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!function() {
'use strict';
function VNode() {}
function h(nodeName, attributes) {
var lastSimple, child, simple, i, children = EMPTY_CHILDREN;
for (i = arguments.length; i-- > 2; ) stack.push(arguments[i]);
if (attributes && null != attributes.children) {
if (!stack.length) stack.push(attributes.children);
delete attributes.children;
}
while (stack.length) if ((child = stack.pop()) && void 0 !== child.pop) for (i = child.length; i--; ) stack.push(child[i]); else {
if ('boolean' == typeof child) child = null;
if (simple = 'function' != typeof nodeName) if (null == child) child = ''; else if ('number' == typeof child) child = String(child); else if ('string' != typeof child) simple = !1;
if (simple && lastSimple) children[children.length - 1] += child; else if (children === EMPTY_CHILDREN) children = [ child ]; else children.push(child);
lastSimple = simple;
}
var p = new VNode();
p.nodeName = nodeName;
p.children = children;
p.attributes = null == attributes ? void 0 : attributes;
p.key = null == attributes ? void 0 : attributes.key;
if (void 0 !== options.vnode) options.vnode(p);
return p;
}
function extend(obj, props) {
for (var i in props) obj[i] = props[i];
return obj;
}
function cloneElement(vnode, props) {
return h(vnode.nodeName, extend(extend({}, vnode.attributes), props), arguments.length > 2 ? [].slice.call(arguments, 2) : vnode.children);
}
function enqueueRender(component) {
if (!component.__d && (component.__d = !0) && 1 == items.push(component)) (options.debounceRendering || defer)(rerender);
}
function rerender() {
var p, list = items;
items = [];
while (p = list.pop()) if (p.__d) renderComponent(p);
}
function isSameNodeType(node, vnode, hydrating) {
if ('string' == typeof vnode || 'number' == typeof vnode) return void 0 !== node.splitText;
if ('string' == typeof vnode.nodeName) return !node._componentConstructor && isNamedNode(node, vnode.nodeName); else return hydrating || node._componentConstructor === vnode.nodeName;
}
function isNamedNode(node, nodeName) {
return node.__n === nodeName || node.nodeName.toLowerCase() === nodeName.toLowerCase();
}
function getNodeProps(vnode) {
var props = extend({}, vnode.attributes);
props.children = vnode.children;
var defaultProps = vnode.nodeName.defaultProps;
if (void 0 !== defaultProps) for (var i in defaultProps) if (void 0 === props[i]) props[i] = defaultProps[i];
return props;
}
function createNode(nodeName, isSvg) {
var node = isSvg ? document.createElementNS('http://www.w3.org/2000/svg', nodeName) : document.createElement(nodeName);
node.__n = nodeName;
return node;
}
function removeNode(node) {
var parentNode = node.parentNode;
if (parentNode) parentNode.removeChild(node);
}
function setAccessor(node, name, old, value, isSvg) {
if ('className' === name) name = 'class';
if ('key' === name) ; else if ('ref' === name) {
if (old) old(null);
if (value) value(node);
} else if ('class' === name && !isSvg) node.className = value || ''; else if ('style' === name) {
if (!value || 'string' == typeof value || 'string' == typeof old) node.style.cssText = value || '';
if (value && 'object' == typeof value) {
if ('string' != typeof old) for (var i in old) if (!(i in value)) node.style[i] = '';
for (var i in value) node.style[i] = 'number' == typeof value[i] && !1 === IS_NON_DIMENSIONAL.test(i) ? value[i] + 'px' : value[i];
}
} else if ('dangerouslySetInnerHTML' === name) {
if (value) node.innerHTML = value.__html || '';
} else if ('o' == name[0] && 'n' == name[1]) {
var useCapture = name !== (name = name.replace(/Capture$/, ''));
name = name.toLowerCase().substring(2);
if (value) {
if (!old) node.addEventListener(name, eventProxy, useCapture);
} else node.removeEventListener(name, eventProxy, useCapture);
(node.__l || (node.__l = {}))[name] = value;
} else if ('list' !== name && 'type' !== name && !isSvg && name in node) {
setProperty(node, name, null == value ? '' : value);
if (null == value || !1 === value) node.removeAttribute(name);
} else {
var ns = isSvg && name !== (name = name.replace(/^xlink\:?/, ''));
