| // Copyright 2017 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/ui/demo/mus_demo_external.h" |
| |
| #include "base/command_line.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "services/service_manager/public/cpp/service_context.h" |
| #include "services/ui/demo/window_tree_data.h" |
| #include "services/ui/public/interfaces/constants.mojom.h" |
| #include "services/ui/public/interfaces/window_tree_host.mojom.h" |
| #include "ui/aura/mus/window_tree_client.h" |
| #include "ui/aura/mus/window_tree_host_mus.h" |
| #include "ui/display/display.h" |
| |
| namespace ui { |
| namespace demo { |
| |
| namespace { |
| |
| class WindowTreeDataExternal : public WindowTreeData { |
| public: |
| // Creates a new window tree host associated to the WindowTreeData. |
| WindowTreeDataExternal(aura::WindowTreeClient* window_tree_client, |
| int square_size) |
| : WindowTreeData(square_size) {} |
| |
| DISALLOW_COPY_AND_ASSIGN(WindowTreeDataExternal); |
| }; |
| |
| int GetSquareSizeForWindow(int window_index) { |
| return 50 * window_index + 400; |
| }; |
| |
| } // namespace |
| |
| MusDemoExternal::MusDemoExternal() {} |
| |
| MusDemoExternal::~MusDemoExternal() {} |
| |
| std::unique_ptr<aura::WindowTreeClient> |
| MusDemoExternal::CreateWindowTreeClient() { |
| return std::make_unique<aura::WindowTreeClient>(context()->connector(), this); |
| } |
| |
| void MusDemoExternal::OnStartImpl() { |
| const base::CommandLine* command_line = |
| base::CommandLine::ForCurrentProcess(); |
| if (command_line->HasSwitch("external-window-count")) { |
| if (!base::StringToSizeT( |
| command_line->GetSwitchValueASCII("external-window-count"), |
| &number_of_windows_)) { |
| LOG(FATAL) << "Invalid value for \'external-window-count\'"; |
| return; |
| } |
| } |
| |
| // TODO(tonikitoo,fwang): Implement management of displays in external mode. |
| // For now, a fake display is created in order to work around an assertion in |
| // aura::GetDeviceScaleFactorFromDisplay(). |
| AddPrimaryDisplay(display::Display(0)); |
| |
| // The number of windows to open is specified by number_of_windows_. The |
| // windows are opened sequentially (the first one here and the others after |
| // each call to OnEmbed) to ensure that the WindowTreeHostMus passed to |
| // OnEmbed corresponds to the WindowTreeDataExternal::host_ created in |
| // OpenNewWindow. |
| OpenNewWindow(); |
| |
| // TODO(tonikitoo,msisov): For true external window mode, we want a slightly |
| // different API: it would connect to MUS, creating a unique WindowTree |
| // instance, capable of serving 0..n WindowTreeHost's. |
| window_tree_client()->ConnectViaWindowTreeHostFactory(); |
| } |
| |
| void MusDemoExternal::OpenNewWindow() { |
| // TODO(tonikitoo,msisov): Extend the WindowTreeClient API to allow creation |
| // of various window tree host. Currently is only works once, and is |
| // incorrect when kNumberOfWindows > 1. |
| AppendWindowTreeData(std::make_unique<WindowTreeDataExternal>( |
| window_tree_client(), |
| GetSquareSizeForWindow(initialized_windows_count_))); |
| } |
| |
| void MusDemoExternal::OnEmbed( |
| std::unique_ptr<aura::WindowTreeHostMus> window_tree_host) { |
| InitWindowTreeData(std::move(window_tree_host)); |
| initialized_windows_count_++; |
| |
| // Open the next window until the requested number of windows is reached. |
| if (initialized_windows_count_ < number_of_windows_) |
| OpenNewWindow(); |
| } |
| |
| void MusDemoExternal::OnEmbedRootDestroyed( |
| aura::WindowTreeHostMus* window_tree_host) { |
| RemoveWindowTreeData(window_tree_host); |
| } |
| |
| } // namespace demo |
| } // namespace ui |