Subversion Repositories Kolibri OS

//HTML Viewer in C--

//Copyright 2007-2017 by Veliant & Leency

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

#ifndef AUTOBUILD

	#include "lang.h--"

#endif

//libraries

#define MEMSIZE 4096 * 200

#include "..\lib\gui.h"

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

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

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

#include "..\lib\collection.h"

#include "..\lib\menu.h"

#include "..\lib\random.h"

#include "..\lib\clipboard.h"

//*.obj libraries

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

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

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

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

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

//useful patterns

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

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

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

char homepage[] = FROM "html\\homepage.htm""\0";

#ifdef LANG_RUS

char version[]="����⮢� ��㧥� 1.73";

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

?define T_LAST_SLIDE "�� ��᫥���� ᫠��"

char loading[] = "����㧪� ��࠭���...
";

char page_not_found[] = FROM "html\\page_not_found_ru.htm""\0";

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

char rmb_menu[] =

"��ᬮ���� ��室���

������஢��� ��室���

�����

�������� ����㧮�";

char link_menu[] =

"����஢��� ��뫪�

������ ᮤ�ন��� ��뫪�";

#else

char version[]="Text-based Browser 1.73";

?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""\0";

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

char rmb_menu[] =

"View source

Edit source

History

Download Manager";

char link_menu[] =

"Copy link

Download link contents";

#endif

#define URL_SERVICE_HISTORY "WebView://history"

#define URL_SERVICE_HOME "WebView://home"

#define URL_SERVICE_SOURCE "WebView://source:"

proc_info Form;

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

int redirected = 0;

char stak[4096];

int action_buf;

dword http_transfer = 0;

dword http_buffer;

dword TOOLBAR_H = 40;

dword STATUSBAR_H = 15;

dword col_bg;

dword panel_color;

dword border_color;

progress_bar wv_progress_bar;

bool souce_mode = false;

bool open_in_a_new_window = false;

enum {

	BACK_BUTTON=1000,

	FORWARD_BUTTON,

	REFRESH_BUTTON,

	GOTOURL_BUTTON,

	SANDWICH_BUTTON,

	VIEW_SOURCE=1100,

	EDIT_SOURCE,

	VIEW_HISTORY,

	//FREE_IMG_CACHE,

	DOWNLOAD_MANAGER,

	COPY_LINK=1200,

	DOWNLOAD_LINK_CONTENTS,

};

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

#include "history.h"

#include "show_src.h"

#include "download_manager.h"

char editURL[sizeof(URL)];

int	mouse_twb;

edit_box address_box = {250,60,30,0xffffff,0x94AECE,0xffffff,0xffffff,0x10000000,sizeof(URL),#editURL,#mouse_twb,2,19,19};

void main()

{

	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);

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

	SetSkinColors();

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

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

	WB1.list.SetFont(8, 14, 10011000b);

	WB1.list.no_selection = true;

	SetEventMask(EVM_REDRAW + EVM_KEY + EVM_BUTTON + EVM_MOUSE + EVM_MOUSE_FILTER + EVM_STACK);

	loop() switch(WaitEvent())

	{

		case evMouse:

			edit_box_mouse stdcall (#address_box);

			mouse.get();

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

			{

				if (PageLinks.HoverAndProceed(mouse.x, WB1.list.first + mouse.y))

				&& (bufsize) && (mouse.pkm) && (mouse.up) {

					EventShowPageMenu(mouse.x, mouse.y);

					break;

				}

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

			}

			scrollbar_v_mouse (#scroll_wv);

			if (WB1.list.first != scroll_wv.position)

			{

				WB1.list.first = scroll_wv.position;

				WB1.DrawPage();

				break;

			}

			break;

		case evButton:

			ProcessEvent(GetButtonID());

			break;

		case evKey:

			GetKeys();

			if (address_box.flags & 0b10)

			{

				if (key_ascii == ASCII_KEY_ENTER) ProcessEvent(key_scancode); else {

					EAX = key_editbox;

					edit_box_key stdcall(#address_box);

				}

			}

			else

			{

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

				else ProcessEvent(key_scancode);

