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Remove event listeners when destory ImageCropper

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This commit is contained in:
taehoon 2019-02-08 12:03:04 -05:00
parent 228e6681e3
commit ddfdaf3284
1 changed files with 28 additions and 14 deletions
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40
src/components/image_cropper/image_cropper.js
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@ -65,19 +65,12 @@ const ImageCropper = {
},
createCropper () {
this.cropper = new Cropper(this.$refs.img, this.cropperOptions)
}
},
mounted () {
// listen for click event on trigger
let trigger = typeof this.trigger === 'object' ? this.trigger : document.querySelector(this.trigger)
if (!trigger) {
this.$emit('error', 'No image make trigger found.', 'user')
} else {
trigger.addEventListener('click', this.pickImage)
}
// listen for input file changes
let fileInput = this.$refs.input
fileInput.addEventListener('change', () => {
getTriggerDOM () {
return typeof this.trigger === 'object' ? this.trigger : document.querySelector(this.trigger)
},
readFile () {
const fileInput = this.$refs.input
if (fileInput.files != null && fileInput.files[0] != null) {
let reader = new FileReader()
reader.onload = (e) => {
@ -87,7 +80,28 @@ const ImageCropper = {
this.filename = fileInput.files[0].name || 'unknown'
this.$emit('changed', fileInput.files[0], reader)
}
})
}
},
mounted () {
// listen for click event on trigger
const trigger = this.getTriggerDOM()
if (!trigger) {
this.$emit('error', 'No image make trigger found.', 'user')
} else {
trigger.addEventListener('click', this.pickImage)
}
// listen for input file changes
const fileInput = this.$refs.input
fileInput.addEventListener('change', this.readFile)
},
beforeDestroy: function () {
// remove the event listeners
const trigger = this.getTriggerDOM()
if (trigger) {
trigger.removeEventListener('click', this.pickImage)
}
const fileInput = this.$refs.input
fileInput.removeEventListener('change', this.readFile)
}
}