From 70d528ba33788267afc6491c05034cb829990b5d Mon Sep 17 00:00:00 2001
From: Emil Ernerfeldt <emil.ernerfeldt@gmail.com>
Date: Wed, 24 Jan 2024 14:14:10 +0100
Subject: [PATCH] Explose a simple API

---
 .../text_selection/label_text_selection.rs    | 24 +++++++++++--------
 crates/egui/src/text_selection/mod.rs         |  2 +-
 crates/egui/src/widgets/hyperlink.rs          |  4 +++-
 crates/egui/src/widgets/label.rs              |  4 +++-
 4 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/crates/egui/src/text_selection/label_text_selection.rs b/crates/egui/src/text_selection/label_text_selection.rs
index d35cb859af0..975b64eaf63 100644
--- a/crates/egui/src/text_selection/label_text_selection.rs
+++ b/crates/egui/src/text_selection/label_text_selection.rs
@@ -10,16 +10,6 @@ use super::{
 /// Turn on to help debug this
 const DEBUG: bool = false; // TODO: don't merge this while `true`
 
-/// Handle text selection state for a label or similar widget.
-///
-/// Make sure the widget senses clicks and drags.
-///
-/// This should be called after painting the text, because this will also
-/// paint the text cursor/selection on top.
-pub fn label_text_selection(ui: &Ui, response: &Response, galley_pos: Pos2, galley: &Galley) {
-    LabelSelectionState::label_text_selection(ui, response, galley_pos, galley);
-}
-
 fn paint_selection(
     ui: &Ui,
     _response: &Response,
@@ -238,6 +228,14 @@ impl LabelSelectionState {
         state.store(ctx);
     }
 
+    pub fn has_selection(&self) -> bool {
+        self.selection.is_some()
+    }
+
+    pub fn clear_selection(&mut self) {
+        self.selection = None;
+    }
+
     fn copy_text(&mut self, galley_pos: Pos2, galley: &Galley, cursor_range: &CursorRange) {
         let new_galley_rect = Rect::from_min_size(galley_pos, galley.size());
         let new_text = selected_text(galley, cursor_range);
@@ -285,6 +283,12 @@ impl LabelSelectionState {
         self.last_copied_galley_rect = Some(new_galley_rect);
     }
 
+    /// Handle text selection state for a label or similar widget.
+    ///
+    /// Make sure the widget senses clicks and drags.
+    ///
+    /// This should be called after painting the text, because this will also
+    /// paint the text cursor/selection on top.
     pub fn label_text_selection(ui: &Ui, response: &Response, galley_pos: Pos2, galley: &Galley) {
         let mut state = Self::load(ui.ctx());
         state.on_label(ui, response, galley_pos, galley);
diff --git a/crates/egui/src/text_selection/mod.rs b/crates/egui/src/text_selection/mod.rs
index bf193fbcbef..5be95eb53bf 100644
--- a/crates/egui/src/text_selection/mod.rs
+++ b/crates/egui/src/text_selection/mod.rs
@@ -9,5 +9,5 @@ pub mod text_cursor_state;
 pub mod visuals;
 
 pub use cursor_range::{CCursorRange, CursorRange, PCursorRange};
-pub use label_text_selection::{label_text_selection, LabelSelectionState};
+pub use label_text_selection::LabelSelectionState;
 pub use text_cursor_state::TextCursorState;
diff --git a/crates/egui/src/widgets/hyperlink.rs b/crates/egui/src/widgets/hyperlink.rs
index ce8089ba60c..f4a508e64f7 100644
--- a/crates/egui/src/widgets/hyperlink.rs
+++ b/crates/egui/src/widgets/hyperlink.rs
@@ -1,5 +1,7 @@
 use crate::*;
 
+use self::text_selection::LabelSelectionState;
+
 /// Clickable text, that looks like a hyperlink.
 ///
 /// To link to a web page, use [`Hyperlink`], [`Ui::hyperlink`] or [`Ui::hyperlink_to`].
@@ -53,7 +55,7 @@ impl Widget for Link {
 
             let selectable = ui.style().interaction.selectable_labels;
             if selectable {
-                crate::text_selection::label_text_selection(ui, &response, galley_pos, &galley);
+                LabelSelectionState::label_text_selection(ui, &response, galley_pos, &galley);
             }
 
             if response.hovered() {
diff --git a/crates/egui/src/widgets/label.rs b/crates/egui/src/widgets/label.rs
index b780c40b999..b68fb4337e1 100644
--- a/crates/egui/src/widgets/label.rs
+++ b/crates/egui/src/widgets/label.rs
@@ -2,6 +2,8 @@ use std::sync::Arc;
 
 use crate::*;
 
+use self::text_selection::LabelSelectionState;
+
 /// Static text.
 ///
 /// Usually it is more convenient to use [`Ui::label`].
@@ -257,7 +259,7 @@ impl Widget for Label {
 
             let selectable = selectable.unwrap_or_else(|| ui.style().interaction.selectable_labels);
             if selectable {
-                crate::text_selection::label_text_selection(ui, &response, galley_pos, &galley);
+                LabelSelectionState::label_text_selection(ui, &response, galley_pos, &galley);
             }
         }