fix(chat): scope keyboard avoidance to Facebook IAB

2026-07-16 16:41:02 +08:00
parent aa801a3e18
commit 514297f469
4 changed files with 55 additions and 23 deletions
@@ -1,5 +1,6 @@
 export const CHAT_KEYBOARD_VISIBLE_THRESHOLD_PX = 80;
 export const CHAT_KEYBOARD_ZOOM_THRESHOLD = 1.05;
+export const CHAT_KEYBOARD_TARGET_GAP_PX = 8;
 export const CHAT_KEYBOARD_FALLBACK_RATIO = 0.42;
 export const CHAT_KEYBOARD_FALLBACK_MIN_PX = 260;
 export const CHAT_KEYBOARD_FALLBACK_MAX_PX = 380;
@@ -67,7 +68,10 @@ export function resolveChatKeyboardInset(

  return {
    keyboardVisible: true,
-    bottomInset: Math.min(maxInset, Math.round(occludedHeight)),
+    bottomInset: Math.min(
+      maxInset,
+      Math.round(occludedHeight + CHAT_KEYBOARD_TARGET_GAP_PX),
+    ),
    source:
      virtualKeyboardHeight >= visualViewportHeight
        ? "virtual-keyboard"
@@ -78,11 +82,13 @@ export function resolveChatKeyboardInset(
 export function resolveChatKeyboardFallbackInset(
  layoutHeight: number,
 ): number {
-  return Math.min(
+  const estimatedKeyboardHeight = Math.min(
    CHAT_KEYBOARD_FALLBACK_MAX_PX,
    Math.max(
      CHAT_KEYBOARD_FALLBACK_MIN_PX,
      Math.round(layoutHeight * CHAT_KEYBOARD_FALLBACK_RATIO),
    ),
  );
+
+  return estimatedKeyboardHeight + CHAT_KEYBOARD_TARGET_GAP_PX;
 }