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feat(chat): optimize performance and focus handling in chat UI

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This commit is contained in:
cogwheel
2025-12-20 14:02:27 +05:30
parent 97ace86b12
commit 61dc82d17c
2 changed files with 26 additions and 23 deletions
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19
lib/features/chat/views/chat_page.dart
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@@ -1570,16 +1570,14 @@ class _ChatPageState extends ConsumerState<ChatPage> {
height: 1.3,
);
// Keyboard visibility
final keyboardVisible = MediaQuery.of(context).viewInsets.bottom > 0;
// Keyboard visibility - use viewInsetsOf for more efficient partial subscription
final keyboardVisible = MediaQuery.viewInsetsOf(context).bottom > 0;
// Whether the messages list can actually scroll (avoids showing button when not needed)
final canScroll =
_scrollController.hasClients &&
_scrollController.position.maxScrollExtent > 0;
// Check if any message is currently streaming (for scroll button indicator)
final isStreamingAnyMessage = ref
.watch(chatMessagesProvider)
.any((msg) => msg.isStreaming);
// Use dedicated streaming provider to avoid iterating all messages on rebuild
final isStreamingAnyMessage = ref.watch(isChatStreamingProvider);
// On keyboard open, if already near bottom, auto-scroll to bottom to keep input visible
if (keyboardVisible && !_lastKeyboardVisible) {
@@ -1601,15 +1599,12 @@ class _ChatPageState extends ConsumerState<ChatPage> {
});
}
// Focus composer on app startup once
// Focus composer on app startup once (minimal delay for layout to settle)
if (!_didStartupFocus) {
_didStartupFocus = true;
WidgetsBinding.instance.addPostFrameCallback((_) {
Future.delayed(const Duration(milliseconds: 200), () {
if (!mounted) return;
final current = ref.read(inputFocusTriggerProvider);
ref.read(inputFocusTriggerProvider.notifier).set(current + 1);
});
if (!mounted) return;
ref.read(inputFocusTriggerProvider.notifier).increment();
});
}