From c0c73ad4d4771bd3593ca503cca21aedab31f7b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9rome=20Eertmans?= <jeertmans@icloud.com>
Date: Wed, 7 Dec 2022 16:27:23 +0100
Subject: [PATCH] feat(cli): feally featured RevealJS template (#80)

* feat(cli): feally featured RevealJS template

This adds an option for every possible RevealJS option. Error messages are also improved.

RevealJS version is bumped to latest (4.4.0).

* feat(cli): add primitive support for arbitrary JS functions

* fix(cli): some typos / issues in template

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* fix(lib): pickling issue

* fix(lib): ignore typing error due to __reduce_ex__

* feat(cli): add template selection, fixes first slide bug, and rm stuff

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
---
 .github/workflows/pages.yml              |   2 +-
 .gitignore                               |   4 +
 manim_slides/convert.py                  | 319 +++++++++++++++++--
 manim_slides/data/revealjs_template.html | 388 +++++++++++++++--------
 4 files changed, 537 insertions(+), 176 deletions(-)

diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index 043fdd4..79520eb 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -48,7 +48,7 @@ jobs:
       - name: Build animation and convert it into HTML slides
         run: |
           poetry run manim example.py ConvertExample
-          poetry run manim-slides convert ConvertExample docs/source/_static/slides.html -cembedded=true -ccontrols=true
+          poetry run manim-slides convert ConvertExample docs/source/_static/slides.html -ccontrols=true
       - name: Build docs
         run: cd docs && make html
       - name: Upload artifact
diff --git a/.gitignore b/.gitignore
index 10c8865..dbb5eba 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,3 +23,7 @@ docs/build/
 docs/source/_static/slides_assets/
 
 docs/source/_static/slides.html
+
+slides_assets/
+
+slides.html
diff --git a/manim_slides/convert.py b/manim_slides/convert.py
index 0b1ca54..3257833 100644
--- a/manim_slides/convert.py
+++ b/manim_slides/convert.py
@@ -1,12 +1,12 @@
 import os
 import webbrowser
 from enum import Enum
-from typing import Any, Callable, Dict, Generator, List, Type
+from typing import Any, Callable, Dict, Generator, List, Optional, Type, Union
 
 import click
 import pkg_resources
 from click import Context, Parameter
-from pydantic import BaseModel
+from pydantic import BaseModel, PositiveInt, ValidationError
 
 from .commons import folder_path_option, verbosity_option
 from .config import PresentationConfig
@@ -34,14 +34,21 @@ def validate_config_option(
 class Converter(BaseModel):  # type: ignore
     presentation_configs: List[PresentationConfig] = []
     assets_dir: str = "{basename}_assets"
+    template: Optional[str] = None
 
     def convert_to(self, dest: str) -> None:
         """Converts self, i.e., a list of presentations, into a given format."""
         raise NotImplementedError
 
+    def load_template(self) -> str:
+        """Returns the template as a string.
+
+        An empty string is returned if no template is used."""
+        return ""
+
     def open(self, file: str) -> bool:
         """Opens a file, generated with converter, using appropriate application."""
-        return webbrowser.open(file)
+        raise NotImplementedError
 
     @classmethod
     def from_string(cls, s: str) -> Type["Converter"]:
@@ -51,11 +58,126 @@ class Converter(BaseModel):  # type: ignore
         }[s]
 
 
-class JSBool(str, Enum):
+class Str(str):
+    """A simple string, but quoted when needed."""
+
+    # This fixes pickling issue on Python 3.8
+    __reduce_ex__ = str.__reduce_ex__
+
+    def __str__(self) -> str:
+        """Ensures that the string is correctly quoted."""
+        if self in ["true", "false", "null"]:
+            return super().__str__()
+        else:
+            return f"'{super().__str__()}'"
+
+
+Function = str  # Basically, anything
+
+
+class JsTrue(str, Enum):
+    true = "true"
+
+
+class JsFalse(str, Enum):
+    false = "false"
+
+
+class JsBool(Str, Enum):  # type: ignore
     true = "true"
     false = "false"
 
