From 4b94b2ca1b998479f0ef42696b83ca0ad7e97ae8 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 15:50:16 +0900
Subject: [PATCH 01/14] Update epi_integration.rs

---
 crates/eframe/src/native/epi_integration.rs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/crates/eframe/src/native/epi_integration.rs b/crates/eframe/src/native/epi_integration.rs
index f27d011202e..30dea793f21 100644
--- a/crates/eframe/src/native/epi_integration.rs
+++ b/crates/eframe/src/native/epi_integration.rs
@@ -278,13 +278,23 @@ impl EpiIntegration {
 
         let full_output = self.egui_ctx.run(raw_input, |egui_ctx| {
             if let Some(viewport_ui_cb) = viewport_ui_cb {
-                // Child viewport
+                // Child Deferred Viewport
                 crate::profile_scope!("viewport_callback");
                 viewport_ui_cb(egui_ctx);
             } else {
+                // ROOT Viewport ( with Immediate Viewport )
                 crate::profile_scope!("App::update");
                 app.update(egui_ctx, &mut self.frame);
             }
+
+            let continuous_mode = egui_ctx.options(|options| options.continuous_mode);
+            if continuous_mode {
+                let viewport_id = egui_ctx.viewport_id();
+                // TODO : Do not recall until the next repaint.
+                // 1000 millis / 60 fps = 16.67 millis
+                self.egui_ctx
+                    .request_repaint_after_for(std::time::Duration::from_millis(8), viewport_id);
+            }
         });
 
         let is_root_viewport = viewport_ui_cb.is_none();

From 67bc17c7e637fba3261d8dc7dd89014f653b7775 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 15:51:38 +0900
Subject: [PATCH 02/14] Update memory.rs

---
 crates/egui/src/memory.rs | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/crates/egui/src/memory.rs b/crates/egui/src/memory.rs
index 068347b5697..bd8c2bfc3c3 100644
--- a/crates/egui/src/memory.rs
+++ b/crates/egui/src/memory.rs
@@ -191,6 +191,14 @@ pub struct Options {
     /// Controls the tessellator.
     pub tessellation_options: epaint::TessellationOptions,
 
+    /// If `true`, This will call `egui::Context::request_repaint()` at the end of each frame
+    /// If `false` (default), egui is only updated if are input events (like mouse movements) or there are some animations in the GUI.
+    ///
+    /// ```
+    ///     ui.ctx().options_mut(|options| { options.continuous_mode = true});
+    /// ```
+    pub continuous_mode: bool,
+
     /// If any widget moves or changes id, repaint everything.
     ///
     /// It is recommended you keep this OFF, because
@@ -230,6 +238,7 @@ impl Default for Options {
             zoom_factor: 1.0,
             zoom_with_keyboard: true,
             tessellation_options: Default::default(),
+            continuous_mode: false,
             repaint_on_widget_change: false,
             screen_reader: false,
             preload_font_glyphs: true,
@@ -246,6 +255,7 @@ impl Options {
             zoom_factor: _, // TODO
             zoom_with_keyboard,
             tessellation_options,
+            continuous_mode,
             repaint_on_widget_change,
             screen_reader: _, // needs to come from the integration
             preload_font_glyphs: _,
@@ -257,6 +267,8 @@ impl Options {
         CollapsingHeader::new("⚙ Options")
             .default_open(false)
             .show(ui, |ui| {
+                ui.checkbox(continuous_mode, "Repaint at the end of each frame");
+
                 ui.checkbox(
                     repaint_on_widget_change,
                     "Repaint if any widget moves or changes id",
@@ -521,7 +533,9 @@ impl Focus {
             }
         }
 
-        let current_focused = self.focused_widget?;
+        let Some(current_focused) = self.focused_widget else {
+            return None;
+        };
 
         // In what direction we are looking for the next widget.
         let search_direction = match self.focus_direction {
@@ -544,7 +558,9 @@ impl Focus {
             }
         });
 
-        let current_rect = self.focus_widgets_cache.get(&current_focused.id)?;
+        let Some(current_rect) = self.focus_widgets_cache.get(&current_focused.id) else {
+            return None;
+        };
 
         let mut best_score = std::f32::INFINITY;
         let mut best_id = None;
@@ -635,7 +651,7 @@ impl Memory {
     }
 
     pub(crate) fn had_focus_last_frame(&self, id: Id) -> bool {
-        self.focus().and_then(|f| f.id_previous_frame) == Some(id)
+        self.focus().id_previous_frame == Some(id)
     }
 
     /// True if the given widget had keyboard focus last frame, but not this one.
@@ -661,7 +677,7 @@ impl Memory {
 
     /// Which widget has keyboard focus?
     pub fn focused(&self) -> Option<Id> {
-        self.focus().and_then(|f| f.focused())
+        self.focus().focused()
     }
 
