angular2
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Angular 2 - a web framework for modern web apps
757 lines (756 loc) • 33.7 kB
JavaScript
import { isPresent, isBlank } from 'angular2/src/facade/lang';
import { BaseException } from 'angular2/src/facade/exceptions';
import { ListWrapper, StringMapWrapper } from 'angular2/src/facade/collection';
import { Injector, Key, Dependency, Provider, NoProviderError } from 'angular2/src/core/di';
import { mergeResolvedProviders } from 'angular2/src/core/di/provider';
import { UNDEFINED, ProtoInjector, Visibility, InjectorInlineStrategy, ProviderWithVisibility } from 'angular2/src/core/di/injector';
import { resolveProvider, ResolvedFactory, ResolvedProvider_ } from 'angular2/src/core/di/provider';
import { AttributeMetadata, QueryMetadata } from '../metadata/di';
import { ViewType } from './view_type';
import { ElementRef_ } from './element_ref';
import { ViewContainerRef } from './view_container_ref';
import { ElementRef } from './element_ref';
import { Renderer } from 'angular2/src/core/render/api';
import { TemplateRef, TemplateRef_ } from './template_ref';
import { DirectiveMetadata, ComponentMetadata } from '../metadata/directives';
import { ChangeDetectorRef } from 'angular2/src/core/change_detection/change_detection';
import { QueryList } from './query_list';
import { reflector } from 'angular2/src/core/reflection/reflection';
import { PipeProvider } from 'angular2/src/core/pipes/pipe_provider';
import { ViewContainerRef_ } from "./view_container_ref";
var _staticKeys;
export class StaticKeys {
constructor() {
this.templateRefId = Key.get(TemplateRef).id;
this.viewContainerId = Key.get(ViewContainerRef).id;
this.changeDetectorRefId = Key.get(ChangeDetectorRef).id;
this.elementRefId = Key.get(ElementRef).id;
this.rendererId = Key.get(Renderer).id;
}
static instance() {
if (isBlank(_staticKeys))
_staticKeys = new StaticKeys();
return _staticKeys;
}
}
export class DirectiveDependency extends Dependency {
constructor(key, optional, lowerBoundVisibility, upperBoundVisibility, properties, attributeName, queryDecorator) {
super(key, optional, lowerBoundVisibility, upperBoundVisibility, properties);
this.attributeName = attributeName;
this.queryDecorator = queryDecorator;
this._verify();
}
/** @internal */
_verify() {
var count = 0;
if (isPresent(this.queryDecorator))
count++;
if (isPresent(this.attributeName))
count++;
if (count > 1)
throw new BaseException('A directive injectable can contain only one of the following @Attribute or @Query.');
}
static createFrom(d) {
return new DirectiveDependency(d.key, d.optional, d.lowerBoundVisibility, d.upperBoundVisibility, d.properties, DirectiveDependency._attributeName(d.properties), DirectiveDependency._query(d.properties));
}
/** @internal */
static _attributeName(properties) {
var p = properties.find(p => p instanceof AttributeMetadata);
return isPresent(p) ? p.attributeName : null;
}
/** @internal */
static _query(properties) {
return properties.find(p => p instanceof QueryMetadata);
}
}
export class DirectiveProvider extends ResolvedProvider_ {
constructor(key, factory, deps, isComponent, providers, viewProviders, queries) {
super(key, [new ResolvedFactory(factory, deps)], false);
this.isComponent = isComponent;
this.providers = providers;
this.viewProviders = viewProviders;
this.queries = queries;
}
get displayName() { return this.key.displayName; }
static createFromType(type, meta) {
var provider = new Provider(type, { useClass: type });
if (isBlank(meta)) {
meta = new DirectiveMetadata();
}
var rb = resolveProvider(provider);
var rf = rb.resolvedFactories[0];
var deps = rf.dependencies.map(DirectiveDependency.createFrom);
var isComponent = meta instanceof ComponentMetadata;
var resolvedProviders = isPresent(meta.providers) ? Injector.resolve(meta.providers) : null;
var resolvedViewProviders = meta instanceof ComponentMetadata && isPresent(meta.viewProviders) ?
