@scania/tegel
Version:
Tegel Design System
208 lines (204 loc) • 10.7 kB
JavaScript
import { r as registerInstance, c as createEvent, h, H as Host, a as getElement } from './index-9xxNGlso.js';
const navigationTabsCss = () => `:host{box-sizing:border-box;display:flex;background-color:var(--tds-navigation-tabs-background);position:relative}:host *{box-sizing:border-box}:host::after{content:" ";display:block;border-bottom:1px solid var(--tds-navigation-tabs-horizontal-divider-background);left:0;right:0;bottom:0;position:absolute}:host .wrapper{display:flex;flex-wrap:nowrap;white-space:nowrap;width:100%;overflow-x:scroll;scrollbar-width:none;gap:16px}:host .wrapper::-webkit-scrollbar{display:none}:host .scroll-right-button{right:0;z-index:1}:host .scroll-left-button{left:0;z-index:1}:host .scroll-right-button,:host .scroll-left-button{color:var(--tds-folder-tabs-scroll-btn-color);cursor:pointer;border:0;width:0;background-color:var(--tds-inline-tabs-scroll-btn-background);display:none;justify-content:center;align-items:center;opacity:0;pointer-events:none;position:sticky}:host .scroll-right-button.show,:host .scroll-left-button.show{min-width:48px;display:block;opacity:1;pointer-events:all}:host .scroll-right-button:hover,:host .scroll-left-button:hover{background-color:var(--tds-folder-tabs-scroll-btn-background-hover)}:host .scroll-right-button:active,:host .scroll-left-button:active{background-color:var(--tds-folder-tabs-scroll-btn-background-active)}:host .scroll-right-button:focus::before,:host .scroll-left-button:focus::before{content:"";position:absolute;left:3px;right:3px;top:3px;bottom:3px;outline:2px solid var(--tds-focus-outline-color);box-shadow:0 0 0 1px var(--tds-white);outline-offset:1px;z-index:1}:host .scroll-right-button:focus,:host .scroll-left-button:focus{outline:0}:host .scroll-right-button svg,:host .scroll-left-button svg{fill:var(--tds-folder-tabs-scroll-btn-color)}`;
const TdsNavigationTabs = class {
constructor(hostRef) {
registerInstance(this, hostRef);
this.tdsChange = createEvent(this, "tdsChange", 7);
/** Variant of the Tabs, primary= on white, secondary= on grey50 */
this.modeVariant = 'primary';
/** Sets the default selected Tab. */
this.defaultSelectedIndex = 0;
/** Custom left padding value for the wrapper element. */
this.leftPadding = 32;
/** Defines aria-label on left scroll button */
this.tdsScrollLeftAriaLabel = 'Scroll left';
/** Defines aria-label on right scroll button */
this.tdsScrollRightAriaLabel = 'Scroll right';
this.showLeftScroll = false;
this.showRightScroll = false;
this.navWrapperElement = null; // reference to container with nav buttons
this.componentWidth = 0; // visible width of this component
this.buttonsWidth = 0; // total width of all nav items combined
this.scrollableWidth = 0; // total amount that is possible to scroll in the nav wrapper
this.tabElements = [];
this.clickHandlers = new WeakMap();
this.addResizeObserver = () => {
const resizeObserver = new ResizeObserver((entries) => {
entries.forEach((entry) => {
const componentWidth = entry.contentRect.width;
let buttonsWidth = 0;
const navButtons = Array.from(this.host.children);
navButtons.forEach((navButton) => {
const style = window.getComputedStyle(navButton);
buttonsWidth +=
navButton.clientWidth + parseFloat(style.marginLeft) + parseFloat(style.marginRight);
});
this.componentWidth = componentWidth;
this.buttonsWidth = buttonsWidth;
this.scrollableWidth = buttonsWidth - componentWidth;
this.updateScrollButtons();
});
});
if (this.navWrapperElement)
resizeObserver.observe(this.navWrapperElement);
};
this.addEventListenerToTabs = () => {
this.tabElements = Array.from(this.host.children);
this.tabElements.map((item, index) => {
const clickHandler = () => {
if (!item.disabled) {
const tdsChangeEvent = this.tdsChange.emit({
selectedTabIndex: this.tabElements.indexOf(item),
});
if (!tdsChangeEvent.defaultPrevented) {
this.tabElements.forEach((element) => element.setSelected(false));
item.setSelected(true);
this.selectedIndex = index;
}
}
};
item.addEventListener('click', clickHandler);
this.clickHandlers.set(item, clickHandler); // Store the handler in WeakMap
return item;
});
};
this.removeEventListenerFromTabs = () => {
this.tabElements.forEach((item) => {
const clickHandler = this.clickHandlers.get(item);
if (clickHandler) {
