/* Copyright (C) 2005 J.F.Dockes
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "autoconfig.h"
#include <time.h>
#include <stdlib.h>
#include <qapplication.h>
#include <qvariant.h>
#include <qevent.h>
#include <qmenu.h>
#include <qpushbutton.h>
#include <qlayout.h>
#include <qtooltip.h>
#include <qwhatsthis.h>
#include <qtimer.h>
#include <qmessagebox.h>
#include <qimage.h>
#include <qclipboard.h>
#include <qscrollbar.h>
#include <QTextBlock>
#ifndef __APPLE__
#include <qx11info_x11.h>
#endif
#include "debuglog.h"
#include "smallut.h"
#include "recoll.h"
#include "guiutils.h"
#include "pathut.h"
#include "docseq.h"
#include "pathut.h"
#include "mimehandler.h"
#include "plaintorich.h"
#include "refcntr.h"
#include "internfile.h"
#include "reslist.h"
#include "moc_reslist.cpp"
#include "rclhelp.h"
#ifdef RCL_USE_ASPELL
#include "rclaspell.h"
#endif
#ifndef MIN
#define MIN(A,B) ((A) < (B) ? (A) : (B))
#endif
class QtGuiResListPager : public ResListPager {
public:
QtGuiResListPager(ResList *p, int ps)
: ResListPager(ps), m_parent(p)
{}
virtual bool append(const string& data);
virtual bool append(const string& data, int idx, const Rcl::Doc& doc);
virtual string trans(const string& in);
virtual string detailsLink();
virtual const string &parFormat();
virtual string nextUrl();
virtual string prevUrl();
virtual string pageTop();
virtual string iconPath(const string& mt);
virtual void suggest(const vector<string>uterms, vector<string>&sugg);
virtual string absSep() {return (const char *)(prefs.abssep.toUtf8());}
private:
ResList *m_parent;
};
#if 0
FILE *fp;
void logdata(const char *data)
{
if (fp == 0)
fp = fopen("/tmp/recolltoto.html", "a");
if (fp)
fprintf(fp, "%s", data);
}
#else
#define logdata(X)
#endif
//////////////////////////////
// /// QtGuiResListPager methods:
bool QtGuiResListPager::append(const string& data)
{
LOGDEB2(("QtGuiReslistPager::appendString : %s\n", data.c_str()));
logdata(data.c_str());
m_parent->append(QString::fromUtf8(data.c_str()));
return true;
}
bool QtGuiResListPager::append(const string& data, int docnum,
const Rcl::Doc&)
{
LOGDEB2(("QtGuiReslistPager::appendDoc: blockCount %d, %s\n",
m_parent->document()->blockCount(), data.c_str()));
logdata(data.c_str());
int blkcnt0 = m_parent->document()->blockCount();
m_parent->moveCursor(QTextCursor::End, QTextCursor::MoveAnchor);
m_parent->textCursor().insertBlock();
m_parent->insertHtml(QString::fromUtf8(data.c_str()));
m_parent->moveCursor(QTextCursor::Start, QTextCursor::MoveAnchor);
m_parent->ensureCursorVisible();
int blkcnt1 = m_parent->document()->blockCount();
for (int block = blkcnt0; block < blkcnt1; block++) {
m_parent->m_pageParaToReldocnums[block] = docnum;
}
return true;
}
string QtGuiResListPager::trans(const string& in)
{
return string((const char*)ResList::tr(in.c_str()).toUtf8());
}
string QtGuiResListPager::detailsLink()
{
string chunk = "<a href=\"H-1\">";
chunk += trans("(show query)");
chunk += "</a>";
return chunk;
}
const string& QtGuiResListPager::parFormat()
{
return prefs.creslistformat;
}
string QtGuiResListPager::nextUrl()
{
return "n-1";
}
string QtGuiResListPager::prevUrl()
{
return "p-1";
}
string QtGuiResListPager::pageTop()
{
return string();
}
string QtGuiResListPager::iconPath(const string& mtype)
{
string iconpath;
theconfig->getMimeIconName(mtype, &iconpath);
return iconpath;
}
void QtGuiResListPager::suggest(const vector<string>uterms, vector<string>&sugg)
{
sugg.clear();
#ifdef RCL_USE_ASPELL
bool noaspell = false;
theconfig->getConfParam("noaspell", &noaspell);
if (noaspell)
return;
if (!aspell) {
LOGERR(("QtGuiResListPager:: aspell not initialized\n"));
return;
}
for (vector<string>::const_iterator uit = uterms.begin();
uit != uterms.end(); uit++) {
list<string> asuggs;
