mirror of
https://gitee.com/vuejs/vue.git
synced 2024-12-04 13:07:40 +08:00
3949 lines
98 KiB
JavaScript
3949 lines
98 KiB
JavaScript
'use strict';
|
|
|
|
/**
|
|
* Convert a value to a string that is actually rendered.
|
|
*
|
|
* @param {*} val
|
|
* @return {String}
|
|
*/
|
|
|
|
function renderString(val) {
|
|
return val == null ? '' : typeof val === 'object' ? JSON.stringify(val, null, 2) : String(val);
|
|
}
|
|
|
|
/**
|
|
* Make a map and return a function for checking if a key
|
|
* is in that map.
|
|
*
|
|
* @param {String} str
|
|
* @param {Boolean} expectsLowerCase
|
|
* @return {Function}
|
|
*/
|
|
|
|
function makeMap(str, expectsLowerCase) {
|
|
var map = Object.create(null);
|
|
var list = str.split(',');
|
|
for (var i = 0; i < list.length; i++) {
|
|
map[list[i]] = true;
|
|
}
|
|
return expectsLowerCase ? function (val) {
|
|
return map[val.toLowerCase()];
|
|
} : function (val) {
|
|
return map[val];
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Check if a tag is a built-in tag.
|
|
*/
|
|
|
|
var isBuiltInTag = makeMap('slot,component,render,transition', true);
|
|
|
|
/**
|
|
* Remove an item from an array
|
|
*
|
|
* @param {Array} arr
|
|
* @param {*} item
|
|
*/
|
|
|
|
function remove(arr, item) {
|
|
if (arr.length) {
|
|
var index = arr.indexOf(item);
|
|
if (index > -1) {
|
|
return arr.splice(index, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check whether the object has the property.
|
|
*
|
|
* @param {Object} obj
|
|
* @param {String} key
|
|
* @return {Boolean}
|
|
*/
|
|
var hasOwnProperty = Object.prototype.hasOwnProperty;
|
|
function hasOwn(obj, key) {
|
|
return hasOwnProperty.call(obj, key);
|
|
}
|
|
|
|
/**
|
|
* Check if value is primitive
|
|
*
|
|
* @param {*} value
|
|
* @return {Boolean}
|
|
*/
|
|
|
|
function isPrimitive(value) {
|
|
return typeof value === 'string' || typeof value === 'number';
|
|
}
|
|
|
|
/**
|
|
* Create a cached version of a pure function.
|
|
*
|
|
* @param {Function} fn
|
|
* @return {Function}
|
|
*/
|
|
|
|
function cached(fn) {
|
|
var cache = Object.create(null);
|
|
return function cachedFn(str) {
|
|
var hit = cache[str];
|
|
return hit || (cache[str] = fn(str));
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Camelize a hyphen-delmited string.
|
|
*
|
|
* @param {String} str
|
|
* @return {String}
|
|
*/
|
|
|
|
var camelizeRE = /-(\w)/g;
|
|
var camelize = cached(function (str) {
|
|
return str.replace(camelizeRE, toUpper);
|
|
});
|
|
|
|
function toUpper(_, c) {
|
|
return c ? c.toUpperCase() : '';
|
|
}
|
|
|
|
/**
|
|
* Hyphenate a camelCase string.
|
|
*
|
|
* @param {String} str
|
|
* @return {String}
|
|
*/
|
|
|
|
var hyphenateRE = /([a-z\d])([A-Z])/g;
|
|
var hyphenate = cached(function (str) {
|
|
return str.replace(hyphenateRE, '$1-$2').toLowerCase();
|
|
});
|
|
|
|
/**
|
|
* Simple bind, faster than native
|
|
*
|
|
* @param {Function} fn
|
|
* @param {Object} ctx
|
|
* @return {Function}
|
|
*/
|
|
|
|
function bind(fn, ctx) {
|
|
return function (a) {
|
|
var l = arguments.length;
|
|
return l ? l > 1 ? fn.apply(ctx, arguments) : fn.call(ctx, a) : fn.call(ctx);
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Convert an Array-like object to a real Array.
|
|
*
|
|
* @param {Array-like} list
|
|
* @param {Number} [start] - start index
|
|
* @return {Array}
|
|
*/
|
|
|
|
function toArray(list, start) {
|
|
start = start || 0;
|
|
var i = list.length - start;
|
|
var ret = new Array(i);
|
|
while (i--) {
|
|
ret[i] = list[i + start];
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Mix properties into target object.
|
|
*
|
|
* @param {Object} to
|
|
* @param {Object} from
|
|
*/
|
|
|
|
function extend(to, from) {
|
|
for (var key in from) {
|
|
to[key] = from[key];
|
|
}
|
|
return to;
|
|
}
|
|
|
|
/**
|
|
* Quick object check - this is primarily used to tell
|
|
* Objects from primitive values when we know the value
|
|
* is a JSON-compliant type.
|
|
*
|
|
* @param {*} obj
|
|
* @return {Boolean}
|
|
*/
|
|
|
|
function isObject(obj) {
|
|
return obj !== null && typeof obj === 'object';
|
|
}
|
|
|
|
/**
|
|
* Strict object type check. Only returns true
|
|
* for plain JavaScript objects.
|
|
*
|
|
* @param {*} obj
|
|
* @return {Boolean}
|
|
*/
|
|
|
|
var toString = Object.prototype.toString;
|
|
var OBJECT_STRING = '[object Object]';
|
|
function isPlainObject(obj) {
|
|
return toString.call(obj) === OBJECT_STRING;
|
|
}
|
|
|
|
/**
|
|
* Array type check.
|
|
*
|
|
* @param {*} obj
|
|
* @return {Boolean}
|
|
*/
|
|
|
|
var isArray = Array.isArray;
|
|
|
|
/**
|
|
* Check if a string starts with $ or _
|
|
*
|
|
* @param {String} str
|
|
* @return {Boolean}
|
|
*/
|
|
|
|
function isReserved(str) {
|
|
var c = (str + '').charCodeAt(0);
|
|
return c === 0x24 || c === 0x5F;
|
|
}
|
|
|
|
/**
|
|
* Define a property.
|
|
*
|
|
* @param {Object} obj
|
|
* @param {String} key
|
|
* @param {*} val
|
|
* @param {Boolean} [enumerable]
|
|
*/
|
|
|
|
function def(obj, key, val, enumerable) {
|
|
Object.defineProperty(obj, key, {
|
|
value: val,
|
|
enumerable: !!enumerable,
|
|
writable: true,
|
|
configurable: true
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Parse simple path.
|
|
*/
|
|
|
|
var bailRE = /[^\w\.]/;
|
|
function parsePath(path) {
|
|
if (bailRE.test(path)) {
|
|
return;
|
|
} else {
|
|
path = path.split('.');
|
|
return function (obj) {
|
|
for (var i = 0; i < path.length; i++) {
|
|
if (!obj) return;
|
|
obj = obj[path[i]];
|
|
}
|
|
return obj;
|
|
};
|
|
}
|
|
}
|
|
|
|
/* global MutationObserver */
|
|
|
|
// can we use __proto__?
|
|
var hasProto = '__proto__' in {};
|
|
|
|
// Browser environment sniffing
|
|
var inBrowser = typeof window !== 'undefined' && Object.prototype.toString.call(window) !== '[object Object]';
|
|
|
|
// detect devtools
|
|
var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;
|
|
|
|
// UA sniffing for working around browser-specific quirks
|
|
var UA = inBrowser && window.navigator.userAgent.toLowerCase();
|
|
var isIos = UA && /(iphone|ipad|ipod|ios)/i.test(UA);
|
|
var isWechat = UA && UA.indexOf('micromessenger') > 0;
|
|
|
|
/**
|
|
* Defer a task to execute it asynchronously. Ideally this
|
|
* should be executed as a microtask, so we leverage
|
|
* MutationObserver if it's available, and fallback to
|
|
* setTimeout(0).
|
|
*
|
|
* @param {Function} cb
|
|
* @param {Object} ctx
|
|
*/
|
|
|
|
var nextTick = function () {
|
|
var callbacks = [];
|
|
var pending = false;
|
|
var timerFunc;
|
|
function nextTickHandler() {
|
|
pending = false;
|
|
var copies = callbacks.slice(0);
|
|
callbacks = [];
|
|
for (var i = 0; i < copies.length; i++) {
|
|
copies[i]();
|
|
}
|
|
}
|
|
|
|
/* istanbul ignore if */
|
|
if (typeof MutationObserver !== 'undefined' && !(isWechat && isIos)) {
|
|
var counter = 1;
|
|
var observer = new MutationObserver(nextTickHandler);
|
|
var textNode = document.createTextNode(counter);
|
|
observer.observe(textNode, {
|
|
characterData: true
|
|
});
|
|
timerFunc = function timerFunc() {
|
|
counter = (counter + 1) % 2;
|
|
textNode.data = counter;
|
|
};
|
|
} else {
|
|
// webpack attempts to inject a shim for setImmediate
|
|
// if it is used as a global, so we have to work around that to
|
|
// avoid bundling unnecessary code.
|
|
var context = inBrowser ? window : typeof global !== 'undefined' ? global : {};
|
|
timerFunc = context.setImmediate || setTimeout;
|
|
}
|
|
return function (cb, ctx) {
|
|
var func = ctx ? function () {
|
|
cb.call(ctx);
|
|
} : cb;
|
|
callbacks.push(func);
|
|
if (pending) return;
|
|
pending = true;
|
|
timerFunc(nextTickHandler, 0);
|
|
};
|
|
}();
|
|
|
|
var _Set = void 0;
|
|
/* istanbul ignore if */
|
|
if (typeof Set !== 'undefined' && Set.toString().match(/native code/)) {
|
|
// use native Set when available.
|
|
_Set = Set;
|
|
} else {
|
|
// a non-standard Set polyfill that only works with primitive keys.
|
|
_Set = function _Set() {
|
|
this.set = Object.create(null);
|
|
};
|
|
_Set.prototype.has = function (key) {
|
|
return this.set[key] !== undefined;
|
|
};
|
|
_Set.prototype.add = function (key) {
|
|
this.set[key] = 1;
|
|
};
|
|
_Set.prototype.clear = function () {
|
|
this.set = Object.create(null);
|
|
};
|
|
}
|
|
|
|
var config = {
|
|
|
|
/**
|
|
* Preserve whitespaces between elements.
|
|
*/
|
|
|
|
preserveWhitespace: true,
|
|
|
|
/**
|
|
* Whether to suppress warnings.
|
|
*
|
|
* @type {Boolean}
|
|
*/
|
|
|
|
silent: false,
|
|
|
|
/**
|
|
* Check if a tag is reserved so that it cannot be registered as a
|
|
* component. This is platform-dependent and may be overwritten.
|
|
*/
|
|
|
|
isReservedTag: function isReservedTag() {
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* Check if a tag is an unknown element.
|
|
* Platform-dependent.
|
|
*/
|
|
|
|
isUnknownElement: function isUnknownElement() {
|
|
return false;
|
|
},
|
|
|
|
/**
|
|
* List of asset types that a component can own.
|
|
*
|
|
* @type {Array}
|
|
*/
|
|
|
|
_assetTypes: ['component', 'directive', 'transition'],
|
|
|
|
/**
|
|
* List of lifecycle hooks.
|
|
*
|
|
* @type {Array}
|
|
*/
|
|
|
|
_lifecycleHooks: ['init', 'created', 'beforeMount', 'mounted', 'ready', 'beforeUpdate', 'updated', 'beforeDestroy', 'destroyed'],
|
|
|
|
/**
|
|
* Max circular updates allowed in a batcher flush cycle.
|
|
*/
|
|
|
|
_maxUpdateCount: 100
|
|
};
|
|
|
|
var warn = void 0;
|
|
var formatComponentName = void 0;
|
|
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
(function () {
|
|
var hasConsole = typeof console !== 'undefined';
|
|
|
|
warn = function warn(msg, vm) {
|
|
if (hasConsole && !config.silent) {
|
|
console.error('[Vue warn]: ' + msg + (vm ? formatComponentName(vm) : ''));
|
|
}
|
|
};
|
|
|
|
formatComponentName = function formatComponentName(vm) {
|
|
var name = vm._isVue ? vm.$options.name : vm.name;
|
|
return name ? ' (found in component: <' + hyphenate(name) + '>)' : '';
|
|
};
|
|
})();
|
|
}
|
|
|
|
var uid$1 = 0;
|
|
|
|
/**
|
|
* A dep is an observable that can have multiple
|
|
* directives subscribing to it.
|
|
*
|
|
* @constructor
|
|
*/
|
|
|
|
function Dep() {
|
|
this.id = uid$1++;
|
|
this.subs = [];
|
|
}
|
|
|
|
// the current target watcher being evaluated.
|
|
// this is globally unique because there could be only one
|
|
// watcher being evaluated at any time.
|
|
Dep.target = null;
|
|
|
|
/**
|
|
* Add a directive subscriber.
|
|
*
|
|
* @param {Directive} sub
|
|
*/
|
|
|
|
Dep.prototype.addSub = function (sub) {
|
|
this.subs.push(sub);
|
|
};
|
|
|
|
/**
|
|
* Remove a directive subscriber.
|
|
*
|
|
* @param {Directive} sub
|
|
*/
|
|
|
|
Dep.prototype.removeSub = function (sub) {
|
|
remove(this.subs, sub);
|
|
};
|
|
|
|
/**
|
|
* Add self as a dependency to the target watcher.
|
|
*/
|
|
|
|
Dep.prototype.depend = function () {
|
|
Dep.target.addDep(this);
|
|
};
|
|
|
|
/**
|
|
* Notify all subscribers of a new value.
|
|
*/
|
|
|
|
Dep.prototype.notify = function () {
|
|
// stablize the subscriber list first
|
|
var subs = this.subs.slice();
|
|
for (var i = 0, l = subs.length; i < l; i++) {
|
|
subs[i].update();
|
|
}
|
|
};
|
|
|
|
var arrayProto = Array.prototype;
|
|
var arrayMethods = Object.create(arrayProto)
|
|
|
|
/**
|
|
* Intercept mutating methods and emit events
|
|
*/
|
|
|
|
;['push', 'pop', 'shift', 'unshift', 'splice', 'sort', 'reverse'].forEach(function (method) {
|
|
// cache original method
|
|
var original = arrayProto[method];
|
|
def(arrayMethods, method, function mutator() {
|
|
// avoid leaking arguments:
|
|
// http://jsperf.com/closure-with-arguments
|
|
var i = arguments.length;
|
|
var args = new Array(i);
|
|
while (i--) {
|
|
args[i] = arguments[i];
|
|
}
|
|
var result = original.apply(this, args);
|
|
var ob = this.__ob__;
|
|
var inserted;
|
|
switch (method) {
|
|
case 'push':
|
|
inserted = args;
|
|
break;
|
|
case 'unshift':
|
|
inserted = args;
|
|
break;
|
|
case 'splice':
|
|
inserted = args.slice(2);
|
|
break;
|
|
}
|
|
if (inserted) ob.observeArray(inserted);
|
|
// notify change
|
|
ob.dep.notify();
|
|
return result;
|
|
});
|
|
});
|
|
|
|
var arrayKeys = Object.getOwnPropertyNames(arrayMethods);
|
|
|
|
/**
|
|
* By default, when a reactive property is set, the new value is
|
|
* also converted to become reactive. However when passing down props,
|
|
* we don't want to force conversion because the value may be a nested value
|
|
* under a frozen data structure. Converting it would defeat the optimization.
|
|
*/
|
|
|
|
var observerState = {
|
|
shouldConvert: true
|
|
};
|
|
|
|
/**
|
|
* Observer class that are attached to each observed
|
|
* object. Once attached, the observer converts target
|
|
* object's property keys into getter/setters that
|
|
* collect dependencies and dispatches updates.