 
+class JsNull(Str, Enum):  # type: ignore
+    null = "null"
+
+
+class ControlsLayout(Str, Enum):  # type: ignore
+    edges = "edges"
+    bottom_right = "bottom-right"
+
+
+class ControlsBackArrows(Str, Enum):  # type: ignore
+    faded = "faded"
+    hidden = "hidden"
+    visibly = "visibly"
+
+
+class SlideNumber(Str, Enum):  # type: ignore
+    true = "true"
+    false = "false"
+    hdotv = "h.v"
+    handv = "h/v"
+    c = "c"
+    candt = "c/t"
+
+
+class ShowSlideNumber(Str, Enum):  # type: ignore
+    all = "all"
+    print = "print"
+    speaker = "speaker"
+
+
+class KeyboardCondition(Str, Enum):  # type: ignore
+    null = "null"
+    focused = "focused"
+
+
+class NavigationMode(Str, Enum):  # type: ignore
+    default = "default"
+    linear = "linear"
+    grid = "grid"
+
+
+class AutoPlayMedia(Str, Enum):  # type: ignore
+    null = "null"
+    true = "true"
+    false = "false"
+
+
+PreloadIframes = AutoPlayMedia
+
+
+class AutoAnimateMatcher(Str, Enum):  # type: ignore
+    null = "null"
+
+
+class AutoAnimateEasing(Str, Enum):  # type: ignore
+    ease = "ease"
+
+
+AutoSlide = Union[PositiveInt, JsFalse]
+
+
+class AutoSlideMethod(Str, Enum):  # type: ignore
+    null = "null"
+
+
+MouseWheel = Union[JsNull, float]
+
+
+class Transition(Str, Enum):  # type: ignore
+    none = "none"
+    fade = "fade"
+    slide = "slide"
+    convex = "convex"
+    concave = "concave"
+    zoom = "zoom"
+
+
+class TransitionSpeed(Str, Enum):  # type: ignore
+    default = "default"
+    fast = "fast"
+    slow = "slow"
+
+
+BackgroundTransition = Transition
+
+
+class Display(Str, Enum):  # type: ignore
+    block = "block"
+
+
 class RevealTheme(str, Enum):
     black = "black"
     white = "white"
@@ -71,21 +193,90 @@ class RevealTheme(str, Enum):
 
 
 class RevealJS(Converter):
-    background_color: str = "black"
-    controls: JSBool = JSBool.false
-    embedded: JSBool = JSBool.false
-    fragments: JSBool = JSBool.false
-    height: str = "100%"
-    loop: JSBool = JSBool.false
-    progress: JSBool = JSBool.false
-    reveal_version: str = "3.7.0"
+    # Presentation size options from RevealJS
+    width: Union[Str, int] = Str("100%")
+    height: Union[Str, int] = Str("100%")
+    margin: float = 0.04
+    min_scale: float = 0.2
+    max_scale: float = 2.0
+    # Configuration options from RevealJS
+    controls: JsBool = JsBool.false
+    controls_tutorial: JsBool = JsBool.true
+    controls_layout: ControlsLayout = ControlsLayout.bottom_right
+    controls_back_arrows: ControlsBackArrows = ControlsBackArrows.faded
+    progress: JsBool = JsBool.false
+    slide_number: SlideNumber = SlideNumber.false
+    show_slide_number: Union[ShowSlideNumber, Function] = ShowSlideNumber.all
+    hash_one_based_index: JsBool = JsBool.false
+    hash: JsBool = JsBool.false
+    respond_to_hash_changes: JsBool = JsBool.false
+    history: JsBool = JsBool.false
+    keyboard: JsBool = JsBool.true
+    keyboard_condition: Union[KeyboardCondition, Function] = KeyboardCondition.null
+    disable_layout: JsBool = JsBool.false
+    overview: JsBool = JsBool.true
+    center: JsBool = JsBool.true
+    touch: JsBool = JsBool.true
+    loop: JsBool = JsBool.false
+    rtl: JsBool = JsBool.false
+    navigation_mode: NavigationMode = NavigationMode.default
+    shuffle: JsBool = JsBool.false
+    fragments: JsBool = JsBool.true
+    fragment_in_url: JsBool = JsBool.true
+    embedded: JsBool = JsBool.false
+    help: JsBool = JsBool.true
+    pause: JsBool = JsBool.true
+    show_notes: JsBool = JsBool.false
+    auto_play_media: AutoPlayMedia = AutoPlayMedia.null
+    preload_iframes: PreloadIframes = PreloadIframes.null
+    auto_animate: JsBool = JsBool.true
+    auto_animate_matcher: Union[AutoAnimateMatcher, Function] = AutoAnimateMatcher.null
+    auto_animate_easing: AutoAnimateEasing = AutoAnimateEasing.ease
+    auto_animate_duration: float = 1.0
+    auto_animate_unmatched: JsBool = JsBool.true
+    auto_animate_styles: List[str] = [
+        "opacity",
+        "color",
+        "background-color",
+        "padding",
+        "font-size",
+        "line-height",
+        "letter-spacing",
+        "border-width",
+        "border-color",
+        "border-radius",
+        "outline",
+        "outline-offset",
+    ]
+    auto_slide: AutoSlide = 0
+    auto_slide_stoppable: JsBool = JsBool.true
+    auto_slide_method: Union[AutoSlideMethod, Function] = AutoSlideMethod.null
+    default_timing: Union[JsNull, int] = JsNull.null
+    mouse_wheel: JsBool = JsBool.false
+    preview_links: JsBool = JsBool.false
+    post_message: JsBool = JsBool.true
+    post_message_events: JsBool = JsBool.false
+    focus_body_on_page_visibility_change: JsBool = JsBool.true
+    transition: Transition = Transition.none
+    transition_speed: TransitionSpeed = TransitionSpeed.default
+    background_transition: BackgroundTransition = BackgroundTransition.none
+    pdf_max_pages_per_slide: Union[int, str] = "Number.POSITIVE_INFINITY"
+    pdf_separate_fragments: JsBool = JsBool.true
+    pdf_page_height_offset: int = -1
+    view_distance: int = 3
+    mobile_view_distance: int = 2
+    display: Display = Display.block
+    hide_inactive_cursor: JsBool = JsBool.true
+    hide_cursor_time: int = 5000
+    # Add. options
+    background_color: str = "black"  # TODO: use pydantic.color.Color
+    reveal_version: str = "4.4.0"
     reveal_theme: RevealTheme = RevealTheme.black
-    shuffle: JSBool = JSBool.false
     title: str = "Manim Slides"
-    width: str = "100%"
 
     class Config:
         use_enum_values = True
+        extra = "forbid"
 
     def get_sections_iter(self) -> Generator[str, None, None]:
         """Generates a sequence of sections, one per slide, that will be included into the html template."""
@@ -94,17 +285,27 @@ class RevealJS(Converter):
                 file = presentation_config.files[slide_config.start_animation]
                 file = os.path.join(self.assets_dir, os.path.basename(file))
 
+                # TODO: document this
+                # Videos are muted because, otherwise, the first slide never plays correctly.
+                # This is due to a restriction in playing audio without the user doing anything.
+                # Later, this might be useful to only mute the first video, or to make it optional.
                 if slide_config.is_loop():
-                    yield f'<section data-background-video="{file}" data-background-video-loop></section>'
+                    yield f'<section data-background-video="{file}" data-background-video-muted data-background-video-loop></section>'
                 else:
-                    yield f'<section data-background-video="{file}"></section>'
+                    yield f'<section data-background-video="{file}" data-background-video-muted></section>'
 
     def load_template(self) -> str:
         """Returns the RevealJS HTML template as a string."""
+        if isinstance(self.template, str):
+            with open(self.template, "r") as f:
+                return f.read()
         return pkg_resources.resource_string(
             __name__, "data/revealjs_template.html"
         ).decode()
 
+    def open(self, file: str) -> bool:
+        return webbrowser.open(file)
+
     def convert_to(self, dest: str) -> None:
         """Converts this configuration into a RevealJS HTML presentation, saved to DEST."""
         dirname = os.path.dirname(dest)
@@ -138,19 +339,13 @@ def show_config_options(function: Callable[..., Any]) -> Callable[..., Any]:
         if not value or ctx.resilient_parsing:
             return
 
-        to = ctx.params.get("to")
+        to = ctx.params.get("to", "html")
 
-        if to:
-            converter = Converter.from_string(to)(scenes=[])
-            for key, value in converter.dict().items():
-                click.echo(f"{key}: {repr(value)}")
+        converter = Converter.from_string(to)(presentation_configs=[])
+        for key, value in converter.dict().items():
+            click.echo(f"{key}: {repr(value)}")
 
-            ctx.exit()
-
-        else:
-            raise click.UsageError(
-                "Using --show-config option requires to first specify --to option."
-            )
+        ctx.exit()
 
     return click.option(
         "--show-config",
@@ -163,6 +358,35 @@ def show_config_options(function: Callable[..., Any]) -> Callable[..., Any]:
     )(function)
 
