| // Copyright 2018 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 "services/ws/screen_provider.h" |
| |
| #include "ui/display/display_observer.h" |
| #include "ui/display/screen.h" |
| |
| using display::Display; |
| using display::Screen; |
| |
| namespace ws { |
| namespace { |
| |
| int64_t GetPrimaryDisplayId() { |
| return Screen::GetScreen()->GetPrimaryDisplay().id(); |
| } |
| |
| int64_t GetInternalDisplayId() { |
| return Display::HasInternalDisplay() ? Display::InternalDisplayId() |
| : display::kInvalidDisplayId; |
| } |
| |
| } // namespace |
| |
| ScreenProvider::ScreenProvider() { |
| Screen::GetScreen()->AddObserver(this); |
| } |
| |
| ScreenProvider::~ScreenProvider() { |
| Screen::GetScreen()->RemoveObserver(this); |
| } |
| |
| void ScreenProvider::AddObserver(mojom::ScreenProviderObserver* observer) { |
| observers_.AddObserver(observer); |
| NotifyObserver(observer); |
| } |
| |
| void ScreenProvider::RemoveObserver(mojom::ScreenProviderObserver* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| void ScreenProvider::SetFrameDecorationValues( |
| const gfx::Insets& client_area_insets, |
| int max_title_bar_button_width) { |
| client_area_insets_ = client_area_insets; |
| max_title_bar_button_width_ = max_title_bar_button_width; |
| } |
| |
| void ScreenProvider::SetDisplayForNewWindows(int64_t display_id) { |
| if (display_id == display_id_for_new_windows_) |
| return; |
| display_id_for_new_windows_ = display_id; |
| NotifyAllObservers(); |
| } |
| |
| void ScreenProvider::DisplayMetricsChanged(const display::Display& display, |
| uint32_t changed_metrics) { |
| if ((changed_metrics & |
| display::DisplayObserver::DISPLAY_METRIC_DEVICE_SCALE_FACTOR) != 0) { |
| NotifyAllObservers(); |
| } |
| } |
| |
| void ScreenProvider::OnDidProcessDisplayChanges() { |
| // Display changes happen in batches, so notify observers after the batch is |
| // complete, rather than on every add/remove/metrics change. |
| NotifyAllObservers(); |
| } |
| |
| void ScreenProvider::NotifyAllObservers() { |
| for (mojom::ScreenProviderObserver& observer : observers_) |
| NotifyObserver(&observer); |
| } |
| |
| void ScreenProvider::NotifyObserver(mojom::ScreenProviderObserver* observer) { |
| observer->OnDisplaysChanged(GetAllDisplays(), GetPrimaryDisplayId(), |
| GetInternalDisplayId(), |
| display_id_for_new_windows_); |
| } |
| |
| std::vector<mojom::WsDisplayPtr> ScreenProvider::GetAllDisplays() { |
| std::vector<Display> displays = Screen::GetScreen()->GetAllDisplays(); |
| |
| std::vector<mojom::WsDisplayPtr> ws_displays; |
| ws_displays.reserve(displays.size()); |
| |
| for (const Display& display : displays) { |
| mojom::WsDisplayPtr ws_display = mojom::WsDisplay::New(); |
| ws_display->display = display; |
| ws_display->frame_decoration_values = GetFrameDecorationValues(); |
| ws_displays.push_back(std::move(ws_display)); |
| } |
| |
| return ws_displays; |
| } |
| |
| mojom::FrameDecorationValuesPtr ScreenProvider::GetFrameDecorationValues() { |
| mojom::FrameDecorationValuesPtr values = mojom::FrameDecorationValues::New(); |
| // TODO(jamescook): These insets are always the same. Collapse them. |
| values->normal_client_area_insets = client_area_insets_; |
| values->maximized_client_area_insets = client_area_insets_; |
| values->max_title_bar_button_width = max_title_bar_button_width_; |
| return values; |
| } |
| |
| } // namespace ws |