@joshuafcole/fluorine/stasis.js

A highly reactive, optionally compiled, and strongly typed view layer for TypeScript.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
function shallow_copy(x) {
    if (x instanceof Array)
        return [...x];
    else if (typeof x === "object")
        return Object.assign({}, x);
    else
        return x;
}
function stasis(state, on_change) {
    let current_tx;
    let log = [];
    // let observer = (changes: ObservableSlim.Change<T>[]) => {
    //   current_tx.changes.push(
    //     ...changes.map(change => ({
    //       ...change,
    //       previousValue: shallow_copy(change.previousValue)
    //     }))
    //   );
    // };
    // let proxy = ObservableSlim.create(state, false, observer);
    let mutate = function (mutator, no_log = false) {
        current_tx = { source: mutator.name, changes: [] };
        mutator(state); // proxy
        if (!no_log)
            log.push(current_tx);
        if (on_change)
            on_change(current_tx);
    };
    mutate.objs = function (objs, mutator, no_log = false) {
        current_tx = { source: mutator.name, changes: [] };
        let proxies = objs.map(obj => 
        // ObservableSlim.create(obj, false, observer)
        obj);
        mutator(...proxies);
        if (!no_log)
            log.push(current_tx);
        if (on_change)
            on_change(current_tx);
    };
    return {
        state: state,
        log,
        mutate
    };
}
exports.stasis = stasis;
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