Move ash::DisplayInfo to ui

ash/common/display/display_info.cc

Index: ash/common/display/display_info.cc
diff --git a/ash/common/display/display_info.cc b/ash/common/display/display_info.cc
deleted file mode 100644
index 3ee93edac58932638e64568904220dda5ca918a5..0000000000000000000000000000000000000000
--- a/ash/common/display/display_info.cc
+++ /dev/null
@@ -1,499 +0,0 @@
-// Copyright (c) 2013 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/common/display/display_info.h"
-
-#include <stdio.h>
-
-#include <algorithm>
-#include <string>
-#include <vector>
-
-#include "base/logging.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_split.h"
-#include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
-#include "ui/display/display.h"
-#include "ui/gfx/geometry/size_conversions.h"
-#include "ui/gfx/geometry/size_f.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#include "ui/display/win/dpi.h"
-#endif
-
-namespace ash {
-namespace {
-
-// Use larger than max int to catch overflow early.
-const int64_t kSynthesizedDisplayIdStart = 2200000000LL;
-
-int64_t synthesized_display_id = kSynthesizedDisplayIdStart;
-
-const float kDpi96 = 96.0;
-bool use_125_dsf_for_ui_scaling = true;
-
-// Check the content of |spec| and fill |bounds| and |device_scale_factor|.
-// Returns true when |bounds| is found.
-bool GetDisplayBounds(const std::string& spec,
-                      gfx::Rect* bounds,
-                      float* device_scale_factor) {
-  int width = 0;
-  int height = 0;
-  int x = 0;
-  int y = 0;
-  if (sscanf(spec.c_str(), "%dx%d*%f", &width, &height, device_scale_factor) >=
-          2 ||
-      sscanf(spec.c_str(), "%d+%d-%dx%d*%f", &x, &y, &width, &height,
-             device_scale_factor) >= 4) {
-    bounds->SetRect(x, y, width, height);
-    return true;
-  }
-  return false;
-}
-
-// Display mode list is sorted by:
-//  * the area in pixels in ascending order
-//  * refresh rate in descending order
-struct ManagedDisplayModeSorter {
-  explicit ManagedDisplayModeSorter(bool is_internal)
-      : is_internal(is_internal) {}
-
-  bool operator()(const scoped_refptr<ManagedDisplayMode>& a,
-                  const scoped_refptr<ManagedDisplayMode>& b) {
-    gfx::Size size_a_dip = a->GetSizeInDIP(is_internal);
-    gfx::Size size_b_dip = b->GetSizeInDIP(is_internal);
-    if (size_a_dip.GetArea() == size_b_dip.GetArea())
-      return (a->refresh_rate() > b->refresh_rate());
-    return (size_a_dip.GetArea() < size_b_dip.GetArea());
-  }
-
-  bool is_internal;
-};
-
-}  // namespace
-
-ManagedDisplayMode::ManagedDisplayMode()
-    : refresh_rate_(0.0f),
-      is_interlaced_(false),
-      native_(false),
-      ui_scale_(1.0f),
-      device_scale_factor_(1.0f) {}
-
-ManagedDisplayMode::ManagedDisplayMode(const gfx::Size& size)
-    : size_(size),
-      refresh_rate_(0.0f),
-      is_interlaced_(false),
-      native_(false),
-      ui_scale_(1.0f),
-      device_scale_factor_(1.0f) {}
-
-ManagedDisplayMode::ManagedDisplayMode(const gfx::Size& size,
-                                       float refresh_rate,
-                                       bool is_interlaced,
-                                       bool native)
-    : size_(size),
-      refresh_rate_(refresh_rate),
-      is_interlaced_(is_interlaced),
-      native_(native),
-      ui_scale_(1.0f),
-      device_scale_factor_(1.0f) {}
-
-ManagedDisplayMode::~ManagedDisplayMode(){};
-
-ManagedDisplayMode::ManagedDisplayMode(const gfx::Size& size,
-                                       float refresh_rate,
-                                       bool is_interlaced,
-                                       bool native,
-                                       float ui_scale,
-                                       float device_scale_factor)
-    : size_(size),
-      refresh_rate_(refresh_rate),
-      is_interlaced_(is_interlaced),
-      native_(native),
-      ui_scale_(ui_scale),
-      device_scale_factor_(device_scale_factor) {}
-
-gfx::Size ManagedDisplayMode::GetSizeInDIP(bool is_internal) const {
-  gfx::SizeF size_dip(size_);
-  size_dip.Scale(ui_scale_);
-  // DSF=1.25 is special on internal display. The screen is drawn with DSF=1.25
-  // but it doesn't affect the screen size computation.
