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@loopmode/events\n\nUnified global event handling.\n\nRegisters no more than a single listener per event type, invokes all registered callbacks.\nThe event listener is created when needed and removed again when obsolete.\n\n-   Safe support for passive events via [detect-passive-events](https://github.com/rafrex/detect-passive-events)\n-   Currently, only `window`, `document` and `body` are supported as event targets (Default is `window`)\n\n\u003cbr /\u003e\nSupports the same signature as [addEventListener](https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener),\nso it should be safe to search and replace in your code as follows:\n\n-   `window.addEventListener` -\u003e `Events.on`\n-   `document.addEventListener('mousedown', this.handleMouseDown)` -\u003e `Events.on.document('mousedown', this.handleMouseDown)`\n-   `document.addEventListener('mousedown', this.handleMouseDown)` -\u003e `Events.on('mousedown', this.handleMouseDown, {target: document})`\n-   `window.removeEventListener` -\u003e `Events.off`\n-   ...\n\n## Documentation\n\nSee [https://loopmode.github.io/events/](https://loopmode.github.io/events/)\n\n## Motivation\n\nKeep the number of global event listeners low, especially when using in react components that are rendered dozens or hundrets of time on the screen.\nSupport passive events, stay as light-weight as possible.\n\n## Installation\n\n```\nyarn add @loopmode/events\n```\n\n## Usage\n\nThe default export is a singleton instance of the class. Typically, that's what you want.\n\nBasic usage:\n\n```\nimport Events from '@loopmode/events';\n\nfunction onResize(event) {\n    console.log('resize', event)\n}\n\nEvents.on('resize', onResize);\nEvents.off('resize', onResize);\n\n\n// remember to pass the same options when removing listeners:\nEvents.on('resize', onResize, {capture: true});\nEvents.off('resize', onResize, {capture: true})\n\n\n// alternatively, use returned object with dispose function:\nconst listener = Events.on('mousemove', onResize, {capture: true, target: document.body, passive: true})\n// no need to provide any arguments\nlistener.dispose();\n```\n\nIn react component, with passive option:\n\n```\nimport React, { PureComponent } from 'react';\nimport Events from '@loopmode/events';\n\nexport class MyComponent extends PureComponent {\n    state = {\n        delta: 0\n    };\n    componentDidMount() {\n        this.wheelListener = Events.on('wheel', this.handleWheel, { passive: true })\n    }\n    componentWillUnmount() {\n        // same as Events.off('wheel', this.handleWheel, { passive: true })\n        this.wheelListener.dispose();\n    }\n    handleWheel = (event) =\u003e {\n        this.setState({\n            delta: event.deltaY\n        })\n    };\n    render() {\n        return (\n            \u003cdiv\u003e{this.state.delta}\u003c/div\u003e\n        );\n    }\n}\n```\n\nIf you need additional instances, use the named `Events` export:\n\n```\nimport { Events } from '@loopmode/events';\n\nconst myEvents = new Events();\n\nfunction onResize(event) {\n    console.log('resize', event)\n}\n\nmyEvents.on('resize', onResize);\n```\n\nEvery instance may register up to one global event listener per event type.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Floopmode%2Fevents","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Floopmode%2Fevents","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Floopmode%2Fevents/lists"}