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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "headless/lib/browser/headless_screen.h"
#include <optional>
#include "base/check_deref.h"
#include "base/containers/flat_set.h"
#include "base/notimplemented.h"
#include "components/headless/display_util/headless_display_util.h"
#include "components/headless/screen_info/headless_screen_info.h"
#include "ui/display/display_finder.h"
#include "ui/display/display_list.h"
#include "ui/display/util/display_util.h"
#if defined(USE_AURA)
#include "ui/aura/window.h"
#endif
namespace headless {
// static
HeadlessScreen* HeadlessScreen::Create(const gfx::Size& window_size,
std::string_view screen_info_spec) {
return new HeadlessScreen(window_size, screen_info_spec);
}
HeadlessScreen::~HeadlessScreen() = default;
gfx::Point HeadlessScreen::GetCursorScreenPoint() {
return gfx::Point();
}
bool HeadlessScreen::IsWindowUnderCursor(gfx::NativeWindow window) {
return GetWindowAtScreenPoint(GetCursorScreenPoint()) == window;
}
gfx::NativeWindow HeadlessScreen::GetWindowAtScreenPoint(
const gfx::Point& point) {
return gfx::NativeWindow();
}
gfx::NativeWindow HeadlessScreen::GetLocalProcessWindowAtPoint(
const gfx::Point& point,
const std::set<gfx::NativeWindow>& ignore) {
return gfx::NativeWindow();
}
display::Display HeadlessScreen::GetDisplayNearestWindow(
gfx::NativeWindow window) const {
// On Windows and Linux native window is abstracted by aura::Window so we can
// use its bounds to find the nearest display.
#if defined(USE_AURA)
if (window) {
const gfx::Rect bounds = window->GetBoundsInScreen();
if (std::optional<display::Display> display =
GetDisplayFromScreenRect(display_list().displays(), bounds)) {
return display.value();
}
}
#else
NOTIMPLEMENTED_LOG_ONCE();
#endif // #if defined(USE_AURA)
return GetPrimaryDisplay();
}
HeadlessScreen::HeadlessScreen(const gfx::Size& window_size,
std::string_view screen_info_spec) {
std::vector<HeadlessScreenInfo> screen_info;
if (screen_info_spec.empty()) {
screen_info.push_back(
HeadlessScreenInfo({.bounds = gfx::Rect(window_size)}));
} else {
screen_info = HeadlessScreenInfo::FromString(screen_info_spec).value();
CHECK(!screen_info.empty());
}
bool is_primary = true;
base::flat_set<int64_t> internal_display_ids;
for (const auto& it : screen_info) {
static int64_t synthesized_display_id = 2000;
display::Display display(synthesized_display_id++);
display.set_label(it.label);
display.set_color_depth(it.color_depth);
display.SetScaleAndBounds(it.device_pixel_ratio, it.bounds);
if (!it.work_area_insets.IsEmpty()) {
display.UpdateWorkAreaFromInsets(it.work_area_insets);
}
if (it.rotation) {
CHECK(display::Display::IsValidRotation(it.rotation));
display.SetRotationAsDegree(it.rotation);
}
if (it.is_internal) {
internal_display_ids.insert(display.id());
}
is_natural_landscape_map_.insert({display.id(), display.is_landscape()});
ProcessDisplayChanged(display, is_primary);
is_primary = false;
}
display::SetInternalDisplayIds(internal_display_ids);
}
bool HeadlessScreen::IsNaturalPortrait(int64_t display_id) const {
return !IsNaturalLandscape(display_id);
}
bool HeadlessScreen::IsNaturalLandscape(int64_t display_id) const {
auto it = is_natural_landscape_map_.find(display_id);
return it != is_natural_landscape_map_.end() ? it->second : true;
}
// static
void HeadlessScreen::UpdateScreenSizeForScreenOrientation(
int64_t display_id,
display::mojom::ScreenOrientation screen_orientation) {
auto& headless_screen =
CHECK_DEREF(static_cast<HeadlessScreen*>(GetScreen()));
headless_screen.UpdateScreenSizeForScreenOrientationImpl(display_id,
screen_orientation);
}
void HeadlessScreen::UpdateScreenSizeForScreenOrientationImpl(
int64_t display_id,
display::mojom::ScreenOrientation screen_orientation) {
display::Display display = GetDisplayById(display_id);
bool needs_swap = false;
switch (screen_orientation) {
case display::mojom::ScreenOrientation::kUndefined:
break;
case display::mojom::ScreenOrientation::kPortraitPrimary:
needs_swap = display.is_landscape();
display.set_panel_rotation(IsNaturalPortrait(display_id)
? display::Display::ROTATE_0
: display::Display::ROTATE_90);
break;
case display::mojom::ScreenOrientation::kPortraitSecondary:
needs_swap = display.is_landscape();
display.set_panel_rotation(IsNaturalPortrait(display_id)
? display::Display::ROTATE_180
: display::Display::ROTATE_270);
break;
case display::mojom::ScreenOrientation::kLandscapePrimary:
needs_swap = !display.is_landscape();
display.set_panel_rotation(IsNaturalLandscape(display_id)
? display::Display::ROTATE_0
: display::Display::ROTATE_90);
break;
case display::mojom::ScreenOrientation::kLandscapeSecondary:
needs_swap = !display.is_landscape();
display.set_panel_rotation(IsNaturalLandscape(display_id)
? display::Display::ROTATE_180
: display::Display::ROTATE_270);
break;
}
// Swap display width and height to change its orientation.
if (needs_swap) {
gfx::Rect bounds = display.bounds();
int old_width = bounds.width();
bounds.set_width(bounds.height());
bounds.set_height(old_width);
display.set_bounds(bounds);
}
// Update display even if there was no swap.
bool is_primary = display.id() == GetPrimaryDisplay().id();
ProcessDisplayChanged(display, is_primary);
}
display::Display HeadlessScreen::GetDisplayById(int64_t display_id) {
auto it = display_list().FindDisplayById(display_id);
if (it != display_list().displays().end()) {
return *it;
}
return GetPrimaryDisplay();
}
} // namespace headless
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