-  if (use_125_dsf_for_ui_scaling && is_internal &&
-      device_scale_factor_ == 1.25f)
-    return gfx::ToFlooredSize(size_dip);
-  size_dip.Scale(1.0f / device_scale_factor_);
-  return gfx::ToFlooredSize(size_dip);
-}
-
-bool ManagedDisplayMode::IsEquivalent(
-    const scoped_refptr<ManagedDisplayMode>& other) const {
-  const float kEpsilon = 0.0001f;
-  return size_ == other->size_ &&
-         std::abs(ui_scale_ - other->ui_scale_) < kEpsilon &&
-         std::abs(device_scale_factor_ - other->device_scale_factor_) <
-             kEpsilon;
-}
-
-// static
-DisplayInfo DisplayInfo::CreateFromSpec(const std::string& spec) {
-  return CreateFromSpecWithID(spec, display::Display::kInvalidDisplayID);
-}
-
-// static
-DisplayInfo DisplayInfo::CreateFromSpecWithID(const std::string& spec,
-                                              int64_t id) {
-#if defined(OS_WIN)
-  gfx::Rect bounds_in_native(
-      gfx::Size(GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN)));
-#else
-  // Default bounds for a display.
-  const int kDefaultHostWindowX = 200;
-  const int kDefaultHostWindowY = 200;
-  const int kDefaultHostWindowWidth = 1366;
-  const int kDefaultHostWindowHeight = 768;
-  gfx::Rect bounds_in_native(kDefaultHostWindowX, kDefaultHostWindowY,
-                             kDefaultHostWindowWidth, kDefaultHostWindowHeight);
-#endif
-  std::string main_spec = spec;
-
-  float ui_scale = 1.0f;
-  std::vector<std::string> parts = base::SplitString(
-      main_spec, "@", base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
-  if (parts.size() == 2) {
-    double scale_in_double = 0;
-    if (base::StringToDouble(parts[1], &scale_in_double))
-      ui_scale = scale_in_double;
-    main_spec = parts[0];
-  }
-
-  parts = base::SplitString(main_spec, "/", base::KEEP_WHITESPACE,
-                            base::SPLIT_WANT_NONEMPTY);
-  display::Display::Rotation rotation(display::Display::ROTATE_0);
-  bool has_overscan = false;
-  if (!parts.empty()) {
-    main_spec = parts[0];
-    if (parts.size() >= 2) {
-      std::string options = parts[1];
-      for (size_t i = 0; i < options.size(); ++i) {
-        char c = options[i];
-        switch (c) {
-          case 'o':
-            has_overscan = true;
-            break;
-          case 'r':  // rotate 90 degrees to 'right'.
-            rotation = display::Display::ROTATE_90;
-            break;
-          case 'u':  // 180 degrees, 'u'pside-down.
-            rotation = display::Display::ROTATE_180;
-            break;
-          case 'l':  // rotate 90 degrees to 'left'.
-            rotation = display::Display::ROTATE_270;
-            break;
-        }
-      }
-    }
-  }
-
-  float device_scale_factor = 1.0f;
-  if (!GetDisplayBounds(main_spec, &bounds_in_native, &device_scale_factor)) {
-#if defined(OS_WIN)
-    device_scale_factor = display::win::GetDPIScale();
-#endif
-  }
-
-  ManagedDisplayModeList display_modes;
-  parts = base::SplitString(main_spec, "#", base::KEEP_WHITESPACE,
-                            base::SPLIT_WANT_NONEMPTY);
-  if (parts.size() == 2) {
-    size_t native_mode = 0;
-    int largest_area = -1;
-    float highest_refresh_rate = -1.0f;
-    main_spec = parts[0];
-    std::string resolution_list = parts[1];
-    parts = base::SplitString(resolution_list, "|", base::KEEP_WHITESPACE,
-                              base::SPLIT_WANT_NONEMPTY);
-    for (size_t i = 0; i < parts.size(); ++i) {
-      gfx::Size size;
-      float refresh_rate = 0.0f;
-      bool is_interlaced = false;
-
-      gfx::Rect mode_bounds;
-      std::vector<std::string> resolution = base::SplitString(
-          parts[i], "%", base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
-      if (GetDisplayBounds(resolution[0], &mode_bounds, &device_scale_factor)) {
-        size = mode_bounds.size();
-        if (resolution.size() > 1)
-          sscanf(resolution[1].c_str(), "%f", &refresh_rate);
-        if (size.GetArea() >= largest_area &&
-            refresh_rate > highest_refresh_rate) {
-          // Use mode with largest area and highest refresh rate as native.
