angular2
Version:
Angular 2 - a web framework for modern web apps
131 lines • 19.2 kB
JavaScript
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
if (typeof Reflect === "object" && typeof Reflect.decorate === "function") return Reflect.decorate(decorators, target, key, desc);
switch (arguments.length) {
case 2: return decorators.reduceRight(function(o, d) { return (d && d(o)) || o; }, target);
case 3: return decorators.reduceRight(function(o, d) { return (d && d(target, key)), void 0; }, void 0);
case 4: return decorators.reduceRight(function(o, d) { return (d && d(target, key, o)) || o; }, desc);
}
};
var __metadata = (this && this.__metadata) || function (k, v) {
if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
import { resolveForwardRef, Injectable } from 'angular2/src/core/di';
import { isPresent, stringify } from 'angular2/src/facade/lang';
import { BaseException } from 'angular2/src/facade/exceptions';
import { ListWrapper, StringMapWrapper } from 'angular2/src/facade/collection';
import { DirectiveMetadata, ComponentMetadata, InputMetadata, OutputMetadata, HostBindingMetadata, HostListenerMetadata, ContentChildrenMetadata, ViewChildrenMetadata, ContentChildMetadata, ViewChildMetadata } from 'angular2/src/core/metadata';
import { reflector } from 'angular2/src/core/reflection/reflection';
function _isDirectiveMetadata(type) {
return type instanceof DirectiveMetadata;
}
/*
* Resolve a `Type` for {@link DirectiveMetadata}.
*
* This interface can be overridden by the application developer to create custom behavior.
*
* See {@link Compiler}
*/
export let DirectiveResolver = class {
/**
* Return {@link DirectiveMetadata} for a given `Type`.
*/
resolve(type) {
var typeMetadata = reflector.annotations(resolveForwardRef(type));
if (isPresent(typeMetadata)) {
var metadata = typeMetadata.find(_isDirectiveMetadata);
if (isPresent(metadata)) {
var propertyMetadata = reflector.propMetadata(type);
return this._mergeWithPropertyMetadata(metadata, propertyMetadata);
}
}
throw new BaseException(`No Directive annotation found on ${stringify(type)}`);
}
_mergeWithPropertyMetadata(dm, propertyMetadata) {
var inputs = [];
var outputs = [];
var host = {};
var queries = {};
StringMapWrapper.forEach(propertyMetadata, (metadata, propName) => {
metadata.forEach(a => {
if (a instanceof InputMetadata) {
if (isPresent(a.bindingPropertyName)) {
inputs.push(`${propName}: ${a.bindingPropertyName}`);
}
else {
inputs.push(propName);
}
}
if (a instanceof OutputMetadata) {
if (isPresent(a.bindingPropertyName)) {
outputs.push(`${propName}: ${a.bindingPropertyName}`);
}
else {
outputs.push(propName);
}
}
if (a instanceof HostBindingMetadata) {
if (isPresent(a.hostPropertyName)) {
host[`[${a.hostPropertyName}]`] = propName;
}
else {
host[`[${propName}]`] = propName;
}
}
if (a instanceof HostListenerMetadata) {
var args = isPresent(a.args) ? a.args.join(', ') : '';
host[`(${a.eventName})`] = `${propName}(${args})`;
}
if (a instanceof ContentChildrenMetadata) {
queries[propName] = a;
}
if (a instanceof ViewChildrenMetadata) {
queries[propName] = a;
}
if (a instanceof ContentChildMetadata) {
queries[propName] = a;
}
if (a instanceof ViewChildMetadata) {
queries[propName] = a;
}
});
});
return this._merge(dm, inputs, outputs, host, queries);
}
_merge(dm, inputs, outputs, host, queries) {
var mergedInputs = isPresent(dm.inputs) ? ListWrapper.concat(dm.inputs, inputs) : inputs;
var mergedOutputs = isPresent(dm.outputs) ? ListWrapper.concat(dm.outputs, outputs) : outputs;
var mergedHost = isPresent(dm.host) ? StringMapWrapper.merge(dm.host, host) : host;
var mergedQueries = isPresent(dm.queries) ? StringMapWrapper.merge(dm.queries, queries) : queries;
if (dm instanceof ComponentMetadata) {
return new ComponentMetadata({
selector: dm.selector,
inputs: mergedInputs,
outputs: mergedOutputs,
host: mergedHost,
exportAs: dm.exportAs,
moduleId: dm.moduleId,
queries: mergedQueries,
changeDetection: dm.changeDetection,
providers: dm.providers,
viewProviders: dm.viewProviders
});
}
else {
return new DirectiveMetadata({
selector: dm.selector,
inputs: mergedInputs,
outputs: mergedOutputs,
host: mergedHost,
exportAs: dm.exportAs,
moduleId: dm.moduleId,
queries: mergedQueries,
providers: dm.providers
});
}
}
};
DirectiveResolver = __decorate([
Injectable(),
__metadata('design:paramtypes', [])
], DirectiveResolver);
