Show more relevant info for teachers on course cards

app/assets/javascripts/components/loading_bar.ts

@@ -0,0 +1,39 @@
+import { html, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators.js";
+import { ShadowlessLitElement } from "components/shadowless_lit_element";
+import { searchQuery } from "search";
+
+/**
+ * This component represents a loading bar.
+ * It will be triggered by search
+ *
+ * @element d-loading-bar
+ */
+@customElement("d-loading-bar")
+export class LoadingBar extends ShadowlessLitElement {
+    @property({ type: Boolean, state: true })
+    loading = false;
+
+    constructor() {
+        super();
+        searchQuery.loadingBars.push(this);
+    }
+
+    show(): void {
+        this.loading = true;
+    }
+
+    hide(): void {
+        this.loading = false;
+    }
+
+    render(): TemplateResult {
+        return html`
+            <div class="dodona-progress dodona-progress-indeterminate" style="visibility: ${this.loading ? "visible" : "hidden"};">
+                <div class="progressbar bar bar1" style="width: 0%;"></div>
+                <div class="bufferbar bar bar2" style="width: 100%;"></div>
+                <div class="auxbar bar bar3" style="width: 0%;"></div>
+            </div>
+        `;
+    }
+}

app/assets/javascripts/components/progress_bar.ts

@@ -0,0 +1,63 @@
+import { html, TemplateResult } from "lit";
+import { customElement, property } from "lit/decorators.js";
+import { ShadowlessLitElement } from "components/shadowless_lit_element";
+import { initTooltips, ready } from "util.js";
+
+/**
+ * This component displays a progress bar consisting of consecutive divs
+ * The divs are scaled according to the given values
+ * The divs have an opacity according to their index
+ *
+ * @element d-progress-bar
+ *
+ * @prop {number[]} values - Pass the data as an array.
+ * @prop {string} titleKey - The key of the title to be displayed in the tooltip.
+ */
+@customElement("d-progress-bar")
+export class ProgressBar extends ShadowlessLitElement {
+    @property({ type: Array })
+    values: Array<number>;
+
+    @property({ type: String, attribute: "title-key" })
+    titleKey: string;
+
+    get valuesSum(): number {
+        return Object.values(this.values).reduce((a, b) => a + b, 0);
+    }
+
+    private getWidth(value: number): number {
+        return 100 * value / this.valuesSum;
+    }
+
+    private getOpacity(key: number): number {
+        return (key / (this.values.length - 1)) * 0.8 + 0.2;
+    }
+
+    private getTitle(value: number, index: number): string {
+        return I18n.t(this.titleKey + I18n.t(this.titleKey + ".key", index), { index: index, smart_count: value });
+    }
+
+    updated(changedProperties: Map<string, any>): void {
+        initTooltips(this);
+        super.updated(changedProperties);
+    }
+
+    constructor() {
+        super();
+        // Reload when I18n is available
+        ready.then(() => this.requestUpdate());
+    }
+
+    private renderBar(value: number, index: number): TemplateResult {
+        return html`<div
+            class="bar"
+            style="width: ${this.getWidth(value)}%; opacity: ${this.getOpacity(index)}; "
+            title=${this.getTitle(value, index)}
+            data-bs-toggle='tooltip'>
+            </div>`;
+    }
+
+    render(): TemplateResult[] {
+        return this.values.map( (v, i) => this.renderBar(v, i)).reverse();
+    }
+}

app/assets/javascripts/i18n/i18n.ts

@@ -28,6 +28,12 @@ export class I18n extends Polyglot {
         }
     }
 
+    constructor() {
+        super();
+        // set default locale, avoids a lot of errors when the locale is not yet set
+        this.locale = "en";
+    }
+
     get locale(): string {
         return super.locale();
     }

