gitlab-org--gitlab-foss/spec/support/dropzone_helper.rb

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module DropzoneHelper
# Provides a way to perform `attach_file` for a Dropzone-based file input
#
# This is accomplished by creating a standard HTML file input on the page,
# performing `attach_file` on that field, and then triggering the appropriate
# Dropzone events to perform the actual upload.
#
# This method waits for the upload to complete before returning.
def dropzone_file(file_path)
# Generate a fake file input that Capybara can attach to
page.execute_script <<-JS.strip_heredoc
var fakeFileInput = window.$('<input/>').attr(
{id: 'fakeFileInput', type: 'file'}
).appendTo('body');
window._dropzoneComplete = false;
JS
# Attach the file to the fake input selector with Capybara
attach_file('fakeFileInput', file_path)
# Manually trigger a Dropzone "drop" event with the fake input's file list
page.execute_script <<-JS.strip_heredoc
var fileList = [$('#fakeFileInput')[0].files[0]];
var e = jQuery.Event('drop', { dataTransfer : { files : fileList } });
var dropzone = $('.div-dropzone')[0].dropzone;
dropzone.on('queuecomplete', function() {
window._dropzoneComplete = true;
});
dropzone.listeners[0].events.drop(e);
JS
# Wait until Dropzone's fired `queuecomplete`
loop until page.evaluate_script('window._dropzoneComplete === true')
end
end