I would like to implement some "Drag-select" functionality into a project of mine but i'm unsure how to implement it.
The creation of the selection area is not a problem, it's the capturing of elements within the area itself which is confusing me.
A jQuery example found here.
Selectable Demo
If you can use jquery there are some plugins that do this operation. Anyway you can check if the position of the element is contained into the selection area coordinates and, if it is, you select it.
Script.aculo.us has a nice implementation of drag-n-drop, but then you have to include this rather large library. Or you could investigate how they done it for that matter, since its open-source.
Related
I'm trying to create a multi-leveled list that is sortable by drag and drop. The user can grab an element and move it up and down the tree or drop it into other elements and have it become a child.
Are there off the shelf JS solutions? The jQuery sortable/draggable worked fine for a single level list but less so on nested solutions.
You can also try https://github.com/dbushell/Nestable (demo: http://dbushell.github.io/Nestable/).
Works with mouse and touch and this plugin is compatible with jQuery and Zepto.
I am using johnny's jquery-sortable plugin, which can be found here http://johnny.github.io/jquery-sortable.
It seems to work pretty well.
I was also trying to get it to send back the sorted structure of the list via AJAX. See this topic if you want to see my working solution, as the official documentation on serialization seemed slightly unsatisfactory (at least for nested lists).
Hope this is helpful.
So while you can use https://github.com/dbushell/Nestable or http://johnny.github.io/jquery-sortable
You probably want to move to something like React these days so you can use packages like this: https://www.npmjs.com/package/react-drag-sortable
Try not to use jQuery for this sort of thing any more. By the time you have drag/drop interfaces you have the makings of a webapp, not a web page, and you're going the wrong direction.
I have came to see a package named react-nestable and it works to create nested drag and drop. I am putting a link for that package below - react-nestable npm
I'm looking at Rangy (http://code.google.com/p/rangy/) and it seems it has a bunch of DOM utilities but I don't understand them without examples. So I'm turning to SO with my ideas and hopefully you guys can show me how this can be done:
What I need to do with Rangy is use it to find the position and dimensions of the selection. I want to get the frame or Rect of the selection, whether relative to the document or parent element. Then I can position my callout accordingly.
I believe the demo that comes with Rangy already illustrates what you want. specifically http://rangy.googlecode.com/svn/trunk/demos/position.html inside showSelectionPosition function
Considering the fact that selection may be spread across multiple elements, it'd be best to use the coordinates of either startSelEl or endSelEl to anchor your callout to the beginning or end of a selection.
There is an embryonic, unreleased Rangy module I wrote for getting pixel coordinates of a selection or range. Unfortunately the difficulty of getting this working properly in all browsers and all situations has put me off completing it and I have essentially abandoned it. However, if you add a bit more detail about what you're trying to do I may be able to suggest something.
I've been seeing a bunch of website with something called tile view (I think).
The idea is you have multiple element on a html page with different width and height.
And you have a javascript that will organize randomly each element next to each other to maximize the number of element you can see at once.
An example is http://www.clipboard.com/feeds (You may have to select tile view next to the search bar)
Is there a jquery plugin already? or a native javascript that do something similar?
If not what kind of algorithm would you use to do it?
Is there a jquery plugin already?
Yes, there is a jQuery for that "already".
or a native javascript that do something similar?
Inside that jQuery there is "native" javascript that does exactly that.
If not what kind of algorithm would you use to do it?
It's explained IIRC, was a blog post outlining how it works. You would need to look that up however.
jQuery Masonry (this is probably exactly what you're looking for)
jQuery Distribute Plugin
I'm looking for a javascript/css tooltip that can do the following:
Shows up when you hover over some page element (such as a help icon.)
Repositions itself based on the browser window (for example if it's on the far right of the page, it will show itself to the left of the page element, otherwise it'll show to the right of it. That way it won't go off of the page.)
You can hover over the tooltip and it won't disappear. This way you can select text or click on a hyperlink within the tooltip.
I'm using dojo but their dijit tooltip seems to be very inflexible, as it can only spawn off of another dijit element, most commonly a dijit button. I'd rather not having to reference a whole other javascript framework like jquery or prototype so hopefully someone has a way to do this using just one basic script.
Unfortunately for you, the tooltip style plugins available for Dojo are nowhere near the other frameworks (namely: jQuery). Because of this, you have three options:
Reinvent the wheel. Take what you learned from other tooltip scripts and build your own from scratch. This option takes the longest development time (and in the inevitable maintenance of cross-browser bugs).
Extend an existing plugin. You can take a current tooltip plugin for dojo (or perhaps a library agnostic plugin) and extend its functionality by adding your own scripts to it.
Use jQuery. This has already been said twice by others, but let me say it again. jQuery has a thriving plugin ecosystem, and if development/maintenance times are truly important to you, then jQuery should definitely be considered.
Again, assuming that you don't mind using jQuery (it's awesome!!) I played around with a few tooltips and found this one the best: http://flowplayer.org/tools/tooltip/index.html
Extensible with good documentation. Check out the 'position' config option and see if that does what you need.
Good luck!
If you do decide to use jQuery, qTip is a nice jQuery plugin that is very configurable and will probably meet your needs. http://craigsworks.com/projects/qtip/
I have been using several jQuery plugins, including jQuery TOOLS, Beauty Tips and Cluetip. I think all three meet your requirements.
If instead of a black box you want to know what's going on, I recommend this tutorial:
http://www.sohtanaka.com/web-design/simple-tooltip-w-jquery-css/
(and take a look at the comments section)
The dijit.Tooltip documentation gives two simple examples, the first attaching a tooltip to simple DOM nodes seems to meet your needs. The second happens to wire up the tooltip to another dijit-based widget (a button). Note that the property connectId takes a dom node reference or string id. Note that dijit may be used either programmatically or using a markup-based declaration.
Different tooltip implementations may have different functionality. Among other things, dijit.Tooltip provides ARIA accessibility for screen readers, keyboard access, bidi enablement, and automatic positioning around a node but within the boundaries of the screen.
I want to build a dynamic floating window with close button at corner. Is it possible, and also i want to add some content dynamically into that window.
Please help me.. It should be in javascript.. Better without AJAX..
Thanks in Advance
jQuery UI has an awesome floating window. What's cool about the jQuery UI version is that you can also package it with the UI theme manager, which means less time styling.
Check it out here : jQuery UI Dialog examples
All it takes is creating a container (probably a div), and one line of code. Something like this:
<div id="example">I'm in a dialog!</div>
$("#example").dialog();
Here's the documentation: jQuery UI Dialog documentation
What you are looking for is called a "lightbox" technique.
Here is a comparison of many lightbox techniques.
Many exist out there on the web, here are some for jquery and prototype libs:
Jquery: Thickbox, Lightbox
Plugin
Prototype: Lightbox 2,
Leightbox
Also, check out the
wikipedia article on lightbox.
My favourite has always been Scriptaculous, which lets you do all sorts of interesting visual things. The new kids on the block use jquery. One of these two should do the trick for you.
There are lots of samples on both sites that do what you want.
Well at the most basic just create a div and inject content by setting innerHTML to an HTML string. Positioning it can be tricky since you have to worry about scrolling and different browsers have different means of controlling this. You may also want to position relative to some originating element in the page which you can do by digging the element and it's position out of the event object your javascript function receives when the originating element is clicked.
Google hover popup - first link is http://www.calcaria.net/javascript/2006/09/javascript-hover-over-html-popup.html
There are lots of different libraries out there for making windows. I have found that Livepipes has a very well rounded and customizable javascript library that includes a window control along with a variety of others. http://livepipe.net/control
One that I haven't used but looks promising, is prototypeui. It is based on the prototype and scriptaculous javascript libraries. jqModal is another I have used that is based on JQuery.
take look at fancybox http://fancybox.net/