@angular/core
Version:
Angular - the core framework
73 lines • 13.2 kB
JavaScript
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import { assertFirstCreatePass } from '../assert';
import { attachPatchData } from '../context_discovery';
import { registerPostOrderHooks } from '../hooks';
import { isDirectiveHost } from '../interfaces/type_checks';
import { HEADER_OFFSET, RENDERER, T_HOST } from '../interfaces/view';
import { appendChild } from '../node_manipulation';
import { getLView, getTView, setPreviousOrParentTNode } from '../state';
import { getConstant } from '../util/view_utils';
import { addToViewTree, createDirectivesInstances, createLContainer, createTNode, createTView, getOrCreateTNode, resolveDirectives, saveResolvedLocalsInData } from './shared';
function templateFirstCreatePass(index, tView, lView, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex) {
ngDevMode && assertFirstCreatePass(tView);
ngDevMode && ngDevMode.firstCreatePass++;
const tViewConsts = tView.consts;
// TODO(pk): refactor getOrCreateTNode to have the "create" only version
const tNode = getOrCreateTNode(tView, lView[T_HOST], index, 0 /* Container */, tagName || null, getConstant(tViewConsts, attrsIndex));
resolveDirectives(tView, lView, tNode, getConstant(tViewConsts, localRefsIndex));
registerPostOrderHooks(tView, tNode);
const embeddedTView = tNode.tViews = createTView(2 /* Embedded */, -1, templateFn, decls, vars, tView.directiveRegistry, tView.pipeRegistry, null, tView.schemas, tViewConsts);
const embeddedTViewNode = createTNode(tView, null, 2 /* View */, -1, null, null);
embeddedTViewNode.injectorIndex = tNode.injectorIndex;
embeddedTView.node = embeddedTViewNode;
if (tView.queries !== null) {
tView.queries.template(tView, tNode);
embeddedTView.queries = tView.queries.embeddedTView(tNode);
}
return tNode;
}
/**
* Creates an LContainer for an ng-template (dynamically-inserted view), e.g.
*
* <ng-template #foo>
* <div></div>
* </ng-template>
*
* @param index The index of the container in the data array
* @param templateFn Inline template
* @param decls The number of nodes, local refs, and pipes for this template
* @param vars The number of bindings for this template
* @param tagName The name of the container element, if applicable
* @param attrsIndex Index of template attributes in the `consts` array.
* @param localRefs Index of the local references in the `consts` array.
* @param localRefExtractor A function which extracts local-refs values from the template.
* Defaults to the current element associated with the local-ref.
*
* @codeGenApi
*/
export function ɵɵtemplate(index, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex, localRefExtractor) {
const lView = getLView();
const tView = getTView();
const adjustedIndex = index + HEADER_OFFSET;
const tNode = tView.firstCreatePass ?
