#include "TROOT.h"
#include "TApplication.h"
#include "TSystem.h"
#include "TGMenu.h"
#include "TGComboBox.h"
#include "TGFrame.h"
#include "TGButton.h"
#include "TGTextBuffer.h"
#include "TGTextEntry.h"
#include "TGStatusBar.h"
#include "TGFileDialog.h"
#include "TFile.h"
#include "TBrowser.h"
#include "TGHtml.h"
#include "TString.h"
#include "TUrl.h"
#include "TSocket.h"
#include "Riostream.h"
#include "TGHtmlBrowser.h"
#include "TGText.h"
#ifdef WIN32
#include "TWin32SplashThread.h"
#endif
#include <stdlib.h>
ClassImp(TGHtmlBrowser)
enum EMyMessageTypes {
kM_FILE_OPEN,
kM_FILE_SAVEAS,
kM_FILE_BROWSE,
kM_FILE_EXIT,
kM_FAVORITES_ADD,
kM_TOOLS_CLEARHIST,
kM_HELP_ABOUT
};
static const char *gHtmlFTypes[] = {
"HTML files", "*.htm*",
"All files", "*",
0, 0
};
const char *HtmlError[] = {
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3c.org/TR/1999/REC-html401-19991224/loose.dtd\"> ",
"<HTML><HEAD><TITLE>RHTML cannot display the webpage</TITLE> ",
"<META http-equiv=Content-Type content=\"text/html; charset=UTF-8\"></HEAD> ",
"<BODY> ",
"<TABLE cellSpacing=0 cellPadding=0 width=730 border=0> ",
" <TBODY> ",
" <TR> ",
" <TD id=infoIconAlign vAlign=top align=left width=60 rowSpan=2> ",
" <IMG src=\"info.gif\"> ",
" </TD> ",
" <TD id=mainTitleAlign vAlign=center align=left width=*> ",
" <H1 id=mainTitle>RHTML cannot display the webpage</H1></TD></TR> ",
" <TR> ",
" <TD class=errorCodeAndDivider id=errorCodeAlign align=right> ",
" <DIV class=divider></DIV></TD></TR> ",
" <TR> ",
" <UL> ",
" </UL> ",
" <TD> </TD> ",
" <TD id=MostLikelyAlign vAlign=top align=left> ",
" <H3 id=likelyCauses>Most likely causes:</H3> ",
" <UL> ",
" <LI id=causeNotConnected>You are not connected to the Internet. ",
" <LI id=causeSiteProblem>The website is encountering problems. ",
" <LI id=causeErrorInAddress>There might be a typing error in the address. ",
" <LI id=causeOtherError> ",
" </LI></UL></TD></TR> ",
" <TR> ",
" <TD id=infoBlockAlign vAlign=top align=right> </TD> ",
" <TD id=moreInformationAlign vAlign=center align=left> ",
" <H4> ",
" <TABLE> ",
" <TBODY> ",
" <TR> ",
" <TD vAlign=top><SPAN id=moreInfoContainer></SPAN><ID ",
" id=moreInformation>More information</ID> ",
" </TD></TR></TBODY></TABLE></H4> ",
" <DIV class=infoBlock id=infoBlockID> ",
" <P><ID id=errorExpl1>This problem can be caused by a variety of issues, ",
" including:</ID> ",
" <UL> ",
" <LI id=errorExpl2>Internet connectivity has been lost. ",
" <LI id=errorExpl3>The website is temporarily unavailable. ",
" <LI id=errorExpl4>The Domain Name Server (DNS) is not reachable. ",
" <LI id=errorExpl5>The Domain Name Server (DNS) does not have a listing ",
" for the website's domain. ",
" <P></P> ",
" <P></P></DIV></TD></TR></TBODY></TABLE></BODY></HTML> ",
0
};
TGHtmlBrowser::TGHtmlBrowser(const char *filename, const TGWindow *p, UInt_t w, UInt_t h)
: TGMainFrame(p, w, h)
{
SetCleanup(kDeepCleanup);
fNbFavorites = 1000;
fMenuBar = new TGMenuBar(this, 35, 50, kHorizontalFrame);
fMenuFile = new TGPopupMenu(gClient->GetDefaultRoot());
fMenuFile->AddEntry(" &Open...\tCtrl+O", kM_FILE_OPEN, 0,
gClient->GetPicture("ed_open.png"));
fMenuFile->AddEntry(" Save &As...\tCtrl+A", kM_FILE_SAVEAS, 0,
