1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "ash/display/display_manager.h"
12 #include "ash/ash_switches.h"
13 #include "ash/display/display_layout_store.h"
14 #include "ash/display/screen_ash.h"
15 #include "ash/screen_util.h"
16 #include "ash/shell.h"
17 #include "base/auto_reset.h"
18 #include "base/command_line.h"
19 #include "base/logging.h"
20 #include "base/metrics/histogram.h"
21 #include "base/strings/string_number_conversions.h"
22 #include "base/strings/string_split.h"
23 #include "base/strings/stringprintf.h"
24 #include "base/strings/utf_string_conversions.h"
25 #include "grit/ash_strings.h"
26 #include "ui/base/l10n/l10n_util.h"
27 #include "ui/gfx/display.h"
28 #include "ui/gfx/rect.h"
29 #include "ui/gfx/screen.h"
30 #include "ui/gfx/size_conversions.h"
33 #include "ui/base/x/x11_util.h"
36 #if defined(OS_CHROMEOS)
37 #include "ash/display/output_configurator_animation.h"
38 #include "base/sys_info.h"
42 #include "base/win/windows_version.h"
47 typedef std::vector<gfx::Display> DisplayList;
48 typedef std::vector<DisplayInfo> DisplayInfoList;
52 // We need to keep this in order for unittests to tell if
53 // the object in gfx::Screen::GetScreenByType is for shutdown.
54 gfx::Screen* screen_for_shutdown = NULL;
56 // The number of pixels to overlap between the primary and secondary displays,
57 // in case that the offset value is too large.
58 const int kMinimumOverlapForInvalidOffset = 100;
60 // List of value UI Scale values. Scales for 2x are equivalent to 640,
61 // 800, 1024, 1280, 1440, 1600 and 1920 pixel width respectively on
62 // 2560 pixel width 2x density display. Please see crbug.com/233375
63 // for the full list of resolutions.
64 const float kUIScalesFor2x[] =
65 {0.5f, 0.625f, 0.8f, 1.0f, 1.125f, 1.25f, 1.5f, 2.0f};
66 const float kUIScalesFor1280[] = {0.5f, 0.625f, 0.8f, 1.0f, 1.125f };
67 const float kUIScalesFor1366[] = {0.5f, 0.6f, 0.75f, 1.0f, 1.125f };
69 struct DisplaySortFunctor {
70 bool operator()(const gfx::Display& a, const gfx::Display& b) {
71 return a.id() < b.id();
75 struct DisplayInfoSortFunctor {
76 bool operator()(const DisplayInfo& a, const DisplayInfo& b) {
77 return a.id() < b.id();
81 struct DisplayModeMatcher {
82 DisplayModeMatcher(const gfx::Size& size) : size(size) {}
83 bool operator()(const DisplayMode& mode) { return mode.size == size; }
87 struct ScaleComparator {
88 explicit ScaleComparator(float s) : scale(s) {}
90 bool operator()(float s) const {
91 const float kEpsilon = 0.0001f;
92 return std::abs(scale - s) < kEpsilon;
97 gfx::Display& GetInvalidDisplay() {
98 static gfx::Display* invalid_display = new gfx::Display();
99 return *invalid_display;
102 void MaybeInitInternalDisplay(int64 id) {
103 CommandLine* command_line = CommandLine::ForCurrentProcess();
104 if (command_line->HasSwitch(switches::kAshUseFirstDisplayAsInternal))
105 gfx::Display::SetInternalDisplayId(id);
108 // Scoped objects used to either create or close the non desktop window
109 // at specific timing.
110 class NonDesktopDisplayUpdater {
112 NonDesktopDisplayUpdater(DisplayManager* manager,
113 DisplayManager::Delegate* delegate)
116 enabled_(manager_->second_display_mode() != DisplayManager::EXTENDED &&
117 manager_->non_desktop_display().is_valid()) {
120 ~NonDesktopDisplayUpdater() {
125 DisplayInfo display_info = manager_->GetDisplayInfo(
126 manager_->non_desktop_display().id());
127 delegate_->CreateOrUpdateNonDesktopDisplay(display_info);
129 delegate_->CloseNonDesktopDisplay();
133 bool enabled() const { return enabled_; }
136 DisplayManager* manager_;
137 DisplayManager::Delegate* delegate_;
139 DISALLOW_COPY_AND_ASSIGN(NonDesktopDisplayUpdater);
147 DisplayManager::DisplayManager()
149 screen_ash_(new ScreenAsh),
150 screen_(screen_ash_.get()),
151 layout_store_(new DisplayLayoutStore),
152 first_display_id_(gfx::Display::kInvalidDisplayID),
153 num_connected_displays_(0),
154 force_bounds_changed_(false),
155 change_display_upon_host_resize_(false),
156 second_display_mode_(EXTENDED),
157 mirrored_display_id_(gfx::Display::kInvalidDisplayID) {
158 #if defined(OS_CHROMEOS)
159 change_display_upon_host_resize_ = !base::SysInfo::IsRunningOnChromeOS();
161 gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_ALTERNATE,
163 gfx::Screen* current_native =
164 gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE);
165 // If there is no native, or the native was for shutdown,
167 if (!current_native ||
168 current_native == screen_for_shutdown) {
169 gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE,
174 DisplayManager::~DisplayManager() {
178 std::vector<float> DisplayManager::GetScalesForDisplay(
179 const DisplayInfo& info) {
180 std::vector<float> ret;
181 if (info.device_scale_factor() == 2.0f) {
182 ret.assign(kUIScalesFor2x, kUIScalesFor2x + arraysize(kUIScalesFor2x));
185 switch (info.bounds_in_native().width()) {
187 ret.assign(kUIScalesFor1280,
188 kUIScalesFor1280 + arraysize(kUIScalesFor1280));
191 ret.assign(kUIScalesFor1366,
192 kUIScalesFor1366 + arraysize(kUIScalesFor1366));
195 ret.assign(kUIScalesFor1280,
196 kUIScalesFor1280 + arraysize(kUIScalesFor1280));
197 #if defined(OS_CHROMEOS)
198 if (base::SysInfo::IsRunningOnChromeOS())
199 NOTREACHED() << "Unknown resolution:" << info.ToString();
206 float DisplayManager::GetNextUIScale(const DisplayInfo& info, bool up) {
207 float scale = info.configured_ui_scale();
208 std::vector<float> scales = GetScalesForDisplay(info);
209 for (size_t i = 0; i < scales.size(); ++i) {
210 if (ScaleComparator(scales[i])(scale)) {
211 if (up && i != scales.size() - 1)
212 return scales[i + 1];
214 return scales[i - 1];
218 // Fallback to 1.0f if the |scale| wasn't in the list.
