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Enable and disable nav buttons based on pane's navigation stack

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Also, make the `NavHistory` type private to the `workspace` crate.
Expose only the `ItemNavHistory` type, via a method on Pane called
`nav_history_for_item`.
This commit is contained in:
Max Brunsfeld 2022-07-06 15:43:42 -07:00
parent 7e5cf6669f
commit a378ec49ec
6 changed files with 163 additions and 100 deletions
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47
crates/editor/src/editor.rs
View file

@ -4065,13 +4065,16 @@ impl Editor {
}
}
nav_history.push(Some(NavigationData {
nav_history.push(
Some(NavigationData {
cursor_anchor: position,
cursor_position: point,
scroll_position: self.scroll_position,
scroll_top_anchor: self.scroll_top_anchor.clone(),
scroll_top_row,
}));
}),
cx,
);
}
}
@ -4669,7 +4672,7 @@ impl Editor {
definitions: Vec<LocationLink>,
cx: &mut ViewContext<Workspace>,
) {
let nav_history = workspace.active_pane().read(cx).nav_history().clone();
let pane = workspace.active_pane().clone();
for definition in definitions {
let range = definition
.target
@ -4681,13 +4684,13 @@ impl Editor {
// When selecting a definition in a different buffer, disable the nav history
// to avoid creating a history entry at the previous cursor location.
if editor_handle != target_editor_handle {
nav_history.borrow_mut().disable();
pane.update(cx, |pane, _| pane.disable_history());
}
target_editor.change_selections(Some(Autoscroll::Center), cx, |s| {
s.select_ranges([range]);
});
nav_history.borrow_mut().enable();
pane.update(cx, |pane, _| pane.enable_history());
});
}
}
@ -5641,8 +5644,8 @@ impl Editor {
editor_handle.update(cx, |editor, cx| {
editor.push_to_nav_history(editor.selections.newest_anchor().head(), None, cx);
});
let nav_history = workspace.active_pane().read(cx).nav_history().clone();
nav_history.borrow_mut().disable();
let pane = workspace.active_pane().clone();
pane.update(cx, |pane, _| pane.disable_history());
// We defer the pane interaction because we ourselves are a workspace item
// and activating a new item causes the pane to call a method on us reentrantly,
@ -5657,7 +5660,7 @@ impl Editor {
});
}
nav_history.borrow_mut().enable();
pane.update(cx, |pane, _| pane.enable_history());
});
}
@ -6241,7 +6244,7 @@ mod tests {
assert_set_eq,
test::{marked_text_by, marked_text_ranges, marked_text_ranges_by, sample_text},
};
use workspace::{FollowableItem, ItemHandle};
use workspace::{FollowableItem, ItemHandle, NavigationEntry, Pane};
#[gpui::test]
fn test_edit_events(cx: &mut MutableAppContext) {
@ -6589,12 +6592,20 @@ mod tests {
fn test_navigation_history(cx: &mut gpui::MutableAppContext) {
cx.set_global(Settings::test(cx));
use workspace::Item;
let nav_history = Rc::new(RefCell::new(workspace::NavHistory::default()));
let pane = cx.add_view(Default::default(), |cx| Pane::new(cx));
let buffer = MultiBuffer::build_simple(&sample_text(300, 5, 'a'), cx);
cx.add_window(Default::default(), |cx| {
let mut editor = build_editor(buffer.clone(), cx);
editor.nav_history = Some(ItemNavHistory::new(nav_history.clone(), &cx.handle()));
let handle = cx.handle();
editor.set_nav_history(Some(pane.read(cx).nav_history_for_item(&handle)));
fn pop_history(
editor: &mut Editor,
cx: &mut MutableAppContext,
) -> Option<NavigationEntry> {
editor.nav_history.as_mut().unwrap().pop_backward(cx)
}
// Move the cursor a small distance.
// Nothing is added to the navigation history.
@ -6604,21 +6615,21 @@ mod tests {
editor.change_selections(None, cx, |s| {
s.select_display_ranges([DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0)])
});
assert!(nav_history.borrow_mut().pop_backward().is_none());
assert!(pop_history(&mut editor, cx).is_none());
// Move the cursor a large distance.
// The history can jump back to the previous position.
editor.change_selections(None, cx, |s| {
s.select_display_ranges([DisplayPoint::new(13, 0)..DisplayPoint::new(13, 3)])
});
let nav_entry = nav_history.borrow_mut().pop_backward().unwrap();
let nav_entry = pop_history(&mut editor, cx).unwrap();
editor.navigate(nav_entry.data.unwrap(), cx);
assert_eq!(nav_entry.item.id(), cx.view_id());
assert_eq!(
editor.selections.display_ranges(cx),
&[DisplayPoint::new(3, 0)..DisplayPoint::new(3, 0)]
);
assert!(nav_history.borrow_mut().pop_backward().is_none());
assert!(pop_history(&mut editor, cx).is_none());
// Move the cursor a small distance via the mouse.
// Nothing is added to the navigation history.
@ -6628,7 +6639,7 @@ mod tests {
editor.selections.display_ranges(cx),
&[DisplayPoint::new(5, 0)..DisplayPoint::new(5, 0)]
);
assert!(nav_history.borrow_mut().pop_backward().is_none());
assert!(pop_history(&mut editor, cx).is_none());
// Move the cursor a large distance via the mouse.
// The history can jump back to the previous position.
@ -6638,14 +6649,14 @@ mod tests {
editor.selections.display_ranges(cx),
&[DisplayPoint::new(15, 0)..DisplayPoint::new(15, 0)]
);
let nav_entry = nav_history.borrow_mut().pop_backward().unwrap();
let nav_entry = pop_history(&mut editor, cx).unwrap();
editor.navigate(nav_entry.data.unwrap(), cx);
assert_eq!(nav_entry.item.id(), cx.view_id());
assert_eq!(
editor.selections.display_ranges(cx),
&[DisplayPoint::new(5, 0)..DisplayPoint::new(5, 0)]
);
assert!(nav_history.borrow_mut().pop_backward().is_none());
assert!(pop_history(&mut editor, cx).is_none());
// Set scroll position to check later
editor.set_scroll_position(Vector2F::new(5.5, 5.5), cx);
@ -6658,7 +6669,7 @@ mod tests {
assert_ne!(editor.scroll_position, original_scroll_position);
assert_ne!(editor.scroll_top_anchor, original_scroll_top_anchor);
let nav_entry = nav_history.borrow_mut().pop_backward().unwrap();
let nav_entry = pop_history(&mut editor, cx).unwrap();
editor.navigate(nav_entry.data.unwrap(), cx);
assert_eq!(editor.scroll_position, original_scroll_position);
assert_eq!(editor.scroll_top_anchor, original_scroll_top_anchor);

