feat(View): implement ProtoView.instantiate

modules/core/src/compiler/element_injector.js

@@ -177,8 +177,9 @@ export class ProtoElementInjector extends TreeNode {
       throw 'Maximum number of directives per element has been reached.';
     }
 
+    this.textNodes = textNodes;
+
     // dummy fields to make analyzer happy
-    this.textNodes = [];
     this.hasProperties = false;
   }
 

modules/core/src/compiler/view.js

@@ -2,10 +2,9 @@ import {DOM, Element, Node, Text, DocumentFragment, TemplateElement} from 'facad
 import {ListWrapper} from 'facade/collection';
 import {ProtoWatchGroup, WatchGroup, WatchGroupDispatcher} from 'change_detection/watch_group';
 import {Record} from 'change_detection/record';
-import {Module} from 'di/di';
 import {ProtoElementInjector, ElementInjector} from './element_injector';
 import {SetterFn} from 'change_detection/facade';
-import {FIELD, IMPLEMENTS, int} from 'facade/lang';
+import {FIELD, IMPLEMENTS, int, isPresent, isBlank} from 'facade/lang';
 import {List} from 'facade/collection';
 
 /***
@@ -24,12 +23,13 @@ export class View {
   /// to keep track of the nodes.
   @FIELD('final nodes:List<Node>')
   @FIELD('final onChangeDispatcher:OnChangeDispatcher')
-  constructor(fragment:DocumentFragment) {
+  constructor(fragment:DocumentFragment, elementInjector:List, rootElementInjectors:List, textNodes:List) {
     this.fragment = fragment;
     this.nodes = ListWrapper.clone(fragment.childNodes);
+    this.elementInjectors = elementInjector;
+    this.rootElementInjectors = rootElementInjectors;
     this.onChangeDispatcher = null;
-    this.elementInjectors = null;
-    this.textNodes = null;
+    this.textNodes = textNodes;
     this.bindElements = null;
   }
 
@@ -52,26 +52,72 @@ export class View {
 
 export class ProtoView {
   @FIELD('final _template:TemplateElement')
-  @FIELD('final _module:Module')
+  @FIELD('final _bindings:List')
   @FIELD('final _protoElementInjectors:List<ProtoElementInjector>')
   @FIELD('final _protoWatchGroup:ProtoWatchGroup')
   @FIELD('final _useRootElement:bool')
   constructor(
       template:TemplateElement,
-      module:Module,
-      protoElementInjector:List<ProtoElementInjector>,
+      bindings:List,
+      protoElementInjectors:List,
       protoWatchGroup:ProtoWatchGroup,
-      useRootElement:boolean)
-  {
+      useRootElement:boolean) {
     this._template = template;
-    this._module = module;
-    this._protoElementInjectors = protoElementInjector;
+    this._bindings = bindings;
+    this._protoElementInjectors = protoElementInjectors;
+
+    // not implemented
     this._protoWatchGroup = protoWatchGroup;
     this._useRootElement = useRootElement;
   }
 
   instantiate():View {
-    return new View(DOM.clone(this._template.content));
+    var fragment = DOM.clone(this._template.content);
+    var elements = DOM.querySelectorAll(fragment, ".ng-binding");
+    var protos = this._protoElementInjectors;
+
+    /**
+     * TODO: vsavkin: benchmark
+     * If this performs poorly, the three loops can be collapsed into one.
+     */
+    var elementInjectors = ProtoView._createElementInjectors(elements, protos);
+    var rootElementInjectors = ProtoView._rootElementInjectors(elementInjectors);
+    var textNodes = ProtoView._textNodes(elements, protos);
+
+    return new View(fragment, elementInjectors, rootElementInjectors, textNodes);
+  }
+
+  static _createElementInjectors(elements, protos) {
+    var injectors = ListWrapper.createFixedSize(protos.length);
+    for (var i = 0; i < protos.length; ++i) {
+      injectors[i] = ProtoView._createElementInjector(elements[i], protos[i]);
+    }
+    ListWrapper.forEach(protos, p => p.clearElementInjector());
+    return injectors;
+  }
+
+  static _createElementInjector(element, proto) {
+    //TODO: vsavkin: pass element to `proto.instantiate()` once https://github.com/angular/angular/pull/98 is merged
+    return proto.hasBindings ? proto.instantiate({view:null}) : null;
+  }
+
+  static _rootElementInjectors(injectors) {
+    return ListWrapper.filter(injectors, inj => isPresent(inj) && isBlank(inj.parent));
+  }
+
+  static _textNodes(elements, protos) {
+    var textNodes = [];
+    for (var i = 0; i < protos.length; ++i) {
+      ProtoView._collectTextNodes(textNodes, elements[i], protos[i]);
+    }
+    return textNodes;
+  }
+
+  static _collectTextNodes(allTextNodes, element, proto) {
+    var childNodes = DOM.childNodes(element);
+    ListWrapper.forEach(proto.textNodes, (i) => {
+      ListWrapper.push(allTextNodes, childNodes[i]);
+    });
   }
 }
 