222 bool DisplayManager::InitFromCommandLine() {
223 DisplayInfoList info_list;
224 CommandLine* command_line = CommandLine::ForCurrentProcess();
225 if (!command_line->HasSwitch(switches::kAshHostWindowBounds))
227 const string size_str =
228 command_line->GetSwitchValueASCII(switches::kAshHostWindowBounds);
229 vector<string> parts;
230 base::SplitString(size_str, ',', &parts);
231 for (vector<string>::const_iterator iter = parts.begin();
232 iter != parts.end(); ++iter) {
233 info_list.push_back(DisplayInfo::CreateFromSpec(*iter));
235 MaybeInitInternalDisplay(info_list[0].id());
236 if (info_list.size() > 1 &&
237 command_line->HasSwitch(switches::kAshEnableSoftwareMirroring)) {
238 SetSecondDisplayMode(MIRRORING);
240 OnNativeDisplaysChanged(info_list);
244 void DisplayManager::InitDefaultDisplay() {
245 DisplayInfoList info_list;
246 info_list.push_back(DisplayInfo::CreateFromSpec(std::string()));
247 MaybeInitInternalDisplay(info_list[0].id());
248 OnNativeDisplaysChanged(info_list);
252 void DisplayManager::UpdateDisplayBoundsForLayoutById(
253 const DisplayLayout& layout,
254 const gfx::Display& primary_display,
255 int64 secondary_display_id) {
256 DCHECK_NE(gfx::Display::kInvalidDisplayID, secondary_display_id);
257 UpdateDisplayBoundsForLayout(
258 layout, primary_display,
259 Shell::GetInstance()->display_manager()->
260 FindDisplayForId(secondary_display_id));
263 bool DisplayManager::IsActiveDisplay(const gfx::Display& display) const {
264 for (DisplayList::const_iterator iter = displays_.begin();
265 iter != displays_.end(); ++iter) {
266 if ((*iter).id() == display.id())
272 bool DisplayManager::HasInternalDisplay() const {
273 return gfx::Display::InternalDisplayId() != gfx::Display::kInvalidDisplayID;
276 bool DisplayManager::IsInternalDisplayId(int64 id) const {
277 return gfx::Display::InternalDisplayId() == id;
280 DisplayLayout DisplayManager::GetCurrentDisplayLayout() {
281 DCHECK_EQ(2U, num_connected_displays());
282 // Invert if the primary was swapped.
283 if (num_connected_displays() > 1) {
284 DisplayIdPair pair = GetCurrentDisplayIdPair();
285 return layout_store_->ComputeDisplayLayoutForDisplayIdPair(pair);
287 NOTREACHED() << "DisplayLayout is requested for single display";
288 // On release build, just fallback to default instead of blowing up.
289 DisplayLayout layout =
290 layout_store_->default_display_layout();
291 layout.primary_id = displays_[0].id();
295 DisplayIdPair DisplayManager::GetCurrentDisplayIdPair() const {
297 if (software_mirroring_enabled()) {
298 CHECK_EQ(2u, num_connected_displays());
299 // This comment is to make it easy to distinguish the crash
300 // between two checks.
301 CHECK_EQ(1u, displays_.size());
303 return std::make_pair(displays_[0].id(), mirrored_display_id_);
305 CHECK_GE(2u, displays_.size());
306 int64 id_at_zero = displays_[0].id();
307 if (id_at_zero == gfx::Display::InternalDisplayId() ||
308 id_at_zero == first_display_id()) {
309 return std::make_pair(id_at_zero, displays_[1].id());
311 return std::make_pair(displays_[1].id(), id_at_zero);
316 void DisplayManager::SetLayoutForCurrentDisplays(
317 const DisplayLayout& layout_relative_to_primary) {
318 DCHECK_EQ(2U, GetNumDisplays());
319 if (GetNumDisplays() < 2)
321 const gfx::Display& primary = screen_->GetPrimaryDisplay();
322 const DisplayIdPair pair = GetCurrentDisplayIdPair();
323 // Invert if the primary was swapped.