|
|
*
|
|
* @param {Array|Object} value
|
|
* @constructor
|
|
*/
|
|
|
|
function Observer(value) {
|
|
this.value = value;
|
|
this.dep = new Dep();
|
|
def(value, '__ob__', this);
|
|
if (isArray(value)) {
|
|
var augment = hasProto ? protoAugment : copyAugment;
|
|
augment(value, arrayMethods, arrayKeys);
|
|
this.observeArray(value);
|
|
} else {
|
|
this.walk(value);
|
|
}
|
|
}
|
|
|
|
// Instance methods
|
|
|
|
/**
|
|
* Walk through each property and convert them into
|
|
* getter/setters. This method should only be called when
|
|
* value type is Object.
|
|
*
|
|
* @param {Object} obj
|
|
*/
|
|
|
|
Observer.prototype.walk = function (obj) {
|
|
for (var key in obj) {
|
|
this.convert(key, obj[key]);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Observe a list of Array items.
|
|
*
|
|
* @param {Array} items
|
|
*/
|
|
|
|
Observer.prototype.observeArray = function (items) {
|
|
for (var i = 0, l = items.length; i < l; i++) {
|
|
observe(items[i]);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Convert a property into getter/setter so we can emit
|
|
* the events when the property is accessed/changed.
|
|
*
|
|
* @param {String} key
|
|
* @param {*} val
|
|
*/
|
|
|
|
Observer.prototype.convert = function (key, val) {
|
|
defineReactive(this.value, key, val);
|
|
};
|
|
|
|
/**
|
|
* Add an owner vm, so that when $set/$delete mutations
|
|
* happen we can notify owner vms to proxy the keys and
|
|
* digest the watchers. This is only called when the object
|
|
* is observed as an instance's root $data.
|
|
*
|
|
* @param {Vue} vm
|
|
*/
|
|
|
|
Observer.prototype.addVm = function (vm) {
|
|
(this.vms || (this.vms = [])).push(vm);
|
|
};
|
|
|
|
/**
|
|
* Remove an owner vm. This is called when the object is
|
|
* swapped out as an instance's $data object.
|
|
*
|
|
* @param {Vue} vm
|
|
*/
|
|
|
|
Observer.prototype.removeVm = function (vm) {
|
|
remove(this.vms, vm);
|
|
};
|
|
|
|
// helpers
|
|
|
|
/**
|
|
* Augment an target Object or Array by intercepting
|
|
* the prototype chain using __proto__
|
|
*
|
|
* @param {Object|Array} target
|
|
* @param {Object} src
|
|
*/
|
|
|
|
function protoAugment(target, src) {
|
|
/* eslint-disable no-proto */
|
|
target.__proto__ = src;
|
|
/* eslint-enable no-proto */
|
|
}
|
|
|
|
/**
|
|
* Augment an target Object or Array by defining
|
|
* hidden properties.
|
|
*
|
|
* @param {Object|Array} target
|
|
* @param {Object} proto
|
|
*/
|
|
|
|
function copyAugment(target, src, keys) {
|
|
for (var i = 0, l = keys.length; i < l; i++) {
|
|
var key = keys[i];
|
|
def(target, key, src[key]);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Attempt to create an observer instance for a value,
|
|
* returns the new observer if successfully observed,
|
|
* or the existing observer if the value already has one.
|
|
*
|
|
* @param {*} value
|
|
* @param {Vue} [vm]
|
|
* @return {Observer|undefined}
|
|
* @static
|
|
*/
|
|
|
|
function observe(value, vm) {
|
|
if (!isObject(value)) {
|
|
return;
|
|
}
|
|
var ob;
|
|
if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
|
|
ob = value.__ob__;
|
|
} else if (observerState.shouldConvert && (isArray(value) || isPlainObject(value)) && Object.isExtensible(value) && !value._isVue) {
|
|
ob = new Observer(value);
|
|
}
|
|
if (ob && vm) {
|
|
ob.addVm(vm);
|
|
}
|
|
return ob;
|
|
}
|
|
|
|
/**
|
|
* Define a reactive property on an Object.
|
|
*
|
|
* @param {Object} obj
|
|
* @param {String} key
|
|
* @param {*} val
|
|
*/
|
|
|
|
function defineReactive(obj, key, val) {
|
|
var dep = new Dep();
|
|
|
|
var property = Object.getOwnPropertyDescriptor(obj, key);
|
|
if (property && property.configurable === false) {
|
|
return;
|
|
}
|
|
|
|
// cater for pre-defined getter/setters
|
|
var getter = property && property.get;
|
|
var setter = property && property.set;
|
|
|
|
var childOb = observe(val);
|
|
Object.defineProperty(obj, key, {
|
|
enumerable: true,
|
|
configurable: true,
|
|
get: function reactiveGetter() {
|
|
var value = getter ? getter.call(obj) : val;
|
|
if (Dep.target) {
|
|
dep.depend();
|
|
if (childOb) {
|
|
childOb.dep.depend();
|
|
}
|
|
if (isArray(value)) {
|
|
for (var e, i = 0, l = value.length; i < l; i++) {
|
|
e = value[i];
|
|
e && e.__ob__ && e.__ob__.dep.depend();
|
|
}
|
|
}
|
|
}
|
|
return value;
|
|
},
|
|
set: function reactiveSetter(newVal) {
|
|
var value = getter ? getter.call(obj) : val;
|
|
if (newVal === value) {
|
|
return;
|
|
}
|
|
if (setter) {
|
|
setter.call(obj, newVal);
|
|
} else {
|
|
val = newVal;
|
|
}
|
|
childOb = observe(newVal);
|
|
dep.notify();
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Set a property on an object. Adds the new property and
|
|
* triggers change notification if the property doesn't
|
|
* already exist.
|
|
*
|
|
* @param {Object} obj
|
|
* @param {String} key
|
|
* @param {*} val
|
|
* @public
|
|
*/
|
|
|
|
function set(obj, key, val) {
|
|
if (isArray(obj)) {
|
|
return obj.splice(key, 1, val);
|
|
}
|
|
if (hasOwn(obj, key)) {
|
|
obj[key] = val;
|
|
return;
|
|
}
|
|
if (obj._isVue) {
|
|
set(obj._data, key, val);
|
|
return;
|
|
}
|
|
var ob = obj.__ob__;
|
|
if (!ob) {
|
|
obj[key] = val;
|
|
return;
|
|
}
|
|
ob.convert(key, val);
|
|
ob.dep.notify();
|
|
if (ob.vms) {
|
|
var i = ob.vms.length;
|
|
while (i--) {
|
|
var vm = ob.vms[i];
|
|
proxy(vm, key);
|
|
vm.$forceUpdate();
|
|
}
|
|
}
|
|
return val;
|
|
}
|
|
|
|
/**
|
|
* Delete a property and trigger change if necessary.
|
|
*
|
|
* @param {Object} obj
|
|
* @param {String} key
|
|
*/
|
|
|
|
function del(obj, key) {
|
|
if (!hasOwn(obj, key)) {
|
|
return;
|
|
}
|
|
delete obj[key];
|
|
var ob = obj.__ob__;
|
|
|
|
if (!ob) {
|
|
if (obj._isVue) {
|
|
delete obj._data[key];
|
|
obj.$forceUpdate();
|
|
}
|
|
return;
|
|
}
|
|
ob.dep.notify();
|
|
if (ob.vms) {
|
|
var i = ob.vms.length;
|
|
while (i--) {
|
|
var vm = ob.vms[i];
|
|
unproxy(vm, key);
|
|
vm.$forceUpdate();
|
|
}
|
|
}
|
|
}
|
|
|
|
function proxy(vm, key) {
|
|
if (!isReserved(key)) {
|
|
Object.defineProperty(vm, key, {
|
|
configurable: true,
|
|
enumerable: true,
|
|
get: function proxyGetter() {
|
|
return vm._data[key];
|
|
},
|
|
set: function proxySetter(val) {
|
|
vm._data[key] = val;
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
function unproxy(vm, key) {
|
|
if (!isReserved(key)) {
|
|
delete vm[key];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Option overwriting strategies are functions that handle
|
|
* how to merge a parent option value and a child option
|
|
* value into the final value.
|
|
*
|
|
* All strategy functions follow the same signature:
|
|
*
|
|
* @param {*} parentVal
|
|
* @param {*} childVal
|
|
* @param {Vue} [vm]
|
|
*/
|
|
|
|
var strats = config.optionMergeStrategies = Object.create(null);
|
|
|
|
/**
|
|
* Helper that recursively merges two data objects together.
|
|
*/
|
|
|
|
function mergeData(to, from) {
|
|
var key, toVal, fromVal;
|
|
for (key in from) {
|
|
toVal = to[key];
|
|
fromVal = from[key];
|
|
if (!hasOwn(to, key)) {
|
|
set(to, key, fromVal);
|
|
} else if (isObject(toVal) && isObject(fromVal)) {
|
|
mergeData(toVal, fromVal);
|
|
}
|
|
}
|
|
return to;
|
|
}
|
|
|
|
/**
|
|
* Data
|
|
*/
|
|
|
|
strats.data = function (parentVal, childVal, vm) {
|
|
if (!vm) {
|
|
// in a Vue.extend merge, both should be functions
|
|
if (!childVal) {
|
|
return parentVal;
|
|
}
|
|
if (typeof childVal !== 'function') {
|
|
process.env.NODE_ENV !== 'production' && warn('The "data" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.', vm);
|
|
return parentVal;
|
|
}
|
|
if (!parentVal) {
|
|
return childVal;
|
|
}
|
|
// when parentVal & childVal are both present,
|
|
// we need to return a function that returns the
|
|
// merged result of both functions... no need to
|
|
// check if parentVal is a function here because
|
|
// it has to be a function to pass previous merges.
|
|
return function mergedDataFn() {
|
|
return mergeData(childVal.call(this), parentVal.call(this));
|
|
};
|
|
} else if (parentVal || childVal) {
|
|
return function mergedInstanceDataFn() {
|
|
// instance merge
|
|
var instanceData = typeof childVal === 'function' ? childVal.call(vm) : childVal;
|
|
var defaultData = typeof parentVal === 'function' ? parentVal.call(vm) : undefined;
|
|
if (instanceData) {
|
|
return mergeData(instanceData, defaultData);
|
|
} else {
|
|
return defaultData;
|
|
}
|
|
};
|
|
}
|
|
};
|
|
|
|
/**
|
|
* El
|
|
*/
|
|
|
|
strats.el = function (parentVal, childVal, vm) {
|
|
if (!vm && childVal && typeof childVal !== 'function') {
|
|
process.env.NODE_ENV !== 'production' && warn('The "el" option should be a function ' + 'that returns a per-instance value in component ' + 'definitions.', vm);
|
|
return;
|
|
}
|
|
var ret = childVal || parentVal;
|
|
// invoke the element factory if this is instance merge
|
|
return vm && typeof ret === 'function' ? ret.call(vm) : ret;
|
|
};
|
|
|
|
/**
|
|
* Hooks and param attributes are merged as arrays.
|
|
*/
|
|
|
|
function mergeHook(parentVal, childVal) {
|
|
return childVal ? parentVal ? parentVal.concat(childVal) : isArray(childVal) ? childVal : [childVal] : parentVal;
|
|
}
|
|
|
|
config._lifecycleHooks.forEach(function (hook) {
|
|
strats[hook] = mergeHook;
|
|
});
|
|
|
|
/**
|
|
* Assets
|
|
*
|
|
* When a vm is present (instance creation), we need to do
|
|
* a three-way merge between constructor options, instance
|
|
* options and parent options.
|
|
*/
|
|
|
|
function mergeAssets(parentVal, childVal) {
|
|
var res = Object.create(parentVal);
|
|
return childVal ? extend(res, childVal) : res;
|
|
}
|
|
|
|
config._assetTypes.forEach(function (type) {
|
|
strats[type + 's'] = mergeAssets;
|
|
});
|
|
|
|
/**
|
|
* Watchers.
|
|
*
|
|
* Watchers hashes should not overwrite one
|
|
* another, so we merge them as arrays.
|
|
*/
|
|
|
|
strats.watch = function (parentVal, childVal) {
|
|
if (!childVal) return parentVal;
|
|
if (!parentVal) return childVal;
|
|
var ret = {};
|
|
extend(ret, parentVal);
|
|
for (var key in childVal) {
|
|
var parent = ret[key];
|
|
var child = childVal[key];
|
|
if (parent && !isArray(parent)) {
|
|
parent = [parent];
|
|
}
|
|
ret[key] = parent ? parent.concat(child) : [child];
|
|
}
|
|
return ret;
|
|
};
|
|
|
|
/**
|
|
* Other object hashes.
|
|
*/
|
|
|
|
strats.props = strats.methods = strats.computed = function (parentVal, childVal) {
|
|
if (!childVal) return parentVal;
|
|
if (!parentVal) return childVal;
|
|
var ret = Object.create(null);
|
|
extend(ret, parentVal);
|
|
extend(ret, childVal);
|
|
return ret;
|
|
};
|
|
|
|
/**
|
|
* Default strategy.
|
|
*/
|
|
|
|
var defaultStrat = function defaultStrat(parentVal, childVal) {
|
|
return childVal === undefined ? parentVal : childVal;
|
|
};
|
|
|
|
/**
|
|
* Make sure component options get converted to actual
|
|
* constructors.
|
|
*
|
|
* @param {Object} options
|
|
*/
|
|
|
|
function guardComponents(options) {
|
|
if (options.components) {
|
|
var components = options.components;
|
|
var def;
|
|
for (var key in components) {
|
|
if (isBuiltInTag(key) || config.isReservedTag(key)) {
|
|
process.env.NODE_ENV !== 'production' && warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + key);
|
|
continue;
|
|
}
|
|
def = components[key];
|
|
if (isPlainObject(def)) {
|
|
components[key] = Vue.extend(def);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Ensure all props option syntax are normalized into the
|
|
* Object-based format.
|
|
*
|
|
* @param {Object} options
|
|
*/
|
|
|
|
function guardProps(options) {
|
|
var props = options.props;
|
|
if (!props) return;
|
|
var res = {};
|
|
var i = void 0,
|
|
val = void 0,
|
|
name = void 0;
|
|
if (isArray(props)) {
|
|
i = props.length;
|
|
while (i--) {
|
|
val = props[i];
|
|
if (typeof val === 'string') {
|
|
name = camelize(val);
|
|
res[name] = { type: null };
|
|
} else if (process.env.NODE_ENV !== 'production') {
|
|
warn('props must be strings when using array syntax.');
|
|
}
|
|
}
|
|
} else if (isPlainObject(props)) {
|
|
for (var key in props) {
|
|
val = props[key];
|
|
name = camelize(key);
|
|
res[name] = isPlainObject(val) ? val : { type: val };
|
|
}
|
|
}
|
|
options.props = res;
|
|
}
|
|
|
|
function guardDirectives(options) {
|
|
var dirs = options.directives;
|
|
if (dirs) {
|
|
for (var key in dirs) {
|
|
if (typeof dirs[key] === 'function') {
|
|
dirs[key] = { update: dirs[key] };
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Merge two option objects into a new one.
|
|
* Core utility used in both instantiation and inheritance.
|
|
*
|
|
* @param {Object} parent
|
|
* @param {Object} child
|
|
* @param {Vue} [vm] - if vm is present, indicates this is
|
|
* an instantiation merge.
|
|
*/
|
|
|
|
function mergeOptions(parent, child, vm) {
|
|
guardComponents(child);
|
|
guardProps(child);
|
|
guardDirectives(child);
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
if (child.propsData && !vm) {
|
|
warn('propsData can only be used as an instantiation option.');
|
|
}
|
|
}
|
|
var options = {};
|
|
var key;
|
|
if (child.mixins) {
|
|
for (var i = 0, l = child.mixins.length; i < l; i++) {
|
|
parent = mergeOptions(parent, child.mixins[i], vm);
|
|
}
|
|
}
|
|
for (key in parent) {
|
|
mergeField(key);
|
|
}
|
|
for (key in child) {
|
|
if (!hasOwn(parent, key)) {
|
|
mergeField(key);
|
|
}
|
|
}
|
|
function mergeField(key) {
|
|
var strat = strats[key] || defaultStrat;
|
|
options[key] = strat(parent[key], child[key], vm, key);
|
|
}
|
|
return options;
|
|
}
|
|
|
|
/**
|
|
* Resolve an asset.
