group member leave group

frontend/src/components/dialog/leave-group-dialog.js

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+import React from 'react';
+import PropTypes from 'prop-types';
+import { gettext, username } from '../../utils/constants';
+import { seafileAPI } from '../../utils/seafile-api';
+import { Modal, ModalHeader, ModalBody, ModalFooter, Button } from 'reactstrap';
+
+class LeaveGroupDialog extends React.Component {
+
+  constructor(props) {
+    super(props);
+  }
+
+  dismissGroup = () => {
+    let that = this;
+    seafileAPI.quitGroup(this.props.groupID, username).then((res)=> {
+      that.props.onGroupChanged();
+    });
+  }
+
+  render() {
+    return(
+      <Modal isOpen={true} toggle={this.props.toggleLeaveGroupDialog}>
+        <ModalHeader toggle={this.props.toggleLeaveGroupDialog}>{gettext('Leave Group')}</ModalHeader>
+        <ModalBody>
+          <span>{gettext('Really want to leave this group?')}</span>
+        </ModalBody>
+        <ModalFooter>
+          <Button color="secondary" onClick={this.props.toggleLeaveGroupDialog}>{gettext('Cancel')}</Button>
+          <Button color="primary" onClick={this.dismissGroup}>{gettext('Leave')}</Button>
+        </ModalFooter>
+      </Modal>
+    );
+  }
+}
+
+const LeaveGroupDialogPropTypes = {
+  toggleLeaveGroupDialog: PropTypes.func.isRequired,
+  groupID: PropTypes.string.isRequired,
+  onGroupChanged: PropTypes.func.isRequired,
+};
+
+LeaveGroupDialog.propTypes = LeaveGroupDialogPropTypes;
+
+export default LeaveGroupDialog;