terminal/src/cascadia/TerminalSettingsEditor/GlobalAppearance.h
Mike Griese c18c240627 Manually dismiss popups when the window moves, or the SUI scrolls (#10922)
BODGY!

This solution was suggested in https://github.com/microsoft/microsoft-ui-xaml/issues/4554#issuecomment-887815332.

When the window moves, or when a ScrollViewer scrolls, dismiss any popups that are visible. This happens automagically when an app is a real XAML app, but it doesn't work for XAML Islands.

* upstream at https://github.com/microsoft/microsoft-ui-xaml/issues/4554

* [x] Closes #9320
* [x] I work here
* [ ] Tests added/passed
* [ ] Requires documentation to be updated

Unfortunately, we've got a bunch of scroll viewers in our SUI. So I did something bodgyx2 to make our life a little easier.

`DismissAllPopups` can be used to dismiss all popups for a particular UI element. However, we've got a bunch of pages with scroll viewers that may or may not have popups in them. Rather than define the same exact body for all their `ViewChanging` events, the `HasScrollViewer` struct will just do it for you!

Inside the `HasScrollViewer` stuct, we can't get at the `XamlRoot()` that our subclass implements. I mean, _we_ can, but when XAML does it's codegen, _XAML_ won't be able to figure it out.

Fortunately for us, we don't need to! The sender is a UIElement, so we can just get _their_ `XamlRoot()`.

So, you can fix this for any SUI page with just a simple

```diff
-    <ScrollViewer>
+    <ScrollViewer ViewChanging="ViewChanging">
```

```diff
-    struct AddProfile : AddProfileT<AddProfile>
+    struct AddProfile : public HasScrollViewer<AddProfile>, AddProfileT<AddProfile>
```

* the window doesn't close when you move it
* the popups _do_ close when you move the window
* the popups close when you scroll any SUI page
2021-08-25 17:44:18 -05:00

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2.2 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 : public HasScrollViewer<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);
bool LanguageSelectorAvailable();
winrt::Windows::Foundation::Collections::IObservableVector<winrt::hstring> LanguageList();
winrt::Windows::Foundation::IInspectable CurrentLanguage();
void CurrentLanguage(const winrt::Windows::Foundation::IInspectable& tag);
private:
winrt::Windows::Foundation::Collections::IObservableVector<winrt::hstring> _languageList;
winrt::Windows::Foundation::IInspectable _currentLanguage;
};
}
namespace winrt::Microsoft::Terminal::Settings::Editor::factory_implementation
{
BASIC_FACTORY(GlobalAppearance);
}