84 lines
2.5 KiB
Rust
84 lines
2.5 KiB
Rust
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// SPDX-License-Identifier: GPL-3.0-only
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use super::{Data, Orientation, OutputInfo};
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use id_tree::{NodeId, Tree};
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use smithay::{
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desktop::layer_map_for_output,
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reexports::wayland_server::protocol::{wl_pointer::ButtonState, wl_surface},
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utils::{Logical, Point},
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wayland::{
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output::Output,
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seat::{AxisFrame, PointerGrab, PointerGrabStartData, PointerInnerHandle},
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Serial,
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},
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};
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use std::cell::RefCell;
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pub struct ResizeForkGrab {
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pub start_data: PointerGrabStartData,
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pub node_id: NodeId,
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pub initial_ratio: f64,
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pub idx: u8,
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pub output: Output,
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}
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impl PointerGrab for ResizeForkGrab {
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fn motion(
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&mut self,
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handle: &mut PointerInnerHandle<'_>,
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location: Point<f64, Logical>,
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_focus: Option<(wl_surface::WlSurface, Point<i32, Logical>)>,
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serial: Serial,
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time: u32,
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) {
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// While the grab is active, no client has pointer focus
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handle.motion(location, None, serial, time);
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let delta = location - self.start_data.location;
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let mut output_info = self
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.output
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.user_data()
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.get::<RefCell<OutputInfo>>()
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.unwrap()
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.borrow_mut();
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let tree = &mut output_info.trees.entry(self.idx).or_insert_with(Tree::new);
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if let Some(&mut Data::Fork {
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ref mut ratio,
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ref orientation,
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}) = tree.get_mut(&self.node_id).map(|x| x.data_mut()).ok()
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{
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let size = layer_map_for_output(&self.output).non_exclusive_zone().size;
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let delta = match orientation {
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Orientation::Vertical => delta.x / size.w as f64,
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Orientation::Horizontal => delta.y / size.h as f64,
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};
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*ratio = 0.9f64.min(0.1f64.max(self.initial_ratio + delta));
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} else {
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handle.unset_grab(serial, time);
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}
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}
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fn button(
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&mut self,
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handle: &mut PointerInnerHandle<'_>,
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button: u32,
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state: ButtonState,
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serial: Serial,
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time: u32,
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) {
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handle.button(button, state, serial, time);
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if handle.current_pressed().is_empty() {
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// No more buttons are pressed, release the grab.
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handle.unset_grab(serial, time);
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}
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}
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fn axis(&mut self, handle: &mut PointerInnerHandle<'_>, details: AxisFrame) {
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handle.axis(details)
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}
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fn start_data(&self) -> &PointerGrabStartData {
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&self.start_data
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}
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}
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