mirror of
https://github.com/bigskysoftware/htmx.git
synced 2025-09-30 14:31:47 +00:00
2cf6023eb7
Fix including input values (checkboxes, etc.) (jQuery is smart) Add bulk update demo (needs docs)
1146 lines
45 KiB
JavaScript
1146 lines
45 KiB
JavaScript
// noinspection JSUnusedAssignment
|
|
var kutty = kutty || (function () {
|
|
'use strict';
|
|
|
|
var VERBS = ['get', 'post', 'put', 'delete', 'patch']
|
|
|
|
//====================================================================
|
|
// Utilities
|
|
//====================================================================
|
|
|
|
function parseInterval(str) {
|
|
if (str === "null" || str === "false" || str === "") {
|
|
return null;
|
|
} else if (str.lastIndexOf("ms") === str.length - 2) {
|
|
return parseFloat(str.substr(0, str.length - 2));
|
|
} else if (str.lastIndexOf("s") === str.length - 1) {
|
|
return parseFloat(str.substr(0, str.length - 1)) * 1000;
|
|
} else {
|
|
return parseFloat(str);
|
|
}
|
|
}
|
|
|
|
function getRawAttribute(elt, name) {
|
|
return elt.getAttribute && elt.getAttribute(name);
|
|
}
|
|
|
|
// resolve with both kt and data-kt prefixes
|
|
function getAttributeValue(elt, qualifiedName) {
|
|
return getRawAttribute(elt, qualifiedName) || getRawAttribute(elt, "data-" + qualifiedName);
|
|
}
|
|
|
|
function parentElt(elt) {
|
|
return elt.parentElement;
|
|
}
|
|
|
|
function getDocument() {
|
|
return document;
|
|
}
|
|
|
|
function getClosestMatch(elt, condition) {
|
|
if (condition(elt)) {
|
|
return elt;
|
|
} else if (parentElt(elt)) {
|
|
return getClosestMatch(parentElt(elt), condition);
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
function getClosestAttributeValue(elt, attributeName) {
|
|
var closestAttr = null;
|
|
getClosestMatch(elt, function (e) {
|
|
return closestAttr = getRawAttribute(e, attributeName);
|
|
});
|
|
return closestAttr;
|
|
}
|
|
|
|
function matches(elt, selector) {
|
|
// noinspection JSUnresolvedVariable
|
|
return (elt != null) &&(elt.matches || elt.matchesSelector || elt.msMatchesSelector || elt.mozMatchesSelector
|
|
|| elt.webkitMatchesSelector || elt.oMatchesSelector).call(elt, selector);
|
|
}
|
|
|
|
function closest (elt, selector) {
|
|
do if (elt == null || matches(elt, selector)) return elt;
|
|
while (elt = elt && parentElt(elt));
|
|
}
|
|
|
|
function getStartTag(str) {
|
|
var tagMatcher = /<([a-z][^\/\0>\x20\t\r\n\f]*)/i
|
|
var match = tagMatcher.exec( str );
|
|
if (match) {
|
|
return match[1].toLowerCase();
|
|
} else {
|
|
return "";
|
|
}
|
|
}
|
|
|
|
function parseHTML(resp, depth) {
|
|
var parser = new DOMParser();
|
|
var responseDoc = parser.parseFromString(resp, "text/html");
|
|
var responseNode = responseDoc.body;
|
|
while (depth > 0) {
|
|
depth--;
|
|
responseNode = responseNode.firstChild;
|
|
}
|
|
return responseNode;
|
|
}
|
|
|
|
function makeFragment(resp) {
|
|
var startTag = getStartTag(resp);
|
|
switch (startTag) {
|
|
case "thead":
|
|
case "tbody":
|
|
case "tfoot":
|
|
case "colgroup":
|
|
case "caption":
|
|
return parseHTML("<table>" + resp + "</table>", 1);
|
|
case "col":
|
|
return parseHTML("<table><colgroup>" + resp + "</colgroup></table>", 2);
|
|
case "tr":
|
|
return parseHTML("<table><tbody>" + resp + "</tbody></table>", 2);
|
|
case "td":
|
|
case "th":
|
|
return parseHTML("<table><tbody><tr>" + resp + "</tr></tbody></table>", 3);
|
|
default:
|
|
return parseHTML(resp, 0);
|
|
}
|
|
}
|
|
|
|
function isType(o, type) {
|
|
return Object.prototype.toString.call(o) === "[object " + type + "]";
|
|
}
|
|
|
|
function isFunction(o) {
|
|
return isType(o, "Function");
|
|
}
|
|
|
|
function isRawObject(o) {
|
|
return isType(o, "Object");
|
|
}
|
|
|
|
function getInternalData(elt) {
|
|
var dataProp = 'kutty-internal-data';
|
|
var data = elt[dataProp];
|
|
if (!data) {
|
|
data = elt[dataProp] = {};
|
|
}
|
|
return data;
|
|
}
|
|
|
|
function forEach(arr, func) {
|
|
if (arr) {
|
|
for (var i = 0; i < arr.length; i++) {
|
|
func(arr[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
function isScrolledIntoView(el) {
|
|
var rect = el.getBoundingClientRect();
|
|
var elemTop = rect.top;
|
|
var elemBottom = rect.bottom;
|
|
return elemTop < window.innerHeight && elemBottom >= 0;
|
|
}
|
|
|
|
function bodyContains(elt) {
|
|
return getDocument().body.contains(elt);
|
|
}
|
|
|
|
function concat(arr1, arr2) {
|
|
return arr1.concat(arr2);
|
|
}
|
