| // 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/common/shell_window_ids.h" |
| #include "ash/common/wm/window_state.h" |
| #include "ash/display/window_tree_host_manager.h" |
| #include "ash/root_window_controller.h" |
| #include "ash/shell.h" |
| #include "ash/wm/system_modal_container_layout_manager.h" |
| #include "ash/wm/window_properties.h" |
| #include "ui/aura/client/capture_client.h" |
| #include "ui/aura/client/focus_client.h" |
| #include "ui/aura/window.h" |
| #include "ui/aura/window_event_dispatcher.h" |
| #include "ui/aura/window_tracker.h" |
| #include "ui/aura/window_tree_host.h" |
| #include "ui/compositor/dip_util.h" |
| #include "ui/display/display.h" |
| #include "ui/display/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 display::Display& display, |
| aura::Window* window) { |
| aura::Window* dst_root = Shell::GetInstance() |
| ->window_tree_host_manager() |
| ->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); |
| } |
| |
| } // namespace |
| |
| // static |
| void ScreenPositionController::ConvertHostPointToRelativeToRootWindow( |
| aura::Window* root_window, |
| const aura::Window::Windows& root_windows, |
| gfx::Point* point, |
| aura::Window** target_root) { |
| DCHECK(!root_window->parent()); |
| gfx::Point point_in_root(*point); |
| root_window->GetHost()->ConvertPointFromHost(&point_in_root); |
| |
| #if defined(USE_X11) || defined(USE_OZONE) |
| gfx::Rect host_bounds(root_window->GetHost()->GetBounds().size()); |
| if (!host_bounds.Contains(*point)) { |
| // 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(point_in_root); |
| |
| root_window->GetHost()->ConvertPointToNativeScreen(&location_in_native); |
| |
| 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)) { |
| *target_root = root_windows[i]; |
| *point = location_in_native; |
| host->ConvertPointFromNativeScreen(point); |
| return; |
| } |
| } |
| } |
| #endif |
| *target_root = root_window; |
| *point = point_in_root; |
| } |
| |
| 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 = |
| display::Screen::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 = |
| display::Screen::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(); |
| aura::Window* target_root = nullptr; |
| ConvertHostPointToRelativeToRootWindow(root, Shell::GetAllRootWindows(), |
| point, &target_root); |
| ConvertPointToScreen(target_root, point); |
| } |
| |
| void ScreenPositionController::SetBounds(aura::Window* window, |
| const gfx::Rect& bounds, |
| const display::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() |
| ->window_tree_host_manager() |
| ->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 = display::Screen::GetScreen() |
| ->GetDisplayNearestWindow(window) |
| .bounds() |
| .origin(); |
| origin.Offset(-display_origin.x(), -display_origin.y()); |
| window->SetBounds(gfx::Rect(origin, bounds.size())); |
| } |
| |
| } // namespace ash |
