finally have a proper scroll bar
This commit is contained in:
Connor Johnstone
+182
-41
@@ -35,6 +35,111 @@ pub fn library_page() -> Html {
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});
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}
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// Measure DOM heights after render and set spacer flex-grow values directly.
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// Must be called before any early returns to maintain consistent hook order.
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{
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let artist_count = artists.as_ref().map(|a| a.len()).unwrap_or(0);
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use_effect_with(artist_count, move |_| {
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if let Some(window) = web_sys::window() {
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if let Some(doc) = window.document() {
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// a. height of the first row
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let row_h = doc
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.query_selector("#library-table tbody tr")
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.ok()
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.flatten()
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.and_then(|el| el.dyn_into::<web_sys::HtmlElement>().ok())
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.map(|el| el.offset_height() as f64)
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.unwrap_or(0.0);
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// b. px from top of page to first artist row
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let header_h = doc
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.query_selector("[id^='letter-']")
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.map(|el| {
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el.map(|el| {
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let rect = el.get_bounding_client_rect();
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rect.top() + window.scroll_y().unwrap_or(0.0)
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})
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.unwrap_or(0.0)
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})
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.unwrap_or(0.0);
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// c. footer = distance from last row bottom to document bottom
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let doc_h = doc
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.document_element()
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.map(|el| el.scroll_height() as f64)
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.unwrap_or(0.0);
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let last_row_bottom = doc
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.query_selector("#library-table tbody tr:last-child")
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.ok()
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.flatten()
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.map(|el| {
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let rect = el.get_bounding_client_rect();
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rect.bottom() + window.scroll_y().unwrap_or(0.0)
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})
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.unwrap_or(doc_h);
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let footer_h = (doc_h - last_row_bottom).max(0.0);
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// d. Compute percentage heights for all track elements.
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// Total page = header + table rows + footer
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let num_rows = artist_count.max(1) as f64;
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let table_h = num_rows * row_h;
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let total_h = header_h + table_h + footer_h;
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if total_h <= 0.0 {
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return;
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}
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let header_pct = header_h / total_h * 100.0;
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let footer_pct = footer_h / total_h * 100.0;
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let table_pct = table_h / total_h * 100.0;
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// Set header spacer height
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if let Some(el) = doc.get_element_by_id("scroll-track-header-spacer") {
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if let Ok(el) = el.dyn_into::<web_sys::HtmlElement>() {
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let _ = el
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.style()
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.set_property("height", &format!("{header_pct:.2}%"));
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}
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}
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// Set footer spacer height
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if let Some(el) = doc.get_element_by_id("scroll-track-footer-spacer") {
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if let Ok(el) = el.dyn_into::<web_sys::HtmlElement>() {
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let _ = el
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.style()
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.set_property("height", &format!("{footer_pct:.2}%"));
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}
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}
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// Set each letter's height (letter_fraction * table_pct)
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let track_h = window
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.inner_height()
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.ok()
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.and_then(|v| v.as_f64())
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.unwrap_or(800.0);
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if let Ok(letters) = doc.query_selector_all(".scroll-track-letter") {
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for i in 0..letters.length() {
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if let Some(el) = letters.item(i) {
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if let Ok(el) = el.dyn_into::<web_sys::HtmlElement>() {
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if let Some(grow_str) = el.dataset().get("grow") {
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if let Ok(grow) = grow_str.parse::<f64>() {
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let pct = grow * table_pct;
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let px = pct / 100.0 * track_h;
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let _ = el
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.style()
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.set_property("height", &format!("{pct:.2}%"));
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// Hide text if cell is too short to fit it
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if px < 18.0 {
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let _ = el.style().set_property("font-size", "0");
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}
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}
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}
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}
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}
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}
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}
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}
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}
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});
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}
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if let Some(ref err) = *error {
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return html! { <div class="error">{ format!("Error: {err}") }</div> };
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}
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@@ -61,13 +166,33 @@ pub fn library_page() -> Html {
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}
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})
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.collect();
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let active_letters: HashSet<char> = first_of_letter.values().copied().collect();
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// Build scroll track letter data
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let letters: Vec<char> = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ".chars().collect();
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let scroll_track_items: Vec<(String, bool)> = letters
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// Count artists per letter for proportional sizing
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let mut letter_counts: HashMap<char, usize> = HashMap::new();
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for a in artists.iter() {
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let first = a.name.chars().next().unwrap_or('#').to_ascii_uppercase();
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let letter = if first.is_ascii_alphabetic() {
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first
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} else {
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'#'
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};
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*letter_counts.entry(letter).or_default() += 1;
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}
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let total_artists = artists.len().max(1);
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let all_letters: Vec<char> = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ".chars().collect();
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let scroll_track_items: Vec<(String, f64)> = all_letters
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.iter()
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.map(|&c| (c.to_string(), active_letters.contains(&c)))
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.filter_map(|&c| {
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let count = letter_counts.get(&c).copied().unwrap_or(0);
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if count > 0 {
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// Percentage of total artists — will be scaled to percentage of track
