Support 'insertReplacementText' for spellcheck

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

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 #include "core/editing/EditingUtilities.h"
 
 #include "core/HTMLElementFactory.h"
 #include "core/HTMLNames.h"
+#include "core/clipboard/DataObject.h"
 #include "core/dom/Document.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/dom/NodeComputedStyle.h"
 #include "core/dom/Range.h"
 #include "core/dom/Text.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/EditingStrategy.h"
 #include "core/editing/Editor.h"
 #include "core/editing/PlainTextRange.h"
 #include "core/editing/PositionIterator.h"
@@ skipping 2044 matching lines @@
   if (!RuntimeEnabledFeatures::inputEventEnabled())
     return DispatchEventResult::NotCanceled;
   if (!target)
     return DispatchEventResult::NotCanceled;
   InputEvent* beforeInputEvent = InputEvent::createBeforeInput(
       inputType, dataTransfer, InputEvent::EventCancelable::IsCancelable,
       InputEvent::EventIsComposing::NotComposing, ranges);
   return target->dispatchEvent(beforeInputEvent);
 }
 
+DispatchEventResult dispatchBeforeInputPlainText(

[chongz, 2016/10/27 16:41:24]

Sorry for the confusion. I was imagining we could merge this into
|dispatchBeforeInputDataTransfer()|, so we only have one method
|dispatchBeforeInputDataTransfer()|, which would dispatch |dataTransfer| on rich
text area, and dispatch |data| on plain text area.
e.g.
```
DispatchEventResult dispatchBeforeInputDataTransfer(
    Element* target,
    InputEvent::InputType inputType,
    DataTransfer* dataTransfer,
    const RangeVector* ranges);
```
And we can get string data from |dataTransfer.getData(mimeTypeTextPlain)|. Or do
you have other concerns?

Note: We can pass |Element* target| so we don't have to call |target->toNode()|.

+    EventTarget* target,
+    InputEvent::InputType inputType,
+    const String& data,
+    DataTransfer::DataTransferType dataTransferType,
+    DataTransferAccessPolicy dataTransferAccessPolicy,
+    const RangeVector* ranges) {
+  if (!RuntimeEnabledFeatures::inputEventEnabled())
+    return DispatchEventResult::NotCanceled;
+  if (!target)
+    return DispatchEventResult::NotCanceled;
+
+  if (hasRichlyEditableStyle(*(target->toNode()))) {
+    DataTransfer* dataTransfer =
+        DataTransfer::create(dataTransferType, dataTransferAccessPolicy,
+                             DataObject::createFromString(data));
+
+    return dispatchBeforeInputDataTransfer(target, inputType, dataTransfer,
+                                           ranges);
+  } else {
+    // TODO(chongz): Pass appreciate |ranges| after it's defined on spec.
+    // http://w3c.github.io/editing/input-events.html#dom-inputevent-inputtype
+    InputEvent* beforeInputEvent = InputEvent::createBeforeInput(
+        inputType, data, InputEvent::EventCancelable::IsCancelable,
+        InputEvent::EventIsComposing::NotComposing, nullptr);
+    return target->dispatchEvent(beforeInputEvent);
+  }
+}
+
 InputEvent::InputType deletionInputTypeFromTextGranularity(
     DeleteDirection direction,
     TextGranularity granularity) {
   using InputType = InputEvent::InputType;
   switch (direction) {
     case DeleteDirection::Forward:
       if (granularity == WordGranularity)
         return InputType::DeleteWordForward;
       if (granularity == LineBoundary)
         return InputType::DeleteLineForward;
       return InputType::DeleteContentForward;
     case DeleteDirection::Backward:
       if (granularity == WordGranularity)
         return InputType::DeleteWordBackward;
       if (granularity == LineBoundary)
         return InputType::DeleteLineBackward;
       return InputType::DeleteContentBackward;
     default:
       return InputType::None;
   }
 }
 
 }  // namespace blink