3e2b94334d
This commit introduces the terminal settings editor (to wit: the Settings UI) as a standalone project. This project, and this commit, is the result of two and a half months of work. TSE started as a hackathon project in the Microsoft 2020 Hackathon, and from there it's grown to be a bona-fide graphical settings editor. There is a lot of xaml data binding in here, a number of views and a number of view models, and a bunch of paradigms that we've been reviewing and testing out and designing and refining. Specified in #6720, #8269 Follow-up work in #6800 Closes #1564 Closes #8048 (PR) Co-authored-by: Carlos Zamora <carlos.zamora@microsoft.com> Co-authored-by: Kayla Cinnamon <cinnamon@microsoft.com> Co-authored-by: Alberto Medina Gutierrez <almedina@microsoft.com> Co-authored-by: John Grandle <jograndl@microsoft.com> Co-authored-by: xerootg <xerootg@users.noreply.github.com> Co-authored-by: Scott <sarmiger1@gmail.com> Co-authored-by: Vineeth Thomas Alex <vineeththomasalex@gmail.com> Co-authored-by: Leon Liang <lelian@microsoft.com> Co-authored-by: Dustin L. Howett <duhowett@microsoft.com> Signed-off-by: Dustin L. Howett <duhowett@microsoft.com>
75 lines
2.7 KiB
C++
75 lines
2.7 KiB
C++
// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT license.
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#pragma once
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#include "../inc/cppwinrt_utils.h"
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template<typename T>
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struct ViewModelHelper
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{
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public:
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winrt::event_token PropertyChanged(::winrt::Windows::UI::Xaml::Data::PropertyChangedEventHandler const& handler)
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{
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return _propertyChangedHandlers.add(handler);
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}
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void PropertyChanged(winrt::event_token const& token)
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{
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_propertyChangedHandlers.remove(token);
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}
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protected:
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void _NotifyChangeCore(const std::wstring_view name)
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{
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_propertyChangedHandlers(*static_cast<T*>(this), ::winrt::Windows::UI::Xaml::Data::PropertyChangedEventArgs{ name });
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}
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// template recursion base case: single dispatch
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void _NotifyChanges(const std::wstring_view name) { _NotifyChangeCore(name); }
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template<typename... Args>
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void _NotifyChanges(const std::wstring_view name, Args&&... more)
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{
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_NotifyChangeCore(name);
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_NotifyChanges(std::forward<Args>(more)...);
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}
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private:
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winrt::event<::winrt::Windows::UI::Xaml::Data::PropertyChangedEventHandler> _propertyChangedHandlers;
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};
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#define _BASE_OBSERVABLE_PROJECTED_SETTING(target, name) \
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public: \
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auto name() const noexcept { return target.name(); }; \
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template<typename T> \
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void name(const T& value) \
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{ \
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if (name() != value) \
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{ \
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target.name(value); \
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_NotifyChanges(L"Has" #name, L#name); \
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} \
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} \
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bool Has##name() { return target.Has##name(); }
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// Defines a setting that reflects another object's same-named
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// setting.
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#define OBSERVABLE_PROJECTED_SETTING(target, name) \
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_BASE_OBSERVABLE_PROJECTED_SETTING(target, name) \
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void Clear##name() \
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{ \
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const auto hadValue{ target.Has##Name() }; \
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target.Clear##name(); \
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if (hadValue) \
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{ \
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_NotifyChanges(L"Has" #name, L#name); \
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} \
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}
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// Defines a setting that reflects another object's same-named
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// setting, but which cannot be erased.
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#define PERMANENT_OBSERVABLE_PROJECTED_SETTING(target, name) \
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_BASE_OBSERVABLE_PROJECTED_SETTING(target, name) \
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void Clear##name() {}
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