chore(breadcrumb_badges/backlinks): display list of backlinks on click

apps/client/src/widgets/BreadcrumbBadges.css

@@ -37,4 +37,16 @@
             text-decoration: none;
         }
     }
+
+    .dropdown {
+        &.dropdown-backlinks-badge .dropdown-menu {
+            min-width: 500px;
+        }
+
+        .btn {
+            border: 0;
+            margin: 0;
+            padding: 0;
+        }
+    }
 }

apps/client/src/widgets/BreadcrumbBadges.tsx

@@ -5,6 +5,8 @@ import { ComponentChildren, MouseEventHandler } from "preact";
 import { useRef } from "preact/hooks";
 
 import { t } from "../services/i18n";
+import { BacklinksList } from "./FloatingButtonsDefinitions";
+import Dropdown, { DropdownProps } from "./react/Dropdown";
 import { useIsNoteReadOnly, useNoteContext, useStaticTooltip } from "./react/hooks";
 import Icon from "./react/Icon";
 import { useShareInfo } from "./shared_info";
@@ -28,21 +30,19 @@ function ReadOnlyBadge() {
     if (isTemporarilyEditable) {
         return <Badge
             icon="bx bx-lock-open-alt"
+            text={t("breadcrumb_badges.read_only_temporarily_disabled")}
             tooltip={t("breadcrumb_badges.read_only_temporarily_disabled_description")}
             className="temporarily-editable-badge"
             onClick={() => enableEditing(false)}
-        >
-            {t("breadcrumb_badges.read_only_temporarily_disabled")}
-        </Badge>;
+        />;
     } else if (isReadOnly) {
         return <Badge
             icon="bx bx-lock-alt"
+            text={isExplicitReadOnly ? t("breadcrumb_badges.read_only_explicit") : t("breadcrumb_badges.read_only_auto")}
             tooltip={isExplicitReadOnly ? t("breadcrumb_badges.read_only_explicit_description") : t("breadcrumb_badges.read_only_auto_description")}
             className="read-only-badge"
             onClick={() => enableEditing()}
-        >
-            {isExplicitReadOnly ? t("breadcrumb_badges.read_only_explicit") : t("breadcrumb_badges.read_only_auto")}
-        </Badge>;
+        />;
     }
 }
 
@@ -53,28 +53,45 @@ function ShareBadge() {
     return (link &&
         <Badge
             icon={isSharedExternally ? "bx bx-world" : "bx bx-link"}
+            text={isSharedExternally ? t("breadcrumb_badges.shared_publicly") : t("breadcrumb_badges.shared_locally")}
             tooltip={isSharedExternally ?
                 t("breadcrumb_badges.shared_publicly_description", { link }) :
                 t("breadcrumb_badges.shared_locally_description", { link })
             }
             className="share-badge"
             href={linkHref}
-        >
-            {isSharedExternally ? t("breadcrumb_badges.shared_publicly") : t("breadcrumb_badges.shared_locally")}
-        </Badge>
+        />
     );
 }
 
 function BacklinksBadge() {
+    const { note } = useNoteContext();
     const count = 1;
-    return (
-        <Badge className="backlinks-badge" icon="bx bx-revision" tooltip={t("breadcrumb_badges.backlinks_description", { count })}>
-            {t("breadcrumb_badges.backlinks", { count })}
-        </Badge>
+    return (note && count > 0 &&
+        <BadgeWithDropdown
+            className="backlinks-badge backlinks-widget"
+            icon="bx bx-revision"
+            text={t("breadcrumb_badges.backlinks", { count })}
+            tooltip={t("breadcrumb_badges.backlinks_description", { count })}
+            dropdownOptions={{
+                dropdownContainerClassName: "backlinks-items"
+            }}
+        >
+            <BacklinksList note={note} />
+        </BadgeWithDropdown>
     );
 }
 
-function Badge({ icon, className, children, tooltip, onClick, href }: { icon?: string, className: string, tooltip: string, children: ComponentChildren, onClick?: MouseEventHandler<HTMLDivElement>, href?: string }) {
+interface BadgeProps {
+    text: string;
+    icon?: string;
+    className: string;
+    tooltip?: string;
+    onClick?: MouseEventHandler<HTMLDivElement>;
+    href?: string;
+}
+
+function Badge({ icon, className, text, tooltip, onClick, href }: BadgeProps) {
     const containerRef = useRef<HTMLDivElement>(null);
     useStaticTooltip(containerRef, {
         placement: "bottom",
@@ -86,7 +103,7 @@ function Badge({ icon, className, children, tooltip, onClick, href }: { icon?: s
 
     const content = <>
         {icon && <><Icon icon={icon} />&nbsp;</>}
-        {children}
+        {text}
     </>;
 
     return (
@@ -99,3 +116,22 @@ function Badge({ icon, className, children, tooltip, onClick, href }: { icon?: s
         </div>
     );
 }
+
+function BadgeWithDropdown({ children, tooltip, className, dropdownOptions, ...props }: BadgeProps & {
+    children: ComponentChildren,
+    dropdownOptions?: Partial<DropdownProps>
+}) {
+    return (
+        <Dropdown
+            className={`dropdown-${className}`}
+            text={<Badge className={className} {...props} />}
+            noDropdownListStyle
+            noSelectButtonStyle
+            hideToggleArrow
+            title={tooltip}
+            titlePosition="bottom"
+            dropdownOptions={{ popperConfig: { placement: "bottom" } }}
+            {...dropdownOptions}
+        >{children}</Dropdown>
+    );
+}

apps/client/src/widgets/FloatingButtonsDefinitions.tsx

@@ -355,7 +355,7 @@ function Backlinks({ note, isDefaultViewMode }: FloatingButtonContext) {
     );
 }
 
-function BacklinksList({ note }: { note: FNote }) {
+export function BacklinksList({ note }: { note: FNote }) {
     const [ backlinks, setBacklinks ] = useState<BacklinksResponse>([]);
 
     function refresh() {