I load a polymer element through iron-ajax as a document.
I get the following response:
Then I want to "import/register" it, create a "pacs-pull" element and attach it to my current element:
// should import/register the pacs-pull element from the response?
// should I use the whole response?
// should I retrieve it as text?
var elt = this.response.querySelector('#pacs-pull');
// how do I import it?
document.importNode(elt, true);
// create it
var importedElt = document.createElement("pacs-pull");
// attach it
this.$.container.appendChild(importedElt);
The pacs-pull element appended is empty.
Should I get an HTML element from iron-ajax?
How do I import/register the retrieved element?
How do I create it?
How do I attach it?
I went through the polymer doc and through stack overflow but couldn't find an answer to my first 2 questions.
Using importRef is not an option as I do not have direct access to the element (call goes through and API).
Note - it seems iron-ajax text is better because it exactly returns the proper element:
But still I do not see how to use it then:
var plugin = document.createElement("plugin");
plugin.innerHTML = this.response;
document.importNode(plugin, true);
//document.registerElement('pacs-pull', this.plugin);
var elt = document.createElement("pacs-pull");
this.$.pluginContainer.appendChild(elt);
Thanks!
Related
I have a javascript that adjusts the dom depending on the JSON response it receives for each field. an example is:
if (data.errors.firstName) {
document.getElementById("firstName-group").classList.add("has-error");
let helpBlock = document.createElement('div');
helpBlock.classList.add('help-block');
helpBlock.innerHTML = data.errors.firstName;
document.getElementById("firstName-group").append(helpBlock);
}
The problem here is that this will result in the dom being repeatedly appending like so:
image
so how do I avoid this issue when appending the dom? should this clear out any appended messages already? or how to accomplish this?
You can can check if the #firstName-group element has already the .help-block div under it, and only append if it doesn't.
Here is an example:
if (data.errors.firstName && !document.querySelector('#firstName-group .help-block')) {
document.getElementById("firstName-group").classList.add("has-error");
let helpBlock = document.createElement('div');
helpBlock.classList.add('help-block');
helpBlock.innerHTML = data.errors.firstName;
document.getElementById("firstName-group").append(helpBlock);
}
This is an instance of Rappid Toolkit which uses jointJS for building visual tools as for web development. http://i.stack.imgur.com/6XSis.png
In this toolkit you can make a graph which can become a website.
My problem is the following one:
In every single element of this graph there is a box below it with:x,y,width,height,angle.
I want to change this information of this boxcontent and to display some info from this element but the code in which I have to add my snippet is the following(var Halo is the var for my element in the graph):
var halo = new joint.ui.Halo({
cellView: cellView,
boxContent: function(cellView) {
return"Here I want to display my box content info instead of x,y,width,height, angle";
}
}).render();
If I try to add my code inside it to access in JSON format my current element info my full code is:
var halo = new joint.ui.Halo({
cellView: cellView,
boxContent: function(cellView) {
// Drawing
var selectedObjectDataText = JSON.stringify(this.cellView.toJSON());
var selectedObjectDataJSON = JSON.parse(selectedObjectDataText);
return(selectedObjectDataJSON[0].wi_name);
}
}).render();
where wi_name is the name of my element but in the first line I can't access the specific element of my graph.
var selectedObjectDataText = JSON.stringify(this.cellView.toJSON());
Is there any global way to access my halo(my graph element) since this.cellView.toJSON() doesn't work?
I tried this.model.toJSON() this.cellView.model.toJSON() etc with no result
Note that JointJS links and elements are Backbone Models (linkView and elementView are Backbone Views).
To get the current value of an attribute use get() method.
boxContent: function(cellView) {
return cellView.model.get('wi_name');
}
Alternatively you can use prop(), that can return also nested properties of a model.
boxContent: function(cellView) {
return cellView.model.prop('wi_name');
}
It worked for var selectedObjectDataText = JSON.stringify(cellView.model.toJSON());
Thank you all for your support.
I am trying to alter a DOM structure in node.js. I can load the XML string and alter it with the native methods in xmldom (https://github.com/jindw/xmldom), but when I load XPath (https://github.com/goto100/xpath) and try to alter the DOM via that selector, it does not work.
Is there another way to do this out there? The requirements are:
Must work both in the browser and server side (pure js?)