string reason;
if (aspell->check(*rcldb, *uit, reason))
continue;
else if (!reason.empty())
return;
if (!aspell->suggest(*rcldb, *uit, asuggs, reason)) {
LOGERR(("QtGuiResListPager::suggest: aspell failed: %s\n",
reason.c_str()));
continue;
}
if (!asuggs.empty()) {
sugg.push_back(*asuggs.begin());
}
}
#endif
}
/////// /////// End reslistpager methods
class PlainToRichQtReslist : public PlainToRich {
public:
virtual ~PlainToRichQtReslist() {}
virtual string startMatch() {
return string("<span style='color: ")
+ string((const char *)prefs.qtermcolor.toAscii()) + string("'>");
}
virtual string endMatch() {return string("</span>");}
};
static PlainToRichQtReslist g_hiliter;
/////////////////////////////////////
ResList::ResList(QWidget* parent, const char* name)
: QTextBrowser(parent)
{
if (!name)
setObjectName("resList");
else
setObjectName(name);
setReadOnly(TRUE);
setUndoRedoEnabled(FALSE);
setOpenLinks(FALSE);
languageChange();
setTabChangesFocus(true);
(void)new HelpClient(this);
HelpClient::installMap((const char *)this->objectName().toAscii(),
"RCL.SEARCH.RESLIST");
// signals and slots connections
connect(this, SIGNAL(anchorClicked(const QUrl &)),
this, SLOT(linkWasClicked(const QUrl &)));
#if 0
// See comments in "highlighted
connect(this, SIGNAL(highlighted(const QString &)),
this, SLOT(highlighted(const QString &)));
#endif
setContextMenuPolicy(Qt::CustomContextMenu);
connect(this, SIGNAL(customContextMenuRequested(const QPoint&)),
this, SLOT(createPopupMenu(const QPoint&)));
m_curPvDoc = -1;
m_lstClckMod = 0;
m_listId = 0;
m_pager = new QtGuiResListPager(this, prefs.respagesize);
m_pager->setHighLighter(&g_hiliter);
if (prefs.reslistfontfamily.length()) {
QFont nfont(prefs.reslistfontfamily, prefs.reslistfontsize);
setFont(nfont);
}
}
ResList::~ResList()
{
// These have to exist somewhere for translations to work
#ifdef __GNUC__
__attribute__((unused))
#endif
static const char* strings[] = {
QT_TR_NOOP("<p><b>No results found</b><br>"),
QT_TR_NOOP("Documents"),
QT_TR_NOOP("out of at least"),
QT_TR_NOOP("for"),
QT_TR_NOOP("Previous"),
QT_TR_NOOP("Next"),
QT_TR_NOOP("Unavailable document"),
QT_TR_NOOP("Preview"),
QT_TR_NOOP("Open"),
QT_TR_NOOP("(show query)"),
QT_TR_NOOP("<p><i>Alternate spellings (accents suppressed): </i>"),
};
}
int ResList::newListId()
{
static int id;
return ++id;
}
extern "C" int XFlush(void *);
void ResList::setDocSource(RefCntr<DocSequence> nsource)
{
LOGDEB(("ResList::setDocSource()\n"));
m_source = RefCntr<DocSequence>(new DocSource(nsource));
}
// Reapply parameters. Sort params probably changed
void ResList::readDocSource()
{
LOGDEB(("ResList::readDocSource()\n"));
resetView();
if (m_source.isNull())
return;
m_listId = newListId();
// Reset the page size in case the preference was changed
m_pager->setPageSize(prefs.respagesize);
m_pager->setDocSource(m_source);
resultPageNext();
emit hasResults(m_source->getResCnt());
}
void ResList::setSortParams(DocSeqSortSpec)
{
LOGDEB2(("ResList::setSortParams\n"));
}
void ResList::setFilterParams(const DocSeqFiltSpec&)
{
LOGDEB2(("ResList::setFilterParams\n"));
}
void ResList::resetList()
{
LOGDEB(("ResList::resetList()\n"));
setDocSource(RefCntr<DocSequence>());
resetView();
}
void ResList::resetView()
{
m_curPvDoc = -1;
// There should be a progress bar for long searches but there isn't
// We really want the old result list to go away, otherwise, for a
// slow search, the user will wonder if anything happened. The
// following helps making sure that the textedit is really
// blank. Else, there are often icons or text left around
clear();
QTextBrowser::append(".");
clear();
#ifndef __APPLE__
XFlush(QX11Info::display());
#endif
}
bool ResList::displayingHistory()
{
// We want to reset the displayed history if it is currently
