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Code Issues Projects Releases Wiki Activity

View::find_any now takes a closure instead of returning reference

Browse Source 
Also updated Finder::find and find_id.
This commit is contained in:
Alexandre Bury 2017-02-06 18:18:17 -08:00
parent 57c1c1ad61
commit b63762d441
34 changed files with 233 additions and 200 deletions
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2
doc/tutorial_2.md
View File

@ -144,7 +144,7 @@ fn main() {
siv.run();
}
fn show_next(s: &mut Cursive) {
fn show_next(_: &mut Cursive) {
// Empty for now
}
```

50
doc/tutorial_3.md
View File

@ -40,7 +40,9 @@ fn main() {
fn add_name(s: &mut Cursive) {
fn ok(s: &mut Cursive, name: &str) {
s.find_id::<SelectView<String>>("select").unwrap().add_item_str(name);
s.find_id("select", |view: &mut SelectView<String>| {
view.add_item_str(name)
});
s.pop_layer();
}
@ -51,19 +53,25 @@ fn add_name(s: &mut Cursive) {
.title("Enter a new name")
.button("Ok", |s| {
let name =
s.find_id::<EditView>("name").unwrap().get_content().clone();
s.find_id("name", |view: &mut EditView| {
view.get_content().clone()
}).unwrap();
ok(s, &name);
})
.button("Cancel", |s| s.pop_layer()));
}
fn delete_name(s: &mut Cursive) {
match s.find_id::<SelectView<String>>("select").unwrap().selected_id() {
let selection = s.find_id("select", |view: &mut SelectView<String>| {
view.selected_id()
}).unwrap();
match selection {
None => s.add_layer(Dialog::info("No name to remove")),
Some(focus) => {
s.find_id::<SelectView<String>>("select")
.unwrap()
.remove_item(focus)
s.find_id("select", |view: &mut SelectView<String>| {
view.remove_item(focus)
});
}
}
}
@ -224,8 +232,8 @@ Later, you can ask the Cursive root for this ID and get access to the view.
Just what we need!
Like `BoxView`, `IdView` can be used directly with [`IdView::new`], or through
the [`Identifiable`] trait. [`Cursive::find_id`] can then give you a mutable
reference to the view.
the [`Identifiable`] trait. [`Cursive::find_id`] allows you to run a closure
on the view.
Here's what it looks like in action:
@ -236,8 +244,9 @@ fn add_name(s: &mut Cursive) {
.fixed_width(10))
.title("Enter a new name")
.button("Ok", |s| {
let name =
s.find_id::<EditView>("name").unwrap().get_content().clone();
let name = s.find_id("name", |view: &mut EditView| {
view.get_content().clone()
}).unwrap();
})
.button("Cancel", |s| s.pop_layer()));
}
@ -263,7 +272,9 @@ That way, we can update it with a new item:
```rust,ignore
fn add_name(s: &mut Cursive) {
fn ok(s: &mut Cursive, name: &str) {
s.find_id::<SelectView<String>>("select").unwrap().add_item_str(name);
s.find_id("select", |view: &mut SelectView<String>| {
view.add_item_str(name);
});
s.pop_layer();
}
@ -273,8 +284,9 @@ fn add_name(s: &mut Cursive) {
.fixed_width(10))
.title("Enter a new name")
.button("Ok", |s| {
let name =
s.find_id::<EditView>("name").unwrap().get_content().clone();
let name = s.find_id("name", |v: &mut EditView| {
v.get_content().clone()
}).unwrap();
ok(s, &name);
})
.button("Cancel", |s| s.pop_layer()));
@ -286,13 +298,13 @@ complicated:
```rust,ignore
fn delete_name(s: &mut Cursive) {
match s.find_id::<SelectView<String>>("select").unwrap().selected_id() {
match s.find_id("select", |v: &mut SelectView<String>| {
v.selected_id()
}).unwrap() {
None => s.add_layer(Dialog::info("No name to remove")),
Some(focus) => {
s.find_id::<SelectView<String>>("select")
.unwrap()
.remove_item(focus)
}
Some(focus) => s.find_id("select", |v: &mut SelectView<String>| {
v.remove_item(focus)
}),
}
}
```

