diff options
Diffstat (limited to 'kdict/queryview.cpp')
| -rw-r--r-- | kdict/queryview.cpp | 618 |
1 files changed, 618 insertions, 0 deletions
diff --git a/kdict/queryview.cpp b/kdict/queryview.cpp new file mode 100644 index 00000000..a2674d68 --- /dev/null +++ b/kdict/queryview.cpp @@ -0,0 +1,618 @@ +/* ------------------------------------------------------------- + + queryview.cpp (part of The KDE Dictionary Client) + + Copyright (C) 2000-2001 Christian Gebauer <gebauer@kde.org> + + This file is distributed under the Artistic License. + See LICENSE for details. + + ------------------------------------------------------------- + + BrowseData data structure used for caching definitions + DictHTMLPart handling of middle mouse button clicks + QueryView widget that displays the definitions + + ------------------------------------------------------------- */ + +#include <qclipboard.h> +#include <qtimer.h> + +#include <kfiledialog.h> +#include <ktempfile.h> +#include <kio/netaccess.h> +#include <kcursor.h> +#include <kpopupmenu.h> +#include <kmessagebox.h> +#include <klocale.h> +#include <khtml_events.h> +#include <khtmlview.h> + +#include "actions.h" +#include "options.h" +#include "dict.h" +#include "queryview.h" +#include <kapplication.h> +#include <kiconloader.h> + + +//******** SaveHelper ******************************************* + +QString SaveHelper::lastPath; + +SaveHelper::SaveHelper(const QString &saveName, const QString &filter, QWidget *parent) + : p_arent(parent), s_aveName(saveName), f_ilter(filter), file(0), tmpFile(0) +{ +} + + +SaveHelper::~SaveHelper() +{ + if (file) { // local filesystem, just close the file + delete file; + } else + if (tmpFile) { // network location, initiate transaction + tmpFile->close(); + if (KIO::NetAccess::upload(tmpFile->name(),url, p_arent) == false) + KMessageBox::error(global->topLevel, i18n("Unable to save remote file.")); + tmpFile->unlink(); // delete temp file + delete tmpFile; + } +} + + +QFile* SaveHelper::getFile(const QString &dialogTitle) +{ + url = KFileDialog::getSaveURL(lastPath+s_aveName,f_ilter,p_arent,dialogTitle); + + if (url.isEmpty()) + return 0; + + lastPath = url.url(-1); + lastPath.truncate(lastPath.length()-url.fileName().length()); + + if (url.isLocalFile()) { + if (QFileInfo(url.path()).exists() && + (KMessageBox::warningContinueCancel(global->topLevel, + i18n("A file named %1 already exists.\nDo you want to replace it?").arg(url.path()), + dialogTitle, i18n("&Replace")) != KMessageBox::Continue)) { + return 0; + } + + file = new QFile(url.path()); + if(!file->open(IO_WriteOnly)) { + KMessageBox::error(global->topLevel, i18n("Unable to save file.")); + delete file; + file = 0; + } + return file; + } else { + tmpFile = new KTempFile(); + if (tmpFile->status()!=0) + KMessageBox::error(global->topLevel, i18n("Unable to create temporary file.")); { + delete tmpFile; + tmpFile = 0; + return 0; + } + return tmpFile->file(); + } +} + + +//**** BrowseData **************************************************** + + +BrowseData::BrowseData(const QString &Nhtml, const QString &NqueryText) +: html(Nhtml),queryText(NqueryText),xPos(0),yPos(0) +{} + + +//********* DictHTMLPart ****************************************** + +DictHTMLPart::DictHTMLPart(QWidget *parentWidget, const char *widgetname) + : KHTMLPart(parentWidget,widgetname) +{} + + +DictHTMLPart::~DictHTMLPart() +{} + + +void