Extract the Weight and Time Distance widgets

This is a super tiny data structure that covers an edit mode, a view
mode, and an unconfigured mode. It's mostly a container so that views
don't have to preserve everything directly.

fitnesstrax/app/src/components/day.rs

@@ -16,13 +16,12 @@ You should have received a copy of the GNU General Public License along with Fit
 
 // use chrono::NaiveDate;
 // use ft_core::TraxRecord;
-use chrono::{Local, NaiveDate};
-use dimensioned::si;
+use crate::components::{TimeDistanceView, WeightView};
 use emseries::Record;
-use ft_core::{RecordType, TimeDistance, TraxRecord, Weight};
+use ft_core::{RecordType, TraxRecord, Weight};
 use glib::Object;
 use gtk::{prelude::*, subclass::prelude::*};
-use std::{cell::RefCell, rc::Rc};
+use std::cell::RefCell;
 
 pub struct DaySummaryPrivate {
     date: gtk::Label,
@@ -219,215 +218,3 @@ impl DayDetail {
         s
     }
 }
-
-pub struct WeightViewPrivate {
-    date: RefCell<NaiveDate>,
-    record: RefCell<Option<Weight>>,
-    view: RefCell<gtk::Label>,
-    edit: RefCell<gtk::Entry>,
-    current: RefCell<gtk::Widget>,
-    on_edit_finished: RefCell<Box<dyn Fn(si::Kilogram<f64>)>>,
-}
-
-impl Default for WeightViewPrivate {
-    fn default() -> Self {
-        let view = gtk::Label::builder()
-            .css_classes(["card", "weight-view"])
-            .halign(gtk::Align::Start)
-            .can_focus(true)
-            .build();
-        let edit = gtk::Entry::builder().halign(gtk::Align::Start).build();
-
-        let current = view.clone();
-
-        Self {
-            date: RefCell::new(Local::now().date_naive()),
-            record: RefCell::new(None),
-            view: RefCell::new(view),
-            edit: RefCell::new(edit),
-            current: RefCell::new(current.upcast()),
-            on_edit_finished: RefCell::new(Box::new(|_| {})),
-        }
-    }
-}
-
-#[glib::object_subclass]
-impl ObjectSubclass for WeightViewPrivate {
-    const NAME: &'static str = "WeightView";
-    type Type = WeightView;
-    type ParentType = gtk::Box;
-}
-
-impl ObjectImpl for WeightViewPrivate {}
-impl WidgetImpl for WeightViewPrivate {}
-impl BoxImpl for WeightViewPrivate {}
-
-glib::wrapper! {
-    pub struct WeightView(ObjectSubclass<WeightViewPrivate>) @extends gtk::Box, gtk::Widget;
-}
-
-impl WeightView {
-    pub fn new<OnEditFinished>(
-        date: NaiveDate,
-        weight: Option<Weight>,
-        on_edit_finished: OnEditFinished,
-    ) -> Self
-    where
-        OnEditFinished: Fn(si::Kilogram<f64>) + 'static,
-    {
-        let s: Self = Object::builder().build();
-
-        *s.imp().on_edit_finished.borrow_mut() = Box::new(on_edit_finished);
-        *s.imp().date.borrow_mut() = date;
-
-        *s.imp().record.borrow_mut() = weight;
-        s.view();
-
-        let view_click_controller = gtk::GestureClick::new();
-        view_click_controller.connect_released({
-            let s = s.clone();
-            move |_, _, _, _| {
-                s.edit();
-            }
-        });
-
-        s.imp().view.borrow().add_controller(view_click_controller);
-        s
-    }
-
-    fn view(&self) {
-        let view = self.imp().view.borrow();
-        match *self.imp().record.borrow() {
-            Some(ref record) => {
-                view.remove_css_class("dim_label");
-                view.set_label(&format!("{:?}", record.weight));
-            }
-            None => {
-                view.add_css_class("dim_label");
-                view.set_label("No weight recorded");
-            }
-        }
-        self.swap(view.clone().upcast());
-    }
-
-    fn edit(&self) {
-        let edit = self.imp().edit.borrow();
-        match *self.imp().record.borrow() {
-            Some(ref record) => edit.buffer().set_text(&format!("{:?}", record.weight)),
-            None => edit.buffer().set_text(""),
-        }
-        self.swap(edit.clone().upcast());
