feat: pdf block

.coveragerc

@@ -1,3 +1,5 @@
 [run]
 branch = True
-source = xblocks_contrib
+source =
+    xblocks_contrib
+    xblock_pdf

CHANGELOG.rst

@@ -13,6 +13,14 @@ Change Log
 
 Unreleased
 **********
+0.11.0 - 2026-01-26
+**********************************************
+
+Added
+=====
+
+* Implemented PDF Block, extracted from third party plugin.
+
 0.6.0 – 2025-08-13
 **********************************************
 

README.rst

@@ -21,6 +21,7 @@ These are the XBlocks being moved here, and each of their statuses:
 * ``word_cloud`` -- Ready to Use
 * ``annotatable`` -- Ready to Use
 * ``lti`` -- In Development
+* ``pdf`` -- Done
 * ``html`` -- Ready to Use
 * ``discussion`` -- Placeholder
 * ``problem`` -- In Development

package.json

@@ -1,7 +1,8 @@
 {
   "private": true,
   "workspaces": [
-    "xblocks_contrib/*/static"
+    "xblocks_contrib/*/static",
+    "xblock_pdf/*/static"
   ],
   "scripts": {
     "test": "npm run test --workspaces",

setup.py

@@ -175,7 +175,7 @@ def package_data(pkg, sub_roots):
     author_email="oscm@openedx.org",
     url="https://github.com/openedx/xblocks-contrib",
     packages=find_packages(
-        include=["xblocks_contrib", "xblocks_contrib.*"],
+        include=["xblocks_contrib", "xblocks_contrib.*", "xblock_pdf"],
         exclude=["*tests"],
     ),
     include_package_data=True,
@@ -204,7 +204,18 @@ def package_data(pkg, sub_roots):
             "_problem_extracted = xblocks_contrib:ProblemBlock",
             "_video_extracted = xblocks_contrib:VideoBlock",
             "_word_cloud_extracted = xblocks_contrib:WordCloudBlock",
+            # 'Done' XBlocks-- ones that are ready for general use today,
+            # and have been migrated fully from edx-platform or their original
+            # repository.
+            "pdf = xblock_pdf:PDFBlock",
         ]
     },
-    package_data=package_data("xblocks_contrib", ["static", "public", "templates"]),
+    package_data={
+        **package_data(
+            "xblocks_contrib", ["static", "public", "templates"],
+        ),
+        **package_data(
+            "xblock_pdf", ["static", "templates"],
+        ),
+    },
 )

tox.ini

@@ -16,7 +16,7 @@ match-dir = (?!migrations)
 [pytest]
 DJANGO_SETTINGS_MODULE = xblocks_contrib.test_settings
 django_find_project = false
-addopts = --cov xblocks_contrib --cov-report term-missing --cov-report xml
+addopts = --cov xblocks_contrib --cov xblocks_pdf --cov-report term-missing --cov-report xml
 norecursedirs = .* docs requirements site-packages
 
 [testenv]
@@ -62,8 +62,8 @@ allowlist_externals =
 deps =
     -r{toxinidir}/requirements/quality.txt
 commands =
-    pylint xblocks_contrib
-    pycodestyle xblocks_contrib
-    pydocstyle xblocks_contrib
-    isort --check-only --diff xblocks_contrib
+    pylint xblocks_contrib xblock_pdf
+    pycodestyle xblocks_contrib xblock_pdf
+    pydocstyle xblocks_contrib xblock_pdf
+    isort --check-only --diff xblocks_contrib xblock_pdf
     make selfcheck