|
|
|
function splitOnWhitespace(trigger) {
|
|
return trigger.split(/\s+/);
|
|
}
|
|
|
|
function addRule(rule) {
|
|
var sheet = getDocument().styleSheets[0];
|
|
sheet.insertRule(rule, sheet.cssRules.length);
|
|
}
|
|
|
|
//====================================================================
|
|
// Node processing
|
|
//====================================================================
|
|
|
|
function getTarget(elt) {
|
|
var explicitTarget = getClosestMatch(elt, function(e){return getRawAttribute(e,"kt-target") !== null});
|
|
if (explicitTarget) {
|
|
var targetStr = getRawAttribute(explicitTarget, "kt-target");
|
|
if (targetStr === "this") {
|
|
return explicitTarget;
|
|
} else {
|
|
return getDocument().querySelector(targetStr);
|
|
}
|
|
} else {
|
|
var data = getInternalData(elt);
|
|
if (data.boosted) {
|
|
return getDocument().body;
|
|
} else {
|
|
return elt;
|
|
}
|
|
}
|
|
}
|
|
|
|
function cloneAttributes(mergeTo, mergeFrom) {
|
|
forEach(mergeTo.attributes, function (attr) {
|
|
if (!mergeFrom.hasAttribute(attr.name)) {
|
|
mergeTo.removeAttribute(attr.name)
|
|
}
|
|
});
|
|
forEach(mergeFrom.attributes, function (attr) {
|
|
mergeTo.setAttribute(attr.name, attr.value);
|
|
});
|
|
}
|
|
|
|
function handleOutOfBandSwaps(fragment) {
|
|
var settleTasks = [];
|
|
forEach(fragment.children, function (child) {
|
|
if (getAttributeValue(child, "kt-swap-oob") === "true") {
|
|
var target = getDocument().getElementById(child.id);
|
|
if (target) {
|
|
var fragment = getDocument().createDocumentFragment();
|
|
fragment.appendChild(child);
|
|
settleTasks = settleTasks.concat(swapOuterHTML(target, fragment));
|
|
} else {
|
|
child.parentNode.removeChild(child);
|
|
triggerEvent(getDocument().body, "oobErrorNoTarget.kutty", {id: child.id, content: child})
|
|
}
|
|
}
|
|
});
|
|
return settleTasks;
|
|
}
|
|
|
|
function handleAttributes(parentNode, fragment) {
|
|
var attributeSwaps = [];
|
|
forEach(fragment.querySelectorAll("[id]"), function (newNode) {
|
|
var oldNode = parentNode.querySelector(newNode.tagName + "[id=" + newNode.id + "]")
|
|
if (oldNode) {
|
|
var newAttributes = newNode.cloneNode();
|
|
cloneAttributes(newNode, oldNode);
|
|
attributeSwaps.push(function () {
|
|
cloneAttributes(newNode, newAttributes);
|
|
});
|
|
}
|
|
});
|
|
return attributeSwaps;
|
|
}
|
|
|
|
function insertNodesBefore(parentNode, insertBefore, fragment) {
|
|
var settleTasks = handleAttributes(parentNode, fragment);
|
|
while(fragment.childNodes.length > 0){
|
|
var child = fragment.firstChild;
|
|
parentNode.insertBefore(child, insertBefore);
|
|
if (child.nodeType !== Node.TEXT_NODE) {
|
|
triggerEvent(child, 'load.kutty', {elt:child, parent:parentElt(child)});
|
|
processNode(child);
|
|
}
|
|
}
|
|
return settleTasks;
|
|
}
|
|
|
|
function swapOuterHTML(target, fragment) {
|
|
if (target.tagName === "BODY") {
|
|
return swapInnerHTML(target, fragment);
|
|
} else {
|
|
var settleTasks = insertNodesBefore(parentElt(target), target, fragment);
|
|
parentElt(target).removeChild(target);
|
|
return settleTasks;
|
|
}
|
|
}
|
|
|
|
function swapAfterBegin(target, fragment) {
|
|
return insertNodesBefore(target, target.firstChild, fragment);
|
|
}
|
|
|
|
function swapBeforeBegin(target, fragment) {
|
|
return insertNodesBefore(parentElt(target), target, fragment);
|
|
}
|
|
|
|
function swapBeforeEnd(target, fragment) {
|
|
return insertNodesBefore(target, null, fragment);
|
|
}
|
|
|
|
function swapAfterEnd(target, fragment) {
|
|
return insertNodesBefore(parentElt(target), target.nextSibling, fragment);
|
|
}
|
|
|
|
function swapInnerHTML(target, fragment) {
|
|
var firstChild = target.firstChild;
|
|
var settleTasks = insertNodesBefore(target, firstChild, fragment);
|
|
if (firstChild) {
|
|
while (firstChild.nextSibling) {
|
|
target.removeChild(firstChild.nextSibling);
|
|
}
|
|
target.removeChild(firstChild);
|
|
}
|
|
return settleTasks;
|
|
}
|
|
|
|
function maybeSelectFromResponse(elt, fragment) {
|
|
var selector = getClosestAttributeValue(elt, "kt-select");
|
|
if (selector) {
|
|
var newFragment = getDocument().createDocumentFragment();
|
|
forEach(fragment.querySelectorAll(selector), function (node) {
|
|
newFragment.appendChild(node);
|
|
});
|
|
fragment = newFragment;
|
|
}
|
|
return fragment;
|
|
}
|
|
|
|
function swapResponse(swapStyle, target, elt, responseText) {
|
|
var fragment = makeFragment(responseText);
