void EbookController::ScrollToLink(PageDestination *dest)
{
int reparseIdx = dest->GetDestPageNo() - 1;
int pageNo = PageForReparsePoint(pages, reparseIdx);
if (pageNo > 0)
GoToPage(pageNo, true);
else if (0 == pageNo)
GoToLastPage();
}
// Given a page try to calculate its page number
void EbookController::UpdateCurrPageNoForPage(HtmlPage *pd)
{
currPageNo = 0;
if (!pd)
return;
// pages can have have the same reparse point, so finding them by
// reparse point is not reliable. try first to find by page object
if (GetPagesFromBeginning()) {
int n = GetPagesFromBeginning()->Find(pd) + 1;
if (n > 0) {
currPageNo = n;
return;
}
}
currPageNo = PageForReparsePoint(GetPagesFromBeginning(), pd->reparseIdx);
}
void EbookController::Navigate(int dir)
{
if (!CanNavigate(dir))
return;
// update the current history entry
int idx = currPageReparseIdx;
if (navHistoryIx < navHistory.Count())
navHistory.At(navHistoryIx) = idx;
else
navHistory.Append(idx);
navHistoryIx += dir;
idx = navHistory.At(navHistoryIx);
int pageNo = PageForReparsePoint(pages, idx);
if (0 == pageNo)
pageNo = GetMaxPageCount();
if (pageNo > 0)
GoToPage(pageNo, false);
}
void EbookController::HandlePagesFromEbookLayout(EbookFormattingData *ft)
{
if (formattingThreadNo != ft->threadNo) {
// this is a message from cancelled thread, we can disregard
lf("EbookController::HandlePagesFromEbookLayout() thread msg discarded, curr thread: %d, sending thread: %d", formattingThreadNo, ft->threadNo);
DeleteEbookFormattingData(ft);
return;
}
//lf("EbookController::HandlePagesFromEbookLayout() %d pages, ft=0x%x", ft->pageCount, (int)ft);
if (incomingPages) {
for (size_t i = 0; i < ft->pageCount; i++) {
incomingPages->Append(ft->pages[i]);
}
int pageNo = PageForReparsePoint(incomingPages, currPageReparseIdx);
if (pageNo > 0) {
Vec<HtmlPage*> *toDelete = pages;
pages = incomingPages;
incomingPages = nullptr;
DeletePages(&toDelete);
GoToPage(pageNo, false);
}
} else {
CrashIf(!pages);
for (size_t i = 0; i < ft->pageCount; i++) {
pages->Append(ft->pages[i]);
}
}
if (ft->finished) {
CrashIf(!pages);
StopFormattingThread();
}
UpdateStatus();
// don't call DeleteEbookFormattingData since
// ft->pages are now owned by incomingPages or pages
delete ft;
}
