79 lines
2.7 KiB
C++
79 lines
2.7 KiB
C++
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// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT license.
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#include "pch.h"
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#include "SampleAppHost.h"
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#include "../types/inc/Viewport.hpp"
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#include "../types/inc/utils.hpp"
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#include "../types/inc/User32Utils.hpp"
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#include "resource.h"
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using namespace winrt::Windows::UI;
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using namespace winrt::Windows::UI::Composition;
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using namespace winrt::Windows::UI::Xaml;
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using namespace winrt::Windows::UI::Xaml::Hosting;
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using namespace winrt::Windows::Foundation::Numerics;
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using namespace ::Microsoft::Console;
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using namespace ::Microsoft::Console::Types;
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SampleAppHost::SampleAppHost() noexcept :
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_app{},
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_logic{ nullptr }, // don't make one, we're going to take a ref on app's
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_window{ nullptr }
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{
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_logic = _app.Logic(); // get a ref to app's logic
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_window = std::make_unique<SampleIslandWindow>();
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_window->MakeWindow();
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}
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SampleAppHost::~SampleAppHost()
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{
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// destruction order is important for proper teardown here
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_window = nullptr;
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_app.Close();
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_app = nullptr;
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}
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// Method Description:
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// - Initializes the XAML island, creates the terminal app, and sets the
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// island's content to that of the terminal app's content. Also registers some
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// callbacks with TermApp.
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// !!! IMPORTANT!!!
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// This must be called *AFTER* WindowsXamlManager::InitializeForCurrentThread.
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// If it isn't, then we won't be able to create the XAML island.
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// Arguments:
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// - <none>
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// Return Value:
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// - <none>
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void SampleAppHost::Initialize()
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{
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_window->Initialize();
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_logic.Create();
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_window->UpdateTitle(_logic.Title());
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// Set up the content of the application. If the app has a custom titlebar,
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// set that content as well.
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_window->SetContent(_logic.GetRoot());
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_window->OnAppInitialized();
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// THIS IS A HACK
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//
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// We've got a weird crash that happens terribly inconsistently, only in
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// Debug mode. Apparently, there's some weird ref-counting magic that goes
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// on during teardown, and our Application doesn't get closed quite right,
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// which can cause us to crash into the debugger. This of course, only
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// happens on exit, and happens somewhere in the XamlHost.dll code.
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//
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// Crazily, if we _manually leak the Application_ here, then the crash
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// doesn't happen. This doesn't matter, because we really want the
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// Application to live for _the entire lifetime of the process_, so the only
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// time when this object would actually need to get cleaned up is _during
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// exit_. So we can safely leak this Application object, and have it just
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// get cleaned up normally when our process exits.
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::winrt::SampleApp::App a{ _app };
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::winrt::detach_abi(a);
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}
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