Add cloud breadcrumbs and even out cloud cards

src/lib/components/FileViewer.svelte

@@ -6,6 +6,7 @@
     app,
     breadcrumbs,
     browseTo,
+    cloudBreadcrumbs,
     linkedDocument,
     linkedSpace,
     openCloudFolder,
@@ -53,6 +54,7 @@
   let menuAt = $state({ x: 0, y: 0 });
 
   const trail = $derived(breadcrumbs());
+  const cloudTrail = $derived(cloudBreadcrumbs());
 
   $effect(() => {
     if (app.scope === "cloud" && app.account) {
@@ -200,10 +202,10 @@
   <div
     class="group flex flex-col overflow-hidden rounded-lg border border-[var(--color-line)] bg-[var(--color-surface)] transition hover:border-[var(--color-accent)] hover:shadow-sm"
   >
-    {#if link && cloudThumbs[link.path]}
     <div
       class="flex h-24 items-center justify-center overflow-hidden border-b border-[var(--color-line)] bg-[var(--color-surface-muted)]"
     >
+      {#if link && cloudThumbs[link.path]}
         {#if cloudThumbs[link.path].kind === "svg"}
           <span
             class="flex w-full items-start justify-center bg-white p-1 [&_svg]:h-auto [&_svg]:w-full"
@@ -217,12 +219,18 @@
             class="h-full w-full object-contain"
           />
         {/if}
-      </div>
+      {:else}
+        <Icon
+          {icon}
+          class="text-3xl {link
+            ? 'text-[var(--color-accent)]'
+            : 'text-[var(--color-ink-muted)]'}"
+        />
       {/if}
+    </div>
 
     <div class="flex flex-col gap-2.5 p-3">
     <div class="flex items-start gap-2">
-      <Icon {icon} class="shrink-0 text-xl text-[var(--color-accent)]" />
       <div class="min-w-0 flex-1">
         <p class="truncate text-xs font-medium" {title}>{title}</p>
         <p class="truncate text-[10px] text-[var(--color-ink-muted)]">{meta}</p>
@@ -676,6 +684,33 @@
           {/if}
         </div>
 
+        {#if cloudTrail.length > 0}
+          <div class="mb-3 flex flex-wrap items-center gap-1 text-xs">
+            <button
+              class="rounded px-2 py-1 text-[var(--color-ink-muted)] transition hover:bg-[var(--color-surface)] hover:text-[var(--color-ink)]"
+              onclick={() => openCloudFolder(null)}
+            >
+              My Drive
+            </button>
+
+            {#each cloudTrail as folder, index}
+              <Icon
+                icon="ph:caret-right"
+                class="text-[10px] text-[var(--color-ink-muted)]"
+              />
+              <button
+                class="rounded px-2 py-1 transition hover:bg-[var(--color-surface)]
+                  {index === cloudTrail.length - 1
+                  ? 'font-medium'
+                  : 'text-[var(--color-ink-muted)] hover:text-[var(--color-ink)]'}"
+                onclick={() => openCloudFolder(folder.id)}
+              >
+                {folder.name}
+              </button>
+            {/each}
+          </div>
+        {/if}
+
         {#if app.cloudFolders.length > 0}
           <div
             class="mb-4 grid grid-cols-[repeat(auto-fill,minmax(210px,1fr))] gap-2"

src/lib/ts/state.svelte.ts

@@ -31,6 +31,7 @@ interface AppState {
   spaces: SpaceSummary[];
   cloudFolder: string | null | "shared";
   cloudFolders: CloudFolder[];
+  cloudFolderTree: CloudFolder[];
   cloudDocuments: CloudDocument[];
   cloudFiles: CloudFile[];
   cloudLoading: boolean;
@@ -65,6 +66,7 @@ export const app = $state<AppState>({
   spaces: [],
   cloudFolder: null,
   cloudFolders: [],
+  cloudFolderTree: [],
   cloudDocuments: [],
   cloudFiles: [],
   cloudLoading: false,
@@ -188,6 +190,7 @@ export async function refreshCloud() {
         api.cloudListSpaces(),
         api.cloudListFiles(app.cloudFolder),
       ]);
+      app.cloudFolderTree = folders;
       app.cloudFolders = folders.filter(
         (folder) => (folder.parent_id ?? null) === app.cloudFolder,
       );
@@ -202,6 +205,22 @@ export async function refreshCloud() {
   }
 }
 
+/** Trail from the drive root down to the folder being viewed. */
+export function cloudBreadcrumbs(): CloudFolder[] {
+  if (app.cloudFolder === "shared" || app.cloudFolder === null) return [];
+
+  const byId = new Map(app.cloudFolderTree.map((folder) => [folder.id, folder]));
+  const trail: CloudFolder[] = [];
+
+  let current = byId.get(app.cloudFolder);
+  while (current) {
+    trail.unshift(current);
+    current = current.parent_id ? byId.get(current.parent_id) : undefined;
+  }
+
+  return trail;
+}
+
 export async function openCloudFolder(id: string | null | "shared") {
   app.cloudFolder = id;
   await refreshCloud();