     /// Set an event filter for a widget.
@@ -793,8 +809,10 @@ impl Memory {
         self.interactions.entry(self.viewport_id).or_default()
     }
 
-    pub(crate) fn focus(&self) -> Option<&Focus> {
-        self.focus.get(&self.viewport_id)
+    pub(crate) fn focus(&self) -> &Focus {
+        self.focus
+            .get(&self.viewport_id)
+            .expect("Failed to get focus")
     }
 
     pub(crate) fn focus_mut(&mut self) -> &mut Focus {

From 34e436488ae6a221280042fa626c88520faecb58 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 15:52:51 +0900
Subject: [PATCH 03/14] Update memory.rs

---
 crates/egui/src/memory.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/egui/src/memory.rs b/crates/egui/src/memory.rs
index bd8c2bfc3c3..09e13e671e9 100644
--- a/crates/egui/src/memory.rs
+++ b/crates/egui/src/memory.rs
@@ -195,7 +195,7 @@ pub struct Options {
     /// If `false` (default), egui is only updated if are input events (like mouse movements) or there are some animations in the GUI.
     ///
     /// ```
-    ///     ui.ctx().options_mut(|options| { options.continuous_mode = true});
+    ///     ui.ctx().options_mut(|options| options.continuous_mode = true);
     /// ```
     pub continuous_mode: bool,
 

From 2c48d6dab733775d06ff6080c108add2aeec5e57 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 15:55:00 +0900
Subject: [PATCH 04/14] Update backend_panel.rs

---
 crates/egui_demo_app/src/backend_panel.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crates/egui_demo_app/src/backend_panel.rs b/crates/egui_demo_app/src/backend_panel.rs
index 2e2f0f0a71c..119743edb78 100644
--- a/crates/egui_demo_app/src/backend_panel.rs
+++ b/crates/egui_demo_app/src/backend_panel.rs
@@ -65,10 +65,11 @@ impl BackendPanel {
         match self.run_mode {
             RunMode::Continuous => {
                 // Tell the backend to repaint as soon as possible
-                ctx.request_repaint();
+                ctx.options_mut(|options| options.continuous_mode = true);
             }
             RunMode::Reactive => {
                 // let the computer rest for a bit
+                ctx.options_mut(|options| options.continuous_mode = false);
             }
         }
     }

From bc9d3742d9bdf00e18fbb239b69e130394c62383 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 16:07:04 +0900
Subject: [PATCH 05/14] Update memory.rs

---
 crates/egui/src/memory.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/egui/src/memory.rs b/crates/egui/src/memory.rs
index 09e13e671e9..50454462b0b 100644
--- a/crates/egui/src/memory.rs
+++ b/crates/egui/src/memory.rs
@@ -194,7 +194,7 @@ pub struct Options {
     /// If `true`, This will call `egui::Context::request_repaint()` at the end of each frame
     /// If `false` (default), egui is only updated if are input events (like mouse movements) or there are some animations in the GUI.
     ///
-    /// ```
+    /// ```norun````
     ///     ui.ctx().options_mut(|options| options.continuous_mode = true);
     /// ```
     pub continuous_mode: bool,

From d67f20fd2d499c6fae6dde920fcd0936ef270192 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 16:09:30 +0900
Subject: [PATCH 06/14] Update memory.rs

---
 crates/egui/src/memory.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/egui/src/memory.rs b/crates/egui/src/memory.rs
index 50454462b0b..343cdabbf09 100644
--- a/crates/egui/src/memory.rs
+++ b/crates/egui/src/memory.rs
@@ -194,7 +194,7 @@ pub struct Options {
     /// If `true`, This will call `egui::Context::request_repaint()` at the end of each frame
     /// If `false` (default), egui is only updated if are input events (like mouse movements) or there are some animations in the GUI.
     ///
-    /// ```norun````
+    /// ```norun```
     ///     ui.ctx().options_mut(|options| options.continuous_mode = true);
     /// ```
     pub continuous_mode: bool,

From 2b455158322648cf948a244eda07f0f19862600c Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 16:14:30 +0900
Subject: [PATCH 07/14] Update memory.rs

---
 crates/egui/src/memory.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/egui/src/memory.rs b/crates/egui/src/memory.rs
index 343cdabbf09..337cba1d4df 100644
--- a/crates/egui/src/memory.rs
+++ b/crates/egui/src/memory.rs
@@ -194,7 +194,7 @@ pub struct Options {
     /// If `true`, This will call `egui::Context::request_repaint()` at the end of each frame
     /// If `false` (default), egui is only updated if are input events (like mouse movements) or there are some animations in the GUI.
     ///
-    /// ```norun```
+    /// ```no_run
     ///     ui.ctx().options_mut(|options| options.continuous_mode = true);
     /// ```
     pub continuous_mode: bool,