|
|
* This function is used because child instances need access
|
|
* to assets defined in its ancestor chain.
|
|
*
|
|
* @param {Object} options
|
|
* @param {String} type
|
|
* @param {String} id
|
|
* @param {Boolean} warnMissing
|
|
* @return {Object|Function}
|
|
*/
|
|
|
|
function resolveAsset(options, type, id, warnMissing) {
|
|
/* istanbul ignore if */
|
|
if (typeof id !== 'string') {
|
|
return;
|
|
}
|
|
var assets = options[type];
|
|
var camelizedId;
|
|
var res = assets[id] ||
|
|
// camelCase ID
|
|
assets[camelizedId = camelize(id)] ||
|
|
// Pascal Case ID
|
|
assets[camelizedId.charAt(0).toUpperCase() + camelizedId.slice(1)];
|
|
if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {
|
|
warn('Failed to resolve ' + type.slice(0, -1) + ': ' + id, options);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
function validateProp(vm, key, propsData) {
|
|
if (!propsData) return;
|
|
var prop = vm.$options.props[key];
|
|
var absent = hasOwn(propsData, key);
|
|
var value = propsData[key];
|
|
// check default value
|
|
if (value === undefined) {
|
|
value = getPropDefaultValue(vm, prop, key);
|
|
// since the default value is a fresh copy,
|
|
// make sure to observe it.
|
|
observerState.shouldConvert = true;
|
|
observe(value);
|
|
observerState.shouldConvert = false;
|
|
}
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
assertProp(prop, key, value, vm, absent);
|
|
}
|
|
return value;
|
|
}
|
|
|
|
/**
|
|
* Get the default value of a prop.
|
|
*
|
|
* @param {Vue} vm
|
|
* @param {Object} prop
|
|
* @return {*}
|
|
*/
|
|
|
|
function getPropDefaultValue(vm, prop, name) {
|
|
// no default, return undefined
|
|
if (!hasOwn(prop, 'default')) {
|
|
// absent boolean value defaults to false
|
|
return prop.type === Boolean ? false : undefined;
|
|
}
|
|
var def = prop.default;
|
|
// warn against non-factory defaults for Object & Array
|
|
if (isObject(def)) {
|
|
process.env.NODE_ENV !== 'production' && warn('Invalid default value for prop "' + name + '": ' + 'Props with type Object/Array must use a factory function ' + 'to return the default value.', vm);
|
|
}
|
|
// call factory function for non-Function types
|
|
return typeof def === 'function' && prop.type !== Function ? def.call(vm) : def;
|
|
}
|
|
|
|
/**
|
|
* Assert whether a prop is valid.
|
|
*
|
|
* @param {Object} prop
|
|
* @param {String} name
|
|
* @param {*} value
|
|
* @param {Vue} vm
|
|
* @param {Boolean} absent
|
|
*/
|
|
|
|
function assertProp(prop, name, value, vm, absent) {
|
|
if (prop.required && absent) {
|
|
process.env.NODE_ENV !== 'production' && warn('Missing required prop: "' + name + '"', vm);
|
|
return false;
|
|
}
|
|
if (value == null) {
|
|
return true;
|
|
}
|
|
var type = prop.type;
|
|
var valid = !type;
|
|
var expectedTypes = [];
|
|
if (type) {
|
|
if (!isArray(type)) {
|
|
type = [type];
|
|
}
|
|
for (var i = 0; i < type.length && !valid; i++) {
|
|
var assertedType = assertType(value, type[i]);
|
|
expectedTypes.push(assertedType.expectedType);
|
|
valid = assertedType.valid;
|
|
}
|
|
}
|
|
if (!valid) {
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
warn('Invalid prop: type check failed for prop "' + name + '".' + ' Expected ' + expectedTypes.map(formatType).join(', ') + ', got ' + formatValue(value) + '.', vm);
|
|
}
|
|
return false;
|
|
}
|
|
var validator = prop.validator;
|
|
if (validator) {
|
|
if (!validator(value)) {
|
|
process.env.NODE_ENV !== 'production' && warn('Invalid prop: custom validator check failed for prop "' + name + '".', vm);
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Assert the type of a value
|
|
*
|
|
* @param {*} value
|
|
* @param {Function} type
|
|
* @return {Object}
|
|
*/
|
|
|
|
function assertType(value, type) {
|
|
var valid;
|
|
var expectedType;
|
|
if (type === String) {
|
|
expectedType = 'string';
|
|
valid = typeof value === expectedType;
|
|
} else if (type === Number) {
|
|
expectedType = 'number';
|
|
valid = typeof value === expectedType;
|
|
} else if (type === Boolean) {
|
|
expectedType = 'boolean';
|
|
valid = typeof value === expectedType;
|
|
} else if (type === Function) {
|
|
expectedType = 'function';
|
|
valid = typeof value === expectedType;
|
|
} else if (type === Object) {
|
|
expectedType = 'object';
|
|
valid = isPlainObject(value);
|
|
} else if (type === Array) {
|
|
expectedType = 'array';
|
|
valid = isArray(value);
|
|
} else {
|
|
valid = value instanceof type;
|
|
}
|
|
return {
|
|
valid: valid,
|
|
expectedType: expectedType
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Format type for output
|
|
*
|
|
* @param {String} type
|
|
* @return {String}
|
|
*/
|
|
|
|
function formatType(type) {
|
|
return type ? type.charAt(0).toUpperCase() + type.slice(1) : 'custom type';
|
|
}
|
|
|
|
/**
|
|
* Format value
|
|
*
|
|
* @param {*} value
|
|
* @return {String}
|
|
*/
|
|
|
|
function formatValue(val) {
|
|
return Object.prototype.toString.call(val).slice(8, -1);
|
|
}
|
|
|
|
|
|
|
|
var util = Object.freeze({
|
|
defineReactive: defineReactive,
|
|
renderString: renderString,
|
|
makeMap: makeMap,
|
|
isBuiltInTag: isBuiltInTag,
|
|
remove: remove,
|
|
hasOwn: hasOwn,
|
|
isPrimitive: isPrimitive,
|
|
cached: cached,
|
|
camelize: camelize,
|
|
hyphenate: hyphenate,
|
|
bind: bind,
|
|
toArray: toArray,
|
|
extend: extend,
|
|
isObject: isObject,
|
|
isPlainObject: isPlainObject,
|
|
isArray: isArray,
|
|
isReserved: isReserved,
|
|
def: def,
|
|
parsePath: parsePath,
|
|
hasProto: hasProto,
|
|
inBrowser: inBrowser,
|
|
devtools: devtools,
|
|
nextTick: nextTick,
|
|
get _Set () { return _Set; },
|
|
mergeOptions: mergeOptions,
|
|
resolveAsset: resolveAsset,
|
|
get warn () { return warn; },
|
|
validateProp: validateProp
|
|
});
|
|
|
|
var hasProxy = void 0;
|
|
var proxyHandlers = void 0;
|
|
var initProxy = void 0;
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
(function () {
|
|
var allowedGlobals = makeMap('Infinity,undefined,NaN,isFinite,isNaN,' + 'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' + 'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl');
|
|
|
|
hasProxy = typeof Proxy !== 'undefined' && Proxy.toString().match(/native code/);
|
|
|
|
proxyHandlers = {
|
|
has: function has(target, key) {
|
|
var has = key in target;
|
|
var isAllowedGlobal = allowedGlobals(key);
|
|
if (!has && !isAllowedGlobal) {
|
|
warn('Trying to access non-existent property "' + key + '" while rendering.', target);
|
|
}
|
|
return !isAllowedGlobal;
|
|
}
|
|
};
|
|
|
|
initProxy = function initProxy(vm) {
|
|
if (hasProxy) {
|
|
vm._renderProxy = new Proxy(vm, proxyHandlers);
|
|
} else {
|
|
vm._renderProxy = vm;
|
|
}
|
|
};
|
|
})();
|
|
}
|
|
|
|
// we have two separate queues: one for directive updates
|
|
// and one for user watcher registered via $watch().
|
|
// we want to guarantee directive updates to be called
|
|
// before user watchers so that when user watchers are
|
|
// triggered, the DOM would have already been in updated
|
|
// state.
|
|
|
|
var queueIndex;
|
|
var queue = [];
|
|
var userQueue = [];
|
|
var has = {};
|
|
var circular = {};
|
|
var waiting = false;
|
|
var internalQueueDepleted = false;
|
|
|
|
/**
|
|
* Reset the batcher's state.
|
|
*/
|
|
|
|
function resetBatcherState() {
|
|
queue = [];
|
|
userQueue = [];
|
|
has = {};
|
|
circular = {};
|
|
waiting = internalQueueDepleted = false;
|
|
}
|
|
|
|
/**
|
|
* Flush both queues and run the watchers.
|
|
*/
|
|
|
|
function flushBatcherQueue() {
|
|
queue.sort(queueSorter);
|
|
runBatcherQueue(queue);
|
|
internalQueueDepleted = true;
|
|
runBatcherQueue(userQueue);
|
|
resetBatcherState();
|
|
}
|
|
|
|
/**
|
|
* Sort queue before flush.
|
|
* This ensures components are updated from parent to child
|
|
* so there will be no duplicate updates, e.g. a child was
|
|
* pushed into the queue first and then its parent's props
|
|
* changed.
|
|
*/
|
|
|
|
function queueSorter(a, b) {
|
|
return a.id - b.id;
|
|
}
|
|
|
|
/**
|
|
* Run the watchers in a single queue.
|
|
*
|
|
* @param {Array} queue
|
|
*/
|
|
|
|
function runBatcherQueue(queue) {
|
|
// do not cache length because more watchers might be pushed
|
|
// as we run existing watchers
|
|
for (queueIndex = 0; queueIndex < queue.length; queueIndex++) {
|
|
var watcher = queue[queueIndex];
|
|
var id = watcher.id;
|
|
has[id] = null;
|
|
watcher.run();
|
|
// in dev build, check and stop circular updates.
|
|
if (process.env.NODE_ENV !== 'production' && has[id] != null) {
|
|
circular[id] = (circular[id] || 0) + 1;
|
|
if (circular[id] > config._maxUpdateCount) {
|
|
warn('You may have an infinite update loop for watcher ' + 'with expression "' + watcher.expression + '"', watcher.vm);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Push a watcher into the watcher queue.
|
|
* Jobs with duplicate IDs will be skipped unless it's
|
|
* pushed when the queue is being flushed.
|
|
*
|
|
* @param {Watcher} watcher
|
|
* properties:
|
|
* - {Number} id
|
|
* - {Function} run
|
|
*/
|
|
|
|
function pushWatcher(watcher) {
|
|
var id = watcher.id;
|
|
if (has[id] == null) {
|
|
if (internalQueueDepleted && !watcher.user) {
|
|
// an internal watcher triggered by a user watcher...
|
|
// let's run it immediately after current user watcher is done.
|
|
userQueue.splice(queueIndex + 1, 0, watcher);
|
|
} else {
|
|
// push watcher into appropriate queue
|
|
var q = watcher.user ? userQueue : queue;
|
|
has[id] = q.length;
|
|
q.push(watcher);
|
|
// queue the flush
|
|
if (!waiting) {
|
|
waiting = true;
|
|
nextTick(flushBatcherQueue);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var uid$2 = 0;
|
|
var prevTarget = void 0;
|
|
|
|
/**
|
|
* A watcher parses an expression, collects dependencies,
|
|
* and fires callback when the expression value changes.
|
|
* This is used for both the $watch() api and directives.
|
|
*
|
|
* @param {Vue} vm
|
|
* @param {String|Function} expOrFn
|
|
* @param {Function} cb
|
|
* @param {Object} options
|
|
* - {Array} filters
|
|
* - {Boolean} twoWay
|
|
* - {Boolean} deep
|
|
* - {Boolean} user
|
|
* - {Boolean} sync
|
|
* - {Boolean} lazy
|
|
* - {Function} [preProcess]
|
|
* - {Function} [postProcess]
|
|
* @constructor
|
|
*/
|
|
|
|
function Watcher(vm, expOrFn, cb, options) {
|
|
// mix in options
|
|
if (options) {
|
|
extend(this, options);
|
|
}
|
|
var isFn = typeof expOrFn === 'function';
|
|
this.vm = vm;
|
|
vm._watchers.push(this);
|
|
this.expression = expOrFn;
|
|
this.cb = cb;
|
|
this.id = ++uid$2; // uid for batching
|
|
this.active = true;
|
|
this.dirty = this.lazy; // for lazy watchers
|
|
this.deps = [];
|
|
this.newDeps = [];
|
|
this.depIds = new _Set();
|
|
this.newDepIds = new _Set();
|
|
// parse expression for getter
|
|
if (isFn) {
|
|
this.getter = expOrFn;
|
|
} else {
|
|
this.getter = parsePath(expOrFn);
|
|
if (!this.getter) {
|
|
this.getter = function () {};
|
|
process.env.NODE_ENV !== 'production' && warn('Failed watching path: ' + expOrFn + 'Watcher only accepts simple dot-delimited paths. ' + 'For full control, use a function instead.', vm);
|
|
}
|
|
}
|
|
this.value = this.lazy ? undefined : this.get();
|
|
// state for avoiding false triggers for deep and Array
|
|
// watchers during vm._digest()
|
|
this.queued = this.shallow = false;
|
|
}
|
|
|
|
/**
|
|
* Evaluate the getter, and re-collect dependencies.
|
|
*/
|
|
|
|
Watcher.prototype.get = function () {
|
|
this.beforeGet();
|
|
var value = this.getter.call(this.vm, this.vm);
|
|
// "touch" every property so they are all tracked as
|
|
// dependencies for deep watching
|
|
if (this.deep) {
|
|
traverse(value);
|
|
}
|
|
this.afterGet();
|
|
return value;
|
|
};
|
|
|
|
/**
|
|
* Prepare for dependency collection.
|
|
*/
|
|
|
|
Watcher.prototype.beforeGet = function () {
|
|
prevTarget = Dep.target;
|
|
Dep.target = this;
|
|
};
|
|
|
|
/**
|
|
* Add a dependency to this directive.
|
|
*
|
|
* @param {Dep} dep
|
|
*/
|
|
|
|
Watcher.prototype.addDep = function (dep) {
|
|
var id = dep.id;
|
|
if (!this.newDepIds.has(id)) {
|
|
this.newDepIds.add(id);
|
|
this.newDeps.push(dep);
|
|
if (!this.depIds.has(id)) {
|
|
dep.addSub(this);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Clean up for dependency collection.
|
|
*/
|
|
|
|
Watcher.prototype.afterGet = function () {
|
|
Dep.target = prevTarget;
|
|
var i = this.deps.length;
|
|
while (i--) {
|
|
var dep = this.deps[i];
|
|
if (!this.newDepIds.has(dep.id)) {
|
|
dep.removeSub(this);
|
|
}
|
|
}
|
|
var tmp = this.depIds;
|
|
this.depIds = this.newDepIds;
|
|
this.newDepIds = tmp;
|
|
this.newDepIds.clear();
|
|
tmp = this.deps;
|
|
this.deps = this.newDeps;
|
|
this.newDeps = tmp;
|
|
this.newDeps.length = 0;
|
|
};
|
|
|
|
/**
|
|
* Subscriber interface.
|
|
* Will be called when a dependency changes.
|
|
*
|
|
* @param {Boolean} shallow
|
|
*/
|
|
|
|
Watcher.prototype.update = function (shallow) {
|
|
if (this.lazy) {
|
|
this.dirty = true;
|
|
} else if (this.sync) {
|
|
this.run();
|
|
} else {
|
|
// if queued, only overwrite shallow with non-shallow,
|
|
// but not the other way around.
|
|
this.shallow = this.queued ? shallow ? this.shallow : false : !!shallow;
|
|
this.queued = true;
|
|
pushWatcher(this);
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Batcher job interface.
|
|
* Will be called by the batcher.
