Nem Update tabs_bloc.dart

[Madhuz02]

Feature Preview

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PR Checklist

• My code adheres to AppFlowy's Conventions
• I've listed at least one issue that this PR fixes in the description above.
• I've added a test(s) to validate changes in this PR, or this PR only contains semantic changes.
• All existing tests are passing.

Summary by Sourcery

Enhance tab opening in TabsBloc by debouncing rapid duplicate openPlugin events and clean up formatting in the file

Enhancements:

• Add deduplication logic to avoid opening the same plugin and view multiple times within a 500 ms window in TabsBloc
• Introduce tracking fields (_lastOpenedPluginId, _lastOpenedViewId, _lastOpenTime) and a configurable deduplication window

Chores:

• Remove extraneous whitespace and cleanup formatting in tabs_bloc.dart

[sourcery-ai]

Reviewer's Guide

The PR adds a deduplication mechanism to skip rapid repeated openPlugin events and cleans up tabs_bloc.dart by removing excessive blank lines and redundant whitespace across methods and imports.

Sequence diagram for deduplication in openPlugin event

sequenceDiagram
    participant TabsBloc
    participant Plugin
    participant ViewPB
    participant State
    actor User
    User->>TabsBloc: Triggers openPlugin(plugin, view)
    TabsBloc->>TabsBloc: Check if plugin and view match last opened
    TabsBloc->>TabsBloc: Check time since last open
    alt Within deduplication window
        TabsBloc-->>User: Ignore event (no action)
    else Outside deduplication window
        TabsBloc->>TabsBloc: Update _lastOpenedPluginId, _lastOpenedViewId, _lastOpenTime
        TabsBloc->>State: Hide secondary plugin
        TabsBloc->>State: Set secondary plugin to BlankPagePlugin
        TabsBloc->>State: Emit openPlugin state
        TabsBloc->>TabsBloc: If setLatest, update latest open view
    end

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File-Level Changes

Change	Details	Files
Prevent duplicate plugin opens within a short time window	Introduce private fields _lastOpenedPluginId, _lastOpenedViewId, _lastOpenTime and a static deduplication window constant In the openPlugin event handler, compare current plugin/view with last opened and skip emit if within the deduplication window Update _lastOpenedPluginId, _lastOpenedViewId, and _lastOpenTime after each valid open	frontend/appflowy_flutter/lib/workspace/application/tabs/tabs_bloc.dart
Remove extraneous blank lines and streamline formatting	Deleted unnecessary blank lines and stray import separators at the top of the file Cleaned up spacing inside close(), _dispatch, and across event handlers Removed redundant trailing blank lines after methods and at the end of the file	frontend/appflowy_flutter/lib/workspace/application/tabs/tabs_bloc.dart

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[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[sourcery-ai]

Hey there - I've reviewed your changes and they look great!

Prompt for AI Agents

Please address the comments from this code review:

## Individual Comments

### Comment 1
<location> `frontend/appflowy_flutter/lib/workspace/application/tabs/tabs_bloc.dart:33-35` </location>
<code_context>
+
   @override
   Future<void> close() {
     state.dispose();
+
+    
</code_context>

<issue_to_address>
**suggestion (bug_risk):** Dispose is called before super.close(), which is correct but may need error handling.

Wrap state.dispose() in a try/catch to guarantee super.close() is always called, even if dispose fails.

```suggestion
  @override
  Future<void> close() {
    try {
      state.dispose();
    } catch (e, stackTrace) {
      // Optionally log the error, e.g. using a logger
      // logger.error('Error disposing state', e, stackTrace);
    }
```
</issue_to_address>

### Comment 2
<location> `frontend/appflowy_flutter/lib/workspace/application/tabs/tabs_bloc.dart:55` </location>
<code_context>
     return super.close();
   }
-
   void _dispatch() {
     on<TabsEvent>(
       (event, emit) async {
</code_context>

<issue_to_address>
**issue (bug_risk):** The _dispatch method is not invoked in the constructor.

If event handlers should be registered during initialization, call _dispatch in the constructor to ensure proper setup.
</issue_to_address>

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[sourcery-ai]

issue (bug_risk): The _dispatch method is not invoked in the constructor.

If event handlers should be registered during initialization, call _dispatch in the constructor to ensure proper setup.

[LucasXu0]

Please verify the code before submitting a PR.