wip: Second crack at implementing the touch exploration mode.

ui/aura/window_event_dispatcher.cc

 // Copyright 2014 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.
 
 #include "ui/aura/window_event_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 144 matching lines @@
                        ui::EF_NONE);
   DispatchDetails details =
       DispatchMouseEnterOrExit(event, ui::ET_MOUSE_EXITED);
   if (details.dispatcher_destroyed)
     return;
 }
 
 void WindowEventDispatcher::ProcessedTouchEvent(ui::TouchEvent* event,
                                                 Window* window,
                                                 ui::EventResult result) {
+  LOG(ERROR) << "WED::ProcessedTouchEvent, type=" << event->type();

[Daniel Erat, 2014/04/18 00:44:08]

delete, also below

   scoped_ptr<ui::GestureRecognizer::Gestures> gestures;
   gestures.reset(ui::GestureRecognizer::Get()->
       ProcessTouchEventForGesture(*event, result, window));
   DispatchDetails details = ProcessGestures(gestures.get());
   if (details.dispatcher_destroyed)
     return;
 }
 
 void WindowEventDispatcher::HoldPointerMoves() {
   if (!move_hold_count_)
@@ skipping 550 matching lines @@
 void WindowEventDispatcher::PreDispatchMouseEvent(Window* target,
                                                   ui::MouseEvent* event) {
   client::CursorClient* cursor_client = client::GetCursorClient(window());
   // We allow synthesized mouse exit events through even if mouse events are
   // disabled. This ensures that hover state, etc on controls like buttons is
   // cleared.
   if (cursor_client &&
       !cursor_client->IsMouseEventsEnabled() &&
       (event->flags() & ui::EF_IS_SYNTHESIZED) &&
       (event->type() != ui::ET_MOUSE_EXITED)) {
+    LOG(ERROR) << "WindowEventDispatcher::PreDispatchMouseEvent - handled";
     event->SetHandled();
     return;
   }
 
   if (IsEventCandidateForHold(*event) && !dispatching_held_event_) {
     if (move_hold_count_) {
       if (!(event->flags() & ui::EF_IS_SYNTHESIZED) &&
           event->type() != ui::ET_MOUSE_CAPTURE_CHANGED) {
         SetLastMouseLocation(window(), event->root_location());
       }
@@ skipping 108 matching lines @@
       break;
 
     default:
       NOTREACHED();
       break;
   }
   PreDispatchLocatedEvent(target, event);
 }
 
 }  // namespace aura