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Merge branch 'next' of https://github.com/lhorie/mithril.js into perf-update

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This commit is contained in:
Isiah Meadows 2017-03-03 18:28:07 -05:00
commit c0061a8eb9
7 changed files with 337 additions and 204 deletions
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27
docs/keys.md
View file

@ -177,3 +177,30 @@ m("div", [
]
])
```
#### Avoid passing model data directly to components if the model uses `key` as a data property
The `key` property may appear in your data model in a way that conflicts with Mithril's key logic. For example, a component may represent an entity whose `key` property is expected to change over time. This can lead to components receiving the wrong data, re-initialise, or change positions unexpectedly. If your data model uses the `key` property, make sure to wrap the data such that Mithril doesn't misinterpret it as a rendering instruction:
```javascript
// Data model
var users = [
{id: 1, name: "John", key: 'a'},
{id: 2, name: "Mary", key: 'b'},
]
// Later on...
users[0].key = 'c'
// AVOID
users.map(function(user){
// The component for John will be destroyed and recreated
return m(UserComponent, user)
})
// PREFER
users.map(function(user){
// Key is specifically extracted: data model is given its own property
return m(UserComponent, {key: user.id, model: user})
})
```

22
mithril.d.ts vendored
View file

@ -238,6 +238,18 @@ declare namespace Mithril {
/** A special value that can be returned to stream callbacks to halt execution of downstreams. */
HALT: any;
}
interface StreamScan {
/** Creates a new stream with the results of calling the function on every incoming stream with and accumulator and the incoming value. */
<T,U>(fn: (acc: U, value: T) => U, acc: U, stream: Stream<T>): Stream<U>;
}
interface StreamScanMerge {
/** Takes an array of pairs of streams and scan functions and merges all those streams using the given functions into a single stream. */
<T,U>(pairs: [Stream<T>, (acc: U, value: T) => U][], acc: U): Stream<U>;
/** Takes an array of pairs of streams and scan functions and merges all those streams using the given functions into a single stream. */
<U>(pairs: [Stream<any>, (acc: U, value: any) => U][], acc: U): Stream<U>;
}
}
declare module 'mithril' {
@ -284,3 +296,13 @@ declare module 'mithril/stream' {
const s: Mithril.StreamFactory;
export = s;
}
declare module 'mithril/stream/scan' {
const s: Mithril.StreamScan;
export = s;
}
declare module 'mithril/stream/scanMerge' {
const sm: Mithril.StreamScanMerge;
export = sm;
}

33
mithril.js
View file

@ -368,8 +368,8 @@ var coreRenderer = function($window) {
}
function createNode(parent, vnode, hooks, ns, nextSibling) {
var tag = vnode.tag
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
if (typeof tag === "string") {
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
switch (tag) {
case "#": return createText(parent, vnode, nextSibling)
case "<": return createHTML(parent, vnode, nextSibling)
@ -442,7 +442,7 @@ var coreRenderer = function($window) {
}
return element
}
function createComponent(parent, vnode, hooks, ns, nextSibling) {
function initComponent(vnode, hooks) {
var sentinel
if (typeof vnode.tag === "function") {
vnode.state = null
@ -457,9 +457,13 @@ var coreRenderer = function($window) {
if (sentinel.$$reentrantLock$$ != null) return $emptyFragment
sentinel.$$reentrantLock$$ = true
}
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
initLifecycle(vnode.state, vnode, hooks)
vnode.instance = Vnode.normalize(vnode.state.view(vnode))
sentinel.$$reentrantLock$$ = null
}
function createComponent(parent, vnode, hooks, ns, nextSibling) {
initComponent(vnode, hooks)
if (vnode.instance != null) {
if (vnode.instance === vnode) throw Error("A view cannot return the vnode it received as arguments")
var element = createNode(parent, vnode.instance, hooks, ns, nextSibling)
@ -570,11 +574,12 @@ var coreRenderer = function($window) {
if (oldTag === tag) {
vnode.state = old.state
vnode.events = old.events
if (shouldUpdate(vnode, old)) return
if (vnode.attrs != null) {
updateLifecycle(vnode.attrs, vnode, hooks, recycling)
}
if (!recycling && shouldNotUpdate(vnode, old)) return
if (typeof oldTag === "string") {
if (vnode.attrs != null) {
if (recycling) initLifecycle(vnode.attrs, vnode, hooks)
else updateLifecycle(vnode.attrs, vnode, hooks)
}
