UI: свайпы вкладок и навигация тредов

shine-UI/js/pages/channel-thread-view.js

@@ -10,7 +10,7 @@ import {
   showToast,
   softHaptic,
 } from '../services/channels-ux.js';
-import { navigateBack } from '../router.js';
+import { getPreviousTrackedPath, parseRouteFromPath } from '../router.js';
 import { renderUserAvatar } from '../components/avatar-image.js';
 import { markArweaveAttachmentPlaced, openArweaveAttachmentManager } from '../components/arweave-attachment-manager.js';
 import {
@@ -332,6 +332,25 @@ function buildChannelRouteFromThread(selector, resolvedChannelLabel = '') {
   });
 }
 
+function resolveThreadBackRoute(selector, resolvedChannelLabel = '') {
+  return buildChannelRouteFromThread(selector, resolvedChannelLabel) || 'channels-list';
+}
+
+function resolveThreadPreviousInChannels(selector, resolvedChannelLabel = '') {
+  const previousPath = String(getPreviousTrackedPath() || '').trim();
+  if (previousPath) {
+    const previousRoute = parseRouteFromPath(previousPath);
+    const previousPageId = String(previousRoute?.pageId || '').trim();
+    if (
+      previousPageId === 'channel-thread-view'
+      || previousPageId === 'channel-view'
+    ) {
+      return previousPath;
+    }
+  }
+  return resolveThreadBackRoute(selector, resolvedChannelLabel);
+}
+
 function buildTargetFromNode(node) {
   const blockchainName = String(node?.authorBlockchainName || '').trim();
   const blockNumber = Number(node?.messageRef?.blockNumber);
@@ -1118,6 +1137,7 @@ export function render({ navigate, route, chrome }) {
   const selector = parseThreadSelector(route);
   const channelDisplayName = resolveChannelDisplayName(selector?.channel);
   const routeKey = `${selector?.message?.blockchainName || ''}:${selector?.message?.blockNumber || ''}:${selector?.message?.blockHash || ''}`;
+  let activeResolvedChannelLabel = channelDisplayName;
 
   const screen = document.createElement('section');
   screen.className = 'stack channels-screen channels-screen--thread';
@@ -1126,13 +1146,28 @@ export function render({ navigate, route, chrome }) {
 
   const header = renderHeader({
     title: '',
-    leftAction: { label: '<', onClick: () => navigateBack() },
-    rightActions: [{ label: 'Тред в канале: ...', onClick: () => {} }],
+    leftAction: { label: '<', onClick: () => navigate(resolveThreadPreviousInChannels(selector, activeResolvedChannelLabel)) },
+    rightActions: [],
   });
-  const threadHeaderButton = header.querySelector('.header-actions .icon-btn');
-  if (threadHeaderButton) {
-    threadHeaderButton.classList.add('channel-header-route-btn');
+  header.classList.add('channel-thread-topbar');
+  const headerLeft = header.querySelector('.header-left');
+  let threadHeaderButton = null;
+  if (headerLeft) {
+    const channelsListButton = document.createElement('button');
+    channelsListButton.type = 'button';
+    channelsListButton.className = 'icon-btn';
+    channelsListButton.textContent = '↑';
+    channelsListButton.title = 'К списку каналов';
+    channelsListButton.setAttribute('aria-label', 'К списку каналов');
+    channelsListButton.addEventListener('click', () => navigate('channels-list'));
+    headerLeft.append(channelsListButton);
+
+    threadHeaderButton = document.createElement('button');
+    threadHeaderButton.type = 'button';
+    threadHeaderButton.className = 'icon-btn channel-header-route-btn';
+    threadHeaderButton.textContent = 'Тред в канале: ...';
     threadHeaderButton.disabled = true;
+    headerLeft.append(threadHeaderButton);
   }
   chrome?.setTopbar(header);
 
@@ -1418,6 +1453,7 @@ export function render({ navigate, route, chrome }) {
       if (!resolvedChannelLabel && selector?.channel?.ownerBlockchainName && selector?.channel?.channelRootBlockNumber != null) {
         resolvedChannelLabel = await resolveChannelDisplayNameFromServer(selector.channel);
       }
+      activeResolvedChannelLabel = resolvedChannelLabel;
       const fallbackChannel = String(selector?.channel?.ownerBlockchainName || '').trim() || 'неизвестно';
       const resolvedChannelTitle = resolvedChannelLabel || fallbackChannel;
       if (threadHeaderButton) {