From 9a5b52036b8765a6de464d8c6294b46ebcfd604e Mon Sep 17 00:00:00 2001
From: Steve Klebanoff <steve.klebanoff@gmail.com>
Date: Wed, 31 Oct 2018 08:14:44 -0700
Subject: Tick less often, and let CSS style the transition

---
 .../src/components/simulated_progress_bar.tsx      | 26 +++++++++++++++++++---
 packages/instant/src/constants.ts                  |  2 +-
 2 files changed, 24 insertions(+), 4 deletions(-)

(limited to 'packages')

diff --git a/packages/instant/src/components/simulated_progress_bar.tsx b/packages/instant/src/components/simulated_progress_bar.tsx
index e4b08db8c..067f4093e 100644
--- a/packages/instant/src/components/simulated_progress_bar.tsx
+++ b/packages/instant/src/components/simulated_progress_bar.tsx
@@ -2,7 +2,7 @@ import * as _ from 'lodash';
 import * as React from 'react';
 
 import { PROGRESS_STALL_AT_PERCENTAGE, PROGRESS_TICK_INTERVAL_MS } from '../constants';
-import { ColorOption } from '../style/theme';
+import { ColorOption, styled } from '../style/theme';
 import { timeUtil } from '../util/time';
 
 import { Container } from './ui/container';
@@ -109,11 +109,12 @@ export class SimulatedProgressBar extends React.Component<SimulatedProgressBarPr
                     </Flex>
                 </Container>
                 <Container width="100%" backgroundColor={ColorOption.lightGrey} borderRadius="6px">
-                    <Container
-                        width={`${this.state.percentageDone}%`}
+                    <InnerProgressBarElement
+                        percentageDone={this.state.percentageDone}
                         backgroundColor={ColorOption.primaryColor}
                         borderRadius="6px"
                         height="6px"
+                        transitionTimeMs={200}
                     />
                 </Container>
             </Container>
@@ -172,3 +173,22 @@ export class SimulatedProgressBar extends React.Component<SimulatedProgressBarPr
         return percentageDone;
     }
 }
+
+interface InnerProgressBarElementProps {
+    percentageDone: number;
+    backgroundColor: ColorOption;
+    borderRadius: string;
+    height: string;
+    transitionTimeMs: number;
+}
+
+export const InnerProgressBarElement =
+    styled.div <
+    InnerProgressBarElementProps >
+    `
+    width: ${props => props.percentageDone}%;
+    background-color: ${props => props.theme[props.backgroundColor]};
+    border-radius: ${props => props.borderRadius};
+    height: ${props => props.height};
+    transition: width ${props => props.transitionTimeMs}ms ease-in-out;
+    `;
diff --git a/packages/instant/src/constants.ts b/packages/instant/src/constants.ts
index 12e592ae8..3b320ed36 100644
--- a/packages/instant/src/constants.ts
+++ b/packages/instant/src/constants.ts
@@ -8,5 +8,5 @@ export const DEFAULT_GAS_PRICE = GWEI_IN_WEI.mul(6);
 export const DEFAULT_ESTIMATED_TRANSACTION_TIME_MS = 2 * 60 * 1000; // 2 minutes
 export const ETH_GAS_STATION_API_BASE_URL = 'https://ethgasstation.info';
 export const COINBASE_API_BASE_URL = 'https://api.coinbase.com/v2';
-export const PROGRESS_TICK_INTERVAL_MS = 100;
+export const PROGRESS_TICK_INTERVAL_MS = 250;
 export const PROGRESS_STALL_AT_PERCENTAGE = 95;
-- 
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