541 lines
11 KiB
JavaScript
541 lines
11 KiB
JavaScript
/*
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Copyright (c) 2007-9, iUI Project Members
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See LICENSE.txt for licensing terms
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*/
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(function() {
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var slideSpeed = 20;
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var slideInterval = 0;
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var currentPage = null;
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var currentDialog = null;
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var currentWidth = 0;
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var currentHash = location.hash;
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var hashPrefix = "#_";
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var pageHistory = [];
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var newPageCount = 0;
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var checkTimer;
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var hasOrientationEvent = false;
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var portraitVal = "portrait";
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var landscapeVal = "landscape";
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// *************************************************************************************************
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window.iui =
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{
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animOn: true, // Slide animation with CSS transition is now enabled by default where supported
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showPage: function(page, backwards)
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{
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if (page)
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{
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if (currentDialog)
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{
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currentDialog.removeAttribute("selected");
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currentDialog = null;
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}
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if (hasClass(page, "dialog"))
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showDialog(page);
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else
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{
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var fromPage = currentPage;
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currentPage = page;
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if (fromPage)
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setTimeout(slidePages, 0, fromPage, page, backwards);
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else
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updatePage(page, fromPage);
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}
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}
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},
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showPageById: function(pageId)
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{
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var page = $(pageId);
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if (page)
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{
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var index = pageHistory.indexOf(pageId);
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var backwards = index != -1;
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if (backwards)
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pageHistory.splice(index, pageHistory.length);
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iui.showPage(page, backwards);
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}
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},
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showPageByHref: function(href, args, method, replace, cb, backwards)
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{
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var req = new XMLHttpRequest();
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req.onerror = function()
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{
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if (cb)
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cb(false);
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};
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req.onreadystatechange = function()
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{
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if (req.readyState == 4)
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{
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if (replace)
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replaceElementWithSource(replace, req.responseText);
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else
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{
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var frag = document.createElement("div");
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frag.innerHTML = req.responseText;
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iui.insertPages(frag.childNodes, backwards);
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}
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if (cb)
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setTimeout(cb, 1000, true);
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}
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};
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if (args)
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{
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req.open(method || "GET", href, true);
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req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
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req.setRequestHeader("Content-Length", args.length);
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req.send(args.join("&"));
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}
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else
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{
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req.open(method || "GET", href, true);
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req.send(null);
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}
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},
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insertPages: function(nodes, backwards)
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{
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var targetPage;
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for (var i = 0; i < nodes.length; ++i)
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{
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var child = nodes[i];
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if (child.nodeType == 1)
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{
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if (!child.id)
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child.id = "__" + (++newPageCount) + "__";
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var clone = $(child.id);
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if (clone)
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clone.parentNode.replaceChild(child, clone);
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else
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document.body.appendChild(child);
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if (child.getAttribute("selected") == "true" || !targetPage)
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targetPage = child;
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--i;
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}
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}
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if (targetPage)
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iui.showPage(targetPage, backwards);
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},
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getSelectedPage: function()
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{
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for (var child = document.body.firstChild; child; child = child.nextSibling)
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{
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if (child.nodeType == 1 && child.getAttribute("selected") == "true")
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return child;
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}
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},
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isNativeUrl: function(href)
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{
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for(var i = 0; i < iui.nativeUrlPatterns.length; i++)
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{
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if(href.match(iui.nativeUrlPatterns[i])) return true;
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}
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return false;
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},
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nativeUrlPatterns: [
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new RegExp("^http:\/\/maps.google.com\/maps\?"),
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new RegExp("^mailto:"),
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new RegExp("^tel:"),
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new RegExp("^http:\/\/www.youtube.com\/watch\\?v="),
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new RegExp("^http:\/\/www.youtube.com\/v\/"),
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new RegExp("^javascript:"),
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]
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};
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// *************************************************************************************************
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addEventListener("load", function(event)
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{
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var page = iui.getSelectedPage();
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var locPage = getPageFromLoc();
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if (page)
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iui.showPage(page);
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if (locPage && (locPage != page))
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iui.showPage(locPage);
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setTimeout(preloadImages, 0);
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if (typeof window.onorientationchange == "object")
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{
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window.onorientationchange=orientChangeHandler;
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hasOrientationEvent = true;
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setTimeout(orientChangeHandler, 0);