Injector.resolve(meta.viewProviders) :
null;
var queries = [];
if (isPresent(meta.queries)) {
StringMapWrapper.forEach(meta.queries, (meta, fieldName) => {
var setter = reflector.setter(fieldName);
queries.push(new QueryMetadataWithSetter(setter, meta));
});
}
// queries passed into the constructor.
// TODO: remove this after constructor queries are no longer supported
deps.forEach(d => {
if (isPresent(d.queryDecorator)) {
queries.push(new QueryMetadataWithSetter(null, d.queryDecorator));
}
});
return new DirectiveProvider(rb.key, rf.factory, deps, isComponent, resolvedProviders, resolvedViewProviders, queries);
}
}
export class QueryMetadataWithSetter {
constructor(setter, metadata) {
this.setter = setter;
this.metadata = metadata;
}
}
function setProvidersVisibility(providers, visibility, result) {
for (var i = 0; i < providers.length; i++) {
result.set(providers[i].key.id, visibility);
}
}
export class AppProtoElement {
constructor(firstProviderIsComponent, index, attributes, pwvs, protoQueryRefs, directiveVariableBindings) {
this.firstProviderIsComponent = firstProviderIsComponent;
this.index = index;
this.attributes = attributes;
this.protoQueryRefs = protoQueryRefs;
this.directiveVariableBindings = directiveVariableBindings;
var length = pwvs.length;
if (length > 0) {
this.protoInjector = new ProtoInjector(pwvs);
}
else {
this.protoInjector = null;
this.protoQueryRefs = [];
}
}
static create(metadataCache, index, attributes, directiveTypes, directiveVariableBindings) {
var componentDirProvider = null;
var mergedProvidersMap = new Map();
var providerVisibilityMap = new Map();
var providers = ListWrapper.createGrowableSize(directiveTypes.length);
var protoQueryRefs = [];
for (var i = 0; i < directiveTypes.length; i++) {
var dirProvider = metadataCache.getResolvedDirectiveMetadata(directiveTypes[i]);
providers[i] = new ProviderWithVisibility(dirProvider, dirProvider.isComponent ? Visibility.PublicAndPrivate : Visibility.Public);
if (dirProvider.isComponent) {
componentDirProvider = dirProvider;
}
else {
if (isPresent(dirProvider.providers)) {
mergeResolvedProviders(dirProvider.providers, mergedProvidersMap);
setProvidersVisibility(dirProvider.providers, Visibility.Public, providerVisibilityMap);
}
}
if (isPresent(dirProvider.viewProviders)) {
mergeResolvedProviders(dirProvider.viewProviders, mergedProvidersMap);
setProvidersVisibility(dirProvider.viewProviders, Visibility.Private, providerVisibilityMap);
}
for (var queryIdx = 0; queryIdx < dirProvider.queries.length; queryIdx++) {
var q = dirProvider.queries[queryIdx];
protoQueryRefs.push(new ProtoQueryRef(i, q.setter, q.metadata));
}
}
if (isPresent(componentDirProvider) && isPresent(componentDirProvider.providers)) {
// directive providers need to be prioritized over component providers
mergeResolvedProviders(componentDirProvider.providers, mergedProvidersMap);
setProvidersVisibility(componentDirProvider.providers, Visibility.Public, providerVisibilityMap);
}
mergedProvidersMap.forEach((provider, _) => {
providers.push(new ProviderWithVisibility(provider, providerVisibilityMap.get(provider.key.id)));
});
return new AppProtoElement(isPresent(componentDirProvider), index, attributes, providers, protoQueryRefs, directiveVariableBindings);
}
getProviderAtIndex(index) { return this.protoInjector.getProviderAtIndex(index); }
}
class _Context {
constructor(element, componentElement, injector) {
this.element = element;
this.componentElement = componentElement;
this.injector = injector;
}
}
export class InjectorWithHostBoundary {
constructor(injector, hostInjectorBoundary) {
this.injector = injector;
this.hostInjectorBoundary = hostInjectorBoundary;
}
}
export class AppElement {
constructor(proto, parentView, parent, nativeElement, embeddedViewFactory) {
this.proto = proto;
this.parentView = parentView;
this.parent = parent;
this.nativeElement = nativeElement;
this.embeddedViewFactory = embeddedViewFactory;
this.nestedViews = null;
this.componentView = null;
this.ref = new ElementRef_(this);
var parentInjector = isPresent(parent) ? parent._injector : parentView.parentInjector;
if (isPresent(this.proto.protoInjector)) {
var isBoundary;
if (isPresent(parent) && isPresent(parent.proto.protoInjector)) {
isBoundary = false;
}
else {
isBoundary = parentView.hostInjectorBoundary;
}
this._queryStrategy = this._buildQueryStrategy();
this._injector = new Injector(this.proto.protoInjector, parentInjector, isBoundary, this, () => this._debugContext());
// we couple ourselves to the injector strategy to avoid polymorphic calls
var injectorStrategy = this._injector.internalStrategy;
this._strategy = injectorStrategy instanceof InjectorInlineStrategy ?