app/assets/javascripts/i18n/translations.json

@@ -261,6 +261,13 @@
       "no_selection": "You must select at least one item before being able to download solutions.",
       "options": "Options",
       "programming_languages": "Programming Languages",
+      "progress_bar": {
+        "series-admin-progress": {
+          "key": ".singular |||| .plural",
+          "plural": "One user has completed %{index} activities |||| %{smart_count} users have completed %{index} activities",
+          "singular": "One user has completed one activity |||| %{smart_count} users have completed one activity"
+        }
+      },
       "question": {
         "state": {
           "answered": "Answered",
@@ -709,6 +716,13 @@
       "no_selection": "Er moet ten minste één iets gekozen worden om oplossingen te kunnen downloaden.",
       "options": "Opties",
       "programming_languages": "Programmeertalen",
+      "progress_bar": {
+        "series-admin-progress": {
+          "key": ".singular |||| .plural",
+          "plural": "Eén gebruiker heeft %{index} oefeningen correct opgelost |||| %{smart_count} gebruikers hebben %{index} oefeningen correct opgelost",
+          "singular": "Eén gebruiker heeft één oefening correct opgelost |||| %{smart_count} gebruikers hebben één oefening correct opgelost"
+        }
+      },
       "question": {
         "state": {
           "answered": "Beantwoord",

app/assets/javascripts/search.ts

@@ -1,5 +1,6 @@
 import { createDelayer, fetch, getURLParameter, updateArrayURLParameter, updateURLParameter } from "util.js";
 import { InactiveTimeout } from "auto_reload";
+import { LoadingBar } from "components/loading_bar";
 const RELOAD_SECONDS = 2;
 
 
@@ -56,6 +57,7 @@ export class SearchQuery {
     arrayQueryParams: QueryParameters<string[]> = new QueryParameters<string[]>();
     queryParams: QueryParameters<string> = new QueryParameters<string>();
     localStorageKey?: string;
+    loadingBars: LoadingBar[] = [];
 
     setRefreshElement(refreshElement: string): void {
         this.refreshElement = refreshElement;
@@ -180,7 +182,7 @@ export class SearchQuery {
         const url = this.addParametersToUrl();
         const localIndex = ++this.searchIndex;
 
-        this.updateProgressFilterVisibility("visible");
+        this.loadingBars.forEach(bar => bar.show());
         fetch(updateURLParameter(url, "format", "js"), {
             headers: {
                 "accept": "text/javascript"
@@ -193,7 +195,7 @@ export class SearchQuery {
                     this.appliedIndex = localIndex;
                     eval(data);
                 }
-                this.updateProgressFilterVisibility("hidden");
+                this.loadingBars.forEach(bar => bar.hide());
 
                 // if there is local storage key => update the value to reuse later
                 if (this.localStorageKey) {
@@ -203,12 +205,6 @@ export class SearchQuery {
             });
     }
 
-    updateProgressFilterVisibility(state: string): void {
-        if (document.getElementById("progress-filter")) {
-            document.getElementById("progress-filter").style.visibility = state;
-        }
-    }
-
     /**
      * fetch params from localStorage using the localStorageKey if present and apply them to the current url
      */

app/assets/javascripts/util.js

@@ -95,15 +95,22 @@ async function initCSRF() {
     });
 }
 
-function initTooltips() {
+function initTooltips(root = document) {
     // First remove dead tooltips
-    const tooltips = document.querySelectorAll(".tooltip");
+    const tooltips = root.querySelectorAll(".tooltip");
     for (const tooltip of tooltips) {
         tooltip.remove();
     }
 
     // Then reinitialize tooltips
-    $("[data-bs-toggle=\"tooltip\"]").tooltip({ container: "body", trigger: "hover" });
+    const elements = root.querySelectorAll("[data-bs-toggle=\"tooltip\"]");
+    for (const element of elements) {
+        const tooltip = window.bootstrap.Tooltip.getOrCreateInstance(element);
+        if (element.title) {
+            tooltip.setContent({ ".tooltip-inner": element.title });
+            element.removeAttribute("title");
+        }
+    }
 }
 
 function tooltip(target, message, disappearAfter=1000) {

app/assets/stylesheets/base.css.scss

@@ -89,6 +89,10 @@
   color: $info;
 }
 
+.colored-secondary {
+  color: $secondary;
+}
+
 figcaption {
   margin: 0 10px;
 }
@@ -110,3 +114,9 @@ svg {
   --svg-color-incorrect: #{$danger};
   --svg-color-warning: #{$warning};
 }
+
+.spread-line {
+  display: flex;
+  justify-content: space-between;
+  flex-direction: row;
+}

app/assets/stylesheets/components.css.scss

@@ -26,6 +26,7 @@
 @import "components/dropdown-filter.css.scss";
 @import "components/courselabel-edit.css.scss";
 @import "components/action-card.css.scss";
+@import "components/progress_bar.css.scss";
 
