Merge remote-tracking branch 'origin/master' into ghc-head

21 files changed, 346 insertions, 193 deletions

diff --git a/haddock-api/haddock-api.cabal b/haddock-api/haddock-api.cabal
index 749225be..660108ac 100644
--- a/haddock-api/haddock-api.cabal
+++ b/haddock-api/haddock-api.cabal
@@ -86,12 +86,12 @@ library
     Haddock.Backends.Xhtml.Decl
     Haddock.Backends.Xhtml.DocMarkup
     Haddock.Backends.Xhtml.Layout
+    Haddock.Backends.Xhtml.Meta
     Haddock.Backends.Xhtml.Names
     Haddock.Backends.Xhtml.Themes
     Haddock.Backends.Xhtml.Types
     Haddock.Backends.Xhtml.Utils
     Haddock.Backends.LaTeX
-    Haddock.Backends.Meta
     Haddock.Backends.HaddockDB
     Haddock.Backends.Hoogle
     Haddock.Backends.Hyperlinker
diff --git a/haddock-api/resources/html/Ocean.std-theme/ocean.css b/haddock-api/resources/html/Ocean.std-theme/ocean.css
index 20e37ca8..0852dea5 100644
--- a/haddock-api/resources/html/Ocean.std-theme/ocean.css
+++ b/haddock-api/resources/html/Ocean.std-theme/ocean.css
@@ -46,6 +46,14 @@ a[href].def:hover { color: rgb(78, 98, 114); }
 
 /* @end */
 
+/* @group Show and hide with JS */
+
+body.js-enabled .hide-when-js-enabled {
+  display: none;
+}
+
+/* @end */
+
 /* @group Fonts & Sizes */
 
 /* Basic technique & IE workarounds from YUI 3
@@ -106,7 +114,7 @@ pre, code, kbd, samp, tt, .src {
 
 /* @group Common */
 
-.caption, h1, h2, h3, h4, h5, h6 {
+.caption, h1, h2, h3, h4, h5, h6, summary {
   font-weight: bold;
   color: rgb(78,98,114);
   margin: 0.8em 0 0.4em;
@@ -168,6 +176,16 @@ p.caption.expander {
   min-height: 9px;
 }
 
+summary {
+  cursor: pointer;
+  outline: none;
+  list-style-image: url(plus.gif);
+  list-style-position: outside;
+}
+
+details[open] > summary {
+  list-style-image: url(minus.gif);
+}
 
 pre {
   padding: 0.25em;
@@ -338,7 +356,8 @@ div#style-menu-holder {
   z-index: 1;
 }
 
-#synopsis .caption {
+#synopsis summary {
+  display: block;
   float: left;
   width: 29px;
   color: rgba(255,255,255,0);
@@ -346,16 +365,13 @@ div#style-menu-holder {
   margin: 0;
   font-size: 1px;
   padding: 0;
+  background: url(synopsis.png) no-repeat 0px -8px;
 }
 
-#synopsis p.caption.collapser {
+#synopsis details[open] > summary {
   background: url(synopsis.png) no-repeat -64px -8px;
 }
 
-#synopsis p.caption.expander {
-  background: url(synopsis.png) no-repeat 0px -8px;
-}
-
 #synopsis ul {
   height: 100%;
   overflow: auto;
diff --git a/haddock-api/resources/html/haddock-bundle.min.js b/haddock-api/resources/html/haddock-bundle.min.js
index 64357c4a..82a34ddb 100644
--- a/haddock-api/resources/html/haddock-bundle.min.js
+++ b/haddock-api/resources/html/haddock-bundle.min.js
@@ -1,2 +1,2 @@
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diff --git a/haddock-api/resources/html/js-src/cookies.ts b/haddock-api/resources/html/js-src/cookies.ts
new file mode 100644
index 00000000..3b68d6d8
--- /dev/null
+++ b/haddock-api/resources/html/js-src/cookies.ts
@@ -0,0 +1,20 @@
+export function setCookie(name: string, value: string) {
+  document.cookie = name + "=" + encodeURIComponent(value) + ";path=/;";
+}
+
+export function clearCookie(name: string) {
+  document.cookie = name + "=;path=/;expires=Thu, 01-Jan-1970 00:00:01 GMT;";
+}
+
+export function getCookie(name: string) {
+  const nameEQ = name + "=";
+  const ca = document.cookie.split(';');
+  for (let i = 0; i < ca.length; i++) {
+    let c = ca[i];
+    while (c.charAt(0)==' ') c = c.substring(1,c.length);
+    if (c.indexOf(nameEQ) == 0) {
+      return decodeURIComponent(c.substring(nameEQ.length,c.length));
+    }
+  }
+  return null;
+}
\ No newline at end of file
diff --git a/haddock-api/resources/html/js-src/details-helper.ts b/haddock-api/resources/html/js-src/details-helper.ts
new file mode 100644
index 00000000..f13ac905
--- /dev/null
+++ b/haddock-api/resources/html/js-src/details-helper.ts
@@ -0,0 +1,106 @@
+import {getCookie} from "./cookies";
+
+interface HTMLDetailsElement extends HTMLElement {
+  open: boolean
+}
+
+interface DetailsInfo {
+  element: HTMLDetailsElement
+  openByDefault: boolean
+  toggles: HTMLElement[]
+}
+
+// Global state
+const detailsRegistry: { [id: string]: DetailsInfo } = {};
+const toggled: { [id: string]: true } = {}; /* stores which <details> are not in their default state */
+
+function lookupDetailsRegistry(id: string): DetailsInfo {
+  const info = detailsRegistry[id];
+  if (info == undefined) { throw new Error(`could not find <details> element with id '${id}'`); }
+  return info;
+}
+
+function onDetailsToggle(ev: Event) {
+  const element = ev.target as HTMLDetailsElement;
+  const id = element.id;
+  const info = lookupDetailsRegistry(id);
+  const isOpen = info.element.open;
+  for (const toggle of info.toggles) {
+    if (toggle.classList.contains('details-toggle-control')) {
+      toggle.classList.add(isOpen ? 'collapser' : 'expander');
+      toggle.classList.remove(isOpen ? 'expander' : 'collapser');
+    }
+  }
+  if (element.open == info.openByDefault) {
+    delete toggled[id];
+  } else {
+    toggled[id] = true;
+  }
+  rememberToggled();
+}
+
+function gatherDetailsElements() {
+  const els: HTMLDetailsElement[] = Array.prototype.slice.call(document.getElementsByTagName('details'));
+  for (const el of els) {
+    if (typeof el.id == "string" && el.id.length > 0) {
+      detailsRegistry[el.id] = {
+        element: el,
+        openByDefault: !!el.open,
+        toggles: [] // added later
+      };
+      el.addEventListener('toggle', onDetailsToggle);
+    }
+  }
+}
+
+function toggleDetails(id: string) {
+  const {element} = lookupDetailsRegistry(id);
+  element.open = !element.open;
+}
+
+function rememberToggled() {
+  const sections: string[] = Object.keys(toggled);
+  // cookie specific to this page; don't use setCookie which sets path=/
+  document.cookie = "toggled=" + encodeURIComponent(sections.join('+'));
+}
+
+function restoreToggled() {
+  const cookie = getCookie("toggled");
+  if (!cookie) { return; }
+  const ids = cookie.split('+');
+  for (const id of ids) {
+    const info = detailsRegistry[id];
+    toggled[id] = true;
+    if (info) {
+      info.element.open = !info.element.open;
+    }
+  }
+}
+
+function onToggleClick(ev: MouseEvent) {
+  ev.preventDefault();
+  const toggle = ev.currentTarget as HTMLElement;
+  const id = toggle.getAttribute('data-details-id');
+  if (!id) { throw new Error("element with class 'details-toggle' has no 'data-details-id' attribute!"); }
+  toggleDetails(id);
+}
+
+function initCollapseToggles() {
+  const toggles: HTMLElement[] = Array.prototype.slice.call(document.getElementsByClassName('details-toggle'));
+  toggles.forEach(toggle => {
+    const id = toggle.getAttribute('data-details-id');
+    if (!id) { throw new Error("element with class 'details-toggle' has no 'data-details-id' attribute!"); }
+    const info = lookupDetailsRegistry(id);
+    info.toggles.push(toggle);
+    toggle.addEventListener('click', onToggleClick);
+    if (toggle.classList.contains('details-toggle-control')) {
+      toggle.classList.add(info.element.open ? 'collapser' : 'expander');
+    }
+  });
+}
+
+export function init() {
+  gatherDetailsElements();
+  restoreToggled();
+  initCollapseToggles();
+}
\ No newline at end of file
diff --git a/haddock-api/resources/html/js-src/init.ts b/haddock-api/resources/html/js-src/init.ts
index 0619dfc3..877874ae 100644
--- a/haddock-api/resources/html/js-src/init.ts
+++ b/haddock-api/resources/html/js-src/init.ts
@@ -1,4 +1,5 @@
-import * as util from "./haddock-util";
+import * as styleMenu from "./style-menu";
+import * as detailsHelper from "./details-helper";
 import * as quickJump from "./quick-jump";
 