new ElementDirectiveInlineStrategy(injectorStrategy, this) :
new ElementDirectiveDynamicStrategy(injectorStrategy, this);
this._strategy.init();
}
else {
this._queryStrategy = null;
this._injector = parentInjector;
this._strategy = null;
}
}
static getViewParentInjector(parentViewType, containerAppElement, imperativelyCreatedProviders, rootInjector) {
var parentInjector;
var hostInjectorBoundary;
switch (parentViewType) {
case ViewType.COMPONENT:
parentInjector = containerAppElement._injector;
hostInjectorBoundary = true;
break;
case ViewType.EMBEDDED:
parentInjector = isPresent(containerAppElement.proto.protoInjector) ?
containerAppElement._injector.parent :
containerAppElement._injector;
hostInjectorBoundary = containerAppElement._injector.hostBoundary;
break;
case ViewType.HOST:
if (isPresent(containerAppElement)) {
// host view is attached to a container
parentInjector = isPresent(containerAppElement.proto.protoInjector) ?
containerAppElement._injector.parent :
containerAppElement._injector;
if (isPresent(imperativelyCreatedProviders)) {
var imperativeProvidersWithVisibility = imperativelyCreatedProviders.map(p => new ProviderWithVisibility(p, Visibility.Public));
// The imperative injector is similar to having an element between
// the dynamic-loaded component and its parent => no boundary between
// the component and imperativelyCreatedInjector.
parentInjector = new Injector(new ProtoInjector(imperativeProvidersWithVisibility), parentInjector, true, null, null);
hostInjectorBoundary = false;
}
else {
hostInjectorBoundary = containerAppElement._injector.hostBoundary;
}
}
else {
// bootstrap
parentInjector = rootInjector;
hostInjectorBoundary = true;
}
break;
}
return new InjectorWithHostBoundary(parentInjector, hostInjectorBoundary);
}
attachComponentView(componentView) { this.componentView = componentView; }
_debugContext() {
var c = this.parentView.getDebugContext(this, null, null);
return isPresent(c) ? new _Context(c.element, c.componentElement, c.injector) : null;
}
hasVariableBinding(name) {
var vb = this.proto.directiveVariableBindings;
return isPresent(vb) && StringMapWrapper.contains(vb, name);
}
getVariableBinding(name) {
var index = this.proto.directiveVariableBindings[name];
return isPresent(index) ? this.getDirectiveAtIndex(index) : this.getElementRef();
}
get(token) { return this._injector.get(token); }
hasDirective(type) { return isPresent(this._injector.getOptional(type)); }
getComponent() { return isPresent(this._strategy) ? this._strategy.getComponent() : null; }
getInjector() { return this._injector; }
getElementRef() { return this.ref; }
getViewContainerRef() { return new ViewContainerRef_(this); }
getTemplateRef() {
if (isPresent(this.embeddedViewFactory)) {
return new TemplateRef_(this.ref);
}
return null;
}
getDependency(injector, provider, dep) {
if (provider instanceof DirectiveProvider) {
var dirDep = dep;
if (isPresent(dirDep.attributeName))
return this._buildAttribute(dirDep);
if (isPresent(dirDep.queryDecorator))
return this._queryStrategy.findQuery(dirDep.queryDecorator).list;
if (dirDep.key.id === StaticKeys.instance().changeDetectorRefId) {
// We provide the component's view change detector to components and
// the surrounding component's change detector to directives.
if (this.proto.firstProviderIsComponent) {
// Note: The component view is not yet created when
// this method is called!
