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chromium / chromium / src / e6d181417ea462ac221d768c960a21018266a4a8 / . / ash / display / display_manager.cc
blob: 1bc2c479befce37f27d6a9f0d2bb3fc177e126f8 [file] [log] [blame]
// 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/display_manager.h"
#include <algorithm>
#include <cmath>
#include <limits>
#include <map>
#include <set>
#include <string>
#include <utility>
#include <vector>
#include "ash/common/ash_switches.h"
#include "ash/display/display_layout_store.h"
#include "ash/display/display_util.h"
#include "ash/display/extended_mouse_warp_controller.h"
#include "ash/display/null_mouse_warp_controller.h"
#include "ash/display/screen_ash.h"
#include "ash/display/unified_mouse_warp_controller.h"
#include "ash/screen_util.h"
#include "ash/shell.h"
#include "base/auto_reset.h"
#include "base/command_line.h"
#include "base/logging.h"
#include "base/memory/ptr_util.h"
#include "base/metrics/histogram.h"
#include "base/run_loop.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_split.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/threading/thread_task_runner_handle.h"
#include "grit/ash_strings.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/display/display.h"
#include "ui/display/display_observer.h"
#include "ui/display/screen.h"
#include "ui/gfx/font_render_params.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/size_conversions.h"
#if defined(USE_X11)
#include "ui/base/x/x11_util.h" // nogncheck
#endif
#if defined(OS_CHROMEOS)
#include "base/sys_info.h"
#endif
#if defined(OS_WIN)
#include "base/win/windows_version.h"
#endif
namespace ash {
typedef std::vector<DisplayInfo> DisplayInfoList;
namespace {
// We need to keep this in order for unittests to tell if
// the object in display::Screen::GetScreenByType is for shutdown.
display::Screen* screen_for_shutdown = nullptr;
// The number of pixels to overlap between the primary and secondary displays,
// in case that the offset value is too large.
const int kMinimumOverlapForInvalidOffset = 100;
struct DisplaySortFunctor {
bool operator()(const display::Display& a, const display::Display& b) {
return CompareDisplayIds(a.id(), b.id());
}
};
struct DisplayInfoSortFunctor {
bool operator()(const DisplayInfo& a, const DisplayInfo& b) {
return CompareDisplayIds(a.id(), b.id());
}
};
display::Display& GetInvalidDisplay() {
static display::Display* invalid_display = new display::Display();
return *invalid_display;
}
std::vector<DisplayMode>::const_iterator FindDisplayMode(
const DisplayInfo& info,
const DisplayMode& target_mode) {
const std::vector<DisplayMode>& modes = info.display_modes();
return std::find_if(modes.begin(), modes.end(),
[target_mode](const DisplayMode& mode) {
return target_mode.IsEquivalent(mode);
});
}
void SetInternalDisplayModeList(DisplayInfo* info) {
DisplayMode native_mode;
native_mode.size = info->bounds_in_native().size();
native_mode.device_scale_factor = info->device_scale_factor();
native_mode.ui_scale = 1.0f;
info->SetDisplayModes(CreateInternalDisplayModeList(native_mode));
}
void MaybeInitInternalDisplay(DisplayInfo* info) {
int64_t id = info->id();
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (command_line->HasSwitch(switches::kAshUseFirstDisplayAsInternal)) {
display::Display::SetInternalDisplayId(id);
SetInternalDisplayModeList(info);
}
}
gfx::Size GetMaxNativeSize(const DisplayInfo& info) {
gfx::Size size;
for (auto& mode : info.display_modes()) {
if (mode.size.GetArea() > size.GetArea())
size = mode.size;
}
return size;
}
} // namespace
using std::string;
using std::vector;
// static
int64_t DisplayManager::kUnifiedDisplayId = -10;
DisplayManager::DisplayManager()
: delegate_(nullptr),
screen_(new ScreenAsh),
layout_store_(new DisplayLayoutStore),
first_display_id_(display::Display::kInvalidDisplayID),
num_connected_displays_(0),
force_bounds_changed_(false),
change_display_upon_host_resize_(false),
multi_display_mode_(EXTENDED),
current_default_multi_display_mode_(EXTENDED),
mirroring_display_id_(display::Display::kInvalidDisplayID),
registered_internal_display_rotation_lock_(false),
registered_internal_display_rotation_(display::Display::ROTATE_0),
unified_desktop_enabled_(false),
weak_ptr_factory_(this) {
#if defined(OS_CHROMEOS)
change_display_upon_host_resize_ = !base::SysInfo::IsRunningOnChromeOS();
unified_desktop_enabled_ = base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kAshEnableUnifiedDesktop);
#endif
display::Screen* current = display::Screen::GetScreen();
// If there is no native, or the native was for shutdown,
// use ash's screen.
if (!current || current == screen_for_shutdown)
display::Screen::SetScreenInstance(screen_.get());
}
DisplayManager::~DisplayManager() {
#if defined(OS_CHROMEOS)
// Reset the font params.
gfx::SetFontRenderParamsDeviceScaleFactor(1.0f);
#endif
}
bool DisplayManager::InitFromCommandLine() {
DisplayInfoList info_list;
base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
if (!command_line->HasSwitch(switches::kAshHostWindowBounds))
return false;
const string size_str =
command_line->GetSwitchValueASCII(switches::kAshHostWindowBounds);
for (const std::string& part : base::SplitString(
size_str, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL)) {
info_list.push_back(DisplayInfo::CreateFromSpec(part));
info_list.back().set_native(true);
}
MaybeInitInternalDisplay(&info_list[0]);
if (info_list.size() > 1 &&
command_line->HasSwitch(switches::kAshEnableSoftwareMirroring)) {
SetMultiDisplayMode(MIRRORING);
}
OnNativeDisplaysChanged(info_list);
return true;
}
void DisplayManager::InitDefaultDisplay() {
DisplayInfoList info_list;
info_list.push_back(DisplayInfo::CreateFromSpec(std::string()));
info_list.back().set_native(true);
MaybeInitInternalDisplay(&info_list[0]);
OnNativeDisplaysChanged(info_list);
}
void DisplayManager::RefreshFontParams() {
#if defined(OS_CHROMEOS)
// Use the largest device scale factor among currently active displays. Non
// internal display may have bigger scale factor in case the external display
// is an 4K display.
