Add avatar crop popup

src/components/image_cropper/image_cropper.js

@@ -0,0 +1,88 @@
+import Cropper from 'cropperjs'
+import Modal from '../modal/modal.vue'
+import 'cropperjs/dist/cropper.css'
+
+const ImageCropper = {
+  props: {
+    trigger: {
+      type: [String, Element],
+      required: true
+    },
+    cropperOptions: {
+      type: Object,
+      default () {
+        return {
+          aspectRatio: 1,
+          autoCropArea: 1,
+          viewMode: 1,
+          movable: false,
+          zoomable: false,
+          guides: false
+        }
+      }
+    },
+    mimes: {
+      type: String,
+      default: 'image/png, image/gif, image/jpeg, image/bmp, image/x-icon'
+    },
+    title: {
+      type: String,
+      default: 'Crop picture'
+    },
+    saveButtonLabel: {
+      type: String,
+      default: 'Save'
+    }
+  },
+  data () {
+    return {
+      cropper: undefined,
+      dataUrl: undefined,
+      filename: undefined
+    }
+  },
+  components: {
+    Modal
+  },
+  methods: {
+    destroy () {
+      this.cropper.destroy()
+      this.$refs.input.value = ''
+      this.dataUrl = undefined
+    },
+    submit () {
+      this.$emit('submit', this.cropper, this.filename)
+      this.destroy()
+    },
+    pickImage () {
+      this.$refs.input.click()
+    },
+    createCropper () {
+      this.cropper = new Cropper(this.$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', () => {
+      if (fileInput.files != null && fileInput.files[0] != null) {
+        let reader = new FileReader()
+        reader.onload = (e) => {
+          this.dataUrl = e.target.result
+        }
+        reader.readAsDataURL(fileInput.files[0])
+        this.filename = fileInput.files[0].name || 'unknown'
+        this.$emit('changed', fileInput.files[0], reader)
+      }
+    })
+  }
+}
+
+export default ImageCropper