App-EventStreamr
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};
fn.exp = text;
fn.parts = parts;
return fn;
}
}
/**
* @ngdoc method
* @name ng.$interpolate#startSymbol
* @methodOf ng.$interpolate
* @description
* Symbol to denote the start of expression in the interpolated string. Defaults to `{{`.
*
* Use {@link ng.$interpolateProvider#startSymbol $interpolateProvider#startSymbol} to change
* the symbol.
*
* @returns {string} start symbol.
*/
$interpolate.startSymbol = function() {
return startSymbol;
};
/**
* @ngdoc method
* @name ng.$interpolate#endSymbol
* @methodOf ng.$interpolate
* @description
* Symbol to denote the end of expression in the interpolated string. Defaults to `}}`.
*
* Use {@link ng.$interpolateProvider#endSymbol $interpolateProvider#endSymbol} to change
* the symbol.
*
* @returns {string} start symbol.
*/
$interpolate.endSymbol = function() {
return endSymbol;
};
return $interpolate;
}];
}
function $IntervalProvider() {
this.$get = ['$rootScope', '$window', '$q',
function($rootScope, $window, $q) {
var intervals = {};
/**
* @ngdoc function
* @name ng.$interval
*
* @description
* Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay`
* milliseconds.
*
* The return value of registering an interval function is a promise. This promise will be
* notified upon each tick of the interval, and will be resolved after `count` iterations, or
* run indefinitely if `count` is not defined. The value of the notification will be the
* number of iterations that have run.
* To cancel an interval, call `$interval.cancel(promise)`.
*
* In tests you can use {@link ngMock.$interval#methods_flush `$interval.flush(millis)`} to
* move forward by `millis` milliseconds and trigger any functions scheduled to run in that
* time.
*
* <div class="alert alert-warning">
* **Note**: Intervals created by this service must be explicitly destroyed when you are finished
* with them. In particular they are not automatically destroyed when a controller's scope or a
* directive's element are destroyed.
* You should take this into consideration and make sure to always cancel the interval at the
* appropriate moment. See the example below for more details on how and when to do this.
* </div>
*
* @param {function()} fn A function that should be called repeatedly.
* @param {number} delay Number of milliseconds between each function call.
* @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat
* indefinitely.
* @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise
* will invoke `fn` within the {@link ng.$rootScope.Scope#methods_$apply $apply} block.
* @returns {promise} A promise which will be notified on each iteration.
*
* @example
<doc:example module="time">
<doc:source>
<script>
function Ctrl2($scope,$interval) {
$scope.format = 'M/d/yy h:mm:ss a';
$scope.blood_1 = 100;
$scope.blood_2 = 120;
var stop;
$scope.fight = function() {
// Don't start a new fight if we are already fighting
if ( angular.isDefined(stop) ) return;
stop = $interval(function() {
if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {
$scope.blood_1 = $scope.blood_1 - 3;
$scope.blood_2 = $scope.blood_2 - 4;
} else {
$scope.stopFight();
}
}, 100);
};
$scope.stopFight = function() {
if (angular.isDefined(stop)) {
$interval.cancel(stop);
stop = undefined;
}
};
$scope.resetFight = function() {
$scope.blood_1 = 100;
$scope.blood_2 = 120;
}
$scope.$on('$destroy', function() {
// Make sure that the interval is destroyed too
share/status/app/lib/angular/angular.js view on Meta::CPAN
if (results.hasOwnProperty(key)) return;
deferred.reject(reason);
});
});
if (counter === 0) {
deferred.resolve(results);
}
return deferred.promise;
}
return {
defer: defer,
reject: reject,
when: when,
all: all
};
}
/**
* DESIGN NOTES
*
* The design decisions behind the scope are heavily favored for speed and memory consumption.
*
* The typical use of scope is to watch the expressions, which most of the time return the same
* value as last time so we optimize the operation.
*
* Closures construction is expensive in terms of speed as well as memory:
* - No closures, instead use prototypical inheritance for API
* - Internal state needs to be stored on scope directly, which means that private state is
* exposed as $$____ properties
*
* Loop operations are optimized by using while(count--) { ... }
* - this means that in order to keep the same order of execution as addition we have to add
* items to the array at the beginning (shift) instead of at the end (push)
*
* Child scopes are created and removed often
* - Using an array would be slow since inserts in middle are expensive so we use linked list
*
* There are few watches then a lot of observers. This is why you don't want the observer to be
* implemented in the same way as watch. Watch requires return of initialization function which
* are expensive to construct.
*/
/**
* @ngdoc object
* @name ng.$rootScopeProvider
* @description
*
* Provider for the $rootScope service.