 .flex-spacer {
   flex-grow: 1;

app/assets/stylesheets/components/action-card.css.scss

@@ -20,12 +20,6 @@
       small {
         font-size: 65%;
       }
-
-      .spread-line {
-        display: flex;
-        justify-content: space-between;
-        flex-direction: row;
-      }
     }
 
     .card-title-icon {
@@ -57,6 +51,12 @@
     --progress-chart-color: var(--on-clickable-card-color);
   }
 
+  d-progress-bar {
+    .bar {
+      background-color: var(--on-clickable-card-color);
+    }
+  }
+
   &:hover,
   &:focus,
   &:active {

app/assets/stylesheets/components/card.css.scss

@@ -81,6 +81,15 @@ $card-supporting-text-padding: 16px;
   .progress-chart.colored-muted {
     --progress-chart-color: #{$on-primary-container};
   }
+
+  .series-icon {
+    --icon-color: #{$on-primary-container};
+    --icon-background-color: #{$primary-container};
+  }
+}
+
+.home-summary-card.course .card-title {
+  height: 111px;
 }
 
 a.card-title-link,

app/assets/stylesheets/components/progress_bar.css.scss

@@ -0,0 +1,9 @@
+d-progress-bar {
+  display: block;
+
+  .bar {
+    height: 8px;
+    display: inline-block;
+    background-color: $success;
+  }
+}

app/assets/stylesheets/components/table-toolbar.css.scss

@@ -102,19 +102,13 @@
 }
 
 .dodona-progress > .progressbar {
-  background-color: $progress-bar-bg;
+  background-color: $on-secondary-container;
   z-index: 1;
   left: 0;
 }
 
 .dodona-progress > .bufferbar {
-  background-image:
-    linear-gradient(
-      to right,
-      rgba(255, 255, 255, 0.7),
-      rgba(255, 255, 255, 0.7)
-    ),
-    linear-gradient(to right, $secondary, $secondary);
+  background-color: $secondary-container;
   z-index: 0;
   left: 0;
 }
@@ -125,17 +119,12 @@
 
 .dodona-progress.dodona-progress-indeterminate > .bar1,
 .dodona-progress.dodona-progress-indeterminate > .bar3 {
-  background-color: $progress-bar-bg;
+  background-color: $on-secondary-container;
   animation-duration: 2s;
   animation-iteration-count: infinite;
   animation-timing-function: linear;
 }
 
-.mdl-progress.mdl-progress-indeterminate > .bar3 {
-  background-image: none;
-  animation-name: indeterminate2;
-}
-
 .dodona-progress.dodona-progress-indeterminate > .bar1 {
   animation-name: indeterminate1;
 }
@@ -156,21 +145,3 @@
     width: 0%;
   }
 }
-
-@keyframes indeterminate2 {
-  0%,
-  50% {
-    left: 0%;
-    width: 0%;
-  }
-
-  75% {
-    left: 0%;
-    width: 25%;
-  }
-
-  100% {
-    left: 100%;
-    width: 0%;
-  }
-}

app/assets/stylesheets/material_icons.css.scss

@@ -43,6 +43,10 @@
   line-height: 74px;
 }
 
+.mdi.mdi-vam::before {
+  vertical-align: middle;
+}
+
 .visible-xs.mdi::before {
   margin-top: 12px;
 }

app/controllers/pages_controller.rb

@@ -19,7 +19,7 @@ def home
       @year = params[:year] || @years.max
       @courses = courses.select { |c| c.year == @year }
       @favorite_courses = course_memberships.select(&:favorite).map(&:course)
-      @homepage_series = courses.map { |c| c.homepage_series(0) }.flatten.sort_by(&:deadline)
+      @homepage_series = courses.map { |c| c.homepage_series(current_user, 0) }.flatten.sort_by(&:deadline)
 
       @jump_back_in = current_user.jump_back_in
     else