feat(frontend): open sidebar media on click, unbreak long-press menus

frontend/src/lib/components/MessageMedia.svelte

@@ -179,7 +179,7 @@
   {/snippet}
   {#snippet menu()}
     <ContextMenuItem icon="open-in-new-tab" onselect={onopen}
-      >Открыть</ContextMenuItem
+      >Открыть на весь экран</ContextMenuItem
     >
     <ContextMenuItem
       icon="recent"

frontend/src/lib/components/profile/SharedMedia.svelte

@@ -2,8 +2,16 @@
   import { untrack } from "svelte";
   import { goto } from "$app/navigation";
   import { getChatMedia } from "$lib/api/endpoints";
-  import { type InlineMedia, loadMediaItem, visualKind } from "$lib/api/media";
+  import {
+    type InlineMedia,
+    loadMediaItem,
+    type ViewerItem,
+    visualKind,
+  } from "$lib/api/media";
   import type { MediaView } from "$lib/api/types";
+  import MediaViewer from "$lib/components/MediaViewer.svelte";
+  import ContextMenu from "$lib/components/ui/ContextMenu.svelte";
+  import ContextMenuItem from "$lib/components/ui/ContextMenuItem.svelte";
   import EmptyState from "$lib/components/ui/EmptyState.svelte";
   import Icon from "$lib/components/ui/Icon.svelte";
   import Spinner from "$lib/components/ui/Spinner.svelte";
@@ -12,6 +20,7 @@
   import { poster } from "$lib/media/poster";
   import { accounts } from "$lib/stores/accounts.svelte";
   import { ui } from "$lib/stores/ui.svelte";
+  import { isMobile } from "$lib/viewport";
 
   interface Props {
     chatId: number;
@@ -26,9 +35,20 @@
   let items = $state<MediaView[]>([]);
   let loading = $state(false);
   let done = $state(false);
+  let viewerOpen = $state(false);
+  let viewerIndex = $state(0);
   const previews = $state<Record<number, InlineMedia>>({});
   let token = 0;
 
+  const viewerItems = $derived<ViewerItem[]>(
+    items.map((item) => ({
+      messageId: item.message_id,
+      mediaId: item.id,
+      kind: item.kind,
+      downloaded: item.downloaded,
+    }))
+  );
+
   async function loadMore() {
     if (loading || done) {
       return;
@@ -110,9 +130,17 @@
     };
   });
 
-  function open(messageId: number) {
+  function open(index: number) {
+    viewerIndex = index;
+    viewerOpen = true;
+  }
+
+  function jump(messageId: number) {
     ui.requestJump(chatId, messageId);
     goto(`/app/${chatId}`);
+    if (isMobile()) {
+      ui.closePanel();
+    }
   }
 
   function preview(item: MediaView): InlineMedia | undefined {
@@ -128,10 +156,21 @@
   {/if}
 {:else if layout === "grid"}
   <div class="grid">
-    {#each items as item (item.id)}
-      <button type="button" class="tile" onclick={() => open(item.message_id)}>
+    {#each items as item, index (item.id)}
+      <ContextMenu>
+        {#snippet children({ props })}
+          <button
+            {...props}
+            type="button"
+            class="tile"
+            tabindex="0"
+            onclick={() => open(index)}
+          >
             {#if preview(item)?.state === "ready"}
-          {@const ready = preview(item) as Extract<InlineMedia, { state: "ready" }>}
+              {@const ready = preview(item) as Extract<
+                InlineMedia,
+                { state: "ready" }
+              >}
               {#if visualKind(item.kind) === "video"}
                 <video
                   src={ready.url}
@@ -150,13 +189,30 @@
               >
             {/if}
           </button>
+        {/snippet}
+        {#snippet menu()}
+          <ContextMenuItem icon="open-in-new-tab" onselect={() => open(index)}
+            >Открыть на весь экран</ContextMenuItem
+          >
+          <ContextMenuItem icon="reply" onselect={() => jump(item.message_id)}
+            >Перейти к сообщению</ContextMenuItem
+          >
+        {/snippet}
+      </ContextMenu>
     {/each}
   </div>
 {:else}
   <ul class="list">
-    {#each items as item (item.id)}
+    {#each items as item, index (item.id)}
       <li>
-        <button type="button" onclick={() => open(item.message_id)}>
+        <ContextMenu>
+          {#snippet children({ props })}
+            <button
+              {...props}
+              type="button"
+              tabindex="0"
+              onclick={() => open(index)}
+            >
               <span class="file-icon"><Icon name="document" /></span>
               <span class="meta">
                 <span class="name">{mediaKindLabel(item.kind)}</span>
@@ -168,6 +224,16 @@
                 </span>
               </span>
             </button>
+          {/snippet}
+          {#snippet menu()}
+            <ContextMenuItem icon="open-in-new-tab" onselect={() => open(index)}
+              >Открыть</ContextMenuItem
+            >
+            <ContextMenuItem icon="reply" onselect={() => jump(item.message_id)}
+              >Перейти к сообщению</ContextMenuItem
+            >
+          {/snippet}
+        </ContextMenu>
       </li>
     {/each}
   </ul>
@@ -184,6 +250,13 @@
   </button>
 {/if}
 
+<MediaViewer
+  bind:open={viewerOpen}
+  bind:index={viewerIndex}
+  {chatId}
+  items={viewerItems}
+/>
+
 <style lang="scss">
   .center {
     display: flex;

frontend/src/lib/components/ui/ContextMenu.svelte

@@ -8,12 +8,41 @@
   }
 
   const { children, menu }: Props = $props();
+
+  type PointerHandler = (event: PointerEvent) => void;
+
+  let open = $state(false);
+  let suppressClick = false;
+
+  function triggerProps(props: Record<string, unknown>) {
+    const onpointerdown = props.onpointerdown as PointerHandler;
+    const onpointerup = props.onpointerup as PointerHandler;
+    return {
+      ...props,
+      onpointerdown(event: PointerEvent) {
+        suppressClick = false;
+        event.stopPropagation();
+        onpointerdown(event);
+      },
+      onpointerup(event: PointerEvent) {
+        suppressClick = open && event.pointerType !== "mouse";
+        onpointerup(event);
+      },
+      onclickcapture(event: MouseEvent) {
+        if (suppressClick) {
+          suppressClick = false;
+          event.preventDefault();
+          event.stopPropagation();
+        }
+      },
+    };
+  }
 </script>
 
-<ContextMenu.Root>
+<ContextMenu.Root bind:open>
   <ContextMenu.Trigger>
     {#snippet child({ props })}
-      {@render children({ props })}
+      {@render children({ props: triggerProps(props) })}
     {/snippet}
   </ContextMenu.Trigger>
   <ContextMenu.Portal>

frontend/src/lib/styles/global.scss

@@ -153,6 +153,14 @@ html.theme-transition * {
   animation: ripple-animation 700ms;
 }
 
+@media (pointer: coarse) {
+  [data-context-menu-trigger] {
+    -webkit-touch-callout: none;
+    -webkit-user-select: none;
+    user-select: none;
+  }
+}
+
 .bg-menu-content {
   z-index: var(--z-portal-menu);
   min-width: 12rem;

frontend/src/lib/viewport.ts

@@ -0,0 +1,7 @@
+import { browser } from "$app/environment";
+
+const MOBILE_QUERY = "(max-width: 600px)";
+
+export function isMobile(): boolean {
+  return browser && window.matchMedia(MOBILE_QUERY).matches;
+}