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improve styling for Bootstrap 5

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Added Drag and Drop interface for feedback files

- When grading a student, feedback files can be added via drag and drop

- Caution was spent to avoid potentially slow refresh operations on

log exam protocols. All interactions use AJAX and update the

DOM tree directly

- The feedback files are displayed as thumbnails

- When permissions allow, the thumbnail files can be directly viewed and/or deleted

- Supports Bootstrap3 and Bootstrap 5

- Support for composite questions.

- bumped version number to 5.10.1d43

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improve styling of SC and MC questions with bootstrap5

Previously, the labels were written in the wrong line.

improve styling of horizonal form fields (many thanks to Monika Andergassen)

beautify output with changed rendering in Firefox 96

Improved configurability of inclass exam

- added modal window for showing all configuration options

- depending on the state of an exam (whether students have stated

working on the exam or not) different options can be

altered. E.g. the grading scheme can be adjusted at any time, since

it is not visible to students prior to exam review.

- improved configurability of form-fields:

. new feature: fc_repository for shared definitions

(can be reused in the same configuration on multiple occasions)

. when form-constraints are defined with an empty short-spec,

the system tries to look this up from the fc_repository.

- extended answer manager:

. new method: student_submissions_exist

. renamed methods

. "student_submissions" -> "submissions"

(since result my include as well test run results)

. "get_answers" -> "get_answer_attributes"

to better distinguish from "submissions"

- base "merge_constraints" on dicts

- prefer forwarder over instance variable for referring

the question manager(QM)

- extended Message keys with "Configuration"

- added missing German translations in message keys

- bump version to 5.10.1d17

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improve styling in exam protocol

Added support for user-supplied grading schemes

Grading schemes provide a means to map achieved percentages to a numeric grade.

In the current versions, a fixed number of 5 grades is supported.

A grading scheme consists of a grounding scheme and grading boundaries.

- A grading scheme can be selected at exam definition time

- Lecturers can define their own grading schemes and reuse these between exams

- Available grounding schemes:

* no rounding (recommended for small exams, e.g. 5 minutes or 2 points)

* by percent (the calculated percentages are rounded to the provided number of digits)

* by points (the calculated points are rounded to the provided number of digits)

- The grounding precision can be defined by the user (e.g. to 2 digits)

- The grading boundaries represent percentages boundaries necessary for a certain grade

- When selecting no grading scheme, no grading information is provided in the exam protocol

(just percentages)

More changes:

- allow grading also, when student has not submitted the exam

- added percentage information in the grading-box (esp. useful for composite questions)

- renamed predefined grading schemes to more neutral terms

- provide easy-to-type names for question-manager, answer-manager and form-loader

- new utility for more robust list-comparions

- defined validating form-field type for grading boundaries

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Added support for manual grading and individual feedback

- Lecturers can provide points and feedback comments

directly via exam protocol

- Grading is allowed, when student has submitted the exam or

the exam is not open

- Composite questions are graded at the sub-question level

- Manual grading have a higher priority than automatic grades

- Manual grading/comments can be undone by clearingfield

(showing then missing points, automated computed points, ...)

- Grades and comments are included in the exam review for

students ("Einsicht").

- Grading interactions are implemented as AJAX calls

(no need for redrawing the exam protocol, immediate feedback)

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minor styling improvements

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- fix collateral damage from earlier submissions download change (error: can't read "__form_fields")

- improve styling (many thanks to Monika Andergassen and Stephan Adelsberger)

for composite questions in 2-col layout

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added CSS properties for adding scrollbars to overly large exam texts. Not sure, these are always wanted.

xowf.info catalog/xowf.en_US.ISO-8859-1.xml tcl/test-item-procs.tcl www/resources/test-item.css

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preserve colors for printing "match-contains" and "match-contains-not"

Background: bootstrap.css removes all backgrounds per default.

added support for pagination buttons, visited buttons and flagged buttons

  1. … 6 more files in changeset.
moved answer status into answer_panel (similar to downstream),

made sensitivity of inspect links automatically updating (like downstream)

made templating easier and refactored code

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added support for gui and multiple correct-when clauses

bump version number to 5.10.0d32

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Updates for upload_interaction:

- allow lecturer to specify number of file, which can be uploaded

- handle singular/plural labels for attachment/attachments

- handle singular/plural labels for Students submitting files

- styling improvements

- bump version number to get as well message catalog updates from xowiki

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added a print button the works with event handler also in HTML streaming mode

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new form-field class: boolean_checkbox

behaves like boolean, but provdes just a single checkbox instead of yes/no radio in "boolean"

the output is full compatible with "boolean".

The boolean_checkbox is used in test-item procs for a more slim correct/incorrect specification

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- added detailed proctoring options

- accordeon style exam options

- allwo restart in "done" state only for SWAs

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Replace xowf proctoring implementation with that coming from proctoring-support

TODO: nicer detection of whether proctoring-support package is actually installed

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add proctoring code as used by xowf

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file proctoring.js was initially added on branch oacs-5-10.

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file gif.worker.js.map was initially added on branch oacs-5-10.

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file gif.worker.js was initially added on branch oacs-5-10.

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    ./proctoring/gif.worker.js
file gif.js.map was initially added on branch oacs-5-10.

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    ./proctoring/gif.js.map
file gif.js was initially added on branch oacs-5-10.

added support for inclass-exam for scheduled opening and closing of exams

  1. … 6 more files in changeset.
no need to limit the width of a form label in vertical forms