[yelp] Link to full text search when terms is in URI query string

[Shaun McCance <shaunm src gnome org>]

commit 1df7292299d68b71f467d3900803a6a5bf5b1e14
Author: Shaun McCance <shaunm gnome org>
Date:   Fri Oct 21 17:35:14 2011 -0400

    Link to full text search when terms is in URI query string

 data/xslt/mal2html.xsl.in |    5 +++++
 libyelp/yelp-uri.c        |   41 +++++++++++++++++++++++++++++++++++++++++
 libyelp/yelp-uri.h        |    2 ++
 libyelp/yelp-view.c       |   39 ++++++++++++++++++++++++++++++++++++---
 4 files changed, 84 insertions(+), 3 deletions(-)
---
diff --git a/data/xslt/mal2html.xsl.in b/data/xslt/mal2html.xsl.in
index 8b9238c..928ded8 100644
--- a/data/xslt/mal2html.xsl.in
+++ b/data/xslt/mal2html.xsl.in
@@ -55,6 +55,11 @@ a.linkdiv:hover {
     <xsl:value-of select="$color.blue_background"/><xsl:text>), to(</xsl:text>
     <xsl:value-of select="$color.background"/><xsl:text>));
 }
+div.fullsearch {
+  text-align: center;
+  max-width: 20em;
+  margin: 0 auto 1em auto;
+}
 </xsl:text>
 <xsl:if test="$yelp.editor_mode">
 <xsl:text>
diff --git a/libyelp/yelp-uri.c b/libyelp/yelp-uri.c
index 63b550e..e21f893 100644
--- a/libyelp/yelp-uri.c
+++ b/libyelp/yelp-uri.c
@@ -83,6 +83,8 @@ struct _YelpUriPrivate {
     gchar                *page_id;
     gchar                *frag_id;
 
+    GHashTable           *query;
+
     /* Unresolved */
     YelpUri              *res_base;
     gchar                *res_arg;
@@ -144,6 +146,10 @@ yelp_uri_class_init (YelpUriClass *klass)
 static void
 yelp_uri_init (YelpUri *uri)
 {
+    YelpUriPrivate *priv = GET_PRIV (uri);
+
+    priv->query = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+
     return;
 }
 
@@ -162,6 +168,11 @@ yelp_uri_dispose (GObject *object)
         priv->res_base = NULL;
     }
 
+    if (priv->query) {
+        g_hash_table_destroy (priv->query);
+        priv->query = NULL;
+    }
+
     G_OBJECT_CLASS (yelp_uri_parent_class)->dispose (object);
 }
 
@@ -484,6 +495,18 @@ yelp_uri_get_frag_id (YelpUri *uri)
     return g_strdup (priv->frag_id);
 }
 
+gchar *
+yelp_uri_get_query (YelpUri      *uri,
+                    const gchar  *key)
+{
+    YelpUriPrivate *priv = GET_PRIV (uri);
+    const gchar *ret = g_hash_table_lookup (priv->query, key);
+    if (ret)
+        return g_strdup (ret);
+    else
+        return NULL;
+}
+
 /******************************************************************************/
 
 gchar *
@@ -827,6 +850,24 @@ resolve_help_uri (YelpUri *uri)
     else if (query)
         query = g_strdup (query + 1);
 
+    if (query) {
+        gchar **keyvals = g_strsplit (query, "&", 0);
+        gint i;
+
+        for (i = 0; keyvals[i]; i++) {
+            gchar *key, *val;
+            val = strchr (keyvals[i], '=');
+            if (val == NULL)
+                continue;
+            key = g_uri_unescape_segment (keyvals[i], val, NULL);
+            val = g_uri_unescape_string (val + 1, NULL);
+
+            g_hash_table_insert (priv->query, key, val);
+        }
+
+        g_strfreev (keyvals);
+    }
+
     if (hash)
         hash = g_strdup (hash + 1);
 
diff --git a/libyelp/yelp-uri.h b/libyelp/yelp-uri.h
index 5ebbd4a..7067ad4 100644
--- a/libyelp/yelp-uri.h
+++ b/libyelp/yelp-uri.h
@@ -85,6 +85,8 @@ GFile *              yelp_uri_get_file           (YelpUri      *uri);
 gchar **             yelp_uri_get_search_path    (YelpUri      *uri);
 gchar *              yelp_uri_get_page_id        (YelpUri      *uri);
 gchar *              yelp_uri_get_frag_id        (YelpUri      *uri);
+gchar *              yelp_uri_get_query          (YelpUri      *uri,
+                                                  const gchar  *key);
 
