For the Dart code below:
for(var SVG_Element in SVG_Element_list){
SVG_Element.onClick.listen((event){
//some code
});
}
How to determine the ID of the clicked object? I tried "event.target.id" and would only get the type of the Element like "line" or "circle".
How to get the ID?
Thanks!
I would have to look at your markup to know precisely what is going on, but here is an example where element.target.id works with an SVG element.
Given the following markup:
<div id="container">
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" id="mySVGElement">
<circle cx="100" cy="100" r="40" stroke="black"
stroke-width="20" fill="blue" id="myCircle" />
</svg>
</div>
The following code gets you the id of the <svg>:
import 'dart:html';
void main() {
query('#container').onClick.listen((event) {
print(event.target.id);
});
}
Is your use case different? Post some real code and I bet someone can help you with your specific situation.
Related
I'm implementing a fancybox into my project and I'm writing a script to automatically wrap an anchor around the images with the url to the image and a "data-fancybox" attribute to let the fancybox script do its thing. However, I'm only getting the url to the very first image, since they all share the same class. There is a dynamic figure id that seems to be the one to get.
My question is - how do I use this figure id to fetch the appropriate img src?
The html is like this:
<figure id="XXXXXXX">
<div>
<img src="image.jpg" />
</div>
</figure>
... other stuff ...
<figure id="YYYYYYY">
<div>
<img src="image2.jpg" alt="">
</div>
</figure>
My code right now is as follows (which works, but only returns the first image url):
$(document).ready(function() {
var src = $("figure img").attr("src");
var a = $("<a/>").attr( { href:src , "data-fancybox":"" } );
$("figure img").wrap(a);
});
I know I can use
var id = $("figure").attr("id");
to get the id I need, but I'm pretty new to coding so I'm not sure how I implement this and use it to get the correct url. Any help is appreciated!
If your goal is to make your images clickable, then you can do smth like this:
$('figure img').each(function() {
$(this).parent().css({cursor: 'pointer'}).attr('data-fancybox', 'gallery').attr('data-src', this.src);
});
DEMO - https://jsfiddle.net/1jznsL7x/
Tip: There is no need to create anchor elements, you can add data-fancybox and data-src attributes to any element and it will work automagically.
I'm trying to use the package doctorpangloss:filter-collections in my project.
What I have now is the following:
Server:
Meteor.publish('locations', function() {
return Locations.find();
});
Router:
this.route('foci', {
path: '/foci',
(...)
},
waitOn : function () {
return Meteor.subscribe('locations');
}
});
Client:
----.html file----
<template name="foci">
<div class="row">
{{> LocationList}}
</div>
</template>
<template name="LocationList">
{{#each locationData}}
(...)
{{/each}}
</template>
----.js file----
Template.LocationList.helpers({
locationData: function(){
return Locations.find()
}
});
Everything standard till now. On the /foci page the data is displayed.
But I would like to have a list (or actually not a list, but tiles, but thats irrelevant here) that I can filter. I've tried my best with this package, but nothing worked. Based on the documentation ( https://github.com/workpop/filter-collections/ ) it should be a few minutes work to get it done, yet I've spent way more on trying to figure it out.
If anyone could help adding the standard filter bar to the page, or knows of another similar package I could use it would be appreciated.
I have a backend written in golang exposing /api/list interface. It returns lists when called from GET and create new list when it receive POST with parameters.
I can read it with standard core-ajax element, there is a huge amount of examples to do that.
What I didn't understood is what should I do, when I want to create new element through POST? I read the documentation and searched for sample code for half day, can you point me to right direction?
//
Ok, thanks for help, it was really only bad format of json I was sending. There is still dark cloud in my mind telling that I misunderstood something from conceptual view. Is this:
<link rel="import" href="bower_components/polymer/polymer.html">
<link rel="import" href="bower_components/core-ajax/core-ajax.html">
<polymer-element name="channels-service" attributes="channels">
<template>
<style>
:host {
display: none;
}
</style>
<core-ajax id="ch_load"
auto
url="/api/list"
on-core-response="{{channelsLoaded}}"
handleAs="json">
</core-ajax>
<core-ajax id="ch_update"
url="/api/list"
on-core-response="{{channelsUpdated}}"
method="POST"
handleAs="json">
</core-ajax>
</template>
<script>
Polymer('channels-service', {
created: function() {
this.channels = [];
},
channelsLoaded: function() {
// Make a copy of the loaded data
this.channels = this.$.ch_load.response.slice(0);
},
newChannel: function(ch_name) {
// this.$.ch_update.body = "ch_name";
this.$.ch_update.body = '{"Name":"pitchalist2"}'
this.$.ch_update.go();
},
channelsUpdated: function() {
//window.log(this.$.ch_update.response.slice(0));
}
});
</script>
</polymer-element>
correctly written data layer? It looks very counterintuitive to me and in examples using local data storage it works way easier.
You can send a POST request by setting the method attribute (method="POST") and the body attribute (body='{"my":"data"}'). Indeed you need a second iron-ajax element for this request.
See the attributes section in the iron-ajax documentation.
I need to extract "https://www.somesite.com/Some.Name.123" from the code below.
That code segment is repeated many times, and I need the URLs ..Some.Name.X.
There are other code segments between each of the ones I'm interested in, with very different surrounding html. I don't need the ..Some.Name.x URLs in those other segments.
