From 46d970e3627ebb64bd9b684eda918dac476e9c34 Mon Sep 17 00:00:00 2001
From: Garrett Bear <gwhisten@gmail.com>
Date: Tue, 4 Oct 2022 09:55:51 -0700
Subject: [PATCH] 15087: Add Button Base (#15998)

* 15087: Add Button Base
---
 test/env.js                                   |   8 +
 .../component-library/button-base/README.mdx  | 128 +++++++++++++
 .../button-base/button-base.js                | 138 ++++++++++++++
 .../button-base/button-base.scss              |  79 ++++++++
 .../button-base/button-base.stories.js        | 168 ++++++++++++++++++
 .../button-base/button-base.test.js           |  75 ++++++++
 .../button-base/button.constants.js           |   8 +
 .../component-library/button-base/index.js    |   2 +
 .../component-library-components.scss         |   1 +
 .../component-library/text/README.mdx         |   1 +
 .../component-library/text/text.scss          |   8 +
 ui/helpers/constants/design-system.js         |   3 +-
 12 files changed, 618 insertions(+), 1 deletion(-)
 create mode 100644 ui/components/component-library/button-base/README.mdx
 create mode 100644 ui/components/component-library/button-base/button-base.js
 create mode 100644 ui/components/component-library/button-base/button-base.scss
 create mode 100644 ui/components/component-library/button-base/button-base.stories.js
 create mode 100644 ui/components/component-library/button-base/button-base.test.js
 create mode 100644 ui/components/component-library/button-base/button.constants.js
 create mode 100644 ui/components/component-library/button-base/index.js

diff --git a/test/env.js b/test/env.js
index 38e4a6fed..0fb3e9378 100644
--- a/test/env.js
+++ b/test/env.js
@@ -1 +1,9 @@
 process.env.METAMASK_ENV = 'test';
+
+/**
+ * Used for testing components that use the Icon component 
+ * 'ui/components/component-library/icon/icon.js'
+ */
+process.env.ICON_NAMES = {
+  LOADING_FILLED: 'loading-filled',
+};
diff --git a/ui/components/component-library/button-base/README.mdx b/ui/components/component-library/button-base/README.mdx
new file mode 100644
index 000000000..f7a4ff0f7
--- /dev/null
+++ b/ui/components/component-library/button-base/README.mdx
@@ -0,0 +1,128 @@
+import { Story, Canvas, ArgsTable } from '@storybook/addon-docs';
+import { ButtonBase } from './button-base';
+
+### This is a base component. It should not be used in your feature code directly but as a "base" for other UI components
+
+# ButtonBase
+
+The `ButtonBase` is the base component for buttons.
+
+<Canvas>
+  <Story id="ui-components-component-library-button-base-button-base-stories-js--default-story" />
+</Canvas>
+
+## Props
+
+The `ButtonBase` accepts all props below as well as all [Box](/docs/ui-components-ui-box-box-stories-js--default-story#props) component props
+
+<ArgsTable of={ButtonBase} />
+
+### Size
+
+Use the `size` prop and the `SIZES` object from `./ui/helpers/constants/design-system.js`
+to change the size of `ButtonBase`. Defaults to `SIZES.MD`
+
+Optional: `BUTTON_SIZES` from `./button-base` object can be used instead of `SIZES`.
+
+Possible sizes include:
+
+- `SIZES.AUTO` inherits the font-size of the parent element.
+- `SIZES.SM` 32px
+- `SIZES.MD` 40px
+- `SIZES.LG` 48px
+
+<Canvas>
+  <Story id="ui-components-component-library-button-base-button-base-stories-js--size" />
+</Canvas>
+
+```jsx
+import { SIZES } from '../../../helpers/constants/design-system';
+import { ButtonBase } from '../ui/component-library';
+
+<ButtonBase size={SIZES.AUTO} />
+<ButtonBase size={SIZES.SM} />
+<ButtonBase size={SIZES.MD} />
+<ButtonBase size={SIZES.LG} />
+```
+
+### Block
+
+Use boolean `block` prop to quickly enable a full width block button
+
+<Canvas>
+  <Story id="ui-components-component-library-button-base-button-base-stories-js--block" />
+</Canvas>
+
+```jsx
+import { DISPLAY } from '../../../helpers/constants/design-system';
+import { ButtonBase } from '../ui/component-library';
+
+<ButtonBase>Default Button</ButtonBase>
+<ButtonBase block>Block Button</ButtonBase>
+```
+
+### As
+
+Use the `as` box prop to change the element of `ButtonBase`. Defaults to `button`.