 
+def show_template_option(function: Callable[..., Any]) -> Callable[..., Any]:
+    """Wraps a function to add a `--show-template` option."""
+
+    def callback(ctx: Context, param: Parameter, value: bool) -> None:
+
+        if not value or ctx.resilient_parsing:
+            return
+
+        to = ctx.params.get("to", "html")
+        template = ctx.params.get("template", None)
+
+        converter = Converter.from_string(to)(
+            presentation_configs=[], template=template
+        )
+        click.echo(converter.load_template())
+
+        ctx.exit()
+
+    return click.option(
+        "--show-template",
+        is_flag=True,
+        help="Show the template (currently) used for a given conversion format and exit.",
+        default=None,
+        expose_value=False,
+        show_envvar=True,
+        callback=callback,
+    )(function)
+
+
 @click.command()
 @click.argument("scenes", nargs=-1)
 @folder_path_option
@@ -187,8 +411,16 @@ def show_config_options(function: Callable[..., Any]) -> Callable[..., Any]:
     "config_options",
     multiple=True,
     callback=validate_config_option,
-    help="Configuration options passed to the converter. E.g., pass `-cbackground_color=red` to set the background color to red (if supported).",
+    help="Configuration options passed to the converter. E.g., pass `-cshow_number=true` to display slide numbers.",
 )
+@click.option(
+    "--use-template",
+    "template",
+    metavar="FILE",
+    type=click.Path(exists=True, dir_okay=False),
+    help="Use the template given by FILE instead of default one. To echo the default template, use `--show-template`.",
+)
+@show_template_option
 @show_config_options
 @verbosity_option
 def convert(
@@ -199,6 +431,7 @@ def convert(
     open_result: bool,
     force: bool,
     config_options: Dict[str, str],
+    template: Optional[str],
 ) -> None:
     """
     Convert SCENE(s) into a given format and writes the result in DEST.
@@ -206,11 +439,29 @@ def convert(
 
     presentation_configs = get_scenes_presentation_config(scenes, folder)
 
-    converter = Converter.from_string(to)(
-        presentation_configs=presentation_configs, **config_options
-    )
+    try:
+        converter = Converter.from_string(to)(
+            presentation_configs=presentation_configs,
+            template=template,
+            **config_options,
+        )
 
-    converter.convert_to(dest)
+        converter.convert_to(dest)
 
-    if open_result:
-        converter.open(dest)
+        if open_result:
+            converter.open(dest)
+
+    except ValidationError as e:
+
+        errors = e.errors()
+
+        msg = [
+            f"{len(errors)} error(s) occured with configuration options for '{to}', see below."
+        ]
+
+        for error in errors:
+            option = error["loc"][0]
+            _msg = error["msg"]
+            msg.append(f"Option '{option}': {_msg}")
+
+        raise click.UsageError("\n".join(msg))
diff --git a/manim_slides/data/revealjs_template.html b/manim_slides/data/revealjs_template.html
index b1c155e..534ac02 100644
--- a/manim_slides/data/revealjs_template.html
+++ b/manim_slides/data/revealjs_template.html
@@ -1,185 +1,291 @@
 <!doctype html>
 <html>
 
-<head>
-	<meta charset="utf-8">
-	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
 
-	<title>{title}</title>
+    <title>{title}</title>
 
-	<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/css/reveal.css">
-	<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/css/theme/{reveal_theme}.css">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/reveal.js/{reveal_version}/reveal.min.css">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/reveal.js/{reveal_version}/theme/{reveal_theme}.min.css">
 
-	<!-- Theme used for syntax highlighting of code -->
-	<!-- <link rel="stylesheet" href="lib/css/zenburn.css"> -->
-	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/zenburn.min.css">
+    <!-- Theme used for syntax highlighting of code -->
+    <!-- <link rel="stylesheet" href="lib/css/zenburn.css"> -->
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/zenburn.min.css">
 
-	<!-- Printing and PDF exports -->
-	<script>
-		var link = document.createElement('link');
-		link.rel = 'stylesheet';
-		link.type = 'text/css';
-		link.href = window.location.search.match(/print-pdf/gi) ? 'https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/css/print/pdf.css' : 'https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/css/print/paper.css';
-		document.getElementsByTagName('head')[0].appendChild(link);
-	</script>
-	<!-- <link rel="stylesheet" href="index.css"> -->
-</head>
+    <!-- <link rel="stylesheet" href="index.css"> -->
+  </head>
 