modules/core/test/compiler/view_spec.js

@@ -1,49 +1,63 @@
 import {describe, xit, it, expect} from 'test_lib/test_lib';
-import {ProtoWatchGroup} from 'change_detection/watch_group';
-import {ProtoView, View} from 'core/compiler/view';
+import {ProtoView} from 'core/compiler/view';
 import {ProtoElementInjector, ElementInjector} from 'core/compiler/element_injector';
 import {DOM, Element} from 'facade/dom';
-import {Module} from 'di/di';
+
+class Directive {
+}
 
 export function main() {
   describe('view', function() {
     describe('ProtoView', function() {
-      it('should create an instance of view', function() {
-        var template = DOM.createTemplate('Hello <b>world</b>!');
-        var pv = new ProtoView(template, null, null, null, false);
-        var view:View = pv.instantiate();
-        expect(view instanceof View).toBe(true);
-      });
-
-
-      xit('should create view instance and locate basic parts', function() {
+      it('should create view instance and locate basic parts', function() {
         var template = DOM.createTemplate(
-            '<section class="ng-binding" no-injector>' +
+            '<section class="ng-binding">' +
                'Hello {}!' +
-               '<div directive class="ng-binding" injector>' +
-                 '<span class="ng-binding" [hidden]="exp" no-injector>don\'t show me</span>' +
+               '<div directive class="ng-binding">' +
+                 '<span class="ng-binding">don\'t show me</span>' +
                '</div>' +
              '</section>');
-        var module:Module = null;
-        var sectionPI = new ProtoElementInjector(null, null, null);
-        sectionPI.textNodes = [0];
-        var divPI = new ProtoElementInjector(null, null, null);
-        var spanPI = new ProtoElementInjector(null, null, null);
-        spanPI.hasProperties = true;
-        var protoElementInjector:List<ProtoElementInjector> = [sectionPI, divPI, spanPI];
-        var protoWatchGroup:ProtoWatchGroup = null;
-        var hasSingleRoot:boolean = false;
-        var pv = new ProtoView(template, module, protoElementInjector, protoWatchGroup, hasSingleRoot);
-        var view:View = pv.instantiate();
-        var section:Element = template.content.firstChild;
-        var div:Element = DOM.getElementsByTagName(section, 'div');
-        var span:Element = DOM.getElementsByTagName(div, 'span');
-        expect(DOM.getInnerHTML(view.fragment)).toEqual(DOM.getInnerHTML(section)); // exclude top level <section>
-        expect(view.nodes).toEqual([view.fragment.firstChild.childNodes]); // TextNode(Hello...), <div>
-        var elementInjector:ElementInjector = view.elementInjectors[1];
-        expect(view.elementInjectors).toEqual([null, elementInjector, null]); // only second one has directive
-        expect(view.bindElements).toEqual([span]);
-        expect(view.textNodes).toEqual([section.childNodes[0]]);
+
+        var diBindings = [];
+
+        var sectionPI = new ProtoElementInjector(null, [], [0]);
+        var divPI = new ProtoElementInjector(sectionPI, [Directive], []);
+        var spanPI = new ProtoElementInjector(divPI, [], []);
+        var protoElementInjectors = [sectionPI, divPI, spanPI];
+
+        var protoWatchGroup = null;
+        var hasSingleRoot = false;
+        var pv = new ProtoView(template, diBindings, protoElementInjectors,
+            protoWatchGroup, hasSingleRoot);
+
+        var view = pv.instantiate();
+
+        var section = DOM.firstChild(template.content);
+
+        expect(DOM.getInnerHTML(DOM.firstChild(view.fragment))).toEqual(DOM.getInnerHTML(section)); // exclude top level <section>
+
+        expect(view.elementInjectors.length).toEqual(3);
+        expect(view.elementInjectors[0]).toBeNull();
+        expect(view.elementInjectors[1]).toBeAnInstanceOf(ElementInjector);
+        expect(view.elementInjectors[2]).toBeNull();
+
+        expect(view.textNodes.length).toEqual(1);
+        expect(view.textNodes[0].nodeValue).toEqual('Hello {}!');
+      });
+
+      it('should set root element injectors', function() {
+        var template = DOM.createTemplate(
+          '<section directive class="ng-binding">' +
+            '<div directive class="ng-binding"></div>' +
+          '</section>');
+
+        var sectionPI = new ProtoElementInjector(null, [Directive], []);
+        var divPI = new ProtoElementInjector(sectionPI, [Directive], []);
+
+        var pv = new ProtoView(template, [], [sectionPI, divPI], null, false);
+        var view = pv.instantiate();
+
+        expect(view.rootElementInjectors.length).toEqual(1);
       });
     });
   });

