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...
//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"
char homepage[] = FROM "html\homepage.htm";
#ifdef LANG_RUS
char version[]=" <20><><EFBFBD><EFBFBD><EFBFBD><E2AEA2> <20><><EFBFBD><EFBFBD> 1.0 Beta 5.5";
?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";
char accept_language[]= "Accept-Language: ru\n";
#else
char version[]=" Text-based Browser 1.0 Beta 5";
?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";
char accept_language[]= "Accept-Language: en\n";
#endif
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;
dword TAB_H = false; //19;
dword TAB_W = 150;
dword TOOLBAR_H = 31; //50;
dword STATUSBAR_H =15;
dword col_bg;
dword panel_color;
dword border_color;
pb progress_bar = {0, 10, 83, 150, 12, 0, 0, 100, 0xeeeEEE, 8072B7EBh, 0x9F9F9F};
byte souce_mode = false;
#include "..\TWB\TWB.c"
#include "menu_rmb.h"
#include "history.h"
#include "show_src.h"
char editURL[sizeof(URL)];
int mouse_twb;
edit_box address_box = {250,55,34,0xffffff,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:"
enum { BACK=300, FORWARD, REFRESH, HOME, NEWTAB, GOTOURL, SEARCHWEB, INPUT_CH, INPUT_BT, BTN_UP, BTN_DOWN };
struct struct_skin {
dword image, w, h;
int Load();
} skin;
int struct_skin::Load()
{
dword image_data;
skin.image = load_image(abspath("wv_skin.png"));
if (!skin.image) notify("WebView skin file 'wv_skin.png' not found, program will terminate");
skin.w = DSWORD[skin.image+4];
skin.h = DSWORD[skin.image+8];
image_data = DSDWORD[skin.image+24];
col_bg = DSDWORD[DSDWORD[skin.image+24]];
panel_color = DSDWORD[skin.w*4*4 + image_data];
border_color = DSDWORD[skin.w*4*7 + image_data];
progress_bar.progress_color = DSDWORD[skin.w*4*10 + image_data];
$and col_bg, 0x00ffffff
$and panel_color, 0x00ffffff
$and border_color, 0x00ffffff
$and progress_bar.progress_color, 0x00ffffff
}
void DrawProgress()
{
unsigned long btn;
//progressbar_draw stdcall(#progress_bar);
progress_bar.width = progress_bar.left = 0;
if (http_transfer == 0) return;
if (progress_bar.max) btn = address_box.width*progress_bar.value/progress_bar.max; else btn = 30;
DrawBar(address_box.left-1, address_box.top+14, btn, 2, progress_bar.progress_color);
}
void main()
{
unsigned long 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");
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");
skin.Load();
Form.width=WIN_W;
Form.height=WIN_H;
SetElementSizes();
if (!URL) strcpy(#URL, URL_SERVICE_HOME);
OpenPage();
SetEventMask(0xa7);
loop()
{
WaitEventTimeout(2);
switch(EAX & 0xFF)
{
CASE evMouse:
if (!CheckActiveProcess(Form.ID)) break;
//Edit URL
edit_box_mouse stdcall (#address_box);
m.get();
//Links hover
if (m.y>WB1.list.y) PageLinks.Hover(m.x, m.y, link_color_inactive, link_color_active, bg_color);
//Menu
if (m.y>WB1.list.y) && (m.y<Form.height) && (bufsize)
{
if (m.pkm)
{
show_menu = 1;
}
if (!m.pkm) && (show_menu)
{
show_menu = 0;
SwitchToAnotherThread();
CreateThread(#menu_rmb,#stak+4092);
break;
}
}
//Mouse scroll
if (m.vert)
{
if (WB1.list.MouseScroll(m.vert)) WB1.Parse();
}
//Drag scroller
scroll_wv.all_redraw = 0;
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();
}
break;
case evButton:
btn=GetButtonID();
if (btn==1) ExitProcess();
Scan(btn);
break;
case evKey:
key = GetKey();
if (address_box.flags & 0b10) SWITCH(key)
