kolibrios/programs/cmm/TWB/TWB.c
Kirill Lipatov (Leency) cb9906f10d WebView 1.0 Beta 4: fixes, view page source
git-svn-id: svn://kolibrios.org@4718 a494cfbc-eb01-0410-851d-a64ba20cac60
2014-03-30 11:57:13 +00:00

641 lines
16 KiB
C
Raw Blame History

dword bufpointer;
dword o_bufpointer;
dword bufsize;
#define URL param
scroll_bar scroll_wv = { 15,200,398,44,0,2,115,15,0,0xeeeeee,0xBBBbbb,0xeeeeee,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1};
char header[2048];
struct TWebBrowser {
llist list;
DrawBufer DrawBuf;
void Prepare();
void Parse();
void SetTextStyle();
void DrawPage();
void DrawScroller();
void NewLine();
void Perenos();
byte end_parsing;
} WB1;
byte b_text, i_text, u_text, s_text, pre_text, blq_text, li_text, li_tab,
link, ignor_text, cur_encoding, text_align, t_html, t_body;
byte condition_text_active, condition_text_val, condition_href, condition_max;
enum { _WIN, _DOS, _KOI, _UTF, _DEFAULT };
enum { ALIGN_LEFT, ALIGN_CENTER, ALIGN_RIGHT};
dword text_colors[300];
dword text_color_index;
dword link_color_inactive;
dword link_color_active;
dword bg_color;
int stroka;
int stolbec;
int tab_len;
int anchor_line_num;
char line[500];
char tag[100];
char tagparam[10000];
char parametr[1200];
char options[4096];
char anchor[256];
#include "..\TWB\history.h"
#include "..\TWB\links.h"
#include "..\TWB\colors.h"
#include "..\TWB\unicode_tags.h"
#include "..\TWB\img_cache.h"
#include "..\TWB\parce_tag.h"
#include "..\TWB\table.h"
//=======================================================================
void TWebBrowser::DrawPage()
{
int start_x, start_y, line_length, stolbec_len, magrin_left=5;
if (!header)
{
strcpy(#header, #line);
strcat(#header, " -");
strcat(#header, #version);
line = 0;
return;
}
if (t_html) && (!t_body) return;
if (stroka >= 0) && (stroka - 2 < list.visible) && (line) && (!anchor)
{
start_x = stolbec * 6 + list.x + magrin_left;
start_y = stroka * list.line_h + list.y + magrin_left;
stolbec_len = strlen(#line);
line_length = stolbec_len * 6;
WriteBufText(start_x, 0, 0x88, text_colors[text_color_index], #line, buf_data);
IF (b_text) WriteBufText(start_x+1, 0, 0x88, text_colors[text_color_index], #line, buf_data);
IF (i_text) { stolbec++; DrawBuf.Skew(start_x, 0, line_length, list.line_h); }
IF (s_text) DrawBuf.DrawBar(start_x, 4, line_length, 1, text_colors[text_color_index]);
IF (u_text) DrawBuf.DrawBar(start_x, 8, line_length, 1, text_colors[text_color_index]);
IF (link) {
UnsafeDefineButton(start_x-2, start_y-1, line_length + 3, 10, PageLinks.count + 400 + BT_HIDE, 0xB5BFC9);
DrawBuf.DrawBar(start_x, 8, line_length, 1, text_colors[text_color_index]);
PageLinks.AddText(#line, line_length, list.line_h, UNDERLINE);
}
stolbec += stolbec_len;
}
}
//=======================================================================
void BufEncode(int set_new_encoding)
{
int bufpointer_realsize;
cur_encoding = set_new_encoding;
if (o_bufpointer==0)
{
o_bufpointer = malloc(bufsize);
strcpy(o_bufpointer, bufpointer);
}
else
{
strcpy(bufpointer, o_bufpointer);
}
if (set_new_encoding==_WIN) wintodos(bufpointer);
if (set_new_encoding==_UTF) utf8rutodos(bufpointer);
if (set_new_encoding==_KOI) koitodos(bufpointer);
}
void TWebBrowser::Prepare(dword bufpos, in_filesize){
bufsize = in_filesize;
bufpointer = bufpos;
Parse();
}
void TWebBrowser::Parse(){
word bukva[2];
int j;
byte ignor_param;
char temp[768];
dword bufpos = bufpointer;
b_text = i_text = u_text = s_text = blq_text = t_html = t_body =
li_text = link = ignor_text = text_color_index = text_colors[0] = li_tab =
condition_text_val = condition_text_active = 0; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
end_parsing = false;
condition_max = 255;
text_align = ALIGN_LEFT;
link_color_inactive = 0x0000FF;
link_color_active = 0xFF0000;