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{resolveForwardRef, Injectable} from 'angular2/src/core/di';\nimport {Type, isPresent, isBlank, stringify} from 'angular2/src/facade/lang';\nimport {BaseException} from 'angular2/src/facade/exceptions';\nimport {ListWrapper, StringMapWrapper} from 'angular2/src/facade/collection';\nimport {\n  DirectiveMetadata,\n  ComponentMetadata,\n  InputMetadata,\n  OutputMetadata,\n  HostBindingMetadata,\n  HostListenerMetadata,\n  ContentChildrenMetadata,\n  ViewChildrenMetadata,\n  ContentChildMetadata,\n  ViewChildMetadata\n} from 'angular2/src/core/metadata';\nimport {reflector} from 'angular2/src/core/reflection/reflection';\n\nfunction _isDirectiveMetadata(type: any): boolean {\n  return type instanceof DirectiveMetadata;\n}\n\n/*\n * Resolve a `Type` for {@link DirectiveMetadata}.\n *\n * This interface can be overridden by the application developer to create custom behavior.\n *\n * See {@link Compiler}\n */\n@Injectable()\nexport class DirectiveResolver {\n  /**\n   * Return {@link DirectiveMetadata} for a given `Type`.\n   */\n  resolve(type: Type): DirectiveMetadata {\n    var typeMetadata = reflector.annotations(resolveForwardRef(type));\n    if (isPresent(typeMetadata)) {\n      var metadata = typeMetadata.find(_isDirectiveMetadata);\n      if (isPresent(metadata)) {\n        var propertyMetadata = reflector.propMetadata(type);\n        return this._mergeWithPropertyMetadata(metadata, propertyMetadata);\n      }\n    }\n\n    throw new BaseException(`No Directive annotation found on ${stringify(type)}`);\n  }\n\n  private _mergeWithPropertyMetadata(dm: DirectiveMetadata,\n                                     propertyMetadata: {[key: string]: any[]}): DirectiveMetadata {\n    var inputs = [];\n    var outputs = [];\n    var host: {[key: string]: string} = {};\n    var queries: {[key: string]: any} = {};\n\n    StringMapWrapper.forEach(propertyMetadata, (metadata: any[], propName: string) => {\n      metadata.forEach(a => {\n        if (a instanceof InputMetadata) {\n          if (isPresent(a.bindingPropertyName)) {\n            inputs.push(`${propName}: ${a.bindingPropertyName}`);\n          } else {\n            inputs.push(propName);\n          }\n        }\n\n        if (a instanceof OutputMetadata) {\n          if (isPresent(a.bindingPropertyName)) {\n            outputs.push(`${propName}: ${a.bindingPropertyName}`);\n          } else {\n            outputs.push(propName);\n          }\n        }\n\n        if (a instanceof HostBindingMetadata) {\n          if (isPresent(a.hostPropertyName)) {\n            host[`[${a.hostPropertyName}]`] = propName;\n          } else {\n            host[`[${propName}]`] = propName;\n          }\n        }\n\n        if (a instanceof HostListenerMetadata) {\n          var args = isPresent(a.args) ? (<any[]>a.args).join(', ') : '';\n          host[`(${a.eventName})`] = `${propName}(${args})`;\n        }\n\n        if (a instanceof ContentChildrenMetadata) {\n          queries[propName] = a;\n        }\n\n        if (a instanceof ViewChildrenMetadata) {\n          queries[propName] = a;\n        }\n\n        if (a instanceof ContentChildMetadata) {\n          queries[propName] = a;\n        }\n\n        if (a instanceof ViewChildMetadata) {\n          queries[propName] = a;\n        }\n      });\n    });\n    return this._merge(dm, inputs, outputs, host, queries);\n  }\n\n  private _merge(dm: DirectiveMetadata, inputs: string[], outputs: string[],\n                 host: {[key: string]: string}, queries: {[key: string]: any}): DirectiveMetadata {\n    var mergedInputs = isPresent(dm.inputs) ? ListWrapper.concat(dm.inputs, inputs) : inputs;\n    var mergedOutputs = isPresent(dm.outputs) ? ListWrapper.concat(dm.outputs, outputs) : outputs;\n    var mergedHost = isPresent(dm.host) ? StringMapWrapper.merge(dm.host, host) : host;\n    var mergedQueries =\n        isPresent(dm.queries) ? StringMapWrapper.merge(dm.queries, queries) : queries;\n\n    if (dm instanceof ComponentMetadata) {\n      return new ComponentMetadata({\n        selector: dm.selector,\n        inputs: mergedInputs,\n        outputs: mergedOutputs,\n        host: mergedHost,\n        exportAs: dm.exportAs,\n        moduleId: dm.moduleId,\n        queries: mergedQueries,\n        changeDetection: dm.changeDetection,\n        providers: dm.providers,\n        viewProviders: dm.viewProviders\n      });\n\n    } else {\n      return new DirectiveMetadata({\n        selector: dm.selector,\n        inputs: mergedInputs,\n        outputs: mergedOutputs,\n        host: mergedHost,\n        exportAs: dm.exportAs,\n        moduleId: dm.moduleId,\n        queries: mergedQueries,\n        providers: dm.providers\n      });\n    }\n  }\n}\n"]}