htmlelements | Html Elements is a Java framework | Functional Testing library
kandi X-RAY | htmlelements Summary
kandi X-RAY | htmlelements Summary
This framework is designed to provide an easy-to-use way of interacting with web-page elements in your tests. It can be considered to be an extension of WebDriver Page Object. With the help of the Html Elements framework you can group web-page elements into blocks, encapsulate logic of interaction within them and then easily use created blocks in page objects. It also provides a set of helpful matchers to use with web-page elements and blocks. See [JavaDocs] and [Samples] for more details. You can ask your questions on StackOverflow with the [htmlelements] tag.
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Top functions reviewed by kandi - BETA
- Decorate a field
- Creates an instance of a HTML element
- Gets the Timeoutout annotation
- Creates a typed element
- Decorate the given field list
- Decorate the type
- Creates a new instance of the given class with the given arguments
- Start the downloader
- Downloads a website from a URL
- Invokes the method on an object
- Invokes the method
- Invokes the method on the web element
- Checks if an item matches the condition
- Finds find by class
htmlelements Key Features
htmlelements Examples and Code Snippets
Community Discussions
Trending Discussions on htmlelements
QUESTION
I have a vanilla Javascript class that builds a bunch of HTML, essentially a collection of related HTMLElement objects that form the user interface for a component, and appends them to the HTML document. The class implements controller logic, responding to events, mutating some of the HTMLElements etc.
My gut instinct (coming from more backend development experience) is to store those HTMLElement objects inside my class, whether inside a key/value object or in an array, so my class can just access them directly through native properties whenever it's doing something with them. But everything I look at seems to follow the pattern of relying on document selectors (document.getElementById
, getElementsByClassName
, etc etc). I understand the general utility of that approach but it feels weird to have a class that creates objects, discards its own references to them, and then just looks them back up again when needed.
A simplified example would look like this:
...ANSWER
Answered 2022-Jan-22 at 09:00In general, you should always cache DOM elements when they're needed later, were you using OOP or not. DOM is huge, and fetching elements continuously from it is really time-consuming. This stands for the properties of the elements too. Creating a JS variable or a property to an object is cheap, and accessing it later is lightning-fast compared to DOM queries.
Many of the properties of the elements are deep in the prototype chain, they're often getters, which might execute a lot of hidden DOM traversing, and reading specific DOM values forces layout recalculation in the middle of JS execution. All this makes DOM usage slow. Instead, create a simplified JavaScript model of the page, and store all the needed elements and values to the model whenever possible.
A big part of OOP is just keeping up states, that's the key of the model too. In the model you keep up the state of the view, and access the DOM only when you need to change the view. Such a model will prevent a lot of "layout trashing", and it allows you to bind data to elements without actually revealing it in the global namespace (ex. Map object is a great tool for this). Nothing beats good encapsulation when you've security concerns, it's an effective way ex. to prevent self-XSS. Additionally, a good model is reusable, you can use it where ever the functionality is needed, the end-user just parametrizes the model when taken into use. That way the model is almost independent from the used markup too, and can also be developed independently (see also Separation of concerns).
A caveat of storing DOM elements into object properties (or into JS variables in general) is, that it's an easy way to create memory leaks. Such model objects are usually having long life-time, and if elements are removed from the DOM, the references from the object have to be deleted as well in order to get the removed elements being garbage-collected.
In practice this means, that you've to provide methods for removing elements, and only those methods should be used to delete elements. Additionally to the element removal, the methods should update the model object, and remove all the unused element references from the object.
It's notable, that when having methods handling existing elements, and specifically when creating new elements, it's easy to create variables which are stored in closures. When such a stored variable contains references to elements, they can't be removed from the memory even with the aforementioned removing methods. The only way is to avoid creating these closures from the beginning, which might be a bit easier with OOP compared to other paradigms (by avoiding variables and creating the elements directly to the properties of the objects).
As a sidenote, document.getElementsBy*
methods are the worst possible way to get references to DOM elements. The idea of the live collection of the elements sounds nice, but the way how those are implemented, ruins the good idea.
QUESTION
I am attempting to grab HTML elements in order to first set and then obtain the selected values for a radio list. I have the following elements
...ANSWER
Answered 2021-Nov-23 at 22:15@panagiotis-kanavos had a great answer in the comments above.
I also discovered that you can use either JavaScript calls or a simple @Ref call for HTML Elements or frontend components as shown in the links provided.
QUESTION
I got a json file for some translations. I would like to use this file in a JS file to translate some strings. But i do not get a good solution to load this file and data.
What i got so far is in my HTML File:
...ANSWER
Answered 2021-Oct-18 at 15:36If you want to stick with synchronous XHTTPRequest (not recommended) then you need to just change the order of send()
function,
you call it before you attach onreadystatechange
event listener, it has to be called after:
QUESTION
I have an array of HTMLElements that all have an aria label and I'm trying to get those labels with the following code:
...ANSWER
Answered 2021-Aug-23 at 19:40You should get the aria-label
via the getAttribute
function.
