Apply the value of a date field to the historical view

Date fields can now be updated and their values retrieved. So now I have added a button that retrieves the range of the date field and updates the historical view in response to them.

fitnesstrax/app/src/components/date_field.rs

@@ -14,7 +14,7 @@ General Public License for more details.
 You should have received a copy of the GNU General Public License along with FitnessTrax. If not, see <https://www.gnu.org/licenses/>.
 */
 
-use crate::{components::TextEntry, types::ParseError};
+use crate::{components::{i32_field, TextEntry, month_field}, types::ParseError};
 use chrono::{Datelike, Local};
 use glib::Object;
 use gtk::{prelude::*, subclass::prelude::*};
@@ -28,7 +28,7 @@ enum Part {
 }
 
 pub struct DateFieldPrivate {
-    value: Rc<RefCell<chrono::NaiveDate>>,
+    date: Rc<RefCell<chrono::NaiveDate>>,
     year: TextEntry<i32>,
     month: TextEntry<u32>,
     day: TextEntry<u32>,
@@ -41,36 +41,69 @@ impl ObjectSubclass for DateFieldPrivate {
     type ParentType = gtk::Box;
 
     fn new() -> Self {
-        let date = Local::now().date_naive();
-        let year = TextEntry::new(
-            "year",
-            Some(date.year()),
-            |v| format!("{}", v),
-            |v| v.parse::<i32>().map_err(|_| ParseError),
-            |_| {},
+        let date = Rc::new(RefCell::new(Local::now().date_naive()));
+
+        let year = i32_field(date.borrow().year(),
+            {
+                let date = date.clone();
+                move |value| {
+                    if let Some(year) = value {
+                        let mut date = date.borrow_mut();
+                        if let Some(new_date) = date.with_year(year) {
+                            *date = new_date;
+                        }
+                    }
+                }
+            },
         );
-        let month = TextEntry::new(
-            "month",
-            Some(date.month()),
-            |v| format!("{}", v),
-            |v| v.parse::<u32>().map_err(|_| ParseError),
-            |_| {},
+        year.widget.set_max_length(4);
+        year.add_css_class("date-field__year");
+
+        let month = month_field(
+            date.borrow().month(),
+            {
+                let date = date.clone();
+                move |value| {
+                    if let Some(month) = value {
+                        let mut date = date.borrow_mut();
+                        if let Some(new_date) = date.with_month(month) {
+                            *date = new_date;
+                        }
+                    }
+                }
+            },
         );
+        month.add_css_class("date-field__month");
+
+        /* Modify this so that it enforces the number of days per month */
         let day = TextEntry::new(
             "day",
-            Some(date.day()),
+            Some(date.borrow().day()),
             |v| format!("{}", v),
             |v| v.parse::<u32>().map_err(|_| ParseError),
-            |_| {},
+            {
+                let date = date.clone();
+                move |value| {
+                    if let Some(day) = value {
+                        let mut date = date.borrow_mut();
+                        if let Some(new_date) = date.with_day(day) {
+                            *date = new_date;
+                        }
+                    }
+                }
+            },
+
         );
+        day.add_css_class("date-field__day");
 
         Self {
-            value: Rc::new(RefCell::new(date.clone())),
+            date,
             year,
             month,
             day,
         }
     }
+
 }
 
 impl ObjectImpl for DateFieldPrivate {}
@@ -97,17 +130,48 @@ impl DateField {
         s.imp().month.set_value(Some(date.month()));
         s.imp().day.set_value(Some(date.day()));
 
-        *s.imp().value.borrow_mut() = date;
+        *s.imp().date.borrow_mut() = date;
 
         s
     }
-}
 
-/* As soon as the field gets focus, highlight the first element
- */
+
+    pub fn date(&self) -> chrono::NaiveDate {
+        self.imp().date.borrow().clone()
+    }
+    /*
+    pub fn is_valid(&self) -> bool {
+        false
+    }
+    */
+}
 
 #[cfg(test)]
 mod test {
     use super::*;
     use crate::gtk_init::gtk_init;
+
+    // Enabling this test pushes tests on the TextField into an infinite loop. That likely indicates a bad interaction within the TextField itself, and that is going to need to be fixed.
+    #[test]
+    #[ignore]
+    fn it_allows_valid_dates() {
+        let reference = chrono::NaiveDate::from_ymd_opt(2006, 01, 02).unwrap();
+        let field = DateField::new(reference);
+        field.imp().year.set_value(Some(2023));
+        field.imp().month.set_value(Some(10));
+        field.imp().day.set_value(Some(13));
+        assert!(field.is_valid());
+    }
+    
+    #[test]
+    #[ignore]
+    fn it_disallows_out_of_range_months() {
+        unimplemented!()
+    }
+
+    #[test]
+    #[ignore]
+    fn it_allows_days_within_range_for_month() {
+        unimplemented!()
+    }
 }