-          largest_area = size.GetArea();
-          highest_refresh_rate = refresh_rate;
-          native_mode = i;
-        }
-        display_modes.push_back(make_scoped_refptr(
-            new ManagedDisplayMode(size, refresh_rate, is_interlaced, false,
-                                   1.0, device_scale_factor)));
-      }
-    }
-    scoped_refptr<ManagedDisplayMode> dm = display_modes[native_mode];
-    display_modes[native_mode] = new ManagedDisplayMode(
-        dm->size(), dm->refresh_rate(), dm->is_interlaced(), true,
-        dm->ui_scale(), dm->device_scale_factor());
-  }
-
-  if (id == display::Display::kInvalidDisplayID)
-    id = synthesized_display_id++;
-  DisplayInfo display_info(
-      id, base::StringPrintf("Display-%d", static_cast<int>(id)), has_overscan);
-  display_info.set_device_scale_factor(device_scale_factor);
-  display_info.SetRotation(rotation, display::Display::ROTATION_SOURCE_ACTIVE);
-  display_info.set_configured_ui_scale(ui_scale);
-  display_info.SetBounds(bounds_in_native);
-  display_info.SetManagedDisplayModes(display_modes);
-
-  // To test the overscan, it creates the default 5% overscan.
-  if (has_overscan) {
-    int width = bounds_in_native.width() / device_scale_factor / 40;
-    int height = bounds_in_native.height() / device_scale_factor / 40;
-    display_info.SetOverscanInsets(gfx::Insets(height, width, height, width));
-    display_info.UpdateDisplaySize();
-  }
-
-  DVLOG(1) << "DisplayInfoFromSpec info=" << display_info.ToString()
-           << ", spec=" << spec;
-  return display_info;
-}
-
-// static
-void DisplayInfo::SetUse125DSFForUIScalingForTest(bool enable) {
-  use_125_dsf_for_ui_scaling = enable;
-}
-
-DisplayInfo::DisplayInfo()
-    : id_(display::Display::kInvalidDisplayID),
-      has_overscan_(false),
-      active_rotation_source_(display::Display::ROTATION_SOURCE_UNKNOWN),
-      touch_support_(display::Display::TOUCH_SUPPORT_UNKNOWN),
-      device_scale_factor_(1.0f),
-      device_dpi_(kDpi96),
-      overscan_insets_in_dip_(0, 0, 0, 0),
-      configured_ui_scale_(1.0f),
-      native_(false),
-      is_aspect_preserving_scaling_(false),
-      clear_overscan_insets_(false),
-      color_profile_(ui::COLOR_PROFILE_STANDARD) {}
-
-DisplayInfo::DisplayInfo(int64_t id, const std::string& name, bool has_overscan)
-    : id_(id),
-      name_(name),
-      has_overscan_(has_overscan),
-      active_rotation_source_(display::Display::ROTATION_SOURCE_UNKNOWN),
-      touch_support_(display::Display::TOUCH_SUPPORT_UNKNOWN),
-      device_scale_factor_(1.0f),
-      device_dpi_(kDpi96),
-      overscan_insets_in_dip_(0, 0, 0, 0),
-      configured_ui_scale_(1.0f),
-      native_(false),
-      is_aspect_preserving_scaling_(false),
-      clear_overscan_insets_(false),
-      color_profile_(ui::COLOR_PROFILE_STANDARD) {}
-
-DisplayInfo::DisplayInfo(const DisplayInfo& other) = default;
-
-DisplayInfo::~DisplayInfo() {}
-
-void DisplayInfo::SetRotation(display::Display::Rotation rotation,
-                              display::Display::RotationSource source) {
-  rotations_[source] = rotation;
-  rotations_[display::Display::ROTATION_SOURCE_ACTIVE] = rotation;
-  active_rotation_source_ = source;
-}
-
-display::Display::Rotation DisplayInfo::GetActiveRotation() const {
