control-freak-ide/misc/pocs/GoJS/extensionsTS/HyperlinkText.js

(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define(["require", "exports", "../release/go"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    /*
    *  Copyright (C) 1998-2017 by Northwoods Software Corporation. All Rights Reserved.
    */
    var go = require("../release/go");
    // A "HyperlinkText" is either a TextBlock or a Panel containing a TextBlock that when clicked
    // opens a new browser window with a given or computed URL.
    // When the user's mouse passes over a "HyperlinkText", the text is underlined.
    // When the mouse hovers over a "HyperlinkText", it shows a tooltip that displays the URL.
    // This "HyperlinkText" builder is not pre-defined in the GoJS library, so you will need to load this definition.
    // Typical usages:
    //    $("HyperlinkText", "https://gojs.net", "Visit GoJS")
    //
    //    $("HyperlinkText",
    //        function(node) { return "https://gojs.net/" + node.data.version; },
    //        function(node) { return "Visit GoJS version " + node.data.version; })
    //
    //    $("HyperlinkText",
    //        function(node) { return "https://gojs.net/" + node.data.version; },
    //        $(go.Panel, "Auto",
    //            $(go.Shape, ...),
    //            $(go.TextBlock, ...)
    //        )
    //    )
    // The first argument to the "HyperlinkText" builder should be either the URL string or a function
    // that takes the data-bound Panel and returns the URL string.
    // The second argument to the "HyperlinkText" builder may be either a string to display in a TextBlock,
    // or a function that takes the data-bound Panel and returns the string to display in a TextBlock.
    // If no text string or function is provided, it assumes all of the arguments are used to
    // define the visual tree for the "HyperlinkText", in the normal fashion for a Panel.
    // The result is either a TextBlock or a Panel.
    go.GraphObject.defineBuilder("HyperlinkText", function (args) {
        // the URL is required as the first argument, either a string or a side-effect-free function returning a string
        var url = go.GraphObject.takeBuilderArgument(args, undefined, function (x) { return typeof x === "string" || typeof x === "function"; });
        // the text for the HyperlinkText is the optional second argument, either a string or a side-effect-free function returning a string
        var text = go.GraphObject.takeBuilderArgument(args, null, function (x) { return typeof x === "string" || typeof x === "function"; });
        // see if the visual tree is supplied in the arguments to the "HyperlinkText"
        var anyGraphObjects = false;
        for (var i = 0; i < args.length; i++) {
            var a = args[i];
            if (a && a instanceof go.GraphObject)
                anyGraphObjects = true;
        }
        // define the click behavior
        var click = function (e, obj) {
            var url = obj["_url"];
            if (typeof url === "function")
                url = url(obj.findTemplateBinder());
            window.open(url, "_blank");
        };
        // define the tooltip
        var tooltip = go.GraphObject.make(go.Adornment, "Auto", go.GraphObject.make(go.Shape, { fill: "#EFEFCC" }), go.GraphObject.make(go.TextBlock, { margin: 4 }, new go.Binding("text", "", function (obj) {
            // here OBJ will be in the Adornment, need to get the HyperlinkText/TextBlock
            obj = obj.part.adornedObject;
            var url = obj._url;
            if (typeof url === "function")
                url = url(obj.findTemplateBinder());
            return url;
        }).ofObject()));
        // if the text is provided, use a new TextBlock; otherwise assume the TextBlock is provided
        if (typeof (text) === "string" || typeof (text) === "function" || !anyGraphObjects) {
            if (text === null && typeof (url) === "string")
                text = url;
            var tb = go.GraphObject.make(go.TextBlock, {
                "_url": url,
                cursor: "pointer",
                mouseEnter: function (e, obj) { obj.isUnderline = true; },
                mouseLeave: function (e, obj) { obj.isUnderline = false; },
                click: click,
                toolTip: tooltip // shared by all HyperlinkText textblocks
            });
            if (typeof (text) === "string") {
                tb.text = text;
            }
            else if (typeof (text) === "function") {
                tb.bind(new go.Binding("text", "", text).ofObject());
            }
            else if (typeof (url) === "function") {
                tb.bind(new go.Binding("text", "", url).ofObject());
            }
            return tb;
        }
        else {
            findTextBlock(args);
            return go.GraphObject.make(go.Panel, {
                "_url": url,
                cursor: "pointer",
                mouseEnter: function (e, panel) {
                    var tb = findTextBlock(panel);
                    if (tb !== null)
                        tb.isUnderline = true;
                },
                mouseLeave: function (e, panel) {
                    var tb = findTextBlock(panel);
                    if (tb !== null)
                        tb.isUnderline = false;
                },
                click: click,
                toolTip: tooltip // shared by all HyperlinkText panels
            });
        }
    });
    function findTextBlock(obj) {
        if (obj instanceof go.TextBlock)
            return obj;
        if (obj instanceof go.Panel) {
            var it = obj.elements;
            while (it.next()) {
                var result = findTextBlock(it.value);
                if (result !== null)
                    return result;
            }
        }
        return null;
    }
});