{ CASE 52: CASE 53: CASE 54: CASE 180: CASE 181: 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);
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); return; }
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_process stdcall (http_transfer);
$push EAX
ESI = http_transfer;
progress_bar.max = ESI.http_msg.content_length;
if (progress_bar.value != ESI.http_msg.content_received)
{
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
{
//TODO: display error (too many redirects)
}
}
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);
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();
Draw_Window(); // stop button => refresh button
}
}
}
}
}
}
void SetElementSizes()
{
address_box.top = TOOLBAR_H-TAB_H/2-7+TAB_H;
address_box.width = Form.cwidth - address_box.left - 25 - 22;
WB1.list.SetSizes(0, TOOLBAR_H, Form.width - 10 - scroll_wv.size_x, Form.cheight - TOOLBAR_H - STATUSBAR_H, 0, 11);
WB1.list.column_max = WB1.list.w - scroll_wv.size_x / 6;
WB1.list.visible = WB1.list.h - 5 / WB1.list.line_h;
WB1.DrawBuf.Init(WB1.list.x, WB1.list.y, WB1.list.w, WB1.list.line_h);
}
void Draw_Window()
{
int img_off;
// tab {
if (TAB_H)
{
DrawBar(0, 0, TAB_W, TAB_H+1, panel_color);
WriteText(5, 7, 0x80, 0xfdfdFd, "Index.htm");
WriteText(4, 6, 0x80, 0, "Index.htm");
DrawBar(TAB_W,0, Form.cwidth-TAB_W,TAB_H, col_bg);
DrawBar(TAB_W-1,TAB_H, Form.cwidth-TAB_W+1,1, border_color);
img_draw stdcall(skin.image, TAB_W-13, 0, 30, skin.h, 101, 0);
}
else DrawBar(0,0, Form.cwidth,1, col_bg);
// }
DrawBar(0,TAB_H+1, Form.cwidth,TOOLBAR_H-TAB_H-3, panel_color);
DrawBar(0,TOOLBAR_H-2, Form.cwidth,1, 0xe9e9e9);
DrawBar(0,TOOLBAR_H-1, Form.cwidth,1, border_color);
SetElementSizes();
DrawRectangle(address_box.left-1, address_box.top-1, address_box.width+2, 16,address_box.color);
DrawRectangle(address_box.left-2, address_box.top-2, address_box.width+4, 18,border_color);
// < / >
DefineButton(address_box.left-49, address_box.top-1, 23, skin.h-2, 300+BT_HIDE, 0);
DefineButton(address_box.left-25, address_box.top-1, 23, skin.h-2, 301+BT_HIDE, 0);
img_draw stdcall(skin.image, address_box.left-50, address_box.top-2, 48, skin.h, 3, 0);
// refrash
DefineButton(address_box.left+address_box.width+1, address_box.top-2, 16, skin.h-1, REFRESH+BT_HIDE+BT_NOFRAME, 0);
if (http_transfer > 0) img_off = 131; else img_off = 52;
img_draw stdcall(skin.image, address_box.left+address_box.width+1, address_box.top-2, 17, skin.h, img_off, 0);
// config
DefineButton(Form.cwidth-23, address_box.top-2, 17, skin.h-1, 312+BT_HIDE, 0);
img_draw stdcall(skin.image, Form.cwidth-22, address_box.top-2, 16, skin.h, 85, 0);
//status bar
DrawBar(0,Form.cheight - STATUSBAR_H, Form.cwidth,STATUSBAR_H, col_bg);
DrawBar(0,Form.cheight - STATUSBAR_H, Form.cwidth,1, border_color);
progress_bar.top = Form.cheight - STATUSBAR_H + 4;
ShowPage();
DrawRectangle(scroll_wv.start_x, scroll_wv.start_y, scroll_wv.size_x, scroll_wv.size_y-1, scroll_wv.bckg_col);
DrawProgress();
}
void ChangeCharset(byte new_charset)
{
BufEncode(new_charset);
WB1.Parse();
}
void Scan(int id)
{
action_buf=0;
if (id >= 400)
{
ProcessLinks(id);
return;
}
switch (id)
{
case 011: //Ctrk+K
ChangeCharset(_KOI);
return;
case 021: //Ctrl+U
ChangeCharset(_UTF);
return;
case 004: //Ctrl+D
ChangeCharset(_DOS);
return;
case 005: //Win encoding
ChangeCharset(_WIN);
return;
case 009: //free img cache
ImgCache.Free();
notify(IMAGES_CACHE_CLEARED);
WB1.Parse();
return;
