From 6c4d94942f5f835de134259f5bf4ffcde9086bc6 Mon Sep 17 00:00:00 2001
From: Christian Dywan <christian@twotoasts.de>
Date: Fri, 21 May 2010 01:17:43 +0200
Subject: [PATCH] Render stock:// as pixbufs and pass as data URIs

Stock icons do not match filenames in many icon themes and the
appropriate sizes may not be available. Thus we now always
render the icon through the theme engine and encode it as a
data URI with BASE64/ PNG.

As a side effect, we use stock sizes now instead of pixel sizes,
where 1 means menu size, 4 means button size and 6 dialog size;
the value 16 is translated to 4 to keep existing files working.
---
 data/speeddial-head.html |  4 ++--
 midori/midori-view.c     | 43 ++++++++++++++++++++++++++++------------
 2 files changed, 32 insertions(+), 15 deletions(-)

diff --git a/data/speeddial-head.html b/data/speeddial-head.html
index 2e015076..6d5814fd 100644
--- a/data/speeddial-head.html
+++ b/data/speeddial-head.html
@@ -119,7 +119,7 @@
         margin-bottom: -17px;
         margin-left: 180px;
         margin-top: 2px;
-        background: url({stock}/16/gtk-close) 98% 70% no-repeat;
+        background: url({stock}/1/gtk-close) 98% 70% no-repeat;
         cursor: pointer;
         z-index: -4;
         opacity: 0.6;
@@ -131,7 +131,7 @@
 
     .activated p {
         cursor: text;
-        background: url({stock}/16/gtk-edit) 98% 70% no-repeat;
+        background: url({stock}/1/gtk-edit) 98% 70% no-repeat;
         opacity: 0.6;
         color: rgba(0,0,0,1);
     }
diff --git a/midori/midori-view.c b/midori/midori-view.c
index 89f068c0..cc183b2c 100644
--- a/midori/midori-view.c
+++ b/midori/midori-view.c
@@ -1117,13 +1117,13 @@ midori_view_web_view_resource_request_cb (WebKitWebView*         web_view,
     }
     else if (g_str_has_prefix (uri, "stock://"))
     {
-        GtkIconTheme* icon_theme = gtk_icon_theme_get_default ();
+        GdkPixbuf* pixbuf;
         const gchar* icon_name = &uri[8] ? &uri[8] : "";
-        gint icon_size = 22;
-        GtkIconInfo* info;
+        gint icon_size = GTK_ICON_SIZE_MENU;
 
         if (g_ascii_isalpha (icon_name[0]))
-            icon_size = strstr (icon_name, "dialog") ? 48 : 22;
+            icon_size = strstr (icon_name, "dialog") ?
+                GTK_ICON_SIZE_DIALOG : GTK_ICON_SIZE_BUTTON;
         else if (g_ascii_isdigit (icon_name[0]))
         {
             guint i = 0;
@@ -1132,21 +1132,38 @@ midori_view_web_view_resource_request_cb (WebKitWebView*         web_view,
                 {
                     gchar* size = g_strndup (icon_name, i - 1);
                     icon_size = atoi (size);
+                    /* Compatibility: map pixel to symbolic size */
+                    if (icon_size == 16)
+                        icon_size = GTK_ICON_SIZE_MENU;
                     g_free (size);
                     icon_name = &icon_name[i];
                 }
         }
 
-        if ((info = gtk_icon_theme_lookup_icon (icon_theme, icon_name, icon_size, 0)))
+        pixbuf = gtk_widget_render_icon (GTK_WIDGET (view), icon_name, icon_size, NULL);
+        if (!pixbuf)
+            pixbuf = gtk_widget_render_icon (GTK_WIDGET (view),
+                GTK_STOCK_MISSING_IMAGE, icon_size, NULL);
+        if (pixbuf)
         {
-            const gchar* filename = gtk_icon_info_get_filename (info);
-            if (filename)
-            {
-                gchar* file_uri = g_filename_to_uri (filename, NULL, NULL);
-                webkit_network_request_set_uri (request, file_uri);
-                g_free (file_uri);
-            }
-            gtk_icon_info_free (info);
+            gboolean success;
+            gchar* buffer;
+            gsize buffer_size;
+            gchar* encoded;
+            gchar* data_uri;
+
+            success = gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &buffer_size, "png", NULL, NULL);
+            g_object_unref (pixbuf);
+            if (!success)
+                return;
+
+            encoded = g_base64_encode ((guchar*)buffer, buffer_size);
+            g_free (buffer);
+            data_uri = g_strconcat ("data:image/png;base64,", encoded, NULL);
+            g_free (encoded);
+            webkit_network_request_set_uri (request, data_uri);
+            g_free (data_uri);
+            return;
         }
     }
 }