float largest_device_scale_factor = 1.0f;
for (const display::Display& display : active_display_list_) {
const ash::DisplayInfo& info = display_info_[display.id()];
largest_device_scale_factor = std::max(
largest_device_scale_factor, info.GetEffectiveDeviceScaleFactor());
}
gfx::SetFontRenderParamsDeviceScaleFactor(largest_device_scale_factor);
#endif // OS_CHROMEOS
}
const display::DisplayLayout& DisplayManager::GetCurrentDisplayLayout() const {
DCHECK_LE(2U, num_connected_displays());
if (num_connected_displays() > 1) {
display::DisplayIdList list = GetCurrentDisplayIdList();
return layout_store_->GetRegisteredDisplayLayout(list);
}
LOG(ERROR) << "DisplayLayout is requested for single display";
// On release build, just fallback to default instead of blowing up.
static display::DisplayLayout layout;
layout.primary_id = active_display_list_[0].id();
return layout;
}
display::DisplayIdList DisplayManager::GetCurrentDisplayIdList() const {
if (IsInUnifiedMode()) {
return CreateDisplayIdList(software_mirroring_display_list_);
} else if (IsInMirrorMode()) {
if (software_mirroring_enabled()) {
CHECK_EQ(2u, num_connected_displays());
// This comment is to make it easy to distinguish the crash
// between two checks.
CHECK_EQ(1u, active_display_list_.size());
}
int64_t ids[] = {active_display_list_[0].id(), mirroring_display_id_};
return ash::GenerateDisplayIdList(std::begin(ids), std::end(ids));
} else {
CHECK_LE(2u, active_display_list_.size());
return CreateDisplayIdList(active_display_list_);
}
}
void DisplayManager::SetLayoutForCurrentDisplays(
std::unique_ptr<display::DisplayLayout> layout) {
if (GetNumDisplays() == 1)
return;
const display::DisplayIdList list = GetCurrentDisplayIdList();
DCHECK(display::DisplayLayout::Validate(list, *layout));
const display::DisplayLayout& current_layout =
layout_store_->GetRegisteredDisplayLayout(list);
if (layout->HasSamePlacementList(current_layout))
return;
layout_store_->RegisterLayoutForDisplayIdList(list, std::move(layout));
if (delegate_)
delegate_->PreDisplayConfigurationChange(false);
// TODO(oshima): Call UpdateDisplays instead.
std::vector<int64_t> updated_ids;
ApplyDisplayLayout(GetCurrentDisplayLayout(), &active_display_list_,
&updated_ids);
for (int64_t id : updated_ids) {
screen_->NotifyMetricsChanged(
GetDisplayForId(id),
display::DisplayObserver::DISPLAY_METRIC_BOUNDS |
display::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
}
if (delegate_)
delegate_->PostDisplayConfigurationChange();
}
const display::Display& DisplayManager::GetDisplayForId(int64_t id) const {
display::Display* display =
const_cast<DisplayManager*>(this)->FindDisplayForId(id);
return display ? *display : GetInvalidDisplay();
}
const display::Display& DisplayManager::FindDisplayContainingPoint(
const gfx::Point& point_in_screen) const {
int index =
FindDisplayIndexContainingPoint(active_display_list_, point_in_screen);
return index < 0 ? GetInvalidDisplay() : active_display_list_[index];
}
bool DisplayManager::UpdateWorkAreaOfDisplay(int64_t display_id,
const gfx::Insets& insets) {
display::Display* display = FindDisplayForId(display_id);
DCHECK(display);
gfx::Rect old_work_area = display->work_area();
display->UpdateWorkAreaFromInsets(insets);
return old_work_area != display->work_area();
}
void DisplayManager::SetOverscanInsets(int64_t display_id,
const gfx::Insets& insets_in_dip) {
bool update = false;
DisplayInfoList display_info_list;
for (const auto& display : active_display_list_) {
DisplayInfo info = GetDisplayInfo(display.id());
if (info.id() == display_id) {
if (insets_in_dip.IsEmpty()) {
info.set_clear_overscan_insets(true);
} else {
info.set_clear_overscan_insets(false);
info.SetOverscanInsets(insets_in_dip);
}
update = true;
}
display_info_list.push_back(info);
}
if (update) {
AddMirrorDisplayInfoIfAny(&display_info_list);
UpdateDisplaysWith(display_info_list);
} else {
display_info_[display_id].SetOverscanInsets(insets_in_dip);
}
}
void DisplayManager::SetDisplayRotation(
int64_t display_id,
display::Display::Rotation rotation,
display::Display::RotationSource source) {
if (IsInUnifiedMode())
return;
DisplayInfoList display_info_list;
bool is_active = false;
for (const auto& display : active_display_list_) {
DisplayInfo info = GetDisplayInfo(display.id());
if (info.id() == display_id) {
if (info.GetRotation(source) == rotation &&
info.GetActiveRotation() == rotation) {
return;
}
info.SetRotation(rotation, source);
is_active = true;
}
display_info_list.push_back(info);
}
if (is_active) {
AddMirrorDisplayInfoIfAny(&display_info_list);
UpdateDisplaysWith(display_info_list);
} else if (display_info_.find(display_id) != display_info_.end()) {
// Inactive displays can reactivate, ensure they have been updated.