QUESTION
I am using Angular 10 for a side-project of mine. I have a page that, on page load, retrieves a list of entries (in this case specifically spells
) from the server and renders 1 child-component ( component) per entry on that page. The user can (this is optional) specify a url parameter called
name
and if he does and there is an entry for which it is true spell.name === name
then I want to scroll to the component of that entry.
I am stuck trying to get the point where I have access to a list of these children. Ì was planning on using ViewChildren
to get the list of child-components. However, there don't appear to be any proper lifecycle hooks where it has accurate values. Further, even when trying to use document.querySelector (I know ahead of time that I will have a component with id "Arawns-Changing-Scales") I appear to be unable to get my required HTML Elements:
ngAfterContentInit
: You can't accessViewChildren
in general in this hook.document.querySelector
-calls return null.ngAfterViewInit
: The entries haven't been fetched at that point and neither have the child-components been initialized. ThusViewChildren
returns an emptyQueryList
. document.querySelector` returns nullngOnInit
: The child-components haven't been initialized. ThusViewChildren
returns an emptyQueryList
.document.querySelector
returns null
And after that I'm out of appropriate seeming lifecycle hooks. I've tried what is suggested here and put my attempt to access my ViewChildren
into a setTimeout callback, this just returned the same as not using a timeout at all. Other questions I found were using clicks or other user-triggered events to fire a scroll, which is not the case for me.
Where can I get some kind of HTMLElements/Components during the loading of the page ?
...ANSWER
Answered 2021-Aug-02 at 19:44You can use the ViewChildren annotation to watch for SpellComponents. The annotation exposes a QueryList which is first populated inside the ngAfterViewInit hook. In your case, your are fetching the spells in an asynchronous way and you are not able to get them in time for the ngAfterViewInit hook. However Querylist has a changes
property which is an Observable that will emit any time a SpellComponent is added, removed or moved from the template.
QUESTION
FYI: It is desirable that solutions be strictly vanilla Javascript.
How can I append an HTMLElement object to the middle of an element? Here's a sample with a bit of what I mean.
...ANSWER
Answered 2021-Jul-30 at 01:03Find the
element and use insertAdjacentElement
to insert after it.
QUESTION
I have a scene including an Object3D
representing a globe and multiple mesh elements representing points on this globe. I use OrbitControls
to allow interaction. Additionally I attach HTMLElements
to the points on the globe. Since a globe basically is a sphere, points might not be visible for the camera when placed on the back.
How can I detect whether or not such a point is visible for the camera/hidden by the object? Doing so I want to hide the HTMLElement
in relation to the mesh's visibility. The HTMLElement
's position is updated on render, hence this check should happen on render as well I assume:
ANSWER
Answered 2021-Jul-27 at 09:41I recommend a simple algorithm with two steps:
- First, check if the given point is in the view frustum at all. The code for implementing this feature is shared in: three.js - check if object is still in view of the camera.
- If the test passes, you have to verify whether the point is occluded by a 3D object or not. A typical way for checking this is a line-of-sight test. Meaning you setup a raycaster from your camera's position and the direction that points from your camera to the given point. You then test if 3D objects in your scene intersect with this ray. If there is no intersection, the point is not occluded. Otherwise it is and you can hide the respective label.
QUESTION
I have two minimal HTMLElements: an AppRoot
and a SubElement
. The innerHTML of the elements is generated via lit-html's render
and html
templating functions.
AppRoot
's HTML template is a div
with two paragraphs in it: one displays the text of a message
attribute, the other one instantiates a SubElement
and passes it a string.
The SubElement
's HTML template is solely the passed string.
I would expect the rendered HTML to look like this:
...ANSWER
Answered 2021-Jul-26 at 13:11The second parameter of render
is the container where the template should be rendered at. Each component is currently rendering the template results to the document body and overwriting previously rendered results.
QUESTION
i'm working on a simple note-taking app for my portfolio using JS and Firebase. Before i tell you what's happening i feel like i need to show you how my code works, if you have any tips and concerns please tell me as it would be GREATLY appreciated. That being said, let's have a look "together". I'm using this class to create the notes:
...ANSWER
Answered 2021-Jan-29 at 23:06I was thinking of adding another field to each note, something that won't change so i can easily identify and edit each note.
Yes, you absolutely need an immutable identifier for each note document in the firestore so you can unambiguously reference it. You almost always want this whenever you're storing a data object, in any application with any database.
But, the firestore already does this for you: after calling db.collection(user.uid).doc()
you should get a doc with an ID. That's the ID you want to use when updating the note.
The part of your code that interacts with the DOM will need to keep track of this. I suggest moving the code the creates the firestore document into the constructor of CreateNote
and storing it on this
. You'll need the user id there as well.
QUESTION
I am writing an Angular component that has a QueryList
of HTMLElements
and when iterating over the list, I am able to log each element to console. However when I try to access a property of the element it returns undefined. This is true for every property of the element. I have made sure that the elements are actually present in the list, but they are present as objects with the property 'nativeElement' Here is the console
Thank you for considering this.
...ANSWER
Answered 2021-Jan-29 at 00:35Hey @Drew have you tried in this way I have shown below as nativeElement object which exposes all the methods and properties of the native elements in angular. Replace QueryList
with QueryList
then do as shown below.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install htmlelements
You can use htmlelements like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the htmlelements component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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