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WME True Segment Length

Displays geodesic segment length in feet & meters

As of 06/12/2016. See the latest version.

// ==UserScript==
// @name         WME True Segment Length
// @namespace    https://greasyfork.org/users/30701-justins83-waze
// @version      0.3
// @description  Displays geodesic segment length in feet & meters
// @author       JustinS83
// @include      https://www.waze.com/editor/*
// @include      https://www.waze.com/*/editor/*
// @include      https://beta.waze.com/*
// @exclude      https://www.waze.com/user/editor*
// @grant        none
// @require      https://greasyfork.org/scripts/24851-wazewrap/code/WazeWrap.js
// @license      GPLv3
// ==/UserScript==

(function() {

    function bootstrap(tries) {
        tries = tries || 1;

        if (window.W &&
            window.W.map &&
            window.W.model &&
            $) {
            init();
        } else if (tries < 1000) {
            setTimeout(function () {bootstrap(tries++);}, 200);
        }
    }

    bootstrap();

    function init(){
        window.Waze.selectionManager.events.register("selectionchanged", null, updateDisplay);
        W.model.actionManager.events.register("afteraction",null, updateDisplay);
        W.model.actionManager.events.register("afterundoaction",null, updateDisplay);
        W.model.actionManager.events.register("afterclearactions",null, updateDisplay);
        W.model.actionManager.events.register("noActions",null, noActions);
    }

    function noActions(){
        setTimeout( updateDisplay, 100 ); //have to put in a delay for when the user uses undo to clear all actions - WME updates on top of my changes otherwise.
    }

    function updateDisplay(){
        var count = W.selectionManager.selectedItems.length;
        var metersLength = 0;
        var bold = false;
        if(count > 0){
            for(i=0;i<count;i++){
                if(W.selectionManager.selectedItems[i].model.type === "segment"){
                    metersLength += WazeWrap.Geometry.calculateDistance(W.selectionManager.selectedItems[i].geometry.components);
                    if(!W.selectionManager.selectedItems[0].model.isUnchanged())
                        bold = true;
                }
            }
            if(metersLength >0){
                var ftLength = Math.round(metersLength * 3.28084 *100)/100;
                $('#segment-edit-general > ul > li:nth-child(1) > span')[1].innerHTML = ftLength + " ft";
                $('#segment-edit-general > ul > li:nth-child(1)').append('<br/><span class="name">Length: </span><span class="value">' + (Math.round(metersLength*100)/100) +' m</span>');
                if(bold){
                    $('#segment-edit-general > ul > li:nth-child(1) > span').css('font-weight', "bold");
                    $('#segment-edit-general > ul > li:nth-child(2) > span').css('font-weight', "bold");
                }
            }
        }
    }

})();