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https://github.com/mastodon/mastodon
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33 lines
804 B
JavaScript
33 lines
804 B
JavaScript
import {
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MEDIA_OPEN,
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MODAL_CLOSE,
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MODAL_INDEX_DECREASE,
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MODAL_INDEX_INCREASE
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} from '../actions/modal';
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import Immutable from 'immutable';
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const initialState = Immutable.Map({
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media: null,
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index: 0,
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open: false
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});
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export default function modal(state = initialState, action) {
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switch(action.type) {
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case MEDIA_OPEN:
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return state.withMutations(map => {
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map.set('media', action.media);
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map.set('index', action.index);
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map.set('open', true);
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});
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case MODAL_CLOSE:
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return state.set('open', false);
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case MODAL_INDEX_DECREASE:
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return state.update('index', index => (index - 1) % state.get('media').size);
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case MODAL_INDEX_INCREASE:
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return state.update('index', index => (index + 1) % state.get('media').size);
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default:
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return state;
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}
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};
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