 function onDomReady(callback: () => void) {
@@ -14,8 +15,8 @@ function onDomReady(callback: () => void) {
 }
 
 onDomReady(() => {
-  util.addStyleMenu();
-  util.resetStyle();
-  util.restoreCollapsed();
+  document.body.classList.add('js-enabled');
+  styleMenu.init();
+  detailsHelper.init();
   quickJump.init();
 });
\ No newline at end of file
diff --git a/haddock-api/resources/html/js-src/quick-jump.tsx b/haddock-api/resources/html/js-src/quick-jump.tsx
index a2bcdb64..97ac14af 100644
--- a/haddock-api/resources/html/js-src/quick-jump.tsx
+++ b/haddock-api/resources/html/js-src/quick-jump.tsx
@@ -3,10 +3,6 @@ import preact = require("preact");
 
 const { h, Component } = preact;
 
-declare interface ObjectConstructor {
-  assign(target: any, ...sources: any[]): any;
-}
-
 type DocItem = {
   display_html: string
   name: string
@@ -19,8 +15,13 @@ function loadJSON(path: string, success: (json: DocItem[]) => void, error: (xhr:
   xhr.onreadystatechange = () => {
     if (xhr.readyState === XMLHttpRequest.DONE) {
       if (xhr.status === 200) {
-        if (success)
-          success(JSON.parse(xhr.responseText));
+        if (success) {
+          try {
+            success(JSON.parse(xhr.responseText));
+          } catch (exc) {
+            error(xhr);
+          }
+        }
       } else {
         if (error) { error(xhr); }
       }
@@ -102,7 +103,7 @@ class QuickJump extends Component<QuickJumpProps, QuickJumpState> {
     loadJSON(this.props.baseUrl + "/doc-index.json", (data) => {
       this.setState({
         fuse: new Fuse(data, {
-          threshold: 0.4,
+          threshold: 0.25,
           caseSensitive: true,
           includeScore: true,
           tokenize: true,
@@ -218,7 +219,19 @@ class QuickJump extends Component<QuickJumpProps, QuickJumpState> {
   }
 
   render(props: any, state: QuickJumpState) {
-    if (state.failedLoading) { return null; }
+    if (state.failedLoading) {
+      const usingFileProtocol = window.location.protocol == 'file:';
+      return <div id="search" class={state.isVisible ? '' : 'hidden'}>
+        <div id="search-results">
+          <p class="error">Failed to load file 'doc-index.json' containing definitions in this package.</p>
+          {usingFileProtocol ? <p class="error">
+              To use quick jump, load this page with HTTP (from a local static file web server) instead of using the <code>file://</code> protocol.
+              (For security reasons, it is not possible to fetch auxiliary files using JS in a HTML page opened with <code>file://</code>.)
+            </p> : []
+          }
+        </div>
+      </div>;
+    }
 
     this.linkIndex = 0;
 
diff --git a/haddock-api/resources/html/js-src/haddock-util.ts b/haddock-api/resources/html/js-src/style-menu.ts
index 257ceb6a..3911655b 100644
--- a/haddock-api/resources/html/js-src/haddock-util.ts
+++ b/haddock-api/resources/html/js-src/style-menu.ts
@@ -1,5 +1,7 @@
 // Haddock JavaScript utilities
 
+import {getCookie, setCookie, clearCookie} from "./cookies";
+
 const rspace = /\s\s+/g,
     rtrim = /^\s+|\s+$/g;
 
@@ -37,7 +39,6 @@ function toggleClass(elem: Element, valueOn: string, valueOff: string, bool?: bo
   return bool;
 }
 