21
crates/theme/src/theme.rs
View file

@ -510,27 +510,22 @@ pub struct Interactive<T> {
pub default: T,
pub hover: Option<T>,
pub active: Option<T>,
pub active_hover: Option<T>,
pub disabled: Option<T>,
}
impl<T> Interactive<T> {
pub fn style_for(&self, state: MouseState, active: bool) -> &T {
if active {
if state.hovered {
self.active_hover
.as_ref()
.or(self.active.as_ref())
.unwrap_or(&self.default)
} else {
self.active.as_ref().unwrap_or(&self.default)
}
} else {
if state.hovered {
} else if state.hovered {
self.hover.as_ref().unwrap_or(&self.default)
} else {
&self.default
}
}
pub fn disabled_style(&self) -> &T {
self.disabled.as_ref().unwrap_or(&self.default)
}
}
@ -545,7 +540,7 @@ impl<'de, T: DeserializeOwned> Deserialize<'de> for Interactive<T> {
default: Value,
hover: Option<Value>,
active: Option<Value>,
active_hover: Option<Value>,
disabled: Option<Value>,
}
let json = Helper::deserialize(deserializer)?;
@ -571,14 +566,14 @@ impl<'de, T: DeserializeOwned> Deserialize<'de> for Interactive<T> {
let hover = deserialize_state(json.hover)?;
let active = deserialize_state(json.active)?;
let active_hover = deserialize_state(json.active_hover)?;
let disabled = deserialize_state(json.disabled)?;
let default = serde_json::from_value(json.default).map_err(serde::de::Error::custom)?;
Ok(Interactive {
default,
hover,
active,
active_hover,
disabled,
})
}
}

138
crates/workspace/src/pane.rs
View file

@ -136,13 +136,13 @@ pub struct ItemNavHistory {
item: Rc<dyn WeakItemHandle>,
}
#[derive(Default)]
pub struct NavHistory {
struct NavHistory {
mode: NavigationMode,
backward_stack: VecDeque<NavigationEntry>,
forward_stack: VecDeque<NavigationEntry>,
closed_stack: VecDeque<NavigationEntry>,
paths_by_item: HashMap<usize, ProjectPath>,
pane: WeakViewHandle<Pane>,
}
#[derive(Copy, Clone)]
@ -173,13 +173,23 @@ impl Pane {
items: Vec::new(),
active_item_index: 0,
autoscroll: false,
nav_history: Default::default(),
nav_history: Rc::new(RefCell::new(NavHistory {
mode: NavigationMode::Normal,
backward_stack: Default::default(),
forward_stack: Default::default(),
closed_stack: Default::default(),
paths_by_item: Default::default(),
pane: handle.clone(),
})),
toolbar: cx.add_view(|_| Toolbar::new(handle)),
}
}
pub fn nav_history(&self) -> &Rc<RefCell<NavHistory>> {
&self.nav_history
pub fn nav_history_for_item<T: Item>(&self, item: &ViewHandle<T>) -> ItemNavHistory {
ItemNavHistory {
history: self.nav_history.clone(),
item: Rc::new(item.downgrade()),
}
}
pub fn activate(&self, cx: &mut ViewContext<Self>) {
@ -224,6 +234,26 @@ impl Pane {
)
}
pub fn disable_history(&mut self) {
self.nav_history.borrow_mut().disable();
}
pub fn enable_history(&mut self) {
self.nav_history.borrow_mut().enable();
}
pub fn can_navigate_backward(&self) -> bool {
!self.nav_history.borrow().backward_stack.is_empty()
}
pub fn can_navigate_forward(&self) -> bool {
!self.nav_history.borrow().forward_stack.is_empty()
}
fn history_updated(&mut self, cx: &mut ViewContext<Self>) {
self.toolbar.update(cx, |_, cx| cx.notify());
}
fn navigate_history(
workspace: &mut Workspace,
pane: ViewHandle<Pane>,
@ -235,7 +265,7 @@ impl Pane {
let to_load = pane.update(cx, |pane, cx| {
loop {
// Retrieve the weak item handle from the history.
let entry = pane.nav_history.borrow_mut().pop(mode)?;
let entry = pane.nav_history.borrow_mut().pop(mode, cx)?;
// If the item is still present in this pane, then activate it.
if let Some(index) = entry
@ -368,7 +398,6 @@ impl Pane {
return;
}
item.set_nav_history(pane.read(cx).nav_history.clone(), cx);
item.added_to_pane(workspace, pane.clone(), cx);
pane.update(cx, |pane, cx| {
// If there is already an active item, then insert the new item
@ -626,11 +655,16 @@ impl Pane {
.borrow_mut()
.set_mode(NavigationMode::Normal);
let mut nav_history = pane.nav_history().borrow_mut();
if let Some(path) = item.project_path(cx) {
nav_history.paths_by_item.insert(item.id(), path);
pane.nav_history
.borrow_mut()
.paths_by_item
.insert(item.id(), path);
} else {
nav_history.paths_by_item.remove(&item.id());
pane.nav_history
.borrow_mut()
.paths_by_item
.remove(&item.id());
}
}
});
@ -954,57 +988,56 @@ impl View for Pane {
}
impl ItemNavHistory {
pub fn new<T: Item>(history: Rc<RefCell<NavHistory>>, item: &ViewHandle<T>) -> Self {
Self {
history,
item: Rc::new(item.downgrade()),
}
pub fn push<D: 'static + Any>(&self, data: Option<D>, cx: &mut MutableAppContext) {
self.history.borrow_mut().push(data, self.item.clone(), cx);
}
pub fn history(&self) -> Rc<RefCell<NavHistory>> {
self.history.clone()
pub fn pop_backward(&self, cx: &mut MutableAppContext) -> Option<NavigationEntry> {
self.history.borrow_mut().pop(NavigationMode::GoingBack, cx)
}
pub fn push<D: 'static + Any>(&self, data: Option<D>) {
self.history.borrow_mut().push(data, self.item.clone());
pub fn pop_forward(&self, cx: &mut MutableAppContext) -> Option<NavigationEntry> {
self.history
.borrow_mut()
.pop(NavigationMode::GoingForward, cx)
}
}
impl NavHistory {
pub fn disable(&mut self) {
self.mode = NavigationMode::Disabled;
}
pub fn enable(&mut self) {
self.mode = NavigationMode::Normal;
}
pub fn pop_backward(&mut self) -> Option<NavigationEntry> {
self.backward_stack.pop_back()
}
pub fn pop_forward(&mut self) -> Option<NavigationEntry> {
self.forward_stack.pop_back()
}
pub fn pop_closed(&mut self) -> Option<NavigationEntry> {
self.closed_stack.pop_back()
}
fn pop(&mut self, mode: NavigationMode) -> Option<NavigationEntry> {
match mode {
NavigationMode::Normal | NavigationMode::Disabled | NavigationMode::ClosingItem => None,
NavigationMode::GoingBack => self.pop_backward(),
NavigationMode::GoingForward => self.pop_forward(),
NavigationMode::ReopeningClosedItem => self.pop_closed(),
}
}
fn set_mode(&mut self, mode: NavigationMode) {
self.mode = mode;
}
pub fn push<D: 'static + Any>(&mut self, data: Option<D>, item: Rc<dyn WeakItemHandle>) {
fn disable(&mut self) {
self.mode = NavigationMode::Disabled;
}
fn enable(&mut self) {
self.mode = NavigationMode::Normal;
}
fn pop(&mut self, mode: NavigationMode, cx: &mut MutableAppContext) -> Option<NavigationEntry> {
let entry = match mode {
NavigationMode::Normal | NavigationMode::Disabled | NavigationMode::ClosingItem => {
return None
}
NavigationMode::GoingBack => &mut self.backward_stack,
NavigationMode::GoingForward => &mut self.forward_stack,
NavigationMode::ReopeningClosedItem => &mut self.closed_stack,
}
.pop_back();
if entry.is_some() {
self.did_update(cx);
}
entry
}
fn push<D: 'static + Any>(
&mut self,
data: Option<D>,
item: Rc<dyn WeakItemHandle>,
cx: &mut MutableAppContext,
) {
match self.mode {
NavigationMode::Disabled => {}
NavigationMode::Normal | NavigationMode::ReopeningClosedItem => {
@ -1045,5 +1078,12 @@ impl NavHistory {
});
}
}
self.did_update(cx);
}
fn did_update(&self, cx: &mut MutableAppContext) {
if let Some(pane) = self.pane.upgrade(cx) {
cx.defer(move |cx| pane.update(cx, |pane, cx| pane.history_updated(cx)));
}
}
}

23
crates/workspace/src/toolbar.rs
View file

@ -101,6 +101,14 @@ impl View for Toolbar {
}
let pane = self.pane.clone();
let mut enable_go_backward = false;
let mut enable_go_forward = false;
if let Some(pane) = pane.upgrade(cx) {
let pane = pane.read(cx);
enable_go_backward = pane.can_navigate_backward();
enable_go_forward = pane.can_navigate_forward();
}
let container_style = theme.container;
let height = theme.height;
let button_style = theme.nav_button;
@ -111,6 +119,7 @@ impl View for Toolbar {
.with_child(nav_button(
"icons/arrow-left.svg",
button_style,
enable_go_backward,
spacing,
super::GoBack {
pane: Some(pane.clone()),
@ -120,6 +129,7 @@ impl View for Toolbar {
.with_child(nav_button(
"icons/arrow-right.svg",
button_style,
enable_go_forward,
spacing,
super::GoForward {
pane: Some(pane.clone()),
@ -142,12 +152,17 @@ impl View for Toolbar {
fn nav_button<A: Action + Clone>(
svg_path: &'static str,
style: theme::Interactive<theme::IconButton>,
enabled: bool,
spacing: f32,
action: A,
cx: &mut RenderContext<Toolbar>,
) -> ElementBox {
MouseEventHandler::new::<A, _, _>(0, cx, |state, _| {
let style = style.style_for(state, false);
let style = if enabled {
style.style_for(state, false)
} else {
style.disabled_style()
};
Svg::new(svg_path)
.with_color(style.color)
.constrained()
@ -160,7 +175,11 @@ fn nav_button<A: Action + Clone>(
.with_height(style.button_width)
.boxed()
})
.with_cursor_style(CursorStyle::PointingHand)
.with_cursor_style(if enabled {
CursorStyle::PointingHand
} else {
CursorStyle::default()
})
.on_mouse_down(move |_, cx| cx.dispatch_action(action.clone()))
.contained()
.with_margin_right(spacing)

10
crates/workspace/src/workspace.rs
View file

@ -414,7 +414,6 @@ pub trait ItemHandle: 'static + fmt::Debug {
fn project_entry_ids(&self, cx: &AppContext) -> SmallVec<[ProjectEntryId; 3]>;
fn is_singleton(&self, cx: &AppContext) -> bool;
fn boxed_clone(&self) -> Box<dyn ItemHandle>;
fn set_nav_history(&self, nav_history: Rc<RefCell<NavHistory>>, cx: &mut MutableAppContext);
fn clone_on_split(&self, cx: &mut MutableAppContext) -> Option<Box<dyn ItemHandle>>;
fn added_to_pane(
&self,
@ -484,12 +483,6 @@ impl<T: Item> ItemHandle for ViewHandle<T> {
Box::new(self.clone())
}
fn set_nav_history(&self, nav_history: Rc<RefCell<NavHistory>>, cx: &mut MutableAppContext) {
self.update(cx, |item, cx| {
item.set_nav_history(ItemNavHistory::new(nav_history, &cx.handle()), cx);
})
}
fn clone_on_split(&self, cx: &mut MutableAppContext) -> Option<Box<dyn ItemHandle>> {
self.update(cx, |item, cx| {
cx.add_option_view(|cx| item.clone_on_split(cx))
@ -503,6 +496,9 @@ impl<T: Item> ItemHandle for ViewHandle<T> {
pane: ViewHandle<Pane>,
cx: &mut ViewContext<Workspace>,
) {
let history = pane.read(cx).nav_history_for_item(self);
self.update(cx, |this, cx| this.set_nav_history(history, cx));
if let Some(followed_item) = self.to_followable_item_handle(cx) {
if let Some(message) = followed_item.to_state_proto(cx) {
workspace.update_followers(

6
styles/src/styleTree/workspace.ts
View file

@ -140,13 +140,15 @@ export default function workspace(theme: Theme) {
border: border(theme, "secondary", { bottom: true }),
itemSpacing: 8,
navButton: {
color: iconColor(theme, "secondary"),
color: iconColor(theme, "primary"),
iconWidth: 8,
buttonWidth: 12,
margin: { left: 8, right: 8 },
hover: {
color: iconColor(theme, "active"),
},
disabled: {
color: iconColor(theme, "muted")
}
},
padding: { left: 16, right: 8, top: 4, bottom: 4 },
},