Xogv_tab_base.java

/*
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.guis; import gplx.*; import gplx.xowa.*;
import gplx.core.net.*;
import gplx.xowa.htmls.*; import gplx.xowa.guis.history.*;
import gplx.xowa.apps.*; import gplx.xowa.wikis.*; import gplx.xowa.apps.urls.*;
import gplx.core.threads.*;
public abstract class Xogv_tab_base {
	private Gfo_url_parser url_parser;
	private Xoav_wiki_mgr wiki_mgr;
	private Gfo_thread_pool thread_pool;
	public void Ctor(Xoav_wiki_mgr wiki_mgr, Gfo_thread_pool thread_pool, Gfo_url_parser url_parser) {this.wiki_mgr = wiki_mgr; this.thread_pool = thread_pool; this.url_parser = url_parser;}
	public Xog_history_stack History_stack()		{return history_stack;} private final    Xog_history_stack history_stack = new Xog_history_stack(); 
	public Xog_history_itm Cur_itm()				{return history_stack.Cur_itm();}
	public Xow_wiki Get_wiki_or_null(byte[] key)	{return wiki_mgr.Get_by_or_null(key);}
	public Xoh_page Go_to(byte[] page)				{return Go_to(history_stack.Cur_itm().Wiki(), page, Bry_.Empty, Bry_.Empty, false, "");}
	public Xoh_page Go_to(byte[] wiki, byte[] page)	{return Go_to(wiki, page, Bry_.Empty, Bry_.Empty, false, "");}
	public Xoh_page Go_to(byte[] wiki, byte[] page, byte[] anch, byte[] qarg, boolean redirect_force, String bmk_pos) {
		Xog_history_itm old_itm = this.Cur_itm();
		Xog_history_itm new_itm = new Xog_history_itm(wiki, page, anch, qarg, redirect_force, bmk_pos);
		Xoh_page rv = Fetch_page_and_show(old_itm, new_itm);
		if (rv.Db().Page().Exists())
			history_stack.Add(new_itm);
		return rv;
	}
	public Xoh_page Go_bwd() {return Go_by_dir(Bool_.Y);}
	public Xoh_page Go_fwd() {return Go_by_dir(Bool_.N);}
	public Xoh_page Reload() {return Fetch_page_and_show(Cur_itm(), Cur_itm());}
	private Xoh_page Go_by_dir(boolean bwd) {
		Xog_history_itm old_itm = this.Cur_itm();
		Xog_history_itm new_itm = bwd ? history_stack.Go_bwd() : history_stack.Go_fwd();
		return Fetch_page_and_show(old_itm, new_itm);
	}
	private Xoh_page Fetch_page_and_show(Xog_history_itm old_itm, Xog_history_itm new_itm) {
		if (new_itm == Xog_history_itm.Null) return Xoh_page.New_missing();
		Fetch_page__bgn(new_itm.Wiki(), new_itm.Page(), new_itm.Qarg());
		Xoh_page new_hpg = new Xoh_page();
		// Thread_adp_.Start_by_key(Xogv_page_load_wkr.Thread_name, new Xogv_page_load_wkr(wiki_mgr, url_parser, this, old_itm, new_itm), Xogv_page_load_wkr.Invk_exec);
		thread_pool.Add_at_end(new Xogv_page_load_wkr(wiki_mgr, url_parser, this, old_itm, new_itm));
		thread_pool.Run();
		return new_hpg;
	}
	@gplx.Virtual protected void Fetch_page__bgn(byte[] wiki_domain, byte[] page_bry, byte[] qarg_bry) {}
	public void Srl_save(Bry_bfr bfr)					{history_stack.Srl_save(bfr);}
	public void Srl_load(byte[] raw)					{history_stack.Srl_load(raw);}
	public abstract void Show_page(Xog_history_itm old_itm, Xog_history_itm new_itm, Xoh_page new_hpg);
}