102 lines
3.3 KiB
Rust
102 lines
3.3 KiB
Rust
use adw::{prelude::*, subclass::prelude::*};
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use gtk::{glib, glib::clone, CompositeTemplate};
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use super::{FileRow, HistoryViewerEvent, HistoryViewerEventType, HistoryViewerTimeline};
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use crate::spawn;
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const MIN_N_ITEMS: u32 = 20;
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mod imp {
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use std::cell::OnceCell;
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use glib::subclass::InitializingObject;
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use super::*;
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#[derive(Debug, Default, CompositeTemplate, glib::Properties)]
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#[template(
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resource = "/org/gnome/Fractal/ui/session/view/content/room_details/history_viewer/file.ui"
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)]
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#[properties(wrapper_type = super::FileHistoryViewer)]
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pub struct FileHistoryViewer {
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/// The timeline containing the file events.
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#[property(get, set = Self::set_timeline, construct_only)]
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pub timeline: OnceCell<HistoryViewerTimeline>,
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#[template_child]
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pub list_view: TemplateChild<gtk::ListView>,
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}
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#[glib::object_subclass]
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impl ObjectSubclass for FileHistoryViewer {
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const NAME: &'static str = "ContentFileHistoryViewer";
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type Type = super::FileHistoryViewer;
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type ParentType = adw::NavigationPage;
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fn class_init(klass: &mut Self::Class) {
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FileRow::static_type();
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Self::bind_template(klass);
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klass.set_css_name("file-history-viewer");
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}
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fn instance_init(obj: &InitializingObject<Self>) {
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obj.init_template();
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}
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}
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#[glib::derived_properties]
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impl ObjectImpl for FileHistoryViewer {}
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impl WidgetImpl for FileHistoryViewer {}
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impl NavigationPageImpl for FileHistoryViewer {}
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impl FileHistoryViewer {
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/// Set the timeline containing the media events.
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fn set_timeline(&self, timeline: HistoryViewerTimeline) {
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let filter = gtk::CustomFilter::new(|obj| {
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obj.downcast_ref::<HistoryViewerEvent>()
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.is_some_and(|e| e.event_type() == HistoryViewerEventType::File)
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});
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let filter_model = gtk::FilterListModel::new(Some(timeline.clone()), Some(filter));
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let model = gtk::NoSelection::new(Some(filter_model));
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self.list_view.set_model(Some(&model));
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// Load an initial number of items
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spawn!(
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clone!(@weak self as imp, @weak timeline, @weak model => async move {
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while model.n_items() < MIN_N_ITEMS {
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if !timeline.load().await {
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break;
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}
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}
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let adj = imp.list_view.vadjustment().unwrap();
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adj.connect_value_notify(clone!(@weak timeline => move |adj| {
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if adj.value() + adj.page_size() * 2.0 >= adj.upper() {
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spawn!(async move { timeline.load().await; });
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}
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}));
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})
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);
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self.timeline.set(timeline).unwrap();
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}
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}
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}
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glib::wrapper! {
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/// A view presenting the list of file events in a room.
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pub struct FileHistoryViewer(ObjectSubclass<imp::FileHistoryViewer>)
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@extends gtk::Widget, adw::NavigationPage;
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}
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impl FileHistoryViewer {
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pub fn new(timeline: &HistoryViewerTimeline) -> Self {
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glib::Object::builder()
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.property("timeline", timeline)
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.build()
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}
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}
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