Declarative loading indicator

frontend/components/Layout/Layout.js

@@ -10,7 +10,7 @@ import { Flex } from 'reflexbox';
 import { textColor } from 'styles/constants.scss';
 
 import DropdownMenu, { MenuItem } from 'components/DropdownMenu';
-import LoadingIndicator from 'components/LoadingIndicator';
+import { LoadingIndicatorBar } from 'components/LoadingIndicator';
 
 import SidebarCollection from './components/SidebarCollection';
 import SidebarCollectionList from './components/SidebarCollectionList';
@@ -72,7 +72,7 @@ type Props = {
           ]}
         />
 
-        {this.props.ui.progressBarVisible && <LoadingIndicator />}
+        {this.props.ui.progressBarVisible && <LoadingIndicatorBar />}
 
         {this.props.notifications}
 

frontend/components/LoadingIndicator/LoadingIndicator.js

@@ -1,14 +1,15 @@
 // @flow
 import React from 'react';
+import { inject, observer } from 'mobx-react';
 
-import styles from './LoadingIndicator.scss';
+@observer class LoadingIndicator extends React.Component {
+  componentDidMount() {
+    this.props.ui.enableProgressBar();
+  }
 
-const LoadingIndicator = () => {
+  componentWillUnmount() {
-  return (
+    this.props.ui.disableProgressBar();
-    <div className={styles.loading}>
+  }
-      <div className={styles.loader} />
+}
-    </div>
-  );
-};
 
-export default LoadingIndicator;
+export default inject('ui')(LoadingIndicator);

frontend/components/LoadingIndicator/LoadingIndicator.scss

@@ -1,20 +0,0 @@
-.loader {
-  width: 100%;
-  height: 2px;
-  background-color: #03A9F4;
-}
-
-.loading {
-  position: fixed;
-  top: 0;
-  z-index: 9999;
-
-  background-color: #03A9F4;
-  width: 100%;
-  animation: loading 4s ease-in-out infinite;
-}
-
-@keyframes loading {
-  from {margin-left: -100%; z-index:100;}
-  to {margin-left: 100%; }
-}

frontend/components/LoadingIndicator/LoadingIndicatorBar.js

@@ -0,0 +1,34 @@
+// @flow
+import React from 'react';
+import styled, { keyframes } from 'styled-components';
+
+const LoadingIndicatorBar = () => {
+  return (
+    <Container>
+      <Loader />
+    </Container>
+  );
+};
+
+const loadingFrame = keyframes`
+  from {margin-left: -100%; z-index:100;}
+  to {margin-left: 100%; }
+`;
+
+const Container = styled.div`
+  position: fixed;
+  top: 0;
+  z-index: 9999;
+
+  background-color: #03A9F4;
+  width: 100%;
+  animation: ${loadingFrame} 4s ease-in-out infinite;
+`;
+
+const Loader = styled.div`
+  width: 100%;
+  height: 2px;
+  background-color: #03A9F4;
+`;
+
+export default LoadingIndicatorBar;

frontend/components/LoadingIndicator/index.js

@@ -1,3 +1,5 @@
 // @flow
 import LoadingIndicator from './LoadingIndicator';
+import LoadingIndicatorBar from './LoadingIndicatorBar';
 export default LoadingIndicator;
+export { LoadingIndicatorBar };

frontend/scenes/Document/Document.js

@@ -11,6 +11,7 @@ import DocumentsStore from 'stores/DocumentsStore';
 import Menu from './components/Menu';
 import Editor from 'components/Editor';
 import { HeaderAction, SaveAction } from 'components/Layout';
+import LoadingIndicator from 'components/LoadingIndicator';
 import PublishingInfo from 'components/PublishingInfo';
 import DocumentViews from 'components/DocumentViews';
 import PreviewLoading from 'components/PreviewLoading';
@@ -34,6 +35,10 @@ type Props = {
 @observer class Document extends Component {
   props: Props;
 
+  state = {
+    loading: false,
+  };
+
   componentDidMount() {
     this.loadDocument(this.props);
   }
@@ -90,11 +95,11 @@ type Props = {
   };
 
   onImageUploadStart() {
-    this.props.ui.enableProgressBar();
+    this.setState({ loading: true });
   }
 
   onImageUploadStop() {
-    this.props.ui.disableProgressBar();
+    this.setState({ loading: false });
   }
 
   onChange = text => {
@@ -115,6 +120,7 @@ type Props = {
     return (
       <Container column auto>
         {titleText && <PageTitle title={titleText} />}
+        {this.state.loading && <LoadingIndicator />}
         {isFetching &&
           <CenteredContent>
             <PreviewLoading />

frontend/stores/UiStore.js

@@ -5,7 +5,7 @@ import Collection from 'models/Collection';
 
 class UiStore {
   @observable activeDocument: ?Document;
-  @observable progressBarVisible: boolean = true;
+  @observable progressBarVisible: boolean = false;
   @observable editMode: boolean = false;
 
   /* Computed */