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Diffstat (limited to 'thirdparty/preact/src/render-queue.js')
-rw-r--r-- | thirdparty/preact/src/render-queue.js | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/thirdparty/preact/src/render-queue.js b/thirdparty/preact/src/render-queue.js new file mode 100644 index 000000000..ff603611b --- /dev/null +++ b/thirdparty/preact/src/render-queue.js @@ -0,0 +1,23 @@ +import options from './options'; +import { defer } from './util'; +import { renderComponent } from './vdom/component'; + +/** Managed queue of dirty components to be re-rendered */ + +// items/itemsOffline swap on each rerender() call (just a simple pool technique) +let items = []; + +export function enqueueRender(component) { + if (!component._dirty && (component._dirty = true) && items.push(component)==1) { + (options.debounceRendering || defer)(rerender); + } +} + + +export function rerender() { + let p, list = items; + items = []; + while ( (p = list.pop()) ) { + if (p._dirty) renderComponent(p); + } +} |