Implement "Look Up In Dictionary" context menu item asynchronously. (OS X)

content/browser/renderer_host/text_input_client_mac.mm

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "content/browser/renderer_host/text_input_client_mac.h"
 
 #include "base/memory/singleton.h"
 #include "base/metrics/histogram.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/time/time.h"
@@ skipping 18 matching lines @@
 }
 
 // static
 TextInputClientMac* TextInputClientMac::GetInstance() {
   return base::Singleton<TextInputClientMac>::get();
 }
 
 void TextInputClientMac::GetStringAtPoint(
     RenderWidgetHost* rwh,
     gfx::Point point,
-    void (^replyHandler)(NSAttributedString*, NSPoint)) {
-  DCHECK(replyHandler_.get() == nil);
-  replyHandler_.reset(replyHandler, base::scoped_policy::RETAIN);
+    void (^reply_handler)(NSAttributedString*, NSPoint)) {
+  DCHECK(replyForPointHandler_.get() == nil);
+  replyForPointHandler_.reset(reply_handler, base::scoped_policy::RETAIN);
   RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(rwh);
   rwhi->Send(new TextInputClientMsg_StringAtPoint(rwhi->GetRoutingID(), point));
 }
 
 void TextInputClientMac::GetStringAtPointReply(NSAttributedString* string,
                                                NSPoint point) {
-  if (replyHandler_.get()) {
-    replyHandler_.get()(string, point);
-    replyHandler_.reset();
+  if (replyForPointHandler_.get()) {
+    replyForPointHandler_.get()(string, point);
+    replyForPointHandler_.reset();
   }
 }
 
+void TextInputClientMac::GetStringFromRange(
+    RenderWidgetHost* rwh,
+    NSRange range,
+    void (^reply_handler)(NSAttributedString*, NSPoint)) {
+  DCHECK(replyForRangeHandler_.get() == nil);
+  replyForRangeHandler_.reset(reply_handler, base::scoped_policy::RETAIN);
+  RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(rwh);
+  rwhi->Send(new TextInputClientMsg_StringForRange(rwhi->GetRoutingID(),
+                                                   gfx::Range(range)));
+}
+
+void TextInputClientMac::GetStringFromRangeReply(NSAttributedString* string,
+                                                 NSPoint point) {
+  SetSubstringAndSignal(string);
+  if (replyForRangeHandler_.get()) {
+    replyForRangeHandler_.get()(string, point);
+    replyForRangeHandler_.reset();
+  }
+}
+
 NSUInteger TextInputClientMac::GetCharacterIndexAtPoint(RenderWidgetHost* rwh,
     gfx::Point point) {
   base::TimeTicks start = base::TimeTicks::Now();
 
   BeforeRequest();
   RenderWidgetHostImpl* rwhi = RenderWidgetHostImpl::From(rwh);
   rwhi->Send(new TextInputClientMsg_CharacterIndexForPoint(rwhi->GetRoutingID(),
                                                           point));
   // http://crbug.com/121917
   base::ThreadRestrictions::ScopedAllowWait allow_wait;
@@ skipping 85 matching lines @@
   character_index_ = NSNotFound;
   first_rect_ = NSZeroRect;
   substring_.reset();
 }
 
 void TextInputClientMac::AfterRequest() {
   lock_.Release();
 }
 
 }  // namespace content