return new _ComponentViewChangeDetectorRef(this);
}
else {
return this.parentView.changeDetector.ref;
}
}
if (dirDep.key.id === StaticKeys.instance().elementRefId) {
return this.getElementRef();
}
if (dirDep.key.id === StaticKeys.instance().viewContainerId) {
return this.getViewContainerRef();
}
if (dirDep.key.id === StaticKeys.instance().templateRefId) {
var tr = this.getTemplateRef();
if (isBlank(tr) && !dirDep.optional) {
throw new NoProviderError(null, dirDep.key);
}
return tr;
}
if (dirDep.key.id === StaticKeys.instance().rendererId) {
return this.parentView.renderer;
}
}
else if (provider instanceof PipeProvider) {
if (dep.key.id === StaticKeys.instance().changeDetectorRefId) {
// We provide the component's view change detector to components and
// the surrounding component's change detector to directives.
if (this.proto.firstProviderIsComponent) {
// Note: The component view is not yet created when
// this method is called!
return new _ComponentViewChangeDetectorRef(this);
}
else {
return this.parentView.changeDetector;
}
}
}
return UNDEFINED;
}
_buildAttribute(dep) {
var attributes = this.proto.attributes;
if (isPresent(attributes) && StringMapWrapper.contains(attributes, dep.attributeName)) {
return attributes[dep.attributeName];
}
else {
return null;
}
}
addDirectivesMatchingQuery(query, list) {
var templateRef = this.getTemplateRef();
if (query.selector === TemplateRef && isPresent(templateRef)) {
list.push(templateRef);
}
if (this._strategy != null) {
this._strategy.addDirectivesMatchingQuery(query, list);
}
}
_buildQueryStrategy() {
if (this.proto.protoQueryRefs.length === 0) {
return _emptyQueryStrategy;
}
else if (this.proto.protoQueryRefs.length <=
InlineQueryStrategy.NUMBER_OF_SUPPORTED_QUERIES) {
return new InlineQueryStrategy(this);
}
else {
return new DynamicQueryStrategy(this);
}
}
getDirectiveAtIndex(index) { return this._injector.getAt(index); }
ngAfterViewChecked() {
if (isPresent(this._queryStrategy))
this._queryStrategy.updateViewQueries();
}
ngAfterContentChecked() {
if (isPresent(this._queryStrategy))
this._queryStrategy.updateContentQueries();
}
traverseAndSetQueriesAsDirty() {
var inj = this;
while (isPresent(inj)) {
inj._setQueriesAsDirty();
if (isBlank(inj.parent) && inj.parentView.proto.type === ViewType.EMBEDDED) {
inj = inj.parentView.containerAppElement;
}
else {
inj = inj.parent;
}
}
}
_setQueriesAsDirty() {
if (isPresent(this._queryStrategy)) {
this._queryStrategy.setContentQueriesAsDirty();
}
if (this.parentView.proto.type === ViewType.COMPONENT) {
this.parentView.containerAppElement._queryStrategy.setViewQueriesAsDirty();
}
}
}
class _EmptyQueryStrategy {
setContentQueriesAsDirty() { }
setViewQueriesAsDirty() { }
updateContentQueries() { }
updateViewQueries() { }
findQuery(query) {
throw new BaseException(`Cannot find query for directive ${query}.`);
}
}
var _emptyQueryStrategy = new _EmptyQueryStrategy();
class InlineQueryStrategy {
constructor(ei) {
var protoRefs = ei.proto.protoQueryRefs;
if (protoRefs.length > 0)
this.query0 = new QueryRef(protoRefs[0], ei);
if (protoRefs.length > 1)
this.query1 = new QueryRef(protoRefs[1], ei);
if (protoRefs.length > 2)
this.query2 = new QueryRef(protoRefs[2], ei);
}
setContentQueriesAsDirty() {
if (isPresent(this.query0) && !this.query0.isViewQuery)