// shown. Using the title value is an ugly hack
string htstring = string((const char *)tr("Document history").toUtf8());
if (m_source.isNull() || m_source->title().empty())
return false;
return m_source->title().find(htstring) == 0;
}
void ResList::languageChange()
{
setWindowTitle(tr("Result list"));
}
// Get document number from text block number
int ResList::docnumfromparnum(int block)
{
if (m_pager->pageNumber() < 0)
return -1;
// Try to find the first number < input and actually in the map
// (result blocks can be made of several text blocks)
std::map<int,int>::iterator it;
do {
it = m_pageParaToReldocnums.find(block);
if (it != m_pageParaToReldocnums.end())
return pageFirstDocNum() + it->second;
} while (--block >= 0);
return -1;
}
// Get paragraph number from document number
pair<int,int> ResList::parnumfromdocnum(int docnum)
{
LOGDEB(("parnumfromdocnum: docnum %d\n", docnum));
if (m_pager->pageNumber() < 0) {
LOGDEB(("parnumfromdocnum: no page return -1,-1\n"));
return pair<int,int>(-1,-1);
}
int winfirst = pageFirstDocNum();
if (docnum - winfirst < 0) {
LOGDEB(("parnumfromdocnum: docnum %d < winfirst %d return -1,-1\n",
docnum, winfirst));
return pair<int,int>(-1,-1);
}
docnum -= winfirst;
for (std::map<int,int>::iterator it = m_pageParaToReldocnums.begin();
it != m_pageParaToReldocnums.end(); it++) {
if (docnum == it->second) {
int first = it->first;
int last = first+1;
std::map<int,int>::iterator it1;
while ((it1 = m_pageParaToReldocnums.find(last)) !=
m_pageParaToReldocnums.end() && it1->second == docnum) {
last++;
}
LOGDEB(("parnumfromdocnum: return %d,%d\n", first, last));
return pair<int,int>(first, last);
}
}
LOGDEB(("parnumfromdocnum: not found return -1,-1\n"));
return pair<int,int>(-1,-1);
}
// Return doc from current or adjacent result pages. We can get called
// for a document not in the current page if the user browses through
// results inside a result window (with shift-arrow). This can only
// result in a one-page change.
bool ResList::getDoc(int docnum, Rcl::Doc &doc)
{
LOGDEB(("ResList::getDoc: docnum %d winfirst %d\n", docnum,
pageFirstDocNum()));
int winfirst = pageFirstDocNum();
int winlast = m_pager->pageLastDocNum();
if (docnum < 0 || winfirst < 0 || winlast < 0)
return false;
// Is docnum in current page ? Then all Ok
if (docnum >= winfirst && docnum <= winlast) {
return m_source->getDoc(docnum, doc);
}
// Else we accept to page down or up but not further
if (docnum < winfirst && docnum >= winfirst - prefs.respagesize) {
resultPageBack();
} else if (docnum < winlast + 1 + prefs.respagesize) {
resultPageNext();
}
winfirst = pageFirstDocNum();
winlast = m_pager->pageLastDocNum();
if (docnum >= winfirst && docnum <= winlast) {
return m_source->getDoc(docnum, doc);
}
return false;
}
void ResList::keyPressEvent(QKeyEvent * e)
{
if (e->key() == Qt::Key_PageUp || e->key() == Qt::Key_Backspace) {
resPageUpOrBack();
return;
} else if (e->key() == Qt::Key_PageDown || e->key() == Qt::Key_Space) {
resPageDownOrNext();
return;
}
QTextBrowser::keyPressEvent(e);
}
void ResList::mouseReleaseEvent(QMouseEvent *e)
{
m_lstClckMod = 0;
if (e->modifiers() & Qt::ControlModifier) {
m_lstClckMod |= Qt::ControlModifier;
}
if (e->modifiers() & Qt::ShiftModifier) {
m_lstClckMod |= Qt::ShiftModifier;
}
QTextBrowser::mouseReleaseEvent(e);
}
void ResList::highlighted(const QString& )
{
// This is supposedly called when a link is preactivated (hover or tab
// traversal, but is not actually called for tabs. We would have liked to
// give some kind of visual feedback for tab traversal
}
// Page Up/Down: we don't try to check if current paragraph is last or
// first. We just page up/down and check if viewport moved. If it did,
// fair enough, else we go to next/previous result page.
