From aad64bc256f65be5f33455c92966aa68e11c7552 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Christian=20M=C3=BCller?= <chmllr@me.com>
Date: Thu, 25 Dec 2014 15:56:10 +0100
Subject: [PATCH] expected note title feature added

---
 resources/public/js/publishing.js | 29 ++++++++++++++++++++++++++++-
 src/notehub/api.clj               | 11 +++++++----
 src/notehub/handler.clj           |  6 ++++++
 src/notehub/views.clj             | 10 +++++++---
 4 files changed, 48 insertions(+), 8 deletions(-)

diff --git a/resources/public/js/publishing.js b/resources/public/js/publishing.js
index e3551b7..a65aab5 100644
--- a/resources/public/js/publishing.js
+++ b/resources/public/js/publishing.js
@@ -3,7 +3,28 @@ var iosDetected = navigator.userAgent.match("(iPad|iPod|iPhone)");
 var timer = null;
 var timerDelay = iosDetected ? 800 : 400;
 var show = function(elem) { elem.style.display = "block" }
-var $note, $action, $preview, $plain_password, $input_elems, $dashed_line, updatePreview;
+var $note, $action, $preview, $plain_password, $input_elems, $dashed_line, $proposed_title, updatePreview;
+var firstLines_;
+var backendTimer;
+
+function updateProposedTitle() {
+    clearTimeout(backendTimer);
+    backendTimer = setTimeout(function () {
+        var http = new XMLHttpRequest();
+        var url = "/propose-title";
+        http.open("POST", url, true);
+        http.onreadystatechange = function() {
+            if(http.readyState == 4 && http.status == 200) {
+                var now = new Date();
+                $proposed_title.innerHTML = 
+        "Expected URL: https://www.notehub.org/" + 
+        now.getFullYear() + "/" + (now.getMonth()+1) + "/" + now.getDate() + "/" +
+        http.responseText;
+            }
+        }
+        http.send($note.value);
+    }, 500);
+}
 
 function md2html(input){
   return marked(input);
@@ -14,6 +35,7 @@ function onLoad () {
   $action = $("action");
   $preview = $("preview");
   $plain_password = $("plain-password");
+  $proposed_title = $("proposed-title");
   $input_elems = $("input-elems");
   $dashed_line = $("dashed-line");
   updatePreview = function(){
@@ -24,6 +46,11 @@ function onLoad () {
       show($dashed_line);
       show($input_elems);
       $preview.innerHTML = md2html(content);
+      var firstLines = content.split("\n", 2);
+      if(firstLines_ != firstLines) {
+          firstLines_ = firstLines;
+          updateProposedTitle();
+      }
     }, delay);
   };
   if($action){
diff --git a/src/notehub/api.clj b/src/notehub/api.clj
index 1f4f6f6..2a920f5 100644
--- a/src/notehub/api.clj
+++ b/src/notehub/api.clj
@@ -75,6 +75,12 @@
        :publisher (storage/get-publisher noteID)})
     {:status (create-response false "noteID '%s' unknown" noteID)}))
 
+(defn propose-title [note]
+  (let [raw-title (filter #(or (= \- %) (Character/isLetterOrDigit %))
+                          (-> note derive-title trim (sreplace " " "-") lower-case))
+        max-length (get-setting :max-title-length #(Integer/parseInt %) 80)]
+    (apply str (take max-length raw-title))))
+
 (defn post-note
   [{:keys [note pid signature password hostURL] :as params}]
   ;(log "post-note: %s" {:pid pid :signature signature :password password :note note})
@@ -86,10 +92,7 @@
     (if (empty? errors)
       (let [[year month day] (map str (get-date))
             params (select-keys params [:text-size :header-size :text-font :header-font :theme])
-            raw-title (filter #(or (= \- %) (Character/isLetterOrDigit %))
-                              (-> note derive-title trim (sreplace " " "-") lower-case))
-            max-length (get-setting :max-title-length #(Integer/parseInt %) 80)
-            proposed-title (apply str (take max-length raw-title))
+            proposed-title (propose-title note)
             title (first (drop-while #(storage/note-exists? (build-key year month day %))
                                      (cons proposed-title
                                            (map #(str proposed-title "-" (+ 2 %)) (range)))))
diff --git a/src/notehub/handler.clj b/src/notehub/handler.clj
index 219068b..0f30409 100644
--- a/src/notehub/handler.clj
+++ b/src/notehub/handler.clj
@@ -59,6 +59,12 @@
 
            (GET "/" [] landing-page)
 
+           (POST "/propose-title" {body :body}
+                 (let [note (slurp body)]
+                   (return-content-type 
+                     "text/plain; charset=utf-8"
+                     (api/propose-title note))))
+
            (GET "/:year/:month/:day/:title/export" [year month day title]
                 (when-let [md-text (:note (api/get-note {:noteID (api/build-key year month day title)}))]
                   (return-content-type "text/plain; charset=utf-8" md-text)))
diff --git a/src/notehub/views.clj b/src/notehub/views.clj
index 74252a6..a114f4f 100644
--- a/src/notehub/views.clj
+++ b/src/notehub/views.clj
@@ -60,10 +60,14 @@
                       fields
                       (text-area :note content)
                       [:fieldset#input-elems {:class css-class}
-                       (text-field {:class "ui-elem" :placeholder (get-message passwd-msg)}
-                                   :plain-password)
+                       (text-field {:class "ui-elem"
+                                    :placeholder (get-message passwd-msg)}
+                                    :plain-password) "&nbsp"
                        (submit-button {:class "button ui-elem"
-                                       :id :publish-button} (get-message command))])])))
+                                       :id :publish-button} (get-message command))
+                       [:br]
+                       [:br]
+                       [:div#proposed-title {:style "color: #aaa; font-size: 0.8em"}]])])))
 
 (def landing-page
   (layout :no-js {} (get-message :page-title)