-<body>
-	<div class="reveal">
-		<div class="slides">
-            {sections}
-		</div>
-	</div>
+  <body>
+    <div class="reveal">
+      <div class="slides">
+        {sections}
+      </div>
+    </div>
 
-	<!--<script src="lib/js/head.min.js"></script>-->
-	<script src="https://cdn.jsdelivr.net/npm/headjs@1.0.3/dist/1.0.0/head.min.js"></script>
-	<script src="https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/js/reveal.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/reveal.js/{reveal_version}/reveal.min.js"></script>
 
-	<!-- <script src="index.js"></script> -->
-	<script>
-		// More info about config & dependencies:
-		// - https://github.com/hakimel/reveal.js#configuration
-		// - https://github.com/hakimel/reveal.js#dependencies
-		Reveal.initialize({{
-			// Display controls in the bottom right corner
-			controls: {controls},
+    <!-- To include plugins, see: https://revealjs.com/plugins/ -->
 
-			width: '{width}',
-			height: '{height}',
+    <!-- <script src="index.js"></script> -->
+    <script>
+      Reveal.initialize({{
 
-			// Display a presentation progress bar
-			progress: {progress},
+                // 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},
 
-			// Set default timing of 2 minutes per slide
-			defaultTiming: 120,
+                // Factor of the display size that should remain empty around
+                // the content
+                margin: {margin},
 
-			// Display the page number of the current slide
-			slideNumber: true,
+                // Bounds for smallest/largest possible scale to apply to content
+                minScale: {min_scale},
+                maxScale: {max_scale},
 
-			// Push each slide change to the browser history
-			history: false,
+                // Display presentation control arrows
+                controls: {controls},
 
-			// Enable keyboard shortcuts for navigation
-			keyboard: true,
+                // 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},
 
-			// Enable the slide overview mode
-			overview: true,
+                // Determines where controls appear, "edges" or "bottom-right"
+                controlsLayout: {controls_layout},
 
-			// Vertical centering of slides
-			center: true,
+                // Visibility rule for backwards navigation arrows; "faded", "hidden"
+                // or "visible"
+                controlsBackArrows: {controls_back_arrows},
 
-			// Enables touch navigation on devices with touch input
-			touch: true,
+                // Display a presentation progress bar
+                progress: {progress},
 
-			// Loop the presentation
-			loop: {loop},
+                // Display the page number of the current slide
+                // - true:    Show slide number
+                // - false:   Hide slide number
+                //
+                // Can optionally be set as a string that specifies the number formatting:
+                // - "h.v":   Horizontal . vertical slide number (default)
+                // - "h/v":   Horizontal / vertical slide number
+                // - "c":   Flattened slide number
+                // - "c/t":   Flattened slide number / total slides
+                //
+                // Alternatively, you can provide a function that returns the slide
+                // number for the current slide. The function should take in a slide
+                // object and return an array with one string [slideNumber] or
+                // three strings [n1,delimiter,n2]. See #formatSlideNumber().
+                slideNumber: {slide_number},
 
-			// Change the presentation direction to be RTL
-			rtl: false,
+                // 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},
 
-			// Randomizes the order of slides each time the presentation loads
-			shuffle: {shuffle},
+                // Use 1 based indexing for # links to match slide number (default is zero
+                // based)
+                hashOneBasedIndex: {hash_one_based_index},
 
-			// Turns fragments on and off globally
-			fragments: {fragments},
+                // 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 the presentation is running in an embedded mode,
-			// i.e. contained within a limited portion of the screen
-			embedded: {embedded},
+                // Flags if we should monitor the hash and change slides accordingly
+                respondToHashChanges: {respond_to_hash_changes},
 
-			// Flags if we should show a help overlay when the questionmark
-			// key is pressed
-			help: true,
+                // Push each slide change to the browser history.  Implies `hash: true`
+                history: {history},
 
-			// Flags if speaker notes should be visible to all viewers
-			showNotes: false,
+                // Enable keyboard shortcuts for navigation
+                keyboard: {keyboard},
 
-			// 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: null,
+                // 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},
 
