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New API for Customizing Equal Rules for Results & Fix Result Clone Issue #3178

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Jack251970
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@Jack251970 Jack251970 commented Jan 10, 2025

New API for Customizing Equal Rules for Results

GetTitleKey and GetSubTitleKey are the actions to get the key of the title or the subtitle.

These keys will be used when FL checks whether the result is the topmost record.

Or FL calculates the hashcode of the result for user selected records.

This is useful if one plugin needs to change the title or the subtitle of one record dynamically.

E.g. The records of plugin Edge Workspace have subtitles which can change based on the tab number of the edge workspace, but FL should regard these records as the same. (Full issue in cspotcode/Flow.Launcher.Plugin.EdgeWorkspaces#3)

Because #3112 is in the 1.20.0 milestone, so I have not change the codes related to this.

Fix Result Clone Issue

I find that some properties are not cloned when calling Clone function in the Result, so I fix this clone issue.

@prlabeler prlabeler bot added the bug Something isn't working label Jan 10, 2025
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gitstream-cm bot commented Jan 10, 2025

🥷 Code experts: no user matched threshold 10

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Flow.Launcher.Plugin/Result.cs

Knowledge based on git-blame:

Flow.Launcher/Storage/TopMostRecord.cs

Knowledge based on git-blame:

Flow.Launcher/Storage/UserSelectedRecord.cs

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📝 Walkthrough

Walkthrough

The pull request introduces significant enhancements to the Result class in the Flow Launcher plugin system. Multiple new properties have been added to provide more detailed contextual information, including ContextData, PluginID, various tooltip options, preview panel support, progress bar configurations, and key retrieval methods. The changes also update related classes like TopMostRecord and UserSelectedRecord to accommodate these new properties, particularly in methods involving equality checking and hash code generation.

Changes

File Change Summary
Flow.Launcher.Plugin/Result.cs Added 11 new properties including ContextData, PluginID, TitleToolTip, SubTitleToolTip, PreviewPanel, ProgressBar, ProgressBarColor, Preview, AddSelectedCount, GetTitleKey, and GetSubTitleKey
Flow.Launcher/Storage/TopMostRecord.cs Updated Equals method to use new GetTitleKey and GetSubTitleKey methods for comparison when available
Flow.Launcher/Storage/UserSelectedRecord.cs Modified hash code generation methods to leverage new GetTitleKey and GetSubTitleKey methods

Sequence Diagram

sequenceDiagram
    participant Plugin
    participant Result
    participant TopMostRecord
    participant UserSelectedRecord

    Plugin->>Result: Create Result with new properties
    Result-->>Plugin: Configured Result object
    TopMostRecord->>Result: Check Equality
    Result-->>TopMostRecord: Compare using custom keys
    UserSelectedRecord->>Result: Generate Hash Code
    Result-->>UserSelectedRecord: Compute hash using custom methods
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Suggested labels

enhancement, 1 min review

Suggested reviewers

  • jjw24
  • taooceros

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🐰 A Rabbit's Ode to Result's New Might

Properties dancing, so sleek and bright,
Tooltips and previews take playful flight,
Plugins now sparkle with context galore,
Flow Launcher leaps to a whole new shore!
Hop, hop, hooray for code's delight! 🚀


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Actionable comments posted: 2

🧹 Nitpick comments (1)
Flow.Launcher/Storage/UserSelectedRecord.cs (1)

47-48: Improve readability of hash code generation.

While the implementation is correct, the long ternary expressions make it harder to read and maintain.

