From e11fdf2899d50f091d81b2f094b4d4a853a72d13 Mon Sep 17 00:00:00 2001
From: TJ Egan <tw15egan@gmail.com>
Date: Sat, 5 Dec 2020 11:33:05 -0500
Subject: [PATCH] feat(date-picker): add warning styles, style audit fixes
 (#7368)

---
 .../components/date-picker/_date-picker.scss  | 35 +++++++++++--
 .../components/date-picker/_flatpickr.scss    |  6 ++-
 .../components/src/components/form/_form.scss |  5 +-
 .../number-input/_number-input.scss           |  2 +-
 .../components/text-input/_text-input.scss    |  2 +-
 .../__snapshots__/PublicAPI-test.js.snap      |  6 +++
 .../components/DatePicker/DatePicker-story.js | 25 +++++++++-
 .../DatePickerInput/DatePickerInput.js        | 49 +++++++++++++++++--
 8 files changed, 114 insertions(+), 16 deletions(-)

diff --git a/packages/components/src/components/date-picker/_date-picker.scss b/packages/components/src/components/date-picker/_date-picker.scss
index df81cd7f8211..4df32e81fb5c 100644
--- a/packages/components/src/components/date-picker/_date-picker.scss
+++ b/packages/components/src/components/date-picker/_date-picker.scss
@@ -42,9 +42,19 @@
     align-items: center;
   }
 
-  .#{$prefix}--date-picker.#{$prefix}--date-picker--simple {
-    .#{$prefix}--date-picker__input {
-      width: rem(120px);
+  .#{$prefix}--date-picker.#{$prefix}--date-picker--simple
+    .#{$prefix}--date-picker__input,
+  .#{$prefix}--date-picker.#{$prefix}--date-picker--simple .#{$prefix}--label {
+    width: rem(120px);
+  }
+
+  .#{$prefix}--date-picker.#{$prefix}--date-picker--simple
+    .#{$prefix}--date-picker-input__wrapper--invalid,
+  .#{$prefix}--date-picker.#{$prefix}--date-picker--simple
+    .#{$prefix}--date-picker-input__wrapper--warn {
+    .#{$prefix}--date-picker__input,
+    ~ .#{$prefix}--form-requirement {
+      width: rem(152px);
     }
   }
 
@@ -66,7 +76,6 @@
 
     position: relative;
     display: block;
-    min-width: rem(144px);
     height: rem(40px);
     padding: 0 $carbon--spacing-05;
     color: $text-01;
@@ -127,6 +136,24 @@
     }
   }
 
+  .#{$prefix}--date-picker__icon--invalid,
+  .#{$prefix}--date-picker__icon--warn {
+    cursor: auto;
+  }
+
+  .#{$prefix}--date-picker__icon--warn {
+    fill: $support-03;
+  }
+
+  .#{$prefix}--date-picker__icon--warn path:first-of-type {
+    opacity: 1;
+    fill: $carbon__black-100;
+  }
+
+  .#{$prefix}--date-picker__icon--invalid {
+    fill: $support-01;
+  }
+
   .#{$prefix}--date-picker__icon ~ .#{$prefix}--date-picker__input {
     padding-right: $carbon--spacing-09;
   }
diff --git a/packages/components/src/components/date-picker/_flatpickr.scss b/packages/components/src/components/date-picker/_flatpickr.scss
index b03757a60242..8065036fa20f 100644
--- a/packages/components/src/components/date-picker/_flatpickr.scss
+++ b/packages/components/src/components/date-picker/_flatpickr.scss
@@ -117,7 +117,6 @@
   height: rem(40px);
   display: flex;
   align-items: center;
-  margin-bottom: $carbon--spacing-02;
   background-color: transparent;
   color: $text-01;
   line-height: 1;
@@ -271,6 +270,11 @@
     border-bottom-color: $interactive-01;
     border-top-color: $interactive-01;
   }
+
+  &:active::after {
+    border-bottom-color: $interactive-04;
+    border-top-color: $interactive-04;
+  }
 }
 
