- file_add_form_submit in core/
modules/ file/ file.pages.inc - Submit handler for the add file form.
- file_add_upload_step_scheme in core/
modules/ file/ file.pages.inc - Generate form fields for the third step in the add file wizard.
- file_field_settings_form in core/
modules/ file/ file.field.inc - Implements hook_field_settings_form().
- file_get_stream_wrappers in core/
includes/ file.inc - Provides Backdrop stream wrapper registry.
- file_is_writeable in core/
modules/ file/ file.module - Check if a file entity is considered writeable or not.
- file_manage_form in core/
modules/ file/ file.pages.inc - Page callback: Form constructor for the file manage form.
- filter_editor_file_upload_settings_form in core/
modules/ filter/ filter.admin.inc - Subform constructor to configure the text editor's file upload settings.
- filter_editor_image_upload_settings_form in core/
modules/ filter/ filter.admin.inc - Subform constructor to configure the text editor's image upload settings.
- image_field_settings_form in core/
modules/ image/ image.field.inc - Implements hook_field_settings_form().
- image_style_flush in core/
modules/ image/ image.module - Flush cached media for a style.
- stream_wrappers.inc in core/
includes/ stream_wrappers.inc - Backdrop stream wrapper interface.
- system_file_system_settings in core/
modules/ system/ system.admin.inc - Form builder; Configure the site file handling.