-
 function makeClassToggle(valueOn: string, valueOff: string): (elem: Element, bool?: boolean) => boolean {
   return function(elem, bool) {
     return toggleClass(elem, valueOn, valueOff, bool);
@@ -45,69 +46,6 @@ function makeClassToggle(valueOn: string, valueOff: string): (elem: Element, boo
 }
 
 const toggleShow = makeClassToggle("show", "hide");
-const toggleCollapser = makeClassToggle("collapser", "expander");
-
-function toggleSection(id: string): boolean {
-  const b = toggleShow(document.getElementById("section." + id) as Element);
-  toggleCollapser(document.getElementById("control." + id) as Element, b);
-  rememberCollapsed(id);
-  return b;
-}
-
-// TODO: get rid of global variables
-if (typeof window !== 'undefined') {
-  (window as any).toggleSection = toggleSection;
-}
-
-const collapsed: { [id: string]: boolean } = {};
-function rememberCollapsed(id: string) {
-  if(collapsed[id])
-    delete collapsed[id]
-  else
-    collapsed[id] = true;
-
-  const sections: string[] = [];
-  for(let i in collapsed) {
-    if(collapsed.hasOwnProperty(i))
-      sections.push(i);
-  }
-  // cookie specific to this page; don't use setCookie which sets path=/
-  document.cookie = "collapsed=" + encodeURIComponent(sections.join('+'));
-}
-
-export function restoreCollapsed() {
-  const cookie = getCookie("collapsed");
-  if(!cookie)
-    return;
-
-  const ids = cookie.split('+');
-  for(const i in ids)
-  {
-    if(document.getElementById("section." + ids[i]))
-      toggleSection(ids[i]);
-  }
-}
-
-function setCookie(name: string, value: string) {
-  document.cookie = name + "=" + encodeURIComponent(value) + ";path=/;";
-}
-
-function clearCookie(name: string) {
-  document.cookie = name + "=;path=/;expires=Thu, 01-Jan-1970 00:00:01 GMT;";
-}
-
-function getCookie(name: string) {
-  const nameEQ = name + "=";
-  const ca = document.cookie.split(';');
-  for (let i = 0; i < ca.length; i++) {
-    let c = ca[i];
-    while (c.charAt(0)==' ') c = c.substring(1,c.length);
-    if (c.indexOf(nameEQ) == 0) {
-      return decodeURIComponent(c.substring(nameEQ.length,c.length));
-    }
-  }
-  return null;
-}
 
 function addMenuItem(html: string) {
   const menu = document.getElementById("page-menu");
@@ -123,7 +61,7 @@ function styles(): HTMLLinkElement[] {
   return es.filter((a: HTMLLinkElement) => a.rel.indexOf("style") != -1 && a.title);
 }
 
-export function addStyleMenu() {
+function addStyleMenu() {
   const as = styles();
   let btns = "";
   as.forEach((a) => {
@@ -162,7 +100,7 @@ function setActiveStyleSheet(title: string) {
   styleMenu(false);
 }
 
-export function resetStyle() {
+function resetStyle() {
   const s = getCookie("haddock-style");
   if (s) setActiveStyleSheet(s);
 }
@@ -170,4 +108,9 @@ export function resetStyle() {
 function styleMenu(show?: boolean) {
   const m = document.getElementById('style-menu');
   if (m) toggleShow(m, show);
+}
+
+export function init() {
+  addStyleMenu();
+  resetStyle();
 }
\ No newline at end of file
diff --git a/haddock-api/resources/html/package.json b/haddock-api/resources/html/package.json
index 3f2922fa..165c4cb5 100644
--- a/haddock-api/resources/html/package.json
+++ b/haddock-api/resources/html/package.json
@@ -3,7 +3,8 @@
   "version": "0.1.0",
   "description": "A drop-down search on Haddock docs for navigating quickly to definitions of Haskell functions and types in the current package",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "build": "gulp"
   },
   "repository": {
     "type": "git",
diff --git a/haddock-api/resources/html/quick-jump.css b/haddock-api/resources/html/quick-jump.css
index b69903c3..ede05042 100644
--- a/haddock-api/resources/html/quick-jump.css
+++ b/haddock-api/resources/html/quick-jump.css
@@ -33,17 +33,24 @@
   outline: none;
 }
 
+#search p.error {
+  color: rgb(107, 24, 24);
+  font-weight: bold;
+}
+
 #search-results {
-  top: 3em;
-  max-height: calc(100% - 3em);
   box-sizing: border-box;
-  border-width: 0 0.05em 0.05em;
-  border-style: solid;
-  border-color: #b2d5fb;
+  border: 0.05em solid #b2d5fb;
   background: #e8f3ff;
   overflow-y: auto;
 }
 
+#search-form input + #search-results {
+  border-top: none;
+  top: 3em;
+  max-height: calc(100% - 3em);
+}
+
 /* @end */
 
