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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| import { last } from 'lodash'; | ||
| import type { DirectiveBinding, ObjectDirective } from 'vue'; | ||
|
|
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| export const vHotkey: ObjectDirective<HTMLButtonElement, string> = { | ||
| mounted: setup, | ||
| updated: reset, | ||
| unmounted: teardown | ||
| }; | ||
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|
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| const ElementsByHotkey = new Map<string, HTMLButtonElement[]>(); | ||
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| function setup(el: HTMLButtonElement, binding: DirectiveBinding<string>) { | ||
| if (ElementsByHotkey.size === 0) { | ||
| window.addEventListener('keydown', handleKeydown); | ||
| } | ||
|
|
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| ElementsByHotkey.set(binding.value.toLowerCase(), [...(ElementsByHotkey.get(binding.value.toLowerCase()) ?? []), el]); | ||
| } | ||
|
|
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| function teardown(el: HTMLButtonElement, binding: DirectiveBinding<string>) { | ||
| const elements = ElementsByHotkey.get(binding.value.toLowerCase()); | ||
| if (elements) { | ||
| const index = elements.indexOf(el); | ||
| if (index !== -1) { | ||
| elements.splice(index, 1); | ||
| } | ||
|
|
||
| if (elements.length === 0) { | ||
| ElementsByHotkey.delete(binding.value.toLowerCase()); | ||
| } | ||
| } | ||
|
|
||
| if (ElementsByHotkey.size === 0) { | ||
| window.removeEventListener('keydown', handleKeydown); | ||
| } | ||
| } | ||
|
|
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| function reset(el: HTMLButtonElement, binding: DirectiveBinding<string>) { | ||
| teardown(el, binding); | ||
| setup(el, binding); | ||
| } | ||
|
|
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| function handleKeydown(event: KeyboardEvent) { | ||
| const hotkey = event.key.toLowerCase(); | ||
| const elements = ElementsByHotkey.get(hotkey); | ||
| if (elements) { | ||
| const element = last(elements); | ||
| element?.click(); | ||
| event.preventDefault(); | ||
| } | ||
| } |
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