You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
3.3 KiB
JavaScript
110 lines
3.3 KiB
JavaScript
define("dijit/_base/wai", [
|
|
"dojo/dom-attr", // domAttr.attr
|
|
"dojo/_base/lang", // lang.mixin
|
|
"../main", // export symbols to dijit
|
|
"../hccss" // not using this module directly, but loading it sets CSS flag on <html>
|
|
], function(domAttr, lang, dijit){
|
|
|
|
// module:
|
|
// dijit/_base/wai
|
|
|
|
var exports = {
|
|
// summary:
|
|
// Deprecated methods for setting/getting wai roles and states.
|
|
// New code should call setAttribute()/getAttribute() directly.
|
|
//
|
|
// Also loads hccss to apply dj_a11y class to root node if machine is in high-contrast mode.
|
|
|
|
hasWaiRole: function(/*Element*/ elem, /*String?*/ role){
|
|
// summary:
|
|
// Determines if an element has a particular role.
|
|
// returns:
|
|
// True if elem has the specific role attribute and false if not.
|
|
// For backwards compatibility if role parameter not provided,
|
|
// returns true if has a role
|
|
var waiRole = this.getWaiRole(elem);
|
|
return role ? (waiRole.indexOf(role) > -1) : (waiRole.length > 0);
|
|
},
|
|
|
|
getWaiRole: function(/*Element*/ elem){
|
|
// summary:
|
|
// Gets the role for an element (which should be a wai role).
|
|
// returns:
|
|
// The role of elem or an empty string if elem
|
|
// does not have a role.
|
|
return lang.trim((domAttr.get(elem, "role") || "").replace("wairole:",""));
|
|
},
|
|
|
|
setWaiRole: function(/*Element*/ elem, /*String*/ role){
|
|
// summary:
|
|
// Sets the role on an element.
|
|
// description:
|
|
// Replace existing role attribute with new role.
|
|
|
|
domAttr.set(elem, "role", role);
|
|
},
|
|
|
|
removeWaiRole: function(/*Element*/ elem, /*String*/ role){
|
|
// summary:
|
|
// Removes the specified role from an element.
|
|
// Removes role attribute if no specific role provided (for backwards compat.)
|
|
|
|
var roleValue = domAttr.get(elem, "role");
|
|
if(!roleValue){ return; }
|
|
if(role){
|
|
var t = lang.trim((" " + roleValue + " ").replace(" " + role + " ", " "));
|
|
domAttr.set(elem, "role", t);
|
|
}else{
|
|
elem.removeAttribute("role");
|
|
}
|
|
},
|
|
|
|
hasWaiState: function(/*Element*/ elem, /*String*/ state){
|
|
// summary:
|
|
// Determines if an element has a given state.
|
|
// description:
|
|
// Checks for an attribute called "aria-"+state.
|
|
// returns:
|
|
// true if elem has a value for the given state and
|
|
// false if it does not.
|
|
|
|
return elem.hasAttribute ? elem.hasAttribute("aria-"+state) : !!elem.getAttribute("aria-"+state);
|
|
},
|
|
|
|
getWaiState: function(/*Element*/ elem, /*String*/ state){
|
|
// summary:
|
|
// Gets the value of a state on an element.
|
|
// description:
|
|
// Checks for an attribute called "aria-"+state.
|
|
// returns:
|
|
// The value of the requested state on elem
|
|
// or an empty string if elem has no value for state.
|
|
|
|
return elem.getAttribute("aria-"+state) || "";
|
|
},
|
|
|
|
setWaiState: function(/*Element*/ elem, /*String*/ state, /*String*/ value){
|
|
// summary:
|
|
// Sets a state on an element.
|
|
// description:
|
|
// Sets an attribute called "aria-"+state.
|
|
|
|
elem.setAttribute("aria-"+state, value);
|
|
},
|
|
|
|
removeWaiState: function(/*Element*/ elem, /*String*/ state){
|
|
// summary:
|
|
// Removes a state from an element.
|
|
// description:
|
|
// Sets an attribute called "aria-"+state.
|
|
|
|
elem.removeAttribute("aria-"+state);
|
|
}
|
|
};
|
|
|
|
lang.mixin(dijit, exports);
|
|
|
|
/*===== return exports; =====*/
|
|
return dijit; // for back compat :-(
|
|
});
|