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//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\gui.h"

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

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

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

//*.obj libraries

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

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

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

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

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

//useful patterns

#include "..\lib\patterns\libimg_load_skin.h"

char homepage[] = FROM "html\\homepage.htm";

#ifdef LANG_RUS

	char version[]=" ����⮢� ��㧥� 1.35";

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

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

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

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

	char accept_language[]= "Accept-Language: ru\n";

#else

	char version[]=" Text-based Browser 1.35";

	?define IMAGES_CACHE_CLEARED "Images cache cleared"

	?define T_LAST_SLIDE "This slide is the last"

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

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

	char accept_language[]= "Accept-Language: en\n";

#endif

proc_info Form;

#define WIN_W 799

#define WIN_H 559

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

char str_location[]="location\0";

int redirected = 0;

char stak[4096];

int action_buf;

dword http_transfer = 0;

dword http_buffer;

dword TOOLBAR_H = 33;

dword STATUSBAR_H = 15;

dword col_bg;

dword panel_color;

dword border_color;

progress_bar wv_progress_bar;

byte souce_mode = false;

enum {

	BACK_BUTTON=1000,

	FORWARD_BUTTON,

	REFRESH_BUTTON,

	GOTOURL_BUTTON,

	SANDWICH_BUTTON

};

enum {

	VIEW_SOURCE=1100,

	EDIT_SOURCE,

	VIEW_HISTORY,

	FREE_IMG_CACHE,

	DOWNLOAD_MANAGER

};

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

#include "menu.h"

#include "history.h"

#include "show_src.h"

#include "network_get.h"

#include "downloader.h"

char editURL[sizeof(URL)];

int	mouse_twb;

edit_box address_box = {250,56,34,0xffffff,0x94AECE,0xffffff,0xffffff,0,sizeof(URL),#editURL,#mouse_twb,2,19,19};

#define URL_SERVICE_HISTORY "WebView://history"

#define URL_SERVICE_HOME "WebView://home"

#define URL_SERVICE_SOURCE "WebView://source:"

libimg_image skin;

void main()

{

	dword btn;

	int half_scroll_size;

	int scroll_used=0, show_menu;

	CursorPointer.Load(#CursorFile);

	load_dll(boxlib, #box_lib_init,0);

	load_dll(libio, #libio_init,1);

	load_dll(libimg, #libimg_init,1);

	load_dll(libHTTP, #http_lib_init,1);

	load_dll(iconv_lib, #iconv_open,0);

	//load_dll(kmenu, #akmenu_init,0);

	Libimg_LoadImage(#skin, abspath("wv_skin.png"));

	SetSkinColors();

	CreateDir("/tmp0/1/downloads");

	if (param) strcpy(#URL, #param); else strcpy(#URL, URL_SERVICE_HOME);

	WB1.DrawBuf.zoom = 1;

	WB1.list.SetFont(8, 14, 10111000b);

	SetEventMask(0xa7);

	BEGIN_LOOP_APPLICATION:

		WaitEventTimeout(2);

		switch(EAX & 0xFF)

		{

			CASE evMouse:

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

				edit_box_mouse stdcall (#address_box);

				mouse.get();

				if (WB1.list.MouseOver(mouse.x, mouse.y))

				{

					PageLinks.Hover(mouse.x, WB1.list.first*WB1.list.line_h + mouse.y, link_color_inactive, link_color_active, bg_color);

					if (bufsize) && (mouse.pkm) && (mouse.up) { CreateThread(#menu_rmb,#stak+4092); break; }

					if (WB1.list.MouseScroll(mouse.vert)) WB1.DrawPage();

					if (mouse.down) && (PageLinks.active>=0)

					{

						DrawRectangle(PageLinks.links[PageLinks.active].x, PageLinks.links[PageLinks.active].y,

						PageLinks.links[PageLinks.active].w, PageLinks.links[PageLinks.active].h, 0);

						ClickLink();

					}

				}

				//Drag scroller

				scroll_wv.all_redraw = 0;

				if (!mouse.lkm) scroll_used=0;

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

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

				&& (WB1.list.count>WB1.list.visible) && (mouse.lkm) scroll_used=1;

				if (scroll_used)