xblock_pdf/__init__.py

@@ -0,0 +1,3 @@
+"""Init for PDFBlock."""
+
+from .pdf import PDFBlock

xblock_pdf/pdf.py

@@ -0,0 +1,135 @@
+"""pdfXBlock main Python class."""
+
+from django.utils.translation import gettext_noop as _
+from xblock.core import XBlock
+from xblock.fields import Boolean, Scope, String
+from xblock.fragment import Fragment
+from xblock.utils.resources import ResourceLoader
+
+from .utils import bool_from_str, is_all_download_disabled
+
+resource_loader = ResourceLoader(__name__)
+
+
+@XBlock.needs('i18n')
+class PDFBlock(XBlock):
+    """PDF XBlock. Allows authors to embed PDFs in their courses."""
+
+    icon_class = "other"
+
+    display_name = String(
+        display_name=_("Display Name"),
+        default=_("PDF"),
+        scope=Scope.settings,
+        help=_("This name appears in the horizontal navigation at the top of the page.")
+    )
+
+    url = String(
+        display_name=_("PDF URL"),
+        default=_("https://tutorial.math.lamar.edu/pdf/Trig_Cheat_Sheet.pdf"),
+        scope=Scope.content,
+        help=_("The URL for your PDF.")
+    )
+
+    allow_download = Boolean(
+        display_name=_("PDF Download Allowed"),
+        default=True,
+        scope=Scope.content,
+        help=_("Display a download button for this PDF.")
+    )
+
+    source_text = String(
+        display_name=_("Source document button text"),
+        default="",
+        scope=Scope.content,
+        help=_(
+            "Add a download link for the source file of your PDF. "
+            "Use it for example to provide the PowerPoint file used to create this PDF."
+        )
+    )
+
+    source_url = String(
+        display_name=_("Source document URL"),
+        default="",
+        scope=Scope.content,
+        help=_(
+            "Add a download link for the source file of your PDF. "
+            "Use it for example to provide the PowerPoint file used to create this PDF."
+        )
+    )
+
+    def student_view(self, context=None):
+        """Primary view of the XBlock, shown to students when viewing courses."""
+        context = {
+            'display_name': self.display_name,
+            'url': self.url,
+            'allow_download': self.allow_download,
+            'disable_all_download': is_all_download_disabled(),
+            'source_text': self.source_text,
+            'source_url': self.source_url,
+        }
+        html = resource_loader.render_django_template(
+            'templates/html/pdf_view.html',
+            context=context,
+            i18n_service=self.runtime.service(self, "i18n"),
+        )
+
+        event_type = 'edx.pdf.loaded'
+        event_data = {
+            'url': self.url,
+            'source_url': self.source_url,
+        }
+        self.runtime.publish(self, event_type, event_data)
+        frag = Fragment(html)
+        frag.add_javascript(resource_loader.load_unicode("static/js/pdf_view.js"))
+        frag.initialize_js('pdfXBlockInitView')
+        return frag
+
+    def studio_view(self, context=None):
+        """
+        Secondary view of the XBlock.
+
+        Shown to teachers when editing the XBlock.
+        """
+        context = {
+            'display_name': self.display_name,
+            'url': self.url,
+            'allow_download': self.allow_download,
+            'disable_all_download': is_all_download_disabled(),
+            'source_text': self.source_text,
+            'source_url': self.source_url
+        }
+        html = resource_loader.render_django_template(
+            'templates/html/pdf_edit.html',
+            context=context,
+            i18n_service=self.runtime.service(self, "i18n"),
+        )
+        frag = Fragment(html)
+        frag.add_javascript(resource_loader.load_unicode("static/js/pdf_edit.js"))
+        frag.initialize_js('pdfXBlockInitEdit')
+        return frag
+
+    @XBlock.json_handler
+    def on_download(self, data, suffix=''):  # pylint: disable=unused-argument
+        """Download file event handler."""
+        event_type = 'edx.pdf.downloaded'
+        event_data = {
+            'url': self.url,
+            'source_url': self.source_url,
+        }
+        self.runtime.publish(self, event_type, event_data)
+
+    @XBlock.json_handler
+    def save_pdf(self, data, suffix=''):  # pylint: disable=unused-argument
+        """Save handler."""
+        self.display_name = data['display_name']
+        self.url = data['url']
+
+        if not is_all_download_disabled():
+            self.allow_download = bool_from_str(data['allow_download'])
+            self.source_text = data['source_text']
+            self.source_url = data['source_url']
+
+        return {
+            'result': 'success',
+        }

xblock_pdf/static/js/pdf_edit.js

@@ -0,0 +1,28 @@
+/* Javascript for pdfXBlock. */
+function pdfXBlockInitEdit(runtime, element) {
+    $(element).find('.action-cancel').bind('click', function () {
+        runtime.notify('cancel', {});
+    });
+
+    $(element).find('.action-save').bind('click', function () {
+        var data = {
+            'display_name': $('#pdf_edit_display_name').val(),
+            'url': $('#pdf_edit_url').val(),
+            'allow_download': $('#pdf_edit_allow_download').val() || '',
+            'source_text': $('#pdf_edit_source_text').val() || '',
+            'source_url': $('#pdf_edit_source_url').val() || ''
+        };
+
+        runtime.notify('save', { state: 'start' });
+
+        var handlerUrl = runtime.handlerUrl(element, 'save_pdf');
+        $.post(handlerUrl, JSON.stringify(data)).done(function (response) {
+            if (response.result === 'success') {
+                runtime.notify('save', { state: 'end' });
+            }
+            else {
+                runtime.notify('error', { msg: response.message });
+            }
+        });
+    });
+}

