Experimenting with Adobe extension for After Effects, I'm using JSX to interface with the software and send information to a JS file, which updates the HTML UI panel.
At this point, I'm just trying to console.log some information coming back from the software (composition and layer names).
My problem is that what is supposed to be an array of strings, which I can play with on the JSX side, is received as a string once returned in my JS sheet.
Here is the flow:
main.js
(function() {
'use strict';
var csInterface = new CSInterface();
function init() {
themeManager.init();
$("#btn_test").click(function() {
csInterface.evalScript('main()', function(res) {
console.log(typeof(res));
console.log(res);
});
});
}
init();
}());
hostscript.jsx
function main() {
var project = app.project;
var comp = project.activeItem;
var layers = comp.selectedLayers;
var layersNames = [];
for (var i = 0; i < layers.length; i++) {
layersNames.push(layers[i].name);
}
return layersNames;
}
So in my console I receive both information:
typeof is string
logging res is name1,name2
Any ideas? I can't find a targeted answer on Stack Overflow or on any other Adobe-related forums.
Related
I am using prosemirror to build a collaborative editor, where multiple people can edit one document. I wrote the following code, based on the example given here - http://prosemirror.net/docs/guides/collab/
Here is the code-
const { EditorState } = require('prosemirror-state');
const { EditorView } = require('prosemirror-view');
const { DOMParser } = require("prosemirror-model");
const {schema} = require("./schema");
var collab = require("prosemirror-collab");
function Authority(doc) {
this.doc = doc
this.steps = []
this.stepClientIDs = []
this.onNewSteps = []
}
Authority.prototype.receiveSteps = function(version, steps, clientID) {
if (version != this.steps.length) return
var self = this
// Apply and accumulate new steps
steps.forEach(function(step) {
self.doc = step.apply(self.doc).doc
self.steps.push(step)
self.stepClientIDs.push(clientID)
})
// Signal listeners
this.onNewSteps.forEach(function(f) { f() })
}
Authority.prototype.stepsSince = function(version) {
return {
steps: this.steps.slice(version),
clientIDs: this.stepClientIDs.slice(version)
}
}
var auth = new Authority('');
collabEditor(auth)
function collabEditor(authority) {
var view = new EditorView(document.querySelector("#editor"), {
state: EditorState.create({schema: schema, plugins: [collab.collab()]}),
dispatchTransaction: function(transaction) {
var newState = view.state.apply(transaction)
view.updateState(newState)
var sendable = collab.sendableSteps(newState)
if (sendable)
authority.receiveSteps(sendable.version, sendable.steps,
sendable.clientID)
}
})
authority.onNewSteps.push(function() {
var newData = authority.stepsSince(collab.getVersion(view.state))
view.dispatch(
collab.receiveTransaction(view.state, newData.steps, newData.clientIDs))
})
return view
}
When i run this code (after installing all the dependencies and setting up a simple server in nodejs) I am basically able to edit a text box but I am not able to open two tabs in chrome and see the collaboration happen. What am i doing wrong?
Will love some feedback.
This is the example code for a simple, single-page, no-external-communication setup. As such, no, it won't communicate to other tabs. For that, you'd have to move the authority somewhere else and set up pages to actually communicate with it over HTTP or websockets. (See for example this demo.)
I just downloaded and installed phantom-crawler for nodejs. I copy and pasted the following script into a file called crawler.js:
var Crawler = require('phantom-crawler');
// Can be initialized with optional options object
var crawler = new Crawler();
// queue is an array of URLs to be crawled
crawler.queue.push('https://google.com/');
// Can also do `crawler.fetch(url)` instead of pushing it and crawling it
// Extract plainText out of each phantomjs page
Promise.all(crawler.crawl())
.then(function(pages) {
var texts = [];
for (var i = 0; i < pages.length; i++) {
var page = pages[i];
// suffix Promise to return promises instead of callbacks
var text = page.getPromise('plainText');
texts.push(text);
text.then(function(p) {
return function() {
// Pages are like tabs, they should be closed
p.close()
}
}(page));
}
return Promise.all(texts);
})
.then(function(texts) {
// texts = array of plaintext from the website bodies
// also supports ajax requests
console.log(texts);
})
.then(function () {
// kill that phantomjs bridge
crawler.phantom.then(function (p) {
p.exit();
});
})
I'd like to print the complete html source (in this case from the google page) to the console.