 /* @group search results */
diff --git a/haddock-api/resources/html/quick-jump.min.js b/haddock-api/resources/html/quick-jump.min.js
index c9f2b445..f22f8f28 100644
--- a/haddock-api/resources/html/quick-jump.min.js
+++ b/haddock-api/resources/html/quick-jump.min.js
@@ -1,2 +1,2 @@
-!function t(e,n,o){function r(s,a){if(!n[s]){if(!e[s]){var l="function"==typeof require&&require;if(!a&&l)return l(s,!0);if(i)return i(s,!0);var c=new Error("Cannot find module '"+s+"'");throw c.code="MODULE_NOT_FOUND",c}var u=n[s]={exports:{}};e[s][0].call(u.exports,function(t){var n=e[s][1][t];return r(n||t)},u,u.exports,t,e,n,o)}return n[s].exports}for(var i="function"==typeof require&&require,s=0;s<o.length;s++)r(o[s]);return r}({1:[function(t,e,n){"use strict";function o(t,e,n){var o=new XMLHttpRequest;o.onreadystatechange=function(){o.readyState===XMLHttpRequest.DONE&&(200===o.status?e&&e(JSON.parse(o.responseText)):n&&n(o))},o.open("GET",t,!0),o.send()}function r(t){var e=document.querySelector("#page-menu"),n=document.createElement("li");e.insertBefore(n,e.firstChild),p.render(f(v,{onClick:t,title:"Quick Jump"}),e,n)}function i(t,e){return e.length<=t?e:e.slice(0,t)}function s(){return f("table",{class:"keyboard-shortcuts"},f("tr",null,f("th",null,"Key"),f("th",null,"Shortcut")),f("tr",null,f("td",null,f("span",{class:"key"},"s")),f("td",null,"Open this search box")),f("tr",null,f("td",null,f("span",{class:"key"},"esc")),f("td",null,"Close this search box")),f("tr",null,f("td",null,f("span",{class:"key"},"↓"),",",f("span",{class:"key"},"ctrl")," + ",f("span",{class:"key"},"j")),f("td",null,"Move down in search results")),f("tr",null,f("td",null,f("span",{class:"key"},"↑"),",",f("span",{class:"key"},"ctrl")," + ",f("span",{class:"key"},"k")),f("td",null,"Move up in search results")),f("tr",null,f("td",null,f("span",{class:"key"},"↵")),f("td",null,"Go to active search result")))}function a(){return f("p",null,"You can find any exported type, constructor, class, function or pattern defined in this package by (approximate) name.")}function l(t){var e=[f("p",null,"Your search for '",t.searchString,"' produced the following list of results: ",f("code",null,"[]"),"."),f("p",null,f("code",null,"Nothing")," matches your query for '",t.searchString,"'."),f("p",null,f("code",null,"Left \"no matches for '",t.searchString,"'\" :: Either String (NonEmpty SearchResult)"))];return e[(t.searchString||"a").charCodeAt(0)%e.length]}function c(t,e){p.render(f(_,{baseUrl:t||".",showHideTrigger:e||r}),document.body)}var u=this&&this.__extends||function(){var t=Object.setPrototypeOf||{__proto__:[]}instanceof Array&&function(t,e){t.__proto__=e}||function(t,e){for(var n in e)e.hasOwnProperty(n)&&(t[n]=e[n])};return function(e,n){function o(){this.constructor=e}t(e,n),e.prototype=null===n?Object.create(n):(o.prototype=n.prototype,new o)}}();Object.defineProperty(n,"__esModule",{value:!0});var h=t("fuse.js"),p=t("preact"),f=p.h,d=p.Component,v=function(t){function e(){return null!==t&&t.apply(this,arguments)||this}return u(e,t),e.prototype.render=function(t){return f("li",null,f("a",{href:"#",onClick:function(e){e.preventDefault(),t.onClick()}},t.title))},e}(d),_=function(t){function e(){var e=null!==t&&t.apply(this,arguments)||this;return e.linkIndex=0,e.focusPlease=!1,e.navigatedByKeyboard=!1,e}return u(e,t),e.prototype.componentWillMount=function(){var t=this;this.setState({searchString:"",isVisible:!1,expanded:{},activeLinkIndex:-1,moduleResults:[]}),o(this.props.baseUrl+"/doc-index.json",function(e){t.setState({fuse:new h(e,{threshold:.4,caseSensitive:!0,includeScore:!0,tokenize:!0,keys:["name","module"]}),moduleResults:[]})},function(e){console&&console.error("could not load 'doc-index.json' for 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e=Math.max(-1,Math.min(this.linkIndex-1,this.state.activeLinkIndex+t));this.navigatedByKeyboard=!0,this.setState({activeLinkIndex:e})},e.prototype.followActiveLink=function(){this.activeLinkAction&&this.activeLinkAction()},e.prototype.updateResults=function(){var t=this.input&&this.input.value||"",e={};this.state.fuse.search(t).forEach(function(t){var n=t.item.module;(e[n]||(e[n]=[])).push(t)});var n=[];for(var o in e)!function(t){var o=e[t],r=0;o.forEach(function(t){r+=1/t.score}),n.push({module:t,totalScore:1/r,items:o})}(o);n.sort(function(t,e){return t.totalScore-e.totalScore}),this.setState({searchString:t,isVisible:!0,moduleResults:n})},e.prototype.componentDidUpdate=function(){if(this.searchResults&&this.activeLink&&this.navigatedByKeyboard){var 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name",ref:function(t){n.input=t},onFocus:this.show.bind(this),onClick:this.show.bind(this),onInput:this.updateResults.bind(this)})),f("div",{id:"search-results",ref:function(t){n.searchResults=t},onMouseDown:o,onMouseOver:function(t){for(var e=t.target;e&&"function"==typeof e.getAttribute;){var o=e.getAttribute("data-link-index");if("string"==typeof o){var r=parseInt(o,10);n.setState({activeLinkIndex:r});break}e=e.parentNode}}},""===e.searchString?[f(a,null),f(s,null)]:0==r.length?f(l,{searchString:e.searchString}):f("ul",null,r)))},e.prototype.renderResultsInModule=function(t){var e=this,n=t.items,o=t.module,r=this.state.expanded[o]||n.length<=10,s=r?n:i(8,n),a=function(t){return f("li",{class:"search-result"},e.navigationLink(e.props.baseUrl+"/"+t.link,{},f(g,{html:t.display_html})))};return f("li",{class:"search-module"},f("h4",null,o),f("ul",null,s.map(function(t){return a(t.item)}),r?[]:f("li",{class:"more-results"},this.actionLink(function(){var 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diff --git a/haddock-api/src/Haddock.hs b/haddock-api/src/Haddock.hs
index de40d06d..f7fa52b3 100644
--- a/haddock-api/src/Haddock.hs
+++ b/haddock-api/src/Haddock.hs
@@ -27,9 +27,9 @@ module Haddock (
 
 import Data.Version
 import Haddock.Backends.Xhtml
+import Haddock.Backends.Xhtml.Meta
 import Haddock.Backends.Xhtml.Themes (getThemes)
 import Haddock.Backends.LaTeX
-import Haddock.Backends.Meta
 import Haddock.Backends.Hoogle
 import Haddock.Backends.Hyperlinker
 import Haddock.Interface
@@ -44,6 +44,7 @@ import Haddock.Utils
 import Control.Monad hiding (forM_)
 import Control.Applicative
 import Data.Foldable (forM_, foldl')
+import Data.Traversable (for)
 import Data.List (isPrefixOf)
 import Control.Exception
 import Data.Maybe
@@ -67,6 +68,7 @@ import Paths_haddock_api (getDataDir)
 import System.Directory (doesDirectoryExist)
 #endif
 
+import Text.ParserCombinators.ReadP (readP_to_S)
 import GHC hiding (verbosity)
 import Config
 import DynFlags hiding (projectVersion, verbosity)
@@ -295,31 +297,52 @@ render dflags flags qual ifaces installedIfaces extSrcMap = do
 
     sourceUrls' = (srcBase, srcModule', pkgSrcMap', pkgSrcLMap')
 
