Added to remember scroll when reloading files. #3

html/frame.js

@@ -0,0 +1,9 @@
+document.addEventListener("DOMContentLoaded", function (e) {
+  let h = location.hash;
+  if(h.substr(0, 4) == "#top"){
+    window.scroll(0, parseInt(h.substring(4)));
+  }
+})
+document.addEventListener("scroll", function (e) {
+  window.parent.postMessage(document.documentElement.scrollTop, "*");
+})

html/main.js

@@ -4,4 +4,10 @@ document.getElementById("review-file").addEventListener("change", function(e) {
 
 document.getElementById("refresh_view").addEventListener("click", function(e) {
   pywebview.api.show_review();
+})
+
+var pos = 0;
+
+window.addEventListener("message", function (e) {
+  pos = e.data;
 })

src/js_api.py

@@ -114,8 +114,9 @@ def show_review(self, filename = None):
       it is considered to be a relative path from review_dir.
       If the argument is none, only the current file is reloaded.
     """
+    pos = 0
     if filename is None:
-      pass
+      pos = webview.evaluate_js("pos")
     elif Path(filename).is_absolute():
       self._review_file = filename
     else:
@@ -125,7 +126,7 @@ def show_review(self, filename = None):
     previewhtml = self._review_file.parent / "preview.html"
     with open(previewhtml, mode="w", encoding="utf-8") as f:
       f.write(reviewtxt.replace("</body>", "<script src='{0}'></script></body>".format(path_to_url(mypath() / "html" / "frame.js"))))
-    self._comm.frameurl = path_to_url(previewhtml) + "#{0}".format(self._review_file.stem)
+    self._comm.frameurl = path_to_url(previewhtml) + "?{0}#top{1}".format(self._review_file.stem, pos)
 
 def path_to_url(path):
   """