Feature/switch to frame

[VishalBose7]

This pull request introduces the capability to switch to iframes within the Selenium MCP server.
It enhances the server’s functionality by enabling iframe handling, which is essential for interacting with web elements embedded in nested contexts.

Summary by CodeRabbit

• New Features
  • Introduced a tool that allows switching the browser context to a specific frame or back to the main document during automated browser sessions. Users can switch by frame locator, index, or return to the default content.

[coderabbitai]

Walkthrough

A new Selenium tool named "switch_to_frame" was introduced in the server logic, allowing frame context switching by locator, index, or resetting to default content. The tool handles errors and prioritizes switching methods based on provided parameters. No other functional changes were made, aside from a minor newline addition.

Changes

File(s)	Change Summary
src/lib/server.js	Added "switch_to_frame" tool for Selenium context switching by locator, index, or default content; minor newline added.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant Server
    participant Selenium

    Client->>Server: Call switch_to_frame(by?, value?, index?, defaultContent?)
    alt defaultContent is true
        Server->>Selenium: Switch to default content
    else index is provided
        Server->>Selenium: Switch to frame by index
    else by and value are provided
        Server->>Selenium: Switch to frame by locator
    else
        Server-->>Client: Return "No valid frame selector provided"
    end
    Server-->>Client: Return success or error message

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Estimated code review effort

2 (~15 minutes)

Poem

A frame here, a frame there,
Now I can hop anywhere!
By index or by name,
I’ll never lose my frame.
With every switch, I leap anew—
Selenium’s world, now easier to view!
🐇✨

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
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📥 Commits

Reviewing files that changed from the base of the PR and between 9c1d066 and 7975a44.

📒 Files selected for processing (1)

• src/lib/server.js (2 hunks)

🔇 Additional comments (2)

src/lib/server.js (2)

176-209: Well-implemented iframe switching functionality.

The implementation follows excellent practices:

• Clear parameter design with appropriate optional constraints
• Logical prioritization of switching methods (defaultContent > index > locator)
• Proper error handling with meaningful messages
• Consistent integration with existing helper functions (getDriver(), getLocator())
• Correct usage of Selenium's switchTo() API

The tool properly handles all three common iframe switching scenarios and provides clear feedback for invalid parameter combinations.

---

514-514: Good formatting improvement.

Adding the trailing newline improves code consistency and follows standard formatting practices.

✨ Finishing Touches

• 📝 Generate Docstrings

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