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chore(convert): improve HTML Jinja2 template #443

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chore(convert): improve HTML Jinja2 template #443

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27cf105
chore(convert): improve HTML Jinja2 template
jeertmans May 27, 2024
f3d8065
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] May 27, 2024
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4 changes: 3 additions & 1 deletion manim_slides/convert.py
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Original file line number Diff line number Diff line change
Expand Up @@ -430,7 +430,9 @@ def prefix(i: int) -> str:
dest.parent.mkdir(parents=True, exist_ok=True)

with open(dest, "w") as f:
revealjs_template = Template(self.load_template())
revealjs_template = Template(
self.load_template(), trim_blocks=True, lstrip_blocks=True
)

options = self.dict()
options["assets_dir"] = assets_dir
Expand Down
158 changes: 51 additions & 107 deletions manim_slides/templates/revealjs.html
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Original file line number Diff line number Diff line change
Expand Up @@ -19,82 +19,75 @@
<body>
<div class="reveal">
<div class="slides">
{%- for presentation_config in presentation_configs -%}
{% set outer_loop = loop %}
{%- for slide_config in presentation_config.slides -%}
{%- if data_uri -%}
{% for presentation_config in presentation_configs %}
{%- set outer_loop = loop -%}
{% for slide_config in presentation_config.slides %}
{% if data_uri %}
{% set file = file_to_data_uri(slide_config.file) %}
{%- else -%}
{% else %}
{% set file = assets_dir / slide_config.file.name %}
{%- endif -%}
{% endif %}
<section
data-background-size={{ background_size }}
data-background-color="{{ presentation_config.background_color }}"
data-background-video="{{ file }}"
{% if loop.index == 1 and outer_loop.index == 1 -%}
{% if loop.index == 1 and outer_loop.index == 1 %}
data-background-video-muted
{%- endif -%}
{% if slide_config.loop -%}
{% endif %}
{% if slide_config.loop %}
data-background-video-loop
{%- endif -%}
{% if slide_config.auto_next -%}
{% endif %}
{% if slide_config.auto_next %}
data-autoslide="{{ get_duration_ms(slide_config.file) }}"
{%- endif -%}>
{% if slide_config.notes != "" -%}
{% endif %}
>
{% if slide_config.notes != "" %}
<aside class="notes" data-markdown>{{ slide_config.notes }}</aside>
{%- endif %}
{% endif %}
</section>
{%- endfor -%}
{%- endfor -%}
{% endfor %}
{% endfor %}
</div>
</div>

<script src="https://cdnjs.cloudflare.com/ajax/libs/reveal.js/{{ reveal_version }}/reveal.min.js"></script>

<!-- To include plugins, see: https://revealjs.com/plugins/ -->

{% if has_notes -%}
{% if has_notes %}
<script src="https://cdnjs.cloudflare.com/ajax/libs/reveal.js/{{ reveal_version }}/plugin/markdown/markdown.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/reveal.js/{{ reveal_version }}/plugin/notes/notes.min.js"></script>
{%- endif -%}
{% endif %}

<!-- <script src="index.js"></script> -->
<script>
Reveal.initialize({
{% if has_notes -%}
{% if has_notes %}
/// The list of RevealJS plugins.
plugins: [ RevealMarkdown, RevealNotes ],
{%- endif %}
{% endif %}
// The "normal" size of the presentation, aspect ratio will
// be preserved when the presentation is scaled to fit different
// resolutions. Can be specified using percentage units.
width: {{ width }},
height: {{ height }},

// Factor of the display size that should remain empty around
// the content
margin: {{ margin }},

// Bounds for smallest/largest possible scale to apply to content
minScale: {{ min_scale }},
maxScale: {{ max_scale }},

// Display presentation control arrows
controls: {{ controls }},

// Help the user learn the controls by providing hints, for example by
// bouncing the down arrow when they first encounter a vertical slide
controlsTutorial: {{ controls_tutorial }},

// Determines where controls appear, "edges" or "bottom-right"
controlsLayout: {{ controls_layout }},

// Visibility rule for backwards navigation arrows; "faded", "hidden"
// or "visible"
controlsBackArrows: {{ controls_back_arrows }},

// Display a presentation progress bar
progress: {{ progress }},

// Display the page number of the current slide
// - true: Show slide number
// - false: Hide slide number
Expand All @@ -110,55 +103,41 @@
// object and return an array with one string [slideNumber] or
// three strings [n1,delimiter,n2]. See #formatSlideNumber().
slideNumber: {{ slide_number }},

