readastext filereader
FileReader.readAsText()
https://developer.mozilla.org/zh-CN/docs/Web/API/FileReader/readAsText
loadFile (file) {
if (!file) return;
log(`svg file`, file);
const fr = new FileReader();
// FileReader
fr.readAsText(file);
fr.addEventListener('loadend', (e) => {
// this.clearFeatures();
// this.addSVG(fr.result);
log(`fr.result`, fr.result);
});
},
// enter
dragoverHandler (e) {
e.preventDefault();
this.hover = true;
log(`over svg 圖片`);
},
dragleaveHandler (e) {
e.preventDefault();
this.hover = false;
log(`leave svg 圖片`);
},
dropHandler (e) {
// this.dragleaveHandler();
e.preventDefault()
this.hover = false;
log(`drop svg 圖片`);
// 上傳文件
this.loadFile(e.dataTransfer.files[0]);
},
init() {
// let dom = this.$el;
let dom = this.$refs["svg-editor-box"];
log(`dom ref`, dom);
dom.addEventListener('dragover', this.dragoverHandler, false);
dom.addEventListener('dragleave', this.dragleaveHandler, false);
dom.addEventListener('drop', this.dropHandler, false);
}