Namespaced attributes in SVG (embedded in HTML document) - css

Using d3.js I want to insert attributes of a specific namespace into SVG elements (embedded in a HTML5 document), more precisely that.
So I have the following JavaScript:
d3.select("body")
.append("svg")
.attr({width: 100, height: 100})
.append("rect")
.attr({width: 100, height: 100})
.attr("myns:foo", "bar");
CSS:
rect[foo] {
fill: red;
}
rect[myns\:foo] {
fill: green;
}
Results in:
<html>
<head>…</head>
<body>
<svg width="100" height="100">
<rect width="100" height="100" foo="bar"></rect>
</svg>
</body>
</html>
see JSFiddle
I expected the generated rectangle to be green, but instead it is red. Also I wonder why the attribute is not myns:foo.
I also experimented with d3.ns.prefix (until I read that) and the CSS3 #namespace, however without success.
So can you explain to me why the code above does not work as intended and could you provide an alternative?

Related

I can't get any custom url cursor to work

This is my first bug so be gentle. I just can't get a custom url cursor to work. When using a standard one like "pointer" everything works, but when using a url, either local or remote it just does nothing.
I've come across similar issues being solved here but none of them are working for me (checking the sizing, file type, url location...)
My goal was for it to appear when hovering an svg image. I've tried styling it inside the svg file itself, it works fine for "pointer" but not for "url".
I've tried adding the svg file inside an tag, and styling the cursor inside it, works with "pointer", doesn't work with "url".
Tested on different browsers, none of them respond to it.
What am I doing wrong? See below some of the stuff I've tried:
<svg ...>
<style>
svg {cursor: url(01ssss3326.cur);}
</style>
</svg>
doesn't work
<svg ...>
<style>
svg {cursor: url(http://www.rw-designer.com/cursor-extern.php?id=107471);}
</style>
</svg>
doesn't work
<body>
<img src="prettyinternet.svg" alt="" style="cursor: url(http://www.rw-designer.com/cursor-extern.php?id=109070);">
</body>
doesn't work
<body>
<img src="prettyinternet.svg" alt="" style="cursor: pointer;">
</body>
this works
<svg ...>
<style>
svg {cursor: pointer;}
</style>
</svg>
this works too
Is that working in this way? I guess you are just missing ""
<svg ...>
<style>
svg {cursor: url("01ssss3326.cur");}
</style>
</svg>
This is another example which I used in one of my project and it works. I am passing it in my css
cursor:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='32' height='38' viewport='0 0 100 100' style='fill:black;font-size:19px;'><text y='50%'>🚀</text></svg>") 16 0,auto;

CSS selector specifity with SVG inside <object>

I have the following code:
<body class="active">
<object data="css/svg/circle.svg" type="image/svg+xml">
<p> Your browser doesn't support SVG.</p>
</object>
</body>
The SVG is simple like:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?xml-stylesheet href="../style.css" type="text/css"?>
<svg id="circle" height="100" width="100">
<circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" />
</svg>
The active class on <body> is toggled through javascript. Then I have the following CSS:
#circle {
opacity: 1;
}
.active #circle {
opacity: 0.5;
}
The thing is, if I add the SVG with the <object> tag, the second selector, active #circle, doesn't work. If I put the SVG inline then it works. Note that I am including the CSS on the SVG file as well.
I would like to use the <object> because the real SVG isn't really so simple so my html would get messy. Is there a way to achieve that?
Thanks in advance,
Here is a few ways you might could use
Leave object empty and load it as an inline svg using ajax, on page load, ...
HTML
<object data="" data-svg="path-2-image.svg" type="image/svg+xml">
<p> Your browser doesn't support SVG.</p>
</object>
...or why not into a plain element, like a div
<div data-svg="path-2-image.svg">
</div>
Script (concept)
<script>
// on load/dom ready
var trg = document.querySelector('[data-svg]');
var svgpath = trg.getAttribute('data-svg');
call-your-SVGloader-function(obj,svg);
</script>
Note: I also think you need to use trg.innerHTML = ... for the object as you do with the div
Was also thinking of using an image, though haven't tried if this actually works
<img src="path-2-image.svg" alt="">

