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correct some js errors in example
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andreas committed Nov 14, 2024
1 parent 538f643 commit c292b82
Showing 1 changed file with 83 additions and 90 deletions.
173 changes: 83 additions & 90 deletions lib/exampletask/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -5,104 +5,97 @@
//on our case this is "testboard"
//so we only start any action when we receive the init event
//and we successfully checked that our requested capability is there
let isActive=false;
const tabName="example";
const configName="exampleBDSel";
const infoUrl='https://github.com/wellenvogel/esp32-nmea2000/tree/master/lib/exampletask';
let boatItemName;
let boatItemElement;
api.registerListener((id,data)=>{
if (isActive){
console.log("exampletask status listener",data);
}
},api.EVENTS.status)
api.registerListener((id,data)=>{
if (id === api.EVENTS.init){
//data is capabilities
//check if our requested capability is there (see GwExampleTask.h)
if (data.testboard) isActive=true;
if (isActive){
//add a simple additional tab page
//you will have to build the content of the page dynamically
//using normal dom manipulation methods
//you can use the helper addEl to create elements
let page=api.addTabPage(tabName,"Example");
api.addEl('div','hdg',page,"this is a test tab");
let vrow=api.addEl('div','row',page);
api.addEl('span','label',vrow,'loops: ');
let lcount=api.addEl('span','value',vrow,'0');
//query the loop count
window.setInterval(()=>{
fetch('/api/user/exampleTask/data')
.then((res)=>{
if (! res.ok) throw Error("server error: "+res.status);
return res.text();
})
.then((txt)=>{
lcount.textContent=txt;
})
.catch((e)=>console.log("rq:",e));
},1000);
api.addEl('button','',page,'Info').addEventListener('click',function(ev){
window.open(infoUrl,'info');
api.registerListener((id, data) => {
//data is capabilities
//check if our requested capability is there (see GwExampleTask.h)
if (!data.testboard) return; //do nothing if we are not active
//add a simple additional tab page
//you will have to build the content of the page dynamically
//using normal dom manipulation methods
//you can use the helper addEl to create elements
let page = api.addTabPage(tabName, "Example");
api.addEl('div', 'hdg', page, "this is a test tab");
let vrow = api.addEl('div', 'row', page);
api.addEl('span', 'label', vrow, 'loops: ');
let lcount = api.addEl('span', 'value', vrow, '0');
//query the loop count
window.setInterval(() => {
fetch('/api/user/exampleTask/data')
.then((res) => {
if (!res.ok) throw Error("server error: " + res.status);
return res.text();
})
//add a tab for an external URL
api.addTabPage('exhelp','Info',infoUrl);
.then((txt) => {
//set the text content of our value element with what we received
lcount.textContent = txt;
})
.catch((e) => console.log("rq:", e));
}, 1000);
api.addEl('button', '', page, 'Info').addEventListener('click', function (ev) {
window.open(infoUrl, 'info');
})
//add a tab for an external URL
api.addTabPage('exhelp', 'Info', infoUrl);
//now as we know we are active - register all the listeners we need
api.registerListener((id, data) => {
console.log("exampletask status listener", data);
}, api.EVENTS.status)
api.registerListener((id, data) => {
if (data === tabName) {
//maybe we need some activity when our page is being activated
console.log("example tab activated");
}
}
if (isActive){
//console.log("exampletask listener",id,data);
if (id === api.EVENTS.tab){
if (data === tabName){
//maybe we need some activity when our page is being activated
console.log("example tab activated");
}
}, api.EVENTS.tab);

api.registerListener((id, data) => {
//we have a configuration that
//gives us the name of a boat data item we would like to
//handle special
//in our case we just use an own formatter and add some
//css to the display field
//as this item can change we need to keep track of the
//last item we handled
let nextboatItemName = data[configName];
console.log("value of " + configName, nextboatItemName);
if (nextboatItemName) {
//register a user formatter that will be called whenever
//there is a new valid value
//we simply add an "X:" in front
api.addUserFormatter(nextboatItemName, "m(x)", function (v, valid) {
if (!valid) return;
return "X:" + v;
})
//after this call the item will be recreated
}
if (id == api.EVENTS.config){
//we have a configuration that
//gives us the name of a boat data item we would like to
//handle special
//in our case we just use an own formatter and add some
//css to the display field
//as this item can change we need to keep track of the
//last item we handled
let nextboatItemName=data[configName];
console.log("value of "+configName,nextboatItemName);
if (nextboatItemName){
//register a user formatter that will be called whenever
//there is a new valid value
//we simply add an "X:" in front
api.addUserFormatter(nextboatItemName,"m(x)",function(v,valid){
if (!valid) return;
return "X:"+v;
})
//after this call the item will be recreated
}
if (boatItemName !== undefined && boatItemName != nextboatItemName){
//if the boat item that we handle has changed, remove
//the previous user formatter (this will recreate the item)
api.removeUserFormatter(boatItemName);
}
boatItemName=nextboatItemName;
boatItemElement=undefined;
if (boatItemName !== undefined && boatItemName != nextboatItemName) {
//if the boat item that we handle has changed, remove
//the previous user formatter (this will recreate the item)
api.removeUserFormatter(boatItemName);
}
if (id == api.EVENTS.dataItemCreated){
//this event is called whenever a data item has
//been created (or recreated)
//if this is the item we handle, we just add a css class
//we could also completely rebuild the dom below the element
//and use our formatter to directly write/draw the data
//avoid direct manipulation of the element (i.e. changing the classlist)
//as this element remains there all the time
if (boatItemName && boatItemName == data.name){
boatItemElement=data.element;
//use the helper forEl to find elements within the dashboard item
//the value element has the class "dashValue"
api.forEl(".dashValue",function(el){
el.classList.add("examplecss");
},boatItemElement);
}
boatItemName = nextboatItemName;
boatItemElement = undefined;
}, api.EVENTS.config);
api.registerListener((id, data) => {
//this event is called whenever a data item has
//been created (or recreated)
//if this is the item we handle, we just add a css class
//we could also completely rebuild the dom below the element
//and use our formatter to directly write/draw the data
//avoid direct manipulation of the element (i.e. changing the classlist)
//as this element remains there all the time
if (boatItemName && boatItemName == data.name) {
boatItemElement = data.element;
//use the helper forEl to find elements within the dashboard item
//the value element has the class "dashValue"
api.forEl(".dashValue", function (el) {
el.classList.add("examplecss");
}, boatItemElement);
}
}
})
}, api.EVENTS.dataItemCreated);
}, api.EVENTS.init);
})();

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