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-rw-r--r--app/javascript/flavours/glitch/features/composer/textarea/icons/index.js60
-rw-r--r--app/javascript/flavours/glitch/features/composer/textarea/index.js312
-rw-r--r--app/javascript/flavours/glitch/features/composer/textarea/suggestions/index.js43
-rw-r--r--app/javascript/flavours/glitch/features/composer/textarea/suggestions/item/index.js118
4 files changed, 533 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/features/composer/textarea/icons/index.js b/app/javascript/flavours/glitch/features/composer/textarea/icons/index.js
new file mode 100644
index 000000000..049cdd5cd
--- /dev/null
+++ b/app/javascript/flavours/glitch/features/composer/textarea/icons/index.js
@@ -0,0 +1,60 @@
+//  Package imports.
+import PropTypes from 'prop-types';
+import React from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import { defineMessages } from 'react-intl';
+
+//  Components.
+import Icon from 'flavours/glitch/components/icon';
+
+//  Messages.
+const messages = defineMessages({
+  localOnly: {
+    defaultMessage: 'This post is local-only',
+    id: 'advanced_options.local-only.tooltip',
+  },
+  threadedMode: {
+    defaultMessage: 'Threaded mode enabled',
+    id: 'advanced_options.threaded_mode.tooltip',
+  },
+});
+
+//  We use an array of tuples here instead of an object because it
+//  preserves order.
+const iconMap = [
+  ['do_not_federate', 'home', messages.localOnly],
+  ['threaded_mode', 'comments', messages.threadedMode],
+];
+
+//  The component.
+export default function ComposerTextareaIcons ({
+  advancedOptions,
+  intl,
+}) {
+
+  //  The result. We just map every active option to its icon.
+  return (
+    <div className='composer--textarea--icons'>
+      {advancedOptions ? iconMap.map(
+        ([key, icon, message]) => advancedOptions.get(key) ? (
+          <span
+            className='textarea_icon'
+            key={key}
+            title={intl.formatMessage(message)}
+          >
+            <Icon
+              fullwidth
+              icon={icon}
+            />
+          </span>
+        ) : null
+      ) : null}
+    </div>
+  );
+}
+
+//  Props.
+ComposerTextareaIcons.propTypes = {
+  advancedOptions: ImmutablePropTypes.map,
+  intl: PropTypes.object.isRequired,
+};
diff --git a/app/javascript/flavours/glitch/features/composer/textarea/index.js b/app/javascript/flavours/glitch/features/composer/textarea/index.js
new file mode 100644
index 000000000..50e46fc78
--- /dev/null
+++ b/app/javascript/flavours/glitch/features/composer/textarea/index.js
@@ -0,0 +1,312 @@
+//  Package imports.
+import PropTypes from 'prop-types';
+import React from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import {
+  defineMessages,
+  FormattedMessage,
+} from 'react-intl';
+import Textarea from 'react-textarea-autosize';
+
+//  Components.
+import EmojiPicker from 'flavours/glitch/features/emoji_picker';
+import ComposerTextareaIcons from './icons';
+import ComposerTextareaSuggestions from './suggestions';
+
+//  Utils.
+import { isRtl } from 'flavours/glitch/util/rtl';
+import {
+  assignHandlers,
+  hiddenComponent,
+} from 'flavours/glitch/util/react_helpers';
+
+//  Messages.
+const messages = defineMessages({
+  placeholder: {
+    defaultMessage: 'What is on your mind?',
+    id: 'compose_form.placeholder',
+  },
+});
+
+//  Handlers.
+const handlers = {
+
+  //  When blurring the textarea, suggestions are hidden.
+  handleBlur () {
+    this.setState({ suggestionsHidden: true });
+  },
+
+  //  When the contents of the textarea change, we have to pull up new
+  //  autosuggest suggestions if applicable, and also change the value
+  //  of the textarea in our store.
+  handleChange ({
+    target: {
+      selectionStart,
+      value,
+    },
+  }) {
+    const {
+      onChange,
+      onSuggestionsFetchRequested,
+      onSuggestionsClearRequested,
+    } = this.props;
+    const { lastToken } = this.state;
+
+    //  This gets the token at the caret location, if it begins with an
+    //  `@` (mentions) or `:` (shortcodes).
+    const left = value.slice(0, selectionStart).search(/[^\s\u200B]+$/);
+    const right = value.slice(selectionStart).search(/[\s\u200B]/);
+    const token = function () {
+      switch (true) {
+      case left < 0 || !/[@:#]/.test(value[left]):
+        return null;
+      case right < 0:
+        return value.slice(left);
+      default:
+        return value.slice(left, right + selectionStart).trim().toLowerCase();
+      }
+    }();
+
+    //  We only request suggestions for tokens which are at least 3
+    //  characters long.
+    if (onSuggestionsFetchRequested && token && token.length >= 3) {
+      if (lastToken !== token) {
+        this.setState({
+          lastToken: token,
+          selectedSuggestion: 0,
+          tokenStart: left,
+        });
+        onSuggestionsFetchRequested(token);
+      }
+    } else {
+      this.setState({ lastToken: null });
+      if (onSuggestionsClearRequested) {
+        onSuggestionsClearRequested();
+      }
+    }
+
+    //  Updates the value of the textarea.
+    if (onChange) {
+      onChange(value);
+    }
+  },
+
+  //  Handles a click on an autosuggestion.
+  handleClickSuggestion (index) {
+    const { textarea } = this;
+    const {
+      onSuggestionSelected,
+      suggestions,
+    } = this.props;
+    const {
+      lastToken,
+      tokenStart,
+    } = this.state;
+    onSuggestionSelected(tokenStart, lastToken, suggestions.get(index));
+    textarea.focus();
+  },
+
+  //  Handles a keypress.  If the autosuggestions are visible, we need
+  //  to allow keypresses to navigate and sleect them.
+  handleKeyDown (e) {
+    const {
+      disabled,
+      onSubmit,
+      onSecondarySubmit,
+      onSuggestionSelected,
+      suggestions,
+    } = this.props;
+    const {
+      lastToken,
+      suggestionsHidden,
+      selectedSuggestion,
+      tokenStart,
+    } = this.state;
+
+    //  Keypresses do nothing if the composer is disabled.
+    if (disabled) {
+      e.preventDefault();
+      return;
+    }
+
+    //  We submit the status on control/meta + enter.
+    if (onSubmit && e.keyCode === 13 && (e.ctrlKey || e.metaKey)) {
+      onSubmit();
+    }
+
+    // Submit the status with secondary visibility on alt + enter.
+    if (onSecondarySubmit && e.keyCode === 13 && e.altKey) {
+      onSecondarySubmit();
+    }
+
+    //  Switches over the pressed key.
+    switch(e.key) {
+
+    //  On arrow down, we pick the next suggestion.
+    case 'ArrowDown':
+      if (suggestions && suggestions.size > 0 && !suggestionsHidden) {
+        e.preventDefault();
+        this.setState({ selectedSuggestion: Math.min(selectedSuggestion + 1, suggestions.size - 1) });
+      }
+      return;
+
+    //  On arrow up, we pick the previous suggestion.
+    case 'ArrowUp':
+      if (suggestions && suggestions.size > 0 && !suggestionsHidden) {
+        e.preventDefault();
+        this.setState({ selectedSuggestion: Math.max(selectedSuggestion - 1, 0) });
+      }
+      return;
+
+    //  On enter or tab, we select the suggestion.
+    case 'Enter':
+    case 'Tab':
+      if (onSuggestionSelected && lastToken !== null && suggestions && suggestions.size > 0 && !suggestionsHidden) {
+        e.preventDefault();
+        e.stopPropagation();
+        onSuggestionSelected(tokenStart, lastToken, suggestions.get(selectedSuggestion));
+      }
+      return;
+    }
+  },
+
+  //  When the escape key is released, we either close the suggestions
+  //  window or focus the UI.
+  handleKeyUp ({ key }) {
+    const { suggestionsHidden } = this.state;
+    if (key === 'Escape') {
+      if (!suggestionsHidden) {
+        this.setState({ suggestionsHidden: true });
+      } else {
+        document.querySelector('.ui').parentElement.focus();
+      }
+    }
+  },
+
+  //  Handles the pasting of images into the composer.
+  handlePaste (e) {
+    const { onPaste } = this.props;
+    let d;
+    if (onPaste && (d = e.clipboardData) && (d = d.files).length === 1) {
+      onPaste(d);
+      e.preventDefault();
+    }
+  },
+
+  //  Saves a reference to the textarea.
+  handleRefTextarea (textarea) {
+    this.textarea = textarea;
+  },
+};
+
+//  The component.
+export default class ComposerTextarea extends React.Component {
+
+  //  Constructor.
+  constructor (props) {
+    super(props);
+    assignHandlers(this, handlers);
+    this.state = {
+      suggestionsHidden: false,
+      selectedSuggestion: 0,
+      lastToken: null,
+      tokenStart: 0,
+    };
+
+    //  Instance variables.
+    this.textarea = null;
+  }
+
+  //  When we receive new suggestions, we unhide the suggestions window
+  //  if we didn't have any suggestions before.
+  componentWillReceiveProps (nextProps) {
+    const { suggestions } = this.props;
+    const { suggestionsHidden } = this.state;
+    if (nextProps.suggestions && nextProps.suggestions !== suggestions && nextProps.suggestions.size > 0 && suggestionsHidden) {
+      this.setState({ suggestionsHidden: false });
+    }
+  }
+
+  //  Rendering.
+  render () {
+    const {
+      handleBlur,
+      handleChange,
+      handleClickSuggestion,
+      handleKeyDown,
+      handleKeyUp,
+      handlePaste,
+      handleRefTextarea,
+    } = this.handlers;
+    const {
+      advancedOptions,
+      autoFocus,
+      disabled,
+      intl,
+      onPickEmoji,
+      suggestions,
+      value,
+    } = this.props;
+    const {
+      selectedSuggestion,
+      suggestionsHidden,
+    } = this.state;
+
+    //  The result.
+    return (
+      <div className='composer--textarea'>
+        <label>
+          <span {...hiddenComponent}><FormattedMessage {...messages.placeholder} /></span>
+          <ComposerTextareaIcons
+            advancedOptions={advancedOptions}
+            intl={intl}
+          />
+          <Textarea
+            aria-autocomplete='list'
+            autoFocus={autoFocus}
+            className='textarea'
+            disabled={disabled}
+            inputRef={handleRefTextarea}
+            onBlur={handleBlur}
+            onChange={handleChange}
+            onKeyDown={handleKeyDown}
+            onKeyUp={handleKeyUp}
+            onPaste={handlePaste}
+            placeholder={intl.formatMessage(messages.placeholder)}
+            value={value}
+            style={{ direction: isRtl(value) ? 'rtl' : 'ltr' }}
+          />
+        </label>
+        <EmojiPicker onPickEmoji={onPickEmoji} />
+        <ComposerTextareaSuggestions
+          hidden={suggestionsHidden}
+          onSuggestionClick={handleClickSuggestion}
+          suggestions={suggestions}
+          value={selectedSuggestion}
+        />
+      </div>
+    );
+  }
+
+}
+
+//  Props.
+ComposerTextarea.propTypes = {
+  advancedOptions: ImmutablePropTypes.map,
+  autoFocus: PropTypes.bool,
+  disabled: PropTypes.bool,
+  intl: PropTypes.object.isRequired,
+  onChange: PropTypes.func,
+  onPaste: PropTypes.func,
+  onPickEmoji: PropTypes.func,
+  onSubmit: PropTypes.func,
+  onSecondarySubmit: PropTypes.func,
+  onSuggestionsClearRequested: PropTypes.func,
+  onSuggestionsFetchRequested: PropTypes.func,
+  onSuggestionSelected: PropTypes.func,
+  suggestions: ImmutablePropTypes.list,
+  value: PropTypes.string,
+};
+
+//  Default props.
+ComposerTextarea.defaultProps = { autoFocus: true };
diff --git a/app/javascript/flavours/glitch/features/composer/textarea/suggestions/index.js b/app/javascript/flavours/glitch/features/composer/textarea/suggestions/index.js
new file mode 100644
index 000000000..dc72585f2
--- /dev/null
+++ b/app/javascript/flavours/glitch/features/composer/textarea/suggestions/index.js
@@ -0,0 +1,43 @@
+//  Package imports.
+import PropTypes from 'prop-types';
+import React from 'react';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+
+//  Components.
+import ComposerTextareaSuggestionsItem from './item';
+
+//  The component.
+export default function ComposerTextareaSuggestions ({
+  hidden,
+  onSuggestionClick,
+  suggestions,
+  value,
+}) {
+
+  //  The result.
+  return (
+    <div
+      className='composer--textarea--suggestions'
+      hidden={hidden || !suggestions || suggestions.isEmpty()}
+    >
+      {!hidden && suggestions ? suggestions.map(
+        (suggestion, index) => (
+          <ComposerTextareaSuggestionsItem
+            index={index}
+            key={typeof suggestion === 'object' ? suggestion.id : suggestion}
+            onClick={onSuggestionClick}
+            selected={index === value}
+            suggestion={suggestion}
+          />
+        )
+      ) : null}
+    </div>
+  );
+}
+
+ComposerTextareaSuggestions.propTypes = {
+  hidden: PropTypes.bool,
+  onSuggestionClick: PropTypes.func,
+  suggestions: ImmutablePropTypes.list,
+  value: PropTypes.number,
+};
diff --git a/app/javascript/flavours/glitch/features/composer/textarea/suggestions/item/index.js b/app/javascript/flavours/glitch/features/composer/textarea/suggestions/item/index.js
new file mode 100644
index 000000000..331692398
--- /dev/null
+++ b/app/javascript/flavours/glitch/features/composer/textarea/suggestions/item/index.js
@@ -0,0 +1,118 @@
+//  Package imports.
+import classNames from 'classnames';
+import PropTypes from 'prop-types';
+import React from 'react';
+
+//  Components.
+import AccountContainer from 'flavours/glitch/containers/account_container';
+
+//  Utils.
+import { unicodeMapping } from 'flavours/glitch/util/emoji';
+import { assignHandlers } from 'flavours/glitch/util/react_helpers';
+
+//  Gets our asset host from the environment, if available.
+const assetHost = ((process || {}).env || {}).CDN_HOST || '';
+
+//  Handlers.
+const handlers = {
+
+  //  Handles a click on a suggestion.
+  handleClick (e) {
+    const {
+      index,
+      onClick,
+    } = this.props;
+    if (onClick) {
+      e.preventDefault();
+      e.stopPropagation();  //  Prevents following account links
+      onClick(index);
+    }
+  },
+
+  //  This prevents the focus from changing, which would mess with
+  //  our suggestion code.
+  handleMouseDown (e) {
+    e.preventDefault();
+  },
+};
+
+//  The component.
+export default class ComposerTextareaSuggestionsItem extends React.Component {
+
+  //  Constructor.
+  constructor (props) {
+    super(props);
+    assignHandlers(this, handlers);
+  }
+
+  //  Rendering.
+  render () {
+    const {
+      handleMouseDown,
+      handleClick,
+    } = this.handlers;
+    const {
+      selected,
+      suggestion,
+    } = this.props;
+    const computedClass = classNames('composer--textarea--suggestions--item', { selected });
+
+    //  If the suggestion is an object, then we render an emoji.
+    //  Otherwise, we render a hashtag if it starts with #, or an account.
+    let inner;
+    if (typeof suggestion === 'object') {
+      let url;
+      if (suggestion.custom) {
+        url = suggestion.imageUrl;
+      } else {
+        const mapping = unicodeMapping[suggestion.native] || unicodeMapping[suggestion.native.replace(/\uFE0F$/, '')];
+        if (mapping) {
+          url = `${assetHost}/emoji/${mapping.filename}.svg`;
+        }
+      }
+      if (url) {
+        inner = (
+          <div className='emoji'>
+            <img
+              alt={suggestion.native || suggestion.colons}
+              className='emojione'
+              src={url}
+            />
+            {suggestion.colons}
+          </div>
+        );
+      }
+    } else if (suggestion[0] === '#') {
+      inner = suggestion;
+    } else {
+      inner = (
+        <AccountContainer
+          id={suggestion}
+          small
+        />
+      );
+    }
+
+    //  The result.
+    return (
+      <div
+        className={computedClass}
+        onMouseDown={handleMouseDown}
+        onClickCapture={handleClick}  //  Jumps in front of contents
+        role='button'
+        tabIndex='0'
+      >
+        { inner }
+      </div>
+    );
+  }
+
+}
+
+//  Props.
+ComposerTextareaSuggestionsItem.propTypes = {
+  index: PropTypes.number,
+  onClick: PropTypes.func,
+  selected: PropTypes.bool,
+  suggestion: PropTypes.oneOfType([PropTypes.object, PropTypes.string]),
+};