add rules agreement page

js/rules-popup.js

@@ -0,0 +1,51 @@
+/*
+ * rules-popup.js
+ * https://github.com/mkwia/lainchan/js/rules-popup.js
+ *
+ * Forces user to accept rules from /rules.txt on first welcome
+ *
+ * 2016 mkwia <github.com/mkwia>
+ *
+ * Usage:
+ *   $config['additional_javascript'][] = 'js/jquery.min.js';
+ *   $config['additional_javascript'][] = 'js/rules-popup.js';
+ *
+ */
+
+$(function() {
+    if (typeof localStorage.rulesAccepted === "undefined") + function(c) {
+        var d = $("<div id='rules'>").prependTo("body").width("80%").height("80%")
+            .css("z-index", 9999).css("position", "fixed")
+            .css("top", "50%").css("bottom", 0).css("left", "50%").css("right", 0)
+            .css("margin-top", "-40vh").css("margin-left", "-40%")
+            .css("background", "black")
+            .css("text-align", "center").css("font-family", "sans-serif")
+            .css("font-size", "14px").css("color", "white")
+
+        d.html("" +
+
+            "<div style='font-size: 40px; line-height: 60px; position: absolute; top: 0px; height: 60px; width: 100%;'>lainchan rule agreement</div>" +
+
+            "<div style='text-align: left; position: absolute; bottom: 80px; top: 60px;" +
+            "width: 100%; background-color: #ddd; overflow: auto; font-family: serif; color: #444;'>" +
+            "<div style='padding: 10px; font-size: 12px;' id='rules-actual'>" +
+            "</div>" +
+            "</div>" +
+
+            "<div style='bottom: 0px; height: 80px; width: 100%; position: absolute;'>" +
+            "<div style='line-height: 40px;'>If you accept the rules, retype the captcha and press ACCEPT.</div>" +
+            "<div style='height: 40px;'><div style='display: inline-block; border: 1px solid white; font-family: serif; padding: 3px;'>" + c + "</div>" +
+            "<form onsubmit=\"if ($('#captcha').val() == '" + c + "') { localStorage.rulesAccepted = 1; $('#rules').remove(); } return false;\"" +
+            " style='display: inline-block;'>" +
+            "<input type='text' id='captcha' style='width: 100px;' />" +
+            "<input type='submit' value='ACCEPT' />" +
+            "</form>" +
+            "</div>" +
+            "</div>" +
+
+            "");
+
+        $("#rules-actual").load("/templates/rules.html");
+
+    }("faggotry1234");
+});