fixes #2243

app/assets/javascripts/default/shortcuts.js

@@ -0,0 +1,70 @@
+(function() {
+  Danbooru.Shortcuts = {};
+
+  Danbooru.Shortcuts.initialize = function() {
+    $(document).bind("keypress", "s", function(e) {
+      Danbooru.Shortcuts.nav_scroll_down();
+    });
+
+    $(document).bind("keypress", "w", function(e) {
+      Danbooru.Shortcuts.nav_scroll_up();
+    });
+
+    $(document).bind("keypress", "q", function(e) {
+      $("#tags, #search_name, #search_name_matches, #query").trigger("focus").selectEnd();
+      e.preventDefault();
+    });
+
+    if ($("#image").length) { // post page or bookmarklet upload page
+      $(document).bind("keypress", "shift+e", function(e) {
+        if (!$("#edit-dialog").length) {
+          $("#edit").show();
+          $("#comments").hide();
+          $("#share").hide();
+          $("#post-sections li").removeClass("active");
+          $("#post-edit-link").parent("li").addClass("active");
+          $("#related-tags-container").show();
+
+          Danbooru.Post.open_edit_dialog();
+        }
+        e.preventDefault();
+      });
+    }
+
+    if ($("#c-posts").length && $("#a-show").length) {
+      $(document).bind("keypress", "shift+o", function(e) {
+        Danbooru.Post.approve(Danbooru.meta("post-id"));
+      });
+
+      $(document).bind("keypress", "r", function(e) {
+        $("#random-post")[0].click();
+      });
+    }
+
+    if ($("#c-posts").length && $("#a-index").length) {
+      $(document).bind("keypress", "r", function(e) {
+        $("#random-post")[0].click();
+      });
+    }
+  }
+
+  Danbooru.Shortcuts.nav_scroll_down = function() {
+    var scroll_top = $(window).scrollTop() + ($(window).height() * 0.15);
+    $(window).scrollTop(scroll_top);
+  }
+
+  Danbooru.Shortcuts.nav_scroll_up = function() {
+    var scroll_top = $(window).scrollTop() - ($(window).height() * 0.15);
+    if (scroll_top < 0) {
+      scroll_top = 0;
+    }
+    $(window).scrollTop(scroll_top);
+  }
+})();
+
+
+$(document).ready(function() {
+  if (Danbooru.meta("enable-js-navigation") === "true") {
+    Danbooru.Shortcuts.initialize();
+  }
+});