DictHTMLPart::khtmlMouseReleaseEvent(khtml::MouseReleaseEvent *event) +{ + if (event->qmouseEvent()->button()==MidButton) + emit(middleButtonClicked()); + else + KHTMLPart::khtmlMouseReleaseEvent(event); +} + + +//********* QueryView ****************************************** + + +QueryView::QueryView(QWidget *_parent) +: QVBox( _parent), actBack(0L), actForward(0L), actQueryCombo(0L), browsePos(0), isRendering(false) +{ + browseList.setAutoDelete(true); + + part=new DictHTMLPart(this); + part->setDNDEnabled(false); + part->setJScriptEnabled(false); + part->setJavaEnabled(false); + part->setURLCursor(KCursor::handCursor()); + setFocusPolicy(QWidget::NoFocus); + connect(part, SIGNAL(completed()), SLOT(partCompleted())); + connect(part, SIGNAL(middleButtonClicked()), SLOT(middleButtonClicked())); + rightBtnMenu = new KPopupMenu(this); + connect(part,SIGNAL(popupMenu(const QString &, const QPoint &)),this,SLOT(buildPopupMenu(const QString &, const QPoint &))); + connect(part->browserExtension(),SIGNAL(openURLRequest(const KURL &,const KParts::URLArgs &)), + this,SLOT(slotURLRequest(const KURL &,const KParts::URLArgs &))); + connect(part->browserExtension(),SIGNAL(enableAction(const char *,bool)),this,SLOT(enableAction(const char *,bool))); + QTimer::singleShot( 0, this, SLOT(optionsChanged()) ); + connect(interface,SIGNAL(resultReady(const QString &, const QString &)), SLOT(resultReady(const QString &, const QString &))); +} + + +QueryView::~QueryView() +{} + + +void QueryView::setActions(KToolBarPopupAction* NactBack, KToolBarPopupAction* NactForward, DictComboAction* NactQueryCombo) +{ + actBack = NactBack; + connect(actBack->popupMenu(),SIGNAL(activated(int)),SLOT(browseBack(int))); + actForward = NactForward; + connect(actForward->popupMenu(),SIGNAL(activated(int)),SLOT(browseForward(int))); + actQueryCombo = NactQueryCombo; +} + + +bool QueryView::browseBackPossible() const +{ + return (browsePos > 0)? true:false; +} + + +bool QueryView::browseForwardPossible() const +{ + return (browsePos+1 < browseList.count()) ? true:false; +} + + +void QueryView::optionsChanged() +{ + saveCurrentResultPos(); + + currentHTMLHeader = QString("<html><head><style type=\"text/css\">\n"); + currentHTMLHeader += QString("body { background-color:%1; color:%2; }\n").arg(global->backgroundColor().name()).arg(global->textColor().name()); + currentHTMLHeader += QString("a:link, a:active { color:%1; text-decoration:none; }\n").arg(global->linksColor().name()); + currentHTMLHeader += QString("a:visited { color:%1; text-decoration:none; }\n").arg(global->visitedLinksColor().name()); + currentHTMLHeader += QString("a:hover { color:%1; text-decoration:underline; }\n").arg(global->linksColor().name()); + currentHTMLHeader += QString("p.heading { margin-left:0mm; margin-top:2mm; margin-bottom:2mm; padding:1mm; background-color:%1; color:%2; font-family:%3; font-size:%4pt; ").arg(global->headingsBackgroundColor().name()).arg(global->headingsTextColor().name()).arg(global->headingsFont().family()).arg(global->headingsFont().pointSize()); + if (global->headingsFont().italic()) + currentHTMLHeader += QString("font-style:italic; "); + if (global->headingsFont().bold()) + currentHTMLHeader += QString("font-weight:bold; "); + currentHTMLHeader += QString("}\n"); + currentHTMLHeader += QString("p.definition { margin-left:1.5mm; margin-top:2mm; margin-bottom:2mm;}\n"); + currentHTMLHeader += QString("table { margin-left:1.5mm; margin-top:2mm; margin-bottom:2mm;}\n"); + currentHTMLHeader += QString("pre { font-family:%1; font-size:%2pt; ").arg(global->textFont().family()).arg(global->textFont().pointSize()); + if (global->textFont().italic()) + currentHTMLHeader += QString("font-style:italic; "); + if (global->textFont().bold()) + currentHTMLHeader += QString("font-weight:bold; "); + currentHTMLHeader += QString("}\n"); + currentHTMLHeader += QString("</style></head>\n"); + + showResult(); // apply changes directly +} + + +void QueryView::stop() +{ + if (isRendering == true) { + part->closeURL(); + isRendering = false; + emit(renderingStopped()); + } +} + + +// print current result +void QueryView::printQuery() +{ + part->view()->print(); +} + + +// save the current result in an .html file +void QueryView::saveQuery() +{ + if (!browseList.isEmpty()) { + BrowseData* brw = browseList.at(browsePos); + QString fName = brw->queryText+".html"; + fName.replace(QRegExp("[\\s/]"),"_"); + SaveHelper helper(fName,"*.html",global->topLevel); + QFile *file = helper.getFile(QString::null); + + if (file) { + QTextStream stream(file); + stream.setEncoding(QTextStream::Locale); + stream << currentHTMLHeader+brw->html; + } + } +} + + +void QueryView::browseBack() +{ + if (browseBackPossible()) { + saveCurrentResultPos(); + browsePos--; + actQueryCombo->setEditText(browseList.at(browsePos)->queryText); + showResult(); + updateBrowseActions(); + } +} + + +void QueryView::browseForward() +{ + if (browseForwardPossible()) { + saveCurrentResultPos(); + browsePos++; + actQueryCombo->setEditText(browseList.at(browsePos)->queryText); + showResult(); + updateBrowseActions(); + } +} + + +void QueryView::selectAll() +{ + part->selectAll(); +} + + +void QueryView::copySelection() +{ + kapp->clipboard()->setText(part->selectedText()); +} + + +void QueryView::showFindDialog() +{ + KAction *act = part->actionCollection()->action("find"); + if (act) + act->activate(); +} + + +void QueryView::paletteChange ( const QPalette & ) +{ + + optionsChanged(); +} + + +void QueryView::fontChange ( const QFont & ) +{ + optionsChanged(); +} + + +void QueryView::saveCurrentResultPos() +{ + if (!browseList.isEmpty()) { + browseList.at(browsePos)->xPos = part->view()->contentsX(); + browseList.at(browsePos)->yPos = part->view()->contentsY(); + } +} + + +void QueryView::showResult() +{ + if (!isRendering) { + isRendering = true; + emit(renderingStarted()); + } + + part->begin(); + if (browseList.isEmpty()) { + part->write(currentHTMLHeader+"<body></body></html>"); + part->end(); + } else { + BrowseData* brw = browseList.at(browsePos); + emit(newCaption(getShortString(brw->queryText.simplifyWhiteSpace(),70))); + part->write(currentHTMLHeader+brw->html); + part->end(); + part->view()->setFocus(); + } +} + + +void QueryView::resultReady(const QString &result, const QString &query) +{ + BrowseData* brw = new BrowseData(result,query); + + if (browseList.isEmpty()) { + browsePos = 0; + browseList.append(brw); + } else { + saveCurrentResultPos(); + while (browseList.count()>browsePos+1) + browseList.removeLast(); + browseList.append(brw); + browsePos++; + while (browseList.count()>global->maxBrowseListEntrys) { + browseList.removeFirst(); + browsePos--; + } + } + + showResult(); + emit(enablePrintSave()); + actQueryCombo->selectAll(); + updateBrowseActions(); +} + + +void