//HTML Viewer in C--

//Copyright 2007-2013 by Veliant & Leency

//Asper, lev, Lrz, Barsuk, Nable...

//home icon - rachel fu, GPL licence

#ifndef AUTOBUILD

	#include "lang.h--"

#endif

//libraries

#define MEMSIZE 0x100000

#include "..\lib\kolibri.h"

#include "..\lib\strings.h"

#include "..\lib\figures.h"

#include "..\lib\encoding.h"

#include "..\lib\file_system.h"

#include "..\lib\mem.h"

#include "..\lib\dll.h"

#include "..\lib\draw_buf.h"

#include "..\lib\list_box.h"

#include "..\lib\cursor.h"

//*.obj libraries

#include "..\lib\lib.obj\box_lib.h"

#include "..\lib\lib.obj\libio_lib.h"

#include "..\lib\lib.obj\libimg_lib.h"

#include "..\lib\lib.obj\http.h"

//images

#include "img\toolbar_icons.c"

#include "img\URLgoto.txt";

#ifdef LANG_RUS

	char version[]=" ����⮢� ��㧥� 0.99.67";

	?define IMAGES_CACHE_CLEARED "��� ���⨭�� ��饭"

	?define T_LAST_SLIDE "�� ��᫥���� ᫠��"

	char loading[] = "����㧪� ��࠭���...
";

	unsigned char page_not_found[] = FROM "html\page_not_found_ru.htm";

#else

	char version[]=" Text-based Browser 0.99.67";

	?define IMAGES_CACHE_CLEARED "Images cache cleared"

	?define T_LAST_SLIDE "This slide is the last"

	char loading[] = "Loading...
";

	unsigned char page_not_found[] = FROM "html\page_not_found_en.htm";

#endif

byte native_http=1;

proc_info Form;

#define WIN_W 640

#define WIN_H 480

char search_path[]="http://nigma.ru/index.php?s=";

char str_location[]="location\0";

int redirected = 0;

char stak[4096];

mouse m;

int action_buf;

dword http_transfer = 0;

dword http_buffer;

int	downloader_id;

#include "..\TWB\TWB.c"

#include "menu_rmb.h"

char editURL[sizeof(URL)];

int	mouse_twb;

edit_box address_box= {250,207,16,0xffffff,0x94AECE,0xffffff,0xffffff,0,sizeof(URL),#editURL,#mouse_twb,2,19,19};

#define URL_HISTORY "WebView://history"

enum { BACK=300, FORWARD, REFRESH, HOME, NEWTAB, GOTOURL, SEARCHWEB, INPUT_CH, INPUT_BT, BTN_UP, BTN_DOWN };

void main()

{

	int key, btn;

	int half_scroll_size;

	int scroll_used=0, show_menu;

	mem_Init();

	CursorPointer.Load(#CursorFile);

	if (load_dll2(boxlib, #box_lib_init,0)!=0) {notify("System Error: library doesn't exists /rd/1/lib/box_lib.obj"); ExitProcess();}

	if (load_dll2(libio, #libio_init,1)!=0) notify("Error: library doesn't exists - libio");

	if (load_dll2(libimg, #libimg_init,1)!=0) notify("Error: library doesn't exists - libimg");

	if (load_dll2(libHTTP, #http_lib_init,1)!=0) notify("Error: library doesn't exists - http");

	if (!URL) strcpy(#URL, "/sys/index.htm");

	Form.width=WIN_W;

	Form.height=WIN_H;

	SetElementSizes();

	OpenPage();

	SetEventMask(0xa7);

	loop()

	{

		WaitEventTimeout(2);

		switch(EAX & 0xFF)

		{

			CASE evMouse:

				if (!CheckActiveProcess(Form.ID)) break;

				edit_box_mouse stdcall (#address_box);

				m.get();

				if (m.y>WB1.list.y) PageLinks.Hover(m.x, m.y, link_color_inactive, link_color_active, bg_color);

				if (m.y>WB1.list.y) && (m.y

				{

					if (m.pkm)

					{

						show_menu = 1;

					}

					if (!m.pkm) && (show_menu)

					{

						show_menu = 0;

						SwitchToAnotherThread();

						CreateThread(#menu_rmb,#stak+4092);

						break;

					}

				}

				if (m.vert)

				{

					if (WB1.list.MouseScroll(m.vert)) WB1.Parse(bufpointer, bufsize);

				}

				if (!m.lkm) scroll_used=0;

				if (m.x>=scroll_wv.start_x) && (m.x<=scroll_wv.start_x+scroll_wv.size_x)

				&& (m.y>=scroll_wv.start_y+scroll_wv.btn_height) && (-scroll_wv.btn_height+scroll_wv.start_y+scroll_wv.size_y>m.y)