|
|
if (fragment) {
|
|
var settleTasks = handleOutOfBandSwaps(fragment);
|
|
|
|
fragment = maybeSelectFromResponse(elt, fragment);
|
|
|
|
switch(swapStyle) {
|
|
case "outerHTML": return concat(settleTasks, swapOuterHTML(target, fragment));
|
|
case "afterbegin": return concat(settleTasks, swapAfterBegin(target, fragment));
|
|
case "beforebegin": return concat(settleTasks, swapBeforeBegin(target, fragment));
|
|
case "beforeend": return concat(settleTasks, swapBeforeEnd(target, fragment));
|
|
case "afterend": return concat(settleTasks, swapAfterEnd(target, fragment));
|
|
default: return concat(settleTasks, swapInnerHTML(target, fragment));
|
|
}
|
|
}
|
|
}
|
|
|
|
function handleTrigger(elt, trigger) {
|
|
if (trigger) {
|
|
if (trigger.indexOf("{") === 0) {
|
|
var triggers = JSON.parse(trigger);
|
|
for (var eventName in triggers) {
|
|
if (triggers.hasOwnProperty(eventName)) {
|
|
var detail = triggers[eventName];
|
|
if (!isRawObject(detail)) {
|
|
detail = {"value": detail}
|
|
}
|
|
triggerEvent(elt, eventName, detail);
|
|
}
|
|
}
|
|
} else {
|
|
triggerEvent(elt, trigger, []);
|
|
}
|
|
}
|
|
}
|
|
|
|
function getTriggerSpec(elt) {
|
|
|
|
var triggerSpec = {
|
|
"trigger" : "click"
|
|
}
|
|
var explicitTrigger = getClosestAttributeValue(elt, 'kt-trigger');
|
|
if (explicitTrigger) {
|
|
var tokens = splitOnWhitespace(explicitTrigger);
|
|
if (tokens.length > 0) {
|
|
var trigger = tokens[0];
|
|
if (trigger === "every") {
|
|
triggerSpec.pollInterval = parseInterval(tokens[1]);
|
|
} else if (trigger.indexOf("sse:") === 0) {
|
|
triggerSpec.sseEvent = trigger.substr(4);
|
|
} else {
|
|
triggerSpec['trigger'] = trigger;
|
|
for (var i = 1; i < tokens.length; i++) {
|
|
var token = tokens[i].trim();
|
|
if (token === "changed") {
|
|
triggerSpec.changed = true;
|
|
}
|
|
if (token === "once") {
|
|
triggerSpec.once = true;
|
|
}
|
|
if (token.indexOf("delay:") === 0) {
|
|
triggerSpec.delay = parseInterval(token.substr(6));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if (matches(elt, 'form')) {
|
|
triggerSpec['trigger'] = 'submit';
|
|
} else if (matches(elt, 'input, textarea, select')) {
|
|
triggerSpec['trigger'] = 'change';
|
|
}
|
|
}
|
|
return triggerSpec;
|
|
}
|
|
|
|
function parseClassOperation(trimmedValue) {
|
|
var split = splitOnWhitespace(trimmedValue);
|
|
if (split.length > 1) {
|
|
var operation = split[0];
|
|
var classDef = split[1].trim();
|
|
var cssClass;
|
|
var delay;
|
|
if (classDef.indexOf(":") > 0) {
|
|
var splitCssClass = classDef.split(':');
|
|
cssClass = splitCssClass[0];
|
|
delay = parseInterval(splitCssClass[1]);
|
|
} else {
|
|
cssClass = classDef;
|
|
delay = 100;
|
|
}
|
|
return {
|
|
operation:operation,
|
|
cssClass:cssClass,
|
|
delay:delay
|
|
}
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
function processClassList(elt, classList, operation) {
|
|
forEach(classList.split("&"), function (run) {
|
|
var currentRunTime = 0;
|
|
forEach(run.split(","), function(value){
|
|
var trimmedValue = value.trim();
|
|
var classOperation = parseClassOperation(trimmedValue);
|
|
if (classOperation) {
|
|
if (classOperation.operation === "toggle") {
|
|
setTimeout(function () {
|
|
setInterval(function () {
|
|
elt.classList[classOperation.operation].call(elt.classList, classOperation.cssClass);
|
|
}, classOperation.delay);
|
|
}, currentRunTime);
|
|
currentRunTime = currentRunTime + classOperation.delay;
|
|
} else {
|
|
currentRunTime = currentRunTime + classOperation.delay;
|
|
setTimeout(function () {
|
|
elt.classList[classOperation.operation].call(elt.classList, classOperation.cssClass);
|
|
}, currentRunTime);
|
|
}
|
|
}
|
|
});
|
|
});
|
|
}
|
|
|
|
function processPolling(elt, verb, path, interval) {
|
|
var nodeData = getInternalData(elt);
|
|
nodeData.timeout = setTimeout(function () {
|
|
if (bodyContains(elt)) {
|
|
issueAjaxRequest(elt, verb, path);
|
|
processPolling(elt, verb, getAttributeValue(elt, "kt-" + verb), interval);
|
|
}
|
|
}, interval);
|
|
}
|
|
|
|
function isLocalLink(elt) {
|
|
return location.hostname === elt.hostname &&
|
|
getRawAttribute(elt,'href') &&
|
|
!getRawAttribute(elt,'href').startsWith("#")
|
|
}
|
|
|
|
function boostElement(elt, nodeData, triggerSpec) {
|
|
if ((elt.tagName === "A" && isLocalLink(elt)) || elt.tagName === "FORM") {
|
|
nodeData.boosted = true;
|
|
var verb, path;
|
|
if (elt.tagName === "A") {