switch (oldTag) {
case "#": updateText(old, vnode); break
case "<": updateHTML(parent, old, vnode, nextSibling); break
@ -644,8 +649,13 @@ var coreRenderer = function($window) {
}
}
function updateComponent(parent, old, vnode, hooks, nextSibling, recycling, ns) {
vnode.instance = Vnode.normalize(vnode.state.view(vnode))
updateLifecycle(vnode.state, vnode, hooks, recycling)
if (recycling) {
initComponent(vnode, hooks)
} else {
vnode.instance = Vnode.normalize(vnode.state.view(vnode))
if (vnode.attrs != null) updateLifecycle(vnode.attrs, vnode, hooks)
updateLifecycle(vnode.state, vnode, hooks)
}
if (vnode.instance != null) {
if (old.instance == null) createNode(parent, vnode.instance, hooks, ns, nextSibling)
else updateNode(parent, old.instance, vnode.instance, hooks, nextSibling, recycling, ns)
@ -897,11 +907,10 @@ var coreRenderer = function($window) {
if (typeof source.oninit === "function") source.oninit.call(vnode.state, vnode)
if (typeof source.oncreate === "function") hooks.push(source.oncreate.bind(vnode.state, vnode))
}
function updateLifecycle(source, vnode, hooks, recycling) {
if (recycling) initLifecycle(source, vnode, hooks)
else if (typeof source.onupdate === "function") hooks.push(source.onupdate.bind(vnode.state, vnode))
function updateLifecycle(source, vnode, hooks) {
if (typeof source.onupdate === "function") hooks.push(source.onupdate.bind(vnode.state, vnode))
}
function shouldUpdate(vnode, old) {
function shouldNotUpdate(vnode, old) {
var forceVnodeUpdate, forceComponentUpdate
if (vnode.attrs != null && typeof vnode.attrs.onbeforeupdate === "function") forceVnodeUpdate = vnode.attrs.onbeforeupdate.call(vnode.state, vnode, old)
if (typeof vnode.tag !== "string" && typeof vnode.state.onbeforeupdate === "function") forceComponentUpdate = vnode.state.onbeforeupdate(vnode, old)

86
mithril.min.js vendored
View file

@ -1,43 +1,43 @@
new function(){function w(a,d,h,f,g,l){return{tag:a,key:d,attrs:h,children:f,text:g,dom:l,domSize:void 0,state:{},events:void 0,instance:void 0,skip:!1}}function A(a){if(null==a||"string"!==typeof a&&"function"!==typeof a&&"function"!==typeof a.view)throw Error("The selector must be either a string or a component.");if("string"===typeof a&&void 0===H[a]){for(var d,h,f=[],g={};d=O.exec(a);){var l=d[1],k=d[2];""===l&&""!==k?h=k:"#"===l?g.id=k:"."===l?f.push(k):"["===d[3][0]&&((l=d[6])&&(l=l.replace(/\\(["'])/g,
"$1").replace(/\\\\/g,"\\")),"class"===d[4]?f.push(l):g[d[4]]=l||!0)}0<f.length&&(g.className=f.join(" "));H[a]=function(a,d){var l=!1,c,f,p=a.className||a["class"],q;for(q in g)a[q]=g[q];void 0!==p&&(void 0!==a["class"]&&(a["class"]=void 0,a.className=p),void 0!==g.className&&(a.className=g.className+" "+p));for(q in a)if("key"!==q){l=!0;break}Array.isArray(d)&&1==d.length&&null!=d[0]&&"#"===d[0].tag?f=d[0].children:c=d;return w(h||"div",a.key,l?a:void 0,c,f,void 0)}}var q;null==arguments[1]||"object"===
typeof arguments[1]&&void 0===arguments[1].tag&&!Array.isArray(arguments[1])?(q=arguments[1],f=2):f=1;if(arguments.length===f+1)d=Array.isArray(arguments[f])?arguments[f]:[arguments[f]];else for(d=[];f<arguments.length;f++)d.push(arguments[f]);return"string"===typeof a?H[a](q||{},w.normalizeChildren(d)):w(a,q&&q.key,q||{},w.normalizeChildren(d),void 0,void 0)}function P(a){var d=0,h=null,f="function"===typeof requestAnimationFrame?requestAnimationFrame:setTimeout;return function(){var g=Date.now();
0===d||16<=g-d?(d=g,a()):null===h&&(h=f(function(){h=null;a();d=Date.now()},16-(g-d)))}}w.normalize=function(a){return Array.isArray(a)?w("[",void 0,void 0,w.normalizeChildren(a),void 0,void 0):null!=a&&"object"!==typeof a?w("#",void 0,void 0,!1===a?"":a,void 0,void 0):a};w.normalizeChildren=function(a){for(var d=0;d<a.length;d++)a[d]=w.normalize(a[d]);return a};var O=/(?:(^|#|\.)([^#\.\[\]]+))|(\[(.+?)(?:\s*=\s*("|'|)((?:\\["'\]]|.)*?)\5)?\])/g,H={};A.trust=function(a){null==a&&(a="");return w("<",
void 0,void 0,a,void 0,void 0)};A.fragment=function(a,d){return w("[",a.key,a,w.normalizeChildren(d),void 0,void 0)};var v=function(a){function d(a,c){return function z(d){var k;try{if(!c||null==d||"object"!==typeof d&&"function"!==typeof d||"function"!==typeof(k=d.then))r(function(){c||0!==a.length||console.error("Possible unhandled promise rejection:",d);for(var f=0;f<a.length;f++)a[f](d);g.length=0;l.length=0;p.state=c;p.retry=function(){z(d)}});else{if(d===f)throw new TypeError("Promise can't be resolved w/ itself");
