Paul Frazee
89 lines
1.9 KiB
TypeScript
89 lines
1.9 KiB
TypeScript
// import {Share} from 'react-native'
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// import * as Toast from 'view/com/util/Toast'
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export interface DownloadAndResizeOpts {
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uri: string
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width: number
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height: number
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mode: 'contain' | 'cover' | 'stretch'
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maxSize: number
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timeout: number
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}
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export interface Image {
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path: string
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mime: string
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size: number
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width: number
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height: number
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}
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export async function downloadAndResize(_opts: DownloadAndResizeOpts) {
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// TODO
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throw new Error('TODO')
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}
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export interface ResizeOpts {
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width: number
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height: number
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mode: 'contain' | 'cover' | 'stretch'
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maxSize: number
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}
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export async function resize(
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_localUri: string,
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_opts: ResizeOpts,
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): Promise<Image> {
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// TODO
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throw new Error('TODO')
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}
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export async function compressIfNeeded(
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img: Image,
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maxSize: number,
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): Promise<Image> {
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if (img.size > maxSize) {
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// TODO
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throw new Error(
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"This image is too large and we haven't implemented compression yet -- sorry!",
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)
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}
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return img
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}
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export interface Dim {
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width: number
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height: number
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}
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export function scaleDownDimensions(dim: Dim, max: Dim): Dim {
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if (dim.width < max.width && dim.height < max.height) {
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return dim
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}
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let wScale = dim.width > max.width ? max.width / dim.width : 1
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let hScale = dim.height > max.height ? max.height / dim.height : 1
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if (wScale < hScale) {
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return {width: dim.width * wScale, height: dim.height * wScale}
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}
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return {width: dim.width * hScale, height: dim.height * hScale}
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}
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export async function saveImageModal(_opts: {uri: string}) {
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// TODO
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throw new Error('TODO')
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}
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export async function moveToPremanantPath(path: string) {
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return path
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}
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export async function getImageDim(path: string): Promise<Dim> {
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var img = document.createElement('img')
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const promise = new Promise((resolve, reject) => {
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img.onload = resolve
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img.onerror = reject
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})
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img.src = path
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await promise
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return {width: img.width, height: img.height}
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}
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