mastofe

commit: 8a6096a3de66f0d6bd0b7133b5873d35ae10edea
parent: d2f6d9b9fbe59575846141ca094324da9cd7de4d
Author: Jessica Stokes <hello@jessicastokes.net>
Date:   Tue, 11 Apr 2017 05:30:58 +1000

Allow typing a toot while an image uploads (#1429)

This patch stops disabling the toot text field when an image is uploading. Instead, you can type to your heart's content and when the image uploads it'll append the image URL, and restore the position of your cursor to wherever it was in the toot text just prior. Effectively, the image URL is appended to the toot, and typing is not interrupted at all! ✨
Diffstat:
M
app/assets/javascripts/components/features/compose/components/compose_form.jsx
22
+++++++++++++++++-----

1 file changed, 17 insertions(+), 5 deletions(-)
diff --git a/app/assets/javascripts/components/features/compose/components/compose_form.jsx b/app/assets/javascripts/components/features/compose/components/compose_form.jsx
@@ -83,11 +83,23 @@ const ComposeForm = React.createClass({
     this.props.onChangeSpoilerText(e.target.value);
   },
 
+  componentWillReceiveProps (nextProps) {
+    // If this is the update where we've finished uploading,
+    // save the last caret position so we can restore it below!
+    if (!nextProps.is_uploading && this.props.is_uploading) {
+      this._restoreCaret = this.autosuggestTextarea.textarea.selectionStart;
+    }
+  },
+
   componentDidUpdate (prevProps) {
-    if (this.props.focusDate !== prevProps.focusDate) {
-      // If replying to zero or one users, places the cursor at the end of the textbox.
-      // If replying to more than one user, selects any usernames past the first;
-      // this provides a convenient shortcut to drop everyone else from the conversation.
+    // This statement does several things: 
+    // - If we're beginning a reply, and,
+    //     - Replying to zero or one users, places the cursor at the end of the textbox.
+    //     - Replying to more than one user, selects any usernames past the first;
+    //       this provides a convenient shortcut to drop everyone else from the conversation.
+    // - If we've just finished uploading an image, and have a saved caret position,
+    //   restores the cursor to that position after the text changes!
+    if (this.props.focusDate !== prevProps.focusDate || (prevProps.is_uploading && !this.props.is_uploading && typeof this._restoreCaret === 'number')) {
       let selectionEnd, selectionStart;
 
       if (this.props.preselectDate !== prevProps.preselectDate) {
@@ -118,7 +130,7 @@ const ComposeForm = React.createClass({
 
   render () {
     const { intl, needsPrivacyWarning, mentionedDomains, onPaste } = this.props;
-    const disabled = this.props.is_submitting || this.props.is_uploading;
+    const disabled = this.props.is_submitting;
 
     let publishText    = '';
     let privacyWarning = '';