Add preset feature (#595)

* Add preset feature without create

* fix lint errors

* Add presets to Editor state

* add remove, update -> apply, omit presets

* replace name with index, add undo functionality

* fix reduce function

* Tweaks:

- Make remove filter setState atomic
- Remove broken sCU in BackgroundSelect
- Touch up style of arrow functions a little
- Remove titleBar from default settings
- Don't expose SETTINGS_KEYS
- Use hasOwnProperty instead of includes()

* refactor preset state into Settings

* move format code into editor and make it work again

* omit custom in applyPreset

* move presets array state into Settings

* keep custom sCU in BackgroundSelect

* pull out inline objects

* revert pages/index

* increase Presets font-size, remove margin-top

* Add ability to create presets

* also enable passing exportSize as prop

* move selectedPreset back into Settings (my bad Sean)

* replace splice with filter, getSavedX -> getX

* Revert "move selectedPreset back into Settings (my bad Sean)"

This reverts commit ae5da4700ea36ad7c31e697e83a2724be4b448f4.

* make sure background updates remove selected preset

* selectedPreset -> preset

* use onChange instead of selectPreset

* use preset id's instead of indexes

* bug fixes

* use disabled instead of pointer-events

* make .settings-presets-applied flex 💪

* make .settings-presets-arrow flex 💪

* move getPresets outside of `setState`

* move inline styles to style tag

* refactor using omitBy and isFunction

* remove lodash.isfunction

* fix applyPreset to disclude preset field

* move omit to getSettingsFromProps

* replace lodash.omit with omitBy solution

* .includes -> .indexOf

* add default preset and presetApplied state

* fix lint error

* remove presetApplied

* add more default presets

* fix default preset functionality

* tweaks

* preserve preset list scrollLeft b/w updates with a hack

* Use ref for preset content

* remove forwardRef

components/BackgroundSelect.js

@@ -22,10 +22,11 @@ class BackgroundSelect extends React.Component {
   }
 
   shouldComponentUpdate(prevProps, prevState) {
-    return (
-      prevState.isVisible !== this.state.isVisible ||
-      (prevState.isVisible && shallowCompare(this, prevProps, prevState))
-    )
+    return [
+      prevState.isVisible !== this.state.isVisible,
+      prevProps.color !== this.props.color,
+      prevState.isVisible && shallowCompare(this, prevProps, prevState)
+    ].some(Boolean)
   }
 
   toggle() {

components/Editor.js

@@ -7,7 +7,6 @@ import domtoimage from 'dom-to-image'
 import ReadFileDropContainer, { DATA_URL, TEXT } from 'dropperx'
 import Spinner from 'react-spinner'
 import shallowCompare from 'react-addons-shallow-compare'
-import omit from 'lodash.omit'
 
 // Ours
 import Button from './Button'
@@ -31,13 +30,19 @@ import {
   EXPORT_SIZES_HASH,
   DEFAULT_CODE,
   DEFAULT_SETTINGS,
-  DEFAULT_LANGUAGE
+  DEFAULT_LANGUAGE,
+  DEFAULT_PRESET_ID
 } from '../lib/constants'
 import { serializeState, getQueryStringState } from '../lib/routing'
-import { getState, escapeHtml, unescapeHtml, formatCode } from '../lib/util'
+import { getSettings, escapeHtml, unescapeHtml, formatCode, omit } from '../lib/util'
 import LanguageIcon from './svg/Language'
 import ThemeIcon from './svg/Theme'
 
+const themeIcon = <ThemeIcon />
+const languageIcon = <LanguageIcon />
+
+const tweetButtonStyle = { marginRight: '8px' }
+
 class Editor extends React.Component {
   constructor(props) {
     super(props)
@@ -46,15 +51,13 @@ class Editor extends React.Component {
       loading: true,
       uploading: false,
       code: props.content,
-      online: true
+      online: true,
+      preset: DEFAULT_PRESET_ID
     }
 
     this.export = this.export.bind(this)
     this.upload = this.upload.bind(this)
     this.updateSetting = this.updateSetting.bind(this)
-    this.updateCode = this.updateSetting.bind(this, 'code')
-    this.updateAspectRatio = this.updateSetting.bind(this, 'aspectRatio')
-    this.updateTitleBar = this.updateSetting.bind(this, 'titleBar')
     this.updateTheme = this.updateTheme.bind(this)
     this.updateLanguage = this.updateLanguage.bind(this)
     this.updateBackground = this.updateBackground.bind(this)
@@ -62,8 +65,6 @@ class Editor extends React.Component {
     this.getCarbonImage = this.getCarbonImage.bind(this)
     this.onDrop = this.onDrop.bind(this)
 
