CSS multi-column layout of forms in Firefox - forms

It looks like FireFox (my version is 19.0.2 - OSX) doesn't render forms properly using multicolumn layout. It renders normal paragraph text etc properly, but not forms.
The CSS:
fieldset {
-moz-column-count: 2;
column-count: 2;
-webkit-column-count: 2;
}
This is what it looks like in FireFox:
This is what it looks like in WebKit browsers:
Please view this sample code / live demo in FireFox to see that it doesn't render the multi-column layout for form elements.
Is this a bug, or is there something I can do to get it working in FireFox too?

Maybe the multi column attribute can't apply for the moment on this specific markup element that you use (namely fieldset).
Fieldset is dedicated to group some form fields, but I'm not sure it is already implemented to render in multi column...
So I should think that it is a bug that will be corrected in the future...
You can counter this by creating a simple div with flot left for the first form elements... Of course, with this option, you have to manually split the form elements that will be drawned on the left and on the right, you don't have the magic of equals length mutli-colmun anymore...
div#column1{
width : 400px;
float : left;
}
div#column2 {
float : left;
}
<div id="#column1">Your first fields</div>
<div id="#column2">Your second fields</div>

Related

EvoHtmlToPdf - gap between item and number in auto generated table of content

I am trying to create lines between items and numbers in a table of contents generated automatically by EVO HTML to Pdf. My current approach is via CSS and the TableOfContentsOptions:
converter.TableOfContentsOptions.SetItemStyle(1, "border-bottom:1px solid #000000)
and
converter.TableOfContentsOptions.SetPageNumberStyle(1, "border-bottom:1px solid #000000)
The result looks pretty good. However, there is a gap between item and number which unfortunately bothers our customers...
Is there a way to close the gap?
(EVO HTML to PDF version 9.0)
EvoHtmlToPdfs table of contents is indeed a "real" HTML table:
Using CSS, you can hide the 3rd-last column:
converter.TableOfContentsOptions.GlobalStyle =
"""
td:nth-last-child(3){
display:None;
}
"""

Backdrop filter not working when mix blend mode of another element on the page is changed

The browser version is Chrome 87.0.4280.88
Here is how I accidentally detected this bug:
There are two independent divs on the page and both are position: fixed;
One of them has a hover effect with which its mix-blend-mode is changed.
The other one has glassmorphism style on it with backdrop-filter: blur(...px);
The filter works only when the other element on the page is set to mix-blend-mode: normal; otherwise it looks like as if it was not supported.
I am going to quit using that hover effect for now anyway but if there is a trick then it would be nice to let the world know about it.
Came across this bug as well (Chrome 90).
Quick Fix:
Add any backdrop-filter rule to the same element that has the mix-blend-mode rule applied.
Example:
.blend {
mix-blend-mode: difference;
backdrop-filter: opacity(1); /* fixes the chrome-bug */
}
The previous solution also worked for me (Chrome 93). Although I've had to wrap my element inside another and apply the mix-blend-mode to it to make it work like so:
.wrapper {
mix-blend-mode: multiply;
}
.blend {
backdrop-filter: opacity(1);
}
Save me a lot of hours. Thanks a bunch!

TinyMCE - preserve style and function of selected element

I have decided to 'enhance' a textarea in a form with TinyMCE... however, doing so has interrupted the styling and jQuery functionality of the original element, as TinyMCE wraps that element in an iframe and a few divs. What I'd love to be able to do is to get the TinyMCE functionality (preserving text formatting, etc.) but not lose the styling and functions that I had associated with the original textarea. I looked through the TinyMCE documentation, but couldn't seem to find anything about this. Does anyone have any thoughts on how to accomplish this?
My form features the textarea like so:
<head>
<script>tinymce.init( { selector: 'textarea' } );</script>
</head>
<div class="form-element">
<div class="label-container">
<label for="body">Post</label><span class="warning">Please fill out this field</span>
</div>
<textarea id="body" class="input-field" name="body"></textarea>
</div>
but adding TinyMCE breaks the label/textarea relationship.
Also, jQuery functionality is broken, such as this validation script:
$("form").submit(function(e){
tinyMCE.triggerSave();
var inputFields = $(".input-field");
var proceed = true;
for(var i = 0; i < inputFields.length; i++){
if($(inputFields[i]).val() == ""){
$(inputFields[i]).css("border", "solid 3px #E86F3A");
$(inputFields[i]).prev().find(".warning").show();
var proceed = false;
e.preventDefault();
}
else{
$(inputFields[i]).css("border", "none");
$(inputFields[i]).prev().find(".warning").hide();
};
};
//OTHER STUFF...
});
since the textarea.input-field is no longer picked up in the inputFields variable.
So, in a nutshell, I'm looking for the TinyMCE wrapper to 'inherit' the styling and functionality of the element that it is attached to. Possible?
As you have correctly surmised when you invoke TinyMCE on a <textarea> the original <textarea> is no longer visible on the page and its replaced by an <iframe> and series of <div> elements.
If you want to keep the underlying <textarea> in sync you can use the tinymce.triggerSave() method. This will update all of the underlying <textarea> elements with the current value of the appropriate instance of TinyMCE.
You can do this when someone tries to save/submit the content or you can try to perform this when certain editor events happen (https://www.tinymce.com/docs/advanced/events/#editorevents). Unless you need real time accuracy of the contents of the <textarea> its far easier to call the triggerSave() method right before you perform you jQuery validation.
Note: Putting a border on the <textarea> won't have any impact on TinyMCE as you no longer see the underlying <textarea>. You can certainly try to add CSS to the editor's HTML in real time. The outer border of TinyMCE 4.4 has these classes attached:
class="mce-tinymce mce-container mce-panel"
...but do note that these classes could change over time so if you upgrade TinyMCE check to make sure your CSS still works before upgrading.

