Making upload button into a smaller icon button

app/assets/javascripts/components/features/compose/containers/compose_form_container.jsx

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+import { connect } from 'react-redux';
+import ComposeForm from '../components/compose_form';
+import {
+  changeCompose,
+  submitCompose,
+  cancelReplyCompose,
+  clearComposeSuggestions,
+  fetchComposeSuggestions,
+  selectComposeSuggestion
+} from '../../../actions/compose';
+import { makeGetStatus } from '../../../selectors';
+
+const makeMapStateToProps = () => {
+  const getStatus = makeGetStatus();
+
+  const mapStateToProps = function (state, props) {
+    return {
+      text: state.getIn(['compose', 'text']),
+      suggestion_token: state.getIn(['compose', 'suggestion_token']),
+      suggestions: state.getIn(['compose', 'suggestions']).toJS(),
+      is_submitting: state.getIn(['compose', 'is_submitting']),
+      is_uploading: state.getIn(['compose', 'is_uploading']),
+      in_reply_to: getStatus(state, state.getIn(['compose', 'in_reply_to']))
+    };
+  };
+
+  return mapStateToProps;
+};
+
+const mapDispatchToProps = function (dispatch) {
+  return {
+    onChange (text) {
+      dispatch(changeCompose(text));
+    },
+
+    onSubmit () {
+      dispatch(submitCompose());
+    },
+
+    onCancelReply () {
+      dispatch(cancelReplyCompose());
+    },
+
+    onClearSuggestions () {
+      dispatch(clearComposeSuggestions());
+    },
+
+    onFetchSuggestions (token) {
+      dispatch(fetchComposeSuggestions(token));
+    },
+
+    onSuggestionSelected (position, accountId) {
+      dispatch(selectComposeSuggestion(position, accountId));
+    }
+  }
+};
+
+export default connect(makeMapStateToProps, mapDispatchToProps)(ComposeForm);

app/assets/javascripts/components/features/compose/containers/navigation_container.jsx

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+import { connect }   from 'react-redux';
+import NavigationBar from '../components/navigation_bar';
+
+const mapStateToProps = (state, props) => ({
+  account: state.getIn(['accounts', state.getIn(['meta', 'me'])])
+});
+
+export default connect(mapStateToProps)(NavigationBar);

app/assets/javascripts/components/features/compose/containers/upload_button_container.jsx

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+import { connect } from 'react-redux';
+import UploadButton from '../components/upload_button';
+import { uploadCompose } from '../../../actions/compose';
+
+const mapStateToProps = state => ({
+  disabled: state.getIn(['compose', 'is_uploading']) || (state.getIn(['compose', 'media_attachments']).size > 3 || state.getIn(['compose', 'media_attachments']).some(m => m.get('type') === 'video')),
+});
+
+const mapDispatchToProps = dispatch => ({
+
+  onSelectFile (files) {
+    dispatch(uploadCompose(files));
+  }
+
+});
+
+export default connect(mapStateToProps, mapDispatchToProps)(UploadButton);

app/assets/javascripts/components/features/compose/containers/upload_form_container.jsx

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+import { connect } from 'react-redux';
+import UploadForm from '../components/upload_form';
+import { undoUploadCompose } from '../../../actions/compose';
+
+const mapStateToProps = (state, props) => ({
+  media: state.getIn(['compose', 'media_attachments']),
+});
+
+const mapDispatchToProps = dispatch => ({
+
+  onRemoveFile (media_id) {
+    dispatch(undoUploadCompose(media_id));
+  }
+
+});
+
+export default connect(mapStateToProps, mapDispatchToProps)(UploadForm);