|
|
*/
|
|
|
|
Watcher.prototype.run = function () {
|
|
if (this.active) {
|
|
var value = this.get();
|
|
if (value !== this.value ||
|
|
// Deep watchers and watchers on Object/Arrays should fire even
|
|
// when the value is the same, because the value may
|
|
// have mutated; but only do so if this is a
|
|
// non-shallow update (caused by a vm digest).
|
|
(isObject(value) || this.deep) && !this.shallow) {
|
|
// set new value
|
|
var oldValue = this.value;
|
|
this.value = value;
|
|
this.cb.call(this.vm, value, oldValue);
|
|
}
|
|
this.queued = this.shallow = false;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Evaluate the value of the watcher.
|
|
* This only gets called for lazy watchers.
|
|
*/
|
|
|
|
Watcher.prototype.evaluate = function () {
|
|
// avoid overwriting another watcher that is being
|
|
// collected.
|
|
var current = Dep.target;
|
|
this.value = this.get();
|
|
this.dirty = false;
|
|
Dep.target = current;
|
|
};
|
|
|
|
/**
|
|
* Depend on all deps collected by this watcher.
|
|
*/
|
|
|
|
Watcher.prototype.depend = function () {
|
|
var i = this.deps.length;
|
|
while (i--) {
|
|
this.deps[i].depend();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Remove self from all dependencies' subcriber list.
|
|
*/
|
|
|
|
Watcher.prototype.teardown = function () {
|
|
if (this.active) {
|
|
// remove self from vm's watcher list
|
|
// this is a somewhat expensive operation so we skip it
|
|
// if the vm is being destroyed or is performing a v-for
|
|
// re-render (the watcher list is then filtered by v-for).
|
|
if (!this.vm._isBeingDestroyed && !this.vm._vForRemoving) {
|
|
remove(this.vm._watchers, this);
|
|
}
|
|
var i = this.deps.length;
|
|
while (i--) {
|
|
this.deps[i].removeSub(this);
|
|
}
|
|
this.active = false;
|
|
this.vm = this.cb = this.value = null;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Recrusively traverse an object to evoke all converted
|
|
* getters, so that every nested property inside the object
|
|
* is collected as a "deep" dependency.
|
|
*
|
|
* @param {*} val
|
|
* @param {Set} seen
|
|
*/
|
|
|
|
var seenObjects = new _Set();
|
|
function traverse(val, seen) {
|
|
var i = void 0,
|
|
keys = void 0,
|
|
isA = void 0,
|
|
isO = void 0;
|
|
if (!seen) {
|
|
seen = seenObjects;
|
|
seen.clear();
|
|
}
|
|
isA = isArray(val);
|
|
isO = isObject(val);
|
|
if (isA || isO) {
|
|
if (val.__ob__) {
|
|
var depId = val.__ob__.dep.id;
|
|
if (seen.has(depId)) {
|
|
return;
|
|
} else {
|
|
seen.add(depId);
|
|
}
|
|
}
|
|
if (isA) {
|
|
i = val.length;
|
|
while (i--) {
|
|
traverse(val[i], seen);
|
|
}
|
|
} else if (isO) {
|
|
keys = Object.keys(val);
|
|
i = keys.length;
|
|
while (i--) {
|
|
traverse(val[keys[i]], seen);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function initState(vm) {
|
|
vm._watchers = [];
|
|
initProps(vm);
|
|
initData(vm);
|
|
initComputed(vm);
|
|
initMethods(vm);
|
|
initWatch(vm);
|
|
}
|
|
|
|
function initProps(vm) {
|
|
var props = vm.$options.props;
|
|
var propsData = vm.$options.propsData;
|
|
if (props) {
|
|
var keys = vm.$options.propKeys = Object.keys(props);
|
|
var isRoot = !vm.$parent;
|
|
// root instance props should be converted
|
|
observerState.shouldConvert = isRoot;
|
|
for (var i = 0; i < keys.length; i++) {
|
|
var key = keys[i];
|
|
defineReactive(vm, key, validateProp(vm, key, propsData));
|
|
}
|
|
observerState.shouldConvert = true;
|
|
}
|
|
}
|
|
|
|
function initData(vm) {
|
|
var data = vm.$options.data;
|
|
data = vm._data = typeof data === 'function' ? data() : data || {};
|
|
if (!isPlainObject(data)) {
|
|
data = {};
|
|
process.env.NODE_ENV !== 'production' && warn('data functions should return an object.', vm);
|
|
}
|
|
// proxy data on instance
|
|
var keys = Object.keys(data);
|
|
var i = keys.length;
|
|
while (i--) {
|
|
proxy(vm, keys[i]);
|
|
}
|
|
// observe data
|
|
observe(data, vm);
|
|
}
|
|
|
|
function noop() {}
|
|
|
|
function initComputed(vm) {
|
|
var computed = vm.$options.computed;
|
|
if (computed) {
|
|
for (var key in computed) {
|
|
var userDef = computed[key];
|
|
var def = {
|
|
enumerable: true,
|
|
configurable: true
|
|
};
|
|
if (typeof userDef === 'function') {
|
|
def.get = makeComputedGetter(userDef, vm);
|
|
def.set = noop;
|
|
} else {
|
|
def.get = userDef.get ? userDef.cache !== false ? makeComputedGetter(userDef.get, vm) : bind(userDef.get, vm) : noop;
|
|
def.set = userDef.set ? bind(userDef.set, vm) : noop;
|
|
}
|
|
Object.defineProperty(vm, key, def);
|
|
}
|
|
}
|
|
}
|
|
|
|
function makeComputedGetter(getter, owner) {
|
|
var watcher = new Watcher(owner, getter, null, {
|
|
lazy: true
|
|
});
|
|
return function computedGetter() {
|
|
if (watcher.dirty) {
|
|
watcher.evaluate();
|
|
}
|
|
if (Dep.target) {
|
|
watcher.depend();
|
|
}
|
|
return watcher.value;
|
|
};
|
|
}
|
|
|
|
function initMethods(vm) {
|
|
var methods = vm.$options.methods;
|
|
if (methods) {
|
|
for (var key in methods) {
|
|
vm[key] = bind(methods[key], vm);
|
|
}
|
|
}
|
|
}
|
|
|
|
function initWatch(vm) {
|
|
var watch = vm.$options.watch;
|
|
if (watch) {
|
|
for (var key in watch) {
|
|
var handler = watch[key];
|
|
if (isArray(handler)) {
|
|
for (var i = 0; i < handler.length; i++) {
|
|
createWatcher(vm, key, handler[i]);
|
|
}
|
|
} else {
|
|
createWatcher(vm, key, handler);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function createWatcher(vm, key, handler) {
|
|
var options = void 0;
|
|
if (isPlainObject(handler)) {
|
|
options = handler;
|
|
handler = handler.handler;
|
|
}
|
|
if (typeof handler === 'string') {
|
|
handler = vm[handler];
|
|
}
|
|
vm.$watch(key, handler, options);
|
|
}
|
|
|
|
function stateMixin(Vue) {
|
|
Object.defineProperty(Vue.prototype, '$data', {
|
|
get: function get() {
|
|
return this._data;
|
|
},
|
|
set: function set(newData) {
|
|
if (newData !== this._data) {
|
|
setData(this, newData);
|
|
}
|
|
}
|
|
});
|
|
|
|
Vue.prototype.$watch = function (fn, cb, options) {
|
|
options = options || {};
|
|
options.user = true;
|
|
var watcher = new Watcher(this, fn, cb, options);
|
|
if (options.immediate) {
|
|
cb.call(this, watcher.value);
|
|
}
|
|
return function unwatchFn() {
|
|
watcher.teardown();
|
|
};
|
|
};
|
|
}
|
|
|
|
function setData(vm, newData) {
|
|
newData = newData || {};
|
|
var oldData = vm._data;
|
|
vm._data = newData;
|
|
var keys, key, i;
|
|
// unproxy keys not present in new data
|
|
keys = Object.keys(oldData);
|
|
i = keys.length;
|
|
while (i--) {
|
|
key = keys[i];
|
|
if (!(key in newData)) {
|
|
unproxy(vm, key);
|
|
}
|
|
}
|
|
// proxy keys not already proxied,
|
|
// and trigger change for changed values
|
|
keys = Object.keys(newData);
|
|
i = keys.length;
|
|
while (i--) {
|
|
key = keys[i];
|
|
if (!hasOwn(vm, key)) {
|
|
// new property
|
|
proxy(vm, key);
|
|
}
|
|
}
|
|
oldData.__ob__.removeVm(vm);
|
|
observe(newData, vm);
|
|
vm.$forceUpdate();
|
|
}
|
|
|
|
function VNode(tag, data, children, text, elm, ns, context) {
|
|
return {
|
|
tag: tag,
|
|
data: data,
|
|
children: children,
|
|
text: text,
|
|
elm: elm,
|
|
ns: ns,
|
|
context: context,
|
|
key: data && data.key
|
|
};
|
|
}
|
|
|
|
function flatten(children) {
|
|
if (typeof children === 'string') {
|
|
return [VNode(undefined, undefined, undefined, children)];
|
|
}
|
|
if (isArray(children)) {
|
|
var res = [];
|
|
for (var i = 0, l = children.length; i < l; i++) {
|
|
var c = children[i];
|
|
// flatten nested
|
|
if (isArray(c)) {
|
|
res.push.apply(res, flatten(c));
|
|
} else if (isPrimitive(c)) {
|
|
// convert primitive to vnode
|
|
res.push(VNode(undefined, undefined, undefined, c));
|
|
} else if (c) {
|
|
res.push(c);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
}
|
|
|
|
function updateListeners(on, oldOn, add) {
|
|
var name = void 0,
|
|
cur = void 0,
|
|
old = void 0,
|
|
event = void 0,
|
|
capture = void 0;
|
|
for (name in on) {
|
|
cur = on[name];
|
|
old = oldOn[name];
|
|
if (old === undefined) {
|
|
capture = name.charAt(0) === '!';
|
|
event = capture ? name.slice(1) : name;
|
|
if (isArray(cur)) {
|
|
add(event, arrInvoker(cur), capture);
|
|
} else {
|
|
cur = { fn: cur };
|
|
on[name] = cur;
|
|
add(event, fnInvoker(cur), capture);
|
|
}
|
|
} else if (isArray(old)) {
|
|
old.length = cur.length;
|
|
for (var i = 0; i < old.length; i++) {
|
|
old[i] = cur[i];
|
|
}on[name] = old;
|
|
} else {
|
|
old.fn = cur;
|
|
on[name] = old;
|
|
}
|
|
}
|
|
}
|
|
|
|
function arrInvoker(arr) {
|
|
return function (ev) {
|
|
for (var i = 0; i < arr.length; i++) {
|
|
arr[i](ev);
|
|
}
|
|
};
|
|
}
|
|
|
|
function fnInvoker(o) {
|
|
return function (ev) {
|
|
o.fn(ev);
|
|
};
|
|
}
|
|
|
|
function initLifecycle(vm) {
|
|
var options = vm.$options;
|
|
|
|
vm.$parent = options.parent;
|
|
vm.$root = vm.$parent ? vm.$parent.$root : vm;
|
|
if (vm.$parent) {
|
|
vm.$parent.$children.push(vm);
|
|
}
|
|
|
|
vm.$children = [];
|
|
vm.$refs = {};
|
|
|
|
vm._isDestroyed = false;
|
|
vm._isBeingDestroyed = false;
|
|
}
|
|
|
|
function lifecycleMixin(Vue) {
|
|
Vue.prototype._mount = function () {
|
|
var _this = this;
|
|
|
|
if (!this.$options.render) {
|
|
this.$options.render = function () {
|
|
return _this.$createElement('div');
|
|
};
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
if (this.$options.template) {
|
|
warn('You are using the runtime-only build of Vue where the template ' + 'option is not available. Either pre-compile the templates into ' + 'render functions, or use the compiler-included build.', this);
|
|
} else {
|
|
warn('Failed to mount component: template or render function not defined.', this);
|
|
}
|
|
}
|
|
}
|
|
// render static sub-trees for once on mount
|
|
var staticRenderFns = this.$options.staticRenderFns;
|
|
if (staticRenderFns) {
|
|
this._staticTrees = new Array(staticRenderFns.length);
|
|
for (var i = 0; i < staticRenderFns.length; i++) {
|
|
this._staticTrees[i] = staticRenderFns[i].call(this._renderProxy);
|
|
}
|
|
}
|
|
this._watcher = new Watcher(this, this._render, this._update);
|
|
this._update(this._watcher.value);
|
|
this._mounted = true;
|
|
// root instance, call ready on self
|
|
if (this.$root === this) {
|
|
callHook(this, 'ready');
|
|
}
|
|
return this;
|
|
};
|
|
|
|
Vue.prototype._update = function (vnode) {
|
|
if (this._mounted) {
|
|
callHook(this, 'beforeUpdate');
|
|
}
|
|
var parentNode = this.$options._parentVnode;
|
|
// set vnode parent before patch
|
|
vnode.parent = parentNode;
|
|
if (!this._vnode) {
|
|
// Vue.prototype.__patch__ is injected in entry points
|
|
// based on the rendering backend used.
|
|
this.$el = this.__patch__(this.$el, vnode);
|
|
} else {
|
|
this.$el = this.__patch__(this._vnode, vnode);
|
|
}
|
|
this._vnode = vnode;
|
|
// set parent vnode element after patch
|
|
if (parentNode) {
|
|
parentNode.elm = this.$el;
|
|
}
|
|
if (this._mounted) {
|
|
callHook(this, 'updated');
|
|
}
|
|
};
|
|
|
|
Vue.prototype._updateFromParent = function (propsData, listeners, parentVnode, children) {
|
|
var _this2 = this;
|
|
|
|
this.$options._parentVnode = parentVnode;
|
|
this.$options._renderChildren = children;
|
|
// update props
|
|
if (propsData && this.$options.props) {
|
|
observerState.shouldConvert = false;
|
|
var propKeys = this.$options.propKeys;
|
|
for (var i = 0; i < propKeys.length; i++) {
|
|
var key = propKeys[i];
|
|
this[key] = validateProp(this, key, propsData);
|
|
}
|
|
observerState.shouldConvert = true;
|
|
}
|
|
// update listeners
|
|
if (listeners) {
|
|
var oldListeners = this.$options._parentListeners;
|
|
this.$options._parentListeners = listeners;
|
|
updateListeners(listeners, oldListeners || {}, function (event, handler) {
|
|
_this2.$on(event, handler);
|
|
});
|
|
}
|
|
};
|
|
|
|
Vue.prototype.$forceUpdate = function () {
|
|
this._watcher.update();
|
|
};
|
|
|
|
Vue.prototype.$destroy = function () {
|
|
if (this._isDestroyed) {
|
|
return;
|
|
}
|
|
callHook(this, 'beforeDestroy');
|
|
this._isBeingDestroyed = true;
|
|
// remove self from parent
|
|
var parent = this.$parent;
|
|
if (parent && !parent._isBeingDestroyed) {
|
|
remove(parent.$children, this);
|
|
}
|
|
// unregister ref
|
|
if (this._ref) {
|
|
this._context.$refs[this._ref] = undefined;
|
|
}
|
|
// teardown watchers
|
|
var i = this._watchers.length;
|
|
while (i--) {
|
|
this._watchers[i].teardown();
|
|
}
|
|
// remove reference from data ob
|
|
// frozen object may not have observer.
|
|
if (this._data.__ob__) {
|
|
this._data.__ob__.removeVm(this);
|
|
}
|
|
// call the last hook...
|
|
this._isDestroyed = true;
|
|
callHook(this, 'destroyed');
|
|
// turn off all instance listeners.