|
|
verb = "get";
|
|
path = getRawAttribute(elt, 'href');
|
|
} else {
|
|
var rawAttribute = getRawAttribute(elt, "method");
|
|
verb = rawAttribute ? rawAttribute.toLowerCase() : "get";
|
|
path = getRawAttribute(elt, 'action');
|
|
}
|
|
addEventListener(elt, verb, path, nodeData, triggerSpec, true);
|
|
}
|
|
}
|
|
|
|
function shouldCancel(elt) {
|
|
return elt.tagName === "FORM" ||
|
|
(matches(elt, 'input[type="submit"], button') && closest(elt, 'form') !== null) ||
|
|
(elt.tagName === "A" && elt.href && elt.href.indexOf('#') !== 0);
|
|
}
|
|
|
|
function addEventListener(elt, verb, path, nodeData, triggerSpec, explicitCancel) {
|
|
var eventListener = function (evt) {
|
|
if(explicitCancel || shouldCancel(elt)) evt.preventDefault();
|
|
var eventData = getInternalData(evt);
|
|
var elementData = getInternalData(elt);
|
|
if (!eventData.handled) {
|
|
eventData.handled = true;
|
|
if (triggerSpec.once) {
|
|
if (elementData.triggeredOnce) {
|
|
return;
|
|
} else {
|
|
elementData.triggeredOnce = true;
|
|
}
|
|
}
|
|
if (triggerSpec.changed) {
|
|
if (elementData.lastValue === elt.value) {
|
|
return;
|
|
} else {
|
|
elementData.lastValue = elt.value;
|
|
}
|
|
}
|
|
if (elementData.delayed) {
|
|
clearTimeout(elementData.delayed);
|
|
}
|
|
var issueRequest = function(){
|
|
issueAjaxRequest(elt, verb, path, evt.target);
|
|
}
|
|
if (triggerSpec.delay) {
|
|
elementData.delayed = setTimeout(issueRequest, parseInterval(triggerSpec.delay));
|
|
} else {
|
|
issueRequest();
|
|
}
|
|
}
|
|
};
|
|
nodeData.trigger = triggerSpec.trigger;
|
|
nodeData.eventListener = eventListener;
|
|
elt.addEventListener(triggerSpec.trigger, eventListener);
|
|
}
|
|
|
|
function initScrollHandler() {
|
|
if (!window['kuttyScrollHandler']) {
|
|
var scrollHandler = function() {
|
|
forEach(getDocument().querySelectorAll("[kt-trigger='reveal']"), function (elt) {
|
|
maybeReveal(elt);
|
|
});
|
|
};
|
|
window['kuttyScrollHandler'] = scrollHandler;
|
|
window.addEventListener("scroll", scrollHandler)
|
|
}
|
|
}
|
|
|
|
function maybeReveal(elt) {
|
|
var nodeData = getInternalData(elt);
|
|
if (!nodeData.revealed && isScrolledIntoView(elt)) {
|
|
nodeData.revealed = true;
|
|
issueAjaxRequest(elt, nodeData.verb, nodeData.path);
|
|
}
|
|
}
|
|
|
|
function maybeCloseSSESource(elt) {
|
|
if (!bodyContains(elt)) {
|
|
elt.sseSource.close();
|
|
return true;
|
|
}
|
|
}
|
|
|
|
function initSSESource(elt, sseSrc) {
|
|
var detail = {
|
|
initializer: function() { new EventSource(sseSrc, detail.config) },
|
|
config:{withCredentials: true}
|
|
};
|
|
triggerEvent(elt, "initSSE.kutty", {config:detail})
|
|
var source = detail.initializer();
|
|
source.onerror = function (e) {
|
|
triggerEvent(elt, "sseError.kutty", {error:e, source:source});
|
|
maybeCloseSSESource(elt);
|
|
};
|
|
getInternalData(elt).sseSource = source;
|
|
}
|
|
|
|
function processSSETrigger(sseEventName, elt, verb, path) {
|
|
var sseSource = getClosestMatch(elt, function (parent) {
|
|
return parent.sseSource;
|
|
});
|
|
if (sseSource) {
|
|
var sseListener = function () {
|
|
if (!maybeCloseSSESource(sseSource)) {
|
|
if (bodyContains(elt)) {
|
|
issueAjaxRequest(elt, verb, path);
|
|
} else {
|
|
sseSource.sseSource.removeEventListener(sseEventName, sseListener);
|
|
}
|
|
}
|
|
};
|
|
sseSource.sseSource.addEventListener(sseEventName, sseListener);
|
|
} else {
|
|
triggerEvent(elt, "noSSESourceError.kutty")
|
|
}
|
|
}
|
|
|
|
function loadImmediately(nodeData, elt, verb, path) {
|
|
if (!nodeData.loaded) {
|
|
nodeData.loaded = true;
|
|
issueAjaxRequest(elt, verb, path);
|
|
}
|
|
}
|
|
|
|
function processVerbs(elt, nodeData, triggerSpec) {
|
|
var explicitAction = false;
|
|
forEach(VERBS, function (verb) {
|
|
var path = getAttributeValue(elt, 'kt-' + verb);
|
|
if (path) {
|
|
explicitAction = true;
|
|
nodeData.path = path;
|
|
nodeData.verb = verb;
|
|
if (triggerSpec.sseEvent) {
|
|
processSSETrigger(triggerSpec.sseEvent, elt, verb, path);
|
|
} else if (triggerSpec.trigger === "revealed") {
|
|
initScrollHandler();
|
|
maybeReveal(elt);
|
|
} else if (triggerSpec.trigger === "load") {
|
|
loadImmediately(nodeData, elt, verb, path);
|
|
} else if (triggerSpec.pollInterval) {
|
|
nodeData.polling = true;
|
|
processPolling(elt, verb, path, triggerSpec.pollInterval);
|
|
} else {
|
|
addEventListener(elt, verb, path, nodeData, triggerSpec);
|
|
}
|
|
}