-    this.setOffline = () => this.setState({ online: false })
-    this.setOnline = () => this.setState({ online: true })
     this.innerRef = node => (this.carbonNode = node)
   }
 
@@ -89,7 +90,7 @@ class Editor extends React.Component {
 
     const newState = {
       // Load from localStorage
-      ...getState(localStorage),
+      ...getSettings(localStorage),
       // and then URL params
       ...initialState,
       loading: false,
@@ -119,7 +120,20 @@ class Editor extends React.Component {
     }
   }
 
-  async getCarbonImage({ format, type } = { format: 'png' }) {
+  updateCode = code => this.setState({ code })
+  updateAspectRatio = aspectRatio => this.setState({ aspectRatio })
+  updateTitleBar = titleBar => this.setState({ titleBar })
+  setOffline = () => this.setState({ online: false })
+  setOnline = () => this.setState({ online: true })
+
+  async getCarbonImage(
+    {
+      format,
+      type,
+      squared = this.state.squaredImage,
+      exportSize = (EXPORT_SIZES_HASH[this.state.exportSize] || DEFAULT_EXPORT_SIZE).value
+    } = { format: 'png' }
+  ) {
     // if safari, get image from api
     const isPNG = format !== 'svg'
     if (
@@ -134,8 +148,6 @@ class Editor extends React.Component {
 
     const node = this.carbonNode
 
-    const exportSize = (EXPORT_SIZES_HASH[this.state.exportSize] || DEFAULT_EXPORT_SIZE).value
-
     const map = new Map()
     const undoMap = value => {
       map.forEach((value, node) => (node.innerText = value))
@@ -152,15 +164,13 @@ class Editor extends React.Component {
     }
 
     const width = node.offsetWidth * exportSize
-    const height = this.state.squaredImage
-      ? node.offsetWidth * exportSize
-      : node.offsetHeight * exportSize
+    const height = squared ? node.offsetWidth * exportSize : node.offsetHeight * exportSize
 
     const config = {
       style: {
         transform: `scale(${exportSize})`,
         'transform-origin': 'center',
-        background: this.state.squaredImage ? this.state.backgroundColor : 'none'
+        background: squared ? this.state.backgroundColor : 'none'
       },
       filter: n => {
         if (n.className) {
@@ -192,8 +202,6 @@ class Editor extends React.Component {
 
       // Twitter needs regular dataurls
       return await domtoimage.toPng(node, config)
-    } catch (error) {
-      throw error
     } finally {
       undoMap()
     }
@@ -201,6 +209,9 @@ class Editor extends React.Component {
 
   updateSetting(key, value) {
     this.setState({ [key]: value })
+    if (Object.prototype.hasOwnProperty.call(DEFAULT_SETTINGS, key)) {
+      this.setState({ preset: null })
+    }
   }
 
   export(format = 'png') {
@@ -220,7 +231,7 @@ class Editor extends React.Component {
   }
 
   resetDefaultSettings() {
-    this.setState(DEFAULT_SETTINGS)
+    this.setState({ ...DEFAULT_SETTINGS, preset: DEFAULT_PRESET_ID })
     this.props.onReset()
   }
 
@@ -238,7 +249,8 @@ class Editor extends React.Component {
       this.setState({
         backgroundImage: file.content,
         backgroundImageSelection: null,
-        backgroundMode: 'image'
+        backgroundMode: 'image',
+        preset: null
       })
     } else {
       this.setState({ code: file.content, language: 'auto' })
@@ -257,10 +269,11 @@ class Editor extends React.Component {
     if (photographer) {
       this.setState(({ code = DEFAULT_CODE }) => ({
         ...changes,
-        code: code + `\n\n// Photo by ${photographer.name} on Unsplash`
+        code: code + `\n\n// Photo by ${photographer.name} on Unsplash`,
+        preset: null
       }))
     } else {
-      this.setState(changes)
+      this.setState({ ...changes, preset: null })
     }
   }
 
@@ -271,6 +284,8 @@ class Editor extends React.Component {
         // create toast here in the future
       })
 