this.query0.dirty = true;
if (isPresent(this.query1) && !this.query1.isViewQuery)
this.query1.dirty = true;
if (isPresent(this.query2) && !this.query2.isViewQuery)
this.query2.dirty = true;
}
setViewQueriesAsDirty() {
if (isPresent(this.query0) && this.query0.isViewQuery)
this.query0.dirty = true;
if (isPresent(this.query1) && this.query1.isViewQuery)
this.query1.dirty = true;
if (isPresent(this.query2) && this.query2.isViewQuery)
this.query2.dirty = true;
}
updateContentQueries() {
if (isPresent(this.query0) && !this.query0.isViewQuery) {
this.query0.update();
}
if (isPresent(this.query1) && !this.query1.isViewQuery) {
this.query1.update();
}
if (isPresent(this.query2) && !this.query2.isViewQuery) {
this.query2.update();
}
}
updateViewQueries() {
if (isPresent(this.query0) && this.query0.isViewQuery) {
this.query0.update();
}
if (isPresent(this.query1) && this.query1.isViewQuery) {
this.query1.update();
}
if (isPresent(this.query2) && this.query2.isViewQuery) {
this.query2.update();
}
}
findQuery(query) {
if (isPresent(this.query0) && this.query0.protoQueryRef.query === query) {
return this.query0;
}
if (isPresent(this.query1) && this.query1.protoQueryRef.query === query) {
return this.query1;
}
if (isPresent(this.query2) && this.query2.protoQueryRef.query === query) {
return this.query2;
}
throw new BaseException(`Cannot find query for directive ${query}.`);
}
}
InlineQueryStrategy.NUMBER_OF_SUPPORTED_QUERIES = 3;
class DynamicQueryStrategy {
constructor(ei) {
this.queries = ei.proto.protoQueryRefs.map(p => new QueryRef(p, ei));
}
setContentQueriesAsDirty() {
for (var i = 0; i < this.queries.length; ++i) {
var q = this.queries[i];
if (!q.isViewQuery)
q.dirty = true;
}
}
setViewQueriesAsDirty() {
for (var i = 0; i < this.queries.length; ++i) {
var q = this.queries[i];
if (q.isViewQuery)
q.dirty = true;
}
}
updateContentQueries() {
for (var i = 0; i < this.queries.length; ++i) {
var q = this.queries[i];
if (!q.isViewQuery) {
q.update();
}
}
}
updateViewQueries() {
for (var i = 0; i < this.queries.length; ++i) {
var q = this.queries[i];
if (q.isViewQuery) {
q.update();
}
}
}
findQuery(query) {
for (var i = 0; i < this.queries.length; ++i) {
var q = this.queries[i];
if (q.protoQueryRef.query === query) {
return q;
}
}
throw new BaseException(`Cannot find query for directive ${query}.`);
}
}
/**
* Strategy used by the `ElementInjector` when the number of providers is 10 or less.
* In such a case, inlining fields is beneficial for performances.
*/
class ElementDirectiveInlineStrategy {
constructor(injectorStrategy, _ei) {
this.injectorStrategy = injectorStrategy;
this._ei = _ei;
}
init() {
var i = this.injectorStrategy;
var p = i.protoStrategy;
i.resetConstructionCounter();
if (p.provider0 instanceof DirectiveProvider && isPresent(p.keyId0) && i.obj0 === UNDEFINED)
i.obj0 = i.instantiateProvider(p.provider0, p.visibility0);
if (p.provider1 instanceof DirectiveProvider && isPresent(p.keyId1) && i.obj1 === UNDEFINED)
i.obj1 = i.instantiateProvider(p.provider1, p.visibility1);
if (p.provider2 instanceof DirectiveProvider && isPresent(p.keyId2) && i.obj2 === UNDEFINED)
i.obj2 = i.instantiateProvider(p.provider2, p.visibility2);
if (p.provider3 instanceof DirectiveProvider && isPresent(p.keyId3) && i.obj3 === UNDEFINED)