8
examples/edit.rs
View File

@ -1,8 +1,8 @@
extern crate cursive;
use cursive::Cursive;
use cursive::views::{Dialog, EditView, TextView};
use cursive::traits::*;
use cursive::views::{Dialog, EditView, TextView};
fn main() {
let mut siv = Cursive::new();
@ -18,9 +18,9 @@ fn main() {
.with_id("name")
.fixed_width(20))
.button("Ok", |s| {
let name = s.find_id::<EditView>("name")
.unwrap()
.get_content();
let name =
s.find_id("name", |view: &mut EditView| view.get_content())
.unwrap();
show_popup(s, &name);
}));

21
examples/list_view.rs
View File

@ -1,9 +1,9 @@
extern crate cursive;
use cursive::Cursive;
use cursive::traits::*;
use cursive::views::{Checkbox, Dialog, EditView, LinearLayout, ListView,
SelectView, TextView};
use cursive::traits::*;
fn main() {
let mut siv = Cursive::new();
@ -25,12 +25,13 @@ fn main() {
.with_id("email2")
.fixed_width(10)))
.child("Receive spam?",
Checkbox::new().on_change(|s, checked| {
for name in &["email1", "email2"] {
let view: &mut EditView = s.find_id(name).unwrap();
view.set_enabled(checked);
}
}))
Checkbox::new()
.on_change(|s, checked| for name in &["email1",
"email2"] {
s.find_id(name, |view: &mut EditView| {
view.set_enabled(checked)
});
}))
.delimiter()
.child("Age",
SelectView::new()
@ -39,10 +40,8 @@ fn main() {
.item_str("19-30")
.item_str("31-40")
.item_str("41+"))
.with(|list| {
for i in 0..50 {
list.add_child(&format!("Item {}", i), EditView::new());
}
.with(|list| for i in 0..50 {
list.add_child(&format!("Item {}", i), EditView::new());
})));
siv.run();

7
examples/mutation.rs
View File

@ -13,9 +13,10 @@ fn show_popup(siv: &mut Cursive) {
Dialog::around(TextView::new("Tak!"))
.button("Change", |s| {
// Look for a view tagged "text". We _know_ it's there, so unwrap it.
let view = s.find_id::<TextView>("text").unwrap();
let content: String = view.get_content().chars().rev().collect();
view.set_content(content);
s.find_id("text", |view: &mut TextView| {
let content: String = view.get_content().chars().rev().collect();
view.set_content(content);
});
})
.dismiss_button("Ok"));

4
examples/slider.rs
View File

@ -1,8 +1,8 @@
extern crate cursive;
use cursive::Cursive;
use cursive::views::{Dialog, SliderView};
use cursive::traits::*;
use cursive::views::{Dialog, SliderView};
fn main() {
let mut siv = Cursive::new();
@ -14,7 +14,7 @@ fn main() {
.value(7)
.on_change(|s, v| {
let title = format!("[ {} ]", v);
s.find_id::<Dialog>("dialog").unwrap().set_title(title);
s.find_id("dialog", |view: &mut Dialog| view.set_title(title));
})
.on_enter(|s, v| {
s.pop_layer();

6
src/backend/blt.rs
View File

@ -1,12 +1,12 @@
extern crate bear_lib_terminal;
use ::backend;
use ::event::{Event, Key};
use self::bear_lib_terminal::Color as BltColor;
use self::bear_lib_terminal::geometry::Size;
use self::bear_lib_terminal::terminal::{self, Event as BltEvent, KeyCode};
use backend;
use event::{Event, Key};
use std::collections::BTreeMap;
use ::theme::{BaseColor, Color, ColorStyle, Effect};
use theme::{BaseColor, Color, ColorStyle, Effect};
pub struct Concrete {
colours: BTreeMap<i16, (BltColor, BltColor)>,

4
src/backend/curses/n.rs
View File

@ -1,9 +1,9 @@
extern crate ncurses;
use backend;
use event::{Event, Key};
use self::super::find_closest;
use backend;
use event::{Event, Key};
use theme::{Color, ColorStyle, Effect};
use utf8;