Cannot use eval or other code execution stuff (for security)
Example code to show how I am trying today below, maybe I simply miss something basic?
var xpath = require('xpath'),
dom = require('xmldom').DOMParser;
var xml = '<!DOCTYPE html><html><head><title>blah</title></head><body id="test">blubb</body></html>';
var doc = new dom().parseFromString(xml);
var bodyByXpath = xpath.select('//*[#id = "test"]', doc);
var bodyById = doc.getElementById('test');
var h1 = doc.createElement('h1').appendChild(doc.createTextNode('title'));
// Works fine :)
bodyById.appendChild(h1);
// Does not work :(
bodyByXpath.appendChild(h1);
console.log(doc.toString());
bodyByXpath is not a single node. The fourth parameter to select, if true, will tell it to only return the first node; otherwise, it's a list.
As aredridel states, .select() will return an array by default when you are selecting nodes. So you would need to obtain your node from that array.
You can also use .select1() if you only want to select a single node:
var bodyByXpath = xpath.select1('//*[#id = "test"]', doc);
I've been searching for a few hours to try and find a solution to my issue, for some reason partially similar answers on here don't seem to be working for me - so I'm creating my own question.
Basically, I'm loading pre-rendered HTML from the server using jQuery's $.get method, and I need to split the HTML returned into two sections (one that's wrapped in a div called #section-one and the other simply alongside that div, with no parent element).
See the example below:
$.get('http://jamie.st/remote_file.php', function(data){
// I want to get '#section-one' and then remove it from data, basically splitting a single returned HTML resource into two, that can be placed in two different areas of the page.
var sectionOne = $(data).find('#section-one');
// This should only return the HTML of '#section-one'
console.log(sectionOne);
// Also how can I then remove '#section-one' from the 'data' variable? The equivalent of calling the below, but from the 'data' variables string/html.
$(sectionOne).remove();
// So eventually the below would return the HTML without the '#section-one' element (and it's children)
console.log(data);
});
I've also created a jsfiddle which you can play around with if you need to, it's set up to use a real PHP file that I've hosted for demo purposes.
http://jsfiddle.net/6p0spp23/6/
If you can submit a jsfiddle link back that would be much appreciated, thanks in advance guys!
When you create a jQuery object with the remote contents $(data) becomes a collection of elements so instead of find() you want to use filter() like so:
$.get('http://jamie.st/remote_file.php', function(data){
var $data = $(data),
$sectionOne = $data.filter('#section-one'),
$rest = $data.filter(':not(#section-one)');
console.log($sectionOne);
console.log($rest);
});
Demo fiddle
I think the best way to put the received data inside a parent div. Then you can call remove or any other method to use it.
You can make parent div hidden using .hide() method if you don't want to show it.
Here I did it:
http://plnkr.co/edit/jQKXyles8sP8dliB7v0K?p=preview
// Add your javascript here
$(function() {
$.get('http://jamie.st/remote_file.php', function(data) {
$("#parent").hide();
$("#parent").html(data);
$("#section-one").remove();
console.log($("#section-one").html())
alert($("#parent").html())
});
});
When you remove a subsection from a derived jQuery object, the original string is not updated with the change so if you want the updated html content you need to generate it from the jQuery object. One way to do this is to
$.get('http://jamie.st/remote_file.php', function (data) {
var $ct = $('<div />', {
html: data
});
// I want to get '#section-one' and then remove it from data, basically splitting a single returned HTML resource into two, that can be placed in two different areas of the page.
var sectionOne = $ct.find('#section-one');
// This should only return the HTML of '#section-one'
console.log(sectionOne);
// Also how can I then remove '#section-one' from the 'data' variable? The equivilant of calling the below, but from the 'data' variables string/html.
$(sectionOne).remove();
// So eventually the below would return the HTML without the '#section-one' element (and it's children)
console.log($ct.html());
});
Demo: Fiddle
How I get the ancestor of a Yahoo UI node of a specific kind? For example, if I have a input element...
var node = A.one('input#_new_WAR_localizededitorportlet_test1');
I want to get its enclosing form. I know how to get the parent node:
var parent = node.get('parentNode');
but not how to (elegantly) go through the tree until reaching the form. For now I am using this
while (node.get('tagName').toLowerCase() != 'form') {
node = node.get('parentNode');
}
but it is not a really succinct way of doing it.
Is there a better way of doing it?
Just use the ancestor() method:
node.ancestor('form')