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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ash/display/event_transformation_handler.h" | 5 #include "ash/display/event_transformation_handler.h" |
| 6 | 6 |
| 7 #include <cmath> | 7 #include <cmath> |
| 8 | 8 |
| 9 #include "ash/shell.h" | 9 #include "ash/shell.h" |
| 10 #include "ash/wm/coordinate_conversion.h" | 10 #include "ash/wm/coordinate_conversion.h" |
| 11 #include "ash/wm/window_util.h" | 11 #include "ash/wm/window_util.h" |
| 12 #include "ui/aura/window.h" | 12 #include "ui/aura/window.h" |
| 13 #include "ui/aura/window_event_dispatcher.h" | 13 #include "ui/aura/window_event_dispatcher.h" |
| 14 #include "ui/compositor/dip_util.h" | 14 #include "ui/compositor/dip_util.h" |
| 15 #include "ui/events/event.h" | 15 #include "ui/events/event.h" |
| 16 #include "ui/gfx/display.h" | 16 #include "ui/gfx/display.h" |
| 17 #include "ui/gfx/screen.h" | 17 #include "ui/gfx/screen.h" |
| 18 | 18 |
| 19 #if defined(OS_CHROMEOS) | 19 #if defined(OS_CHROMEOS) |
| 20 #include "ui/display/chromeos/output_configurator.h" | 20 #include "ui/display/chromeos/display_configurator.h" |
| 21 #endif // defined(OS_CHROMEOS) | 21 #endif // defined(OS_CHROMEOS) |
| 22 | 22 |
| 23 namespace ash { | 23 namespace ash { |
| 24 namespace { | 24 namespace { |
| 25 | 25 |
| 26 // Boost factor for non-integrated displays. | 26 // Boost factor for non-integrated displays. |
| 27 const float kBoostForNonIntegrated = 1.20f; | 27 const float kBoostForNonIntegrated = 1.20f; |
| 28 } | 28 } |
| 29 | 29 |
| 30 EventTransformationHandler::EventTransformationHandler() | 30 EventTransformationHandler::EventTransformationHandler() |
| (...skipping 21 matching lines...) Expand all Loading... |
| 52 } | 52 } |
| 53 | 53 |
| 54 #if defined(OS_CHROMEOS) | 54 #if defined(OS_CHROMEOS) |
| 55 // This is to scale the TouchEvent's radius when the touch display is in | 55 // This is to scale the TouchEvent's radius when the touch display is in |
| 56 // mirror mode. TouchEvent's radius is often reported in the touchscreen's | 56 // mirror mode. TouchEvent's radius is often reported in the touchscreen's |
| 57 // native resolution. In mirror mode, the touch display could be configured | 57 // native resolution. In mirror mode, the touch display could be configured |
| 58 // at a lower resolution. We scale down the radius using the ratio defined as | 58 // at a lower resolution. We scale down the radius using the ratio defined as |
| 59 // the sqrt of | 59 // the sqrt of |
| 60 // (mirror_width * mirror_height) / (native_width * native_height) | 60 // (mirror_width * mirror_height) / (native_width * native_height) |
| 61 void EventTransformationHandler::OnTouchEvent(ui::TouchEvent* event) { | 61 void EventTransformationHandler::OnTouchEvent(ui::TouchEvent* event) { |
| 62 using ui::OutputConfigurator; | 62 using ui::DisplayConfigurator; |
| 63 OutputConfigurator* output_configurator = | 63 DisplayConfigurator* display_configurator = |
| 64 ash::Shell::GetInstance()->output_configurator(); | 64 ash::Shell::GetInstance()->display_configurator(); |
| 65 | 65 |
| 66 // Check output_configurator's output_state instead of checking | 66 // Check display_configurator's output_state instead of checking |
| 67 // DisplayManager::IsMirrored() because the compositor based mirroring | 67 // DisplayManager::IsMirrored() because the compositor based mirroring |
| 68 // won't cause the scaling issue. | 68 // won't cause the scaling issue. |
| 69 if (output_configurator->output_state() != ui::OUTPUT_STATE_DUAL_MIRROR) | 69 if (display_configurator->output_state() != ui::OUTPUT_STATE_DUAL_MIRROR) |
| 70 return; | 70 return; |
| 71 | 71 |
| 72 const std::map<int, float>& area_ratio_map = | 72 const std::map<int, float>& area_ratio_map = |
| 73 output_configurator->GetMirroredDisplayAreaRatioMap(); | 73 display_configurator->GetMirroredDisplayAreaRatioMap(); |
| 74 | 74 |
| 75 // TODO(miletus): When there are more than 1 touchscreen (e.g. Link connected | 75 // TODO(miletus): When there are more than 1 touchscreen (e.g. Link connected |
| 76 // to an external touchscreen), the correct way to do is to have a way | 76 // to an external touchscreen), the correct way to do is to have a way |
| 77 // to find out which touchscreen is the event originating from and use the | 77 // to find out which touchscreen is the event originating from and use the |
| 78 // area ratio of that touchscreen to scale the event's radius. | 78 // area ratio of that touchscreen to scale the event's radius. |
| 79 // Tracked here crbug.com/233245 | 79 // Tracked here crbug.com/233245 |
| 80 if (area_ratio_map.size() != 1) { | 80 if (area_ratio_map.size() != 1) { |
| 81 LOG(ERROR) << "Mirroring mode with " << area_ratio_map.size() | 81 LOG(ERROR) << "Mirroring mode with " << area_ratio_map.size() |
| 82 << " touch display found"; | 82 << " touch display found"; |
| 83 return; | 83 return; |
| 84 } | 84 } |
| 85 | 85 |
| 86 float area_ratio_sqrt = std::sqrt(area_ratio_map.begin()->second); | 86 float area_ratio_sqrt = std::sqrt(area_ratio_map.begin()->second); |
| 87 event->set_radius_x(event->radius_x() * area_ratio_sqrt); | 87 event->set_radius_x(event->radius_x() * area_ratio_sqrt); |
| 88 event->set_radius_y(event->radius_y() * area_ratio_sqrt); | 88 event->set_radius_y(event->radius_y() * area_ratio_sqrt); |
| 89 } | 89 } |
| 90 #endif // defined(OS_CHROMEOS) | 90 #endif // defined(OS_CHROMEOS) |
| 91 | 91 |
| 92 } // namespace ash | 92 } // namespace ash |
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