I searched a lot, but I haven't found anything similar, so how do I do this?
get the content instead of the plainText promise.
The module phantom-crawler uses the module node-phantom-simple, which uses phantomjs.
You can find the list of properties you can call in the phantomjs wiki.
var Crawler = require('phantom-crawler');
// Can be initialized with optional options object
var crawler = new Crawler();
// queue is an array of URLs to be crawled
crawler.queue.push('https://google.com/');
// Can also do `crawler.fetch(url)` instead of pushing it and crawling it
// Extract plainText out of each phantomjs page
Promise.all(crawler.crawl())
.then(function(pages) {
var allHtml = [];
for (var i = 0; i < pages.length; i++) {
var page = pages[i];
// suffix Promise to return promises instead of callbacks
var html = page.getPromise('content');
allHtml.push(html);
html.then(function(p) {
return function() {
// Pages are like tabs, they should be closed
p.close()
}
}(page));
}
return Promise.all(allHtml);
})
.then(function(allHtml) {
// allHtml = array of plaintext from the website bodies
// also supports ajax requests
console.log(allHtml);
})
.then(function () {
// kill that phantomjs bridge
crawler.phantom.then(function (p) {
p.exit();
});
})
Basically I'm making a nice and simple mobile web app for a couple of my friends. It uses some online databases to store position data of shops. I've got the databases working like a charm. No problems there. In fact everything is working except it's all happening in the wrong order I think. The data from the database should be stored in an array and then the objects in that array are displayed on screen. However, using some console logs I've found that the data is being displayed, then being retrieved from the database, then the arrays are filled. But no matter what I do, I can't get it to work! Here is my code:
var latOfSpots;
var lngOfSpots;
var nameOfSpots;
var spotArray;
var spotLatLng;
var spotCollection;
var markers;
var Spot;
var spot;
function init() {
//-------------------------- INITIATE SPOT VARIABLES ---------------------------//
map = new google.maps.Map2(document.getElementById("map"));
latOfSpots= new Array(51.14400,51.02295);
lngOfSpots= new Array(0.25721,0.26450);
nameOfSpots= new Array('Tescos', 'Sainsburys');
spotLatLng= new Array();
markers= new Array();
Spot = Parse.Object.extend("Spot");
spot = new Spot();
//----------------- GET DATA FROM THE PARSE.COM DATABASE ---------------------//
//---------------------- DISPLAY ARRAY DATA ON MAP ---------------------------//
GetData();
DisplayData();
//----------------------- SET MAP SETTINGS -----------------------------------//
map.setCenter(spotLatLng[0],8);
//map.addControl(new google.maps.LargeMapControl());
map.addControl(new google.maps.MapTypeControl());
}; //END OF INIT FUNCTION ------------------------------------------------//
google.setOnLoadCallback(init);
//------------------- PRIMARY FUNCTION TO GET DATA FROM DATABASE ---------------//
function GetData()
{
var query = new Parse.Query(Spot);
spotCollection = query.collection();
spotCollection.fetch({
success: function(spotCollection) {
// spotCollection.toJSON()
// will now be an array of objects based on the query
FillArrays();
console.log('data retreived' + spotCollection);
}
});
}
//----------------- FUNCTION TO LOAD DATABASE INTO ARRAYS -------------------//
function FillArrays()
{
spotArray = spotCollection.toJSON();
for (var j = 0; j<spotArray.length; j++)
{
latOfSpots.push(spotArray[j].Latitude);
lngOfSpots.push(spotArray[j].Longitude);
nameOfSpots.push(spotArray[j].Name);
}
}
//------------------------ FUNCTION TO DISPLAY ALL ARRAY DATA ONSCREEN -----------------//
function DisplayData()
{
for(var i = 0; i<latOfSpots.length; i++)
{
spotLatLng[i] = new google.maps.LatLng(latOfSpots[i], lngOfSpots[i]);
for(var x = 0; x<latOfSpots.length; x++)
{
markers[x] = new google.maps.Marker(
spotLatLng[i], {
"draggable":false,
"title":nameOfSpots[i],
});
map.addOverlay(markers[x]);
}
}
console.log('data displayed');
}
Your database query is asynchronous. You need to use the data in the Get_Data callback function (after it has come back from the server). Currently you are attempting to use it before the server sends it back.
