From 27e7df888d7bcaa67da6a589e79e26dc53a40887 Mon Sep 17 00:00:00 2001
From: Tom MacWright <tom@macwright.org>
Date: Thu, 7 Feb 2013 18:24:01 -0500
Subject: [PATCH] Support locales in taginfo. Fixes #678

---
 js/id/ui/inspector.js | 109 ++++++++++++++++++++++++++----------------
 1 file changed, 68 insertions(+), 41 deletions(-)

diff --git a/js/id/ui/inspector.js b/js/id/ui/inspector.js
index 35e03d231..fd29e08a5 100644
--- a/js/id/ui/inspector.js
+++ b/js/id/ui/inspector.js
@@ -119,6 +119,72 @@ iD.ui.inspector = function() {
         removeBtn.append('span')
             .attr('class', 'icon delete');
 
+        function findLocal(docs) {
+            var locale = iD.detect().locale.toLowerCase(),
+                localized;
+
+            localized = _.find(docs, function(d) {
+                return d.lang.toLowerCase() === locale;
+            });
+            if (localized) return localized;
+
+            // try the non-regional version of a language, like
+            // 'en' if the language is 'en-US'
+            if (locale.indexOf('-') !== -1) {
+                var first = locale.split('-')[0];
+                localized = _.find(docs, function(d) {
+                    return d.lang.toLowerCase() === first;
+                });
+                if (localized) return localized;
+            }
+
+            // finally fall back to english
+            return _.find(docs, function(d) {
+                return d.lang.toLowerCase() === 'en';
+            });
+        }
+
+        function keyValueReference(err, docs) {
+            var local;
+            if (!err && docs) {
+                local = findLocal(docs);
+            }
+            if (local) {
+                var types = [];
+                if (local.on_area) types.push('area');
+                if (local.on_node) types.push('point');
+                if (local.on_way) types.push('line');
+                local.types = types;
+                iD.ui.modal(context.container())
+                    .select('.content')
+                    .datum(local)
+                    .call(iD.ui.tagReference);
+            } else {
+                iD.ui.flash(context.container())
+                    .select('.content')
+                    .append('h3')
+                    .text(t('inspector.no_documentation_combination'));
+            }
+        }
+
+        function keyReference(err, values) {
+            if (!err && values.data.length) {
+                iD.ui.modal(context.container())
+                    .select('.content')
+                    .datum({
+                        data: values.data,
+                        title: 'Key:' + params.key,
+                        geometry: params.geometry
+                    })
+                    .call(iD.keyReference(context));
+            } else {
+                iD.ui.flash(context.container())
+                    .select('.content')
+                    .append('h3')
+                    .text(t('inspector.no_documentation_key'));
+            }
+        }
+
         var helpBtn = row.append('button')
             .attr('tabindex', -1)
             .attr('class', 'tag-help minor')
@@ -127,48 +193,9 @@ iD.ui.inspector = function() {
                     geometry: entity.geometry(context.graph())
                 });
                 if (d.key && d.value) {
-                    taginfo.docs(params, function(err, docs) {
-                        var en;
-                        if (!err && docs) {
-                            en = _.find(docs, function(d) {
-                                return d.lang == 'en';
-                            });
-                        }
-                        if (en) {
-                            var types = [];
-                            if (en.on_area) types.push('area');
-                            if (en.on_node) types.push('point');
-                            if (en.on_way) types.push('line');
-                            en.types = types;
-                            iD.ui.modal(context.container())
-                                .select('.content')
-                                .datum(en)
-                                .call(iD.ui.tagReference);
-                        } else {
-                            iD.ui.flash(context.container())
-                                .select('.content')
-                                .append('h3')
-                                .text(t('inspector.no_documentation_combination'));
-                        }
-                    });
+                    taginfo.docs(params, keyValueReference);
                 } else if (d.key) {
-                    taginfo.values(params, function(err, values) {
-                        if (!err && values.data.length) {
-                            iD.ui.modal(context.container())
-                                .select('.content')
-                                .datum({
-                                    data: values.data,
-                                    title: 'Key:' + params.key,
-                                    geometry: params.geometry
-                                })
-                                .call(iD.keyReference(context));
-                        } else {
-                            iD.ui.flash(context.container())
-                                .select('.content')
-                                .append('h3')
-                                .text(t('inspector.no_documentation_key'));
-                        }
-                    });
+                    taginfo.values(params, keyReference);
                 }
             });