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Merge pull request #229 from ZIMkaRU/bugfix/fix-max-listeners-exceede…
…d-warning Fix max listeners exceeded warning
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,93 @@ | ||
| 'use strict' | ||
|
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| const wins = require('../windows') | ||
|
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| const WINDOW_EVENT_NAMES = { | ||
| CLOSED: 'closed' | ||
| } | ||
|
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| const windowMap = new Map() | ||
|
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| const addOnceProcEventHandler = (eventName, handler, window) => { | ||
| const _window = window ?? wins.mainWindow | ||
|
|
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| if ( | ||
| !_window || | ||
| !eventName || | ||
| typeof eventName !== 'string' || | ||
| typeof handler !== 'function' | ||
| ) { | ||
| return { | ||
| isAdded: false, | ||
| removeListener: () => {} | ||
| } | ||
| } | ||
|
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| const handlerSet = _setWinEventHandler(eventName, handler, _window) | ||
|
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| const ctx = { | ||
| isAdded: true, | ||
| removeListener: () => handlerSet.delete(handler) | ||
| } | ||
|
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| return ctx | ||
| } | ||
|
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| const _setWinEventHandler = (eventName, handler, window) => { | ||
| const winEventHandlerMap = _getWinEventHandlerMap(window) | ||
| const foundHandlerSet = winEventHandlerMap.get(eventName)?.handlerSet | ||
|
|
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| if (foundHandlerSet instanceof Set) { | ||
| foundHandlerSet.add(handler) | ||
|
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| return foundHandlerSet | ||
| } | ||
|
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| const handlerSet = new Set([handler]) | ||
| const rootHandler = () => { | ||
| winEventHandlerMap.delete(eventName) | ||
|
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| for (const handler of handlerSet) { | ||
| try { | ||
| handlerSet.delete(handler) | ||
|
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| const res = handler() | ||
|
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| if (!(res instanceof Promise)) { | ||
| return | ||
| } | ||
|
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| res.then(() => {}, (err) => { console.error(err) }) | ||
| } catch (err) { | ||
| console.error(err) | ||
| } | ||
| } | ||
| } | ||
|
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| window.once(eventName, rootHandler) | ||
| winEventHandlerMap.set(eventName, { | ||
| rootHandler, | ||
| handlerSet | ||
| }) | ||
|
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| return handlerSet | ||
| } | ||
|
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| const _getWinEventHandlerMap = (window) => { | ||
| const foundWinEventHandlerMap = windowMap.get(window) | ||
|
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| if (foundWinEventHandlerMap instanceof Map) { | ||
| return foundWinEventHandlerMap | ||
| } | ||
|
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| const winEventHandlerMap = new Map() | ||
| windowMap.set(window, winEventHandlerMap) | ||
|
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| return winEventHandlerMap | ||
| } | ||
|
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| module.exports = { | ||
| WINDOW_EVENT_NAMES, | ||
|
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| addOnceProcEventHandler | ||
| } |