clipboard: Add value_fn to get copy value with callback to Clipboard. (#557)

crates/story/src/lib.rs

@@ -45,8 +45,8 @@ pub use webview_story::WebViewStory;
 use gpui::{
     actions, div, prelude::FluentBuilder as _, px, AnyElement, AnyView, AppContext, Context as _,
     Div, EventEmitter, FocusableView, Global, Hsla, InteractiveElement, IntoElement, Model,
-    ParentElement, Render, SharedString, Styled as _, View, ViewContext, VisualContext,
-    WindowContext,
+    ParentElement, Render, SharedString, StatefulInteractiveElement, Styled as _, View,
+    ViewContext, VisualContext, WindowContext,
 };
 
 use ui::{
@@ -388,6 +388,7 @@ impl Render for StoryContainer {
         v_flex()
             .id("story-container")
             .size_full()
+            .overflow_y_scroll()
             .track_focus(&self.focus_handle)
             .on_action(cx.listener(Self::on_action_panel_info))
             .when(self.description.len() > 0, |this| {
@@ -402,7 +403,14 @@ impl Render for StoryContainer {
                 )
             })
             .when_some(self.story.clone(), |this, story| {
-                this.child(v_flex().id("story-children").size_full().p_4().child(story))
+                this.child(
+                    v_flex()
+                        .id("story-children")
+                        .w_full()
+                        .flex_1()
+                        .p_4()
+                        .child(story),
+                )
             })
     }
 }

crates/story/src/text_story.rs

@@ -1,5 +1,5 @@
 use gpui::{
-    div, px, rems, IntoElement, ParentElement, Render, Styled, View, ViewContext,
+    div, px, rems, IntoElement, ParentElement, Render, SharedString, Styled, View, ViewContext,
     VisualContext as _, WindowContext,
 };
 
@@ -235,7 +235,12 @@ impl Render for TextStory {
                         .child(
                             Clipboard::new("clipboard1")
                                 .content(|_| Label::new("Click icon to copy"))
-                                .value("Copied!")
+                                .value_fn({
+                                    let view = cx.view().clone();
+                                    move |cx| {
+                                        SharedString::from(format!("Check1 :{}", view.read(cx).check1))
+                                    }
+                                })
                                 .on_copied(|value, _| println!("Copied value: {}", value)),
                         )
                         .child(

crates/ui/src/clipboard.rs

@@ -13,6 +13,7 @@ use crate::{
 pub struct Clipboard {
     id: ElementId,
     value: SharedString,
+    value_fn: Option<Rc<dyn Fn(&mut WindowContext) -> SharedString>>,
     content_builder: Option<Box<dyn Fn(&mut WindowContext) -> AnyElement>>,
     copied_callback: Option<Rc<dyn Fn(SharedString, &mut WindowContext)>>,
 }
@@ -21,7 +22,8 @@ impl Clipboard {
     pub fn new(id: impl Into<ElementId>) -> Self {
         Self {
             id: id.into(),
-            value: "".into(),
+            value: SharedString::default(),
+            value_fn: None,
             content_builder: None,
             copied_callback: None,
         }
@@ -32,12 +34,14 @@ impl Clipboard {
         self
     }
 
-    pub fn content<E, F>(mut self, element_builder: F) -> Self
-    where
-        E: IntoElement,
-        F: Fn(&mut WindowContext) -> E + 'static,
-    {
-        self.content_builder = Some(Box::new(move |cx| element_builder(cx).into_any_element()));
+    /// Set the value of the clipboard to the result of the given function. Default is None.
+    ///
+    /// When used this, the copy value will use the result of the function.
+    pub fn value_fn(
+        mut self,
+        value: impl Fn(&mut WindowContext) -> SharedString + 'static,
+    ) -> Self {
+        self.value_fn = Some(Rc::new(value));
         self
     }
 
@@ -48,6 +52,15 @@ impl Clipboard {
         self.copied_callback = Some(Rc::new(handler));
         self
     }
+
+    pub fn content<E, F>(mut self, builder: F) -> Self
+    where
+        E: IntoElement,
+        F: Fn(&mut WindowContext) -> E + 'static,
+    {
+        self.content_builder = Some(Box::new(move |cx| builder(cx).into_any_element()));
+        self
+    }
 }
 
 impl IntoElement for Clipboard {
@@ -89,6 +102,7 @@ impl Element for Clipboard {
             let copied_callback = self.copied_callback.as_ref().map(|c| c.clone());
             let copied = state.copied.clone();
             let copide_value = *copied.borrow();
+            let value_fn = self.value_fn.clone();
 
             let mut element = h_flex()
                 .gap_1()
@@ -106,6 +120,10 @@ impl Element for Clipboard {
                         .when(!copide_value, |this| {
                             this.on_click(move |_, cx| {
                                 cx.stop_propagation();
+                                let value = value_fn
+                                    .as_ref()
+                                    .map(|f| f(cx))
+                                    .unwrap_or_else(|| value.clone());
                                 cx.write_to_clipboard(ClipboardItem::new_string(value.to_string()));
                                 *copied.borrow_mut() = true;