|
|
});
|
|
return explicitAction;
|
|
}
|
|
|
|
function processNode(elt) {
|
|
var nodeData = getInternalData(elt);
|
|
if (!nodeData.processed) {
|
|
nodeData.processed = true;
|
|
|
|
var triggerSpec = getTriggerSpec(elt);
|
|
var explicitAction = processVerbs(elt, nodeData, triggerSpec);
|
|
|
|
if (!explicitAction && getClosestAttributeValue(elt, "kt-boost") === "true") {
|
|
boostElement(elt, nodeData, triggerSpec);
|
|
}
|
|
var sseSrc = getAttributeValue(elt, 'kt-sse-source');
|
|
if (sseSrc) {
|
|
initSSESource(elt, sseSrc);
|
|
}
|
|
var addClass = getAttributeValue(elt, 'kt-classes');
|
|
if (addClass) {
|
|
processClassList(elt, addClass);
|
|
}
|
|
}
|
|
if (elt.children) { // IE
|
|
forEach(elt.children, function(child) { processNode(child) });
|
|
}
|
|
}
|
|
|
|
//====================================================================
|
|
// Event/Log Support
|
|
//====================================================================
|
|
|
|
function sendError(elt, eventName, detail) {
|
|
var errorURL = getClosestAttributeValue(elt, "kt-error-url");
|
|
if (errorURL) {
|
|
var xhr = new XMLHttpRequest();
|
|
xhr.open("POST", errorURL);
|
|
xhr.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
|
|
xhr.send(JSON.stringify({ "elt": elt.id, "event": eventName, "detail" : detail }));
|
|
}
|
|
}
|
|
|
|
function makeEvent(eventName, detail) {
|
|
var evt;
|
|
if (window.CustomEvent && typeof window.CustomEvent === 'function') {
|
|
evt = new CustomEvent(eventName, {bubbles: true, cancelable: true, detail: detail});
|
|
} else {
|
|
evt = getDocument().createEvent('CustomEvent');
|
|
evt.initCustomEvent(eventName, true, true, detail);
|
|
}
|
|
return evt;
|
|
}
|
|
|
|
function triggerEvent(elt, eventName, detail) {
|
|
detail["elt"] = elt;
|
|
var event = makeEvent(eventName, detail);
|
|
if (kutty.logger) {
|
|
kutty.logger(elt, eventName, detail);
|
|
if (eventName.indexOf("Error") > 0) {
|
|
sendError(elt, eventName, detail);
|
|
}
|
|
}
|
|
var eventResult = elt.dispatchEvent(event);
|
|
var allResult = elt.dispatchEvent(makeEvent("all.kutty", {elt:elt, originalDetail:detail, originalEvent: event}));
|
|
return eventResult && allResult;
|
|
}
|
|
|
|
function addKuttyEventListener(arg1, arg2, arg3) {
|
|
var target, event, listener;
|
|
if (isFunction(arg1)) {
|
|
ready(function(){
|
|
target = getDocument().body;
|
|
event = "all.kutty";
|
|
listener = arg1;
|
|
target.addEventListener(event, listener);
|
|
})
|
|
} else if (isFunction(arg2)) {
|
|
ready(function () {
|
|
target = getDocument().body;
|
|
event = arg1;
|
|
listener = arg2;
|
|
target.addEventListener(event, listener);
|
|
})
|
|
} else {
|
|
target = arg1;
|
|
event = arg2;
|
|
listener = arg3;
|
|
target.addEventListener(event, listener);
|
|
}
|
|
}
|
|
|
|
//====================================================================
|
|
// History Support
|
|
//====================================================================
|
|
function getHistoryElement() {
|
|
var historyElt = getDocument().querySelector('.kutty-history-elt');
|
|
return historyElt || getDocument().body;
|
|
}
|
|
|
|
function purgeOldestPaths(paths, historyTimestamps) {
|
|
paths = paths.sort(function (path1, path2) {
|
|
return historyTimestamps[path2] - historyTimestamps[path1]
|
|
});
|
|
var slot = 0;
|
|
forEach(paths, function (path) {
|
|
slot++;
|
|
if (slot > 20) {
|
|
delete historyTimestamps[path];
|
|
localStorage.removeItem(path);
|
|
}
|
|
});
|
|
}
|
|
|
|
function bumpHistoryAccessDate(pathAndSearch) {
|
|
var historyTimestamps = JSON.parse(localStorage.getItem("kt-history-timestamps")) || {};
|
|
historyTimestamps[pathAndSearch] = Date.now();
|
|
var paths = Object.keys(historyTimestamps);
|
|
if (paths.length > 20) {
|
|
purgeOldestPaths(paths, historyTimestamps);
|
|
}
|
|
localStorage.setItem("kt-history-timestamps", JSON.stringify(historyTimestamps));
|
|
}
|
|
|
|
function saveHistory() {
|
|
var elt = getHistoryElement();
|
|
var pathAndSearch = location.pathname+location.search;
|
|
triggerEvent(getDocument().body, "historyUpdate.kutty", {path:pathAndSearch, historyElement:elt});
|
|
history.replaceState({}, getDocument().title, window.location.href);
|
|
localStorage.setItem('kt-history:' + pathAndSearch, elt.innerHTML);
|
|
bumpHistoryAccessDate(pathAndSearch);
|
|
}
|
|
|
|
function pushUrlIntoHistory(url) {
|
|
history.pushState({}, "", url );
|
|
}
