How to add placeholder to text-field in servicenow service portal? - javascript

I need to add placeholder to text field in catalog item under service portal on page load, I tried in catalog client script with jquery and angular/document but no success, And found that it's not supported any other alternate soln ?
Catalog Client Script:
function onLoad() {
var elm = angular.element(element.getElementsByClassName("form-control"));
//when I use angular I get this error:
js_includes_sp.jsx?v=08-28-2017_0947&lp=Mon_Aug_28_11_44_06_PDT_2017&c=2_42:63808 (g_env) [SCRIPT:EXEC] Error while running Client Script "Placeholder
Script": TypeError: Cannot read property 'element' of null.
jQuery("#sp_formfield_IO:5cdafd764f02030007b03fb28110c70b").attr("placeholder","hello world");
// if I use jquery or $jq I get below error
(g_env) [SCRIPT:EXEC] Error while running Client Script "Placeholder
Script": TypeError: jQuery is not a function
}
This is how html gets generated in servicenow:
<span ng-switch-default="true" class="ng-scope">
<!-- ngIf: !field.max_length || 256 > field.max_length -->
<input ng-model="field.stagedValue" ng-change="stagedValueChange()"
maxlength="" autocomplete="off" name="IO:5cdafd764f02030007b03fb28110c70b"
id="sp_formfield_IO:5cdafd764f02030007b03fb28110c70b" data-type="string"
placeholder="" ng-if="!field.max_length || 256 > field.max_length"
class="form-control ng-pristine ng-untouched ng-valid ng-scope ng-empty ng-
valid-maxlength" ng-model-options="{allowInvalid: true}" ng-
disabled="field.isReadonly()" aria-invalid="false"><!-- end ngIf:
!field.max_length || 256 > field.max_length --><!-- ngIf: field.max_length
>= 256 --></span>

Ahoy,
The short answer is that there is no accepted way to do this in the Service Portal. This is because DOM manipulation is strictly blocked.
However, the much-much-longer answer is that there is indeed a way to do this in Service Portal. I've written an article about it, which you can find here.
You'll need the CatItemVariables Script Include from that post, which translates catalog variables into sys_ids. Since UI Scripts don't run on the Service Portal (even global ones, last I checked), you'll also need to create a UI Script and set it as a JS Include, which you include as part of the Theme for your Service Portal.
(How to do this is detailed in the post.)
In the UI Script, you'll want to get the cat item variables using a REST request, and that Script Include.
There may also be a simpler way:
Set up the Script Include(s) mentioned in the article.
In an onLoad client script, use the Script Include to get the sys_IDs of all the variables associated with the catalog item by using GlideAjax to call the client-callable Script Include.
Use the this object as the stand-in for window, and remember that document is an element of window:
this.document.getElementsByName('IO:' + itemVars['var_name'])[0];
In the above, itemVars is the variable name that contains the resulting catalog item variable objects, and 'var_name' is the variable name.
It doesn't really do what you're looking for, but you might also consider the "placeholder text" dictionary field on the field's dictionary itself.

If you're looking to just have a placeholder populated for a Variable without the need for it to be set dynamically, you can use the Example Text field in the variable itself.
This will populate as a placeholder in the form

Related

How can I get an HTML tag’s value to send an HTML.Action()

