Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 | 33x 33x 33x 33x 30x 33x 39x 33x 33x 33x 33x 39x 33x 4x 3x 4x 3x | import Component from '@ember/component';
import { classNames, attributeBindings, classNameBindings, tagName, layout as templateLayout } from '@ember-decorators/component';
import layout from '../../templates/components/nucleus-tabs/tab-list-item';
import { get, set, computed } from '@ember/object';
import defaultProp from '@freshworks/core/utils/default-decorator';
import { TABS_KEY_CODE } from '../../constants/nucleus-tabs'
/**
__Usage:__
[Refer component page](/docs/components/nucleus-tabs)
@class Nucleus Tab List Item
@namespace Components
@extends Ember.Component
@private
*/
@tagName('div')
@templateLayout(layout)
@classNames('nucleus-tabs__list__item')
@classNameBindings('isActive:is-active', 'isDisabled:is-disabled', 'isPressed:is-pressed')
@attributeBindings('isDisabled:disabled', 'tabindex', 'title', 'role', 'aria-controls', 'aria-selected', 'testId:data-test-tab-id')
class TabListItem extends Component {
/**
* disabled
*
* @field disabled
* @type string
* @default null
* @readonly
* @public
*/
@defaultProp
disabled = null;
/**
* controls
*
* @field controls
* @description idref to what panel this tab item controls
* @type string|null
* @readonly
* @public
*/
@defaultProp
controls;
/**
* selected
*
* @field selected
* @description currently selected tab
* @readonly
* @public
*/
@defaultProp
selected;
/**
* tabOrder
*
* @field tabOrder
* @description order in which tabs are displayed. Only first tabs will not have tabIndex value
* @type number
* @readonly
* @public
*/
@defaultProp
tabOrder;
/**
* testId
*
* @field testId
* @type string|null
* @default null
* @readonly
* @public
*/
@defaultProp
testId = null;
/**
* role
*
* @field role
* @type string
* @default 'tab'
* @public
*/
role = 'tab';
/**
* isPressed
*
* @field isPressed
* @description to solve focus on click styling
* @type boolean
* @default false
* @public
*/
isPressed = false;
/**
* tabindex
*
* @field tabindex
* @type string|null
* @public
*/
@computed('tabOrder', function() {
let tabIndex = null;
if(!get(this, 'isDisabled')) {
tabIndex = (get(this, 'tabOrder') === 0)? '0' : '-1';
}
return tabIndex;
})
tabindex;
/**
* isActive
*
* @field isActive
* @type boolean
* @public
*/
@computed('selected', function() {
return (get(this, 'selected') === get(this, 'name'));
})
isActive;
/**
* isDisabled
*
* @field isDisabled
* @type boolean
* @public
*/
@computed('disabled', function() {
return (get(this, 'disabled').toString() === 'true')? true : false;
})
isDisabled;
/**
* title
*
* @field title
* @type string
* @public
*/
@computed('name', function() {
return get(this, 'name');
})
title;
/**
* data-test-tab-id
*
* @field data-test-tab-id
* @type string
* @public
*/
@computed('testId', function() {
return get(this, 'testId');
})
'data-test-tab-id';
/**
* aria-controls
*
* @field aria-controls
* @type string
* @public
*/
@computed('controls', function() {
return get(this, 'controls');
})
'aria-controls';
/**
* aria-selected
*
* @field aria-selected
* @type boolean
* @public
*/
@computed('selected', function() {
return (get(this, 'selected') === get(this, 'name')).toString();
})
'aria-selected';
/**
* didInsertElement
*
* @method didInsertElement
* @description lifecycle event
* @public
*
*/
didInsertElement() {
get(this, 'registerTabListItem').call(this, {
id: get(this, 'elementId'),
name: get(this, 'name')
});
}
/**
* mouseDown
*
* @method mouseDown
* @description event handler : We are negating the style applied on click-focus
* @public
*
*/
mouseDown() {
if(get(this, 'isDisabled') === false) {
set(this, 'isPressed', true);
}
}
/**
* focusOut
*
* @method focusOut
* @description event handler : Removing style that was applied during press to negate focus
* @public
*
*/
focusOut() {
if(get(this, 'isPressed') === true) {
set(this, 'isPressed', false);
}
}
/**
* click
*
* @method click
* @description event handler
* @public
*
*/
click(event) {
if(get(this, 'isDisabled') === false) {
get(this, 'handleActivateTab').call(this, get(this, 'name'), event);
}
}
/**
* keyDown
*
* @method keyDown
* @description event handler
* @public
*
*/
keyDown(event) {
event.stopPropagation();
const targetElement = event.target;
const firstElement = targetElement.parentElement.firstElementChild;
const lastElement = targetElement.parentElement.lastElementChild;
const keyCode = TABS_KEY_CODE;
switch (event.keyCode) {
case keyCode.ENTER:
case keyCode.SPACE:
event.preventDefault();
targetElement.click();
break;
case keyCode.END:
lastElement.focus();
break;
case keyCode.HOME:
firstElement.focus();
break;
case keyCode.LEFT:
get(this, '_changeTabFocus').call(this, 'previous', targetElement);
break;
case keyCode.RIGHT:
get(this, '_changeTabFocus').call(this, 'next', targetElement);
break;
default:
break;
}
}
/**
* _changeTabFocus
*
* @method _changeTabFocus
* @description Change focus based on direction
* @param {string} direction takes either 'next' or 'previous'
* @param {Object} element
* @param {Object} [elementInFocus]
* @private
*
*/
_changeTabFocus(direction, element, elementInFocus) {
let adjacentElement;
if(direction === 'previous') {
adjacentElement = (element.previousElementSibling)? element.previousElementSibling : element.parentElement.lastElementChild;
} else {
adjacentElement = (element.nextElementSibling)? element.nextElementSibling : element.parentElement.firstElementChild;
}
if(elementInFocus && (elementInFocus.id === adjacentElement.id)) {
return;
} else if(adjacentElement.getAttribute('tabindex') === null) {
get(this, '_changeTabFocus').call(this, direction, adjacentElement, element);
} else {
adjacentElement.focus();
}
}
}
export default TabListItem;
|