gClient->GetPicture("ed_save.png"));
fMenuFile->AddEntry(" &Browse...\tCtrl+B", kM_FILE_BROWSE);
fMenuFile->AddSeparator();
fMenuFile->AddEntry(" E&xit\tCtrl+Q", kM_FILE_EXIT, 0,
gClient->GetPicture("bld_exit.png"));
fMenuFile->Associate(this);
fMenuFavorites = new TGPopupMenu(gClient->GetDefaultRoot());
fMenuFavorites->AddEntry("&Add to Favorites", kM_FAVORITES_ADD, 0,
gClient->GetPicture("bld_plus.png"));
fMenuFavorites->AddSeparator();
fMenuFavorites->AddEntry("http://root.cern.ch", fNbFavorites++, 0,
gClient->GetPicture("htmlfile.gif"));
fMenuFavorites->Associate(this);
fMenuTools = new TGPopupMenu(gClient->GetDefaultRoot());
fMenuTools->AddEntry("&Clear History", kM_TOOLS_CLEARHIST, 0,
gClient->GetPicture("ed_delete.png"));
fMenuTools->Associate(this);
fMenuHelp = new TGPopupMenu(gClient->GetDefaultRoot());
fMenuHelp->AddEntry(" &About...", kM_HELP_ABOUT, 0, gClient->GetPicture("about.xpm"));
fMenuHelp->Associate(this);
fMenuBar->AddPopup("&File", fMenuFile, new TGLayoutHints(kLHintsTop | kLHintsLeft, 0, 4, 0, 0));
fMenuBar->AddPopup("&Favorites", fMenuFavorites, new TGLayoutHints(kLHintsTop | kLHintsLeft, 0, 4, 0, 0));
fMenuBar->AddPopup("&Tools", fMenuTools, new TGLayoutHints(kLHintsTop | kLHintsLeft, 0, 4, 0, 0));
fMenuBar->AddPopup("&Help", fMenuHelp, new TGLayoutHints(kLHintsTop | kLHintsRight));
AddFrame(fMenuBar, new TGLayoutHints(kLHintsTop | kLHintsExpandX));
fVerticalFrame = new TGVerticalFrame(this,727,600,kVerticalFrame);
fHorizontalFrame = new TGHorizontalFrame(fVerticalFrame,727,600);
fBack = new TGPictureButton(fHorizontalFrame,gClient->GetPicture("GoBack.gif"));
fBack->SetStyle(gClient->GetStyle());
fBack->SetToolTipText("Go Back");
fHorizontalFrame->AddFrame(fBack, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsCenterY,2,2,2,2));
fBack->Connect("Clicked()", "TGHtmlBrowser", this, "Back()");
fForward = new TGPictureButton(fHorizontalFrame,gClient->GetPicture("GoForward.gif"));
fForward->SetStyle(gClient->GetStyle());
fForward->SetToolTipText("Go Forward");
fHorizontalFrame->AddFrame(fForward, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsCenterY,2,2,2,2));
fForward->Connect("Clicked()", "TGHtmlBrowser", this, "Forward()");
fReload = new TGPictureButton(fHorizontalFrame,gClient->GetPicture("ReloadPage.gif"));
fReload->SetStyle(gClient->GetStyle());
fReload->SetToolTipText("Reload Page");
fHorizontalFrame->AddFrame(fReload, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsCenterY,2,2,2,2));
fReload->Connect("Clicked()", "TGHtmlBrowser", this, "Reload()");
fStop = new TGPictureButton(fHorizontalFrame,gClient->GetPicture("StopLoading.gif"));
fStop->SetStyle(gClient->GetStyle());
fStop->SetToolTipText("Stop Loading");
fHorizontalFrame->AddFrame(fStop, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsCenterY,2,2,2,2));
fStop->Connect("Clicked()", "TGHtmlBrowser", this, "Stop()");
fHome = new TGPictureButton(fHorizontalFrame,gClient->GetPicture("GoHome.gif"));
fHome->SetStyle(gClient->GetStyle());
fHome->SetToolTipText("Go to ROOT HomePage\n (http://root.cern.ch)");
fHorizontalFrame->AddFrame(fHome, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsCenterY,2,2,2,2));