display_info_[display_id].SetRotation(rotation, source);
}
}
bool DisplayManager::SetDisplayMode(int64_t display_id,
const DisplayMode& display_mode) {
bool change_ui_scale = GetDisplayIdForUIScaling() == display_id;
DisplayInfoList display_info_list;
bool display_property_changed = false;
bool resolution_changed = false;
for (const auto& display : active_display_list_) {
DisplayInfo info = GetDisplayInfo(display.id());
if (info.id() == display_id) {
auto iter = FindDisplayMode(info, display_mode);
if (iter == info.display_modes().end()) {
LOG(WARNING) << "Unsupported display mode was requested:"
<< "size=" << display_mode.size.ToString()
<< ", ui scale=" << display_mode.ui_scale
<< ", scale fator=" << display_mode.device_scale_factor;
return false;
}
if (change_ui_scale) {
if (info.configured_ui_scale() == display_mode.ui_scale)
return true;
info.set_configured_ui_scale(display_mode.ui_scale);
display_property_changed = true;
} else {
display_modes_[display_id] = *iter;
if (info.bounds_in_native().size() != display_mode.size)
resolution_changed = true;
if (info.device_scale_factor() != display_mode.device_scale_factor) {
info.set_device_scale_factor(display_mode.device_scale_factor);
display_property_changed = true;
}
}
}
display_info_list.push_back(info);
}
if (display_property_changed) {
AddMirrorDisplayInfoIfAny(&display_info_list);
UpdateDisplaysWith(display_info_list);
}
if (resolution_changed && IsInUnifiedMode()) {
ReconfigureDisplays();
#if defined(OS_CHROMEOS)
} else if (resolution_changed && base::SysInfo::IsRunningOnChromeOS()) {
Shell::GetInstance()->display_configurator()->OnConfigurationChanged();
#endif
}
return resolution_changed || display_property_changed;
}
void DisplayManager::RegisterDisplayProperty(
int64_t display_id,
display::Display::Rotation rotation,
float ui_scale,
const gfx::Insets* overscan_insets,
const gfx::Size& resolution_in_pixels,
float device_scale_factor,
ui::ColorCalibrationProfile color_profile) {
if (display_info_.find(display_id) == display_info_.end())
display_info_[display_id] = DisplayInfo(display_id, std::string(), false);
// Do not allow rotation in unified desktop mode.
if (display_id == kUnifiedDisplayId)
rotation = display::Display::ROTATE_0;
display_info_[display_id].SetRotation(rotation,
display::Display::ROTATION_SOURCE_USER);
display_info_[display_id].SetRotation(
rotation, display::Display::ROTATION_SOURCE_ACTIVE);
display_info_[display_id].SetColorProfile(color_profile);
// Just in case the preference file was corrupted.
// TODO(mukai): register |display_modes_| here as well, so the lookup for the
// default mode in GetActiveModeForDisplayId() gets much simpler.
if (0.5f <= ui_scale && ui_scale <= 2.0f)
display_info_[display_id].set_configured_ui_scale(ui_scale);
if (overscan_insets)
display_info_[display_id].SetOverscanInsets(*overscan_insets);
if (!resolution_in_pixels.IsEmpty()) {
DCHECK(!display::Display::IsInternalDisplayId(display_id));
// Default refresh rate, until OnNativeDisplaysChanged() updates us with the
// actual display info, is 60 Hz.
DisplayMode mode(resolution_in_pixels, 60.0f, false, false);
mode.device_scale_factor = device_scale_factor;
display_modes_[display_id] = mode;
}
}
DisplayMode DisplayManager::GetActiveModeForDisplayId(
int64_t display_id) const {
DisplayMode selected_mode;
if (GetSelectedModeForDisplayId(display_id, &selected_mode))
return selected_mode;
// If 'selected' mode is empty, it should return the default mode. This means
// the native mode for the external display. Unfortunately this is not true
// for the internal display because restoring UI-scale doesn't register the
// restored mode to |display_mode_|, so it needs to look up the mode whose
// UI-scale value matches. See the TODO in RegisterDisplayProperty().
const DisplayInfo& info = GetDisplayInfo(display_id);
for (auto& mode : info.display_modes()) {
if (GetDisplayIdForUIScaling() == display_id) {
if (info.configured_ui_scale() == mode.ui_scale)
return mode;
} else if (mode.native) {
return mode;
}
}
return selected_mode;
}
void DisplayManager::RegisterDisplayRotationProperties(
bool rotation_lock,
display::Display::Rotation rotation) {
if (delegate_)
delegate_->PreDisplayConfigurationChange(false);
registered_internal_display_rotation_lock_ = rotation_lock;
registered_internal_display_rotation_ = rotation;
if (delegate_)
delegate_->PostDisplayConfigurationChange();
}
bool DisplayManager::GetSelectedModeForDisplayId(int64_t id,
DisplayMode* mode_out) const {
std::map<int64_t, DisplayMode>::const_iterator iter = display_modes_.find(id);
if (iter == display_modes_.end())
return false;
*mode_out = iter->second;
return true;
}
bool DisplayManager::IsDisplayUIScalingEnabled() const {
return GetDisplayIdForUIScaling() != display::Display::kInvalidDisplayID;
}
gfx::Insets DisplayManager::GetOverscanInsets(int64_t display_id) const {
std::map<int64_t, DisplayInfo>::const_iterator it =
display_info_.find(display_id);
return (it != display_info_.end()) ? it->second.overscan_insets_in_dip()
: gfx::Insets();
}
void DisplayManager::SetColorCalibrationProfile(
int64_t display_id,
ui::ColorCalibrationProfile profile) {
#if defined(OS_CHROMEOS)
if (!display_info_[display_id].IsColorProfileAvailable(profile))
return;
if (delegate_)
delegate_->PreDisplayConfigurationChange(false);
// Just sets color profile if it's not running on ChromeOS (like tests).
if (!base::SysInfo::IsRunningOnChromeOS() ||
Shell::GetInstance()->display_configurator()->SetColorCalibrationProfile(
display_id, profile)) {
display_info_[display_id].SetColorProfile(profile);
UMA_HISTOGRAM_ENUMERATION("ChromeOS.Display.ColorProfile", profile,
ui::NUM_COLOR_PROFILES);
}
if (delegate_)
delegate_->PostDisplayConfigurationChange();
#endif
}
void DisplayManager::OnNativeDisplaysChanged(
const std::vector<DisplayInfo>& updated_displays) {
if (updated_displays.empty()) {
VLOG(1) << "OnNativeDisplaysChanged(0): # of current displays="
<< active_display_list_.size();
// If the device is booted without display, or chrome is started
// without --ash-host-window-bounds on linux desktop, use the
// default display.
if (active_display_list_.empty()) {
std::vector<DisplayInfo> init_displays;
init_displays.push_back(DisplayInfo::CreateFromSpec(std::string()));
MaybeInitInternalDisplay(&init_displays[0]);
OnNativeDisplaysChanged(init_displays);
} else {
// Otherwise don't update the displays when all displays are disconnected.
// This happens when:
// - the device is idle and powerd requested to turn off all displays.
// - the device is suspended. (kernel turns off all displays)
// - the internal display's brightness is set to 0 and no external
// display is connected.
// - the internal display's brightness is 0 and external display is
// disconnected.
// The display will be updated when one of displays is turned on, and the
// display list will be updated correctly.