void ResList::resPageUpOrBack()
{
int vpos = verticalScrollBar()->value();
verticalScrollBar()->triggerAction(QAbstractSlider::SliderPageStepSub);
if (vpos == verticalScrollBar()->value())
resultPageBack();
}
void ResList::resPageDownOrNext()
{
int vpos = verticalScrollBar()->value();
verticalScrollBar()->triggerAction(QAbstractSlider::SliderPageStepAdd);
LOGDEB(("ResList::resPageDownOrNext: vpos before %d, after %d\n",
vpos, verticalScrollBar()->value()));
if (vpos == verticalScrollBar()->value())
resultPageNext();
}
// Show previous page of results. We just set the current number back
// 2 pages and show next page.
void ResList::resultPageBack()
{
m_pager->resultPageBack();
displayPage();
}
// Go to the first page
void ResList::resultPageFirst()
{
// In case the preference was changed
m_pager->setPageSize(prefs.respagesize);
m_pager->resultPageFirst();
displayPage();
}
void ResList::append(const QString &text)
{
LOGDEB2(("QtGuiReslistPager::appendQString : %s\n",
(const char*)text.toUtf8()));
QTextBrowser::append(text);
}
// Fill up result list window with next screen of hits
void ResList::resultPageNext()
{
m_pager->resultPageNext();
displayPage();
}
void ResList::resultPageFor(int docnum)
{
m_pager->resultPageFor(docnum);
displayPage();
}
void ResList::displayPage()
{
m_pageParaToReldocnums.clear();
clear();
m_pager->displayPage(theconfig);
LOGDEB0(("ResList::resultPageNext: hasNext %d hasPrev %d\n",
m_pager->hasPrev(), m_pager->hasNext()));
emit prevPageAvailable(m_pager->hasPrev());
emit nextPageAvailable(m_pager->hasNext());
// Possibly color paragraph of current preview if any
previewExposed(m_curPvDoc);
ensureCursorVisible();
}
// Color paragraph (if any) of currently visible preview
void ResList::previewExposed(int docnum)
{
LOGDEB(("ResList::previewExposed: doc %d\n", docnum));
// Possibly erase old one to white
pair<int,int> blockrange;
if (m_curPvDoc != -1) {
blockrange = parnumfromdocnum(m_curPvDoc);
if (blockrange.first != -1) {
for (int blockn = blockrange.first;
blockn < blockrange.second; blockn++) {
QTextBlock block = document()->findBlockByNumber(blockn);
QTextCursor cursor(block);
QTextBlockFormat format = cursor.blockFormat();
format.clearBackground();
cursor.setBlockFormat(format);
}
}
m_curPvDoc = -1;
}
// Set background for active preview's doc entry
m_curPvDoc = docnum;
blockrange = parnumfromdocnum(docnum);
// Maybe docnum is -1 or not in this window,
if (blockrange.first < 0)
return;
// Color the new active paragraph
QColor color("LightBlue");
for (int blockn = blockrange.first+1;
blockn < blockrange.second; blockn++) {
QTextBlock block = document()->findBlockByNumber(blockn);
QTextCursor cursor(block);
QTextBlockFormat format;
format.setBackground(QBrush(color));
cursor.mergeBlockFormat(format);
setTextCursor(cursor);
ensureCursorVisible();
}
}
// Double click in res list: add selection to simple search
void ResList::mouseDoubleClickEvent(QMouseEvent *event)
{
QTextBrowser::mouseDoubleClickEvent(event);
if (textCursor().hasSelection())
emit(wordSelect(textCursor().selectedText()));
}
void ResList::linkWasClicked(const QUrl &url)
{
QByteArray s = url.toString().toAscii();
const char *ascurl = (const char *)s;
LOGDEB(("ResList::linkWasClicked: [%s]\n", ascurl));
int i = atoi(ascurl+1) - 1;
int what = ascurl[0];
switch (what) {
case 'H':
emit headerClicked();
break;
case 'P':
case 'E':
{
Rcl::Doc doc;
if (!getDoc(i, doc)) {
LOGERR(("ResList::linkWasClicked: can't get doc for %d\n", i));
return;
}
if (what == 'P')
emit docPreviewClicked(i, doc, m_lstClckMod);
else
emit docEditClicked(doc);
}
break;
case 'n':
resultPageNext();
break;
case 'p':
resultPageBack();
break;
default:
LOGERR(("ResList::linkWasClicked: bad link [%s]\n", ascurl));
break;// ??
