Intersection Observer
Blink28616 Okt 2025

Intersection Observer

The sources provide an in-depth explanation of the Intersection Observer API within the Blink rendering engine, focusing on its architecture and implementation to improve web performance. The initial Intersection Observer v1 was designed to efficiently monitor the geometric visibility of DOM elements, replacing costly manual polling and reducing layout thrashing for common features like lazy loading. Furthermore, the documents detail Intersection Observer v2, an extension that adds the crucial ability to detect actual visibility, addressing security and anti-fraud concerns by checking for elements hidden by occlusion or transparency. Blink integrates this API into the frame lifecycle by using a central controller to coordinate checks after layout, ensuring updates are batched and asynchronous for smooth rendering.

Episoder(392)

Blink Codebase: Deeper Classes and Components

Blink Codebase: Deeper Classes and Components

The provided texts describe various classes and components within the Blink rendering engine, offering insight into its internal architecture and functionalities. They explain how Blink manages CSS st...

20 Aug 202555min

Blink Codebase: Deeper Classes and Components

Blink Codebase: Deeper Classes and Components

The provided texts describe various classes and components within the Blink rendering engine, detailing their definitions and functionalities. These documents cover how Blink manages CSS styling (Comp...

20 Aug 20251h 10min

Blink Engine Key Classes 3

Blink Engine Key Classes 3

19 Aug 20251h 10min

Blink Engine Key Classes 2

Blink Engine Key Classes 2

19 Aug 202527min

Blink Core: Architecture and Component Overview

Blink Core: Architecture and Component Overview

The provided sources offer a comprehensive overview of Blink's core architecture and components, primarily focusing on how the engine processes and renders web content. They explain fundamental concep...

19 Aug 20251h 16min

Blink Web Development: A Comprehensive Guide

Blink Web Development: A Comprehensive Guide

The provided text outlines the scope of a six-hour audio lecture designed for C++ developers entering the Blink web development team. This lecture will thoroughly cover Blink's architectural design an...

17 Aug 202533min

JavaScript for the C++ Developer: A Deep Dive

JavaScript for the C++ Developer: A Deep Dive

This document outlines the scope of a multi-part lecture series designed for C++ developers transitioning to JavaScript. The series promises in-depth comparisonsbetween the two languages, covering run...

17 Aug 202556min

Hazard Pointers: Lock-Free Memory Reclamation in C++

Hazard Pointers: Lock-Free Memory Reclamation in C++

The provided sources discuss Hazard Pointers, a crucial technique for safe memory reclamation in lock-free concurrent programming, particularly within C++. They explain how hazard pointers address the...

14 Aug 20251h 27min

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