"show graph" action: Add page showing one instance of a graph.

diff --git a/src/Makefile.am b/src/Makefile.am
index a77f669..ea4e837 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 \
                          common.c common.h \
                          filesystem.c filesystem.h \
                          graph_types.h \

diff --git a/src/action_list_graphs.c b/src/action_list_graphs.c
index 922308b..7c8768a 100644 (file)
--- a/src/action_list_graphs.c
+++ b/src/action_list_graphs.c
@@ -54,7 +54,7 @@ static int print_graph_inst_html (graph_config_t *cfg, /* {{{ */
   inst_describe (cfg, inst, desc, sizeof (desc));
   html_escape_buffer (desc, sizeof (desc));
 
-  printf ("    <li class=\"instance\"><a href=\"%s?action=graph;%s\">%s</a></li>\n",
+  printf ("    <li class=\"instance\"><a href=\"%s?action=show_graph;%s\">%s</a></li>\n",
       script_name (), params, desc);
 
   if (data->limit > 0)

diff --git a/src/action_show_graph.c b/src/action_show_graph.c
new file mode 100644 (file)
index 0000000..40ebcd3
--- /dev/null
+++ b/src/action_show_graph.c
@@ -0,0 +1,142 @@
+#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_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)
+
+struct show_graph_data_s
+{
+  graph_config_t *cfg;
+  graph_instance_t *inst;
+};
+typedef struct show_graph_data_s show_graph_data_t;
+
+static int show_instance_list_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));
+
+  if (inst == data->inst)
+  {
+    printf ("    <li class=\"instance\"><strong>%s</strong></li>\n", descr);
+    return (0);
+  }
+
+  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_graph;%s\">%s</a></li>\n",
+      script_name (), params, descr);
+
+  return (0);
+} /* }}} int show_instance_list_cb */
+
+static int show_instance_list (void *user_data) /* {{{ */
+{
+  show_graph_data_t *data = user_data;
+  graph_instance_t *inst;
+  char title[128];
+
+  memset (title, 0, sizeof (title));
+  graph_get_title (data->cfg, title, sizeof (title));
+  html_escape_buffer (title, sizeof (title));
+
+  printf ("<ul class=\"graph_list\">\n"
+      "  <li class=\"graph\">%s\n"
+      "  <ul class=\"instance_list\">\n", title);
+
+  inst = graph_get_instances (data->cfg);
+  inst_foreach (inst, show_instance_list_cb, user_data);
+
+  printf ("  </ul>\n"
+      "</ul>\n");
+
+  return (0);
+} /* }}} int show_instance_list */
+
+static int show_graph (void *user_data) /* {{{ */
+{
+  show_graph_data_t *data = user_data;
+  char title[128];
+  char descr[128];
+  char params[1024];
+
+  memset (title, 0, sizeof (title));
+  graph_get_title (data->cfg, title, sizeof (title));
+  html_escape_buffer (title, sizeof (title));
+
+  memset (descr, 0, sizeof (descr));
+  inst_describe (data->cfg, data->inst, descr, sizeof (descr));
+  html_escape_buffer (descr, sizeof (descr));
+
+  memset (params, 0, sizeof (params));
+  inst_get_params (data->cfg, data->inst, params, sizeof (params));
+  html_escape_buffer (params, sizeof (params));
+
+  printf ("<div class=\"graph-img\"><img src=\"%s?action=graph;%s\" "
+      "title=\"%s / %s\" /></div>\n",
+      script_name (), params, title, descr);
+
+  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 title[128];
+  char descr[128];
+  char html_title[128];
+
+  pg_data.cfg = gl_graph_get_selected ();
+  if (pg_data.cfg == NULL)
+    OUTPUT_ERROR ("gl_graph_get_selected () failed.\n");
+
+  pg_data.inst = inst_get_selected (pg_data.cfg);
+  if (pg_data.inst == NULL)
+    OUTPUT_ERROR ("inst_get_selected (%p) failed.\n", (void *) pg_data.cfg);
+
+  memset (title, 0, sizeof (title));
+  graph_get_title (pg_data.cfg, title, sizeof (title));
+
+  memset (descr, 0, sizeof (descr));
+  inst_describe (pg_data.cfg, pg_data.inst, descr, sizeof (descr));
+
+  snprintf (html_title, sizeof (html_title), "Graph \"%s / %s\"",
+      title, descr);
+  html_title[sizeof (html_title) - 1] = 0;
+
+  pg_callbacks.top_right = html_print_search_box;
+  pg_callbacks.middle_center = show_graph;
+  pg_callbacks.middle_left = show_instance_list;
+
+  html_print_page (html_title, &pg_callbacks, &pg_data);
+
+  return (0);
+} /* }}} int action_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..5b5e78a
--- /dev/null
+++ b/src/action_show_graph.h
@@ -0,0 +1,7 @@
+#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/main.c b/src/main.c
index 13add00..5fd34d1 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -16,6 +16,7 @@
 #include "action_graph.h"
 #include "action_list_graphs.h"
 #include "action_search_json.h"
+#include "action_show_graph.h"
 
 /* Include this last, so the macro magic of <fcgi_stdio.h> doesn't interfere
  * with our own header files. */
@@ -36,6 +37,7 @@ static const action_t actions[] =
   { "graph",       action_graph },
   { "list_graphs", action_list_graphs },
   { "search_json", action_search_json },
+  { "show_graph",  action_show_graph },
   { "usage",       action_usage }
 };
 static const size_t actions_num = sizeof (actions) / sizeof (actions[0]);