+    installedMap :: Map Module InstalledInterface
+    installedMap = Map.fromList [ (unwire (instMod iface), iface) | iface <- installedIfaces ]
+
+    -- The user gives use base-4.9.0.0, but the InstalledInterface
+    -- records the *wired in* identity base.  So untranslate it
+    -- so that we can service the request.
+    unwire :: Module -> Module
+    unwire m = m { moduleUnitId = unwireUnitId dflags (moduleUnitId m) }
+
+  reexportedIfaces <- concat `fmap` (for (reexportFlags flags) $ \mod_str -> do
+    let warn = hPutStrLn stderr . ("Warning: " ++)
+    case readP_to_S parseModuleId mod_str of
+      [(m, "")]
+        | Just iface <- Map.lookup m installedMap
+        -> return [iface]
+        | otherwise
+        -> warn ("Cannot find reexported module '" ++ mod_str ++ "'") >> return []
+      _ -> warn ("Cannot parse reexported module flag '" ++ mod_str ++ "'") >> return [])
+
   libDir   <- getHaddockLibDir flags
   prologue <- getPrologue dflags' flags
   themes   <- getThemes libDir flags >>= either bye return
 
+  let withQuickjump = Flag_QuickJumpIndex `elem` flags
+
   when (Flag_GenIndex `elem` flags) $ do
     ppHtmlIndex odir title pkgStr
                 themes opt_mathjax opt_contents_url sourceUrls' opt_wiki_urls
                 allVisibleIfaces pretty
-    copyHtmlBits odir libDir themes
+    copyHtmlBits odir libDir themes withQuickjump
 
   when (Flag_GenContents `elem` flags) $ do
     ppHtmlContents dflags' odir title pkgStr
                    themes opt_mathjax opt_index_url sourceUrls' opt_wiki_urls
                    allVisibleIfaces True prologue pretty
                    (makeContentsQual qual)
-    copyHtmlBits odir libDir themes
+    copyHtmlBits odir libDir themes withQuickjump
 
   when (Flag_Html `elem` flags) $ do
-    ppHtml dflags' title pkgStr visibleIfaces odir
+    ppHtml dflags' title pkgStr visibleIfaces reexportedIfaces odir
                 prologue
                 themes opt_mathjax sourceUrls' opt_wiki_urls
                 opt_contents_url opt_index_url unicode qual
-                pretty
-    copyHtmlBits odir libDir themes
-    writeHaddockMeta odir
+                pretty withQuickjump
+    copyHtmlBits odir libDir themes withQuickjump
+    writeHaddockMeta odir withQuickjump
 
   -- TODO: we throw away Meta for both Hoogle and LaTeX right now,
   -- might want to fix that if/when these two get some work on them
diff --git a/haddock-api/src/Haddock/Backends/Meta.hs b/haddock-api/src/Haddock/Backends/Meta.hs
deleted file mode 100644
index c62c1ae8..00000000
--- a/haddock-api/src/Haddock/Backends/Meta.hs
+++ /dev/null
@@ -1,22 +0,0 @@
-module Haddock.Backends.Meta where
-
-import Haddock.Utils.Json
-import Haddock.Version
-
-import Data.ByteString.Builder (hPutBuilder)
-import System.FilePath ((</>))
-import System.IO (withFile, IOMode (WriteMode))
-
--- | Writes a json encoded file containing additional
--- information about the generated documentation. This
--- is useful for external tools (e.g. hackage).
-writeHaddockMeta :: FilePath -> IO ()
-writeHaddockMeta odir = do
-  let
-    meta_json :: Value
-    meta_json = object [
-        "haddock_version" .= String projectVersion
-      ]
-
-  withFile (odir </> "meta.json") WriteMode $ \h ->
-    hPutBuilder h (encodeToBuilder meta_json)
\ No newline at end of file
diff --git a/haddock-api/src/Haddock/Backends/Xhtml.hs b/haddock-api/src/Haddock/Backends/Xhtml.hs
index 4055b1d6..55175163 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml.hs
@@ -37,7 +37,7 @@ import Haddock.GhcUtils
 
 import Control.Monad         ( when, unless )
 import Data.Char             ( toUpper, isSpace )
-import Data.List             ( sortBy, intercalate, isPrefixOf, intersperse )
+import Data.List             ( sortBy, isPrefixOf, intercalate, intersperse )
 import Data.Maybe
 import System.FilePath hiding ( (</>) )
 import System.Directory
@@ -49,17 +49,16 @@ import Data.Ord              ( comparing )
 import DynFlags (Language(..))
 import GHC hiding ( NoLink, moduleInfo,LexicalFixity(..) )
 import Name
-import Module
 
 --------------------------------------------------------------------------------
 -- * Generating HTML documentation
 --------------------------------------------------------------------------------
 
-
 ppHtml :: DynFlags
        -> String                       -- ^ Title
        -> Maybe String                 -- ^ Package
        -> [Interface]
+       -> [InstalledInterface]         -- ^ Reexported interfaces
        -> FilePath                     -- ^ Destination directory
        -> Maybe (MDoc GHC.RdrName)     -- ^ Prologue text, maybe
        -> Themes                       -- ^ Themes
@@ -71,12 +70,13 @@ ppHtml :: DynFlags
        -> Bool                         -- ^ Whether to use unicode in output (--use-unicode)
        -> QualOption                   -- ^ How to qualify names
        -> Bool                         -- ^ Output pretty html (newlines and indenting)
+       -> Bool                         -- ^ Also write Quickjump index
        -> IO ()
 
-ppHtml dflags doctitle maybe_package ifaces odir prologue
+ppHtml dflags doctitle maybe_package ifaces reexported_ifaces odir prologue
         themes maybe_mathjax_url maybe_source_url maybe_wiki_url
         maybe_contents_url maybe_index_url unicode
-        qual debug =  do
+        qual debug withQuickjump =  do
   let
     visible_ifaces = filter visible ifaces
     visible i = OptHide `notElem` ifaceOptions i
@@ -84,32 +84,34 @@ ppHtml dflags doctitle maybe_package ifaces odir prologue
   when (isNothing maybe_contents_url) $
     ppHtmlContents dflags odir doctitle maybe_package
         themes maybe_mathjax_url maybe_index_url maybe_source_url maybe_wiki_url
-        (map toInstalledIface visible_ifaces)
+        (map toInstalledIface visible_ifaces ++ reexported_ifaces)
         False -- we don't want to display the packages in a single-package contents
         prologue debug (makeContentsQual qual)
 
   when (isNothing maybe_index_url) $ do
     ppHtmlIndex odir doctitle maybe_package
       themes maybe_mathjax_url maybe_contents_url maybe_source_url maybe_wiki_url
-      (map toInstalledIface visible_ifaces) debug
-    ppJsonIndex odir maybe_source_url maybe_wiki_url unicode qual
-      visible_ifaces
+      (map toInstalledIface visible_ifaces ++ reexported_ifaces) debug
+
+    when withQuickjump $
+      ppJsonIndex odir maybe_source_url maybe_wiki_url unicode qual
+        visible_ifaces
 
   mapM_ (ppHtmlModule odir doctitle themes
            maybe_mathjax_url maybe_source_url maybe_wiki_url
            maybe_contents_url maybe_index_url unicode qual debug) visible_ifaces
 
