// Copyright (c) 2012 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 "ash/display/screen_position_controller.h" #include "ash/display/display_controller.h" #include "ash/root_window_controller.h" #include "ash/shell.h" #include "ash/shell_window_ids.h" #include "ash/wm/coordinate_conversion.h" #include "ash/wm/system_modal_container_layout_manager.h" #include "ash/wm/window_properties.h" #include "ash/wm/window_state.h" #include "ui/aura/client/capture_client.h" #include "ui/aura/client/focus_client.h" #include "ui/aura/window_event_dispatcher.h" #include "ui/aura/window_tracker.h" #include "ui/compositor/dip_util.h" #include "ui/gfx/display.h" #include "ui/gfx/screen.h" #include "ui/wm/core/window_util.h" #include "ui/wm/public/activation_client.h" namespace ash { namespace { // Return true if the window or its ancestor has |kStayInSameRootWindowkey| // property. bool ShouldStayInSameRootWindow(const aura::Window* window) { return window && (window->GetProperty(kStayInSameRootWindowKey) || ShouldStayInSameRootWindow(window->parent())); } // Move all transient children to |dst_root|, including the ones in // the child windows and transient children of the transient children. void MoveAllTransientChildrenToNewRoot(const gfx::Display& display, aura::Window* window) { aura::Window* dst_root = Shell::GetInstance()->display_controller()-> GetRootWindowForDisplayId(display.id()); aura::Window::Windows transient_children = ::wm::GetTransientChildren(window); for (aura::Window::Windows::iterator iter = transient_children.begin(); iter != transient_children.end(); ++iter) { aura::Window* transient_child = *iter; int container_id = transient_child->parent()->id(); DCHECK_GE(container_id, 0); aura::Window* container = Shell::GetContainer(dst_root, container_id); gfx::Rect parent_bounds_in_screen = transient_child->GetBoundsInScreen(); container->AddChild(transient_child); transient_child->SetBoundsInScreen(parent_bounds_in_screen, display); // Transient children may have transient children. MoveAllTransientChildrenToNewRoot(display, transient_child); } // Move transient children of the child windows if any. aura::Window::Windows children = window->children(); for (aura::Window::Windows::iterator iter = children.begin(); iter != children.end(); ++iter) MoveAllTransientChildrenToNewRoot(display, *iter); } // Finds the root window at |location| in |window|'s coordinates and returns a // pair of root window and location in that root window's coordinates. The // function usually returns |window->GetRootWindow()|, but if the mouse pointer // is moved outside the |window|'s root while the mouse is captured, it returns // the other root window. std::pair<aura::Window*, gfx::Point> GetRootWindowRelativeToWindow( aura::Window* window, const gfx::Point& location) { aura::Window* root_window = window->GetRootWindow(); gfx::Point location_in_root(location); aura::Window::ConvertPointToTarget(window, root_window, &location_in_root); #if defined(USE_X11) || defined(USE_OZONE) if (!root_window->ContainsPointInRoot(location_in_root)) { // This conversion is necessary to deal with X's passive input // grab while dragging window. For example, if we have two // displays, say 1000x1000 (primary) and 500x500 (extended one // on the right), and start dragging a window at (999, 123), and // then move the pointer to the right, the pointer suddenly // warps to the extended display. The destination is (0, 123) in // the secondary root window's coordinates, or (1000, 123) in // the screen coordinates. However, since the mouse is captured // by X during drag, a weird LocatedEvent, something like (0, 1123) // in the *primary* root window's coordinates, is sent to Chrome // (Remember that in the native X11 world, the two root windows // are always stacked vertically regardless of the display // layout in Ash). We need to figure out that (0, 1123) in the // primary root window's coordinates is actually (0, 123) in the // extended root window's coordinates. // // For now Ozone works in a similar manner as X11. Transitioning from one // display's coordinate system to anothers may cause events in the // primary's coordinate system which fall in the extended display. gfx::Point location_in_native(location_in_root); root_window->GetHost()->ConvertPointToNativeScreen(&location_in_native); aura::Window::Windows root_windows = Shell::GetAllRootWindows(); for (size_t i = 0; i < root_windows.size(); ++i) { aura::WindowTreeHost* host = root_windows[i]->GetHost(); const gfx::Rect native_bounds = host->GetBounds(); if (native_bounds.Contains(location_in_native)) { root_window = root_windows[i]; location_in_root = location_in_native; host->ConvertPointFromNativeScreen(&location_in_root); break; } } } #else // TODO(yusukes): Support non-X11 platforms if necessary. NOTIMPLEMENTED(); #endif return std::make_pair(root_window, location_in_root); } } // namespace void ScreenPositionController::ConvertPointToScreen( const aura::Window* window, gfx::Point* point) { const aura::Window* root = window->GetRootWindow(); aura::Window::ConvertPointToTarget(window, root, point); const gfx::Point display_origin = Shell::GetScreen()->GetDisplayNearestWindow( const_cast<aura::Window*>(root)).bounds().origin(); point->Offset(display_origin.x(), display_origin.y()); } void ScreenPositionController::ConvertPointFromScreen( const aura::Window* window, gfx::Point* point) { const aura::Window* root = window->GetRootWindow(); const gfx::Point display_origin = Shell::GetScreen()->GetDisplayNearestWindow( const_cast<aura::Window*>(root)).bounds().origin(); point->Offset(-display_origin.x(), -display_origin.y()); aura::Window::ConvertPointToTarget(root, window, point); } void ScreenPositionController::ConvertHostPointToScreen( aura::Window* root_window, gfx::Point* point) { aura::Window* root = root_window->GetRootWindow(); root->GetHost()->ConvertPointFromHost(point); std::pair<aura::Window*, gfx::Point> pair = GetRootWindowRelativeToWindow(root, *point); *point = pair.second; ConvertPointToScreen(pair.first, point); } void ScreenPositionController::SetBounds(aura::Window* window, const gfx::Rect& bounds, const gfx::Display& display) { DCHECK_NE(-1, display.id()); if (!window->parent()->GetProperty(kUsesScreenCoordinatesKey)) { window->SetBounds(bounds); return; } // Don't move a window to other root window if: // a) the window is a transient window. It moves when its // transient_parent moves. // b) if the window or its ancestor has kStayInSameRootWindowkey. It's // intentionally kept in the same root window even if the bounds is // outside of the display. if (!::wm::GetTransientParent(window) && !ShouldStayInSameRootWindow(window)) { aura::Window* dst_root = Shell::GetInstance()->display_controller()->GetRootWindowForDisplayId( display.id()); DCHECK(dst_root); aura::Window* dst_container = NULL; if (dst_root != window->GetRootWindow()) { int container_id = window->parent()->id(); // All containers that uses screen coordinates must have valid window ids. DCHECK_GE(container_id, 0); // Don't move modal background. if (!SystemModalContainerLayoutManager::IsModalBackground(window)) dst_container = Shell::GetContainer(dst_root, container_id); } if (dst_container && window->parent() != dst_container) { aura::Window* focused = aura::client::GetFocusClient(window)-> GetFocusedWindow(); aura::client::ActivationClient* activation_client = aura::client::GetActivationClient(window->GetRootWindow()); aura::Window* active = activation_client->GetActiveWindow(); aura::WindowTracker tracker; if (focused) tracker.Add(focused); if (active && focused != active) tracker.Add(active); // Set new bounds now so that the container's layout manager // can adjust the bounds if necessary. gfx::Point origin = bounds.origin(); const gfx::Point display_origin = display.bounds().origin(); origin.Offset(-display_origin.x(), -display_origin.y()); gfx::Rect new_bounds = gfx::Rect(origin, bounds.size()); window->SetBounds(new_bounds); dst_container->AddChild(window); MoveAllTransientChildrenToNewRoot(display, window); // Restore focused/active window. if (tracker.Contains(focused)) { aura::client::GetFocusClient(window)->FocusWindow(focused); // TODO(beng): replace with GetRootWindow(). ash::Shell::GetInstance()->set_target_root_window( focused->GetRootWindow()); } else if (tracker.Contains(active)) { activation_client->ActivateWindow(active); } // TODO(oshima): We should not have to update the bounds again // below in theory, but we currently do need as there is a code // that assumes that the bounds will never be overridden by the // layout mananger. We should have more explicit control how // constraints are applied by the layout manager. } } gfx::Point origin(bounds.origin()); const gfx::Point display_origin = Shell::GetScreen()->GetDisplayNearestWindow( window).bounds().origin(); origin.Offset(-display_origin.x(), -display_origin.y()); window->SetBounds(gfx::Rect(origin, bounds.size())); } } // namespace ash