}
}
void ResList::createPopupMenu(const QPoint& pos)
{
LOGDEB(("ResList::createPopupMenu(%d, %d)\n", pos.x(), pos.y()));
QTextCursor cursor = cursorForPosition(pos);
int blocknum = cursor.blockNumber();
LOGDEB(("ResList::createPopupMenu(): block %d\n", blocknum));
m_popDoc = docnumfromparnum(blocknum);
if (m_popDoc < 0)
return;
QMenu *popup = new QMenu(this);
popup->addAction(tr("&Preview"), this, SLOT(menuPreview()));
popup->addAction(tr("&Open"), this, SLOT(menuEdit()));
popup->addAction(tr("Copy &File Name"), this, SLOT(menuCopyFN()));
popup->addAction(tr("Copy &URL"), this, SLOT(menuCopyURL()));
Rcl::Doc doc;
if (getDoc(m_popDoc, doc) && !doc.ipath.empty()) {
popup->addAction(tr("&Write to File"), this, SLOT(menuSaveToFile()));
}
popup->addAction(tr("Find &similar documents"), this, SLOT(menuExpand()));
popup->addAction(tr("Preview P&arent document/folder"),
this, SLOT(menuPreviewParent()));
popup->addAction(tr("&Open Parent document/folder"),
this, SLOT(menuOpenParent()));
popup->popup(mapToGlobal(pos));
}
void ResList::menuPreview()
{
Rcl::Doc doc;
if (getDoc(m_popDoc, doc))
emit docPreviewClicked(m_popDoc, doc, 0);
}
void ResList::menuSaveToFile()
{
Rcl::Doc doc;
if (getDoc(m_popDoc, doc))
emit docSaveToFileClicked(doc);
}
void ResList::menuPreviewParent()
{
Rcl::Doc doc;
if (!getDoc(m_popDoc, doc) || m_source.isNull())
return;
Rcl::Doc pdoc;
if (m_source->getEnclosing(doc, pdoc)) {
emit previewRequested(pdoc);
} else {
// No parent doc: show enclosing folder with app configured for
// directories
pdoc.url = path_getfather(doc.url);
pdoc.mimetype = "application/x-fsdirectory";
emit editRequested(pdoc);
}
}
void ResList::menuOpenParent()
{
Rcl::Doc doc;
if (!getDoc(m_popDoc, doc) || m_source.isNull())
return;
Rcl::Doc pdoc;
if (m_source->getEnclosing(doc, pdoc)) {
emit editRequested(pdoc);
} else {
// No parent doc: show enclosing folder with app configured for
// directories
pdoc.url = path_getfather(doc.url);
pdoc.mimetype = "application/x-fsdirectory";
emit editRequested(pdoc);
}
}
void ResList::menuEdit()
{
Rcl::Doc doc;
if (getDoc(m_popDoc, doc))
emit docEditClicked(doc);
}
void ResList::menuCopyFN()
{
LOGDEB(("menuCopyFN\n"));
Rcl::Doc doc;
if (getDoc(m_popDoc, doc)) {
LOGDEB(("menuCopyFN: Got doc, fn: [%s]\n", doc.url.c_str()));
// Our urls currently always begin with "file://"
//
// Problem: setText expects a QString. Passing a (const char*)
// as we used to do causes an implicit conversion from
// latin1. File are binary and the right approach would be no
// conversion, but it's probably better (less worse...) to
// make a "best effort" tentative and try to convert from the
// locale's charset than accept the default conversion.
QString qfn = QString::fromLocal8Bit(doc.url.c_str()+7);
QApplication::clipboard()->setText(qfn, QClipboard::Selection);
QApplication::clipboard()->setText(qfn, QClipboard::Clipboard);
}
}
void ResList::menuCopyURL()
{
Rcl::Doc doc;
if (getDoc(m_popDoc, doc)) {
string url = url_encode(doc.url, 7);
QApplication::clipboard()->setText(url.c_str(),
QClipboard::Selection);
QApplication::clipboard()->setText(url.c_str(),
QClipboard::Clipboard);
}
}
void ResList::menuExpand()
{
Rcl::Doc doc;
if (getDoc(m_popDoc, doc))
emit docExpand(doc);
}
int ResList::pageFirstDocNum()
{
return m_pager->pageFirstDocNum();
}