From 1d4d54ba291a8e8c49bf2667f032543cae566e73 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 16:21:20 +0900
Subject: [PATCH 08/14] Update memory.rs

---
 crates/egui/src/memory.rs | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/crates/egui/src/memory.rs b/crates/egui/src/memory.rs
index 337cba1d4df..c43a1039566 100644
--- a/crates/egui/src/memory.rs
+++ b/crates/egui/src/memory.rs
@@ -193,10 +193,6 @@ pub struct Options {
 
     /// If `true`, This will call `egui::Context::request_repaint()` at the end of each frame
     /// If `false` (default), egui is only updated if are input events (like mouse movements) or there are some animations in the GUI.
-    ///
-    /// ```no_run
-    ///     ui.ctx().options_mut(|options| options.continuous_mode = true);
-    /// ```
     pub continuous_mode: bool,
 
     /// If any widget moves or changes id, repaint everything.

From f00fd64595ff79d34e32b2af5c6fd1dac6517c2e Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 16:23:57 +0900
Subject: [PATCH 09/14] Update epi_integration.rs

---
 crates/eframe/src/native/epi_integration.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/eframe/src/native/epi_integration.rs b/crates/eframe/src/native/epi_integration.rs
index 30dea793f21..ed45e73521f 100644
--- a/crates/eframe/src/native/epi_integration.rs
+++ b/crates/eframe/src/native/epi_integration.rs
@@ -290,7 +290,7 @@ impl EpiIntegration {
             let continuous_mode = egui_ctx.options(|options| options.continuous_mode);
             if continuous_mode {
                 let viewport_id = egui_ctx.viewport_id();
-                // TODO : Do not recall until the next repaint.
+                // TODO(rustbasic) : Do not recall until the next repaint.
                 // 1000 millis / 60 fps = 16.67 millis
                 self.egui_ctx
                     .request_repaint_after_for(std::time::Duration::from_millis(8), viewport_id);

From 8c2f7419a219b0a285a86be9544c0f422d588cd4 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 23 Mar 2024 16:58:37 +0900
Subject: [PATCH 10/14] Update memory.rs

---
 crates/egui/src/memory.rs | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/crates/egui/src/memory.rs b/crates/egui/src/memory.rs
index c43a1039566..28df0c40bbc 100644
--- a/crates/egui/src/memory.rs
+++ b/crates/egui/src/memory.rs
@@ -529,9 +529,7 @@ impl Focus {
             }
         }
 
-        let Some(current_focused) = self.focused_widget else {
-            return None;
-        };
+        let current_focused = self.focused_widget?;
 
         // In what direction we are looking for the next widget.
         let search_direction = match self.focus_direction {
@@ -554,9 +552,7 @@ impl Focus {
             }
         });
 
-        let Some(current_rect) = self.focus_widgets_cache.get(&current_focused.id) else {
-            return None;
-        };
+        let current_rect = self.focus_widgets_cache.get(&current_focused.id)?;
 
         let mut best_score = std::f32::INFINITY;
         let mut best_id = None;
@@ -647,7 +643,7 @@ impl Memory {
     }
 
     pub(crate) fn had_focus_last_frame(&self, id: Id) -> bool {
-        self.focus().id_previous_frame == Some(id)
+        self.focus().and_then(|f| f.id_previous_frame) == Some(id)
     }
 
     /// True if the given widget had keyboard focus last frame, but not this one.
@@ -673,7 +669,7 @@ impl Memory {
 
     /// Which widget has keyboard focus?
     pub fn focused(&self) -> Option<Id> {
-        self.focus().focused()
+        self.focus().and_then(|f| f.focused())
     }
 
     /// Set an event filter for a widget.
@@ -805,10 +801,8 @@ impl Memory {
         self.interactions.entry(self.viewport_id).or_default()
     }
 
-    pub(crate) fn focus(&self) -> &Focus {
-        self.focus
-            .get(&self.viewport_id)
-            .expect("Failed to get focus")
+    pub(crate) fn focus(&self) -> Option<&Focus> {
+        self.focus.get(&self.viewport_id)
     }
 
     pub(crate) fn focus_mut(&mut self) -> &mut Focus {

From 1a1c0073ccd2b93453018205cd1bfa568e1677b9 Mon Sep 17 00:00:00 2001
From: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Date: Fri, 29 Mar 2024 12:18:02 +0100
Subject: [PATCH 11/14] make `continuous_mode` work on all egui integrations

---
 crates/eframe/src/native/epi_integration.rs | 9 ---------
 crates/egui/src/context.rs                  | 2 +-
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/crates/eframe/src/native/epi_integration.rs b/crates/eframe/src/native/epi_integration.rs
index f8034590933..a6dfe5cc769 100644
--- a/crates/eframe/src/native/epi_integration.rs
+++ b/crates/eframe/src/native/epi_integration.rs
@@ -291,15 +291,6 @@ impl EpiIntegration {
                 crate::profile_scope!("App::update");
                 app.update(egui_ctx, &mut self.frame);
             }
-
-            let continuous_mode = egui_ctx.options(|options| options.continuous_mode);
-            if continuous_mode {
-                let viewport_id = egui_ctx.viewport_id();
-                // TODO(rustbasic) : Do not recall until the next repaint.
-                // 1000 millis / 60 fps = 16.67 millis
-                self.egui_ctx
-                    .request_repaint_after_for(std::time::Duration::from_millis(8), viewport_id);
-            }
         });
 
         let is_root_viewport = viewport_ui_cb.is_none();
diff --git a/crates/egui/src/context.rs b/crates/egui/src/context.rs
index 222f8ab0575..d1aa4f658fb 100644
--- a/crates/egui/src/context.rs
+++ b/crates/egui/src/context.rs
@@ -1977,7 +1977,7 @@ impl ContextImpl {
             .graphics
             .drain(self.memory.areas().order(), &self.memory.layer_transforms);
 
-        let mut repaint_needed = false;
+        let mut repaint_needed = self.memory.options.continuous_mode;
 
         {
             if self.memory.options.repaint_on_widget_change {

From 52f06b1a4fd0e10fb5c286e8808752a0686637f2 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Mon, 1 Apr 2024 01:55:33 +0900
Subject: [PATCH 12/14] Update context.rs

---
 crates/egui/src/context.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/egui/src/context.rs b/crates/egui/src/context.rs
index d3084fc82f2..74a71da2141 100644
--- a/crates/egui/src/context.rs
+++ b/crates/egui/src/context.rs
@@ -1978,7 +1978,7 @@ impl ContextImpl {
             .graphics
             .drain(self.memory.areas().order(), &self.memory.layer_transforms);
 
-        let mut repaint_needed = self.memory.options.continuous_mode;
+        let mut repaint_needed = false;
 
         {
             if self.memory.options.repaint_on_widget_change {

From ebe65d8b8f08302d30d2b5e843a1f67f2eee96d5 Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 27 Apr 2024 15:29:18 +0900
Subject: [PATCH 13/14] Update epi_integration.rs

---
 crates/eframe/src/native/epi_integration.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/crates/eframe/src/native/epi_integration.rs b/crates/eframe/src/native/epi_integration.rs
index a6dfe5cc769..7e91d7f7f10 100644
--- a/crates/eframe/src/native/epi_integration.rs
+++ b/crates/eframe/src/native/epi_integration.rs
@@ -291,6 +291,17 @@ impl EpiIntegration {
                 crate::profile_scope!("App::update");
                 app.update(egui_ctx, &mut self.frame);
             }
+
+            let viewport_id = egui_ctx.viewport_id();
+
+            let continuous_mode = egui_ctx.options(|options| options.continuous_mode);
+            if continuous_mode {
+                // let viewport_id = egui_ctx.viewport_id();
+                // TODO(rustbasic) : Do not recall until the next repaint.
+                // 1000 millis / 60 fps = 16.67 millis
+                self.egui_ctx
+                    .request_repaint_after_for(std::time::Duration::from_millis(8), viewport_id);
+            }
         });
 
         let is_root_viewport = viewport_ui_cb.is_none();

From 88c773fb48f2854f795e6c83667033ffc3fbdfdd Mon Sep 17 00:00:00 2001
From: rustbasic <127506429+rustbasic@users.noreply.github.com>
Date: Sat, 27 Apr 2024 15:38:43 +0900
Subject: [PATCH 14/14] Update epi_integration.rs

---
 crates/eframe/src/native/epi_integration.rs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/crates/eframe/src/native/epi_integration.rs b/crates/eframe/src/native/epi_integration.rs
index 7e91d7f7f10..f8034590933 100644
--- a/crates/eframe/src/native/epi_integration.rs
+++ b/crates/eframe/src/native/epi_integration.rs
@@ -292,11 +292,9 @@ impl EpiIntegration {
                 app.update(egui_ctx, &mut self.frame);
             }
 
-            let viewport_id = egui_ctx.viewport_id();
-
             let continuous_mode = egui_ctx.options(|options| options.continuous_mode);
             if continuous_mode {
-                // let viewport_id = egui_ctx.viewport_id();
+                let viewport_id = egui_ctx.viewport_id();
                 // TODO(rustbasic) : Do not recall until the next repaint.
                 // 1000 millis / 60 fps = 16.67 millis
                 self.egui_ctx