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-rw-r--r--app/javascript/mastodon/actions/compose.js74
-rw-r--r--app/javascript/mastodon/components/autosuggest_textarea.js29
-rw-r--r--app/javascript/mastodon/features/compose/components/autosuggest_shortcode.js38
-rw-r--r--app/javascript/mastodon/features/compose/components/compose_form.js5
-rw-r--r--app/javascript/mastodon/reducers/compose.js4
-rw-r--r--app/javascript/styles/components.scss2
6 files changed, 135 insertions, 17 deletions
diff --git a/app/javascript/mastodon/actions/compose.js b/app/javascript/mastodon/actions/compose.js
index 5f265a750..c86184046 100644
--- a/app/javascript/mastodon/actions/compose.js
+++ b/app/javascript/mastodon/actions/compose.js
@@ -1,4 +1,5 @@
 import api from '../api';
+import emojione from 'emojione';
 
 import {
   updateTimeline,
@@ -22,6 +23,7 @@ export const COMPOSE_UPLOAD_UNDO     = 'COMPOSE_UPLOAD_UNDO';
 
 export const COMPOSE_SUGGESTIONS_CLEAR = 'COMPOSE_SUGGESTIONS_CLEAR';
 export const COMPOSE_SUGGESTIONS_READY = 'COMPOSE_SUGGESTIONS_READY';
+export const COMPOSE_SUGGESTIONS_READY_TXT = 'COMPOSE_SUGGESTIONS_READY_TXT';
 export const COMPOSE_SUGGESTION_SELECT = 'COMPOSE_SUGGESTION_SELECT';
 
 export const COMPOSE_MOUNT   = 'COMPOSE_MOUNT';
@@ -211,18 +213,56 @@ export function clearComposeSuggestions() {
   };
 };
 
+let allShortcodes = null; // cached list of all shortcodes for suggestions
+
 export function fetchComposeSuggestions(token) {
-  return (dispatch, getState) => {
-    api(getState).get('/api/v1/accounts/search', {
-      params: {
-        q: token,
-        resolve: false,
-        limit: 4,
-      },
-    }).then(response => {
-      dispatch(readyComposeSuggestions(token, response.data));
-    });
-  };
+  let leading = token[0];
+
+  if (leading === '@') {
+    // handle search
+    return (dispatch, getState) => {
+      api(getState).get('/api/v1/accounts/search', {
+        params: {
+          q: token.slice(1), // remove the '@'
+          resolve: false,
+          limit: 4,
+        },
+      }).then(response => {
+        dispatch(readyComposeSuggestions(token, response.data));
+      });
+    };
+  } else if (leading === ':') {
+    // shortcode
+    if (!allShortcodes) {
+      allShortcodes = Object.keys(emojione.emojioneList);
+      // TODO when we have custom emojons merged, add them to this shortcode list
+    }
+    return (dispatch) => {
+      const innertxt = token.slice(1);
+      if (innertxt.length > 1) { // prevent searching single letter, causes lag
+        dispatch(readyComposeSuggestionsTxt(token, allShortcodes.filter((sc) => {
+          return sc.indexOf(innertxt) !== -1;
+        }).sort((a, b) => {
+          if (a.indexOf(token) === 0 && b.indexOf(token) === 0) return a.localeCompare(b);
+          if (a.indexOf(token) === 0) return -1;
+          if (b.indexOf(token) === 0) return 1;
+          return a.localeCompare(b);
+        })));
+      }
+    };
+  } else {
+    // hashtag
+    return (dispatch, getState) => {
+      api(getState).get('/api/v1/search', {
+        params: {
+          q: token,
+          resolve: true,
+        },
+      }).then(response => {
+        dispatch(readyComposeSuggestionsTxt(token, response.data.hashtags.map((ht) => `#${ht}`)));
+      });
+    };
+  }
 };
 
 export function readyComposeSuggestions(token, accounts) {
@@ -233,9 +273,19 @@ export function readyComposeSuggestions(token, accounts) {
   };
 };
 
