Blink Compositor Gesture Lifecycle in InputHandlerProxy
Blink2866 Nov 2025

Blink Compositor Gesture Lifecycle in InputHandlerProxy

The source text explains the detailed lifecycle of a gesture scroll sequence within the Chromium rendering engine, focusing on the role of the InputHandlerProxy component. This component acts as a crucial intermediary, receiving events like GestureScrollBegin, GestureScrollUpdate, and GestureScrollEnd and determining whether to handle them immediately on the performant compositor thread or defer them to the slower main thread. The document details how the InputHandlerProxy collaborates with the compositor's LayerTreeHostImpl using specific methods (like ScrollBegin and ScrollBy) to execute scrolling, manage internal tracking flags (such as gesture_scroll_on_impl_thread_), and handle edge cases like overscroll, animated scrolls, and the transfer of control back to the main thread if needed. Finally, the text addresses the challenge of tracking a stable gesture sequence ID, noting that while no universal ID exists, the sequence order and the primary_unique_touch_event_id for touch input implicitly define the gesture's lifespan.

Episoder(404)

The Mechanics of Inline Block and Fragmentation

The Mechanics of Inline Block and Fragmentation

These technical documents describe how Blink’s modern LayoutNG engine manages inline-block elements through a specialized physical fragment tree. Within this system, an inline-block is classified as a...

13 Feb 26min

Inside Chromium: The Architecture of DevTools

Inside Chromium: The Architecture of DevTools

The provided text explains the architecture and inner workings of Chromium DevTools, describing it as a client-server system that bridges a user-facing front-end with the browser’s back-end. This comm...

12 Feb 40min

Chromium Blink Printing Mode Analysis

Chromium Blink Printing Mode Analysis

These sources analyze how the Chromium Blink engine manages printing mode and its impact on layout behavior. The documentation clarifies that printing does not automatically disable a view's status as...

12 Feb 28min

Blink Fragment Propagation and Sticky Descendant Boundaries

Blink Fragment Propagation and Sticky Descendant Boundaries

The provided text explains how Blink's LayoutView manages sticky descendant propagation within the fragment tree. Under standard conditions, sticky elements bubble upward through ancestor fragments un...

12 Feb 29min

Oilpan: The Garbage Collector for Blink in Chrome

Oilpan: The Garbage Collector for Blink in Chrome

Oilpan is a specialized garbage collection system for the Blink rendering engine in Chrome, specifically designed to manage C++ objects and eliminate memory safety issues like use-after-free bugs. It ...

11 Feb 38min

Iframe Layout Coordination and Cooperative Sizing in Blink

Iframe Layout Coordination and Cooperative Sizing in Blink

The provided text describes the technical evolution of iframe layout coordination within Google's Blink rendering engine. Traditionally, browsers treat iframes as isolated boxes with a default size of...

9 Feb 37min

Chrome Scheduler: Frame Orchestrator

Chrome Scheduler: Frame Orchestrator

9 Feb 35min

Blink Rendering Engine: Frame, Document, and View Lifecycle

Blink Rendering Engine: Frame, Document, and View Lifecycle

In the Blink rendering engine, LocalFrame, LocalFrameView, and Document form a specialized triad that manages the structure and display of web content. The LocalFrame acts as the primary controller fo...

8 Feb 34min

Populært innen Teknologi

lydartikler-fra-aftenposten
romkapsel
rss-avskiltet
smart-forklart
teknisk-sett
nasjonal-sikkerhetsmyndighet-nsm
energi-og-klima
rss-impressions-2
tomprat-med-gunnar-tjomlid
shifter
teknologi-og-mennesker
fornybaren
elektropodden
rss-heis
hans-petter-og-co
i-loopen
pedagogisk-intelligens
rss-alt-vi-kan
rss-for-alarmen-gar
rss-polypod