}
return;
}
first_display_id_ = updated_displays[0].id();
std::set<gfx::Point> origins;
if (updated_displays.size() == 1) {
VLOG(1) << "OnNativeDisplaysChanged(1):" << updated_displays[0].ToString();
} else {
VLOG(1) << "OnNativeDisplaysChanged(" << updated_displays.size()
<< ") [0]=" << updated_displays[0].ToString()
<< ", [1]=" << updated_displays[1].ToString();
}
bool internal_display_connected = false;
num_connected_displays_ = updated_displays.size();
mirroring_display_id_ = display::Display::kInvalidDisplayID;
software_mirroring_display_list_.clear();
DisplayInfoList new_display_info_list;
for (DisplayInfoList::const_iterator iter = updated_displays.begin();
iter != updated_displays.end(); ++iter) {
if (!internal_display_connected)
internal_display_connected =
display::Display::IsInternalDisplayId(iter->id());
// Mirrored monitors have the same origins.
gfx::Point origin = iter->bounds_in_native().origin();
if (origins.find(origin) != origins.end()) {
InsertAndUpdateDisplayInfo(*iter);
mirroring_display_id_ = iter->id();
} else {
origins.insert(origin);
new_display_info_list.push_back(*iter);
}
DisplayMode new_mode;
new_mode.size = iter->bounds_in_native().size();
new_mode.device_scale_factor = iter->device_scale_factor();
new_mode.ui_scale = iter->configured_ui_scale();
const std::vector<DisplayMode>& display_modes = iter->display_modes();
// This is empty the displays are initialized from InitFromCommandLine.
if (!display_modes.size())
continue;
auto display_modes_iter = FindDisplayMode(*iter, new_mode);
// Update the actual resolution selected as the resolution request may fail.
if (display_modes_iter == display_modes.end())
display_modes_.erase(iter->id());
else if (display_modes_.find(iter->id()) != display_modes_.end())
display_modes_[iter->id()] = *display_modes_iter;
}
if (display::Display::HasInternalDisplay() && !internal_display_connected) {
if (display_info_.find(display::Display::InternalDisplayId()) ==
display_info_.end()) {
// Create a dummy internal display if the chrome restarted
// in docked mode.
DisplayInfo internal_display_info(
display::Display::InternalDisplayId(),
l10n_util::GetStringUTF8(IDS_ASH_INTERNAL_DISPLAY_NAME),
false /*Internal display must not have overscan */);
internal_display_info.SetBounds(gfx::Rect(0, 0, 800, 600));
display_info_[display::Display::InternalDisplayId()] =
internal_display_info;
} else {
// Internal display is no longer active. Reset its rotation to user
// preference, so that it is restored when the internal display becomes
// active again.
display::Display::Rotation user_rotation =
display_info_[display::Display::InternalDisplayId()].GetRotation(
display::Display::ROTATION_SOURCE_USER);
display_info_[display::Display::InternalDisplayId()].SetRotation(
user_rotation, display::Display::ROTATION_SOURCE_USER);
}
}
#if defined(OS_CHROMEOS)
if (!base::SysInfo::IsRunningOnChromeOS() &&
new_display_info_list.size() > 1) {
display::DisplayIdList list = GenerateDisplayIdList(
new_display_info_list.begin(), new_display_info_list.end(),
[](const DisplayInfo& info) { return info.id(); });
const display::DisplayLayout& layout =
layout_store_->GetRegisteredDisplayLayout(list);
// Mirror mode is set by DisplayConfigurator on the device.
// Emulate it when running on linux desktop.
if (layout.mirrored)
SetMultiDisplayMode(MIRRORING);
}
#endif
UpdateDisplaysWith(new_display_info_list);
}
void DisplayManager::UpdateDisplays() {
DisplayInfoList display_info_list;
for (const auto& display : active_display_list_)
display_info_list.push_back(GetDisplayInfo(display.id()));
AddMirrorDisplayInfoIfAny(&display_info_list);
UpdateDisplaysWith(display_info_list);
}
void DisplayManager::UpdateDisplaysWith(
const std::vector<DisplayInfo>& updated_display_info_list) {
#if defined(OS_WIN)
DCHECK_EQ(1u, updated_display_info_list.size())
<< ": Multiple display test does not work on Windows bots. Please "
"skip (don't disable) the test using SupportsMultipleDisplays()";
#endif
DisplayInfoList new_display_info_list = updated_display_info_list;
std::sort(active_display_list_.begin(), active_display_list_.end(),
DisplaySortFunctor());
std::sort(new_display_info_list.begin(), new_display_info_list.end(),
DisplayInfoSortFunctor());
if (new_display_info_list.size() > 1) {
display::DisplayIdList list = GenerateDisplayIdList(
new_display_info_list.begin(), new_display_info_list.end(),
[](const DisplayInfo& info) { return info.id(); });
const display::DisplayLayout& layout =
layout_store_->GetRegisteredDisplayLayout(list);
current_default_multi_display_mode_ =
(layout.default_unified && unified_desktop_enabled_) ? UNIFIED
: EXTENDED;
}
if (multi_display_mode_ != MIRRORING)
multi_display_mode_ = current_default_multi_display_mode_;
CreateSoftwareMirroringDisplayInfo(&new_display_info_list);
// Close the mirroring window if any here to avoid creating two compositor on
// one display.
if (delegate_)
delegate_->CloseMirroringDisplayIfNotNecessary();
display::DisplayList new_displays;
display::DisplayList removed_displays;
std::map<size_t, uint32_t> display_changes;
std::vector<size_t> added_display_indices;
display::DisplayList::iterator curr_iter = active_display_list_.begin();
DisplayInfoList::const_iterator new_info_iter = new_display_info_list.begin();
while (curr_iter != active_display_list_.end() ||
new_info_iter != new_display_info_list.end()) {
if (curr_iter == active_display_list_.end()) {
// more displays in new list.
added_display_indices.push_back(new_displays.size());
InsertAndUpdateDisplayInfo(*new_info_iter);
new_displays.push_back(
CreateDisplayFromDisplayInfoById(new_info_iter->id()));
++new_info_iter;
} else if (new_info_iter == new_display_info_list.end()) {
// more displays in current list.
removed_displays.push_back(*curr_iter);
++curr_iter;
} else if (curr_iter->id() == new_info_iter->id()) {
const display::Display& current_display = *curr_iter;
// Copy the info because |InsertAndUpdateDisplayInfo| updates the
// instance.
const DisplayInfo current_display_info =
GetDisplayInfo(current_display.id());
InsertAndUpdateDisplayInfo(*new_info_iter);
display::Display new_display =
CreateDisplayFromDisplayInfoById(new_info_iter->id());
const DisplayInfo& new_display_info = GetDisplayInfo(new_display.id());
uint32_t metrics = display::DisplayObserver::DISPLAY_METRIC_NONE;
// At that point the new Display objects we have are not entirely updated,
// they are missing the translation related to the Display disposition in
// the layout.
