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| 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. | |
| 4 | |
| 5 #ifndef ASH_DISPLAY_DISPLAY_MANAGER_H_ | |
| 6 #define ASH_DISPLAY_DISPLAY_MANAGER_H_ | |
| 7 | |
| 8 #include <stddef.h> | |
| 9 #include <stdint.h> | |
| 10 | |
| 11 #include <memory> | |
| 12 #include <string> | |
| 13 #include <vector> | |
| 14 | |
| 15 #include "ash/ash_export.h" | |
| 16 #include "base/compiler_specific.h" | |
| 17 #include "base/gtest_prod_util.h" | |
| 18 #include "base/macros.h" | |
| 19 #include "base/memory/ref_counted.h" | |
| 20 #include "base/memory/weak_ptr.h" | |
| 21 #include "base/observer_list.h" | |
| 22 #include "ui/display/display.h" | |
| 23 #include "ui/display/display_observer.h" | |
| 24 #include "ui/display/manager/display_layout.h" | |
| 25 #include "ui/display/manager/managed_display_info.h" | |
| 26 | |
| 27 #if defined(OS_CHROMEOS) | |
| 28 #include "ui/display/chromeos/display_configurator.h" | |
| 29 #endif | |
| 30 | |
| 31 namespace display { | |
| 32 class DisplayLayoutStore; | |
| 33 class DisplayObserver; | |
| 34 class Screen; | |
| 35 } | |
| 36 | |
| 37 namespace gfx { | |
| 38 class Insets; | |
| 39 class Rect; | |
| 40 } | |
| 41 | |
| 42 namespace ash { | |
| 43 using DisplayInfoList = std::vector<display::ManagedDisplayInfo>; | |
| 44 | |
| 45 namespace test { | |
| 46 class DisplayManagerTestApi; | |
| 47 } | |
| 48 | |
| 49 // DisplayManager maintains the current display configurations, | |
| 50 // and notifies observers when configuration changes. | |
| 51 // | |
| 52 // TODO(oshima): Make this non internal. | |
| 53 class ASH_EXPORT DisplayManager | |
| 54 #if defined(OS_CHROMEOS) | |
| 55 : public ui::DisplayConfigurator::SoftwareMirroringController | |
| 56 #endif | |
| 57 { | |
| 58 public: | |
| 59 class ASH_EXPORT Delegate { | |
| 60 public: | |
| 61 virtual ~Delegate() {} | |
| 62 | |
| 63 // Create or updates the mirroring window with |display_info_list|. | |
| 64 virtual void CreateOrUpdateMirroringDisplay( | |
| 65 const DisplayInfoList& display_info_list) = 0; | |
| 66 | |
| 67 // Closes the mirror window if not necessary. | |
| 68 virtual void CloseMirroringDisplayIfNotNecessary() = 0; | |
| 69 | |
| 70 // Called before and after the display configuration changes. | |
| 71 // When |clear_focus| is true, the implementation should | |
| 72 // deactivate the active window and set the focus window to NULL. | |
| 73 virtual void PreDisplayConfigurationChange(bool clear_focus) = 0; | |
| 74 virtual void PostDisplayConfigurationChange() = 0; | |
| 75 | |
| 76 #if defined(OS_CHROMEOS) | |
| 77 // Get the ui::DisplayConfigurator. | |
| 78 virtual ui::DisplayConfigurator* display_configurator() = 0; | |
| 79 #endif | |
| 80 | |
| 81 virtual std::string GetInternalDisplayNameString() = 0; | |
| 82 virtual std::string GetUnknownDisplayNameString() = 0; | |
| 83 }; | |
| 84 | |
| 85 // How the second display will be used. | |
| 86 // 1) EXTENDED mode extends the desktop to the second dislpay. | |
| 87 // 2) MIRRORING mode copies the content of the primary display to | |
| 88 // the 2nd display. (Software Mirroring). | |
| 89 // 3) UNIFIED mode creates single desktop across multiple displays. | |
| 90 enum MultiDisplayMode { | |
| 91 EXTENDED = 0, | |
| 92 MIRRORING, | |
| 93 UNIFIED, | |
| 94 }; | |
| 95 | |
| 96 // The display ID for a virtual display assigned to a unified desktop. | |
| 97 static int64_t kUnifiedDisplayId; | |
| 98 | |
| 99 explicit DisplayManager(std::unique_ptr<display::Screen> screen); | |
| 100 #if defined(OS_CHROMEOS) | |
| 101 ~DisplayManager() override; | |
| 102 #else | |
| 103 virtual ~DisplayManager(); | |
| 104 #endif | |
| 105 | |
| 106 display::DisplayLayoutStore* layout_store() { return layout_store_.get(); } | |
| 107 | |
| 108 void set_delegate(Delegate* delegate) { delegate_ = delegate; } | |
| 109 | |
| 110 // When set to true, the DisplayManager calls OnDisplayMetricsChanged | |
| 111 // even if the display's bounds didn't change. Used to swap primary | |
| 112 // display. | |
| 113 void set_force_bounds_changed(bool force_bounds_changed) { | |
| 114 force_bounds_changed_ = force_bounds_changed; | |
| 115 } | |
| 116 | |
| 117 // Returns the display id of the first display in the outupt list. | |
| 118 int64_t first_display_id() const { return first_display_id_; } | |
| 119 | |
| 120 // Initializes displays using command line flag. Returns false | |
| 121 // if no command line flag was provided. | |
| 122 bool InitFromCommandLine(); | |
| 123 | |
| 124 // Initialize default display. | |
| 125 void InitDefaultDisplay(); | |
| 126 | |
| 127 // Initializes font related params that depends on display | |
| 128 // configuration. | |
| 129 void RefreshFontParams(); | |
| 130 | |
| 131 // Returns the display layout used for current displays. | |
| 132 const display::DisplayLayout& GetCurrentDisplayLayout() const; | |
| 133 | |
| 134 // Returns the current display list. | |
| 135 display::DisplayIdList GetCurrentDisplayIdList() const; | |
| 136 | |
| 137 // Sets the layout for the current display pair. The |layout| specifies | |
| 138 // the locaion of the displays relative to their parents. | |
| 139 void SetLayoutForCurrentDisplays( | |
| 140 std::unique_ptr<display::DisplayLayout> layout); | |
| 141 | |
| 142 // Returns display for given |id|; | |
| 143 const display::Display& GetDisplayForId(int64_t id) const; | |
| 144 | |
| 145 // Finds the display that contains |point| in screeen coordinates. | |
| 146 // Returns invalid display if there is no display that can satisfy | |
| 147 // the condition. | |
| 148 const display::Display& FindDisplayContainingPoint( | |
| 149 const gfx::Point& point_in_screen) const; | |
| 150 | |
| 151 // Sets the work area's |insets| to the display given by |display_id|. | |
| 152 bool UpdateWorkAreaOfDisplay(int64_t display_id, const gfx::Insets& insets); | |
| 153 | |
| 154 // Registers the overscan insets for the display of the specified ID. Note | |
| 155 // that the insets size should be specified in DIP size. It also triggers the | |
| 156 // display's bounds change. | |
| 157 void SetOverscanInsets(int64_t display_id, const gfx::Insets& insets_in_dip); | |
| 158 | |
| 159 // Sets the display's rotation for the given |source|. The new |rotation| will | |
| 160 // also become active. | |
| 161 void SetDisplayRotation(int64_t display_id, | |
| 162 display::Display::Rotation rotation, | |
| 163 display::Display::RotationSource source); | |
| 164 | |
| 165 // Resets the UI scale of the display with |display_id| to the one defined in | |
| 166 // the default mode. | |
| 167 bool ResetDisplayToDefaultMode(int64_t display_id); | |
| 168 | |
| 169 // Sets the external display's configuration, including resolution change, | |
| 170 // ui-scale change, and device scale factor change. Returns true if it changes | |
| 171 // the display resolution so that the caller needs to show a notification in | |
| 172 // case the new resolution actually doesn't work. | |
| 173 bool SetDisplayMode( | |
| 174 int64_t display_id, | |
| 175 const scoped_refptr<display::ManagedDisplayMode>& display_mode); | |
| 176 | |
| 177 // Register per display properties. |overscan_insets| is NULL if | |
| 178 // the display has no custom overscan insets. | |
| 179 void RegisterDisplayProperty(int64_t display_id, | |
| 180 display::Display::Rotation rotation, | |
| 181 float ui_scale, | |
| 182 const gfx::Insets* overscan_insets, | |
| 183 const gfx::Size& resolution_in_pixels, | |
| 184 float device_scale_factor, | |
| 185 ui::ColorCalibrationProfile color_profile); | |
| 186 | |
| 187 // Register stored rotation properties for the internal display. | |
| 188 void RegisterDisplayRotationProperties(bool rotation_lock, | |
| 189 display::Display::Rotation rotation); | |
| 190 | |
| 191 // Returns the stored rotation lock preference if it has been loaded, | |
| 192 // otherwise false. | |
| 193 bool registered_internal_display_rotation_lock() const { | |
| 194 return registered_internal_display_rotation_lock_; | |
| 195 } | |
| 196 | |
| 197 // Returns the stored rotation preference for the internal display if it has | |
| 198 // been loaded, otherwise |display::Display::Rotate_0|. | |
| 199 display::Display::Rotation registered_internal_display_rotation() const { | |
| 200 return registered_internal_display_rotation_; | |
| 201 } | |
| 202 | |
| 203 // Returns the display mode of |display_id| which is currently used. | |
| 204 scoped_refptr<display::ManagedDisplayMode> GetActiveModeForDisplayId( | |
| 205 int64_t display_id) const; | |
| 206 | |
| 207 // Returns the display's selected mode. This returns false and doesn't | |
| 208 // set |mode_out| if the display mode is in default. | |
| 209 scoped_refptr<display::ManagedDisplayMode> GetSelectedModeForDisplayId( | |
| 210 int64_t display_id) const; | |
| 211 | |
| 212 // Tells if the virtual resolution feature is enabled. | |
| 213 bool IsDisplayUIScalingEnabled() const; | |
| 214 | |
| 215 // Returns the current overscan insets for the specified |display_id|. | |
| 216 // Returns an empty insets (0, 0, 0, 0) if no insets are specified for | |
| 217 // the display. | |
| 218 gfx::Insets GetOverscanInsets(int64_t display_id) const; | |
| 219 | |
| 220 // Sets the color calibration of the display to |profile|. | |
| 221 void SetColorCalibrationProfile(int64_t display_id, | |
| 222 ui::ColorCalibrationProfile profile); | |
| 223 | |
| 224 // Called when display configuration has changed. The new display | |
| 225 // configurations is passed as a vector of Display object, which | |
| 226 // contains each display's new infomration. | |
| 227 void OnNativeDisplaysChanged( | |
| 228 const std::vector<display::ManagedDisplayInfo>& display_info_list); | |
| 229 | |
| 230 // Updates the internal display data and notifies observers about the changes. | |
| 231 void UpdateDisplaysWith( | |
| 232 const std::vector<display::ManagedDisplayInfo>& display_info_list); | |
| 233 | |
| 234 // Updates current displays using current |display_info_|. | |
| 235 void UpdateDisplays(); | |
| 236 | |
| 237 // Returns the display at |index|. The display at 0 is | |
| 238 // no longer considered "primary". | |
| 239 const display::Display& GetDisplayAt(size_t index) const; | |
| 240 | |
| 241 const display::Display& GetPrimaryDisplayCandidate() const; | |
| 242 | |
| 243 // Returns the logical number of displays. This returns 1 | |
| 244 // when displays are mirrored. | |
| 245 size_t GetNumDisplays() const; | |
| 246 | |
| 247 // Returns only the currently active displays. This list does not include the | |
| 248 // displays that will be removed if |UpdateDisplaysWith| is currently | |
| 249 // executing. | |
| 250 // See https://crbug.com/632755 | |
| 251 const display::Displays& active_only_display_list() const { | |
| 252 return is_updating_display_list_ ? active_only_display_list_ | |
| 253 : active_display_list(); | |
| 254 } | |
| 255 | |
| 256 const display::Displays& active_display_list() const { | |
| 257 return active_display_list_; | |
| 258 } | |
| 259 | |
| 260 // Returns true if the display specified by |display_id| is currently | |
| 261 // connected and active. (mirroring display isn't active, for example). | |
| 262 bool IsActiveDisplayId(int64_t display_id) const; | |
| 263 | |
| 264 // Returns the number of connected displays. This returns 2 | |
| 265 // when displays are mirrored. | |
| 266 size_t num_connected_displays() const { return num_connected_displays_; } | |
| 267 | |
| 268 // Returns the mirroring status. | |
| 269 bool IsInMirrorMode() const; | |
| 270 int64_t mirroring_display_id() const { return mirroring_display_id_; } | |
| 271 const display::Displays& software_mirroring_display_list() const { | |
| 272 return software_mirroring_display_list_; | |
| 273 } | |
| 274 | |
| 275 // Sets/gets if the unified desktop feature is enabled. | |
| 276 void SetUnifiedDesktopEnabled(bool enabled); | |
| 277 bool unified_desktop_enabled() const { return unified_desktop_enabled_; } | |
| 278 | |
| 279 // Returns true if it's in unified desktop mode. | |
| 280 bool IsInUnifiedMode() const; | |
| 281 | |
| 282 // Returns the display used for software mirrroring. Returns invalid | |
| 283 // display if not found. | |
| 284 const display::Display GetMirroringDisplayById(int64_t id) const; | |
| 285 | |
| 286 // Retuns the display info associated with |display_id|. | |
| 287 const display::ManagedDisplayInfo& GetDisplayInfo(int64_t display_id) const; | |
| 288 | |
| 289 // Returns the human-readable name for the display |id|. | |
| 290 std::string GetDisplayNameForId(int64_t id); | |
| 291 | |
| 292 // Returns the display id that is capable of UI scaling. On device, | |
| 293 // this returns internal display's ID if its device scale factor is 2, | |
| 294 // or invalid ID if such internal display doesn't exist. On linux | |
| 295 // desktop, this returns the first display ID. | |
| 296 int64_t GetDisplayIdForUIScaling() const; | |
| 297 | |
| 298 // Change the mirror mode. | |
| 299 void SetMirrorMode(bool mirrored); | |
| 300 | |
| 301 // Used to emulate display change when run in a desktop environment instead | |
| 302 // of on a device. | |
| 303 void AddRemoveDisplay(); | |
| 304 void ToggleDisplayScaleFactor(); | |
| 305 | |
| 306 // SoftwareMirroringController override: | |
| 307 #if defined(OS_CHROMEOS) | |
| 308 void SetSoftwareMirroring(bool enabled) override; | |
| 309 bool SoftwareMirroringEnabled() const override; | |
| 310 #endif | |
| 311 | |
| 312 // Sets/gets default multi display mode. | |
| 313 void SetDefaultMultiDisplayModeForCurrentDisplays(MultiDisplayMode mode); | |
| 314 MultiDisplayMode current_default_multi_display_mode() const { | |
| 315 return current_default_multi_display_mode_; | |
| 316 } | |
| 317 | |
| 318 // Sets multi display mode. | |
| 319 void SetMultiDisplayMode(MultiDisplayMode mode); | |
| 320 | |
| 321 // Reconfigure display configuration using the same | |
| 322 // physical display. TODO(oshima): Refactor and move this | |
| 323 // impl to |SetDefaultMultiDisplayMode|. | |
| 324 void ReconfigureDisplays(); | |
| 325 | |
| 326 // Update the bounds of the display given by |display_id|. | |
| 327 bool UpdateDisplayBounds(int64_t display_id, const gfx::Rect& new_bounds); | |
| 328 | |
| 329 // Creates mirror window asynchronously if the software mirror mode | |
| 330 // is enabled. | |
| 331 void CreateMirrorWindowAsyncIfAny(); | |
| 332 | |
| 333 // A unit test may change the internal display id (which never happens on | |
| 334 // a real device). This will update the mode list for internal display | |
| 335 // for this test scenario. | |
| 336 void UpdateInternalManagedDisplayModeListForTest(); | |
| 337 | |
| 338 // Zoom the internal display. | |
| 339 bool ZoomInternalDisplay(bool up); | |
| 340 | |
| 341 // Reset the internal display zoom. | |
| 342 void ResetInternalDisplayZoom(); | |
| 343 | |
| 344 // Notifies observers of display configuration changes. | |
| 345 void NotifyMetricsChanged(const display::Display& display, uint32_t metrics); | |
| 346 void NotifyDisplayAdded(const display::Display& display); | |
| 347 void NotifyDisplayRemoved(const display::Display& display); | |
| 348 | |
| 349 // Delegated from the Screen implementation. | |
| 350 void AddObserver(display::DisplayObserver* observer); | |
| 351 void RemoveObserver(display::DisplayObserver* observer); | |
| 352 | |
| 353 // Returns a display::Display object for a secondary display if it exists | |
| 354 // or returns invalid display if there is no secondary display. | |
| 355 // TODO(rjkroege): Display swapping is an obsolete feature pre-dating | |
| 356 // multi-display support so remove it. | |
| 357 const display::Display& GetSecondaryDisplay() const; | |
| 358 | |
| 359 private: | |
| 360 friend class test::DisplayManagerTestApi; | |
| 361 | |
| 362 bool software_mirroring_enabled() const { | |
| 363 return multi_display_mode_ == MIRRORING; | |
| 364 }; | |
| 365 | |
| 366 void set_change_display_upon_host_resize(bool value) { | |
| 367 change_display_upon_host_resize_ = value; | |
| 368 } | |
| 369 | |
| 370 // Creates software mirroring display related information. The display | |
| 371 // used to mirror the content is removed from the |display_info_list|. | |
| 372 void CreateSoftwareMirroringDisplayInfo(DisplayInfoList* display_info_list); | |
| 373 | |
| 374 display::Display* FindDisplayForId(int64_t id); | |
| 375 | |
| 376 // Add the mirror display's display info if the software based | |
| 377 // mirroring is in use. | |
| 378 void AddMirrorDisplayInfoIfAny(DisplayInfoList* display_info_list); | |
| 379 | |
| 380 // Inserts and update the display::ManagedDisplayInfo according to the | |
| 381 // overscan | |
| 382 // state. Note that The display::ManagedDisplayInfo stored in the | |
| 383 // |internal_display_info_| | |
| 384 // can be different from |new_info| (due to overscan state), so | |
| 385 // you must use |GetDisplayInfo| to get the correct | |
| 386 // display::ManagedDisplayInfo for | |
| 387 // a display. | |
| 388 void InsertAndUpdateDisplayInfo(const display::ManagedDisplayInfo& new_info); | |
| 389 | |
| 390 // Called when the display info is updated through InsertAndUpdateDisplayInfo. | |
| 391 void OnDisplayInfoUpdated(const display::ManagedDisplayInfo& display_info); | |
| 392 | |
| 393 // Creates a display object from the display::ManagedDisplayInfo for | |
| 394 // |display_id|. | |
| 395 display::Display CreateDisplayFromDisplayInfoById(int64_t display_id); | |
| 396 | |
| 397 // Creates a display object from the display::ManagedDisplayInfo for | |
| 398 // |display_id| | |
| 399 // for | |
| 400 // mirroring. The size of the display will be scaled using |scale| | |
| 401 // with the offset using |origin|. | |
| 402 display::Display CreateMirroringDisplayFromDisplayInfoById( | |
| 403 int64_t display_id, | |
| 404 const gfx::Point& origin, | |
| 405 float scale); | |
| 406 | |
| 407 // Updates the bounds of all non-primary displays in |display_list| and | |
| 408 // append the indices of displays updated to |updated_indices|. | |
| 409 // When the size of |display_list| equals 2, the bounds are updated using | |
| 410 // the layout registered for the display pair. For more than 2 displays, | |
| 411 // the bounds are updated using horizontal layout. | |
| 412 void UpdateNonPrimaryDisplayBoundsForLayout( | |
| 413 display::Displays* display_list, | |
| 414 std::vector<size_t>* updated_indices); | |
| 415 | |
| 416 void CreateMirrorWindowIfAny(); | |
| 417 | |
| 418 void RunPendingTasksForTest(); | |
| 419 | |
| 420 // Applies the |layout| and updates the bounds of displays in |display_list|. | |
| 421 // |updated_ids| contains the ids for displays whose bounds have changed. | |
| 422 void ApplyDisplayLayout(const display::DisplayLayout& layout, | |
| 423 display::Displays* display_list, | |
| 424 std::vector<int64_t>* updated_ids); | |
| 425 | |
| 426 Delegate* delegate_; // not owned. | |
| 427 | |
| 428 std::unique_ptr<display::Screen> screen_; | |
| 429 | |
| 430 std::unique_ptr<display::DisplayLayoutStore> layout_store_; | |
| 431 | |
| 432 int64_t first_display_id_; | |
| 433 | |
| 434 // List of current active displays. | |
| 435 display::Displays active_display_list_; | |
| 436 // This list does not include the displays that will be removed if | |
| 437 // |UpdateDisplaysWith| is under execution. | |
| 438 // See https://crbug.com/632755 | |
| 439 display::Displays active_only_display_list_; | |
| 440 | |
| 441 // True if active_display_list is being modified and has displays that are not | |
| 442 // presently active. | |
| 443 // See https://crbug.com/632755 | |
| 444 bool is_updating_display_list_; | |
| 445 | |
| 446 int num_connected_displays_; | |
| 447 | |
| 448 bool force_bounds_changed_; | |
| 449 | |
| 450 // The mapping from the display ID to its internal data. | |
| 451 std::map<int64_t, display::ManagedDisplayInfo> display_info_; | |
| 452 | |
| 453 // Selected display modes for displays. Key is the displays' ID. | |
| 454 std::map<int64_t, scoped_refptr<display::ManagedDisplayMode>> display_modes_; | |
| 455 | |
| 456 // When set to true, the host window's resize event updates | |
| 457 // the display's size. This is set to true when running on | |
| 458 // desktop environment (for debugging) so that resizing the host | |
| 459 // window will update the display properly. This is set to false | |
| 460 // on device as well as during the unit tests. | |
| 461 bool change_display_upon_host_resize_; | |
| 462 | |
| 463 MultiDisplayMode multi_display_mode_; | |
| 464 MultiDisplayMode current_default_multi_display_mode_; | |
| 465 | |
| 466 int64_t mirroring_display_id_; | |
| 467 display::Displays software_mirroring_display_list_; | |
| 468 | |
| 469 // User preference for rotation lock of the internal display. | |
| 470 bool registered_internal_display_rotation_lock_; | |
| 471 | |
| 472 // User preference for the rotation of the internal display. | |
| 473 display::Display::Rotation registered_internal_display_rotation_; | |
| 474 | |
| 475 bool unified_desktop_enabled_; | |
| 476 | |
| 477 base::ObserverList<display::DisplayObserver> observers_; | |
| 478 | |
| 479 base::WeakPtrFactory<DisplayManager> weak_ptr_factory_; | |
| 480 | |
| 481 DISALLOW_COPY_AND_ASSIGN(DisplayManager); | |
| 482 }; | |
| 483 | |
| 484 } // namespace ash | |
| 485 | |
| 486 #endif // ASH_DISPLAY_DISPLAY_MANAGER_H_ | |
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Chromium Code Reviews
Issue 2445583002:
Relocate display_manager from ash to ui (Closed)
