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

10 files changed, 200 insertions, 93 deletions

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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