Consider extracting the key retrieval logic:

-int hashcode = GenerateStaticHashCode(result.GetTitleKey != null ? result.GetTitleKey(result.Title) : result.Title);
-return GenerateStaticHashCode(result.GetSubTitleKey != null ? result.GetSubTitleKey(result.SubTitle) : result.SubTitle, hashcode);
+private static string GetEffectiveTitle(Result result)
+{
+    return result.GetTitleKey != null ? result.GetTitleKey(result.Title) : result.Title;
+}
+
+private static string GetEffectiveSubTitle(Result result)
+{
+    return result.GetSubTitleKey != null ? result.GetSubTitleKey(result.SubTitle) : result.SubTitle;
+}
+
+int hashcode = GenerateStaticHashCode(GetEffectiveTitle(result));
+return GenerateStaticHashCode(GetEffectiveSubTitle(result), hashcode);
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📒 Files selected for processing (3)
  • Flow.Launcher.Plugin/Result.cs (2 hunks)
  • Flow.Launcher/Storage/TopMostRecord.cs (1 hunks)
  • Flow.Launcher/Storage/UserSelectedRecord.cs (2 hunks)
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  • GitHub Check: gitStream.cm
🔇 Additional comments (2)
Flow.Launcher.Plugin/Result.cs (1)

284-302: LGTM! Well-documented API for customizing equal rules.

The new API with GetTitleKey and GetSubTitleKey is well-designed and properly documented. The implementation aligns perfectly with the PR objectives, particularly for plugins that need to handle dynamic titles/subtitles.

Flow.Launcher/Storage/TopMostRecord.cs (1)

55-62: LGTM! Robust implementation of the new equal rules.

The implementation correctly handles both the new key-based comparison and falls back to direct string comparison when keys are not provided. This ensures backward compatibility while supporting the new customization API.

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@taooceros
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taooceros commented Jan 10, 2025

I actually think we don't need an action to handle this. If plugin want to specify the equality of two result, they just need one Key, so we can add an identification field that is nullable? That field can be long probably (so plugin can calculate hashcode or something directly)?

One problem is the GetHashCode function used in c# is not stable across different start of executable (so not persistable) for security reason, so plugin may need to implemenet an id mechanism themselves instead of relying on the GetHashCode. However, if they have the need of changing title/subtitle without making the item differently, I think that's a valid assumption they can store some id related to the result.

@Jack251970
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I actually think we don't need an action to handle this. If plugin want to specify the equality of two result, they just need one Key, so we can add an identification field that is nullable? That field can be long probably (so plugin can calculate hashcode or something directly)?

One problem is the GetHashCode function used in c# is not stable across different start of executable (so not persistable) for security reason, so plugin may need to implemenet an id mechanism themselves instead of relying on the GetHashCode. However, if they have the need of changing title/subtitle without making the item differently, I think that's a valid assumption they can store some id related to the result.

Yeah. I see. What about introducing RecordKey property to the Result class for FL to identify one result? (If one plugin does not specific this, FL just uses Title and SubTitle to identify this result.)

From my view, Title and SubTitle of the Result should be the properties for display, and RecordKey can be the property for identification.

That way one plugin can specify any unique key, and FL will use it, ignoring title and subtitle. Plugin can get full control and can modify title or subtitle without breaking TopmostRecord and UserSelectedRecord.

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cspotcode commented Jan 13, 2025

A nullable identification field / RecordKey is also easier for non-C# plugins because it avoids extra RPC calling between C# and the external process. And in the case of Edge Workspaces, the Edge browser already assigns each workspace a unique UUID, so we can use that value for RecordKey.

@taooceros
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I actually think we don't need an action to handle this. If plugin want to specify the equality of two result, they just need one Key, so we can add an identification field that is nullable? That field can be long probably (so plugin can calculate hashcode or something directly)?
One problem is the GetHashCode function used in c# is not stable across different start of executable (so not persistable) for security reason, so plugin may need to implemenet an id mechanism themselves instead of relying on the GetHashCode. However, if they have the need of changing title/subtitle without making the item differently, I think that's a valid assumption they can store some id related to the result.

Yeah. I see. What about introducing RecordKey property to the Result class for FL to identify one result? (If one plugin does not specific this, FL just uses Title and SubTitle to identify this result.)

From my view, Title and SubTitle of the Result should be the properties for display, and RecordKey can be the property for identification.

That way one plugin can specify any unique key, and FL will use it, ignoring title and subtitle. Plugin can get full control and can modify title or subtitle without breaking TopmostRecord and UserSelectedRecord.

I think this is cool. Sorry got trapped by many things lately. Let's do that.

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3 participants