From 943c5b7880cbfa8c90a0776dd539ae1e89f46d35 Mon Sep 17 00:00:00 2001 From: Simon Hengel Date: Mon, 15 Oct 2012 11:38:42 +0200 Subject: Move resources to /resources directory --- resources/html/haddock-util.js | 344 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 344 insertions(+) create mode 100644 resources/html/haddock-util.js (limited to 'resources/html/haddock-util.js') diff --git a/resources/html/haddock-util.js b/resources/html/haddock-util.js new file mode 100644 index 00000000..9a6fccf7 --- /dev/null +++ b/resources/html/haddock-util.js @@ -0,0 +1,344 @@ +// Haddock JavaScript utilities + +var rspace = /\s\s+/g, + rtrim = /^\s+|\s+$/g; + +function spaced(s) { return (" " + s + " ").replace(rspace, " "); } +function trim(s) { return s.replace(rtrim, ""); } + +function hasClass(elem, value) { + var className = spaced(elem.className || ""); + return className.indexOf( " " + value + " " ) >= 0; +} + +function addClass(elem, value) { + var className = spaced(elem.className || ""); + if ( className.indexOf( " " + value + " " ) < 0 ) { + elem.className = trim(className + " " + value); + } +} + +function removeClass(elem, value) { + var className = spaced(elem.className || ""); + className = className.replace(" " + value + " ", " "); + elem.className = trim(className); +} + +function toggleClass(elem, valueOn, valueOff, bool) { + if (bool == null) { bool = ! hasClass(elem, valueOn); } + if (bool) { + removeClass(elem, valueOff); + addClass(elem, valueOn); + } + else { + removeClass(elem, valueOn); + addClass(elem, valueOff); + } + return bool; +} + + +function makeClassToggle(valueOn, valueOff) +{ + return function(elem, bool) { + return toggleClass(elem, valueOn, valueOff, bool); + } +} + +toggleShow = makeClassToggle("show", "hide"); +toggleCollapser = makeClassToggle("collapser", "expander"); + +function toggleSection(id) +{ + var b = toggleShow(document.getElementById("section." + id)); + toggleCollapser(document.getElementById("control." + id), b); + rememberCollapsed(id, b); + return b; +} + +var collapsed = {}; +function rememberCollapsed(id, b) +{ + if(b) + delete collapsed[id] + else + collapsed[id] = null; + + var sections = []; + for(var 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=" + escape(sections.join('+')); +} + +function restoreCollapsed() +{ + var cookie = getCookie("collapsed"); + if(!cookie) + return; + + var ids = cookie.split('+'); + for(var i in ids) + { + if(document.getElementById("section." + ids[i])) + toggleSection(ids[i]); + } +} + +function setCookie(name, value) { + document.cookie = name + "=" + escape(value) + ";path=/;"; +} + +function clearCookie(name) { + document.cookie = name + "=;path=/;expires=Thu, 01-Jan-1970 00:00:01 GMT;"; +} + +function getCookie(name) { + var nameEQ = name + "="; + var ca = document.cookie.split(';'); + for(var i=0;i < ca.length;i++) { + var c = ca[i]; + while (c.charAt(0)==' ') c = c.substring(1,c.length); + if (c.indexOf(nameEQ) == 0) { + return unescape(c.substring(nameEQ.length,c.length)); + } + } + return null; +} + + + +var max_results = 75; // 50 is not enough to search for map in the base libraries +var shown_range = null; +var last_search = null; + +function quick_search() +{ + perform_search(false); +} + +function full_search() +{ + perform_search(true); +} + + +function perform_search(full) +{ + var text = document.getElementById("searchbox").value.toLowerCase(); + if (text == last_search && !full) return; + last_search = text; + + var table = document.getElementById("indexlist"); + var status = document.getElementById("searchmsg"); + var children = table.firstChild.childNodes; + + // first figure out the first node with the prefix + var first = bisect(-1); + var last = (first == -1 ? -1 : bisect(1)); + + if (first == -1) + { + table.className = ""; + status.innerHTML = "No results found, displaying all"; + } + else if (first == 0 && last == children.length - 1) + { + table.className = ""; + status.innerHTML = ""; + } + else if (last - first >= max_results && !full) + { + table.className = ""; + status.innerHTML = "More than " + max_results + ", press Search to display"; + } + else + { + // decide what you need to clear/show + if (shown_range) + setclass(shown_range[0], shown_range[1], "indexrow"); + setclass(first, last, "indexshow"); + shown_range = [first, last]; + table.className = "indexsearch"; + status.innerHTML = ""; + } + + + function setclass(first, last, status) + { + for (var i = first; i <= last; i++) + { + children[i].className = status; + } + } + + + // do a binary search, treating 0 as ... + // return either -1 (no 0's found) or location of most far match + function bisect(dir) + { + var first = 0, finish = children.length - 1; + var mid, success = false; + + while (finish - first > 3) + { + mid = Math.floor((finish + first) / 2); + + var i = checkitem(mid); + if (i == 0) i = dir; + if (i == -1) + finish = mid; + else + first = mid; + } + var a = (dir == 1 ? first : finish); + var b = (dir == 1 ? finish : first); + for (var i = b; i != a - dir; i -= dir) + { + if (checkitem(i) == 0) return i; + } + return -1; + } + + + // from an index, decide what the result is + // 0 = match, -1 is lower, 1 is higher + function checkitem(i) + { + var s = getitem(i).toLowerCase().substr(0, text.length); + if (s == text) return 0; + else return (s > text ? -1 : 1); + } + + + // from an index, get its string + // this abstracts over alternates + function getitem(i) + { + for ( ; i >= 0; i--) + { + var s = children[i].firstChild.firstChild.data; + if (s.indexOf(' ') == -1) + return s; + } + return ""; // should never be reached + } +} + +function setSynopsis(filename) { + if (parent.window.synopsis) { + if (parent.window.synopsis.location.replace) { + // In Firefox this avoids adding the change to the history. + parent.window.synopsis.location.replace(filename); + } else { + parent.window.synopsis.location = filename; + } + } +} + +function addMenuItem(html) { + var menu = document.getElementById("page-menu"); + if (menu) { + var btn = menu.firstChild.cloneNode(false); + btn.innerHTML = html; + menu.appendChild(btn); + } +} + +function adjustForFrames() { + var bodyCls; + + if (parent.location.href == window.location.href) { + // not in frames, so add Frames button + addMenuItem("Frames"); + bodyCls = "no-frame"; + } + else { + bodyCls = "in-frame"; + } + addClass(document.body, bodyCls); +} + +function reframe() { + setCookie("haddock-reframe", document.URL); + window.location = "frames.html"; +} + +function postReframe() { + var s = getCookie("haddock-reframe"); + if (s) { + parent.window.main.location = s; + clearCookie("haddock-reframe"); + } +} + +function styles() { + var i, a, es = document.getElementsByTagName("link"), rs = []; + for (i = 0; a = es[i]; i++) { + if(a.rel.indexOf("style") != -1 && a.title) { + rs.push(a); + } + } + return rs; +} + +function addStyleMenu() { + var as = styles(); + var i, a, btns = ""; + for(i=0; a = as[i]; i++) { + btns += "
  • " + + a.title + "
    • " + } + if (as.length > 1) { + var h = "
    " + + "Style ▾" + + "" + + "
    "; + addMenuItem(h); + } +} + +function setActiveStyleSheet(title) { + var as = styles(); + var i, a, found; + for(i=0; a = as[i]; i++) { + a.disabled = true; + // need to do this always, some browsers are edge triggered + if(a.title == title) { + found = a; + } + } + if (found) { + found.disabled = false; + setCookie("haddock-style", title); + } + else { + as[0].disabled = false; + clearCookie("haddock-style"); + } + styleMenu(false); +} + +function resetStyle() { + var s = getCookie("haddock-style"); + if (s) setActiveStyleSheet(s); +} + + +function styleMenu(show) { + var m = document.getElementById('style-menu'); + if (m) toggleShow(m, show); +} + + +function pageLoad() { + addStyleMenu(); + adjustForFrames(); + resetStyle(); + restoreCollapsed(); +} + -- cgit v1.2.3