1 files changed, 168 insertions, 0 deletions
diff --git a/app/javascript/mastodon/features/notifications/index.js b/app/javascript/mastodon/features/notifications/index.js
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index 000000000..35b430bfb
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+++ b/app/javascript/mastodon/features/notifications/index.js
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+import React from 'react';
+import { connect } from 'react-redux';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import Column from '../../components/column';
+import ColumnHeader from '../../components/column_header';
+import { expandNotifications, scrollTopNotifications } from '../../actions/notifications';
+import { addColumn, removeColumn, moveColumn } from '../../actions/columns';
+import NotificationContainer from './containers/notification_container';
+import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
+import ColumnSettingsContainer from './containers/column_settings_container';
+import { createSelector } from 'reselect';
+import { List as ImmutableList } from 'immutable';
+import { debounce } from 'lodash';
+import ScrollableList from '../../components/scrollable_list';
+
+const messages = defineMessages({
+  title: { id: 'column.notifications', defaultMessage: 'Notifications' },
+});
+
+const getNotifications = createSelector([
+  state => ImmutableList(state.getIn(['settings', 'notifications', 'shows']).filter(item => !item).keys()),
+  state => state.getIn(['notifications', 'items']),
+], (excludedTypes, notifications) => notifications.filterNot(item => excludedTypes.includes(item.get('type'))));
+
+const mapStateToProps = state => ({
+  notifications: getNotifications(state),
+  isLoading: state.getIn(['notifications', 'isLoading'], true),
+  isUnread: state.getIn(['notifications', 'unread']) > 0,
+  hasMore: !!state.getIn(['notifications', 'next']),
+});
+
+@connect(mapStateToProps)
+@injectIntl
+export default class Notifications extends React.PureComponent {
+
+  static propTypes = {
+    columnId: PropTypes.string,
+    notifications: ImmutablePropTypes.list.isRequired,
+    dispatch: PropTypes.func.isRequired,
+    shouldUpdateScroll: PropTypes.func,
+    intl: PropTypes.object.isRequired,
+    isLoading: PropTypes.bool,
+    isUnread: PropTypes.bool,
+    multiColumn: PropTypes.bool,
+    hasMore: PropTypes.bool,
+  };
+
+  static defaultProps = {
+    trackScroll: true,
+  };
+
+  handleScrollToBottom = debounce(() => {
+    this.props.dispatch(scrollTopNotifications(false));
+    this.props.dispatch(expandNotifications());
+  }, 300, { leading: true });
+
+  handleScrollToTop = debounce(() => {
+    this.props.dispatch(scrollTopNotifications(true));
+  }, 100);
+
+  handleScroll = debounce(() => {
+    this.props.dispatch(scrollTopNotifications(false));
+  }, 100);
+
+  handlePin = () => {
+    const { columnId, dispatch } = this.props;
+
+    if (columnId) {
+      dispatch(removeColumn(columnId));
+    } else {
+      dispatch(addColumn('NOTIFICATIONS', {}));
+    }
+  }
+
+  handleMove = (dir) => {
+    const { columnId, dispatch } = this.props;
+    dispatch(moveColumn(columnId, dir));
+  }
+
+  handleHeaderClick = () => {
+    this.column.scrollTop();
+  }
+
+  setColumnRef = c => {
+    this.column = c;
+  }
+
+  handleMoveUp = id => {
+    const elementIndex = this.props.notifications.findIndex(item => item.get('id') === id) - 1;
+    this._selectChild(elementIndex);
+  }
+
+  handleMoveDown = id => {
+    const elementIndex = this.props.notifications.findIndex(item => item.get('id') === id) + 1;
+    this._selectChild(elementIndex);
+  }
+
+  _selectChild (index) {
+    const element = this.column.node.querySelector(`article:nth-of-type(${index + 1}) .focusable`);
+
+    if (element) {
+      element.focus();
+    }
+  }
+
+  render () {
+    const { intl, notifications, shouldUpdateScroll, isLoading, isUnread, columnId, multiColumn, hasMore } = this.props;
+    const pinned = !!columnId;
+    const emptyMessage = <FormattedMessage id='empty_column.notifications' defaultMessage="You don't have any notifications yet. Interact with others to start the conversation." />;
+
+    let scrollableContent = null;
+
+    if (isLoading && this.scrollableContent) {
+      scrollableContent = this.scrollableContent;
+    } else if (notifications.size > 0 || hasMore) {
+      scrollableContent = notifications.map((item) => (
+        <NotificationContainer
+          key={item.get('id')}
+          notification={item}
+          accountId={item.get('account')}
+          onMoveUp={this.handleMoveUp}
+          onMoveDown={this.handleMoveDown}
+        />
+      ));
+    } else {
+      scrollableContent = null;
+    }
+
+    this.scrollableContent = scrollableContent;
+
+    const scrollContainer = (
+      <ScrollableList
+        scrollKey={`notifications-${columnId}`}
+        trackScroll={!pinned}
+        isLoading={isLoading}
+        hasMore={hasMore}
+        emptyMessage={emptyMessage}
+        onScrollToBottom={this.handleScrollToBottom}
+        onScrollToTop={this.handleScrollToTop}
+        onScroll={this.handleScroll}
+        shouldUpdateScroll={shouldUpdateScroll}
+      >
+        {scrollableContent}
+      </ScrollableList>
+    );
+
+    return (
+      <Column ref={this.setColumnRef}>
+        <ColumnHeader
+          icon='bell'
+          active={isUnread}
+          title={intl.formatMessage(messages.title)}
+          onPin={this.handlePin}
+          onMove={this.handleMove}
+          onClick={this.handleHeaderClick}
+          pinned={pinned}
+          multiColumn={multiColumn}
+        >
+          <ColumnSettingsContainer />
+        </ColumnHeader>
+
+        {scrollContainer}
+      </Column>
+    );
+  }
+
+}