QueryView::partCompleted() +{ + if (!browseList.isEmpty()) + part->view()->setContentsPos(browseList.at(browsePos)->xPos,browseList.at(browsePos)->yPos); + if (isRendering) { + emit(renderingStopped()); + isRendering = false; + } +} + + +void QueryView::slotURLRequest (const KURL &url, const KParts::URLArgs &) +{ + QString type = url.host(); + QString urlText = url.prettyURL(); + urlText.remove(0,8+type.length()); + + if (type.length()) { // valid url + if(type=="define") + emit(defineRequested(urlText)); + if(type=="dbinfo") + interface->showDbInfo(urlText.utf8()); + if(type=="realhttp") + kapp->invokeBrowser("http://"+urlText); + if(type=="realftp") + kapp->invokeBrowser("ftp://"+urlText); + } +} + + +void QueryView::middleButtonClicked() +{ + emit(clipboardRequested()); +} + + +// construct the right-mouse-button-popup-menu on demand +void QueryView::buildPopupMenu(const QString &url, const QPoint &point) +{ + rightBtnMenu->clear(); + + if (!url.isEmpty()) { // menuitem if mouse is over link + KURL u(url); + QString type = u.host(); + popupLink = u.prettyURL(); + popupLink.remove(0,8+type.length()); + + if (type.length()) { // valid url + if(type=="define") { + rightBtnMenu->insertItem(i18n("Define &Synonym"), + this,SLOT(popupDefineLink())); + rightBtnMenu->insertItem(i18n("M&atch Synonym"), + this,SLOT(popupMatchLink())); + rightBtnMenu->insertSeparator(); + } + if(type=="dbinfo") { + rightBtnMenu->insertItem(i18n("D&atabase Information"),this,SLOT(popupDbInfo())); + rightBtnMenu->insertSeparator(); + } + if(type=="realhttp") { + popupLink.prepend("http://"); + rightBtnMenu->insertItem(SmallIcon("fileopen"), + i18n("&Open Link"), + this,SLOT(popupOpenLink())); + rightBtnMenu->insertSeparator(); + } + if(type=="realftp") { + popupLink.prepend("ftp://"); + rightBtnMenu->insertItem(SmallIcon("fileopen"), + i18n("&Open Link"), + this,SLOT(popupOpenLink())); + rightBtnMenu->insertSeparator(); + } + } + } + + if (part->hasSelection()) { + popupSelect = part->selectedText(); + rightBtnMenu->insertItem(i18n("&Define Selection"), + this,SLOT(popupDefineSelect())); + rightBtnMenu->insertItem(i18n("&Match Selection"), + this,SLOT(popupMatchSelect())); + rightBtnMenu->insertSeparator(); + } else { + kapp->clipboard()->setSelectionMode(false); + QString text = kapp->clipboard()->text(); + if (text.isEmpty()) { + kapp->clipboard()->setSelectionMode(true); + text = kapp->clipboard()->text(); + } + if (!text.isEmpty()) { + popupSelect = QApplication::clipboard()->text(); + rightBtnMenu->insertItem(SmallIcon("define_clip"), + i18n("&Define Clipboard Content"), + this,SLOT(popupDefineSelect())); + rightBtnMenu->insertItem(i18n("&Match Clipboard Content"), + this,SLOT(popupMatchSelect())); + rightBtnMenu->insertSeparator(); + } + } + + int ID; + + if (browseBackPossible()) { // if possible, show string + if (browseList.at(browsePos-1)->queryText.isEmpty()) + rightBtnMenu->insertItem(SmallIcon("back"), + i18n("&Back: Information"), + this,SLOT(browseBack())); + else + rightBtnMenu->insertItem(SmallIcon("back"), + i18n("&Back: '%1'").arg(getShortString(browseList.at(browsePos-1)->queryText,25)), + this,SLOT(browseBack())); + } else { + ID = rightBtnMenu->insertItem(SmallIcon("back"), i18n("&Back"), this, SLOT(browseBack())); + rightBtnMenu->setItemEnabled(ID,false); + } + + if (browseForwardPossible()) { // if possible, show string + if (browseList.at(browsePos+1)->queryText.isEmpty()) + rightBtnMenu->insertItem(SmallIcon("forward"), + i18n("&Forward: Information"), + this,SLOT(browseForward())); + else + rightBtnMenu->insertItem(SmallIcon("forward"), + i18n("&Forward: '%1'").arg(getShortString(browseList.at(browsePos+1)->queryText,25)), + this,SLOT(browseForward())); + } else { + ID = rightBtnMenu->insertItem(SmallIcon("forward"),i18n("&Forward"),this,SLOT(browseForward())); + rightBtnMenu->setItemEnabled(ID,false); + } + + rightBtnMenu->popup(point); +} + + +void QueryView::popupDefineLink() +{ + emit(defineRequested(popupLink)); +} + + +void QueryView::popupMatchLink() +{ + emit(matchRequested(popupLink)); +} + + +void QueryView::popupOpenLink() +{ + kapp->invokeBrowser(popupLink); +} + + +void QueryView::popupDefineSelect() +{ + emit(defineRequested(popupSelect)); +} + + +void QueryView::popupMatchSelect() +{ + emit(matchRequested(popupSelect)); +} + + +void QueryView::popupDbInfo() +{ + + interface->showDbInfo(popupLink.utf8()); +} + + +void QueryView::enableAction(const char * name, bool enabled) +{ + if (!strcmp(name,"copy")) + emit(enableCopy(enabled)); +} + + +void QueryView::browseBack(int index) +{ + int x = browsePos-index; + if (x>=0) { + saveCurrentResultPos(); + browsePos = x; + actQueryCombo->setEditText(browseList.at(browsePos)->queryText); + showResult(); + QTimer::singleShot(0, this, SLOT(updateBrowseActions())); // don't clear the menu in this slot + } +} + + +void QueryView::browseForward(int index) +{ + int x = browsePos+index; + if (x < (int)(browseList.count())) { + saveCurrentResultPos(); + browsePos = x; + actQueryCombo->setEditText(browseList.at(browsePos)->queryText); + showResult(); + QTimer::singleShot(0, this, SLOT(updateBrowseActions())); // don't clear the menu in this slot + } +} + + +void QueryView::updateBrowseActions() +{ + if (browseBackPossible()) { + actBack->setEnabled(true); + if (browseList.at(browsePos-1)->queryText.isEmpty()) + actBack->setText(i18n("&Back: Information")); + else + actBack->setText(i18n("&Back: '%1'").arg(getShortString(browseList.at(browsePos-1)->queryText,25))); + + actBack->popupMenu()->clear(); + int i = browsePos-1; + int num = 1; + QString s; + while ((i>=0)&&(num<=10)) { + s = browseList.at(i)->queryText; + if (s.isEmpty()) s = i18n("Information"); + actBack->popupMenu()->insertItem(s,num); + num++; + i--; + } + } else { + actBack->setEnabled(false); + actBack->setText(i18n("&Back")); + actBack->popupMenu()->clear(); + } + + if (browseForwardPossible()) { + actForward->setEnabled(true); + if (browseList.at(browsePos+1)->queryText.isEmpty()) + actForward->setText(i18n("&Forward: Information")); + else + actForward->setText(i18n("&Forward: '%1'").arg(getShortString(browseList.at(browsePos+1)->queryText,25))); + + actForward->popupMenu()->clear(); + int i = browsePos+1; + int num = 1; + QString s; + while ((i<(int)(browseList.count()))&&(num<=10)) { + s = browseList.at(i)->queryText; + if (s.isEmpty()) s = i18n("Information"); + actForward->popupMenu()->insertItem(s,num); + num++; + i++; + } + } else { + actForward->setEnabled(false); + actForward->setText(i18n("&Forward")); + actForward->popupMenu()->clear(); + } +} + +//-------------------------------- + +#include "queryview.moc" |