kolibrios/programs/cmm/browser/WebView.c
Kirill Lipatov (Leency) eaed653ad3 WebView 1.93:
- handle the case when '&' is written as non special caracter like  
- handle emply lines of list to aboid more than 2 emply lines for better readability
- improve img tag display
- show colored background of all text in debug mode
- improve page display if no html or body tag but the page is still has tags to display


git-svn-id: svn://kolibrios.org@7749 a494cfbc-eb01-0410-851d-a64ba20cac60
2020-03-23 15:53:56 +00:00

712 lines
18 KiB
C
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//HTML Viewer in C--
//Copyright 2007-2020 by Veliant & Leency
//Asper, lev, Lrz, Barsuk, Nable, hidnplayr...
#ifndef AUTOBUILD
#include "lang.h--"
#endif
//libraries
#define MEMSIZE 1024 * 800
#include "..\lib\gui.h"
#include "..\lib\draw_buf.h"
#include "..\lib\list_box.h"
#include "..\lib\cursor.h"
#include "..\lib\collection.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"
#include "..\lib\obj\proc_lib.h"
//useful patterns
#include "..\lib\patterns\history.h"
#include "..\lib\patterns\http_downloader.h"
#include "..\lib\patterns\simple_open_dialog.h"
_http http = {0, 0, 0, 0, 0, 0, 0};
#ifdef LANG_RUS
char version[]="’¥ªáâ®¢ë© ¡à ã§¥à 1.93";
#define T_LOADING "‡ £à㧪  áâà ­¨æë..."
#define T_RENDERING "<22>¥­¤¥à¨­£..."
char page_not_found[] = FROM "html\\page_not_found_ru.htm""\0";
char homepage[] = FROM "html\\homepage_ru.htm""\0";
char help[] = FROM "html\\help_ru.htm""\0";
char accept_language[]= "Accept-Language: ru\n";
char rmb_menu[] =
"<EFBFBD>®á¬®âà¥âì ¨á室­¨ª
<EFBFBD>¥¤ ªâ¨à®¢ âì ¨á室­¨ª
ˆáâ®à¨ï
Œ¥­¥¤¦¥à § £à㧮ª";
char link_menu[] =
"Š®¯¨à®¢ âì áá뫪ã
ª ç âì ᮤ¥à¦¨¬®¥ áá뫪¨";
#else
char version[]="Text-based Browser 1.93";
#define T_LOADING "Loading..."
#define T_RENDERING "Rendering..."
char page_not_found[] = FROM "html\\page_not_found_en.htm""\0";
char homepage[] = FROM "html\\homepage_en.htm""\0";
char help[] = FROM "html\\help_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_HOMEPAGE "WebView://home"
#define URL_SERVICE_HELP "WebView://help"
#define URL_SERVICE_SOURCE "WebView://source:"
proc_info Form;
char stak[4096];
int action_buf;
dword TOOLBAR_H = 40;
dword STATUSBAR_H = 15;
dword col_bg = 0xE3E2E2;
dword panel_color = 0xE3E2E2;
dword border_color = 0x8C8C8C;
bool debug_mode = false;
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,
DOWNLOAD_MANAGER,
COPY_LINK_URL=1200,
DOWNLOAD_LINK_CONTENTS,
};
#include "..\TWB\TWB.c"
#include "history.h"
#include "show_src.h"
#include "download_manager.h"
char default_dir[] = "/rd/1";
od_filter filter2 = { 16, "TXT\0HTM\0HTML\0\0" };
char editURL[sizeof(URL)];
edit_box address_box = {250,60,30,0xffffff,0x94AECE,0xffffff,0xffffff,0x10000000,sizeof(URL)-2,#editURL,0,NULL,19,19};
#define SKIN_Y 24
void LoadLibraries()
{
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(Proc_lib, #OpenDialog_init,0);
OpenDialog_init stdcall (#o_dialog);
}
void HandleParam()
{
if (param) {
if (param[0]=='-') && (param[1]=='d') {
strcpy(#downloader_edit, #param+3);
CreateThread(#Downloader,#downloader_stak+4092);
ExitProcess();
} else {
strcpy(#URL, #param);
}
} else {
strcpy(#URL, URL_SERVICE_HOMEPAGE);
}
}
void main()
{
int redirect_count = 0;
int i;
LoadLibraries();
CreateDir("/tmp0/1/downloads");
Libimg_LoadImage(#skin, "/sys/toolbar.png");
HandleParam();
skin.h = 26;
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 (PageLinks.HoverAndProceed(mouse.x, WB1.list.first + mouse.y))
&& (bufsize) && (mouse.pkm) && (mouse.up) {
if (WB1.list.MouseOver(mouse.x, mouse.y)) 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 (key_modifier&KEY_LCTRL) || (key_modifier&KEY_RCTRL) {
if (key_scancode == SCAN_CODE_KEY_O) EventOpenDialog();
