[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, 95 insertions, 0 deletions

diff --git a/content/content.h b/content/content.h
new file mode 100644
index 000000000..ed93e7c24
--- /dev/null
+++ b/content/content.h
@@ -0,0 +1,95 @@
+/**
+ * $Id: content.h,v 1.1 2003/02/09 12:58:14 bursa Exp $
+ */
+
+#ifndef _NETSURF_DESKTOP_CONTENT_H_
+#define _NETSURF_DESKTOP_CONTENT_H_
+
+#include "libxml/HTMLparser.h"
+#include "netsurf/content/cache.h"
+#include "netsurf/render/css.h"
+#include "netsurf/render/box.h"
+#include "netsurf/riscos/font.h"
+
+
+/**
+ * A struct content corresponds to a single url.
+ *
+ * It is in one of the following states:
+ *   CONTENT_FETCHING - the data is being fetched and/or converted
+ *                      for use by the browser
+ *   CONTENT_READY - the content has been processed and is ready
+ *                      to display
+ *
+ * The converted data is stored in the cache, not the source data.
+ * Users of the structure are counted in use_count; when use_count = 0
+ * the content may be removed from the memory cache.
+ */
+
+typedef enum {CONTENT_HTML, CONTENT_TEXTPLAIN, CONTENT_CSS,
+	CONTENT_PNG, CONTENT_OTHER} content_type;
+
+struct box_position
+{
+  struct box* box;
+  int actual_box_x;
+  int actual_box_y;
+  int plot_index;
+  int pixel_offset;
+  int char_offset;
+};
+
+struct content
+{
+  char *url;
+  content_type type;
+  enum {CONTENT_LOADING, CONTENT_READY} status;
+
+  union
+  {
+    struct
+    {
+      htmlParserCtxt* parser;
+      xmlDoc* document;
+      xmlNode* markup;
+      struct box* layout;
+      struct css_stylesheet* stylesheet;
+      struct css_style* style;
+      struct {
+        struct box_position start;
+        struct box_position end;
+        enum {alter_UNKNOWN, alter_START, alter_END} altering;
+        int selected; /* 0 = unselected, 1 = selected */
+      } text_selection;
+      struct font_set* fonts;
+      struct page_elements elements;
+    } html;
+
+    struct
+    {
+      struct css_stylesheet * stylesheet;
+    } css;
+
+    struct
+    {
+      unsigned long width, height;
+      char * sprite;
+    } image;
+  
+  } data;
+
+  struct cache_entry *cache;
+  unsigned long size;
+  char *title;
+};
+
+
+content_type content_lookup(const char *mime_type);
+struct content * content_create(content_type type, char *url);
+void content_process_data(struct content *c, char *data, unsigned long size);
+int content_convert(struct content *c, unsigned long width, unsigned long height);
+void content_revive(struct content *c, unsigned long width, unsigned long height);
+void content_reformat(struct content *c, unsigned long width, unsigned long height);
+void content_destroy(struct content *c);
+
+#endif