+
+Button `as` options:
+
+- `button`
+- `a`
+
+<Canvas>
+  <Story id="ui-components-component-library-button-base-button-base-stories-js--as" />
+</Canvas>
+
+```jsx
+import { ButtonBase } from '../ui/component-library';
+
+
+<ButtonBase as="button">Button Element</ButtonBase>
+<ButtonBase as="a" href="#">
+  Anchor Element
+</ButtonBase>
+```
+
+### Disabled
+
+Use the boolean `disabled` prop to disable button
+
+<Canvas>
+  <Story id="ui-components-component-library-button-base-button-base-stories-js--disabled" />
+</Canvas>
+
+```jsx
+import { ButtonBase } from '../ui/component-library';
+
+<ButtonBase disabled>Disabled Button</ButtonBase>;
+```
+
+### Loading
+
+Use the boolean `loading` prop to set loading spinner
+
+<Canvas>
+  <Story id="ui-components-component-library-button-base-button-base-stories-js--loading" />
+</Canvas>
+
+```jsx
+import { ButtonBase } from '../ui/component-library';
+
+<ButtonBase loading>Loading Button</ButtonBase>;
+```
+
+### Icon
+
+Use the `icon` prop and the `ICON_NAMES` object from `./ui/components/component-library/icon` to select icon.
+
+<Canvas>
+  <Story id="ui-components-component-library-button-base-button-base-stories-js--icon" />
+</Canvas>
+
+```jsx
+import { ButtonBase } from '../ui/component-library';
+import { ICON_NAMES } from '../icon';
+
+<ButtonBase icon={ICON_NAMES.ADD_SQUARE_FILLED}>Button</ButtonBase>;
+```
diff --git a/ui/components/component-library/button-base/button-base.js b/ui/components/component-library/button-base/button-base.js
new file mode 100644
index 000000000..eeb19c1a2
--- /dev/null
+++ b/ui/components/component-library/button-base/button-base.js
@@ -0,0 +1,138 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import classnames from 'classnames';
+
+import Box from '../../ui/box';
+import { Icon, ICON_NAMES } from '../icon';
+import { Text } from '../text';
+
+import {
+  ALIGN_ITEMS,
+  DISPLAY,
+  JUSTIFY_CONTENT,
+  TEXT_COLORS,
+  TEXT,
+  SIZES,
+  FLEX_DIRECTION,
+} from '../../../helpers/constants/design-system';
+import { BUTTON_SIZES } from './button.constants';
+
+export const ButtonBase = ({
+  as = 'button',
+  block,
+  children,
+  className,
+  size = BUTTON_SIZES.MD,
+  icon,
+  iconPositionRight,
+  loading,
+  disabled,
+  iconProps,
+  ...props
+}) => {
+  return (
+    <Box
+      as={as}
+      paddingLeft={size === BUTTON_SIZES.AUTO ? 0 : 4}
+      paddingRight={size === BUTTON_SIZES.AUTO ? 0 : 4}
+      className={classnames(
+        'mm-button',
+        `mm-button--size-${size}`,
+        {
+          'mm-button--loading': Boolean(loading),
+          'mm-button--disabled': Boolean(disabled),
+          'mm-button--block': Boolean(block),
+        },
+        className,
+      )}
+      disabled={disabled}
+      display={DISPLAY.INLINE_FLEX}
+      justifyContent={JUSTIFY_CONTENT.CENTER}
+      alignItems={ALIGN_ITEMS.CENTER}
+      {...props}
+    >
+      <Text
+        as="span"
+        className="mm-button__content"
+        alignItems={ALIGN_ITEMS.CENTER}
+        justifyContent={JUSTIFY_CONTENT.CENTER}
+        flexDirection={
+          iconPositionRight ? FLEX_DIRECTION.ROW_REVERSE : FLEX_DIRECTION.ROW
+        }
+        gap={2}
+        variant={size === BUTTON_SIZES.AUTO ? TEXT.INHERIT : TEXT.BODY_MD}
+        color={TEXT_COLORS.INHERIT}
+      >
+        {icon && (
+          <Icon
+            name={icon}
+            size={size === BUTTON_SIZES.AUTO ? SIZES.AUTO : SIZES.SM}
+            {...iconProps}
+          />
+        )}
+        {children}
+      </Text>
+      {loading && (
+        <Icon
+          className="mm-button__icon-loading"
+          name={ICON_NAMES.LOADING_FILLED}
+          size={size === BUTTON_SIZES.AUTO ? SIZES.AUTO : SIZES.MD}
+        />
+      )}
+    </Box>
+  );
+};
+
+ButtonBase.propTypes = {
+  /**
+   * The polymorphic `as` prop allows you to change the root HTML element of the Button component between `button` and `a` tag
+   */
+  as: PropTypes.string,
+  /**
+   * Boolean prop to quickly activate box prop display block
+   */
+  block: PropTypes.bool,
+  /**
+   * The children to be rendered inside the ButtonBase
+   */
+  children: PropTypes.node,
+  /**
+   * An additional className to apply to the ButtonBase.
+   */
+  className: PropTypes.string,
+  /**
+   * Boolean to disable button
+   */
+  disabled: PropTypes.bool,
+  /**
+   * Add icon to left side of button text passing icon name
+   * The name of the icon to display. Should be one of ICON_NAMES
+   */
+  icon: PropTypes.string, // Can't set PropTypes.oneOf(ICON_NAMES) because ICON_NAMES is an environment variable
+  /**
+   * Boolean that when true will position the icon on right of children
+   * Icon default position left
+   */
+  iconPositionRight: PropTypes.bool,
+  /**
+   * iconProps accepts all the props from Icon
+   */
+  iconProps: Icon.propTypes,
+  /**
+   * Boolean to show loading spinner in button
+   */
+  loading: PropTypes.bool,
+  /**
+   * The size of the ButtonBase.
+   * Possible values could be 'SIZES.AUTO', 'SIZES.SM', 'SIZES.MD', 'SIZES.LG',
+   */
+  size: PropTypes.oneOf(Object.values(BUTTON_SIZES)),
+  /**
+   * Addition style properties to apply to the button.
+   */
+  style: PropTypes.object,
+  /**
+   * ButtonBase accepts all the props from Box
+   */
+  ...Box.propTypes,
+};
diff --git a/ui/components/component-library/button-base/button-base.scss b/ui/components/component-library/button-base/button-base.scss
new file mode 100644
index 000000000..9e4bd0282
--- /dev/null
+++ b/ui/components/component-library/button-base/button-base.scss
@@ -0,0 +1,79 @@
+.mm-button {
+  position: relative;
+  height: 40px;
+  padding: 0;
+  border-radius: 999px;
+  cursor: pointer;
+  color: var(--color-text-default);
+  background-color: var(--brand-colors-grey-grey100);
+  vertical-align: middle;
+  user-select: none;
+
+  &:active,
+  &:hover {
+    color: var(--color-text-default);
+  }
+
+  &--block {
+    display: block;
+    width: 100%;
+  }
+
+  &__content {
+    height: 100%;
+  }
+
+
+  &--size-sm {
+    height: 32px;
+  }
+
+  &--size-md {
+    height: 40px;
+  }
+
+  &--size-lg {
+    height: 48px;
+  }
+
+  &--size-auto {
+    height: auto;
+    background-color: transparent;
+    border-radius: 0;
+    vertical-align: top;
+    font-family: inherit;
+    font-weight: inherit;
+    font-size: inherit;
+    line-height: inherit;
+    letter-spacing: inherit;
+  }
+
+  &--loading {
+    cursor: not-allowed;
+  }
+
+  &--loading &__content {