// Using display.bounds() and display.work_area() would fail most of the
// time.
if (force_bounds_changed_ || (current_display_info.bounds_in_native() !=
new_display_info.bounds_in_native()) ||
(current_display_info.GetOverscanInsetsInPixel() !=
new_display_info.GetOverscanInsetsInPixel()) ||
current_display.size() != new_display.size()) {
metrics |= display::DisplayObserver::DISPLAY_METRIC_BOUNDS |
display::DisplayObserver::DISPLAY_METRIC_WORK_AREA;
}
if (current_display.device_scale_factor() !=
new_display.device_scale_factor()) {
metrics |= display::DisplayObserver::DISPLAY_METRIC_DEVICE_SCALE_FACTOR;
}
if (current_display.rotation() != new_display.rotation())
metrics |= display::DisplayObserver::DISPLAY_METRIC_ROTATION;
if (metrics != display::DisplayObserver::DISPLAY_METRIC_NONE) {
display_changes.insert(
std::pair<size_t, uint32_t>(new_displays.size(), metrics));
}
new_display.UpdateWorkAreaFromInsets(current_display.GetWorkAreaInsets());
new_displays.push_back(new_display);
++curr_iter;
++new_info_iter;
} else if (curr_iter->id() < new_info_iter->id()) {
// more displays in current list between ids, which means it is deleted.
removed_displays.push_back(*curr_iter);
++curr_iter;
} else {
// more displays in new list between ids, which means it is added.
added_display_indices.push_back(new_displays.size());
InsertAndUpdateDisplayInfo(*new_info_iter);
new_displays.push_back(
CreateDisplayFromDisplayInfoById(new_info_iter->id()));
++new_info_iter;
}
}
display::Display old_primary;
if (delegate_)
old_primary = screen_->GetPrimaryDisplay();
// Clear focus if the display has been removed, but don't clear focus if
// the destkop has been moved from one display to another
// (mirror -> docked, docked -> single internal).
bool clear_focus =
!removed_displays.empty() &&
!(removed_displays.size() == 1 && added_display_indices.size() == 1);
if (delegate_)
delegate_->PreDisplayConfigurationChange(clear_focus);
std::vector<size_t> updated_indices;
UpdateNonPrimaryDisplayBoundsForLayout(&new_displays, &updated_indices);
for (size_t updated_index : updated_indices) {
if (std::find(added_display_indices.begin(), added_display_indices.end(),
updated_index) == added_display_indices.end()) {
uint32_t metrics = display::DisplayObserver::DISPLAY_METRIC_BOUNDS |
display::DisplayObserver::DISPLAY_METRIC_WORK_AREA;
if (display_changes.find(updated_index) != display_changes.end())
metrics |= display_changes[updated_index];
display_changes[updated_index] = metrics;
}
}
active_display_list_ = new_displays;
RefreshFontParams();
base::AutoReset<bool> resetter(&change_display_upon_host_resize_, false);
int active_display_list_size = active_display_list_.size();
// Temporarily add displays to be removed because display object
// being removed are accessed during shutting down the root.
active_display_list_.insert(active_display_list_.end(),
removed_displays.begin(), removed_displays.end());
for (const auto& display : removed_displays)
screen_->NotifyDisplayRemoved(display);
for (size_t index : added_display_indices)
screen_->NotifyDisplayAdded(active_display_list_[index]);
active_display_list_.resize(active_display_list_size);
bool notify_primary_change =
delegate_ ? old_primary.id() != screen_->GetPrimaryDisplay().id() : false;
for (std::map<size_t, uint32_t>::iterator iter = display_changes.begin();
iter != display_changes.end(); ++iter) {
uint32_t metrics = iter->second;
const display::Display& updated_display = active_display_list_[iter->first];
if (notify_primary_change &&
updated_display.id() == screen_->GetPrimaryDisplay().id()) {
metrics |= display::DisplayObserver::DISPLAY_METRIC_PRIMARY;
notify_primary_change = false;
}
screen_->NotifyMetricsChanged(updated_display, metrics);
}
if (notify_primary_change) {
// This happens when a primary display has moved to anther display without
// bounds change.
const display::Display& primary = screen_->GetPrimaryDisplay();
if (primary.id() != old_primary.id()) {
uint32_t metrics = display::DisplayObserver::DISPLAY_METRIC_PRIMARY;
if (primary.size() != old_primary.size()) {
metrics |= (display::DisplayObserver::DISPLAY_METRIC_BOUNDS |
display::DisplayObserver::DISPLAY_METRIC_WORK_AREA);
}
if (primary.device_scale_factor() != old_primary.device_scale_factor())
metrics |= display::DisplayObserver::DISPLAY_METRIC_DEVICE_SCALE_FACTOR;
screen_->NotifyMetricsChanged(primary, metrics);
}
}
if (delegate_)
delegate_->PostDisplayConfigurationChange();
#if defined(USE_X11) && defined(OS_CHROMEOS)
if (!display_changes.empty() && base::SysInfo::IsRunningOnChromeOS())
ui::ClearX11DefaultRootWindow();
#endif
// Create the mirroring window asynchronously after all displays
// are added so that it can mirror the display newly added. This can
// happen when switching from dock mode to software mirror mode.