if (null == value || !1 === value) if (ns) node.removeAttributeNS('http://www.w3.org/1999/xlink', name.toLowerCase()); else node.removeAttribute(name); else if ('function' != typeof value) if (ns) node.setAttributeNS('http://www.w3.org/1999/xlink', name.toLowerCase(), value); else node.setAttribute(name, value);
}
}
function setProperty(node, name, value) {
try {
node[name] = value;
} catch (e) {}
}
function eventProxy(e) {
return this.__l[e.type](options.event && options.event(e) || e);
}
function flushMounts() {
var c;
while (c = mounts.pop()) {
if (options.afterMount) options.afterMount(c);
if (c.componentDidMount) c.componentDidMount();
}
}
function diff(dom, vnode, context, mountAll, parent, componentRoot) {
if (!diffLevel++) {
isSvgMode = null != parent && void 0 !== parent.ownerSVGElement;
hydrating = null != dom && !('__preactattr_' in dom);
}
var ret = idiff(dom, vnode, context, mountAll, componentRoot);
if (parent && ret.parentNode !== parent) parent.appendChild(ret);
if (!--diffLevel) {
hydrating = !1;
if (!componentRoot) flushMounts();
}
return ret;
}
function idiff(dom, vnode, context, mountAll, componentRoot) {
var out = dom, prevSvgMode = isSvgMode;
if (null == vnode || 'boolean' == typeof vnode) vnode = '';
if ('string' == typeof vnode || 'number' == typeof vnode) {
if (dom && void 0 !== dom.splitText && dom.parentNode && (!dom._component || componentRoot)) {
if (dom.nodeValue != vnode) dom.nodeValue = vnode;
} else {
out = document.createTextNode(vnode);
if (dom) {
if (dom.parentNode) dom.parentNode.replaceChild(out, dom);
recollectNodeTree(dom, !0);
}
}
out.__preactattr_ = !0;
return out;
}
var vnodeName = vnode.nodeName;
if ('function' == typeof vnodeName) return buildComponentFromVNode(dom, vnode, context, mountAll);
isSvgMode = 'svg' === vnodeName ? !0 : 'foreignObject' === vnodeName ? !1 : isSvgMode;
vnodeName = String(vnodeName);
if (!dom || !isNamedNode(dom, vnodeName)) {
out = createNode(vnodeName, isSvgMode);
if (dom) {
while (dom.firstChild) out.appendChild(dom.firstChild);
if (dom.parentNode) dom.parentNode.replaceChild(out, dom);
recollectNodeTree(dom, !0);
}
}
var fc = out.firstChild, props = out.__preactattr_, vchildren = vnode.children;
if (null == props) {
props = out.__preactattr_ = {};
for (var a = out.attributes, i = a.length; i--; ) props[a[i].name] = a[i].value;
}
if (!hydrating && vchildren && 1 === vchildren.length && 'string' == typeof vchildren[0] && null != fc && void 0 !== fc.splitText && null == fc.nextSibling) {
if (fc.nodeValue != vchildren[0]) fc.nodeValue = vchildren[0];
} else if (vchildren && vchildren.length || null != fc) innerDiffNode(out, vchildren, context, mountAll, hydrating || null != props.dangerouslySetInnerHTML);
diffAttributes(out, vnode.attributes, props);
isSvgMode = prevSvgMode;
return out;
}
function innerDiffNode(dom, vchildren, context, mountAll, isHydrating) {
var j, c, f, vchild, child, originalChildren = dom.childNodes, children = [], keyed = {}, keyedLen = 0, min = 0, len = originalChildren.length, childrenLen = 0, vlen = vchildren ? vchildren.length : 0;
if (0 !== len) for (var i = 0; i < len; i++) {
var _child = originalChildren[i], props = _child.__preactattr_, key = vlen && props ? _child._component ? _child._component.__k : props.key : null;
if (null != key) {
keyedLen++;
keyed[key] = _child;
} else if (props || (void 0 !== _child.splitText ? isHydrating ? _child.nodeValue.trim() : !0 : isHydrating)) children[childrenLen++] = _child;
}
if (0 !== vlen) for (var i = 0; i < vlen; i++) {
vchild = vchildren[i];
child = null;
var key = vchild.key;
if (null != key) {
if (keyedLen && void 0 !== keyed[key]) {
child = keyed[key];
keyed[key] = void 0;
keyedLen--;
}
} else if (!child && min < childrenLen) for (j = min; j < childrenLen; j++) if (void 0 !== children[j] && isSameNodeType(c = children[j], vchild, isHydrating)) {
child = c;
children[j] = void 0;
if (j === childrenLen - 1) childrenLen--;
if (j === min) min++;
break;
}
child = idiff(child, vchild, context, mountAll);
f = originalChildren[i];
if (child && child !== dom && child !== f) if (null == f) dom.appendChild(child); else if (child === f.nextSibling) removeNode(f); else dom.insertBefore(child, f);
