electron-progressbar

The library draws a progress bar in its own Electron BrowserWindow and, if you want, mirrors progress onto the taskbar through setProgressBar, so you can check on a job without leaving the current window.

electron-progressbar advertises an easy-to-use and highly customizable API for showing and manipulating progress bars in Electron apps. Appearance can be changed with CSS, along with the text and any other visible information. The BrowserWindow that holds the bar is customizable too. A long options list covers details like whether the bar is indeterminate, its initial and maximum value, whether it closes on completion or aborts on error, the window title, the displayed text, the detail line, a debug flag, and a lang attribute for the page.

The README draws a clean line between the two modes. A determinate bar works when the application can accurately calculate how long a task will take, and it fires a progress event as the value changes. An indeterminate bar is for when the application cannot estimate the duration, which is why the README recommends it for tasks without a predictable length. For indeterminate bars, the completed event only fires when something calls the complete method manually; otherwise the bar keeps showing.

Beyond the window itself, the library can show progress in the taskbar using the BrowserWindow setProgressBar method, so a user sees how far a job has come without switching to the window. A customHTML option, flagged as experimental, hands over full control of the bar's rendering when the usual options are not enough. Whatever you build, you must wait for the ready event from the BrowserWindow before creating a bar, since the bar lives inside it, and you can pass the Electron app in as a second constructor parameter.

• Source 1 · Project repository
• Source 2 · README