components/view_manager/event_dispatcher.cc

   1 // Copyright 2015 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 "components/view_manager/event_dispatcher.h"
   6
   7 #include "components/view_manager/connection_manager.h"
   8 #include "components/view_manager/server_view.h"
   9 #include "components/view_manager/view_coordinate_conversions.h"
  10 #include "components/view_manager/view_locator.h"
  11 #include "ui/gfx/geometry/point.h"
  12 #include "ui/gfx/geometry/point_f.h"
  13
  14 namespace view_manager {
  15
  16 EventDispatcher::EventDispatcher(ConnectionManager* connection_manager)
  17     : connection_manager_(connection_manager) {
  18 }
  19
  20 EventDispatcher::~EventDispatcher() {
  21 }
  22
  23 void EventDispatcher::AddAccelerator(mojo::KeyboardCode keyboard_code,
  24                                      mojo::EventFlags flags) {
  25   accelerators_.insert(Accelerator(keyboard_code, flags));
  26 }
  27
  28 void EventDispatcher::RemoveAccelerator(mojo::KeyboardCode keyboard_code,
  29                                         mojo::EventFlags flags) {
  30   accelerators_.erase(Accelerator(keyboard_code, flags));
  31 }
  32
  33 void EventDispatcher::OnEvent(mojo::EventPtr event,
  34                               const OnEventCallback& callback) {
  35   callback.Run();
  36
  37   if (event->pointer_data) {
  38     const gfx::Point root_point(static_cast<int>(event->pointer_data->x),
  39                                 static_cast<int>(event->pointer_data->y));
  40     ServerView* target = connection_manager_->GetFocusedView();
  41     ;
  42     if (event->action == mojo::EVENT_TYPE_POINTER_DOWN || !target) {
  43       target = FindDeepestVisibleView(connection_manager_->root(), root_point);
  44       CHECK(target);
  45       connection_manager_->SetFocusedView(target);
  46     }
  47     const gfx::PointF local_point(ConvertPointFBetweenViews(
  48         connection_manager_->root(), target,
  49         gfx::PointF(event->pointer_data->x, event->pointer_data->y)));
  50     event->pointer_data->x = local_point.x();
  51     event->pointer_data->y = local_point.y();
  52     connection_manager_->DispatchInputEventToView(target, event.Pass());
  53   } else if (event->action == mojo::EVENT_TYPE_KEY_PRESSED &&
  54              accelerators_.count(Accelerator(event->key_data->windows_key_code,
  55                                              event->flags))) {
  56     connection_manager_->wm_internal()->OnAccelerator(event.Pass());
  57   } else {
  58     ServerView* focused_view = connection_manager_->GetFocusedView();
  59     if (focused_view)
  60       connection_manager_->DispatchInputEventToView(focused_view, event.Pass());
  61   }
  62 }
  63
  64 }  // namespace view_manager