Moving previews to client side rendering for consistency

frontend/components/Editor/components/ClickablePadding/ClickablePadding.js

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+// @flow
+import React from 'react';
+import classnames from 'classnames';
+import styles from './ClickablePadding.scss';
+
+type Props = {
+  onClick: Function,
+  grow?: boolean,
+};
+
+const ClickablePadding = (props: Props) => {
+  return (
+    <div
+      className={classnames(styles.container, { [styles.grow]: props.grow })}
+      onClick={props.onClick}
+    />
+  );
+};
+
+export default ClickablePadding;

frontend/components/Editor/components/ClickablePadding/ClickablePadding.scss

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+.container {
+  padding-top: 50px;
+  cursor: text;
+}
+
+.grow {
+  flex-grow: 1;
+}
+
+@media all and (max-width: 960px) {
+  .container {
+    padding-top: 50px;
+  }
+}

frontend/components/Editor/components/ClickablePadding/index.js

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+// @flow
+import ClickablePadding from './ClickablePadding';
+export default ClickablePadding;

frontend/components/Editor/components/Code.js

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+// @flow
+import React from 'react';
+import type { Props } from '../types';
+
+export default function Code({ children, attributes }: Props) {
+  return (
+    <pre>
+      <code {...attributes}>
+        {children}
+      </code>
+    </pre>
+  );
+}

frontend/components/Editor/components/Heading.js

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+// @flow
+import React from 'react';
+import _ from 'lodash';
+import slug from 'slug';
+import type { Node, Editor } from '../types';
+import styles from '../Editor.scss';
+
+type Props = {
+  children: React$Element<any>,
+  placeholder?: boolean,
+  parent: Node,
+  node: Node,
+  editor: Editor,
+  readOnly: boolean,
+  component?: string,
+};
+
+export default function Heading({
+  parent,
+  placeholder,
+  node,
+  editor,
+  readOnly,
+  children,
+  component = 'h1',
+}: Props) {
+  const firstHeading = parent.nodes.first() === node;
+  const showPlaceholder = placeholder && firstHeading && !node.text;
+  const slugish = readOnly && _.escape(`${component}-${slug(node.text)}`);
+  const Component = component;
+
+  return (
+    <Component className={styles.title}>
+      {children}
+      {showPlaceholder &&
+        <span className={styles.placeholder}>
+          {editor.props.placeholder}
+        </span>}
+      {slugish &&
+        <a name={slugish} className={styles.anchor} href={`#${slugish}`}>#</a>}
+    </Component>
+  );
+}

frontend/components/Editor/components/Image.js

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+// @flow
+import React from 'react';
+import type { Props } from '../types';
+
+export default function Image({ attributes, node }: Props) {
+  return (
+    <img
+      {...attributes}
+      src={node.data.get('src')}
+      alt={node.data.get('alt')}
+    />
+  );
+}

frontend/components/Editor/components/Link.js

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+// @flow
+import React from 'react';
+import type { Props } from '../types';
+
+export default function Link({ attributes, node, children }: Props) {
+  return (
+    <a {...attributes} href={node.data.get('href')}>
+      {children}
+    </a>
+  );
+}

frontend/components/Editor/components/ListItem.js

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+// @flow
+import React from 'react';
+import type { Props } from '../types';
+import TodoItem from './TodoItem';
+
+export default function ListItem({ children, node, ...props }: Props) {
+  const checked = node.data.get('checked');
+  if (checked !== undefined) {
+    return (
+      <TodoItem checked={checked} node={node} {...props}>
+        {children}
+      </TodoItem>
+    );
+  }
+  return <li>{children}</li>;
+}

frontend/components/Editor/components/TodoItem.js

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+// @flow
+import React, { Component } from 'react';
+import type { Props } from '../types';
+import styles from '../Editor.scss';
+
+export default class TodoItem extends Component {
+  props: Props & { checked: boolean };
+
+  handleChange = (ev: SyntheticInputEvent) => {
+    const checked = ev.target.checked;
+    const { editor, node } = this.props;
+    const state = editor
+      .getState()
+      .transform()
+      .setNodeByKey(node.key, { data: { checked } })
+      .apply();
+
+    editor.onChange(state);
+  };
+
+  render() {
+    const { children, checked, readOnly } = this.props;
+
+    return (
+      <li contentEditable={false} className={styles.todo}>
+        <input
+          type="checkbox"
+          checked={checked}
+          onChange={this.handleChange}
+          disabled={readOnly}
+        />
+        {' '}
+        <span contentEditable={!readOnly} suppressContentEditableWarning>
+          {children}
+        </span>
+      </li>
+    );
+  }
+}

frontend/components/Editor/components/Toolbar/Toolbar.js

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+// @flow
+import React, { Component } from 'react';
+import Portal from 'react-portal';
+import classnames from 'classnames';
+import _ from 'lodash';
+import type { State } from '../../types';
+import FormattingToolbar from './components/FormattingToolbar';
+import LinkToolbar from './components/LinkToolbar';
+import styles from './Toolbar.scss';
+
+export default class Toolbar extends Component {
+  props: {
+    state: State,
+    onChange: Function,
+  };
+
+  menu: HTMLElement;
+  state: {
+    active: boolean,
+    focused: boolean,
+    link: React$Element<any>,
+    top: string,
+    left: string,
+  };
+
+  state = {
+    active: false,
+    focused: false,
+    link: null,
+    top: '',
+    left: '',
+  };
+
+  componentDidMount = () => {
+    this.update();
+  };
+
+  componentDidUpdate = () => {
+    this.update();
+  };
+
+  handleFocus = () => {
+    this.setState({ focused: true });
+  };
+
+  handleBlur = () => {
+    this.setState({ focused: false });
+  };
+
+  get linkInSelection(): any {
+    const { state } = this.props;
+
+    try {
+      const selectedLinks = state.startBlock
+        .getInlinesAtRange(state.selection)
+        .filter(node => node.type === 'link');
+      if (selectedLinks.size) {
+        return selectedLinks.first();
+      }
+    } catch (err) {
+      //
+    }
+  }
+
+  update = () => {
+    const { state } = this.props;
+    const link = this.linkInSelection;
+
+    if (state.isBlurred || (state.isCollapsed && !link)) {
+      if (this.state.active && !this.state.focused) {
+        this.setState({ active: false, link: null, top: '', left: '' });
+      }
+      return;
+    }
+
+    // don't display toolbar for document title
+    const firstNode = state.document.nodes.first();
+    if (firstNode === state.startBlock) return;
+
+    // don't display toolbar for code blocks
+    if (state.startBlock.type === 'code') return;
+
+    const data = {
+      ...this.state,
+      active: true,
+      link,
+      focused: !!link,
+    };
+
+    if (!_.isEqual(data, this.state)) {
+      const padding = 16;
+      const selection = window.getSelection();
+      const range = selection.getRangeAt(0);
+      const rect = range.getBoundingClientRect();
+
+      if (rect.top === 0 && rect.left === 0) {
+        this.setState(data);
+        return;
+      }
+
+      const left =
+        rect.left + window.scrollX - this.menu.offsetWidth / 2 + rect.width / 2;
+      data.top = `${Math.round(rect.top + window.scrollY - this.menu.offsetHeight)}px`;
+      data.left = `${Math.round(Math.max(padding, left))}px`;
+      this.setState(data);
+    }
+  };
+
+  setRef = (ref: HTMLElement) => {
+    this.menu = ref;
+  };
+
+  render() {
+    const link = this.state.link;
+    const classes = classnames(styles.menu, {
+      [styles.active]: this.state.active,
+    });
+
+    const style = {
+      top: this.state.top,
+      left: this.state.left,
+    };
+
+    return (
+      <Portal isOpened>
+        <div className={classes} style={style} ref={this.setRef}>
+          {link &&
+            <LinkToolbar
+              {...this.props}
+              link={link}
+              onBlur={this.handleBlur}
+            />}
+          {!link &&
+            <FormattingToolbar
+              onCreateLink={this.handleFocus}
+              {...this.props}
+            />}
+        </div>
+      </Portal>
+    );
+  }
+}

frontend/components/Editor/components/Toolbar/Toolbar.scss

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+.menu {
+  padding: 8px 16px;
+  position: absolute;
+  z-index: 1;
+  top: -10000px;
+  left: -10000px;
+  opacity: 0;
+  background-color: #222;
+  border-radius: 4px;
+  transition: opacity 250ms ease-in-out, transform 250ms ease-in-out;
+  line-height: 0;
+  height: 40px;
+  min-width: 260px;
+}
+
+.active {
+  transform: translateY(-6px);
+  opacity: 1;
+}
+
+.linkEditor {
+  display: flex;
+  margin-left: -8px;
+  margin-right: -8px;
+
+  input {
+    background: rgba(255,255,255,.1);
+    border-radius: 2px;
+    padding: 5px 8px;
+    border: 0;
+    margin: 0;
+    outline: none;
+    color: #fff;
+    flex-grow: 1;
+  }
+}
+
+.button {
+  display: inline-block;
+  flex: 0;
+  width: 24px;
+  height: 24px;
+  cursor: pointer;
+  margin-left: 10px;
+  border: none;
+  background: none;
+  transition: opacity 100ms ease-in-out;
+  padding: 0;
+  opacity: .7;
+
+  &:first-child {
+    margin-left: 0;
+  }
+
+  &:hover {
+    opacity: 1;
+  }
+
+  &[data-active="true"] {
+    opacity: 1;
+  }
+}

frontend/components/Editor/components/Toolbar/components/FormattingToolbar.js

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+// @flow
+import React, { Component } from 'react';
+import styles from '../Toolbar.scss';
+import type { State } from '../../../types';
+import BoldIcon from 'components/Icon/BoldIcon';
+import CodeIcon from 'components/Icon/CodeIcon';
+import Heading1Icon from 'components/Icon/Heading1Icon';
+import Heading2Icon from 'components/Icon/Heading2Icon';
+import LinkIcon from 'components/Icon/LinkIcon';
+import StrikethroughIcon from 'components/Icon/StrikethroughIcon';
+import BulletedListIcon from 'components/Icon/BulletedListIcon';
+
+export default class FormattingToolbar extends Component {
+  props: {
+    state: State,
+    onChange: Function,
+    onCreateLink: Function,
+  };
+
+  /**
+   * Check if the current selection has a mark with `type` in it.
+   *
+   * @param {String} type
+   * @return {Boolean}
+   */
+  hasMark = (type: string) => {
+    return this.props.state.marks.some(mark => mark.type === type);
+  };
+
+  isBlock = (type: string) => {
+    return this.props.state.startBlock.type === type;
+  };
+
+  /**
+   * When a mark button is clicked, toggle the current mark.
+   *
+   * @param {Event} ev
+   * @param {String} type
+   */
+  onClickMark = (ev: SyntheticEvent, type: string) => {
+    ev.preventDefault();
+    let { state } = this.props;
+
+    state = state.transform().toggleMark(type).apply();
+    this.props.onChange(state);
+  };
+
+  onClickBlock = (ev: SyntheticEvent, type: string) => {
+    ev.preventDefault();
+    let { state } = this.props;
+
+    state = state.transform().setBlock(type).apply();
+    this.props.onChange(state);
+  };
+
+  onCreateLink = (ev: SyntheticEvent) => {
+    ev.preventDefault();
+    ev.stopPropagation();
+    let { state } = this.props;
+    const data = { href: '' };
+    state = state.transform().wrapInline({ type: 'link', data }).apply();
+    this.props.onChange(state);
+    this.props.onCreateLink();
+  };
+
+  renderMarkButton = (type: string, IconClass: Function) => {
+    const isActive = this.hasMark(type);
+    const onMouseDown = ev => this.onClickMark(ev, type);
+
+    return (
+      <button
+        className={styles.button}
+        onMouseDown={onMouseDown}
+        data-active={isActive}
+      >
+        <IconClass light />
+      </button>
+    );
+  };
+
+  renderBlockButton = (type: string, IconClass: Function) => {
+    const isActive = this.isBlock(type);
+    const onMouseDown = ev =>
+      this.onClickBlock(ev, isActive ? 'paragraph' : type);
+
+    return (
+      <button
+        className={styles.button}
+        onMouseDown={onMouseDown}
+        data-active={isActive}
+      >
+        <IconClass light />
+      </button>
+    );
+  };
+
+  render() {
+    return (
+      <span>
+        {this.renderMarkButton('bold', BoldIcon)}
+        {this.renderMarkButton('deleted', StrikethroughIcon)}
+        {this.renderBlockButton('heading1', Heading1Icon)}
+        {this.renderBlockButton('heading2', Heading2Icon)}
+        {this.renderBlockButton('bulleted-list', BulletedListIcon)}
+        {this.renderMarkButton('code', CodeIcon)}
+        <button className={styles.button} onMouseDown={this.onCreateLink}>
+          <LinkIcon light />
+        </button>
+      </span>
+    );
+  }
+}

frontend/components/Editor/components/Toolbar/components/LinkToolbar.js

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+// @flow
+import React, { Component } from 'react';
+import type { State } from '../../../types';
+import keydown from 'react-keydown';
+import styles from '../Toolbar.scss';
+import CloseIcon from 'components/Icon/CloseIcon';
+
+@keydown
+export default class LinkToolbar extends Component {
+  input: HTMLElement;
+  props: {
+    state: State,
+    link: Object,
+    onBlur: Function,
+    onChange: Function,
+  };
+
+  onKeyDown = (ev: SyntheticKeyboardEvent & SyntheticInputEvent) => {
+    switch (ev.keyCode) {
+      case 13: // enter
+        ev.preventDefault();
+        return this.save(ev.target.value);
+      case 26: // escape
+        return this.input.blur();
+      default:
+    }
+  };
+
+  removeLink = () => {
+    this.save('');
+  };
+
+  save = (href: string) => {
+    href = href.trim();
+    const transform = this.props.state.transform();
+    transform.unwrapInline('link');
+
+    if (href) {
+      const data = { href };
+      transform.wrapInline({ type: 'link', data });
+    }
+
+    const state = transform.apply();
+    this.props.onChange(state);
+    this.input.blur();
+  };
+
+  render() {
+    const href = this.props.link.data.get('href');
+    return (
+      <span className={styles.linkEditor}>
+        <input
+          ref={ref => (this.input = ref)}
+          defaultValue={href}
+          placeholder="http://"
+          onBlur={this.props.onBlur}
+          onKeyDown={this.onKeyDown}
+          autoFocus
+        />
+        <button className={styles.button} onMouseDown={this.removeLink}>
+          <CloseIcon light />
+        </button>
+      </span>
+    );
+  }
+}

frontend/components/Editor/components/Toolbar/index.js

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+// @flow
+import Toolbar from './Toolbar';
+export default Toolbar;