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}
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setTimeout(checkOrientAndLocation, 0);
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checkTimer = setInterval(checkOrientAndLocation, 300);
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}, false);
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addEventListener("unload", function(event)
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{
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return;
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}, false);
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addEventListener("click", function(event)
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{
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var link = findParent(event.target, "a");
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if (link)
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{
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function unselect() { link.removeAttribute("selected"); }
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if (link.href && link.hash && link.hash != "#" && !link.target)
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{
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link.setAttribute("selected", "true");
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iui.showPage($(link.hash.substr(1)));
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setTimeout(unselect, 500);
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}
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if (link == $("backButton")) {
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history.back();
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} else if (link.getAttribute("type") == "submit")
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{
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var form = findParent(link, "form");
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if (form.target == "_self")
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{
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form.submit();
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return; // return so we don't preventDefault
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}
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submitForm(form);
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}
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else if (link.getAttribute("type") == "cancel")
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cancelDialog(findParent(link, "form"));
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else if (link.target == "_replace")
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{
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link.setAttribute("selected", "progress");
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iui.showPageByHref(link.href, null, null, link, unselect);
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}
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else if (iui.isNativeUrl(link.href))
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{
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return;
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}
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else if (link.target == "_webapp")
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{
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location.href = link.href;
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}
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else if (!link.target)
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{
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link.setAttribute("selected", "progress");
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var backwards = link.getAttribute("backwards");
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iui.showPageByHref(link.href, null, null, null, unselect, backwards);
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}
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else
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return;
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event.preventDefault();
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}
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}, true);
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addEventListener("click", function(event)
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{
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var div = findParent(event.target, "div");
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if (div && hasClass(div, "toggle"))
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{
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div.setAttribute("toggled", div.getAttribute("toggled") != "true");
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event.preventDefault();
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}
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}, true);
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function getPageFromLoc()
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{
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var page;
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var result = location.hash.match(/#_([^\?_]+)/);
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if (result)
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page = result[1];
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if (page)
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page = $(page);
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return page;
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}
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function orientChangeHandler()
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{
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var orientation=window.orientation;
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switch(orientation)
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{
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case 0:
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setOrientation(portraitVal);
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break;
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case 90:
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case -90:
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setOrientation(landscapeVal);
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break;
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}
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}
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function checkOrientAndLocation()
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{
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if (!hasOrientationEvent)
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{
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if (window.innerWidth != currentWidth)
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{
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currentWidth = window.innerWidth;
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var orient = currentWidth == 320 ? portraitVal : landscapeVal;
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setOrientation(orient);
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}
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}
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if (location.hash != currentHash)
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{
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var pageId = location.hash.substr(hashPrefix.length);
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iui.showPageById(pageId);
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}
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}
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function setOrientation(orient)
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{
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document.body.setAttribute("orient", orient);
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setTimeout(scrollTo, 100, 0, 1);
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}
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function showDialog(page)
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{
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currentDialog = page;
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page.setAttribute("selected", "true");
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if (hasClass(page, "dialog") && !page.target)
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showForm(page);
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}
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function showForm(form)
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{
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form.onsubmit = function(event)
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{
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event.preventDefault();
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submitForm(form);
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};
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form.onclick = function(event)
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{
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if (event.target == form && hasClass(form, "dialog"))
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cancelDialog(form);
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};
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}
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function cancelDialog(form)
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{
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form.removeAttribute("selected");
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}
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function updatePage(page, fromPage)
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{
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if (!page.id)
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page.id = "__" + (++newPageCount) + "__";
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location.hash = currentHash = hashPrefix + page.id;
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pageHistory.push(page.id);
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var pageTitle = $("pageTitle");
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if (page.title)
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pageTitle.innerHTML = page.title;
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if (page.localName.toLowerCase() == "form" && !page.target)
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showForm(page);
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var backButton = $("backButton");
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if (backButton)
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{
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var prevPage = $(pageHistory[pageHistory.length-2]);
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if (prevPage && !page.getAttribute("hideBackButton"))
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{
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backButton.style.display = "inline";
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backButton.innerHTML = prevPage.title ? prevPage.title : "Back";
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}
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else
