knewsticker/newssourcedlgimpl.cpp

   1 /*
   2  * newssourcedlgimpl.cpp
   3  *
   4  * Copyright (c) 2001 Frerich Raabe <raabe@kde.org>
   5  *
   6  * This program is distributed in the hope that it will be useful, but WITHOUT
   7  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   8  * FOR A PARTICULAR PURPOSE. For licensing and distribution details, check the
   9  * accompanying file 'COPYING'.
  10  */
  11 #include "newssourcedlgimpl.h"
  12 #include "xmlnewsaccess.h"
  13 #include "configaccess.h"
  14 #include "newsiconmgr.h"
  15
  16 #include <kcombobox.h>
  17 #include <klineedit.h>
  18 #include <kmessagebox.h>
  19 #include <knuminput.h>
  20 #include <kurlrequester.h>
  21 #include <kvbox.h>
  22
  23 #include <qcheckbox.h>
  24 #include <qlabel.h>
  25 #include <QProgressBar>
  26 #include <qtimer.h>
  27 #include <QPixmap>
  28
  29 SuggestProgressDlg::SuggestProgressDlg(const KUrl &url, QWidget *parent, const char *name)
  30         : KDialog(parent),
  31         m_gotSourceFile(false),
  32         m_gotIcon(false)
  33 {
  34     setCaption(  i18n("Downloading Data") );
  35     setButtons( Cancel );
  36     setDefaultButton( Cancel );
  37     setModal( true );
  38     KVBox *mainWidget = new KVBox( this );
  39     setMainWidget( mainWidget);
  40
  41     new QLabel(i18n("<qt>Please wait while KNewsTicker is downloading some "
  42                     "data necessary to suggest reasonable values.<br/>"
  43                     "<br/>"
  44                     "This will not take longer than one minute.</qt>" ),
  45                mainWidget);
  46
  47     m_progressBar = new QProgressBar(mainWidget);
  48     m_progressBar->setMaximum(60);
  49     m_progressBar->setTextVisible(false);
  50
  51     m_timeoutTimer = new QTimer(this);
  52     connect(m_timeoutTimer, SIGNAL(timeout()), this, SLOT(slotTimeoutTick()));
  53     m_timeoutTimer->start(1000);
  54
  55     m_xmlSrc = new XMLNewsSource;
  56     connect(m_xmlSrc, SIGNAL(loadComplete(XMLNewsSource *, bool)),
  57             this, SLOT(slotLoadComplete(XMLNewsSource *, bool)));
  58     m_xmlSrc->loadFrom(url);
  59
  60     connect(NewsIconMgr::self(), SIGNAL(gotIcon(const KUrl &, const QPixmap &)),
  61             this, SLOT(slotGotIcon(const KUrl &, const QPixmap &)));
  62     KUrl u = url;
  63     if (url.isLocalFile())
  64         u = QString::null;
  65     else
  66         u.setEncodedPathAndQuery(QLatin1String("/favicon.ico"));
  67     NewsIconMgr::self()->getIcon(u);
  68 }
  69
  70 SuggestProgressDlg::~SuggestProgressDlg()
  71 {
  72         delete m_xmlSrc;
  73 }
  74
  75 void SuggestProgressDlg::slotTimeoutTick()
  76 {
  77         if (m_progressBar->value() == m_progressBar->maximum()) {
  78                 m_timeoutTimer->stop();
  79                 KMessageBox::error(this, i18n("Could not retrieve the specified source file."));
  80                 reject();
  81                 return;
  82         }
  83         m_progressBar->setValue(m_progressBar->value() + 1);
  84 }
  85
  86 void SuggestProgressDlg::slotLoadComplete(XMLNewsSource *, bool succeeded)
  87 {
  88         m_gotSourceFile = true;
  89         m_succeeded = succeeded;
  90
  91         if (m_gotIcon)
  92                 done(succeeded ? QDialog::Accepted : QDialog::Rejected);
  93 }
  94
  95 void SuggestProgressDlg::slotGotIcon(const KUrl &url, const QPixmap &pixmap)
  96 {
  97         m_gotIcon = true;
  98         m_icon = pixmap;
  99         m_iconURL = url;
 100
 101         if (m_gotIcon)
 102                 done(m_succeeded ? QDialog::Accepted : QDialog::Rejected);
 103 }
 104
 105 NewsSourceDlgImpl::NewsSourceDlgImpl(QWidget *parent,  const char *name, bool modal, Qt::WFlags fl)
 106         : NewsSourceDlg(parent, name, modal, fl),
 107         m_modified(false)
 108 {
 109         connect(NewsIconMgr::self(), SIGNAL(gotIcon(const KUrl &, const QPixmap &)),
 110                 this, SLOT(slotGotIcon(const KUrl &, const QPixmap &)));
 111
 112         for (unsigned int i = 0; i < DEFAULT_SUBJECTS; i++)
 113                 comboCategory->addItem(
 114                                 NewsSourceBase::subjectText(static_cast<NewsSourceBase::Subject>(i)));
 115
 116 }
 117
 118 void NewsSourceDlgImpl::slotCancelClicked()
 119 {
 120         close();
 121 }
 122
 123 void NewsSourceDlgImpl::slotOkClicked()
 124 {
 125         KUrl url (polishedURL(KUrl(urlSourceFile->url())));
 126
 127         if (!validateURL(url))
 128                 return;
 129
 130         if (leName->text().isEmpty()) {
 131                 KMessageBox::error(this, i18n("You have to specify a name for this news"
 132                                         " source to be able to use it."), i18n("No Name Specified"));
 133                 return;
 134         }
 135
 136         // This finds out which subject is selected in the 'Subject' combo box.
