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Unify role type and element interactivity API

Browse Source
pull/8167/head
Nguyen Tran 4 years ago
parent 6c6d1d1113
commit 14a3131e35
2 changed files with 49 additions and 53 deletions
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18
src/compiler/compile/nodes/Element.ts
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@ -24,14 +24,13 @@ import { Literal } from 'estree';
import compiler_warnings from '../compiler_warnings';
import compiler_errors from '../compiler_errors';
import { ARIARoleDefintionKey, roles, aria, ARIAPropertyDefinition, ARIAProperty } from 'aria-query';
import { is_interactive_element, is_non_interactive_element, is_non_interactive_roles, is_presentation_role, is_interactive_roles, is_hidden_from_screen_reader, is_semantic_role_element } from '../utils/a11y';
import { role_type, RoleType, element_interactivity, ElementInteractivity, is_presentation_role, is_hidden_from_screen_reader, is_semantic_role_element } from '../utils/a11y';
const aria_attributes = 'activedescendant atomic autocomplete busy checked colcount colindex colspan controls current describedby description details disabled dropeffect errormessage expanded flowto grabbed haspopup hidden invalid keyshortcuts label labelledby level live modal multiline multiselectable orientation owns placeholder posinset pressed readonly relevant required roledescription rowcount rowindex rowspan selected setsize sort valuemax valuemin valuenow valuetext'.split(' ');
const aria_attribute_set = new Set(aria_attributes);
const aria_roles = roles.keys();
const aria_role_set = new Set(aria_roles);
const aria_role_abstract_set = new Set(roles.keys().filter(role => roles.get(role).abstract));
const a11y_required_attributes = {
a: ['href'],
@ -497,7 +496,7 @@ export default class Element extends Node {
if (typeof value === 'string') {
value.split(regex_any_repeated_whitespaces).forEach((current_role: ARIARoleDefintionKey) => {
if (current_role && aria_role_abstract_set.has(current_role)) {
if (current_role && role_type(current_role) === RoleType.Abstract) {
component.warn(attribute, compiler_warnings.a11y_no_abstract_role(current_role));
} else if (current_role && !aria_role_set.has(current_role)) {
const match = fuzzymatch(current_role, aria_roles);
@ -534,12 +533,14 @@ export default class Element extends Node {
}
// no-interactive-element-to-noninteractive-role
if (is_interactive_element(this.name, attribute_map) && (is_non_interactive_roles(current_role) || is_presentation_role(current_role))) {
if (element_interactivity(this.name, attribute_map) === ElementInteractivity.Interactive
&& (role_type(current_role) === RoleType.NonInteractive || is_presentation_role(current_role))) {
component.warn(this, compiler_warnings.a11y_no_interactive_element_to_noninteractive_role(current_role, this.name));
}
// no-noninteractive-element-to-interactive-role
if (is_non_interactive_element(this.name, attribute_map) && is_interactive_roles(current_role)) {
if (element_interactivity(this.name, attribute_map) === ElementInteractivity.NonInteractive
&& role_type(current_role) === RoleType.Interactive) {
component.warn(this, compiler_warnings.a11y_no_noninteractive_element_to_interactive_role(current_role, this.name));
}
});
@ -579,7 +580,7 @@ export default class Element extends Node {
if (
!is_hidden_from_screen_reader(this.name, attribute_map) &&
(!role || is_non_presentation_role) &&
!is_interactive_element(this.name, attribute_map) &&
element_interactivity(this.name, attribute_map) !== ElementInteractivity.Interactive &&
!this.attributes.find(attr => attr.is_spread)
) {
const has_key_event =
@ -597,7 +598,10 @@ export default class Element extends Node {
}
// no-noninteractive-tabindex
if (!is_interactive_element(this.name, attribute_map) && !is_interactive_roles(attribute_map.get('role')?.get_static_value() as ARIARoleDefintionKey)) {
if (element_interactivity(this.name, attribute_map) !== ElementInteractivity.Interactive
&& role_type(
attribute_map.get('role')?.get_static_value() as ARIARoleDefintionKey
) !== RoleType.Interactive) {
const tab_index = attribute_map.get('tabindex');
if (tab_index && (!tab_index.is_static || Number(tab_index.get_static_value()) >= 0)) {
component.warn(this, compiler_warnings.a11y_no_noninteractive_tabindex);