324 DisplayLayout to_set = pair.first == primary.id() ?
325 layout_relative_to_primary : layout_relative_to_primary.Invert();
327 DisplayLayout current_layout =
328 layout_store_->GetRegisteredDisplayLayout(pair);
329 if (to_set.position != current_layout.position ||
330 to_set.offset != current_layout.offset) {
331 to_set.primary_id = primary.id();
332 layout_store_->RegisterLayoutForDisplayIdPair(
333 pair.first, pair.second, to_set);
335 delegate_->PreDisplayConfigurationChange(false);
336 // PreDisplayConfigurationChange(false);
337 // TODO(oshima): Call UpdateDisplays instead.
338 const DisplayLayout layout = GetCurrentDisplayLayout();
339 UpdateDisplayBoundsForLayoutById(
341 ScreenUtil::GetSecondaryDisplay().id());
343 // Primary's bounds stay the same. Just notify bounds change
345 screen_ash_->NotifyBoundsChanged(
346 ScreenUtil::GetSecondaryDisplay());
348 delegate_->PostDisplayConfigurationChange();
352 const gfx::Display& DisplayManager::GetDisplayForId(int64 id) const {
353 gfx::Display* display =
354 const_cast<DisplayManager*>(this)->FindDisplayForId(id);
355 return display ? *display : GetInvalidDisplay();
358 const gfx::Display& DisplayManager::FindDisplayContainingPoint(
359 const gfx::Point& point_in_screen) const {
360 for (DisplayList::const_iterator iter = displays_.begin();
361 iter != displays_.end(); ++iter) {
362 const gfx::Display& display = *iter;
363 if (display.bounds().Contains(point_in_screen))
366 return GetInvalidDisplay();
369 bool DisplayManager::UpdateWorkAreaOfDisplay(int64 display_id,
370 const gfx::Insets& insets) {
371 gfx::Display* display = FindDisplayForId(display_id);
373 gfx::Rect old_work_area = display->work_area();
374 display->UpdateWorkAreaFromInsets(insets);
375 return old_work_area != display->work_area();
378 void DisplayManager::SetOverscanInsets(int64 display_id,
379 const gfx::Insets& insets_in_dip) {
380 display_info_[display_id].SetOverscanInsets(insets_in_dip);
381 DisplayInfoList display_info_list;
382 for (DisplayList::const_iterator iter = displays_.begin();
383 iter != displays_.end(); ++iter) {
384 display_info_list.push_back(GetDisplayInfo(iter->id()));
386 AddMirrorDisplayInfoIfAny(&display_info_list);
387 UpdateDisplays(display_info_list);
390 void DisplayManager::SetDisplayRotation(int64 display_id,
391 gfx::Display::Rotation rotation) {
392 DisplayInfoList display_info_list;
393 for (DisplayList::const_iterator iter = displays_.begin();
394 iter != displays_.end(); ++iter) {
395 DisplayInfo info = GetDisplayInfo(iter->id());
396 if (info.id() == display_id) {
397 if (info.rotation() == rotation)
399 info.set_rotation(rotation);
401 display_info_list.push_back(info);
403 AddMirrorDisplayInfoIfAny(&display_info_list);
404 if (virtual_keyboard_root_window_enabled() &&
405 display_id == non_desktop_display_.id()) {
406 DisplayInfo info = GetDisplayInfo(display_id);
407 info.set_rotation(rotation);
408 display_info_list.push_back(info);
410 UpdateDisplays(display_info_list);
413 void DisplayManager::SetDisplayUIScale(int64 display_id,
415 if (!IsDisplayUIScalingEnabled() ||
416 gfx::Display::InternalDisplayId() != display_id) {
420 DisplayInfoList display_info_list;
421 for (DisplayList::const_iterator iter = displays_.begin();
422 iter != displays_.end(); ++iter) {
423 DisplayInfo info = GetDisplayInfo(iter->id());
424 if (info.id() == display_id) {
425 if (info.configured_ui_scale() == ui_scale)
427 std::vector<float> scales = GetScalesForDisplay(info);
428 ScaleComparator comparator(ui_scale);
429 if (std::find_if(scales.begin(), scales.end(), comparator) ==
433 info.set_configured_ui_scale(ui_scale);
435 display_info_list.push_back(info);
437 AddMirrorDisplayInfoIfAny(&display_info_list);
438 UpdateDisplays(display_info_list);
441 void DisplayManager::SetDisplayResolution(int64 display_id,
442 const gfx::Size& resolution) {
443 DCHECK_NE(gfx::Display::InternalDisplayId(), display_id);
444 if (gfx::Display::InternalDisplayId() == display_id)
446 const DisplayInfo& display_info = GetDisplayInfo(display_id);
447 const std::vector<DisplayMode>& modes = display_info.display_modes();
448 DCHECK_NE(0u, modes.size());
449 std::vector<DisplayMode>::const_iterator iter =
450 std::find_if(modes.begin(), modes.end(), DisplayModeMatcher(resolution));
451 if (iter == modes.end()) {
452 LOG(WARNING) << "Unsupported resolution was requested:"
453 << resolution.ToString();
456 display_modes_[display_id] = *iter;
457 #if defined(OS_CHROMEOS) && defined(USE_X11)
458 if (base::SysInfo::IsRunningOnChromeOS())
459 Shell::GetInstance()->output_configurator()->OnConfigurationChanged();
463 void DisplayManager::RegisterDisplayProperty(
465 gfx::Display::Rotation rotation,
467 const gfx::Insets* overscan_insets,
468 const gfx::Size& resolution_in_pixels,
469 ui::ColorCalibrationProfile color_profile) {
470 if (display_info_.find(display_id) == display_info_.end())
471 display_info_[display_id] = DisplayInfo(display_id, std::string(), false);
473 display_info_[display_id].set_rotation(rotation);
474 display_info_[display_id].SetColorProfile(color_profile);
475 // Just in case the preference file was corrupted.