 
-copyHtmlBits :: FilePath -> FilePath -> Themes -> IO ()
-copyHtmlBits odir libdir themes = do
+copyHtmlBits :: FilePath -> FilePath -> Themes -> Bool -> IO ()
+copyHtmlBits odir libdir themes withQuickjump = do
   let
     libhtmldir = joinPath [libdir, "html"]
     copyCssFile f = copyFile f (combine odir (takeFileName f))
     copyLibFile f = copyFile (joinPath [libhtmldir, f]) (joinPath [odir, f])
   mapM_ copyCssFile (cssFiles themes)
-  copyCssFile (joinPath [libhtmldir, quickJumpCssFile])
   copyLibFile haddockJsFile
-  copyLibFile jsQuickJumpFile
+  copyCssFile (joinPath [libhtmldir, quickJumpCssFile])
+  when withQuickjump (copyLibFile jsQuickJumpFile)
   return ()
 
 
@@ -306,33 +308,35 @@ mkNodeList qual ss p ts = case ts of
 
 
 mkNode :: Qualification -> [String] -> String -> ModuleTree -> Html
-mkNode qual ss p (Node s leaf pkg srcPkg short ts) =
+mkNode qual ss p (Node s leaf _pkg srcPkg short ts) =
   htmlModule <+> shortDescr +++ htmlPkg +++ subtree
   where
     modAttrs = case (ts, leaf) of
-      (_:_, False) -> collapseControl p True "module"
+      (_:_, Nothing) -> collapseControl p "module"
       (_,   _    ) -> [theclass "module"]
 
     cBtn = case (ts, leaf) of
-      (_:_, True) -> thespan ! collapseControl p True "" << spaceHtml
+      (_:_, Just _) -> thespan ! collapseControl p "" << spaceHtml
       (_,   _   ) -> noHtml
       -- We only need an explicit collapser button when the module name
       -- is also a leaf, and so is a link to a module page. Indeed, the
       -- spaceHtml is a minor hack and does upset the layout a fraction.
 
     htmlModule = thespan ! modAttrs << (cBtn +++
-      if leaf
-        then ppModule (mkModule (stringToUnitId (fromMaybe "" pkg))
-                                       (mkModuleName mdl))
-        else toHtml s
+      case leaf of
+        Just m -> ppModule m
+        Nothing -> toHtml s
       )
 
-    mdl = intercalate "." (reverse (s:ss))
-
     shortDescr = maybe noHtml (origDocToHtml qual) short
     htmlPkg = maybe noHtml (thespan ! [theclass "package"] <<) srcPkg
 
-    subtree = mkNodeList qual (s:ss) p ts ! collapseSection p True ""
+    subtree =
+      if null ts then noHtml else
+      collapseDetails p DetailsOpen (
+        thesummary ! [ theclass "hide-when-js-enabled" ] << "Submodules" +++
+        mkNodeList qual (s:ss) p ts
+      )
 
 
 
@@ -587,10 +591,12 @@ ifaceToHtml maybe_source_url maybe_wiki_url iface unicode qual
       | no_doc_at_all = noHtml
       | otherwise
       = divSynopsis $
-            paragraph ! collapseControl "syn" False "caption" << "Synopsis" +++
-            shortDeclList (
-                mapMaybe (processExport True linksInfo unicode qual) exports
-            ) ! (collapseSection "syn" False "" ++ collapseToggle "syn")
+            collapseDetails "syn" DetailsClosed (
+              thesummary << "Synopsis" +++
+              shortDeclList (
+                  mapMaybe (processExport True linksInfo unicode qual) exports
+              ) ! collapseToggle "syn" ""
+            )
 
         -- if the documentation doesn't begin with a section header, then
         -- add one ("Documentation").
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/DocMarkup.hs b/haddock-api/src/Haddock/Backends/Xhtml/DocMarkup.hs
index 18c8a0ff..e63667b0 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/DocMarkup.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/DocMarkup.hs
@@ -165,9 +165,9 @@ hackMarkup fmt' h' =
       UntouchedDoc d -> (markup fmt $ _doc d, [_meta d])
       CollapsingHeader (Header lvl titl) par n nm ->
         let id_ = makeAnchorId $ "ch:" ++ fromMaybe "noid:" nm ++ show n
-            expanded = False
-            col' = collapseControl id_ expanded "caption"
-            instTable = (thediv ! collapseSection id_ expanded [] <<)
+            col' = collapseControl id_ "caption"
+            summary = thesummary ! [ theclass "hide-when-js-enabled" ] << "Expand"
+            instTable contents = collapseDetails id_ DetailsClosed (summary +++ contents)
             lvs = zip [1 .. ] [h1, h2, h3, h4, h5, h6]
             getHeader = fromMaybe caption (lookup lvl lvs)
             subCaption = getHeader ! col' << markup fmt titl
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs b/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
index 6993c7f6..e020b909 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
@@ -199,10 +199,10 @@ subInstances :: Qualification
              -> [(SubDecl,Located DocName)] -> Html
 subInstances qual nm lnks splice = maybe noHtml wrap . instTable
   where
-    wrap = (subSection <<) . (subCaption +++)
-    instTable = fmap (thediv ! collapseSection id_ True [] <<) . subTableSrc qual lnks splice
+    wrap contents = subSection (collapseDetails id_ DetailsOpen (summary +++ contents))
+    instTable = subTableSrc qual lnks splice
     subSection = thediv ! [theclass "subs instances"]
-    subCaption = paragraph ! collapseControl id_ True "caption" << "Instances"
+    summary = thesummary << "Instances"
     id_ = makeAnchorId $ "i:" ++ nm
 
 
@@ -212,7 +212,7 @@ subOrphanInstances :: Qualification
 subOrphanInstances qual lnks splice  = maybe noHtml wrap . instTable
   where
     wrap = ((h1 << "Orphan instances") +++)
-    instTable = fmap (thediv ! collapseSection id_ True [] <<) . subTableSrc qual lnks splice
+    instTable = fmap (thediv ! [ identifier ("section." ++ id_) ] <<) . subTableSrc qual lnks splice
     id_ = makeAnchorId $ "orphans"
 
