calculator/src/Calculator/Views/UnitConverter.xaml.cpp
Howard Wolosky c13b8a099e Hello GitHub
2019-01-28 16:24:37 -08:00

389 lines
12 KiB
C++

// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
// UnitConverter.xaml.cpp
// Implementation of the UnitConverter class
#include "pch.h"
#include "UnitConverter.xaml.h"
#include "CalcViewModel\UnitConverterViewModel.h"
#include "Controls\CalculationResult.h"
#include "Controls\CalculatorButton.h"
#include "CalcViewModel\Common\CopyPasteManager.h"
#include "CalcViewModel\Common\KeyboardShortcutManager.h"
#include "CalcViewModel\Common\LocalizationService.h"
#include "CalcViewModel\Common\LocalizationSettings.h"
using namespace CalculatorApp;
using namespace CalculatorApp::Common;
using namespace CalculatorApp::Controls;
using namespace concurrency;
using namespace Windows::System;
using namespace Platform;
using namespace ViewModel;
using namespace Windows::Foundation;
using namespace Windows::Foundation::Collections;
using namespace Windows::UI::Core;
using namespace Windows::UI::Text;
using namespace Windows::UI::Xaml;
using namespace Windows::UI::Xaml::Automation;
using namespace Windows::UI::Xaml::Automation::Peers;
using namespace Windows::UI::Xaml::Controls;
using namespace Windows::UI::Xaml::Controls::Primitives;
using namespace Windows::UI::Xaml::Data;
using namespace Windows::UI::Xaml::Documents;
using namespace Windows::UI::Xaml::Input;
using namespace Windows::UI::Xaml::Interop;
using namespace Windows::UI::Xaml::Media;
using namespace Windows::UI::Xaml::Navigation;
using namespace Windows::UI::ViewManagement;
// The User Control item template is documented at http://go.microsoft.com/fwlink/?LinkId=234236
// Calculate number of 100-nanosecond intervals in 500 milliseconds.
// There are 10,000 intervals in 1 ms.
static const long long DURATION_500_MS = 10000 * 500;
UnitConverter::UnitConverter() :
m_layoutDirection(::FlowDirection::LeftToRight),
m_meteredConnectionOverride(false),
m_isAnimationEnabled(false)
{
InitializeComponent();
//adding ESC key shortcut binding to clear button
clearEntryButtonPos0->SetValue(Common::KeyboardShortcutManager::VirtualKeyProperty, Common::MyVirtualKey::Escape);
m_layoutDirection = LocalizationService::GetInstance()->GetFlowDirection();
if (m_layoutDirection == ::FlowDirection::RightToLeft)
{
Units1->HorizontalContentAlignment = ::HorizontalAlignment::Right;
Units2->HorizontalContentAlignment = ::HorizontalAlignment::Right;
}
// Is currency symbol preference set to right side
bool preferRight = LocalizationSettings::GetInstance().GetCurrencySymbolPrecedence() == 0;
if (preferRight)
{
// Currency symbol should appear on the right. Reverse the order of children.
Grid::SetColumn(Value1, 0);
Grid::SetColumn(CurrencySymbol1Block, 1);
Grid::SetColumn(Value2, 0);
Grid::SetColumn(CurrencySymbol2Block, 1);
}
auto userSettings = ref new UISettings();
m_isAnimationEnabled = userSettings->AnimationsEnabled;
auto resLoader = AppResourceProvider::GetInstance();
m_chargesMayApplyText = resLoader.GetResourceString(L"DataChargesMayApply");
m_failedToRefreshText = resLoader.GetResourceString(L"FailedToRefresh");
InitializeOfflineStatusTextBlock();
m_resultsFlyout = static_cast<MenuFlyout^>(Resources->Lookup(L"CalculationResultContextMenu"));
CopyMenuItem->Text = resLoader.GetResourceString(L"copyMenuItem");
PasteMenuItem->Text = resLoader.GetResourceString(L"pasteMenuItem");
}
void UnitConverter::OnPropertyChanged(_In_ Object^ sender, _In_ PropertyChangedEventArgs^ e)
{
String^ propertyName = e->PropertyName;
if (propertyName->Equals(UnitConverterViewModelProperties::NetworkBehavior) ||
propertyName->Equals(UnitConverterViewModelProperties::CurrencyDataLoadFailed))
{
OnNetworkBehaviorChanged();
}
else if (propertyName->Equals(UnitConverterViewModelProperties::CurrencyDataIsWeekOld))
{
SetCurrencyTimestampFontWeight();
}
else if (propertyName->Equals(UnitConverterViewModelProperties::IsCurrencyLoadingVisible))
{
OnIsDisplayVisibleChanged();
}
}
void UnitConverter::OnNetworkBehaviorChanged()
{
switch (Model->NetworkBehavior)
{
case NetworkAccessBehavior::Normal:
OnNormalNetworkAccess();
break;
case NetworkAccessBehavior::OptIn:
OnOptInNetworkAccess();
break;
case NetworkAccessBehavior::Offline:
OnOfflineNetworkAccess();
break;
}
}
void UnitConverter::OnNormalNetworkAccess()
{
CurrencyRefreshBlockControl->Visibility = ::Visibility::Visible;
OfflineBlock->Visibility = ::Visibility::Collapsed;
if (Model->CurrencyDataLoadFailed)
{
SetFailedToRefreshStatus();
}
else
{
SetNormalCurrencyStatus();
}
}
void UnitConverter::OnOptInNetworkAccess()
{
CurrencyRefreshBlockControl->Visibility = ::Visibility::Visible;
OfflineBlock->Visibility = ::Visibility::Collapsed;
if (m_meteredConnectionOverride && Model->CurrencyDataLoadFailed)
{
SetFailedToRefreshStatus();
}
else
{
SetChargesMayApplyStatus();
}
}
void UnitConverter::OnOfflineNetworkAccess()
{
CurrencyRefreshBlockControl->Visibility = ::Visibility::Collapsed;
OfflineBlock->Visibility = ::Visibility::Visible;
}
void UnitConverter::SetNormalCurrencyStatus()
{
AutomationProperties::SetAccessibilityView(CurrencyRefreshBlock, AccessibilityView::Raw);
CurrencySecondaryStatus->Text = L"";
}
void UnitConverter::SetChargesMayApplyStatus()
{
VisualStateManager::GoToState(this, L"ChargesMayApplyCurrencyStatus", false);
CurrencySecondaryStatus->Text = m_chargesMayApplyText;
}
void UnitConverter::SetFailedToRefreshStatus()
{
VisualStateManager::GoToState(this, L"FailedCurrencyStatus", false);
CurrencySecondaryStatus->Text = m_failedToRefreshText;
}
void UnitConverter::InitializeOfflineStatusTextBlock()
{
auto resProvider = AppResourceProvider::GetInstance();
std::wstring offlineStatusHyperlinkText = static_cast<String^>(resProvider.GetResourceString(L"OfflineStatusHyperlinkText"))->Data();
// The resource string has the 'NetworkSettings' hyperlink wrapped with '%HL%'.
// Break the string and assign pieces appropriately.
static const std::wstring delimiter{ L"%HL%" };
static const size_t delimiterLength{ delimiter.length() };
// Find the delimiters.
size_t firstSplitPosition = offlineStatusHyperlinkText.find(delimiter, 0);
assert(firstSplitPosition != std::wstring::npos);
size_t secondSplitPosition = offlineStatusHyperlinkText.find(delimiter, firstSplitPosition + 1);
assert(secondSplitPosition != std::wstring::npos);
size_t hyperlinkTextLength = secondSplitPosition - (firstSplitPosition + delimiterLength);
// Assign pieces.
auto offlineStatusTextBeforeHyperlink = ref new String(offlineStatusHyperlinkText.substr(0, firstSplitPosition).c_str());
auto offlineStatusTextLink = ref new String(offlineStatusHyperlinkText.substr(firstSplitPosition + delimiterLength, hyperlinkTextLength).c_str());
auto offlineStatusTextAfterHyperlink = ref new String(offlineStatusHyperlinkText.substr(secondSplitPosition + delimiterLength).c_str());
OfflineRunBeforeLink->Text = offlineStatusTextBeforeHyperlink;
OfflineRunLink->Text = offlineStatusTextLink;
OfflineRunAfterLink->Text = offlineStatusTextAfterHyperlink;
AutomationProperties::SetName(OfflineBlock,
offlineStatusTextBeforeHyperlink + L" " +
offlineStatusTextLink + L" " +
offlineStatusTextAfterHyperlink);
}
void UnitConverter::SetCurrencyTimestampFontWeight()
{
if (Model->CurrencyDataIsWeekOld)
{
VisualStateManager::GoToState(this, L"WeekOldTimestamp", false);
}
else
{
VisualStateManager::GoToState(this, L"DefaultTimestamp", false);
}
}
void UnitConverter::OnValueKeyDown(Platform::Object^ sender, Windows::UI::Xaml::Input::KeyRoutedEventArgs^ e)
{
if (e->Key == VirtualKey::Space)
{
OnValueSelected(sender);
}
}
void UnitConverter::OnContextRequested(UIElement^ sender, ContextRequestedEventArgs^ e)
{
OnValueSelected(sender);
auto requestedElement = safe_cast<FrameworkElement^>(sender);
PasteMenuItem->IsEnabled = CopyPasteManager::HasStringToPaste();
Point point;
if (e->TryGetPosition(requestedElement, &point))
{
m_resultsFlyout->ShowAt(requestedElement, point);
}
else
{
// Not invoked via pointer, so let XAML choose a default location.
m_resultsFlyout->ShowAt(requestedElement);
}
e->Handled = true;
}
void UnitConverter::OnContextCanceled(UIElement^ sender, RoutedEventArgs^ e)
{
m_resultsFlyout->Hide();
}
void UnitConverter::OnCopyMenuItemClicked(_In_ Object^ sender, _In_ RoutedEventArgs^ e)
{
auto calcResult = safe_cast<CalculationResult^>(m_resultsFlyout->Target);
CopyPasteManager::CopyToClipboard(calcResult->GetRawDisplayValue());
}
void UnitConverter::OnPasteMenuItemClicked(_In_ Object^ sender, _In_ RoutedEventArgs^ e)
{
CopyPasteManager::GetStringToPaste(Model->Mode, CategoryGroupType::Converter).then([this](String^ pastedString)
{
Model->OnPaste(pastedString, Model->Mode);
});
}
void UnitConverter::AnimateConverter()
{
if (App::IsAnimationEnabled())
{
AnimationStory->Begin();
}
}
void UnitConverter::OnValueSelected(_In_ Platform::Object^ sender)
{
auto value = safe_cast<CalculationResult^>(sender);
//update the font size since the font is changed to bold
value->UpdateTextState();
safe_cast<UnitConverterViewModel^>(this->DataContext)->OnValueActivated(AsActivatable(value));
}
void UnitConverter::UpdateDropDownState(_In_ Platform::Object^ sender, _In_ Platform::Object^ e)
{
safe_cast<UnitConverterViewModel^>(this->DataContext)->IsDropDownOpen = (Units1->IsDropDownOpen) || (Units2->IsDropDownOpen);
KeyboardShortcutManager::UpdateDropDownState((Units1->IsDropDownOpen) || (Units2->IsDropDownOpen));
}
void UnitConverter::OnLoaded(_In_ Object^, _In_ RoutedEventArgs^)
{
}
void UnitConverter::SetDefaultFocus()
{
const std::vector<Control^> focusPrecedence = {
Value1,
CurrencyRefreshBlockControl,
OfflineBlock,
clearEntryButtonPos0
};
for (Control^ control : focusPrecedence)
{
if (control->Focus(::FocusState::Programmatic))
{
break;
}
}
}
void UnitConverter::CurrencyRefreshButton_Click(_In_ Object^ /*sender*/, _In_ RoutedEventArgs^ /*e*/)
{
if (Model->NetworkBehavior == NetworkAccessBehavior::OptIn)
{
m_meteredConnectionOverride = true;
}
Model->RefreshCurrencyRatios();
}
void UnitConverter::OnDataContextChanged(_In_ FrameworkElement^ sender, _In_ DataContextChangedEventArgs^ args)
{
Model->PropertyChanged -= m_propertyChangedToken;
m_propertyChangedToken =
Model->PropertyChanged += ref new PropertyChangedEventHandler(this, &UnitConverter::OnPropertyChanged);
OnNetworkBehaviorChanged();
}
void UnitConverter::Units1_IsEnabledChanged(Object^ sender, DependencyPropertyChangedEventArgs^ e)
{
if ((Units1->Visibility == ::Visibility::Visible) && Units1->IsEnabled)
{
SetDefaultFocus();
}
}
void UnitConverter::OnIsDisplayVisibleChanged()
{
if (Model->IsCurrencyLoadingVisible)
{
StartProgressRingWithDelay();
}
else
{
HideProgressRing();
if (m_isAnimationEnabled && Model->IsCurrencyCurrentCategory && !Model->CurrencyTimestamp->IsEmpty())
{
TimestampFadeInAnimation->Begin();
}
}
}
void UnitConverter::StartProgressRingWithDelay()
{
HideProgressRing();
TimeSpan delay{};
delay.Duration = DURATION_500_MS;
m_delayTimer = ref new DispatcherTimer();
m_delayTimer->Interval = delay;
m_delayTimer->Tick += ref new EventHandler<Object^>(this, &UnitConverter::OnDelayTimerTick);
m_delayTimer->Start();
}
void UnitConverter::OnDelayTimerTick(Object^ /*sender*/, Object^ /*e*/)
{
CurrencyLoadingProgressRing->IsActive = true;
m_delayTimer->Stop();
}
void UnitConverter::HideProgressRing()
{
if (m_delayTimer != nullptr)
{
m_delayTimer->Stop();
}
CurrencyLoadingProgressRing->IsActive = false;
}