|
|
this.$off();
|
|
};
|
|
}
|
|
|
|
function callHook(vm, hook) {
|
|
vm.$emit('pre-hook:' + hook);
|
|
var handlers = vm.$options[hook];
|
|
if (handlers) {
|
|
for (var i = 0, j = handlers.length; i < j; i++) {
|
|
handlers[i].call(vm);
|
|
}
|
|
}
|
|
vm.$emit('hook:' + hook);
|
|
}
|
|
|
|
var hooks = { init: init, prepatch: prepatch, insert: insert, destroy: destroy };
|
|
var hooksToMerge = Object.keys(hooks);
|
|
|
|
function createComponent(Ctor, data, parent, children, context) {
|
|
if (process.env.NODE_ENV !== 'production' && children && typeof children !== 'function') {
|
|
warn('A component\'s children should be a function that returns the ' + 'children array. This allows the component to track the children ' + 'dependencies and optimizes re-rendering.');
|
|
}
|
|
if (!Ctor) {
|
|
return;
|
|
}
|
|
if (isObject(Ctor)) {
|
|
Ctor = Vue.extend(Ctor);
|
|
}
|
|
if (process.env.NODE_ENV !== 'production' && typeof Ctor !== 'function') {
|
|
warn('Invalid Component definition: ' + Ctor, parent);
|
|
return;
|
|
}
|
|
|
|
// async component
|
|
if (!Ctor.cid) {
|
|
if (Ctor.resolved) {
|
|
Ctor = Ctor.resolved;
|
|
} else {
|
|
resolveAsyncComponent(Ctor, function () {
|
|
// it's ok to queue this on every render because
|
|
// $forceUpdate is buffered.
|
|
parent.$forceUpdate();
|
|
});
|
|
return;
|
|
}
|
|
}
|
|
|
|
data = data || {};
|
|
|
|
// merge component management hooks onto the placeholder node
|
|
mergeHooks(data);
|
|
|
|
// extract props
|
|
var propsData = extractProps(data, Ctor);
|
|
|
|
// extract listeners, since these needs to be treated as
|
|
// child component listeners instead of DOM listeners
|
|
var listeners = data.on;
|
|
if (listeners) {
|
|
data.on = null;
|
|
}
|
|
|
|
// return a placeholder vnode
|
|
var name = Ctor.options.name ? '-' + Ctor.options.name : '';
|
|
var vnode = VNode('vue-component-' + Ctor.cid + name, data, undefined, undefined, undefined, undefined, context);
|
|
vnode.componentOptions = { Ctor: Ctor, propsData: propsData, listeners: listeners, parent: parent, children: children };
|
|
return vnode;
|
|
}
|
|
|
|
function init(vnode) {
|
|
var _vnode$componentOptio = vnode.componentOptions;
|
|
var Ctor = _vnode$componentOptio.Ctor;
|
|
var propsData = _vnode$componentOptio.propsData;
|
|
var listeners = _vnode$componentOptio.listeners;
|
|
var parent = _vnode$componentOptio.parent;
|
|
var children = _vnode$componentOptio.children;
|
|
|
|
var child = new Ctor({
|
|
parent: parent,
|
|
propsData: propsData,
|
|
_parentVnode: vnode,
|
|
_parentListeners: listeners,
|
|
_renderChildren: children
|
|
});
|
|
// if this is a server-rendered mount,
|
|
// the vnode would already have an element.
|
|
// otherwise the child sets the parent vnode's elm when mounted
|
|
// and when updated.
|
|
child.$mount(vnode.elm);
|
|
vnode.child = child;
|
|
}
|
|
|
|
function prepatch(oldVnode, vnode) {
|
|
var _vnode$componentOptio2 = vnode.componentOptions;
|
|
var listeners = _vnode$componentOptio2.listeners;
|
|
var propsData = _vnode$componentOptio2.propsData;
|
|
var children = _vnode$componentOptio2.children;
|
|
|
|
vnode.child = oldVnode.child;
|
|
vnode.child._updateFromParent(propsData, // updated props
|
|
listeners, // updated listeners
|
|
vnode, // new parent vnode
|
|
children // new children
|
|
);
|
|
}
|
|
|
|
function insert(vnode) {
|
|
callHook(vnode.child, 'ready');
|
|
}
|
|
|
|
function destroy(vnode) {
|
|
vnode.child.$destroy();
|
|
}
|
|
|
|
function resolveAsyncComponent(factory, cb) {
|
|
if (factory.resolved) {
|
|
// cached
|
|
cb(factory.resolved);
|
|
} else if (factory.requested) {
|
|
// pool callbacks
|
|
factory.pendingCallbacks.push(cb);
|
|
} else {
|
|
(function () {
|
|
factory.requested = true;
|
|
var cbs = factory.pendingCallbacks = [cb];
|
|
factory(function resolve(res) {
|
|
if (isObject(res)) {
|
|
res = Vue.extend(res);
|
|
}
|
|
// cache resolved
|
|
factory.resolved = res;
|
|
// invoke callbacks
|
|
for (var i = 0, l = cbs.length; i < l; i++) {
|
|
cbs[i](res);
|
|
}
|
|
}, function reject(reason) {
|
|
process.env.NODE_ENV !== 'production' && warn('Failed to resolve async component: ' + factory + (reason ? '\nReason: ' + reason : ''));
|
|
});
|
|
})();
|
|
}
|
|
}
|
|
|
|
function extractProps(data, Ctor) {
|
|
// we are only extrating raw values here.
|
|
// validation and default values are handled in the child
|
|
// component itself.
|
|
var propOptions = Ctor.options.props;
|
|
if (!propOptions) {
|
|
return;
|
|
}
|
|
var res = {};
|
|
var attrs = data.attrs;
|
|
var props = data.props;
|
|
var staticAttrs = data.staticAttrs;
|
|
if (!attrs && !props) {
|
|
return res;
|
|
}
|
|
for (var key in propOptions) {
|
|
var altKey = hyphenate(key);
|
|
checkProp(res, attrs, key, altKey) || checkProp(res, props, key, altKey) || checkProp(res, staticAttrs, key, altKey);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
function checkProp(res, hash, key, altKey) {
|
|
if (hash) {
|
|
if (hasOwn(hash, key)) {
|
|
res[key] = hash[key];
|
|
delete hash[key];
|
|
return true;
|
|
} else if (hasOwn(hash, altKey)) {
|
|
res[key] = hash[altKey];
|
|
delete hash[altKey];
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
function mergeHooks(data) {
|
|
if (data.hook) {
|
|
for (var i = 0; i < hooksToMerge.length; i++) {
|
|
var key = hooksToMerge[i];
|
|
var fromParent = data.hook[key];
|
|
var ours = hooks[key];
|
|
data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
|
|
}
|
|
} else {
|
|
data.hook = hooks;
|
|
}
|
|
}
|
|
|
|
function mergeHook$1(a, b) {
|
|
// since all hooks have at most two args, use fixed args
|
|
// to avoid having to use fn.apply().
|
|
return function (_, __) {
|
|
a(_, __);
|
|
b(_, __);
|
|
};
|
|
}
|
|
|
|
function createElement(tag, data, children, namespace) {
|
|
var context = this;
|
|
var parent = renderState.activeInstance;
|
|
if (typeof tag === 'string') {
|
|
var Ctor = void 0;
|
|
if (config.isReservedTag(tag)) {
|
|
return VNode(tag, data, flatten(children), undefined, undefined, namespace, context);
|
|
} else if (Ctor = resolveAsset(context.$options, 'components', tag)) {
|
|
return createComponent(Ctor, data, parent, children, context);
|
|
} else {
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
if (!namespace && config.isUnknownElement(tag)) {
|
|
warn('Unknown custom element: <' + tag + '> - did you ' + 'register the component correctly? For recursive components, ' + 'make sure to provide the "name" option.');
|
|
}
|
|
}
|
|
return VNode(tag, data, flatten(children && children()), undefined, undefined, namespace, context);
|
|
}
|
|
} else {
|
|
return createComponent(tag, data, parent, children, context);
|
|
}
|
|
}
|
|
|
|
var renderState = {
|
|
activeInstance: null
|
|
};
|
|
|
|
function initRender(vm) {
|
|
vm._vnode = null;
|
|
vm._mounted = false;
|
|
vm._staticTrees = null;
|
|
vm.$slots = {};
|
|
// bind the public createElement fn to this instance
|
|
// so that we get proper render context inside it.
|
|
vm.$createElement = bind(createElement, vm);
|
|
if (vm.$options.el) {
|
|
vm.$mount(vm.$options.el);
|
|
}
|
|
}
|
|
|
|
function renderMixin(Vue) {
|
|
Vue.prototype._render = function () {
|
|
var prev = renderState.activeInstance;
|
|
renderState.activeInstance = this;
|
|
var _$options = this.$options;
|
|
var render = _$options.render;
|
|
var _renderChildren = _$options._renderChildren;
|
|
// resolve slots. becaues slots are rendered in parent scope,
|
|
// we set the activeInstance to parent.
|
|
|
|
if (_renderChildren) {
|
|
resolveSlots(this, _renderChildren);
|
|
}
|
|
// render self
|
|
var vnode = render.call(this._renderProxy);
|
|
// restore render state
|
|
renderState.activeInstance = prev;
|
|
return vnode;
|
|
};
|
|
|
|
// shorthands used in render functions
|
|
Vue.prototype.__h__ = createElement;
|
|
|
|
// toString for mustaches
|
|
Vue.prototype.__toString__ = renderString;
|
|
|
|
// render v-for
|
|
Vue.prototype.__renderList__ = function (val, render) {
|
|
var ret = void 0,
|
|
i = void 0,
|
|
l = void 0,
|
|
keys = void 0,
|
|
key = void 0;
|
|
if (isArray(val)) {
|
|
ret = new Array(val.length);
|
|
for (i = 0, l = val.length; i < l; i++) {
|
|
ret[i] = render(val[i], i, i);
|
|
}
|
|
} else if (typeof val === 'number') {
|
|
ret = new Array(val);
|
|
for (i = 0; i < val; i++) {
|
|
ret[i] = render(i + 1, i, i);
|
|
}
|
|
} else if (isObject(val)) {
|
|
keys = Object.keys(val);
|
|
ret = new Array(keys.length);
|
|
for (i = 0, l = keys.length; i < l; i++) {
|
|
key = keys[i];
|
|
ret[i] = render(val[key], i, key);
|
|
}
|
|
}
|
|
return ret;
|
|
};
|
|
|
|
// register ref
|
|
Vue.prototype.__registerRef__ = function (key, ref, vFor, remove) {
|
|
var refs = this.$refs;
|
|
if (remove) {
|
|
if (vFor) {
|
|
remove(refs[key], ref);
|
|
} else {
|
|
refs[key] = undefined;
|
|
}
|
|
} else {
|
|
if (vFor) {
|
|
if (refs[key]) {
|
|
refs[key].push(ref);
|
|
} else {
|
|
refs[key] = [ref];
|
|
}
|
|
} else {
|
|
refs[key] = ref;
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
function resolveSlots(vm, children) {
|
|
if (children) {
|
|
children = flatten(isArray(children) ? children : children());
|
|
var slots = { default: children };
|
|
var i = children.length;
|
|
var name = void 0,
|
|
child = void 0;
|
|
while (i--) {
|
|
child = children[i];
|
|
if (name = child.data && child.data.slot) {
|
|
var slot = slots[name] || (slots[name] = []);
|
|
if (child.tag === 'template') {
|
|
slot.push.apply(slot, child.children);
|
|
} else {
|
|
slot.push(child);
|
|
}
|
|
children.splice(i, 1);
|
|
}
|
|
}
|
|
vm.$slots = slots;
|
|
}
|
|
}
|
|
|
|
function initEvents(vm) {
|
|
vm._events = Object.create(null);
|
|
// init parent attached events
|
|
var listeners = vm.$options._parentListeners;
|
|
if (listeners) {
|
|
updateListeners(listeners, {}, function (event, handler) {
|
|
vm.$on(event, handler);
|
|
});
|
|
}
|
|
}
|
|
|
|
function eventsMixin(Vue) {
|
|
Vue.prototype.$on = function (event, fn) {
|
|
(this._events[event] || (this._events[event] = [])).push(fn);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Adds an `event` listener that will be invoked a single
|
|
* time then automatically removed.
|
|
*
|
|
* @param {String} event
|
|
* @param {Function} fn
|
|
*/
|
|
|
|
Vue.prototype.$once = function (event, fn) {
|
|
var self = this;
|
|
function on() {
|
|
self.$off(event, on);
|
|
fn.apply(this, arguments);
|
|
}
|
|
on.fn = fn;
|
|
this.$on(event, on);
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Remove the given callback for `event` or all
|
|
* registered callbacks.
|
|
*
|
|
* @param {String} event
|
|
* @param {Function} fn
|
|
*/
|
|
|
|
Vue.prototype.$off = function (event, fn) {
|
|
var cbs;
|
|
// all
|
|
if (!arguments.length) {
|
|
this._events = Object.create(null);
|
|
return this;
|
|
}
|
|
// specific event
|
|
cbs = this._events[event];
|
|
if (!cbs) {
|
|
return this;
|
|
}
|
|
if (arguments.length === 1) {
|
|
this._events[event] = null;
|
|
return this;
|
|
}
|
|
// specific handler
|
|
var cb;
|
|
var i = cbs.length;
|
|
while (i--) {
|
|
cb = cbs[i];
|
|
if (cb === fn || cb.fn === fn) {
|
|
cbs.splice(i, 1);
|
|
break;
|
|
}
|
|
}
|
|
return this;
|
|
};
|
|
|
|
/**
|
|
* Trigger an event on self.
|
|
*
|
|
* @param {String} event
|
|
*/
|
|
|
|
Vue.prototype.$emit = function (event) {
|
|
var cbs = this._events[event];
|
|
if (cbs) {
|
|
cbs = cbs.length > 1 ? toArray(cbs) : cbs;
|
|
var args = toArray(arguments, 1);
|
|
for (var i = 0, l = cbs.length; i < l; i++) {
|
|
cbs[i].apply(this, args);
|
|
}
|
|
}
|
|
};
|
|
}
|
|
|
|
var uid = 0;
|
|
|
|
function Vue(options) {
|
|
this._init(options);
|
|
}
|
|
|
|
Vue.prototype._init = function (options) {
|
|
// a uid
|
|
this._uid = uid++;
|
|
// a flag to avoid this being observed
|
|
this._isVue = true;
|
|
// merge options
|
|
this.$options = mergeOptions(this.constructor.options, options || {}, this);
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
initProxy(this);
|
|
} else {
|
|
this._renderProxy = this;
|
|
}
|
|
initLifecycle(this);
|
|
initEvents(this);
|
|
callHook(this, 'init');
|
|
initState(this);
|
|
callHook(this, 'created');
|
|
initRender(this);
|
|
};
|
|
|
|
Vue.prototype.$nextTick = function (fn) {
|
|
nextTick(fn, this);
|
|
};
|
|
|
|
stateMixin(Vue);
|
|
eventsMixin(Vue);
|
|
lifecycleMixin(Vue);
|
|
renderMixin(Vue);
|
|
|
|
function initUse(Vue) {
|
|
/**
|
|
* Plugin system
|
|
*
|
|
* @param {Object} plugin
|
|
*/
|
|
|
|
Vue.use = function (plugin) {
|
|
/* istanbul ignore if */
|
|
if (plugin.installed) {
|
|
return;
|
|
}
|
|
// additional parameters
|
|
var args = toArray(arguments, 1);
|
|
args.unshift(this);
|
|
if (typeof plugin.install === 'function') {
|
|
plugin.install.apply(plugin, args);
|
|
} else {
|
|
plugin.apply(null, args);
|
|
}
|
|
plugin.installed = true;
|
|
return this;
|
|
};
|
|
}
|
|
|
|
function initMixin(Vue) {
|
|
Vue.mixin = function (mixin) {
|
|
Vue.options = mergeOptions(Vue.options, mixin);
|
|
};
|
|
}
|
|
|
|
function initExtend(Vue) {
|
|
/**
|
|
* Each instance constructor, including Vue, has a unique
|
|
* cid. This enables us to create wrapped "child
|
|
* constructors" for prototypal inheritance and cache them.