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// by the effect that measures header/footer
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Some((c.to_string(), count as f64 / total_artists as f64))
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} else {
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None
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}
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})
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.collect();
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html! {
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@@ -80,29 +205,7 @@ pub fn library_page() -> Html {
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if artists.is_empty() {
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<p class="text-muted">{ "No artists in library. Use Search to add some!" }</p>
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} else {
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<div class="scroll-track">
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{ for scroll_track_items.iter().map(|(letter, active)| {
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let letter_c = letter.clone();
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let active = *active;
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let class = if active { "scroll-track-letter has-artists" } else { "scroll-track-letter" };
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let onclick = Callback::from(move |_: MouseEvent| {
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if active {
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if let Some(window) = web_sys::window() {
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if let Some(doc) = window.document() {
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if let Some(el) = doc.get_element_by_id(&format!("letter-{}", letter_c)) {
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let _ = el.dyn_into::<web_sys::HtmlElement>()
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.map(|el| el.scroll_into_view());
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}
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}
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}
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}
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});
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html! {
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<div class={class} onclick={onclick}>{ letter }</div>
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}
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})}
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</div>
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<table>
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<table id="library-table">
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<thead>
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<tr>
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<th>{ "Name" }</th>
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@@ -114,12 +217,14 @@ pub fn library_page() -> Html {
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</thead>
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<tbody>
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{ for artists.iter().map(|a| {
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let anchor_id = first_of_letter.get(&a.id).map(|c| format!("letter-{c}"));
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let anchor_id =
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first_of_letter.get(&a.id).map(|c| format!("letter-{c}"));
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let artist_id = a.id;
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let artist_name = a.name.clone();
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let artist_mbid = a.musicbrainz_id.clone();
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let is_watched = a.total_watched > 0;
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let is_fully_watched = a.enriched && a.total_watched >= a.total_items && a.total_items > 0;
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let is_fully_watched =
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a.enriched && a.total_watched >= a.total_items && a.total_items > 0;
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let is_monitored = a.monitored;
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let on_remove = {
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@@ -178,7 +283,9 @@ pub fn library_page() -> Html {
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let error = error.clone();
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let fetch = fetch.clone();
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wasm_bindgen_futures::spawn_local(async move {
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match api::set_artist_monitored(artist_id, !is_monitored).await {
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match api::set_artist_monitored(artist_id, !is_monitored)
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.await
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{
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Ok(_) => fetch.emit(()),
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Err(e) => error.set(Some(e.0)),
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}
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@@ -192,22 +299,29 @@ pub fn library_page() -> Html {
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} else {
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0
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};
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let owned_color = if a.total_owned >= a.total_watched && a.total_watched > 0 {
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"var(--success)"
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} else if a.total_owned > 0 {
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"var(--warning)"
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} else {
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"var(--text-muted)"
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};
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let owned_bar_style = format!("width:{owned_pct}%;background:{owned_color};");
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let owned_color =
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if a.total_owned >= a.total_watched && a.total_watched > 0 {
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"var(--success)"
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} else if a.total_owned > 0 {
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"var(--warning)"
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} else {
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"var(--text-muted)"
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};
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let owned_bar_style =
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format!("width:{owned_pct}%;background:{owned_color};");
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let watched_pct = if a.total_items > 0 {
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(a.total_watched as f64 / a.total_items as f64 * 100.0) as u32
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} else {
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0
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};
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let watched_color = if a.total_watched > 0 { "var(--accent)" } else { "var(--text-muted)" };
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let watched_bar_style = format!("width:{watched_pct}%;background:{watched_color};");
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let watched_color = if a.total_watched > 0 {
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"var(--accent)"
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} else {
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"var(--text-muted)"
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};
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let watched_bar_style =
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format!("width:{watched_pct}%;background:{watched_color};");
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html! {
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<tr id={anchor_id}>
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@@ -263,6 +377,33 @@ pub fn library_page() -> Html {
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})}
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</tbody>
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</table>
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<div class="scroll-track">
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<div id="scroll-track-header-spacer"></div>
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{ for scroll_track_items.iter().map(|(letter, grow)| {
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let letter_c = letter.clone();
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let data_grow = format!("{grow:.6}");
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let onclick = Callback::from(move |_: MouseEvent| {
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if let Some(window) = web_sys::window() {
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if let Some(doc) = window.document() {
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if let Some(el) = doc.get_element_by_id(&format!("letter-{}", letter_c)) {
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let rect = el.get_bounding_client_rect();
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let scroll_y = window.scroll_y().unwrap_or(0.0);
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window.scroll_to_with_x_and_y(
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0.0,
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rect.top() + scroll_y - 60.0,
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);
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}
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}
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}
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});
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html! {
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<div class="scroll-track-letter" data-grow={data_grow} {onclick}>
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{ letter }
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</div>
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}
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})}
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<div id="scroll-track-footer-spacer"></div>
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</div>
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}
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</div>
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}
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