+  applyPreset = ({ id: preset, ...settings }) => this.setState({ preset, ...settings })
+
   render() {
     const {
       loading,
@@ -302,20 +317,20 @@ class Editor extends React.Component {
       )
     }
 
-    const config = omit(this.state, ['code', 'aspectRatio'])
+    const config = omit(this.state, ['code', 'aspectRatio', 'titleBar'])
 
     return (
       <React.Fragment>
         <div className="editor">
           <Toolbar>
             <Dropdown
-              icon={<ThemeIcon />}
+              icon={themeIcon}
               selected={THEMES_HASH[theme] || DEFAULT_THEME}
               list={THEMES}
               onChange={this.updateTheme}
             />
             <Dropdown
-              icon={<LanguageIcon />}
+              icon={languageIcon}
               selected={
                 LANGUAGE_NAME_HASH[language] ||
                 LANGUAGE_MIME_HASH[language] ||
@@ -337,6 +352,8 @@ class Editor extends React.Component {
               onChange={this.updateSetting}
               resetDefaultSettings={this.resetDefaultSettings}
               format={this.format}
+              applyPreset={this.applyPreset}
+              getCarbonImage={this.getCarbonImage}
             />
             <div className="buttons">
               {this.props.api.tweet &&
@@ -346,7 +363,7 @@ class Editor extends React.Component {
                     onClick={this.upload}
                     title={uploading ? 'Loading...' : 'Tweet'}
                     color="#57b5f9"
-                    style={{ marginRight: '8px' }}
+                    style={tweetButtonStyle}
                   />
                 )}
               <ExportMenu

components/Settings.js

@@ -1,16 +1,18 @@
 import React from 'react'
 import enhanceWithClickOutside from 'react-click-outside'
+import omitBy from 'lodash.omitby'
 
 import ThemeSelect from './ThemeSelect'
 import FontSelect from './FontSelect'
 import Slider from './Slider'
 import Toggle from './Toggle'
 import WindowPointer from './WindowPointer'
-import { COLORS } from '../lib/constants'
+import { COLORS, DEFAULT_PRESETS } from '../lib/constants'
+import { getPresets, savePresets } from '../lib/util'
 import { toggle } from '../lib/util'
 import SettingsIcon from './svg/Settings'
 import * as Arrows from './svg/Arrows'
-//import Remove from './svg/Remove'
+import Remove from './svg/Remove'
 
 const WindowSettings = React.memo(
   ({
@@ -202,31 +204,122 @@ const MenuButton = React.memo(({ name, select, selected }) => {
   )
 })
 