bg_color = 0xFFFFFF;
DrawBuf.Fill(bg_color);
PageLinks.Clear();
strcpy(#header, #version);
stroka = -list.first;
stolbec = 0;
line = 0;
if (pre_text<>2)
{
pre_text=0;
if (!strcmp(#URL + strlen(#URL) - 4, ".txt")) pre_text = 1;
if (!strcmp(#URL + strlen(#URL) - 4, ".mht")) ignor_text = 1;
}
for ( ; (bufpointer+bufsize > bufpos) && (ESBYTE[bufpos]!=0); bufpos++;)
{
if (end_parsing) break;
bukva = ESBYTE[bufpos];
if (ignor_text) && (bukva!='<') continue;
if (condition_text_active) && (condition_text_val != condition_href) && (bukva!='<') continue;
switch (bukva)
{
case 0x0a:
if (pre_text)
{
chrcat(#line, ' ');
bukva = temp = NULL;
Perenos();
}
case '\9':
if (pre_text) //<2F><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> 0x0d
{
tab_len=strlen(#line)/8;
tab_len=tab_len*8;
tab_len=8+tab_len-strlen(#line);
for (j=0; j<tab_len; j++;) chrcat(#line,' ');
break;
}
goto DEFAULT_MARK;
case '=': //quoted printable
if (strcmp(#URL + strlen(#URL) - 4, ".mht")<>0) goto DEFAULT_MARK;
temp[0] = ESBYTE[bufpos+1];
temp[1] = ESBYTE[bufpos+2];
temp[2] = '\0';
if (bukva = Hex2Symb(#temp))
{
bufpos+=2;
goto DEFAULT_MARK;
}
break;
case '&': //&nbsp; and so on
bufpos++;
tag=0;
for (j=0; (ESBYTE[bufpos]<>';') && (j<7); j++, bufpos++;)
{
bukva = ESBYTE[bufpos];
chrcat(#tag, bukva);
}
if (bukva = GetUnicodeSymbol()) goto DEFAULT_MARK;
break;
case '<':
bufpos++; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <
tag = parametr = tagparam = ignor_param = NULL;
if (ESBYTE[bufpos] == '!') //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <!-- -->, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
bufpos++;
if (ESBYTE[bufpos] == '-')
{
HH_:
do
{
bufpos++;
if (bufpointer + bufsize <= bufpos) break 2;
}
while (ESBYTE[bufpos] <>'-');
bufpos++;
if (ESBYTE[bufpos] <>'-') goto HH_;
}
}
while (ESBYTE[bufpos] !='>') && (bufpos < bufpointer + bufsize) //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
bukva = ESBYTE[bufpos];
if (bukva == '\9') || (bukva == '\x0a') || (bukva == '\x0d') bukva = ' ';
if (!ignor_param) && (bukva <>' ')
{
if (strlen(#tag)<sizeof(tag)) strcat(#tag, #bukva);
}
else
{
ignor_param = true;
if (!ignor_text) && (strlen(#tagparam)+1<sizeof(tagparam)) strcat(#tagparam, #bukva);
}
bufpos++;
}
strlwr(#tag);
if (condition_text_active) && (condition_text_val != condition_href)
{
if (strcmp(#tag, "/condition")!=0) break;
}
if (tag[strlen(#tag)-1]=='/') tag[strlen(#tag)-1]=NULL; //for br/
if (tagparam) && (strlen(#tagparam) < 4000) GetNextParam();
if (stolbec + strlen(#line) > list.column_max) Perenos();
DrawPage();
line = NULL;
if (tag) SetTextStyle(list.x + 5, stroka * list.line_h + list.y + 5); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
tag = parametr = tagparam = ignor_param = NULL;
break;
default:
DEFAULT_MARK:
if (bukva<=15) bukva=' ';
if (!pre_text) && (bukva == ' ')
{
if (line[strlen(#line)-1]==' ') break; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if (!stolbec) && (!line) break; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
}
if (strlen(#line)<sizeof(line)) chrcat(#line, bukva);
if (stolbec + strlen(#line) > list.column_max) Perenos();
}
}
DrawPage();
NewLine();
DrawBar(list.x, stroka * list.line_h + list.y + 5, list.w, -stroka * list.line_h + list.h - 5, bg_color);
DrawBar(list.x, list.visible * list.line_h + list.y + 4, list.w, -list.visible * list.line_h + list.h - 4, bg_color);
if (list.first == 0) list.count = stroka;
if (anchor) //<2F><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
{
anchor=NULL;
list.first=anchor_line_num;
Parse();
}
DrawScroller();
}
void TWebBrowser::Perenos()
{
int perenos_num;
char new_line_text[4096];
perenos_num = strrchr(#line, ' ');
if (!perenos_num) && (strlen(#line)>list.column_max) perenos_num=list.column_max;
strcpy(#new_line_text, #line + perenos_num);
