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instrumental/app/javascript/mastodon/reducers/modal.js

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import { MODAL_OPEN, MODAL_CLOSE } from '../actions/modal';
import { TIMELINE_DELETE } from '../actions/timelines';
import { COMPOSE_UPLOAD_CHANGE_SUCCESS } from '../actions/compose';
import { Stack as ImmutableStack, Map as ImmutableMap } from 'immutable';
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const initialState = ImmutableMap({
ignoreFocus: false,
stack: ImmutableStack(),
});
const popModal = (state, { modalType, ignoreFocus }) => {
if (modalType === undefined || modalType === state.getIn(['stack', 0, 'modalType'])) {
return state.set('ignoreFocus', !!ignoreFocus).update('stack', stack => stack.shift());
} else {
return state;
}
};
const pushModal = (state, modalType, modalProps) => {
return state.withMutations(map => {
map.set('ignoreFocus', false);
map.update('stack', stack => stack.unshift(ImmutableMap({ modalType, modalProps })));
});
};
export default function modal(state = initialState, action) {
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switch(action.type) {
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case MODAL_OPEN:
return pushModal(state, action.modalType, action.modalProps);
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case MODAL_CLOSE:
return popModal(state, action);
case COMPOSE_UPLOAD_CHANGE_SUCCESS:
return popModal(state, { modalType: 'FOCAL_POINT', ignoreFocus: false });
case TIMELINE_DELETE:
return state.update('stack', stack => stack.filterNot((modal) => modal.get('modalProps').statusId === action.id));
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default:
return state;
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}
};