-/*const Presets = React.memo(({ show, presets, toggle, create, remove }) => {
+const Preset = React.memo(({ remove, apply, selected, preset }) => (
+  <div className="preset-container">
+    <button
+      className="preset-tile"
+      onClick={() => apply(preset)}
+      disabled={preset.id === selected}
+    />
+    {preset.custom ? (
+      <button className="preset-remove" onClick={() => remove(preset.id)}>
+        <Remove />
+      </button>
+    ) : null}
+    <style jsx>
+      {`
+        button {
+          outline: none;
+          border: none;
+          background: transparent;
+          cursor: pointer;
+          padding: 0;
+        }
+
+        .preset-container {
+          display: flex;
+          position: relative;
+          flex: 0 0 96px;
+          height: 96px;
+          margin-right: 8px;
+        }
+
+        .preset-tile {
+          flex: 1;
+          border-radius: 3px;
+          background-repeat: no-repeat;
+          background-position: center center;
+          background-size: contain;
+          cursor: ${preset.id === selected ? 'initial' : 'pointer'};
+          background-image: ${`url('${preset.icon}')`};
+          background-color: ${preset.icon ? 'initial' : preset.backgroundColor};
+          box-shadow: ${preset.id === selected
+            ? `inset 0px 0px 0px 2px ${COLORS.SECONDARY}`
+            : 'initial'};
+        }
+
+        .preset-remove {
+          display: flex;
+          align-items: center;
+          justify-content: center;
+          position: absolute;
+          padding: 0;
+          top: 6px;
+          right: 6px;
+          width: 11px;
+          height: 11px;
+          border-radius: 999px;
+          background-color: ${COLORS.SECONDARY};
+        }
+      `}
+    </style>
+  </div>
+))
+
+const Presets = React.memo(
+  ({ show, create, toggle, undo, presets, selected, remove, apply, applied, contentRef }) => {
+    const customPresetsLength = presets.length - DEFAULT_PRESETS.length
+
+    const disabledCreate = selected != null
+
     return (
       <div className="settings-presets">
         <div className="settings-presets-header">
           <span>Presets</span>
-        {show && <button className="settings-presets-create" onClick={create}>create +</button>}
+          {show && (
+            <button className="settings-presets-create" onClick={create} disabled={disabledCreate}>
+              create +
+            </button>
+          )}
           <button className="settings-presets-arrow" onClick={toggle}>
             {show ? <Arrows.Up /> : <Arrows.Down />}
           </button>
         </div>
-      {show && (
-        <div className="settings-presets-content">
-          {presets.map(({ id, backgroundColor, userCreated }) => (
-            <div key={id} className="settings-presets-preset" style={{
-              backgroundColor
-            }}>
-              {
-                userCreated ? <button className="settings-presets-remove" onClick={() => remove(id)}><Remove /></button> : null
-              }
-            </div>
+        {show ? (
+          <div className="settings-presets-content" ref={contentRef}>
+            {presets.filter(p => p.custom).map(preset => (
+              <Preset
+                key={preset.id}
+                remove={remove}
+                apply={apply}
+                preset={preset}
+                selected={selected}
+              />
+            ))}
+            {customPresetsLength > 0 ? <div className="settings-presets-divider" /> : null}
+            {presets.filter(p => !p.custom).map(preset => (
+              <Preset key={preset.id} apply={apply} preset={preset} selected={selected} />
             ))}
           </div>
-      )}
+        ) : null}
+        {show && applied ? (
+          <div className="settings-presets-applied">
+            <span>Preset applied!</span>
+            <button onClick={undo}>
+              undo <span>&#x21A9;</span>
+            </button>
+          </div>
+        ) : null}
         <style jsx>
           {`
+            button {
+              outline: none;
+              border: none;
+              background: transparent;
+              cursor: pointer;
+              padding: 0;
+            }
+
             .settings-presets {
               border-bottom: 1px solid ${COLORS.SECONDARY};
             }
@@ -240,7 +333,13 @@ const MenuButton = React.memo(({ name, select, selected }) => {
               align-items: center;
             }
 
-        .settings-presets-arrow, .settings-presets-create, .settings-presets-remove {
+            .settings-presets-header > span {
+              font-size: 14px;
+            }
+
+            .settings-presets-arrow,
+            .settings-presets-create,
+            .settings-presets-remove {
               cursor: pointer;
               background: transparent;
               outline: none;
@@ -251,9 +350,15 @@ const MenuButton = React.memo(({ name, select, selected }) => {
             .settings-presets-create {
               color: ${COLORS.GRAY};
               padding: 0 8px;
+              cursor: ${disabledCreate ? 'not-allowed' : 'pointer'};
+            }
+
+            .settings-presets-create:enabled:hover {
+              color: ${COLORS.SECONDARY};
             }
 
             .settings-presets-arrow {
+              display: flex;
               position: absolute;
               right: 16px;
             }
@@ -261,41 +366,61 @@ const MenuButton = React.memo(({ name, select, selected }) => {
             .settings-presets-content {
               display: flex;
               overflow-x: scroll;
-          margin: 12px 8px;
+              margin: 0 8px 12px 8px;
+              align-items: center;
+              /* https://iamsteve.me/blog/entry/using-flexbox-for-horizontal-scrolling-navigation */
+              flex-wrap: nowrap;
+              -webkit-overflow-scrolling: touch;
             }
 
-        .settings-presets-preset {
+            .settings-presets-divider {
+              height: 72px;
+              padding: 1px;
               border-radius: 3px;
-          height: 96px;
               margin-right: 8px;
-          flex: 0 0 96px;
-          position: relative;
+              background-color: ${COLORS.DARK_GRAY};
             }
 