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backButton.style.display = "none";
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}
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var backButton = $("myBackButton");
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if (backButton)
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{
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var label = page.getAttribute("myBackLabel");
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if (label)
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{
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backButton.style.display = "inline";
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backButton.innerHTML = label;
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backButton.href = page.getAttribute("myBackHref");
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backButton.target = page.getAttribute("myBackTarget");
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backButton.setAttribute("backwards", "true");
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}
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else
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backButton.style.display = "none";
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}
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}
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function slidePages(fromPage, toPage, backwards)
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{
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var axis = (backwards ? fromPage : toPage).getAttribute("axis");
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clearInterval(checkTimer);
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if (canDoSlideAnim() && axis != 'y')
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{
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slide2(fromPage, toPage, backwards, slideDone);
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}
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else
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{
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slide1(fromPage, toPage, backwards, axis, slideDone);
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}
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function slideDone()
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{
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if (!hasClass(toPage, "dialog"))
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fromPage.removeAttribute("selected");
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checkTimer = setInterval(checkOrientAndLocation, 300);
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setTimeout(updatePage, 0, toPage, fromPage);
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fromPage.removeEventListener('webkitTransitionEnd', slideDone, false);
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}
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}
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function canDoSlideAnim()
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{
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return (iui.animOn) && (typeof WebKitCSSMatrix == "object");
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}
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function slide1(fromPage, toPage, backwards, axis, cb)
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{
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if (axis == "y")
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(backwards ? fromPage : toPage).style.top = "100%";
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else
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toPage.style.left = "100%";
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scrollTo(0, 1);
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toPage.setAttribute("selected", "true");
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var percent = 100;
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slide();
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var timer = setInterval(slide, slideInterval);
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function slide()
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{
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percent -= slideSpeed;
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if (percent <= 0)
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{
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percent = 0;
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clearInterval(timer);
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cb();
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}
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if (axis == "y")
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{
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backwards
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? fromPage.style.top = (100-percent) + "%"
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: toPage.style.top = percent + "%";
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}
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else
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{
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fromPage.style.left = (backwards ? (100-percent) : (percent-100)) + "%";
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toPage.style.left = (backwards ? -percent : percent) + "%";
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}
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}
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}
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function slide2(fromPage, toPage, backwards, cb)
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{
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toPage.style.webkitTransitionDuration = '0ms'; // Turn off transitions to set toPage start offset
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// fromStart is always 0% and toEnd is always 0%
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// iPhone won't take % width on toPage
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var toStart = 'translateX(' + (backwards ? '-' : '') + window.innerWidth + 'px)';
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var fromEnd = 'translateX(' + (backwards ? '100%' : '-100%') + ')';
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toPage.style.webkitTransform = toStart;
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toPage.setAttribute("selected", "true");
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toPage.style.webkitTransitionDuration = ''; // Turn transitions back on
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function startTrans()
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{
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fromPage.style.webkitTransform = fromEnd;
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toPage.style.webkitTransform = 'translateX(0%)'; //toEnd
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}
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fromPage.addEventListener('webkitTransitionEnd', cb, false);
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setTimeout(startTrans, 0);
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}
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function preloadImages()
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{
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var preloader = document.createElement("div");
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preloader.id = "preloader";
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document.body.appendChild(preloader);
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}
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function submitForm(form)
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{
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iui.showPageByHref(form.action || "POST", encodeForm(form), form.method);
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}
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function encodeForm(form)
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{
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function encode(inputs)
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{
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for (var i = 0; i < inputs.length; ++i)
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{
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if (inputs[i].name)
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args.push(inputs[i].name + "=" + escape(inputs[i].value));
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}
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}
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var args = [];
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encode(form.getElementsByTagName("input"));
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encode(form.getElementsByTagName("textarea"));
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encode(form.getElementsByTagName("select"));
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return args;
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}
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function findParent(node, localName)
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{
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while (node && (node.nodeType != 1 || node.localName.toLowerCase() != localName))
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node = node.parentNode;
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return node;
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}
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function hasClass(self, name)
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{
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var re = new RegExp("(^|\\s)"+name+"($|\\s)");
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return re.exec(self.getAttribute("class")) != null;
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}
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function replaceElementWithSource(replace, source)
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{
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var page = replace.parentNode;
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var parent = replace;
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while (page.parentNode != document.body)
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{
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page = page.parentNode;
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parent = parent.parentNode;
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}
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var frag = document.createElement(parent.localName);
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frag.innerHTML = source;
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page.removeChild(parent);
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while (frag.firstChild)
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page.appendChild(frag.firstChild);
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}
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function $(id) { return document.getElementById(id); }
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function ddd() { console.log.apply(console, arguments); }
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})();
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