svgui/livesvg.js
author Edouard Tisserant <edouard.tisserant@gmail.com>
Sun, 14 Feb 2021 05:22:30 +0100
branchsvghmi
changeset 3139 1f5ca646ce6e
parent 728 e0424e96e3fd
permissions -rw-r--r--
SVGHMI: Add inhibition to widget's apply_hmi_value() so that it does not change variable more frquently than given widget's frequency. This prevents flooding network with many update if browser is producing events at high rate, as for exemple when dragging ScrollBar's cursor.
// import Nevow.Athena
// import Divmod.Base

function updateAttr(id, param, value) {
  Nevow.Athena.Widget.fromAthenaID(1).callRemote('HMIexec', 'setattr', id, param, value);
}

var svguiWidgets = new Array();

var currentObject = null;
function setCurrentObject(obj) {
	currentObject = obj;
}
function isCurrentObject(obj) {
	return currentObject == obj;
}

function getSVGElementById(id) {
	return document.getElementById(id);
}

function blockSVGElementDrag(element) {
	element.addEventListener("draggesture", function(event){event.stopPropagation()}, true);
}

LiveSVGPage.LiveSVGWidget = Nevow.Athena.Widget.subclass('LiveSVGPage.LiveSVGWidget');
LiveSVGPage.LiveSVGWidget.methods(

    function handleEvent(self, evt) {
        if (currentObject != null) {
            currentObject.handleEvent(evt);
        }
    },

    function receiveData(self, data){
        dataReceived = json_parse(data);
        gadget = svguiWidgets[dataReceived.id]
        if (gadget) {
        	gadget.updateValues(json_parse(dataReceived.kwargs));
        }
        //console.log("OBJET : " + dataReceived.back_id + " STATE : " + newState);
    },
    
    function init(self, arg1){
        //console.log("Object received : " + arg1);
        for (ind in arg1) {
            gad = json_parse(arg1[ind]);
            args = json_parse(gad.kwargs);
            gadget = new svguilib[gad.__class__](self, gad.id, args);
            svguiWidgets[gadget.id]=gadget;
            //console.log('GADGET :' + gadget);
        }
        var elements = document.getElementsByTagName("svg");
        for (var i = 0; i < elements.length; i++) {
        	elements[i].addEventListener("mouseup", self, false);
        }
        //console.log("SVGUIWIDGETS : " + svguiWidgets);
    }
);