h(k.bind(d))}}catch(Q){q(Q)}}}function h(a){function c(c){return function(a){0<d++||c(a)}}var d=0,f=c(q);try{a(c(k),f)}catch(D){f(D)}}if(!(this instanceof v))throw Error("Promise must be called with `new`");if("function"!==typeof a)throw new TypeError("executor must be a function");var f=this,g=[],l=[],k=d(g,!0),q=d(l,!1),p=f._instance={resolvers:g,rejectors:l},r="function"===typeof setImmediate?setImmediate:setTimeout;h(a)};v.prototype.then=function(a,d){function h(a,d,h,k){d.push(function(c){if("function"!==
typeof a)h(c);else try{g(a(c))}catch(t){l&&l(t)}});"function"===typeof f.retry&&k===f.state&&f.retry()}var f=this._instance,g,l,k=new v(function(a,d){g=a;l=d});h(a,f.resolvers,g,!0);h(d,f.rejectors,l,!1);return k};v.prototype["catch"]=function(a){return this.then(null,a)};v.resolve=function(a){return a instanceof v?a:new v(function(d){d(a)})};v.reject=function(a){return new v(function(d,h){h(a)})};v.all=function(a){return new v(function(d,h){var f=a.length,g=0,l=[];if(0===a.length)d([]);else for(var k=
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f){if(Array.isArray(f))for(var g=0;g<f.length;g++)d(a+"["+g+"]",f[g]);else if("[object Object]"===Object.prototype.toString.call(f))for(g in f)d(a+"["+g+"]",f[g]);else h.push(encodeURIComponent(a)+(null!=f&&""!==f?"="+encodeURIComponent(f):""))}if("[object Object]"!==Object.prototype.toString.call(a))return"";var h=[],f;for(f in a)d(f,a[f]);return h.join("&")},R=/^file:\/\//i,K=function(a,d){function h(){function c(){0===--a&&"function"===typeof u&&u()}var a=0;return function D(d){var f=d.then;d.then=
function(){a++;var g=f.apply(d,arguments);g.then(c,function(d){c();if(0===a)throw d;});return D(g)};return d}}function f(c,a){if("string"===typeof c){var d=c;c=a||{};null==c.url&&(c.url=d)}return c}function g(c,a){if(null==a)return c;for(var d=c.match(/:[^\/]+/gi)||[],f=0;f<d.length;f++){var g=d[f].slice(1);null!=a[g]&&(c=c.replace(d[f],a[g]))}return c}function l(c,a){var d=F(a);if(""!==d){var f=0>c.indexOf("?")?"?":"&";c+=f+d}return c}function k(c){try{return""!==c?JSON.parse(c):null}catch(t){throw Error(c);
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"application/json; charset=utf-8");c.deserialize===k&&n.setRequestHeader("Accept","application/json, text/*");c.withCredentials&&(n.withCredentials=c.withCredentials);for(var m in c.headers)({}).hasOwnProperty.call(c.headers,m)&&n.setRequestHeader(m,c.headers[m]);"function"===typeof c.config&&(n=c.config(n,c)||n);n.onreadystatechange=function(){if(!u&&4===n.readyState)try{var b=c.extract!==q?c.extract(n,c):c.deserialize(c.extract(n,c));if(200<=n.status&&300>n.status||304===n.status||R.test(c.url))d(p(c.type,
b));else{var m=Error(n.responseText),a;for(a in b)m[a]=b[a];f(m)}}catch(C){f(C)}};h&&null!=c.data?n.send(c.data):n.send()});return!0===c.background?t:r(t)},jsonp:function(c,k){var q=h();c=f(c,k);var u=new d(function(d,f){var h=c.callbackName||"_mithril_"+Math.round(1E16*Math.random())+"_"+r++,k=a.document.createElement("script");a[h]=function(f){k.parentNode.removeChild(k);d(p(c.type,f));delete a[h]};k.onerror=function(){k.parentNode.removeChild(k);f(Error("JSONP request failed"));delete a[h]};null==
c.data&&(c.data={});c.url=g(c.url,c.data);c.data[c.callbackKey||"callback"]=h;k.src=l(c.url,c.data);a.document.documentElement.appendChild(k)});return!0===c.background?u:q(u)},setCompletionCallback:function(a){u=a}}}(window,v),N=function(a){function d(a,b,c,d,f,g,k){for(;c<d;c++){var m=b[c];null!=m&&h(a,m,f,k,g)}}function h(a,b,c,x,g){var m=b.tag;null!=b.attrs&&v(b.attrs,b,c);if("string"===typeof m)switch(m){case "#":return b.dom=n.createTextNode(b.children),p(a,b.dom,g),b.dom;case "<":return f(a,
b,g);case "[":var e=n.createDocumentFragment();null!=b.children&&(m=b.children,d(e,m,0,m.length,c,null,x));b.dom=e.firstChild;b.domSize=e.childNodes.length;p(a,e,g);return e;default:var k=b.tag;switch(b.tag){case "svg":x="http://www.w3.org/2000/svg";break;case "math":x="http://www.w3.org/1998/Math/MathML"}var l=(m=b.attrs)&&m.is,k=x?l?n.createElementNS(x,k,{is:l}):n.createElementNS(x,k):l?n.createElement(k,{is:l}):n.createElement(k);b.dom=k;if(null!=m)for(e in l=x,m)z(b,e,null,m[e],l);p(a,k,g);null!=
b.attrs&&null!=b.attrs.contenteditable?r(b):(null!=b.text&&(""!==b.text?k.textContent=b.text:b.children=[w("#",void 0,void 0,b.text,void 0,void 0)]),null!=b.children&&(a=b.children,d(k,a,0,a.length,c,null,x),a=b.attrs,"select"===b.tag&&null!=a&&("value"in a&&z(b,"value",null,a.value,void 0),"selectedIndex"in a&&z(b,"selectedIndex",null,a.selectedIndex,void 0))));return k}else{a:{if("function"===typeof b.tag){b.state=null;e=b.tag;if(null!=e.$$reentrantLock$$){b=I;break a}e.$$reentrantLock$$=!0;b.state=
null!=b.tag.prototype&&"function"===typeof b.tag.prototype.view?new b.tag(b):b.tag(b)}else{b.state=Object.create(b.tag);e=b.state.view;if(null!=e.$$reentrantLock$$){b=I;break a}e.$$reentrantLock$$=!0}v(b.state,b,c);b.instance=w.normalize(b.state.view(b));e.$$reentrantLock$$=null;if(null!=b.instance){if(b.instance===b)throw Error("A view cannot return the vnode it received as arguments");c=h(a,b.instance,c,x,g);b.dom=b.instance.dom;b.domSize=null!=b.dom?b.instance.domSize:0;p(a,c,g);b=c}else b.domSize=
0,b=I}return b}}function f(a,b,c){var m={caption:"table",thead:"table",tbody:"table",tfoot:"table",tr:"tbody",th:"tr",td:"tr",colgroup:"table",col:"colgroup"}[(b.children.match(/^\s*?<(\w+)/im)||[])[1]]||"div",m=n.createElement(m);m.innerHTML=b.children;b.dom=m.firstChild;b.domSize=m.childNodes.length;b=n.createDocumentFragment();for(var e;e=m.firstChild;)b.appendChild(e);p(a,b,c);return b}function g(a,b,c,f,g,B,n){if(b!==c&&(null!=b||null!=c))if(null==b)d(a,c,0,c.length,g,B,void 0);else if(null==
c)u(b,0,b.length,c);else{if(b.length===c.length){for(var m=!1,e=0;e<c.length;e++)if(null!=c[e]&&null!=b[e]){m=null==c[e].key&&null==b[e].key;break}if(m){for(e=0;e<b.length;e++)b[e]!==c[e]&&(null==b[e]&&null!=c[e]?h(a,c[e],g,n,q(b,e+1,B)):null==c[e]?u(b,e,e+1,c):l(a,b[e],c[e],g,q(b,e+1,B),f,n));return}}if(!f)a:{if(null!=b.pool&&Math.abs(b.pool.length-c.length)<=Math.abs(b.length-c.length)&&(f=c[0]&&c[0].children&&c[0].children.length||0,Math.abs((b.pool[0]&&b.pool[0].children&&b.pool[0].children.length||
0)-f)<=Math.abs((b[0]&&b[0].children&&b[0].children.length||0)-f))){f=!0;break a}f=!1}if(f){var x=b.pool;b=b.concat(b.pool)}for(var e=m=0,r=b.length-1,t=c.length-1,E;r>=m&&t>=e;){var y=b[m],z=c[e];if(y!==z||f)if(null==y)m++;else if(null==z)e++;else if(y.key===z.key){var C=null!=x&&m>=b.length-x.length||null==x&&f;m++;e++;l(a,y,z,g,q(b,m,B),C,n);f&&y.tag===z.tag&&p(a,k(y),B)}else if(y=b[r],y!==z||f)if(null==y)r--;else if(null==z)e++;else if(y.key===z.key)C=null!=x&&r>=b.length-x.length||null==x&&f,
l(a,y,z,g,q(b,r+1,B),C,n),(f||e<t)&&p(a,k(y),q(b,m,B)),r--,e++;else break;else r--,e++;else m++,e++}for(;r>=m&&t>=e;){y=b[r];z=c[t];if(y!==z||f)if(null==y)r--;else{if(null!=z)if(y.key===z.key)C=null!=x&&r>=b.length-x.length||null==x&&f,l(a,y,z,g,q(b,r+1,B),C,n),f&&y.tag===z.tag&&p(a,k(y),B),null!=y.dom&&(B=y.dom),r--;else{if(!E){E=b;var y=r,C={},v;for(v=0;v<y;v++){var w=E[v];null!=w&&(w=w.key,null!=w&&(C[w]=v))}E=C}null!=z&&(y=E[z.key],null!=y?(C=b[y],l(a,C,z,g,q(b,r+1,B),f,n),p(a,k(C),B),b[y].skip=
!0,null!=C.dom&&(B=C.dom)):B=h(a,z,g,void 0,B))}t--}else r--,t--;if(t<e)break}d(a,c,e,t+1,g,B,n);u(b,m,r+1,c)}}function l(a,b,e,d,p,n,q){var m=b.tag;if(m===e.tag){e.state=b.state;e.events=b.events;var x;var u;null!=e.attrs&&"function"===typeof e.attrs.onbeforeupdate&&(x=e.attrs.onbeforeupdate.call(e.state,e,b));"string"!==typeof e.tag&&"function"===typeof e.state.onbeforeupdate&&(u=e.state.onbeforeupdate(e,b));void 0===x&&void 0===u||x||u?x=!1:(e.dom=b.dom,e.domSize=b.domSize,e.instance=b.instance,
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u.dom),c+=u.domSize||1)}1!==c&&(a.domSize=c)}break;default:b=t;n=a.dom=c.dom;switch(a.tag){case "svg":b="http://www.w3.org/2000/svg";break;case "math":b="http://www.w3.org/1998/Math/MathML"}"textarea"===a.tag&&(null==a.attrs&&(a.attrs={}),null!=a.text&&(a.attrs.value=a.text,a.text=void 0));t=c.attrs;f=a.attrs;p=b;if(null!=f)for(u in f)y(a,u,t&&t[u],f[u],p);if(null!=t)for(u in t)null!=f&&u in f||("className"===u&&(u="class"),"o"!==u[0]||"n"!==u[1]||E(u)?"key"!==u&&a.dom.removeAttribute(u):A(a,u,void 0));
null!=a.attrs&&null!=a.attrs.contenteditable?v(a):null!=c.text&&null!=a.text&&""!==a.text?c.text.toString()!==a.text.toString()&&(c.dom.firstChild.nodeValue=a.text):(null!=c.text&&(c.children=[x("#",void 0,void 0,c.text,void 0,c.dom.firstChild)]),null!=a.text&&(a.children=[x("#",void 0,void 0,a.text,void 0,void 0)]),k(n,c.children,a.children,m,d,null,b))}else m?g(a,d):(a.instance=x.normalize(a.state.view(a)),null!=a.attrs&&J(a.attrs,a,d),J(a.state,a,d)),null!=a.instance?(null==c.instance?l(b,a.instance,
