Version History (#768)

* Stash. Super rough progress

* Stash

* 'h' how toggles history panel
Add documents.restore endpoint

* Add tests for documents.restore endpoint

* Document restore endpoint

* Tiding, RevisionMenu, remove scroll dep

* Add history menu item

* Paginate loading

* Fixed: Error boundary styling
Select first revision faster

* Diff summary, styling

* Add history loading placeholder
Fix move modal not opening

* Fixes: Refreshing page on specific revision

* documentation for document.revision

* Better handle versions with no text changes (will no longer be created)

app/components/DocumentHistory/components/DiffSummary.js

@@ -0,0 +1,58 @@
+// @flow
+import * as React from 'react';
+import styled from 'styled-components';
+import Flex from 'shared/components/Flex';
+
+type Props = {
+  added: number,
+  removed: number,
+  max: number,
+  color?: string,
+  width: number,
+};
+
+export default function DiffSummary({
+  added,
+  removed,
+  max,
+  color,
+  width = 180,
+}: Props) {
+  const summary = [];
+  if (added) summary.push(`+${added}`);
+  if (removed) summary.push(`-${removed}`);
+  const hasChanges = !!summary.length;
+
+  return (
+    <Flex align="center">
+      {hasChanges && (
+        <Diff>
+          <Bar color={color} style={{ width: `${added / max * width}px` }} />
+          <Bar color={color} style={{ width: `${removed / max * width}px` }} />
+        </Diff>
+      )}
+      <Summary>{hasChanges ? summary.join(', ') : 'No changes'}</Summary>
+    </Flex>
+  );
+}
+
+const Summary = styled.div`
+  display: inline-block;
+  font-size: 10px;
+  opacity: 0.5;
+  flex-grow: 100;
+  text-transform: uppercase;
+`;
+
+const Diff = styled(Flex)`
+  height: 6px;
+  margin-right: 2px;
+`;
+
+const Bar = styled.div`
+  display: inline-block;
+  background: ${props => props.color || props.theme.text};
+  height: 100%;
+  opacity: 0.3;
+  margin-right: 1px;
+`;

app/components/DocumentHistory/components/Revision.js

@@ -0,0 +1,80 @@
+// @flow
+import * as React from 'react';
+import { NavLink } from 'react-router-dom';
+import styled, { withTheme } from 'styled-components';
+import format from 'date-fns/format';
+import { MoreIcon } from 'outline-icons';
+
+import Flex from 'shared/components/Flex';
+import Time from 'shared/components/Time';
+import Avatar from 'components/Avatar';
+import RevisionMenu from 'menus/RevisionMenu';
+import DiffSummary from './DiffSummary';
+
+import { documentHistoryUrl } from 'utils/routeHelpers';
+
+class Revision extends React.Component<*> {
+  render() {
+    const { revision, document, maxChanges, showMenu, theme } = this.props;
+
+    return (
+      <StyledNavLink
+        to={documentHistoryUrl(document, revision.id)}
+        activeStyle={{ background: theme.primary, color: theme.white }}
+      >
+        <Author>
+          <StyledAvatar src={revision.createdBy.avatarUrl} />{' '}
+          {revision.createdBy.name}
+        </Author>
+        <Meta>
+          <Time dateTime={revision.createdAt}>
+            {format(revision.createdAt, 'MMMM Do, YYYY h:mm a')}
+          </Time>
+        </Meta>
+        <DiffSummary {...revision.diff} max={maxChanges} />
+        {showMenu && (
+          <StyledRevisionMenu
+            document={document}
+            revision={revision}
+            label={<MoreIcon color={theme.white} />}
+          />
+        )}
+      </StyledNavLink>
+    );
+  }
+}
+
+const StyledAvatar = styled(Avatar)`
+  border-color: transparent;
+  margin-right: 4px;
+`;
+
+const StyledRevisionMenu = styled(RevisionMenu)`
+  position: absolute;
+  right: 16px;
+  top: 16px;
+`;
+
+const StyledNavLink = styled(NavLink)`
+  color: ${props => props.theme.text};
+  display: block;
+  padding: 16px;
+  font-size: 15px;
+  position: relative;
+  height: 100px;
+`;
+
+const Author = styled(Flex)`
+  font-weight: 500;
+  padding: 0;
+  margin: 0;
+`;
+
+const Meta = styled.p`
+  font-size: 14px;
+  opacity: 0.75;
+  margin: 0 0 2px;
+  padding: 0;
+`;
+
+export default withTheme(Revision);