// Can be used to limit the contexts in which the slide number appears
// - "all": Always show the slide number
// - "print": Only when printing to PDF
// - "speaker": Only in the speaker view
showSlideNumber: {{ show_slide_number }},

// Use 1 based indexing for # links to match slide number (default is zero
// based)
hashOneBasedIndex: {{ hash_one_based_index }},

// Add the current slide number to the URL hash so that reloading the
// page/copying the URL will return you to the same slide
hash: {{ hash }},

// Flags if we should monitor the hash and change slides accordingly
respondToHashChanges: {{ respond_to_hash_changes }},

// Push each slide change to the browser history. Implies `hash: true`
// Push each slide change to the browser history. Implies `hash: true`
history: {{ history }},

// Enable keyboard shortcuts for navigation
keyboard: {{ keyboard }},

// Optional function that blocks keyboard events when retuning false
//
// If you set this to 'focused', we will only capture keyboard events
// for embedded decks when they are in focus
keyboardCondition: {{ keyboard_condition }},

// Disables the default reveal.js slide layout (scaling and centering)
// so that you can use custom CSS layout
disableLayout: {{ disable_layout }},

// Enable the slide overview mode
overview: {{ overview }},

// Vertical centering of slides
center: {{ center }},

// Enables touch navigation on devices with touch input
touch: {{ touch }},

// Loop the presentation
loop: {{ loop }},

// Change the presentation direction to be RTL
rtl: {{ rtl }},

// Changes the behavior of our navigation directions.
//
// "default"
Expand All @@ -184,168 +163,133 @@
// from 1.3 -> 2.1. If "grid" is used, the same navigation takes you
// from 1.3 -> 2.3.
navigationMode: {{ navigation_mode }},

// Randomizes the order of slides each time the presentation loads
shuffle: {{ shuffle }},

// Turns fragments on and off globally
fragments: {{ fragments }},

// Flags whether to include the current fragment in the URL,
// so that reloading brings you to the same fragment position
fragmentInURL: {{ fragment_in_url }},

// Flags if the presentation is running in an embedded mode,
// i.e. contained within a limited portion of the screen
embedded: {{ embedded }},

// Flags if we should show a help overlay when the question-mark
// key is pressed
help: {{ help }},

// Flags if it should be possible to pause the presentation (blackout)
pause: {{ pause }},

// Flags if speaker notes should be visible to all viewers
showNotes: {{ show_notes }},

// Global override for autolaying embedded media (video/audio/iframe)
// - null: Media will only autoplay if data-autoplay is present
// - true: All media will autoplay, regardless of individual setting
// - false: No media will autoplay, regardless of individual setting
autoPlayMedia: {{ auto_play_media }},

// Global override for preloading lazy-loaded iframes
// - null: Iframes with data-src AND data-preload will be loaded when within
// the viewDistance, iframes with only data-src will be loaded when visible
// - true: All iframes with data-src will be loaded when within the viewDistance
// - false: All iframes with data-src will be loaded only when visible
preloadIframes: {{ preload_iframes }},

// Can be used to globally disable auto-animation
autoAnimate: {{ auto_animate }},

// Optionally provide a custom element matcher that will be
// used to dictate which elements we can animate between.
autoAnimateMatcher: {{ auto_animate_matcher }},

// Default settings for our auto-animate transitions, can be
// overridden per-slide or per-element via data arguments
autoAnimateEasing: {{ auto_animate_easing }},
autoAnimateDuration: {{ auto_animate_duration }},
autoAnimateUnmatched: {{ auto_animate_unmatched }},

// CSS properties that can be auto-animated. Position & scale
// is matched separately so there's no need to include styles
// like top/right/bottom/left, width/height or margin.
autoAnimateStyles: {{ auto_animate_styles }},

// Controls automatic progression to the next slide
// - 0: Auto-sliding only happens if the data-autoslide HTML attribute
// is present on the current slide or fragment
// - 1+: All slides will progress automatically at the given interval
// - false: No auto-sliding, even if data-autoslide is present
autoSlide: {{ auto_slide }},

// Stop auto-sliding after user input
autoSlideStoppable: {{ auto_slide_stoppable }},

// Use this method for navigation when auto-sliding (defaults to navigateNext)
autoSlideMethod: {{ auto_slide_method }},

