carbon-components-angular
Version:
Next generation components
180 lines • 14.3 kB
JavaScript
import { Component, Input, Output, EventEmitter, TemplateRef, HostBinding } 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() {
/**
* 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 it's `TabPanel` is rendered.
*/
this.active = false;
/**
* Indicates whether or not the `Tab` item is disabled.
*/
this.disabled = false;
this.tabIndex = 0;
/**
* Sets the id of the `Tab`. Will be uniquely generated if not provided.
*/
this.id = `n-tab-${Tab.counter++}`;
/**
* Value 'selected' to be emitted after a new `Tab` is selected.
*/
this.selected = new EventEmitter();
/**
* Used to set the id property on the element.
*/
this.attrClass = this.id;
this._cacheActive = false;
}
/**
* 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 `TabPanel`.
*/
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: { heading: "heading", title: "title", context: "context", active: "active", disabled: "disabled", tabIndex: "tabIndex", id: "id", cacheActive: "cacheActive", tabContent: "tabContent", templateContext: "templateContext" }, outputs: { selected: "selected" }, host: { properties: { "attr.id": "this.attrClass" } }, ngImport: i0, template: `
<div
[attr.tabindex]="tabIndex"
role="tabpanel"
*ngIf="shouldRender()"
class="cds--tab-content"
[ngStyle]="{'display': active ? null : 'none'}"
[attr.aria-labelledby]="id + '-header'"
aria-live="polite">
<ng-template
*ngIf="isTemplate(tabContent)"
[ngTemplateOutlet]="tabContent"
[ngTemplateOutletContext]="{ $implicit: templateContext }">
</ng-template>
<ng-content></ng-content>
</div>
`, 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"] }, { kind: "directive", type: i1.NgStyle, selector: "[ngStyle]", inputs: ["ngStyle"] }] });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "14.3.0", ngImport: i0, type: Tab, decorators: [{
type: Component,
args: [{
selector: "cds-tab, ibm-tab",
template: `
<div
[attr.tabindex]="tabIndex"
role="tabpanel"
*ngIf="shouldRender()"
class="cds--tab-content"
[ngStyle]="{'display': active ? null : 'none'}"
[attr.aria-labelledby]="id + '-header'"
aria-live="polite">
<ng-template
*ngIf="isTemplate(tabContent)"
[ngTemplateOutlet]="tabContent"
[ngTemplateOutletContext]="{ $implicit: templateContext }">
</ng-template>
<ng-content></ng-content>
</div>
`
}]
}], propDecorators: { heading: [{
type: Input
}], title: [{
type: Input
}], context: [{
type: Input
}], active: [{
type: Input
}], disabled: [{
type: Input
}], tabIndex: [{
type: Input
}], id: [{
type: Input
}], cacheActive: [{
type: Input
}], tabContent: [{
type: Input
}], templateContext: [{
type: Input
}], selected: [{
type: Output
}], attrClass: [{
type: HostBinding,
args: ["attr.id"]
}] } });
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Will be uniquely generated if not provided.\n\t */\n\t@Input() id = `n-tab-${Tab.counter++}`;\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\t/**\n\t * Allows life cycle 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 * Value 'selected' to be emitted after a new `Tab` is selected.\n\t */\n\t@Output() selected: EventEmitter<void> = new EventEmitter<void>();\n\t/**\n\t * Used to set the id property on the element.\n\t */\n\t@HostBinding(\"attr.id\") attrClass = this.id;\n\n\tget cacheActive() {\n\t\treturn this._cacheActive;\n\t}\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 `TabPanel`.\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"]}