add autocompletion support to OSM Scout nearby search

guides/osmscout.py

@@ -22,7 +22,9 @@
 """
 
 import copy
+import functools
 import poor
+import unicodedata
 import urllib.parse
 
 URL_SEARCH = ("http://localhost:8553/v1/guide"
@@ -42,6 +44,26 @@
 
 cache = {}
 
+def autocomplete_type(query, params=None):
+    """Return a list of autocomplete dictionaries matching `query`."""
+    query = normalize(query)
+    results = []
+    for t in get_types():
+        pos = t["normalized"].find(query)
+        if pos < 0: continue
+        results.append({"label": t["original"]})
+        if len(results) > 100:
+            break
+    return results
+
+@functools.lru_cache(1)
+def get_types():
+    """Get list of types"""
+    types = []
+    for t in poor.http.get_json("http://localhost:8553/v1/poi_types"):
+        types.append( { "original": t, "normalized": normalize(t) } )
+    return types
+
 def nearby(query, near, radius, params):
     """Return X, Y and a list of dictionaries of places matching `query`."""
     query = urllib.parse.quote_plus(query)
@@ -71,6 +93,10 @@ def nearby(query, near, radius, params):
         cache[url] = copy.deepcopy((x, y, results))
     return x, y, results
 
+def normalize(t):
+    """Normalize the string"""
+    return unicodedata.normalize("NFKC", t).casefold()
+
 def parse_description(result):
     """Parse description from search result."""
     items = []

guides/osmscout_name.qml

@@ -116,7 +116,7 @@ Dialog {
     function filterHistory() {
         // Filter search history for current search field text.
         var query = listView.searchField.text;
-        var found = Util.findMatches(query, dialog.history, listView.model.count);
+        var found = Util.findMatches(query, dialog.history, [], listView.model.count);
         Util.injectMatches(listView.model, found, "name", "text");
         viewPlaceholder.enabled = found.length === 0;
     }