*/
/**
* @ngdoc function
* @name ng.$rootScopeProvider#digestTtl
* @methodOf ng.$rootScopeProvider
* @description
*
* Sets the number of `$digest` iterations the scope should attempt to execute before giving up and
* assuming that the model is unstable.
*
* The current default is 10 iterations.
*
* In complex applications it's possible that the dependencies between `$watch`s will result in
* several digest iterations. However if an application needs more than the default 10 digest
* iterations for its model to stabilize then you should investigate what is causing the model to
* continuously change during the digest.
*
* Increasing the TTL could have performance implications, so you should not change it without
* proper justification.
*
* @param {number} limit The number of digest iterations.
*/
/**
* @ngdoc object
* @name ng.$rootScope
* @description
*
* Every application has a single root {@link ng.$rootScope.Scope scope}.
* All other scopes are descendant scopes of the root scope. Scopes provide separation
* between the model and the view, via a mechanism for watching the model for changes.
* They also provide an event emission/broadcast and subscription facility. See the
* {@link guide/scope developer guide on scopes}.
*/
function $RootScopeProvider(){
var TTL = 10;
var $rootScopeMinErr = minErr('$rootScope');
var lastDirtyWatch = null;
this.digestTtl = function(value) {
if (arguments.length) {
TTL = value;
}
return TTL;
};
this.$get = ['$injector', '$exceptionHandler', '$parse', '$browser',
function( $injector, $exceptionHandler, $parse, $browser) {
/**
* @ngdoc function
* @name ng.$rootScope.Scope
*
* @description
* A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the
* {@link AUTO.$injector $injector}. Child scopes are created using the
* {@link ng.$rootScope.Scope#methods_$new $new()} method. (Most scopes are created automatically when
* compiled HTML template is executed.)
*
* Here is a simple scope snippet to show how you can interact with the scope.
* <pre>
* <file src="./test/ng/rootScopeSpec.js" tag="docs1" />
* </pre>
*
* # Inheritance
* A scope can inherit from a parent scope, as in this example:
* <pre>
var parent = $rootScope;
var child = parent.$new();
parent.salutation = "Hello";
child.name = "World";
expect(child.salutation).toEqual('Hello');
child.salutation = "Welcome";
expect(child.salutation).toEqual('Welcome');
expect(parent.salutation).toEqual('Hello');
* </pre>
*
*
share/status/app/lib/angular/angular.js view on Meta::CPAN
oldValue[i] = newValue[i];
}
}
} else {
if (oldValue !== internalObject) {
// we are transitioning from something which was not an object into object.
oldValue = internalObject = {};
oldLength = 0;
changeDetected++;
}
// copy the items to oldValue and look for changes.
newLength = 0;
for (key in newValue) {
if (newValue.hasOwnProperty(key)) {
newLength++;
if (oldValue.hasOwnProperty(key)) {
if (oldValue[key] !== newValue[key]) {
changeDetected++;
oldValue[key] = newValue[key];
}
} else {
oldLength++;
oldValue[key] = newValue[key];
changeDetected++;
}
}
}
if (oldLength > newLength) {
// we used to have more keys, need to find them and destroy them.
changeDetected++;
for(key in oldValue) {
if (oldValue.hasOwnProperty(key) && !newValue.hasOwnProperty(key)) {
oldLength--;
delete oldValue[key];
}
}
}
}
return changeDetected;
}
function $watchCollectionAction() {
listener(newValue, oldValue, self);
}
return this.$watch($watchCollectionWatch, $watchCollectionAction);
},
/**
* @ngdoc function
* @name ng.$rootScope.Scope#$digest
* @methodOf ng.$rootScope.Scope
* @function
*
* @description
* Processes all of the {@link ng.$rootScope.Scope#methods_$watch watchers} of the current scope and
* its children. Because a {@link ng.$rootScope.Scope#methods_$watch watcher}'s listener can change
* the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#methods_$watch watchers}
* until no more listeners are firing. This means that it is possible to get into an infinite
* loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of
* iterations exceeds 10.
*
* Usually, you don't call `$digest()` directly in
* {@link ng.directive:ngController controllers} or in
* {@link ng.$compileProvider#methods_directive directives}.
* Instead, you should call {@link ng.$rootScope.Scope#methods_$apply $apply()} (typically from within
* a {@link ng.$compileProvider#methods_directive directives}), which will force a `$digest()`.
*
* If you want to be notified whenever `$digest()` is called,
* you can register a `watchExpression` function with
* {@link ng.$rootScope.Scope#methods_$watch $watch()} with no `listener`.
*
* In unit tests, you may need to call `$digest()` to simulate the scope life cycle.