476 if (0.5f <= ui_scale && ui_scale <= 2.0f)
477 display_info_[display_id].set_configured_ui_scale(ui_scale);
479 display_info_[display_id].SetOverscanInsets(*overscan_insets);
480 if (!resolution_in_pixels.IsEmpty()) {
481 // Default refresh rate, until OnNativeDisplaysChanged() updates us with the
482 // actual display info, is 60 Hz.
483 display_modes_[display_id] =
484 DisplayMode(resolution_in_pixels, 60.0f, false, false);
488 bool DisplayManager::GetSelectedModeForDisplayId(int64 id,
489 DisplayMode* mode_out) const {
490 std::map<int64, DisplayMode>::const_iterator iter = display_modes_.find(id);
491 if (iter == display_modes_.end())
493 *mode_out = iter->second;
497 bool DisplayManager::IsDisplayUIScalingEnabled() const {
498 return GetDisplayIdForUIScaling() != gfx::Display::kInvalidDisplayID;
501 gfx::Insets DisplayManager::GetOverscanInsets(int64 display_id) const {
502 std::map<int64, DisplayInfo>::const_iterator it =
503 display_info_.find(display_id);
504 return (it != display_info_.end()) ?
505 it->second.overscan_insets_in_dip() : gfx::Insets();
508 void DisplayManager::SetColorCalibrationProfile(
510 ui::ColorCalibrationProfile profile) {
511 #if defined(OS_CHROMEOS)
512 if (!display_info_[display_id].IsColorProfileAvailable(profile))
516 delegate_->PreDisplayConfigurationChange(false);
517 if (Shell::GetInstance()->output_configurator()->SetColorCalibrationProfile(
518 display_id, profile)) {
519 display_info_[display_id].SetColorProfile(profile);
520 UMA_HISTOGRAM_ENUMERATION(
521 "ChromeOS.Display.ColorProfile", profile, ui::NUM_COLOR_PROFILES);
524 delegate_->PostDisplayConfigurationChange();
528 void DisplayManager::OnNativeDisplaysChanged(
529 const std::vector<DisplayInfo>& updated_displays) {
530 if (updated_displays.empty()) {
531 VLOG(1) << "OnNativeDisplayChanged(0): # of current displays="
533 // If the device is booted without display, or chrome is started
534 // without --ash-host-window-bounds on linux desktop, use the
536 if (displays_.empty()) {
537 std::vector<DisplayInfo> init_displays;
538 init_displays.push_back(DisplayInfo::CreateFromSpec(std::string()));
539 MaybeInitInternalDisplay(init_displays[0].id());
540 OnNativeDisplaysChanged(init_displays);
542 // Otherwise don't update the displays when all displays are disconnected.
543 // This happens when:
544 // - the device is idle and powerd requested to turn off all displays.
545 // - the device is suspended. (kernel turns off all displays)
546 // - the internal display's brightness is set to 0 and no external
547 // display is connected.
548 // - the internal display's brightness is 0 and external display is
550 // The display will be updated when one of displays is turned on, and the
551 // display list will be updated correctly.
555 first_display_id_ = updated_displays[0].id();
556 std::set<gfx::Point> origins;
558 if (updated_displays.size() == 1) {
559 VLOG(1) << "OnNativeDisplaysChanged(1):" << updated_displays[0].ToString();
561 VLOG(1) << "OnNativeDisplaysChanged(" << updated_displays.size()
562 << ") [0]=" << updated_displays[0].ToString()
563 << ", [1]=" << updated_displays[1].ToString();
566 bool internal_display_connected = false;
567 num_connected_displays_ = updated_displays.size();
568 mirrored_display_id_ = gfx::Display::kInvalidDisplayID;
569 non_desktop_display_ = gfx::Display();
570 DisplayInfoList new_display_info_list;
571 for (DisplayInfoList::const_iterator iter = updated_displays.begin();
572 iter != updated_displays.end();
574 if (!internal_display_connected)
575 internal_display_connected = IsInternalDisplayId(iter->id());
576 // Mirrored monitors have the same origins.
577 gfx::Point origin = iter->bounds_in_native().origin();
578 if (origins.find(origin) != origins.end()) {
579 InsertAndUpdateDisplayInfo(*iter);
580 mirrored_display_id_ = iter->id();
582 origins.insert(origin);
583 new_display_info_list.push_back(*iter);
586 const gfx::Size& resolution = iter->bounds_in_native().size();
587 const std::vector<DisplayMode>& display_modes = iter->display_modes();
588 // This is empty the displays are initialized from InitFromCommandLine.
