CocoRoboDesktop/jsmind/features/jsmind.shell.js

/*
 * Released under BSD License
 * Copyright (c) 2014-2021 hizzgdev@163.com
 * 
 * Project Home:
 *   https://github.com/hizzgdev/jsmind/
 */

(function ($w) {
    'use strict';
    var $d = $w.document;
    var __name__ = 'jsMind';
    var jsMind = $w[__name__];
    if (!jsMind) { return; }
    if (typeof (jsMind.shell) != 'undefined') { return; }

    var options = {
        play_delay: 1000
    };

    jsMind.shell = function (jm) {
        this.jm = jm;
        this.step = 0;
        this.commands = []; //version
        this.delay_handle = 0;
        this.playing = false;
        this.jm_editable = this.jm.get_editable();
    };

    jsMind.shell.prototype = {
        init: function () {
            this.playing = false;
        },
        record: function (action, obj) {
            if (!this.playing) {
                var command = { action: action, data: obj.data, node: obj.node };
                var prev_command = this.commands[this.step - 1];
                if (command.action === 'update_node' && prev_command.action === 'add_node' && prev_command.data[2] === 'New Node') {
                    prev_command.data[2] = command.data[1];
                    this.commands[this.step - 1] = prev_command;
                } else {
                    this.step = this.commands.push(command);
                }
            }
        },
        execute: function (command) {
            var func = this.jm[command.action];
            var node = command.node;
            this.jm.enable_edit();
            func.apply(this.jm, command.data);
            this.jm.disable_edit();
            if (!!node) {
                this.jm.select_node(node);
            }
        },
        add_command: function (command) {
            this.commands.push(command);
            play();
        },
        replay: function () {
            this.step = 0;
            this.play();
        },
        play: function () {
            this.jm.disable_edit();
            this.playing = true;
            this._play_stepbystep();
        },
        _play_stepbystep: function () {
            if (this.delay_handle != 0) {
                $w.clearTimeout(this.delay_handle);
                this.delay_handle = 0;
            }
            if (this.step < this.commands.length) {
                this.execute(this.commands[this.step]);
                this.step++;
                var js = this;
                this.delay_handle = $w.setTimeout(function () {
                    js.play.call(js);
                }, options.play_delay);
            } else {
                this._play_end();
            }
        },
        _play_end: function () {
            this.playing = false;
            if (this.jm_editable) {
                this.jm.enable_edit();
            } else {
                this.jm.disable_edit();
            }
        },

        jm_event_handle: function (type, data) {
            if (type === jsMind.event_type.show) {
                this.record('show', data);
            }
            if (type === jsMind.event_type.edit) {
                var action = data.evt;
                delete data.evt;
                this.record(action, data);
            }
        }
    };

    var shell_plugin = new jsMind.plugin('shell', function (jm) {
        var js = new jsMind.shell(jm);
        jm.shell = js;
        js.init();
        jm.add_event_listener(function (type, data) {
            js.jm_event_handle.call(js, type, data);
        });
    });

    jsMind.register_plugin(shell_plugin);
})(window);