Add JavaScript push-button caption methods (#5505)

* Add push-button caption script methods

* Apply scripted caption with other field changes

* Complete caption field property initializers

* Apply scripted captions to every button widget

* Format caption regression test

* Cover caption getter errors and redo state

* Assert button caption undo state

* Reject button caption writes during format events

* Test empty push-button captions

* Validate push-button caption updates

* Keep no-widget caption test data alive

* Check caption clipping marker

---------

Co-authored-by: FredApps <153173854+FredApps@users.noreply.github.com>

parity/acrobat-features.toml

@@ -5363,8 +5363,8 @@ milestone = "M6"
 status = "partial"
 commands = ["tools.js_console"]
 tools = ["js_run"]
-evidence = ["crates/js/src/tests.rs::calculate_scripts_read_fields_and_set_the_value", "crates/engine/src/tests.rs::form_javascript_validates_calculates_and_formats", "crates/automation/tests/it/automation.rs::javascript_through_tools", "crates/js/src/tests.rs::an_xfa_form_sees_the_xfa_plugin_installed", "crates/js/src/tests.rs::a_plain_form_sees_the_xfa_version_but_not_installed", "crates/engine/src/tests.rs::scripts_in_an_xfa_form_see_the_xfa_plugin_installed", "crates/js/src/tests.rs::scand_allows_separators_between_fields_but_nothing_before_or_after_them", "crates/ui-egui/tests/it/forms.rs::a_form_button_opens_its_attached_instructions_in_a_new_tab", "crates/js/src/tests.rs::app_alert_keeps_its_title_icon_and_buttons", "crates/js/src/tests.rs::app_alert_reads_the_object_form", "crates/js/src/tests.rs::app_alert_falls_back_on_bad_icon_and_button_numbers", "crates/js/src/tests.rs::app_alert_titles_are_clipped_and_charged", "crates/ui-egui/tests/it/javascript.rs::every_message_a_script_shows_takes_the_toast_in_turn", "crates/js/src/tests.rs::widget_rect_reads_and_writes_a_four_number_array", "crates/engine/src/tests.rs::javascript_field_rect_moves_first_widget_and_undoes", "crates/engine/src/tests.rs::js_get_page_box_reads_effective_boxes_without_editing_the_document", "crates/js/src/tests.rs::get_page_box_returns_supported_boxes_in_rotated_user_space"]
-notes = "boa (pure Rust) with the forms object model: event, getField/Field (value, readonly, display, colours, items, check boxes, rect), this.getPageBox(cBox, nPage) for effective Media, Crop (default), Trim, Bleed and Art boxes in rotated user space, app (with execMenuItem for the side panels and Save As, from a button only, and Print where this.print() works), util.printf/printd/printx/scand (scand reads dates as another viewer was observed to, in AcroForm and XFA scripts), console, display, color, exportDataObject (from a button only: an attached PDF opens in a new tab, other files are offered to save, also as event.target in XFA scripts); xfa_version (3.5) in every document and xfa_installed in XFA forms, so their version check passes. field.rect reads and writes the first widget in PDF user space. no annotations, layers or dialogs (app.response returns null) yet, and no app.findComponent. app.alert keeps its title, icon (error, warning, question, status) and buttons (OK, OK/Cancel, Yes/No, Yes/No/Cancel), given in order or as one object; js_run reports them with each message, and the app shows every message in turn in the toast with its title and icon. Still missing: answers. Every app.alert returns 1 (OK), so a script is never told No or Cancel (#4291)."
+evidence = ["crates/js/src/tests.rs::calculate_scripts_read_fields_and_set_the_value", "crates/js/src/tests.rs::push_button_caption_methods_read_write_and_reject_other_faces", "crates/engine/src/tests.rs::form_javascript_validates_calculates_and_formats", "crates/automation/tests/it/automation.rs::javascript_through_tools", "crates/js/src/tests.rs::an_xfa_form_sees_the_xfa_plugin_installed", "crates/js/src/tests.rs::a_plain_form_sees_the_xfa_version_but_not_installed", "crates/engine/src/tests.rs::scripts_in_an_xfa_form_see_the_xfa_plugin_installed", "crates/js/src/tests.rs::scand_allows_separators_between_fields_but_nothing_before_or_after_them", "crates/ui-egui/tests/it/forms.rs::a_form_button_opens_its_attached_instructions_in_a_new_tab", "crates/js/src/tests.rs::app_alert_keeps_its_title_icon_and_buttons", "crates/js/src/tests.rs::app_alert_reads_the_object_form", "crates/js/src/tests.rs::app_alert_falls_back_on_bad_icon_and_button_numbers", "crates/js/src/tests.rs::app_alert_titles_are_clipped_and_charged", "crates/ui-egui/tests/it/javascript.rs::every_message_a_script_shows_takes_the_toast_in_turn", "crates/js/src/tests.rs::widget_rect_reads_and_writes_a_four_number_array", "crates/engine/src/tests.rs::javascript_field_rect_moves_first_widget_and_undoes", "crates/engine/src/tests.rs::js_get_page_box_reads_effective_boxes_without_editing_the_document", "crates/js/src/tests.rs::get_page_box_returns_supported_boxes_in_rotated_user_space", "crates/automation/tests/it/button_caption.rs::button_caption_can_be_changed_after_creation"]
+notes = "boa (pure Rust) with the forms object model: event, getField/Field (value, readonly, display, colours, items, check boxes, rect, and normal push-button captions through buttonGetCaption/buttonSetCaption), this.getPageBox(cBox, nPage) for effective Media, Crop (default), Trim, Bleed and Art boxes in rotated user space, app (with execMenuItem for the side panels and Save As, from a button only, and Print where this.print() works), util.printf/printd/printx/scand (scand reads dates as another viewer was observed to, in AcroForm and XFA scripts), console, display, color, exportDataObject (from a button only: an attached PDF opens in a new tab, other files are offered to save, also as event.target in XFA scripts); xfa_version (3.5) in every document and xfa_installed in XFA forms, so their version check passes. field.rect reads and writes the first widget in PDF user space. no annotations, layers or dialogs (app.response returns null) yet, and no app.findComponent. app.alert keeps its title, icon (error, warning, question, status) and buttons (OK, OK/Cancel, Yes/No, Yes/No/Cancel), given in order or as one object; js_run reports them with each message, and the app shows every message in turn in the toast with its title and icon. Still missing: answers. Every app.alert returns 1 (OK), so a script is never told No or Cancel (#4291)."
 
 [[feature]]
 id = "form.js-console"