i.obj3 = i.instantiateProvider(p.provider3, p.visibility3);
if (p.provider4 instanceof DirectiveProvider && isPresent(p.keyId4) && i.obj4 === UNDEFINED)
i.obj4 = i.instantiateProvider(p.provider4, p.visibility4);
if (p.provider5 instanceof DirectiveProvider && isPresent(p.keyId5) && i.obj5 === UNDEFINED)
i.obj5 = i.instantiateProvider(p.provider5, p.visibility5);
if (p.provider6 instanceof DirectiveProvider && isPresent(p.keyId6) && i.obj6 === UNDEFINED)
i.obj6 = i.instantiateProvider(p.provider6, p.visibility6);
if (p.provider7 instanceof DirectiveProvider && isPresent(p.keyId7) && i.obj7 === UNDEFINED)
i.obj7 = i.instantiateProvider(p.provider7, p.visibility7);
if (p.provider8 instanceof DirectiveProvider && isPresent(p.keyId8) && i.obj8 === UNDEFINED)
i.obj8 = i.instantiateProvider(p.provider8, p.visibility8);
if (p.provider9 instanceof DirectiveProvider && isPresent(p.keyId9) && i.obj9 === UNDEFINED)
i.obj9 = i.instantiateProvider(p.provider9, p.visibility9);
}
getComponent() { return this.injectorStrategy.obj0; }
isComponentKey(key) {
return this._ei.proto.firstProviderIsComponent && isPresent(key) &&
key.id === this.injectorStrategy.protoStrategy.keyId0;
}
addDirectivesMatchingQuery(query, list) {
var i = this.injectorStrategy;
var p = i.protoStrategy;
if (isPresent(p.provider0) && p.provider0.key.token === query.selector) {
if (i.obj0 === UNDEFINED)
i.obj0 = i.instantiateProvider(p.provider0, p.visibility0);
list.push(i.obj0);
}
if (isPresent(p.provider1) && p.provider1.key.token === query.selector) {
if (i.obj1 === UNDEFINED)
i.obj1 = i.instantiateProvider(p.provider1, p.visibility1);
list.push(i.obj1);
}
if (isPresent(p.provider2) && p.provider2.key.token === query.selector) {
if (i.obj2 === UNDEFINED)
i.obj2 = i.instantiateProvider(p.provider2, p.visibility2);
list.push(i.obj2);
}
if (isPresent(p.provider3) && p.provider3.key.token === query.selector) {
if (i.obj3 === UNDEFINED)
i.obj3 = i.instantiateProvider(p.provider3, p.visibility3);
list.push(i.obj3);
}
if (isPresent(p.provider4) && p.provider4.key.token === query.selector) {
if (i.obj4 === UNDEFINED)
i.obj4 = i.instantiateProvider(p.provider4, p.visibility4);
list.push(i.obj4);
}
if (isPresent(p.provider5) && p.provider5.key.token === query.selector) {
if (i.obj5 === UNDEFINED)
i.obj5 = i.instantiateProvider(p.provider5, p.visibility5);
list.push(i.obj5);
}
if (isPresent(p.provider6) && p.provider6.key.token === query.selector) {
if (i.obj6 === UNDEFINED)
i.obj6 = i.instantiateProvider(p.provider6, p.visibility6);
list.push(i.obj6);
}
if (isPresent(p.provider7) && p.provider7.key.token === query.selector) {
if (i.obj7 === UNDEFINED)
i.obj7 = i.instantiateProvider(p.provider7, p.visibility7);
list.push(i.obj7);
}
if (isPresent(p.provider8) && p.provider8.key.token === query.selector) {
if (i.obj8 === UNDEFINED)
i.obj8 = i.instantiateProvider(p.provider8, p.visibility8);
list.push(i.obj8);
}
if (isPresent(p.provider9) && p.provider9.key.token === query.selector) {
if (i.obj9 === UNDEFINED)
i.obj9 = i.instantiateProvider(p.provider9, p.visibility9);
list.push(i.obj9);
}
}
}
/**
* Strategy used by the `ElementInjector` when the number of bindings is 11 or more.
* In such a case, there are too many fields to inline (see ElementInjectorInlineStrategy).