CreateMirrorWindowAsyncIfAny();
}
const display::Display& DisplayManager::GetDisplayAt(size_t index) const {
DCHECK_LT(index, active_display_list_.size());
return active_display_list_[index];
}
const display::Display& DisplayManager::GetPrimaryDisplayCandidate() const {
if (GetNumDisplays() != 2)
return active_display_list_[0];
const display::DisplayLayout& layout =
layout_store_->GetRegisteredDisplayLayout(GetCurrentDisplayIdList());
return GetDisplayForId(layout.primary_id);
}
size_t DisplayManager::GetNumDisplays() const {
return active_display_list_.size();
}
bool DisplayManager::IsActiveDisplayId(int64_t display_id) const {
return std::find_if(active_display_list_.begin(), active_display_list_.end(),
[display_id](const display::Display& display) {
return display.id() == display_id;
}) != active_display_list_.end();
}
bool DisplayManager::IsInMirrorMode() const {
return mirroring_display_id_ != display::Display::kInvalidDisplayID;
}
void DisplayManager::SetUnifiedDesktopEnabled(bool enable) {
unified_desktop_enabled_ = enable;
// There is no need to update the displays in mirror mode. Doing
// this in hardware mirroring mode can cause crash because display
// info in hardware mirroring comes from DisplayConfigurator.
if (!IsInMirrorMode())
ReconfigureDisplays();
}
bool DisplayManager::IsInUnifiedMode() const {
return multi_display_mode_ == UNIFIED &&
!software_mirroring_display_list_.empty();
}
const DisplayInfo& DisplayManager::GetDisplayInfo(int64_t display_id) const {
DCHECK_NE(display::Display::kInvalidDisplayID, display_id);
std::map<int64_t, DisplayInfo>::const_iterator iter =
display_info_.find(display_id);
CHECK(iter != display_info_.end()) << display_id;
return iter->second;
}
const display::Display DisplayManager::GetMirroringDisplayById(
int64_t display_id) const {
auto iter = std::find_if(software_mirroring_display_list_.begin(),
software_mirroring_display_list_.end(),
[display_id](const display::Display& display) {
return display.id() == display_id;
});
return iter == software_mirroring_display_list_.end() ? display::Display()
: *iter;
}
std::string DisplayManager::GetDisplayNameForId(int64_t id) {
if (id == display::Display::kInvalidDisplayID)
return l10n_util::GetStringUTF8(IDS_ASH_STATUS_TRAY_UNKNOWN_DISPLAY_NAME);
std::map<int64_t, DisplayInfo>::const_iterator iter = display_info_.find(id);
if (iter != display_info_.end() && !iter->second.name().empty())
return iter->second.name();
return base::StringPrintf("Display %d", static_cast<int>(id));
}
int64_t DisplayManager::GetDisplayIdForUIScaling() const {
// UI Scaling is effective on internal display.
return display::Display::HasInternalDisplay()
? display::Display::InternalDisplayId()
: display::Display::kInvalidDisplayID;
}
void DisplayManager::SetMirrorMode(bool mirror) {
// TODO(oshima): Enable mirror mode for 2> displays. crbug.com/589319.
if (num_connected_displays() != 2)
return;
#if defined(OS_CHROMEOS)
if (base::SysInfo::IsRunningOnChromeOS()) {
ui::MultipleDisplayState new_state =
mirror ? ui::MULTIPLE_DISPLAY_STATE_DUAL_MIRROR
: ui::MULTIPLE_DISPLAY_STATE_DUAL_EXTENDED;
Shell::GetInstance()->display_configurator()->SetDisplayMode(new_state);
return;
}
#endif
multi_display_mode_ =
mirror ? MIRRORING : current_default_multi_display_mode_;
ReconfigureDisplays();
}
void DisplayManager::AddRemoveDisplay() {
DCHECK(!active_display_list_.empty());
std::vector<DisplayInfo> new_display_info_list;
const DisplayInfo& first_display =
IsInUnifiedMode()
? GetDisplayInfo(software_mirroring_display_list_[0].id())
: GetDisplayInfo(active_display_list_[0].id());
new_display_info_list.push_back(first_display);
// Add if there is only one display connected.
if (num_connected_displays() == 1) {
const int kVerticalOffsetPx = 100;
// Layout the 2nd display below the primary as with the real device.
gfx::Rect host_bounds = first_display.bounds_in_native();
new_display_info_list.push_back(
DisplayInfo::CreateFromSpec(base::StringPrintf(
"%d+%d-600x%d", host_bounds.x(),
host_bounds.bottom() + kVerticalOffsetPx, host_bounds.height())));
}
num_connected_displays_ = new_display_info_list.size();
mirroring_display_id_ = display::Display::kInvalidDisplayID;
software_mirroring_display_list_.clear();
UpdateDisplaysWith(new_display_info_list);
}
void DisplayManager::ToggleDisplayScaleFactor() {
DCHECK(!active_display_list_.empty());
std::vector<DisplayInfo> new_display_info_list;
for (display::DisplayList::const_iterator iter = active_display_list_.begin();
iter != active_display_list_.end(); ++iter) {
DisplayInfo display_info = GetDisplayInfo(iter->id());
display_info.set_device_scale_factor(
display_info.device_scale_factor() == 1.0f ? 2.0f : 1.0f);
new_display_info_list.push_back(display_info);
}
AddMirrorDisplayInfoIfAny(&new_display_info_list);
UpdateDisplaysWith(new_display_info_list);
}
#if defined(OS_CHROMEOS)
void DisplayManager::SetSoftwareMirroring(bool enabled) {
SetMultiDisplayMode(enabled ? MIRRORING
: current_default_multi_display_mode_);
}
bool DisplayManager::SoftwareMirroringEnabled() const {
return software_mirroring_enabled();
}
#endif
void DisplayManager::SetDefaultMultiDisplayModeForCurrentDisplays(
MultiDisplayMode mode) {
DCHECK_NE(MIRRORING, mode);
display::DisplayIdList list = GetCurrentDisplayIdList();
layout_store_->UpdateMultiDisplayState(list, IsInMirrorMode(),
mode == UNIFIED);
ReconfigureDisplays();
}
void DisplayManager::SetMultiDisplayMode(MultiDisplayMode mode) {
multi_display_mode_ = mode;
mirroring_display_id_ = display::Display::kInvalidDisplayID;
software_mirroring_display_list_.clear();
}
void DisplayManager::ReconfigureDisplays() {
DisplayInfoList display_info_list;
for (const display::Display& display : active_display_list_) {
if (display.id() == kUnifiedDisplayId)
continue;
display_info_list.push_back(GetDisplayInfo(display.id()));
}
for (const display::Display& display : software_mirroring_display_list_)
display_info_list.push_back(GetDisplayInfo(display.id()));
mirroring_display_id_ = display::Display::kInvalidDisplayID;
software_mirroring_display_list_.clear();
UpdateDisplaysWith(display_info_list);
}
bool DisplayManager::UpdateDisplayBounds(int64_t display_id,
const gfx::Rect& new_bounds) {
if (change_display_upon_host_resize_) {
display_info_[display_id].SetBounds(new_bounds);
// Don't notify observers if the mirrored window has changed.
if (software_mirroring_enabled() && mirroring_display_id_ == display_id)
return false;
display::Display* display = FindDisplayForId(display_id);
display->SetSize(display_info_[display_id].size_in_pixel());
screen_->NotifyMetricsChanged(
*display, display::DisplayObserver::DISPLAY_METRIC_BOUNDS);
return true;
}
return false;
}
void DisplayManager::CreateMirrorWindowAsyncIfAny() {
// Do not post a task if the software mirroring doesn't exist, or
// during initialization when compositor's init task isn't posted yet.