 
@@ -222,7 +222,7 @@ subInstHead :: String -- ^ Instance unique id (for anchor generation)
 subInstHead iid hdr =
     expander noHtml <+> hdr
   where
-    expander = thespan ! collapseControl (instAnchorId iid) False "instance"
+    expander = thespan ! collapseControl (instAnchorId iid) "instance"
 
 
 subInstDetails :: String -- ^ Instance unique id (for anchor generation)
@@ -241,7 +241,9 @@ subFamInstDetails iid fi =
 subInstSection :: String -- ^ Instance unique id (for anchor generation)
                -> Html
                -> Html
-subInstSection iid = thediv ! collapseSection (instAnchorId iid) False "inst-details"
+subInstSection iid contents = collapseDetails (instAnchorId iid) DetailsClosed (summary +++ contents)
+  where
+    summary = thesummary ! [ theclass "hide-when-js-enabled" ] << "Instance details"
 
 instAnchorId :: String -> String
 instAnchorId iid = makeAnchorId $ "i:" ++ iid
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Meta.hs b/haddock-api/src/Haddock/Backends/Xhtml/Meta.hs
new file mode 100644
index 00000000..621bdd41
--- /dev/null
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Meta.hs
@@ -0,0 +1,28 @@
+module Haddock.Backends.Xhtml.Meta where
+
+import Haddock.Utils.Json
+import Haddock.Version
+
+import Data.ByteString.Builder (hPutBuilder)
+import System.FilePath ((</>))
+import System.IO (withFile, IOMode (WriteMode))
+
+-- | Everytime breaking changes to the Quckjump api
+-- happen this needs to be modified.
+quickjumpVersion :: Int
+quickjumpVersion = 1
+
+-- | Writes a json encoded file containing additional
+-- information about the generated documentation. This
+-- is useful for external tools (e.g. hackage).
+writeHaddockMeta :: FilePath -> Bool -> IO ()
+writeHaddockMeta odir withQuickjump = do
+  let
+    meta_json :: Value
+    meta_json = object (concat [
+        [ "haddock_version"   .= String projectVersion ]
+      , [ "quickjump_version" .= quickjumpVersion | withQuickjump ]
+      ])
+
+  withFile (odir </> "meta.json") WriteMode $ \h ->
+    hPutBuilder h (encodeToBuilder meta_json)
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs b/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
index a8b4a4ec..a75c4b9a 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
@@ -25,7 +25,8 @@ module Haddock.Backends.Xhtml.Utils (
 
   hsep, vcat,
 
-  collapseSection, collapseToggle, collapseControl,
+  DetailsState(..), collapseDetails, thesummary,
+  collapseToggle, collapseControl,
 ) where
 
 
@@ -213,26 +214,22 @@ groupId g = makeAnchorId ("g:" ++ g)
 -- A section of HTML which is collapsible.
 --
 
--- | Attributes for an area that can be collapsed
-collapseSection :: String -> Bool -> String -> [HtmlAttr]
-collapseSection id_ state classes = [ identifier sid, theclass cs ]
-  where cs = unwords (words classes ++ [pick state "show" "hide"])
-        sid = "section." ++ id_
+data DetailsState = DetailsOpen | DetailsClosed
+
+collapseDetails :: String -> DetailsState -> Html -> Html
+collapseDetails id_ state = tag "details" ! (identifier id_ : openAttrs)
+  where openAttrs = case state of { DetailsOpen -> [emptyAttr "open"]; DetailsClosed -> [] }
+
+thesummary :: Html -> Html
+thesummary = tag "summary"
 
 -- | Attributes for an area that toggles a collapsed area
-collapseToggle :: String -> [HtmlAttr]
-collapseToggle id_ = [ strAttr "onclick" js ]
-  where js = "toggleSection('" ++ id_ ++ "')";
+collapseToggle :: String -> String -> [HtmlAttr]
+collapseToggle id_ classes = [ theclass cs, strAttr "data-details-id" id_ ]
+  where cs = unwords (words classes ++ ["details-toggle"])
 
 -- | Attributes for an area that toggles a collapsed area,
 -- and displays a control.
-collapseControl :: String -> Bool -> String -> [HtmlAttr]
-collapseControl id_ state classes =
-  [ identifier cid, theclass cs ] ++ collapseToggle id_
-  where cs = unwords (words classes ++ [pick state "collapser" "expander"])
-        cid = "control." ++ id_
-
-
-pick :: Bool -> a -> a -> a
-pick True  t _ = t
-pick False _ f = f
+collapseControl :: String -> String -> [HtmlAttr]
+collapseControl id_ classes = collapseToggle id_ cs
+  where cs = unwords (words classes ++ ["details-toggle-control"])
\ No newline at end of file
diff --git a/haddock-api/src/Haddock/InterfaceFile.hs b/haddock-api/src/Haddock/InterfaceFile.hs
index 59582fd2..76bcb4ae 100644
--- a/haddock-api/src/Haddock/InterfaceFile.hs
+++ b/haddock-api/src/Haddock/InterfaceFile.hs
@@ -158,7 +158,7 @@ writeInterfaceFile filename iface = do
 type NameCacheAccessor m = (m NameCache, NameCache -> m ())
 
 
-nameCacheFromGhc :: NameCacheAccessor Ghc
+nameCacheFromGhc :: forall m. (GhcMonad m, MonadIO m) => NameCacheAccessor m
 nameCacheFromGhc = ( read_from_session , write_to_session )
   where
     read_from_session = do
diff --git a/haddock-api/src/Haddock/ModuleTree.hs b/haddock-api/src/Haddock/ModuleTree.hs
index e6cf8201..a0be820a 100644
--- a/haddock-api/src/Haddock/ModuleTree.hs
+++ b/haddock-api/src/Haddock/ModuleTree.hs
@@ -20,39 +20,41 @@ import DynFlags      ( DynFlags )
 import Packages      ( lookupPackage )
 import PackageConfig ( sourcePackageIdString )
 