item.removeEventListener('click', clickHandler);
this.clickHandlers.delete(item);
}
});
};
}
/** Sets the passed tabindex as the selected Tab. */
async selectTab(tabIndex) {
if (!this.tabElements[tabIndex].disabled) {
this.tabElements.forEach((element) => element.setSelected(false));
this.tabElements = this.tabElements.map((element, index) => {
if (index === tabIndex) {
element.setSelected(true);
this.selectedIndex = tabIndex;
}
return element;
});
}
return {
selectedTabIndex: this.selectedIndex,
};
}
/** Reinitializes the component. */
async reinitialize() {
this.handleSlotChange();
}
handleSelectedIndexUpdate() {
this.tabElements = Array.from(this.host.children).map((tabElement) => {
tabElement.setSelected(false);
return tabElement;
});
if (this.selectedIndex) {
this.tabElements[this.selectedIndex].setSelected(true);
}
}
scrollRight() {
if (!this.navWrapperElement)
return;
const scroll = this.navWrapperElement.scrollLeft;
this.navWrapperElement.scrollLeft = scroll + this.buttonsWidth;
this.evaluateScrollButtons();
}
scrollLeft() {
if (!this.navWrapperElement)
return;
const scroll = this.navWrapperElement.scrollLeft;
this.navWrapperElement.scrollLeft = scroll - this.buttonsWidth;
this.evaluateScrollButtons();
}
evaluateScrollButtons() {
if (!this.navWrapperElement)
return;
const scroll = this.navWrapperElement.scrollLeft;
this.showRightScroll = scroll <= this.scrollableWidth;
this.showLeftScroll = scroll > 0;
}
initializeTabs() {
this.tabElements = Array.from(this.host.children);
// remove first and last class from other tabs in case of initialization
this.tabElements.forEach((child) => {
child.classList.remove('last');
child.classList.remove('first');
});
if (this.tabElements.length > 0) {
this.tabElements[0].classList.add('first');
this.tabElements[this.tabElements.length - 1].classList.add('last');
}
}
initializeSelectedTab() {
if (this.selectedIndex === undefined) {
this.addEventListenerToTabs();
this.tabElements[this.defaultSelectedIndex].setSelected(true);
this.selectedIndex = this.defaultSelectedIndex;
}
else {
this.tabElements[this.selectedIndex].setSelected(true);
}
this.tdsChange.emit({
selectedTabIndex: this.selectedIndex,
});
}
updateScrollButtons() {
if (this.buttonsWidth > this.componentWidth) {
this.evaluateScrollButtons();
}
else {
this.showLeftScroll = false;
this.showRightScroll = false;
}
}
applyCustomLeftPadding() {
if (this.navWrapperElement) {
this.navWrapperElement.style.paddingLeft = `${this.leftPadding}px`;
}
}
handleSlotChange() {
this.initializeTabs();
this.addEventListenerToTabs();
this.initializeSelectedTab();
this.updateScrollButtons();
this.addResizeObserver();
this.applyCustomLeftPadding(); // Apply custom left padding to the wrapper
}
connectedCallback() {
this.initializeTabs();
}
componentDidLoad() {
this.initializeSelectedTab();
}
componentDidRender() {
this.updateScrollButtons();
this.addResizeObserver();
}
disconnectedCallback() {
this.removeEventListenerFromTabs();
}
render() {
return (h(Host, { key: '30d0734a2ac6fe0a585ca7e15fe08f9feceb2303', role: "tablist", class: { [`tds-mode-variant-${this.modeVariant}`]: this.modeVariant !== null } }, h("div", { key: 'b27101ea4c520eb434ba26c425e6179c1b0bdd8b', class: "wrapper", ref: (el) => {
this.navWrapperElement = el;
}, style: { paddingLeft: `${this.leftPadding}px` } }, h("button", { key: 'a2214da9d20638ee1896cb04c759f598caee3425', "aria-label": this.tdsScrollLeftAriaLabel, class: {
'scroll-left-button': true,
'show': this.showLeftScroll,
}, onClick: () => this.scrollLeft(), disabled: !this.showLeftScroll }, h("tds-icon", { key: '54fc194d33c682ecf03c51af39ce5290de199c29', name: "chevron_left", size: "20px" })), h("slot", { key: '8c673f8d743352b4f5228c434ea6ba73b35d5916', onSlotchange: () => this.handleSlotChange() }), h("button", { key: 'f89e20284ad64bb864e84c28015f162fdf744b62', "aria-label": this.tdsScrollRightAriaLabel, class: {
'scroll-right-button': true,
'show': this.showRightScroll,
}, onClick: () => this.scrollRight(), disabled: !this.showRightScroll }, h("tds-icon", { key: '6099eec68724b31d6ec71e5f6491313cae51db1f', name: "chevron_right", size: "20px" })))));
}
get host() { return getElement(this); }
static get watchers() { return {
"selectedIndex": [{
"handleSelectedIndexUpdate": 0
}]
}; }
};
TdsNavigationTabs.style = navigationTabsCss();
export { TdsNavigationTabs as tds_navigation_tabs };