xblock_pdf/static/js/pdf_view.js

@@ -0,0 +1,17 @@
+/* Javascript for pdfXBlock. */
+function pdfXBlockInitView(runtime, element) {
+    /* Weird behaviour :
+     * In the LMS, element is the DOM container.
+     * In the CMS, element is the jQuery object associated*
+     * So here I make sure element is the jQuery object */
+    if (element.innerHTML) {
+        element = $(element);
+    }
+
+    $(function () {
+        element.find('.pdf-download-button').on('click', function () {
+            var handlerUrl = runtime.handlerUrl(element, 'on_download');
+            $.post(handlerUrl, '{}');
+        });
+    });
+}

xblock_pdf/templates/html/pdf_edit.html

@@ -0,0 +1,58 @@
+{% load i18n %}
+<div class="wrapper-comp-settings editor-with-buttons is-active" id="settings-tab">
+  <ul class="list-input settings-list">
+
+    <li class="field comp-setting-entry is-set">
+      <div class="wrapper-comp-setting">
+        <label class="label setting-label" for="pdf_edit_display_name">{% trans "Name" %}</label>
+        <input class="input setting-input" id="pdf_edit_display_name" value="{{ display_name }}" type="text">
+      </div>
+      <span class="tip setting-help">{% trans "This name appears in the horizontal navigation at the top of the page." %}</span>
+    </li>
+
+    <li class="field comp-setting-entry is-set">
+      <div class="wrapper-comp-setting">
+        <label class="label setting-label" for="pdf_edit_url">{% trans "PDF URL" %}</label>
+        <input class="input setting-input" id="pdf_edit_url" value="{{ url }}" type="text">
+      </div>
+      <span class="tip setting-help">{% trans "The URL for your PDF." %}</span>
+    </li>
+
+    {% if not disable_all_download %}
+    <li class="field comp-setting-entry is-set">
+      <div class="wrapper-comp-setting">
+        <label class="label setting-label" for="pdf_edit_allow_download">{% trans "PDF Download Allowed" %}</label>
+        <select class="input setting-input" id="pdf_edit_allow_download">
+          <option value="True" {% if allow_download %}selected{% endif %}>{% trans "True" %}</option>
+          <option value="False" {% if not allow_download %}selected{% endif %}>{% trans "False" %}</option>
+        </select>
+      </div>
+        <span class="tip setting-help">{% trans "Display a download link to this PDF for convenience. Please note that even if this is disabled, the embedded PDF viewer may still display its own download button." %}</span>
+    </li>
+
+    <li class="field comp-setting-entry is-set">
+      <div class="wrapper-comp-setting">
+        <label class="label setting-label" for="pdf_edit_source_text">{% trans "Source document button text" %}</label>
+        <input class="input setting-input" id="pdf_edit_source_text" value="{{ source_text }}" type="text" placeholder="{% trans 'Default : Download the source document' %}">
+      </div>
+      <div class="wrapper-comp-setting">
+        <label class="label setting-label" for="pdf_edit_source_url">{% trans "Source document URL" %}</label>
+        <input class="input setting-input" id="pdf_edit_source_url" value="{{ source_url }}" type="text">
+      </div>
+      <span class="tip setting-help">{% trans "Add a download link for the source file of your PDF. Use it for example to provide the PowerPoint file used to create this PDF." %}</span>
+    </li>
+    {% endif %}
+
+  </ul>
+
+  <div class="xblock-actions">
+    <ul>
+      <li class="action-item">
+        <a href="#" class="button action-primary action-save">{% trans "Save" %}</a>
+      </li>
+      <li class="action-item">
+        <a href="#" class="button action-cancel">{% trans "Cancel" %}</a>
+      </li>
+    </ul>
+  </div>
+</div>

xblock_pdf/templates/html/pdf_view.html

@@ -0,0 +1,22 @@
+{% load i18n %}
+<div class="pdf_block">
+  <h2>{{ display_name }}</h2>
+  <iframe src="{{ url }}" type="application/pdf" width="100%" height="600">
+
+  </iframe>
+  {% if not disable_all_download %}
+  <ul>
+    {% if allow_download %}
+      <li class="pdf-download-button">
+          <a href="{{ url }}" target="_blank" rel="noopener" download>{% trans "Download the PDF" %}</a>
+          (Right click or long press on the download link and select the "Save as" option to download. Clicking on the link might open it in a tab.)
+      </li>
+    {% endif %}
+    {% if source_url != "" %}
+    <li class="pdf-download-button">
+      <a href="{{ source_url }}" download>{% if source_text == "" %}{% trans "Download the source document" %}{% else %}{{ source_text }}{% endif %}</a>
+    </li>
+    {% endif %}
+  </ul>
+  {% endif %}
+</div>