Relocate reuseable portions of ash/display/display_util.*

ui/display/manager/display_manager_utilities.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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.
 
-#include "ash/display/display_util.h"
+#include "ui/display/manager/display_manager_utilities.h"
 
 #include <algorithm>
+#include <vector>
 
-#include "ash/common/new_window_delegate.h"
-#include "ash/common/system/system_notifier.h"
-#include "ash/common/wm_shell.h"
-#include "ash/display/display_manager.h"
-#include "ash/host/ash_window_tree_host.h"
-#include "ash/shell.h"
-#include "base/strings/string_number_conversions.h"
-#include "grit/ash_resources.h"
-#include "ui/aura/env.h"
-#include "ui/aura/window_tree_host.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/display/display.h"
+#include "base/sys_info.h"
 #include "ui/display/manager/managed_display_info.h"
-#include "ui/gfx/geometry/point.h"
-#include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/size_conversions.h"
-#include "ui/message_center/message_center.h"
-#include "ui/message_center/notification.h"
-#include "ui/message_center/notification_delegate.h"
-#include "ui/message_center/notification_list.h"
-#include "ui/wm/core/coordinate_conversion.h"
+#include "ui/gfx/geometry/size_f.h"
 
-#if defined(OS_CHROMEOS)
-#include "base/sys_info.h"
-#endif
+namespace display {
 
-namespace ash {
 namespace {
 
-const char kDisplayErrorNotificationId[] = "chrome://settings/display/error";
-
-// A notification delegate that will start the feedback app when the notication
-// is clicked.
-class DisplayErrorNotificationDelegate
-    : public message_center::NotificationDelegate {
- public:
-  DisplayErrorNotificationDelegate() = default;
-
-  // message_center::NotificationDelegate:
-  bool HasClickedListener() override { return true; }
-
-  void Click() override {
-    WmShell::Get()->new_window_delegate()->OpenFeedbackPage();
-  }
-
- private:
-  // Private destructor since NotificationDelegate is ref-counted.
-  ~DisplayErrorNotificationDelegate() override = default;
-
-  DISALLOW_COPY_AND_ASSIGN(DisplayErrorNotificationDelegate);
-};
-
 // List of value UI Scale values. Scales for 2x are equivalent to 640,
 // 800, 1024, 1280, 1440, 1600 and 1920 pixel width respectively on
 // 2560 pixel width 2x density display. Please see crbug.com/233375
 // for the full list of resolutions.
 const float kUIScalesFor2x[] = {0.5f,   0.625f, 0.8f, 1.0f,
                                 1.125f, 1.25f,  1.5f, 2.0f};
 const float kUIScalesFor1_25x[] = {0.5f, 0.625f, 0.8f, 1.0f, 1.25f};
 const float kUIScalesFor1280[] = {0.5f, 0.625f, 0.8f, 1.0f, 1.125f};
 const float kUIScalesFor1366[] = {0.5f, 0.6f, 0.75f, 1.0f, 1.125f};
 
@@ skipping 30 matching lines @@
   explicit ScaleComparator(float s) : scale(s) {}
 
   bool operator()(
       const scoped_refptr<display::ManagedDisplayMode>& mode) const {
     const float kEpsilon = 0.0001f;
     return std::abs(scale - mode->ui_scale()) < kEpsilon;
   }
   float scale;
 };
 
-void ConvertPointFromScreenToNative(aura::WindowTreeHost* host,
-                                    gfx::Point* point) {
-  ::wm::ConvertPointFromScreen(host->window(), point);
-  host->ConvertPointToNativeScreen(point);
-}
-
-scoped_refptr<display::ManagedDisplayMode> GetDisplayModeForUIScale(
-    const display::ManagedDisplayInfo& info,
-    float ui_scale) {
-  const display::ManagedDisplayInfo::ManagedDisplayModeList& modes =
-      info.display_modes();
-  auto iter = std::find_if(
-      modes.begin(), modes.end(),
-      [ui_scale](const scoped_refptr<display::ManagedDisplayMode>& mode) {
-        return mode->ui_scale() == ui_scale;
-      });
-  if (iter == modes.end())
-    return scoped_refptr<display::ManagedDisplayMode>();
-  return *iter;
-}
-
 scoped_refptr<display::ManagedDisplayMode> FindNextMode(
     const display::ManagedDisplayInfo::ManagedDisplayModeList& modes,
     size_t index,
     bool up) {
   DCHECK_LT(index, modes.size());
   size_t new_index = index;
   if (up && (index + 1 < modes.size()))
     ++new_index;
   else if (!up && index != 0)
     --new_index;
   return modes[new_index];
 }
 
 }  // namespace
 
 display::ManagedDisplayInfo::ManagedDisplayModeList
 CreateInternalManagedDisplayModeList(
     const scoped_refptr<display::ManagedDisplayMode>& native_mode) {
   display::ManagedDisplayInfo::ManagedDisplayModeList display_mode_list;
 
   float native_ui_scale = (native_mode->device_scale_factor() == 1.25f)
                               ? 1.0f
                               : native_mode->device_scale_factor();
   for (float ui_scale : GetScalesForDisplay(native_mode)) {
-    scoped_refptr<display::ManagedDisplayMode> mode(
-        new display::ManagedDisplayMode(
-            native_mode->size(), native_mode->refresh_rate(),
-            native_mode->is_interlaced(), ui_scale == native_ui_scale, ui_scale,
-            native_mode->device_scale_factor()));
+    scoped_refptr<ManagedDisplayMode> mode(new ManagedDisplayMode(
+        native_mode->size(), native_mode->refresh_rate(),
+        native_mode->is_interlaced(), ui_scale == native_ui_scale, ui_scale,
+        native_mode->device_scale_factor()));
     display_mode_list.push_back(mode);
   }
   return display_mode_list;
 }
 
 display::ManagedDisplayInfo::ManagedDisplayModeList
 CreateUnifiedManagedDisplayModeList(
     const scoped_refptr<display::ManagedDisplayMode>& native_mode,
     const std::set<std::pair<float, float>>& dsf_scale_list) {
   display::ManagedDisplayInfo::ManagedDisplayModeList display_mode_list;
@@ skipping 38 matching lines @@
     LOG(WARNING) << "Unsupported resolution was requested:"
                  << resolution.ToString();
     return scoped_refptr<display::ManagedDisplayMode>();
   }
   return *iter;
 }
 
 scoped_refptr<display::ManagedDisplayMode> GetDisplayModeForNextUIScale(
     const display::ManagedDisplayInfo& info,
     bool up) {
-  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
-  if (!display_manager->IsActiveDisplayId(info.id()) ||
-      !display::Display::IsInternalDisplayId(info.id())) {
-    return scoped_refptr<display::ManagedDisplayMode>();
-  }
-  const display::ManagedDisplayInfo::ManagedDisplayModeList& modes =
+  const ManagedDisplayInfo::ManagedDisplayModeList& modes =
       info.display_modes();
   ScaleComparator comparator(info.configured_ui_scale());
   auto iter = std::find_if(modes.begin(), modes.end(), comparator);
   return FindNextMode(modes, iter - modes.begin(), up);
 }
 
 scoped_refptr<display::ManagedDisplayMode> GetDisplayModeForNextResolution(
     const display::ManagedDisplayInfo& info,
     bool up) {
   if (display::Display::IsInternalDisplayId(info.id()))
     return scoped_refptr<display::ManagedDisplayMode>();
 
   const display::ManagedDisplayInfo::ManagedDisplayModeList& modes =
       info.display_modes();
   scoped_refptr<display::ManagedDisplayMode> tmp =
       new display::ManagedDisplayMode(info.size_in_pixel(), 0.0, false, false,
                                       1.0, info.device_scale_factor());
   gfx::Size resolution = tmp->GetSizeInDIP(false);
 
   auto iter = std::find_if(
       modes.begin(), modes.end(),
       [resolution](const scoped_refptr<display::ManagedDisplayMode>& mode) {
         return mode->GetSizeInDIP(false) == resolution;
       });
   return FindNextMode(modes, iter - modes.begin(), up);
 }
 
