CSS View Transition Pseudo-elements Explained
Blink28624 Syys 2025

CSS View Transition Pseudo-elements Explained

These sources provide a detailed, technical explanation of the View Transition API implementation within the Chromium web browser, focusing on how CSS pseudo-elements enable smooth animations. The first source explains that view transition pseudos (like ::view-transition-old() and ::view-transition-new()) are temporary, browser-synthesized overlays used to capture and animate visual snapshots of elements during state changes. The second, more extensive source describes the low-level C++ classes in the Blink rendering engine and the cc compositor that orchestrate this process, including the DocumentTransition class, which manages the lifecycle, snapshot capture, and pseudo-element creation, and the SurfaceAnimationManager in the Viz component, which handles the final, performant GPU-accelerated animation of the saved frames using specialized layers and directives. Together, the texts map the high-level CSS API to the complex, multi-process architecture of Chromium, explaining how old and new content are matched, isolated on the top layer, and composited for animation.


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network::URLLoaderFactory / URLLoader

network::URLLoaderFactory / URLLoader

The source provides a highly technical overview of the Chromium Network Stack Architecture and Request Pipeline, detailing how network requests are processed from initiation to completion. It explains...

23 Marras 202536min

content::NavigationURLLoader / NavigationURLLoaderImpl

content::NavigationURLLoader / NavigationURLLoaderImpl

The source provides a highly technical explanation of the NavigationURLLoader system within the Chromium architecture, specifically focusing on its implementation, NavigationURLLoaderImpl. This compon...

23 Marras 202530min

content::NavigationRequest

content::NavigationRequest

The source provides a highly technical, in-depth analysis of the Chromium browser's navigation process under the modern PlzNavigate architecture, focusing specifically on the NavigationRequest class. ...

23 Marras 202540min

Browser to Blink: Chromium Navigation Byte Flow

Browser to Blink: Chromium Navigation Byte Flow

The source provides a highly technical, in-depth examination of the network byte flow during a web page navigation within the Chromium browser architecture. It meticulously details the progression of ...

22 Marras 202541min

Blink's View Transitions: Nesting and Compositing Mechanics

Blink's View Transitions: Nesting and Compositing Mechanics

The sources provide a technical overview and implementation details of the View Transition API within the Blink rendering engine, focusing on achieving smooth animated state changes in web pages. The ...

22 Marras 202533min

CSS Overscroll Behavior in Chrome

CSS Overscroll Behavior in Chrome

The source provides a comprehensive technical guide to the CSS overscroll-behavior properties, which allow web developers to control scroll chaining and boundary effects like pull-to-refresh or elasti...

21 Marras 202530min

Scroll-Driven Animations Architecture in Chromium Compositor

Scroll-Driven Animations Architecture in Chromium Compositor

The source provides an extensive architectural deep dive into the implementation of Scroll-driven Animations (SDA) within the Chromium project, specifically focusing on the Blink rendering engine and ...

20 Marras 202539min

Blink's Stacking Contexts and Rendering Pipeline

Blink's Stacking Contexts and Rendering Pipeline

The source provides a highly technical and comprehensive overview of CSS stacking contexts and their implementation within Blink, Chrome's rendering engine. It explains the conceptual role of a stacki...

20 Marras 202550min