14
src/backend/curses/pan.rs
View File

@ -1,10 +1,10 @@
extern crate pancurses;
use backend;
use event::{Event, Key};
use self::super::find_closest;
use backend;
use event::{Event, Key};
use std::cell::Cell;
use theme::{Color, ColorStyle, Effect};
use utf8;
@ -23,7 +23,8 @@ impl backend::Backend for Concrete {
pancurses::cbreak();
pancurses::start_color();
pancurses::curs_set(0);
window.bkgd(pancurses::COLOR_PAIR(ColorStyle::Background.id() as pancurses::chtype));
window.bkgd(pancurses::COLOR_PAIR(ColorStyle::Background.id() as
pancurses::chtype));
Concrete {
window: window,
@ -66,7 +67,8 @@ impl backend::Backend for Concrete {
self.current_style.set(current_style);
// self.window.attroff(style);
self.window.attron(pancurses::COLOR_PAIR(current_style.id() as pancurses::chtype));
self.window.attron(pancurses::COLOR_PAIR(current_style.id() as
pancurses::chtype));
}
fn with_effect<F: FnOnce()>(&self, effect: Effect, f: F) {
@ -101,7 +103,9 @@ impl backend::Backend for Concrete {
// TODO: wait for a very short delay. If more keys are
// pipelined, it may be an escape sequence.
pancurses::Input::Character('\u{7f}') |
pancurses::Input::Character('\u{8}') => Event::Key(Key::Backspace),
pancurses::Input::Character('\u{8}') => {
Event::Key(Key::Backspace)
}
pancurses::Input::Character('\u{9}') => Event::Key(Key::Tab),
pancurses::Input::Character('\u{1b}') => Event::Key(Key::Esc),
pancurses::Input::Character(c) if 32 <= (c as u32) &&

4
src/backend/mod.rs
View File

@ -8,12 +8,12 @@ mod blt;
#[cfg(any(feature = "ncurses", feature = "pancurses"))]
mod curses;
#[cfg(feature = "bear-lib-terminal")]
pub use self::blt::*;
#[cfg(any(feature = "ncurses", feature = "pancurses"))]
pub use self::curses::*;
#[cfg(feature = "termion")]
pub use self::termion::*;
#[cfg(feature = "bear-lib-terminal")]
pub use self::blt::*;
pub trait Backend {
fn init() -> Self;

8
src/backend/termion.rs
View File

@ -2,14 +2,14 @@ extern crate termion;
extern crate chan_signal;
use ::backend;
use chan;
use ::event::{Event, Key};
use self::termion::color as tcolor;
use self::termion::event::Key as TKey;
use self::termion::input::TermRead;
use self::termion::raw::IntoRawMode;
use self::termion::style as tstyle;
use backend;
use chan;
use event::{Event, Key};
use std::cell::Cell;
use std::collections::BTreeMap;
use std::fmt;
@ -17,7 +17,7 @@ use std::io::Write;
use std::thread;
use std::time;
use ::theme;
use theme;
pub struct Concrete {
terminal: termion::raw::RawTerminal<::std::io::Stdout>,

2
src/direction.rs
View File

@ -15,8 +15,8 @@
//! * Relative direction: front or back.
//! Its actual direction depends on the orientation.
use vec::Vec2;
use XY;
use vec::Vec2;
/// Describes a vertical or horizontal orientation for a view.
#[derive(Clone,Copy,Debug,PartialEq)]

34
src/lib.rs
View File

@ -68,6 +68,7 @@ extern crate num;
#[macro_use]
extern crate chan;
macro_rules! println_stderr(
($($arg:tt)*) => { {
use ::std::io::Write;
@ -364,8 +365,11 @@ impl Cursive {
/// Tries to find the view pointed to by the given selector.
///
/// Runs a closure on the view once it's found, and return the
/// result.
///
/// If the view is not found, or if it is not of the asked type,
/// it returns None.
/// returns None.
///
/// # Examples
///
@ -380,15 +384,18 @@ impl Cursive {
/// .with_id("text"));
///
/// siv.add_global_callback('p', |s| {
/// s.find::<views::TextView>(&view::Selector::Id("text"))
/// .unwrap()
/// .set_content("Text #2");
/// s.find(&view::Selector::Id("text"), |view: &mut views::TextView| {
/// view.set_content("Text #2");
/// });
/// });
/// # }
/// ```
pub fn find<V: View + Any>(&mut self, sel: &view::Selector)
-> Option<&mut V> {
self.screen_mut().find(sel)
pub fn find<V, F, R>(&mut self, sel: &view::Selector, callback: F)
-> Option<R>
where V: View + Any,
F: FnOnce(&mut V) -> R
{
self.screen_mut().find(sel, callback)
}
/// Convenient method to use `find` with a `view::Selector::Id`.
@ -406,14 +413,17 @@ impl Cursive {
/// .with_id("text"));
///
/// siv.add_global_callback('p', |s| {
/// s.find_id::<views::TextView>("text")
/// .unwrap()
/// .set_content("Text #2");
/// s.find_id("text", |view: &mut views::TextView| {
/// view.set_content("Text #2");
/// });
/// });
/// # }
/// ```
pub fn find_id<V: View + Any>(&mut self, id: &str) -> Option<&mut V> {
self.find(&view::Selector::Id(id))
pub fn find_id<V, F, R>(&mut self, id: &str, callback: F) -> Option<R>
where V: View + Any,
F: FnOnce(&mut V) -> R
{
self.find(&view::Selector::Id(id), callback)
}
/// Adds a global callback.