				{

					mouse.y = mouse.y + 5;

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

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

					btn=WB1.list.first;

					WB1.list.first = mouse.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.DrawPage();

				}

				break;

			case evButton:

				btn=GetButtonID();

				if (btn==1)	ExitProcess();

				Scan(btn);

				break;

			case evKey:

				GetKeys();

				if (address_box.flags & 0b10)

				{

					if (key_ascii == ASCII_KEY_ENTER) Scan(key_scancode); else

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

				}

				else

				{

					Scan(key_scancode);

				}

				break;

			case evReDraw:

				if (action_buf) Scan(action_buf);

				DefineAndDrawWindow(GetScreenWidth()-WIN_W/2,GetScreenHeight()-WIN_H/2,WIN_W,WIN_H,0x73,col_bg,0,0);

				GetProcessInfo(#Form, SelfInfo);

				if (Form.status_window>2) { DrawTitle(#header); break; }

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

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

				Draw_Window();

				break;

			case evNetwork:

				if (http_transfer > 0) {

					http_receive stdcall (http_transfer);

					$push EAX

					ESI = http_transfer;

					wv_progress_bar.max = ESI.http_msg.content_length;

					if (wv_progress_bar.value != ESI.http_msg.content_received)

					{

						wv_progress_bar.value = ESI.http_msg.content_received;

						DrawProgress();

					}

					$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

							{

								notify("Too many redirects");

								StopLoading();

								break;

							}

						}

						else

						{

							redirected = 0;

						}

						// Loading the page is complete, free resources

						if (redirected>0)

						{

							http_free stdcall (http_transfer);

							http_transfer=0;

							PageLinks.GetAbsoluteURL(#URL);

							BrowserHistory.current--;

							strcpy(#editURL, #URL);

							DrawEditBox();

							OpenPage();

						}

						else

						{

							BrowserHistory.AddUrl();

							ESI = http_transfer;

							bufpointer = ESI.http_msg.content_ptr;

							bufsize = ESI.http_msg.content_received;

							http_free stdcall (http_transfer);

							http_transfer=0;

							SetPageDefaults();

							ShowPage();

						}

					}

				}

		}

	goto BEGIN_LOOP_APPLICATION;

}

void SetElementSizes()

{

	address_box.top = TOOLBAR_H/2-7;

	address_box.width = Form.cwidth - address_box.left - 25 - 22;

	WB1.list.SetSizes(0, TOOLBAR_H, Form.width - 10 - scroll_wv.size_x / WB1.DrawBuf.zoom,

		Form.cheight - TOOLBAR_H - STATUSBAR_H, WB1.list.font_h + WB1.DrawBuf.zoom + WB1.DrawBuf.zoom * WB1.DrawBuf.zoom);

	WB1.list.wheel_size = 7;

	WB1.list.column_max = WB1.list.w - scroll_wv.size_x / WB1.list.font_w;

	WB1.list.visible = WB1.list.h - 5 / WB1.list.line_h;

	if (WB1.list.w!=WB1.DrawBuf.bufw) WB1.DrawBuf.Init(WB1.list.x, WB1.list.y, WB1.list.w, WB1.list.h * 20);

}

void Draw_Window()

{

	DrawBar(0,0, Form.cwidth,TOOLBAR_H-2, panel_color);

	DrawBar(0,TOOLBAR_H-2, Form.cwidth,1, 0xD7D0D3);

	DrawBar(0,TOOLBAR_H-1, Form.cwidth,1, border_color);

	SetElementSizes();

	DrawRectangle(address_box.left-3, address_box.top-3, address_box.width+5, 20,border_color);

	DefineButton(address_box.left-50, address_box.top-2, 23, skin.h-2, BACK_BUTTON+BT_HIDE, 0);

	DefineButton(address_box.left-26, address_box.top-2, 23, skin.h-2, FORWARD_BUTTON+BT_HIDE, 0);

	img_draw stdcall(skin.image, address_box.left-51, address_box.top-3, 48, skin.h, 3, 0);

	DefineButton(address_box.left+address_box.width+1, address_box.top-3, 16, skin.h-1, REFRESH_BUTTON+BT_HIDE+BT_NOFRAME, 0);

