terminal/src/cascadia/TerminalApp/AppLogic.idl
Carlos Zamora 22fd06e19b
Introduce ActionMap to Terminal Settings Model (#9621)
This entirely removes `KeyMapping` from the settings model, and builds on the work done in #9543 to consolidate all actions (key bindings and commands) into a unified data structure (`ActionMap`).

## References
#9428 - Spec
#6900 - Actions page

Closes #7441

## Detailed Description of the Pull Request / Additional comments
The important thing here is to remember that we're shifting our philosophy of how to interact/represent actions. Prior to this, the actions arrays in the JSON would be deserialized twice: once for key bindings, and again for commands. By thinking of every entry in the relevant JSON as a `Command`, we can remove a lot of the context switching between working with a key binding vs a command palette item.

#9543 allows us to make that shift. Given the work in that PR, we can now deserialize all of the relevant information from each JSON action item. This allows us to simplify `ActionMap::FromJson` to simply iterate over each JSON action item, deserialize it, and add it to our `ActionMap`.

Internally, our `ActionMap` operates as discussed in #9428 by maintaining a `_KeyMap` that points to an action ID, and using that action ID to retrieve the `Command` from the `_ActionMap`. Adding actions to the `ActionMap` automatically accounts for name/key-chord collisions. A `NameMap` can be constructed when requested; this is for the Command Palette.

Querying the `ActionMap` is fairly straightforward. Helper functions were needed to be able to distinguish an explicit unbinding vs the command not being found in the current layer. Internally, we store explicitly unbound names/key-chords as `ShortcutAction::Invalid` commands. However, we return `nullptr` when a query points to an unbound command. This is done to hide this complexity away from any caller.

The command palette still needs special handling for nested and iterable commands. Thankfully, the expansion of iterable commands is performed on an `IMapView`, so we can just expose `NameMap` as a consolidation of `ActionMap`'s `NameMap` with its parents. The same can be said for exposing key chords in nested commands.

## Validation Steps Performed

All local tests pass.
2021-05-04 21:50:13 -07:00

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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
import "TerminalPage.idl";
import "ShortcutActionDispatch.idl";
import "IDirectKeyListener.idl";
namespace TerminalApp
{
struct InitialPosition
{
Int64 X;
Int64 Y;
};
[default_interface] runtimeclass FindTargetWindowResult
{
Int32 WindowId { get; };
String WindowName { get; };
};
[default_interface] runtimeclass AppLogic : IDirectKeyListener, IDialogPresenter
{
AppLogic();
// For your own sanity, it's better to do setup outside the ctor.
// If you do any setup in the ctor that ends up throwing an exception,
// then it might look like TermApp just failed to activate, which will
// cause you to chase down the rabbit hole of "why is TermApp not
// registered?" when it definitely is.
void Create();
Boolean IsUwp();
void RunAsUwp();
Boolean IsElevated();
Int32 SetStartupCommandline(String[] commands);
Int32 ExecuteCommandline(String[] commands, String cwd);
String ParseCommandlineMessage { get; };
Boolean ShouldExitEarly { get; };
void LoadSettings();
Windows.UI.Xaml.UIElement GetRoot();
String Title { get; };
Boolean FocusMode { get; };
Boolean Fullscreen { get; };
Boolean AlwaysOnTop { get; };
void IdentifyWindow();
String WindowName;
UInt64 WindowId;
void RenameFailed();
Boolean IsQuakeWindow();
Windows.Foundation.Size GetLaunchDimensions(UInt32 dpi);
Boolean CenterOnLaunch { get; };
InitialPosition GetInitialPosition(Int64 defaultInitialX, Int64 defaultInitialY);
Windows.UI.Xaml.ElementTheme GetRequestedTheme();
Microsoft.Terminal.Settings.Model.LaunchMode GetLaunchMode();
Boolean GetShowTabsInTitlebar();
Boolean GetInitialAlwaysOnTop();
Single CalcSnappedDimension(Boolean widthOrHeight, Single dimension);
void TitlebarClicked();
void WindowCloseButtonClicked();
UInt64 GetLastActiveControlTaskbarState();
UInt64 GetLastActiveControlTaskbarProgress();
FindTargetWindowResult FindTargetWindow(String[] args);
Windows.Foundation.Collections.IMapView<Microsoft.Terminal.Control.KeyChord, Microsoft.Terminal.Settings.Model.Command> GlobalHotkeys();
// See IDialogPresenter and TerminalPage's DialogPresenter for more
// information.
Windows.Foundation.IAsyncOperation<Windows.UI.Xaml.Controls.ContentDialogResult> ShowDialog(Windows.UI.Xaml.Controls.ContentDialog dialog);
event Windows.Foundation.TypedEventHandler<Object, Windows.UI.Xaml.UIElement> SetTitleBarContent;
event Windows.Foundation.TypedEventHandler<Object, String> TitleChanged;
event Windows.Foundation.TypedEventHandler<Object, LastTabClosedEventArgs> LastTabClosed;
event Windows.Foundation.TypedEventHandler<Object, Windows.UI.Xaml.ElementTheme> RequestedThemeChanged;
event Windows.Foundation.TypedEventHandler<Object, Object> FocusModeChanged;
event Windows.Foundation.TypedEventHandler<Object, Object> FullscreenChanged;
event Windows.Foundation.TypedEventHandler<Object, Object> AlwaysOnTopChanged;
event Windows.Foundation.TypedEventHandler<Object, Object> RaiseVisualBell;
event Windows.Foundation.TypedEventHandler<Object, Object> SetTaskbarProgress;
event Windows.Foundation.TypedEventHandler<Object, Object> IdentifyWindowsRequested;
event Windows.Foundation.TypedEventHandler<Object, RenameWindowRequestedArgs> RenameWindowRequested;
event Windows.Foundation.TypedEventHandler<Object, Object> SettingsChanged;
event Windows.Foundation.TypedEventHandler<Object, Object> IsQuakeWindowChanged;
}
}