fix mobile terminal drawer sizing (#799)

packages/client/src/components/hermes/chat/DrawerPanel.vue

@@ -86,9 +86,10 @@ function handleClose() {
 .drawer-panel {
   position: fixed;
   top: 0;
-  right: -900px;
-  width: 900px;
-  height: 100vh;
+  right: min(-1180px, -88vw);
+  width: min(1180px, 88vw);
+  height: calc(100 * var(--vh));
+  max-height: calc(100 * var(--vh));
   background: $bg-card;
   box-shadow: -2px 0 8px rgba(0, 0, 0, 0.15);
   display: flex;
@@ -180,5 +181,3 @@ function handleClose() {
   overflow: auto;
 }
 </style>
-
-

packages/client/src/components/hermes/chat/TerminalPanel.vue

@@ -103,6 +103,9 @@ let activeFitAddon: FitAddon | null = null;
 let resizeObserver: ResizeObserver | null = null;
 let reconnectAttempts = 0;
 const MAX_RECONNECT_ATTEMPTS = 3;
+let touchScrollLastY: number | null = null;
+let touchScrollRemainder = 0;
+const TOUCH_SCROLL_LINE_PX = 18;
 
 // ─── Computed ──────────────────────────────────────────────────
 
@@ -356,6 +359,35 @@ function sendResize() {
   } catch {}
 }
 
+function handleTerminalTouchStart(event: TouchEvent) {
+  if (event.touches.length !== 1) {
+    touchScrollLastY = null;
+    touchScrollRemainder = 0;
+    return;
+  }
+  touchScrollLastY = event.touches[0].clientY;
+  touchScrollRemainder = 0;
+}
+
+function handleTerminalTouchMove(event: TouchEvent) {
+  if (!activeTerm || event.touches.length !== 1 || touchScrollLastY === null) return;
+  const nextY = event.touches[0].clientY;
+  touchScrollRemainder += touchScrollLastY - nextY;
+  touchScrollLastY = nextY;
+
+  const lines = Math.trunc(touchScrollRemainder / TOUCH_SCROLL_LINE_PX);
+  if (lines === 0) return;
+
+  activeTerm.scrollLines(lines);
+  touchScrollRemainder -= lines * TOUCH_SCROLL_LINE_PX;
+  event.preventDefault();
+}
+
+function handleTerminalTouchEnd() {
+  touchScrollLastY = null;
+  touchScrollRemainder = 0;
+}
+
 // ─── Theme ───────────────────────────────────────────────────────
 
 function applyTheme(themeName: string) {
@@ -517,7 +549,15 @@ onUnmounted(() => {
         </div>
       </header>
       <div class="terminal-container">
-        <div ref="terminalRef" class="terminal-xterm" :style="{ backgroundColor: terminalBg }" />
+        <div
+          ref="terminalRef"
+          class="terminal-xterm"
+          :style="{ backgroundColor: terminalBg }"
+          @touchstart="handleTerminalTouchStart"
+          @touchmove="handleTerminalTouchMove"
+          @touchend="handleTerminalTouchEnd"
+          @touchcancel="handleTerminalTouchEnd"
+        />
       </div>
     </div>
   </div>
@@ -798,4 +838,35 @@ onUnmounted(() => {
     display: none !important;
   }
 }
+
+@media (max-width: $breakpoint-mobile) {
+  .terminal-panel-drawer {
+    height: calc(100 * var(--vh));
+    max-height: calc(100 * var(--vh));
+  }
+
+  .terminal-main {
+    min-height: 0;
+  }
+
+  .terminal-container {
+    margin-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
+  }
+
+  .terminal-xterm {
+    :deep(.xterm-viewport),
+    :deep(.xterm-scrollable-element) {
+      touch-action: pan-y;
+      -webkit-overflow-scrolling: touch;
+      overscroll-behavior: contain;
+      scrollbar-width: thin !important;
+    }
+
+    :deep(.xterm-viewport::-webkit-scrollbar),
+    :deep(.xterm-scrollable-element::-webkit-scrollbar) {
+      display: block !important;
+      width: 6px !important;
+    }
+  }
+}
 </style>

packages/client/src/views/hermes/TerminalView.vue

@@ -245,6 +245,9 @@ let activeTerm: Terminal | null = null;
 let activeFitAddon: FitAddon | null = null;
 let resizeObserver: ResizeObserver | null = null;
 let mobileQuery: MediaQueryList | null = null;
+let touchScrollLastY: number | null = null;
+let touchScrollRemainder = 0;
+const TOUCH_SCROLL_LINE_PX = 18;
 
 // ─── Computed ──────────────────────────────────────────────────
 
@@ -495,6 +498,35 @@ function sendResize() {
   } catch {}
 }
 
+function handleTerminalTouchStart(event: TouchEvent) {
+  if (event.touches.length !== 1) {
+    touchScrollLastY = null;
+    touchScrollRemainder = 0;
+    return;
+  }
+  touchScrollLastY = event.touches[0].clientY;
+  touchScrollRemainder = 0;
+}
+
+function handleTerminalTouchMove(event: TouchEvent) {
+  if (!activeTerm || event.touches.length !== 1 || touchScrollLastY === null) return;
+  const nextY = event.touches[0].clientY;
+  touchScrollRemainder += touchScrollLastY - nextY;
+  touchScrollLastY = nextY;
+
+  const lines = Math.trunc(touchScrollRemainder / TOUCH_SCROLL_LINE_PX);
+  if (lines === 0) return;
+
+  activeTerm.scrollLines(lines);
+  touchScrollRemainder -= lines * TOUCH_SCROLL_LINE_PX;
+  event.preventDefault();
+}
+
+function handleTerminalTouchEnd() {
+  touchScrollLastY = null;
+  touchScrollRemainder = 0;
+}
+
 // ─── Theme ───────────────────────────────────────────────────────
 
 function applyTheme(themeName: string) {
@@ -689,7 +721,15 @@ onUnmounted(() => {
         </div>
       </header>
       <div class="terminal-container">
-        <div ref="terminalRef" class="terminal-xterm" :style="{ backgroundColor: terminalBg }" />
+        <div
+          ref="terminalRef"
+          class="terminal-xterm"
+          :style="{ backgroundColor: terminalBg }"
+          @touchstart="handleTerminalTouchStart"
+          @touchmove="handleTerminalTouchMove"
+          @touchend="handleTerminalTouchEnd"
+          @touchcancel="handleTerminalTouchEnd"
+        />
       </div>
     </div>
   </div>
@@ -980,6 +1020,19 @@ onUnmounted(() => {
 // ─── Mobile ─────────────────────────────────────────────────────
 
 @media (max-width: $breakpoint-mobile) {
+  .terminal-panel {
+    height: calc(100 * var(--vh));
+    max-height: calc(100 * var(--vh));
+  }
+
+  .terminal-main {
+    min-height: 0;
+  }
+
+  .terminal-container {
+    margin-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
+  }
+
   .session-close-btn {
     display: flex;
   }
@@ -1011,6 +1064,20 @@ onUnmounted(() => {
     left: 0;
     right: 0;
     bottom: 0;
+
+    :deep(.xterm-viewport),
+    :deep(.xterm-scrollable-element) {
+      touch-action: pan-y;
+      -webkit-overflow-scrolling: touch;
+      overscroll-behavior: contain;
+      scrollbar-width: thin !important;
+    }
+
+    :deep(.xterm-viewport::-webkit-scrollbar),
+    :deep(.xterm-scrollable-element::-webkit-scrollbar) {
+      display: block !important;
+      width: 6px !important;
+    }
   }
 }
 </style>