1 | /**
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2 | * @license
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3 | * Copyright Google Inc. All Rights Reserved.
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4 | *
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5 | * Use of this source code is governed by an MIT-style license that can be
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6 | * found in the LICENSE file at https://angular.io/license
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7 | */
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8 | (function (factory) {
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9 | if (typeof module === "object" && typeof module.exports === "object") {
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10 | var v = factory(require, exports);
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11 | if (v !== undefined) module.exports = v;
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12 | }
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13 | else if (typeof define === "function" && define.amd) {
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14 | define("@angular/compiler/src/style_compiler", ["require", "exports", "@angular/compiler/src/compile_metadata", "@angular/compiler/src/core", "@angular/compiler/src/output/output_ast", "@angular/compiler/src/shadow_css"], factory);
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15 | }
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16 | })(function (require, exports) {
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17 | ;
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18 | Object.defineProperty(exports, "__esModule", { value: true });
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19 | var compile_metadata_1 = require("@angular/compiler/src/compile_metadata");
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20 | var core_1 = require("@angular/compiler/src/core");
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21 | var o = require("@angular/compiler/src/output/output_ast");
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22 | var shadow_css_1 = require("@angular/compiler/src/shadow_css");
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23 | var COMPONENT_VARIABLE = '%COMP%';
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24 | exports.HOST_ATTR = "_nghost-" + COMPONENT_VARIABLE;
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25 | exports.CONTENT_ATTR = "_ngcontent-" + COMPONENT_VARIABLE;
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26 | var StylesCompileDependency = /** @class */ (function () {
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27 | function StylesCompileDependency(name, moduleUrl, setValue) {
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28 | this.name = name;
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29 | this.moduleUrl = moduleUrl;
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30 | this.setValue = setValue;
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31 | }
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32 | return StylesCompileDependency;
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33 | }());
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34 | exports.StylesCompileDependency = StylesCompileDependency;
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35 | var CompiledStylesheet = /** @class */ (function () {
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36 | function CompiledStylesheet(outputCtx, stylesVar, dependencies, isShimmed, meta) {
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37 | this.outputCtx = outputCtx;
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38 | this.stylesVar = stylesVar;
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39 | this.dependencies = dependencies;
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40 | this.isShimmed = isShimmed;
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41 | this.meta = meta;
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42 | }
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43 | return CompiledStylesheet;
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44 | }());
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45 | exports.CompiledStylesheet = CompiledStylesheet;
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46 | var StyleCompiler = /** @class */ (function () {
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47 | function StyleCompiler(_urlResolver) {
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48 | this._urlResolver = _urlResolver;
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49 | this._shadowCss = new shadow_css_1.ShadowCss();
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50 | }
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51 | StyleCompiler.prototype.compileComponent = function (outputCtx, comp) {
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52 | var template = comp.template;
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53 | return this._compileStyles(outputCtx, comp, new compile_metadata_1.CompileStylesheetMetadata({
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54 | styles: template.styles,
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55 | styleUrls: template.styleUrls,
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56 | moduleUrl: compile_metadata_1.identifierModuleUrl(comp.type)
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57 | }), this.needsStyleShim(comp), true);
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58 | };
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59 | StyleCompiler.prototype.compileStyles = function (outputCtx, comp, stylesheet, shim) {
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60 | if (shim === void 0) { shim = this.needsStyleShim(comp); }
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61 | return this._compileStyles(outputCtx, comp, stylesheet, shim, false);
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62 | };
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63 | StyleCompiler.prototype.needsStyleShim = function (comp) {
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64 | return comp.template.encapsulation === core_1.ViewEncapsulation.Emulated;
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65 | };
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66 | StyleCompiler.prototype._compileStyles = function (outputCtx, comp, stylesheet, shim, isComponentStylesheet) {
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67 | var _this = this;
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68 | var styleExpressions = stylesheet.styles.map(function (plainStyle) { return o.literal(_this._shimIfNeeded(plainStyle, shim)); });
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69 | var dependencies = [];
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70 | stylesheet.styleUrls.forEach(function (styleUrl) {
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71 | var exprIndex = styleExpressions.length;
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72 | // Note: This placeholder will be filled later.
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73 | styleExpressions.push(null);
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74 | dependencies.push(new StylesCompileDependency(getStylesVarName(null), styleUrl, function (value) { return styleExpressions[exprIndex] = outputCtx.importExpr(value); }));
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75 | });
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76 | // styles variable contains plain strings and arrays of other styles arrays (recursive),
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77 | // so we set its type to dynamic.
