terminal/src/cascadia/TerminalSettingsEditor/GlobalAppearance.h
Leonard Hecker e34897cd1f
Add a language switcher using PrimaryLanguageOverride (#10309)
## Summary of the Pull Request

This PR adds a global "language" setting, which may be set to any supported BCP 47 tag.
Additionally a ComboBox is added to the settings UI under "Appearance", listing all languages with their localized names.

This PR introduces one new issue: If you change the language while the app is running, the UI will be in a torn state, as not all UI elements refresh automatically if the `PrimaryLanguageOverride` is changed.

## PR Checklist
* [x] Closes #5497
* [x] I work here
* [x] Tests added/passed
* [ ] Documentation updated. If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/terminal) and link it here: #xxx
* [x] Schema updated

## Validation Steps Performed

* UI language changes when changing the "language" in settings.json before starting WT / while WT is running. ✔️
* "language" field is removed from settings.json if "Use system default" is selected. ✔️
* "language" field is added or updated in settings.json if any other language is selected. ✔️
* Removes qps- languages if debugFeatures is false. ✔️
* Correctly refreshes all UI elements with the new language. 
2021-06-10 23:24:21 +00:00

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2.1 KiB
C++

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
#pragma once
#include "GlobalAppearance.g.h"
#include "GlobalAppearancePageNavigationState.g.h"
#include "Utils.h"
namespace winrt::Microsoft::Terminal::Settings::Editor::implementation
{
struct GlobalAppearancePageNavigationState : GlobalAppearancePageNavigationStateT<GlobalAppearancePageNavigationState>
{
public:
GlobalAppearancePageNavigationState(const Model::GlobalAppSettings& settings) :
_Globals{ settings } {}
WINRT_PROPERTY(Model::GlobalAppSettings, Globals, nullptr)
};
struct GlobalAppearance : GlobalAppearanceT<GlobalAppearance>
{
public:
GlobalAppearance();
void OnNavigatedTo(const winrt::Windows::UI::Xaml::Navigation::NavigationEventArgs& e);
WINRT_PROPERTY(Editor::GlobalAppearancePageNavigationState, State, nullptr);
GETSET_BINDABLE_ENUM_SETTING(Theme, winrt::Windows::UI::Xaml::ElementTheme, State().Globals, Theme);
GETSET_BINDABLE_ENUM_SETTING(TabWidthMode, winrt::Microsoft::UI::Xaml::Controls::TabViewWidthMode, State().Globals, TabWidthMode);
public:
// LanguageDisplayConverter maps the given BCP 47 tag to a localized string.
// For instance "en-US" produces "English (United States)", while "de-DE" produces
// "Deutsch (Deutschland)". This works independently of the user's locale.
static winrt::hstring LanguageDisplayConverter(const winrt::hstring& tag);
winrt::Windows::Foundation::Collections::IObservableVector<winrt::hstring> LanguageList();
winrt::Windows::Foundation::IInspectable CurrentLanguage();
void CurrentLanguage(const winrt::Windows::Foundation::IInspectable& tag);
private:
std::vector<winrt::hstring> _GetSupportedLanguageTags();
winrt::Windows::Foundation::Collections::IObservableVector<winrt::hstring> _languageList{ nullptr };
winrt::hstring _currentLanguage;
};
}
namespace winrt::Microsoft::Terminal::Settings::Editor::factory_implementation
{
BASIC_FACTORY(GlobalAppearance);
}