templateFirstCreatePass(index, tView, lView, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex) :
tView.data[adjustedIndex];
setPreviousOrParentTNode(tNode, false);
const comment = lView[RENDERER].createComment(ngDevMode ? 'container' : '');
appendChild(tView, lView, comment, tNode);
attachPatchData(comment, lView);
addToViewTree(lView, lView[adjustedIndex] = createLContainer(comment, lView, comment, tNode));
if (isDirectiveHost(tNode)) {
createDirectivesInstances(tView, lView, tNode);
}
if (localRefsIndex != null) {
saveResolvedLocalsInData(lView, tNode, localRefExtractor);
}
}
//# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\nimport {assertFirstCreatePass} from '../assert';\nimport {attachPatchData} from '../context_discovery';\nimport {registerPostOrderHooks} from '../hooks';\nimport {ComponentTemplate} from '../interfaces/definition';\nimport {LocalRefExtractor, TAttributes, TContainerNode, TNodeType, TViewNode} from '../interfaces/node';\nimport {isDirectiveHost} from '../interfaces/type_checks';\nimport {HEADER_OFFSET, LView, RENDERER, T_HOST, TView, TViewType} from '../interfaces/view';\nimport {appendChild} from '../node_manipulation';\nimport {getLView, getTView, setPreviousOrParentTNode} from '../state';\nimport {getConstant} from '../util/view_utils';\n\nimport {addToViewTree, createDirectivesInstances, createLContainer, createTNode, createTView, getOrCreateTNode, resolveDirectives, saveResolvedLocalsInData} from './shared';\n\n\nfunction templateFirstCreatePass(\n    index: number, tView: TView, lView: LView, templateFn: ComponentTemplate<any>|null,\n    decls: number, vars: number, tagName?: string|null, attrsIndex?: number|null,\n    localRefsIndex?: number|null): TContainerNode {\n  ngDevMode && assertFirstCreatePass(tView);\n  ngDevMode && ngDevMode.firstCreatePass++;\n  const tViewConsts = tView.consts;\n  // TODO(pk): refactor getOrCreateTNode to have the \"create\" only version\n  const tNode = getOrCreateTNode(\n      tView, lView[T_HOST], index, TNodeType.Container, tagName || null,\n      getConstant<TAttributes>(tViewConsts, attrsIndex));\n\n  resolveDirectives(tView, lView, tNode, getConstant<string[]>(tViewConsts, localRefsIndex));\n  registerPostOrderHooks(tView, tNode);\n\n  const embeddedTView = tNode.tViews = createTView(\n      TViewType.Embedded, -1, templateFn, decls, vars, tView.directiveRegistry, tView.pipeRegistry,\n      null, tView.schemas, tViewConsts);\n  const embeddedTViewNode = createTNode(tView, null, TNodeType.View, -1, null, null) as TViewNode;\n  embeddedTViewNode.injectorIndex = tNode.injectorIndex;\n  embeddedTView.node = embeddedTViewNode;\n\n  if (tView.queries !== null) {\n    tView.queries.template(tView, tNode);\n    embeddedTView.queries = tView.queries.embeddedTView(tNode);\n  }\n\n  return tNode;\n}\n\n/**\n * Creates an LContainer for an ng-template (dynamically-inserted view), e.g.\n *\n * <ng-template #foo>\n *    <div></div>\n * </ng-template>\n *\n * @param index The index of the container in the data array\n * @param templateFn Inline template\n * @param decls The number of nodes, local refs, and pipes for this template\n * @param vars The number of bindings for this template\n * @param tagName The name of the container element, if applicable\n * @param attrsIndex Index of template attributes in the `consts` array.\n * @param localRefs Index of the local references in the `consts` array.\n * @param localRefExtractor A function which extracts local-refs values from the template.\n *        Defaults to the current element associated with the local-ref.\n *\n * @codeGenApi\n */\nexport function ɵɵtemplate(\n    index: number, templateFn: ComponentTemplate<any>|null, decls: number, vars: number,\n    tagName?: string|null, attrsIndex?: number|null, localRefsIndex?: number|null,\n    localRefExtractor?: LocalRefExtractor) {\n  const lView = getLView();\n  const tView = getTView();\n  const adjustedIndex = index + HEADER_OFFSET;\n\n  const tNode = tView.firstCreatePass ?\n      templateFirstCreatePass(\n          index, tView, lView, templateFn, decls, vars, tagName, attrsIndex, localRefsIndex) :\n      tView.data[adjustedIndex] as TContainerNode;\n  setPreviousOrParentTNode(tNode, false);\n\n  const comment = lView[RENDERER].createComment(ngDevMode ? 'container' : '');\n  appendChild(tView, lView, comment, tNode);\n  attachPatchData(comment, lView);\n\n  addToViewTree(lView, lView[adjustedIndex] = createLContainer(comment, lView, comment, tNode));\n\n  if (isDirectiveHost(tNode)) {\n    createDirectivesInstances(tView, lView, tNode);\n  }\n\n  if (localRefsIndex != null) {\n    saveResolvedLocalsInData(lView, tNode, localRefExtractor);\n  }\n}\n"]}