Evan Almloff
0127501dbf
Improve inline docs * improve incorrect event handler return error message * Improve event handler docs * document the eval functions * document spawn and common spawn errors * fix event handler docs * add notes about how you use attributes and elements in rsx * add doc aliases for attributes and events we rename * add some more aliases for common search terms * don't doc ignore any public examples in core * don't ignore public doc examples in ssr * don't ignore examples in the dioxus package readme * add a warning when you launch without a renderer enabled * fix some outdated element docs * add a bunch of examples to resource * add notes about desktop events * add more docs for use_resource * add on_unimplemented hint to Dependency * fix some unresolved links * add examples to each of the router traits * add not implemented errors for router traits * add an example to the routable trait * expand rsx macro docs * improve memo docs * update the dioxus readme * mention dioxus crate features in the docs * fix a bunch of doc tests * fix html doc tests * fix router doc tests * fix dioxus signals doc tests * fix dioxus ssr doc tests * fix use_future example in the hooks cheat sheet * add a javascript alias for eval * fix hook explanation values * remove unused embed-doc-image dependency
19 lines
696 B
Rust
19 lines
696 B
Rust
use dioxus_core::prelude::*;
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use dioxus_signals::{CopyValue, Writable};
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/// A hook that uses before/after lifecycle hooks to determine if the hook was run
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#[doc = include_str!("../docs/rules_of_hooks.md")]
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#[doc = include_str!("../docs/moving_state_around.md")]
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pub fn use_hook_did_run(mut handler: impl FnMut(bool) + 'static) {
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let mut did_run_ = use_hook(|| CopyValue::new(false));
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// Before render always set the value to false
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use_before_render(move || did_run_.set(false));
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// Only when this hook is hit do we want to set the value to true
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did_run_.set(true);
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// After render, we can check if the hook was run
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use_after_render(move || handler(did_run_()));
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}
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