95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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#include "pch.h"
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#include "TitleBarHelper.h"
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#include "Converters\BooleanToVisibilityConverter.h"
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#include "CalcViewModel\ViewState.h"
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using namespace CalculatorApp::Common;
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using namespace CalculatorApp::Converters;
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using namespace Platform;
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using namespace std;
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using namespace Windows::ApplicationModel::Core;
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using namespace Windows::Foundation;
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using namespace Windows::UI::Xaml;
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unique_ptr<TitleBarHelper> TitleBarHelper::CreateTitleBarHelperIfNotDocked(FrameworkElement^ customTitleBar)
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{
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return (App::GetAppViewState() == ViewState::DockedView)
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? nullptr
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: CalculatorApp::Common::TitleBarHelper::CreateTitleBarHelper(customTitleBar);
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}
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unique_ptr<TitleBarHelper> TitleBarHelper::CreateTitleBarHelper(_In_ FrameworkElement^ customTitleBar)
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{
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assert(customTitleBar != nullptr);
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if (customTitleBar != nullptr)
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{
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CoreApplicationViewTitleBar^ coreTitleBar = CoreApplication::GetCurrentView()->TitleBar;
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assert(coreTitleBar != nullptr);
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if (coreTitleBar != nullptr)
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{
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return make_unique<TitleBarHelper>(coreTitleBar, customTitleBar);
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}
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}
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return nullptr;
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}
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TitleBarHelper::TitleBarHelper(_In_ CoreApplicationViewTitleBar^ coreTitleBar, _In_ FrameworkElement^ customTitleBar) :
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m_coreTitleBar(coreTitleBar),
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m_customTitleBar(customTitleBar)
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{
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RegisterForLayoutChanged();
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RegisterForVisibilityChanged();
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SetCustomTitleBar();
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}
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TitleBarHelper::~TitleBarHelper()
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{
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m_coreTitleBar->LayoutMetricsChanged -= m_layoutChangedToken;
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m_coreTitleBar->IsVisibleChanged -= m_visibilityChangedToken;
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}
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void TitleBarHelper::SetTitleBarHeight(double height)
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{
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m_customTitleBar->Height = height;
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}
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void TitleBarHelper::SetTitleBarVisibility(bool isVisible)
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{
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m_customTitleBar->Visibility = BooleanToVisibilityConverter::Convert(isVisible);
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}
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void TitleBarHelper::RegisterForLayoutChanged()
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{
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m_layoutChangedToken =
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m_coreTitleBar->LayoutMetricsChanged += ref new TypedEventHandler<CoreApplicationViewTitleBar^, Object^>(
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[this](CoreApplicationViewTitleBar^ cTitleBar, Object^)
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{
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// Update title bar control size as needed to account for system size changes
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SetTitleBarHeight(cTitleBar->Height);
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});
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}
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void TitleBarHelper::RegisterForVisibilityChanged()
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{
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m_visibilityChangedToken =
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m_coreTitleBar->IsVisibleChanged += ref new TypedEventHandler<CoreApplicationViewTitleBar^, Object^>(
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[this](CoreApplicationViewTitleBar^ cTitleBar, Object^)
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{
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// Update title bar visibility
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SetTitleBarVisibility(cTitleBar->IsVisible);
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});
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}
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void TitleBarHelper::SetCustomTitleBar()
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{
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// Set custom XAML Title Bar
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m_coreTitleBar->ExtendViewIntoTitleBar = true;
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SetTitleBarHeight(m_coreTitleBar->Height);
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SetTitleBarVisibility(m_coreTitleBar->IsVisible);
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Window::Current->SetTitleBar(m_customTitleBar);
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}
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