I install Newsletter plugin of impresspage,
in widget files i couldn't found way to change text of button "SubScribe" and edit plugin html view
Firstly, it's "ImpressPages" (camelCase and plural).
HTML output of widgets is controlled with skins (https://www.impresspages.org/docs/widgets). By default is in \Plugin\Newsletter\Widget\Newsletter\skin\default.php
. You can change it directly or override in your theme.
If done correctly, all strings are translatable. Install a plugin (http://market.impresspages.org/plugins/AsdTranslate) for easy translations, look for required string and translate/change it.
Another option is to change the source. Check where that string comes from. Here's where form comes from:
\Plugin\Newsletter\Model::createForm();
Open Model.php
, search for createForm()
method and look for submit field. And do what you want with it.