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* Copyright (c) Siemens 2016 - 2025
* SPDX-License-Identifier: MIT
*/
import { BreakpointObserver } from '@angular/cdk/layout';
import {
booleanAttribute,
Component,
computed,
DestroyRef,
inject,
input,
OnInit,
output,
signal
} from '@angular/core';
import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
import { SiAccordionHCollapseService } from '@siemens/element-ng/accordion';
import { MenuItem as MenuItemLegacy } from '@siemens/element-ng/common';
import {
ContentActionBarMainItem,
SiContentActionBarComponent
} from '@siemens/element-ng/content-action-bar';
import {
addIcons,
elementDoubleLeft,
elementDoubleRight,
SiIconComponent
} from '@siemens/element-ng/icon';
import { SiLinkDirective } from '@siemens/element-ng/link';
import { MenuItem } from '@siemens/element-ng/menu';
import { BOOTSTRAP_BREAKPOINTS } from '@siemens/element-ng/resize-observer';
import { SiSearchBarComponent } from '@siemens/element-ng/search-bar';
import { SiTranslatePipe, t, TranslatableString } from '@siemens/element-translate-ng/translate';
import { SiSidePanelService } from './si-side-panel.service';
/**
* An extension of MenuItem to support combined icons
*/
export interface StatusItem extends MenuItemLegacy {
overlayIcon?: string;
}
@Component({
selector: 'si-side-panel-content',
imports: [
SiContentActionBarComponent,
SiIconComponent,
SiLinkDirective,
SiSearchBarComponent,
SiTranslatePipe
],
templateUrl: './si-side-panel-content.component.html',
styleUrl: './si-side-panel-content.component.scss',
providers: [SiAccordionHCollapseService],
host: {
'[class.collapsed]': 'isCollapsed()',
'[class.expanded]': 'isExpanded()',
'[class.enable-mobile]': 'enableMobile()'
}
})
export class SiSidePanelContentComponent implements OnInit {
/**
* @defaultValue false
*/
readonly collapsible = input(false, { transform: booleanAttribute });
/**
* Header of side panel
*
* @defaultValue ''
*/
readonly heading = input<TranslatableString>('');
/**
* Input list of primary action items
*
* @defaultValue []
*/
readonly primaryActions = input<(MenuItemLegacy | ContentActionBarMainItem)[]>([]);
/**
* Input list of secondary action items.
*
* @defaultValue []
*/
readonly secondaryActions = input<(MenuItemLegacy | MenuItem)[]>([]);
/**
* Status icons/actions
*
* @defaultValue []
*/
readonly statusActions = input<StatusItem[]>([]);
/**
* Toggles search bar
*
* @defaultValue false
*/
readonly searchable = input(false, { transform: booleanAttribute });
/**
* Placeholder text for search
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_SIDE_PANEL.SEARCH_PLACEHOLDER:Search...`)
* ```
*/
readonly searchPlaceholder = input(
t(() => $localize`:@@SI_SIDE_PANEL.SEARCH_PLACEHOLDER:Search...`)
);
/**
* Aria label for close button. Needed for a11y
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_SIDE_PANEL.CLOSE:Close`)
* ```
*/
readonly closeButtonLabel = input(t(() => $localize`:@@SI_SIDE_PANEL.CLOSE:Close`));
/**
* Toggle icon aria-label, required for a11y
*
* @defaultValue
* ```
* t(() => $localize`:@@SI_SIDE_PANEL.TOGGLE:Toggle`)
* ```
*/
readonly toggleItemLabel = input(t(() => $localize`:@@SI_SIDE_PANEL.TOGGLE:Toggle`));
/**
* Show a badge on the mobile drawer indicating a new alert or notification
*
* @defaultValue false
*/
readonly showMobileDrawerBadge = input(false, { transform: booleanAttribute });
/**
* Output for search bar input
*/
readonly searchEvent = output<string>();
protected readonly isCollapsed = signal(false);
protected readonly isExpanded = signal(true);
protected readonly enableMobile = computed(() => this.service?.enableMobile() ?? false);
protected readonly mobileSize = signal(false);
protected readonly focusable = computed(
() => !this.mobileSize() || !this.enableMobile() || !this.isCollapsed()
);
protected readonly icons = addIcons({ elementDoubleLeft, elementDoubleRight });
/**
* The $rpanel-transition-duration in the style is 0.5 seconds.
* For the animation we need to wait until the resize is done.
*/
private readonly resizeAnimationDelay = 500;
private readonly destroyRef = inject(DestroyRef);
private readonly service = inject(SiSidePanelService);
private readonly breakpointObserver = inject(BreakpointObserver);
private expandedTimeout: any;
constructor() {
const accordionHcollapse = inject(SiAccordionHCollapseService);
this.service.isOpen$.pipe(takeUntilDestroyed(this.destroyRef)).subscribe(state => {
this.isCollapsed.set(!state);
clearTimeout(this.expandedTimeout);
this.expandedTimeout = undefined;
if (!state) {
this.isExpanded.set(false);
} else {
this.expandedTimeout = setTimeout(() => {
this.isExpanded.set(true);
}, this.resizeAnimationDelay / 2);
}
accordionHcollapse.hcollapsed.set(!state);
});
accordionHcollapse.open$
.pipe(takeUntilDestroyed(this.destroyRef))
.subscribe(() => this.service.open());
}
ngOnInit(): void {
this.breakpointObserver
.observe('(max-width: ' + BOOTSTRAP_BREAKPOINTS.smMinimum + 'px)')
.pipe(takeUntilDestroyed(this.destroyRef))
.subscribe(({ matches }) => {
this.mobileSize.set(matches);
});
}
protected toggleSidePanel(event?: MouseEvent): void {
Iif (event?.detail !== 0) {
// Blur except if triggered by keyboard
(document?.activeElement as HTMLElement)?.blur();
}
Iif (this.service.isTemporaryOpen()) {
this.service.hideTemporaryContent();
} else {
this.service.toggle();
}
}
}
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