				&& (WB1.list.count>WB1.list.visible) && (m.lkm)

				{

					scroll_used=1;

				}

				if (scroll_used)

				{

					half_scroll_size = WB1.list.h - 16 * WB1.list.visible / WB1.list.count - 3 /2;

					if (half_scroll_size+WB1.list.y>m.y) || (m.y<0) || (m.y>4000) m.y=half_scroll_size+WB1.list.y;

					btn=WB1.list.first;

					WB1.list.first = m.y -half_scroll_size -WB1.list.y * WB1.list.count / WB1.list.h;

					if (WB1.list.visible+WB1.list.first>WB1.list.count) WB1.list.first=WB1.list.count-WB1.list.visible;

					if (btn<>WB1.list.first) WB1.Parse(bufpointer, bufsize);

				}

				break;

			case evButton:

				btn=GetButtonID();

				if (btn==1)

				{

					KillProcess(downloader_id);

					ExitProcess();

				}

				ELSE

				{

					Scan(btn);

				}

				break;

			case evKey:

				key = GetKey();

				if (address_box.flags & 0b10) SWITCH(key)

					{ CASE 52: CASE 53: CASE 54: goto _EDIT_MARK; }

				Scan(key);

				_EDIT_MARK:

				if (key<>0x0d) && (key<>183) && (key<>184) {EAX=key<<8; edit_box_key stdcall(#address_box);}

				break;

			case evReDraw:

				if (action_buf) { Scan(action_buf); action_buf=0;}

				Draw_Window();

				break;

			case evNetwork:

				if (http_transfer > 0) {

					http_process stdcall (http_transfer);

					$push EAX

					ESI = http_transfer;

					bufpointer = ESI.http_msg.content_ptr;

					bufsize = ESI.http_msg.content_received;

					WB1.Parse(bufpointer, bufsize);

					$pop EAX

					if (EAX == 0) {

						ESI = http_transfer;

						// Handle redirects

						if (ESI.http_msg.status >= 300) && (ESI.http_msg.status < 400)

						{

							redirected++;

							if (redirected<=5)

							{

								http_find_header_field stdcall (http_transfer, #str_location);

								if (EAX!=0) {

									ESI = EAX;

									EDI = #URL;

									do {

										$lodsb;

										$stosb;

									} while (AL != 0) && (AL != 13) && (AL != 10));

									DSBYTE[EDI-1]='\0';

								}

							}

							else

							{

							//TODO: display error (too many redirects)

							}

						}

						else

						{

							redirected = 0;

						}

						// Loading the page is complete, free resources

						http_free stdcall (http_transfer);

						http_transfer=0;

						if (redirected>0)

						{

							WB1.GetNewUrl();

							strcpy(#editURL, #URL);

							BrowserHistory.current--;

							OpenPage();

						}

						else

						{

							Draw_Window();		// stop button => refresh button

						}

					}

				}

			default:

				if (downloader_id<>0)

				{

					if (GetProcessSlot(downloader_id)<>0) break;

					downloader_id=0;

					WB1.list.first = WB1.list.count = 0;

					WB1.ReadHtml(_WIN);

					Draw_Window();

				}

		}

	}

}

void SetElementSizes()

{

	address_box.width = Form.width - 266;

	WB1.list.SetSizes(0, 44, Form.width - 10 - scroll_wv.size_x, Form.cheight - 44, 0, 10);

	WB1.list.column_max = WB1.list.w - 30 / 6;

	WB1.list.visible = WB1.list.h - 3 / WB1.list.line_h - 2;

	WB1.DrawBuf.Init(WB1.list.x, WB1.list.y, WB1.list.w, WB1.list.h, WB1.list.line_h);

}

void Draw_Window()

{

	int j;

	DefineAndDrawWindow(215,100,WIN_W,WIN_H,0x73,0xE4DFE1,0,0);

	GetProcessInfo(#Form, SelfInfo);

	if (Form.status_window>2)

	{

		DrawTitle(#header);

		return;

	}

	if (Form.height<120) MoveSize(OLD,OLD,OLD,120);

	if (Form.width<280) MoveSize(OLD,OLD,280,OLD);

	PutPaletteImage(#toolbar,200,42,0,0,8,#toolbar_pal);

	if (GetProcessSlot(downloader_id)<>0) || (http_transfer > 0) _PutImage(88,10, 24,24, #stop_btn);

	DrawBar(200,0,Form.cwidth-200,43,0xE4DFE1);

	DrawBar(0,42,Form.cwidth,1,0xE2DBDC);

	DrawBar(0,43,Form.cwidth,1,0xD2CED0);

	for (j=0; j<5; j++) DefineButton(j*37+11, 7, 29, 29, 300+j+BT_HIDE, 0xE4DFE1);

	_PutImage(Form.cwidth-48,14, 40,19, #URLgoto);

	DefineButton(Form.cwidth-28,15, 18, 16, GOTOURL+BT_HIDE, 0xE4DFE1);

	DefineButton(Form.cwidth-47,15, 17, 16, SEARCHWEB+BT_HIDE, 0xE4DFE1);

	DrawRectangle(205,14,Form.cwidth-205-49,18,0x94AECE); //around adress bar

	DrawRectangle(206,15,Form.cwidth-205-50,16,0xE4ECF3);

	SetElementSizes();

	ShowPage();

	DefineButton(scroll_wv.start_x+1, scroll_wv.start_y+1, 16, 16, BTN_UP+BT_HIDE, 0xE4DFE1);

	DefineButton(scroll_wv.start_x+1, scroll_wv.start_y+scroll_wv.size_y-18, 16, 16, BTN_DOWN+BT_HIDE, 0xE4DFE1);

}

void Scan(int id)

{

	if (id >= 400) ProcessLinks(id);

	switch (id)

	{

		case 011: //Ctrk+K

			WB1.ReadHtml(_KOI);

			WB1.Parse(bufpointer, bufsize);

			return;

		case 021: //Ctrl+U

			WB1.ReadHtml(_UTF);

			WB1.Parse(bufpointer, bufsize);

			return;

		case 004: //Ctrl+D

			WB1.ReadHtml(_DOS);

			WB1.Parse(bufpointer, bufsize);

			return;

		case 005: //Win encoding

			WB1.ReadHtml(_WIN);

			WB1.Parse(bufpointer, bufsize);

			return;

		case 009: //free img cache

			ImgCache.Free();

			notify(IMAGES_CACHE_CLEARED);

			WB1.Parse(bufpointer, bufsize);

			return;

		case 003: //history

			strcpy(#URL, URL_HISTORY);

			OpenPage();

			return;

		case BACK:

			if (!BrowserHistory.GoBack()) return;

			OpenPage();

			return;

		case FORWARD:

			if (!BrowserHistory.GoForward()) return;

			OpenPage();

			return;

		case 052:  //F3

			if (strncmp(#URL,"http:",5)<>0) RunProgram("/rd/1/tinypad", #URL);

			else RunProgram("/rd/1/tinypad", #download_path);

			return;

		case 054: //F5

			IF(address_box.flags & 0b10) WB1.Parse(bufpointer, bufsize);

			return;

		case REFRESH:

			if (http_transfer<>0)

			{

				EAX = http_transfer;

				EAX = EAX.http_msg.content_ptr;		// get pointer to data

				$push	EAX							// save it on the stack

				http_free stdcall (http_transfer);	// abort connection

				$pop	EAX

				mem_Free(EAX);						// free data

				http_transfer=0;

				bufsize = 0;

			}

			if (GetProcessSlot(downloader_id)<>0)

			{

				KillProcess(downloader_id);

				pause(20);

				Draw_Window();

				return;

			}

			anchor_line_num=WB1.list.first;

			anchor[0]='|';

			OpenPage();

			return;

		case 014:

		case 020:

		case NEWTAB:

			MoveSize(190,80,OLD,OLD);

			RunProgram(#program_path, #URL);

			return;

		case HOME:

			strcpy(#editURL, "http://kolibrios.org/en/index.htm");

		case GOTOURL:

		case 0x0D: //enter

			if ((strstr(#editURL,"ttp://")==0) && (editURL[0]!='/')) strcpy(#URL,"http://"); else URL[0] = 0;

			strcat(#URL, #editURL);

			OpenPage();

			return;

		case SEARCHWEB:

			strcpy(#URL, #search_path);

			strcat(#URL, #editURL);

			OpenPage();

			return;

		case 183: //PgDown

			if (WB1.list.count < WB1.list.visible) return;

			IF(WB1.list.first == WB1.list.count - WB1.list.visible) return;

			WB1.list.first += WB1.list.visible + 2;

			IF(WB1.list.visible + WB1.list.first > WB1.list.count) WB1.list.first = WB1.list.count - WB1.list.visible;

			WB1.Parse(bufpointer, bufsize);

			return;

		case 184: //PgUp

			if (WB1.list.count < WB1.list.visible) return;

			IF(WB1.list.first == 0) return;

			WB1.list.first -= WB1.list.visible - 2;

			IF(WB1.list.first < 0) WB1.list.first = 0;

			WB1.Parse(bufpointer, bufsize);

			return;

		case 178:

		case BTN_UP:

			if (WB1.list.first <= 0) return;

			WB1.list.first--;

			WB1.Parse(bufpointer, bufsize);

			return;

		case 177:

		case BTN_DOWN:

			if (WB1.list.visible + WB1.list.first >= WB1.list.count) return;

			WB1.list.first++;

			WB1.Parse(bufpointer, bufsize);

			return;

		case 180: //home

			if (WB1.list.KeyHome()) WB1.Parse(bufpointer, bufsize);

			return;

		case 181: //end

			if (WB1.list.count < WB1.list.visible) return;

			if (WB1.list.KeyEnd()) WB1.Parse(bufpointer, bufsize);

			return;

	}

}

void ProcessLinks(int id)

{

	strcpy(#URL, PageLinks.GetURL(id-401));

	//$1 - Condition Script

	if (URL[0] == '$')

	{

		if (URL[1]=='-') && (condition_href) condition_href--;

		if (URL[1]=='+')

		{

			if (condition_href

		}

		if (URL[1]!='-') && (URL[1]!='+') condition_href = atoi(#URL+1);

		strcpy(#URL, BrowserHistory.CurrentUrl());

		ShowPage();

		return;

	}

	//#1

	if (URL[0] == '#')

	{

		strcpy(#anchor, #URL+strrchr(#URL, '#'));

		strcpy(#URL, BrowserHistory.CurrentUrl());

		WB1.list.first=WB1.list.count-WB1.list.visible;

		ShowPage();

		return;

	}

	//liner.ru#1

	if (strrchr(#URL, '#')!=-1)

	{

		strcpy(#anchor, #URL+strrchr(#URL, '#'));

		URL[strrchr(#URL, '#')-1] = 0x00;

	}

	WB1.GetNewUrl();

	if (!strcmp(#URL + strlen(#URL) - 4, ".gif")) || (!strcmp(#URL + strlen(#URL) - 4, ".png")) || (!strcmp(#URL + strlen(#URL) - 4, ".jpg"))

	{

		//if (strstr(#URL,"http:"))

		RunProgram("/sys/media/kiv", #URL);

		strcpy(#editURL, BrowserHistory.CurrentUrl());

		strcpy(#URL, BrowserHistory.CurrentUrl());

		return;

	}

	if (!strcmpn(#URL,"mailto:", 7))

	{

		notify(#URL);

		strcpy(#editURL, BrowserHistory.CurrentUrl());

		strcpy(#URL, BrowserHistory.CurrentUrl());

		return;

	}

	OpenPage();

	return;

}

void OpenPage()

{

	if (GetProcessSlot(downloader_id)<>0) PutPaletteImage(#toolbar,200,42,0,0,8,#toolbar_pal);

	KillProcess(downloader_id);

	strcpy(#editURL, #URL);

	BrowserHistory.AddUrl();

	strcpy(#header, #version);

	pre_text =0;

	if (!strncmp(#URL,"http:",5))

	{

		if (native_http)

		{

			http_get stdcall (#URL, 0);

			http_transfer = EAX;

			IF (http_transfer < 0) notify("Error from HTTP lib");

		}

		else

		{

			KillProcess(downloader_id);

			DeleteFile(#download_path);

			downloader_id = RunProgram("/sys/network/downloader", #URL);

			IF (downloader_id<0) notify("Error running Downloader. Internet unavilable.");

		}

		Draw_Window();

		return;

	}

	WB1.list.first = WB1.list.count =0;

	WB1.ReadHtml(_WIN);

	ShowPage();

}

void ShowPage()

{

	address_box.size = address_box.pos = strlen(#editURL);

	address_box.offset=0;

	edit_box_draw stdcall(#address_box);

	if (strcmp(#URL, URL_HISTORY)==0) ShowHistory(); else

	if (!bufsize)

	{

		PageLinks.Clear();

		if (GetProcessSlot(downloader_id)<>0)

			WB1.Parse(#loading, sizeof(loading));

		else

			WB1.Parse(#page_not_found, sizeof(page_not_found));

	}

	else

		WB1.Parse(bufpointer, bufsize);

	if (!header) strcpy(#header, #version);

	if (!strcmp(#version, #header)) DrawTitle(#header);

}

ShowHistory()

{

		int i;

		static int history_pointer;

		free(history_pointer);

		history_pointer = malloc(64000);

		strcat(history_pointer, " 
History
");

		strcat(history_pointer, "
Visited pages

");

		for (i=1; i

		{

			strcat(history_pointer, "");

			strcat(history_pointer, BrowserHistory.GetUrl(i));

			strcat(history_pointer, "
");

		}

		strcat(history_pointer, "
Cached images

");

		for (i=1; i

		{

			strcat(history_pointer, "
");

			strcat(history_pointer, #pics[i].path);

		}

		bufpointer = history_pointer;

		WB1.Parse(history_pointer, strlen(history_pointer));

}

stop: