4 examples of 'page screenshot puppeteer' in JavaScript

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export function screenShot (window) {
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  if (window) {
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    window.webContents.capturePage((image) => {
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      let opts = {
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        title: 'Save Screen Shot',
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        defaultPath: app.getPath('documents'),
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        filters: [
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          {name: 'PNG', extensions: ['png']},
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          {name: 'JPG', extensions: ['jpg']}
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        ]
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      }
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      let cb = (path) => {
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        if (path) {
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          let png = S(path.toLowerCase()).endsWith('png')
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          let buf = png ? image.toPNG() : image.toJPEG(100)
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          fs.writeFile(path, buf, 'binary', (wError) => {
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            if (wError) {
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              dialog.showErrorBox("Something went wrong :'(", 'Screen shot could not be saved to that path')
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            } else {
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              dialog.showMessageBox(window, {
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                type: 'info',
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                title: 'Done',
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                message: 'Screen shot saved',
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                buttons: ['Ok']
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              }, (r) => console.log(r))
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            }
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          })
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        }
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      }
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      dialog.showSaveDialog(window, opts, cb)
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    })
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  }
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}

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function takeScreenshot(driver) {
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    return GalenUtils.takeScreenshot(driver);
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}

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public async click(element: ElementHandle): Promise {
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  await element.click();
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}

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public async newPage(): Promise {
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    const page = await this.context.newPage();
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    return new PuppeteerPage(page);
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}