|
|
|
|
function settleImmediately(settleTasks) {
|
|
forEach(settleTasks, function (task) {
|
|
task.call();
|
|
});
|
|
}
|
|
|
|
function loadHistoryFromServer(pathAndSearch) {
|
|
triggerEvent(getDocument().body, "historyCacheMiss.kutty", {path: pathAndSearch});
|
|
var request = new XMLHttpRequest();
|
|
request.open('GET', pathAndSearch, true);
|
|
request.onload = function () {
|
|
triggerEvent(getDocument().body, "historyCacheMissLoad.kutty", {path: pathAndSearch});
|
|
if (this.status >= 200 && this.status < 400) {
|
|
var fragment = makeFragment(this.response);
|
|
fragment = fragment.querySelector('.kutty-history-elt') || fragment;
|
|
settleImmediately(swapInnerHTML(getHistoryElement(), fragment));
|
|
}
|
|
};
|
|
}
|
|
|
|
function restoreHistory() {
|
|
var pathAndSearch = location.pathname+location.search;
|
|
triggerEvent(getDocument().body, "historyRestore.kutty", {path:pathAndSearch});
|
|
var content = localStorage.getItem('kt-history:' + pathAndSearch);
|
|
if (content) {
|
|
bumpHistoryAccessDate(pathAndSearch);
|
|
settleImmediately(swapInnerHTML(getHistoryElement(), makeFragment(content)));
|
|
} else {
|
|
loadHistoryFromServer(pathAndSearch);
|
|
}
|
|
}
|
|
|
|
function shouldPush(elt) {
|
|
return getClosestAttributeValue(elt, "kt-push-url") === "true" ||
|
|
(elt.tagName === "A" && getInternalData(elt).boosted);
|
|
}
|
|
|
|
function addRequestIndicatorClasses(elt) {
|
|
mutateRequestIndicatorClasses(elt, "add");
|
|
}
|
|
|
|
function removeRequestIndicatorClasses(elt) {
|
|
mutateRequestIndicatorClasses(elt, "remove");
|
|
}
|
|
|
|
function mutateRequestIndicatorClasses(elt, action) {
|
|
var indicator = getClosestAttributeValue(elt, 'kt-indicator');
|
|
if (indicator) {
|
|
var indicators = getDocument().querySelectorAll(indicator);
|
|
} else {
|
|
indicators = [elt];
|
|
}
|
|
forEach(indicators, function(ic) {
|
|
ic.classList[action].call(ic.classList, "kutty-request");
|
|
});
|
|
}
|
|
|
|
//====================================================================
|
|
// Input Value Processing
|
|
//====================================================================
|
|
|
|
function haveSeenNode(processed, elt) {
|
|
for (var i = 0; i < processed.length; i++) {
|
|
var node = processed[i];
|
|
if (node.isSameNode(elt)) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
function shouldInclude(elt) {
|
|
if(elt.name === "" || elt.name == null || elt.disabled) {
|
|
return false;
|
|
}
|
|
// ignore "submitter" types (see jQuery src/serialize.js)
|
|
if (elt.type === "button" || elt.type === "submit" || elt.tagName === "image" || elt.tagName === "reset" || elt.tagName === "file" ) {
|
|
return false;
|
|
}
|
|
if (elt.type === "checkbox" || elt.type === "radio" ) {
|
|
return elt.checked;
|
|
}
|
|
}
|
|
|
|
function processInputValue(processed, values, elt) {
|
|
if (elt == null || haveSeenNode(processed, elt)) {
|
|
return;
|
|
} else {
|
|
processed.push(elt);
|
|
}
|
|
if (shouldInclude(elt)) {
|
|
var name = getRawAttribute(elt,"name");
|
|
var value = elt.value;
|
|
if (name && value) {
|
|
var current = values[name];
|
|
if(current) {
|
|
if (Array.isArray(current)) {
|
|
current.push(value);
|
|
} else {
|
|
values[name] = [current, value];
|
|
}
|
|
} else {
|
|
values[name] = value;
|
|
}
|
|
}
|
|
}
|
|
if (matches(elt, 'form')) {
|
|
var inputs = elt.elements;
|
|
forEach(inputs, function(input) {
|
|
processInputValue(processed, values, input);
|
|
});
|
|
}
|
|
}
|
|
|
|
function getInputValues(elt) {
|
|
var processed = [];
|
|
var values = {};
|
|
// include the element itself
|
|
processInputValue(processed, values, elt);
|
|
|
|
// include any explicit includes
|
|
var includes = getClosestAttributeValue(elt, "kt-include");
|
|
if (includes) {
|
|
var nodes = getDocument().querySelectorAll(includes);
|
|
forEach(nodes, function(node) {
|
|
processInputValue(processed, values, node);
|
|
});
|
|
}
|
|
|
|
// include the closest form
|
|
processInputValue(processed, values, closest(elt, 'form'));
|
|
return values;
|
|
}
|
|
|
|
function appendParam(returnStr, name, realValue) {
|
|
if (returnStr !== "") {
|
|
returnStr += "&";
|
|
}
|
|
returnStr += encodeURIComponent(name) + "=" + encodeURIComponent(realValue);
|
|
return returnStr;
|
|
}
|
|
|
|
function urlEncode(values) {
|
|
var returnStr = "";
|
|
for (var name in values) {
|
|
if (values.hasOwnProperty(name)) {
|
|