			}

			break;

		case evReDraw:

			if (menu.list.cur_y) {

				ProcessEvent(menu.list.cur_y);

				menu.list.cur_y = 0;

			}

			DefineAndDrawWindow(GetScreenWidth()-800/2-random(80),GetScreenHeight()-600/2-random(80),800,600,0x73,col_bg,0,0);

			GetProcessInfo(#Form, SelfInfo);

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

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

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

			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, "location\0");

							if (EAX!=0) {

								ESI = EAX;

								EDI = #URL;

								do {

									$lodsb;

									$stosb;

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

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

								if (!strncmp(#URL,"https://",8))

								{

									history.back();

									strcpy(#editURL, history.current());

									strcpy(#URL, history.current());

									ShowErrorMessageThatHttpsIsNotSupportedYet();

									StopLoading();

									break;

								}

							}

						}

						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;

						GetAbsoluteURL(#URL);

						history.back();

						strcpy(#editURL, #URL);

						DrawEditBoxWebView();

						OpenPage();

					}

					else

					{

						history.add(#URL);

						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();

					}

				}

			}

	}

}

void SetElementSizes()

{

	address_box.top = TOOLBAR_H/2-10;

	basic_line_h = calc(WB1.list.font_h * 130) / 100;

	address_box.width = Form.cwidth - address_box.left - 50;

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

		Form.cheight - TOOLBAR_H - STATUSBAR_H, basic_line_h);

	WB1.list.wheel_size = 7 * basic_line_h;

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

	WB1.list.visible = WB1.list.h;

	if (WB1.list.w!=WB1.DrawBuf.bufw) {

		WB1.DrawBuf.Init(WB1.list.x, WB1.list.y, WB1.list.w, 32700);

		ProcessEvent(REFRESH_BUTTON);

	}

}

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, 25,border_color);

	DefineButton(address_box.left-52, address_box.top-2, 24, skin.h-2, BACK_BUTTON+BT_HIDE, 0);

	DefineButton(address_box.left-27, address_box.top-2, 24, skin.h-2, FORWARD_BUTTON+BT_HIDE, 0);

	img_draw stdcall(skin.image, address_box.left-53, address_box.top-3, 51, 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-27, address_box.top-3, 23, skin.h-1, SANDWICH_BUTTON+BT_HIDE, 0);

	img_draw stdcall(skin.image, Form.cwidth-24, address_box.top-3, 17, skin.h, 87, 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(); DrawEditBoxWebView(); }

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

	DrawProgress();

}

void ProcessEvent(dword id__)

{

	switch (id__)

	{

		case 1:

			ExitProcess();

			return;

		case SCAN_CODE_BS:

		case BACK_BUTTON:

			if (history.back()) {

				strcpy(#URL, history.current());

				OpenPage();

			}

			return;

		case FORWARD_BUTTON:

			if (history.forward()) {

				strcpy(#URL, history.current());

				OpenPage();

			}

			return;

		case GOTOURL_BUTTON:

		case SCAN_CODE_ENTER:

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

			|| (!strncmp(#editURL,"https:",6)) || (!strncmp(#editURL,"WebView:",8))

			{

				strcpy(#URL, #editURL);

			}

			else

			{

				strlcpy(#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:

			EventShowPageMenu(Form.cwidth - 215, TOOLBAR_H-6);

			return;

		case VIEW_SOURCE:

			WB1.list.first = 0;

			ShowSource();

			WB1.LoadInternalPage(bufpointer, bufsize);

			break;

		case EDIT_SOURCE:

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

			{

				CreateFile(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) {

				downloader_edit = NULL;

				CreateThread(#Downloader,#downloader_stak+4092);

			}

			return;

		case COPY_LINK:

			Clipboard__CopyText(PageLinks.GetURL(PageLinks.active));

			notify("'URL copied to clipboard'O");

			return;

		case DOWNLOAD_LINK_CONTENTS:

			if (!downloader_opened) {

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

				CreateThread(#Downloader,#downloader_stak+4092);

			}

			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;

	DrawEditBoxWebView();

}

void SetPageDefaults()

{

	strcpy(#header, #version);