-        .settings-presets-remove {
+            .settings-presets-applied {
               display: flex;
-          align-items: center;
-          justify-content: center;
-          position: absolute;
-          padding: 0;
-          top: 6px;
-          right: 6px;
-          width: 11px;
-          height: 11px;
-          border-radius: 999px;
+              justify-content: space-between;
               background-color: ${COLORS.SECONDARY};
+              width: 100%;
+              color: ${COLORS.BLACK};
+              padding: 4px 8px;
+            }
+
+            .settings-presets-applied button {
+              float: right;
+            }
+
+            .settings-presets-applied button span {
+              float: right;
+              margin: 1px 0 0 2px;
             }
           `}
         </style>
       </div>
     )
-})*/
+  }
+)
 
 class Settings extends React.PureComponent {
   state = {
+    presets: DEFAULT_PRESETS,
     isVisible: false,
     selectedMenu: 'Window',
-    showPresets: false
+    showPresets: false,
+    previousSettings: null
+  }
+
+  presetContentRef = React.createRef()
+
+  componentDidMount() {
+    const storedPresets = getPresets(localStorage) || []
+    this.setState(({ presets }) => ({
+      presets: [...storedPresets, ...presets]
+    }))
   }
 
   toggleVisible = () => this.setState(toggle('isVisible'))
@@ -311,7 +436,7 @@ class Settings extends React.PureComponent {
       case 'Window':
         return (
           <WindowSettings
-            onChange={this.props.onChange}
+            onChange={this.handleChange}
             windowTheme={this.props.windowTheme}
             paddingHorizontal={this.props.paddingHorizontal}
             paddingVertical={this.props.paddingVertical}
@@ -327,21 +452,90 @@ class Settings extends React.PureComponent {
       case 'Type':
         return (
           <TypeSettings
-            onChange={this.props.onChange}
+            onChange={this.handleChange}
             font={this.props.fontFamily}
             size={this.props.fontSize}
             lineHeight={this.props.lineHeight}
           />
         )
       case 'Misc':
-        return <MiscSettings format={this.props.format} reset={this.props.resetDefaultSettings} />
+        return <MiscSettings format={this.props.format} reset={this.handleReset} />
       default:
         return null
     }
   }
 
+  handleChange = (key, value) => {
+    this.props.onChange(key, value)
+    this.setState({ previousSettings: null })
+  }
+
+  handleReset = () => {
+    this.props.resetDefaultSettings()
+    this.setState({ previousSettings: null })
+  }
+
+  getSettingsFromProps = () =>
+    omitBy(this.props, (v, k) => typeof v === 'function' || k === 'preset')
+
+  applyPreset = preset => {
+    const previousSettings = this.getSettingsFromProps()
+
+    this.props.applyPreset(preset)
+
+    // TODO: this is a hack to prevent the scrollLeft position from changing when preset is applied
+    const { scrollLeft: previousScrollLeft } = this.presetContentRef.current
+    this.setState({ previousSettings }, () => {
+      this.presetContentRef.current.scrollLeft = previousScrollLeft
+    })
+  }
+
+  undoPreset = () => {
+    this.props.applyPreset({ ...this.state.previousSettings, id: null })
+    this.setState({ previousSettings: null })
+  }
+
+  removePreset = id => {
+    if (this.props.preset === id) {
+      this.props.onChange('preset', null)
+      this.setState({ previousSettings: null })
+    }
+    this.setState(
+      ({ presets }) => ({ presets: presets.filter(p => p.id !== id) }),
+      this.savePresets
+    )
+  }
+
+  createPreset = async () => {
+    const newPreset = this.getSettingsFromProps()
+
+    newPreset.id = `preset:${Math.random()
+      .toString(36)
+      .slice(2)}`
+    newPreset.custom = true
+
+    newPreset.icon = await this.props.getCarbonImage({
+      format: 'png',
+      squared: true,
+      exportSize: 1
+    })
+
+    this.props.onChange('preset', newPreset.id)
+
+    this.setState(
+      ({ presets }) => ({
+        previousSettings: null,
+        presets: [newPreset, ...presets]
+      }),
+      this.savePresets
+    )
+  }
+
+  savePresets = () => savePresets(localStorage, this.state.presets.filter(p => p.custom))
+
   render() {
-    const { isVisible, selectedMenu } = this.state
+    const { isVisible, selectedMenu, showPresets, presets, previousSettings } = this.state
+    const { preset } = this.props
 
     return (
       <div className="settings-container">
@@ -353,6 +547,18 @@ class Settings extends React.PureComponent {
         </div>
         <div className="settings-settings">
           <WindowPointer fromLeft="15px" />
+          <Presets
+            show={showPresets}
+            presets={presets}
+            selected={preset}
+            toggle={this.togglePresets}
+            apply={this.applyPreset}
+            undo={this.undoPreset}
+            remove={this.removePreset}
+            create={this.createPreset}
+            applied={!!previousSettings}
+            contentRef={this.presetContentRef}
+          />
           <div className="settings-bottom">
             <div className="settings-menu">
               <MenuButton name="Window" select={this.selectMenu} selected={selectedMenu} />
@@ -408,7 +614,7 @@ class Settings extends React.PureComponent {
               top: 52px;
               left: 0;
               border: 2px solid ${COLORS.SECONDARY};
-              width: 320px;
+              width: 324px;
               border-radius: 3px;
               background: ${COLORS.BLACK};
             }