modules/facade/src/collection.dart

@@ -22,6 +22,7 @@ class ListWrapper {
   static void set(m, k, v) { m[k] = v; }
   static contains(m, k) => m.containsKey(k);
   static map(list, fn) => list.map(fn).toList();
+  static filter(List list, fn) => list.where(fn).toList();
   static find(List list, fn) => list.firstWhere(fn, orElse:() => null);
   static any(List list, fn) => list.any(fn);
   static forEach(list, fn) {

modules/facade/src/collection.es6

@@ -47,6 +47,9 @@ export class ListWrapper {
     }
     return null;
   }
+  static filter(array, pred:Function) {
+    return array.filter(pred);
+  }
   static any(list:List, pred:Function) {
     for (var i = 0 ; i < list.length; ++i) {
       if (pred(list[i])) return true;

modules/facade/src/dom.dart

@@ -9,6 +9,9 @@ class DOM {
   static query(selector) {
     return document.querySelector(selector);
   }
+  static ElementList querySelectorAll(el, String selector) {
+    return el.querySelectorAll(selector);
+  }
   static on(element, event, callback) {
     element.addEventListener(event, callback);
   }
@@ -18,6 +21,12 @@ class DOM {
   static setInnerHTML(el, value) {
     el.innerHtml = value;
   }
+  static Node firstChild(el) {
+    return el.firstChild;
+  }
+  static List<Node> childNodes(el) {
+    return el.childNodes;
+  }
   static setText(Text text, String value) {
     text.text = value;
   }

modules/facade/src/dom.es6

@@ -1,23 +1,34 @@
 export var DocumentFragment = window.DocumentFragment;
 export var Node = window.Node;
+export var NodeList = window.NodeList;
 export var Text = window.Text;
 export var Element = window.HTMLElement;
 export var TemplateElement = window.HTMLTemplateElement;
+import {List} from 'facade/collection';
 
 export class DOM {
   static query(selector) {
     return document.querySelector(selector);
   }
+  static querySelectorAll(el, selector:string):NodeList {
+    return el.querySelectorAll(selector);
+  }
   static on(el, evt, listener) {
     el.addEventListener(evt, listener, false);
   }
   static getInnerHTML(el) {
     return el.innerHTML;
   }
+  static firstChild(el):Node {
+    return el.firstChild;
+  }
+  static childNodes(el):NodeList {
+    return el.childNodes;
+  }
   static setInnerHTML(el, value) {
     el.innerHTML = value;
   }
-  static setText(text:Text, value:String) {
+  static setText(text:Text, value:string) {
     text.nodeValue = value;
   }
   static createTemplate(html) {