case 003: //history
strcpy(#URL, URL_SERVICE_HISTORY);
OpenPage();
return;
case BACK:
if (!BrowserHistory.GoBack()) return;
OpenPage();
return;
case FORWARD:
if (!BrowserHistory.GoForward()) return;
OpenPage();
return;
case 052: //F3
WB1.list.first = 0;
ShowSource();
WB1.Parse();
break;
case 053: //F4
if (strncmp(#URL,"http:",5)==0)
{
WriteFile(bufsize, bufpointer, "/tmp0/1/WebView_tmp.htm");
if (EAX==0) RunProgram("/rd/1/tinypad", "/tmp0/1/WebView_tmp.htm");
}
else
{
RunProgram("/rd/1/tinypad", #URL);
}
return;
case 054: //F5
IF(address_box.flags & 0b10) return;
case REFRESH:
if (http_transfer > 0)
{
StopLoading();
Draw_Window();
}
else 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/");
case GOTOURL:
case 0x0D: //enter
if (!editURL[0]) return;
if ((strncmp(#editURL,"http:",5)!=0) && (editURL[0]!='/') && ((strncmp(#editURL,"WebView:",8)!=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();
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();
return;
case 178:
case BTN_UP:
if (WB1.list.first <= 0) return;
WB1.list.first--;
WB1.Parse();
return;
case 177:
case BTN_DOWN:
if (WB1.list.visible + WB1.list.first >= WB1.list.count) return;
WB1.list.first++;
WB1.Parse();
return;
case 180: //home
if (WB1.list.KeyHome()) WB1.Parse();
return;
case 181: //end
if (WB1.list.count < WB1.list.visible) return;
if (WB1.list.KeyEnd()) WB1.Parse();
return;
case 312:
SwitchToAnotherThread();
m.y = TOOLBAR_H-6;
m.x = Form.cwidth - 167;
CreateThread(#menu_rmb,#stak+4092);
}
}
void ProcessLinks(int id)
{
if (http_transfer > 0)
{
StopLoading();
BrowserHistory.current--;
}
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<condition_max) condition_href++; else notify(T_LAST_SLIDE);
}
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;
}
PageLinks.GetAbsoluteURL(#URL);
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 StopLoading()
{
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;
bufpointer = mem_Free(bufpointer);
}
progress_bar.value = 0;
img_draw stdcall(skin.image, address_box.left+address_box.width+1, address_box.top-2, 17, skin.h, 52, 0);
}
void SetPageDefaults()
{
strcpy(#header, #version);
pre_text = 0;
WB1.list.count = WB1.list.first = 0;
stroka = 0;
cur_encoding = _DEFAULT;
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)==0)
{
SetPageDefaults();
if (strcmp(#URL, URL_SERVICE_HOME)==0)
{
WB1.Prepare(#homepage, sizeof(homepage));
}
if (strcmp(#URL, URL_SERVICE_HISTORY)==0)
{
ShowHistory();
}
return;
}
if (strncmp(#URL,"http:",5)==0)
{
img_draw stdcall(skin.image, address_box.left+address_box.width+1, address_box.top-2, 17, skin.h, 131, 0);
http_get stdcall (#URL, #accept_language);
http_transfer = EAX;
if (http_transfer == 0)
{
StopLoading();
bufsize = 0;
bufpointer = mem_Free(bufpointer);
ShowPage();
return;
}
}
else
{
file_size stdcall (#URL);
bufsize = EBX;
if (bufsize)
{
mem_Free(bufpointer);
bufpointer = mem_Alloc(bufsize);
SetPageDefaults();
ReadFile(0, bufsize, bufpointer, #URL);
//ShowSource();
}
ShowPage();
}
}
DrawEditBox()
{
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);
}
void ShowPage()
{
DrawEditBox();
if (!bufsize)
{
PageLinks.Clear();
if (http_transfer<>0)
{
WB1.Prepare(#loading, sizeof(loading));
}
else
WB1.Prepare(#page_not_found, sizeof(page_not_found));
}
else
WB1.Parse();
if (!header) strcpy(#header, #version);
if (!strcmp(#version, #header)) DrawTitle(#header);
}
stop: