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| 1 // Copyright 2016 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. |
| 4 |
| 5 #include "ui/display/fake_display_delegate.h" |
| 6 |
| 7 #include <string> |
| 8 |
| 9 #include "base/command_line.h" |
| 10 #include "base/hash.h" |
| 11 #include "base/logging.h" |
| 12 #include "base/memory/ptr_util.h" |
| 13 #include "base/strings/string_split.h" |
| 14 #include "base/strings/stringprintf.h" |
| 15 #include "ui/display/display.h" |
| 16 #include "ui/display/display_switches.h" |
| 17 #include "ui/display/types/native_display_observer.h" |
| 18 #include "ui/display/util/display_util.h" |
| 19 |
| 20 namespace display { |
| 21 |
| 22 namespace { |
| 23 |
| 24 // The EDID specification marks the top bit of the manufacturer id as reserved. |
| 25 const uint16_t kReservedManufacturerID = 1 << 15; |
| 26 |
| 27 // A random product name hash. |
| 28 const uint32_t kProductCodeHash = base::Hash("Very Generic Display"); |
| 29 |
| 30 } // namespace |
| 31 |
| 32 FakeDisplayDelegate::FakeDisplayDelegate() {} |
| 33 |
| 34 FakeDisplayDelegate::~FakeDisplayDelegate() {} |
| 35 |
| 36 int64_t FakeDisplayDelegate::AddDisplay(const gfx::Size& display_size) { |
| 37 if (next_display_id_ == 0xFF) { |
| 38 LOG(ERROR) << "Exceeded display id limit"; |
| 39 return display::Display::kInvalidDisplayID; |
| 40 } |
| 41 |
| 42 int64_t id = GenerateDisplayID(kReservedManufacturerID, kProductCodeHash, |
| 43 ++next_display_id_); |
| 44 // Add the first display as internal. |
| 45 ui::DisplayConnectionType type = displays_.empty() |
| 46 ? ui::DISPLAY_CONNECTION_TYPE_INTERNAL |
| 47 : ui::DISPLAY_CONNECTION_TYPE_UNKNOWN; |
| 48 std::string name = base::StringPrintf("Fake Display %d", next_display_id_); |
| 49 |
| 50 displays_.push_back( |
| 51 base::MakeUnique<FakeDisplaySnapshot>(id, display_size, type, name)); |
| 52 OnConfigurationChanged(); |
| 53 |
| 54 return id; |
| 55 } |
| 56 |
| 57 bool FakeDisplayDelegate::RemoveDisplay(int64_t display_id) { |
| 58 // Find display snapshot with matching id and remove it. |
| 59 for (auto iter = displays_.begin(); iter != displays_.end(); ++iter) { |
| 60 if ((*iter)->display_id() == display_id) { |
| 61 displays_.erase(iter); |
| 62 OnConfigurationChanged(); |
| 63 return true; |
| 64 } |
| 65 } |
| 66 |
| 67 return false; |
| 68 } |
| 69 |
| 70 void FakeDisplayDelegate::Initialize() { |
| 71 DCHECK(!initialized_); |
| 72 InitFromCommandLine(); |
| 73 |
| 74 // If no command line flags are provided then initialize a default display. |
| 75 if (displays_.empty()) |
| 76 AddDisplay(gfx::Size(1024, 768)); |
| 77 |
| 78 initialized_ = true; |
| 79 } |
| 80 |
| 81 void FakeDisplayDelegate::GrabServer() {} |
| 82 |
| 83 void FakeDisplayDelegate::UngrabServer() {} |
| 84 |
| 85 void FakeDisplayDelegate::TakeDisplayControl( |
| 86 const ui::DisplayControlCallback& callback) { |
| 87 callback.Run(false); |
| 88 } |
| 89 |
| 90 void FakeDisplayDelegate::RelinquishDisplayControl( |
| 91 const ui::DisplayControlCallback& callback) { |
| 92 callback.Run(false); |
| 93 } |
| 94 |
| 95 void FakeDisplayDelegate::SyncWithServer() {} |
| 96 |
| 97 void FakeDisplayDelegate::SetBackgroundColor(uint32_t color_argb) {} |
| 98 |
| 99 void FakeDisplayDelegate::ForceDPMSOn() {} |
| 100 |
| 101 void FakeDisplayDelegate::GetDisplays(const ui::GetDisplaysCallback& callback) { |
| 102 std::vector<ui::DisplaySnapshot*> displays; |
| 103 for (auto& display : displays_) |
| 104 displays.push_back(display.get()); |
| 105 callback.Run(displays); |
| 106 } |
| 107 |
| 108 void FakeDisplayDelegate::AddMode(const ui::DisplaySnapshot& output, |
| 109 const ui::DisplayMode* mode) {} |
| 110 |
| 111 void FakeDisplayDelegate::Configure(const ui::DisplaySnapshot& output, |
| 112 const ui::DisplayMode* mode, |
| 113 const gfx::Point& origin, |
| 114 const ui::ConfigureCallback& callback) { |
| 115 callback.Run(true); |
| 116 } |
| 117 |
| 118 void FakeDisplayDelegate::CreateFrameBuffer(const gfx::Size& size) {} |
| 119 |
| 120 void FakeDisplayDelegate::GetHDCPState( |
| 121 const ui::DisplaySnapshot& output, |
| 122 const ui::GetHDCPStateCallback& callback) { |
| 123 callback.Run(false, ui::HDCP_STATE_UNDESIRED); |
| 124 } |
| 125 |
| 126 void FakeDisplayDelegate::SetHDCPState( |
| 127 const ui::DisplaySnapshot& output, |
| 128 ui::HDCPState state, |
| 129 const ui::SetHDCPStateCallback& callback) { |
| 130 callback.Run(false); |
| 131 } |
| 132 |
| 133 std::vector<ui::ColorCalibrationProfile> |
| 134 FakeDisplayDelegate::GetAvailableColorCalibrationProfiles( |
| 135 const ui::DisplaySnapshot& output) { |
| 136 return std::vector<ui::ColorCalibrationProfile>(); |
| 137 } |
| 138 |
| 139 bool FakeDisplayDelegate::SetColorCalibrationProfile( |
| 140 const ui::DisplaySnapshot& output, |
| 141 ui::ColorCalibrationProfile new_profile) { |
| 142 return false; |
| 143 } |
| 144 |
| 145 bool FakeDisplayDelegate::SetColorCorrection( |
| 146 const ui::DisplaySnapshot& output, |
| 147 const std::vector<ui::GammaRampRGBEntry>& degamma_lut, |
| 148 const std::vector<ui::GammaRampRGBEntry>& gamma_lut, |
| 149 const std::vector<float>& correction_matrix) { |
| 150 return false; |
| 151 } |
| 152 |
| 153 void FakeDisplayDelegate::AddObserver(ui::NativeDisplayObserver* observer) { |
| 154 observers_.AddObserver(observer); |
| 155 } |
| 156 |
| 157 void FakeDisplayDelegate::RemoveObserver(ui::NativeDisplayObserver* observer) { |
| 158 observers_.RemoveObserver(observer); |
| 159 } |
| 160 |
| 161 FakeDisplayController* FakeDisplayDelegate::GetFakeDisplayController() { |
| 162 return static_cast<FakeDisplayController*>(this); |
| 163 } |
| 164 |
| 165 void FakeDisplayDelegate::InitFromCommandLine() { |
| 166 base::CommandLine* command_line = base::CommandLine::ForCurrentProcess(); |
| 167 if (!command_line->HasSwitch(switches::kScreenConfig)) |
| 168 return; |
| 169 |
| 170 const std::string command_string = |
| 171 command_line->GetSwitchValueASCII(switches::kScreenConfig); |
| 172 |
| 173 // Split on commas and parse each display string. |
| 174 for (std::string part : base::SplitString( |
| 175 command_string, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_ALL)) { |
| 176 int width = 0; |
| 177 int height = 0; |
| 178 if (sscanf(part.c_str(), "%dx%d", &width, &height) >= 2) { |
| 179 gfx::Size display_size(width, height); |
| 180 AddDisplay(display_size); |
| 181 } else { |
| 182 LOG(ERROR) << "Failed to parse display \"" << part << "\""; |
| 183 } |
| 184 } |
| 185 } |
| 186 |
| 187 void FakeDisplayDelegate::OnConfigurationChanged() { |
| 188 if (!initialized_) |
| 189 return; |
| 190 |
| 191 FOR_EACH_OBSERVER(ui::NativeDisplayObserver, observers_, |
| 192 OnConfigurationChanged()); |
| 193 } |
| 194 |
| 195 } // namespace display |
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