9
src/menu.rs
View File

@ -165,13 +165,13 @@ impl MenuTree {
/// Returns `None` if the given title was not found,
/// or if it wasn't a subtree.
pub fn find_subtree(&mut self, title: &str) -> Option<&mut MenuTree> {
self.find_item(title).and_then(|item| {
if let MenuItem::Subtree(_, ref mut tree) = *item {
self.find_item(title)
.and_then(|item| if let MenuItem::Subtree(_, ref mut tree) =
*item {
Some(Rc::make_mut(tree))
} else {
None
}
})
})
}
/// Removes the item at the given position.
@ -191,5 +191,4 @@ impl MenuTree {
pub fn is_empty(&self) -> bool {
self.children.is_empty()
}
}

4
src/printer.rs
View File

@ -34,7 +34,9 @@ impl<'a> Printer<'a> {
///
/// But nobody needs to know that.
#[doc(hidden)]
pub fn new<T: Into<Vec2>>(size: T, theme: Theme, backend: &'a backend::Concrete) -> Self {
pub fn new<T: Into<Vec2>>(size: T, theme: Theme,
backend: &'a backend::Concrete)
-> Self {
Printer {
offset: Vec2::zero(),
size: size.into(),

2
src/theme.rs
View File

@ -129,7 +129,7 @@ pub enum Effect {
/// No effect
Simple,
/// Reverses foreground and background colors
Reverse,
Reverse,
// TODO: bold, italic, underline
}

7
src/utils/mod.rs
View File

@ -14,7 +14,7 @@ pub struct Prefix {
/// The length (in bytes) of the string.
pub length: usize,
/// The unicode-width of the string.
pub width: usize
pub width: usize,
}
/// Computes the length (number of bytes) and width of a prefix that fits in the given `width`.
@ -42,7 +42,8 @@ pub struct Prefix {
/// prefix(my_text.graphemes(true), 5, "");
/// # }
/// ```
pub fn prefix<'a, I>(iter: I, available_width: usize, delimiter: &str) -> Prefix
pub fn prefix<'a, I>(iter: I, available_width: usize, delimiter: &str)
-> Prefix
where I: Iterator<Item = &'a str>
{
let delimiter_width = delimiter.width();
@ -70,7 +71,7 @@ pub fn prefix<'a, I>(iter: I, available_width: usize, delimiter: &str) -> Prefix
Prefix {
length: length,
width: current_width
width: current_width,
}
}

8
src/vec.rs
View File

@ -95,7 +95,7 @@ impl<T: Zero + Clone> XY<T> {
}
}
impl <T: Into<XY<usize>>> From<T> for XY<isize> {
impl<T: Into<XY<usize>>> From<T> for XY<isize> {
fn from(t: T) -> Self {
let other = t.into();
Self::new(other.x as isize, other.y as isize)
@ -115,7 +115,7 @@ impl From<(u32, u32)> for XY<usize> {
}
impl<T: Add<Output=T>, O: Into<XY<T>>> Add<O> for XY<T> {
impl<T: Add<Output = T>, O: Into<XY<T>>> Add<O> for XY<T> {
type Output = Self;
fn add(self, other: O) -> Self {
@ -123,7 +123,7 @@ impl<T: Add<Output=T>, O: Into<XY<T>>> Add<O> for XY<T> {
}
}
impl<T: Sub<Output=T>, O: Into<XY<T>>> Sub<O> for XY<T> {
impl<T: Sub<Output = T>, O: Into<XY<T>>> Sub<O> for XY<T> {
type Output = Self;
fn sub(self, other: O) -> Self {
@ -131,7 +131,7 @@ impl<T: Sub<Output=T>, O: Into<XY<T>>> Sub<O> for XY<T> {
}
}
impl <T: Clone + Div<Output=T>> Div<T> for XY<T> {
impl<T: Clone + Div<Output = T>> Div<T> for XY<T> {
type Output = Self;
fn div(self, other: T) -> Self {