components/WindowControls.js

@@ -40,7 +40,7 @@ export default ({ titleBar, theme, handleTitleBarChange, copyable, code }) => (
     <div className="window-title-container">
       <input
         aria-label="Image Title"
-        value={titleBar}
+        value={titleBar || ''}
         type="text"
         spellCheck="false"
         onChange={e => handleTitleBarChange(e.target.value)}

lib/constants.js

@@ -457,9 +457,9 @@ export const LANGUAGES = [
 ]
 
 export const EXPORT_SIZES = [
-  { id: '1x', name: '1x', value: '1' },
-  { id: '2x', name: '2x', value: '2' },
-  { id: '4x', name: '4x', value: '4' }
+  { id: '1x', name: '1x', value: 1 },
+  { id: '2x', name: '2x', value: 2 },
+  { id: '4x', name: '4x', value: 4 }
 ]
 
 export const EXPORT_SIZES_HASH = toHash(EXPORT_SIZES)
@@ -512,8 +512,8 @@ if (typeof window !== 'undefined' && typeof window.navigator !== 'undefined') {
 }
 
 export const DEFAULT_SETTINGS = {
-  paddingVertical: '48px',
-  paddingHorizontal: '32px',
+  paddingVertical: '56px',
+  paddingHorizontal: '56px',
   marginVertical: '45px',
   marginHorizontal: '45px',
   backgroundImage: null,
@@ -533,7 +533,103 @@ export const DEFAULT_SETTINGS = {
   widthAdjustment: true,
   lineNumbers: false,
   exportSize: '2x',
-  titleBar: '',
   watermark: false,
   squaredImage: false
 }
+
+export const DEFAULT_PRESET_ID = 'preset:4'
+
+export const DEFAULT_PRESETS = [
+  {
+    ...DEFAULT_SETTINGS,
+    icon: '/static/presets/4.png',
+    id: DEFAULT_PRESET_ID
+  },
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(74,144,226,1)',
+    dropShadow: false,
+    theme: 'material',
+    fontFamily: 'Fira Code',
+    lineHeight: '152%',
+    icon: '/static/presets/7.png',
+    id: 'preset:7'
+  },
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(248,231,28,1)',
+    dropShadow: false,
+    theme: 'blackboard',
+    fontFamily: 'Fira Code',
+    lineHeight: '152%',
+    icon: '/static/presets/8.png',
+    id: 'preset:8'
+  },
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(182,162,145,1)',
+    dropShadow: false,
+    theme: 'zenburn',
+    windowTheme: 'bw',
+    lineHeight: '152%',
+    icon: '/static/presets/9.png',
+    id: 'preset:9'
+  },
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(121,72,185,1)',
+    dropShadow: false,
+    theme: 'verminal',
+    windowTheme: 'bw',
+    fontFamily: 'Fira Code',
+    fontSize: '14px',
+    lineHeight: '143%',
+    icon: '/static/presets/0.png',
+    id: 'preset:0'
+  },
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(239,40,44,1)',
+    theme: 'one-light',
+    lineHeight: '143%',
+    icon: '/static/presets/1.png',
+    id: 'preset:1'
+  },
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(31,129,109,1)',
+    dropShadow: false,
+    theme: 'night-owl',
+    lineHeight: '143%',
+    windowControls: false,
+    icon: '/static/presets/2.png',
+    id: 'preset:2'
+  },
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(249,237,212,1)',
+    theme: 'twilight',
+    fontFamily: 'IBM Plex Mono',
+    lineHeight: '143%',
+    icon: '/static/presets/3.png',
+    id: 'preset:3'
+  },
+
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(222,171,99,1)',
+    theme: 'duotone-dark',
+    icon: '/static/presets/5.png',
+    id: 'preset:5'
+  },
+  {
+    ...DEFAULT_SETTINGS,
+    backgroundColor: 'rgba(187,187,187,1)',
+    dropShadowOffsetY: '3px',
+    dropShadowBlurRadius: '13px',
+    theme: 'solarized light',
+    windowTheme: 'sharp',
+    icon: '/static/presets/6.png',
+    id: 'preset:6'
+  }
+]

lib/util.js

@@ -1,8 +1,11 @@
 import morph from 'morphmorph'
+import omitBy from 'lodash.omitby'
 
-const KEY = 'CARBON_STATE'
+const SETTINGS_KEY = 'CARBON_SETTINGS'
+const PRESETS_KEY = 'CARBON_PRESETS'
 
-const assign = morph.assign(KEY)
+const assignSettings = morph.assign(SETTINGS_KEY)
+const assignPresets = morph.assign(PRESETS_KEY)
 
 const parse = v => {
   try {
@@ -36,12 +39,22 @@ export const unescapeHtml = s => {
 
 export const parseRGBA = obj => `rgba(${obj.r},${obj.g},${obj.b},${obj.a})`
 
-export const getState = morph.compose(
+export const getSettings = morph.compose(
   parse,
   escapeHtml,
-  morph.get(KEY)
+  morph.get(SETTINGS_KEY)
 )
-export const saveState = (window, v) => assign(window, JSON.stringify(v))
+
+export const getPresets = morph.compose(
+  parse,
+  morph.get(PRESETS_KEY)
+)
+
+export const saveSettings = (window, v) => assignSettings(window, JSON.stringify(v))
+
+export const savePresets = (window, v) => assignPresets(window, JSON.stringify(v))
+
+export const clearSettings = () => localStorage.removeItem(SETTINGS_KEY)
 
 export const capitalizeFirstLetter = s => s.charAt(0).toUpperCase() + s.slice(1)
 
@@ -65,3 +78,5 @@ export const formatCode = async code => {
     singleQuote: true
   })
 }
+
+export const omit = (object, keys) => omitBy(object, (_, k) => keys.indexOf(k) > -1)

package.json

@@ -28,7 +28,7 @@
     "graphql": "^14.0.2",
     "highlight.js": "^9.13.1",
     "lodash.debounce": "^4.0.8",
-    "lodash.omit": "^4.5.0",
+    "lodash.omitby": "^4.6.0",
     "match-sorter": "^2.3.0",
     "morphmorph": "^0.1.0",
     "ms": "^2.0.0",

pages/index.js

@@ -1,19 +1,18 @@
 // Theirs
 import React from 'react'
 import { withRouter } from 'next/router'
-import omit from 'lodash.omit'
 
 // Ours
 import Editor from '../components/Editor'
 import Page from '../components/Page'
 import api from '../lib/api'
 import { updateQueryString } from '../lib/routing'
-import { saveState } from '../lib/util'
+import { saveSettings, clearSettings, omit } from '../lib/util'
 
 class Index extends React.Component {
   onEditorUpdate = state => {
     updateQueryString(this.props.router, state)
-    saveState(
+    saveSettings(
       localStorage,
       omit(state, ['code', 'backgroundImage', 'backgroundImageSelection', 'filename'])
     )
@@ -34,7 +33,7 @@ class Index extends React.Component {
 }
 
 function onReset() {
-  localStorage.clear()
+  clearSettings()
 
   if (window.navigator && navigator.serviceWorker) {
     navigator.serviceWorker.getRegistrations().then(registrations => {

yarn.lock

@@ -4310,10 +4310,10 @@ lodash.debounce@^4.0.8:
   resolved "https://registry.yarnpkg.com/lodash.debounce/-/lodash.debounce-4.0.8.tgz#82d79bff30a67c4005ffd5e2515300ad9ca4d7af"
   integrity sha1-gteb/zCmfEAF/9XiUVMArZyk168=
 
-lodash.omit@^4.5.0:
-  version "4.5.0"
-  resolved "https://registry.yarnpkg.com/lodash.omit/-/lodash.omit-4.5.0.tgz#6eb19ae5a1ee1dd9df0b969e66ce0b7fa30b5e60"
-  integrity sha1-brGa5aHuHdnfC5aeZs4Lf6MLXmA=
+lodash.omitby@^4.6.0:
+  version "4.6.0"
+  resolved "https://registry.yarnpkg.com/lodash.omitby/-/lodash.omitby-4.6.0.tgz#5c15ff4754ad555016b53c041311e8f079204791"
+  integrity sha1-XBX/R1StVVAWtTwEExHo8HkgR5E=
 
 lodash.once@^4.1.1:
   version "4.1.1"