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feat: add new component **GlobalStatus** to the lib
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97
packages/dnb-ui-lib/src/components/global-status/AnimationHelper.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,97 @@ | ||
| /** | ||
| * Animation helper | ||
| * | ||
| * NB: For now only used in GlobalStatus, | ||
| * but can be of interest to use in other components as well | ||
| * | ||
| */ | ||
|
|
||
| export default class Animation { | ||
| stack = [] | ||
| events = [] | ||
|
|
||
| // Main methodes | ||
| add(animation) { | ||
| if (!animation.type) { | ||
| console.warn('You should define an animation type.') | ||
| } | ||
| if (this.isInProgress() && animation.type === this.stack[0].type) { | ||
| return | ||
| } | ||
| this.stack.push(animation) | ||
|
|
||
| this.runNext() | ||
| } | ||
| unbind() { | ||
| clearTimeout(this._durationId) | ||
| clearTimeout(this._delayId) | ||
| this.stack = [] | ||
| this.events = [] | ||
| } | ||
|
|
||
| // Helpers | ||
| getCurrent() { | ||
| return this.isInProgress() ? this.stack[0] : null | ||
| } | ||
| isEmpty() { | ||
| return this.stack.length === 0 | ||
| } | ||
| isInProgress() { | ||
| return this.stack.length > 0 | ||
| } | ||
|
|
||
| // Internals | ||
| runNext() { | ||
| if (this.stack.length > 1) { | ||
| return | ||
| } | ||
| const animation = this.stack[0] | ||
|
|
||
| if (!animation) { | ||
| return | ||
| } | ||
| const run = () => { | ||
| if (typeof animation.onStart === 'function') { | ||
| animation.onStart(animation) | ||
| } | ||
| this.runGlobalEvents(animation, 'onStart') | ||
| const next = () => { | ||
| // now, remove the one we have processed | ||
| this.stack = this.stack.filter(a => a !== animation) | ||
| if (typeof animation.onComplete === 'function') { | ||
| animation.onComplete(animation) | ||
| } | ||
| this.runGlobalEvents(animation, 'onComplete') | ||
| this.runNext() | ||
| } | ||
| if (animation.duration > 0) { | ||
| this._durationId = setTimeout(next, animation.duration) | ||
| } else { | ||
| next() | ||
| } | ||
| } | ||
| if (animation.delay > 0) { | ||
| this._delayId = setTimeout(run, animation.delay) | ||
| } else { | ||
| run() | ||
| } | ||
|
|
||
| return animation | ||
| } | ||
|
|
||
| // Global events | ||
| onStart(callback) { | ||
| this.events.push({ callback, type: 'onStart' }) | ||
| } | ||
| onComplete(callback) { | ||
| this.events.push({ callback, type: 'onComplete' }) | ||
| } | ||
| runGlobalEvents(animation, type) { | ||
| this.events.forEach(event => { | ||
| if (type === event.type && typeof event.callback === 'function') { | ||
| event.callback(animation) | ||
| } | ||
| }) | ||
| this.events = [] | ||
| } | ||
| } |
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