d,t,n):h(b,c.instance,a.instance,d,n,m,t),a.dom=a.instance.dom,a.domSize=a.instance.domSize):null!=c.instance?(w(c.instance,null),a.dom=void 0,a.domSize=0):(a.dom=c.dom,a.domSize=c.domSize)}else w(c,null),l(b,a,d,t,n)}function r(a){var c=a.domSize;if(null!=c||null==a.dom){var b=C.createDocumentFragment();if(0<c){for(a=a.dom;--c;)b.appendChild(a.nextSibling);b.insertBefore(a,b.firstChild)}return b}return a.dom}function n(a,c,b){for(;c<a.length;c++)if(null!=a[c]&&null!=a[c].dom)return a[c].dom;return b}
function m(a,c,b){b&&b.parentNode?a.insertBefore(c,b):a.appendChild(c)}function v(a){var c=a.children;if(null!=c&&1===c.length&&"<"===c[0].tag)c=c[0].children,a.dom.innerHTML!==c&&(a.dom.innerHTML=c);else if(null!=a.text||null!=c&&0!==c.length)throw Error("Child node of a contenteditable must be trusted");}function a(a,c,b,d){for(;c<b;c++){var f=a[c];null!=f&&(f.skip?f.skip=!1:w(f,d))}}function w(a,b){function c(){if(++d===f&&(t(a),a.dom)){var c=a.domSize||1;if(1<c)for(var e=a.dom;--c;){var p=e.nextSibling,
g=p.parentNode;null!=g&&g.removeChild(p)}c=a.dom;e=c.parentNode;null!=e&&e.removeChild(c);if(c=null!=b&&null==a.domSize)c=a.attrs,c=!(null!=c&&(c.oncreate||c.onupdate||c.onbeforeremove||c.onremove));c&&"string"===typeof a.tag&&(b.pool?b.pool.push(a):b.pool=[a])}}var f=1,d=0;if(a.attrs&&a.attrs.onbeforeremove){var e=a.attrs.onbeforeremove.call(a.state,a);null!=e&&"function"===typeof e.then&&(f++,e.then(c,c))}"string"!==typeof a.tag&&a.state.onbeforeremove&&(e=a.state.onbeforeremove(a),null!=e&&"function"===
typeof e.then&&(f++,e.then(c,c)));c()}function t(a){a.attrs&&a.attrs.onremove&&a.attrs.onremove.call(a.state,a);if("string"!==typeof a.tag&&a.state.onremove)a.state.onremove(a);if(null!=a.instance)t(a.instance);else if(a=a.children,Array.isArray(a))for(var c=0;c<a.length;c++){var b=a[c];null!=b&&t(b)}}function y(a,c,b,d,e){var f=a.dom;if("key"!==c&&"is"!==c&&(b!==d||"value"===c||"checked"===c||"selectedIndex"===c||"selected"===c&&a.dom===C.activeElement||"object"===typeof d)&&"undefined"!==typeof d&&
!E(c)){var g=c.indexOf(":");if(-1<g&&"xlink"===c.substr(0,g))f.setAttributeNS("http://www.w3.org/1999/xlink",c.slice(g+1),d);else if("o"===c[0]&&"n"===c[1]&&"function"===typeof d)A(a,c,d);else if("style"===c)if(a=b,a===d&&(f.style.cssText="",a=null),null==d)f.style.cssText="";else if("string"===typeof d)f.style.cssText=d;else{"string"===typeof a&&(f.style.cssText="");for(var n in d)f.style[n]=d[n];if(null!=a&&"string"!==typeof a)for(n in a)n in d||(f.style[n]="")}else c in f&&"href"!==c&&"list"!==
c&&"form"!==c&&"width"!==c&&"height"!==c&&void 0===e&&!(a.attrs.is||-1<a.tag.indexOf("-"))?"input"===a.tag&&"value"===c&&a.dom.value==d&&a.dom===C.activeElement||"select"===a.tag&&"value"===c&&a.dom.value==d&&a.dom===C.activeElement||"option"===a.tag&&"value"===c&&a.dom.value==d||("input"===a.tag&&"type"===c?f.setAttribute(c,d):f[c]=d):"boolean"===typeof d?d?f.setAttribute(c,""):f.removeAttribute(c):f.setAttribute("className"===c?"class":c,d)}}function E(a){return"oninit"===a||"oncreate"===a||"onupdate"===
a||"onremove"===a||"onbeforeremove"===a||"onbeforeupdate"===a}function A(a,c,b){var d=a.dom,e="function"!==typeof F?b:function(a){var c=b.call(d,a);F.call(d,a);return c};if(c in d)d[c]="function"===typeof b?e:null;else{var f=c.slice(2);void 0===a.events&&(a.events={});a.events[c]!==e&&(null!=a.events[c]&&d.removeEventListener(f,a.events[c],!1),"function"===typeof b&&(a.events[c]=e,d.addEventListener(f,a.events[c],!1)))}}function B(a,c,b){"function"===typeof a.oninit&&a.oninit.call(c.state,c);"function"===
typeof a.oncreate&&b.push(a.oncreate.bind(c.state,c))}function J(a,b,d){"function"===typeof a.onupdate&&d.push(a.onupdate.bind(b.state,b))}var C=b.document,K=C.createDocumentFragment(),F;return{render:function(a,b){if(!a)throw Error("Ensure the DOM element being passed to m.route/m.mount/m.render is not undefined.");var c=[],d=C.activeElement;null==a.vnodes&&(a.textContent="");Array.isArray(b)||(b=[b]);k(a,a.vnodes,x.normalizeChildren(b),!1,c,null,void 0);a.vnodes=b;for(var e=0;e<c.length;e++)c[e]();
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34
render/render.js
View file

@ -20,8 +20,8 @@ module.exports = function($window) {
}
function createNode(parent, vnode, hooks, ns, nextSibling) {
var tag = vnode.tag
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
if (typeof tag === "string") {
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
switch (tag) {
case "#": return createText(parent, vnode, nextSibling)