var value = values[name];
|
|
if (Array.isArray(value)) {
|
|
forEach(value, function(v) {
|
|
returnStr = appendParam(returnStr, name, v);
|
|
});
|
|
} else {
|
|
returnStr = appendParam(returnStr, name, value);
|
|
}
|
|
}
|
|
}
|
|
return returnStr;
|
|
}
|
|
|
|
//====================================================================
|
|
// Ajax
|
|
//====================================================================
|
|
|
|
function setHeader(xhr, name, value, noPrefix) {
|
|
xhr.setRequestHeader((noPrefix ? "" : "X-KT-") + name, value || "");
|
|
}
|
|
|
|
function setRequestHeaders(xhr, elt, target, prompt, eventTarget) {
|
|
setHeader(xhr, "Request", "true");
|
|
setHeader(xhr, "Trigger-Id", getRawAttribute(elt, "id"));
|
|
setHeader(xhr, "Trigger-Name", getRawAttribute(elt, "name"));
|
|
setHeader(xhr, "Target-Id", getRawAttribute(target, "id"));
|
|
setHeader(xhr, "Current-URL", getDocument().location.href);
|
|
if (prompt) {
|
|
setHeader(xhr, "Prompt", prompt);
|
|
}
|
|
if (eventTarget) {
|
|
setHeader(xhr, "Event-Target", getRawAttribute(eventTarget, "id"));
|
|
}
|
|
if (getDocument().activeElement) {
|
|
setHeader(xhr, "Active-Element", getRawAttribute(getDocument().activeElement, "id"));
|
|
// noinspection JSUnresolvedVariable
|
|
if (getDocument().activeElement.value) {
|
|
setHeader(xhr, "Active-Element-Value", getDocument().activeElement.value);
|
|
}
|
|
}
|
|
}
|
|
|
|
function filterValues(inputValues, elt, verb) {
|
|
var paramsValue = getClosestAttributeValue(elt, "kt-params");
|
|
if (paramsValue) {
|
|
if (paramsValue === "none") {
|
|
return {};
|
|
} else if (paramsValue === "*") {
|
|
return inputValues;
|
|
} else if(paramsValue.indexOf("not ") === 0) {
|
|
forEach(paramsValue.substr(4).split(","), function (value) {
|
|
value = value.trim();
|
|
delete inputValues[value];
|
|
});
|
|
return inputValues;
|
|
} else {
|
|
var newValues = {}
|
|
forEach(paramsValue.split(","), function (value) {
|
|
newValues[value] = inputValues[value];
|
|
});
|
|
return newValues;
|
|
}
|
|
} else {
|
|
// By default GET does not include parameters
|
|
if (verb === 'get') {
|
|
return {};
|
|
} else {
|
|
return inputValues;
|
|
}
|
|
}
|
|
}
|
|
|
|
function getSwapSpecification(elt) {
|
|
var swapInfo = getClosestAttributeValue(elt, "kt-swap");
|
|
var swapSpec = {
|
|
"swapStyle" : "innerHTML",
|
|
"swapDelay" : 0,
|
|
"settleDelay" : 100
|
|
}
|
|
if (swapInfo) {
|
|
var split = splitOnWhitespace(swapInfo);
|
|
if (split.length > 0) {
|
|
swapSpec["swapStyle"] = split[0];
|
|
for (var i = 1; i < swapSpec.length; i++) {
|
|
var modifier = swapSpec[i];
|
|
if (modifier.indexOf("swap:") === 0) {
|
|
swapSpec["swapDelay"] = parseInterval(modifier.substr(5));
|
|
}
|
|
if (modifier.indexOf("settle:") === 0) {
|
|
swapSpec["settleDelay"] = parseInterval(modifier.substr(7));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return swapSpec;
|
|
}
|
|
|
|
function issueAjaxRequest(elt, verb, path, eventTarget) {
|
|
var eltData = getInternalData(elt);
|
|
if (eltData.requestInFlight) {
|
|
return;
|
|
} else {
|
|
eltData.requestInFlight = true;
|
|
}
|
|
var endRequestLock = function(){
|
|
eltData.requestInFlight = false
|
|
}
|
|
var target = getTarget(elt);
|
|
var promptQuestion = getClosestAttributeValue(elt, "kt-prompt");
|
|
if (promptQuestion) {
|
|
var prompt = prompt(promptQuestion);
|
|
if(!triggerEvent(elt, 'prompt.kutty', {prompt: prompt, target:target})) return endRequestLock();
|
|
}
|
|
|
|
var confirmQuestion = getClosestAttributeValue(elt, "kt-confirm");
|
|
if (confirmQuestion) {
|
|
if(!confirm(confirmQuestion)) return endRequestLock();
|
|
}
|
|
|
|
var xhr = new XMLHttpRequest();
|
|
|
|
var inputValues = getInputValues(elt, verb);
|
|
|
|
inputValues = filterValues(inputValues, elt, verb);
|
|
|
|
if(!triggerEvent(elt, 'values.kutty', {values: inputValues, target:target})) return endRequestLock();
|
|
|
|
// request type
|
|
var requestURL;
|
|
if (verb === 'get') {
|
|
var noValues = Object.keys(inputValues).length === 0;
|
|
xhr.open('GET', path + (noValues ? "" : "?" + urlEncode(inputValues)), true);
|
|
} else {
|
|
requestURL = path;
|
|
xhr.open('POST', requestURL, true);
|
|
setHeader(xhr,'Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8', true);
|
|
if (verb !== 'post') {
|
|
setHeader(xhr, 'X-HTTP-Method-Override', verb.toUpperCase(), true);
|
|
}
|
|
}
|
|
|
|
// TODO IE10 compatibility?