I have these lines of code:
<span
class="close-modal"
onclick="#Html.Action("SaveNotes", "CallCenter", new { activityId = item.callIdKey, noteText = "test1" })">
×
</span>
Notes: <br />
<textarea name="paragraph_text" rows="5" style="width:90%">
#item.NoteText
</textarea>
I would like to replace test1 from the noteText route variable and instead change it to whatever the value in the <textarea> tag is.
Is there an elegant way of doing this without writing a giant block of jQuery code?
#Html.Action() renders a partial view as an HTML string during page processing (on the server side). It doesn't exist any more in the markup, once the page is sent to the browser. You can't do what you are trying to do this way. At the very least, I'm sure you don't want to render a partial view inside the onclick event of your <span> tag.
Why not instead use an HTML helper for the <textarea> tag? Then you can get whatever value the user typed into it on the server code. You'll want to make the form post itself back to the server on the close-modal element:
<span class="close-modal" onclick="$('form').submit()">×</span>
<form method="post" action="#Url.Action("SaveNotes", "CallCenter", new { activityId=item.callIdKey }">
Notes: <br />
#Html.TextArea("noteText", item.NoteText, new { rows="5", style="width:90%" })
</form>
This assumes you have jQuery already (a common assumption with ASP.NET). You may not need the <form> tags if you already have a form on your page.
A #gunr2171 notes in the comments, the only way to dynamically update a link once it's been rendered to the browser is via some form of client-side scripting, typically JavaScript. In your case, I'd recommend doing something like this:
<span
class="close-modal"
data-href-template="#Url.Action("SaveNotes", "CallCenter", new {activityId = item.callIdKey, noteText="{note}"})"
>
×
</span>
Note: As #HBlackorby notes in his answer, you shouldn't be using #Html.Action() here; I assume you meant #Url.Action().
This way, your JavaScript has a template (data-href-template) that it can work against with a clearly defined token ({note}) to replace, instead of needing to parse the URL in order to identify where the previously replaced text is. Otherwise, you potentially end up in a scenario where you type e.g. CallCenter into your <textarea /> and it's now an ambiguous reference that you can't just blindly replace. Or, worse, you type 'a' and it's really ambiguous.
If you are already using jQuery on your site, the actual replacement might be done using something along the lines of:
$(document).ready(function () {
$('span.close-modal').click(function() {
var noteInput = $('textarea[name="paragraph_text"]');
var encodedNote = encodeURI(noteInput.text());
var template = $(this).data("href-template");
var targetUrl = template.replace("{note}", encodedNote);
window.location.href = targetUrl;
});
});
You can also do this without jQuery, obviously—and should if you're not already depending on it. The point is to illustrate that this doesn't necessarily need to be a "giant block of jQuery code". In fact, this could be done in just a few lines—and probably should be. I deliberately broke it out into multiple steps and variables for the sake of readability.

Access and Office add-in checkbox checked status

In my Office add-in I have a checkbox like the following:
<div class="ms-CheckBox">
<input id="inputId" type="checkbox" class="ms-CheckBox-input" />
<label id="labelId" role="checkbox" class="ms-CheckBox-field" aria-checked="false" name="checkboxA" for="inputId>
<span class="ms-Label">Text</span>
</label>
</div>
I want to retrieve through JavaScript its checked status (or its aria-ckecked status, I'm still not getting the differences between them), which I thought was through document.getElementById( 'labelId' ).checked, since it's specified in the documentation that they have an optional checked member, but I only get an undefined with it.
I'm very new to these technologies and have a couple concerns:
Does "optional member" mean that I have to explicitly create it so that it exists? If so, how can I do that?
However the checked member may come to existance, do I have to manually handle its value every time it's clicked on by the user or is it already internally managed and I simply haven't found the way to access it yet?
Maybe I just can't see a mistake I've made on the html code for the checkbox?
Thank you in advance!
You have several sources of documentation on Office UI Fabric depend on framework you are using or about to use. Your choices are:
JavaScript only (no framework)
React
Angular
Form the look up table you would choose JavaScript only link and follow it to find the component you are interested in. Before that I would suggest to read "Get Started using Fabric JS".
Now when you have documentation on checkbox component of vanilla JS implementation, follow the steps to set up your checkbox. This would include:
Confirm that you have references to Fabric's CSS and JavaScript on your page
Copy the HTML from one of the samples below into your page.
<div class="ms-CheckBox">
<input tabindex="-1" type="checkbox" class="ms-CheckBox-input">
<label role="checkbox" class="ms-CheckBox-field" tabindex="0" aria-checked="false" name="checkboxa">
<span class="ms-Label">Checkbox</span>
</label>
</div>
Add the following tag to your page, below the references to Fabric's JS, to instantiate all CheckBox components on the page.
<script type="text/javascript">
var CheckBoxElements = document.querySelectorAll(".ms-CheckBox");
for (var i = 0; i < CheckBoxElements.length; i++) {
new fabric['CheckBox'](CheckBoxElements[i]);
}
</script>
To get the status of your checkbox use method getValue() which returns true or false whether the component is checked or not.

Why I can't access a form object inside a ngInclude on angularJS?

I have a screen built with a several stacks of ng-includes. The last one, in special, I build the screen based on user configuration.
Sometimes, I have to show a Form in one of this included templates. And when my user click on save button, I have to validate if all fields in the form are valid.
In the meantime, when a try to access form object, to check for $valid, my form is undefined.
After a day fighting against it, I've discovered that ng-include process is not accepting my form object to be created.
I've created this plunker to see if it's really happening on a simple project, making a working form and not working one:
http://plnkr.co/edit/4oMZYLgaYHJPoSZdSctI?p=preview
Basically, created a form, like this, with demanded angular attributes:
<form name="sampleForm">
<input type="text" name="aws" required ng-model="myValue">
<br/>myValue: "{{ myValue }}"
<br/>
<input type="text" name="aws" required ng-model="myValue">
<br/>myValue: "{{ myValue }}"
</form>
And trying to access form object like this:
$scope.sampleForm.aws.$valid
And the result is:
$scope.sampleForm === undefined
Someone know how to solve this problem?
Since ng-include creates a new scope, $scope.sampleForm will be undefined from within the included page.
The solution should be getting the ng-controller="formController" declaration inside of the included HTML page itself, which I think is also a better design, since I can't see a scenario where it's not "controlling" the form.
The other non-included form obviously works as you might expect.
Plunker

auto update the html dom for all the users whenever there's change

I am sorry for asking such a noob question. But I saw a video very long time ago and I think it was a framework based on jquery, where if a user makes some CRUD changes to an object, the object's properties are auto updated not only for 1 user, but on all the other users browser. I am trying to find it but I am all lost! I would really really appreciate if you could help me out. Thank you!
Lets say you have a html form that looks like this
<form>
<input type="text" name="firstName" value="Jackson" />
<input type="text" name="lastName" value="Rivera" />
<textarea name="lifestory">
When i was 2yo, spot died...
</textarea>
</form>
simply add an OnChange event on every element you want to dynamicly change:
<form>
<input .. .. onchange="shareValueWithOthers(this.name, this.value)"/>
<input .. .. onchange="shareValueWithOthers(this.name, this.value)"/>
<textarea onchange="shareValueWithOthers(this.name, this.innerHTML)">
When i was 2yo, spot died...
</textarea>
</form>
Notice that a change of the elements value (or in the case of the textarea - it's contents) causes the function shareValueWithOthers(this.name, this.value) starts to run. this.name is the variable for the name, this.value is the variable for the value, this.innerHTML is the variable for the contents.
Now you have to write a Javascript function so you can send the changes to the server. Look into AJAX. Make a function that sends a POST request to your PHP script.
Your PHP script should save all the values either in a database, or in JSON-format in a file on the server. JSON is the easiest. Look into JSON PHP PARSER.
Last but not least. If you do the right thing, and make sure that every new value that a user enters gets updated in your json file by your PHP script. You can make the last step. which is to make a javascript function that retrieves the JSON file. JSON stand for JavaScript Object Notation, so your javascript can use this right away.
What you will do next, is to change all the values in your DOM that look different from the values in your retrieved JSON object.
two type of protocol, Websocket or WebRTC.
socket.io is Websocket very popular and easy.
gevent-socketio for python
Plenty base on node.js. sailsjs, deployd, meteor

How do we set mask on a dynamically inserted input?

Since Angular-UI-Mask is acting oddly, I'm using jquery-inputmask to some of my inputs, but when an input is dynamically inserted ny Angular it gets no mask:
<li ng-repeat="item in items">
<input type="text" name="birth_date" class="span2 format_date" ng-model="birth_date" placeholder="Data de Nascimento" required />
</li>
This is the related script
<script type="text/javascript">
jQuery(document).ready(function(){
$(".format_date").inputmask("99/99/9999");
});
</script>
Is there anything I can do to force it to set the mask to new inputs?
jQuery plugins like jQuery.inputMask work by (as your code shows) attaching behaviour to DOM elements when the document is 'ready'. This will run once, and never again, so for dynamically-added content this approach doesn't work.
Instead, you need something that will run whenever the corresponding DOM is changed. So whenever an 'item' in your 'items' list is added, the element is added and the corresponding jQuery function is run against that element. You need to use AngularJS for this and you could write your own directive, but thankfully, someone has already written the code for you: the jQuery Passthrough plugin as part of Angular UI's UI.Utils.
Here is a working Plunkr.
You need to include the script at the top, like so (I downloaded it from GitHub):
<script src="ui-utils.jq.js"></script>
Load the module into AngularJS, for example:
var app = angular.module('myApp', ['ui.jq']);
And then use the directive in your HTML markup:
<input type="text" ui-jq="inputmask" ui-options="'99/99/9999', { 'placeholder': 'dd/mm/yyyy' }" />

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