From 9887ba207990d371072c0de9856e4a3c0079f9cb Mon Sep 17 00:00:00 2001
From: ketmar <ketmar@ketmar.no-ip.org>
Date: Mon, 8 Nov 2021 08:39:44 +0000
Subject: [PATCH] use db data version checks to avoid some unnecessary updates
 (mostly tray anim and folder rescan)

FossilOrigin-Name: fca16348ffdfb3b17f86c485f29c3ca02409e517259709cd392ccfb5f80df7e7
---
 chiroptera.d | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/chiroptera.d b/chiroptera.d
index 893cc71..2d907fa 100644
--- a/chiroptera.d
+++ b/chiroptera.d
@@ -226,6 +226,7 @@ class FolderInfo {
 }
 
 __gshared FolderInfo[] folderList;
+__gshared uint folderDataVersion = uint.max;
 
 
 //FIXME: make this faster
@@ -235,6 +236,8 @@ bool rescanFolders () {
   import std.conv : to;
   bool res = false;
 
+  if (folderList.length != 0 && dbView.getDataVersion() == folderDataVersion) return false; // nothing to do here
+
   bool needsort = false;
   foreach (FolderInfo fi; folderList) fi.seen = false;
 
@@ -365,6 +368,8 @@ bool rescanFolders () {
   }
 
   setupTrayAnimation();
+  folderDataVersion = dbView.getDataVersion();
+  //conwriteln("ver=", folderDataVersion);
   return res;
 }
 
@@ -380,6 +385,7 @@ shared static this () { evTrayAnimationStep = new TrayAnimationStepEvent(); }
 
 __gshared int trayAnimationIndex = 0; // 0: no animation
 __gshared int trayAnimationDir = 1; // direction
+__gshared uint trayAnimDataVersion = uint.max;
 
 
 // ////////////////////////////////////////////////////////////////////////// //
@@ -441,10 +447,19 @@ void setupTrayAnimation () {
     LIMIT 1
   ;`);
 
+  if (trayicon is null) return; // no tray icon
+
+  immutable uint dver = dbView.getDataVersion();
+  //conwriteln("TRAY: dver=", dver, "; trv=", trayAnimDataVersion);
+  if (dver == trayAnimDataVersion) return;
+  trayAnimDataVersion = dver;
+
   foreach (auto row; stmtGetUnread.st.range) {
+    //conwriteln("TRAY: start anim!");
     trayStartAnimation();
     return;
   }
+  //conwriteln("TRAY: stop anim!");
   trayStopAnimation();
 }
 
@@ -1610,6 +1625,7 @@ final class MainPaneWindow : SubWindow {
   uint msglistCurrUId = 0;
   bool saveMsgListPositions = false;
   MonoTime lastStateSaveTime;
+  //uint viewDataVersion;
 
   this () {
     super(null, 0, 0, screenWidth, screenHeight);
@@ -1617,8 +1633,16 @@ final class MainPaneWindow : SubWindow {
     add();
     loadSavedState();
     lastStateSaveTime = MonoTime.currTime;
+    //viewDataVersion = dbView.getDataVersion()-1;
   }
 
+  /*
+  bool isViewChanged () const nothrow @trusted @nogc {
+    pragma(inline, true);
+    return (viewDataVersion == dbView.getDataVersion());
+  }
+  */
+
   void updateViewsIfTid (uint tid) {
     if (tid && lastDecodedTid == tid) {
       switchToFolderTid(lastDecodedTid, forced:true);
-- 
2.11.4.GIT