drag_drop_tracker.cc revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/drag_drop/drag_drop_tracker.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/shell.h" 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/shell_window_ids.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ash/wm/coordinate_conversion.h" 105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "ui/aura/client/activation_delegate.h" 111e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)#include "ui/aura/client/window_tree_client.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/aura/root_window.h" 131e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)#include "ui/aura/window.h" 14d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)#include "ui/events/event.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ui/gfx/screen.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 172a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace ash { 182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)namespace internal { 192a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// An activation delegate which disables activating the drag and drop window. 235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)class CaptureWindowActivationDelegate 245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) : public aura::client::ActivationDelegate { 255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) public: 265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) CaptureWindowActivationDelegate() {} 275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) virtual ~CaptureWindowActivationDelegate() {} 285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // aura::client::ActivationDelegate overrides: 305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) virtual bool ShouldActivate() const OVERRIDE { 315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return false; 325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) private: 355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(CaptureWindowActivationDelegate); 375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)}; 385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Creates a window for capturing drag events. 401e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)aura::Window* CreateCaptureWindow(aura::Window* context_root, 412a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) aura::WindowDelegate* delegate) { 425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) static CaptureWindowActivationDelegate* activation_delegate_instance = NULL; 435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!activation_delegate_instance) 445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) activation_delegate_instance = new CaptureWindowActivationDelegate; 452a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) aura::Window* window = new aura::Window(delegate); 465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) window->SetType(ui::wm::WINDOW_TYPE_NORMAL); 475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) window->Init(aura::WINDOW_LAYER_NOT_DRAWN); 481e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) aura::client::ParentWindowWithContext(window, context_root, gfx::Rect()); 495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) aura::client::SetActivationDelegate(window, activation_delegate_instance); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) window->Show(); 512a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) DCHECK(window->bounds().size().IsEmpty()); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return window; 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 571e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles)DragDropTracker::DragDropTracker(aura::Window* context_root, 582a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) aura::WindowDelegate* delegate) 592a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) : capture_window_(CreateCaptureWindow(context_root, delegate)) { 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)DragDropTracker::~DragDropTracker() { 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) capture_window_->ReleaseCapture(); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 662a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void DragDropTracker::TakeCapture() { 672a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) capture_window_->SetCapture(); 682a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)} 692a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)aura::Window* DragDropTracker::GetTarget(const ui::LocatedEvent& event) { 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(capture_window_.get()); 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Point location_in_screen = event.location(); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wm::ConvertPointToScreen(capture_window_.get(), 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &location_in_screen); 751e9bf3e0803691d0a228da41fc608347b6db4340Torne (Richard Coles) aura::Window* root_window_at_point = 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wm::GetRootWindowAt(location_in_screen); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Point location_in_root = location_in_screen; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) wm::ConvertPointFromScreen(root_window_at_point, &location_in_root); 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return root_window_at_point->GetEventHandlerForPoint(location_in_root); 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 822a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)ui::LocatedEvent* DragDropTracker::ConvertEvent( 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) aura::Window* target, 842a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const ui::LocatedEvent& event) { 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK(capture_window_.get()); 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Point target_location = event.location(); 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) aura::Window::ConvertPointToTarget(capture_window_.get(), target, 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &target_location); 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Point location_in_screen = event.location(); 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ash::wm::ConvertPointToScreen(capture_window_.get(), &location_in_screen); 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) gfx::Point target_root_location = event.root_location(); 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) aura::Window::ConvertPointToTarget( 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) capture_window_->GetRootWindow(), 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ash::wm::GetRootWindowAt(location_in_screen), 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) &target_root_location); 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return new ui::MouseEvent(event.type(), 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) target_location, 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) target_root_location, 995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) event.flags(), 1005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) static_cast<const ui::MouseEvent&>(event). 1015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) changed_button_flags()); 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace internal 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace ash 106