private void NavigateToPercent(BookLocation location)
{
var navScript = $"scrollToPercent({location.ScrollPercent});\n";
uiAllUpPosition.UpdatePosition(location.HtmlIndex, location.HtmlPercent);
if (CurrHtmlIndex == location.HtmlIndex)
{
// Great! just scroll to the place!
Logger.Log($"Main EBOOK: navigate to SAME html");
var task = uiHtml.InvokeScriptAsync("scrollToPercent", new List <string>()
{
location.ScrollPercent.ToString()
});
DoUserNavigateToAsNeeded();
return;
}
else
{
if (Logger.LogExtraTiming)
{
Logger.Log($"Main EBOOK: navigate to other html (htmlindex={location.HtmlIndex})");
}
var foundIndex = location.HtmlIndex;
var foundHtml = EpubWizard.FindHtmlByIndex(EpubBook, foundIndex);
if (Logger.LogExtraTiming)
{
Logger.Log($"Main EBOOK: navigate to other html {foundIndex}=len {foundHtml?.Length}");
}
var html = HtmlFixup.FixupHtmlAll(foundHtml);
DeferredNavigation = navScript;
CurrHtml = html;
CurrHtmlIndex = foundIndex;
CurrHtmlFileName = location.HtmlFileName;
Logger.Log($"Main EBOOK: about to navigate with deferred navigation {DeferredNavigation}");
uiHtml.NavigateToString(html);
}
SavePositionEZ();
}
private void NavigateToLocation(BookLocation location)
{
// Gutenberg: just a location which we have to figure out
// BAEN: HtmlFileName and (for sub-chapters) a Location, too.
// Location might have just an id in it
// OR it might have just an HtmlFileName
// USPS: the location is an XHTML file that's encoded: Additional%20Resources.xhtml instead of Additional Resources.html
//
// OR an id+HtmlIndex.
// We actually don't need the index!
if (!string.IsNullOrEmpty(location.HtmlFileName))
{
// Jump to percent 0.0 after finding the html by name.
// navScript is either to an id or just to the top
var navScript = string.IsNullOrEmpty(location.Location) ? $"scrollToPercent(0.0)" : $"scrollToId('{location.Location}')";
var(foundHtml, foundIndex, foundHtmlFileName) = EpubWizard.FindHtmlContainingHtmlFileName(EpubBook, location.HtmlFileName);
if (foundHtml == null)
{
App.Error($"ERROR: unable to navigate to htmlFileName={location.HtmlFileName}");
return; // nuts; can't find it.
}
// If we're jumping to the current spot, meh, don't bother to optimize.
// Maybe the user wants to do the full amount of code because of "issues"
var html = HtmlFixup.FixupHtmlAll(foundHtml);
DeferredNavigation = navScript;
uiHtml.NavigateToString(html);
CurrHtml = html;
CurrHtmlIndex = foundIndex;
CurrHtmlFileName = foundHtmlFileName;
return;
}
else
{
string id = location.Location;
// Find the html with the tag
// FAIL: BAEN books only navigate by html name. The name will be found in the TOC because there are links!
// FAIL: Gutenberg John Thorndyke Cases searching for the shoes.png. The long id @public@vhost@g@gutenberg@html@files@13882@13882-h@[email protected]
// is found in the first HTML but only because that HTML includes a list of illustrations which point to an HTML file that includes the
// shoes.png file (but that html file has a name that starts with the png but then adds on .wrap-0.html.html.
// The code here used to just see if the current HTML includes the id at all; the better code checks to make sure it's a proper href.
if (CurrHtml != null && EpubWizard.HtmlStringIdIndexOf(CurrHtml, id, true) >= 0 && CurrHtml.Contains("scrollToId"))
{
var task = uiHtml.InvokeScriptAsync("scrollToId", new List <string>()
{
id
});
DoUserNavigateToAsNeeded();
return;
}
var idList = EpubWizard.GetIdVariants(id);
var(foundHtml, foundIndex, foundHtmlFileName, foundId) = EpubWizard.FindHtmlContainingId(EpubBook, idList, location.HtmlIndex);
if (foundHtml == null)
{
App.Error($"ERROR: unable to navigate to {id}");
return; // nuts; can't find it.
}
var navScript = $"scrollToId('{foundId}')";
var html = HtmlFixup.FixupHtmlAll(foundHtml);
DeferredNavigation = navScript;
uiHtml.NavigateToString(html);
CurrHtml = html;
CurrHtmlIndex = foundIndex;
CurrHtmlFileName = foundHtmlFileName;
}
SavePositionEZ();
}