carbon-components-angular
Version:
Next generation components
246 lines • 21.1 kB
JavaScript
import { Component, Input, Output, EventEmitter, HostBinding, TemplateRef } from "@angular/core";
import * as i0 from "@angular/core";
import * as i1 from "@angular/common";
/**
* The `Tab` component is a child of the `Tabs` component.
* It represents one `Tab` item and its content within a panel of other `Tab` items.
*
* `Tab` takes a string or `TemplateRef` for the header, and any content for the body of the tab.
* Disabled states should be handled by the application (ie. switch to the tab, but display some
* indication as to _why_ the tab is disabled).
*
* When the tab is selected the `select` output will be triggered.
* The `select` output will also be triggered for the active tab when the tabs are loaded or updated.
*
*
* Tab with string header:
*
* ```html
* <cds-tab heading='tab1'>
* tab 1 content
* </cds-tab>
* ```
*
* Tab with custom header:
*
* ```html
* <ng-template #tabHeading>
* <svg cdsIcon="facebook"
* size="sm"
* style="margin-right: 7px;">
* </svg>
* Hello Tab 1
* </ng-template>
* <cds-tabs>
* <cds-tab [heading]="tabHeading">
* Tab 1 content <svg cdsIcon="alert" size="lg"></svg>
* </cds-tab>
* <cds-tab heading='Tab2'>
* Tab 2 content
* </cds-tab>
* <cds-tab heading='Tab3'>
* Tab 3 content
* </cds-tab>
* </cds-tabs>
* ```
*/
export class Tab {
constructor() {
this.tabContentClass = true;
this.panelRole = "tabpanel";
this.panelAriaLive = "polite";
/**
* Boolean value reflects if the `Tab` is using a custom template for the heading.
* Default value is false.
*/
this.headingIsTemplate = false;
/**
* Indicates whether the `Tab` is active/selected.
* Determines whether its tab panel content is rendered.
*/
this.active = false;
/**
* Indicates whether or not the `Tab` item is disabled.
*/
this.disabled = false;
/**
* `tabindex` on the tab panel, the parent may set this to `null` when `isNavigation` is `true`.
*/
this.tabIndex = 0;
/**
* Sets the id of the `Tab`. Will be uniquely generated if not provided.
*/
this.id = `n-tab-${Tab.counter++}`;
/**
* Sets the aria-label of the close button when the parent `Tabs` uses `dismissable`.
*/
this.closeButtonAriaLabel = "Press delete to remove tab";
/**
* Icon-only tab: pair with `icon` and `iconLabel`.
*/
this.iconOnly = false;
/**
* **Preview**: Icon-only tabs — show a notification dot on the icon.
*/
this.badgeIndicator = false;
/**
* Icon-only tabs: open the tooltip on first render.
*/
this.isTooltipOpen = false;
/**
* Emits when this tab becomes selected.
*/
this.selected = new EventEmitter();
/**
* Emits when this tab's close button is pressed.
*/
this.tabClose = new EventEmitter();
this._cacheActive = false;
}
get hostId() {
return this.id;
}
get hostAriaLabelledby() {
return `${this.id}-header`;
}
get hostTabIndex() {
return this.tabIndex;
}
/**
* `hidden` + display keep inactive panels out of layout; `null` display when active preserves grid/flex.
*/
get hostHidden() {
return this.active ? null : "";
}
get hostDisplay() {
return this.active ? "block" : "none";
}
/**
* Set to `true` to have `Tab` items cached and not reloaded on tab switching.
*/
set cacheActive(shouldCache) {
this._cacheActive = shouldCache;
}
get cacheActive() {
return this._cacheActive;
}
/**
* Checks for custom heading template on initialization and updates the value
* of the boolean 'headingIsTemplate'.
*/
ngOnInit() {
if (this.heading instanceof TemplateRef) {
this.headingIsTemplate = true;
}
}
/**
* Emit the status of the `Tab`, specifically 'select' and 'selected' properties.
*/
doSelect() {
this.selected.emit();
}
/**
* Returns value indicating whether this `Tab` should be rendered in a tab panel.