*/
class ElementDirectiveDynamicStrategy {
constructor(injectorStrategy, _ei) {
this.injectorStrategy = injectorStrategy;
this._ei = _ei;
}
init() {
var inj = this.injectorStrategy;
var p = inj.protoStrategy;
inj.resetConstructionCounter();
for (var i = 0; i < p.keyIds.length; i++) {
if (p.providers[i] instanceof DirectiveProvider && isPresent(p.keyIds[i]) &&
inj.objs[i] === UNDEFINED) {
inj.objs[i] = inj.instantiateProvider(p.providers[i], p.visibilities[i]);
}
}
}
getComponent() { return this.injectorStrategy.objs[0]; }
isComponentKey(key) {
var p = this.injectorStrategy.protoStrategy;
return this._ei.proto.firstProviderIsComponent && isPresent(key) && key.id === p.keyIds[0];
}
addDirectivesMatchingQuery(query, list) {
var ist = this.injectorStrategy;
var p = ist.protoStrategy;
for (var i = 0; i < p.providers.length; i++) {
if (p.providers[i].key.token === query.selector) {
if (ist.objs[i] === UNDEFINED) {
ist.objs[i] = ist.instantiateProvider(p.providers[i], p.visibilities[i]);
}
list.push(ist.objs[i]);
}
}
}
}
export class ProtoQueryRef {
constructor(dirIndex, setter, query) {
this.dirIndex = dirIndex;
this.setter = setter;
this.query = query;
}
get usesPropertySyntax() { return isPresent(this.setter); }
}
export class QueryRef {
constructor(protoQueryRef, originator) {
this.protoQueryRef = protoQueryRef;
this.originator = originator;
this.list = new QueryList();
this.dirty = true;
}
get isViewQuery() { return this.protoQueryRef.query.isViewQuery; }
update() {
if (!this.dirty)
return;
this._update();
this.dirty = false;
// TODO delete the check once only field queries are supported
if (this.protoQueryRef.usesPropertySyntax) {
var dir = this.originator.getDirectiveAtIndex(this.protoQueryRef.dirIndex);
if (this.protoQueryRef.query.first) {
this.protoQueryRef.setter(dir, this.list.length > 0 ? this.list.first : null);
}
else {
this.protoQueryRef.setter(dir, this.list);
}
}
this.list.notifyOnChanges();
}
_update() {
var aggregator = [];
if (this.protoQueryRef.query.isViewQuery) {
// intentionally skipping originator for view queries.
var nestedView = this.originator.componentView;
if (isPresent(nestedView))
this._visitView(nestedView, aggregator);
}
else {
this._visit(this.originator, aggregator);
}
this.list.reset(aggregator);
}
;
_visit(inj, aggregator) {
var view = inj.parentView;
var startIdx = inj.proto.index;
for (var i = startIdx; i < view.appElements.length; i++) {
var curInj = view.appElements[i];
// The first injector after inj, that is outside the subtree rooted at
// inj has to have a null parent or a parent that is an ancestor of inj.
if (i > startIdx && (isBlank(curInj.parent) || curInj.parent.proto.index < startIdx)) {
break;
}
if (!this.protoQueryRef.query.descendants &&
!(curInj.parent == this.originator || curInj == this.originator))
continue;
// We visit the view container(VC) views right after the injector that contains
// the VC. Theoretically, that might not be the right order if there are
// child injectors of said injector. Not clear whether if such case can
// even be constructed with the current apis.
this._visitInjector(curInj, aggregator);
this._visitViewContainerViews(curInj.nestedViews, aggregator);
}
}
_visitInjector(inj, aggregator) {
if (this.protoQueryRef.query.isVarBindingQuery) {
this._aggregateVariableBinding(inj, aggregator);
}
else {
this._aggregateDirective(inj, aggregator);
}
}
_visitViewContainerViews(views, aggregator) {
if (isPresent(views)) {
for (var j = 0; j < views.length; j++) {
this._visitView(views[j], aggregator);
}
}
}
_visitView(view, aggregator) {
for (var i = 0; i < view.appElements.length; i++) {
var inj = view.appElements[i];
this._visitInjector(inj, aggregator);
this._visitViewContainerViews(inj.nestedViews, aggregator);
}
}
_aggregateVariableBinding(inj, aggregator) {
var vb = this.protoQueryRef.query.varBindings;
for (var i = 0; i < vb.length; ++i) {
if (inj.hasVariableBinding(vb[i])) {
aggregator.push(inj.getVariableBinding(vb[i]));
}
}
}
_aggregateDirective(inj, aggregator) {
inj.addDirectivesMatchingQuery(this.protoQueryRef.query, aggregator);
}
}
class _ComponentViewChangeDetectorRef extends ChangeDetectorRef {
constructor(_appElement) {
super();
this._appElement = _appElement;
}
markForCheck() { this._appElement.componentView.changeDetector.ref.markForCheck(); }
detach() { this._appElement.componentView.changeDetector.ref.detach(); }
detectChanges() { this._appElement.componentView.changeDetector.ref.detectChanges(); }
checkNoChanges() { this._appElement.componentView.changeDetector.ref.checkNoChanges(); }
reattach() { this._appElement.componentView.changeDetector.ref.reattach(); }
}