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Update tutorial_3

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Remove extra Rc clones, add missing link.
This commit is contained in:
Alexandre Bury 2017-03-26 20:53:34 -07:00
parent c300e0628d
commit f7b6397588
1 changed files with 4 additions and 4 deletions
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8
doc/tutorial_3.md
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@ -54,7 +54,7 @@ fn add_name(s: &mut Cursive) {
.button("Ok", |s| { .button("Ok", |s| {
let name = let name =
s.call_on_id("name", |view: &mut EditView| { s.call_on_id("name", |view: &mut EditView| {
view.get_content().clone() view.get_content()
}).unwrap(); }).unwrap();
ok(s, &name); ok(s, &name);
}) })
@ -240,7 +240,7 @@ fn add_name(s: &mut Cursive) {
.title("Enter a new name") .title("Enter a new name")
.button("Ok", |s| { .button("Ok", |s| {
let name = s.call_on_id("name", |view: &mut EditView| { let name = s.call_on_id("name", |view: &mut EditView| {
view.get_content().clone() view.get_content()
}).unwrap(); }).unwrap();
}) })
.button("Cancel", |s| s.pop_layer())); .button("Cancel", |s| s.pop_layer()));
@ -280,7 +280,7 @@ fn add_name(s: &mut Cursive) {
.title("Enter a new name") .title("Enter a new name")
.button("Ok", |s| { .button("Ok", |s| {
let name = s.call_on_id("name", |v: &mut EditView| { let name = s.call_on_id("name", |v: &mut EditView| {
v.get_content().clone() v.get_content()
}).unwrap(); }).unwrap();
ok(s, &name); ok(s, &name);
}) })
@ -306,7 +306,7 @@ fn delete_name(s: &mut Cursive) {
We use [`SelectView::selected_id`] and [`SelectView::remove_item`] to remove We use [`SelectView::selected_id`] and [`SelectView::remove_item`] to remove
the item currently selected, nothing too surprising. the item currently selected, nothing too surprising.
But this time, instead of using `call_on_id`, we use `Cursive::find_id`: But this time, instead of using `call_on_id`, we use [`Cursive::find_id`]:
this method returns a handle, through which we can mutate the view. this method returns a handle, through which we can mutate the view.
It uses `Rc` and `RefCell` under the hood to provide mutable access to the It uses `Rc` and `RefCell` under the hood to provide mutable access to the
view without borrowing the `Cursive` root, leaving us free to pop layers. view without borrowing the `Cursive` root, leaving us free to pop layers.