// ash::Shell::Init() will call this after the compositor is initialized.
if (software_mirroring_display_list_.empty() || !delegate_)
return;
base::ThreadTaskRunnerHandle::Get()->PostTask(
FROM_HERE, base::Bind(&DisplayManager::CreateMirrorWindowIfAny,
weak_ptr_factory_.GetWeakPtr()));
}
std::unique_ptr<MouseWarpController> DisplayManager::CreateMouseWarpController(
aura::Window* drag_source) const {
if (IsInUnifiedMode() && num_connected_displays() >= 2)
return base::WrapUnique(new UnifiedMouseWarpController());
// Extra check for |num_connected_displays()| is for SystemDisplayApiTest
// that injects MockScreen.
if (GetNumDisplays() < 2 || num_connected_displays() < 2)
return base::WrapUnique(new NullMouseWarpController());
return base::WrapUnique(new ExtendedMouseWarpController(drag_source));
}
void DisplayManager::CreateScreenForShutdown() const {
delete screen_for_shutdown;
screen_for_shutdown = screen_->CloneForShutdown();
display::Screen::SetScreenInstance(screen_for_shutdown);
}
void DisplayManager::UpdateInternalDisplayModeListForTest() {
if (!display::Display::HasInternalDisplay() ||
display_info_.count(display::Display::InternalDisplayId()) == 0)
return;
DisplayInfo* info = &display_info_[display::Display::InternalDisplayId()];
SetInternalDisplayModeList(info);
}
void DisplayManager::CreateSoftwareMirroringDisplayInfo(
DisplayInfoList* display_info_list) {
// Use the internal display or 1st as the mirror source, then scale
// the root window so that it matches the external display's
// resolution. This is necessary in order for scaling to work while
// mirrored.
switch (multi_display_mode_) {
case MIRRORING: {
if (display_info_list->size() != 2)
return;
bool zero_is_source =
first_display_id_ == (*display_info_list)[0].id() ||
display::Display::IsInternalDisplayId((*display_info_list)[0].id());
DCHECK_EQ(MIRRORING, multi_display_mode_);
mirroring_display_id_ = (*display_info_list)[zero_is_source ? 1 : 0].id();
int64_t display_id = mirroring_display_id_;
auto iter =
std::find_if(display_info_list->begin(), display_info_list->end(),
[display_id](const DisplayInfo& info) {
return info.id() == display_id;
});
DCHECK(iter != display_info_list->end());
DisplayInfo info = *iter;
info.SetOverscanInsets(gfx::Insets());
InsertAndUpdateDisplayInfo(info);
software_mirroring_display_list_.push_back(
CreateMirroringDisplayFromDisplayInfoById(mirroring_display_id_,
gfx::Point(), 1.0f));
display_info_list->erase(iter);
break;
}
case UNIFIED: {
if (display_info_list->size() == 1)
return;
// TODO(oshima): Currently, all displays are laid out horizontally,
// from left to right. Allow more flexible layouts, such as
// right to left, or vertical layouts.
gfx::Rect unified_bounds;
software_mirroring_display_list_.clear();
// 1st Pass. Find the max size.
int max_height = std::numeric_limits<int>::min();
int default_height = 0;
float default_device_scale_factor = 1.0f;
for (auto& info : *display_info_list) {
max_height = std::max(max_height, info.size_in_pixel().height());
if (!default_height ||
display::Display::IsInternalDisplayId(info.id())) {
default_height = info.size_in_pixel().height();
default_device_scale_factor = info.device_scale_factor();
}
}
std::vector<DisplayMode> display_mode_list;
std::set<std::pair<float, float>> dsf_scale_list;
// 2nd Pass. Compute the unified display size.
for (auto& info : *display_info_list) {
InsertAndUpdateDisplayInfo(info);
gfx::Point origin(unified_bounds.right(), 0);
float scale =
info.size_in_pixel().height() / static_cast<float>(max_height);
// The display is scaled to fit the unified desktop size.
display::Display display = CreateMirroringDisplayFromDisplayInfoById(
info.id(), origin, 1.0f / scale);
unified_bounds.Union(display.bounds());
dsf_scale_list.insert(
std::make_pair(info.device_scale_factor(), scale));
}
DisplayInfo info(kUnifiedDisplayId, "Unified Desktop", false);
DisplayMode native_mode(unified_bounds.size(), 60.0f, false, true);
std::vector<DisplayMode> modes =
CreateUnifiedDisplayModeList(native_mode, dsf_scale_list);
// Find the default mode.
auto iter = std::find_if(
modes.begin(), modes.end(),
[default_height,
default_device_scale_factor](const DisplayMode& mode) {
return mode.size.height() == default_height &&
mode.device_scale_factor == default_device_scale_factor;
});
iter->native = true;
info.SetDisplayModes(modes);
info.set_device_scale_factor(iter->device_scale_factor);
info.SetBounds(gfx::Rect(iter->size));
// Forget the configured resolution if the original unified
// desktop resolution has changed.
if (display_info_.count(kUnifiedDisplayId) != 0 &&
GetMaxNativeSize(display_info_[kUnifiedDisplayId]) !=
unified_bounds.size()) {
display_modes_.erase(kUnifiedDisplayId);
}
// 3rd Pass. Set the selected mode, then recompute the mirroring
// display size.