 .numInputWrapper .arrowUp {
diff --git a/packages/components/src/components/form/_form.scss b/packages/components/src/components/form/_form.scss
index 48238bc1c012..99af859e4546 100644
--- a/packages/components/src/components/form/_form.scss
+++ b/packages/components/src/components/form/_form.scss
@@ -79,7 +79,8 @@
   input[data-invalid],
   .#{$prefix}--number[data-invalid] .#{$prefix}--number__input-wrapper,
   .#{$prefix}--number__input-wrapper--warning,
-  .#{$prefix}--date-picker-input__wrapper,
+  .#{$prefix}--date-picker-input__wrapper--warn,
+  .#{$prefix}--date-picker-input__wrapper--invalid,
   .#{$prefix}--time-picker--invalid,
   .#{$prefix}--text-input__field-wrapper[data-invalid],
   .#{$prefix}--text-input__field-wrapper--warning,
@@ -99,7 +100,7 @@
 
   input[data-invalid],
   .#{$prefix}--number[data-invalid] .#{$prefix}--number__input-wrapper,
-  .#{$prefix}--date-picker-input__wrapper,
+  .#{$prefix}--date-picker-input__wrapper--invalid,
   .#{$prefix}--time-picker--invalid,
   .#{$prefix}--text-input__field-wrapper[data-invalid],
   .#{$prefix}--text-area__wrapper[data-invalid],
diff --git a/packages/components/src/components/number-input/_number-input.scss b/packages/components/src/components/number-input/_number-input.scss
index d9d63364d31c..4d59ea68217b 100644
--- a/packages/components/src/components/number-input/_number-input.scss
+++ b/packages/components/src/components/number-input/_number-input.scss
@@ -164,7 +164,7 @@
     fill: $support-03;
   }
 
-  .#{$prefix}--number__invalid--warning path[data-icon-path='inner-path'] {
+  .#{$prefix}--number__invalid--warning path:first-of-type {
     opacity: 1;
     fill: $carbon__black-100;
   }
diff --git a/packages/components/src/components/text-input/_text-input.scss b/packages/components/src/components/text-input/_text-input.scss
index c232b70b59c0..a6ce22c38261 100644
--- a/packages/components/src/components/text-input/_text-input.scss
+++ b/packages/components/src/components/text-input/_text-input.scss
@@ -86,7 +86,7 @@
     .#{$prefix}--text-input__invalid-icon--warning {
       fill: $support-03;
 
-      path[data-icon-path='inner-path'] {
+      path:first-of-type {
         opacity: 1;
         fill: $carbon__black-100;
       }
diff --git a/packages/react/__tests__/__snapshots__/PublicAPI-test.js.snap b/packages/react/__tests__/__snapshots__/PublicAPI-test.js.snap
index af3cb6de95a5..6a31798544f2 100644
--- a/packages/react/__tests__/__snapshots__/PublicAPI-test.js.snap
+++ b/packages/react/__tests__/__snapshots__/PublicAPI-test.js.snap
@@ -2250,6 +2250,12 @@ Map {
       "type": Object {
         "type": "string",
       },
+      "warn": Object {
+        "type": "bool",
+      },
+      "warnText": Object {
+        "type": "string",
+      },
     },
   },
   "Dropdown" => Object {
diff --git a/packages/react/src/components/DatePicker/DatePicker-story.js b/packages/react/src/components/DatePicker/DatePicker-story.js
index 0dd92d8654d1..0f4a14394e7c 100644
--- a/packages/react/src/components/DatePicker/DatePicker-story.js
+++ b/packages/react/src/components/DatePicker/DatePicker-story.js
@@ -23,11 +23,24 @@ const sizes = {
   'Small size (sm)': 'sm',
 };
 
+const types = {
+  Simple: 'simple',
+  Single: 'single',
+  Range: 'range',
+};
+
 const props = {
   datePicker: () => ({
     dateFormat: text('The date format (dateFormat in <DatePicker>)', 'm/d/Y'),
     id: 'date-picker',
     light: boolean('Light variant (light in <DatePicker>)', false),
+    datePickerType: select(
+      'Date Picker Type (datePickerType)',
+      types,
+      'single'
+    ),
+    minDate: text('Disable dates before this date (minDate)', '11/15/2020'),
+    maxDate: text('Disabled dates after this date (maxDate)', '11/01/2040'),
   }),
   datePickerInput: () => ({
     id: 'date-picker-input-id',
@@ -53,7 +66,12 @@ const props = {
     ),
     invalidText: text(
       'Form validation UI content (invalidText in <DatePickerInput>)',
-      'A valid value is required'
+      'A valid date is required'
+    ),
+    warn: boolean('Show warning state (warn)', false),
+    warnText: text(
+      'Warning state text (warnText)',
+      'Selected dates may cause conflicts'
     ),
     iconDescription: text(
       'Icon description (iconDescription in <DatePickerInput>)',
@@ -123,8 +141,11 @@ export const Range = () => {
 Range.storyName = 'range with calendar';
 
