jupyterlab-emrys/lib/markdownwidget/widget.js

A computational environment for Jupyter. Powered by Emrys

// Copyright (c) Jupyter Development Team.
// Distributed under the terms of the Modified BSD License.
"use strict";
var __extends = (this && this.__extends) || function (d, b) {
    for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
    function __() { this.constructor = d; }
    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var phosphor_panel_1 = require('phosphor-panel');
var phosphor_widget_1 = require('phosphor-widget');
var docregistry_1 = require('../docregistry');
/**
 * The class name added to a Jupyter MarkdownWidget
 */
var MD_CLASS = 'jp-MarkdownWidget';
/**
 * A widget for rendered markdown.
 */
var MarkdownWidget = (function (_super) {
    __extends(MarkdownWidget, _super);
    /**
     * Construct a new markdown widget.
     */
    function MarkdownWidget(context, rendermime) {
        var _this = this;
        _super.call(this);
        this._rendermime = null;
        this._context = null;
        this.addClass(MD_CLASS);
        this.layout = new phosphor_panel_1.PanelLayout();
        this.title.text = context.path.split('/').pop();
        this._rendermime = rendermime;
        rendermime.resolver = context;
        this._context = context;
        context.pathChanged.connect(function (c, path) {
            _this.title.text = path.split('/').pop();
        });
        context.model.contentChanged.connect(function () {
            _this.update();
        });
    }
    /**
     * Handle an `after-attach` message to the widget.
     */
    MarkdownWidget.prototype.onAfterAttach = function (msg) {
        this.update();
    };
    /**
     * Handle an `update-request` message to the widget.
     */
    MarkdownWidget.prototype.onUpdateRequest = function (msg) {
        var context = this._context;
        var model = context.model;
        var layout = this.layout;
        var widget = this._rendermime.render({
            'text/markdown': model.toString(),
        });
        if (layout.childCount()) {
            layout.childAt(0).dispose();
        }
        layout.addChild(widget);
    };
    return MarkdownWidget;
}(phosphor_widget_1.Widget));
exports.MarkdownWidget = MarkdownWidget;
/**
 * A widget factory for Markdown.
 */
var MarkdownWidgetFactory = (function (_super) {
    __extends(MarkdownWidgetFactory, _super);
    /**
     * Construct a new markdown widget factory.
     */
    function MarkdownWidgetFactory(rendermime) {
        _super.call(this);
        this._rendermime = null;
        this._rendermime = rendermime;
    }
    /**
     * Create a new widget given a context.
     */
    MarkdownWidgetFactory.prototype.createNew = function (context, kernel) {
        var widget = new MarkdownWidget(context, this._rendermime.clone());
        this.widgetCreated.emit(widget);
        return widget;
    };
    return MarkdownWidgetFactory;
}(docregistry_1.ABCWidgetFactory));
exports.MarkdownWidgetFactory = MarkdownWidgetFactory;