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feat(ivy): SVG now handled by ivy compiler (#23899)

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PR Close #23899
This commit is contained in:
Ben Lesh
2018-06-01 08:02:14 -07:00
committed by Victor Berchet
parent 51e9e64c5a
commit 1007d1ad27
9 changed files with 267 additions and 1 deletions
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6
packages/compiler/src/render3/r3_identifiers.ts
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@ -39,6 +39,12 @@ export class Identifiers {
static bind: o.ExternalReference = {name: 'ɵb', moduleName: CORE};
static namespace: o.ExternalReference = {name: 'ɵN', moduleName: CORE};
static namespaceHTML: o.ExternalReference = {name: 'ɵNH', moduleName: CORE};
static namespaceMathML: o.ExternalReference = {name: 'ɵNM', moduleName: CORE};
static namespaceSVG: o.ExternalReference = {name: 'ɵNS', moduleName: CORE};
static interpolation1: o.ExternalReference = {name: 'ɵi1', moduleName: CORE};
static interpolation2: o.ExternalReference = {name: 'ɵi2', moduleName: CORE};
static interpolation3: o.ExternalReference = {name: 'ɵi3', moduleName: CORE};

42
packages/compiler/src/render3/view/template.ts
View File

@ -19,6 +19,7 @@ import {HtmlParser} from '../../ml_parser/html_parser';
import {WhitespaceVisitor} from '../../ml_parser/html_whitespaces';
import {DEFAULT_INTERPOLATION_CONFIG} from '../../ml_parser/interpolation_config';
import * as o from '../../output/output_ast';
import {ExternalReference} from '../../output/output_ast';
import {ParseError, ParseSourceSpan} from '../../parse_util';
import {DomElementSchemaRegistry} from '../../schema/dom_element_schema_registry';
import {CssSelector, SelectorMatcher} from '../../selector';
@ -51,6 +52,7 @@ export class TemplateDefinitionBuilder implements t.Visitor<void>, LocalResolver
private _valueConverter: ValueConverter;
private _unsupported = unsupported;
private _bindingScope: BindingScope;
private _namespace = R3.namespaceHTML;
// Whether we are inside a translatable element (`<p i18n>... somewhere here ... </p>)
private _inI18nSection: boolean = false;
@ -220,6 +222,26 @@ export class TemplateDefinitionBuilder implements t.Visitor<void>, LocalResolver
this.instruction(this._creationCode, ngContent.sourceSpan, R3.projection, ...parameters);
}
/**
* Gets the namespace instruction function based on the current element
* @param ivyElementName An system element name, can include colons like :svg:svg
*/
getNamespaceInstruction(ivyElementName: string) {
switch (ivyElementName) {
case ':svg:svg':
return R3.namespaceSVG;
case ':math:math':
return R3.namespaceMathML;
default:
return this._namespace;
}
}
addNamespaceInstruction(nsInstruction: ExternalReference, element: t.Element) {
this._namespace = nsInstruction;
this.instruction(this._creationCode, element.sourceSpan, nsInstruction);
}
visitElement(element: t.Element) {
const elementIndex = this.allocateDataSlot();
const referenceDataSlots = new Map<string, number>();
@ -315,11 +337,20 @@ export class TemplateDefinitionBuilder implements t.Visitor<void>, LocalResolver
this._creationCode.push(...i18nMessages);
}
const isEmptyElement = element.outputs.length === 0 && element.children.length === 0;
const isEmptyElement = element.children.length === 0 && element.outputs.length === 0;
const implicit = o.variable(CONTEXT_NAME);
const wasInNamespace = this._namespace;
const currentNamespace = this.getNamespaceInstruction(element.name);
// If the namespace is changing now, include an instruction to change it
// during element creation.
if (currentNamespace !== wasInNamespace) {
this.addNamespaceInstruction(currentNamespace, element);
}
if (isEmptyElement) {
this.instruction(
this._creationCode, element.sourceSpan, R3.element, ...trimTrailingNulls(parameters));
@ -328,6 +359,14 @@ export class TemplateDefinitionBuilder implements t.Visitor<void>, LocalResolver
this._creationCode, element.sourceSpan, R3.elementStart,
...trimTrailingNulls(parameters));
// If the element happens to be an SVG <foreignObject>, we need to switch
// to the HTML namespace inside of it
if (element.name === ':svg:foreignObject') {
// NOTE(benlesh): this may cause extremem corner-case bugs if someone was to do something
// like <math>...<foreignObject></foreignObject>...</math>.
this.addNamespaceInstruction(R3.namespaceHTML, element);
}
// Generate Listeners (outputs)
element.outputs.forEach((outputAst: t.BoundEvent) => {
const elName = sanitizeIdentifier(element.name);
@ -384,6 +423,7 @@ export class TemplateDefinitionBuilder implements t.Visitor<void>, LocalResolver
}
// Restore the state before exiting this node
this._inI18nSection = wasInI18nSection;
this._namespace = wasInNamespace;
}
visitTemplate(template: t.Template) {