case "<": return createHTML(parent, vnode, nextSibling)
@ -100,7 +100,7 @@ module.exports = function($window) {
}
return element
}
function createComponent(parent, vnode, hooks, ns, nextSibling) {
function initComponent(vnode, hooks) {
var sentinel
if (typeof vnode.tag === "function") {
vnode.state = null
@ -116,10 +116,13 @@ module.exports = function($window) {
sentinel.$$reentrantLock$$ = true
}
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
initLifecycle(vnode.state, vnode, hooks)
vnode.instance = Vnode.normalize(vnode.state.view(vnode))
sentinel.$$reentrantLock$$ = null
}
function createComponent(parent, vnode, hooks, ns, nextSibling) {
initComponent(vnode, hooks)
if (vnode.instance != null) {
if (vnode.instance === vnode) throw Error("A view cannot return the vnode it received as arguments")
var element = createNode(parent, vnode.instance, hooks, ns, nextSibling)
@ -232,11 +235,12 @@ module.exports = function($window) {
if (oldTag === tag) {
vnode.state = old.state
vnode.events = old.events
if (shouldUpdate(vnode, old)) return
if (vnode.attrs != null) {
updateLifecycle(vnode.attrs, vnode, hooks, recycling)
}
if (!recycling && shouldNotUpdate(vnode, old)) return
if (typeof oldTag === "string") {
if (vnode.attrs != null) {
if (recycling) initLifecycle(vnode.attrs, vnode, hooks)
else updateLifecycle(vnode.attrs, vnode, hooks)
}
switch (oldTag) {
case "#": updateText(old, vnode); break
case "<": updateHTML(parent, old, vnode, nextSibling); break
@ -306,8 +310,13 @@ module.exports = function($window) {
}
}
function updateComponent(parent, old, vnode, hooks, nextSibling, recycling, ns) {
vnode.instance = Vnode.normalize(vnode.state.view(vnode))
updateLifecycle(vnode.state, vnode, hooks, recycling)
if (recycling) {
initComponent(vnode, hooks)
} else {
vnode.instance = Vnode.normalize(vnode.state.view(vnode))
if (vnode.attrs != null) updateLifecycle(vnode.attrs, vnode, hooks)
updateLifecycle(vnode.state, vnode, hooks)
}
if (vnode.instance != null) {
if (old.instance == null) createNode(parent, vnode.instance, hooks, ns, nextSibling)
else updateNode(parent, old.instance, vnode.instance, hooks, nextSibling, recycling, ns)
@ -566,11 +575,10 @@ module.exports = function($window) {
if (typeof source.oninit === "function") source.oninit.call(vnode.state, vnode)
if (typeof source.oncreate === "function") hooks.push(source.oncreate.bind(vnode.state, vnode))
}
function updateLifecycle(source, vnode, hooks, recycling) {
if (recycling) initLifecycle(source, vnode, hooks)
else if (typeof source.onupdate === "function") hooks.push(source.onupdate.bind(vnode.state, vnode))
function updateLifecycle(source, vnode, hooks) {
if (typeof source.onupdate === "function") hooks.push(source.onupdate.bind(vnode.state, vnode))
}
function shouldUpdate(vnode, old) {
function shouldNotUpdate(vnode, old) {
var forceVnodeUpdate, forceComponentUpdate
if (vnode.attrs != null && typeof vnode.attrs.onbeforeupdate === "function") forceVnodeUpdate = vnode.attrs.onbeforeupdate.call(vnode.state, vnode, old)
if (typeof vnode.tag !== "string" && typeof vnode.state.onbeforeupdate === "function") forceComponentUpdate = vnode.state.onbeforeupdate(vnode, old)

324
render/tests/test-component.js
View file

@ -656,6 +656,149 @@ o.spec("component", function() {
o(vnode.dom).notEquals(updated.dom)
})
o("lifecycle timing megatest (for a single component)", function() {
var methods = {
view: o.spy(function() {
return ""
})
}
var attrs = {}
var hooks = [
"oninit", "oncreate", "onbeforeupdate",
"onupdate", "onbeforeremove", "onremove"
]
hooks.forEach(function(hook) {
// the `attrs` hooks are called before the component ones
attrs[hook] = o.spy(function() {
o(attrs[hook].callCount).equals(methods[hook].callCount + 1)
})
methods[hook] = o.spy(function() {
o(attrs[hook].callCount).equals(methods[hook].callCount)
})
})
var component = createComponent(methods)
o(methods.view.callCount).equals(0)
o(methods.oninit.callCount).equals(0)
o(methods.oncreate.callCount).equals(0)
o(methods.onbeforeupdate.callCount).equals(0)
o(methods.onupdate.callCount).equals(0)
o(methods.onbeforeremove.callCount).equals(0)
o(methods.onremove.callCount).equals(0)
hooks.forEach(function(hook) {
o(attrs[hook].callCount).equals(methods[hook].callCount)(hook)
})
render(root, [{tag: component, attrs: attrs}])
o(methods.view.callCount).equals(1)
o(methods.oninit.callCount).equals(1)
o(methods.oncreate.callCount).equals(1)
