"show graph" action: Implement a page showing all instances of a graph.

diff --git a/src/Makefile.am b/src/Makefile.am
index 0f86311..d513262 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -18,6 +18,7 @@ collection_fcgi_SOURCES = main.c \
                          action_graph.c action_graph.h \
                          action_list_graphs.c action_list_graphs.h \
                          action_search_json.c action_search_json.h \
+                         action_show_graph.c action_show_graph.h \
                          action_show_instance.c action_show_instance.h \
                          common.c common.h \
                          filesystem.c filesystem.h \

diff --git a/src/action_show_graph.c b/src/action_show_graph.c
new file mode 100644 (file)
index 0000000..5304a25
--- /dev/null
+++ b/src/action_show_graph.c
@@ -0,0 +1,147 @@
+/**
+ * collection4 - action_show_graph.c
+ * Copyright (C) 2010  Florian octo Forster
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301  USA
+ *
+ * Authors:
+ *   Florian octo Forster <ff at octo.it>
+ **/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include "action_show_graph.h"
+#include "common.h"
+#include "graph.h"
+#include "graph_ident.h"
+#include "graph_instance.h"
+#include "graph_list.h"
+#include "utils_cgi.h"
+
+#include <fcgiapp.h>
+#include <fcgi_stdio.h>
+
+#define OUTPUT_ERROR(...) do {             \
+  printf ("Content-Type: text/plain\n\n"); \
+  printf (__VA_ARGS__);                    \
+  return (0);                              \
+} while (0)
+
+#define MAX_SHOW_GRAPHS 10
+
+struct show_graph_data_s
+{
+  graph_config_t *cfg;
+};
+typedef struct show_graph_data_s show_graph_data_t;
+
+static int show_time_selector (__attribute__((unused)) void *user_data) /* {{{ */
+{
+  param_list_t *pl;
+
+  pl = param_create (/* query string = */ NULL);
+  param_set (pl, "begin", NULL);
+  param_set (pl, "end", NULL);
+  param_set (pl, "button", NULL);
+
+  printf ("<form action=\"%s\" method=\"get\">\n", script_name ());
+
+  param_print_hidden (pl);
+
+  printf ("  <select name=\"begin\">\n"
+      "    <option value=\"-3600\">Hour</option>\n"
+      "    <option value=\"-86400\">Day</option>\n"
+      "    <option value=\"-604800\">Week</option>\n"
+      "    <option value=\"-2678400\">Month</option>\n"
+      "    <option value=\"-31622400\">Year</option>\n"
+      "  </select>\n"
+      "  <input type=\"submit\" name=\"button\" value=\"Go\" />\n");
+
+  printf ("</form>\n");
+
+  param_destroy (pl);
+
+  return (0);
+} /* }}} int show_time_selector */
+
+static int show_instance_cb (graph_instance_t *inst, /* {{{ */
+    void *user_data)
+{
+  show_graph_data_t *data = user_data;
+  char descr[128];
+  char params[1024];
+
+  memset (descr, 0, sizeof (descr));
+  inst_describe (data->cfg, inst, descr, sizeof (descr));
+  html_escape_buffer (descr, sizeof (descr));
+
+  memset (params, 0, sizeof (params));
+  inst_get_params (data->cfg, inst, params, sizeof (params));
+  html_escape_buffer (params, sizeof (params));
+
+  printf ("  <li class=\"instance\"><a href=\"%s?action=show_instance;%s\">"
+      "%s</a></li>\n",
+      script_name (), params, descr);
+
+  return (0);
+} /* }}} int show_instance_cb */
+
+static int show_graph (void *user_data) /* {{{ */
+{
+  show_graph_data_t *data = user_data;
+
+  printf ("<h2>Available instances</h2>\n");
+  printf ("<ul class=\"instance_list\">\n");
+  graph_inst_foreach (data->cfg, show_instance_cb, data);
+  printf ("</ul>\n");
+
+  return (0);
+} /* }}} int show_graph */
+
+int action_show_graph (void) /* {{{ */
+{
+  page_callbacks_t pg_callbacks = PAGE_CALLBACKS_INIT;
+  show_graph_data_t pg_data;
+
+  char tmp[128];
+  char title[128];
+
+  memset (&pg_data, 0, sizeof (pg_data));
+  pg_data.cfg = gl_graph_get_selected ();
+  if (pg_data.cfg == NULL)
+    OUTPUT_ERROR ("gl_graph_get_selected () failed.\n");
+
+  memset (tmp, 0, sizeof (tmp));
+  graph_get_title (pg_data.cfg, tmp, sizeof (tmp));
+  snprintf (title, sizeof (title), "Graph \"%s\"", tmp);
+  title[sizeof (title) - 1] = 0;
+
+  pg_callbacks.top_right = html_print_search_box;
+  pg_callbacks.middle_center = show_graph;
+  pg_callbacks.middle_right = show_time_selector;
+
+  html_print_page (title, &pg_callbacks, &pg_data);
+
+  return (0);
+} /* }}} int action_show_graph */
+
+/* vim: set sw=2 sts=2 et fdm=marker : */

diff --git a/src/action_show_graph.h b/src/action_show_graph.h
new file mode 100644 (file)
index 0000000..9e3690d
--- /dev/null
+++ b/src/action_show_graph.h
@@ -0,0 +1,30 @@
+/**
+ * collection4 - action_show_graph.h
+ * Copyright (C) 2010  Florian octo Forster
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301  USA
+ *
+ * Authors:
+ *   Florian octo Forster <ff at octo.it>
+ **/
+
+#ifndef ACTION_SHOW_GRAPH_H
+#define ACTION_SHOW_GRAPH_H 1
+
+int action_show_graph (void);
+
+#endif /* ACTION_SHOW_GRAPH_H */
+/* vim: set sw=2 sts=2 et fdm=marker : */

diff --git a/src/action_show_instance.h b/src/action_show_instance.h
index f872c60..b6ea34e 100644 (file)
--- a/src/action_show_instance.h
+++ b/src/action_show_instance.h
@@ -21,10 +21,10 @@
  *   Florian octo Forster <ff at octo.it>
  **/
 
-#ifndef ACTION_SHOW_GRAPH_H
-#define ACTION_SHOW_GRAPH_H 1
+#ifndef ACTION_SHOW_INSTANCE_H
+#define ACTION_SHOW_INSTANCE_H 1
 
 int action_show_instance (void);
 
-#endif /* ACTION_SHOW_GRAPH_H */
+#endif /* ACTION_SHOW_INSTANCE_H */
 /* vim: set sw=2 sts=2 et fdm=marker : */

diff --git a/src/main.c b/src/main.c
index de252eb..5dc5264 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -39,6 +39,7 @@
 #include "action_graph.h"
 #include "action_list_graphs.h"
 #include "action_search_json.h"
+#include "action_show_graph.h"
 #include "action_show_instance.h"
 
 /* Include this last, so the macro magic of <fcgi_stdio.h> doesn't interfere
@@ -60,6 +61,7 @@ static const action_t actions[] =
   { "graph",       action_graph },
   { "list_graphs", action_list_graphs },
   { "search_json", action_search_json },
+  { "show_graph",  action_show_graph },
   { "show_instance", action_show_instance },
   { "usage",       action_usage }
 };