if (key_scancode == SCAN_CODE_KEY_H) ProcessEvent(VIEW_HISTORY);
if (key_scancode == SCAN_CODE_KEY_U) ProcessEvent(VIEW_SOURCE);
if (key_scancode == SCAN_CODE_KEY_T)
|| (key_scancode == SCAN_CODE_KEY_N) RunProgram(#program_path, NULL);
if (key_scancode == SCAN_CODE_KEY_W) ExitProcess();
if (key_scancode == SCAN_CODE_KEY_J) ProcessEvent(DOWNLOAD_MANAGER);
if (key_scancode == SCAN_CODE_KEY_R) ProcessEvent(REFRESH_BUTTON);
if (key_scancode == SCAN_CODE_ENTER) EventSeachWeb();
if (key_scancode == SCAN_CODE_LEFT) ProcessEvent(BACK_BUTTON);
if (key_scancode == SCAN_CODE_RIGHT) ProcessEvent(FORWARD_BUTTON);
}
if (key_scancode == SCAN_CODE_F5) ProcessEvent(REFRESH_BUTTON);
if (address_box.flags & ed_focus)
{
if (key_scancode == SCAN_CODE_ENTER) {
ProcessEvent(key_scancode);
}
else {
EAX = key_editbox;
edit_box_key stdcall(#address_box);
}
}
else
{
#define KEY_SCROLL_N 11
if (SCAN_CODE_UP == key_scancode) for (i=0;i<KEY_SCROLL_N;i++) WB1.list.KeyUp();
if (SCAN_CODE_DOWN == key_scancode) for (i=0;i<KEY_SCROLL_N;i++) WB1.list.KeyDown();
if (key_scancode == SCAN_CODE_F6) {address_box.flags=ed_focus; DrawOmnibox();}
if (WB1.list.ProcessKey(key_scancode)) WB1.DrawPage();
else ProcessEvent(key_scancode);
}
break;
case evReDraw:
if (menu.cur_y) {
ProcessEvent(menu.cur_y);
menu.cur_y = 0;
}
DefineAndDrawWindow(GetScreenWidth()-800/2-random(80),GetScreenHeight()-600/2-random(80),800,600,0x73,0,0,0);
GetProcessInfo(#Form, SelfInfo);
system.color.get();
col_bg = system.color.work;
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();
EventUpdateProgressBar();
DrawStatusBar(T_LOADING);
if (http.receive_result == 0) {
// Handle redirects
if (http.status_code >= 300) && (http.status_code < 400)
{
redirect_count++;
if (redirect_count>5)
{
notify("'Too many redirects.' -E");
StopLoading();
}
else
{
http.handle_redirect();
http.free();
GetAbsoluteURL(#http.redirect_url);
debug("Redirect: "); debugln(#http.redirect_url);
history.back();
strcpy(#URL, #http.redirect_url);
strcpy(#editURL, #URL);
DrawOmnibox();
OpenPage();
//ProcessLink(history.current());
}
break;
}
redirect_count = 0;
// Loading the page is complete, free resources
history.add(#URL);
bufpointer = http.content_pointer;
bufsize = http.content_received;
http.free();
SetPageDefaults();
DrawStatusBar(T_RENDERING);
ShowPage();
DrawStatusBar(NULL);
}
}
}
}
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 + 1;
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, 800*20);
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, 0, SKIN_Y);
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, 102, SKIN_Y);
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();
DrawOmnibox();
}
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:
EventSubmitOmnibox();
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",4))
{
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 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_URL:
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;
case SCAN_CODE_F12:
debug_mode ^= 1;
if (debug_mode) notify("'Debug mode ON'-I");
else notify("'Debug mode OFF'-I");
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);
pause(10);
}
wv_progress_bar.value = 0;
DrawOmnibox();
}
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 ReplaceSpaceInUrl() {
int i;
strcpy(#editURL, #URL);
while (i = strchr(#URL, ' '))
{
i -= #URL;
strlcpy(#URL+i+3, #editURL+i+1, sizeof(URL)-i-4);
URL[i] = '%';
URL[i+1] = '2';
URL[i+2] = '0';
}
strcpy(#editURL, #URL);
}
void OpenPage()
{
char getUrl[sizeof(URL)];
StopLoading();
souce_mode = false;
strcpy(#editURL, #URL);
history.add(#URL);
if (!strncmp(#URL,"WebView:",8))
{
SetPageDefaults();
if (!strcmp(#URL, URL_SERVICE_HOMEPAGE)) WB1.LoadInternalPage(#homepage, sizeof(homepage));
