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[epiphany] Implement about:applications

commit 0c1f1ef6e14716bbfd2b64c057ab043e809b4364
Author: Xan Lopez <xlopez igalia com>
Date:   Mon Sep 5 20:35:14 2011 +0200

    Implement about:applications
    
    A really simple way to list and delete the existing Web
    Applications. Hopefully this will go completely away in 3.4 replaced
    with something in the shell itself.

 embed/ephy-request-about.c |   39 ++++++++++++++++++++++++---
 embed/ephy-web-app-utils.c |   63 ++++++++++++++++++++++++++++++++++++++++++++
 embed/ephy-web-app-utils.h |    9 ++++++
 embed/ephy-web-view.c      |   40 ++++++++++++++++++++++++++++
 4 files changed, 147 insertions(+), 4 deletions(-)
---
diff --git a/embed/ephy-request-about.c b/embed/ephy-request-about.c
index 4601e47..1203d1a 100644
--- a/embed/ephy-request-about.c
+++ b/embed/ephy-request-about.c
@@ -21,16 +21,17 @@
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
+#include "ephy-request-about.h"
+
+#include "ephy-file-helpers.h"
+#include "ephy-smaps.h"
+#include "ephy-web-app-utils.h"
 
 #include <gio/gio.h>
 #include <glib/gi18n.h>
 #include <libsoup/soup-uri.h>
 #include <webkit/webkit.h>
 
-#include "ephy-file-helpers.h"
-#include "ephy-request-about.h"
-#include "ephy-smaps.h"
-
 G_DEFINE_TYPE (EphyRequestAbout, ephy_request_about, SOUP_TYPE_REQUEST)
 
 struct _EphyRequestAboutPrivate {
@@ -160,6 +161,36 @@ ephy_request_about_send (SoupRequest          *request,
                      "<!-- Terre des Hommes, III: L'Avion, p. 60 -->" \
                      "Antoine de Saint-ExupÃry" \
                      "</div></body>");
+  } else if (!g_strcmp0 (uri->path, "applications")) {
+    GList *applications, *p;
+
+    g_string_append_printf (data_str, "<head><title>%s</title>"   \
+                            "<style type=\"text/css\">%s</style></head>" \
+                            "<body>",
+                            _("Web Applications"),
+                            about->priv->css_style);
+
+    g_string_append_printf (data_str, "<form><table><thead><tr><th>%s</th><th>%s</th><th>%s</th></tr></thead>",
+                            _("Icon"), _("Name"), _("Delete?"));
+
+    applications = ephy_web_application_get_application_list ();
+    for (p = applications; p; p = p->next) {
+      char *img_data = NULL, *img_data_base64 = NULL;
+      gsize data_length;
+      EphyWebApplication *app = (EphyWebApplication*)p->data;
+      
+      if (g_file_get_contents (app->icon_url, &img_data, &data_length, NULL))
+        img_data_base64 = g_base64_encode ((guchar*)img_data, data_length);
+      g_string_append_printf (data_str, "<tbody><tr><td><img width=64 height=64 src=\"data:image/png;base64,%s\">" \
+                              " </img></td><td>%s</td><td><input type=\"submit\" value=\"Delete\" id=\"%s\"></td></tr>",
+                              img_data_base64, app->name, app->name);
+      g_free (img_data_base64);
+      g_free (img_data);
+    }
+
+    g_string_append (data_str, "</form></table></body>");
+    
+    ephy_web_application_free_application_list (applications);
   }
 
   g_string_append (data_str, "</html>");
diff --git a/embed/ephy-web-app-utils.c b/embed/ephy-web-app-utils.c
index f2da66a..293ec63 100644
--- a/embed/ephy-web-app-utils.c
+++ b/embed/ephy-web-app-utils.c
@@ -278,3 +278,66 @@ out:
   return desktop_file_path;
 }
 
