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ThreadNet-Web/apps/web/src/viewmodels/message-body/EditHistoryActionBarViewModel.ts
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/*
* Copyright 2026 Element Creations Ltd.
*
* SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
* Please see LICENSE files in the repository root for full details.
*/
import {
ActionBarAction,
BaseViewModel,
type ActionBarViewActions,
type ActionBarViewSnapshot,
} from "@element-hq/web-shared-components";
/** Props for the edit-history action bar view model. */
export interface EditHistoryActionBarViewModelProps {
/** Whether to include the remove action. */
canRemove: boolean;
/** Whether to include the view source action. */
showViewSource: boolean;
/** Called when the remove action is activated. */
onRemoveClick?: (anchor: HTMLElement | null) => void;
/** Called when the view source action is activated. */
onViewSourceClick?: (anchor: HTMLElement | null) => void;
}
/** View model for the label-style action bar shown in the edit-history panel. */
export class EditHistoryActionBarViewModel
extends BaseViewModel<ActionBarViewSnapshot, EditHistoryActionBarViewModelProps>
implements ActionBarViewActions
{
public constructor(props: EditHistoryActionBarViewModelProps) {
super(props, EditHistoryActionBarViewModel.buildSnapshot(props));
}
private static buildSnapshot(props: EditHistoryActionBarViewModelProps): ActionBarViewSnapshot {
const actions: ActionBarAction[] = [];
if (props.canRemove) {
actions.push(ActionBarAction.Remove);
}
if (props.showViewSource) {
actions.push(ActionBarAction.ViewSource);
}
return {
actions,
presentation: "label",
isDownloadEncrypted: false,
isDownloadLoading: false,
isPinned: false,
isQuoteExpanded: false,
isThreadReplyAllowed: true,
};
}
/** Updates props and rebuilds the derived action-bar snapshot. */
public setProps(newProps: Partial<EditHistoryActionBarViewModelProps>): void {
this.props = {
...this.props,
...newProps,
};
this.snapshot.merge(EditHistoryActionBarViewModel.buildSnapshot(this.props));
}
/** Forwards the remove action using the triggering button as the anchor. */
public onRemoveClick = (anchor: HTMLElement | null): void => {
this.props.onRemoveClick?.(anchor);
};
/** Forwards the view source action using the triggering button as the anchor. */
public onViewSourceClick = (anchor: HTMLElement | null): void => {
this.props.onViewSourceClick?.(anchor);
};
}