AngularJS - Showing different divs based on the ng-if result - javascript

I've got a simple chat app in AngularJS, and I'm sending a message to the view which is being outputted on the front end like this:
<div id="messages" class="col-xs-12 chat-messages">
<div class="col-xs-12 chat-message" ng-repeat="message in chatMessages">
<div class="you">
<ul class="media-list">
<li class="media">
<div class="media-left">
<div class="media-object img-circle" style="background-image: url( {{message.avatar_url}} )"></div>
</div>
<div class="media-body">
<div class="media-heading text-muted small">
{{message.nickname}}
</div>
<div class="message-content bubble">
{{message.content}}
</div>
</div>
</li>
</ul>
</div>
</div>
</div>
At the moment I am just going through the chatMessages array and outputting them using this div. I have given each message another attribute of kind where I will send to the view different kinds of messages, such as userMe, userOther, global etc. and I will need to use a slightly different HTML markup for each kind of message. I understand that this should be done using ng-if in AngularJS, but I don't quite know how to go about this.
From the view, I will need to output some different HTML depending on the message.kind value.
Any ideas?

If you have several possible div options for each element, I'd use ng-switch, like Tom said in the comments.
The idea is that you switch on the message.kind, or whatever you want to switch on, and have each div as a "Case" for that:
It would look something like this:
<div class="media-body" ng-switch="message.kind">
<div class="media-heading text-muted small" ng-switch-when="1">
{{message.nickname}}
</div>
<div class="message-content" ng-switch-when="2">
{{message.content}}
</div>
<div class="message-content bubble" ng-switch-default>
default text
</div>
</div>
Fiddle

You have two solution to archieve what you want :
<div ng-repeat="msg in messages">
<div ng-if="msg.kind === 'userMe'">userMeMessage</div>
<div ng-if="msg.kind === 'global'">globalMessage</div>
...
</div>
Or this :
<div ng-repeat="msg in messages|filter:{kind:'userMe'}">
UserMe
</div>
<div ng-repeat="msg in messages|filter:{kind:'global'}">
Global
</div>

Related

display json data from array

I'm trying to display some json data I got from a get request. So far I've been able to display other arrays with no problem, but I'm having trouble displaying this particular array for some reason, and I'm not getting any errors.
the one that won't display correctly is the showtimes array.
<div *ngIf="show">
<div *ngFor="let shows of show"class="showtime">
<div class="panel panel-default">
<div class="panel-heading">
<h3 class="panel-title">{{shows.title}}</h3>
</div>
<div class="panel-body" >
<div class="row">
<div class="col-md-7 col-sm-5 col-xs-12 ">
<img class="thumbnail movie_pic" src="http://developer.tmsimg.com/{{shows.preferredImage.uri}}?api_key={{api}}"><br>
</div>
<div class="col-md-5 col-sm-7 col-xs-12">
<ul class="list-group">
<li class="list-group-item">Genres: {{shows.genres}}</li>
<li class="list-group-rel">Release Date: {{shows.releaseDate}}</li>
<li class="list-group-rel">{{shows.longDescription}}</li>
<li *ngFor="let shows of show.showtimes" class="list-group-rel">shows.theatre.name</li>
</ul>
</div>
</div>
</div>
</div>
</div>
</div>
You are missing {{}} expression
<li *ngFor="let shows of show.showtimes" class="list-group-rel">{{shows.theatre.name}}</li>
EDIT
Change it to some other variable name, since you are already using shows,
<li *ngFor="let showdetail of show.showtimes" class="list-group-rel">{{showdetail.theatre.name}}</li>
As it looks from your snapshot, the array of objects is stored in variable showtimes, if that is the case, try the below code:
<li *ngFor="let detail of showtimes" class="list-group-rel">
{{detail.theatre.name}}
</li>
A nested ngFor loop solved the problem..
<div *ngFor="let shows of show">
<div *ngFor="let detail of shows.showtimes">
<p>{{detail.theatre.name}}</p>
</div>
</div>
works perfectly, thanks for the help

Expand/collapse box like Google Images

I got this:
<div class="col-lg-3">
<div class="visibleContent">
</div>
<div class="expandibleContent">
</div>
</div>
<div class="col-lg-3">
<div class="visibleContent">
</div>
<div class="expandibleContent">
</div>
</div>
<div class="col-lg-3">
<div class="visibleContent">
</div>
<div class="expandibleContent">
</div>
</div>
<div class="col-lg-3">
<div class="visibleContent">
</div>
<div class="expandibleContent">
</div>
</div>
I want .visibleContent to be clickable to expand the .exandibleContent like Google Images with triangle pointer.
Correct Example: LINK
I'm trying to deeply understand that code but I can't.
Can you write a code with the same functionality but only with four images?
I only need a grid of 4 images with the same slidetoggle function.
Check this out
https://codepen.io/anon/pen/owbebY
change
$('.image-grid').empty().html(cells(50));
to
$('.image-grid').empty().html(cells(4));
do you need like this

