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import { UndoManager } from "../util/UndoManager";
import { SelectionManager } from "../util/SelectionManager";
import { CollectionDockingView } from "./collections/CollectionDockingView";
import { MainView } from "./MainView";
import { DragManager } from "../util/DragManager";
import { action } from "mobx";
const modifiers = ["Control", "Meta", "Shift", "Alt"];
type KeyHandler = (keycode: string) => KeyControlInfo;
type KeyControlInfo = {
preventDefault: boolean,
stopPropagation: boolean
};
export default class KeyManager {
public static Handler: KeyManager;
private mainView: MainView;
private router = new Map<string, KeyHandler>();
constructor(mainView: MainView) {
this.mainView = mainView;
this.router.set("0000", this.unmodified);
this.router.set("0100", this.ctrl);
this.router.set("0010", this.alt);
this.router.set("1100", this.ctrl_shift);
}
public handle = (e: KeyboardEvent) => {
let keyname = e.key.toLowerCase();
this.handleGreedy(keyname);
if (modifiers.includes(keyname)) {
return;
}
let bit = (value: boolean) => value ? "1" : "0";
let modifierIndex = bit(e.shiftKey) + bit(e.ctrlKey) + bit(e.altKey) + bit(e.metaKey);
let handleConstrained = this.router.get(modifierIndex);
if (!handleConstrained) {
return;
}
let control = handleConstrained(keyname);
control.stopPropagation && e.stopPropagation();
control.preventDefault && e.preventDefault();
}
private handleGreedy = action((keyname: string) => {
switch (keyname) {
}
});
private unmodified = action((keyname: string) => {
switch (keyname) {
case "escape":
if (CollectionDockingView.Instance.HasFullScreen()) {
CollectionDockingView.Instance.CloseFullScreen();
} else {
SelectionManager.DeselectAll();
}
DragManager.AbortDrag();
break;
}
return {
stopPropagation: false,
preventDefault: false
};
});
private alt = action((keyname: string) => {
let stopPropagation = true;
let preventDefault = true;
switch (keyname) {
case "n":
let toggle = this.mainView.addMenuToggle.current!;
toggle.checked = !toggle.checked;
break;
}
return {
stopPropagation: stopPropagation,
preventDefault: preventDefault
};
});
private ctrl = action((keyname: string) => {
let stopPropagation = true;
let preventDefault = true;
switch (keyname) {
case "arrowright":
this.mainView.mainFreeform && CollectionDockingView.Instance.AddRightSplit(this.mainView.mainFreeform, undefined);
break;
case "arrowleft":
this.mainView.mainFreeform && CollectionDockingView.Instance.CloseRightSplit(this.mainView.mainFreeform);
break;
case "f":
this.mainView.isSearchVisible = !this.mainView.isSearchVisible;
break;
case "o":
let target = SelectionManager.SelectedDocuments()[0];
target && target.fullScreenClicked();
break;
case "r":
preventDefault = false;
break;
case "y":
UndoManager.Redo();
break;
case "z":
UndoManager.Undo();
break;
}
return {
stopPropagation: stopPropagation,
preventDefault: preventDefault
};
});
private ctrl_shift = action((keyname: string) => {
let stopPropagation = true;
let preventDefault = true;
switch (keyname) {
case "z":
UndoManager.Redo();
break;
}
return {
stopPropagation: stopPropagation,
preventDefault: preventDefault
};
});
}
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