Handle modified displays in mustash.

services/ui/display/platform_screen_ozone.h

 // Copyright 2016 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.
 
 #ifndef SERVICES_UI_DISPLAY_PLATFORM_SCREEN_OZONE_H_
 #define SERVICES_UI_DISPLAY_PLATFORM_SCREEN_OZONE_H_
 
 #include <stdint.h>
 
 #include <set>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "services/service_manager/public/cpp/connection.h"
 #include "services/service_manager/public/cpp/interface_factory.h"
 #include "services/ui/display/platform_screen.h"
+#include "services/ui/display/viewport_metrics.h"
 #include "services/ui/public/interfaces/display/display_controller.mojom.h"
 #include "services/ui/public/interfaces/display/test_display_controller.mojom.h"
 #include "ui/display/chromeos/display_configurator.h"
 #include "ui/display/display.h"
 #include "ui/display/types/fake_display_controller.h"
 
 namespace display {
 
 // PlatformScreenOzone provides the necessary functionality to configure all
 // attached physical displays on the ozone platform.
 class PlatformScreenOzone
     : public PlatformScreen,
       public ui::DisplayConfigurator::Observer,
+      public ui::DisplayConfigurator::StateController,
       public service_manager::InterfaceFactory<mojom::DisplayController>,
       public service_manager::InterfaceFactory<mojom::TestDisplayController>,
       public mojom::DisplayController,
       public mojom::TestDisplayController {
  public:
   PlatformScreenOzone();
   ~PlatformScreenOzone() override;
 
   // PlatformScreen:
   void AddInterfaces(service_manager::InterfaceRegistry* registry) override;
   void Init(PlatformScreenDelegate* delegate) override;
   void RequestCloseDisplay(int64_t display_id) override;
   int64_t GetPrimaryDisplayId() const override;
 
   // mojom::TestDisplayController:
   void ToggleAddRemoveDisplay() override;
+  void ToggleDisplayResolution() override;
 
   // mojom::DisplayController:
   void SwapPrimaryDisplay() override;
   void SetDisplayWorkArea(int64_t display_id,
                           const gfx::Size& size,
                           const gfx::Insets& insets) override;
 
  private:
   // TODO(kylechar): This struct is just temporary until we migrate
   // DisplayManager code out of ash so it can be used here.
   struct DisplayInfo {
+    DisplayInfo();
+    DisplayInfo(const DisplayInfo& other);
+    ~DisplayInfo();
+
     int64_t id = Display::kInvalidDisplayID;
-    // The display bounds in DIP.
-    gfx::Rect bounds;
-    // Display size in DDP.
-    gfx::Size pixel_size;
-    // The display device pixel scale factor, either 1 or 2.
-    float device_scale_factor = 1.0f;
+    // Information about display viewport.
+    ViewportMetrics metrics;
+    // Last insets received from WM.
+    gfx::Insets last_work_area_insets;
+
+    // Temporary hack to allow changing display resolution.
+    std::vector<gfx::Size> supported_sizes;
+    gfx::Size requested_size;
+
     // The display bounds have been modified and delegate should be updated.
     bool modified = false;
     // The display has been removed and delegate should be updated.
     bool removed = false;
   };
   using CachedDisplayIterator = std::vector<DisplayInfo>::iterator;
 
   // Processes list of display snapshots and sets |removed| on any displays that
   // have been removed. Updates |primary_display_id_| if the primary display was
   // removed. Does not remove displays from |cached_displays_| or send updates
@@ skipping 17 matching lines @@
 
   // Processes list of display snapshots and adds any new displays to
   // |cached_displays_|. Updates delegate by calling OnDisplayAdded().
   void AddNewDisplays(
       const ui::DisplayConfigurator::DisplayStateList& snapshots);
 
   // Returns an iterator to the cached display with |display_id| or an end
   // iterator if there is no display with that id.
   CachedDisplayIterator GetCachedDisplayIterator(int64_t display_id);
 
-  // Converts |snapshot| into a DisplayInfo.
-  DisplayInfo DisplayInfoFromSnapshot(const ui::DisplaySnapshot& snapshot);
+  // Converts |snapshot| into ViewportMetrics.
+  ViewportMetrics MetricsFromSnapshot(const ui::DisplaySnapshot& snapshot,
+                                      const gfx::Point& origin);
 
   // ui::DisplayConfigurator::Observer:
   void OnDisplayModeChanged(
       const ui::DisplayConfigurator::DisplayStateList& displays) override;
   void OnDisplayModeChangeFailed(
       const ui::DisplayConfigurator::DisplayStateList& displays,
       ui::MultipleDisplayState failed_new_state) override;
 
+  // ui::DisplayConfigurator::StateController:
+  ui::MultipleDisplayState GetStateForDisplayIds(
+      const ui::DisplayConfigurator::DisplayStateList& display_states)
+      const override;
+  bool GetResolutionForDisplayId(int64_t display_id,
+                                 gfx::Size* size) const override;
+
   // mojo::InterfaceFactory<mojom::DisplayController>:
   void Create(const service_manager::Identity& remote_identity,
               mojom::DisplayControllerRequest request) override;
 
   // mojo::InterfaceFactory<mojom::TestDisplayController>:
   void Create(const service_manager::Identity& remote_identity,
               mojom::TestDisplayControllerRequest request) override;
 
   ui::DisplayConfigurator display_configurator_;
   PlatformScreenDelegate* delegate_ = nullptr;
@@ skipping 13 matching lines @@
 
   mojo::BindingSet<mojom::DisplayController> controller_bindings_;
   mojo::BindingSet<mojom::TestDisplayController> test_bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(PlatformScreenOzone);
 };
 
 }  // namespace display
 
 #endif  // SERVICES_UI_DISPLAY_PLATFORM_SCREEN_OZONE_H_