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

	cur_encoding = CH_NULL;

	if (o_bufpointer) o_bufpointer = free(o_bufpointer);

}

void OpenPage()

{

	StopLoading();

	souce_mode = false;

	strcpy(#editURL, #URL);

	history.add(#URL);

	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();

		DrawEditBoxWebView();

		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();

	}

}

DrawEditBoxWebView()

{

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

	DrawBar(address_box.left-2, address_box.top, 2, 22, 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 = 54;

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

}

void ShowPage()

{

	DrawEditBoxWebView();

	debugval("bufsize", bufsize);

	if (!bufsize)

	{

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

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

	}

	else

	{

		WB1.Prepare();

	}

}

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+20, btn, 2, wv_progress_bar.progress_color);

}

char anchor[256];

void ClickLink()

{

	if (http_transfer > 0)

	{

		StopLoading();

		history.back();

	}

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

	//#1

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

	{

		if (URL[1] == NULL) {

			WB1.list.first = 0;

			strcpy(#URL, history.current());

		}

		else {

			strlcpy(#anchor, #URL+strrchr(#URL, '#'), sizeof(anchor));

			strcpy(#URL, history.current());

		}

		ShowPage();

		return;

	}

	//liner.ru#1

	if (strrchr(#URL, '#')!=0)

	{

		strlcpy(#anchor, #URL+strrchr(#URL, '#'), sizeof(anchor));

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

	}

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

	{

		notify(#URL);

		strcpy(#editURL, history.current());

		strcpy(#URL, history.current());

		return;

	}

	if (!strncmp(#URL,"https://",8))

	{

		ShowErrorMessageThatHttpsIsNotSupportedYet();

		strcpy(#editURL, history.current());

		strcpy(#URL, history.current());

		return;

	}

	GetAbsoluteURL(#URL);

	if (strncmp(#URL,"http://",7)!=0)

	{

		if (UrlExtIs(".htm")!=true) && (UrlExtIs(".html")!=true)

		{

			RunProgram("/sys/@open", #URL);

			strcpy(#editURL, history.current());

			strcpy(#URL, history.current());

			return;

		}

	}

	else

	{

		if (UrlExtIs(".png")==true) || (UrlExtIs(".gif")==true) || (UrlExtIs(".jpg")==true)

		|| (UrlExtIs(".zip")==true) || (UrlExtIs(".kex")==true) || (UrlExtIs(".pdf")==true)

		|| (UrlExtIs(".7z")==true) {

			if (!downloader_opened) {

				strcpy(#downloader_edit, #URL);

				CreateThread(#Downloader,#downloader_stak+4092);

				strcpy(#editURL, history.current());

				strcpy(#URL, history.current());

			}

			else notify("'WebView\nPlease, start a new download only when previous ended.'Et");

			return;

		}

	}

	if (open_in_a_new_window)

	{

		RunProgram(#program_path, #URL);

		strcpy(#editURL, history.current());

		strcpy(#URL, history.current());

	}

	else

	{

		OpenPage();

	}

	open_in_a_new_window = false;

}

void EventShowPageMenu(dword _left, _top)

{

	menu.show(Form.left+_left-6,Form.top+_top+skin_height+3, 220, #rmb_menu, VIEW_SOURCE);

}

void EventShowLinkMenu(dword _left, _top)

{

	menu.show(Form.left+_left-6,Form.top+_top+skin_height+3, 220, #link_menu, COPY_LINK);

}

void ShowErrorMessageThatHttpsIsNotSupportedYet()

{

	notify("'HTTPS protocol is not supported yet' -E");

}

DrawStatusBar(dword _status_text)

{

	status_text.start_x = wv_progress_bar.left + wv_progress_bar.width + 10;

	status_text.start_y = Form.cheight - STATUSBAR_H + 3;

	status_text.area_size_x = Form.cwidth - status_text.start_x -3;

	DrawBar(status_text.start_x, status_text.start_y, status_text.area_size_x, 9, col_bg);

	status_text.text_pointer = _status_text;

	PathShow_prepare stdcall(#status_text);

	PathShow_draw stdcall(#status_text);

}

stop: