inputmode - HTML: Hypertext Markup Language
the inputmode global attribute is an enumerated attribute that hints at the type of data that might be entered by the user while editing the element or its contents.
... specifications specification status comment html living standardthe definition of 'inputmode' in that specification.

<input type="password"> - HTML: Hypertext Markup Language
value a domstring representing a password, or empty events change and input supported common attributes autocomplete, inputmode, maxlength, minlength, pattern, placeholder, readonly, required, and size idl attributes selectionstart, selectionend, selectiondirection, and value methods select(), setrangetext(), and setselectionrange() value the value attribute contains a domstring whose value is the current contents of the text editing control being used to enter the password.
... <label for="userpassword">password: </label> <input id="userpassword" type="password" required> <input type="submit" value="submit"> specifying an input mode if your recommended (or required) password syntax rules would benefit from an alternate text entry interface than the standard keyboard, you can use the inputmode attribute to request a specific one.
... <label for="pin">pin: </label> <input id="pin" type="password" inputmode="numeric"> setting length requirements as usual, you can use the minlength and maxlength attributes to establish minimum and maximum acceptable lengths for the password.
...And 3 more matches

IME handling guide
its mimestate, mhtmlinputtype, mhtmlinputinputmode and mactionhint are set at nsiwidget::setinputcontext() called.
... mhtmlinputinputmode the value is inputmode attribute value of the focused editor.
... this is set only when "dom.forms.inputmode" pref is true.

Experimental features in Firefox
nightly 53 yes developer edition 53 no beta 53 no release 53 no preference name dom.dialog_element.enabled global attribute: inputmode our implementation of the inputmode global attribute has been updated as per the whatwg spec (bug 1509527), but we still need to make other changes too, like making it available on contenteditable content.
... nightly 75 yes developer edition 75 no beta 75 no release 75 no preference name dom.forms.inputmode <link rel="preload"> the <link> element's rel attribute is intended to help provide performance gains by letting you download resources earlier in the page lifecycle, ensuring that they're available earlier and are less likely to block page rendering.

XForms Input Element - Archive of obsolete content
attributes ui common appearance - the value of this attribute gives a hint to the xforms processor as to which type of widget(s) to use to represent this control accesskey - used to specify the keyboard shortcut for focusing this control single-node binding special inputmode - not supported for this control incremental - supported.

XForms Secret Element - Archive of obsolete content
single-node binding special inputmode - isn't supported.

XForms Textarea Element - Archive of obsolete content
single-node binding special inputmode - isn't supported.

HTMLInputElement - Web APIs
inputmode provides a hint to browsers as to the type of virtual keyboard configuration to use when editing this element or its contents.

HTMLTextAreaElement - Web APIs
inputmode maxlength long: returns / sets the element's maxlength attribute, indicating the maximum number of characters the user can enter.

A simple RTCDataChannel sample - Web APIs
<div class="messagebox"> <label for="message">enter a message: <input type="text" name="message" id="message" placeholder="message text" inputmode="latin" size=60 maxlength=120 disabled> </label> <button id="sendbutton" name="sendbutton" class="buttonright" disabled> send </button> </div> finally, there's the little box into which we'll insert the messages.

HTML attribute reference - HTML: Hypertext Markup Language
inputmode <textarea>, contenteditable provides a hint as to the type of data that might be entered by the user while editing the element or its contents.

<input>: The Input (Form Input) element - HTML: Hypertext Markup Language
inputmode global value valid for all elements, it provides a hint to browsers as to the type of virtual keyboard configuration to use when editing this element or its contents.

Global attributes - HTML: Hypertext Markup Language
inputmode provides a hint to browsers as to the type of virtual keyboard configuration to use when editing this element or its contents.

HTML documentation index - HTML: Hypertext Markup Language
19 inputmode attribute, editing, forms, global attributes, html, input, reference, text, web, contenteditable, global, inputmode, text input the inputmode global attribute is an enumerated attribute that hints at the type of data that might be entered by the user while editing the element or its contents.