From e68392b1e454930677f2528211942510f5306f89 Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Thu, 15 Mar 2018 22:57:28 +0100
Subject: [PATCH] recheck folder content if we notice that it changed

---
 .../gallery/activities/MainActivity.kt           | 16 +++++++++++++++-
 .../simplemobiletools/gallery/helpers/Config.kt  |  6 ++++++
 .../gallery/helpers/Constants.kt                 |  1 +
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/activities/MainActivity.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/activities/MainActivity.kt
index b0b5feecc..fa1c11de6 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/activities/MainActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/activities/MainActivity.kt
@@ -573,7 +573,9 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
 
     private fun gotDirectories(newDirs: ArrayList<Directory>, isFromCache: Boolean) {
         if (!isFromCache) {
-            setupLatestMediaId()
+            Thread {
+                checkFolderContentChange(newDirs)
+            }.start()
         }
 
         val dirs = getSortedDirectories(newDirs)
@@ -600,6 +602,18 @@ class MainActivity : SimpleActivity(), DirectoryAdapter.DirOperationsListener {
         }
     }
 
+    private fun checkFolderContentChange(newDirs: ArrayList<Directory>) {
+        newDirs.forEach {
+            val storedShortDirValue = config.loadFolderMediaShort(it.path)
+            if (storedShortDirValue != it.toString()) {
+                config.saveFolderMediaShort(it.path, it.toString())
+                if (storedShortDirValue.isNotEmpty()) {
+                    updateStoredFolderItems(it.path)
+                }
+            }
+        }
+    }
+
     private fun storeDirectories() {
         if (!config.temporarilyShowHidden && config.tempFolderPath.isEmpty()) {
             val subList = mDirs.subList(0, Math.min(SAVE_DIRS_CNT, mDirs.size))
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Config.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Config.kt
index 8a8e8b646..27aa99116 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Config.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Config.kt
@@ -124,6 +124,12 @@ class Config(context: Context) : BaseConfig(context) {
 
     fun loadFolderMedia(path: String) = prefs.getString(SAVE_FOLDER_PREFIX + path, "")
 
+    fun saveFolderMediaShort(path: String, value: String) {
+        prefs.edit().putString(SAVE_FOLDER_SHORT_PREFIX + path, value).apply()
+    }
+
+    fun loadFolderMediaShort(path: String) = prefs.getString(SAVE_FOLDER_SHORT_PREFIX + path, "")
+
     var autoplayVideos: Boolean
         get() = prefs.getBoolean(AUTOPLAY_VIDEOS, false)
         set(autoplay) = prefs.edit().putBoolean(AUTOPLAY_VIDEOS, autoplay).apply()
diff --git a/app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Constants.kt b/app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Constants.kt
index 535d6f4bf..cf49ee2f3 100644
--- a/app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Constants.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/gallery/helpers/Constants.kt
@@ -26,6 +26,7 @@ const val MEDIA_HORIZONTAL_COLUMN_CNT = "media_horizontal_column_cnt"
 const val MEDIA_LANDSCAPE_HORIZONTAL_COLUMN_CNT = "media_landscape_horizontal_column_cnt"
 const val SHOW_ALL = "show_all"                           // display images and videos from all folders together
 const val SAVE_FOLDER_PREFIX = "folder2_"
+const val SAVE_FOLDER_SHORT_PREFIX = "folder_short_"
 const val HIDE_FOLDER_TOOLTIP_SHOWN = "hide_folder_tooltip_shown"
 const val EXCLUDED_FOLDERS = "excluded_folders"
 const val INCLUDED_FOLDERS = "included_folders"