[project @ 2003-02-09 12:58:14 by bursa]

Reorganization and rewrite of fetch, cache, and content handling.

svn path=/import/netsurf/; revision=96

1 files changed, 156 insertions, 0 deletions

diff --git a/render/html.c b/render/html.c
new file mode 100644
index 000000000..f500d3405
--- /dev/null
+++ b/render/html.c
@@ -0,0 +1,156 @@
+/**
+ * $Id: html.c,v 1.1 2003/02/09 12:58:15 bursa Exp $
+ */
+
+#include <assert.h>
+#include <string.h>
+#include <stdlib.h>
+#include "netsurf/desktop/gui.h"
+#include "netsurf/render/html.h"
+#include "netsurf/render/layout.h"
+#include "netsurf/utils/utils.h"
+#include "netsurf/utils/log.h"
+
+
+static void html_title(struct content *c);
+
+
+void html_create(struct content *c)
+{
+	c->data.html.parser = htmlCreatePushParserCtxt(0, 0, "", 0, 0, XML_CHAR_ENCODING_8859_1);
+	c->data.html.document = NULL;
+	c->data.html.markup = NULL;
+	c->data.html.layout = NULL;
+	c->data.html.stylesheet = NULL;
+	c->data.html.style = NULL;
+	c->data.html.fonts = NULL;
+}
+
+
+#define CHUNK 4096
+
+void html_process_data(struct content *c, char *data, unsigned long size)
+{
+	unsigned long x;
+	for (x = 0; x < size; x += CHUNK) {
+		htmlParseChunk(c->data.html.parser, data + x, CHUNK, 0);
+		gui_multitask();
+	}
+}
+
+
+int html_convert(struct content *c, unsigned int width, unsigned int height)
+{
+  char* file;
+  struct css_selector* selector = xcalloc(1, sizeof(struct css_selector));
+
+	htmlParseChunk(c->data.html.parser, "", 0, 1);
+	c->data.html.document = c->data.html.parser->myDoc;
+	/*xmlDebugDumpDocument(stderr, c->data.html.parser->myDoc);*/
+
+	LOG(("Skipping to html"));
+	if (c->data.html.document == NULL) {
+		LOG(("There is no document!"));
+		return 1;
+	}
+	for (c->data.html.markup = c->data.html.document->children;
+			c->data.html.markup != 0 && c->data.html.markup->type != XML_ELEMENT_NODE;
+			c->data.html.markup = c->data.html.markup->next)
+		;
+
+	if (c->data.html.markup == 0) {
+		LOG(("No markup"));
+		return 1;
+	}
+	if (stricmp((const char *) c->data.html.markup->name, "html")) {
+		LOG(("Not html"));
+		return 1;
+	}
+	
+	html_title(c);
+
+	/* TODO: rewrite stylesheet handling */
+  LOG(("Loading CSS"));
+  file = load("<NetSurf$Dir>.Resources.CSS");  /*!!! not portable! !!!*/
+  c->data.html.stylesheet = css_new_stylesheet();
+  LOG(("Parsing stylesheet"));
+  css_parse_stylesheet(c->data.html.stylesheet, file);
+
+  LOG(("Copying base style"));
+  c->data.html.style = xcalloc(1, sizeof(struct css_style));
+  memcpy(c->data.html.style, &css_base_style, sizeof(struct css_style));
+
+	LOG(("Creating box"));
+	c->data.html.layout = xcalloc(1, sizeof(struct box));
+	c->data.html.layout->type = BOX_BLOCK;
+	c->data.html.layout->node = c->data.html.markup;
+
+	c->data.html.fonts = font_new_set();
+
+	LOG(("XML to box"));
+	xml_to_box(c->data.html.markup, c->data.html.style, c->data.html.stylesheet,
+			&selector, 0, c->data.html.layout, 0, 0, c->data.html.fonts,
+			0, 0, 0, 0, &c->data.html.elements);
+	box_dump(c->data.html.layout->children, 0);
+
+	LOG(("Layout document"));
+	layout_document(c->data.html.layout->children, width);
+	box_dump(c->data.html.layout->children, 0);
+
+	return 0;
+}
+
+
+void html_title(struct content *c)
+{
+	xmlNode *node = c->data.html.markup;
+
+	c->title = 0;
+
+	while (node != 0) {
+		if (node->type == XML_ELEMENT_NODE) {
+			if (stricmp(node->name, "html") == 0) {
+				node = node->children;
+				continue;
+			}
+			if (stricmp(node->name, "head") == 0) {
+				node = node->children;
+				continue;
+			}
+			if (stricmp(node->name, "title") == 0) {
+				c->title = xmlNodeGetContent(node);
+				return;
+			}
+		}
+		node = node->next;
+	}
+}
+
+
+void html_revive(struct content *c, unsigned int width, unsigned int height)
+{
+	/* TODO: reload stylesheets and images and fix any pointers to them */
+	layout_document(c->data.html.layout->children, width);
+}
+
+
+void html_reformat(struct content *c, unsigned int width, unsigned int height)
+{
+	layout_document(c->data.html.layout->children, width);
+}
+
+
+void html_destroy(struct content *c)
+{
+	LOG(("content %p", c));
+
+	htmlFreeParserCtxt(c->data.html.parser);
+
+	if (c->data.html.document != 0)
+		xmlFreeDoc(c->data.html.document);
+	if (c->data.html.layout != 0)
+		box_free(c->data.html.layout);
+	if (c->data.html.fonts != 0)
+		font_free_set(c->data.html.fonts);
+	/* TODO: stylesheets */
+}