-        edit.grab_focus();
-    }
-
-    fn swap(&self, new_view: gtk::Widget) {
-        let mut current = self.imp().current.borrow_mut();
-        self.remove(&*current);
-        self.append(&new_view);
-        *current = new_view;
-    }
-
-    fn blur(&self) {
-        let edit = self.imp().edit.borrow();
-        if *self.imp().current.borrow() == *edit {
-            let w = edit.buffer().text().parse::<f64>().unwrap();
-            self.imp().on_edit_finished.borrow()(w * si::KG);
-
-            let mut record = self.imp().record.borrow_mut();
-            match *record {
-                Some(ref mut record) => record.weight = w * si::KG,
-                None => {
-                    *record = Some(Weight {
-                        date: self.imp().date.borrow().clone(),
-                        weight: w * si::KG,
-                    })
-                }
-            }
-        }
-        self.view();
-    }
-}
-
-#[derive(Default)]
-pub struct TimeDistanceViewPrivate {
-    record: RefCell<Option<TimeDistance>>,
-}
-
-#[glib::object_subclass]
-impl ObjectSubclass for TimeDistanceViewPrivate {
-    const NAME: &'static str = "TimeDistanceView";
-    type Type = TimeDistanceView;
-    type ParentType = gtk::Box;
-}
-
-impl ObjectImpl for TimeDistanceViewPrivate {}
-impl WidgetImpl for TimeDistanceViewPrivate {}
-impl BoxImpl for TimeDistanceViewPrivate {}
-
-glib::wrapper! {
-    pub struct TimeDistanceView(ObjectSubclass<TimeDistanceViewPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
-}
-
-impl TimeDistanceView {
-    pub fn new(type_: RecordType, record: TimeDistance) -> Self {
-        let s: Self = Object::builder().build();
-        s.set_orientation(gtk::Orientation::Vertical);
-        s.set_hexpand(true);
-
-        let first_row = gtk::Box::builder().homogeneous(true).build();
-
-        first_row.append(
-            &gtk::Label::builder()
-                .halign(gtk::Align::Start)
-                .label(&record.datetime.format("%H:%M").to_string())
-                .build(),
-        );
-
-        first_row.append(
-            &gtk::Label::builder()
-                .halign(gtk::Align::Start)
-                .label(format!("{:?}", type_))
-                .build(),
-        );
-
-        first_row.append(
-            &gtk::Label::builder()
-                .halign(gtk::Align::Start)
-                .label(
-                    record
-                        .distance
-                        .map(|dist| format!("{}", dist))
-                        .unwrap_or("".to_owned()),
-                )
-                .build(),
-        );
-
-        first_row.append(
-            &gtk::Label::builder()
-                .halign(gtk::Align::Start)
-                .label(
-                    record
-                        .duration
-                        .map(|duration| format!("{}", duration))
-                        .unwrap_or("".to_owned()),
-                )
-                .build(),
-        );
-
-        s.append(&first_row);
-
-        s.append(
-            &gtk::Label::builder()
-                .halign(gtk::Align::Start)
-                .label(
-                    record
-                        .comments
-                        .map(|comments| format!("{}", comments))
-                        .unwrap_or("".to_owned()),
-                )
-                .build(),
-        );
-
-        s
-    }
-}

fitnesstrax/app/src/components/edit_view.rs

@@ -0,0 +1,22 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+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/>.
+*/
+
+#[derive(Clone)]
+pub enum EditView<View, Edit> {
+    Unconfigured,
+    View(View),
+    Edit(Edit),
+}

fitnesstrax/app/src/components/mod.rs

@@ -17,6 +17,18 @@ You should have received a copy of the GNU General Public License along with Fit
 mod day;
 pub use day::{DayDetail, DaySummary};
 
