Edit: Add page backup feature

400_xowa/src/gplx/xowa/addons/wikis/pagebaks/Pagebaks_addon.java

@@ -0,0 +1,51 @@
+/*
+XOWA: the XOWA Offline Wiki Application
+Copyright (C) 2012-2017 gnosygnu@gmail.com
+
+XOWA is licensed under the terms of the General Public License (GPL) Version 3,
+or alternatively under the terms of the Apache License Version 2.0.
+
+You may use XOWA according to either of these licenses as is most appropriate
+for your project on a case-by-case basis.
+
+The terms of each license can be found in the source code repository:
+
+GPLv3 License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-GPLv3.txt
+Apache License: https://github.com/gnosygnu/xowa/blob/master/LICENSE-APACHE2.txt
+*/
+package gplx.xowa.addons.wikis.pagebaks; import gplx.*; import gplx.xowa.*; import gplx.xowa.addons.*; import gplx.xowa.addons.wikis.*;
+import gplx.xowa.specials.*;
+import gplx.langs.htmls.encoders.*;
+public class Pagebaks_addon implements Xoax_addon_itm {
+	public static void On_page_saved(Xoae_app app, Xowe_wiki wiki, Xoa_ttl ttl, byte[] text) {
+		// get vars
+		if (!app.Cfg().Get_bool_app_or("xowa.wiki.edit.pagebaks.enabled", true)) return;
+
+		// #save file
+		// get file name; note encoding for wnt even on lnx systems just to be consistent
+		Gfo_url_encoder encoder = Gfo_url_encoder_.New__fsys_wnt().Make();
+		byte[] file_name = encoder.Encode(ttl.Full_db());
+
+		// save file to backup dir; EX: /xowa/wiki/en.w/user/temp/save_backups/Earth/20170303_080102_123.txt
+		Io_url bak_dir = wiki.Fsys_mgr().Root_dir().GenSubDir_nest("user", "temp", "page_backups", String_.new_u8(file_name));
+		Io_url file_url = bak_dir.GenSubFil_ary(Datetime_now.Get().XtoStr_fmt("yyyyMMdd_HHmmss_fff"), ".txt");
+		Io_mgr.Instance.SaveFilBry(file_url, text);
+
+		// #prune dir
+		// get files for pruning
+		Io_url[] fils = Io_mgr.Instance.QueryDir_fils(bak_dir);
+		Array_.Sort(fils);
+		
+		// calc files
+		int num_files = fils.length;
+		int max_files = app.Cfg().Get_int_app_or("xowa.wiki.edit.pagebaks.max_backups", 16);
+		int cutoff = num_files - max_files;
+
+		// do pruning
+		for (int i = 0; i < cutoff; i++) {// EX: 3 files and 2 max; 1st file (index 0) needs to be deleted
+			Io_mgr.Instance.DeleteFil(fils[i]);
+		}
+	}
+
+	public String Addon__key() {return "xowa.wikis.edits.pagebaks";}
+}

400_xowa/src/gplx/xowa/guis/views/Xog_tab_itm_edit_mgr.java

@@ -45,7 +45,11 @@ public class Xog_tab_itm_edit_mgr {
 			, String_.new_u8(page.Ttl().Full_txt_raw())
 			, Datetime_now.Get().XtoStr_fmt("HH:mm:ss.fff")
 			);
-		if (!quick_save) {							// full_save; save page and go to read mode
+
+		// full_save; save page and go to read mode
+		if (!quick_save) {
+			gplx.xowa.addons.wikis.pagebaks.Pagebaks_addon.On_page_saved(wiki.Appe(), wiki, page.Ttl(), new_text);
+
 			// update categories
 			try {
 				wiki.Html_mgr().Page_wtr_mgr().Gen(page, Xopg_page_.Tid_read); // NOTE: need to write html to fill Wtxt().Ctgs
@@ -54,6 +58,10 @@ public class Xog_tab_itm_edit_mgr {
 				Gfo_usr_dlg_.Instance.Warn_many("", "", "failed to update categories; err=~{0}", Err_.Message_gplx_log(e));
 			}
 
+			// TODO: save html copy
+			//wiki.Db_mgr().Hdump_mgr().Save(page);
+
+			// parse page and show it
 			page.Html_data().Edit_preview_(Bry_.Empty);
 			Xoae_page stack_page = tab.History_mgr().Cur_page(wiki);		// NOTE: must be to CurPage() else changes will be lost when going Bwd,Fwd
 			stack_page.Db().Text().Text_bry_(page.Db().Text().Text_bry());	// NOTE: overwrite with "saved" changes
@@ -62,7 +70,6 @@ public class Xog_tab_itm_edit_mgr {
 			win_itm.Page__mode_(Xopg_page_.Tid_read);
 			win_itm.Page__async__bgn(tab);
 		}
-//			wiki.Db_mgr().Hdump_mgr().Save(page);
 	}
 	public static void Preview(Xog_tab_itm tab) {
 		if (tab.View_mode() != Xopg_page_.Tid_edit) return;	// exit if not edit; handles preview somehow being called?