fHome->Connect("Clicked()", "TGHtmlBrowser", this, "Selected(=\"http://root.cern.ch\")");
fURLBuf = new TGTextBuffer(256);
fComboBox = new TGComboBox(fHorizontalFrame, "");
fURL = fComboBox->GetTextEntry();
fURLBuf = fURL->GetBuffer();
fComboBox->Resize(200, fURL->GetDefaultHeight());
fURL->Connect("ReturnPressed()", "TGHtmlBrowser", this, "URLChanged()");
if (filename) {
fComboBox->AddEntry(filename, 1);
fURL->SetText(filename);
}
fComboBox->Select(0);
fComboBox->Connect("Selected(char *)", "TGHtmlBrowser", this, "Selected(char *)");
fHorizontalFrame->AddFrame(fComboBox, new TGLayoutHints(kLHintsLeft | kLHintsCenterY | kLHintsExpandX,2,2,2,2));
fVerticalFrame->AddFrame(fHorizontalFrame, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX,2,2,2,2));
fHtml = new TGHtml(fVerticalFrame, 10, 10, -1);
fVerticalFrame->AddFrame(fHtml, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX | kLHintsExpandY,2,2,2,2));
AddFrame(fVerticalFrame, new TGLayoutHints(kLHintsLeft | kLHintsTop | kLHintsExpandX | kLHintsExpandY,2,2,2,2));
fStatusBar = new TGStatusBar(this,100,20);
Int_t partsusBar[] = {75,25};
fStatusBar->SetParts(partsusBar,2);
AddFrame(fStatusBar, new TGLayoutHints(kLHintsBottom | kLHintsExpandX));
fHtml->Connect("MouseOver(const char *)", "TGHtmlBrowser", this, "MouseOver(const char *)");
fHtml->Connect("MouseDown(const char *)", "TGHtmlBrowser", this, "MouseDown(const char *)");
MapSubwindows();
Resize(GetDefaultSize());
MapWindow();
Resize(w, h);
if (filename)
Selected(filename);
}
Ssiz_t ReadSize(const char *url)
{
char buf[4096];
TUrl fUrl(url);
TString msg = "HEAD ";
msg += fUrl.GetProtocol();
msg += "://";
msg += fUrl.GetHost();
msg += ":";
msg += fUrl.GetPort();
msg += "/";
msg += fUrl.GetFile();
msg += " HTTP/1.0";
msg += "\r\n";
msg += "User-Agent: ROOT-TWebFile/1.1";
msg += "\r\n\r\n";
TString uri(url);
if (!uri.BeginsWith("http://"))
return 0;
TSocket s(fUrl.GetHost(), fUrl.GetPort());
if (!s.IsValid())
return 0;
if (s.SendRaw(msg.Data(), msg.Length()) == -1)
return 0;
if (s.RecvRaw(buf, 4096) == -1) {
return 0;
}
TString reply(buf);
Ssiz_t idx = reply.Index("Content-length:", 0, TString::kIgnoreCase);
if (idx > 0) {
idx += 15;
TString slen = reply(idx, reply.Length() - idx);
return (Ssiz_t)atol(slen.Data());
}
return 0;
}
static char *ReadRemote(const char *url)
{
static char *buf = 0;
TUrl fUrl(url);
Ssiz_t size = ReadSize(url);
if (size <= 0) size = 1024*1024;
TString msg = "GET ";
msg += fUrl.GetProtocol();
msg += "://";
msg += fUrl.GetHost();
msg += ":";
msg += fUrl.GetPort();
msg += "/";
msg += fUrl.GetFile();
msg += "\r\n";
TString uri(url);
if (!uri.BeginsWith("http://"))
return 0;
TSocket s(fUrl.GetHost(), fUrl.GetPort());
if (!s.IsValid())
return 0;
if (s.SendRaw(msg.Data(), msg.Length()) == -1)
return 0;
buf = (char *)calloc(size+1, sizeof(char));
if (s.RecvRaw(buf, size) == -1) {
free(buf);
return 0;
}
return buf;
}
void TGHtmlBrowser::Selected(const char *uri)
{
char *buf = 0;
FILE *f;
if (CheckAnchors(uri))
return;
TString surl(gSystem->UnixPathName(uri));
if (!surl.BeginsWith("http://") && !surl.BeginsWith("ftp://") &&
!surl.BeginsWith("file://")) {
if (surl.BeginsWith("file:"))
surl.ReplaceAll("file:", "file://");
else
surl.Prepend("file://");
