Fixed pasting images not working (#5971)

webapp/components/create_comment.jsx

@@ -51,6 +51,7 @@ export default class CreateComment extends React.Component {
         this.handleUploadError = this.handleUploadError.bind(this);
         this.removePreview = this.removePreview.bind(this);
         this.getFileCount = this.getFileCount.bind(this);
+        this.getFileUploadTarget = this.getFileUploadTarget.bind(this);
         this.onPreferenceChange = this.onPreferenceChange.bind(this);
         this.focusTextbox = this.focusTextbox.bind(this);
         this.showPostDeletedModal = this.showPostDeletedModal.bind(this);
@@ -497,6 +498,10 @@ export default class CreateComment extends React.Component {
         return this.state.fileInfos.length + this.state.uploadsInProgress.length;
     }
 
+    getFileUploadTarget() {
+        return this.refs.textbox;
+    }
+
     focusTextbox(keepFocus = false) {
         if (keepFocus || !Utils.isMobile()) {
             this.refs.textbox.focus();
@@ -612,6 +617,7 @@ export default class CreateComment extends React.Component {
                             <FileUpload
                                 ref='fileUpload'
                                 getFileCount={this.getFileCount}
+                                getTarget={this.getFileUploadTarget}
                                 onFileUploadChange={this.handleFileUploadChange}
                                 onUploadStart={this.handleUploadStart}
                                 onFileUpload={this.handleFileUploadComplete}