cargdev/angular
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat(animations): provide aliases for :enter and :leave transitions (#11991)

Browse Source
This commit is contained in:
Matias Niemelä
2016-09-30 17:15:56 +01:00
committed by Chuck Jazdzewski
parent df1822fc2a
commit e884f4854d
2 changed files with 98 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
modules/@angular/compiler/src/animation/animation_parser.ts
View File

@ -132,9 +132,25 @@ function _parseAnimationStateTransition(
return new AnimationStateTransitionAst(transitionExprs, stepsAst);
}
function _parseAnimationAlias(alias: string, errors: AnimationParseError[]): string {
switch (alias) {
case ':enter':
return 'void => *';
case ':leave':
return '* => void';
default:
errors.push(
new AnimationParseError(`the transition alias value "${alias}" is not supported`));
return '* => *';
}
}
function _parseAnimationTransitionExpr(
eventStr: string, errors: AnimationParseError[]): AnimationStateTransitionExpression[] {
var expressions: any[] /** TODO #9100 */ = [];
var expressions: AnimationStateTransitionExpression[] = [];
if (eventStr[0] == ':') {
eventStr = _parseAnimationAlias(eventStr, errors);
}
var match = eventStr.match(/^(\*|[-\w]+)\s*(<?[=-]>)\s*(\*|[-\w]+)$/);
if (!isPresent(match) || match.length < 4) {
errors.push(new AnimationParseError(`the provided ${eventStr} is not of a supported format`));