	DefineButton(Form.cwidth-24, address_box.top-3, 19, skin.h-1, SANDWICH_BUTTON+BT_HIDE, 0);

	img_draw stdcall(skin.image, Form.cwidth-22, address_box.top-3, 16, skin.h, 85, 0);

	DrawBar(0,Form.cheight - STATUSBAR_H, Form.cwidth,STATUSBAR_H, col_bg);

	DrawBar(0,Form.cheight - STATUSBAR_H, Form.cwidth,1, border_color);

	if (!header) OpenPage(); else { WB1.DrawPage(); DrawEditBox(); }

	DrawRectangle(scroll_wv.start_x, scroll_wv.start_y, scroll_wv.size_x, scroll_wv.size_y-1, scroll_wv.bckg_col);

	DrawProgress();

}

void Scan(dword id__)

{

	action_buf=0;

	switch (id__)

	{

		case SCAN_CODE_BS:

		case BACK_BUTTON:

			if (!BrowserHistory.GoBack()) return;

			OpenPage();

			return;

		case FORWARD_BUTTON:

			if (!BrowserHistory.GoForward()) return;

			OpenPage();

			return;

		case SCAN_CODE_HOME:

		case SCAN_CODE_END:

		case SCAN_CODE_PGUP:

		case SCAN_CODE_PGDN:

			if (WB1.list.ProcessKey(key_scancode)) WB1.DrawPage();

			return;

		case SCAN_CODE_UP:

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

			WB1.list.first--;

			WB1.DrawPage();

			return;

		case SCAN_CODE_DOWN:

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

			WB1.list.first++;

			WB1.DrawPage();

			return;

		case GOTOURL_BUTTON:

		case SCAN_CODE_ENTER:

			if (!strncmp(#editURL,"http:",5)) || (editURL[0]=='/') || (!strncmp(#editURL,"WebView:",9))

			{

				strcpy(#URL, #editURL);

			}

			else

			{

				strncpy(#URL,"http://",7);

				strcat(#URL, #editURL);

			}

			OpenPage();

			return;

		case 063: //F5

			IF(address_box.flags & 0b10) return;

		case REFRESH_BUTTON:

			if (http_transfer > 0)

			{

				StopLoading();

				Draw_Window();

			}

			else OpenPage();

			return;

		case SANDWICH_BUTTON:

			mouse.y = TOOLBAR_H-6;

			mouse.x = Form.cwidth - 167;

			CreateThread(#menu_rmb,#stak+4092);

			return;

		case VIEW_SOURCE:

			WB1.list.first = 0;

			ShowSource();

			WB1.DrawPage();

			break;

		case EDIT_SOURCE:

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

			{

				WriteFile(bufsize, bufpointer, "/tmp0/1/WebView_tmp.htm");

				if (!EAX) RunProgram("/rd/1/tinypad", "/tmp0/1/WebView_tmp.htm");

			}

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

			return;

		case FREE_IMG_CACHE:

			ImgCache.Free();

			notify(IMAGES_CACHE_CLEARED);

			WB1.DrawPage();

			return;

		case VIEW_HISTORY:

			strcpy(#URL, URL_SERVICE_HISTORY);

			OpenPage();

			return;

		case DOWNLOAD_MANAGER:

			if (!downloader_opened) {

				strncpy(#DL_URL, "http://",7);

				CreateThread(#Downloader,#downloader_stak+4092);

			}

			return; /*

		case 020:

		case NEWTAB:

			MoveSize(190,80,OLD,OLD);

			RunProgram(#program_path, #URL);

			return;

		case SEARCHWEB_BUTTON:

			sprintf(#URL,"%s%s",#search_path,#editURL);

			OpenPage();

			return; */

	}

}

void ClickLink()

{

	if (http_transfer > 0)

	{

		StopLoading();

		BrowserHistory.current--;

	}

	strcpy(#URL, PageLinks.GetURL(PageLinks.active));

	//#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;

	}

	PageLinks.GetAbsoluteURL(#URL);

	if (UrlExtIs(".png")==1) || (UrlExtIs(".gif")==1) || (UrlExtIs(".jpg")==1) || (UrlExtIs(".zip")==1) || (UrlExtIs(".kex")==1)

	|| (UrlExtIs(".7z")==1) || (UrlExtIs("netcfg")==1)

