|, return value specifies whether
 // selection is modified or not.
 bool FrameSelection::modify(EAlteration alter,
                             SelectionDirection direction,
                             TextGranularity granularity,
-                            EUserTriggered userTriggered) {
+                            EUserTriggered userTriggered,
+                            SetSelectionOptions noFocusFlag) {
+  DCHECK(noFocusFlag == 0 || noFocusFlag == DoNotSetFocus);
   SelectionModifier selectionModifier(
       *frame(), computeVisibleSelectionInDOMTreeDeprecated(),
       m_xPosForVerticalArrowNavigation);
   const bool modified = selectionModifier.modify(alter, direction, granularity);
   if (userTriggered == UserTriggered &&
       selectionModifier.selection().isRange() &&
       computeVisibleSelectionInDOMTreeDeprecated().isCaret() &&
       dispatchSelectStart(computeVisibleSelectionInDOMTreeDeprecated()) !=
           DispatchEventResult::NotCanceled) {
     return false;
   }
   if (!modified) {
     if (userTriggered == NotUserTriggered)
       return false;
     // If spatial navigation enabled, focus navigator will move focus to
     // another element. See snav-input.html and snav-textarea.html
     if (isSpatialNavigationEnabled(m_frame))
       return false;
     // Even if selection isn't changed, we prevent to default action, e.g.
     // scroll window when caret is at end of content editable.
     return true;
   }
 
   const SetSelectionOptions options =
-      CloseTyping | ClearTypingStyle | userTriggered;
+      CloseTyping | ClearTypingStyle | userTriggered | noFocusFlag;
   setSelection(selectionModifier.selection(), options);
 
   if (granularity == LineGranularity || granularity == ParagraphGranularity)
     m_xPosForVerticalArrowNavigation =
         selectionModifier.xPosForVerticalArrowNavigation();
 
   if (userTriggered == UserTriggered)
     m_granularity = CharacterGranularity;
 
   scheduleVisualUpdateForPaintInvalidationIfNeeded();
@@ skipping 768 matching lines @@
 }
 
 void showTree(const blink::FrameSelection* sel) {
   if (sel)
     sel->showTreeForThis();
   else
     LOG(INFO) << "Cannot showTree for <null> FrameSelection.";
 }
 
 #endif