DisplayMode mode;
if (GetSelectedModeForDisplayId(kUnifiedDisplayId, &mode) &&
FindDisplayMode(info, mode) != info.display_modes().end()) {
info.set_device_scale_factor(mode.device_scale_factor);
info.SetBounds(gfx::Rect(mode.size));
} else {
display_modes_.erase(kUnifiedDisplayId);
}
int unified_display_height = info.size_in_pixel().height();
gfx::Point origin;
for (auto& info : *display_info_list) {
float display_scale = info.size_in_pixel().height() /
static_cast<float>(unified_display_height);
display::Display display = CreateMirroringDisplayFromDisplayInfoById(
info.id(), origin, 1.0f / display_scale);
origin.Offset(display.size().width(), 0);
display.UpdateWorkAreaFromInsets(gfx::Insets());
software_mirroring_display_list_.push_back(display);
}
display_info_list->clear();
display_info_list->push_back(info);
InsertAndUpdateDisplayInfo(info);
break;
}
case EXTENDED:
break;
}
}
display::Display* DisplayManager::FindDisplayForId(int64_t id) {
auto iter = std::find_if(
active_display_list_.begin(), active_display_list_.end(),
[id](const display::Display& display) { return display.id() == id; });
if (iter != active_display_list_.end())
return &(*iter);
// TODO(oshima): This happens when a windows in unified desktop have
// been moved to normal window. Fix this.
if (id != kUnifiedDisplayId)
DLOG(WARNING) << "Could not find display:" << id;
return nullptr;
}
void DisplayManager::AddMirrorDisplayInfoIfAny(
std::vector<DisplayInfo>* display_info_list) {
if (software_mirroring_enabled() && IsInMirrorMode()) {
display_info_list->push_back(GetDisplayInfo(mirroring_display_id_));
software_mirroring_display_list_.clear();
}
}
void DisplayManager::InsertAndUpdateDisplayInfo(const DisplayInfo& new_info) {
std::map<int64_t, DisplayInfo>::iterator info =
display_info_.find(new_info.id());
if (info != display_info_.end()) {
info->second.Copy(new_info);
} else {
display_info_[new_info.id()] = new_info;
display_info_[new_info.id()].set_native(false);
// FHD with 1.25 DSF behaves differently from other configuration.
// It uses 1.25 DSF only when UI-Scale is set to 0.8.
// For new users, use the UI-scale to 0.8 so that it will use DSF=1.25
// internally.
if (display::Display::IsInternalDisplayId(new_info.id()) &&
new_info.bounds_in_native().height() == 1080 &&
new_info.device_scale_factor() == 1.25f) {
display_info_[new_info.id()].set_configured_ui_scale(0.8f);
}
}
display_info_[new_info.id()].UpdateDisplaySize();
OnDisplayInfoUpdated(display_info_[new_info.id()]);
}
void DisplayManager::OnDisplayInfoUpdated(const DisplayInfo& display_info) {
#if defined(OS_CHROMEOS)
ui::ColorCalibrationProfile color_profile = display_info.color_profile();
if (color_profile != ui::COLOR_PROFILE_STANDARD) {
Shell::GetInstance()->display_configurator()->SetColorCalibrationProfile(
display_info.id(), color_profile);
}
#endif
}
display::Display DisplayManager::CreateDisplayFromDisplayInfoById(int64_t id) {
DCHECK(display_info_.find(id) != display_info_.end()) << "id=" << id;
const DisplayInfo& display_info = display_info_[id];
display::Display new_display(display_info.id());
gfx::Rect bounds_in_native(display_info.size_in_pixel());
float device_scale_factor = display_info.GetEffectiveDeviceScaleFactor();
// Simply set the origin to (0,0). The primary display's origin is
// always (0,0) and the bounds of non-primary display(s) will be updated
// in |UpdateNonPrimaryDisplayBoundsForLayout| called in |UpdateDisplay|.
new_display.SetScaleAndBounds(device_scale_factor,
gfx::Rect(bounds_in_native.size()));
new_display.set_rotation(display_info.GetActiveRotation());
new_display.set_touch_support(display_info.touch_support());
new_display.set_maximum_cursor_size(display_info.maximum_cursor_size());
return new_display;
}
display::Display DisplayManager::CreateMirroringDisplayFromDisplayInfoById(
int64_t id,
const gfx::Point& origin,
float scale) {
DCHECK(display_info_.find(id) != display_info_.end()) << "id=" << id;
const DisplayInfo& display_info = display_info_[id];
display::Display new_display(display_info.id());
new_display.SetScaleAndBounds(
1.0f, gfx::Rect(origin, gfx::ScaleToFlooredSize(
display_info.size_in_pixel(), scale)));
new_display.set_touch_support(display_info.touch_support());
new_display.set_maximum_cursor_size(display_info.maximum_cursor_size());
return new_display;
}
void DisplayManager::UpdateNonPrimaryDisplayBoundsForLayout(
display::DisplayList* display_list,
std::vector<size_t>* updated_indices) {
if (display_list->size() == 1u)
return;
const display::DisplayLayout& layout =
layout_store_->GetRegisteredDisplayLayout(
CreateDisplayIdList(*display_list));
// Ignore if a user has a old format (should be extremely rare)
// and this will be replaced with DCHECK.
if (layout.primary_id == display::Display::kInvalidDisplayID)
return;
// display_list does not have translation set, so ApplyDisplayLayout cannot
// provide accurate change information. We'll find the changes after the call.
ApplyDisplayLayout(layout, display_list, nullptr);
size_t num_displays = display_list->size();
for (size_t index = 0; index < num_displays; ++index) {
const display::Display& display = (*display_list)[index];
int64_t id = display.id();
const display::Display* active_display = FindDisplayForId(id);
if (!active_display || (active_display->bounds() != display.bounds()))
updated_indices->push_back(index);
}
}
void DisplayManager::CreateMirrorWindowIfAny() {
if (software_mirroring_display_list_.empty() || !delegate_)
return;
DisplayInfoList list;
for (auto& display : software_mirroring_display_list_)
list.push_back(GetDisplayInfo(display.id()));
delegate_->CreateOrUpdateMirroringDisplay(list);
}
void DisplayManager::ApplyDisplayLayout(const display::DisplayLayout& layout,
display::DisplayList* display_list,
std::vector<int64_t>* updated_ids) {
layout.ApplyToDisplayList(display_list, updated_ids,
kMinimumOverlapForInvalidOffset);
}
void DisplayManager::RunPendingTasksForTest() {
if (!software_mirroring_display_list_.empty())
base::RunLoop().RunUntilIdle();
}
} // namespace ash