589 if (!display_modes.size())
591 std::vector<DisplayMode>::const_iterator display_modes_iter =
592 std::find_if(display_modes.begin(),
594 DisplayModeMatcher(resolution));
595 // Update the actual resolution selected as the resolution request may fail.
596 if (display_modes_iter == display_modes.end())
597 display_modes_.erase(iter->id());
598 else if (display_modes_.find(iter->id()) != display_modes_.end())
599 display_modes_[iter->id()] = *display_modes_iter;
601 if (HasInternalDisplay() &&
602 !internal_display_connected &&
603 display_info_.find(gfx::Display::InternalDisplayId()) ==
604 display_info_.end()) {
605 DisplayInfo internal_display_info(
606 gfx::Display::InternalDisplayId(),
607 l10n_util::GetStringUTF8(IDS_ASH_INTERNAL_DISPLAY_NAME),
608 false /*Internal display must not have overscan */);
609 internal_display_info.SetBounds(gfx::Rect(0, 0, 800, 600));
610 display_info_[gfx::Display::InternalDisplayId()] = internal_display_info;
612 UpdateDisplays(new_display_info_list);
615 void DisplayManager::UpdateDisplays() {
616 DisplayInfoList display_info_list;
617 for (DisplayList::const_iterator iter = displays_.begin();
618 iter != displays_.end(); ++iter) {
619 display_info_list.push_back(GetDisplayInfo(iter->id()));
621 AddMirrorDisplayInfoIfAny(&display_info_list);
622 UpdateDisplays(display_info_list);
625 void DisplayManager::UpdateDisplays(
626 const std::vector<DisplayInfo>& updated_display_info_list) {
628 if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
629 DCHECK_EQ(1u, updated_display_info_list.size()) <<
630 "Multiple display test does not work on Win8 bots. Please "
631 "skip (don't disable) the test using SupportsMultipleDisplays()";
635 DisplayInfoList new_display_info_list = updated_display_info_list;
636 std::sort(displays_.begin(), displays_.end(), DisplaySortFunctor());
637 std::sort(new_display_info_list.begin(),
638 new_display_info_list.end(),
639 DisplayInfoSortFunctor());
640 DisplayList removed_displays;
641 std::vector<size_t> changed_display_indices;
642 std::vector<size_t> added_display_indices;
644 DisplayList::iterator curr_iter = displays_.begin();
645 DisplayInfoList::const_iterator new_info_iter = new_display_info_list.begin();
647 DisplayList new_displays;
649 // Use the internal display or 1st as the mirror source, then scale
650 // the root window so that it matches the external display's
651 // resolution. This is necessary in order for scaling to work while
653 int64 non_desktop_display_id = gfx::Display::kInvalidDisplayID;
655 if (second_display_mode_ != EXTENDED && new_display_info_list.size() == 2) {
656 bool zero_is_source =
657 first_display_id_ == new_display_info_list[0].id() ||
658 gfx::Display::InternalDisplayId() == new_display_info_list[0].id();
659 if (second_display_mode_ == MIRRORING) {
660 mirrored_display_id_ = new_display_info_list[zero_is_source ? 1 : 0].id();
661 non_desktop_display_id = mirrored_display_id_;
663 // TODO(oshima|bshe): The virtual keyboard is currently assigned to
665 non_desktop_display_id =
666 new_display_info_list[zero_is_source ? 0 : 1].id();
670 while (curr_iter != displays_.end() ||
671 new_info_iter != new_display_info_list.end()) {
672 if (new_info_iter != new_display_info_list.end() &&
673 non_desktop_display_id == new_info_iter->id()) {
674 DisplayInfo info = *new_info_iter;
675 info.SetOverscanInsets(gfx::Insets());
676 InsertAndUpdateDisplayInfo(info);
677 non_desktop_display_ =
678 CreateDisplayFromDisplayInfoById(non_desktop_display_id);
680 // Remove existing external display if it is going to be used as
682 if (curr_iter != displays_.end() &&
683 curr_iter->id() == non_desktop_display_id) {
684 removed_displays.push_back(*curr_iter);
690 if (curr_iter == displays_.end()) {
691 // more displays in new list.
692 added_display_indices.push_back(new_displays.size());
693 InsertAndUpdateDisplayInfo(*new_info_iter);
694 new_displays.push_back(
695 CreateDisplayFromDisplayInfoById(new_info_iter->id()));
697 } else if (new_info_iter == new_display_info_list.end()) {
698 // more displays in current list.
699 removed_displays.push_back(*curr_iter);
701 } else if (curr_iter->id() == new_info_iter->id()) {
702 const gfx::Display& current_display = *curr_iter;
703 // Copy the info because |CreateDisplayFromInfo| updates the instance.