}
if (keyedLen) for (var i in keyed) if (void 0 !== keyed[i]) recollectNodeTree(keyed[i], !1);
while (min <= childrenLen) if (void 0 !== (child = children[childrenLen--])) recollectNodeTree(child, !1);
}
function recollectNodeTree(node, unmountOnly) {
var component = node._component;
if (component) unmountComponent(component); else {
if (null != node.__preactattr_ && node.__preactattr_.ref) node.__preactattr_.ref(null);
if (!1 === unmountOnly || null == node.__preactattr_) removeNode(node);
removeChildren(node);
}
}
function removeChildren(node) {
node = node.lastChild;
while (node) {
var next = node.previousSibling;
recollectNodeTree(node, !0);
node = next;
}
}
function diffAttributes(dom, attrs, old) {
var name;
for (name in old) if ((!attrs || null == attrs[name]) && null != old[name]) setAccessor(dom, name, old[name], old[name] = void 0, isSvgMode);
for (name in attrs) if (!('children' === name || 'innerHTML' === name || name in old && attrs[name] === ('value' === name || 'checked' === name ? dom[name] : old[name]))) setAccessor(dom, name, old[name], old[name] = attrs[name], isSvgMode);
}
function collectComponent(component) {
var name = component.constructor.name;
(components[name] || (components[name] = [])).push(component);
}
function createComponent(Ctor, props, context) {
var inst, list = components[Ctor.name];
if (Ctor.prototype && Ctor.prototype.render) {
inst = new Ctor(props, context);
Component.call(inst, props, context);
} else {
inst = new Component(props, context);
inst.constructor = Ctor;
inst.render = doRender;
}
if (list) for (var i = list.length; i--; ) if (list[i].constructor === Ctor) {
inst.__b = list[i].__b;
list.splice(i, 1);
break;
}
return inst;
}
function doRender(props, state, context) {
return this.constructor(props, context);
}
function setComponentProps(component, props, opts, context, mountAll) {
if (!component.__x) {
component.__x = !0;
if (component.__r = props.ref) delete props.ref;
if (component.__k = props.key) delete props.key;
if (!component.base || mountAll) {
if (component.componentWillMount) component.componentWillMount();
} else if (component.componentWillReceiveProps) component.componentWillReceiveProps(props, context);
if (context && context !== component.context) {
if (!component.__c) component.__c = component.context;
component.context = context;
}
if (!component.__p) component.__p = component.props;
component.props = props;
component.__x = !1;
if (0 !== opts) if (1 === opts || !1 !== options.syncComponentUpdates || !component.base) renderComponent(component, 1, mountAll); else enqueueRender(component);
if (component.__r) component.__r(component);
}
}
function renderComponent(component, opts, mountAll, isChild) {
if (!component.__x) {
var rendered, inst, cbase, props = component.props, state = component.state, context = component.context, previousProps = component.__p || props, previousState = component.__s || state, previousContext = component.__c || context, isUpdate = component.base, nextBase = component.__b, initialBase = isUpdate || nextBase, initialChildComponent = component._component, skip = !1;
if (isUpdate) {
component.props = previousProps;
component.state = previousState;
component.context = previousContext;
if (2 !== opts && component.shouldComponentUpdate && !1 === component.shouldComponentUpdate(props, state, context)) skip = !0; else if (component.componentWillUpdate) component.componentWillUpdate(props, state, context);
component.props = props;
component.state = state;
component.context = context;
}
component.__p = component.__s = component.__c = component.__b = null;
component.__d = !1;
if (!skip) {
rendered = component.render(props, state, context);
if (component.getChildContext) context = extend(extend({}, context), component.getChildContext());
var toUnmount, base, childComponent = rendered && rendered.nodeName;
if ('function' == typeof childComponent) {
var childProps = getNodeProps(rendered);
inst = initialChildComponent;
if (inst && inst.constructor === childComponent && childProps.key == inst.__k) setComponentProps(inst, childProps, 1, context, !1); else {
toUnmount = inst;
