Rename KeyRewriter to EventRewriter since it now rewrites aura::LocationEvent in addition to aura::KeyEvent.

BUG=133510
TEST=unit_tests and aura_shell_unittests passed


Review URL: https://chromiumcodereview.appspot.com/10753008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@146496 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 34 insertions, 0 deletions

diff --git a/ash/event_rewriter_delegate.h b/ash/event_rewriter_delegate.h
new file mode 100644
index 0000000..340f283
--- /dev/null
+++ b/ash/event_rewriter_delegate.h
@@ -0,0 +1,34 @@
+// 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.
+
+#ifndef ASH_EVENT_REWRITER_DELEGATE_H_
+#define ASH_EVENT_REWRITER_DELEGATE_H_
+
+namespace aura {
+class KeyEvent;
+class LocatedEvent;
+}  // namespace aura
+
+namespace ash {
+
+// Delegate for rewriting or filtering an event.
+class EventRewriterDelegate {
+ public:
+  enum Action {
+    ACTION_REWRITE_EVENT,
+    ACTION_DROP_EVENT,
+  };
+
+  virtual ~EventRewriterDelegate() {}
+
+  // A derived class can do either of the following:
+  // 1) Just return ACTION_DROP_EVENT to drop the |event|.
+  // 2) Rewrite the |event| and return ACTION_REWRITE_EVENT.
+  virtual Action RewriteOrFilterKeyEvent(aura::KeyEvent* event) = 0;
+  virtual Action RewriteOrFilterLocatedEvent(aura::LocatedEvent* event) = 0;
+};
+
+}  // namespace ash
+
+#endif  // ASH_EVENT_REWRITER_DELEGATE_H_