704 const DisplayInfo current_display_info =
705 GetDisplayInfo(current_display.id());
706 InsertAndUpdateDisplayInfo(*new_info_iter);
707 gfx::Display new_display =
708 CreateDisplayFromDisplayInfoById(new_info_iter->id());
709 const DisplayInfo& new_display_info = GetDisplayInfo(new_display.id());
711 bool host_window_bounds_changed =
712 current_display_info.bounds_in_native() !=
713 new_display_info.bounds_in_native();
715 if (force_bounds_changed_ ||
716 host_window_bounds_changed ||
717 (current_display.device_scale_factor() !=
718 new_display.device_scale_factor()) ||
719 (current_display_info.size_in_pixel() !=
720 new_display.GetSizeInPixel()) ||
721 (current_display.rotation() != new_display.rotation())) {
722 changed_display_indices.push_back(new_displays.size());
725 new_display.UpdateWorkAreaFromInsets(current_display.GetWorkAreaInsets());
726 new_displays.push_back(new_display);
729 } else if (curr_iter->id() < new_info_iter->id()) {
730 // more displays in current list between ids, which means it is deleted.
731 removed_displays.push_back(*curr_iter);
734 // more displays in new list between ids, which means it is added.
735 added_display_indices.push_back(new_displays.size());
736 InsertAndUpdateDisplayInfo(*new_info_iter);
737 new_displays.push_back(
738 CreateDisplayFromDisplayInfoById(new_info_iter->id()));
743 scoped_ptr<NonDesktopDisplayUpdater> non_desktop_display_updater(
744 new NonDesktopDisplayUpdater(this, delegate_));
746 // Do not update |displays_| if there's nothing to be updated. Without this,
747 // it will not update the display layout, which causes the bug
748 // http://crbug.com/155948.
749 if (changed_display_indices.empty() && added_display_indices.empty() &&
750 removed_displays.empty()) {
753 // Clear focus if the display has been removed, but don't clear focus if
754 // the destkop has been moved from one display to another
755 // (mirror -> docked, docked -> single internal).
757 !removed_displays.empty() &&
758 !(removed_displays.size() == 1 && added_display_indices.size() == 1);
760 delegate_->PreDisplayConfigurationChange(clear_focus);
762 size_t updated_index;
763 if (UpdateSecondaryDisplayBoundsForLayout(&new_displays, &updated_index) &&
764 std::find(added_display_indices.begin(),
765 added_display_indices.end(),
766 updated_index) == added_display_indices.end() &&
767 std::find(changed_display_indices.begin(),
768 changed_display_indices.end(),
769 updated_index) == changed_display_indices.end()) {
770 changed_display_indices.push_back(updated_index);
773 displays_ = new_displays;
775 base::AutoReset<bool> resetter(&change_display_upon_host_resize_, false);
777 // Temporarily add displays to be removed because display object
778 // being removed are accessed during shutting down the root.
779 displays_.insert(displays_.end(), removed_displays.begin(),
780 removed_displays.end());
782 for (DisplayList::const_reverse_iterator iter = removed_displays.rbegin();
783 iter != removed_displays.rend(); ++iter) {
784 screen_ash_->NotifyDisplayRemoved(displays_.back());
785 displays_.pop_back();
787 // Close the non desktop window here to avoid creating two compositor on
789 if (!non_desktop_display_updater->enabled())
790 non_desktop_display_updater.reset();
791 for (std::vector<size_t>::iterator iter = added_display_indices.begin();
792 iter != added_display_indices.end(); ++iter) {
793 screen_ash_->NotifyDisplayAdded(displays_[*iter]);
795 // Create the non destkop window after all displays are added so that
796 // it can mirror the display newly added. This can happen when switching
797 // from dock mode to software mirror mode.
798 non_desktop_display_updater.reset();
799 for (std::vector<size_t>::iterator iter = changed_display_indices.begin();
800 iter != changed_display_indices.end(); ++iter) {
801 screen_ash_->NotifyBoundsChanged(displays_[*iter]);
804 delegate_->PostDisplayConfigurationChange();
806 #if defined(USE_X11) && defined(OS_CHROMEOS)
807 if (!changed_display_indices.empty() && base::SysInfo::IsRunningOnChromeOS())
808 ui::ClearX11DefaultRootWindow();
812 const gfx::Display& DisplayManager::GetDisplayAt(size_t index) const {
813 DCHECK_LT(index, displays_.size());
814 return displays_[index];
817 const gfx::Display& DisplayManager::GetPrimaryDisplayCandidate() const {
818 if (GetNumDisplays() == 1)
820 DisplayLayout layout = layout_store_->GetRegisteredDisplayLayout(
821 GetCurrentDisplayIdPair());
822 return GetDisplayForId(layout.primary_id);
825 size_t DisplayManager::GetNumDisplays() const {
826 return displays_.size();
829 bool DisplayManager::IsMirrored() const {
830 return mirrored_display_id_ != gfx::Display::kInvalidDisplayID;
833 const DisplayInfo& DisplayManager::GetDisplayInfo(int64 display_id) const {
834 std::map<int64, DisplayInfo>::const_iterator iter =
835 display_info_.find(display_id);
836 CHECK(iter != display_info_.end()) << display_id;
840 std::string DisplayManager::GetDisplayNameForId(int64 id) {
841 if (id == gfx::Display::kInvalidDisplayID)
842 return l10n_util::GetStringUTF8(IDS_ASH_STATUS_TRAY_UNKNOWN_DISPLAY_NAME);
844 std::map<int64, DisplayInfo>::const_iterator iter = display_info_.find(id);
845 if (iter != display_info_.end() && !iter->second.name().empty())
846 return iter->second.name();
848 return base::StringPrintf("Display %d", static_cast<int>(id));
851 int64 DisplayManager::GetDisplayIdForUIScaling() const {
852 // UI Scaling is effective only on internal display.