+mod edit_view;
+pub use edit_view::EditView;
+
+mod text_entry;
+pub use text_entry::{ParseError, TextEntry};
+
+mod time_distance;
+pub use time_distance::TimeDistanceView;
+
+mod weight;
+pub use weight::WeightView;
+
 use glib::Object;
 use gtk::{prelude::*, subclass::prelude::*};
 use std::{cell::RefCell, path::PathBuf, rc::Rc};

fitnesstrax/app/src/components/text_entry.rs

@@ -0,0 +1,95 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+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 gtk::prelude::*;
+use std::{cell::RefCell, rc::Rc};
+
+pub struct ParseError;
+
+#[derive(Clone)]
+pub struct TextEntry<T: Clone> {
+    value: Rc<RefCell<Option<T>>>,
+    widget: gtk::Entry,
+    renderer: Rc<Box<dyn Fn(&T) -> String>>,
+    validator: Rc<Box<dyn Fn(&str) -> Result<T, ParseError>>>,
+}
+
+// I do not understand why the data should be 'static.
+impl<T: Clone + 'static> TextEntry<T> {
+    pub fn new<R, V>(placeholder: &str, value: Option<T>, renderer: R, validator: V) -> Self
+    where
+        R: Fn(&T) -> String + 'static,
+        V: Fn(&str) -> Result<T, ParseError> + 'static,
+    {
+        let widget = gtk::Entry::builder().placeholder_text(placeholder).build();
+        match value {
+            Some(ref v) => widget.set_text(&renderer(&v)),
+            None => {}
+        }
+
+        let s = Self {
+            value: Rc::new(RefCell::new(value)),
+            widget,
+            renderer: Rc::new(Box::new(renderer)),
+            validator: Rc::new(Box::new(validator)),
+        };
+
+        s.widget.buffer().connect_text_notify({
+            let s = s.clone();
+            move |buffer| s.handle_text_change(buffer)
+        });
+
+        s
+    }
+
+    fn handle_text_change(&self, buffer: &gtk::EntryBuffer) {
+        if buffer.text().is_empty() {
+            *self.value.borrow_mut() = None;
+            self.widget.remove_css_class("error");
+            return;
+        }
+        match (self.validator)(buffer.text().as_str()) {
+            Ok(v) => {
+                *self.value.borrow_mut() = Some(v);
+                self.widget.remove_css_class("error");
+            }
+            // need to change the border to provide a visual indicator of an error
+            Err(_) => {
+                self.widget.add_css_class("error");
+            }
+        }
+    }
+
+    pub fn value(&self) -> Option<T> {
+        self.value.borrow().clone()
+    }
+
+    pub fn set_value(&self, value: Option<T>) {
+        match value {
+            Some(ref v) => self.widget.set_text(&(self.renderer)(&v)),
+            None => {}
+        }
+        *self.value.borrow_mut() = value;
+    }
+
+    pub fn grab_focus(&self) {
+        self.widget.grab_focus();
+    }
+
+    pub fn widget(&self) -> gtk::Widget {
+        self.widget.clone().upcast::<gtk::Widget>()
+    }
+}