	{

		//notify(#URL);

		if (!strncmp(#URL,"http://", 7))

		{

			strcpy(#DL_URL, #URL);

			CreateThread(#Downloader,#downloader_stak+4092);

		}

		else RunProgram("@open", #URL);

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

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

		return;

	}

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

	{

		notify(#URL);

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

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

		return;

	}

	OpenPage();

	return;

}

void StopLoading()

{

	if (http_transfer)

	{

		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

		free(EAX);						// free data

		http_transfer=0;

		bufsize = 0;

		bufpointer = free(bufpointer);

	}

	wv_progress_bar.value = 0;

	img_draw stdcall(skin.image, address_box.left+address_box.width+1, address_box.top-3, 17, skin.h, 52, 0);

}

void SetPageDefaults()

{

	strcpy(#header, #version);

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

	stroka = 0;

	cur_encoding = CH_NULL;

	if (o_bufpointer) o_bufpointer = free(o_bufpointer);

	anchor_line_num=WB1.list.first;

	anchor[0]='|';

}

void OpenPage()

{

	StopLoading();

	souce_mode = false;

	strcpy(#editURL, #URL);

	BrowserHistory.AddUrl();

	if (!strncmp(#URL,"WebView:",8))

	{

		SetPageDefaults();

		if (!strcmp(#URL, URL_SERVICE_HOME)) WB1.LoadInternalPage(#homepage, sizeof(homepage));

		else if (!strcmp(#URL, URL_SERVICE_HISTORY)) ShowHistory();

		DrawEditBox();

		return;

	}

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

	{

		img_draw stdcall(skin.image, address_box.left+address_box.width+1, address_box.top-3, 17, skin.h, 131, 0);

		http_get stdcall (#URL, 0, 0, #accept_language);

		http_transfer = EAX;

		if (!http_transfer)

		{

			StopLoading();

			bufsize = 0;

			bufpointer = free(bufpointer);

			ShowPage();

			return;

		}

	}

	else

	{

		file_size stdcall (#URL);

		bufsize = EBX;

		if (bufsize)

		{

			free(bufpointer);

			bufpointer = malloc(bufsize);

			SetPageDefaults();

			ReadFile(0, bufsize, bufpointer, #URL);

		}

		ShowPage();

	}

}

DrawEditBox()

{

	DrawWideRectangle(address_box.left-2, address_box.top-2, address_box.width+3, 19, 2, address_box.color);

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

	address_box.offset = 0;

	edit_box_draw stdcall(#address_box);

	if (http_transfer > 0) EAX = 131; else EAX = 52;

	img_draw stdcall(skin.image, address_box.left+address_box.width+1, address_box.top-3, 17, skin.h, EAX, 0);

}

void ShowPage()

{

	DrawEditBox();

	if (!bufsize)

	{

		PageLinks.Clear();

		if (http_transfer)

		{

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

		}

		else

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

	}

	else

	{

		WB1.Prepare();

	}

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

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

}

byte UrlExtIs(dword ext)

{

	if (!strcmpi(#URL + strlen(#URL) - strlen(ext), ext)) return true;

	return false;

}

int SetSkinColors()

{

	dword image_data;

	image_data = DSDWORD[skin.image+24];

	col_bg = DSDWORD[image_data];

	panel_color  = DSDWORD[skin.w*4*4 + image_data];

	border_color = DSDWORD[skin.w*4*7 + image_data];

	wv_progress_bar.progress_color = DSDWORD[skin.w*4*10 + image_data];

	$and col_bg, 0x00ffffff

	$and panel_color, 0x00ffffff

	$and border_color, 0x00ffffff

	$and wv_progress_bar.progress_color, 0x00ffffff

}

void DrawProgress()

{

	unsigned long btn;

	if (http_transfer == 0) return;

	if (wv_progress_bar.max) btn = address_box.width*wv_progress_bar.value/wv_progress_bar.max; else btn = 30;

	DrawBar(address_box.left-2, address_box.top+15, btn, 2, wv_progress_bar.progress_color);

}

char downloader_stak[4096];

stop: