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|
var resizePackagesNav;
var classesNav;
var devdocNav;
var sidenav;
var content;
var HEADER_HEIGHT = 117;
var cookie_namespace = 'android_developer';
var NAV_PREF_TREE = "tree";
var NAV_PREF_PANELS = "panels";
var nav_pref;
var toRoot;
var isMobile = false; // true if mobile, so we can adjust some layout
var isIE6 = false; // true if IE6
// TODO: use $(document).ready instead
function addLoadEvent(newfun) {
var current = window.onload;
if (typeof window.onload != 'function') {
window.onload = newfun;
} else {
window.onload = function() {
current();
newfun();
}
}
}
var agent = navigator['userAgent'].toLowerCase();
// If a mobile phone, set flag and do mobile setup
if ((agent.indexOf("mobile") != -1) || // android, iphone, ipod
(agent.indexOf("blackberry") != -1) ||
(agent.indexOf("webos") != -1) ||
(agent.indexOf("mini") != -1)) { // opera mini browsers
isMobile = true;
addLoadEvent(mobileSetup);
// If not a mobile browser, set the onresize event for IE6, and others
} else if (agent.indexOf("msie 6") != -1) {
isIE6 = true;
addLoadEvent(function() {
window.onresize = resizeAll;
});
} else {
addLoadEvent(function() {
window.onresize = resizeHeight;
});
}
function mobileSetup() {
$("body").css({'overflow':'auto'});
$("html").css({'overflow':'auto'});
$("#body-content").css({'position':'relative', 'top':'0'});
$("#doc-content").css({'overflow':'visible', 'border-left':'3px solid #DDD'});
$("#side-nav").css({'padding':'0'});
$("#nav-tree").css({'overflow-y': 'auto'});
}
/* loads the lists.js file to the page.
Loading this in the head was slowing page load time */
addLoadEvent( function() {
var lists = document.createElement("script");
lists.setAttribute("type","text/javascript");
lists.setAttribute("src", toRoot+"reference/lists.js");
document.getElementsByTagName("head")[0].appendChild(lists);
} );
addLoadEvent( function() {
$("pre:not(.no-pretty-print)").addClass("prettyprint");
prettyPrint();
} );
function setToRoot(root) {
toRoot = root;
// note: toRoot also used by carousel.js
}
function restoreWidth(navWidth) {
var windowWidth = $(window).width() + "px";
content.css({marginLeft:parseInt(navWidth) + 6 + "px"}); //account for 6px-wide handle-bar
if (isIE6) {
content.css({width:parseInt(windowWidth) - parseInt(navWidth) - 6 + "px"}); // necessary in order for scrollbars to be visible
}
sidenav.css({width:navWidth});
resizePackagesNav.css({width:navWidth});
classesNav.css({width:navWidth});
$("#packages-nav").css({width:navWidth});
}
function restoreHeight(packageHeight) {
var windowHeight = ($(window).height() - HEADER_HEIGHT);
var swapperHeight = windowHeight - 13;
$("#swapper").css({height:swapperHeight + "px"});
sidenav.css({height:windowHeight + "px"});
content.css({height:windowHeight + "px"});
resizePackagesNav.css({maxHeight:swapperHeight + "px", height:packageHeight});
classesNav.css({height:swapperHeight - parseInt(packageHeight) + "px"});
$("#packages-nav").css({height:parseInt(packageHeight) - 6 + "px"}); //move 6px to give space for the resize handle
devdocNav.css({height:sidenav.css("height")});
$("#nav-tree").css({height:swapperHeight + "px"});
}
function readCookie(cookie) {
var myCookie = cookie_namespace+"_"+cookie+"=";
if (document.cookie) {
var index = document.cookie.indexOf(myCookie);
if (index != -1) {
var valStart = index + myCookie.length;
var valEnd = document.cookie.indexOf(";", valStart);
if (valEnd == -1) {
valEnd = document.cookie.length;
}
var val = document.cookie.substring(valStart, valEnd);
return val;
}
}
return 0;
}
function writeCookie(cookie, val, section, expiration) {
if (val==undefined) return;
section = section == null ? "_" : "_"+section+"_";
if (expiration == null) {
var date = new Date();
date.setTime(date.getTime()+(10*365*24*60*60*1000)); // default expiration is one week
expiration = date.toGMTString();
}
document.cookie = cookie_namespace + section + cookie + "=" + val + "; expires=" + expiration+"; path=/";
}
function init() {
$("#side-nav").css({position:"absolute",left:0});
content = $("#doc-content");
resizePackagesNav = $("#resize-packages-nav");
classesNav = $("#classes-nav");
sidenav = $("#side-nav");
devdocNav = $("#devdoc-nav");
var cookiePath = "";
if (location.href.indexOf("/reference/") != -1) {
cookiePath = "reference_";
} else if (location.href.indexOf("/guide/") != -1) {
cookiePath = "guide_";
} else if (location.href.indexOf("/sdk/") != -1) {
cookiePath = "sdk_";
} else if ((location.href.indexOf("/resources/") != -1) ||
(location.href.indexOf("/training/") != -1)) {
cookiePath = "resources_";
}
if (!isMobile) {
$("#resize-packages-nav").resizable({handles: "s", resize: function(e, ui) { resizePackagesHeight(); } });
$("#side-nav").resizable({handles: "e", resize: function(e, ui) { resizeWidth(); } });
var cookieWidth = readCookie(cookiePath+'width');
var cookieHeight = readCookie(cookiePath+'height');
if (cookieWidth) {
restoreWidth(cookieWidth);
} else if ($("#side-nav").length) {
resizeWidth();
}
if (cookieHeight) {
restoreHeight(cookieHeight);
} else {
resizeHeight();
}
}
if (devdocNav.length) { // only dev guide, resources, and sdk
tryPopulateResourcesNav();
highlightNav(location.href);
}
}
function tryPopulateResourcesNav() {
var sampleList = $('#devdoc-nav-sample-list');
var articleList = $('#devdoc-nav-article-list');
var tutorialList = $('#devdoc-nav-tutorial-list');
var topicList = $('#devdoc-nav-topic-list');
if (!topicList.length || !ANDROID_TAGS || !ANDROID_RESOURCES)
return;
var topics = [];
for (var topic in ANDROID_TAGS['topic']) {
topics.push({name:topic,title:ANDROID_TAGS['topic'][topic]});
}
topics.sort(function(x,y){ return (x.title < y.title) ? -1 : 1; });
for (var i = 0; i < topics.length; i++) {
topicList.append(
$('<li>').append(
$('<a>')
.attr('href', toRoot + "resources/browser.html?tag=" + topics[i].name)
.append($('<span>')
.addClass('en')
.html(topics[i].title)
)
)
);
}
var _renderResourceList = function(tag, listNode) {
var resources = [];
var tags;
var resource;
var i, j;
for (i = 0; i < ANDROID_RESOURCES.length; i++) {
resource = ANDROID_RESOURCES[i];
tags = resource.tags || [];
var hasTag = false;
for (j = 0; j < tags.length; j++)
if (tags[j] == tag) {
hasTag = true;
break;
}
if (!hasTag)
continue;
resources.push(resource);
}
//resources.sort(function(x,y){ return (x.title.en < y.title.en) ? -1 : 1; });
for (i = 0; i < resources.length; i++) {
resource = resources[i];
var listItemNode = $('<li>').append(
$('<a>')
.attr('href', toRoot + "resources/" + resource.path)
.append($('<span>')
.addClass('en')
.html(resource.title.en)
)
);
tags = resource.tags || [];
for (j = 0; j < tags.length; j++) {
if (tags[j] == 'new') {
listItemNode.get(0).innerHTML += ' <span class="new">new!</span>';
break;
} else if (tags[j] == 'updated') {
listItemNode.get(0).innerHTML += ' <span class="new">updated!</span>';
break;
}
}
listNode.append(listItemNode);
}
};
_renderResourceList('sample', sampleList);
_renderResourceList('article', articleList);
_renderResourceList('tutorial', tutorialList);
}
function highlightNav(fullPageName) {
var lastSlashPos = fullPageName.lastIndexOf("/");
var firstSlashPos;
if (fullPageName.indexOf("/guide/") != -1) {
firstSlashPos = fullPageName.indexOf("/guide/");
} else if (fullPageName.indexOf("/sdk/") != -1) {
firstSlashPos = fullPageName.indexOf("/sdk/");
} else if (fullPageName.indexOf("/resources/") != -1) {
firstSlashPos = fullPageName.indexOf("/resources/");
} else if (fullPageName.indexOf("/training/") != -1) {
firstSlashPos = fullPageName.indexOf("/training/");
}
if (lastSlashPos == (fullPageName.length - 1)) { // if the url ends in slash (add 'index.html')
fullPageName = fullPageName + "index.html";
}
// get the path and page name from the URL (such as 'guide/topics/graphics/index.html')
var htmlPos = fullPageName.indexOf(".html");
var pathPageName = fullPageName.slice(firstSlashPos, htmlPos + 5); // +5 advances past ".html"
// find instances of the page name in the side nav
var link = $("#devdoc-nav a[href$='"+ pathPageName+"']");
// if there's no match, then let's backstep through the directory until we find an index.html
// page that matches our ancestor directories (only for dev guide and resources)
if ((link.length == 0) && ((fullPageName.indexOf("/guide/") != -1) ||
(fullPageName.indexOf("/resources/") != -1))) {
lastBackstep = pathPageName.lastIndexOf("/");
while (link.length == 0) {
backstepDirectory = pathPageName.lastIndexOf("/", lastBackstep);
link = $("#devdoc-nav a[href$='"+ pathPageName.slice(0, backstepDirectory +
1)+"index.html']");
lastBackstep = pathPageName.lastIndexOf("/", lastBackstep - 1);
if (lastBackstep == 0) break;
}
}
// add 'selected' to the <li> or <div> that wraps this <a>
link.parent().addClass('selected');
// if we're in a toggleable root link (<li class=toggle-list><div><a>)
if (link.parent().parent().hasClass('toggle-list')) {
toggle(link.parent().parent(), false); // open our own list
// then also check if we're in a third-level nested list that's toggleable
if (link.parent().parent().parent().is(':hidden')) {
toggle(link.parent().parent().parent().parent(), false); // open the super parent list
}
}
// if we're in a normal nav link (<li><a>) and the parent <ul> is hidden
else if (link.parent().parent().is(':hidden')) {
toggle(link.parent().parent().parent(), false); // open the parent list
// then also check if the parent list is also nested in a hidden list
if (link.parent().parent().parent().parent().is(':hidden')) {
toggle(link.parent().parent().parent().parent().parent(), false); // open the super parent list
}
}
}
/* Resize the height of the nav panels in the reference,
* and save the new size to a cookie */
function resizePackagesHeight() {
var windowHeight = ($(window).height() - HEADER_HEIGHT);
var swapperHeight = windowHeight - 13; // move 13px for swapper link at the bottom
resizePackagesNav.css({maxHeight:swapperHeight + "px"});
classesNav.css({height:swapperHeight - parseInt(resizePackagesNav.css("height")) + "px"});
$("#swapper").css({height:swapperHeight + "px"});
$("#packages-nav").css({height:parseInt(resizePackagesNav.css("height")) - 6 + "px"}); //move 6px for handle
var basePath = getBaseUri(location.pathname);
var section = basePath.substring(1,basePath.indexOf("/",1));
writeCookie("height", resizePackagesNav.css("height"), section, null);
}
/* Resize the height of the side-nav and doc-content divs,
* which creates the frame effect */
function resizeHeight() {
var docContent = $("#doc-content");
// Get the window height and always resize the doc-content and side-nav divs
var windowHeight = ($(window).height() - HEADER_HEIGHT);
docContent.css({height:windowHeight + "px"});
$("#side-nav").css({height:windowHeight + "px"});
var href = location.href;
// If in the reference docs, also resize the "swapper", "classes-nav", and "nav-tree" divs
if (href.indexOf("/reference/") != -1) {
var swapperHeight = windowHeight - 13;
$("#swapper").css({height:swapperHeight + "px"});
$("#classes-nav").css({height:swapperHeight - parseInt(resizePackagesNav.css("height")) + "px"});
$("#nav-tree").css({height:swapperHeight + "px"});
// Also resize the "devdoc-nav" div
} else if ($("#devdoc-nav").length) {
$("#devdoc-nav").css({height:sidenav.css("height")});
}
// Hide the "Go to top" link if there's no vertical scroll
if ( parseInt($("#jd-content").css("height")) <= parseInt(docContent.css("height")) ) {
$("a[href='#top']").css({'display':'none'});
} else {
$("a[href='#top']").css({'display':'inline'});
}
}
/* Resize the width of the "side-nav" and the left margin of the "doc-content" div,
* which creates the resizable side bar */
function resizeWidth() {
var windowWidth = $(window).width() + "px";
var sidenav = $("#side-nav");
if (sidenav.length) {
var sidenavWidth = sidenav.css("width");
} else {
var sidenavWidth = 0;
}
content.css({marginLeft:parseInt(sidenavWidth) + 6 + "px"}); //account for 6px-wide handle-bar
if (isIE6) {
content.css({width:parseInt(windowWidth) - parseInt(sidenavWidth) - 6 + "px"}); // necessary in order to for scrollbars to be visible
}
resizePackagesNav.css({width:sidenavWidth});
classesNav.css({width:sidenavWidth});
$("#packages-nav").css({width:sidenavWidth});
if (sidenav.length) { // Must check if the nav exists because IE6 calls resizeWidth() from resizeAll() for all pages
var basePath = getBaseUri(location.pathname);
var section = basePath.substring(1,basePath.indexOf("/",1));
writeCookie("width", sidenavWidth, section, null);
}
}
/* For IE6 only,
* because it can't properly perform auto width for "doc-content" div,
* avoiding this for all browsers provides better performance */
function resizeAll() {
resizeHeight();
resizeWidth();
}
function getBaseUri(uri) {
var intlUrl = (uri.substring(0,6) == "/intl/");
if (intlUrl) {
base = uri.substring(uri.indexOf('intl/')+5,uri.length);
base = base.substring(base.indexOf('/')+1, base.length);
//alert("intl, returning base url: /" + base);
return ("/" + base);
} else {
//alert("not intl, returning uri as found.");
return uri;
}
}
function requestAppendHL(uri) {
//append "?hl=<lang> to an outgoing request (such as to blog)
var lang = getLangPref();
if (lang) {
var q = 'hl=' + lang;
uri += '?' + q;
window.location = uri;
return false;
} else {
return true;
}
}
function loadLast(cookiePath) {
var location = window.location.href;
if (location.indexOf("/"+cookiePath+"/") != -1) {
return true;
}
var lastPage = readCookie(cookiePath + "_lastpage");
if (lastPage) {
window.location = lastPage;
return false;
}
return true;
}
$(window).unload(function(){
var path = getBaseUri(location.pathname);
if (path.indexOf("/reference/") != -1) {
writeCookie("lastpage", path, "reference", null);
} else if (path.indexOf("/guide/") != -1) {
writeCookie("lastpage", path, "guide", null);
} else if ((path.indexOf("/resources/") != -1) || (path.indexOf("/training/") != -1)) {
writeCookie("lastpage", path, "resources", null);
}
});
function toggle(obj, slide) {
var ul = $("ul:first", obj);
var li = ul.parent();
if (li.hasClass("closed")) {
if (slide) {
ul.slideDown("fast");
} else {
ul.show();
}
li.removeClass("closed");
li.addClass("open");
$(".toggle-img", li).attr("title", "hide pages");
} else {
ul.slideUp("fast");
li.removeClass("open");
li.addClass("closed");
$(".toggle-img", li).attr("title", "show pages");
}
}
function buildToggleLists() {
$(".toggle-list").each(
function(i) {
$("div:first", this).append("<a class='toggle-img' href='#' title='show pages' onClick='toggle(this.parentNode.parentNode, true); return false;'></a>");
$(this).addClass("closed");
});
}
function getNavPref() {
var v = readCookie('reference_nav');
if (v != NAV_PREF_TREE) {
v = NAV_PREF_PANELS;
}
return v;
}
function chooseDefaultNav() {
nav_pref = getNavPref();
if (nav_pref == NAV_PREF_TREE) {
$("#nav-panels").toggle();
$("#panel-link").toggle();
$("#nav-tree").toggle();
$("#tree-link").toggle();
}
}
function swapNav() {
if (nav_pref == NAV_PREF_TREE) {
nav_pref = NAV_PREF_PANELS;
} else {
nav_pref = NAV_PREF_TREE;
init_default_navtree(toRoot);
}
var date = new Date();
date.setTime(date.getTime()+(10*365*24*60*60*1000)); // keep this for 10 years
writeCookie("nav", nav_pref, "reference", date.toGMTString());
$("#nav-panels").toggle();
$("#panel-link").toggle();
$("#nav-tree").toggle();
$("#tree-link").toggle();
if ($("#nav-tree").is(':visible')) scrollIntoView("nav-tree");
else {
scrollIntoView("packages-nav");
scrollIntoView("classes-nav");
}
}
function scrollIntoView(nav) {
var navObj = $("#"+nav);
if (navObj.is(':visible')) {
var selected = $(".selected", navObj);
if (selected.length == 0) return;
if (selected.is("div")) selected = selected.parent(); // when the selected item is a parent
var scrolling = document.getElementById(nav);
var navHeight = navObj.height();
var offsetTop = selected.position().top;
// handle nested items
if (selected.parent().parent().is(".toggle-list")) {
selected = selected.parent().parent();
// handle second level nested items
if (selected.parent().parent().is(".toggle-list")) {
selected = selected.parent().parent();
}
offsetTop += selected.position().top;
}
// 180px from the bottom of the list is the threshold
if(offsetTop > navHeight - 180) {
scrolling.scrollTop = offsetTop - navHeight + 180;
}
}
}
function changeTabLang(lang) {
var nodes = $("#header-tabs").find("."+lang);
for (i=0; i < nodes.length; i++) { // for each node in this language
var node = $(nodes[i]);
node.siblings().css("display","none"); // hide all siblings
if (node.not(":empty").length != 0) { //if this languages node has a translation, show it
node.css("display","inline");
} else { //otherwise, show English instead
node.css("display","none");
node.siblings().filter(".en").css("display","inline");
}
}
}
function changeNavLang(lang) {
var nodes = $("#side-nav").find("."+lang);
for (i=0; i < nodes.length; i++) { // for each node in this language
var node = $(nodes[i]);
node.siblings().css("display","none"); // hide all siblings
if (node.not(":empty").length != 0) { // if this languages node has a translation, show it
node.css("display","inline");
} else { // otherwise, show English instead
node.css("display","none");
node.siblings().filter(".en").css("display","inline");
}
}
}
function changeDocLang(lang) {
changeTabLang(lang);
changeNavLang(lang);
}
function changeLangPref(lang, refresh) {
var date = new Date();
expires = date.toGMTString(date.setTime(date.getTime()+(10*365*24*60*60*1000))); // keep this for 50 years
//alert("expires: " + expires)
writeCookie("pref_lang", lang, null, expires);
//changeDocLang(lang);
if (refresh) {
l = getBaseUri(location.pathname);
window.location = l;
}
}
function loadLangPref() {
var lang = readCookie("pref_lang");
if (lang != 0) {
$("#language").find("option[value='"+lang+"']").attr("selected",true);
}
}
function getLangPref() {
var lang = $("#language").find(":selected").attr("value");
if (!lang) {
lang = readCookie("pref_lang");
}
return (lang != 0) ? lang : 'en';
}
/* Used to hide and reveal supplemental content, such as long code samples.
See the companion CSS in android-developer-docs.css */
function toggleContent(obj) {
var div = $(obj.parentNode.parentNode);
var toggleMe = $(".toggle-content-toggleme",div);
if (div.hasClass("closed")) { // if it's closed, open it
toggleMe.slideDown();
$(".toggle-content-text", obj).toggle();
div.removeClass("closed").addClass("open");
$(".toggle-content-img", div).attr("title", "hide").attr("src", toRoot + "assets/images/triangle-opened.png");
} else { // if it's open, close it
toggleMe.slideUp('fast', function() { // Wait until the animation is done before closing arrow
$(".toggle-content-text", obj).toggle();
div.removeClass("open").addClass("closed");
$(".toggle-content-img", div).attr("title", "show").attr("src", toRoot + "assets/images/triangle-closed.png");
});
}
return false;
}
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