+export function readyComposeSuggestionsTxt(token, items) {
+  return {
+    type: COMPOSE_SUGGESTIONS_READY_TXT,
+    token,
+    items,
+  };
+};
+
 export function selectComposeSuggestion(position, token, accountId) {
   return (dispatch, getState) => {
-    const completion = getState().getIn(['accounts', accountId, 'acct']);
+    const completion = (typeof accountId === 'string') ?
+      accountId.slice(1) : // text suggestion: discard the leading : or # - the replacing code replaces only what follows
+      getState().getIn(['accounts', accountId, 'acct']);
 
     dispatch({
       type: COMPOSE_SUGGESTION_SELECT,
diff --git a/app/javascript/mastodon/components/autosuggest_textarea.js b/app/javascript/mastodon/components/autosuggest_textarea.js
index 35b37600f..e94900c82 100644
--- a/app/javascript/mastodon/components/autosuggest_textarea.js
+++ b/app/javascript/mastodon/components/autosuggest_textarea.js
@@ -1,5 +1,6 @@
 import React from 'react';
 import AutosuggestAccountContainer from '../features/compose/containers/autosuggest_account_container';
+import AutosuggestShortcode from '../features/compose/components/autosuggest_shortcode';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import PropTypes from 'prop-types';
 import { isRtl } from '../rtl';
@@ -18,11 +19,12 @@ const textAtCursorMatchesToken = (str, caretPosition) => {
     word = str.slice(left, right + caretPosition);
   }
 
-  if (!word || word.trim().length < 2 || word[0] !== '@') {
+  if (!word || word.trim().length < 2 || ['@', ':', '#'].indexOf(word[0]) === -1) {
     return [null, null];
   }
 
-  word = word.trim().toLowerCase().slice(1);
+  word = word.trim().toLowerCase();
+  // was: .slice(1); - we leave the leading char there, handler can decide what to do based on it
 
   if (word.length > 0) {
     return [left + 1, word];
@@ -41,6 +43,7 @@ export default class AutosuggestTextarea extends ImmutablePureComponent {
     onSuggestionSelected: PropTypes.func.isRequired,
     onSuggestionsClearRequested: PropTypes.func.isRequired,
     onSuggestionsFetchRequested: PropTypes.func.isRequired,
+    onLocalSuggestionsFetchRequested: PropTypes.func.isRequired,
     onChange: PropTypes.func.isRequired,
     onKeyUp: PropTypes.func,
     onKeyDown: PropTypes.func,
@@ -64,7 +67,13 @@ export default class AutosuggestTextarea extends ImmutablePureComponent {
 
     if (token !== null && this.state.lastToken !== token) {
       this.setState({ lastToken: token, selectedSuggestion: 0, tokenStart });
-      this.props.onSuggestionsFetchRequested(token);
+      if (token[0] === ':') {
+        // faster debounce for shortcodes.
+        // hashtags have long debounce because they're fetched from server.
+        this.props.onLocalSuggestionsFetchRequested(token);
+      } else {
+        this.props.onSuggestionsFetchRequested(token);
+      }
     } else if (token === null) {
       this.setState({ lastToken: null });
       this.props.onSuggestionsClearRequested();
@@ -128,7 +137,9 @@ export default class AutosuggestTextarea extends ImmutablePureComponent {
   }
 
   onSuggestionClick = (e) => {
-    const suggestion = Number(e.currentTarget.getAttribute('data-index'));
+    // leave suggestion string unchanged if it's a hash / shortcode suggestion. convert account number to int.
+    const suggestionStr = e.currentTarget.getAttribute('data-index');
+    const suggestion = [':', '#'].indexOf(suggestionStr[0]) !== -1 ? suggestionStr : Number(suggestionStr);
     e.preventDefault();
     this.props.onSuggestionSelected(this.state.tokenStart, this.state.lastToken, suggestion);
     this.textarea.focus();
@@ -160,6 +171,14 @@ export default class AutosuggestTextarea extends ImmutablePureComponent {
       style.direction = 'rtl';
     }
 
+    let makeItem = (suggestion) => {
+      if (suggestion[0] === ':') return <AutosuggestShortcode shortcode={suggestion} />;
+      if (suggestion[0] === '#') return suggestion; // hashtag
+
+      // else - accounts are always returned as IDs with no prefix
+      return <AutosuggestAccountContainer id={suggestion} />;
+    };
+
     return (
       <div className='autosuggest-textarea'>
         <label>
@@ -190,7 +209,7 @@ export default class AutosuggestTextarea extends ImmutablePureComponent {
               className={`autosuggest-textarea__suggestions__item ${i === selectedSuggestion ? 'selected' : ''}`}
               onMouseDown={this.onSuggestionClick}
             >
-              <AutosuggestAccountContainer id={suggestion} />
+              {makeItem(suggestion)}
             </div>
           ))}
         </div>
diff --git a/app/javascript/mastodon/features/compose/components/autosuggest_shortcode.js b/app/javascript/mastodon/features/compose/components/autosuggest_shortcode.js
new file mode 100644
index 000000000..4a0ef96b3
--- /dev/null
+++ b/app/javascript/mastodon/features/compose/components/autosuggest_shortcode.js
@@ -0,0 +1,38 @@
+import React from 'react';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import PropTypes from 'prop-types';
+import emojione from 'emojione';
+
+// This is bad, but I don't know how to make it work without importing the entirety of emojione.
+// taken from some old version of mastodon before they gutted emojione to "emojione_light"
+const shortnameToImage = str => str.replace(emojione.regShortNames, shortname => {
+  if (typeof shortname === 'undefined' || shortname === '' || !(shortname in emojione.emojioneList)) {
+    return shortname;
+  }
+
+  const unicode = emojione.emojioneList[shortname].unicode[emojione.emojioneList[shortname].unicode.length - 1];
+  const alt     = emojione.convert(unicode.toUpperCase());
+
+  return `<img draggable="false" class="emojione" alt="${alt}" src="/emoji/${unicode}.svg" />`;
+});
+
+export default class AutosuggestShortcode extends ImmutablePureComponent {
+
+  static propTypes = {
+    shortcode: PropTypes.string.isRequired,
+  };
+
+  render () {
+    const { shortcode } = this.props;
+
+    let emoji = shortnameToImage(shortcode);
+
+    return (
+      <div className='autosuggest-account'>
+        <div className='autosuggest-account-icon' dangerouslySetInnerHTML={{ __html: emoji }} />
+        {shortcode}
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/compose/components/compose_form.js b/app/javascript/mastodon/features/compose/components/compose_form.js
index 000e414fe..f6b5cf0be 100644
--- a/app/javascript/mastodon/features/compose/components/compose_form.js
+++ b/app/javascript/mastodon/features/compose/components/compose_form.js
@@ -90,6 +90,10 @@ export default class ComposeForm extends ImmutablePureComponent {
     this.props.onFetchSuggestions(token);
   }, 500, { trailing: true })
 
+  onLocalSuggestionsFetchRequested = debounce((token) => {
+    this.props.onFetchSuggestions(token);
+  }, 100, { trailing: true })
+
   onSuggestionSelected = (tokenStart, token, value) => {
     this._restoreCaret = null;
     this.props.onSuggestionSelected(tokenStart, token, value);
@@ -186,6 +190,7 @@ export default class ComposeForm extends ImmutablePureComponent {
             suggestions={this.props.suggestions}
             onKeyDown={this.handleKeyDown}
             onSuggestionsFetchRequested={this.onSuggestionsFetchRequested}
+            onLocalSuggestionsFetchRequested={this.onLocalSuggestionsFetchRequested}
             onSuggestionsClearRequested={this.onSuggestionsClearRequested}
             onSuggestionSelected={this.onSuggestionSelected}
             onPaste={onPaste}
diff --git a/app/javascript/mastodon/reducers/compose.js b/app/javascript/mastodon/reducers/compose.js
index e7a3567b4..d2b29721f 100644
--- a/app/javascript/mastodon/reducers/compose.js
+++ b/app/javascript/mastodon/reducers/compose.js
@@ -15,6 +15,7 @@ import {
   COMPOSE_UPLOAD_PROGRESS,
   COMPOSE_SUGGESTIONS_CLEAR,
   COMPOSE_SUGGESTIONS_READY,
+  COMPOSE_SUGGESTIONS_READY_TXT,
   COMPOSE_SUGGESTION_SELECT,
   COMPOSE_ADVANCED_OPTIONS_CHANGE,
   COMPOSE_SENSITIVITY_CHANGE,
@@ -263,6 +264,9 @@ export default function compose(state = initialState, action) {
     return state.update('suggestions', ImmutableList(), list => list.clear()).set('suggestion_token', null);
   case COMPOSE_SUGGESTIONS_READY:
     return state.set('suggestions', ImmutableList(action.accounts.map(item => item.id))).set('suggestion_token', action.token);
+  case COMPOSE_SUGGESTIONS_READY_TXT:
+    // suggestion received that is not an account - hashtag or emojo
+    return state.set('suggestions', ImmutableList(action.items.map(item => item))).set('suggestion_token', action.token);
   case COMPOSE_SUGGESTION_SELECT:
     return insertSuggestion(state, action.position, action.token, action.completion);
   case TIMELINE_DELETE:
diff --git a/app/javascript/styles/components.scss b/app/javascript/styles/components.scss
index 2437d5a91..03f4f0800 100644
--- a/app/javascript/styles/components.scss
+++ b/app/javascript/styles/components.scss
@@ -2096,6 +2096,8 @@
 .autosuggest-textarea__suggestions {
   display: none;
   position: absolute;
+  max-height: 300px;
+  overflow-y: auto;
   top: 100%;
   width: 100%;
   z-index: 99;