Using the same ID value multiple times to anchor to the same location

I have a horizontal grid consisting of 3 image squares - The action that I am trying to produce is when any grid section is clicked, the user will be anchored down to a slideshow box that is being displayed below the grid. the first bit of HTML that I have pasted below is one grid (there will be 3) - and the section section of HTML is the slideshow section. Since I cant use the same ID tag multiple times in HTML, I believe I will need to use some for of Javascript or jQuery to take the user from the grid on click to the . Could anyone help me figure out how to do that?
<div id="grid-item" class="grid-item grid-item-1">
<div class="grid-project">
<img class="profile-image" src="img/image1.png">
</div>
<div class="grid-overlay">
<div class="project-info">
<a href="#project-link" id="toggle">
<h4 class="project-name">Headline 1</h4>
<p class="project-categories">description 1</p>
</a>
</div>
</div>
</div>
<div id="grid-item" class="grid-item grid-item-2">
<div class="grid-project">
<img class="profile-image" src="img/image.png">
</div>
<div class="grid-overlay">
<div class="project-info">
<a href="#project-link" id="toggle">
<h4 class="project-name">Headline 2</h4>
<p class="project-categories">description 2</p>
</a>
</div>
</div>
</div>
<div id="slideshow" class="slideshow">
<div class="slideshow_inner">
<a name="project-link" class="anchor">
<img src="img/slide_img_1.png">
</div>
</div>
If you're using id="" you can't use same id twice... Each element should have different id name. Change this in the second grid:
<a href="#project-link" id="toggle">
to this:
<a href="#project-link" id="toggle2">
and don't use same id twice...
Also, you have used name="" in the second section of your html, instead of id:
<a name="project-link" class="anchor">

Possible to ng-show part of a line?

Basically as the title says I was wondering if it is possible or if someone could come up with an alternative to this. I have this div:
<div id="wrapper">
<div style="margin: 1em">
<h4>User Card for {{username.slice(5)}}</h4>
<div id="canvas-holder" class="col-lg-4">
<canvas id="chart-area" width="20%" height="20%"></canvas>
</div>
<div class="col-lg-8">
Total Score: {{totalscore.toFixed(3)}}
</div>
</div>
</div>
In the line where it says User Card for {{username.slice(5)}} obviously nothing shows up in the {{ }} until there is data for it, but on my page the User Card for part still shows up. I was wondering the possibility of getting only the User Card part to show up while there is no {{username.slice(5)}} and once there is data for that field then the for will show up? Any ideas?
You should be able to wrap a span around the portion you want to show, such as:
<h4>User Card <span ng-show="username">for {{username.slice(5)}}</span></h4>
Try using ng-if on the parent element
<div id="wrapper">
<div style="margin: 1em">
<h4 ng-if="username.slice(5)">User Card for {{username.slice(5)}}</h4>
<div id="canvas-holder" class="col-lg-4">
<canvas id="chart-area" width="20%" height="20%"></canvas>
</div>
<div class="col-lg-8">
Total Score: {{totalscore.toFixed(3)}}
</div>
</div>
</div>

jquery: run script without affecting divs with same classes

Got a product loop, where I need to change images on click. Like in every product loop, there is a whole bunch of divs with same classes. Which in my case get affected. Can't isolated them. Initial image does disappear. But not a single one, that's intended, but all of them. And no new images appear
html of the single product
<div class="product">
<div class="galwrap displaytable">
<div class=" galitem galitem1"></div>
<div class=" galitem galitem2"></div>
</div>
<div class="displaytable galcolors">
<div class="displaytablecell galcolor galcolor1"></div>
<div class="displaytablecell galcolor galcolor2"></div>
</div>
</div>
and jquery
$(".product").each(function () {
$(this).find(".galcolor2").click(function () {
$(".galitem").hide();
$(this).parent().find(".galitem2").show();
});
});
http://jsfiddle.net/h1twaf1y/
http://jsfiddle.net/q72nw00t/2/
Javascript:
$(".galcolor2").click(function(){
$(".galitem").hide();
$(this).parent().parent().find(".galitem2").show();
});
HTML: (this is just a section repeated over and over again)
<div class="product">
<div class="galwrap displaytable">
<div class=" galitem galitem1">this will be hidden</div>
<div class=" galitem galitem2" style="display: none">this will be shown</div>
</div>
<div class="displaytable galcolors">
<div class="displaytablecell galcolor galcolor1"></div>
<div class="displaytablecell galcolor galcolor2">click this</div>
</div>
</div>
----------
<div class="product">
<div class="galwrap displaytable">
<div class=" galitem galitem1">this will be hidden</div>
<div class=" galitem galitem2" style="display: none">this will be shown</div>
</div>
<div class="displaytable galcolors">
<div class="displaytablecell galcolor galcolor1"></div>
<div class="displaytablecell galcolor galcolor2">click this</div>
</div>
</div>
----------
<div class="product">
<div class="galwrap displaytable">
<div class=" galitem galitem1">this will be hidden</div>
<div class=" galitem galitem2" style="display: none">this will be shown</div>
</div>
<div class="displaytable galcolors">
<div class="displaytablecell galcolor galcolor1"></div>
<div class="displaytablecell galcolor galcolor2">click this</div>
</div>
</div>
Basically you want to listen for any clicks on ALL .galcolor2, then when that is clicked, hide all .galitem, and then only show the RELATED .galitem2 by going up two levels to the div.product and finding the correct item
The problem in your initial code, is that you only went up ONE level with parent() to div.galcolors where you should have instead went up TWO levels with parent().parent(), up to div.product.
You want to find .galitem relative to the item clicked, the way you can find that is to use $.closest(). Closest will travel up the DOM tree (starting with the current node) until it finds a matching selector, which is much better than using parent because you're not dependent on the DOM structure making your code less brittle and easier to read. So your code would look like this instead:
$(".product").each(function(){
$(this).find(".galcolor2").click(function(){
$(".galitem").hide();
$(this).closest(".product").find(".galitem2").show();
});
});

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