853 int64 display_id = gfx::Display::InternalDisplayId();
855 display_id = first_display_id();
860 void DisplayManager::SetMirrorMode(bool mirrored) {
861 if (num_connected_displays() <= 1)
864 #if defined(OS_CHROMEOS)
865 if (base::SysInfo::IsRunningOnChromeOS()) {
866 ui::OutputState new_state = mirrored ? ui::OUTPUT_STATE_DUAL_MIRROR :
867 ui::OUTPUT_STATE_DUAL_EXTENDED;
868 Shell::GetInstance()->output_configurator()->SetDisplayMode(new_state);
872 // This is fallback path to emulate mirroroing on desktop.
873 SetSecondDisplayMode(mirrored ? MIRRORING : EXTENDED);
874 DisplayInfoList display_info_list;
876 for (std::map<int64, DisplayInfo>::const_iterator iter =
877 display_info_.begin();
878 count < 2; ++iter, ++count) {
879 display_info_list.push_back(GetDisplayInfo(iter->second.id()));
881 UpdateDisplays(display_info_list);
882 #if defined(OS_CHROMEOS)
883 if (Shell::GetInstance()->output_configurator_animation()) {
884 Shell::GetInstance()->output_configurator_animation()->
885 StartFadeInAnimation();
890 void DisplayManager::AddRemoveDisplay() {
891 DCHECK(!displays_.empty());
892 std::vector<DisplayInfo> new_display_info_list;
893 const DisplayInfo& first_display = GetDisplayInfo(displays_[0].id());
894 new_display_info_list.push_back(first_display);
895 // Add if there is only one display connected.
896 if (num_connected_displays() == 1) {
897 // Layout the 2nd display below the primary as with the real device.
898 gfx::Rect host_bounds = first_display.bounds_in_native();
899 new_display_info_list.push_back(DisplayInfo::CreateFromSpec(
901 "%d+%d-500x400", host_bounds.x(), host_bounds.bottom())));
903 num_connected_displays_ = new_display_info_list.size();
904 mirrored_display_id_ = gfx::Display::kInvalidDisplayID;
905 non_desktop_display_ = gfx::Display();
906 UpdateDisplays(new_display_info_list);
909 void DisplayManager::ToggleDisplayScaleFactor() {
910 DCHECK(!displays_.empty());
911 std::vector<DisplayInfo> new_display_info_list;
912 for (DisplayList::const_iterator iter = displays_.begin();
913 iter != displays_.end(); ++iter) {
914 DisplayInfo display_info = GetDisplayInfo(iter->id());
915 display_info.set_device_scale_factor(
916 display_info.device_scale_factor() == 1.0f ? 2.0f : 1.0f);
917 new_display_info_list.push_back(display_info);
919 AddMirrorDisplayInfoIfAny(&new_display_info_list);
920 UpdateDisplays(new_display_info_list);
923 #if defined(OS_CHROMEOS)
924 void DisplayManager::SetSoftwareMirroring(bool enabled) {
925 // TODO(oshima|bshe): Support external display on the system
926 // that has virtual keyboard display.
927 if (second_display_mode_ == VIRTUAL_KEYBOARD)
929 SetSecondDisplayMode(enabled ? MIRRORING : EXTENDED);
933 void DisplayManager::SetSecondDisplayMode(SecondDisplayMode mode) {
934 second_display_mode_ = mode;
935 mirrored_display_id_ = gfx::Display::kInvalidDisplayID;
936 non_desktop_display_ = gfx::Display();
939 bool DisplayManager::UpdateDisplayBounds(int64 display_id,
940 const gfx::Rect& new_bounds) {
941 if (change_display_upon_host_resize_) {
942 display_info_[display_id].SetBounds(new_bounds);
943 // Don't notify observers if the mirrored window has changed.
