Simplify upvote/downvote implementation

Summary:
Use sigils to simplify the vote implementation and move most rendering to the server.

Use unicode glyphs in place of graphics.

Test Plan: {F19539}

Reviewers: pieter, starruler

Reviewed By: pieter

CC: aran

Maniphest Tasks: T1644

Differential Revision: https://secure.phabricator.com/D3518

src/applications/ponder/view/PonderVotableView.php

@@ -47,23 +47,60 @@ final class PonderVotableView extends AphrontView {
     require_celerity_resource('ponder-vote-css');
     require_celerity_resource('javelin-behavior-ponder-votebox');
 
-    Javelin::initBehavior(
-      'ponder-votebox',
+    Javelin::initBehavior('ponder-votebox', array());
+
+    $uri = id(new PhutilURI($this->uri))->alter('phid', $this->phid);
+
+    $up = javelin_render_tag(
+      'a',
       array(
-        'nodeid' => $this->phid,
-        'vote' => $this->vote,
-        'count' => $this->count,
-        'uri' => $this->uri
-      ));
+        'href'        => (string)$uri,
+        'sigil'       => 'upvote',
+        'mustcapture' => true,
+        'class'       => ($this->vote > 0) ? 'ponder-vote-active' : null,
+      ),
+      "\xE2\x96\xB2");
 
-    $content =
-      '<div class="ponder-votable">'.
-        '<div id="'.phutil_escape_html($this->phid).'" class="ponder-votebox">
-         </div>'.
-        $this->renderChildren().
-      '</div>';
+    $down = javelin_render_tag(
+      'a',
+      array(
+        'href'        => (string)$uri,
+        'sigil'       => 'downvote',
+        'mustcapture' => true,
+        'class'       => ($this->vote < 0) ? 'ponder-vote-active' : null,
+      ),
+      "\xE2\x96\xBC");
 
-    return $content;
+    $count = javelin_render_tag(
+      'div',
+      array(
+        'class'       => 'ponder-vote-count',
+        'sigil'       => 'ponder-vote-count',
+      ),
+      phutil_escape_html($this->count));
+
+    return javelin_render_tag(
+      'div',
+      array(
+        'class' => 'ponder-votable',
+        'sigil' => 'ponder-votable',
+        'meta' => array(
+          'count' => (int)$this->count,
+          'vote'  => (int)$this->vote,
+        ),
+      ),
+      javelin_render_tag(
+        'div',
+        array(
+          'class' => 'ponder-votebox',
+        ),
+        $up.$count.$down).
+      phutil_render_tag(
+        'div',
+        array(
+          'class' => 'ponder-votebox-content',
+        ),
+        $this->renderChildren()));
   }
 
 }

webroot/rsrc/css/application/ponder/vote.css

@@ -2,17 +2,45 @@
  * @provides ponder-vote-css
  */
 
-
-
-.ponder-votable .phabricator-transaction-view {
-  margin : 0;
-  padding : 0;
+.ponder-votebox {
+  text-align: center;
 }
 
-.ponder-votable .phabricator-transaction-detail {
-  min-height : 90px;
+.ponder-votebox a {
+  font-size: 20px;
+  line-height: 20px;
+  display: block;
+
+  text-decoration: none;
+  color: #999999;
+  font-weight: normal;
+
+  /* Our default fonts have weirdly different up/down arrow sizes. */
+  font-family: Arial;
 }
 
+.ponder-votebox a:hover {
+  color: #606060;
+}
+
+.ponder-votebox a.ponder-vote-active {
+  color: #3b5998;
+}
+
+.ponder-votebox a.ponder-vote-active:hover {
+  color: #a1bbe5;
+}
+
+.ponder-vote-count {
+  color: #888888;
+  font-size: 14px;
+  line-height: 14px;
+  font-weight: bold;
+}
+
+
+
+
 .ponder-votebox {
   float  : left;
   width  : 32px;
@@ -21,57 +49,11 @@
   margin-left : 10px;
 }
 
-.ponder-upbutton {
-  border : none;
-  padding : 0;
+.ponder-votable .phabricator-transaction-view {
   margin : 0;
-  width : 32px;
-  height : 13px;
-}
-
-.ponder-downbutton {
-  border : none;
   padding : 0;
-  margin : 0;
-  width : 32px;
-  height : 13px;
 }
 
-.ponder-votecount {
-  width : 32px;
-  height : 22pt;
-  padding : 0;
-  margin : 0;
-  overflow : visible;
-  text-align : center;
-  font-size : 15pt;
-}
-
-.ponder-upbutton:hover {
-  cursor : pointer;
-}
-
-.ponder-downbutton:hover {
-  cursor : pointer;
-}
-
-.ponder-votable-bottom {
-  clear : both;
-}
-
-.ponder-upbutton {
-  background : url(/rsrc/image/application/ponder/upvote.png) 0 -13px no-repeat;
-}
-
-.ponder-upbutton.ponder-vote-up {
-  background : url(/rsrc/image/application/ponder/upvote.png) 0 0 no-repeat;
-}
-
-.ponder-downbutton {
-  background : url(/rsrc/image/application/ponder/downvote.png)
-    0 -13px no-repeat;
-}
-
-.ponder-downbutton.ponder-vote-down {
-  background : url(/rsrc/image/application/ponder/downvote.png) 0 0 no-repeat;
+.ponder-votable .phabricator-transaction-detail {
+  min-height : 90px;
 }

webroot/rsrc/js/application/ponder/behavior-votebox.js

@@ -3,74 +3,53 @@
  * @requires javelin-behavior
  *           javelin-dom
  *           javelin-util
- *           phabricator-shaped-request
+ *           javelin-stratcom
+ *           javelin-request
  */
 
 JX.behavior('ponder-votebox', function(config) {
 
-  var node = JX.$(config.nodeid);
-  var vote = config.vote;
-  var count = config.count | 0;
-  var targetURI = config.targetURI;
+  function handle_vote(e, vote) {
+    e.kill();
 
-  var upnode, countnode, downnode;
+    var root = e.getNode('ponder-votable');
+    var data = e.getNodeData('ponder-votable');
 
-  // this defines the behavior of the up/downvote
-  // buttons, e.g. clicking 'up' transitions from
-  // an 'up' vote to a 'none' vote
-  var votecycle = {
-    "1"  : { up : "0", down : "-1" },
-    "0"  : { up : "1", down : "-1" },
-    "-1" : { up : "1",  down : "0" }
-  };
+    if (data.vote != vote) {
+      data.vote = vote;
+      data.count += vote;
+    } else {
+      // User is undoing their vote.
+      data.vote = 0;
+      data.count -= vote;
+    }
 
-  var voteclass = {
-    "0"  : "ponder-vote-none",
-    "-1" : "ponder-vote-down",
-    "1"  : "ponder-vote-up"
-  };
+    var upv = JX.DOM.find(root, 'a', 'upvote');
+    JX.DOM.alterClass(upv, 'ponder-vote-active', (data.vote > 0));
 
-  function decorate() {
-    upnode = JX.$N('div');
-    countnode = JX.$N('div');
-    downnode = JX.$N('div');
-    node.appendChild(upnode);
-    node.appendChild(countnode);
-    node.appendChild(downnode);
-    JX.DOM.alterClass(upnode, "ponder-upbutton " + voteclass[vote], true);
-    JX.DOM.alterClass(downnode, "ponder-downbutton " + voteclass[vote], true);
-    JX.DOM.alterClass(countnode, "ponder-votecount", true);
+    var downv = JX.DOM.find(root, 'a', 'downvote');
+    JX.DOM.alterClass(downv, 'ponder-vote-active', (data.vote < 0))
+
+    JX.DOM.setContent(
+      JX.DOM.find(root, 'div', 'ponder-vote-count'),
+      data.count);
+
+    new JX.Request(e.getTarget().href, JX.bag)
+      .setData({vote: data.vote})
+      .send()
   }
 
-  function update_state() {
-    upnode.className = "ponder-upbutton " + voteclass[vote];
-    downnode.className = "ponder-downbutton " + voteclass[vote];
-    JX.DOM.setContent(countnode, JX.$H(count.toString()));
-  }
+  JX.Stratcom.listen(
+    'click',
+    'downvote',
+    function(e) {
+      handle_vote(e, -1);
+    });
 
-  function getdata() {
-    return { phid : config.nodeid, vote : vote };
-  }
-
-  var request = new JX.PhabricatorShapedRequest(config.uri, JX.id, getdata);
-  var trigger = JX.bind(request, request.trigger);
-
-  function handle_upvote(e) {
-    count += votecycle[vote].up - vote;
-    vote = votecycle[vote].up;
-    trigger();
-    update_state();
-  }
-
-  function handle_downvote(e) {
-    count += votecycle[vote].down - vote;
-    vote = votecycle[vote].down;
-    trigger();
-    update_state();
-  }
-
-  decorate();
-  update_state();
-  JX.DOM.listen(upnode, 'click', null, handle_upvote);
-  JX.DOM.listen(downnode, 'click', null, handle_downvote);
+  JX.Stratcom.listen(
+    'click',
+    'upvote',
+    function(e) {
+      handle_vote(e, 1);
+    });
 });