44
src/view/mod.rs
View File

@ -50,10 +50,6 @@ mod identifiable;
mod boxable;
use Printer;
use direction::Direction;
use event::{Event, EventResult};
pub use self::boxable::Boxable;
pub use self::identifiable::Identifiable;
@ -65,6 +61,10 @@ pub use self::size_cache::SizeCache;
pub use self::size_constraint::SizeConstraint;
pub use self::view_path::ViewPath;
pub use self::view_wrapper::ViewWrapper;
use Printer;
use direction::Direction;
use event::{Event, EventResult};
use std::any::Any;
use vec::Vec2;
@ -122,8 +122,9 @@ pub trait View {
/// Returns None if the path doesn't lead to a view.
///
/// Default implementation always return `None`.
fn find_any(&mut self, &Selector) -> Option<&mut Any> {
None
fn find_any<'a>(&mut self, _: &Selector,
_: Box<FnMut(&mut Any) + 'a>) {
// TODO: FnMut -> FnOnce once it works
}
/// This view is offered focus. Will it take it?
@ -150,17 +151,38 @@ pub trait Finder {
///
/// If the view is not found, or if it is not of the asked type,
/// it returns None.
fn find<V: View + Any>(&mut self, sel: &Selector) -> Option<&mut V>;
fn find<V, F, R>(&mut self, sel: &Selector, callback: F) -> Option<R>
where V: View + Any,
F: FnOnce(&mut V) -> R;
/// Convenient method to use `find` with a `view::Selector::Id`.
fn find_id<V: View + Any>(&mut self, id: &str) -> Option<&mut V> {
self.find(&Selector::Id(id))
fn find_id<V, F, R>(&mut self, id: &str, callback: F) -> Option<R>
where V: View + Any,
F: FnOnce(&mut V) -> R
{
self.find(&Selector::Id(id), callback)
}
}
impl<T: View> Finder for T {
fn find<V: View + Any>(&mut self, sel: &Selector) -> Option<&mut V> {
self.find_any(sel).and_then(|b| b.downcast_mut::<V>())
fn find<V, F, R>(&mut self, sel: &Selector, callback: F) -> Option<R>
where V: View + Any,
F: FnOnce(&mut V) -> R
{
let mut result = None;
{
let result_ref = &mut result;
let mut callback = Some(callback);
let callback = |v: &mut Any| if let Some(callback) =
callback.take() {
if let Some(v) = v.downcast_mut::<V>() {
*result_ref = Some(callback(v));
}
};
self.find_any(sel, Box::new(callback));
}
result
}
}

