src/ash/wm/event_rewriter_event_filter.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ash/wm/event_rewriter_event_filter.h"
   6
   7 #include "ash/event_rewriter_delegate.h"
   8 #include "base/logging.h"
   9 #include "ui/events/event.h"
  10
  11 namespace ash {
  12 namespace internal {
  13
  14 EventRewriterEventFilter::EventRewriterEventFilter() {}
  15
  16 EventRewriterEventFilter::~EventRewriterEventFilter() {}
  17
  18 void EventRewriterEventFilter::SetEventRewriterDelegate(
  19     scoped_ptr<EventRewriterDelegate> delegate) {
  20   delegate_ = delegate.Pass();
  21 }
  22
  23 void EventRewriterEventFilter::OnKeyEvent(ui::KeyEvent* event) {
  24   if (!delegate_)
  25     return;
  26
  27   // Do not consume a translated key event which is generated by an IME.
  28   if (event->type() == ui::ET_TRANSLATED_KEY_PRESS ||
  29       event->type() == ui::ET_TRANSLATED_KEY_RELEASE) {
  30     return;
  31   }
  32
  33   switch (delegate_->RewriteOrFilterKeyEvent(event)) {
  34     case EventRewriterDelegate::ACTION_REWRITE_EVENT:
  35       break;
  36     case EventRewriterDelegate::ACTION_DROP_EVENT:
  37       event->StopPropagation();
  38       break;
  39   }
  40 }
  41
  42 void EventRewriterEventFilter::OnMouseEvent(ui::MouseEvent* event) {
  43   if (!delegate_)
  44     return;
  45
  46   switch (delegate_->RewriteOrFilterLocatedEvent(event)) {
  47     case EventRewriterDelegate::ACTION_REWRITE_EVENT:
  48       break;
  49     case EventRewriterDelegate::ACTION_DROP_EVENT:
  50       event->StopPropagation();
  51       break;
  52   }
  53 }
  54
  55 }  // namespace internal
  56 }  // namespace ash