stream-chat-react-native-core/lib/module/state-store/selection-store.js

The official React Native and Expo components for Stream Chat, a service for building chat applications

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useIsSelectionEmpty = exports.useIsSelected = exports.SelectionStore = void 0;
var _react = require("react");
var _streamChat = require("stream-chat");
var _useStateStore = require("../hooks/useStateStore");
var createInitialState = () => ({
  selectedIds: new Set()
});
class SelectionStore {
  state = new _streamChat.StateStore(createInitialState());
  select(id) {
    if (id === undefined || id === null) {
      return;
    }
    var _this$state$getLatest = this.state.getLatestValue(),
      selectedIds = _this$state$getLatest.selectedIds;
    if (selectedIds.has(id)) {
      return;
    }
    var next = new Set(selectedIds);
    next.add(id);
    this.state.partialNext({
      selectedIds: next
    });
  }
  deselect(id) {
    if (id === undefined || id === null) {
      return;
    }
    var _this$state$getLatest2 = this.state.getLatestValue(),
      selectedIds = _this$state$getLatest2.selectedIds;
    if (!selectedIds.has(id)) {
      return;
    }
    var next = new Set(selectedIds);
    next.delete(id);
    this.state.partialNext({
      selectedIds: next
    });
  }
  toggle(id) {
    if (id === undefined || id === null) {
      return;
    }
    var _this$state$getLatest3 = this.state.getLatestValue(),
      selectedIds = _this$state$getLatest3.selectedIds;
    if (selectedIds.has(id)) {
      this.deselect(id);
    } else {
      this.select(id);
    }
  }
}
exports.SelectionStore = SelectionStore;
var selectIsSelectionEmpty = state => ({
  isSelectionEmpty: state.selectedIds.size === 0
});
var useIsSelectionEmpty = store => (0, _useStateStore.useStateStore)(store.state, selectIsSelectionEmpty).isSelectionEmpty;
exports.useIsSelectionEmpty = useIsSelectionEmpty;
var useIsSelected = (store, id) => {
  var selector = (0, _react.useCallback)(state => ({
    isSelected: state.selectedIds.has(id)
  }), [id]);
  return (0, _useStateStore.useStateStore)(store.state, selector).isSelected;
};
exports.useIsSelected = useIsSelected;
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