else if (!strcmp(#URL, URL_SERVICE_HELP)) WB1.LoadInternalPage(#help, sizeof(help));
else if (!strcmp(#URL, URL_SERVICE_HISTORY)) ShowHistory();
else {bufsize=0; ShowPage();} //page not found
DrawOmnibox();
return;
}
if (!strncmp(#URL,"http:",5)) || (!strncmp(#URL,"https://",8))
{
ReplaceSpaceInUrl();
img_draw stdcall(skin.image, address_box.left+address_box.width+1, address_box.top-3, 17, skin.h, 68, SKIN_Y);
if (!strncmp(#URL,"http:",5)) {
http.get(#URL);
}
if (!strncmp(#URL,"https://",8)) {
sprintf(#getUrl, "http://gate.aspero.pro/?site=%s", #URL);
http.get(#getUrl);
}
//http.get(#URL);
if (!http.transfer)
{
StopLoading();
bufsize = 0;
bufpointer = free(bufpointer);
ShowPage();
return;
}
}
else
{
file_size stdcall (#URL);
if (EBX)
{
bufsize = EBX;
free(bufpointer);
bufpointer = malloc(bufsize);
SetPageDefaults();
ReadFile(0, bufsize, bufpointer, #URL);
}
ShowPage();
}
}
void ProcessAnchor()
{
char anchor[256];
int anchor_pos;
anchor_pos = strrchr(#URL, '#')-1;
strlcpy(#anchor, #URL+anchor_pos, sizeof(anchor));
URL[anchor_pos] = 0x00;
//#1
if (URL[0] == NULL)
{
if (anchor[1] == NULL) {
WB1.list.first = 0;
}
else {
if (anchors.get_anchor_pos(#anchor+1)!=-1) WB1.list.first = anchors.get_anchor_pos(#anchor+1);
}
strcpy(#URL, history.current());
}
//liner.ru#1
else
{
GetAbsoluteURL(#URL);
OpenPage();
if (anchors.get_anchor_pos(#anchor+1)!=-1) WB1.list.first = anchors.get_anchor_pos(#anchor+1);
}
WB1.DrawPage();
strcpy(#editURL, #URL);
strcat(#editURL, #anchor);
DrawOmnibox();
}
void EventSubmitOmnibox()
{
if (!editURL[0]) return;
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);
}
ProcessLink();
}
void EventClickLink()
{
strcpy(#URL, PageLinks.GetURL(PageLinks.active));
GetAbsoluteURL(#URL);
ProcessLink();
}
void ProcessLink()
{
if (http.transfer > 0)
{
StopLoading();
history.back();
}
if (strrchr(#URL, '#')!=0) {
ProcessAnchor();
return;
}
if (!strncmp(#URL,"mailto:", 7)) || (!strncmp(#URL,"tel:", 4))
{
notify(#URL);
strcpy(#editURL, history.current());
strcpy(#URL, history.current());
return;
}
if (!strncmp(#URL,"WebView:",8)) {
OpenPage();
return;
}
if (strncmp(#URL,"http://",7)!=0) && (strncmp(#URL,"https://",8)!=0)
{
if (UrlExtIs(".htm")!=true) && (UrlExtIs(".html")!=true)
{
if (strchr(#URL, '|')) {
ESBYTE[strchr(#URL, '|')] = NULL;
RunProgram(#URL, strlen(#URL)+1+#URL);
}
else {
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 DrawOmnibox()
{
int skin_x_offset;
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;
EditBox_UpdateText(#address_box, address_box.flags);
edit_box_draw stdcall(#address_box);
if (http.transfer > 0) skin_x_offset = 68; else skin_x_offset = 51;
img_draw stdcall(skin.image, address_box.left+address_box.width+1, address_box.top-3, 17, skin.h, skin_x_offset, SKIN_Y);
}
void ShowPage()
{
DrawOmnibox();
if (!bufsize)
{
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;
}
void DrawProgress()
{
dword persent;
if (http.transfer == 0) return;
if (wv_progress_bar.max) persent = wv_progress_bar.value*100/wv_progress_bar.max; else persent = 10;
DrawBar(address_box.left-2, address_box.top+20, persent*address_box.width/100, 2, 0x72B7EB);
}
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_URL);
}
void EventUpdateProgressBar()
{
wv_progress_bar.max = http.content_length;
if (wv_progress_bar.value != http.content_received)
{
wv_progress_bar.value = http.content_received;
DrawProgress();
}
}
void EventSeachWeb()
{
sprintf(#URL, "https://www.google.com/search?q=%s", #editURL);
replace_char(#URL, ' ', '_', sizeof(URL));
ProcessLink();
}
void EventOpenDialog()
{
OpenDialog_start stdcall (#o_dialog);
if (o_dialog.status) {
strcpy(#URL, #openfile_path);
OpenPage();
}
}
void DrawStatusBar(dword _status_text)
{
status_text.start_x = 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: