From d416d5f6c43dba0d2d2b394fe81429d0a43929cb Mon Sep 17 00:00:00 2001
From: Nicolas Stepien <stepien.nicolas@gmail.com>
Date: Thu, 21 Feb 2013 18:48:21 +0100
Subject: [PATCH] Add import/export settings buttons in the Settings. #702

---
 4chan_x.user.js     | 72 +++++++++++++++++++++++++++++++++++++++++++++
 src/features.coffee | 60 +++++++++++++++++++++++++++++++++++++
 2 files changed, 132 insertions(+)

diff --git a/4chan_x.user.js b/4chan_x.user.js
index 4aeca678d..e6a103130 100644
--- a/4chan_x.user.js
+++ b/4chan_x.user.js
@@ -1240,6 +1240,10 @@
     },
     main: function(section) {
       var ID, arr, checked, description, hiddenNum, key, li, obj, post, thread, ul, _ref, _ref1, _ref2;
+      section.innerHTML = "<div class=imp-exp>\n  <button class=export>Export settings</button>\n  <button class=import>Import settings</button>\n  <input type=file style='visibility:hidden'>\n</div>\n<p class=imp-exp-result></p>";
+      $.on($('.export', section), 'click', Settings["export"]);
+      $.on($('.import', section), 'click', Settings["import"]);
+      $.on($('input', section), 'change', Settings.onImport);
       _ref = Config.main;
       for (key in _ref) {
         obj = _ref[key];
@@ -1283,6 +1287,74 @@
       });
       return $.after($('input[name="Stubs"]', section).parentNode.parentNode, li);
     },
+    "export": function() {
+      var a, data, now, output;
+      now = Date.now();
+      data = {
+        version: g.VERSION,
+        date: now,
+        Conf: Conf,
+        WatchedThreads: $.get('WatchedThreads', {})
+      };
+      a = $.el('a', {
+        className: 'warning',
+        textContent: 'Save me!',
+        download: "4chan X Beta-" + now + ".json",
+        href: "data:application/json;base64," + (btoa(unescape(encodeURIComponent(JSON.stringify(data))))),
+        target: '_blank'
+      });
+      if ($.engine !== 'gecko') {
+        a.click();
+        return;
+      }
+      output = this.parentNode.nextElementSibling;
+      output.innerHTML = null;
+      return $.add(output, a);
+    },
+    "import": function() {
+      return this.nextElementSibling.click();
+    },
+    onImport: function() {
+      var file, output, reader;
+      if (!(file = this.files[0])) {
+        return;
+      }
+      output = this.parentNode.nextElementSibling;
+      if (!confirm('Your current settings will be entirely overwritten, are you sure?')) {
+        output.textContent = 'Import aborted.';
+        return;
+      }
+      reader = new FileReader();
+      reader.onload = function(e) {
+        var data;
+        try {
+          data = JSON.parse(decodeURIComponent(escape(e.target.result)));
+          Settings.loadSettings(data);
+          if (confirm('Import successful. Refresh now?')) {
+            return window.location.reload();
+          }
+        } catch (err) {
+          output.textContent = 'Import failed due to an error.';
+          return $.log(err.stack);
+        }
+      };
+      return reader.readAsText(file);
+    },
+    loadSettings: function(data) {
+      var key, val, _ref;
+      if (data.version.split('.')[0] === '2') {
+        data = Settings.convertSettingsFromV2(data);
+      }
+      _ref = data.Conf;
+      for (key in _ref) {
+        val = _ref[key];
+        $.set(key, val);
+      }
+      return $.set('WatchedThreads', data.WatchedThreads);
+    },
+    convertSettingsFromV2: function(data) {
+      return data;
+    },
     filter: function(section) {
       var select;
       section.innerHTML = "<div class=warning " + (Conf['Sauce'] ? 'hidden' : '') + "><code>Filter</code> is disabled.</div>\n<select name=filter>\n  <option value=guide>Guide</option>\n  <option value=name>Name</option>\n  <option value=uniqueID>Unique ID</option>\n  <option value=tripcode>Tripcode</option>\n  <option value=capcode>Capcode</option>\n  <option value=email>E-mail</option>\n  <option value=subject>Subject</option>\n  <option value=comment>Comment</option>\n  <option value=flag>Flag</option>\n  <option value=filename>Filename</option>\n  <option value=dimensions>Image dimensions</option>\n  <option value=filesize>Filesize</option>\n  <option value=MD5>Image MD5</option>\n</select>\n<div></div>";
diff --git a/src/features.coffee b/src/features.coffee
index 85c714c0d..6fa5e8488 100644
--- a/src/features.coffee
+++ b/src/features.coffee
@@ -226,6 +226,18 @@ Settings =
     section.scrollTop = 0
 
   main: (section) ->
+    section.innerHTML = """
+      <div class=imp-exp>
+        <button class=export>Export settings</button>
+        <button class=import>Import settings</button>
+        <input type=file style='visibility:hidden'>
+      </div>
+      <p class=imp-exp-result></p>
+    """
+    $.on $('.export', section), 'click',  Settings.export
+    $.on $('.import', section), 'click',  Settings.import
+    $.on $('input',   section), 'change', Settings.onImport
+
     for key, obj of Config.main
       ul = $.el 'ul',
         textContent: key
@@ -252,6 +264,54 @@ Settings =
       $.delete "hiddenThreads.#{g.BOARD}"
       $.delete "hiddenPosts.#{g.BOARD}"
     $.after $('input[name="Stubs"]', section).parentNode.parentNode, li
+  export: ->
+    now  = Date.now()
+    data =
+      version: g.VERSION
+      date: now
+      Conf: Conf
+      WatchedThreads: $.get('WatchedThreads', {})
+    a = $.el 'a',
+      className: 'warning'
+      textContent: 'Save me!'
+      download: "<%= meta.name %>-#{now}.json"
+      href: "data:application/json;base64,#{btoa unescape encodeURIComponent JSON.stringify data}"
+      target: '_blank'
+    if $.engine isnt 'gecko'
+      a.click()
+      return
+    # XXX Firefox won't let us download automatically.
+    output = @parentNode.nextElementSibling
+    output.innerHTML = null
+    $.add output, a
+  import: ->
+    @nextElementSibling.click()
+  onImport: ->
+    return unless file = @files[0]
+    output = @parentNode.nextElementSibling
+    unless confirm 'Your current settings will be entirely overwritten, are you sure?'
+      output.textContent = 'Import aborted.'
+      return
+    reader = new FileReader()
+    reader.onload = (e) ->
+      try
+        data = JSON.parse decodeURIComponent escape e.target.result
+        Settings.loadSettings data
+        if confirm 'Import successful. Refresh now?'
+          window.location.reload()
+      catch err
+        output.textContent = 'Import failed due to an error.'
+        $.log err.stack
+    reader.readAsText file
+  loadSettings: (data) ->
+    if data.version.split('.')[0] is '2'
+      data = Settings.convertSettingsFromV2 data
+    for key, val of data.Conf
+      $.set key, val
+    $.set 'WatchedThreads', data.WatchedThreads
+  convertSettingsFromV2: (data) ->
+    # XXX TODO
+    data
 
   filter: (section) ->
     section.innerHTML = """