fitnesstrax/app/src/components/mod.rs

@@ -31,7 +31,7 @@ mod steps;
 pub use steps::{steps_editor, Steps};
 
 mod text_entry;
-pub use text_entry::{distance_field, duration_field, time_field, weight_field, TextEntry};
+pub use text_entry::{distance_field, duration_field, time_field, weight_field, i32_field, month_field, TextEntry};
 
 mod time_distance;
 pub use time_distance::{time_distance_detail, time_distance_summary};

fitnesstrax/app/src/components/text_entry.rs

@@ -23,11 +23,12 @@ use std::{cell::RefCell, rc::Rc};
 pub type Parser<T> = dyn Fn(&str) -> Result<T, ParseError>;
 pub type OnUpdate<T> = dyn Fn(Option<T>);
 
+// TextEntry is not a proper widget because I was never able to figure out how to do a type parameterization on a GTK widget.
 #[derive(Clone)]
 pub struct TextEntry<T: Clone + std::fmt::Debug> {
     value: Rc<RefCell<Option<T>>>,
 
-    widget: gtk::Entry,
+    pub widget: gtk::Entry,
     renderer: Rc<dyn Fn(&T) -> String>,
     parser: Rc<Parser<T>>,
     on_update: Rc<OnUpdate<T>>,
@@ -82,7 +83,6 @@ impl<T: Clone + std::fmt::Debug + 'static> TextEntry<T> {
         if let Some(ref v) = val {
             self.widget.set_text(&(self.renderer)(v));
         }
-        *self.value.borrow_mut() = val;
     }
 
     fn handle_text_change(&self, buffer: &gtk::EntryBuffer) {
@@ -105,6 +105,14 @@ impl<T: Clone + std::fmt::Debug + 'static> TextEntry<T> {
         }
     }
 
+    pub fn add_css_class(&self, class_: &str) {
+        self.widget.add_css_class(class_);
+    }
+
+    pub fn remove_css_class(&self, class_: &str) {
+        self.widget.remove_css_class(class_);
+    }
+
     pub fn widget(&self) -> gtk::Widget {
         self.widget.clone().upcast::<gtk::Widget>()
     }
@@ -181,6 +189,45 @@ where
     )
 }
 
+pub fn i32_field<OnUpdate>(
+    value: i32,
+    on_update: OnUpdate,
+) -> TextEntry<i32>
+where
+    OnUpdate: Fn(Option<i32>) + 'static,
+{
+    TextEntry::new(
+        "0",
+        Some(value),
+        |val| format!("{}", val),
+        |v|
+            v.parse::<i32>().map_err(|_| ParseError),
+        on_update,
+    )
+}
+
+pub fn month_field<OnUpdate>(
+    value: u32,
+    on_update: OnUpdate,
+) -> TextEntry<u32>
+where
+    OnUpdate: Fn(Option<u32>) + 'static,
+{
+    TextEntry::new(
+        "0",
+        Some(value),
+        |val| format!("{}", val),
+        |v| {
+            let val = v.parse::<u32>().map_err(|_| ParseError)?;
+            if val == 0 || val > 12 {
+                return Err(ParseError);
+            }
+            Ok(val)
+        },
+        on_update,
+    )
+}
+
 #[cfg(test)]
 mod test {
     use super::*;

fitnesstrax/app/src/views/historical_view.rs

@@ -109,12 +109,29 @@ impl HistoricalView {
 
         *s.imp().app.borrow_mut() = Some(app);
 
+        let start_date = DateField::new(interval.start);
+        let end_date = DateField::new(interval.end);
+        let search_button = gtk::Button::with_label("Search");
+        search_button.connect_clicked({
+            let s = s.clone();
+            let start_date = start_date.clone();
+            let end_date = end_date.clone();
+            move |_| {
+                let interval = DayInterval {
+                    start: start_date.date(),
+                    end: end_date.date(),
+                };
+                s.set_interval(interval);
+            }
+        });
+
         let date_row = gtk::Box::builder()
             .orientation(gtk::Orientation::Horizontal)
             .build();
-        date_row.append(&DateField::new(interval.start));
+        date_row.append(&start_date);
         date_row.append(&gtk::Label::new(Some("to")));
-        date_row.append(&DateField::new(interval.end));
+        date_row.append(&end_date);
+        date_row.append(&search_button);
 
         let quick_picker = gtk::Box::builder()
             .orientation(gtk::Orientation::Horizontal)