//------------------- PRIMARY FUNCTION TO GET DATA FROM DATABASE ---------------//
function GetData()
{
var query = new Parse.Query(Spot);
spotCollection = query.collection();
spotCollection.fetch({
success: function(spotCollection) {
// spotCollection.toJSON()
// will now be an array of objects based on the query
FillArrays();
console.log('data retreived' + spotCollection);
DisplayData();
}
});
}
I have a similar question here, but I thought I'd ask it a different way to cast a wider net. I haven't come across a workable solution yet (that I know of).
I'd like for XCode to issue a JavaScript command and get a return value back from an executeSql callback.
From the research that I've been reading, I can't issue a synchronous executeSql command. The closest I came was trying to Spin Lock until I got the callback. But that hasn't worked yet either. Maybe my spinning isn't giving the callback chance to come back (See code below).
Q: How can jQuery have an async=false argument when it comes to Ajax? Is there something different about XHR than there is about the executeSql command?
Here is my proof-of-concept so far: (Please don't laugh)
// First define any dom elements that are referenced more than once.
var dom = {};
dom.TestID = $('#TestID'); // <input id="TestID">
dom.msg = $('#msg'); // <div id="msg"></div>
window.dbo = openDatabase('POC','1.0','Proof-Of-Concept', 1024*1024); // 1MB
!function($, window, undefined) {
var Variables = {}; // Variables that are to be passed from one function to another.
Variables.Ready = new $.Deferred();
Variables.DropTableDeferred = new $.Deferred();
Variables.CreateTableDeferred = new $.Deferred();
window.dbo.transaction(function(myTrans) {
myTrans.executeSql(
'drop table Test;',
[],
Variables.DropTableDeferred.resolve()
// ,WebSqlError
);
});
$.when(Variables.DropTableDeferred).done(function() {
window.dbo.transaction(function(myTrans) {
myTrans.executeSql(
'CREATE TABLE IF NOT EXISTS Test'
+ '(TestID Integer NOT NULL PRIMARY KEY'
+ ',TestSort Int'
+ ');',
[],
Variables.CreateTableDeferred.resolve(),
WebSqlError
);
});
});
$.when(Variables.CreateTableDeferred).done(function() {
for (var i=0;i < 10;i++) {
myFunction(i);
};
Variables.Ready.resolve();
function myFunction(i) {
window.dbo.transaction(function(myTrans) {
myTrans.executeSql(
'INSERT INTO Test(TestID,TestSort) VALUES(?,?)',
[
i
,i+100000
]
,function() {}
,WebSqlError
)
});
};
});
$.when(Variables.Ready).done(function() {
$('#Save').removeAttr('disabled');
});
}(jQuery, window);
!function($, window, undefined) {
var Variables = {};
$(document).on('click','#Save',function() {
var local = {};
local.result = barcode.Scan(dom.TestID.val());
console.log(local.result);
});
var mySuccess = function(transaction, argument) {
var local = {};
for (local.i=0; local.i < argument.rows.length; local.i++) {
local.qry = argument.rows.item(local.i);
Variables.result = local.qry.TestSort;
}
Variables.Return = true;
};
var myError = function(transaction, argument) {
dom.msg.text(argument.message);
Variables.result = '';
Variables.Return = true;
}
var barcode = {};
barcode.Scan = function(argument) {
var local = {};
Variables.result = '';
Variables.Return = false;
window.dbo.transaction(function(myTrans) {
myTrans.executeSql(
'SELECT * FROM Test WHERE TestID=?'
