save and load state

popup/tip.js

@@ -11,4 +11,22 @@ window.onload = function () {
                 'url': `https://git.jebbs.co/jebbs/data-extracter-extesion`
             });
         })
+    document.querySelector('#state-input')
+        .addEventListener('change', function (...args) {
+            if (this.files.length == 1) {
+                var reader = new FileReader();
+                let fileName = this.files[0].name;
+                reader.readAsText(this.files[0], "UTF-8");
+                reader.onload = function (evt) {
+                    var fileString = evt.target.result;
+                    chrome.runtime.sendMessage({
+                        action: ACTION_UPLOAD_STATE,
+                        state: fileString,
+                        name: fileName
+                    }, r => {
+                        if (r) console.log('State sent:', r);
+                    });
+                }
+            }
+        });
 }