Most of the churn here is due to changing the inner view from an
`EditView` to a `LinearLayout`. Also prompted the introduction of two
small helpers .inner() and .inner_mut() to simplify things everywhere
else in the view.
Signed-off-by: Christoph Heiss <c.he...@proxmox.com>
---
Changes v1 -> v2:
* no changes
Changes v2 -> v3:
* added #[allow(unused)] attribute to ::new_with_suffix(), to avoid
warnings until it is actually used
proxmox-tui-installer/src/views/mod.rs | 105 +++++++++++++++++++------
1 file changed, 83 insertions(+), 22 deletions(-)
diff --git a/proxmox-tui-installer/src/views/mod.rs
b/proxmox-tui-installer/src/views/mod.rs
index aa24fa4..8882ce9 100644
--- a/proxmox-tui-installer/src/views/mod.rs
+++ b/proxmox-tui-installer/src/views/mod.rs
@@ -19,16 +19,38 @@ mod timezone;
pub use timezone::*;
pub struct NumericEditView<T> {
- view: EditView,
+ view: LinearLayout,
max_value: Option<T>,
max_content_width: Option<usize>,
allow_empty: bool,
}
impl<T: Copy + ToString + FromStr + PartialOrd> NumericEditView<T> {
+ /// Creates a new [`NumericEditView`], with the value set to `0`.
pub fn new() -> Self {
+ let view =
LinearLayout::horizontal().child(EditView::new().content("0").full_width());
+
+ Self {
+ view,
+ max_value: None,
+ max_content_width: None,
+ allow_empty: false,
+ }
+ }
+
+ /// Creates a new [`NumericEditView`], with the value set to `0` and a
label to the right of it
+ /// with the given content, separated by a space.
+ ///
+ /// # Arguments
+ /// * `suffix` - Content for the label to the right of it.
+ #[allow(unused)]
+ pub fn new_with_suffix(suffix: &str) -> Self {
+ let view = LinearLayout::horizontal()
+ .child(EditView::new().content("0").full_width())
+ .child(TextView::new(format!(" {suffix}")));
+
Self {
- view: EditView::new().content("0"),
+ view,
max_value: None,
max_content_width: None,
allow_empty: false,
@@ -42,7 +64,7 @@ impl<T: Copy + ToString + FromStr + PartialOrd>
NumericEditView<T> {
pub fn max_content_width(mut self, width: usize) -> Self {
self.max_content_width = Some(width);
- self.view.set_max_content_width(self.max_content_width);
+ self.inner_mut().set_max_content_width(Some(width));
self
}
@@ -50,24 +72,25 @@ impl<T: Copy + ToString + FromStr + PartialOrd>
NumericEditView<T> {
self.allow_empty = value;
if value {
- self.view = EditView::new();
+ *self.inner_mut() = EditView::new();
} else {
- self.view = EditView::new().content("0");
+ *self.inner_mut() = EditView::new().content("0");
}
- self.view.set_max_content_width(self.max_content_width);
+ let max_content_width = self.max_content_width;
+ self.inner_mut().set_max_content_width(max_content_width);
self
}
pub fn get_content(&self) -> Result<T, <T as FromStr>::Err> {
assert!(!self.allow_empty);
- self.view.get_content().parse()
+ self.inner().get_content().parse()
}
pub fn get_content_maybe(&self) -> Option<Result<T, <T as FromStr>::Err>> {
- let content = self.view.get_content();
+ let content = self.inner().get_content();
if !content.is_empty() {
- Some(self.view.get_content().parse())
+ Some(self.inner().get_content().parse())
} else {
None
}
@@ -83,7 +106,7 @@ impl<T: Copy + ToString + FromStr + PartialOrd>
NumericEditView<T> {
if let Ok(val) = self.get_content() {
if result.is_consumed() && val > max {
// Restore the original value, before the insert
- let cb = self.view.set_content((*original).clone());
+ let cb = self.inner_mut().set_content((*original).clone());
return EventResult::with_cb_once(move |siv| {
result.process(siv);
cb(siv);
@@ -94,16 +117,54 @@ impl<T: Copy + ToString + FromStr + PartialOrd>
NumericEditView<T> {
result
}
+
+ /// Provides an immutable reference to the inner [`EditView`].
+ fn inner(&self) -> &EditView {
+ // Safety: Invariant; first child must always exist and be a `EditView`
+ self.view
+ .get_child(0)
+ .unwrap()
+ .downcast_ref::<ResizedView<EditView>>()
+ .unwrap()
+ .get_inner()
+ }
+
+ /// Provides a mutable reference to the inner [`EditView`].
+ fn inner_mut(&mut self) -> &mut EditView {
+ // Safety: Invariant; first child must always exist and be a `EditView`
+ self.view
+ .get_child_mut(0)
+ .unwrap()
+ .downcast_mut::<ResizedView<EditView>>()
+ .unwrap()
+ .get_inner_mut()
+ }
+
+ /// Sets the content of the inner [`EditView`]. This correctly swaps out
the content without
+ /// modifying the [`EditView`] in any way.
+ ///
+ /// Chainable variant.
+ ///
+ /// # Arguments
+ /// * `content` - New, stringified content for the inner [`EditView`].
Must be a valid value
+ /// according to the containet type `T`.
+ fn content_inner(mut self, content: &str) -> Self {
+ let mut inner = EditView::new();
+ std::mem::swap(self.inner_mut(), &mut inner);
+ inner = inner.content(content);
+ std::mem::swap(self.inner_mut(), &mut inner);
+ self
+ }
}
pub type FloatEditView = NumericEditView<f64>;
pub type IntegerEditView = NumericEditView<usize>;
impl ViewWrapper for FloatEditView {
- cursive::wrap_impl!(self.view: EditView);
+ cursive::wrap_impl!(self.view: LinearLayout);
fn wrap_on_event(&mut self, event: Event) -> EventResult {
- let original = self.view.get_content();
+ let original = self.inner_mut().get_content();
let has_decimal_place = original.find('.').is_some();
@@ -114,13 +175,13 @@ impl ViewWrapper for FloatEditView {
};
let decimal_places = self
- .view
+ .inner_mut()
.get_content()
.split_once('.')
.map(|(_, s)| s.len())
.unwrap_or_default();
if decimal_places > 2 {
- let cb = self.view.set_content((*original).clone());
+ let cb = self.inner_mut().set_content((*original).clone());
return EventResult::with_cb_once(move |siv| {
result.process(siv);
cb(siv);
@@ -132,17 +193,17 @@ impl ViewWrapper for FloatEditView {
}
impl FloatEditView {
- pub fn content(mut self, content: f64) -> Self {
- self.view = self.view.content(format!("{:.2}", content));
- self
+ /// Sets the value of the [`FloatEditView`].
+ pub fn content(self, content: f64) -> Self {
+ self.content_inner(&format!("{:.2}", content))
}
}
impl ViewWrapper for IntegerEditView {
- cursive::wrap_impl!(self.view: EditView);
+ cursive::wrap_impl!(self.view: LinearLayout);
fn wrap_on_event(&mut self, event: Event) -> EventResult {
- let original = self.view.get_content();
+ let original = self.inner_mut().get_content();
let result = match event {
// Drop all other characters than numbers; allow dots if not set
to integer-only
@@ -155,9 +216,9 @@ impl ViewWrapper for IntegerEditView {
}
impl IntegerEditView {
- pub fn content(mut self, content: usize) -> Self {
- self.view = self.view.content(content.to_string());
- self
+ /// Sets the value of the [`IntegerEditView`].
+ pub fn content(self, content: usize) -> Self {
+ self.content_inner(&content.to_string())
}
}
--
2.42.0
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