// Specify the average time in seconds that you think you will spend
// presenting each slide. This is used to show a pacing timer in the
// speaker view
defaultTiming: {{ default_timing }},

// Enable slide navigation via mouse wheel
mouseWheel: {{ mouse_wheel }},

// Opens links in an iframe preview overlay
// Add `data-preview-link` and `data-preview-link="false"` to customize each link
// individually
previewLinks: {{ preview_links }},

// Exposes the reveal.js API through window.postMessage
postMessage: {{ post_message }},

// Dispatches all reveal.js events to the parent window through postMessage
postMessageEvents: {{ post_message_events }},

// Focuses body when page changes visibility to ensure keyboard shortcuts work
focusBodyOnPageVisibilityChange: {{ focus_body_on_page_visibility_change }},

// Transition style
transition: {{ transition }}, // none/fade/slide/convex/concave/zoom

// Transition speed
transitionSpeed: {{ transition_speed }}, // default/fast/slow

// Transition style for full page slide backgrounds
backgroundTransition: {{ background_transition }}, // none/fade/slide/convex/concave/zoom

// The maximum number of pages a single slide can expand onto when printing
// to PDF, unlimited by default
pdfMaxPagesPerSlide: {{ pdf_max_pages_per_slide }},

// Prints each fragment on a separate slide
pdfSeparateFragments: {{ pdf_separate_fragments }},

// Offset used to reduce the height of content within exported PDF pages.
// This exists to account for environment differences based on how you
// print to PDF. CLI printing options, like phantomjs and wkpdf, can end
// on precisely the total height of the document whereas in-browser
// printing has to end one pixel before.
pdfPageHeightOffset: {{ pdf_page_height_offset }},

// Number of slides away from the current that are visible
viewDistance: {{ view_distance }},

// Number of slides away from the current that are visible on mobile
// devices. It is advisable to set this to a lower number than
// viewDistance in order to save resources.
mobileViewDistance: {{ mobile_view_distance }},

// The display mode that will be used to show slides
display: {{ display }},

// Hide cursor if inactive
hideInactiveCursor: {{ hide_inactive_cursor }},

// Time before the cursor is hidden (in ms)
hideCursorTime: {{ hide_cursor_time }}
});

{% if data_uri -%}
// Fix found by @t-fritsch on GitHub
// see: https://github.com/hakimel/reveal.js/discussions/3362#discussioncomment-6651475.
function fixBase64VideoBackground(event) {
// event.previousSlide, event.currentSlide, event.indexh, event.indexv
if (event.currentSlide.getAttribute('data-background-video')) {
const background = Reveal.getSlideBackground(event.indexh, event.indexv),
video = background.querySelector('video'),
sources = video.querySelectorAll('source');

sources.forEach((source, i) => {
const src = source.getAttribute('src');
if(src.match(/^data:video.*;base64$/)) {
const nextSrc = sources[i+1]?.getAttribute('src');
video.setAttribute('src', `${src},${nextSrc}`);
}
});
{% if data_uri %}
// Fix found by @t-fritsch on GitHub
// see: https://github.com/hakimel/reveal.js/discussions/3362#discussioncomment-6651475.
function fixBase64VideoBackground(event) {
// event.previousSlide, event.currentSlide, event.indexh, event.indexv
if (event.currentSlide.getAttribute('data-background-video')) {
const background = Reveal.getSlideBackground(event.indexh, event.indexv),
video = background.querySelector('video'),
sources = video.querySelectorAll('source');

sources.forEach((source, i) => {
const src = source.getAttribute('src');
if(src.match(/^data:video.*;base64$/)) {
const nextSrc = sources[i+1]?.getAttribute('src');
video.setAttribute('src', `${src},${nextSrc}`);
}
});
}
}
}
Reveal.on( 'ready', fixBase64VideoBackground );
Reveal.on( 'slidechanged', fixBase64VideoBackground );
{%- endif %}
Reveal.on( 'ready', fixBase64VideoBackground );
Reveal.on( 'slidechanged', fixBase64VideoBackground );
{% endif %}
</script>

{% if env['READTHEDOCS'] -%}
<style>
readthedocs-flyout, readthedocs-notification {
display: none;
}
</style>
{%- endif %}
{% if env['READTHEDOCS'] %}
<style>
readthedocs-flyout, readthedocs-notification {
display: none;
}
</style>
{% endif %}
</body>
</html>
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