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78 | var stylesVar = getStylesVarName(isComponentStylesheet ? comp : null);
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79 | var stmt = o.variable(stylesVar)
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80 | .set(o.literalArr(styleExpressions, new o.ArrayType(o.DYNAMIC_TYPE, [o.TypeModifier.Const])))
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81 | .toDeclStmt(null, isComponentStylesheet ? [o.StmtModifier.Final] : [
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82 | o.StmtModifier.Final, o.StmtModifier.Exported
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83 | ]);
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84 | outputCtx.statements.push(stmt);
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85 | return new CompiledStylesheet(outputCtx, stylesVar, dependencies, shim, stylesheet);
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86 | };
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87 | StyleCompiler.prototype._shimIfNeeded = function (style, shim) {
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88 | return shim ? this._shadowCss.shimCssText(style, exports.CONTENT_ATTR, exports.HOST_ATTR) : style;
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89 | };
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90 | return StyleCompiler;
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91 | }());
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92 | exports.StyleCompiler = StyleCompiler;
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93 | function getStylesVarName(component) {
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94 | var result = "styles";
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95 | if (component) {
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96 | result += "_" + compile_metadata_1.identifierName(component.type);
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97 | }
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98 | return result;
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99 | }
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100 | });
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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 */\n\nimport {CompileDirectiveMetadata, CompileIdentifierMetadata, CompileStylesheetMetadata, identifierModuleUrl, identifierName} from './compile_metadata';\nimport {ViewEncapsulation} from './core';\nimport * as o from './output/output_ast';\nimport {ShadowCss} from './shadow_css';\nimport {UrlResolver} from './url_resolver';\nimport {OutputContext} from './util';\n\nconst COMPONENT_VARIABLE = '%COMP%';\nexport const HOST_ATTR = `_nghost-${COMPONENT_VARIABLE}`;\nexport const CONTENT_ATTR = `_ngcontent-${COMPONENT_VARIABLE}`;\n\nexport class StylesCompileDependency {\n  constructor(\n      public name: string, public moduleUrl: string, public setValue: (value: any) => void) {}\n}\n\nexport class CompiledStylesheet {\n  constructor(\n      public outputCtx: OutputContext, public stylesVar: string,\n      public dependencies: StylesCompileDependency[], public isShimmed: boolean,\n      public meta: CompileStylesheetMetadata) {}\n}\n\nexport class StyleCompiler {\n  private _shadowCss: ShadowCss = new ShadowCss();\n\n  constructor(private _urlResolver: UrlResolver) {}\n\n  compileComponent(outputCtx: OutputContext, comp: CompileDirectiveMetadata): CompiledStylesheet {\n    const template = comp.template !;\n    return this._compileStyles(\n        outputCtx, comp, new CompileStylesheetMetadata({\n          styles: template.styles,\n          styleUrls: template.styleUrls,\n          moduleUrl: identifierModuleUrl(comp.type)\n        }),\n        this.needsStyleShim(comp), true);\n  }\n\n  compileStyles(\n      outputCtx: OutputContext, comp: CompileDirectiveMetadata,\n      stylesheet: CompileStylesheetMetadata,\n      shim: boolean = this.needsStyleShim(comp)): CompiledStylesheet {\n    return this._compileStyles(outputCtx, comp, stylesheet, shim, false);\n  }\n\n  needsStyleShim(comp: CompileDirectiveMetadata): boolean {\n    return comp.template !.encapsulation === ViewEncapsulation.Emulated;\n  }\n\n  private _compileStyles(\n      outputCtx: OutputContext, comp: CompileDirectiveMetadata,\n      stylesheet: CompileStylesheetMetadata, shim: boolean,\n      isComponentStylesheet: boolean): CompiledStylesheet {\n    const styleExpressions: o.Expression[] =\n        stylesheet.styles.map(plainStyle => o.literal(this._shimIfNeeded(plainStyle, shim)));\n    const dependencies: StylesCompileDependency[] = [];\n    stylesheet.styleUrls.forEach((styleUrl) => {\n      const exprIndex = styleExpressions.length;\n      // Note: This placeholder will be filled later.\n      styleExpressions.push(null !);\n      dependencies.push(new StylesCompileDependency(\n          getStylesVarName(null), styleUrl,\n          (value) => styleExpressions[exprIndex] = outputCtx.importExpr(value)));\n    });\n    // styles variable contains plain strings and arrays of other styles arrays (recursive),\n    // so we set its type to dynamic.\n    const stylesVar = getStylesVarName(isComponentStylesheet ? comp : null);\n    const stmt = o.variable(stylesVar)\n                     .set(o.literalArr(\n                         styleExpressions, new o.ArrayType(o.DYNAMIC_TYPE, [o.TypeModifier.Const])))\n                     .toDeclStmt(null, isComponentStylesheet ? [o.StmtModifier.Final] : [\n                       o.StmtModifier.Final, o.StmtModifier.Exported\n                     ]);\n    outputCtx.statements.push(stmt);\n    return new CompiledStylesheet(outputCtx, stylesVar, dependencies, shim, stylesheet);\n  }\n\n  private _shimIfNeeded(style: string, shim: boolean): string {\n    return shim ? this._shadowCss.shimCssText(style, CONTENT_ATTR, HOST_ATTR) : style;\n  }\n}\n\nfunction getStylesVarName(component: CompileDirectiveMetadata | null): string {\n  let result = `styles`;\n  if (component) {\n    result += `_${identifierName(component.type)}`;\n  }\n  return result;\n}\n"]} |
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