+import qualified Control.Applicative as A
 
-data ModuleTree = Node String Bool (Maybe String) (Maybe String) (Maybe (MDoc Name)) [ModuleTree]
+
+data ModuleTree = Node String (Maybe Module) (Maybe String) (Maybe String) (Maybe (MDoc Name)) [ModuleTree]
 
 
 mkModuleTree :: DynFlags -> Bool -> [(Module, Maybe (MDoc Name))] -> [ModuleTree]
 mkModuleTree dflags showPkgs mods =
-  foldr fn [] [ (splitModule mdl, modPkg mdl, modSrcPkg mdl, short) | (mdl, short) <- mods ]
+  foldr fn [] [ (mdl, splitModule mdl, modPkg mdl, modSrcPkg mdl, short) | (mdl, short) <- mods ]
   where
     modPkg mod_ | showPkgs = Just (unitIdString (moduleUnitId mod_))
                 | otherwise = Nothing
     modSrcPkg mod_ | showPkgs = fmap sourcePackageIdString
                                      (lookupPackage dflags (moduleUnitId mod_))
                    | otherwise = Nothing
-    fn (mod_,pkg,srcPkg,short) = addToTrees mod_ pkg srcPkg short
+    fn (m,mod_,pkg,srcPkg,short) = addToTrees mod_ m pkg srcPkg short
 
 
-addToTrees :: [String] -> Maybe String -> Maybe String -> Maybe (MDoc Name) -> [ModuleTree] -> [ModuleTree]
-addToTrees [] _ _ _ ts = ts
-addToTrees ss pkg srcPkg short [] = mkSubTree ss pkg srcPkg short
-addToTrees (s1:ss) pkg srcPkg short (t@(Node s2 leaf node_pkg node_srcPkg node_short subs) : ts)
-  | s1 >  s2  = t : addToTrees (s1:ss) pkg srcPkg short ts
-  | s1 == s2  = Node s2 (leaf || null ss) this_pkg this_srcPkg this_short (addToTrees ss pkg srcPkg short subs) : ts
-  | otherwise = mkSubTree (s1:ss) pkg srcPkg short ++ t : ts
+addToTrees :: [String] -> Module -> Maybe String -> Maybe String -> Maybe (MDoc Name) -> [ModuleTree] -> [ModuleTree]
+addToTrees [] _ _ _ _ ts = ts
+addToTrees ss m pkg srcPkg short [] = mkSubTree ss m pkg srcPkg short
+addToTrees (s1:ss) m pkg srcPkg short (t@(Node s2 leaf node_pkg node_srcPkg node_short subs) : ts)
+  | s1 >  s2  = t : addToTrees (s1:ss) m pkg srcPkg short ts
+  | s1 == s2  = Node s2 (leaf A.<|> (if null ss then Just m else Nothing)) this_pkg this_srcPkg this_short (addToTrees ss m pkg srcPkg short subs) : ts
+  | otherwise = mkSubTree (s1:ss) m pkg srcPkg short ++ t : ts
  where
   this_pkg = if null ss then pkg else node_pkg
   this_srcPkg = if null ss then srcPkg else node_srcPkg
   this_short = if null ss then short else node_short
 
 
-mkSubTree :: [String] -> Maybe String -> Maybe String -> Maybe (MDoc Name) -> [ModuleTree]
-mkSubTree []     _   _      _     = []
-mkSubTree [s]    pkg srcPkg short = [Node s True pkg srcPkg short []]
-mkSubTree (s:ss) pkg srcPkg short = [Node s (null ss) Nothing Nothing Nothing (mkSubTree ss pkg srcPkg short)]
+mkSubTree :: [String] -> Module -> Maybe String -> Maybe String -> Maybe (MDoc Name) -> [ModuleTree]
+mkSubTree []     _ _   _      _     = []
+mkSubTree [s]    m pkg srcPkg short = [Node s (Just m) pkg srcPkg short []]
+mkSubTree (s:s':ss) m pkg srcPkg short = [Node s Nothing Nothing Nothing Nothing (mkSubTree (s':ss) m pkg srcPkg short)]
 
 
 splitModule :: Module -> [String]
diff --git a/haddock-api/src/Haddock/Options.hs b/haddock-api/src/Haddock/Options.hs
index d73d1a79..caf1fefe 100644
--- a/haddock-api/src/Haddock/Options.hs
+++ b/haddock-api/src/Haddock/Options.hs
@@ -31,6 +31,7 @@ module Haddock.Options (
   qualification,
   verbosity,
   ghcFlags,
+  reexportFlags,
   readIfaceArgs,
   optPackageName,
   optPackageVersion
@@ -70,6 +71,7 @@ data Flag
   | Flag_WikiEntityURL String
   | Flag_LaTeX
   | Flag_LaTeXStyle String
+  | Flag_QuickJumpIndex
   | Flag_HyperlinkedSource
   | Flag_SourceCss String
   | Flag_Mathjax String
@@ -98,6 +100,7 @@ data Flag
   | Flag_NoPrintMissingDocs
   | Flag_PackageName String
   | Flag_PackageVersion String
+  | Flag_Reexport String
   deriving (Eq, Show)
 
 
@@ -126,6 +129,8 @@ options backwardsCompat =
     Option ['U'] ["use-unicode"] (NoArg Flag_UseUnicode) "use Unicode in HTML output",
     Option []  ["hoogle"]     (NoArg Flag_Hoogle)
       "output for Hoogle; you may want --package-name and --package-version too",
+    Option [] ["quickjump"] (NoArg Flag_QuickJumpIndex)
+      "generate an index for interactive documentation navigation",
     Option [] ["hyperlinked-source"] (NoArg Flag_HyperlinkedSource)
       "generate highlighted and hyperlinked source code (for use with --html)",
     Option [] ["source-css"] (ReqArg Flag_SourceCss "FILE")
@@ -194,6 +199,8 @@ options backwardsCompat =
       "generate html with newlines and indenting (for use with --html)",
     Option [] ["no-print-missing-docs"] (NoArg Flag_NoPrintMissingDocs)
       "don't print information about any undocumented entities",
+    Option []  ["reexport"] (ReqArg Flag_Reexport "MOD")
+      "reexport the module MOD, adding it to the index",
     Option [] ["package-name"] (ReqArg Flag_PackageName "NAME")
       "name of the package being documented",
     Option [] ["package-version"] (ReqArg Flag_PackageVersion "VERSION")
@@ -310,6 +317,9 @@ verbosity flags =
 ghcFlags :: [Flag] -> [String]
 ghcFlags flags = [ option | Flag_OptGhc option <- flags ]
 
+reexportFlags :: [Flag] -> [String]
+reexportFlags flags = [ option | Flag_Reexport option <- flags ]
+
 
 readIfaceArgs :: [Flag] -> [(DocPaths, FilePath)]
 readIfaceArgs flags = [ parseIfaceOption s | Flag_ReadInterface s <- flags ]