updated auto functions in youtube browser

[u-Kuro]

Summary by Sourcery

Refactor JavaScript functions in the YoutubeViewActivity to simplify and streamline the logic for initializing anchor tags, auto-playing videos, and unmuting videos in the WebView.

Enhancements:

• Simplify JavaScript code for initializing anchor tags in the WebView by restructuring the MutationObserver logic.
• Refactor JavaScript code for auto-playing videos to remove optional chaining and simplify the query selection.
• Streamline JavaScript code for unmuting videos by removing optional chaining and simplifying the logic.

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Name	Status	Preview	Comments	Updated (UTC)
kanshi	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 6, 2024 4:34am

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR updates the JavaScript code in the YouTube browser activity, improving the implementation of anchor tag handling, auto-play, and unmute functionality. The changes primarily focus on code optimization and better DOM element selection.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Improved anchor tag initialization and observation logic	Refactored anchor tag initialization to use a more efficient TreeWalker implementation Added document load event listener to handle cases when body is not immediately available Renamed observer from KanshiMediaRecommendationObserver to KanshiMediaRecommendationVideoObserver	android/app/src/main/java/com/example/kanshi/YoutubeViewActivity.java
Simplified video element selection and autoplay functionality	Streamlined video element selector query Removed redundant optional chaining and type checking Simplified conditional logic for autoplay setting	android/app/src/main/java/com/example/kanshi/YoutubeViewActivity.java
Optimized video unmute functionality	Simplified video element selection logic Removed unnecessary type checking and optional chaining Streamlined play state handling	android/app/src/main/java/com/example/kanshi/YoutubeViewActivity.java

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[sourcery-ai]

Hey @u-Kuro - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider removing the remaining optional chaining operator (?.) in unMuteVideo() for consistency with the rest of the changes.

Here's what I looked at during the review

• 🟡 General issues: 1 issue found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[sourcery-ai]

suggestion (bug_risk): Consider adding null check before calling play()

The current code might attempt to call play() on a null reference if the video element isn't found. Consider changing to e?.paused && e?.play()

Suggested change

	view.post(() -> view.loadUrl("javascript:(()=>{let e=document.querySelector('#player video')||document.querySelector('video.html5-main-video')||document.querySelector('video');document.querySelector('button.ytp-unmute')?.click(),e&&e.paused&&e.play()})()"));
	view.post(() -> view.loadUrl("javascript:(()=>{let e=document.querySelector('#player video')||document.querySelector('video.html5-main-video')||document.querySelector('video');document.querySelector('button.ytp-unmute')?.click(),e&&e?.paused&&e?.play()})()"));