I have a transition between states. The transition receives an array and the third item in the array is the style
function that should apply 'background-color' : 'red'
.
For some reason Angular doesn't apply the style unless I declare it with camel case: backgroundColor: 'red'
.
Is this a bug or it's expected behavior?
Here's the project on stackblitz
Here's the code snippet of declared animations:
animations: [
trigger('numberEnteredState', [
state(
'unselected',
style({
border: '1px solid black',
padding: '5px',
})
),
state(
'selected',
style({
border: '2px solid blue',
padding: '4px',
'background-color': 'lightblue',
})
),
transition('unselected => selected', [
style({
border: '2px solid black',
padding: '4px',
}),
animate('3000ms'),
style({
'background-color': 'red',
}),
animate('3000ms'),
]),
]),
],
})
The same style()
function with css property declared within quotation marks works just fine inside the animation state:
state(
'selected',
style({
border: '2px solid blue',
padding: '4px',
'background-color': 'lightblue',
})
),
CodePudding user response:
As @Naveen stated - Documentation:
Use the style() function to define a set of styles to associate with a given state name. You must use camelCase for style attributes that contain dashes, such as backgroundColor or wrap them in quotes, such as 'background-color'
Updated:
However, when you define a background-color
property in the initial state it seems to recognize that in the transition -> styles. This is very inconsistent behavior. This does seem like a bug.
trigger('numberEnteredState', [
state(
'unselected',
style({
border: '1px solid black',
padding: '5px',
'background-color': 'white',
})
),
state(
'selected',
style({
border: '2px solid blue',
padding: '4px',
'background-color': 'lightblue',
})
),
transition('unselected => selected', [
style({
border: '2px solid green',
padding: '4px',
}),
animate('3000ms'),
style({
'background-color': 'red',
}),
state(
'selected',
style({
border: '2px solid blue',
padding: '4px',
backgroundColor: 'lightblue',
})
),
animate('3000ms'),
]),
]),
],