@valtown/codemirror-codeium/dist/commands.js

codemirror integration for codeium

import { Transaction, EditorSelection } from "@codemirror/state";
import { copilotEvent } from "./annotations.js";
import { completionDecoration } from "./completionDecoration.js";
import { acceptSuggestion, clearSuggestion } from "./effects.js";
export function acceptSuggestionCommand(view) {
    // We delete the ghost text and insert the suggestion.
    // We also set the cursor to the end of the suggestion.
    const stateField = view.state.field(completionDecoration);
    const ghostTexts = stateField.ghostTexts;
    if (!ghostTexts) {
        return false;
    }
    const reverseReverseChangeSet = stateField.reverseChangeSet?.invert(view.state.doc);
    // This is removing the previous ghost text. Don't
    // add this to history.
    view.dispatch({
        changes: stateField.reverseChangeSet,
        effects: acceptSuggestion.of(null),
        annotations: [copilotEvent.of(null), Transaction.addToHistory.of(false)],
    });
    let lastIndex = 0;
    reverseReverseChangeSet?.iterChangedRanges((_fromA, _toA, _fromB, toB) => {
        lastIndex = toB;
    });
    view.dispatch({
        changes: reverseReverseChangeSet,
        selection: EditorSelection.cursor(lastIndex),
        annotations: [copilotEvent.of(null), Transaction.addToHistory.of(true)],
    });
    return true;
}
export function rejectSuggestionCommand(view) {
    // We delete the suggestion, then carry through with the original keypress
    const stateField = view.state.field(completionDecoration);
    const ghostTexts = stateField.ghostTexts;
    if (!ghostTexts?.length) {
        return false;
    }
    view.dispatch({
        changes: stateField.reverseChangeSet,
        effects: clearSuggestion.of(null),
        annotations: [copilotEvent.of(null), Transaction.addToHistory.of(false)],
    });
    return false;
}
// TODO: this isn't full reimplemented yet.
export function sameKeyCommand(view, key) {
    // When we type a key that is the same as the first letter of the suggestion, we delete the first letter of the suggestion and carry through with the original keypress
    const ghostTexts = view.state.field(completionDecoration).ghostTexts;
    if (!ghostTexts || !ghostTexts.length) {
        return false;
    }
    if (key === "Tab") {
        return acceptSuggestionCommand(view);
    }
    else {
        return rejectSuggestionCommand(view);
    }
}
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