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Flex, AngularJS + Masonry, akoenig/angular-deckgrid and more [duplicate]

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How to Create Grid/Tile View? [duplicate]
(8 answers)
Closed 6 years ago.
I've been sending this emails:
I'm about to release an application for web application security which requires the use of a grid like Masonry. I've tried all, and every single angular module, directives, and different approaches, including CSS based techniques, pure Vanilla JS, and your solution is, one of the best options available online. I found, however a main issue, that affects not only your approach, but every single Angular module or addon.
Issue #1:
Your solution, as any other solution, is based on an array of information that is already handled by angular. In your example case, it would be source="photos". Now, the problem comes when there's 2 different groups of elements. Let's assume, that I have a group of elements that where previously defined in the DOM. In other words:
<div angular-grid>
<p class="angular-grid-elem">This content is already here from the beginning, in the DOM, directly in the HTML, and I want to apply a Masonry like style on it.</p>
<div class="angular-grid-elem" style="height:500px">Same happens with this content.</div>
<!-- and here comes more content, which is loaded from an array of information -->
<div class="angular-grid-elem" ng-repeat="data in data_array">
<p>{{data.header}}</p>
<p>{{data.details}}</p>
</div>
</div>
Now, as you can see in the example, the content inside the main div, , should be all, affected by the masonry layout. Of course, this is pseudo code and I'm aware that the sintaxis of your approach is different. However what I'm trying to represent here, is that your module, would be way better, if you would be able to apply the masonry like grid, including elements which are already present in the DOM/HTML in first place, with elements that are coming from an array.
Issue #2:
There's a second issue I found in multiple angular modules and approaches. What happens if I have 2, 3 or let's say even 16 divs which all of them, present the same masonry like behaviour? I have to admit, I didn't try it with your module, as I couldn't solve the initial problem, that requires the proper handling of the combination of elements that are (1) pre-defined in the HTML, and (2) coming from and ng-repeat function.
A possible approach:
In order to solve the second problem and the first one, at the same time, I have thought that the best approach might be to make use of element classes and elements ids to handle the situation? Why? Because it can easily applied into elements that are already there in the DOM in first place, as well, to elements that are joining or leaving dynamically by the use of a ng-repeat or any other of the angular functions.
Here's an example of what I'm saying:
<div class="angular-grid-dad-one" ng-grid="{'dad': 'angular-grid-dad-one', 'childs': 'angular-grid-elem'}" >
<p class="angular-grid-elem">This content is already here from the beginning, in the DOM, directly in the HTML, and I want to apply a Masonry like style on it.</p>
<div class="angular-grid-elem" style="height:500px">Same happens with this content.</div>
<!-- and here comes more content, which is loaded from an array of information -->
<div class="angular-grid-elem" ng-repeat="data in data_array">
<p>{{data.header}}</p>
<p>{{data.details}}</p>
</div>
</div>
In this case, the main div defines itself as id="angular-grid-dad-one",
And also tells the Angular module, that the element angular-grid-dad-one is a container div of a masonry like structure,
And that it's childs are marked as angular-grid-elem.
As we could see on this line.
ng-grid="{'dad': 'angular-grid-dad-one', 'childs': 'angular-grid-elem'}"
This way, it allow us to make use of the Angular module in multiple instances. For example.
<div class="seccion_01" ng-grid="{'dad': 'seccion_01', 'childs': 'seccion_01_child'}" ng-show="seccion == '1'">
<p class="seccion_01_child">This content is already here from the beginning, in the DOM, directly in the HTML, and I want to apply a Masonry like style on it.</p>
<div class="seccion_01_child" style="height:500px">Same happens with this content.</div>
<!-- and here comes more content, which is loaded from an array of information -->
<div class="seccion_01_child" ng-repeat="data in data_array">
<p>{{data.header}}</p>
<p>{{data.details}}</p>
</div>
</div>
<div class="another_container" ng-grid="{'dad': 'another_container', 'childs': 'child_of_container'}" ng-show="seccion == '2'">
<p class="child_of_container">This content is already here from the beginning, in the DOM, directly in the HTML, and I want to apply a Masonry like style on it.</p>
<div class="child_of_container" style="height:500px">Same happens with this content.</div>
<!-- and here comes more content, which is loaded from an array of information -->
<div class="child_of_container" ng-repeat="data in data_array">
<p>{{data.header}}</p>
<p>{{data.details}}</p>
</div>
</div>
<div class="redundant_example" ng-grid="{'dad': 'redundant_example', 'childs': 'childs_of_redundancy'}" ng-show="seccion == '3'">
<p class="childs_of_redundancy">This content is already here from the beginning, in the DOM, directly in the HTML, and I want to apply a Masonry like style on it.</p>
<div class="childs_of_redundancy" style="height:500px">Same happens with this content.</div>
<!-- and here comes more content, which is loaded from an array of information -->
<div class="childs_of_redundancy" ng-repeat="data in data_array">
<p>{{data.header}}</p>
<p>{{data.details}}</p>
</div>
</div>
I have used a Json styled instruction in the ng-grid value in order to explain my point, but it doesn't really have to be Json. It even could be 2 different paramenters:
<div class="dad" ng-grid-dad="dad" ng-grid-childs="childs" ng-show="seccion == '3'">
<p class="childs">This content is already here from the beginning, in the DOM, directly in the HTML, and I want to apply a Masonry like style on it.</p>
<div class="childs" style="height:500px">Same happens with this content.</div>
<!-- and here comes more content, which is loaded from an array of information -->
<div class="childs" ng-repeat="data in data_array">
<p>{{data.header}}</p>
<p>{{data.details}}</p>
</div>
</div>
As well, regarding the infinite scroll that you have created, you would be able to load more elements, triggering the infinite scroll, and loading only elements from one specific array, of course.
Please let me know if I can help further, I would like to integrate your module into my application.
And let's hope that by the next implementation of HTML and CSS we have this situation fully under control by the next generation of browsers, I'm aware of the work it takes to make this grids in Javascript.

Actually, I am gonna go out on a limb and say that flex-wrap: wrap will fix the issue.
.holder {
flex-wrap: wrap
-moz-columns: 2 auto;
box-sizing: border-box;
display: flex;
padding: 0 40px;
width: 100%;
}

JQuery find text nodes with not selector on nested elements work only with .contents() and filter()

Please help me understand why this is happening.
(UPDATE) TL;DR:
nested elements' text will be included when using find with not(NESTED_ELEMENT) selector but will be excluded when using find with not(NESTEDT_ELEMENT)+contents+filter(TEXT_NODE).
I want to get the text from a page but to exclude some elements.
For the simplicity, I have excluded <p> element only (and descendants) but when I use the text(), I'm also getting the text in the excluded element.
When I filter the results with contents() to include only text nodes, only then the not selector is "working" by not returning the text from the excluded elements. Please see image below with the code used:
Why isn't it working without using contents()?
Thanks.
For your convenience:
The URL that I tested on is this one.
The code that gives me the excluded element's text:
$('body').find(':not(p, p *)').text()
The code that gives me the desired text (excluded element's text not present):
$('body').find(':not(p, p *)').contents().filter(function(){return this.nodeType == 3}).text()
And here's the HTML part from the URL. As you can see, there's a <p> element there and As described, I want to get the text from this HTML but to exclude some elements (p was selected for simplicity, there will be lots more rules in production).
<div class="col-lg-12">
<header id="header" role="banner" class="jumbotron">
<h1>
<img src="/img/icon/apple-touch-icon-114-precomposed.png" class="offscreen" alt="">
<i class="icon-html5" aria-hidden="true"></i><span class="offscreen">HTML 5</span>
<span>Semantics and Accessibility: <span class="subheader">Heading Structure</span></span>
</h1>
<p class="lead" id="lead_content">The more you understand the specification, the more you'll realize there are more right
ways to implement <em>proper</em> semantic HTML markup than wrong. Thinking in terms of web accessibility can provide direction.</p>
</header>
</div>

Try using .clone() , .remove() , .text()
var filtered = $(".col-lg-12").clone();
filtered.find("p").remove();
console.log(filtered.text())
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js">
</script>
<div class="col-lg-12">
<header id="header" role="banner" class="jumbotron">
<h1>
<img src="/img/icon/apple-touch-icon-114-precomposed.png" class="offscreen" alt="">
<i class="icon-html5" aria-hidden="true"></i><span class="offscreen">HTML 5</span>
<span>Semantics and Accessibility: <span class="subheader">Heading Structure</span></span>
</h1>
<p class="lead" id="lead_content">The more you understand the specification, the more you'll realize there are more right ways to implement <em>proper</em> semantic HTML markup than wrong. Thinking in terms of web accessibility can provide direction.</p>
</header>
</div>

Using ng-model (or other solution) without breaking MVC paradigm

I recently asked a question on Stack where I was trying to obtain a DOM element's ID via AngularJS' ng-click. Essentially the answer which was given (with an important caveat was):
Use event.currentTarget vs event.target to get the element to which the binding was registered, BUT this is an atypical way to do it because it ties the controller to the DOM when ideally the controller should know nothing about the DOM.
I'm starting to get a better idea of this now, but would like some further help / clarification.
Using ng-repeat I dynamically render a number of tiles being pulled from a database and present them to the user for selection. When a user clicks on a given tile I want to be able to 'know' that element's ID (or some unique identifier key) so that I can pass it into my javascript / java and then retrieve the details for said key where they are rendered in a different, more detailed view.
I've started to research ng-model which supports the two-way MVC idea, but I'm stuck. You can see below that I'm dynamically rendering each tile with a different ng-model value which equals the tile's database key. Is this the solution I want? If so, how can I reference the ng-model value in javascript? Or if I do that, am I breaking the MVC again? If that's the case, what would be a solution which preserves the model?
Cheers
HTML:
<div ng-repeat="tile in tileResult">
<div ng-model={{tile.id}} ng-click="handleThisElement($event); changeView('panel3')" class="container-fluid btn-default tile">
<div class="row">
<div class="col-xs-9">
<div class="row">
...
</div>
</div>
<div class="col-xs-3 tile-stats">
<div class="row text-center">
...
</div>
</div>
</div>
</div>
</div>

Tie the ng-model to an object, best if it's something in the repeater. Also, ng-model is generally used with an input... not on a div, so I'm not sure what you're trying to achieve here.
You may want to initialize the value to the index (or some other default) if the value doesn't exist, this will avoid null pointers when you want to change the value later.
<div ng-repeat="tile in tileResult">
<div ng-model="tile.someDataValue" ng-init="tile.someDataValue = $index" ng-click="handleThisElement($event); changeView('panel3')" class="container-fluid btn-default tile">
...
</div>
</div>
To later reference the value, you can just access your tileResult object at the appropriate value/index
Ex:
console.log($scope.tileResult[0].someDataValue);
Or you can access the entire 'tile' on click by passing the 'tile' into a function. Ex:
<div ng-model="tile.someDataValue" ng-init="tile.someDataValue = $index" ng-click="someFunction(tile); handleThisElement($event); changeView('panel3')" class="container-fluid btn-default tile">
$scope.someFunction = function(someTile){
console.log(someTile.id, someTile); // log the id, then the entire object
}

If I understand you correctly, you want to be able to access the unique identifier for each tile.
This can easily be done without Ng-Model! One easy fix would be to set the id of each element with the unique identifier:
<div ng-repeat="tile in tileResult">
<div id="{{tile.id}}" ng-click="handleThisElement($event); changeView('panel3')" class="container-fluid btn-default tile">
<div class="row">
This way, when you pass $event to your handleThisElement function, you are able to access the id in the same way you have before.