o(methods.onbeforeupdate.callCount).equals(0)
o(methods.onupdate.callCount).equals(0)
o(methods.onbeforeremove.callCount).equals(0)
o(methods.onremove.callCount).equals(0)
hooks.forEach(function(hook) {
o(attrs[hook].callCount).equals(methods[hook].callCount)(hook)
})
render(root, [{tag: component, attrs: attrs}])
o(methods.view.callCount).equals(2)
o(methods.oninit.callCount).equals(1)
o(methods.oncreate.callCount).equals(1)
o(methods.onbeforeupdate.callCount).equals(1)
o(methods.onupdate.callCount).equals(1)
o(methods.onbeforeremove.callCount).equals(0)
o(methods.onremove.callCount).equals(0)
hooks.forEach(function(hook) {
o(attrs[hook].callCount).equals(methods[hook].callCount)(hook)
})
render(root, [])
o(methods.view.callCount).equals(2)
o(methods.oninit.callCount).equals(1)
o(methods.oncreate.callCount).equals(1)
o(methods.onbeforeupdate.callCount).equals(1)
o(methods.onupdate.callCount).equals(1)
o(methods.onbeforeremove.callCount).equals(1)
o(methods.onremove.callCount).equals(1)
hooks.forEach(function(hook) {
o(attrs[hook].callCount).equals(methods[hook].callCount)(hook)
})
})
o("hook state and arguments validation", function(){
var methods = {
view: o.spy(function(vnode) {
o(this).equals(vnode.state)
return ""
})
}
var attrs = {}
var hooks = [
"oninit", "oncreate", "onbeforeupdate",
"onupdate", "onbeforeremove", "onremove"
]
hooks.forEach(function(hook) {
attrs[hook] = o.spy(function(vnode){
o(this).equals(vnode.state)(hook)
})
methods[hook] = o.spy(function(vnode){
o(this).equals(vnode.state)
})
})
var component = createComponent(methods)
render(root, [{tag: component, attrs: attrs}])
render(root, [{tag: component, attrs: attrs}])
render(root, [])
hooks.forEach(function(hook) {
o(attrs[hook].this).equals(methods.view.this)(hook)
o(methods[hook].this).equals(methods.view.this)(hook)
})
o(methods.view.args.length).equals(1)
o(methods.oninit.args.length).equals(1)
o(methods.oncreate.args.length).equals(1)
o(methods.onbeforeupdate.args.length).equals(2)
o(methods.onupdate.args.length).equals(1)
o(methods.onbeforeremove.args.length).equals(1)
o(methods.onremove.args.length).equals(1)
hooks.forEach(function(hook) {
o(methods[hook].args.length).equals(attrs[hook].args.length)(hook)
})
})
o("recycled components get a fresh state", function() {
var step = 0
var firstState
var view = o.spy(function(vnode) {
if (step === 0) {
firstState = vnode.state
} else {
o(vnode.state).notEquals(firstState)
}
return {tag: 'div'}
})
var component = createComponent({view: view})
render(root, [{tag: 'div', children: [{tag: component, key: 1}]}])
var child = root.firstChild.firstChild
render(root, [])
step = 1
render(root, [{tag: 'div', children: [{tag: component, key: 1}]}])
o(child).equals(root.firstChild.firstChild)
o(view.callCount).equals(2)
})
})
o.spec("state", function() {
o("initializes state", function() {
@ -675,7 +818,7 @@ o.spec("component", function() {
o(vnode.state.data).equals(data)
}
})
o('state "copy" is shallow', function() {
o('state proxies to the component object/prototype', function() {
var called = 0
var body = {a: 1}
var data = [body]
@ -698,11 +841,10 @@ o.spec("component", function() {
})
})
o.spec("Tests specific to certain component kinds", function() {
o.spec("POJO state", function() {
o("copies state", function() {
o.spec("state", function() {
o("POJO", function() {
var called = 0
var data = {a: 1}
var data = {}
var component = {
data: data,
oninit: init,
@ -721,142 +863,52 @@ o.spec("component", function() {
o(vnode.state.x).equals(1)
}
})
})
o("Constructible", function() {
var oninit = o.spy()
var component = o.spy(function(vnode){
o(vnode.state).equals(null)
o(oninit.callCount).equals(0)
})
var view = o.spy(function(){
o(this instanceof component).equals(true)
return ""
})
component.prototype.view = view
component.prototype.oninit = oninit
o("Classes can be used as components", function() {
function MyComponent(vnode){
o(vnode.state).equals(null)
}
var proto = MyComponent.prototype
var context
var context
render(root, [{tag: component, attrs: {oninit: oninit}}])
render(root, [{tag: component, attrs: {oninit: oninit}}])
render(root, [])
proto.oninit = o.spy(function(vnode) {
o(this).equals(vnode.state)
context = this
o(component.callCount).equals(1)
o(oninit.callCount).equals(2)
o(view.callCount).equals(2)
})
proto.oncreate = o.spy()
proto.onbeforeupdate = o.spy()
proto.onupdate = o.spy()
proto.onbeforeremove = o.spy()
