137 lines
5.1 KiB
Rust
137 lines
5.1 KiB
Rust
use crate::common::ModelType;
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use crate::MainWindow;
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use slint::{ComponentHandle, Model, ModelRc, VecModel};
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use std::borrow::Borrow;
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pub fn connect_delete_button(app: &MainWindow) {
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let a = app.as_weak();
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app.on_deleted(move || {
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let app = a.upgrade().unwrap();
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let r = app.get_empty_folder_model();
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let m = r.borrow();
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let (entries_to_delete, mut entries_left): (Vec<ModelType>, Vec<ModelType>) = m.iter().partition(|(checked, _header_row, _selected_row, _data)| *checked);
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if !entries_to_delete.is_empty() {
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dbg!(format!("Items to remove {}", entries_to_delete.len()));
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entries_to_delete.into_iter().for_each(|(_checked, _header_row, _selected_row, _data)| {
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// TODO delete in parallel items, consider to add progress bar
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});
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entries_left.iter_mut().for_each(|(_checked, _header_row, selected_row, _data)| {
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*selected_row = false;
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});
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let r = ModelRc::new(VecModel::from(entries_left));
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app.set_empty_folder_model(r);
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}
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});
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}
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fn filter_out_checked_items(items: &ModelRc<ModelType>, have_header: bool) -> (Vec<ModelType>, Vec<ModelType>) {
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if cfg!(debug_assertions) {
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check_if_header_is_checked(items);
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check_if_header_is_selected_but_should_not_be(items, have_header);
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}
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let (entries_to_delete, mut entries_left): (Vec<_>, Vec<_>) = items.iter().partition(|(checked, _header_row, _selected_row, _data)| *checked);
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if have_header && !entries_left.is_empty() {
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// First row must be header
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assert!(entries_left[0].1);
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if entries_left.len() == 3 {
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// First row is header, so if second or third is also header, then there is no enough items to fill model
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if entries_left[1].1 || entries_left[2].1 {
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entries_left = Vec::new();
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}
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} else if entries_left.len() < 3 {
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// Not have enough items to fill model
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entries_left = Vec::new();
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} else {
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let mut last_header = 0;
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let mut new_items: Vec<ModelType> = Vec::new();
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for i in 1..entries_left.len() {
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if entries_left[i].1 {
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if i - last_header > 2 {
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new_items.extend(entries_left[last_header..i].iter().cloned());
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}
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last_header = i;
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}
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}
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if entries_left.len() - last_header > 2 {
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new_items.extend(entries_left[last_header..].iter().cloned());
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}
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entries_left = new_items;
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}
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}
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(entries_to_delete, entries_left)
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}
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// Function to verify if really headers are not checked
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// Checked header is big bug
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#[cfg(debug_assertions)]
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fn check_if_header_is_checked(items: &ModelRc<ModelType>) {
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for i in items.iter() {
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let (checked, header_row, _selected_row, _data) = i;
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if header_row {
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assert!(!checked);
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}
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}
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}
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// In some modes header should not be visible
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#[cfg(debug_assertions)]
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fn check_if_header_is_selected_but_should_not_be(items: &ModelRc<ModelType>, can_have_header: bool) {
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if !can_have_header {
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for i in items.iter() {
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let (_checked, header_row, _selected_row, _data) = i;
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assert!(!header_row);
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}
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}
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}
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#[test]
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fn test_filter_out_checked_items_empty() {
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let vec_items = Vec::new();
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let items: ModelRc<ModelType> = ModelRc::new(VecModel::from(vec_items));
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let (to_delete, left) = filter_out_checked_items(&items, false);
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assert!(to_delete.is_empty());
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assert!(left.is_empty());
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let (to_delete, left) = filter_out_checked_items(&items, true);
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assert!(to_delete.is_empty());
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assert!(left.is_empty());
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}
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#[test]
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fn test_filter_out_checked_items_one_element_valid_normal() {
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let vec_items = vec![(false, false, false, ModelRc::new(VecModel::default()))];
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let items: ModelRc<ModelType> = ModelRc::new(VecModel::from(vec_items));
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let (to_delete, left) = filter_out_checked_items(&items, false);
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assert!(to_delete.is_empty());
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assert_eq!(left.len(), items.iter().count());
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}
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#[test]
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fn test_filter_out_checked_items_one_element_valid_header() {
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let vec_items = vec![(false, true, false, ModelRc::new(VecModel::default()))];
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let items: ModelRc<ModelType> = ModelRc::new(VecModel::from(vec_items));
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let (to_delete, left) = filter_out_checked_items(&items, true);
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assert!(to_delete.is_empty());
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assert_eq!(left.len(), items.iter().count());
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}
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#[test]
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#[should_panic]
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fn test_filter_out_checked_items_one_element_invalid_normal() {
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let vec_items = vec![(false, true, false, ModelRc::new(VecModel::default()))];
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let items: ModelRc<ModelType> = ModelRc::new(VecModel::from(vec_items));
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filter_out_checked_items(&items, false);
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}
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#[test]
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#[should_panic]
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fn test_filter_out_checked_items_one_element_invalid_header() {
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let vec_items = vec![(false, false, false, ModelRc::new(VecModel::default()))];
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let items: ModelRc<ModelType> = ModelRc::new(VecModel::from(vec_items));
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filter_out_checked_items(&items, true);
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}
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