,[argument]
,mySuccess
,myError
)
});
for (local.I = 0;local.I < 3; local.I++) { // Try a bunch of times.
if (Variables.Return) break; // Gets set in mySuccess and myError
SpinLock(250);
}
return Variables.result;
}
var SpinLock = function(milliseconds) {
var local = {};
local.StartTime = Date.now();
do {
} while (Date.now() < local.StartTime + milliseconds);
}
function WebSqlError(tx,result) {
if (dom.msg.text()) {
dom.msg.append('<br>');
}
dom.msg.append(result.message);
}
}(jQuery, window);
Is there something different about XHR than there is about the executeSql command?
Kind of.
How can jQuery have an async=false argument when it comes to Ajax?
Ajax, or rather XMLHttpRequest, isn't strictly limited to being asynchronous -- though, as the original acronym suggested, it is preferred.
jQuery.ajax()'s async option is tied to the boolean async argument of xhr.open():
void open(
DOMString method,
DOMString url,
optional boolean async, // <---
optional DOMString user,
optional DOMString password
);
The Web SQL Database spec does also define a Synchronous database API. However, it's only available to implementations of the WorkerUtils interface, defined primarily for Web Workers:
window.dbo = openDatabaseSync('POC','1.0','Proof-Of-Concept', 1024*1024);
var results;
window.dbo.transaction(function (trans) {
results = trans.executeSql('...');
});
If the environment running the script hasn't implemented this interface, then you're stuck with the asynchronous API and returning the result will not be feasible. You can't force blocking/waiting of asynchronous tasks for the reason you suspected:
Maybe my spinning isn't giving the callback chance to come back (See code below).
Hi i'm quite confused on some parts of the Print Plugin or the Phonegap plugin. See i was able to implement the code even created my own plugin but i was no returning values from objective-c (xcode) back to javascript so it was safe to say that it was easy to understand.
On this code:
https://github.com/phonegap/phonegap-plugins/blob/master/iPhone/PrintPlugin/PrintPlugin.js
On this block of code:
PrintPlugin.prototype.callbackMap = {};
PrintPlugin.prototype.callbackIdx = 0;
PrintPlugin.prototype.print = function(printHTML, success, fail, options) {
if (typeof printHTML != 'string'){
console.log("Print function requires an HTML string. Not an object");
return;
}
//var printHTML = "";
var dialogLeftPos = 0;
var dialogTopPos = 0;
if (options){
if (options.dialogOffset){
if (options.dialogOffset.left){
dialogLeftPos = options.dialogOffset.left;
if (isNaN(dialogLeftPos)){
dialogLeftPos = 0;
}
}
if (options.dialogOffset.top){
dialogTopPos = options.dialogOffset.top;
if (isNaN(dialogTopPos)){
dialogTopPos = 0;
}
}
}
}
var key = 'print' + this.callbackIdx++;
window.plugins.printPlugin.callbackMap[key] = {
success: function(result) {
delete window.plugins.printPlugin.callbackMap[key];
success(result);
},
fail: function(result) {
delete window.plugins.printPlugin.callbackMap[key];
fail(result);
},
};
var callbackPrefix = 'window.plugins.printPlugin.callbackMap.' + key;
return PhoneGap.exec("PrintPlugin.print", printHTML, callbackPrefix + '.success', callbackPrefix + '.fail', dialogLeftPos, dialogTopPos);
};
Especially this lines of code:
PrintPlugin.prototype.callbackMap = {};
PrintPlugin.prototype.callbackIdx = 0;
I'm confused by what that two lines of code does and why it is somehow important to incorporate or follow when you want to return values from xcode to javascript (NOTE: by me saying why it is somehow important to incorporate or follow when you want to return values from xcode to javascript i'm saying this based on what I've understood so far)
Can somebody explain how the two lines of code works and what are their purpose? Thank you.