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use crate::{ component::UserInterfaceView, resource::{ApplicationData, UserInterfaceRes}, }; use core::{ app::AppLifeCycle, ecs::{Join, Read, ReadExpect, System, Write, WriteStorage}, }; use input::resource::{InputController, TriggerState}; use raui_core::{ application::Application, interactive::default_interactions_engine::{Interaction, PointerButton}, layout::default_layout_engine::DefaultLayoutEngine, widget::{ component::interactive::navigation::{NavSignal, NavTextChange}, setup as core_setup, utils::Vec2, }, }; use raui_material::setup as material_setup; use std::collections::HashMap; #[derive(Default)] pub struct UserInterfaceSystem { last_pointer_pos: Vec2, } impl<'s> System<'s> for UserInterfaceSystem { type SystemData = ( ReadExpect<'s, AppLifeCycle>, Write<'s, UserInterfaceRes>, Read<'s, InputController>, WriteStorage<'s, UserInterfaceView>, ); fn run(&mut self, (life_cycle, mut res, input, mut views): Self::SystemData) { let ui: &mut UserInterfaceRes = &mut *res; ui.data = std::mem::take(&mut ui.data) .into_iter() .filter(|(k, _)| views.join().any(|v| k == v.app_id())) .collect::<HashMap<_, _>>(); for view in (&mut views).join() { if !ui.data.contains_key(view.app_id()) { let mut application = Application::new(); application.setup(core_setup); application.setup(material_setup); if let Some(setup) = ui.setup { setup(&mut application); } ui.data.insert( view.app_id().to_owned(), ApplicationData { application, interactions: Default::default(), coords_mapping: Default::default(), }, ); } if view.dirty { view.dirty = false; let app = ui.application_mut(view.app_id()).unwrap(); let root = app .deserialize_node(view.root().clone()) .expect("Could not deserialize UI node"); app.apply(root); } } let pointer_pos = Vec2 { x: input.axis_or_default(&ui.pointer_axis_x), y: input.axis_or_default(&ui.pointer_axis_y), }; let pointer_moved = (pointer_pos.x - self.last_pointer_pos.x).abs() > 1.0e-6 || (pointer_pos.y - self.last_pointer_pos.y).abs() > 1.0e-6; self.last_pointer_pos = pointer_pos; let pointer_trigger = input.trigger_or_default(&ui.pointer_action_trigger); let pointer_context = input.trigger_or_default(&ui.pointer_context_trigger); let mut text = input .text() .chars() .filter_map(|c| { if !c.is_control() { Some(NavTextChange::InsertCharacter(c)) } else if c == '\n' || c == '\r' { Some(NavTextChange::NewLine) } else { None } }) .collect::<Vec<_>>(); let accept = input.trigger_or_default(&ui.navigate_accept); let cancel = input.trigger_or_default(&ui.navigate_cancel); let up = input.trigger_or_default(&ui.navigate_up) == TriggerState::Pressed; let down = input.trigger_or_default(&ui.navigate_down) == TriggerState::Pressed; let left = input.trigger_or_default(&ui.navigate_left) == TriggerState::Pressed; let right = input.trigger_or_default(&ui.navigate_right) == TriggerState::Pressed; let prev = input.trigger_or_default(&ui.navigate_prev) == TriggerState::Pressed; let next = input.trigger_or_default(&ui.navigate_next) == TriggerState::Pressed; if input.trigger_or_default(&ui.text_move_cursor_left) == TriggerState::Pressed { text.push(NavTextChange::MoveCursorLeft); } if input.trigger_or_default(&ui.text_move_cursor_right) == TriggerState::Pressed { text.push(NavTextChange::MoveCursorRight); } if input.trigger_or_default(&ui.text_move_cursor_start) == TriggerState::Pressed { text.push(NavTextChange::MoveCursorStart); } if input.trigger_or_default(&ui.text_move_cursor_end) == TriggerState::Pressed { text.push(NavTextChange::MoveCursorEnd); } if input.trigger_or_default(&ui.text_delete_left) == TriggerState::Pressed { text.push(NavTextChange::DeleteLeft); } if input.trigger_or_default(&ui.text_delete_right) == TriggerState::Pressed { text.push(NavTextChange::DeleteRight); } for data in ui.data.values_mut() { let pointer_pos = data.coords_mapping.real_to_virtual_vec2(pointer_pos); if pointer_moved { data.interactions .interact(Interaction::PointerMove(pointer_pos)); } match pointer_trigger { TriggerState::Pressed => { data.interactions.interact(Interaction::PointerDown( PointerButton::Trigger, pointer_pos, )); } TriggerState::Released => { data.interactions .interact(Interaction::PointerUp(PointerButton::Trigger, pointer_pos)); } _ => {} } match pointer_context { TriggerState::Pressed => { data.interactions.interact(Interaction::PointerDown( PointerButton::Context, pointer_pos, )); } TriggerState::Released => { data.interactions .interact(Interaction::PointerUp(PointerButton::Context, pointer_pos)); } _ => {} } for change in &text { data.interactions .interact(Interaction::Navigate(NavSignal::TextChange(*change))); } match accept { TriggerState::Pressed => { data.interactions .interact(Interaction::Navigate(NavSignal::Accept(true))); } TriggerState::Released => { data.interactions .interact(Interaction::Navigate(NavSignal::Accept(false))); } _ => {} } match cancel { TriggerState::Pressed => { data.interactions .interact(Interaction::Navigate(NavSignal::Cancel(true))); } TriggerState::Released => { data.interactions .interact(Interaction::Navigate(NavSignal::Cancel(false))); } _ => {} } if up { data.interactions .interact(Interaction::Navigate(NavSignal::Up)); } if down { data.interactions .interact(Interaction::Navigate(NavSignal::Down)); } if left { data.interactions .interact(Interaction::Navigate(NavSignal::Left)); } if right { data.interactions .interact(Interaction::Navigate(NavSignal::Right)); } if prev { data.interactions .interact(Interaction::Navigate(NavSignal::Prev)); } if next { data.interactions .interact(Interaction::Navigate(NavSignal::Next)); } } let mut meta = views.join().collect::<Vec<_>>(); meta.sort_by(|a, b| a.input_order.cmp(&b.input_order)); let mut captured = false; for view in meta { if let Some(data) = ui.data.get_mut(view.app_id()) { data.application.animations_delta_time = life_cycle.delta_time_seconds(); data.application.process(); data.application .layout(&data.coords_mapping, &mut DefaultLayoutEngine) .unwrap_or_default(); if captured { data.interactions.clear_queue(true); } data.interactions.deselect_when_no_button_found = view.deselect_when_no_button_found; if let Ok(result) = data.application.interact(&mut data.interactions) { if view.capture_input && result.is_any() { captured = true; } } } } res.last_frame_captured = captured; } }