indicator fixes

- indicator animation ignored on 'resize' event
- fixed initial rendering
- working with element ref insead of document.querySelector

src/views/Wallet/components/TopNavigationAccount/components/Indicator/index.js

@@ -1,18 +1,20 @@
 /* @flow */
 
-import styled from 'styled-components';
+import styled, { css } from 'styled-components';
 import colors from 'config/colors';
 import React, { PureComponent } from 'react';
 
 type Props = {
-
+    pathname: string;
+    wrapper: ?HTMLElement;
 }
 
 type State = {
     style: {
         width: number;
         left: number;
-    }
+    },
+    shouldAnimate: boolean,
 }
 
 const Wrapper = styled.div`
@@ -22,7 +24,9 @@ const Wrapper = styled.div`
     width: 100px;
     height: 2px;
     background: ${colors.GREEN_PRIMARY};
-    transition: all 0.3s ease-in-out;
+    ${props => props.animation && css`
+        transition: all 0.3s ease-in-out;
+    `}
 `;
 
 class Indicator extends PureComponent<Props, State> {
@@ -34,52 +38,62 @@ class Indicator extends PureComponent<Props, State> {
                 width: 0,
                 left: 0,
             },
+            shouldAnimate: false,
         };
 
-        this.reposition = this.reposition.bind(this);
+        this.handleResize = this.handleResize.bind(this);
     }
 
     componentDidMount() {
-        this.reposition();
-        window.addEventListener('resize', this.reposition, false);
+        window.addEventListener('resize', this.handleResize, false);
+    }
+
+    componentWillReceiveProps(newProps: Props) {
+        if (this.props.pathname !== newProps.pathname) {
+            this.setState({
+                shouldAnimate: true,
+            });
+        }
     }
 
     componentDidUpdate() {
-        this.reposition();
+        this.reposition(false);
     }
 
     componentWillUnmount() {
-        window.removeEventListener('resize', this.reposition, false);
+        window.removeEventListener('resize', this.handleResize, false);
+    }
+
+    handleResize() {
+        this.reposition();
     }
 
-    reposition() {
-        const tabs = document.querySelector('.account-tabs');
-        if (!tabs) return;
-        const active = tabs.querySelector('.active');
+    handleResize: () => void;
+
+    reposition(resetAnimation: boolean = true) {
+        if (!this.props.wrapper) return;
+        const { wrapper } = this.props;
+        const active = wrapper.querySelector('.active');
         if (!active) return;
         const bounds = active.getBoundingClientRect();
+        const left = bounds.left - wrapper.getBoundingClientRect().left;
+        const { state } = this;
 
-        const left = bounds.left - tabs.getBoundingClientRect().left;
-
-        if (this.state.style.left !== left) {
+        if (state.style.left !== left) {
             this.setState({
                 style: {
                     width: bounds.width,
                     left,
                 },
+                shouldAnimate: resetAnimation ? false : state.shouldAnimate,
             });
         }
     }
 
-    reposition: () => void;
-
-    handleResize() {
-        this.reposition();
-    }
-
     render() {
+        if (!this.props.wrapper) return null;
         return (
-            <Wrapper style={this.state.style} />
+            <Wrapper style={this.state.style} animation={this.state.shouldAnimate} />
         );
     }
 }

src/views/Wallet/components/TopNavigationAccount/index.js

@@ -47,22 +47,28 @@ const StyledNavLink = styled(NavLink)`
     }
 `;
 
+class TopNavigationAccount extends React.PureComponent<Props> {
+    wrapperRefCallback = (element: ?HTMLElement) => {
+        this.wrapper = element;
+    }
 
-const TopNavigationAccount = (props: Props) => {
-    const { state, pathname } = props.location;
-    if (!state) return null;
+    wrapper: ?HTMLElement;
 
-    const basePath = `/device/${state.device}/network/${state.network}/account/${state.account}`;
+    render() {
+        const { state, pathname } = this.props.location;
+        if (!state) return null;
 
-    return (
-        <Wrapper className="account-tabs">
-            <StyledNavLink exact to={`${basePath}`}>Summary</StyledNavLink>
-            <StyledNavLink to={`${basePath}/receive`}>Receive</StyledNavLink>
-            <StyledNavLink to={`${basePath}/send`}>Send</StyledNavLink>
-            {/* <StyledNavLink to={`${basePath}/signverify`}>Sign & Verify</StyledNavLink> */}
-            <Indicator pathname={pathname} />
-        </Wrapper>
-    );
-};
+        const basePath = `/device/${state.device}/network/${state.network}/account/${state.account}`;
+        return (
+            <Wrapper className="account-tabs" innerRef={this.wrapperRefCallback}>
+                <StyledNavLink exact to={`${basePath}`}>Summary</StyledNavLink>
+                <StyledNavLink to={`${basePath}/receive`}>Receive</StyledNavLink>
+                <StyledNavLink to={`${basePath}/send`}>Send</StyledNavLink>
+                {/* <StyledNavLink to={`${basePath}/signverify`}>Sign & Verify</StyledNavLink> */}
+                <Indicator pathname={pathname} wrapper={this.wrapper} />
+            </Wrapper>
+        );
+    }
+}
 
 export default TopNavigationAccount;