+    color: transparent;
+  }
+
+  &--disabled,
+  &:disabled {
+    opacity: 0.3;
+    cursor: not-allowed;
+  }
+
+  &__icon-loading {
+    position: absolute;
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    animation: spinner 1.2s linear infinite;
+  }
+}
+
+
+
+@keyframes spinner {
+  to { transform: translate(-50%, -50%) rotate(360deg); }
+}
+
diff --git a/ui/components/component-library/button-base/button-base.stories.js b/ui/components/component-library/button-base/button-base.stories.js
new file mode 100644
index 000000000..320223fa8
--- /dev/null
+++ b/ui/components/component-library/button-base/button-base.stories.js
@@ -0,0 +1,168 @@
+import React from 'react';
+import {
+  ALIGN_ITEMS,
+  DISPLAY,
+  FLEX_DIRECTION,
+  SIZES,
+  TEXT,
+} from '../../../helpers/constants/design-system';
+import Box from '../../ui/box/box';
+import { ICON_NAMES } from '../icon';
+import { Text } from '../text';
+import { BUTTON_SIZES } from './button.constants';
+import { ButtonBase } from './button-base';
+import README from './README.mdx';
+
+const marginSizeControlOptions = [
+  undefined,
+  0,
+  1,
+  2,
+  3,
+  4,
+  5,
+  6,
+  7,
+  8,
+  9,
+  10,
+  11,
+  12,
+  'auto',
+];
+
+export default {
+  title: 'Components/ComponentLibrary/ButtonBase',
+  id: __filename,
+  component: ButtonBase,
+  parameters: {
+    docs: {
+      page: README,
+    },
+  },
+  argTypes: {
+    as: {
+      control: 'select',
+      options: ['button', 'a'],
+    },
+    block: {
+      control: 'boolean',
+    },
+    children: {
+      control: 'text',
+    },
+    className: {
+      control: 'text',
+    },
+    disabled: {
+      control: 'boolean',
+    },
+    icon: {
+      control: 'select',
+      options: Object.values(ICON_NAMES),
+    },
+    loading: {
+      control: 'boolean',
+    },
+    size: {
+      control: 'select',
+      options: Object.values(BUTTON_SIZES),
+    },
+    marginTop: {
+      options: marginSizeControlOptions,
+      control: 'select',
+      table: { category: 'box props' },
+    },
+    marginRight: {
+      options: marginSizeControlOptions,
+      control: 'select',
+      table: { category: 'box props' },
+    },
+    marginBottom: {
+      options: marginSizeControlOptions,
+      control: 'select',
+      table: { category: 'box props' },
+    },
+    marginLeft: {
+      options: marginSizeControlOptions,
+      control: 'select',
+      table: { category: 'box props' },
+    },
+  },
+  args: {
+    children: 'Button Base',
+  },
+};
+
+export const DefaultStory = (args) => <ButtonBase {...args} />;
+
+DefaultStory.storyName = 'Default';
+
+export const Size = (args) => (
+  <>
+    <Box
+      display={DISPLAY.FLEX}
+      alignItems={ALIGN_ITEMS.BASELINE}
+      gap={1}
+      marginBottom={2}
+    >
+      <ButtonBase {...args} size={SIZES.SM}>
+        Button SM
+      </ButtonBase>
+      <ButtonBase {...args} size={SIZES.MD}>
+        Button MD
+      </ButtonBase>
+      <ButtonBase {...args} size={SIZES.LG}>
+        Button LG
+      </ButtonBase>
+    </Box>
+    <Text variant={TEXT.BODY_SM}>
+      <ButtonBase {...args} size={SIZES.AUTO}>
+        Button Auto
+      </ButtonBase>{' '}
+      inherits the font-size of the parent element.
+    </Text>
+  </>
+);
+
+export const Block = (args) => (
+  <>
+    <ButtonBase {...args} marginBottom={2}>
+      Default Button
+    </ButtonBase>
+    <ButtonBase {...args} block marginBottom={2}>
+      Block Button
+    </ButtonBase>
+  </>
+);
+
+export const As = (args) => (
+  <Box display={DISPLAY.FLEX} flexDirection={FLEX_DIRECTION.ROW} gap={2}>
+    <ButtonBase {...args}>Button Element</ButtonBase>
+    <ButtonBase as="a" href="#" {...args}>
+      Anchor Element
+    </ButtonBase>
+  </Box>
+);
+
+export const Disabled = (args) => (
+  <ButtonBase {...args}>Disabled Button</ButtonBase>
+);
+
+Disabled.args = {
+  disabled: true,
+};
+
+export const Loading = (args) => (
+  <ButtonBase {...args}>Loading Button</ButtonBase>
+);
+
+Loading.args = {
+  loading: true,
+};
+
+export const Icon = (args) => (
+  <ButtonBase {...args} icon={ICON_NAMES.ADD_SQUARE_FILLED}>
+    Button
+  </ButtonBase>
+);
diff --git a/ui/components/component-library/button-base/button-base.test.js b/ui/components/component-library/button-base/button-base.test.js
new file mode 100644
index 000000000..5c0360433
--- /dev/null
+++ b/ui/components/component-library/button-base/button-base.test.js
@@ -0,0 +1,75 @@
+/* eslint-disable jest/require-top-level-describe */
+import { render } from '@testing-library/react';
+import React from 'react';
+import { BUTTON_SIZES } from './button.constants';
+import { ButtonBase } from './button-base';
+
+describe('ButtonBase', () => {
+  it('should render button element correctly', () => {
+    const { getByTestId, getByText, container } = render(
+      <ButtonBase data-testid="button-base">Button base</ButtonBase>,
+    );
+    expect(getByText('Button base')).toBeDefined();
+    expect(container.querySelector('button')).toBeDefined();
+    expect(getByTestId('button-base')).toHaveClass('mm-button');
+  });
+
+  it('should render anchor element correctly', () => {
+    const { getByTestId, container } = render(
+      <ButtonBase as="a" data-testid="button-base" />,
+    );
+    expect(getByTestId('button-base')).toBeDefined();
+    expect(container.querySelector('a')).toBeDefined();
+    expect(getByTestId('button-base')).toHaveClass('mm-button');
+  });
+
+  it('should render button as block', () => {
+    const { getByTestId } = render(<ButtonBase block data-testid="block" />);
+    expect(getByTestId('block')).toHaveClass(`mm-button--block`);
+  });
+
+  it('should render with different size classes', () => {
+    const { getByTestId } = render(
+      <>
+        <ButtonBase size={BUTTON_SIZES.AUTO} data-testid={BUTTON_SIZES.AUTO} />
+        <ButtonBase size={BUTTON_SIZES.SM} data-testid={BUTTON_SIZES.SM} />
+        <ButtonBase size={BUTTON_SIZES.MD} data-testid={BUTTON_SIZES.MD} />
+        <ButtonBase size={BUTTON_SIZES.LG} data-testid={BUTTON_SIZES.LG} />
+      </>,
+    );
+    expect(getByTestId(BUTTON_SIZES.AUTO)).toHaveClass(
+      `mm-button--size-${BUTTON_SIZES.AUTO}`,
+    );
+    expect(getByTestId(BUTTON_SIZES.SM)).toHaveClass(
+      `mm-button--size-${BUTTON_SIZES.SM}`,
+    );
+    expect(getByTestId(BUTTON_SIZES.MD)).toHaveClass(
+      `mm-button--size-${BUTTON_SIZES.MD}`,
+    );
+    expect(getByTestId(BUTTON_SIZES.LG)).toHaveClass(
+      `mm-button--size-${BUTTON_SIZES.LG}`,
+    );
+  });
+
+  it('should render with different button states', () => {
+    const { getByTestId } = render(
+      <>
+        <ButtonBase loading data-testid="loading" />
+        <ButtonBase disabled data-testid="disabled" />
+      </>,
+    );
+    expect(getByTestId('loading')).toHaveClass(`mm-button--loading`);
+    expect(getByTestId('disabled')).toHaveClass(`mm-button--disabled`);
+  });
+  it('should render with icon', () => {
+    const { getByTestId } = render(
+      <ButtonBase
+        data-testid="icon"
+        icon="add-square-filled"
+        iconProps={{ 'data-testid': 'base-button-icon' }}
+      />,
+    );
+
+    expect(getByTestId('base-button-icon')).toBeDefined();
+  });
+});
diff --git a/ui/components/component-library/button-base/button.constants.js b/ui/components/component-library/button-base/button.constants.js
new file mode 100644
index 000000000..bcf67e6f1
--- /dev/null
+++ b/ui/components/component-library/button-base/button.constants.js
@@ -0,0 +1,8 @@
+import { SIZES } from '../../../helpers/constants/design-system';
+
+export const BUTTON_SIZES = {
+  SM: SIZES.SM,
+  MD: SIZES.MD,
+  LG: SIZES.LG,
+  AUTO: SIZES.AUTO,
+};
diff --git a/ui/components/component-library/button-base/index.js b/ui/components/component-library/button-base/index.js
new file mode 100644
index 000000000..789a9db9d
--- /dev/null
+++ b/ui/components/component-library/button-base/index.js
@@ -0,0 +1,2 @@
+export { ButtonBase } from './button-base';
+export { BUTTON_SIZES } from './button.constants';
diff --git a/ui/components/component-library/component-library-components.scss b/ui/components/component-library/component-library-components.scss
index 09c0d7a28..835f1d842 100644
--- a/ui/components/component-library/component-library-components.scss
+++ b/ui/components/component-library/component-library-components.scss
@@ -2,5 +2,6 @@
 @import 'avatar-network/avatar-network';
 @import 'avatar-token/avatar-token';
 @import 'base-avatar/base-avatar';
+@import 'button-base/button-base';
 @import 'icon/icon';
 @import 'text/text';
diff --git a/ui/components/component-library/text/README.mdx b/ui/components/component-library/text/README.mdx
index 197cebb2b..f98b529e8 100644
--- a/ui/components/component-library/text/README.mdx
+++ b/ui/components/component-library/text/README.mdx
@@ -35,6 +35,7 @@ import { TEXT } from '../../../helpers/constants/design-system';
 <Text variant={TEXT.BODY_MD}>body-md</Text>
 <Text variant={TEXT.BODY_SM}>body-sm</Text>
 <Text variant={TEXT.BODY_XS}>body-xs</Text>
+<Text variant={TEXT.INHERIT}>inherit</Text>
 ```
 
 ### Color
diff --git a/ui/components/component-library/text/text.scss b/ui/components/component-library/text/text.scss
index 5d1ad4e01..972279570 100644
--- a/ui/components/component-library/text/text.scss
+++ b/ui/components/component-library/text/text.scss
@@ -82,6 +82,14 @@ $text-variants: (
     }
   }
 
+  &--inherit {
+    font-family: inherit;
+    font-weight: inherit;
+    font-size: inherit;
+    line-height: inherit;
+    letter-spacing: inherit;
+  }
+
   &--ellipsis {
     text-overflow: ellipsis;
     white-space: nowrap;
diff --git a/ui/helpers/constants/design-system.js b/ui/helpers/constants/design-system.js
index 4749a45af..58c142e11 100644
--- a/ui/helpers/constants/design-system.js
+++ b/ui/helpers/constants/design-system.js
@@ -161,6 +161,7 @@ export const TEXT = {
   BODY_MD: 'body-md',
   BODY_SM: 'body-sm',
   BODY_XS: 'body-xs',
+  INHERIT: 'inherit',
 };
 
 const NONE = 'none';
@@ -172,7 +173,7 @@ export const SIZES = {
   MD: 'md',
   LG: 'lg',
   XL: 'xl',
-  AUTO: 'auto', // Used for Text and Icon components to inherit the parent elements font-size
+  AUTO: 'auto', // Used for Text, Icon, and Button components to inherit the parent elements font-size
   NONE,
 };