90 lines
2.9 KiB
JavaScript
90 lines
2.9 KiB
JavaScript
import { isObj } from '../common/utils';
|
|
const getClassNames = (name) => ({
|
|
enter: `van-${name}-enter van-${name}-enter-active enter-class enter-active-class`,
|
|
'enter-to': `van-${name}-enter-to van-${name}-enter-active enter-to-class enter-active-class`,
|
|
leave: `van-${name}-leave van-${name}-leave-active leave-class leave-active-class`,
|
|
'leave-to': `van-${name}-leave-to van-${name}-leave-active leave-to-class leave-active-class`
|
|
});
|
|
const requestAnimationFrame = (cb) => setTimeout(cb, 1000 / 60);
|
|
export const transition = function (showDefaultValue) {
|
|
return Behavior({
|
|
properties: {
|
|
customStyle: String,
|
|
show: {
|
|
type: Boolean,
|
|
value: showDefaultValue,
|
|
observer: 'observeShow'
|
|
},
|
|
duration: {
|
|
type: [Number, Object],
|
|
value: 300,
|
|
observer: 'observeDuration'
|
|
},
|
|
name: {
|
|
type: String,
|
|
value: 'fade',
|
|
observer: 'updateClasses'
|
|
}
|
|
},
|
|
data: {
|
|
type: '',
|
|
inited: false,
|
|
display: false,
|
|
classNames: getClassNames('fade')
|
|
},
|
|
attached() {
|
|
if (this.data.show) {
|
|
this.show();
|
|
}
|
|
},
|
|
methods: {
|
|
observeShow(value) {
|
|
if (value) {
|
|
this.show();
|
|
}
|
|
else {
|
|
this.leave();
|
|
}
|
|
},
|
|
updateClasses(name) {
|
|
this.set({
|
|
classNames: getClassNames(name)
|
|
});
|
|
},
|
|
show() {
|
|
const { classNames, duration } = this.data;
|
|
this.set({
|
|
inited: true,
|
|
display: true,
|
|
classes: classNames.enter,
|
|
currentDuration: isObj(duration) ? duration.enter : duration
|
|
}).then(() => {
|
|
requestAnimationFrame(() => {
|
|
this.set({
|
|
classes: classNames['enter-to']
|
|
});
|
|
});
|
|
});
|
|
},
|
|
leave() {
|
|
const { classNames, duration } = this.data;
|
|
this.set({
|
|
classes: classNames.leave,
|
|
currentDuration: isObj(duration) ? duration.leave : duration
|
|
}).then(() => {
|
|
requestAnimationFrame(() => {
|
|
this.set({
|
|
classes: classNames['leave-to']
|
|
});
|
|
});
|
|
});
|
|
},
|
|
onTransitionEnd() {
|
|
if (!this.data.show) {
|
|
this.set({ display: false });
|
|
}
|
|
}
|
|
}
|
|
});
|
|
};
|