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screen_util.cc
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screen_util.cc
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// Copyright 2014 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/screen_util.h"
#include "ash/display/display_configuration_controller.h"
#include "ash/display/mirror_window_controller.h"
#include "ash/display/window_tree_host_manager.h"
#include "ash/root_window_controller.h"
#include "ash/shelf/shelf.h"
#include "ash/shell.h"
#include "base/logging.h"
#include "ui/aura/client/screen_position_client.h"
#include "ui/aura/window_event_dispatcher.h"
#include "ui/aura/window_tree_host.h"
#include "ui/display/display.h"
#include "ui/display/manager/display_manager.h"
#include "ui/display/screen.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/wm/core/coordinate_conversion.h"
namespace ash {
namespace screen_util {
gfx::Rect GetMaximizedWindowBoundsInParent(aura::Window* window) {
if (Shelf::ForWindow(window)->shelf_widget())
return GetDisplayWorkAreaBoundsInParent(window);
return GetDisplayBoundsInParent(window);
}
gfx::Rect GetDisplayBoundsInParent(aura::Window* window) {
gfx::Rect result =
display::Screen::GetScreen()->GetDisplayNearestWindow(window).bounds();
::wm::ConvertRectFromScreen(window->parent(), &result);
return result;
}
gfx::Rect GetDisplayWorkAreaBoundsInParent(aura::Window* window) {
gfx::Rect result =
display::Screen::GetScreen()->GetDisplayNearestWindow(window).work_area();
::wm::ConvertRectFromScreen(window->parent(), &result);
return result;
}
gfx::Rect GetDisplayWorkAreaBoundsInParentForLockScreen(aura::Window* window) {
gfx::Rect bounds = Shelf::ForWindow(window)->GetUserWorkAreaBounds();
::wm::ConvertRectFromScreen(window->parent(), &bounds);
return bounds;
}
gfx::Rect GetDisplayBoundsWithShelf(aura::Window* window) {
if (!Shell::Get()->display_manager()->IsInUnifiedMode())
return window->GetRootWindow()->bounds();
// In Unified Mode, the display that should contain the shelf depends on the
// current shelf alignment.
const display::Display shelf_display =
Shell::Get()
->display_configuration_controller()
->GetPrimaryMirroringDisplayForUnifiedDesktop();
DCHECK_NE(shelf_display.id(), display::kInvalidDisplayId);
gfx::RectF shelf_display_screen_bounds(shelf_display.bounds());
// Transform the bounds back to the unified host's coordinates.
auto inverse_unified_transform =
window->GetRootWindow()->GetHost()->GetInverseRootTransform();
inverse_unified_transform.TransformRect(&shelf_display_screen_bounds);
return gfx::ToEnclosingRect(shelf_display_screen_bounds);
}
gfx::Rect SnapBoundsToDisplayEdge(const gfx::Rect& bounds,
const aura::Window* window) {
const aura::WindowTreeHost* host = window->GetHost();
if (!host)
return bounds;
const float dsf = host->device_scale_factor();
const gfx::Rect display_bounds_in_pixel = host->GetBoundsInPixels();
const gfx::Rect display_bounds_in_dip = window->GetRootWindow()->bounds();
const gfx::Rect bounds_in_pixel = gfx::ScaleToEnclosedRect(bounds, dsf);
// Adjusts |bounds| such that the scaled enclosed bounds are atleast as big as
// the scaled enclosing unadjusted bounds.
gfx::Rect snapped_bounds = bounds;
if ((display_bounds_in_dip.width() == bounds.width() &&
bounds_in_pixel.width() != display_bounds_in_pixel.width()) ||
(bounds.right() == display_bounds_in_dip.width() &&
bounds_in_pixel.right() != display_bounds_in_pixel.width())) {
snapped_bounds.Inset(0, 0, -1, 0);
DCHECK_GE(gfx::ScaleToEnclosedRect(snapped_bounds, dsf).right(),
gfx::ScaleToEnclosingRect(bounds, dsf).right());
}
if ((display_bounds_in_dip.height() == bounds.height() &&
bounds_in_pixel.height() != display_bounds_in_pixel.height()) ||
(bounds.bottom() == display_bounds_in_dip.height() &&
bounds_in_pixel.bottom() != display_bounds_in_pixel.height())) {
snapped_bounds.Inset(0, 0, 0, -1);
DCHECK_GE(gfx::ScaleToEnclosedRect(snapped_bounds, dsf).bottom(),
gfx::ScaleToEnclosingRect(bounds, dsf).bottom());
}
return snapped_bounds;
}
} // namespace screen_util
} // namespace ash