From 20894497698aa051f7e9bf7487b70d17551801a1 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 11 May 2017 18:13:50 +0530
Subject: [PATCH] Update read percent on content load

---
 src/pyj/read_book/iframe.pyj | 14 +++++++++++---
 src/pyj/read_book/view.pyj   |  4 +++-
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/src/pyj/read_book/iframe.pyj b/src/pyj/read_book/iframe.pyj
index 611ab0c9f3..ff401b7549 100644
--- a/src/pyj/read_book/iframe.pyj
+++ b/src/pyj/read_book/iframe.pyj
@@ -250,9 +250,9 @@ class IframeBoss:
                 if si:
                     self.length_before += files[si]?.length or 0
         self.onscroll()
-        self.send_message('content_loaded')
+        self.send_message('content_loaded', progress_frac=self.get_progress_frac())
 
-    def get_progress_frac(self, current_name, spine_index):
+    def calculate_progress_frac(self, current_name, spine_index):
         files = self.book.manifest.files
         file_length = files[current_name]?.length or 0
         if self.length_before is None:
@@ -261,6 +261,14 @@ class IframeBoss:
         ans = (self.length_before + (file_length * frac)) / self.book.manifest.spine_length
         return ans
 
+    def get_progress_frac(self):
+        spine = self.book.manifest.spine
+        current_name = current_spine_item().name
+        index = spine.indexOf(current_name)
+        if index < 0:
+            return 0
+        return self.calculate_progress_frac(current_name, index)
+
     def update_cfi(self):
         cfi = at_current()
         if cfi:
@@ -272,7 +280,7 @@ class IframeBoss:
                 if cfi != self.last_cfi:
                     self.last_cfi = cfi
                     self.send_message('update_cfi', cfi=cfi, replace_history=self.replace_history_on_next_cfi_update,
-                                      progress_frac=self.get_progress_frac(current_name, index))
+                                      progress_frac=self.calculate_progress_frac(current_name, index))
                     self.replace_history_on_next_cfi_update = True
 
     def update_toc_position(self):
diff --git a/src/pyj/read_book/view.pyj b/src/pyj/read_book/view.pyj
index 9eb555e6ca..f9d555b5ee 100644
--- a/src/pyj/read_book/view.pyj
+++ b/src/pyj/read_book/view.pyj
@@ -452,8 +452,10 @@ class View:
         )
         self.encrypted_communications = True
 
-    def on_content_loaded(self):
+    def on_content_loaded(self, data):
         self.hide_loading()
+        frac = data.progress_frac or 0
+        self.update_read_percent(frac)
         # self.overlay.show()
 
     def update_font_size(self):