component._component = inst = createComponent(childComponent, childProps, context);
inst.__b = inst.__b || nextBase;
inst.__u = component;
setComponentProps(inst, childProps, 0, context, !1);
renderComponent(inst, 1, mountAll, !0);
}
base = inst.base;
} else {
cbase = initialBase;
toUnmount = initialChildComponent;
if (toUnmount) cbase = component._component = null;
if (initialBase || 1 === opts) {
if (cbase) cbase._component = null;
base = diff(cbase, rendered, context, mountAll || !isUpdate, initialBase && initialBase.parentNode, !0);
}
}
if (initialBase && base !== initialBase && inst !== initialChildComponent) {
var baseParent = initialBase.parentNode;
if (baseParent && base !== baseParent) {
baseParent.replaceChild(base, initialBase);
if (!toUnmount) {
initialBase._component = null;
recollectNodeTree(initialBase, !1);
}
}
}
if (toUnmount) unmountComponent(toUnmount);
component.base = base;
if (base && !isChild) {
var componentRef = component, t = component;
while (t = t.__u) (componentRef = t).base = base;
base._component = componentRef;
base._componentConstructor = componentRef.constructor;
}
}
if (!isUpdate || mountAll) mounts.unshift(component); else if (!skip) {
if (component.componentDidUpdate) component.componentDidUpdate(previousProps, previousState, previousContext);
if (options.afterUpdate) options.afterUpdate(component);
}
if (null != component.__h) while (component.__h.length) component.__h.pop().call(component);
if (!diffLevel && !isChild) flushMounts();
}
}
function buildComponentFromVNode(dom, vnode, context, mountAll) {
var c = dom && dom._component, originalComponent = c, oldDom = dom, isDirectOwner = c && dom._componentConstructor === vnode.nodeName, isOwner = isDirectOwner, props = getNodeProps(vnode);
while (c && !isOwner && (c = c.__u)) isOwner = c.constructor === vnode.nodeName;
if (c && isOwner && (!mountAll || c._component)) {
setComponentProps(c, props, 3, context, mountAll);
dom = c.base;
} else {
if (originalComponent && !isDirectOwner) {
unmountComponent(originalComponent);
dom = oldDom = null;
}
c = createComponent(vnode.nodeName, props, context);
if (dom && !c.__b) {
c.__b = dom;
oldDom = null;
}
setComponentProps(c, props, 1, context, mountAll);
dom = c.base;
if (oldDom && dom !== oldDom) {
oldDom._component = null;
recollectNodeTree(oldDom, !1);
}
}
return dom;
}
function unmountComponent(component) {
if (options.beforeUnmount) options.beforeUnmount(component);
var base = component.base;
component.__x = !0;
if (component.componentWillUnmount) component.componentWillUnmount();
component.base = null;
var inner = component._component;
if (inner) unmountComponent(inner); else if (base) {
if (base.__preactattr_ && base.__preactattr_.ref) base.__preactattr_.ref(null);
component.__b = base;
removeNode(base);
collectComponent(component);
removeChildren(base);
}
if (component.__r) component.__r(null);
}
function Component(props, context) {
this.__d = !0;
this.context = context;
this.props = props;
this.state = this.state || {};
}
function render(vnode, parent, merge) {
return diff(merge, vnode, {}, !1, parent, !1);
}
var options = {};
var stack = [];
var EMPTY_CHILDREN = [];
var defer = 'function' == typeof Promise ? Promise.resolve().then.bind(Promise.resolve()) : setTimeout;
var IS_NON_DIMENSIONAL = /acit|ex(?:s|g|n|p|$)|rph|ows|mnc|ntw|ine[ch]|zoo|^ord/i;
var items = [];
var mounts = [];
var diffLevel = 0;
var isSvgMode = !1;
var hydrating = !1;
var components = {};
extend(Component.prototype, {
setState: function(state, callback) {
var s = this.state;
if (!this.__s) this.__s = extend({}, s);
extend(s, 'function' == typeof state ? state(s, this.props) : state);
if (callback) (this.__h = this.__h || []).push(callback);
enqueueRender(this);
},
forceUpdate: function(callback) {
if (callback) (this.__h = this.__h || []).push(callback);
renderComponent(this, 2);
},
render: function() {}
});
var preact = {
h: h,
createElement: h,
cloneElement: cloneElement,
Component: Component,
render: render,
rerender: rerender,
options: options
};
if ('undefined' != typeof module) module.exports = preact; else self.preact = preact;
}();
//# sourceMappingURL=preact.js.map
|