43
src/view/view_wrapper.rs
View File

@ -11,8 +11,8 @@ use view::{Selector, View};
/// Default implementation forwards all calls to the child view.
/// Overrides some methods as desired.
///
/// You can use the [`wrap_impl!`] macro to define `get_view` and
/// `get_view_mut` for you.
/// You can use the [`wrap_impl!`] macro to define `with_view` and
/// `with_view_mut` for you.
///
/// [`wrap_impl!`]: ../macro.wrap_impl.html
pub trait ViewWrapper {
@ -20,44 +20,46 @@ pub trait ViewWrapper {
type V: View;
/// Get an immutable reference to the wrapped view.
fn get_view(&self) -> &Self::V;
fn with_view<F, R>(&self, f: F) -> R where F: FnOnce(&Self::V) -> R;
/// Get a mutable reference to the wrapped view.
fn get_view_mut(&mut self) -> &mut Self::V;
fn with_view_mut<F, R>(&mut self, f: F) -> R
where F: FnOnce(&mut Self::V) -> R;
/// Wraps the `draw` method.
fn wrap_draw(&self, printer: &Printer) {
self.get_view().draw(printer);
self.with_view(|v| v.draw(printer));
}
/// Wraps the `required_size` method.
fn wrap_required_size(&mut self, req: Vec2) -> Vec2 {
self.get_view_mut().required_size(req)
self.with_view_mut(|v| v.required_size(req))
}
/// Wraps the `on_event` method.
fn wrap_on_event(&mut self, ch: Event) -> EventResult {
self.get_view_mut().on_event(ch)
self.with_view_mut(|v| v.on_event(ch))
}
/// Wraps the `layout` method.
fn wrap_layout(&mut self, size: Vec2) {
self.get_view_mut().layout(size);
self.with_view_mut(|v| v.layout(size));
}
/// Wraps the `take_focus` method.
fn wrap_take_focus(&mut self, source: Direction) -> bool {
self.get_view_mut().take_focus(source)
self.with_view_mut(|v| v.take_focus(source))
}
/// Wraps the `find` method.
fn wrap_find_any(&mut self, selector: &Selector) -> Option<&mut Any> {
self.get_view_mut().find_any(selector)
fn wrap_find_any<'a>(&mut self, selector: &Selector,
callback: Box<FnMut(&mut Any) + 'a>) {
self.with_view_mut(|v| v.find_any(selector, callback));
}
/// Wraps the `needs_relayout` method.
fn wrap_needs_relayout(&self) -> bool {
self.get_view().needs_relayout()
self.with_view(|v| v.needs_relayout())
}
}
@ -82,8 +84,9 @@ impl<T: ViewWrapper> View for T {
self.wrap_take_focus(source)
}
fn find_any(&mut self, selector: &Selector) -> Option<&mut Any> {
self.wrap_find_any(selector)
fn find_any<'a>(&mut self, selector: &Selector,
callback: Box<FnMut(&mut Any) + 'a>) {
self.wrap_find_any(selector, callback)
}
fn needs_relayout(&self) -> bool {
@ -93,7 +96,7 @@ impl<T: ViewWrapper> View for T {
/// Convenient macro to implement the [`ViewWrapper`] trait.
///
/// It defines the `get_view` and `get_view_mut` implementations,
/// It defines the `with_view` and `with_view_mut` implementations,
/// as well as the `type V` declaration.
///
/// [`ViewWrapper`]: view/trait.ViewWrapper.html
@ -117,12 +120,14 @@ macro_rules! wrap_impl {
(self.$v:ident: $t:ty) => {
type V = $t;
fn get_view(&self) -> &Self::V {
&self.$v
fn with_view<F, R>(&self, f: F) -> R where F: FnOnce(&Self::V) -> R {
f(&self.$v)
}
fn get_view_mut(&mut self) -> &mut Self::V {
&mut self.$v
fn with_view_mut<F, R>(&mut self, f: F) -> R
where F: FnOnce(&mut Self::V) -> R
{
f(&mut self.$v)
}
};
}

8
src/views/checkbox.rs
View File

@ -61,9 +61,7 @@ impl Checkbox {
///
/// Chainable variant.
pub fn checked(self) -> Self {
self.with(|s| {
s.check();
})
self.with(|s| { s.check(); })
}
/// Returns `true` if the checkbox is checked.
@ -80,9 +78,7 @@ impl Checkbox {
///
/// Chainable variant.
pub fn unchecked(self) -> Self {
self.with(|s| {
s.uncheck();
})
self.with(|s| { s.uncheck(); })
}
/// Sets the checkbox state.

5
src/views/dialog.rs
View File

@ -399,7 +399,8 @@ impl View for Dialog {
}
}
fn find_any(&mut self, selector: &Selector) -> Option<&mut Any> {
self.content.find_any(selector)
fn find_any<'a>(&mut self, selector: &Selector,
callback: Box<FnMut(&mut Any) + 'a>) {
self.content.find_any(selector, callback);
}
}