-  return GetRotation(display::Display::ROTATION_SOURCE_ACTIVE);
-}
-
-display::Display::Rotation DisplayInfo::GetRotation(
-    display::Display::RotationSource source) const {
-  if (rotations_.find(source) == rotations_.end())
-    return display::Display::ROTATE_0;
-  return rotations_.at(source);
-}
-
-void DisplayInfo::Copy(const DisplayInfo& native_info) {
-  DCHECK(id_ == native_info.id_);
-  name_ = native_info.name_;
-  has_overscan_ = native_info.has_overscan_;
-
-  active_rotation_source_ = native_info.active_rotation_source_;
-  touch_support_ = native_info.touch_support_;
-  input_devices_ = native_info.input_devices_;
-  device_scale_factor_ = native_info.device_scale_factor_;
-  DCHECK(!native_info.bounds_in_native_.IsEmpty());
-  bounds_in_native_ = native_info.bounds_in_native_;
-  device_dpi_ = native_info.device_dpi_;
-  size_in_pixel_ = native_info.size_in_pixel_;
-  is_aspect_preserving_scaling_ = native_info.is_aspect_preserving_scaling_;
-  display_modes_ = native_info.display_modes_;
-  available_color_profiles_ = native_info.available_color_profiles_;
-  maximum_cursor_size_ = native_info.maximum_cursor_size_;
-
-  // Rotation, ui_scale, color_profile and overscan are given by preference,
-  // or unit tests. Don't copy if this native_info came from
-  // DisplayChangeObserver.
-  if (!native_info.native()) {
-    // Update the overscan_insets_in_dip_ either if the inset should be
-    // cleared, or has non empty insts.
-    if (native_info.clear_overscan_insets())
-      overscan_insets_in_dip_.Set(0, 0, 0, 0);
-    else if (!native_info.overscan_insets_in_dip_.IsEmpty())
-      overscan_insets_in_dip_ = native_info.overscan_insets_in_dip_;
-
-    rotations_ = native_info.rotations_;
-    configured_ui_scale_ = native_info.configured_ui_scale_;
-    color_profile_ = native_info.color_profile();
-  }
-}
-
-void DisplayInfo::SetBounds(const gfx::Rect& new_bounds_in_native) {
-  bounds_in_native_ = new_bounds_in_native;
-  size_in_pixel_ = new_bounds_in_native.size();
-  UpdateDisplaySize();
-}
-
-float DisplayInfo::GetEffectiveDeviceScaleFactor() const {
-  if (Use125DSFForUIScaling() && device_scale_factor_ == 1.25f)
-    return (configured_ui_scale_ == 0.8f) ? 1.25f : 1.0f;
-  if (device_scale_factor_ == configured_ui_scale_)
-    return 1.0f;
-  return device_scale_factor_;
-}
-
-float DisplayInfo::GetEffectiveUIScale() const {
-  if (Use125DSFForUIScaling() && device_scale_factor_ == 1.25f)
-    return (configured_ui_scale_ == 0.8f) ? 1.0f : configured_ui_scale_;
-  if (device_scale_factor_ == configured_ui_scale_)
-    return 1.0f;
-  return configured_ui_scale_;
-}
-
-void DisplayInfo::UpdateDisplaySize() {
-  size_in_pixel_ = bounds_in_native_.size();
-  if (!overscan_insets_in_dip_.IsEmpty()) {
-    gfx::Insets insets_in_pixel =
-        overscan_insets_in_dip_.Scale(device_scale_factor_);
-    size_in_pixel_.Enlarge(-insets_in_pixel.width(), -insets_in_pixel.height());
-  } else {
-    overscan_insets_in_dip_.Set(0, 0, 0, 0);
-  }
-
-  if (GetActiveRotation() == display::Display::ROTATE_90 ||
-      GetActiveRotation() == display::Display::ROTATE_270) {
-    size_in_pixel_.SetSize(size_in_pixel_.height(), size_in_pixel_.width());
-  }
-  gfx::SizeF size_f(size_in_pixel_);
-  size_f.Scale(GetEffectiveUIScale());
-  size_in_pixel_ = gfx::ToFlooredSize(size_f);