 gchar *              yelp_uri_locate_file_uri    (YelpUri      *uri,
                                                   const gchar  *filename);
diff --git a/libyelp/yelp-view.c b/libyelp/yelp-view.c
index 24af96b..2e5e0c6 100644
--- a/libyelp/yelp-view.c
+++ b/libyelp/yelp-view.c
@@ -2058,7 +2058,7 @@ document_callback (YelpDocument       *document,
     else if (signal == YELP_DOCUMENT_SIGNAL_CONTENTS) {
         YelpUriDocumentType doctype;
 	const gchar *contents;
-        gchar *mime_type, *page_id, *frag_id, *full_uri;
+        gchar *mime_type, *page_id, *frag_id, *full_uri, *search_terms;
         page_id = yelp_uri_get_page_id (priv->uri);
         debug_print (DB_ARG, "    document.uri.page_id=\"%s\"\n", page_id);
         mime_type = yelp_document_get_mime_type (document, page_id);
@@ -2112,17 +2112,20 @@ document_callback (YelpDocument       *document,
         g_signal_handler_unblock (view, priv->navigation_requested);
         g_object_set (view, "state", YELP_VIEW_STATE_LOADED, NULL);
 
+        search_terms = yelp_uri_get_query (priv->uri, "terms");
+
         /* If we need to set the GtkAdjustment or trigger the page title
          * from what WebKit thinks it is (see comment below), we need to
          * let the main loop run through.
          */
-        if (priv->vadjust > 0 || priv->hadjust > 0 || priv->page_title == NULL)
+        if (priv->vadjust > 0 || priv->hadjust > 0 ||
+            priv->page_title == NULL || search_terms != NULL)
             while (g_main_context_pending (NULL)) {
                 WebKitLoadStatus status;
                 status = webkit_web_view_get_load_status (WEBKIT_WEB_VIEW (view));
                 g_main_context_iteration (NULL, FALSE);
                 /* Sometimes some runaway JavaScript causes there to always
-                 * be pending sources. Break out of the document is loaded.
+                 * be pending sources. Break out if the document is loaded.
                  */
                 if (status == WEBKIT_LOAD_FINISHED ||
                     status == WEBKIT_LOAD_FAILED)
@@ -2158,6 +2161,36 @@ document_callback (YelpDocument       *document,
             g_signal_emit_by_name (view, "notify::page-title", spec);
         }
 
+        if (search_terms) {
+            WebKitDOMDocument *doc;
+            WebKitDOMElement *body, *div, *link;
+            doc = webkit_web_view_get_dom_document (WEBKIT_WEB_VIEW (view));
+            body = webkit_dom_document_query_selector (doc, "div.body", NULL);
+            if (body) {
+                gchar *tmp, *uri, *txt;
+                div = webkit_dom_document_create_element (doc, "div", NULL);
+                webkit_dom_element_set_attribute (div, "class", "fullsearch", NULL);
+                link = webkit_dom_document_create_element (doc, "a", NULL);
+                tmp = g_uri_escape_string (search_terms, NULL, FALSE);
+                uri = g_strconcat ("xref:search=", tmp, NULL);
+                webkit_dom_element_set_attribute (link, "href", uri, NULL);
+                g_free (tmp);
+                g_free (uri);
+                txt = g_strdup_printf (_("See all search results for â%sâ"),
+                                       search_terms);
+                webkit_dom_node_set_text_content (WEBKIT_DOM_NODE (link), txt, NULL);
+                g_free (txt);
+                webkit_dom_node_append_child (WEBKIT_DOM_NODE (div),
+                                              WEBKIT_DOM_NODE (link),
+                                              NULL);
+                webkit_dom_node_insert_before (WEBKIT_DOM_NODE (body),
+                                               WEBKIT_DOM_NODE (div),
+                                               webkit_dom_node_get_first_child (WEBKIT_DOM_NODE (body)),
+                                               NULL);
+            }
+            g_free (search_terms);
+        }
+
         g_free (frag_id);
         g_free (page_id);
         g_free (mime_type);