Merge branch 'html'

Conflicts:
	Makefile

1 files changed, 166 insertions, 0 deletions

diff --git a/source/html/html-doc.c b/source/html/html-doc.c
new file mode 100644
index 00000000..7217f74c
--- /dev/null
+++ b/source/html/html-doc.c
@@ -0,0 +1,166 @@
+#include "mupdf/html.h"
+
+#define DEFW (450)
+#define DEFH (600)
+#define DEFEM (12)
+
+typedef struct html_document_s html_document;
+typedef struct html_page_s html_page;
+
+struct html_document_s
+{
+	fz_document super;
+	fz_archive *zip;
+	fz_html_font_set *set;
+	float page_w, page_h, em;
+	fz_html *box;
+};
+
+struct html_page_s
+{
+	fz_page super;
+	html_document *doc;
+	int number;
+};
+
+static void
+htdoc_close_document(fz_context *ctx, fz_document *doc_)
+{
+	html_document *doc = (html_document*)doc_;
+	fz_drop_archive(ctx, doc->zip);
+	fz_drop_html(ctx, doc->box);
+	fz_drop_html_font_set(ctx, doc->set);
+	fz_free(ctx, doc);
+}
+
+static int
+htdoc_count_pages(fz_context *ctx, fz_document *doc_)
+{
+	html_document *doc = (html_document*)doc_;
+	int count = ceilf(doc->box->h / doc->page_h);
+	return count;
+}
+
+static void
+htdoc_layout(fz_context *ctx, fz_document *doc_, float w, float h, float em)
+{
+	html_document *doc = (html_document*)doc_;
+	doc->page_w = w;
+	doc->page_h = h;
+	doc->em = em;
+	fz_layout_html(ctx, doc->box, w, h, em);
+}
+
+static void
+htdoc_drop_page_imp(fz_context *ctx, fz_page *page_)
+{
+}
+
+static fz_rect *
+htdoc_bound_page(fz_context *ctx, fz_page *page_, fz_rect *bbox)
+{
+	html_page *page = (html_page*)page_;
+	html_document *doc = page->doc;
+	bbox->x0 = bbox->y0 = 0;
+	bbox->x1 = doc->page_w;
+	bbox->y1 = doc->page_h;
+	return bbox;
+}
+
+static void
+htdoc_run_page(fz_context *ctx, fz_page *page_, fz_device *dev, const fz_matrix *ctm, fz_cookie *cookie)
+{
+	html_page *page = (html_page*)page_;
+	html_document *doc = page->doc;
+	int n = page->number;
+	fz_draw_html(ctx, doc->box, n * doc->page_h, (n+1) * doc->page_h, dev, ctm);
+}
+
+static fz_page *
+htdoc_load_page(fz_context *ctx, fz_document *doc_, int number)
+{
+	html_document *doc = (html_document*)doc_;
+	html_page *page = fz_new_page(ctx, sizeof *page);
+	page->super.bound_page = htdoc_bound_page;
+	page->super.run_page_contents = htdoc_run_page;
+	page->super.drop_page_imp = htdoc_drop_page_imp;
+	page->doc = doc;
+	page->number = number;
+	return (fz_page*)page;
+}
+
+static html_document *
+htdoc_open_document_with_stream(fz_context *ctx, fz_stream *file)
+{
+	html_document *doc;
+	fz_buffer *buf;
+
+	doc = fz_malloc_struct(ctx, html_document);
+	doc->zip = fz_open_directory(ctx, ".");
+	doc->set = fz_new_html_font_set(ctx);
+
+	doc->super.close = htdoc_close_document;
+	doc->super.layout = htdoc_layout;
+	doc->super.count_pages = htdoc_count_pages;
+	doc->super.load_page = htdoc_load_page;
+
+	buf = fz_read_all(ctx, file, 0);
+	fz_write_buffer_byte(ctx, buf, 0);
+	doc->box = fz_parse_html(ctx, doc->set, doc->zip, ".", buf, NULL);
+	fz_drop_buffer(ctx, buf);
+
+	htdoc_layout(ctx, (fz_document*)doc, DEFW, DEFH, DEFEM);
+
+	return doc;
+}
+
+static html_document *
+htdoc_open_document(fz_context *ctx, const char *filename)
+{
+	char dirname[2048];
+	fz_buffer *buf;
+	html_document *doc;
+
+	fz_dirname(dirname, filename, sizeof dirname);
+
+	doc = fz_malloc_struct(ctx, html_document);
+	doc->zip = fz_open_directory(ctx, dirname);
+	doc->set = fz_new_html_font_set(ctx);
+
+	doc->super.close = htdoc_close_document;
+	doc->super.layout = htdoc_layout;
+	doc->super.count_pages = htdoc_count_pages;
+	doc->super.load_page = htdoc_load_page;
+
+	buf = fz_read_file(ctx, filename);
+	fz_write_buffer_byte(ctx, buf, 0);
+	doc->box = fz_parse_html(ctx, doc->set, doc->zip, ".", buf, NULL);
+	fz_drop_buffer(ctx, buf);
+
+	htdoc_layout(ctx, (fz_document*)doc, DEFW, DEFH, DEFEM);
+
+	return doc;
+}
+
+static int
+htdoc_recognize(fz_context *doc, const char *magic)
+{
+	char *ext = strrchr(magic, '.');
+
+	if (ext)
+	{
+		if (!fz_strcasecmp(ext, ".xml") || !fz_strcasecmp(ext, ".xhtml") || !fz_strcasecmp(ext, ".html"))
+			return 100;
+	}
+	if (!strcmp(magic, "application/html+xml") || !strcmp(magic, "application/xml") || !strcmp(magic, "text/xml"))
+		return 100;
+
+	return 0;
+}
+
+fz_document_handler html_document_handler =
+{
+	(fz_document_recognize_fn *)&htdoc_recognize,
+	(fz_document_open_fn *)&htdoc_open_document,
+	(fz_document_open_with_stream_fn *)&htdoc_open_document_with_stream
+};