**Breaking:** Fix operational context

package.json

@@ -63,7 +63,7 @@
     "roots": [
       "<rootDir>/src"
     ],
-    "testRegex": "/__tests__/.*\\.(ts|tsx|js|jsx)$",
+    "testRegex": "/.*\\.test\\.(ts|tsx|js|jsx)$",
     "setupTestFrameworkScriptFile": "jest-enzyme",
     "snapshotSerializers": [
       "enzyme-to-json/serializer"

src/Card/Card.tsx

@@ -196,10 +196,12 @@ function Card<T extends {}>(props: CardProps<T>) {
   }
 
   if (isWithTabs(props)) {
+    const { onTabChange, ...otherProps } = props
+
     return (
-      <Tabs tabs={props.tabs} activeTabName={props.activeTabName} onTabChange={props.onTabChange}>
+      <Tabs tabs={props.tabs} activeTabName={props.activeTabName} onTabChange={onTabChange}>
         {({ tabsBar, activeChildren }) => (
-          <Container {...rest}>
+          <Container {...otherProps}>
             <CardHeader
               title={
                 <TabsBarContainer>

src/Code/README.md

@@ -74,13 +74,17 @@ document.body.innerHTML = greeter(user);`}</Code>
 Sometimes, you might need to quickly copy a code snippet. Here's how.
 
 ```jsx
-<OperationalContext>
-  {({ pushMessage }) => (
+const { useOperationalContext } = require("../OperationalContext/OperationalContext")
+const ComponentWithCode = () => {
+  const { pushMessage } = useOperationalContext()
+  return (
     <Code
       syntax="typescript"
       onCopy={() => pushMessage({ type: "info", body: "Successfully Copied!" })}
       copyable
     >{`Tuuvaquae5ieroeba5eu1Dae`}</Code>
-  )}
-</OperationalContext>
+  )
+}
+
+;<ComponentWithCode />
 ```

src/Input/Input.Button.tsx

@@ -2,7 +2,7 @@ import * as React from "react"
 import CopyToClipboard from "react-copy-to-clipboard"
 
 import Icon, { IconName } from "../Icon/Icon"
-import OperationalContext from "../OperationalContext/OperationalContext.init"
+import OperationalContext from "../OperationalContext/OperationalContext"
 import styled from "../utils/styled"
 import { height } from "./Input.constants"
 

src/OperationalContext/OperationalContext.tsx

@@ -1,20 +1,38 @@
 import * as React from "react"
 
-import { Context, IMessage, MessageType, useOperationalContext, WindowSize } from "./OperationalContext.init"
+export type MessageType = "info" | "success" | "error"
 
-export interface Props {
-  children: (operationalContext: Context) => undefined | React.ReactNode
+export interface IMessage {
+  body: string
+  type: MessageType
+  onClick?: () => void
+}
+
+export interface Context {
+  pushState?: (url: string) => void
+  replaceState?: (url: string) => void
+  pushMessage: (message: IMessage) => void
+  loading: boolean
+  setLoading: (isLoading: boolean) => void
 }
 
 /**
- * This component simply wraps OperationalContext in order to allow styleguidist to pick up on
- * it and display it in the documentation page.
+ * Defining a default context value here, used below when instantiating
+ * the context consumer and provider below in order for context to be
+ * correctly detected throughout the application.
  */
-const OperationalContext: React.SFC<Props> = props => {
-  const ctx = useOperationalContext()
-  return <>{props.children({ ...ctx })}</>
+const defaultContext: Context = {
+  pushState: undefined,
+  replaceState: undefined,
+  pushMessage: (_: IMessage) => void 0,
+  loading: false,
+  setLoading: (_: boolean) => void 0,
 }
 
-export default OperationalContext
+const ctx = React.createContext(defaultContext)
 
-export { Context, WindowSize, IMessage, MessageType, useOperationalContext }
+export const { Consumer: OperationalContext, Provider } = ctx
+
+export const useOperationalContext = () => React.useContext(ctx)
+
+export default OperationalContext

src/OperationalContext/README.md

@@ -1,48 +1,21 @@
 The `OperationalContext` component provides utility methods and data that can be used inside `OperationalUI`:
 
-### Window size
-
-Child components can get access to window dimensions as follows:
-
-```jsx
-<OperationalContext>
-  {operationalContext => (
-    <p>{`The viewport is ${operationalContext.windowSize.width} pixels wide and ${
-      operationalContext.windowSize.height
-    } tall.`}</p>
-  )}
-</OperationalContext>
-```
-
-### OperationalContext Hook
+### Messages and Loaders
 
-You can get the value of `OperationalContext` in the shape of context.
+You can use `OperationalUI`'s flash- and progress bar features to automatically render and manage these universal UI elements using the `pushMessage` and `setLoadingState` methods provided in context, as shown in the code snippet below:
 
 ```jsx
 const { useOperationalContext } = require("./OperationalContext")
-const ILookPretty = () => {
-  const ctx = useOperationalContext()
-  return (
-    <p>
-      The viewport is {ctx.windowSize.width} pixels wide and {ctx.windowSize.height} tall.
-    </p>
-  )
-}
-;<ILookPretty />
-```
 
-### Messages and Loaders
+const ComponentWithContext = () => {
+  const { pushMessage, setLoading, loading } = useOperationalContext()
 
-You can use `OperationalUI`'s flash- and progress bar features to automatically render and manage these universal UI elements using the `pushMessage` and `setLoadingState` methods provided in context, as shown in the code snippet below:
-
-```jsx
-<OperationalContext>
-  {operationalContext => (
+  return (
     <div style={{ padding: 20 }}>
       <Button
         color="primary"
         onClick={() => {
-          operationalContext.pushMessage({
+          pushMessage({
             body: "Info message",
             type: "info",
           })
@@ -53,7 +26,7 @@ You can use `OperationalUI`'s flash- and progress bar features to automatically
       <Button
         color="success"
         onClick={() => {
-          operationalContext.pushMessage({
+          pushMessage({
             body: "Success message",
             type: "success",
           })
@@ -64,7 +37,7 @@ You can use `OperationalUI`'s flash- and progress bar features to automatically
       <Button
         color="error"
         onClick={() => {
-          operationalContext.pushMessage({
+          pushMessage({
             body: "Error message",
             type: "error",
           })
@@ -74,12 +47,14 @@ You can use `OperationalUI`'s flash- and progress bar features to automatically
       </Button>
       <Button
         onClick={() => {
-          operationalContext.setLoading(!operationalContext.loading)
+          setLoading(!loading)
         }}
       >
         Toggle loading state
       </Button>
     </div>
-  )}
-</OperationalContext>
+  )
+}
+
+;<ComponentWithContext />
 ```

src/OperationalUI/OperationalUI.tsx

@@ -1,15 +1,12 @@
 import { injectGlobal } from "emotion"
 import { ThemeProvider } from "emotion-theming"
-import { Cancelable } from "lodash"
-import debounce from "lodash/debounce"
 import merge from "lodash/merge"
 import * as React from "react"
 
 import ErrorBoundary from "../Internals/ErrorBoundary"
 import Message from "../Internals/Message/Message"
 import Messages from "../Internals/Messages/Messages"
-import { IMessage, MessageType, WindowSize } from "../OperationalContext/OperationalContext"
-import { Provider } from "../OperationalContext/OperationalContext.init"
+import { IMessage, MessageType, Provider } from "../OperationalContext/OperationalContext"
 import Progress from "../Progress/Progress"
 import { darken, DeepPartial } from "../utils"
 import constants, { OperationalStyleConstants } from "../utils/constants"
@@ -46,7 +43,6 @@ export interface OperationalUIProps {
 }
 
 export interface State {
-  windowSize: WindowSize
   messages: Array<{
     message: IMessage
     addedAt: number
@@ -117,10 +113,6 @@ class OperationalUI extends React.Component<OperationalUIProps, State> {
   }
 
   public state: State = {
-    windowSize: {
-      width: 0,
-      height: 0,
-    },
     messages: [],
     isLoading: false,
   }
@@ -152,25 +144,10 @@ class OperationalUI extends React.Component<OperationalUIProps, State> {
     }
   }
 
-  /**
-   * Explicit typing is required here in order to give the typescript compiler access to typings
-   * used to work out type definitions for the debounce method.
-   * @todo look into making this unnecessary.
-   */
-  public handleResize: (() => void) & Cancelable = debounce(() => {
-    this.onSetWindowSize()
-  }, 200)
-
   public setLoading = (isLoading: boolean) => {
     this.setState(() => ({ isLoading }))
   }
 
-  public onSetWindowSize = () => {
-    this.setState(() => ({
-      windowSize: { width: window.innerWidth, height: window.innerHeight },
-    }))
-  }
-
   public componentDidCatch(error: Error) {
     this.setState({ error })
     if (this.props.onError) {
@@ -182,15 +159,12 @@ class OperationalUI extends React.Component<OperationalUIProps, State> {
     if (!this.props.noBaseStyles) {
       injectGlobal(baseStylesheet(constants))
     }
-    this.onSetWindowSize()
-    window.addEventListener("resize", this.handleResize)
   }
 
   public componentWillUnmount() {
     if (this.messageTimerInterval) {
       clearInterval(this.messageTimerInterval)
     }
-    window.removeEventListener("resize", this.handleResize)
   }
 
   public render() {
@@ -207,7 +181,6 @@ class OperationalUI extends React.Component<OperationalUIProps, State> {
               pushMessage: this.pushMessage,
               loading: this.state.isLoading,
               setLoading: this.setLoading,
-              windowSize: this.state.windowSize,
             }}
           >
             <Container>