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[epiphany] ephy-about-handler: add a about:incognito handler

commit 4e23859050fd1410820312c16a21b3716d9f08e9
Author: Claudio Saavedra <csaavedra igalia com>
Date:   Tue Feb 19 20:26:21 2013 +0200

    ephy-about-handler: add a about:incognito handler
    
    This shows a welcome message for incognito windows.
    Artwork by Jakub Steiner.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694200

 data/Makefile.am           |    3 ++-
 data/incognito.png         |  Bin 0 -> 8445 bytes
 data/pages/about.css       |   26 ++++++++++++++++++++++++++
 embed/ephy-about-handler.c |   42 ++++++++++++++++++++++++++++++++++++++++++
 embed/ephy-embed-utils.c   |    1 +
 5 files changed, 71 insertions(+), 1 deletions(-)
---
diff --git a/data/Makefile.am b/data/Makefile.am
index a95a380..6449caa 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -53,7 +53,8 @@ $(default_bookmarks_DATA): $(default_bookmarks_in_files) Makefile $(INTLTOOL_MER
 iconsdir = $(pkgdatadir)/icons
 dist_icons_DATA =         \
     missing-thumbnail.png \
-    thumbnail-frame.png
+    thumbnail-frame.png   \
+    incognito.png
 
 EXTRA_DIST = \
        $(aboutdialog_DATA)             \
diff --git a/data/incognito.png b/data/incognito.png
new file mode 100644
index 0000000..8aa2929
Binary files /dev/null and b/data/incognito.png differ
diff --git a/data/pages/about.css b/data/pages/about.css
index 6e563d6..7f349d9 100644
--- a/data/pages/about.css
+++ b/data/pages/about.css
@@ -133,3 +133,29 @@ body {
 .applications-body .appname { font-weight: bold; }
 .applications-body .appurl, td.date { color: #babdb6; }
 .applications-body input { width: 100%; padding: 8px; }
+
+/* about:incognito */
+
+.incognito-body {
+  margin: 0;
+  padding: 0;
+}
+
+.incognito-body div#mainblock {
+  display: table;
+  max-width: 40em;
+  margin-left: auto;
+  margin-right: auto;
+  height: 75%;
+}
+
+.incognito-body div#mainblock>div {
+  margin: 0 10px;
+  display: table-cell;
+  vertical-align: middle;
+  padding: 0 20px 0 160px;
+}
+
+.incognito-body h1 {
+  color: #888a85;
+}
diff --git a/embed/ephy-about-handler.c b/embed/ephy-about-handler.c
index e9328a1..9955d36 100644
--- a/embed/ephy-about-handler.c
+++ b/embed/ephy-about-handler.c
@@ -21,6 +21,7 @@
 #include "config.h"
 #include "ephy-about-handler.h"
 
+#include "ephy-embed-shell.h"
 #include "ephy-file-helpers.h"
 #include "ephy-smaps.h"
 #include "ephy-web-app-utils.h"
@@ -239,6 +240,43 @@ ephy_about_handler_handle_applications (GString *data_str)
   ephy_web_application_free_application_list (applications);
 }
 
+static void
+ephy_about_handler_handle_incognito (GString *data_str)
+{
+  const char *filename;
+  char *img_data = NULL, *img_data_base64 = NULL;
+  gsize data_length;
+
+  filename = ephy_file ("incognito.png");
+  if (filename) {
+    g_file_get_contents (filename, &img_data, &data_length, NULL);
+    img_data_base64 = g_base64_encode ((guchar*)img_data, data_length);
+  }
+  g_string_append_printf (data_str,                                    \
+                          "<head>\n"                                   \
+                          "<title>%s</title>\n"                        \
+                          "<style type=\"text/css\">%s</style>\n"      \
+                          "</head>\n"                                  \
+                          "<body class=\"incognito-body\">\n"          \
+                          "  <div id=\"mainblock\">\n"                 \
+                          "    <div style=\"background: transparent url(data:image/png;base64,%s) no-repeat 
10px center;\">\n" \
+                          "      <h1>%s</h1>\n"                        \
+                          "      <p>%s</p>\n"                          \
+                          "    </div>\n"                               \
+                          "  </div>\n"                                 \
+                          "</body>\n",
+                          _("Private Browsing"),
+                          css_style, img_data_base64 ? img_data_base64 : "",
+                          _("Private Browsing"),
+                          _("You are currently browsing <em>incognito</em>. Pages viewed in this "
+                            "mode will not show up in your browsing history and all stored "
+                            "information will be cleared when you close the window."));
+
+  g_free (img_data_base64);
+  g_free (img_data);
+
+}
+
 GString *
 ephy_about_handler_handle (const char *about)
 {
@@ -254,6 +292,10 @@ ephy_about_handler_handle (const char *about)
     ephy_about_handler_handle_epiphany (data_str);
   else if (!g_strcmp0 (about, "applications"))
     ephy_about_handler_handle_applications (data_str);
+  else if (!g_strcmp0 (about, "incognito") &&
+           ephy_embed_shell_get_mode (ephy_embed_shell_get_default ())
+           == EPHY_EMBED_SHELL_MODE_INCOGNITO)
+    ephy_about_handler_handle_incognito (data_str);
 
   g_string_append (data_str, "</html>");
 
diff --git a/embed/ephy-embed-utils.c b/embed/ephy-embed-utils.c
index 626c1bd..80a28bc 100644
--- a/embed/ephy-embed-utils.c
+++ b/embed/ephy-embed-utils.c
@@ -167,6 +167,7 @@ ephy_embed_utils_url_is_empty (const char *location)
  * window's location entry. */
 static const char * do_not_show_address[] = {
   "about:blank",
+  "ephy-about:incognito",
   "ephy-about:overview",
   NULL
 };
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