Struct BrowserSharedRenderLoop 

pub struct BrowserSharedRenderLoop;

The one render loop of the page. Every view renders in the animation frames of one thread: the thread of the user interface, or the render thread when the platform started one (start_render_thread).

Implementations

impl BrowserSharedRenderLoop

pub fn render_timer() -> Arc<BrowserRenderTimer>

The render timer of the page. Upstream creates it with RunsInBackground false in both of its modes; here it runs in the background when it was created for the render thread (start_render_thread).

pub fn start_render_thread() -> bool

Starts the render thread of the page and makes the render timer one that ticks there, in the background. Returns whether the views of the page are rendered by the render thread from here on.

The platform calls it once, when it is registered, in a module built with threads: before the first view is created and before anything asks for the render timer or the render loop. The thread of the user interface does not wait for the thread (RenderWorker::start); a view that is created before the thread has reported itself is not ready until it has.

The answer is false, and the page renders on the thread of the user interface as it does without threads, when the module was built without threads, when the thread cannot be created, when the render timer exists already (the order above was not kept) and when a render thread was started by somebody else, with a frame loop of their own.

pub fn renders_on_render_thread() -> bool

Whether the render loop of the page ticks on the render thread: the compositor of a view is then confined to that thread, and the canvas of a view is created for it.

pub fn render_loop() -> Arc<dyn IRenderLoop>

The render loop driven by render_timer.