The following is unique to what URLs I need: "<a class="-cx-PRIVATE-uiImageBlock__image"
<div class="clearfix pvm">
<a class="-cx-PRIVATE-uiImageBlock__image -cx-PRIVATE-uiImageBlock__largeImage lfloat"
aria-hidden="true" tabindex="-1" href="https://www.somesite.com/Some.Name.123">
I don't know how to tag that preceding HTML with iMacros, or how to do that with jQuery as the structure will a bit different each time, but you could to this.
Save the web pages with iMacros. Write a program (c, etc.) to read each of the saved files and write the URLs that follow "cx-PRIVATE-uiImageBlock__image" to a file. Add that list of URLs to an iMacro, or have iMacros read the file, and then process each URL from iMacros.
You need to use some scripting.
My answer makes use of jQuery
var listoflinks = []; //array containing your links
$('a[href*="somesite.com"]').each(function () { // for each link that contains somesite.com in href
var j = $(this).attr('href'); //put the whole href in a variable
listoflinks.push(j); // put all values in an array
});
you'll end up with an array that contains all the href values you're looking for.
If you want to see an example and/or you want to play around with the script you can go here:
http://jsfiddle.net/flish/rESjg/
Edited
Your code is still not clear enough, but hopefully this may help
<a class="sibling a" href="link">sibling a</a><br />
<div class="sibling div"><br />
<a class="child a" href="start-with-link/correct-link">Child a</a><br />
</div><br />
Above is the markup I've used. What this means is that I have considered that you have the following elements:
a // with a sibking div
div // with a child a
a // and all of them have appropriate classes
For this markup you can use the following code (jQuery, of course)
var listoflinks = []; //array containing your links
$('a[class="sibling a"]').siblings('div[class="sibling div"]').children('a[class="child a"]').each(function () {
if ((($(this).attr("href")).substring(0,15))=="start-with-link"){
var i = $(this).attr("href");
listoflinks.push(i);
}
});
View detailed example at http://jsfiddle.net/flish/HMXDk/
Be that as it may, you can add more sibling and children elements in case you have other html entities you forgot to mention
<a class="-cx-PRIVATE-uiImageBlock__image" ------------------ <div class="clearfix pvm"> <a class="-cx-PRIVATE-uiImageBlock__image -cx-PRIVATE-uiImageBlock__largeImage lfloat" aria-hidden="true" tabindex="-1" href="somesite.com/some.name.123">
For example, what means ------------------ in your code above?
I'm looking for unbind functionality in knockout. Unfortunately googling and looking through questions asked here didn't give me any useful information on the topic.
I will provide an example to illustrate what kind of functionality is required.
Lets say i have a form with several inputs.
Also i have a view model binded to this form.
For some reason as a reaction on user action i need to unbind my view model from the form, i.e. since the action is done i want all my observables to stop reacting on changes of corresponding values and vise versa - any changes done to observables shouldn't affect values of inputs.
What is the best way to achieve this?
You can use ko.cleanNode to remove the bindings. You can apply this to specific DOM elements or higher level DOM containers (eg. the entire form).
See http://jsfiddle.net/KRyXR/157/ for an example.
#Mark Robinson answer is correct.
Nevertheless, using Mark answer I did the following, which you may find useful.
// get the DOM element
var element = $('div.searchRestults')[0];
//call clean node, kind of unbind
ko.cleanNode(element);
//apply the binding again
ko.applyBindings(searchResultViewModel, element);
<html>
<head>
<script type="text/javascript" src="jquery-1.11.3.js"></script>
<script type="text/javascript" src="knockout-2.2.1.js"></script>
<script type="text/javascript" src="knockout-2.2.1.debug.js"></script>
<script type="text/javascript" src="clickHandler.js"></script>
</head>
<body>
<div class="modelBody">
<div class = 'modelData'>
<span class="nameField" data-bind="text: name"></span>
<span class="idField" data-bind="text: id"></span>
<span class="lengthField" data-bind="text: length"></span>
</div>
<button type='button' class="modelData1" data-bind="click:showModelData.bind($data, 'model1')">show Model Data1</button>
<button type='button' class="modelData2" data-bind="click:showModelData.bind($data, 'model2')">show Model Data2</button>
<button type='button' class="modelData3" data-bind="click:showModelData.bind($data, 'model3')">show Model Data3</button>
</div>
</body>
</html>
#Mark Robinson gave perfect solution, I've similar problem with single dom element and updating different view models on this single dom element.
Each view model has a click event, when click happened everytime click method of each view model is getting called which resulted in unnecessary code blocks execution during click event.
I followed #Mark Robinson approach to clean the Node before apply my actual bindings, it really worked well.
Thanks Robin.
My sample code goes like this.
function viewModel(name, id, length){
var self = this;
self.name = name;
self.id = id;
self.length = length;
}
viewModel.prototype = {
showModelData: function(data){
console.log('selected model is ' + data);
if(data=='model1'){
ko.cleanNode(button1[0]);
ko.applyBindings(viewModel1, button1[0]);
console.log(viewModel1);
}
else if(data=='model2'){
ko.cleanNode(button1[0]);
ko.applyBindings(viewModel3, button1[0]);
console.log(viewModel2);
}
else if(data=='model3'){
ko.cleanNode(button1[0]);
ko.applyBindings(viewModel3, button1[0]);
console.log(viewModel3);
}
}
}
$(document).ready(function(){
button1 = $(".modelBody");
viewModel1 = new viewModel('TextField', '111', 32);
viewModel2 = new viewModel('FloatField', '222', 64);
viewModel3 = new viewModel('LongIntField', '333', 108);
ko.applyBindings(viewModel1, button1[0]);
});