angular-ui > ui-utils > ui-scroll does not work (v. 0.1.0)

I am using this: http://angular-ui.github.io/ui-utils/ and to be more specific this:https://github.com/angular-ui/ui-utils/blob/master/modules/scroll/README.md
however it does not seem to work. Here is an example:
<div ng-scroll-viewport style="height:240px;" class="chat-messages">
<div class="chat-message" ng-scroll="chat in chats">
<div ng-class="$index % 2 == 0? 'sender pull-right' : 'sender pull-left'">
<div class="icon">
<img src="{{chat.img}}" class="img-circle" alt="">
</div>
<div class="time">
{{chat.time}}
</div>
</div>
<div ng-class="$index % 2 == 0? 'chat-message-body on-left' : 'chat-message-body'">
<span class="arrow"></span>
<div class="sender">{{chat.name}}</div>
<div class="text">
{{chat.msg}}
</div>
</div>
</div>
</div>
But All I get in HTML is this :
<div class="chat">
<div class="chat-messages" style="height:240px;" ng-scroll-viewport="">
<!--
ngScroll: chat in chats
-->
</div>
If I replace ng-scroll with ng-repeat, it works perfectly. But chats need scroll bars, so... How can I get one? :)

The documentation of ngScroll directive had also tricked me into simply replacing ng-repeat by ng-scroll. Unfortunately, it turned out not as simple as that, see also the small, working example at http://plnkr.co/edit/fWhe4vBL6pevcuLutGC4 .
Note that
"datasource" (or whatever object you want to iterate over for the contents of the scroll list) must implement a method "get(index,count,success)" that calls success(results), see hXXps://github.com/angular-ui/ui-utils/blob/master/modules/scroll/README.md#data-source
The array must have exactly count elements. Otherwise, no scroll window/bar will ever show, which can be very irritating!
Although UI.Utils says it has no external dependencies, ui.scroll has actually a dependency on either ui.scroll.jqlite, or jQuery. So make sure to list both ui.scroll and ui.scroll.jqlite in your module definition which contains the controller with datasource object (and load their .js files, or load ui-utils.js which contains both), see https://github.com/angular-ui/ui-utils/blob/master/modules/scroll/README.md#dependencies
Be careful when your server is sending some Content Security Policies (CSP). Maybe turn them off while trying to get ng-scroll to work first, then re-apply CSP and tune the policies accordingly for ui.scroll to work.

One way of getting a scroll is to use CSS, set overflow-y to scroll and you will get scroll bar.
If you need to scroll to the bottom, play with anchorScroll
http://docs.angularjs.org/api/ng.$anchorScroll.

How do I find a specific child element using javascript

I've just started using javascript and am trying to do the following:
My html doc contains divs and span elements like below.
I want to create a variable which will store the value of my-new-id for a specific div child element.
The only information I have to go on, is that I always know what the span text will be cause it's based on a username.
Therefore, how would I get the value of my-new-id for user1?
I have already figured out how to navigate to the correct div elemenet using the document.getElementById method. I then try to use a jquery selector such as :contains, but get stuck.
Many thanks on advance.
<div id=1>
<span my-new-id=x>user1</span>
<span my-new-id=y>user2</span>
<span my-new-id=z>user3</span>
</div>
<div id=2>
<span my-new-id=x>user10</span>
<span my-new-id=y>user1</span>
<span my-new-id=z>user30</span>
</div>

Using jQuery:
var val = $('span:contains("user1")').attr('my-new-id');
A couple of additional points:
Do not use IDs that begin with a number. This is not allowed in the HTML4 spec, and can cause unexpected behavior in some browsers. Instead, prefix your ID's with an alphabetic string, like this:
<div id="container1">
...
</div>
I would recommend that you use data-* attributes instead of making up non existent attributes. You can make data attributes like this:
<span data-new-id="x">user1</span>
You can then retrieve this value using:
$('span:contains("user1")').data('newId');
Note that the attribute name has been stripped of dashes and camel-cased.