From 9f7ce17525de749758a343c03200cc40cccab056 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Tue, 25 Oct 2016 16:45:25 +0200
Subject: epub: Add links to XHTML and FB2 formats.

---
 source/html/epub-doc.c | 44 +++-----------------------------------------
 1 file changed, 3 insertions(+), 41 deletions(-)

(limited to 'source/html/epub-doc.c')

diff --git a/source/html/epub-doc.c b/source/html/epub-doc.c
index f9d9e6aa..7b44107b 100644
--- a/source/html/epub-doc.c
+++ b/source/html/epub-doc.c
@@ -34,49 +34,11 @@ struct epub_page_s
 	int number;
 };
 
-static int
-find_anchor_flow(fz_html_flow *flow, const char *anchor, float page_h)
-{
-	while (flow)
-	{
-		if (flow->box->id && !strcmp(anchor, flow->box->id))
-			return flow->y / page_h;
-		flow = flow->next;
-	}
-	return -1;
-}
-
-static int
-find_anchor_box(fz_html_box *box, const char *anchor, float page_h)
-{
-	int page;
-	while (box)
-	{
-		if (box->id && !strcmp(anchor, box->id))
-			return box->y / page_h;
-		if (box->type == BOX_FLOW)
-		{
-			page = find_anchor_flow(box->flow_head, anchor, page_h);
-			if (page >= 0)
-				return page;
-		}
-		else
-		{
-			page = find_anchor_box(box->down, anchor, page_h);
-			if (page >= 0)
-				return page;
-		}
-		box = box->next;
-	}
-	return -1;
-}
-
 static int
 epub_resolve_link(fz_context *ctx, fz_document *doc_, const char *dest)
 {
 	epub_document *doc = (epub_document*)doc_;
 	epub_chapter *ch;
-	int page = -1;
 
 	const char *s = strchr(dest, '#');
 	int n = s ? s - dest : strlen(dest);
@@ -90,9 +52,9 @@ epub_resolve_link(fz_context *ctx, fz_document *doc_, const char *dest)
 			if (s)
 			{
 				/* Search for a matching fragment */
-				page = find_anchor_box(ch->html->root, s+1, ch->page_h);
-				if (page >= 0)
-					return ch->start + page;
+				float y = fz_find_html_target(ctx, ch->html, s+1);
+				if (y >= 0)
+					return ch->start + y / ch->page_h;
 			}
 			return ch->start;
 		}
-- 
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