*/
shouldRender() {
return this.active || this.cacheActive;
}
isTemplate(value) {
return value instanceof TemplateRef;
}
}
Tab.counter = 0;
Tab.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: Tab, deps: [], target: i0.ɵɵFactoryTarget.Component });
Tab.ɵcmp = i0.ɵɵngDeclareComponent({ minVersion: "14.0.0", version: "14.3.0", type: Tab, selector: "cds-tab, ibm-tab", inputs: { cacheActive: "cacheActive", heading: "heading", title: "title", context: "context", active: "active", disabled: "disabled", tabIndex: "tabIndex", id: "id", tabContent: "tabContent", templateContext: "templateContext", icon: "icon", secondaryLabel: "secondaryLabel", closeButtonAriaLabel: "closeButtonAriaLabel", iconOnly: "iconOnly", iconLabel: "iconLabel", badgeIndicator: "badgeIndicator", enterDelayMs: "enterDelayMs", leaveDelayMs: "leaveDelayMs", isTooltipOpen: "isTooltipOpen" }, outputs: { selected: "selected", tabClose: "tabClose" }, host: { properties: { "attr.id": "this.hostId", "attr.aria-labelledby": "this.hostAriaLabelledby", "attr.tabindex": "this.hostTabIndex", "attr.hidden": "this.hostHidden", "style.display": "this.hostDisplay", "class.cds--tab-content": "this.tabContentClass", "attr.role": "this.panelRole", "attr.aria-live": "this.panelAriaLive" } }, ngImport: i0, template: `
<ng-container *ngIf="shouldRender()">
<ng-template
*ngIf="isTemplate(tabContent)"
[ngTemplateOutlet]="tabContent"
[ngTemplateOutletContext]="{ $implicit: templateContext }">
</ng-template>
<ng-content></ng-content>
</ng-container>
`, isInline: true, dependencies: [{ kind: "directive", type: i1.NgIf, selector: "[ngIf]", inputs: ["ngIf", "ngIfThen", "ngIfElse"] }, { kind: "directive", type: i1.NgTemplateOutlet, selector: "[ngTemplateOutlet]", inputs: ["ngTemplateOutletContext", "ngTemplateOutlet", "ngTemplateOutletInjector"] }] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: Tab, decorators: [{
type: Component,
args: [{
selector: "cds-tab, ibm-tab",
template: `
<ng-container *ngIf="shouldRender()">
<ng-template
*ngIf="isTemplate(tabContent)"
[ngTemplateOutlet]="tabContent"
[ngTemplateOutletContext]="{ $implicit: templateContext }">
</ng-template>
<ng-content></ng-content>
</ng-container>
`
}]
}], propDecorators: { hostId: [{
type: HostBinding,
args: ["attr.id"]
}], hostAriaLabelledby: [{
type: HostBinding,
args: ["attr.aria-labelledby"]
}], hostTabIndex: [{
type: HostBinding,
args: ["attr.tabindex"]
}], hostHidden: [{
type: HostBinding,
args: ["attr.hidden"]
}], hostDisplay: [{
type: HostBinding,
args: ["style.display"]
}], cacheActive: [{
type: Input
}], tabContentClass: [{
type: HostBinding,
args: ["class.cds--tab-content"]
}], panelRole: [{
type: HostBinding,
args: ["attr.role"]
}], panelAriaLive: [{
type: HostBinding,
args: ["attr.aria-live"]
}], heading: [{
type: Input
}], title: [{
type: Input
}], context: [{
type: Input
}], active: [{
type: Input
}], disabled: [{
type: Input
}], tabIndex: [{
type: Input
}], id: [{
type: Input
}], tabContent: [{
type: Input
}], templateContext: [{
type: Input
}], icon: [{
type: Input
}], secondaryLabel: [{
type: Input
}], closeButtonAriaLabel: [{
type: Input
}], iconOnly: [{
type: Input
}], iconLabel: [{
type: Input
}], badgeIndicator: [{
type: Input
}], enterDelayMs: [{
type: Input
}], leaveDelayMs: [{
type: Input
}], isTooltipOpen: [{
type: Input
}], selected: [{
type: Output
}], tabClose: [{
type: Output
}] } });
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null : \"\";\n\t}\n\t@HostBinding(\"style.display\") get hostDisplay() {\n\t\treturn this.active ? \"block\" : \"none\";\n\t}\n\t/**\n\t * Set to `true` to have `Tab` items cached and not reloaded on tab switching.\n\t */\n\t@Input() set cacheActive(shouldCache: boolean) {\n\t\tthis._cacheActive = shouldCache;\n\t}\n\n\tget cacheActive() {\n\t\treturn this._cacheActive;\n\t}\n\tprivate static counter = 0;\n\t@HostBinding(\"class.cds--tab-content\") tabContentClass = true;\n\t@HostBinding(\"attr.role\") panelRole = \"tabpanel\";\n\t@HostBinding(\"attr.aria-live\") panelAriaLive = \"polite\";\n\t/**\n\t * Boolean value reflects if the `Tab` is using a custom template for the heading.\n\t * Default value is false.\n\t */\n\tpublic headingIsTemplate = false;\n\n\t/**\n\t * The `Tab`'s title to be displayed or custom template for the `Tab` heading.\n\t */\n\t@Input() heading: string | TemplateRef<any>;\n\t/**\n\t * Optional override for the `tabItem's`'s title attribute which is set in `TabHeaders`.\n\t * `tabItem`'s title attribute is automatically set to `heading`.\n\t *\n\t * You might want to use this if you set `heading` to a `TemplateRef`.\n\t */\n\t@Input() title: string;\n\t/**\n\t * Allows the user to pass data to the custom template for the `Tab` heading.\n\t */\n\t@Input() context: any;\n\t/**\n\t * Indicates whether the `Tab` is active/selected.\n\t * Determines whether its tab panel content is rendered.\n\t */\n\t@Input() active = false;\n\t/**\n\t * Indicates whether or not the `Tab` item is disabled.\n\t */\n\t@Input() disabled = false;\n\n\t/**\n\t * `tabindex` on the tab panel, the parent may set this to `null` when `isNavigation` is `true`.\n\t */\n\t@Input() tabIndex = 0;\n\t/**\n\t * Sets the id of the `Tab`. Will be uniquely generated if not provided.\n\t */\n\t@Input() id = `n-tab-${Tab.counter++}`;\n\t/**\n\t * Allows lifecycle hooks to be called on the rendered content.\n\t */\n\t@Input() tabContent: TemplateRef<any>;\n\t/**\n\t * Optional data for templates passed as implicit context.\n\t */\n\t@Input() templateContext: any;\n\t/**\n\t * Optional template that renders an icon inside the `Tab` header.\n\t * Useful for rendering a `cdsIcon` or any other icon next to the tab label.\n\t */\n\t@Input() icon: TemplateRef<any>;\n\t/**\n\t * Optional secondary label rendered below the primary tab label.\n\t * Only displayed when the parent `Tabs` is using `type=\"contained\"`.\n\t */\n\t@Input() secondaryLabel: string;\n\t/**\n\t * Sets the aria-label of the close button when the parent `Tabs` uses `dismissable`.\n\t */\n\t@Input() closeButtonAriaLabel = \"Press delete to remove tab\";\n\t/**\n\t * Icon-only tab: pair with `icon` and `iconLabel`.\n\t */\n\t@Input() iconOnly = false;\n\t/**\n\t * Icon-only tabs: accessible name and tooltip text.\n\t */\n\t@Input() iconLabel: string;\n\t/**\n\t * **Preview**: Icon-only tabs — show a notification dot on the icon.\n\t */\n\t@Input() badgeIndicator = false;\n\t/**\n\t * Icon-only tabs: tooltip show delay (ms).\n\t */\n\t@Input() enterDelayMs: number;\n\t/**\n\t * Icon-only tabs: tooltip hide delay (ms).\n\t */\n\t@Input() leaveDelayMs: number;\n\t/**\n\t * Icon-only tabs: open the tooltip on first render.\n\t */\n\t@Input() isTooltipOpen = false;\n\t/**\n\t * Emits when this tab becomes selected.\n\t */\n\t@Output() selected: EventEmitter<void> = new EventEmitter<void>();\n\t/**\n\t * Emits when this tab's close button is pressed.\n\t */\n\t@Output() tabClose: EventEmitter<void> = new EventEmitter<void>();\n\n\tprotected _cacheActive = false;\n\n\t/**\n\t * Checks for custom heading template on initialization and updates the value\n\t * of the boolean 'headingIsTemplate'.\n\t */\n\tngOnInit() {\n\t\tif (this.heading instanceof TemplateRef) {\n\t\t\tthis.headingIsTemplate = true;\n\t\t}\n\t}\n\n\t/**\n\t * Emit the status of the `Tab`, specifically 'select' and 'selected' properties.\n\t */\n\tdoSelect() {\n\t\tthis.selected.emit();\n\t}\n\n\t/**\n\t* Returns value indicating whether this `Tab` should be rendered in a tab panel.\n\t */\n\tshouldRender() {\n\t\treturn this.active || this.cacheActive;\n\t}\n\n\tpublic isTemplate(value) {\n\t\treturn value instanceof TemplateRef;\n\t}\n}\n"]}