Split html string into multiple pages

I am trying to develop eBook reader kind of android application. I need to split long html string(sent by server at run-time) into pages on fly based on the screen space available. Html content is an article which could contain text, images, videos etc.I am using WebView to display the html.
Can anyone give me direction towards how this can be achieved.
Thanks in advance.
Doing any sort of HTML/DOM parsing is going to drive you up the wall, I think, and means that you're effectively starting to develop your own HTML layout engine.
It's a better idea to use the CSS3 column functions. Basically, get your content to render within a fixed width-and-height column. This becomes your page. Then shift your content position left to move between pages, and wrap it in a container that will hide overflow elements.
Our HTML will basically be:
<body>
<div id="container">
<div id="content">
CONTENT GOES HERE
<span id="endMarker"></span>
</div>
</div>
<div>
<button id="previous">Previous</button>
<span id="page">Page N of M</span>
<button id="next">Next</button>
</div>
</body>
Our basic CSS is:
#container {
width: 240px;
overflow: hidden;
background-color: yellow;
}
#content {
position: relative;
height: 30em;
-moz-column-width: 240px;
-webkit-column-width: 240px;
column-width: 240px;
-moz-column-gap: 10px;
-webkit-column-gap: 10px;
column-gap: 10px;
}
Now we will set the left CSS property for the #content to switch between pages, in multiples of -250px.
We've only got to work out how many columns our content takes, and we've got paging. How to get css3 multi-column count in Javascript gives a hint: we're going to find it from the left position of #endMarker.
Here's a working example http://lateral.co.za/pages.html, with the first chapter of Moby Dick. It works in Chrome and on Android, but not in Firefox - I think because of differences in the CSS columns implementations. Since we're interested in Android here, the code is good.
The important parts are:
The CSS settings as above.
The addition of a <span id="endMarker"></span> after the content (but within the #content div)
The addition of a #previous and #next button, and a #page span, all outside the #container.
This javascript after jQuery loads:
var _column = 0;
var _columnCount = 0;
var _columnWidth = 240;
var _columnGap = 10;
$(function() {
_columnCount = Math.floor($('#endMarker').position().left/(_columnWidth + _columnGap));
setColumn = function(i) {
_column = i;
document.getElementById('content').style.left = -1 * _column * (_columnWidth + _columnGap);
$('#page').html('Page ' + (_column+1) + ' of ' + (_columnCount+1));
}
$('#next').click(function() {
if (_column==_columnCount) return;
setColumn(_column+1);
});
$('#previous').click(function() {
if (0==_column) return;
setColumn(_column-1);
});
setColumn(0);
});
That's it.
There's room for work. One might want to think about that number of columns calculation, I sort of sucked it from the referenced SO post, but haven't actually thought it through... The width of the container seems to affect the column width of the content, which doesn't entirely make sense to me.
But at least everything seems to be working without having to do any HTML parsing and own layout, at least in Chrome and on Android.
You have to parse the HTML, best would be to use some library where you can access the DOM like in JavaScript. Then you can create a custom layout for the parsed content. Does WebView supports JavaScript? That would be a good start to try with.
Obviously you can not split at arbitrary locations of the HTML file, your have to consider the HTML-Tags. After modifying the DOM or splitting the html you can provide an custom CSS file for the content to display it in a way you like and add some pagination using your library or JavaScript.
Using <span style="display:none"></span> can help you to hide content in a website. Then you don't have to split is physically (it is in memory after loading the page anyway).
Hope that helped a bit. You will not get a full solution here, but maybe you got some ideas. If you find further more specific problems it will be easier to ask more specific questions.

Prevent EPiServer from wrapping content in <p> tags

I'm working on a site in EPiServer, and whenever I create a page property with the type set to "XHTML string" (which uses the WYSIWYG content editor in Edit mode), it wraps all content in <p> tags.
Is there any way to prevent this from happening? I can't remove the paragraph margins universally through my CSS (e.g. p {margin: 0 !important;}) since I do need the margins for actual paragraphs of text. I've even tried going to the HTML source view in the editor and manually deleting the <p> tags that it generates, but it immediately adds them back in when I save!
It doesn't happen when the property type is either a long or short string, but that's not always an option since the content might contain images, dynamic controls, etc.
This is becoming a real nuisance since it's very hard to achieve the layout I need when basically every element on the page has extra margins applied to it.
As Johan is saying, they are there for a reason - see more info here. That being said, it's not impossible to remove them. It can be done in one of two ways (taken from world.episerver.com:
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
myEditor.InitOptions["force_p_newlines"] = "false";
}
or
<script type="text/javascript">
tinyMCE.init({
force_p_newlines: false
});
</script>
You can add your own custom TinyMCE-config that removes P-elements or strip them out using regular expressions either when saving the page or when rendering the property/page.
I think it's a bad idea though. P-elements are what the editors generate the most and in most cases their content is also semantically correct. Better to wrap your property in a div with a class and adjust margins using CSS like you mention.
If you're using a version of EPiServer with TinyMCE editors, you can insert <br /> elements instead of <p> elements if you type shift-enter instead of enter. This should eliminate your margin problems.
More info at the link below:
http://www.tinymce.com/wiki.php/TinyMCE_FAQ#TinyMCE_produce_P_elements_on_enter.2Freturn_instead_of_BR_elements.3F
EDIT: My comment below answers his question better.
I discovered that while I can't remove the <p> tags from the source view (because it adds them back in automatically), if I replace them with <div> tags, it'll leave things alone. It does mean that I've got an extra <div> wrapping some elements that I don't really need, but at least a <div> doesn't add margins like a <p> does, so...good enough!