Implement continuous search

Show non-intrusive info messages whenever the search start over from the
beginning or the bottom of the document, instead of asking the user if
s/he wants to continue the search. This is consistent with search in
KWrite/Kate and with web browsers.

Based on work of and reviewed by Elvis Angelaccio

core/document.cpp

@@ -1609,13 +1609,15 @@ void DocumentPrivate::doContinueDirectionMatchSearch(void *doContinueDirectionMa
         if (search->pagesDone < pageCount)
         {
             doContinue = true;
-            if ( searchStruct->currentPage >= pageCount || searchStruct->currentPage < 0 )
+            if ( searchStruct->currentPage >= pageCount )
             {
-                doContinue = false;
-                search->isCurrentlySearching = false;
-                search->continueOnPage = forward ? 0 : pageCount - 1;
-                search->continueOnMatch = RegularAreaRect();
-                emit m_parent->searchFinished ( searchStruct->searchID, Document::EndOfDocumentReached );
+                searchStruct->currentPage = 0;
+                emit m_parent->notice(i18n("Continuing search from beginning"), 3000);
+            }
+            else if ( searchStruct->currentPage < 0 )
+            {
+                searchStruct->currentPage = pageCount - 1;
+                emit m_parent->notice(i18n("Continuing search from bottom"), 3000);
             }
         }
     }

core/document.h

@@ -608,12 +608,13 @@ class OKULARCORE_EXPORT Document : public QObject
         /**
          * Describes how search ended
          */
+        // TODO remove EndOfDocumentReached when we break API
         enum SearchStatus
         {
             MatchFound,           ///< Any match was found
             NoMatchFound,         ///< No match was found
             SearchCancelled,      ///< The search was cancelled
-            EndOfDocumentReached  ///< The end of document was reached without any match @since 0.20 (KDE 4.14)
+            EndOfDocumentReached  ///< This is not ever emitted since 1.3. The end of document was reached without any match @since 0.20 (KDE 4.14)
         };
 
         /**

ui/searchlineedit.cpp

@@ -271,15 +271,6 @@ void SearchLineEdit::searchFinished( int id, Okular::Document::SearchStatus endS
         setPalette( pal );
     }
 
-    if ( endStatus == Okular::Document::EndOfDocumentReached ) {
-        const bool forward = m_searchType == Okular::Document::NextMatch;
-        const QString question = forward ? i18n("End of document reached.\nContinue from the beginning?") : i18n("Beginning of document reached.\nContinue from the bottom?");
-        if ( KMessageBox::questionYesNo(window(), question, QString(), KStandardGuiItem::cont(), KStandardGuiItem::cancel()) == KMessageBox::Yes ) {
-            m_document->continueSearch( m_id, m_searchType );
-            return;
-        }
-    }
-
     m_searchRunning = false;
     emit searchStopped();
 }