line[perenos_num] = 0x00;
if (stroka-1 > list.visible) && (list.first <>0) end_parsing=true;
DrawPage();
strcpy(#line, #new_line_text);
NewLine();
}
char oldtag[100];
void TWebBrowser::SetTextStyle(int left1, top1) {
dword hr_color;
byte opened;
byte meta_encoding;
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
if (tag[0] == '/')
{
opened = 0;
strcpy(#tag, #tag+1);
}
else opened = 1;
if (isTag("html"))
{
IF(!strcmp(#URL + strlen(#URL) - 4, ".mht")) IF (opened==0) ignor_text = 1; ELSE ignor_text = 0;
t_html = opened;
return;
}
if (isTag("script")) || (isTag("style")) || (isTag("binary")) || (isTag("select")) ignor_text = opened;
if(isTag("title"))
{
if (opened) header=NULL;
else if (!stroka) DrawTitle(#header); //<2F><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
return;
}
if (ignor_text) return;
IF(isTag("q"))
{
if (opened)
{
NewLine();
strcat(#line, ' \"');
}
if (!opened)
{
chrcat(#line, '\"');
NewLine();
}
}
if (anchor) && (!strcmp(#parametr, "id=")) //<2F><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>!!! <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20><><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD>
{
if (!strcmp(#anchor, #options)) anchor_line_num=list.first+stroka;
}
if (isTag("body"))
{
t_body = opened;
do{
if (!strcmp(#parametr, "condition_max=")) condition_max = atoi(#options);
if (!strcmp(#parametr, "link=")) link_color_inactive = GetColor(#options);
if (!strcmp(#parametr, "alink=")) link_color_active = GetColor(#options);
if (!strcmp(#parametr, "text=")) text_colors[0]=GetColor(#options);
if (!strcmp(#parametr, "bgcolor="))
{
bg_color=GetColor(#options);
DrawBuf.Fill(bg_color);
}
} while(GetNextParam());
if (opened) && (cur_encoding==_DEFAULT)
{
debugln("Document has no information about encoding, UTF will be used");
BufEncode(_UTF);
}
return;
}
if (isTag("a"))
{
if (opened)
{
if (link) IF(text_color_index > 0) text_color_index--; //<2F><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD> <20> <20><> <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
do{
if (!strcmp(#parametr, "href="))
{
if (stroka - 1 > list.visible) || (stroka < -2) return;
text_color_index++;
text_colors[text_color_index] = text_colors[text_color_index-1];
link = 1;
text_colors[text_color_index] = link_color_inactive;
PageLinks.AddLink(#options, stolbec*6+left1, top1-2);
}
if (anchor) && (!strcmp(#parametr, "name="))
{
if (!strcmp(#anchor, #options))
{
anchor_line_num=list.first+stroka;
}
}
} while(GetNextParam());
}
else {
link = 0;
IF(text_color_index > 0) text_color_index--;
}
return;
}
if (isTag("font"))
{
if (opened)
{
text_color_index++;
text_colors[text_color_index] = text_colors[text_color_index-1];
do{
if (strcmp(#parametr, "color=") == 0) //&& (parametr[1] == '#')
{
text_colors[text_color_index] = GetColor(#options);
}
} while(GetNextParam());
}
else
if (text_color_index > 0) text_color_index--;
return;
}
if (isTag("br")) {
NewLine();
return;
}
if (isTag("div")) || (isTag("header")) || (isTag("article")) || (isTag("footer")) {
IF(oldtag[0] <>'h') NewLine();
return;
}
if (isTag("p")) {
IF(oldtag[0] == 'h') return;
NewLine();
IF(opened) NewLine();
return;
}
if(isTag("table")) {
table.active = opened;
NewLine();
if (opened) table.NewTable();
}
if(isTag("td")) {
if (opened)
{
table.cur_col++;
table.row_h = 0;
do {
if (!strcmp(#parametr, "width="))
{
table.col_w[table.cur_col] = atoi(#options);
// NewLine();
// strcpy(#line, #options);
// NewLine();
}
} while(GetNextParam());
}
else
{
if (table.row_h > table.row_max_h) table.row_max_h = table.row_h;
}
}
if(isTag("tr")) {
if (opened)
{
table.cur_col = 0;
table.row_max_h = 0;
table.row_start = stroka;
}
else
{
NewLine();
if (table.cur_row == 0) table.max_cols = table.cur_col;
table.cur_row++;
table.max_cols = table.cur_col;
}
}
/*
if (isTag("center"))
{
if (opened) text_align = ALIGN_CENTER;
if (!opened)
{
NewLine();
text_align = ALIGN_LEFT;
}
return;
}
if (isTag("right"))
{
if (opened) text_align = ALIGN_RIGHT;
if (!opened)
{
NewLine();
text_align = ALIGN_LEFT;
}
return;
}
*/
if (isTag("h1")) || (isTag("h2")) || (isTag("h3")) || (isTag("h4")) {
NewLine();
if (opened) && (stroka>1) NewLine();
strcpy(#oldtag, #tag);
if (opened)
{
if (!strcmp(#parametr, "align=")) && (!strcmp(#options,"center")) text_align = ALIGN_CENTER;
if (!strcmp(#parametr, "align=")) && (!strcmp(#options,"right")) text_align = ALIGN_RIGHT;
b_text = 1;
}
if (!opened)
{
text_align = ALIGN_LEFT;
b_text = 0;
}
return;
}
else
oldtag=NULL;
if (isTag("b")) || (isTag("strong")) || (isTag("big")) {
b_text = opened;
return;
}
if(isTag("i")) || (isTag("em")) || (isTag("subtitle")) {
i_text = opened;
return;
}
if (isTag("dt"))
{
li_text = opened;
IF(opened == 0) return;
NewLine();
return;
}
if (isTag("condition"))
{
condition_text_active = opened;
if (opened) && (!strcmp(#parametr, "show_if=")) condition_text_val = atoi(#options);
return;
}
if (isTag("li")) || (isTag("dt")) //<2F><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
li_text = opened;
if (opened)
{
NewLine();
if (stroka > -1) && (stroka - 2 < list.visible) DrawBuf.DrawBar(li_tab * 5 * 6 + left1 - 5, list.line_h/2-2, 2, 2, 0x555555);
}
return;
}
if (isTag("u")) || (isTag("ins")) u_text = opened;
if (isTag("s")) || (isTag("strike")) || (isTag("del")) s_text = opened;
if (isTag("ul")) || (isTag("ol")) IF(!opened)
{
li_text = opened;
li_tab--;
NewLine();
} ELSE li_tab++;
if (isTag("dd")) stolbec += 5;
if (isTag("blockquote")) blq_text = opened;
if (isTag("pre")) || (isTag("code")) pre_text = opened;
if (isTag("hr"))
{
if (anchor) || (stroka < -1)
{
stroka+=2;
return;
}
if (strcmp(#parametr, "color=") == 0) hr_color = GetColor(#options); else hr_color = 0x999999;
NewLine();
DrawBuf.DrawBar(5, list.line_h/2, list.w-10, 1, hr_color);
NewLine();
}
if (isTag("img"))
{
ImgCache.Images( left1, top1, WB1.list.w);
return;
}
if (isTag("meta")) || (isTag("?xml"))
{
do{
if (!strcmp(#parametr, "charset=")) || (!strcmp(#parametr, "content=")) || (!strcmp(#parametr, "encoding="))
{
strcpy(#options, #options[strrchr(#options, '=')]); //<2F><><EFBFBD><EFBFBD><EFBFBD> <20> content=
strlwr(#options);
meta_encoding = _DEFAULT;
if (!strcmp(#options, "utf-8")) || (!strcmp(#options,"utf8")) meta_encoding = _UTF;
if (!strcmp(#options, "koi8-r")) || (!strcmp(#options, "koi8-u")) meta_encoding = _KOI;
if (!strcmp(#options, "windows-1251")) || (!strcmp(#options, "windows1251")) meta_encoding = _WIN;
if (!strcmp(#options, "dos")) || (!strcmp(#options, "cp-866")) meta_encoding = _DOS;
if (cur_encoding==_DEFAULT) BufEncode(meta_encoding);
return;
}
} while(GetNextParam());
return;
}
}
void TWebBrowser::DrawScroller()
{
scroll_wv.max_area = list.count;
scroll_wv.cur_area = list.visible;
scroll_wv.position = list.first;
scroll_wv.all_redraw=0;
scroll_wv.start_x = list.x + list.w;
scroll_wv.start_y = list.y;
scroll_wv.size_y=list.h;
scrollbar_v_draw(#scroll_wv);
}
void TWebBrowser::NewLine()
{
int onleft;
int ontop;
onleft = list.x + 5;
ontop = stroka * list.line_h + list.y + 5;
if (!stroka) DrawBar(list.x, list.y, list.w, 5, bg_color);
if (t_html) && (!t_body) return;
if (ontop>=list.y) && ( ontop < list.h+list.y-10) && (!anchor)
{
if (text_align == ALIGN_CENTER) DrawBuf.AlignCenter(onleft,ontop,list.w,list.line_h,stolbec * 6);
if (text_align == ALIGN_RIGHT) DrawBuf.AlignRight(onleft,ontop,list.w,list.line_h,stolbec * 6);
DrawBuf.bufy = ontop;
DrawBuf.Show();
DrawBuf.Fill(bg_color);
}
stroka++;
if (blq_text) stolbec = 6; else stolbec = 0;
if (li_text) stolbec = li_tab * 5;
}
int isTag(dword text)
{
if (!strcmp(#tag,text)) return 1; else return 0;
}