From 131525536bfa45211df78db29f3ba9162762eaf7 Mon Sep 17 00:00:00 2001
From: Nolan Darilek <nolan@thewordnerd.info>
Date: Wed, 19 May 2021 08:42:33 -0500
Subject: [PATCH] Get rid of `has_widget_info` and push events directly where
 it makes sense.

---
 egui/src/context.rs           |  3 +--
 egui/src/response.rs          | 12 ------------
 egui/src/widgets/text_edit.rs | 21 +++++++++++----------
 3 files changed, 12 insertions(+), 24 deletions(-)

diff --git a/egui/src/context.rs b/egui/src/context.rs
index f011415e..8b20492b 100644
--- a/egui/src/context.rs
+++ b/egui/src/context.rs
@@ -193,8 +193,7 @@ impl CtxRef {
             drag_released: false,
             is_pointer_button_down_on: false,
             interact_pointer_pos: None,
-            changed: false,         // must be set by the widget itself
-            has_widget_info: false, // must be set by the widget itself
+            changed: false, // must be set by the widget itself
         };
 
         if !enabled || !sense.focusable || !layer_id.allow_interaction() {
diff --git a/egui/src/response.rs b/egui/src/response.rs
index 7f1edd99..0c6ebf6e 100644
--- a/egui/src/response.rs
+++ b/egui/src/response.rs
@@ -65,8 +65,6 @@ pub struct Response {
     /// e.g. the slider was dragged, text was entered in a `TextEdit` etc.
     /// Always `false` for something like a `Button`.
     pub(crate) changed: bool,
-    /// Has a `WidgetInfo` but isn't covered by some other case (E.g. `changed`, `clicked`.)
-    pub(crate) has_widget_info: bool,
 }
 
 impl std::fmt::Debug for Response {
@@ -86,7 +84,6 @@ impl std::fmt::Debug for Response {
             is_pointer_button_down_on,
             interact_pointer_pos,
             changed,
-            has_widget_info,
         } = self;
         f.debug_struct("Response")
             .field("layer_id", layer_id)
@@ -102,7 +99,6 @@ impl std::fmt::Debug for Response {
             .field("is_pointer_button_down_on", is_pointer_button_down_on)
             .field("interact_pointer_pos", interact_pointer_pos)
             .field("changed", changed)
-            .field("has_widget_info", has_widget_info)
             .finish()
     }
 }
@@ -441,13 +437,6 @@ impl Response {
             Some(OutputEvent::FocusGained(make_info()))
         } else if self.changed {
             Some(OutputEvent::ValueChanged(make_info()))
-        } else if self.has_widget_info {
-            let info = make_info();
-            if info.primary_cursor.is_some() && info.secondary_cursor.is_some() {
-                Some(OutputEvent::TextSelectionChanged(info))
-            } else {
-                None
-            }
         } else {
             None
         };
@@ -490,7 +479,6 @@ impl Response {
                 || other.is_pointer_button_down_on,
             interact_pointer_pos: self.interact_pointer_pos.or(other.interact_pointer_pos),
             changed: self.changed || other.changed,
-            has_widget_info: self.has_widget_info || other.has_widget_info,
         }
     }
 }
diff --git a/egui/src/widgets/text_edit.rs b/egui/src/widgets/text_edit.rs
index cc74ea79..d1824f27 100644
--- a/egui/src/widgets/text_edit.rs
+++ b/egui/src/widgets/text_edit.rs
@@ -1,4 +1,4 @@
-use crate::{util::undoer::Undoer, *};
+use crate::{output::OutputEvent, util::undoer::Undoer, *};
 use epaint::{text::cursor::*, *};
 
 #[derive(Clone, Debug, Default)]
@@ -505,7 +505,6 @@ impl<'t> TextEdit<'t> {
                             && text_to_insert != "\r"
                         {
                             let mut ccursor = delete_selected(text, &mut prev_text, &cursorp);
-
                             insert_text(&mut ccursor, text, &mut prev_text, text_to_insert);
                             Some(CCursorPair::one(ccursor))
                         } else {
@@ -664,14 +663,16 @@ impl<'t> TextEdit<'t> {
         if response.changed {
             response.widget_info(|| WidgetInfo::text_edit(&*text, &*prev_text));
         } else if let Some(text_cursor) = text_cursor {
-            response.has_widget_info = true;
-            response.widget_info(|| {
-                WidgetInfo::text_selection_changed(
-                    text_cursor.primary.ccursor.index,
-                    text_cursor.secondary.ccursor.index,
-                    &*text,
-                )
-            });
+            let info = WidgetInfo::text_selection_changed(
+                text_cursor.primary.ccursor.index,
+                text_cursor.secondary.ccursor.index,
+                &*text,
+            );
+            response
+                .ctx
+                .output()
+                .events
+                .push(OutputEvent::TextSelectionChanged(info));
         }
         response
     }