116
packages/compiler/test/render3/r3_compiler_compliance_spec.ts
View File

@ -66,6 +66,50 @@ describe('compiler compliance', () => {
expectEmit(result.source, template, 'Incorrect template');
});
it('should translate DOM structure for SVG', () => {
const files = {
app: {
'spec.ts': `
import {Component, NgModule} from '@angular/core';
@Component({
selector: 'my-component',
template: \`<div class="my-app" title="Hello"><svg><circle cx="50" cy="100" r="25"/></svg></div>\`
})
export class MyComponent {}
@NgModule({declarations: [MyComponent]})
export class MyModule {}
`
}
};
// The factory should look like this:
const factory = 'factory: function MyComponent_Factory() { return new MyComponent(); }';
// The template should look like this (where IDENT is a wild card for an identifier):
const template = `
const $c1$ = ['class', 'my-app', 'title', 'Hello'];
…
template: function MyComponent_Template(rf: IDENT, ctx: IDENT) {
if (rf & 1) {
$r3$.ɵE(0, 'div', $e0_attrs$);
$r3$.ɵNS();
$r3$.ɵE(1, ':svg:svg');
$r3$.ɵEe(2, ':svg:circle', $e2_attrs$);
$r3$.ɵe();
$r3$.ɵe();
}
}
`;
const result = compile(files, angularFiles);
expectEmit(result.source, factory, 'Incorrect factory');
expectEmit(result.source, template, 'Incorrect template');
});
it('should bind to element properties', () => {
const files = {
app: {
@ -1230,6 +1274,78 @@ describe('compiler compliance', () => {
expectEmit(source, MyComponentDefinition, 'Invalid component definition');
});
it('should support a let variable and reference for SVG', () => {
const files = {
app: {
...shared,
'spec.ts': `
import {Component, NgModule} from '@angular/core';
import {ForOfDirective} from './shared/for_of';
@Component({
selector: 'my-component',
template: \`<svg><g *for="let item of items"><circle></circle></g></svg>\`
})
export class MyComponent {
items = [{ data: 42 }, { data: 42 }];
}
@NgModule({
declarations: [MyComponent, ForOfDirective]
})
export class MyModule {}
`
}
};
// TODO(chuckj): Enforce this when the directives are specified
const ForDirectiveDefinition = `
static ngDirectiveDef = $r3$.ɵdefineDirective({
type: ForOfDirective,
selectors: [['', 'forOf', '']],
factory: function ForOfDirective_Factory() {
return new ForOfDirective($r3$.ɵinjectViewContainerRef(), $r3$.ɵinjectTemplateRef());
},
features: [$r3$.ɵNgOnChangesFeature(NgForOf)],
inputs: {forOf: 'forOf'}
});
`;
const MyComponentDefinition = `
const $_c0$ = ['for','','forOf',''];
…
static ngComponentDef = $r3$.ɵdefineComponent({
type: MyComponent,
selectors: [['my-component']],
factory: function MyComponent_Factory() { return new MyComponent(); },
template: function MyComponent_Template(rf:IDENT,ctx:IDENT){
if (rf & 1) {
$r3$.ɵNS();
$r3$.ɵE(0,':svg:svg');
$r3$.ɵC(1,MyComponent__svg_g_Template_1,null,$_c0$);
$r3$.ɵe();
}
if (rf & 2) { $r3$.ɵp(1,'forOf',$r3$.ɵb(ctx.items)); }
function MyComponent__svg_g_Template_1(rf:IDENT,ctx0:IDENT) {
if (rf & 1) {
$r3$.ɵE(0,':svg:g');
$r3$.ɵEe(1,':svg:circle');
$r3$.ɵe();
}
}
},
directives: [ForOfDirective]
});
`;
const result = compile(files, angularFiles);
const source = result.source;
// TODO(chuckj): Enforce this when the directives are specified
// expectEmit(source, ForDirectiveDefinition, 'Invalid directive definition');
expectEmit(source, MyComponentDefinition, 'Invalid component definition');
});
it('should support accessing parent template variables', () => {
const files = {
app: {