SVG: CSS properties are not applied

I have a HTML 5 file containing a SVG element. Also there are some styles defined in a CSS file (imported in the html file correctly), e.g.:
rect.cell-border {
stroke: #000;
stroke-width:1.3px;
}
One element in the SVG looks like this:
<rect class="cell cell-border" width="256" height="256" style="fill-opacity: 0.5;"></rect>
Problem: Besides the inline CSS properties this rect element does not get the properties by cell-border. I have absolutely no idea why. In general the CSS file works, because other (non SVG but pure HTML) elements are styled correctly.
I generate the SVG elements with D3.
It works in this fiddle: http://jsfiddle.net/j0g8rnqu/1/
This means that your css and the svg are correct. There can only be something wrong with your binding of the css file. If you do it the standard way, it should work. Here is the most simple case:
file test.html
<!doctype html>
<html>
<head>
<link rel="stylesheet" href="svg-test.css">
</head>
<body>
<svg xmlns="http://www.w3.org/2000/svg" version="1.1" overflow="visible">
<rect class="cell cell-border" width="256" height="256" style="fill: #79a;"></rect>
</svg>
</body>
</html>
file svg-test.css
rect.cell-border {
stroke: #000;
stroke-width:1.3px;
}
Note that I added overflow="hidden"to the svg to ensure that the border does not get cropped.
Seems to work for me. The first rect has the class and therefore the stroke, the bottom does not.
rect.cell-border {
stroke: #000;
stroke-width:1.3px;
}
<svg height="258" width="258" viewBox="-1 -1 258 258">
<rect class="cell cell-border" width="256" height="256" style="fill-opacity: 0.5;"></rect>
</svg>
<svg height="258" width="258" viewBox="-1 -1 258 258">
<rect width="256" height="256" style="fill-opacity: 0.5;"></rect>
</svg>
Okay the solution that finally worked was to include the external css file in a different way:
<style>
#import url(css/MatrixVisualization.css)
</style>
Rather than the regular way. Another possibility would be to use embedded css declarations.

SVG - Accessing individual nodes on xlink:href external source

I was looking at Chris Coier's SVG tricks on CSS-tricks.com and also recently saw him at a conference where he talked about the powers of SVGs and how you can keep all assets in one external svg file.
<svg xmlns="http://www.w3.org/2000/svg" style="display: none;">
<symbol id="beaker" viewBox="214.7 0 182.6 792">
<!-- <path>s and whatever other shapes in here -->
</symbol>
<symbol id="shape-icon-2" viewBox="0 26 100 48">
<!-- <path>s and whatever other shapes in here -->
</symbol>
</svg>
Then, you could just use it like this:
<svg class="icon">
<use xlink:href="#shape-icon-1" />
</svg>
<svg class="icon">
<use xlink:href="#shape-icon-2" />
</svg>
Sounds great! BUT, I want to be able to access individual nodes in each symbol and altering them with CSS like I normally would if the SVG was inline in the HTMl.
Take a look at this CodePen:
http://codepen.io/chriscoyier/pen/Hwcxp
I thought I could do this, but I can't get it to work:
.icon path{
fill: green;
}
This does, but this alters the actual source svg
#beaker path {
fill: green;
}
What I want to do is reuse a graphical element in a grid. And on hover, alter a node in the svg. But only on the node in that particular parent. Not all of them.
Firefox does some unknown thing where you can style it this way.
edit:
To be more precise:
Firefox seems to turn that symbol kinda into in the DOM.
http://codepen.io/Type-Style/pen/EaGbam
.hoverME:hover path, .hoverME:hover circle {
fill: red;
}
This also works with an external file. (Unfortunatly it does not with crossDomain Files)
"But you can insert just the class name of the path. That will work."
I mean as long as you stay within the SVG with your selectors it will work.
circle:hover, path:hover {
fill: red;
}

Precise SVG mouseovers in CSS and HTML

I have a geometic shape that I would like to fill in, pictured
When the mouse is hovered over each area, I would like it to fill in, pictured here.
Unfortunately, when I add in the rest of the shapes, my code does not work, as my browser is giving each shape a bounding box that covers the rest of the shapes. How can I make the mouseover shape of my svg precise and not a box?
Here is my HTML code:
<object data="images/logo/middle.svg"
type="image/svg+xml" class="middlesvg hoversvg" > <!-- only the middle is shown for brevity -->
</object>
CSS
.hoversvg
{
opacity: 0;
}
.hoversvg:hover{
opacity: 1;
}
You could do it straight in the SVG, no CSS required.
Draw each segment as its own polygon or path, and add a set attributeName tag into it:
<path … id="path1"><set attributeName="opacity" from="0" to="1.0" begin="path1.mouseover" end="path1.mouseout"/></path>
<path … id="path1"><set attributeName="opacity" from="0" to="1.0" begin="path2.mouseover" end="path2.mouseout"/></path>
etc.
This page has a bit more detail http://www.ibm.com/developerworks/library/x-svgint/ (scroll down to Events)
You'd need to implement the hovering within the middle.svg file. That way you can target the specific shape you want to change on hover.
Give each <path> in the SVG an id, like:
<svg xmlns="http://www.w3.org/2000/svg">
<path id="first-path"/>
<path id="second-path"/>
</svg>
Then you can select the individual paths in JS (e.g. document.querySelector('#first-path')) and do whatever you want with it.
To fill in the inside of the path, you could do something like this in your CSS:
#first-path {
cursor: pointer;
pointer-events: fill;
}
#first-path:hover {
fill: rgba(255,255,255,0.5);
}

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