+GList *
+ephy_web_application_get_application_list ()
+{
+  GFileEnumerator *children = NULL;
+  GFileInfo *info;
+  GList *applications = NULL;
+  GFile *dot_dir;
+
+  dot_dir = g_file_new_for_path (ephy_dot_dir ());
+  children = g_file_enumerate_children (dot_dir,
+                                        "standard::name",
+                                        0, NULL, NULL);
+  g_object_unref (dot_dir);
+
+  info = g_file_enumerator_next_file (children, NULL, NULL);
+  while (info) {
+    EphyWebApplication *app;
+    const char *name;
+    glong prefix_length = g_utf8_strlen (EPHY_WEB_APP_PREFIX, -1);
+
+    name = g_file_info_get_name (info);
+    if (g_str_has_prefix (name, EPHY_WEB_APP_PREFIX)) {
+      char *profile_dir;
+
+      app = g_slice_new0 (EphyWebApplication);
+      app->name = g_strdup (name + prefix_length);
+
+      profile_dir = ephy_web_application_get_profile_directory (app->name);
+      app->icon_url = g_build_filename (profile_dir, "app-icon.png", NULL);
+      g_free (profile_dir);
+
+      applications = g_list_append (applications, app);
+
+    }
+
+    g_object_unref (info);
+
+    info = g_file_enumerator_next_file (children, NULL, NULL);
+  }
+
+  g_object_unref (children);
+
+  return applications;
+}
+
+static void
+ephy_web_application_free (EphyWebApplication *app)
+{
+  g_free (app->name);
+  g_free (app->icon_url);
+  g_slice_free (EphyWebApplication, app);
+}
+
+void
+ephy_web_application_free_application_list (GList *list)
+{
+  GList *p;
+
+  for (p = list; p; p = p->next)
+    ephy_web_application_free ((EphyWebApplication*)p->data);
+
+  g_list_free (list);
+}
diff --git a/embed/ephy-web-app-utils.h b/embed/ephy-web-app-utils.h
index d6f7be5..06b3284 100644
--- a/embed/ephy-web-app-utils.h
+++ b/embed/ephy-web-app-utils.h
@@ -31,6 +31,11 @@
 
 G_BEGIN_DECLS
 
+typedef struct {
+    char *name;
+    char *icon_url;
+} EphyWebApplication;
+
 #define EPHY_WEB_APP_PREFIX "app-"
 
 char    *ephy_web_application_create (EphyWebView *view, const char *title, GdkPixbuf *icon);
@@ -39,6 +44,10 @@ gboolean ephy_web_application_delete (const char *name);
 
 char    *ephy_web_application_get_profile_directory (const char *app_name);
 
+GList   *ephy_web_application_get_application_list (void);
+
+void     ephy_web_application_free_application_list (GList *list);
+
 G_END_DECLS
 
 #endif
diff --git a/embed/ephy-web-view.c b/embed/ephy-web-view.c
index 798946c..80f3368 100644
--- a/embed/ephy-web-view.c
+++ b/embed/ephy-web-view.c
@@ -48,6 +48,7 @@
 #include "ephy-request-about.h"
 #include "ephy-settings.h"
 #include "ephy-string.h"
+#include "ephy-web-app-utils.h"
 #include "ephy-web-view.h"
 #include "ephy-zoom.h"
 
@@ -1787,6 +1788,22 @@ update_navigation_flags (EphyWebView *view)
   }
 }
 
+static gboolean
+delete_web_app_cb (WebKitDOMHTMLElement *button,
+                   WebKitDOMEvent *dom_event,
+                   EphyWebView *web_view)
+{
+  char *id = NULL;
+
+  id = webkit_dom_html_element_get_id (button);
+  if (id)
+    ephy_web_application_delete (id);
+
+  g_free (id);
+
+  return FALSE;
+}
+
 static void
 load_status_cb (WebKitWebView *web_view,
                 GParamSpec *pspec,
@@ -1885,6 +1902,29 @@ load_status_cb (WebKitWebView *web_view,
       _ephy_web_view_hook_into_forms (view);
 
     _ephy_web_view_hook_into_links (view);
+
+    /* FIXME: It sucks to do this here, but it's not really possible
+     * to hook the DOM actions nicely in the about: generator. */
+    if (g_str_equal (webkit_web_view_get_uri (web_view), "ephy-about:applications")) {
+      WebKitDOMDocument *document;
+      WebKitDOMNodeList *buttons;
+      gulong buttons_n;
+      int i;
+
+      document = webkit_web_view_get_dom_document (web_view);
+      buttons = webkit_dom_document_get_elements_by_tag_name (document, "input");
+      buttons_n = webkit_dom_node_list_get_length (buttons);
+
+      for (i = 0; i < buttons_n; i++) {
+        WebKitDOMNode *button;
+        
+        button = webkit_dom_node_list_item (buttons, i);
+        webkit_dom_event_target_add_event_listener (WEBKIT_DOM_EVENT_TARGET (button), "click",
+                                                    G_CALLBACK (delete_web_app_cb), false,
+                                                    NULL);
+      }
+    }
+
     break;
   case WEBKIT_LOAD_FAILED:
     ephy_web_view_set_link_message (view, NULL);
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