fitnesstrax/app/src/components/time_distance.rs

@@ -0,0 +1,107 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+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::{EditView, ParseError, TextEntry};
+// use chrono::{Local, NaiveDate};
+// use dimensioned::si;
+use ft_core::{RecordType, TimeDistance};
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::cell::RefCell;
+
+#[derive(Default)]
+pub struct TimeDistanceViewPrivate {
+    record: RefCell<Option<TimeDistance>>,
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for TimeDistanceViewPrivate {
+    const NAME: &'static str = "TimeDistanceView";
+    type Type = TimeDistanceView;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for TimeDistanceViewPrivate {}
+impl WidgetImpl for TimeDistanceViewPrivate {}
+impl BoxImpl for TimeDistanceViewPrivate {}
+
+glib::wrapper! {
+    pub struct TimeDistanceView(ObjectSubclass<TimeDistanceViewPrivate>) @extends gtk::Box, gtk::Widget, @implements gtk::Orientable;
+}
+
+impl TimeDistanceView {
+    pub fn new(type_: RecordType, record: TimeDistance) -> Self {
+        let s: Self = Object::builder().build();
+        s.set_orientation(gtk::Orientation::Vertical);
+        s.set_hexpand(true);
+
+        let first_row = gtk::Box::builder().homogeneous(true).build();
+
+        first_row.append(
+            &gtk::Label::builder()
+                .halign(gtk::Align::Start)
+                .label(&record.datetime.format("%H:%M").to_string())
+                .build(),
+        );
+
+        first_row.append(
+            &gtk::Label::builder()
+                .halign(gtk::Align::Start)
+                .label(format!("{:?}", type_))
+                .build(),
+        );
+
+        first_row.append(
+            &gtk::Label::builder()
+                .halign(gtk::Align::Start)
+                .label(
+                    record
+                        .distance
+                        .map(|dist| format!("{}", dist))
+                        .unwrap_or("".to_owned()),
+                )
+                .build(),
+        );
+
+        first_row.append(
+            &gtk::Label::builder()
+                .halign(gtk::Align::Start)
+                .label(
+                    record
+                        .duration
+                        .map(|duration| format!("{}", duration))
+                        .unwrap_or("".to_owned()),
+                )
+                .build(),
+        );
+
+        s.append(&first_row);
+
+        s.append(
+            &gtk::Label::builder()
+                .halign(gtk::Align::Start)
+                .label(
+                    record
+                        .comments
+                        .map(|comments| format!("{}", comments))
+                        .unwrap_or("".to_owned()),
+                )
+                .build(),
+        );
+
+        s
+    }
+}

fitnesstrax/app/src/components/weight.rs

@@ -0,0 +1,186 @@
+/*
+Copyright 2023, Savanni D'Gerinel <savanni@luminescent-dreams.com>
+
+This file is part of FitnessTrax.
+
+FitnessTrax is free software: you can redistribute it and/or modify it under the terms of the GNU
+General Public License as published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.
+
+FitnessTrax is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+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::{EditView, ParseError, TextEntry};
+use chrono::{Local, NaiveDate};
+use dimensioned::si;
+use ft_core::Weight;
+use glib::Object;
+use gtk::{prelude::*, subclass::prelude::*};
+use std::cell::RefCell;
+
+pub struct WeightViewPrivate {
+    date: RefCell<NaiveDate>,
+    record: RefCell<Option<Weight>>,
+
+    widget: RefCell<EditView<gtk::Label, TextEntry<si::Kilogram<f64>>>>,
+
+    on_edit_finished: RefCell<Box<dyn Fn(si::Kilogram<f64>)>>,
+}
+
+impl Default for WeightViewPrivate {
+    fn default() -> Self {
+        Self {
+            date: RefCell::new(Local::now().date_naive()),
+            record: RefCell::new(None),
+            widget: RefCell::new(EditView::Unconfigured),
+            on_edit_finished: RefCell::new(Box::new(|_| {})),
+        }
+    }
+}
+
+#[glib::object_subclass]
+impl ObjectSubclass for WeightViewPrivate {
+    const NAME: &'static str = "WeightView";
+    type Type = WeightView;
+    type ParentType = gtk::Box;
+}
+
+impl ObjectImpl for WeightViewPrivate {}
+impl WidgetImpl for WeightViewPrivate {}
+impl BoxImpl for WeightViewPrivate {}
+
+glib::wrapper! {
+    pub struct WeightView(ObjectSubclass<WeightViewPrivate>) @extends gtk::Box, gtk::Widget;
+}
+
+impl WeightView {
+    pub fn new<OnEditFinished>(
+        date: NaiveDate,
+        weight: Option<Weight>,
+        on_edit_finished: OnEditFinished,
+    ) -> Self
+    where
+        OnEditFinished: Fn(si::Kilogram<f64>) + 'static,
+    {
+        let s: Self = Object::builder().build();
+
+        *s.imp().on_edit_finished.borrow_mut() = Box::new(on_edit_finished);
+        *s.imp().date.borrow_mut() = date;
+
+        *s.imp().record.borrow_mut() = weight;
+        s.view();
+
+        s
+    }
+
+    fn view(&self) {
+        let view = gtk::Label::builder()
+            .css_classes(["card", "weight-view"])
+            .halign(gtk::Align::Start)
+            .can_focus(true)
+            .build();
+
+        let view_click_controller = gtk::GestureClick::new();
+        view_click_controller.connect_released({
+            let s = self.clone();
+            move |_, _, _, _| {
+                s.edit();
+            }
+        });
+
+        view.add_controller(view_click_controller);
+
+        match *self.imp().record.borrow() {
+            Some(ref record) => {
+                view.remove_css_class("dim_label");
+                view.set_label(&format!("{:?}", record.weight));
+            }
+            None => {
+                view.add_css_class("dim_label");
+                view.set_label("No weight recorded");
+            }
+        }
+
+        self.swap(EditView::View(view));
+    }
+
+    fn edit(&self) {
+        let edit = TextEntry::<si::Kilogram<f64>>::new(
+            "weight",
+            None,
+            |val: &si::Kilogram<f64>| val.to_string(),
+            |v: &str| v.parse::<f64>().map(|w| w * si::KG).map_err(|_| ParseError),
+        );
+
+        match *self.imp().record.borrow() {
+            Some(ref record) => edit.set_value(Some(record.weight)),
+            None => edit.set_value(None),
+        }
+
+        self.swap(EditView::Edit(edit.clone()));
+        edit.grab_focus();
+    }
+
+    fn swap(&self, new_view: EditView<gtk::Label, TextEntry<si::Kilogram<f64>>>) {
+        let mut widget = self.imp().widget.borrow_mut();
+        match *widget {
+            EditView::Unconfigured => {}
+            EditView::View(ref view) => self.remove(view),
+            EditView::Edit(ref editor) => self.remove(&editor.widget()),
+        }
+
+        match new_view {
+            EditView::Unconfigured => {}
+            EditView::View(ref view) => self.append(view),
+            EditView::Edit(ref editor) => self.append(&editor.widget()),
+        }
+        *widget = new_view;
+    }
+
+    pub fn blur(&self) {
+        match *self.imp().widget.borrow() {
+            EditView::Unconfigured => {}
+            EditView::View(_) => {}
+            EditView::Edit(ref editor) => {
+                let weight = editor.value();
+                // This has really turned into rubbish
+                // on_edit_finished needs to accept a full record now.
+                // needs to be possible to delete a record if the value is None
+                // it's hard to be sure whether I need the full record object or if I need to update
+                // it. I probably don't. I think I need to borrow it and call on_edit_finished with an
+                // updated version of it.
+                // on_edit_finished still doesn't have a way to support a delete operation
+                let record = match (self.imp().record.borrow().clone(), weight) {
+                    // update an existing record
+                    (Some(record), Some(weight)) => Some(Weight {
+                        date: record.date,
+                        weight,
+                    }),
+
+                    // create a new record
+                    (None, Some(weight)) => Some(Weight {
+                        date: self.imp().date.borrow().clone(),
+                        weight,
+                    }),
+
+                    // do nothing or delete an existing record
+                    (_, None) => None,
+                };
+
+                match record {
+                    Some(record) => {
+                        self.imp().on_edit_finished.borrow()(record.weight);
+                        *self.imp().record.borrow_mut() = Some(record);
+                    }
+                    None => {}
+                }
+            }
+        }
+
+        self.view();
+    }
+}