terminal/scratch/ScratchIslandApp/SampleApp/SampleAppLogic.cpp

85 lines
2.7 KiB
C++

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
#include "pch.h"
#include "SampleAppLogic.h"
#include "SampleAppLogic.g.cpp"
#include <LibraryResources.h>
using namespace winrt::Windows::UI::Xaml;
using namespace winrt::Windows::UI::Xaml::Controls;
using namespace winrt::Windows::UI::Core;
using namespace winrt::Windows::System;
namespace winrt
{
namespace MUX = Microsoft::UI::Xaml;
using IInspectable = Windows::Foundation::IInspectable;
}
namespace winrt::SampleApp::implementation
{
// Function Description:
// - Get the SampleAppLogic for the current active Xaml application, or null if there isn't one.
// Return value:
// - A pointer (bare) to the SampleAppLogic, or nullptr. The app logic outlives all other objects,
// unless the application is in a terrible way, so this is "safe."
SampleAppLogic* SampleAppLogic::Current() noexcept
try
{
if (auto currentXamlApp{ winrt::Windows::UI::Xaml::Application::Current().try_as<winrt::SampleApp::App>() })
{
if (auto SampleAppLogicPointer{ winrt::get_self<SampleAppLogic>(currentXamlApp.Logic()) })
{
return SampleAppLogicPointer;
}
}
return nullptr;
}
catch (...)
{
LOG_CAUGHT_EXCEPTION();
return nullptr;
}
SampleAppLogic::SampleAppLogic()
{
// For your own sanity, it's better to do setup outside the ctor.
// If you do any setup in the ctor that ends up throwing an exception,
// then it might look like App just failed to activate, which will
// cause you to chase down the rabbit hole of "why is App not
// registered?" when it definitely is.
// The MyPage has to be constructed during our construction, to
// make sure that there's a terminal page for callers of
// SetTitleBarContent
_root = winrt::make_self<MyPage>();
}
// Method Description:
// - Build the UI for the terminal app. Before this method is called, it
// should not be assumed that the SampleApp is usable. The Settings
// should be loaded before this is called, either with LoadSettings or
// GetLaunchDimensions (which will call LoadSettings)
// Arguments:
// - <none>
// Return Value:
// - <none>
void SampleAppLogic::Create()
{
_root->Create();
}
UIElement SampleAppLogic::GetRoot() noexcept
{
return _root.as<winrt::Windows::UI::Xaml::Controls::Control>();
}
hstring SampleAppLogic::Title()
{
return _root->Title();
}
}