*
* # Example
* <pre>
var scope = ...;
scope.name = 'misko';
scope.counter = 0;
expect(scope.counter).toEqual(0);
scope.$watch('name', function(newValue, oldValue) {
scope.counter = scope.counter + 1;
});
expect(scope.counter).toEqual(0);
scope.$digest();
// no variable change
expect(scope.counter).toEqual(0);
scope.name = 'adam';
scope.$digest();
expect(scope.counter).toEqual(1);
* </pre>
*
*/
$digest: function() {
var watch, value, last,
watchers,
asyncQueue = this.$$asyncQueue,
postDigestQueue = this.$$postDigestQueue,
length,
dirty, ttl = TTL,
next, current, target = this,
watchLog = [],
logIdx, logMsg, asyncTask;
beginPhase('$digest');
lastDirtyWatch = null;
do { // "while dirty" loop
dirty = false;
current = target;
while(asyncQueue.length) {
try {
asyncTask = asyncQueue.shift();
asyncTask.scope.$eval(asyncTask.expression);
} catch (e) {
clearPhase();
share/status/app/lib/angular/angular.js view on Meta::CPAN
traverseScopesLoop:
do { // "traverse the scopes" loop
if ((watchers = current.$$watchers)) {
// process our watches
length = watchers.length;
while (length--) {
try {
watch = watchers[length];
// Most common watches are on primitives, in which case we can short
// circuit it with === operator, only when === fails do we use .equals
if (watch) {
if ((value = watch.get(current)) !== (last = watch.last) &&
!(watch.eq
? equals(value, last)
: (typeof value == 'number' && typeof last == 'number'
&& isNaN(value) && isNaN(last)))) {
dirty = true;
lastDirtyWatch = watch;
watch.last = watch.eq ? copy(value) : value;
watch.fn(value, ((last === initWatchVal) ? value : last), current);
if (ttl < 5) {
logIdx = 4 - ttl;
if (!watchLog[logIdx]) watchLog[logIdx] = [];
logMsg = (isFunction(watch.exp))
? 'fn: ' + (watch.exp.name || watch.exp.toString())
: watch.exp;
logMsg += '; newVal: ' + toJson(value) + '; oldVal: ' + toJson(last);
watchLog[logIdx].push(logMsg);
}
} else if (watch === lastDirtyWatch) {
// If the most recently dirty watcher is now clean, short circuit since the remaining watchers
// have already been tested.
dirty = false;
break traverseScopesLoop;
}
}
} catch (e) {
clearPhase();
$exceptionHandler(e);
}
}
}
// Insanity Warning: scope depth-first traversal
// yes, this code is a bit crazy, but it works and we have tests to prove it!
// this piece should be kept in sync with the traversal in $broadcast
if (!(next = (current.$$childHead ||
(current !== target && current.$$nextSibling)))) {
while(current !== target && !(next = current.$$nextSibling)) {
current = current.$parent;
}
}
} while ((current = next));
// `break traverseScopesLoop;` takes us to here
if(dirty && !(ttl--)) {
clearPhase();
throw $rootScopeMinErr('infdig',
'{0} $digest() iterations reached. Aborting!\n' +
'Watchers fired in the last 5 iterations: {1}',
TTL, toJson(watchLog));
}
} while (dirty || asyncQueue.length);
clearPhase();
while(postDigestQueue.length) {
try {
postDigestQueue.shift()();
} catch (e) {
$exceptionHandler(e);
}
}
},
/**
* @ngdoc event
* @name ng.$rootScope.Scope#$destroy
* @eventOf ng.$rootScope.Scope
* @eventType broadcast on scope being destroyed
*
* @description
* Broadcasted when a scope and its children are being destroyed.
*
* Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to
* clean up DOM bindings before an element is removed from the DOM.
*/
/**
* @ngdoc function
* @name ng.$rootScope.Scope#$destroy
* @methodOf ng.$rootScope.Scope
* @function
*
* @description
* Removes the current scope (and all of its children) from the parent scope. Removal implies
* that calls to {@link ng.$rootScope.Scope#methods_$digest $digest()} will no longer
* propagate to the current scope and its children. Removal also implies that the current
* scope is eligible for garbage collection.
*
* The `$destroy()` is usually used by directives such as
* {@link ng.directive:ngRepeat ngRepeat} for managing the
* unrolling of the loop.
*
* Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope.
* Application code can register a `$destroy` event handler that will give it a chance to
* perform any necessary cleanup.
*
* Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to
* clean up DOM bindings before an element is removed from the DOM.
*/
$destroy: function() {
// we can't destroy the root scope or a scope that has been already destroyed
if (this.$$destroyed) return;
var parent = this.$parent;
this.$broadcast('$destroy');
this.$$destroyed = true;
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