74
src/compiler/compile/utils/a11y.ts
Unescape View File

@ -7,7 +7,9 @@ import {
import { AXObjects, AXObjectRoles, elementAXObjects } from 'axobject-query';
import Attribute from '../nodes/Attribute';
const non_abstract_roles = [...roles_map.keys()].filter((name) => !roles_map.get(name).abstract && name !== 'generic');
const aria_roles = roles_map.keys();
const abstract_roles = new Set(aria_roles.filter(role => roles_map.get(role).abstract));
const non_abstract_roles = aria_roles.filter((name) => !abstract_roles.has(name));
const non_interactive_roles = new Set(
non_abstract_roles
@ -32,12 +34,23 @@ const interactive_roles = new Set(
non_abstract_roles.filter((name) => !non_interactive_roles.has(name))
);
export function is_non_interactive_roles(role: ARIARoleDefintionKey) {
return non_interactive_roles.has(role);
export enum RoleType {
Interactive = 'interactive',
NonInteractive = 'non-interactive',
Abstract = 'abstract',
Invalid = 'invalid',
}
export function is_interactive_roles(role: ARIARoleDefintionKey) {
return interactive_roles.has(role);
export function role_type(role: ARIARoleDefintionKey): RoleType {
if (interactive_roles.has(role)) {
return RoleType.Interactive;
} else if (non_interactive_roles.has(role)) {
return RoleType.NonInteractive;
} else if (abstract_roles.has(role)) {
return RoleType.Abstract;
} else {
return RoleType.Invalid;
}
}
const presentation_roles = new Set(['presentation', 'none']);
@ -65,7 +78,7 @@ export function is_hidden_from_screen_reader(tag_name: string, attribute_map: Ma
const non_interactive_element_role_schemas: ARIARoleRelationConcept[] = [];
elementRoles.entries().forEach(([schema, roles]) => {
if ([...roles].every((role) => non_interactive_roles.has(role))) {
if ([...roles].every((role) => role !== 'generic' && non_interactive_roles.has(role))) {
non_interactive_element_role_schemas.push(schema);
}
});
@ -102,7 +115,6 @@ elementAXObjects.entries().forEach(([schema, ax_object]) => {
}
});
function match_schema(
schema: ARIARoleRelationConcept,
tag_name: string,
@ -123,24 +135,31 @@ function match_schema(
});
}
export function is_interactive_element(
export enum ElementInteractivity {
Interactive = 'interactive',
NonInteractive = 'non-interactive',
Static = 'static',
}
export function element_interactivity(
tag_name: string,
attribute_map: Map<string, Attribute>
): boolean {
): ElementInteractivity {
if (
interactive_element_role_schemas.some((schema) =>
match_schema(schema, tag_name, attribute_map)
)
) {
return true;
return ElementInteractivity.Interactive;
}
if (
tag_name !== 'header' &&
non_interactive_element_role_schemas.some((schema) =>
match_schema(schema, tag_name, attribute_map)
)
) {
return false;
return ElementInteractivity.NonInteractive;
}
if (
@ -148,34 +167,7 @@ export function is_interactive_element(
match_schema(schema, tag_name, attribute_map)
)
) {
return true;
}
return false;
}
export function is_non_interactive_element(
tag_name: string,
attribute_map: Map<string, Attribute>
): boolean {
if (tag_name === 'header') {
return false;
}
if (
non_interactive_element_role_schemas.some((schema) =>
match_schema(schema, tag_name, attribute_map)
)
) {
return true;
}
if (
interactive_element_role_schemas.some((schema) =>
match_schema(schema, tag_name, attribute_map)
)
) {
return false;
return ElementInteractivity.Interactive;
}
if (
@ -183,10 +175,10 @@ export function is_non_interactive_element(
match_schema(schema, tag_name, attribute_map)
)
) {
return true;
return ElementInteractivity.NonInteractive;
}
return false;
return ElementInteractivity.Static;
}
export function is_semantic_role_element(role: ARIARoleDefintionKey, tag_name: string, attribute_map: Map<string, Attribute>) {

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