* add TnyStreamIface implementation using gtkhtml

pmo-trunk-r80

diff --git a/src/modest-tny-stream-gtkhtml.c b/src/modest-tny-stream-gtkhtml.c
new file mode 100644 (file)
index 0000000..3f67145
--- /dev/null
+++ b/src/modest-tny-stream-gtkhtml.c
@@ -0,0 +1,222 @@
+/* modest-tny-stream-gtkhtml.c */
+
+/* insert (c)/licensing information) */
+
+#include "modest-tny-stream-gtkhtml.h"
+#include <gtkhtml/gtkhtml-stream.h>
+#include <gtkhtml/gtkhtml-search.h>
+
+/* 'private'/'protected' functions */
+static void  modest_tny_stream_gtkhtml_class_init   (ModestTnyStreamGtkhtmlClass *klass);
+static void  modest_tny_stream_gtkhtml_init         (ModestTnyStreamGtkhtml *obj);
+static void  modest_tny_stream_gtkhtml_finalize     (GObject *obj);
+
+static void  modest_tny_stream_gtkhml_iface_init (gpointer g_iface, gpointer iface_data);
+
+/* list my signals */
+enum {
+       /* MY_SIGNAL_1, */
+       /* MY_SIGNAL_2, */
+       LAST_SIGNAL
+};
+
+typedef struct _ModestTnyStreamGtkhtmlPrivate ModestTnyStreamGtkhtmlPrivate;
+struct _ModestTnyStreamGtkhtmlPrivate {
+       GtkHTML       *gtkhtml;
+       GtkHTMLStream *stream;
+};
+#define MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
+                                                       MODEST_TYPE_TNY_STREAM_GTKHTML, \
+                                                       ModestTnyStreamGtkhtmlPrivate))
+/* globals */
+static GObjectClass *parent_class = NULL;
+
+/* uncomment the following if you have defined any signals */
+/* static guint signals[LAST_SIGNAL] = {0}; */
+
+GType
+modest_tny_stream_gtkhtml_get_type (void)
+{
+       static GType my_type = 0;
+       if (!my_type) {
+               static const GTypeInfo my_info = {
+                       sizeof(ModestTnyStreamGtkhtmlClass),
+                       NULL,           /* base init */
+                       NULL,           /* base finalize */
+                       (GClassInitFunc) modest_tny_stream_gtkhtml_class_init,
+                       NULL,           /* class finalize */
+                       NULL,           /* class data */
+                       sizeof(ModestTnyStreamGtkhtml),
+                       1,              /* n_preallocs */
+                       (GInstanceInitFunc) modest_tny_stream_gtkhtml_init,
+               };
+
+               static const GInterfaceInfo iface_info = {
+                       (GInterfaceInitFunc) modest_tny_stream_gtkhml_iface_init,
+                       NULL,         /* interface_finalize */
+                       NULL          /* interface_data */
+                };
+
+               my_type = g_type_register_static (G_TYPE_OBJECT,
+                                                 "ModestTnyStreamGtkhtml",
+                                                 &my_info, 0);
+
+               g_type_add_interface_static (my_type, TNY_TYPE_STREAM_IFACE,
+                                            &iface_info);
+
+       }
+       return my_type;
+}
+
+static void
+modest_tny_stream_gtkhtml_class_init (ModestTnyStreamGtkhtmlClass *klass)
+{
+       GObjectClass *gobject_class;
+       gobject_class = (GObjectClass*) klass;
+
+       parent_class            = g_type_class_peek_parent (klass);
+       gobject_class->finalize = modest_tny_stream_gtkhtml_finalize;
+
+       g_type_class_add_private (gobject_class, sizeof(ModestTnyStreamGtkhtmlPrivate));
+}
+
+static void
+modest_tny_stream_gtkhtml_init (ModestTnyStreamGtkhtml *obj)
+{
+       ModestTnyStreamGtkhtmlPrivate *priv;
+       priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(obj);
+       
+       priv->gtkhtml = NULL;
+       priv->stream  = NULL;
+}
+
+static void
+modest_tny_stream_gtkhtml_finalize (GObject *obj)
+{
+       ModestTnyStreamGtkhtmlPrivate *priv;
+
+       priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(obj);
+       priv->gtkhtml = NULL;
+       priv->stream = NULL;
+}
+
+GObject*
+modest_tny_stream_gtkhtml_new (GtkHTML *gtkhtml)
+{
+       GObject *obj;
+       ModestTnyStreamGtkhtmlPrivate *priv;
+
+       g_return_val_if_fail (gtkhtml, NULL);
+       
+       obj  = G_OBJECT(g_object_new(MODEST_TYPE_TNY_STREAM_GTKHTML, NULL));
+       priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(obj);
+
+       priv->gtkhtml = gtkhtml;
+       return obj;
+}
+
+
+/* the rest are interface functions */
+
+
+static ssize_t
+gtkhtml_read (TnyStreamIface *self, char *buffer, size_t n)
+{
+       g_warning (__FUNCTION__);
+       return -1; /* we cannot read */
+}
+
+
+static ssize_t
+gtkhtml_write (TnyStreamIface *self, const char *buffer, size_t n)
+{
+       ModestTnyStreamGtkhtmlPrivate *priv;
+       
+       g_return_val_if_fail (self, 0);
+
+       priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(self);
+       if (!priv->stream) 
+               priv->stream = gtk_html_begin (GTK_HTML(priv->gtkhtml));
+               
+       gtk_html_stream_write (priv->stream, buffer, n);
+       
+       return n; /* hmmm */
+}
+
+       
+static gint
+gtkhtml_flush (TnyStreamIface *self)
+{
+       ModestTnyStreamGtkhtmlPrivate *priv;
+       g_return_val_if_fail (self, 0);
+       priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(self);
+       
+       gtk_html_flush (GTK_HTML(priv->gtkhtml));
+       return 0;
+}
+       
+
+static gint
+gtkhtml_close (TnyStreamIface *self)
+{
+       ModestTnyStreamGtkhtmlPrivate *priv;
+       g_return_val_if_fail (self, 0);
+       priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(self);
+       
+       gtk_html_stream_close   (priv->stream, GTK_HTML_STREAM_OK);
+       priv->stream = NULL;
+
+       return 0;
+}
+
+
+static gboolean
+gtkhtml_eos (TnyStreamIface *self)
+{
+       g_warning (__FUNCTION__);
+       return TRUE;
+}
+
+
+       
+static gint
+gtkhtml_reset (TnyStreamIface *self)
+{
+       ModestTnyStreamGtkhtmlPrivate *priv;
+       g_return_val_if_fail (self, 0);
+       priv = MODEST_TNY_STREAM_GTKHTML_GET_PRIVATE(self);
+       
+       if (priv->stream) {
+               gtk_html_end (priv->gtkhtml, priv->stream, GTK_HTML_STREAM_OK);
+               priv->stream   = NULL;
+       }
+
+       return 0;
+}
+
+       
+static ssize_t
+gtkhtml_write_to_stream (TnyStreamIface *self, TnyStreamIface *output)
+{
+       g_warning (__FUNCTION__);
+       return 0;
+}
+
+
+static void
+modest_tny_stream_gtkhml_iface_init (gpointer g_iface, gpointer iface_data)
+{
+        TnyStreamIfaceClass *klass;
+       
+       g_return_if_fail (g_iface);
+
+       klass = (TnyStreamIfaceClass *)g_iface;
+       
+        klass->read_func  = gtkhtml_read;
+        klass->write_func = gtkhtml_write;
+        klass->flush_func = gtkhtml_flush;
+        klass->close_func = gtkhtml_close;
+       klass->eos_func   = gtkhtml_eos;
+       klass->reset_func = gtkhtml_reset;
+       klass->write_to_stream_func = gtkhtml_write_to_stream;
+}

diff --git a/src/modest-tny-stream-gtkhtml.h b/src/modest-tny-stream-gtkhtml.h
new file mode 100644 (file)
index 0000000..02241ff
--- /dev/null
+++ b/src/modest-tny-stream-gtkhtml.h
@@ -0,0 +1,43 @@
+/* modest-tny-stream-gtkhtml.h */
+/* insert (c)/licensing information) */
+
+#ifndef __MODEST_TNY_STREAM_GTKHTML_H__
+#define __MODEST_TNY_STREAM_GTKHTML_H__
+
+#include <glib-object.h>
+#include <gtkhtml/gtkhtml.h>
+#include <tny-stream-iface.h>
+
+G_BEGIN_DECLS
+
+/* convenience macros */
+#define MODEST_TYPE_TNY_STREAM_GTKHTML             (modest_tny_stream_gtkhtml_get_type())
+#define MODEST_TNY_STREAM_GTKHTML(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj),MODEST_TYPE_TNY_STREAM_GTKHTML,ModestTnyStreamGtkhtml))
+#define MODEST_TNY_STREAM_GTKHTML_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass),MODEST_TYPE_TNY_STREAM_GTKHTML,GObject))
+#define MODEST_IS_TNY_STREAM_GTKHTML(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj),MODEST_TYPE_TNY_STREAM_GTKHTML))
+#define MODEST_IS_TNY_STREAM_GTKHTML_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass),MODEST_TYPE_TNY_STREAM_GTKHTML))
+#define MODEST_TNY_STREAM_GTKHTML_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS((obj),MODEST_TYPE_TNY_STREAM_GTKHTML,ModestTnyStreamGtkhtmlClass))
+
+typedef struct _ModestTnyStreamGtkhtml      ModestTnyStreamGtkhtml;
+typedef struct _ModestTnyStreamGtkhtmlClass ModestTnyStreamGtkhtmlClass;
+
+struct _ModestTnyStreamGtkhtml {
+       GObject parent;
+};
+
+struct _ModestTnyStreamGtkhtmlClass {
+       GObjectClass parent_class;
+       /* insert signal callback declarations, eg. */
+       /* void (* my_event) (ModestTnyStreamGtkhtml* obj); */
+};
+
+/* member functions */
+GType        modest_tny_stream_gtkhtml_get_type    (void) G_GNUC_CONST;
+
+GObject*    modest_tny_stream_gtkhtml_new         (GtkHTML* gtkhtml);
+
+
+G_END_DECLS
+
+#endif /* __MODEST_TNY_STREAM_GTKHTML_H__ */
+