From af66381f5f354afd6a9d9b44196292af2755be28 Mon Sep 17 00:00:00 2001
From: Ethan Girouard <mr.egirouard@gmail.com>
Date: Sat, 11 May 2024 15:23:49 -0400
Subject: [PATCH] Implement dashboard row sideways scrolling

---
 src/components/dashboard_row.rs | 61 +++++++++++++++++++++++++++++++--
 style/dashboard_row.scss        | 31 +++++++++++++++++
 2 files changed, 90 insertions(+), 2 deletions(-)

diff --git a/src/components/dashboard_row.rs b/src/components/dashboard_row.rs
index 2917b86..4134161 100644
--- a/src/components/dashboard_row.rs
+++ b/src/components/dashboard_row.rs
@@ -1,7 +1,9 @@
+use leptos::html::Ul;
 use leptos::leptos_dom::*;
 use leptos::*;
 use serde::{Deserialize, Serialize};
 use crate::components::dashboard_tile::DashboardTile;
+use leptos_icons::*;
 
 /// A row of dashboard tiles, with a title
 #[derive(Serialize, Deserialize)]
@@ -21,10 +23,65 @@ impl DashboardRow {
 
 impl IntoView for DashboardRow {
 	fn into_view(self) -> View {
+		let list_ref = create_node_ref::<Ul>();
+
+		// Scroll functions attempt to align the left edge of the scroll area with the left edge of a tile
+		// This is done by scrolling to the nearest multiple of the tile width, plus some for padding
+
+		let scroll_left = move |_| {
+			if let Some(scroll_element) = list_ref.get() {
+				let client_width = scroll_element.client_width() as f64;
+				let current_pos = scroll_element.scroll_left() as f64;
+				let desired_pos = current_pos - client_width;
+
+				if let Some(first_tile) = scroll_element.first_element_child() {
+					let tile_width = first_tile.client_width() as f64;
+					let scroll_pos = desired_pos + (tile_width - (desired_pos % tile_width)) + 15.0;
+					scroll_element.scroll_to_with_x_and_y(scroll_pos, 0.0);
+				} else {
+					warn!("Could not get first tile to scroll left");
+					// Fall back to scrolling by the client width if we can't get the tile width
+					scroll_element.scroll_to_with_x_and_y(desired_pos, 0.0);
+				}
+			} else {
+				warn!("Could not get scroll element to scroll left");
+			}
+		};
+
+		let scroll_right = move |_| {
+			if let Some(scroll_element) = list_ref.get() {
+				let client_width = scroll_element.client_width() as f64;
+				let current_pos = scroll_element.scroll_left() as f64;
+				let desired_pos = current_pos + client_width;
+				
+				if let Some(first_tile) = scroll_element.first_element_child() {
+					let tile_width = first_tile.client_width() as f64;
+					let scroll_pos = desired_pos - (desired_pos % tile_width) + 15.0;
+					scroll_element.scroll_to_with_x_and_y(scroll_pos, 0.0);
+				} else {
+					warn!("Could not get first tile to scroll right");
+					// Fall back to scrolling by the client width if we can't get the tile width
+					scroll_element.scroll_to_with_x_and_y(desired_pos, 0.0);
+				}
+			} else {
+				warn!("Could not get scroll element to scroll right");
+			}
+		};
+
 		view! {
 			<div class="dashboard-tile-row">
-				<h2>{self.title}</h2>
-				<ul>
+				<div class="dashboard-tile-row-title-row">
+					<h2>{self.title}</h2>
+					<div class="dashboard-tile-row-scroll-btn">
+						<button on:click=scroll_left tabindex=-1>
+							<Icon class="dashboard-tile-row-scroll" icon=icondata::FiChevronLeft />
+						</button>
+						<button on:click=scroll_right tabindex=-1>
+							<Icon class="dashboard-tile-row-scroll" icon=icondata::FiChevronRight />
+						</button>
+					</div>
+				</div>
+				<ul _ref={list_ref}>
 				{self.tiles.into_iter().map(|tile_info| {
 					view! {
 						<li>
diff --git a/style/dashboard_row.scss b/style/dashboard_row.scss
index 2eb1041..1dea8d9 100644
--- a/style/dashboard_row.scss
+++ b/style/dashboard_row.scss
@@ -1,6 +1,37 @@
 .dashboard-tile-row {
+	.dashboard-tile-row-title-row {
+		display: flex;
+
+		.dashboard-tile-row-scroll-btn {
+			margin-left: auto;
+			margin-top: auto;
+			margin-bottom: auto;
+
+			button {
+				background-color: transparent;
+				border: none;
+				
+				.dashboard-tile-row-scroll {
+					color: $text-controls-color;
+					width: 2.5rem;
+					height: 2.5rem;
+				}
+				
+				.dashboard-tile-row-scroll:hover {
+					color: $controls-hover-color;
+				}
+				
+				.dashboard-tile-row-scroll:active {
+					color: $controls-click-color;
+				}
+			}
+		}
+	}
+
 	ul {
 		display: flex;
+		overflow-x: hidden;
+		scroll-behavior: smooth;
 
 		li {
 			list-style-type: none;