| // 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/wm/window_positioning_utils.h" |
| #include "ash/common/wm/window_state.h" |
| #include "ash/common/wm_shell.h" |
| #include "ash/common/wm_window.h" |
| #include "ash/public/cpp/shell_window_ids.h" |
| #include "ash/shell.h" |
| #include "ash/wm/window_properties.h" |
| #include "ui/aura/window.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" |
| |
| namespace ash { |
| |
| // 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()->ConvertPixelsToDIP(&point_in_root); |
| |
| #if defined(USE_X11) || defined(USE_OZONE) |
| gfx::Rect host_bounds(root_window->GetHost()->GetBoundsInPixels().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()->ConvertDIPToScreenInPixels(&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->GetBoundsInPixels(); |
| if (native_bounds.Contains(location_in_native)) { |
| *target_root = root_windows[i]; |
| *point = location_in_native; |
| host->ConvertScreenInPixelsToDIP(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, WmWindow::ToAuraWindows(WmShell::Get()->GetAllRootWindows()), point, |
| &target_root); |
| ConvertPointToScreen(target_root, point); |
| } |
| |
| void ScreenPositionController::SetBounds(aura::Window* window, |
| const gfx::Rect& bounds, |
| const display::Display& display) { |
| if (!window->parent()->GetProperty(kUsesScreenCoordinatesKey)) { |
| window->SetBounds(bounds); |
| return; |
| } |
| |
| wm::SetBoundsInScreen(WmWindow::Get(window), bounds, display); |
| } |
| |
| } // namespace ash |