@launchmenu/core
Version:
An environment for visual keyboard controlled applets
65 lines • 6.18 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getEditTargetTextField = exports.performNormalizedTextEdit = void 0;
const CompoundTextEditCommand_1 = require("./commands/CompoundTextEditCommand");
const TextAlterationTools_1 = require("./commands/TextAlterationTools");
const TextEditCommand_1 = require("./commands/TextEditCommand");
/**
* Performs a text edit using a normalized callback, either passing a command or performing the alteration immediately
* @param target The target of the text change
* @param edit The callback to perform the text change
*/
function performNormalizedTextEdit(target, edit) {
const textField = "textField" in target ? target.textField : target;
// Use the callback to retrieve the changes
const result = edit(textField, "textField" in target);
// Retrieve the potential result command, or result alterations
const resultCommand = "getAlterations" in result ? result : undefined;
const resultAlterations = "alterations" in result
? {
...result,
alternations: result.alterations.sort(({ start: a }, { start: b }) => a - b),
}
: undefined;
if (resultAlterations === null || resultAlterations === void 0 ? void 0 : resultAlterations.alterations.some((item, i, all) => { var _a; return item.end > ((_a = all[i + 1]) === null || _a === void 0 ? void 0 : _a.start); }))
throw Error("Alterations may not overlap each other, use a compound command instead");
// Check the result and perform the necessary action
if ("textField" in target) {
// If a command was returned, simply return the command
if (resultCommand)
target.onChange(resultCommand);
// If alterations were returned, turn it into a command
else if (resultAlterations) {
const { alterations, selection } = resultAlterations;
const commands = alterations.map(alteration => new TextEditCommand_1.TextEditCommand(textField, alteration, selection));
if (commands.length == 1)
target.onChange(commands[0]);
else if (commands.length > 1) {
const command = new CompoundTextEditCommand_1.CompoundTextEditCommand(commands);
target.onChange(command);
}
}
}
else {
// If a command was returned, simply execute the command
if (resultCommand)
resultCommand.execute();
// If alterations were returned, combine them into the new text
else if (resultAlterations) {
const { alterations, selection } = resultAlterations;
const newText = TextAlterationTools_1.TextAlterationTools.performAlterations(textField.get(), alterations);
target.set(newText);
if (selection)
target.setSelection(selection);
}
}
}
exports.performNormalizedTextEdit = performNormalizedTextEdit;
/**
* Retrieves the text field given a text edit target
* @param targetField The text edit target
* @returns The text field
*/
const getEditTargetTextField = (targetField) => "textField" in targetField ? targetField.textField : targetField;
exports.getEditTargetTextField = getEditTargetTextField;
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