|
|
*/
|
|
|
|
Vue.cid = 0;
|
|
var cid = 1;
|
|
|
|
/**
|
|
* Class inheritance
|
|
*
|
|
* @param {Object} extendOptions
|
|
*/
|
|
|
|
Vue.extend = function (extendOptions) {
|
|
extendOptions = extendOptions || {};
|
|
var Super = this;
|
|
var isFirstExtend = Super.cid === 0;
|
|
if (isFirstExtend && extendOptions._Ctor) {
|
|
return extendOptions._Ctor;
|
|
}
|
|
var name = extendOptions.name || Super.options.name;
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
if (!/^[a-zA-Z][\w-]*$/.test(name)) {
|
|
warn('Invalid component name: "' + name + '". Component names ' + 'can only contain alphanumeric characaters and the hyphen.');
|
|
name = null;
|
|
}
|
|
}
|
|
var Sub = function VueComponent(options) {
|
|
this._init(options);
|
|
};
|
|
Sub.prototype = Object.create(Super.prototype);
|
|
Sub.prototype.constructor = Sub;
|
|
Sub.cid = cid++;
|
|
Sub.options = mergeOptions(Super.options, extendOptions);
|
|
Sub['super'] = Super;
|
|
// allow further extension
|
|
Sub.extend = Super.extend;
|
|
// create asset registers, so extended classes
|
|
// can have their private assets too.
|
|
config._assetTypes.forEach(function (type) {
|
|
Sub[type] = Super[type];
|
|
});
|
|
// enable recursive self-lookup
|
|
if (name) {
|
|
Sub.options.components[name] = Sub;
|
|
}
|
|
// cache constructor
|
|
if (isFirstExtend) {
|
|
extendOptions._Ctor = Sub;
|
|
}
|
|
return Sub;
|
|
};
|
|
}
|
|
|
|
function initAssetRegisters(Vue) {
|
|
/**
|
|
* Create asset registration methods with the following
|
|
* signature:
|
|
*
|
|
* @param {String} id
|
|
* @param {*} definition
|
|
*/
|
|
|
|
config._assetTypes.forEach(function (type) {
|
|
Vue[type] = function (id, definition) {
|
|
if (!definition) {
|
|
return this.options[type + 's'][id];
|
|
} else {
|
|
/* istanbul ignore if */
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
if (type === 'component' && config.isReservedTag(id)) {
|
|
warn('Do not use built-in or reserved HTML elements as component ' + 'id: ' + id);
|
|
}
|
|
}
|
|
if (type === 'component' && isPlainObject(definition)) {
|
|
definition.name = id;
|
|
definition = Vue.extend(definition);
|
|
}
|
|
this.options[type + 's'][id] = definition;
|
|
return definition;
|
|
}
|
|
};
|
|
});
|
|
}
|
|
|
|
function initGlobalAPI(Vue) {
|
|
Vue.config = config;
|
|
Vue.util = util;
|
|
Vue.set = set;
|
|
Vue.delete = del;
|
|
Vue.nextTick = nextTick;
|
|
|
|
Vue.options = {
|
|
directives: Object.create(null),
|
|
filters: Object.create(null),
|
|
components: Object.create(null),
|
|
transitions: Object.create(null)
|
|
};
|
|
|
|
initUse(Vue);
|
|
initMixin(Vue);
|
|
initExtend(Vue);
|
|
initAssetRegisters(Vue);
|
|
}
|
|
|
|
initGlobalAPI(Vue);
|
|
|
|
Vue.version = '2.0.0-alpha.0';
|
|
|
|
var emptyNode = VNode('', {}, []);
|
|
var hooks$1 = ['create', 'update', 'remove', 'destroy'];
|
|
|
|
function isUndef(s) {
|
|
return s === undefined;
|
|
}
|
|
|
|
function isDef(s) {
|
|
return s !== undefined;
|
|
}
|
|
|
|
function sameVnode(vnode1, vnode2) {
|
|
return vnode1.key === vnode2.key && vnode1.tag === vnode2.tag;
|
|
}
|
|
|
|
function createKeyToOldIdx(children, beginIdx, endIdx) {
|
|
var i = void 0,
|
|
key = void 0;
|
|
var map = {};
|
|
for (i = beginIdx; i <= endIdx; ++i) {
|
|
key = children[i].key;
|
|
if (isDef(key)) map[key] = i;
|
|
}
|
|
return map;
|
|
}
|
|
|
|
function createPatchFunction(backend) {
|
|
var i = void 0,
|
|
j = void 0;
|
|
var cbs = {};
|
|
|
|
var modules = backend.modules;
|
|
var nodeOps = backend.nodeOps;
|
|
|
|
|
|
for (i = 0; i < hooks$1.length; ++i) {
|
|
cbs[hooks$1[i]] = [];
|
|
for (j = 0; j < modules.length; ++j) {
|
|
if (modules[j][hooks$1[i]] !== undefined) cbs[hooks$1[i]].push(modules[j][hooks$1[i]]);
|
|
}
|
|
}
|
|
|
|
function emptyNodeAt(elm) {
|
|
return VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm);
|
|
}
|
|
|
|
function createRmCb(childElm, listeners) {
|
|
function remove() {
|
|
if (--remove.listeners === 0) {
|
|
removeElement(childElm);
|
|
}
|
|
}
|
|
remove.listeners = listeners;
|
|
return remove;
|
|
}
|
|
|
|
function removeElement(el) {
|
|
var parent = nodeOps.parentNode(el);
|
|
nodeOps.removeChild(parent, el);
|
|
}
|
|
|
|
function createElm(vnode, insertedVnodeQueue) {
|
|
var i = void 0,
|
|
elm = void 0;
|
|
var data = vnode.data;
|
|
if (isDef(data)) {
|
|
if (isDef(i = data.hook) && isDef(i = i.init)) i(vnode);
|
|
// after calling the init hook, if the vnode is a child component
|
|
// it should've created a child instance and mounted it. the child
|
|
// component also has set the placeholder vnode's elm.
|
|
// in that case we can just return the element and be done.
|
|
if (isDef(i = vnode.child)) {
|
|
invokeCreateHooks(vnode, insertedVnodeQueue);
|
|
return vnode.elm;
|
|
}
|
|
}
|
|
var children = vnode.children;
|
|
var tag = vnode.tag;
|
|
if (isDef(tag)) {
|
|
elm = vnode.elm = vnode.ns ? nodeOps.createElementNS(vnode.ns, tag) : nodeOps.createElement(tag);
|
|
if (Array.isArray(children)) {
|
|
for (i = 0; i < children.length; ++i) {
|
|
nodeOps.appendChild(elm, createElm(children[i], insertedVnodeQueue));
|
|
}
|
|
} else if (isPrimitive(vnode.text)) {
|
|
nodeOps.appendChild(elm, nodeOps.createTextNode(vnode.text));
|
|
}
|
|
if (isDef(data)) {
|
|
invokeCreateHooks(vnode, insertedVnodeQueue);
|
|
}
|
|
} else {
|
|
elm = vnode.elm = nodeOps.createTextNode(vnode.text);
|
|
}
|
|
return vnode.elm;
|
|
}
|
|
|
|
function invokeCreateHooks(vnode, insertedVnodeQueue) {
|
|
for (var _i = 0; _i < cbs.create.length; ++_i) {
|
|
cbs.create[_i](emptyNode, vnode);
|
|
}
|
|
i = vnode.data.hook; // Reuse variable
|
|
if (isDef(i)) {
|
|
if (i.create) i.create(emptyNode, vnode);
|
|
if (i.insert) insertedVnodeQueue.push(vnode);
|
|
}
|
|
}
|
|
|
|
function addVnodes(parentElm, before, vnodes, startIdx, endIdx, insertedVnodeQueue) {
|
|
for (; startIdx <= endIdx; ++startIdx) {
|
|
nodeOps.insertBefore(parentElm, createElm(vnodes[startIdx], insertedVnodeQueue), before);
|
|
}
|
|
}
|
|
|
|
function invokeDestroyHook(vnode) {
|
|
var i = void 0,
|
|
j = void 0;
|
|
var data = vnode.data;
|
|
if (isDef(data)) {
|
|
if (isDef(i = data.hook) && isDef(i = i.destroy)) i(vnode);
|
|
for (i = 0; i < cbs.destroy.length; ++i) {
|
|
cbs.destroy[i](vnode);
|
|
}if (isDef(i = vnode.children)) {
|
|
for (j = 0; j < vnode.children.length; ++j) {
|
|
invokeDestroyHook(vnode.children[j]);
|
|
}
|
|
}
|
|
if (isDef(i = vnode.child)) {
|
|
invokeDestroyHook(i._vnode);
|
|
}
|
|
}
|
|
}
|
|
|
|
function removeVnodes(parentElm, vnodes, startIdx, endIdx) {
|
|
for (; startIdx <= endIdx; ++startIdx) {
|
|
var ch = vnodes[startIdx];
|
|
if (isDef(ch)) {
|
|
if (isDef(ch.tag)) {
|
|
invokeDestroyHook(ch);
|
|
removeAndInvokeRemoveHook(ch);
|
|
} else {
|
|
// Text node
|
|
nodeOps.removeChild(parentElm, ch.elm);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function removeAndInvokeRemoveHook(vnode, rm) {
|
|
if (rm || isDef(vnode.data)) {
|
|
var listeners = cbs.remove.length + 1;
|
|
if (!rm) {
|
|
// directly removing
|
|
rm = createRmCb(vnode.elm, listeners);
|
|
} else {
|
|
// we have a recursively passed down rm callback
|
|
// increase the listeners count
|
|
rm.listeners += listeners;
|
|
}
|
|
// recursively invoke hooks on child component root node
|
|
if (isDef(i = vnode.child) && isDef(i = i._vnode) && isDef(i.data)) {
|
|
removeAndInvokeRemoveHook(i, rm);
|
|
}
|
|
for (i = 0; i < cbs.remove.length; ++i) {
|
|
cbs.remove[i](vnode, rm);
|
|
}
|
|
if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
|
|
i(vnode, rm);
|
|
} else {
|
|
rm();
|
|
}
|
|
} else {
|
|
removeElement(vnode.elm);
|
|
}
|
|
}
|
|
|
|
function updateChildren(parentElm, oldCh, newCh, insertedVnodeQueue) {
|
|
var oldStartIdx = 0;
|
|
var newStartIdx = 0;
|
|
var oldEndIdx = oldCh.length - 1;
|
|
var oldStartVnode = oldCh[0];
|
|
var oldEndVnode = oldCh[oldEndIdx];
|
|
var newEndIdx = newCh.length - 1;
|
|
var newStartVnode = newCh[0];
|
|
var newEndVnode = newCh[newEndIdx];
|
|
var oldKeyToIdx = void 0,
|
|
idxInOld = void 0,
|
|
elmToMove = void 0,
|
|
before = void 0;
|
|
|
|
while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
|
|
if (isUndef(oldStartVnode)) {
|
|
oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
|
|
} else if (isUndef(oldEndVnode)) {
|
|
oldEndVnode = oldCh[--oldEndIdx];
|
|
} else if (sameVnode(oldStartVnode, newStartVnode)) {
|
|
patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
|
|
oldStartVnode = oldCh[++oldStartIdx];
|
|
newStartVnode = newCh[++newStartIdx];
|
|
} else if (sameVnode(oldEndVnode, newEndVnode)) {
|
|
patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
|
|
oldEndVnode = oldCh[--oldEndIdx];
|
|
newEndVnode = newCh[--newEndIdx];
|
|
} else if (sameVnode(oldStartVnode, newEndVnode)) {
|
|
// Vnode moved right
|
|
patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
|
|
nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
|
|
oldStartVnode = oldCh[++oldStartIdx];
|
|
newEndVnode = newCh[--newEndIdx];
|
|
} else if (sameVnode(oldEndVnode, newStartVnode)) {
|
|
// Vnode moved left
|
|
patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
|
|
nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
|
|
oldEndVnode = oldCh[--oldEndIdx];
|
|
newStartVnode = newCh[++newStartIdx];
|
|
} else {
|
|
if (isUndef(oldKeyToIdx)) oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx);
|
|
idxInOld = oldKeyToIdx[newStartVnode.key];
|
|
if (isUndef(idxInOld)) {
|
|
// New element
|
|
nodeOps.insertBefore(parentElm, createElm(newStartVnode, insertedVnodeQueue), oldStartVnode.elm);
|
|
newStartVnode = newCh[++newStartIdx];
|
|
} else {
|
|
elmToMove = oldCh[idxInOld];
|
|
if (process.env.NODE_ENV !== 'production' && !elmToMove) {
|
|
warn('Duplicate track-by key: ' + idxInOld + '. ' + 'Make sure each v-for item has a unique track-by key.');
|
|
}
|
|
patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
|
|
oldCh[idxInOld] = undefined;
|
|
nodeOps.insertBefore(parentElm, elmToMove.elm, oldStartVnode.elm);
|
|
newStartVnode = newCh[++newStartIdx];
|
|
}
|
|
}
|
|
}
|
|
if (oldStartIdx > oldEndIdx) {
|
|
before = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
|
|
addVnodes(parentElm, before, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
|
|
} else if (newStartIdx > newEndIdx) {
|
|
removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
|
|
}
|
|
}
|
|
|
|
function patchVnode(oldVnode, vnode, insertedVnodeQueue) {
|
|
var i = void 0,
|
|
hook = void 0;
|
|
if (isDef(i = vnode.data) && isDef(hook = i.hook) && isDef(i = hook.prepatch)) {
|
|
i(oldVnode, vnode);
|
|
}
|
|
// skip nodes with v-pre
|
|
if (isDef(i = vnode.data) && i.pre) {
|
|
return;
|
|
}
|
|
var elm = vnode.elm = oldVnode.elm;
|
|
var oldCh = oldVnode.children;
|
|
var ch = vnode.children;
|
|
if (oldVnode === vnode) return;
|
|
if (!sameVnode(oldVnode, vnode)) {
|
|
var parentElm = nodeOps.parentNode(oldVnode.elm);
|
|
elm = createElm(vnode, insertedVnodeQueue);
|
|
nodeOps.insertBefore(parentElm, elm, oldVnode.elm);
|
|
removeVnodes(parentElm, [oldVnode], 0, 0);
|
|
return;
|
|
}
|
|
if (isDef(vnode.data)) {
|
|
for (i = 0; i < cbs.update.length; ++i) {
|
|
cbs.update[i](oldVnode, vnode);
|
|
}i = vnode.data.hook;
|
|
if (isDef(i) && isDef(i = i.update)) i(oldVnode, vnode);
|
|
}
|
|
if (isUndef(vnode.text)) {
|
|
if (isDef(oldCh) && isDef(ch)) {
|
|
if (oldCh !== ch) updateChildren(elm, oldCh, ch, insertedVnodeQueue);
|
|
} else if (isDef(ch)) {
|
|
if (isDef(oldVnode.text)) nodeOps.setTextContent(elm, '');
|
|
addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
|
|
} else if (isDef(oldCh)) {
|
|
removeVnodes(elm, oldCh, 0, oldCh.length - 1);
|
|
} else if (isDef(oldVnode.text)) {
|
|
nodeOps.setTextContent(elm, '');
|
|
}
|
|
} else if (oldVnode.text !== vnode.text) {
|
|
nodeOps.setTextContent(elm, vnode.text);
|
|
}
|
|
if (isDef(hook) && isDef(i = hook.postpatch)) {
|
|
i(oldVnode, vnode);
|
|
}
|
|
}
|
|
|
|
function invokeInsertHook(queue) {
|
|
for (i = 0; i < queue.length; ++i) {
|
|
queue[i].data.hook.insert(queue[i]);
|
|
}
|
|
}
|
|
|
|
function hydrate(elm, vnode, insertedVnodeQueue) {
|
|
if (process.env.NODE_ENV !== 'production') {
|
|
if (!assertNodeMatch(elm, vnode)) {
|
|
return false;
|
|
}
|
|
}
|
|
vnode.elm = elm;
|
|
var tag = vnode.tag;
|
|
var data = vnode.data;
|
|
var children = vnode.children;
|
|
|
|
if (isDef(data)) {
|
|
if (isDef(i = data.hook) && isDef(i = i.init)) i(vnode);
|
|
if (isDef(i = vnode.child)) {
|
|
// child component. it should have hydrated its own tree.