944 if (software_mirroring_enabled() && mirrored_display_id_ == display_id)
946 gfx::Display* display = FindDisplayForId(display_id);
947 display->SetSize(display_info_[display_id].size_in_pixel());
948 screen_ash_->NotifyBoundsChanged(*display);
954 void DisplayManager::CreateMirrorWindowIfAny() {
955 NonDesktopDisplayUpdater updater(this, delegate_);
958 void DisplayManager::CreateScreenForShutdown() const {
960 gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE) ==
962 delete screen_for_shutdown;
963 screen_for_shutdown = screen_ash_->CloneForShutdown();
964 gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_ALTERNATE,
965 screen_for_shutdown);
967 gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE,
968 screen_for_shutdown);
972 gfx::Display* DisplayManager::FindDisplayForId(int64 id) {
973 for (DisplayList::iterator iter = displays_.begin();
974 iter != displays_.end(); ++iter) {
975 if ((*iter).id() == id)
978 DLOG(WARNING) << "Could not find display:" << id;
982 void DisplayManager::AddMirrorDisplayInfoIfAny(
983 std::vector<DisplayInfo>* display_info_list) {
984 if (software_mirroring_enabled() && IsMirrored())
985 display_info_list->push_back(GetDisplayInfo(mirrored_display_id_));
988 void DisplayManager::InsertAndUpdateDisplayInfo(const DisplayInfo& new_info) {
989 std::map<int64, DisplayInfo>::iterator info =
990 display_info_.find(new_info.id());
991 if (info != display_info_.end()) {
992 info->second.Copy(new_info);
994 display_info_[new_info.id()] = new_info;
995 display_info_[new_info.id()].set_native(false);
997 display_info_[new_info.id()].UpdateDisplaySize();
999 OnDisplayInfoUpdated(display_info_[new_info.id()]);
1002 void DisplayManager::OnDisplayInfoUpdated(const DisplayInfo& display_info) {
1003 #if defined(OS_CHROMEOS)
1004 ui::ColorCalibrationProfile color_profile = display_info.color_profile();
1005 if (color_profile != ui::COLOR_PROFILE_STANDARD) {
1006 Shell::GetInstance()->output_configurator()->SetColorCalibrationProfile(
1007 display_info.id(), color_profile);
1012 gfx::Display DisplayManager::CreateDisplayFromDisplayInfoById(int64 id) {
1013 DCHECK(display_info_.find(id) != display_info_.end());
1014 const DisplayInfo& display_info = display_info_[id];
1016 gfx::Display new_display(display_info.id());
1017 gfx::Rect bounds_in_native(display_info.size_in_pixel());
1018 float device_scale_factor = display_info.device_scale_factor();
1019 if (device_scale_factor == 2.0f && display_info.configured_ui_scale() == 2.0f)
1020 device_scale_factor = 1.0f;
1022 // Simply set the origin to (0,0). The primary display's origin is
1023 // always (0,0) and the secondary display's bounds will be updated
1024 // in |UpdateSecondaryDisplayBoundsForLayout| called in |UpdateDisplay|.
1025 new_display.SetScaleAndBounds(
1026 device_scale_factor, gfx::Rect(bounds_in_native.size()));
1027 new_display.set_rotation(display_info.rotation());
1028 new_display.set_touch_support(display_info.touch_support());
1032 bool DisplayManager::UpdateSecondaryDisplayBoundsForLayout(
1033 DisplayList* displays,
1034 size_t* updated_index) const {
1035 if (displays->size() != 2U)
1038 int64 id_at_zero = displays->at(0).id();
1039 DisplayIdPair pair =
1040 (id_at_zero == first_display_id_ ||
1041 id_at_zero == gfx::Display::InternalDisplayId()) ?
1042 std::make_pair(id_at_zero, displays->at(1).id()) :
1043 std::make_pair(displays->at(1).id(), id_at_zero);
1044 DisplayLayout layout =
1045 layout_store_->ComputeDisplayLayoutForDisplayIdPair(pair);
1047 // Ignore if a user has a old format (should be extremely rare)
1048 // and this will be replaced with DCHECK.
1049 if (layout.primary_id != gfx::Display::kInvalidDisplayID) {
1050 size_t primary_index, secondary_index;
1051 if (displays->at(0).id() == layout.primary_id) {
1053 secondary_index = 1;
1056 secondary_index = 0;
1058 // This function may be called before the secondary display is
1059 // registered. The bounds is empty in that case and will
1062 GetDisplayForId(displays->at(secondary_index).id()).bounds();
1063 UpdateDisplayBoundsForLayout(
1064 layout, displays->at(primary_index), &displays->at(secondary_index));
1065 *updated_index = secondary_index;
1066 return bounds != displays->at(secondary_index).bounds();
1072 void DisplayManager::UpdateDisplayBoundsForLayout(
1073 const DisplayLayout& layout,
1074 const gfx::Display& primary_display,
1075 gfx::Display* secondary_display) {
1076 DCHECK_EQ("0,0", primary_display.bounds().origin().ToString());
1078 const gfx::Rect& primary_bounds = primary_display.bounds();
1079 const gfx::Rect& secondary_bounds = secondary_display->bounds();
1080 gfx::Point new_secondary_origin = primary_bounds.origin();
1082 DisplayLayout::Position position = layout.position;
1084 // Ignore the offset in case the secondary display doesn't share edges with
1085 // the primary display.
1086 int offset = layout.offset;
1087 if (position == DisplayLayout::TOP || position == DisplayLayout::BOTTOM) {
1089 offset, primary_bounds.width() - kMinimumOverlapForInvalidOffset);
1091 offset, -secondary_bounds.width() + kMinimumOverlapForInvalidOffset);
1094 offset, primary_bounds.height() - kMinimumOverlapForInvalidOffset);
1096 offset, -secondary_bounds.height() + kMinimumOverlapForInvalidOffset);
1099 case DisplayLayout::TOP:
1100 new_secondary_origin.Offset(offset, -secondary_bounds.height());
1102 case DisplayLayout::RIGHT:
1103 new_secondary_origin.Offset(primary_bounds.width(), offset);
1105 case DisplayLayout::BOTTOM:
1106 new_secondary_origin.Offset(offset, primary_bounds.height());
1108 case DisplayLayout::LEFT:
1109 new_secondary_origin.Offset(-secondary_bounds.width(), offset);
1112 gfx::Insets insets = secondary_display->GetWorkAreaInsets();
1113 secondary_display->set_bounds(
1114 gfx::Rect(new_secondary_origin, secondary_bounds.size()));
1115 secondary_display->UpdateWorkAreaFromInsets(insets);
1118 } // namespace internal