proto.onremove = o.spy()
proto.view = o.spy(function() {
return ""
o("Closure", function() {
var state
var oninit = o.spy()
var view = o.spy(function() {
o(this).equals(state)
return ""
})
var component = o.spy(function(vnode) {
o(vnode.state).equals(null)
o(oninit.callCount).equals(0)
return state = {
view: view
}
})
render(root, [{tag: component, attrs: {oninit: oninit}}])
render(root, [{tag: component, attrs: {oninit: oninit}}])
render(root, [])
o(component.callCount).equals(1)
o(oninit.callCount).equals(1)
o(view.callCount).equals(2)
})
render(root, [{tag: MyComponent}])
o(context instanceof MyComponent).equals(true)
o(proto.view.callCount).equals(1)
o(proto.oncreate.callCount).equals(1)
o(proto.onbeforeupdate.callCount).equals(0)
o(proto.onupdate.callCount).equals(0)
o(proto.onbeforeremove.callCount).equals(0)
o(proto.onremove.callCount).equals(0)
render(root, [{tag: MyComponent}])
o(proto.view.callCount).equals(2)
o(proto.oncreate.callCount).equals(1)
o(proto.onbeforeupdate.callCount).equals(1)
o(proto.onupdate.callCount).equals(1)
o(proto.onbeforeremove.callCount).equals(0)
o(proto.onremove.callCount).equals(0)
render(root, [])
o(proto.view.callCount).equals(2)
o(proto.oncreate.callCount).equals(1)
o(proto.onbeforeupdate.callCount).equals(1)
o(proto.onupdate.callCount).equals(1)
o(proto.onbeforeremove.callCount).equals(1)
o(proto.onremove.callCount).equals(1)
o(proto.oninit.this).equals(context)
o(proto.view.this).equals(context)
o(proto.oncreate.this).equals(context)
o(proto.onbeforeupdate.this).equals(context)
o(proto.onupdate.this).equals(context)
o(proto.onbeforeremove.this).equals(context)
o(proto.onremove.this).equals(context)
o(proto.oninit.args.length).equals(1)
o(proto.view.args.length).equals(1)
o(proto.oncreate.args.length).equals(1)
o(proto.onbeforeupdate.args.length).equals(2)
o(proto.onupdate.args.length).equals(1)
o(proto.onbeforeremove.args.length).equals(1)
o(proto.onremove.args.length).equals(1)
})
o("Closure functions can be used as components", function() {
var state, context
function component(vnode) {
o(vnode.state).equals(null)
return state = {
oninit: o.spy(function(vnode) {
o(this).equals(vnode.state)
context = this
}),
oncreate: o.spy(),
onbeforeupdate: o.spy(),
onupdate: o.spy(),
onbeforeremove: o.spy(),
onremove: o.spy(),
view: o.spy(function() {
return ""
})
}
}
render(root, [{tag: component}])
o(state).equals(context)
o(state.oninit.callCount).equals(1)
o(state.view.callCount).equals(1)
o(state.oncreate.callCount).equals(1)
o(state.onbeforeupdate.callCount).equals(0)
o(state.onupdate.callCount).equals(0)
o(state.onbeforeremove.callCount).equals(0)
o(state.onremove.callCount).equals(0)
render(root, [{tag: component}])
o(state.oninit.callCount).equals(1)
o(state.view.callCount).equals(2)
o(state.oncreate.callCount).equals(1)
o(state.onbeforeupdate.callCount).equals(1)
o(state.onupdate.callCount).equals(1)
o(state.onbeforeremove.callCount).equals(0)
o(state.onremove.callCount).equals(0)
render(root, [])
o(state.oninit.callCount).equals(1)
o(state.view.callCount).equals(2)
o(state.oncreate.callCount).equals(1)
o(state.onbeforeupdate.callCount).equals(1)
o(state.onupdate.callCount).equals(1)
o(state.onbeforeremove.callCount).equals(1)
o(state.onremove.callCount).equals(1)
o(state.oninit.this).equals(state)
o(state.view.this).equals(state)
o(state.oncreate.this).equals(state)
o(state.onbeforeupdate.this).equals(state)
o(state.onupdate.this).equals(state)
o(state.onbeforeremove.this).equals(state)
o(state.onremove.this).equals(state)
o(state.oninit.args.length).equals(1)
o(state.view.args.length).equals(1)
o(state.oncreate.args.length).equals(1)
o(state.onbeforeupdate.args.length).equals(2)
o(state.onupdate.args.length).equals(1)
o(state.onbeforeremove.args.length).equals(1)
o(state.onremove.args.length).equals(1)
})
})
})

15
render/tests/test-onbeforeupdate.js
View file

@ -120,6 +120,21 @@ o.spec("onbeforeupdate", function() {
o(count).equals(1)
})
o("doesn't fire on recycled nodes", function() {
var onbeforeupdate = o.spy()
var vnodes = [{tag: "div", key: 1}]
var temp = []
var updated = [{tag: "div", key: 1, attrs: {onbeforeupdate: onbeforeupdate}}]
render(root, vnodes)
render(root, temp)
render(root, updated)
o(vnodes[0].dom).equals(updated[0].dom)
o(updated[0].dom.nodeName).equals("DIV")
o(onbeforeupdate.callCount).equals(0)
})
components.forEach(function(cmp){
o.spec(cmp.kind, function(){
var createComponent = cmp.create