|
|
invokeCreateHooks(vnode, insertedVnodeQueue);
|
|
return true;
|
|
}
|
|
}
|
|
if (isDef(tag)) {
|
|
if (isDef(children)) {
|
|
var childNodes = elm.childNodes;
|
|
for (var _i2 = 0; _i2 < children.length; _i2++) {
|
|
var success = hydrate(childNodes[_i2], children[_i2], insertedVnodeQueue);
|
|
if (!success) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
if (isDef(data)) {
|
|
invokeCreateHooks(vnode, insertedVnodeQueue);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
function assertNodeMatch(node, vnode) {
|
|
if (vnode.tag) {
|
|
if (vnode.tag.indexOf('vue-component') === 0) {
|
|
return true;
|
|
} else {
|
|
return vnode.tag === node.tagName.toLowerCase() && (vnode.children ? vnode.children.length === node.childNodes.length : node.childNodes.length === 0);
|
|
}
|
|
} else {
|
|
return renderString(vnode.text) === node.data;
|
|
}
|
|
}
|
|
|
|
return function patch(oldVnode, vnode) {
|
|
var elm, parent;
|
|
var insertedVnodeQueue = [];
|
|
|
|
if (!oldVnode) {
|
|
// empty mount, create new root element
|
|
createElm(vnode, insertedVnodeQueue);
|
|
} else {
|
|
if (sameVnode(oldVnode, vnode)) {
|
|
patchVnode(oldVnode, vnode, insertedVnodeQueue);
|
|
} else {
|
|
if (isUndef(oldVnode.tag)) {
|
|
// mounting to a real element
|
|
// check if this is server-rendered content and if we can perform
|
|
// a successful hydration.
|
|
if (oldVnode.hasAttribute('server-rendered')) {
|
|
oldVnode.removeAttribute('server-rendered');
|
|
if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
|
|
invokeInsertHook(insertedVnodeQueue);
|
|
return oldVnode;
|
|
} else if (process.env.NODE_ENV !== 'production') {
|
|
warn('The client-side rendered virtual DOM tree is not matching ' + 'server-rendered content. Bailing hydration and performing ' + 'full client-side render.');
|
|
}
|
|
}
|
|
// either not server-rendered, or hydration failed.
|
|
// create an empty node and replace it
|
|
oldVnode = emptyNodeAt(oldVnode);
|
|
}
|
|
elm = oldVnode.elm;
|
|
parent = nodeOps.parentNode(elm);
|
|
|
|
createElm(vnode, insertedVnodeQueue);
|
|
|
|
if (parent !== null) {
|
|
nodeOps.insertBefore(parent, vnode.elm, nodeOps.nextSibling(elm));
|
|
removeVnodes(parent, [oldVnode], 0, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
invokeInsertHook(insertedVnodeQueue);
|
|
return vnode.elm;
|
|
};
|
|
}
|
|
|
|
// attributes that should be using props for binding
|
|
var mustUseProp = makeMap('value,selected,checked,muted');
|
|
|
|
var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');
|
|
|
|
var isBooleanAttr = makeMap('allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' + 'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' + 'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' + 'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' + 'required,reversed,scoped,seamless,selected,sortable,translate,' + 'truespeed,typemustmatch,visible');
|
|
|
|
var xlinkNS = 'http://www.w3.org/1999/xlink';
|
|
var isXlink = function isXlink(name) {
|
|
return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink';
|
|
};
|
|
|
|
function genClassForVnode(vnode) {
|
|
var data = vnode.data;
|
|
// Important: check if this is a component container node
|
|
// or a child component root node
|
|
var i = void 0;
|
|
if ((i = vnode.child) && (i = i._vnode.data)) {
|
|
data = mergeClassData(i, data);
|
|
}
|
|
if ((i = vnode.parent) && (i = i.data)) {
|
|
data = mergeClassData(data, i);
|
|
}
|
|
return genClassFromData(data);
|
|
}
|
|
|
|
function mergeClassData(child, parent) {
|
|
return {
|
|
staticClass: concat(child.staticClass, parent.staticClass),
|
|
class: child.class ? extend(child.class, parent.class) : parent.class
|
|
};
|
|
}
|
|
|
|
function genClassFromData(data) {
|
|
var dynamicClass = data.class;
|
|
var staticClass = data.staticClass;
|
|
if (staticClass || dynamicClass) {
|
|
return concat(staticClass, stringifyClass(dynamicClass));
|
|
}
|
|
}
|
|
|
|
function concat(a, b) {
|
|
return a ? b ? a + ' ' + b : a : b || '';
|
|
}
|
|
|
|
function stringifyClass(value) {
|
|
if (!value) {
|
|
return '';
|
|
}
|
|
if (typeof value === 'string') {
|
|
return value;
|
|
}
|
|
if (isArray(value)) {
|
|
var res = '';
|
|
for (var i = 0, l = value.length; i < l; i++) {
|
|
if (value[i]) res += stringifyClass(value[i]) + ' ';
|
|
}
|
|
return res.slice(0, -1);
|
|
}
|
|
if (isObject(value)) {
|
|
var _res = '';
|
|
for (var key in value) {
|
|
if (value[key]) _res += key + ' ';
|
|
}
|
|
return _res.slice(0, -1);
|
|
}
|
|
}
|
|
|
|
var namespaceMap = {
|
|
svg: 'http://www.w3.org/2000/svg',
|
|
math: 'http://www.w3.org/1998/Math/MathML'
|
|
};
|
|
|
|
var isReservedTag = makeMap('html,base,head,link,meta,style,title,' + 'address,article,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' + 'div,dd,dl,dt,figcaption,figure,hr,li,main,ol,p,pre,ul,' + 'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' + 's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' + 'embed,object,param,source,canvas,script,noscript,del,ins,' + 'caption,col,colgroup,table,thead,tbody,td,th,tr,' + 'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' + 'output,progress,select,textarea,' + 'details,dialog,menu,menuitem,summary,' + 'content,element,shadow,template');
|
|
|
|
var isUnaryTag = makeMap('area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' + 'link,meta,param,source,track,wbr', true);
|
|
|
|
// Elements that you can, intentionally, leave open
|
|
// (and which close themselves)
|
|
var canBeLeftOpenTag = makeMap('colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source', true);
|
|
|
|
// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
|
|
// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
|
|
var isNonPhrasingTag = makeMap('address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' + 'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' + 'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' + 'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' + 'title,tr,track', true);
|
|
|
|
// this map covers namespace elements that can appear as template root nodes
|
|
var isSVG = makeMap('svg,g,defs,symbol,use,image,text,circle,ellipse,' + 'line,path,polygon,polyline,rect', true);
|
|
|
|
var unknownElementCache = Object.create(null);
|
|
function isUnknownElement(tag) {
|
|
if (!inBrowser) {
|
|
return true;
|
|
}
|
|
tag = tag.toLowerCase();
|
|
if (unknownElementCache[tag] != null) {
|
|
return unknownElementCache[tag];
|
|
}
|
|
var el = document.createElement(tag);
|
|
if (tag.indexOf('-') > -1) {
|
|
// http://stackoverflow.com/a/28210364/1070244
|
|
return unknownElementCache[tag] = el.constructor === window.HTMLUnknownElement || el.constructor === window.HTMLElement;
|
|
} else {
|
|
return unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()) &&
|
|
// Chrome returns unknown for several HTML5 elements.
|
|
// https://code.google.com/p/chromium/issues/detail?id=540526
|
|
!/^(data|time|rtc|rb)$/.test(tag);
|
|
}
|
|
}
|
|
|
|
var UA$1 = inBrowser && window.navigator.userAgent.toLowerCase();
|
|
var isIE9 = UA$1 && UA$1.indexOf('msie 9.0') > 0;
|
|
var isAndroid = UA$1 && UA$1.indexOf('android') > 0;
|
|
|
|
/**
|
|
* Query an element selector if it's not an element already.
|
|
*
|
|
* @param {String|Element} el
|
|
* @return {Element}
|
|
*/
|
|
|
|
function query(el) {
|
|
if (typeof el === 'string') {
|
|
var selector = el;
|
|
el = document.querySelector(el);
|
|
if (!el) {
|
|
process.env.NODE_ENV !== 'production' && warn('Cannot find element: ' + selector);
|
|
}
|
|
}
|
|
return el;
|
|
}
|
|
|
|
function createElement$1(tagName) {
|
|
return document.createElement(tagName);
|
|
}
|
|
|
|
function createElementNS(namespace, tagName) {
|
|
return document.createElementNS(namespaceMap[namespace], tagName);
|
|
}
|
|
|
|
function createTextNode(text) {
|
|
return document.createTextNode(text);
|
|
}
|
|
|
|
function insertBefore(parentNode, newNode, referenceNode) {
|
|
parentNode.insertBefore(newNode, referenceNode);
|
|
}
|
|
|
|
function removeChild(node, child) {
|
|
node.removeChild(child);
|
|
}
|
|
|
|
function appendChild(node, child) {
|
|
node.appendChild(child);
|
|
}
|
|
|
|
function parentNode(node) {
|
|
return node.parentElement;
|
|
}
|
|
|
|
function nextSibling(node) {
|
|
return node.nextSibling;
|
|
}
|
|
|
|
function tagName(node) {
|
|
return node.tagName;
|
|
}
|
|
|
|
function setTextContent(node, text) {
|
|
node.textContent = text;
|
|
}
|
|
|
|
var nodeOps = Object.freeze({
|
|
createElement: createElement$1,
|
|
createElementNS: createElementNS,
|
|
createTextNode: createTextNode,
|
|
insertBefore: insertBefore,
|
|
removeChild: removeChild,
|
|
appendChild: appendChild,
|
|
parentNode: parentNode,
|
|
nextSibling: nextSibling,
|
|
tagName: tagName,
|
|
setTextContent: setTextContent
|
|
});
|
|
|
|
if (isIE9) {
|
|
// http://www.matts411.com/post/internet-explorer-9-oninput/
|
|
document.addEventListener('selectionchange', function () {
|
|
var el = document.activeElement;
|
|
if (el && el.vmodel) {
|
|
trigger(el);
|
|
}
|
|
});
|
|
}
|
|
|
|
var model = {
|
|
bind: function bind(el) {
|
|
if (!isAndroid) {
|
|
el.addEventListener('compositionstart', onCompositionStart);
|
|
el.addEventListener('compositionend', onCompositionEnd);
|
|
}
|
|
if (isIE9) {
|
|
el.vmodel = true;
|
|
}
|
|
},
|
|
unbind: function unbind(el) {
|
|
if (!isAndroid) {
|
|
el.removeEventListener('compositionstart', onCompositionStart);
|
|
el.removeEventListener('compositionend', onCompositionEnd);
|
|
}
|
|
}
|
|
};
|
|
|
|
function onCompositionStart(e) {
|
|
e.target.composing = true;
|
|
}
|
|
|
|
function onCompositionEnd(e) {
|
|
e.target.composing = false;
|
|
trigger(e.target);
|
|
}
|
|
|
|
function trigger(el) {
|
|
var e = document.createEvent('HTMLEvents');
|
|
e.initEvent('input', true, true);
|
|
el.dispatchEvent(e);
|
|
}
|
|
|
|
var svgNS = namespaceMap.svg;
|
|
|
|
/**
|
|
* In IE9, setAttribute('class') will result in empty class
|
|
* if the element also has the :class attribute; However in
|
|
* PhantomJS, setting `className` does not work on SVG elements...
|
|
* So we have to do a conditional check here.
|
|
*
|
|
* @param {Element} el
|
|
* @param {String} cls
|
|
*/
|
|
|
|
function setClass(el, cls) {
|
|
/* istanbul ignore else */
|
|
if (!isIE9 || el.namespaceURI === svgNS) {
|
|
el.setAttribute('class', cls);
|
|
} else {
|
|
el.className = cls;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add class with compatibility for IE & SVG
|
|
*
|
|
* @param {Element} el
|
|
* @param {String} cls
|
|
*/
|
|
|
|
function addClass(el, cls) {
|
|
if (el.classList) {
|
|
if (cls.indexOf(' ') > -1) {
|
|
cls.split(/\s+/).forEach(function (c) {
|
|
return el.classList.add(c);
|
|
});
|
|
} else {
|
|
el.classList.add(cls);
|
|
}
|
|
} else {
|
|
var cur = ' ' + getClass(el) + ' ';
|
|
if (cur.indexOf(' ' + cls + ' ') < 0) {
|
|
setClass(el, (cur + cls).trim());
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Remove class with compatibility for IE & SVG
|
|
*
|
|
* @param {Element} el
|
|
* @param {String} cls
|
|
*/
|
|
|
|
function removeClass(el, cls) {
|
|
if (el.classList) {
|
|
if (cls.indexOf(' ') > -1) {
|
|
cls.split(/\s+/).forEach(function (c) {
|
|
return el.classList.remove(c);
|
|
});
|
|
} else {
|
|
el.classList.remove(cls);
|
|
}
|
|
} else {
|
|
var cur = ' ' + getClass(el) + ' ';
|
|
var tar = ' ' + cls + ' ';
|
|
while (cur.indexOf(tar) >= 0) {
|
|
cur = cur.replace(tar, ' ');
|
|
}
|
|
setClass(el, cur.trim());
|
|
}
|
|
if (!el.className) {
|
|
el.removeAttribute('class');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* For IE9 compat: when both class and :class are present
|
|
* getAttribute('class') returns wrong value... but className
|
|
* on SVG elements returns an object.
