kolibrios/programs/cmm/browser/WebView.c

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//HTML Viewer in C--
//Copyright 2007-2013 by Veliant & Leency
//Asper, lev, Lrz, Barsuk, Nable...
#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"
//*.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"
#include "..\lib\patterns\history.h"
#include "..\lib\patterns\http_downloader.h"
char homepage[] = FROM "html\\homepage.htm""\0";
#ifdef LANG_RUS
char version[]="<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> 1.6";
?define IMAGES_CACHE_CLEARED "<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><E2A8AD> <20><><EFBFBD>"
?define T_LAST_SLIDE "<EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><E1ABA5><EFBFBD><EFBFBD><><E1ABA0>"
char loading[] = "<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><E0A0AD><EFBFBD>...<br>";
char page_not_found[] = FROM "html\\page_not_found_ru.htm""\0";
char accept_language[]= "Accept-Language: ru\n";
char rmb_menu[] =
"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><E5AEA4><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>";
#else
char version[]="Text-based Browser 1.6";
?define IMAGES_CACHE_CLEARED "Images cache cleared"
?define T_LAST_SLIDE "This slide is the last"
char loading[] = "Loading...<br>";
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
Free image cache
Download Manager";
#endif
char link_menu[] =
"Copy link
Download link";
#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
};
#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(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))
{
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))
{
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();
}
}
}
}
goto BEGIN_LOOP_APPLICATION;
}
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))
{
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) {
downloader_edit = NULL;
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();
}
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) {
strcpy(#downloader_edit, #URL);
CreateThread(#Downloader,#downloader_stak+4092);
strcpy(#editURL, history.current());
strcpy(#URL, history.current());
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, 180, #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: