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use handlers::geometry::UsableScreenGeometry;
use handlers::store::{Store, StoreKey};
use handlers::workspaces::modes::Mode;
use slog;
use slog_scope;
use std::cmp;
use wlc::{Button, ButtonState, Callback, Geometry, Modifiers, Output, Point, ResizeEdge, Size, View,
ViewState, ViewType, WeakView, input};
/// A `Mode` that does traditional `View` management.
///
/// `View`s are "floating" on the `Output`, may obstruct each other and
/// their requests for placement (like maximizing) are respected.
pub struct Floating {
views: Vec<WeakView>,
active_view: Option<WeakView>,
geo: Geometry,
logger: slog::Logger,
}
/// Configuration for `Floating`
#[derive(Debug, Default, Clone, PartialEq, Eq, Hash, Deserialize)]
pub struct FloatingConfig {}
struct InteractiveMove;
struct InteractiveResize;
struct Maximized;
impl StoreKey for InteractiveMove {
type Value = Point;
}
impl StoreKey for InteractiveResize {
type Value = ResizeEdge::Flags;
}
impl StoreKey for Maximized {
type Value = Geometry;
}
impl Callback for Floating {
fn view_created(&mut self, view: &View) -> bool {
debug!(self.logger, "Register View: {:?}", view);
if let Some(pos) = view.positioner() {
let mut size_req = pos.size();
if size_req.w == 0 || size_req.h == 0 {
size_req = view.geometry().size;
}
let mut geometry = Geometry {
origin: pos.anchor_rect().origin,
size: size_req,
};
if let Some(parent) = view.parent() {
let parent_geometry = parent.geometry();
geometry.origin.x += parent_geometry.origin.x;
geometry.origin.y += parent_geometry.origin.y;
}
view.set_geometry(ResizeEdge::Null, geometry);
} else {
// fix out of bounds
{
let view_geometry = view.geometry();
if !(view_geometry.origin > self.geo.origin) || (view_geometry.size > self.geo.size) {
view.set_geometry(ResizeEdge::Null,
Geometry {
origin: Point {
x: cmp::max(self.geo.origin.x, view_geometry.origin.x),
y: cmp::max(self.geo.origin.y, view_geometry.origin.y),
},
size: Size {
w: cmp::min(self.geo.size.w, view_geometry.size.w),
h: cmp::min(self.geo.size.h, view_geometry.size.h),
},
});
}
}
// center
if !view.view_type().intersects(ViewType::Unmanaged | ViewType::OverrideRedirect) {
let view_geometry = view.geometry();
view.set_geometry(ResizeEdge::Null,
Geometry {
origin: Point {
x: (self.geo.size.w as i32 / 2) - (view_geometry.size.w as i32 / 2),
y: (self.geo.size.h as i32 / 2) - (view_geometry.size.h as i32 / 2),
},
size: view_geometry.size,
});
}
}
self.views.push(view.weak_reference());
true
}
fn view_focus(&mut self, view: &View, focus: bool) {
if focus {
view.bring_to_front();
}
}
fn view_destroyed(&mut self, view: &View) {
self.views.retain(|x| x != &view.weak_reference());
}
fn view_request_geometry(&mut self, view: &View, geometry: Geometry) {
view.set_geometry(ResizeEdge::Null,
Geometry {
origin: Point {
x: cmp::max(self.geo.origin.x, geometry.origin.x),
y: cmp::max(self.geo.origin.y, geometry.origin.y),
},
size: Size {
w: cmp::min(self.geo.size.w, geometry.size.w),
h: cmp::min(self.geo.size.h, geometry.size.h),
},
});
}
fn view_request_state(&mut self, view: &View, state: ViewState::Flags, toggle: bool) {
match state {
x if x.contains(ViewState::Moving) && !toggle => view.set_state(ViewState::Moving, false),
x if x.contains(ViewState::Moving) && toggle => info!(self.logger, "Moving true?"),
x if x.contains(ViewState::Resizing) && !toggle => view.set_state(ViewState::Resizing, false),
x if x.contains(ViewState::Resizing) && toggle => info!(self.logger, "Resizing true?"),
x if x.contains(ViewState::Maximized) => {
if toggle {
debug!(self.logger, "Maximizing {:?}", view);
let old_geo = view.geometry();
view.set_geometry(ResizeEdge::Null, self.geo);
view.set_state(state, true);
view.insert::<Maximized>(old_geo);
} else {
if let Some(old_geo) = view.remove::<Maximized>() {
view.set_geometry(ResizeEdge::Null, old_geo);
}
view.set_state(state, false);
}
}
_ => {}
};
}
fn view_request_move(&mut self, view: &View, _origin: Point) {
debug!(self.logger, "Start moving View: {:?}", view);
view.set_state(ViewState::Moving, true);
let pointer = input::pointer::position();
let geo = view.geometry();
let relative = Point {
x: geo.origin.x - pointer.x,
y: geo.origin.y - pointer.y,
};
view.insert::<InteractiveMove>(relative);
self.active_view = Some(view.weak_reference());
}
fn view_request_resize(&mut self, view: &View, edges: ResizeEdge::Flags, _origin: Point) {
debug!(self.logger, "Start resizing View: {:?}", view);
view.set_state(ViewState::Resizing, true);
view.insert::<InteractiveResize>(edges);
self.active_view = Some(view.weak_reference());
}
fn output_resolution(&mut self, output: &Output, from: Size, to: Size) {
if to < from {
for view in &mut self.views {
view.run(|view| {
let geo = view.geometry();
let width = if geo.origin.x as u32 + geo.size.w > to.w {
to.w as i32 - geo.origin.x
} else {
geo.size.w as i32
} as u32;
let height = if geo.origin.y as u32 + geo.size.h > to.h {
to.h as i32 - geo.origin.y
} else {
geo.size.h as i32
} as u32;
view.set_geometry(ResizeEdge::Null,
Geometry {
origin: Point {
x: geo.origin.x,
y: geo.origin.y,
},
size: Size {
w: width,
h: height,
},
});
});
}
}
let lock = output.get::<UsableScreenGeometry>();
self.geo = match lock.as_ref().and_then(|x| x.read().ok()) {
Some(size) => *size,
None => {
Geometry {
origin: Point { x: 0, y: 0 },
size: to,
}
}
};
}
fn pointer_button(&mut self, _view: Option<&View>, _time: u32, _modifiers: Modifiers, button: Button,
state: ButtonState, _origin: Point)
-> bool {
if let Some(ref view) = self.active_view {
view.run(|view| if state == ButtonState::Released && button == Button::Left {
view.set_state(ViewState::Resizing, false);
view.set_state(ViewState::Moving, false);
});
}
false
}
fn pointer_motion(&mut self, _view: Option<&View>, _time: u32, origin: Point) -> bool {
let still_active = if let Some(ref view) = self.active_view {
view.run(|view| {
if !view.state().contains(ViewState::Moving) {
view.remove::<InteractiveMove>();
}
if !view.state().contains(ViewState::Resizing) {
view.remove::<InteractiveResize>();
}
view.get::<InteractiveMove>().is_some() || view.get::<InteractiveResize>().is_some()
})
.unwrap_or(false)
} else {
false
};
if !still_active {
self.active_view = None;
return false;
}
if let Some(ref view) = self.active_view {
view.run(|view| {
let lock = view.get::<InteractiveMove>();
if let Some(relative) = lock.as_ref().and_then(|x| x.read().ok()) {
let old = view.geometry();
view.set_geometry(ResizeEdge::Null,
Geometry {
origin: Point {
x: cmp::max(origin.x + (*relative).x, self.geo.origin.x),
y: cmp::max(origin.y + (*relative).y, self.geo.origin.y),
},
size: old.size,
});
return true;
}
let lock = view.get::<InteractiveResize>();
if let Some(edges) = lock.as_ref().and_then(|x| x.read().ok()) {
if edges.contains(ResizeEdge::Bottom) {
let old = view.geometry();
view.set_geometry(*edges,
Geometry {
origin: old.origin,
size: Size {
w: old.size.w,
h: cmp::max(origin.y - old.origin.y, 1) as u32,
},
});
}
if edges.contains(ResizeEdge::Top) {
let old = view.geometry();
view.set_geometry(*edges,
Geometry {
origin: Point {
x: old.origin.x,
y: cmp::max(self.geo.origin.y, origin.y),
},
size: Size {
w: old.size.w,
h: cmp::max(old.size.h as i32 +
(old.origin.y -
cmp::max(self.geo.origin.y, origin.y)),
1) as
u32,
},
});
}
if edges.contains(ResizeEdge::Left) {
let old = view.geometry();
view.set_geometry(*edges,
Geometry {
origin: Point {
x: cmp::max(self.geo.origin.x, origin.x),
y: old.origin.y,
},
size: Size {
w: cmp::max(old.size.w as i32 +
(old.origin.x -
cmp::max(self.geo.origin.x, origin.x)),
1) as
u32,
h: old.size.h,
},
});
}
if edges.contains(ResizeEdge::Right) {
let old = view.geometry();
view.set_geometry(*edges,
Geometry {
origin: old.origin,
size: Size {
w: cmp::max(origin.x - old.origin.x, 1) as u32,
h: old.size.h,
},
});
}
return true;
};
false
})
.unwrap_or(false)
} else {
false
}
}
}
impl Mode for Floating {
type Arguments = FloatingConfig;
fn new(_: FloatingConfig) -> Floating {
let mode = Floating {
views: Vec::new(),
active_view: None,
geo: Geometry {
origin: Point { x: 0, y: 0 },
size: Size { w: 0, h: 0 },
},
logger: slog_scope::logger().new(o!("instance" => "Floating")),
};
debug!(mode.logger, "Created");
mode
}
fn len(&self) -> usize {
self.views.len()
}
}