accessibility - Why should HTML validators care about two inputs within a label, if one of them is of type hidden? -


consider following markup:

<label>   <input type="hidden" name="likes_bacon" value="no" />   <input type="checkbox" name="likes_bacon" value="yes" />   bacon </label>

the w3c html validator raise error against markup label contains more 1 input, technically invalid.

my question 2 fold: why should validator care, since first hidden? user agents (including screen readers - i've checked) not make indication hidden field exists, , it's quite common/useful frameworks render checkboxes accompanying hidden input same name in order pass through default value in form submission in cases form submitted checkbox unchecked. hidden input immutable since not really user-editable form control.

secondly, aside possibility of error showing in browser consoles , failing validation, is there harm in doing this? can't think of single reason other "you're not supposed to"!

i guess leads on wider point perhaps input type="hidden" misnomer, not input @ all!

i'm aware it's entirely possible move inputs outside of label , reference checkbox id for attribute.

loosely related: two input fields inside 1 label

why w3c validator says not valid? because not valid! plain , simple. html specification says:

the label element may contain @ one descendant input element, button element, select element, or textarea element.

since spec says invalid, validator invalid.

now, reason why specification says because clicking on label focuses interactive element associated it. when element has focus can receive keyboard input.

by unspoken user interface standards, can type in one text box @ time. since can type in 1 text box, one form control needs receive keyboard input @ time. because of that, there one interactive html element focus @ time.

there no point focusing 2 elements @ once label, since there can 1 receiving keyboard input.

there no point putting hidden input inside label, way. since hidden inputs not manipulated user, there no point giving keyboard input them.


Comments

Post a Comment

Popular posts from this blog

assembly - 8086 TASM: Illegal Indexing Mode -

this question has answer here: illegal use of register in indirect addressing 1 answer i writing 8086 assembly program needs compile through tasm v3.1. running error can not seem fix. my data segment has following set purposes of keyboard input: parao label byte maxo db 5 acto db ? datao db 5 dup('$') what trying first character entered, first byte of datao: lea dx, datao mov bl, [dx] however, when attempt compile, error: **error** h5.asm(152) illegal indexing mode line 152 "mov bl, [dx]" any appreciated. if matters, running tasm through dosbox (my laptop running 64-bit win7) google hasn't come helpful answers. can post entirety of code if necessary. pretty sure reason can't use dx register pointer. try instead using [si], [di] or [bx]: lea bx, data0 mov al, [bx]
Read more

Java, LWJGL, OpenGL 1.1, decoding BufferedImage to Bytebuffer and binding to OpenGL across classes -

i've been attempting solve problem without luck. have 4 classes, main class, object class, sprite class , image loader class. i'm attempting load png using image loader , using method found here: http://www.java-gaming.org/topics/bufferedimage-to-lwjgl-texture/25516/msg/220280/view.html#msg220280 convert bytebuffer, , bind opengl. the image in it's own seperate resource folder. should being drawn this: ( http://i.imgur.com/j8gbu4c.png ) (32x32), i'm seeing white box has dimensions of image, not actual texture. if has idea of go fix i'd appreciate it. i'm new opengl , looking avoid using external library in order learn how actual code works. thanks. updated! to following, implemented suggestion provided vallentin, quad taking color of first pixel in image. i've attempted implementing image loader provided c.s here . i'm receiving error: javax.imageio.iioexception: error reading png image data @ com.sun.imageio.plugins.png.pngimagereader.r...
Read more

javascript - addthis share facebook and google+ url -

i attempting use addthis create simple url shares whichever current page user on when click share button. of right now, have twitter working. when user clicks, able see url populated in tweet box. when user clicks facebook or google+, url doesn't seem show in share box. <ul class="addthis_toolbox addthis_default_style "> <li><a class="addthis_button_facebook"><img src="/img/facebook-social.png" width="20" height="20" border="0" alt="share" /></a></li> <li><a class="addthis_button_twitter"><img src="/img/twitter-social.png" width="20" height="20" border="0" alt="share" /></a></li> <li><a class="addthis_button_google_plusone_share"><img src="/img/google-social.png" width="20" height="20" border="0" alt="s...
Read more