While we demonstrate how you can add local file picker to the Image dialog, in order for it to be useful in the real-world scenario, you should also enable image uploading functionality - as a way to transport those local images to a server.
Note: The following code relies on
URL.createObjectURL(). To check the level of support for this feature across modern browsers, visit this link.
You might also consider our MoxieManager module, which can hook onto
file_picker_callback and provide feature-rich file manager UI right in the popup (check a demo here). With accompanying plugins it is possible to pick files from Dropbox, Google Drive and much more.
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