24
src/views/edit_view.rs
View File

@ -40,9 +40,8 @@ use view::View;
/// .with_id("name")
/// .fixed_width(20))
/// .button("Ok", |s| {
/// let name = s.find_id::<EditView>("name")
/// .unwrap()
/// .get_content();
/// let name = s.find_id("name", |view: &mut EditView| view.get_content())
/// .unwrap();
/// show_popup(s, &name);
/// }));
///
@ -239,9 +238,10 @@ impl EditView {
// Look at the content before the cursor (we will print its tail).
// From the end, count the length until we reach `available`.
// Then sum the byte lengths.
let suffix_length =
simple_suffix(&self.content[self.offset..self.cursor],
available).length;
let suffix_length = simple_suffix(&self.content[self.offset..
self.cursor],
available)
.length;
self.offset = self.cursor - suffix_length;
// Make sure the cursor is in view
assert!(self.cursor >= self.offset);
@ -250,8 +250,8 @@ impl EditView {
// If we have too much space
if self.content[self.offset..].width() < self.last_length {
let suffix_length = simple_suffix(&self.content,
self.last_length - 1).length;
let suffix_length =
simple_suffix(&self.content, self.last_length - 1).length;
self.offset = self.content.len() - suffix_length;
}
}
@ -392,9 +392,7 @@ impl View for EditView {
Event::Key(Key::Enter) if self.on_submit.is_some() => {
let cb = self.on_submit.clone().unwrap();
let content = self.content.clone();
return EventResult::with_cb(move |s| {
cb(s, &content);
});
return EventResult::with_cb(move |s| { cb(s, &content); });
}
_ => return EventResult::Ignored,
}
@ -407,9 +405,7 @@ impl View for EditView {
let content = self.content.clone();
let cursor = self.cursor;
Callback::from_fn(move |s| {
cb(s, &content, cursor);
})
Callback::from_fn(move |s| { cb(s, &content, cursor); })
});
EventResult::Consumed(cb)
}

7
src/views/id_view.rs
View File

@ -21,10 +21,11 @@ impl<T: View> IdView<T> {
impl<T: View + Any> ViewWrapper for IdView<T> {
wrap_impl!(self.view: T);
fn wrap_find_any(&mut self, selector: &Selector) -> Option<&mut Any> {
fn wrap_find_any<'a>(&mut self, selector: &Selector,
mut callback: Box<FnMut(&mut Any) + 'a>) {
match selector {
&Selector::Id(id) if id == self.id => Some(&mut self.view),
s => self.view.find_any(s),
&Selector::Id(id) if id == self.id => callback(&mut self.view),
s => self.view.find_any(s, callback),
}
}
}

6
src/views/layer.rs
View File

@ -10,12 +10,10 @@ pub struct Layer<T: View> {
view: T,
}
impl <T: View> Layer<T> {
impl<T: View> Layer<T> {
/// Wraps the given view.
pub fn new(view: T) -> Self {
Layer {
view: view,
}
Layer { view: view }
}
}

10
src/views/linear_layout.rs
View File

@ -375,10 +375,10 @@ impl View for LinearLayout {
}
}
fn find_any(&mut self, selector: &Selector) -> Option<&mut Any> {
self.children
.iter_mut()
.filter_map(|c| c.view.find_any(selector))
.next()
fn find_any<'a>(&mut self, selector: &Selector,
mut callback: Box<FnMut(&mut Any) + 'a>) {
for child in &mut self.children {
child.view.find_any(selector, Box::new(|any| callback(any)));
}
}
}

43
src/views/list_view.rs
View File

@ -132,16 +132,16 @@ impl ListView {
fn move_focus(&mut self, n: usize, source: direction::Direction)
-> EventResult {
let i = if let Some(i) =
source.relative(direction::Orientation::Vertical)
.and_then(|rel| {
// The iterator starts at the focused element.
// We don't want that one.
self.iter_mut(true, rel)
.skip(1)
.filter_map(|p| try_focus(p, source))
.take(n)
.last()
}) {
source.relative(direction::Orientation::Vertical)
.and_then(|rel| {
// The iterator starts at the focused element.
// We don't want that one.
self.iter_mut(true, rel)
.skip(1)
.filter_map(|p| try_focus(p, source))
.take(n)
.last()
}) {
i
} else {
return EventResult::Ignored;
@ -185,14 +185,12 @@ impl View for ListView {
.max()
.unwrap_or(0) + 1;
self.scrollbase.draw(printer, |printer, i| {
match self.children[i] {
Child::Row(ref label, ref view) => {
printer.print((0, 0), label);
view.draw(&printer.offset((offset, 0), i == self.focus));
}
Child::Delimiter => (),
self.scrollbase.draw(printer, |printer, i| match self.children[i] {
Child::Row(ref label, ref view) => {
printer.print((0, 0), label);
view.draw(&printer.offset((offset, 0), i == self.focus));
}
Child::Delimiter => (),
});
}
@ -298,11 +296,12 @@ impl View for ListView {
true
}
fn find_any(&mut self, selector: &Selector) -> Option<&mut Any> {
self.children
fn find_any<'a>(&mut self, selector: &Selector,
mut callback: Box<FnMut(&mut Any) + 'a>) {
for view in self.children
.iter_mut()
.filter_map(Child::view)
.filter_map(|v| v.find_any(selector))
.next()
.filter_map(Child::view) {
view.find_any(selector, Box::new(|any| callback(any)));
}
}
}

10
src/views/menu_popup.rs
View File

@ -228,12 +228,9 @@ impl View for MenuPopup {
Event::Key(Key::PageDown) => self.scroll_down(5, false),
Event::Key(Key::Home) => self.focus = 0,
Event::Key(Key::End) => {
self.focus = self.menu.children.len() - 1
}
Event::Key(Key::End) => self.focus = self.menu.children.len() - 1,
Event::Key(Key::Right) if self.menu.children
[self.focus]
Event::Key(Key::Right) if self.menu.children[self.focus]
.is_subtree() => {
return match self.menu.children[self.focus] {
MenuItem::Subtree(_, ref tree) => {
@ -243,8 +240,7 @@ impl View for MenuPopup {
};
}
Event::Key(Key::Enter) if !self.menu.children
[self.focus]
Event::Key(Key::Enter) if !self.menu.children[self.focus]
.is_delimiter() => {
return match self.menu.children[self.focus] {
MenuItem::Leaf(_, ref cb) => {

2
src/views/menubar.rs
View File

@ -83,7 +83,7 @@ impl Menubar {
/// Insert a new item at the given position.
pub fn insert_subtree(&mut self, i: usize, title: &str, menu: MenuTree)
-> &mut Self {
-> &mut Self {
self.menus.insert(i, (title.to_string(), Rc::new(menu)));
self
}

4
src/views/progress_bar.rs
View File

@ -118,9 +118,7 @@ impl ProgressBar {
pub fn start<F: FnOnce(Counter) + Send + 'static>(&mut self, f: F) {
let counter: Counter = self.value.clone();
thread::spawn(move || {
f(counter);
});
thread::spawn(move || { f(counter); });
}
/// Starts a function in a separate thread, and monitor the progress.

12
src/views/slider_view.rs
View File

@ -55,9 +55,7 @@ impl SliderView {
///
/// Chainable variant.
pub fn value(self, value: usize) -> Self {
self.with(|s| {
s.set_value(value);
})
self.with(|s| { s.set_value(value); })
}
/// Sets a callback to be called when the slider is moved.
@ -79,9 +77,7 @@ impl SliderView {
fn get_change_result(&self) -> EventResult {
EventResult::Consumed(self.on_change.clone().map(|cb| {
let value = self.value;
Callback::from_fn(move |s| {
cb(s, value);
})
Callback::from_fn(move |s| { cb(s, value); })
}))
}
@ -148,9 +144,7 @@ impl View for SliderView {
Event::Key(Key::Enter) if self.on_enter.is_some() => {
let value = self.value;
let cb = self.on_enter.clone().unwrap();
EventResult::with_cb(move |s| {
cb(s, value);
})
EventResult::with_cb(move |s| { cb(s, value); })
}
_ => EventResult::Ignored,
}

10
src/views/stack_view.rs
View File

@ -180,10 +180,10 @@ impl View for StackView {
}
}
fn find_any(&mut self, selector: &Selector) -> Option<&mut Any> {
self.layers
.iter_mut()
.filter_map(|l| l.view.find_any(selector))
.next()
fn find_any<'a>(&mut self, selector: &Selector,
mut callback: Box<FnMut(&mut Any) + 'a>) {
for layer in &mut self.layers {
layer.view.find_any(selector, Box::new(|any| callback(any)));
}
}
}

9
src/views/text_area.rs
View File

@ -375,11 +375,10 @@ impl View for TextArea {
} else {
printer.size.x
};
printer.with_effect(effect, |printer| {
for y in 0..printer.size.y {
printer.print_hline((0, y), w, " ");
}
});
printer.with_effect(effect,
|printer| for y in 0..printer.size.y {
printer.print_hline((0, y), w, " ");
});
// println_stderr!("Content: `{}`", &self.content);
self.scrollbase.draw(printer, |printer, i| {

2
src/xy.rs
View File

@ -56,7 +56,7 @@ impl<T> XY<T> {
}
}
impl <T: Clone> XY<T> {
impl<T: Clone> XY<T> {
/// Returns a new `XY` with the axis `o` set to `value`.
pub fn with_axis(&self, o: Orientation, value: T) -> Self {
let mut new = self.clone();