-}
-
-void DisplayInfo::SetOverscanInsets(const gfx::Insets& insets_in_dip) {
-  overscan_insets_in_dip_ = insets_in_dip;
-}
-
-gfx::Insets DisplayInfo::GetOverscanInsetsInPixel() const {
-  return overscan_insets_in_dip_.Scale(device_scale_factor_);
-}
-
-void DisplayInfo::SetManagedDisplayModes(
-    const ManagedDisplayModeList& display_modes) {
-  display_modes_ = display_modes;
-  std::sort(
-      display_modes_.begin(), display_modes_.end(),
-      ManagedDisplayModeSorter(display::Display::IsInternalDisplayId(id_)));
-}
-
-gfx::Size DisplayInfo::GetNativeModeSize() const {
-  for (size_t i = 0; i < display_modes_.size(); ++i) {
-    if (display_modes_[i]->native())
-      return display_modes_[i]->size();
-  }
-  return gfx::Size();
-}
-
-std::string DisplayInfo::ToString() const {
-  int rotation_degree = static_cast<int>(GetActiveRotation()) * 90;
-  std::string devices_str;
-
-  for (size_t i = 0; i < input_devices_.size(); ++i) {
-    devices_str += base::IntToString(input_devices_[i]);
-    if (i != input_devices_.size() - 1)
-      devices_str += ", ";
-  }
-
-  std::string result = base::StringPrintf(
-      "DisplayInfo[%lld] native bounds=%s, size=%s, scale=%f, "
-      "overscan=%s, rotation=%d, ui-scale=%f, touchscreen=%s, "
-      "input_devices=[%s]",
-      static_cast<long long int>(id_), bounds_in_native_.ToString().c_str(),
-      size_in_pixel_.ToString().c_str(), device_scale_factor_,
-      overscan_insets_in_dip_.ToString().c_str(), rotation_degree,
-      configured_ui_scale_,
-      touch_support_ == display::Display::TOUCH_SUPPORT_AVAILABLE
-          ? "yes"
-          : touch_support_ == display::Display::TOUCH_SUPPORT_UNAVAILABLE
-                ? "no"
-                : "unknown",
-      devices_str.c_str());
-
-  return result;
-}
-
-std::string DisplayInfo::ToFullString() const {
-  std::string display_modes_str;
-  ManagedDisplayModeList::const_iterator iter = display_modes_.begin();
-  for (; iter != display_modes_.end(); ++iter) {
-    scoped_refptr<ManagedDisplayMode> m(*iter);
-    if (!display_modes_str.empty())
-      display_modes_str += ",";
-    base::StringAppendF(&display_modes_str, "(%dx%d@%f%c%s)", m->size().width(),
-                        m->size().height(), m->refresh_rate(),
-                        m->is_interlaced() ? 'I' : 'P',
-                        m->native() ? "(N)" : "");
-  }
-  return ToString() + ", display_modes==" + display_modes_str;
-}
-
-void DisplayInfo::SetColorProfile(ui::ColorCalibrationProfile profile) {
-  if (IsColorProfileAvailable(profile))
-    color_profile_ = profile;
-}
-
-bool DisplayInfo::IsColorProfileAvailable(
-    ui::ColorCalibrationProfile profile) const {
-  return std::find(available_color_profiles_.begin(),
-                   available_color_profiles_.end(),
-                   profile) != available_color_profiles_.end();
-}
-
-bool DisplayInfo::Use125DSFForUIScaling() const {
-  return use_125_dsf_for_ui_scaling &&
-         display::Display::IsInternalDisplayId(id_);
-}
-
-void DisplayInfo::AddInputDevice(int id) {
-  input_devices_.push_back(id);
-}
-
-void DisplayInfo::ClearInputDevices() {
-  input_devices_.clear();
-}
-
-void ResetDisplayIdForTest() {
-  synthesized_display_id = kSynthesizedDisplayIdStart;
-}
-
-}  // namespace ash