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(ServerView* root, mojo::EventPtr event) {
  34   if (event->pointer_data) {
  35     const gfx::Point root_point(static_cast<int>(event->pointer_data->x),
  36                                 static_cast<int>(event->pointer_data->y));
  37     ServerView* target = connection_manager_->GetFocusedView();
  38     if (event->action == mojo::EVENT_TYPE_POINTER_DOWN || !target ||
  39         !root->Contains(target)) {
  40       target = FindDeepestVisibleView(root, root_point);
  41       CHECK(target);
  42       connection_manager_->SetFocusedView(target);
  43     }
  44     const gfx::PointF local_point(ConvertPointFBetweenViews(
  45         root, target,
  46         gfx::PointF(event->pointer_data->x, event->pointer_data->y)));
  47     event->pointer_data->x = local_point.x();
  48     event->pointer_data->y = local_point.y();
  49     connection_manager_->DispatchInputEventToView(target, event.Pass());
  50   } else if (event->action == mojo::EVENT_TYPE_KEY_PRESSED &&
  51              accelerators_.count(Accelerator(event->key_data->windows_key_code,
  52                                              event->flags))) {
  53     connection_manager_->OnAccelerator(root, event.Pass());
  54   } else {
  55     ServerView* focused_view = connection_manager_->GetFocusedView();
  56     if (focused_view)
  57       connection_manager_->DispatchInputEventToView(focused_view, event.Pass());
  58   }
  59 }
  60
  61 }  // namespace view_manager