|
|
*
|
|
* @param {Element} el
|
|
* @return {String}
|
|
*/
|
|
|
|
function getClass(el) {
|
|
var classname = el.className;
|
|
if (typeof classname === 'object') {
|
|
classname = classname.baseVal || '';
|
|
}
|
|
return classname;
|
|
}
|
|
|
|
var TRANSITION = 'transition';
|
|
var ANIMATION = 'animation';
|
|
|
|
// Transition property/event sniffing
|
|
var transitionProp = void 0;
|
|
var transitionEndEvent = void 0;
|
|
var animationProp = void 0;
|
|
var animationEndEvent = void 0;
|
|
if (inBrowser && !isIE9) {
|
|
var isWebkitTrans = window.ontransitionend === undefined && window.onwebkittransitionend !== undefined;
|
|
var isWebkitAnim = window.onanimationend === undefined && window.onwebkitanimationend !== undefined;
|
|
transitionProp = isWebkitTrans ? 'WebkitTransition' : 'transition';
|
|
transitionEndEvent = isWebkitTrans ? 'webkitTransitionEnd' : 'transitionend';
|
|
animationProp = isWebkitAnim ? 'WebkitAnimation' : 'animation';
|
|
animationEndEvent = isWebkitAnim ? 'webkitAnimationEnd' : 'animationend';
|
|
}
|
|
|
|
var raf = inBrowser && window.requestAnimationFrame || setTimeout;
|
|
function nextFrame(fn) {
|
|
raf(function () {
|
|
raf(fn);
|
|
});
|
|
}
|
|
|
|
function enter(vnode) {
|
|
var el = vnode.elm;
|
|
// call leave callback now
|
|
if (el._leaveCb) {
|
|
el._leaveCb.cancelled = true;
|
|
el._leaveCb();
|
|
}
|
|
var data = vnode.data.transition;
|
|
if (!data) {
|
|
return;
|
|
}
|
|
if (!vnode.context.$root._mounted && !data.appear) {
|
|
return;
|
|
}
|
|
|
|
var _resolveTransition = resolveTransition(data.definition, vnode.context);
|
|
|
|
var enterClass = _resolveTransition.enterClass;
|
|
var enterActiveClass = _resolveTransition.enterActiveClass;
|
|
var beforeEnter = _resolveTransition.beforeEnter;
|
|
var enter = _resolveTransition.enter;
|
|
var afterEnter = _resolveTransition.afterEnter;
|
|
var enterCancelled = _resolveTransition.enterCancelled;
|
|
|
|
|
|
var userWantsControl = enter && enter.length > 1;
|
|
var cb = el._enterCb = once(function () {
|
|
if (enterActiveClass) {
|
|
removeTransitionClass(el, enterActiveClass);
|
|
}
|
|
if (cb.cancelled) {
|
|
enterCancelled && enterCancelled(el);
|
|
} else {
|
|
afterEnter && afterEnter(el);
|
|
}
|
|
el._enterCb = null;
|
|
});
|
|
|
|
beforeEnter && beforeEnter(el);
|
|
if (enterClass) {
|
|
addTransitionClass(el, enterClass);
|
|
nextFrame(function () {
|
|
removeTransitionClass(el, enterClass);
|
|
});
|
|
}
|
|
if (enterActiveClass) {
|
|
nextFrame(function () {
|
|
addTransitionClass(el, enterActiveClass);
|
|
if (!userWantsControl) {
|
|
whenTransitionEnds(el, cb);
|
|
}
|
|
});
|
|
}
|
|
enter && enter(el, cb);
|
|
if (!enterActiveClass && !userWantsControl) {
|
|
cb();
|
|
}
|
|
}
|
|
|
|
function leave(vnode, rm) {
|
|
var el = vnode.elm;
|
|
// call enter callback now
|
|
if (el._enterCb) {
|
|
el._enterCb.cancelled = true;
|
|
el._enterCb();
|
|
}
|
|
var data = vnode.data.transition;
|
|
if (!data) {
|
|
return rm();
|
|
}
|
|
|
|
var _resolveTransition2 = resolveTransition(data.definition, vnode.context);
|
|
|
|
var leaveClass = _resolveTransition2.leaveClass;
|
|
var leaveActiveClass = _resolveTransition2.leaveActiveClass;
|
|
var beforeLeave = _resolveTransition2.beforeLeave;
|
|
var leave = _resolveTransition2.leave;
|
|
var afterLeave = _resolveTransition2.afterLeave;
|
|
var leaveCancelled = _resolveTransition2.leaveCancelled;
|
|
|
|
|
|
var userWantsControl = leave && leave.length > 1;
|
|
var cb = el._leaveCb = once(function () {
|
|
if (leaveActiveClass) {
|
|
removeTransitionClass(el, leaveActiveClass);
|
|
}
|
|
if (cb.cancelled) {
|
|
leaveCancelled && leaveCancelled(el);
|
|
} else {
|
|
rm();
|
|
afterLeave && afterLeave(el);
|
|
}
|
|
el._leaveCb = null;
|
|
});
|
|
|
|
beforeLeave && beforeLeave(el);
|
|
if (leaveClass) {
|
|
addTransitionClass(el, leaveClass);
|
|
nextFrame(function () {
|
|
removeTransitionClass(el, leaveClass);
|
|
});
|
|
}
|
|
if (leaveActiveClass) {
|
|
nextFrame(function () {
|
|
addTransitionClass(el, leaveActiveClass);
|
|
if (!userWantsControl) {
|
|
whenTransitionEnds(el, cb);
|
|
}
|
|
});
|
|
}
|
|
leave && leave(el, cb);
|
|
if (!leaveActiveClass && !userWantsControl) {
|
|
cb();
|
|
}
|
|
}
|
|
|
|
function resolveTransition(id, context) {
|
|
var definition = id && typeof id === 'string' ? resolveAsset(context.$options, 'transitions', id) || id : id;
|
|
if (definition === true) definition = 'v';
|
|
return typeof definition === 'string' ? autoCssTransition(definition) : definition;
|
|
}
|
|
|
|
var autoCssTransition = cached(function (name) {
|
|
return {
|
|
enterClass: name + '-enter',
|
|
leaveClass: name + '-leave',
|
|
enterActiveClass: name + '-enter-active',
|
|
leaveActiveClass: name + '-leave-active'
|
|
};
|
|
});
|
|
|
|
function addTransitionClass(el, cls) {
|
|
(el._transitionClasses || (el._transitionClasses = [])).push(cls);
|
|
addClass(el, cls);
|
|
}
|
|
|
|
function removeTransitionClass(el, cls) {
|
|
remove(el._transitionClasses, cls);
|
|
removeClass(el, cls);
|
|
}
|
|
|
|
function whenTransitionEnds(el, cb) {
|
|
var _getTransitionInfo = getTransitionInfo(el);
|
|
|
|
var type = _getTransitionInfo.type;
|
|
var timeout = _getTransitionInfo.timeout;
|
|
var propCount = _getTransitionInfo.propCount;
|
|
|
|
if (!type) return cb();
|
|
var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
|
|
var ended = 0;
|
|
var end = function end() {
|
|
el.removeEventListener(event, onEnd);
|
|
cb();
|
|
};
|
|
var onEnd = function onEnd() {
|
|
if (++ended >= propCount) {
|
|
end();
|
|
}
|
|
};
|
|
setTimeout(function () {
|
|
if (ended < propCount) {
|
|
end();
|
|
}
|
|
}, timeout);
|
|
el.addEventListener(event, onEnd);
|
|
}
|
|
|
|
function getTransitionInfo(el) {
|
|
var styles = window.getComputedStyle(el);
|
|
// 1. determine the maximum duration (timeout)
|
|
var transitioneDelays = styles[transitionProp + 'Delay'].split(', ');
|
|
var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
|
|
var animationDelays = styles[animationProp + 'Delay'].split(', ');
|
|
var animationDurations = styles[animationProp + 'Duration'].split(', ');
|
|
var transitionTimeout = getTimeout(transitioneDelays, transitionDurations);
|
|
var animationTimeout = getTimeout(animationDelays, animationDurations);
|
|
var timeout = Math.max(transitionTimeout, animationTimeout);
|
|
var type = timeout > 0 ? transitionTimeout > animationTimeout ? TRANSITION : ANIMATION : null;
|
|
var propCount = type ? type === TRANSITION ? transitionDurations.length : animationDurations.length : 0;
|
|
return {
|
|
type: type,
|
|
timeout: timeout,
|
|
propCount: propCount
|
|
};
|
|
}
|
|
|
|
function getTimeout(delays, durations) {
|
|
return Math.max.apply(null, durations.map(function (d, i) {
|
|
return toMs(d) + toMs(delays[i]);
|
|
}));
|
|
}
|
|
|
|
function toMs(s) {
|
|
return Number(s.slice(0, -1)) * 1000;
|
|
}
|
|
|
|
function once(fn) {
|
|
var called = false;
|
|
return function () {
|
|
if (!called) {
|
|
called = true;
|
|
fn();
|
|
}
|
|
};
|
|
}
|
|
|
|
function shouldSkipTransition(vnode) {
|
|
return(
|
|
// if this is a component root node and the compoennt's
|
|
// parent container node also has transition, skip.
|
|
vnode.parent && vnode.parent.data.transition ||
|
|
// if the element has v-show, let the runtime directive
|
|
// call the hooks instead
|
|
vnode.data.show
|
|
);
|
|
}
|
|
|
|
var transition = !transitionEndEvent ? {} : {
|
|
create: function create(_, vnode) {
|
|
if (!shouldSkipTransition(vnode)) {
|
|
enter(vnode);
|
|
}
|
|
},
|
|
remove: function remove(vnode, rm) {
|
|
if (!shouldSkipTransition(vnode)) {
|
|
leave(vnode, rm);
|
|
} else {
|
|
rm();
|
|
}
|
|
}
|
|
};
|
|
|
|
var show = {
|
|
bind: function bind(el, value, _, vnode) {
|
|
var transition = getTransition(vnode);
|
|
if (value && transition && transition.appea && !isIE9) {
|
|
enter(vnode);
|
|
}
|
|
el.style.display = value ? '' : 'none';
|
|
},
|
|
update: function update(el, value, _, vnode) {
|
|
var transition = getTransition(vnode);
|
|
if (transition && !isIE9) {
|
|
if (value) {
|
|
enter(vnode);
|
|
el.style.display = '';
|
|
} else {
|
|
leave(vnode, function () {
|
|
el.style.display = 'none';
|
|
});
|
|
}
|
|
} else {
|
|
el.style.display = value ? '' : 'none';
|
|
}
|
|
}
|
|
};
|
|
|
|
function getTransition(vnode) {
|
|
var parent = vnode.parent;
|
|
return parent && parent.data.transition != null ? parent.data.transition : vnode.data.transition;
|
|
}
|
|
|
|
var platformDirectives = {
|
|
model: model,
|
|
show: show
|
|
};
|
|
|
|
var directives = {
|
|
create: function bindDirectives(oldVnode, vnode) {
|
|
applyDirectives(oldVnode, vnode, 'bind');
|
|
},
|
|
update: function updateDirectives(oldVnode, vnode) {
|
|
applyDirectives(oldVnode, vnode, 'update', true);
|
|
},
|
|
destroy: function unbindDirectives(vnode) {
|
|
applyDirectives(null, vnode, 'unbind');
|
|
}
|
|
};
|
|
|
|
function applyDirectives(oldVnode, vnode, hook, update) {
|
|
var dirs = vnode.data.directives;
|
|
if (dirs) {
|
|
for (var i = 0; i < dirs.length; i++) {
|
|
var dir = dirs[i];
|
|
var def = resolveAsset(vnode.context.$options, 'directives', dir.name, true);
|
|
var fn = def && def[hook];
|
|
if (fn) {
|
|
// only call update if value has changed
|
|
if (update) {
|
|
var oldValue = oldVnode.data.directives[i].value;
|
|
if (oldValue === dir.value) {
|
|
continue;
|
|
}
|
|
}
|
|
fn(vnode.elm, dir.value, dir.modifiers, vnode, oldVnode);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var baseModules = [directives];
|
|
|
|
function updateAttrs(oldVnode, vnode) {
|
|
if (!oldVnode.data.attrs && !vnode.data.attrs) {
|
|
return;
|
|
}
|
|
var key = void 0,
|
|
cur = void 0,
|
|
old = void 0;
|
|
var elm = vnode.elm;
|
|
var oldAttrs = oldVnode.data.attrs || {};
|
|
var attrs = vnode.data.attrs || {};
|
|
|
|
for (key in attrs) {
|
|
cur = attrs[key];
|
|
old = oldAttrs[key];
|
|
if (old !== cur) {
|
|
setAttr(elm, key, cur);
|
|
}
|
|
}
|
|
for (key in oldAttrs) {
|
|
if (attrs[key] == null) {
|
|
if (isXlink(key)) {
|
|
elm.removeAttributeNS(xlinkNS, key);
|
|
} else {
|
|
elm.removeAttribute(key);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function setAttr(el, key, value) {
|
|
if (isBooleanAttr(key)) {
|
|
if (value == null) {
|
|
el.removeAttribute(key);
|
|
} else {
|
|
el.setAttribute(key, key);
|
|
}
|
|
} else if (isEnumeratedAttr(key)) {
|
|
el.setAttribute(key, value == null ? 'false' : 'true');
|
|
} else if (isXlink(key)) {
|
|
el.setAttributeNS(xlinkNS, key, value);
|
|
} else {
|
|
el.setAttribute(key, value);
|
|
}
|
|
}
|
|
|
|
var attrs = {
|
|
create: function create(_, vnode) {
|
|
var attrs = vnode.data.staticAttrs;
|
|
if (attrs) {
|
|
for (var key in attrs) {
|
|
if (!vnode.elm) debugger;
|
|
setAttr(vnode.elm, key, attrs[key]);
|
|
}
|
|
}
|
|
updateAttrs(_, vnode);
|
|
},
|
|
update: updateAttrs
|
|
};
|
|
|
|
function updateClass(oldVnode, vnode) {
|
|
var el = vnode.elm;
|
|
var data = vnode.data;
|
|
if (!data.staticClass && !data.class) {
|
|
return;
|
|
}
|
|
|
|
var cls = genClassForVnode(vnode);
|
|
|
|
// handle transition classes
|
|
var transitionClass = el._transitionClasses;
|
|
if (transitionClass) {
|
|
cls = concat(cls, stringifyClass(transitionClass));
|
|
}
|
|
|
|
// set the class
|
|
if (cls !== el._prevClass) {
|
|
setClass(el, cls);
|
|
el._prevClass = cls;
|
|
}
|
|
}
|
|
|
|
var klass = {
|
|
create: updateClass,
|
|
update: updateClass
|
|
};
|
|
|
|
function updateDOMListeners(oldVnode, vnode) {
|
|
if (!oldVnode.data.on && !vnode.data.on) {
|
|
return;
|
|
}
|
|
var on = vnode.data.on || {};
|
|
var oldOn = oldVnode.data.on || {};
|
|
updateListeners(on, oldOn, function (event, handler, capture) {
|
|
vnode.elm.addEventListener(event, handler, capture);
|
|
});
|
|
}
|
|
|
|
var events = {
|
|
create: updateDOMListeners,
|
|
update: updateDOMListeners
|
|
};
|
|
|
|
function updateProps(oldVnode, vnode) {
|
|
if (!oldVnode.data.props && !vnode.data.props) {
|
|
return;
|
|
}
|
|
var key = void 0,
|
|
cur = void 0,
|
|
old = void 0;
|
|
var elm = vnode.elm;
|
|
var oldProps = oldVnode.data.props || {};
|
|
var props = vnode.data.props || {};
|
|
|
|
for (key in oldProps) {
|
|
if (props[key] == null) {
|
|
elm[key] = undefined;
|
|
}
|
|
}
|
|
for (key in props) {
|
|
cur = props[key];
|
|
old = oldProps[key];
|
|
if (old !== cur) {
|
|
if (key === 'value') {
|
|
// store value as _value as well since
|
|
// non-string values will be stringified
|
|
if (elm._value !== cur) {
|
|
elm.value = elm._value = cur;
|
|
}
|
|
} else {
|
|
elm[key] = cur;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var props = {
|
|
create: updateProps,
|
|
update: updateProps
|
|
};
|
|
|
|
var prefixes = ['Webkit', 'Moz', 'ms'];
|
|
var testEl = inBrowser && document.createElement('div');
|
|
|
|
var normalize = cached(function (prop) {
|
|
prop = camelize(prop);
|
|
if (prop !== 'filter' && prop in testEl.style) {
|
|
return prop;
|
|
}
|
|
var upper = prop.charAt(0).toUpperCase() + prop.slice(1);
|
|
for (var i = 0; i < prefixes.length; i++) {
|
|
var prefixed = prefixes[i] + upper;
|
|
if (prefixed in testEl.style) {
|
|
return prefixed;
|
|
}
|
|
}
|
|
});
|
|
|
|
function updateStyle(oldVnode, vnode) {
|
|
if (!oldVnode.data.style && !vnode.data.style) {
|
|
return;
|
|
}
|
|
var cur = void 0,
|
|
name = void 0;
|
|
var elm = vnode.elm;
|
|
var oldStyle = oldVnode.data.style || {};
|
|
var style = vnode.data.style || {};
|
|
|
|
// handle array syntax
|
|
if (isArray(style)) {
|
|
style = vnode.data.style = toObject(style);
|
|
}
|
|
|
|
for (name in oldStyle) {
|
|
if (!style[name]) {
|
|
elm.style[normalize(name)] = '';
|
|
}
|
|
}
|
|
for (name in style) {
|
|
cur = style[name];
|
|
if (cur !== oldStyle[name]) {
|
|
elm.style[normalize(name)] = cur;
|
|
}
|
|
}
|
|
}
|
|
|
|
function toObject(arr) {
|
|
var res = arr[0] || {};
|
|
for (var i = 1; i < arr.length; i++) {
|
|
if (arr[i]) {
|
|
extend(res, arr[i]);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
var style = {
|
|
create: updateStyle,
|
|
update: updateStyle
|
|
};
|
|
|
|
var platformModules = [attrs, klass, events, props, style, transition];
|
|
|
|
// install platform specific utils
|
|
Vue.config.isUnknownElement = isUnknownElement;
|
|
Vue.config.isReservedTag = isReservedTag;
|
|
|
|
// install platform runtime directives
|
|
Vue.options.directives = platformDirectives;
|
|
|
|
// install platform patch function
|
|
var modules = baseModules.concat(platformModules);
|
|
Vue.prototype.__patch__ = inBrowser ? createPatchFunction({ nodeOps: nodeOps, modules: modules }) : function noop() {};
|
|
|
|
// wrap mount
|
|
Vue.prototype.$mount = function (el) {
|
|
this.$el = el && query(el);
|
|
this._mount();
|
|
};
|
|
|
|
module.exports = Vue; |