 export const DatePickerPlayground = () => (
-  <DatePicker {...props.datePicker()} datePickerType="single">
+  <DatePicker {...props.datePicker()}>
     <DatePickerInput {...props.datePickerInput()} />
+    {props.datePicker().datePickerType === 'range' && (
+      <DatePickerInput {...props.datePickerInput()} id="date-picker-input-2" />
+    )}
   </DatePicker>
 );
 
diff --git a/packages/react/src/components/DatePickerInput/DatePickerInput.js b/packages/react/src/components/DatePickerInput/DatePickerInput.js
index c5e3c12d40ad..53287b8c06ba 100644
--- a/packages/react/src/components/DatePickerInput/DatePickerInput.js
+++ b/packages/react/src/components/DatePickerInput/DatePickerInput.js
@@ -9,6 +9,7 @@ import PropTypes from 'prop-types';
 import React, { Component } from 'react';
 import classNames from 'classnames';
 import { settings } from 'carbon-components';
+import { WarningFilled16, WarningAltFilled16 } from '@carbon/icons-react';
 import { Calendar16 } from '@carbon/icons-react';
 
 const { prefix } = settings;
@@ -106,6 +107,14 @@ export default class DatePickerInput extends Component {
      * Specify the type of the `<input>`
      */
     type: PropTypes.string,
+    /**
+     * Specify whether the control is currently in warning state
+     */
+    warn: PropTypes.bool,
+    /**
+     * Provide the text that is displayed when the control is in warning state
+     */
+    warnText: PropTypes.string,
   };
 
   static defaultProps = {
@@ -134,6 +143,8 @@ export default class DatePickerInput extends Component {
       iconDescription,
       openCalendar,
       size,
+      warn,
+      warnText,
       ...other
     } = this.props;
 
@@ -154,6 +165,11 @@ export default class DatePickerInput extends Component {
       pattern,
     };
 
+    const wrapperClasses = classNames(`${prefix}--date-picker-input__wrapper`, {
+      [`${prefix}--date-picker-input__wrapper--invalid`]: invalid,
+      [`${prefix}--date-picker-input__wrapper--warn`]: warn,
+    });
+
     const labelClasses = classNames(`${prefix}--label`, {
       [`${prefix}--visually-hidden`]: hideLabel,
       [`${prefix}--label--disabled`]: disabled,
@@ -161,12 +177,30 @@ export default class DatePickerInput extends Component {
 
     const inputClasses = classNames(`${prefix}--date-picker__input`, {
       [`${prefix}--date-picker__input--${size}`]: size,
+      [`${prefix}--date-picker__input--invalid`]: invalid,
     });
 
     const datePickerIcon = (() => {
-      if (datePickerType === 'simple') {
+      if (datePickerType === 'simple' && !invalid && !warn) {
         return;
       }
+
+      if (invalid) {
+        return (
+          <WarningFilled16
+            className={`${prefix}--date-picker__icon ${prefix}--date-picker__icon--invalid`}
+          />
+        );
+      }
+
+      if (!invalid && warn) {
+        return (
+          <WarningAltFilled16
+            className={`${prefix}--date-picker__icon ${prefix}--date-picker__icon--warn`}
+          />
+        );
+      }
+
       return (
         <Calendar16
           className={`${prefix}--date-picker__icon`}
@@ -184,9 +218,14 @@ export default class DatePickerInput extends Component {
       </label>
     ) : null;
 
-    const error = invalid ? (
-      <div className={`${prefix}--form-requirement`}>{invalidText}</div>
-    ) : null;
+    let error = null;
+    if (invalid) {
+      error = (
+        <div className={`${prefix}--form-requirement`}>{invalidText}</div>
+      );
+    } else if (warn) {
+      error = <div className={`${prefix}--form-requirement`}>{warnText}</div>;
+    }
 
     const containerClasses = classNames(`${prefix}--date-picker-container`, {
       [`${prefix}--date-picker--nolabel`]: !label,
@@ -218,7 +257,7 @@ export default class DatePickerInput extends Component {
     return (
       <div className={containerClasses}>
         {label}
-        <div className={`${prefix}--date-picker-input__wrapper`}>
+        <div className={wrapperClasses}>
           {input}
           {datePickerIcon}
         </div>