}
if (surl.EndsWith(".root")) {
gVirtualX->SetCursor(fHtml->GetId(), gVirtualX->CreateCursor(kWatch));
gROOT->ProcessLine(Form("TFile::Open(\"%s\");", surl.Data()));
Clicked((char *)surl.Data());
gROOT->RefreshBrowsers();
gVirtualX->SetCursor(fHtml->GetId(), gVirtualX->CreateCursor(kPointer));
return;
}
gVirtualX->SetCursor(fHtml->GetId(), gVirtualX->CreateCursor(kWatch));
TUrl url(surl.Data());
if (surl.EndsWith(".pdf", TString::kIgnoreCase)) {
if (!gVirtualX->InheritsFrom("TGX11")) {
TString cmd = TString::Format("explorer %s", surl.Data());
gSystem->Exec(cmd.Data());
}
gVirtualX->SetCursor(fHtml->GetId(), gVirtualX->CreateCursor(kPointer));
return;
}
if (surl.EndsWith(".gif") || surl.EndsWith(".jpg") || surl.EndsWith(".png")) {
fHtml->Clear();
char imgHtml[1024];
snprintf(imgHtml, 1000, "<IMG src=\"%s\"> ", surl.Data());
fHtml->ParseText(imgHtml);
fHtml->SetBaseUri(url.GetUrl());
fURL->SetText(surl.Data());
if (!fComboBox->FindEntry(surl.Data()))
fComboBox->AddEntry(surl.Data(), fComboBox->GetNumberOfEntries()+1);
fHtml->Layout();
gVirtualX->SetCursor(fHtml->GetId(), gVirtualX->CreateCursor(kPointer));
return;
}
if ((!strcmp(url.GetProtocol(), "http"))) {
buf = ReadRemote(url.GetUrl());
if (buf) {
fHtml->Clear();
fHtml->Layout();
fHtml->SetBaseUri(url.GetUrl());
fHtml->ParseText(buf);
free(buf);
fURL->SetText(surl.Data());
if (!fComboBox->FindEntry(surl.Data()))
fComboBox->AddEntry(surl.Data(), fComboBox->GetNumberOfEntries()+1);
}
else {
fHtml->Clear();
fHtml->Layout();
fHtml->SetBaseUri("");
for (int i=0; HtmlError[i]; i++) {
fHtml->ParseText((char *)HtmlError[i]);
}
}
}
else {
f = fopen(url.GetFile(), "r");
if (f) {
TString fpath = url.GetUrl();
fpath.ReplaceAll(gSystem->BaseName(fpath.Data()), "");
fpath.ReplaceAll("file://", "");
fHtml->Clear();
fHtml->Layout();
fHtml->SetBaseUri(fpath.Data());
buf = (char *)calloc(4096, sizeof(char));
if (buf) {
while (fgets(buf, 4096, f)) {
fHtml->ParseText(buf);
}
free(buf);
}
fclose(f);
fURL->SetText(surl.Data());
if (!fComboBox->FindEntry(surl.Data()))
fComboBox->AddEntry(surl.Data(), fComboBox->GetNumberOfEntries()+1);
}
else {
fHtml->Clear();
fHtml->Layout();
fHtml->SetBaseUri("");
for (int i=0; HtmlError[i]; i++) {
fHtml->ParseText((char *)HtmlError[i]);
}
}
}
gVirtualX->SetCursor(fHtml->GetId(), gVirtualX->CreateCursor(kPointer));
fHtml->Layout();
Ssiz_t idx = surl.Last('#');
if (idx > 0) {
idx +=1;
TString anchor = surl(idx, surl.Length() - idx);
fHtml->GotoAnchor(anchor.Data());
}
SetWindowName(Form("%s - RHTML",surl.Data()));
}
void TGHtmlBrowser::URLChanged()
{
const char *string = fURL->GetText();
if (string) {
Selected(gSystem->UnixPathName(string));
}
}
void TGHtmlBrowser::Back()
{
Int_t index = 0;
const char *string = fURL->GetText();
TGLBEntry * lbe1 = fComboBox->FindEntry(string);
if (lbe1)
index = lbe1->EntryId();
if (index > 0) {
fComboBox->Select(index - 1, kTRUE);
TGTextLBEntry *entry = (TGTextLBEntry *)fComboBox->GetSelectedEntry();
if (entry) {
string = entry->GetTitle();
if (string)
Selected(string);
}
}
}
Bool_t TGHtmlBrowser::CheckAnchors(const char *uri)
{
TString surl(gSystem->UnixPathName(uri));
if (!fHtml->GetBaseUri())
return kFALSE;
TString actual = fHtml->GetBaseUri();
Ssiz_t idx = surl.Last('#');
Ssiz_t idy = actual.Last('#');
TString short1(surl.Data());
TString short2(actual.Data());
if (idx > 0)
short1 = surl(0, idx);
if (idy > 0)
short2 = actual(0, idy);
if (short1 == short2) {
if (idx > 0) {
idx +=1;
TString anchor = surl(idx, surl.Length() - idx);
fHtml->GotoAnchor(anchor.Data());
}
else {
fHtml->ScrollToPosition(TGLongPosition(0, 0));
}
fHtml->SetBaseUri(surl.Data());
if (!fComboBox->FindEntry(surl.Data()))
fComboBox->AddEntry(surl.Data(), fComboBox->GetNumberOfEntries()+1);
fURL->SetText(surl.Data());
fComboBox->Select(fComboBox->GetNumberOfEntries(), kFALSE);
SetWindowName(Form("%s - RHTML",surl.Data()));
return kTRUE;
}
return kFALSE;
}
void TGHtmlBrowser::Forward()
{
Int_t index = 0;
const char *string = fURL->GetText();
TGLBEntry * lbe1 = fComboBox->FindEntry(string);
if (lbe1)
index = lbe1->EntryId();
if (index < fComboBox->GetNumberOfEntries()) {
fComboBox->Select(index + 1, kTRUE);
TGTextLBEntry *entry = (TGTextLBEntry *)fComboBox->GetSelectedEntry();
if (entry) {
string = entry->GetTitle();
if (string)
Selected(string);
}
}
}
void TGHtmlBrowser::Reload()
{
const char *string = fURL->GetText();
if (string)
Selected(string);
}
void TGHtmlBrowser::Stop()
{
}
void TGHtmlBrowser::MouseOver(const char *url)
{
fStatusBar->SetText(url, 0);
}
void TGHtmlBrowser::MouseDown(const char *url)
{
Selected(url);
}
Bool_t TGHtmlBrowser::ProcessMessage(Long_t msg, Long_t parm1, Long_t)
{
switch (GET_MSG(msg)) {
case kC_COMMAND:
{
switch (GET_SUBMSG(msg)) {
case kCM_MENU:
case kCM_BUTTON:
switch(parm1) {
case kM_FILE_EXIT:
CloseWindow();
break;
case kM_FILE_OPEN:
{
static TString dir(".");
TGFileInfo fi;
fi.fFileTypes = gHtmlFTypes;
fi.fIniDir = StrDup(dir);
new TGFileDialog(fClient->GetRoot(), this,
kFDOpen, &fi);
dir = fi.fIniDir;
if (fi.fFilename) {
Selected(Form("file://%s",
gSystem->UnixPathName(fi.fFilename)));
}
}
break;
case kM_FILE_SAVEAS:
{
static TString sdir(".");
TGFileInfo fi;
fi.fFileTypes = gHtmlFTypes;
fi.fIniDir = StrDup(sdir);
new TGFileDialog(fClient->GetRoot(), this,
kFDSave, &fi);
sdir = fi.fIniDir;
if (fi.fFilename) {
TGText txt(fHtml->GetText());
txt.Save(gSystem->UnixPathName(fi.fFilename));
}
}
break;
case kM_FAVORITES_ADD:
fMenuFavorites->AddEntry(Form("%s",
fURL->GetText()), fNbFavorites++, 0,
gClient->GetPicture("htmlfile.gif"));
break;
case kM_TOOLS_CLEARHIST:
fComboBox->RemoveEntries(1,fComboBox->GetNumberOfEntries());
break;
case kM_FILE_BROWSE:
new TBrowser();
break;
case kM_HELP_ABOUT:
{
#ifdef R__UNIX
TString rootx;
# ifdef ROOTBINDIR
rootx = ROOTBINDIR;
# else
rootx = gSystem->Getenv("ROOTSYS");
if (!rootx.IsNull()) rootx += "/bin";
# endif
rootx += "/root -a &";
gSystem->Exec(rootx);
#else
#ifdef WIN32
new TWin32SplashThread(kTRUE);
#else
char str[32];
snprintf(str, 32, "About ROOT %s...", gROOT->GetVersion());
TRootHelpDialog *hd = new TRootHelpDialog(this, str,
600, 400);
hd->SetText(gHelpAbout);
hd->Popup();
#endif
#endif
}
break;
default:
{
if (parm1 < 1000) break;
TGMenuEntry *entry = fMenuFavorites->GetEntry(parm1);
if (!entry) break;
const char *shortcut = entry->GetName();
if (shortcut)
Selected(shortcut);
}
break;
}
break;
}
break;
}
}
return kTRUE;
}