 137         NewsSourceBase::Subject subject = NewsSourceBase::Computers;
 138         for (unsigned int i = 0; i < DEFAULT_SUBJECTS; i++) {
 139                 NewsSourceBase::Subject thisSubj = static_cast<NewsSourceBase::Subject>(i);
 140                 if (comboCategory->currentText() == NewsSourceBase::subjectText(thisSubj)) {
 141                         subject = thisSubj;
 142                         break;
 143                 }
 144         }
 145
 146         KUrl iconURL ( leIcon->text() );
 147         if (iconURL.protocol().isEmpty())
 148                 if (iconURL.host().startsWith(QLatin1String("ftp.")))
 149                         iconURL.setProtocol(QLatin1String("ftp"));
 150                 else if (iconURL.host().startsWith(QLatin1String("www.")))
 151                         iconURL.setProtocol(QLatin1String("http"));
 152                 else
 153                         iconURL.setProtocol(QLatin1String("file"));
 154
 155         NewsSourceBase::Data nsd(leName->text(), url.url(), iconURL.url(), subject,
 156                         sbMaxArticles->value(), true, cbProgram->isChecked());
 157
 158         emit newsSource(nsd);
 159
 160         close();
 161 }
 162
 163 void NewsSourceDlgImpl::slotSourceFileChanged()
 164 {
 165         bSuggest->setEnabled(!urlSourceFile->url().isEmpty());
 166 }
 167
 168 void NewsSourceDlgImpl::slotSuggestClicked()
 169 {
 170         KUrl url ( polishedURL(KUrl( urlSourceFile->url() )) );
 171
 172         if (!validateURL(url))
 173                 return;
 174
 175         SuggestProgressDlg dlg(url, this);
 176         if (dlg.exec() == QDialog::Accepted) {
 177                 pixmapIcon->setPixmap(dlg.icon());
 178                 if (NewsIconMgr::self()->isStdIcon(dlg.icon()))
 179                         leIcon->clear();
 180                 else
 181                         leIcon->setText(dlg.iconURL().url());
 182                 cbProgram->setChecked(false);
 183                 leName->setText(dlg.xmlSrc()->newsSourceName());
 184                 sbMaxArticles->setValue(dlg.xmlSrc()->articles().count());
 185         }
 186 }
 187
 188 void NewsSourceDlgImpl::slotModified()
 189 {
 190         m_modified = true;
 191 }
 192
 193 void NewsSourceDlgImpl::setup(const NewsSourceBase::Data &nsd, bool modify)
 194 {
 195         leName->setText(nsd.name);
 196         urlSourceFile->setUrl(nsd.sourceFile);
 197         cbProgram->setChecked(nsd.isProgram);
 198         comboCategory->setCurrentIndex(nsd.subject);
 199         sbMaxArticles->setValue(nsd.maxArticles);
 200         KUrl iconURL ( nsd.icon );
 201         if (iconURL.protocol() == QLatin1String("file"))
 202                 iconURL.setProtocol(QString::null);
 203         leIcon->setText(iconURL.url());
 204         NewsIconMgr::self()->getIcon(iconURL);
 205         if (modify == true) {
 206                 setWindowTitle(i18n("Edit News Source"));
 207         }
 208 }
 209
 210 KUrl NewsSourceDlgImpl::polishedURL(const KUrl &url) const
 211 {
 212         KUrl newURL = url;
 213
 214         if (url.protocol().isEmpty())
 215                 if (url.url().startsWith(QLatin1String("ftp")))
 216                         newURL = QLatin1String("ftp://") + url.url();
 217                 else
 218                         newURL = QLatin1String("http://") + url.url();
 219
 220         return newURL;
 221 }
 222
 223 bool NewsSourceDlgImpl::validateURL(const KUrl &url)
 224 {
 225         if (url.isEmpty()) {
 226                 KMessageBox::error(this, i18n("You have to specify the source file for this"
 227                                         " news source to be able to use it."), i18n("No Source File"
 228                                         " Specified"));
 229                 return false;
 230         }
 231
 232         if (!url.isValid() || !url.hasPath() || url.encodedPathAndQuery() == QLatin1String("/")) {
 233                 KMessageBox::error(this, i18n("KNewsTicker needs a valid RDF or RSS file to"
 234                                         " suggest sensible values. The specified source file is invalid."),
 235                                         i18n("Invalid Source File"));
 236                 return false;
 237         }
 238
 239         return true;
 240 }
 241
 242 void NewsSourceDlgImpl::slotGotIcon(const KUrl &, const QPixmap &pixmap)
 243 {
 244         pixmapIcon->setPixmap(pixmap);
 245 }
 246
 247 #include "newssourcedlgimpl.moc"