-bool SetDisplayUIScale(int64_t id, float ui_scale) {
-  DisplayManager* display_manager = Shell::GetInstance()->display_manager();
-  if (!display_manager->IsActiveDisplayId(id) ||
-      !display::Display::IsInternalDisplayId(id)) {
-    return false;
-  }
-  const display::ManagedDisplayInfo& info = display_manager->GetDisplayInfo(id);
-
-  scoped_refptr<display::ManagedDisplayMode> mode =
-      GetDisplayModeForUIScale(info, ui_scale);
-  if (!mode)
-    return false;
-  return display_manager->SetDisplayMode(id, mode);
-}
-
-bool HasDisplayModeForUIScale(const display::ManagedDisplayInfo& info,
-                              float ui_scale) {
+bool HasDisplayModeForUIScale(const ManagedDisplayInfo& info, float ui_scale) {
   ScaleComparator comparator(ui_scale);
   const display::ManagedDisplayInfo::ManagedDisplayModeList& modes =
       info.display_modes();
   return std::find_if(modes.begin(), modes.end(), comparator) != modes.end();
 }
 
 bool ComputeBoundary(const display::Display& a_display,
                      const display::Display& b_display,
                      gfx::Rect* a_edge_in_screen,
                      gfx::Rect* b_edge_in_screen) {
@@ skipping 52 matching lines @@
       } else {
         a_edge_in_screen->SetRect(a_bounds.right() - 1, top, 1, bottom - top);
         b_edge_in_screen->SetRect(b_bounds.x(), top, 1, bottom - top);
       }
       break;
     }
   }
   return true;
 }
 
-gfx::Rect GetNativeEdgeBounds(AshWindowTreeHost* ash_host,
-                              const gfx::Rect& bounds_in_screen) {
-  aura::WindowTreeHost* host = ash_host->AsWindowTreeHost();
-  gfx::Rect native_bounds = host->GetBounds();
-  native_bounds.Inset(ash_host->GetHostInsets());
-  gfx::Point start_in_native = bounds_in_screen.origin();
-  gfx::Point end_in_native = bounds_in_screen.bottom_right();
-
-  ConvertPointFromScreenToNative(host, &start_in_native);
-  ConvertPointFromScreenToNative(host, &end_in_native);
-
-  if (std::abs(start_in_native.x() - end_in_native.x()) <
-      std::abs(start_in_native.y() - end_in_native.y())) {
-    // vertical in native
-    int x = std::abs(native_bounds.x() - start_in_native.x()) <
-                    std::abs(native_bounds.right() - start_in_native.x())
-                ? native_bounds.x()
-                : native_bounds.right() - 1;
-    return gfx::Rect(x, std::min(start_in_native.y(), end_in_native.y()), 1,
-                     std::abs(end_in_native.y() - start_in_native.y()));
-  } else {
-    // horizontal in native
-    int y = std::abs(native_bounds.y() - start_in_native.y()) <
-                    std::abs(native_bounds.bottom() - start_in_native.y())
-                ? native_bounds.y()
-                : native_bounds.bottom() - 1;
-    return gfx::Rect(std::min(start_in_native.x(), end_in_native.x()), y,
-                     std::abs(end_in_native.x() - start_in_native.x()), 1);
-  }
-}
-
-// Moves the cursor to the point inside the root that is closest to
-// the point_in_screen, which is outside of the root window.
-void MoveCursorTo(AshWindowTreeHost* ash_host,
-                  const gfx::Point& point_in_screen,
-                  bool update_last_location_now) {
-  aura::WindowTreeHost* host = ash_host->AsWindowTreeHost();
-  gfx::Point point_in_native = point_in_screen;
-  ::wm::ConvertPointFromScreen(host->window(), &point_in_native);
-  host->ConvertPointToNativeScreen(&point_in_native);
-
-  // now fit the point inside the native bounds.
-  gfx::Rect native_bounds = host->GetBounds();
-  gfx::Point native_origin = native_bounds.origin();
-  native_bounds.Inset(ash_host->GetHostInsets());
-  // Shrink further so that the mouse doesn't warp on the
-  // edge. The right/bottom needs to be shrink by 2 to subtract
-  // the 1 px from width/height value.
-  native_bounds.Inset(1, 1, 2, 2);
-
-  // Ensure that |point_in_native| is inside the |native_bounds|.
-  point_in_native.SetToMax(native_bounds.origin());
-  point_in_native.SetToMin(native_bounds.bottom_right());
-
-  gfx::Point point_in_host = point_in_native;
-
-  point_in_host.Offset(-native_origin.x(), -native_origin.y());
-  host->MoveCursorToHostLocation(point_in_host);
-
-  if (update_last_location_now) {
-    gfx::Point new_point_in_screen;
-    if (Shell::GetInstance()->display_manager()->IsInUnifiedMode()) {
-      new_point_in_screen = point_in_host;
-      // First convert to the unified host.
-      host->ConvertPointFromHost(&new_point_in_screen);
-      // Then convert to the unified screen.
-      Shell::GetPrimaryRootWindow()->GetHost()->ConvertPointFromHost(
-          &new_point_in_screen);
-    } else {
-      new_point_in_screen = point_in_native;
-      host->ConvertPointFromNativeScreen(&new_point_in_screen);
-      ::wm::ConvertPointToScreen(host->window(), &new_point_in_screen);
-    }
-    aura::Env::GetInstance()->set_last_mouse_location(new_point_in_screen);
-  }
-}
-
 int FindDisplayIndexContainingPoint(
     const std::vector<display::Display>& displays,
     const gfx::Point& point_in_screen) {
   auto iter = std::find_if(displays.begin(), displays.end(),
                            [point_in_screen](const display::Display& display) {
                              return display.bounds().Contains(point_in_screen);
                            });
   return iter == displays.end() ? -1 : (iter - displays.begin());
 }
 
