I'm seeking to emulate the on-clickable input forms that pops up when an user clicks on the blue bar as shown above. My experience with front-end development is limited so I don't know what to call these elements exactly, but let's say they are on-clickable input forms contained in a box, which can lead to other on-clickable forms like the date picker as shown.
How do I do this in Javascript? Preferably with AngularJS, since the app I'm working on uses that. I don't mind using JQuery though.
I'm not looking for detailed step-by-step instructions (which I don't mind), but hints to get me started on cloning these features.
Thanks.
The pop-ups you see are going to be HTML elements, probably <div>s. The page will use JavaScript to create event listeners on the bars to hide/show them when the bars are clicked/moused over. The "pop-ups" are really just like any other element in the page, but with a higher Z-index and using CSS positioning (most likely absolute) to make it appear as a pop-up. It also looks like they're using the CSS arrow trick to draw the speech bubble pointer, though it could also be accomplished with images.
If I were to develop this, I'd break it down into stages like this:
Get my pop-up into my HTML page, and make sure it's not appearing anywhere.
Make it show/hide when I wanted it to (either when the blue bar is clicked, or when the user mouses in/mouses out of the blue bar).
Make it show/hide where I want it to (near the blue bar)
Make it look better (work on the CSS and get the pointer to work properly)
Convert that work into a second-level popout. The second level is going to be the exact same technique, but maybe the CSS classes are going to be different so the second bubbles look different and have the pointer at a different position.
Of course, you don't have to develop this functionality yourself. There are also a number of jQuery plugins you could use, as well as Bootstrap's popover component.
Related
I am working on a CMS project where users can drag and drop different components(such as button, div, etc) from components menu on canvas area. Once they are happy about their layout then they click on button finish. What I want is when finish button is clicked then in popup they should see html and its appropriate CSS code.
How can I parse through those components and generate html, css and Javascript if necessary?
Are there any solutions available? I could not find any after googling.
maybe this approach is different but.
can you use of svg element? because with svg you can get positions for every element and then use for whatever you want (like get positions for example).
here some useful tutorials:
http://www.tutorialspoint.com/html5/html5_svg.htm
http://www.w3schools.com/html/html5_svg.asp (for some reason some people don't like this site)
Need your help.
I created a static semi-opaque banner which stays at the top of a website. When a user scrolls the website the entire container objects goes underneath the banner. I want all the objects (images, text..etc) getting blury effect as it goes underneath the banner.
Thanks
The only way you're going to be able to do this is by getting fancy with some CSS and javascript. CSS doesn't support blur directly, but you can emulate it with text-shadow. Images can also be blurred with a little jquery/css/javascript magic, but will be problematic because you can't partially blur an image (what happens when only part of the image is under the banner?). It could probably be done by layering your images and keeping track of their position on screen, but all of this seems like a lot of work for a very small return.
So, assuming you've decided to give all of this a shot, you're going to have to use javascript to determine which parts of the page have passed under the banner and apply the style to those parts. The difficulty of this task will scale with the complexity of your page layout. In a best case scenario, your banner and content container are both 100% the width of the html body. At this point, it would be fairly trivial to write some kind of scanner that traverses the dom every time you page scroll to find elements that the blur should be applied to. However, best-case-scenario is rarely the case at hand, at which point I'd recommend abandoning the effort to pursue something with a greater ROI.
This isn't possible with CSS nor jQuery. You might be able to do something with IE's filters, however that's IE only (of course), and will invalidate your CSS.
Currently, there is no way to do this, although something might come along in CSS 4 or something.
The Chrome nightly builds support some filters, however there isn't an alpha blur filter (yet, at least).
I'm trying to work out how to do "type-writer scrolling" in JavaScript for a textarea in a web-page, but I'm having no luck. Essentially, what I'm trying to do is make a textarea that, when a new line is created, scrolls the document automatically so as to keep the new line in the same position as the previous line. I've seen something similar in desktop applications such as Write Monkey, but can't work out how to do it in JavaScript.
Thanks in advance for any suggestions!
Have a look at this page http://www.mediacollege.com/internet/javascript/page/scroll.html it shows basic scrolling methods
You could either scroll down by the height of your line (line-height css property) or scrollTo a specific point on the page
I have achieved something close to this, automatically expanding a textarea the way it is done on Facebook, but that was based on a conservative estimate, considering font size, box width, etc, to determine how many lines have probably wrapped. What you are describing is more exact -- down to the character.
The challenge here lies in knowing exactly how many lines are currently in the textarea and I can think of no way to do this. When you say, "a new line is created," you're talking about automatic wrapping and there is no way to read that or to trigger from it. It is part of the browser's hard-coded interpretation of many things, including your CSS.
If you went through with the whole typewriter theme, you would have a bell and the user would hit RETURN when they needed to, then you'd have your cue to scroll, but that sounds like a sure way to remind people why we no longer use typewriters.
Sorry maybe I was not clear in my original question below...
What I am looking for is a way to get a popup to move inside the windows viewable area (not actually create the popup itself). As seen in Google image's when you mouseover a image at the edge of the screen, somehow (which is what I want to know), the script detects that there is not enough space for the popup to appear in the window, so it pushes it inside the viewable range.
So I want to know how this is determined and calculated.
How can I use javascript to make sure
a popup div fits inside the window
when it appears?
A good example is google's image
search. When a image does not fit in
the window (either it is the far right
most or bottom most image), somehow it
is pushed inside when the popup is
opened with the mouseover event. How
is this calculated and how can I
create a script to calculate this.
you can use already build pop-up box/overlay window js library. Use jQuery js framework and go for any plug-in that provide you the same feature. I recommend you to use facybox http://fancybox.net/ with jQuery which makes this very easy.
There's no "use this code in your JS file" fix for this but the general idea is to reposition and override the offsets of the element in question, taking into account the viewport's bounds (to state the obvious).
For example, a couple of good tooltip plugins for jQuery support this behaviour, such as bassistance's jQuery Tooltip Plugin and also qTip. It might be worth digging into their source and seeing how they handle this.
This is one of the best i've come across http://gettopup.com/
I have seen a feature on a site I would like to emulate. I have intermediate php skill but am a novice javascript user. The feature is the site content displayed in divs which can be moved around on the screen and their position saved using cookies. This site: [url]www.nowgamer.com[/url] is where I saw it (latest podcasts, videos, reviews etc with filter)
How would I go about achieving this through javscript? I want to know how to connect javascript with the cookie so that the positions of the square divs are saved, as are the preferences of the content filter on each div. How can I achieve this?
Would this be a big job? Thank you for any help, I am working independently on this in my spare time so your contribution with advice is my lifeline.
As Zoidberg commented, its easy with JQuery or Yui, or any other javascript library that provides drag & drop functionality. They are almost easy to configure, checking at demo they give. They also expose certain events like beforeDrag, afterDrag, onDrop, etc. where you can fire a simple js function check the elements' dropped position store it in cookies. For setting cookies, there are world of code on internet.
Also, you might want to check floating absolute/relative positioning css, if your DOM divs are going to be floating around the page.
GoodLuck.
simplyharsh has the proper answer, but I'd like to expand on it a bit:
The basics of a draggable div aren't too complicated. You attach an onclick handler to initiate the dragging. Internally, that's accomplished by changing the div's CSS so it's position: absolute. Then you start monitoring mouse movements (basically onmousemove) and changing the div's top and left according to the movements you've captured.
Dropping is a bit more complicated. You can always just release the mouse and leave the div wherever you ended up moving it, but that leaves it absolutely positioned and therefore outside of normal document flow. But dropping it "inside" some other element means a lot of prep work.
Because of how mouseover/mouseout/mouseenter events work, they WON'T work while you're dragging an element - you've got your draggable div under the mouse at all times, so there's no mouseenter/leave events being fired on the rest of the page. jquery/mootools and the like work around it letting you specify drop zones. The locations/sizes of these zones are precalculated and as you're dragging. Then, as you're dragging, the dragged object's position is compared to these precalculated drop zone locations for every move event. If you "enter" one of those zones, then internally the libraries fire their mouseenter/mouseleave/mouseover events to simulate an actual mouseenter/leave/over event having occured.
If you drop inside a zone, the div gets attached as a child of that zone. If you drop outside, then it will usually "snap back" to where it was when you initiated the drag.
Resizing is somewhat similar, except you're adjusting height and width instead of top and left.