feat: dynamic tooltips

Resolves #36

docs/Configuration guide.md

@@ -279,10 +279,10 @@ The following table lists each of the top-level bar config options:
 The following table lists each of the module-level options that are present on **all** modules.
 For details on available modules and each of their config options, check the sidebar.
 
-For information on the `Script` type, see [here](script).
+For information on the `Script` type, and embedding scripts in strings, see [here](script).
 
 | Name       | Type               | Default | Description                                                                                                        |
 |------------|--------------------|---------|--------------------------------------------------------------------------------------------------------------------|
 | `show_if`  | `Script [polling]` | `null`  | Polls the script to check its exit code. If exit code is zero, the module is shown. For other codes, it is hidden. |
 | `on_click` | `Script [polling]` | `null`  | Runs the script when the module is clicked.                                                                        |
-| `tooltip`  | `string`           | `null`  | Shows this text on hover.                                                                                          |
+| `tooltip`  | `string`           | `null`  | Shows this text on hover. Supports embedding scripts between `{{double braces}}`.                                  |

docs/Scripts.md

@@ -42,6 +42,17 @@ For example:
 poll:5000:uptime -p | cut -d ' ' -f2-
 ```
 
+#### Embedding
+
+Some string config options support "embedding scripts". This allows you to mix static/dynamic content.
+An example of this is the common `tooltip` option.
+
+Scripts can be embedded in these cases using `{{double braces}}` and the shorthand syntax:
+
+```json
+"Up: {{30000:uptime -p | cut -d ' ' -f2-}}"
+```
+
 ### Longhand (object)
 
 An object consisting of the `cmd` key and optionally the `mode` and/or `interval` keys.

examples/config.corn

@@ -67,6 +67,8 @@ let {
                 { type = "label" name = "uptime" label = "Up: {{30000:uptime -p | cut -d ' ' -f2-}}" }
             ]
         } ]
+
+        tooltip = "Up: {{30000:uptime -p | cut -d ' ' -f2-}}"
     }
 
     $left = [ $workspaces $launcher ]

src/bar.rs

@@ -7,6 +7,7 @@ use crate::modules::workspaces::WorkspaceUpdate;
 use crate::modules::{Module, ModuleInfoBuilder, ModuleLocation, ModuleUpdateEvent, WidgetContext};
 use crate::popup::Popup;
 use crate::script::{OutputStream, Script};
+use crate::widgets::DynamicString;
 use crate::{await_sync, Config};
 use chrono::{DateTime, Local};
 use color_eyre::Result;
@@ -212,7 +213,10 @@ fn add_modules(
             }
 
             if let Some(tooltip) = common.tooltip {
-                container.set_tooltip_text(Some(&tooltip));
+                DynamicString::new(&tooltip, move |string| {
+                    container.set_tooltip_text(Some(&string));
+                    Continue(true)
+                });
             }
 
             let has_popup = widget.popup.is_some();

src/modules/custom.rs

@@ -2,7 +2,7 @@ use crate::config::CommonConfig;
 use crate::modules::{Module, ModuleInfo, ModuleUpdateEvent, ModuleWidget, WidgetContext};
 use crate::popup::{ButtonGeometry, Popup};
 use crate::script::Script;
-use crate::widgets::DynamicLabel;
+use crate::widgets::DynamicString;
 use color_eyre::{Report, Result};
 use gtk::prelude::*;
 use gtk::{Button, Label, Orientation};
@@ -61,7 +61,7 @@ impl Widget {
     fn add_to(self, parent: &gtk::Box, tx: Sender<ExecEvent>, bar_orientation: Orientation) {
         match self.widget_type {
             WidgetType::Box => parent.add(&self.into_box(&tx, bar_orientation)),
-            WidgetType::Label => parent.add(&self.into_label().label),
+            WidgetType::Label => parent.add(&self.into_label()),
             WidgetType::Button => parent.add(&self.into_button(tx, bar_orientation)),
         }
     }
@@ -95,7 +95,7 @@ impl Widget {
     }
 
     /// Creates a `gtk::Label` from this widget
-    fn into_label(self) -> DynamicLabel {
+    fn into_label(self) -> Label {
         let mut builder = Label::builder().use_markup(true);
 
         if let Some(name) = self.name {
@@ -110,7 +110,17 @@ impl Widget {
 
         let text = self.label.map_or_else(String::new, |text| text);
 
-        DynamicLabel::new(label, &text)
+        {
+            let label = label.clone();
+            DynamicString::new(&text, move |string| {
+                label.set_label(&string);
+                Continue(true)
+            });
+        }
+
+        label
+
+        // DynamicString::new(label, &text)
     }
 
     /// Creates a `gtk::Button` from this widget

src/widgets/dynamic_label.rs

@@ -5,17 +5,20 @@ use std::sync::{Arc, Mutex};
 use tokio::spawn;
 
 #[derive(Debug)]
-enum DynamicLabelSegment {
+enum DynamicStringSegment {
     Static(String),
     Dynamic(Script),
 }
 
-pub struct DynamicLabel {
-    pub label: gtk::Label,
+pub struct DynamicString {
+    // pub label: gtk::Label,
 }
 
-impl DynamicLabel {
-    pub fn new(label: gtk::Label, input: &str) -> Self {
+impl DynamicString {
+    pub fn new<F>(input: &str, f: F) -> Self
+    where
+        F: FnMut(String) -> Continue + 'static,
+    {
         let mut segments = vec![];
 
         let mut chars = input.chars().collect::<Vec<_>>();
@@ -36,7 +39,7 @@ impl DynamicLabel {
                 let len = str.len();
 
                 (
-                    DynamicLabelSegment::Dynamic(Script::from(str.as_str())),
+                    DynamicStringSegment::Dynamic(Script::from(str.as_str())),
                     len + SKIP_BRACKETS,
                 )
             } else {
@@ -49,7 +52,7 @@ impl DynamicLabel {
 
                 let len = str.len();
 
-                (DynamicLabelSegment::Static(str), len)
+                (DynamicStringSegment::Static(str), len)
             };
 
             assert_ne!(skip, 0);
@@ -63,13 +66,13 @@ impl DynamicLabel {
 
         for (i, segment) in segments.into_iter().enumerate() {
             match segment {
-                DynamicLabelSegment::Static(str) => {
+                DynamicStringSegment::Static(str) => {
                     label_parts
                         .lock()
                         .expect("Failed to get lock on label parts")
                         .insert(i, str);
                 }
-                DynamicLabelSegment::Dynamic(script) => {
+                DynamicStringSegment::Dynamic(script) => {
                     let tx = tx.clone();
                     let label_parts = label_parts.clone();
 
@@ -77,11 +80,21 @@ impl DynamicLabel {
                         script
                             .run(|(out, _)| {
                                 if let OutputStream::Stdout(out) = out {
-                                    label_parts
+                                    let mut label_parts = label_parts
                                         .lock()
-                                        .expect("Failed to get lock on label parts")
+                                        .expect("Failed to get lock on label parts");
+
+                                    label_parts
+                                        // .lock()
+                                        // .expect("Failed to get lock on label parts")
                                         .insert(i, out);
-                                    tx.send(()).expect("Failed to send update");
+
+                                    let string = label_parts
+                                        .iter()
+                                        .map(|(_, part)| part.as_str())
+                                        .collect::<String>();
+
+                                    tx.send(string).expect("Failed to send update");
                                 }
                             })
                             .await;
@@ -90,25 +103,22 @@ impl DynamicLabel {
             }
         }
 
-        tx.send(()).expect("Failed to send update");
-
+        // initialize
         {
-            let label = label.clone();
-            rx.attach(None, move |_| {
-                let new_label = label_parts
+            let label_parts = label_parts
                 .lock()
                 .expect("Failed to get lock on label parts")
                 .iter()
                 .map(|(_, part)| part.as_str())
                 .collect::<String>();
 
-                label.set_label(new_label.as_str());
-
-                Continue(true)
-            });
+            tx.send(label_parts).expect("Failed to send update");
         }
 
-        Self { label }
+        rx.attach(None, f);
+
+        // Self { label }
+        Self {}
     }
 }
 
@@ -121,7 +131,13 @@ mod tests {
         // TODO: see if we can run gtk tests in ci
         if gtk::init().is_ok() {
             let label = gtk::Label::new(None);
-            DynamicLabel::new(label, "Uptime: {{1000:uptime -p | cut -d ' ' -f2-}}");
+            DynamicString::new(
+                "Uptime: {{1000:uptime -p | cut -d ' ' -f2-}}",
+                move |string| {
+                    label.set_label(string);
+                    Continue(true)
+                },
+            );
         }
     }
 }

src/widgets/mod.rs

@@ -1,3 +1,3 @@
 mod dynamic_label;
 
-pub use dynamic_label::DynamicLabel;
+pub use dynamic_label::DynamicString;