@@ skipping 22 matching lines @@
   DCHECK_NE(id1, id2);
   // Output index is stored in the first 8 bits. See GetDisplayIdFromEDID
   // in edid_parser.cc.
   int index_1 = id1 & 0xFF;
   int index_2 = id2 & 0xFF;
   DCHECK_NE(index_1, index_2) << id1 << " and " << id2;
   return display::Display::IsInternalDisplayId(id1) ||
          (index_1 < index_2 && !display::Display::IsInternalDisplayId(id2));
 }
 
-#if defined(OS_CHROMEOS)
-void ShowDisplayErrorNotification(int message_id) {
-  // Always remove the notification to make sure the notification appears
-  // as a popup in any situation.
-  message_center::MessageCenter::Get()->RemoveNotification(
-      kDisplayErrorNotificationId, false /* by_user */);
-
-  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-  std::unique_ptr<message_center::Notification> notification(
-      new message_center::Notification(
-          message_center::NOTIFICATION_TYPE_SIMPLE, kDisplayErrorNotificationId,
-          base::string16(),  // title
-          l10n_util::GetStringUTF16(message_id),
-          bundle.GetImageNamed(IDR_AURA_NOTIFICATION_DISPLAY),
-          base::string16(),  // display_source
-          GURL(), message_center::NotifierId(
-                      message_center::NotifierId::SYSTEM_COMPONENT,
-                      system_notifier::kNotifierDisplayError),
-          message_center::RichNotificationData(),
-          new DisplayErrorNotificationDelegate));
-  message_center::MessageCenter::Get()->AddNotification(
-      std::move(notification));
-}
-#endif
-
-base::string16 GetDisplayErrorNotificationMessageForTest() {
-  message_center::NotificationList::Notifications notifications =
-      message_center::MessageCenter::Get()->GetVisibleNotifications();
-  for (auto* const notification : notifications) {
-    if (notification->id() == kDisplayErrorNotificationId)
-      return notification->message();
-  }
-  return base::string16();
-}
-
-}  // namespace ash
+}  // namespace display