|
|
xhr.overrideMimeType("text/html");
|
|
|
|
// request headers
|
|
setRequestHeaders(xhr, elt, target, prompt, eventTarget);
|
|
|
|
xhr.onload = function () {
|
|
try {
|
|
if (!triggerEvent(elt, 'beforeOnLoad.kutty', {xhr: xhr, target: target})) return;
|
|
|
|
handleTrigger(elt, this.getResponseHeader("X-KT-Trigger"));
|
|
var pushedUrl = this.getResponseHeader("X-KT-Push")
|
|
|
|
var shouldSaveHistory = shouldPush(elt) || pushedUrl;
|
|
|
|
if (this.status >= 200 && this.status < 400) {
|
|
// don't process 'No Content' response
|
|
if (this.status !== 204) {
|
|
// Success!
|
|
var resp = this.response;
|
|
if (!triggerEvent(elt, 'beforeSwap.kutty', {xhr: xhr, target: target, response:resp})) return;
|
|
|
|
// Save current page
|
|
if (shouldSaveHistory) {
|
|
saveHistory();
|
|
}
|
|
|
|
var swapSpec = getSwapSpecification(elt);
|
|
|
|
target.classList.add("kutty-swapping");
|
|
var doSwap = function () {
|
|
try {
|
|
var settleTasks = swapResponse(swapSpec.swapStyle, target, elt, resp);
|
|
target.classList.remove("kutty-swapping");
|
|
target.classList.add("kutty-settling");
|
|
triggerEvent(elt, 'afterSwap.kutty', {xhr: xhr, target: target});
|
|
|
|
var doSettle = function(){
|
|
forEach(settleTasks, function (settleTask) {
|
|
settleTask.call();
|
|
});
|
|
target.classList.remove("kutty-settling");
|
|
// push URL and save new page
|
|
if (shouldSaveHistory) {
|
|
pushUrlIntoHistory(pushedUrl || requestURL );
|
|
saveHistory();
|
|
}
|
|
triggerEvent(elt, 'afterSettle.kutty', {xhr: xhr, target: target});
|
|
}
|
|
|
|
if (swapSpec.settleDelay > 0) {
|
|
setTimeout(doSettle, swapSpec.settleDelay)
|
|
} else {
|
|
doSettle();
|
|
}
|
|
} catch (e) {
|
|
triggerEvent(elt, 'swapError.kutty', {xhr: xhr, response: xhr.response, status: xhr.status, target: target});
|
|
throw e;
|
|
}
|
|
};
|
|
|
|
if (swapSpec.swapDelay > 0) {
|
|
setTimeout(doSwap, parseInterval(swapSpec.swapDelay))
|
|
} else {
|
|
doSwap();
|
|
}
|
|
}
|
|
} else {
|
|
triggerEvent(elt, 'responseError.kutty', {xhr: xhr, response: xhr.response, status: xhr.status, target: target});
|
|
}
|
|
} catch (e) {
|
|
triggerEvent(elt, 'onLoadError.kutty', {xhr: xhr, response: xhr.response, status: xhr.status, target: target});
|
|
throw e;
|
|
} finally {
|
|
removeRequestIndicatorClasses(elt);
|
|
endRequestLock();
|
|
triggerEvent(elt, 'afterOnLoad.kutty', {xhr: xhr, response: xhr.response, status: xhr.status, target: target});
|
|
}
|
|
}
|
|
xhr.onerror = function () {
|
|
removeRequestIndicatorClasses(elt);triggerEvent(elt, 'sendError.kutty', {xhr:xhr});
|
|
endRequestLock();
|
|
}
|
|
if(!triggerEvent(elt, 'beforeRequest.kutty', {xhr:xhr, values: inputValues, target:target})) return endRequestLock();
|
|
addRequestIndicatorClasses(elt);
|
|
xhr.send(verb === 'get' ? null : urlEncode(inputValues));
|
|
}
|
|
|
|
//====================================================================
|
|
// Initialization
|
|
//====================================================================
|
|
|
|
function ready(fn) {
|
|
if (getDocument().readyState !== 'loading') {
|
|
fn();
|
|
} else {
|
|
getDocument().addEventListener('DOMContentLoaded', fn);
|
|
}
|
|
}
|
|
|
|
// insert kutty-indicator css rules
|
|
addRule(".kutty-indicator{opacity:0;transition: opacity 200ms ease-in;}");
|
|
addRule(".kutty-request .kutty-indicator{opacity:1}");
|
|
addRule(".kutty-request.kutty-indicator{opacity:1}");
|
|
|
|
// initialize the document
|
|
ready(function () {
|
|
var body = getDocument().body;
|
|
processNode(body);
|
|
triggerEvent(body, 'load.kutty', {elt: body});
|
|
window.onpopstate = function () {
|
|
restoreHistory();
|
|
};
|
|
})
|
|
|
|
function internalEval(str){
|
|
return eval(str);
|
|
}
|
|
|
|
function onLoadHelper(callback) {
|
|
kutty.on("load.kutty", function(evt) {
|
|
callback(evt.detail.elt);
|
|
});
|
|
}
|
|
|
|
// Public API
|
|
return {
|
|
processElement: processNode,
|
|
on: addKuttyEventListener,
|
|
onLoad: onLoadHelper,
|
|
version: "0.0.1",
|
|
_:internalEval
|
|
}
|
|
}
|
|
)(); |