-			// Number of milliseconds between automatically proceeding to the
-			// next slide, disabled when set to 0, this value can be overwritten
-			// by using a data-autoslide attribute on your slides
-			autoSlide: 0,
+                // Disables the default reveal.js slide layout (scaling and centering)
+                // so that you can use custom CSS layout
+                disableLayout: {disable_layout},
 
-			// Stop auto-sliding after user input
-			autoSlideStoppable: true,
+                // Enable the slide overview mode
+                overview: {overview},
 
-			// Use this method for navigation when auto-sliding
-			autoSlideMethod: Reveal.navigateNext,
+                // Vertical centering of slides
+                center: {center},
 
-			// Enable slide navigation via mouse wheel
-			mouseWheel: false,
+                // Enables touch navigation on devices with touch input
+                touch: {touch},
 
-			// Hides the address bar on mobile devices
-			hideAddressBar: true,
+                // Loop the presentation
+                loop: {loop},
 
-			// Opens links in an iframe preview overlay
-			previewLinks: true,
+                // Change the presentation direction to be RTL
+                rtl: {rtl},
 
-			// Transition style
-			transition: 'none', // none/fade/slide/convex/concave/zoom
+                // Changes the behavior of our navigation directions.
+                //
+                // "default"
+                // Left/right arrow keys step between horizontal slides, up/down
+                // arrow keys step between vertical slides. Space key steps through
+                // all slides (both horizontal and vertical).
+                //
+                // "linear"
+                // Removes the up/down arrows. Left/right arrows step through all
+                // slides (both horizontal and vertical).
+                //
+                // "grid"
+                // When this is enabled, stepping left/right from a vertical stack
+                // to an adjacent vertical stack will land you at the same vertical
+                // index.
+                //
+                // Consider a deck with six slides ordered in two vertical stacks:
+                // 1.1    2.1
+                // 1.2    2.2
+                // 1.3    2.3
+                //
+                // If you're on slide 1.3 and navigate right, you will normally move
+                // from 1.3 -> 2.1. If "grid" is used, the same navigation takes you
+                // from 1.3 -> 2.3.
+                navigationMode: {navigation_mode},
 
-			// Transition speed
-			transitionSpeed: 'default', // default/fast/slow
+                // Randomizes the order of slides each time the presentation loads
+                shuffle: {shuffle},
 
-			// Transition style for full page slide backgrounds
-			backgroundTransition: 'none', // none/fade/slide/convex/concave/zoom
+                // Turns fragments on and off globally
+                fragments: {fragments},
 
-			// Number of slides away from the current that are visible
-			viewDistance: 3,
+                // Flags whether to include the current fragment in the URL,
+                // so that reloading brings you to the same fragment position
+                fragmentInURL: {fragment_in_url},
 
-			// Parallax background image
-			parallaxBackgroundImage: '', // e.g. "'https://s3.amazonaws.com/hakim-static/reveal-js/reveal-parallax-1.jpg'"
+                // Flags if the presentation is running in an embedded mode,
+                // i.e. contained within a limited portion of the screen
+                embedded: {embedded},
 
-			// Parallax background size
-			parallaxBackgroundSize: '', // CSS syntax, e.g. "2100px 900px"
+                // Flags if we should show a help overlay when the question-mark
+                // key is pressed
+                help: {help},
 
-			// Number of pixels to move the parallax background per slide
-			// - Calculated automatically unless specified
-			// - Set to 0 to disable movement along an axis
-			parallaxBackgroundHorizontal: null,
-			parallaxBackgroundVertical: null,
+                // 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 customise 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}
 
 
-			// The display mode that will be used to show slides
-			display: 'block',
-
-			/*
-			multiplex: {{
-				// Example values. To generate your own, see the socket.io server instructions.
-				secret: '13652805320794272084', // Obtained from the socket.io server. Gives this (the master) control of the presentation
-				id: '1ea875674b17ca76', // Obtained from socket.io server
-				url: 'https://reveal-js-multiplex-ccjbegmaii.now.sh' // Location of socket.io server
-			}},
-			*/
-
-			dependencies: [
-				{{ src: 'https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/plugin/markdown/marked.js' }},
-				{{ src: 'https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/plugin/markdown/markdown.js' }},
-				{{ src: 'https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/plugin/notes/notes.js', async: true }},
-				{{ src: 'https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/plugin/highlight/highlight.js', async: true, callback: function () {{ hljs.initHighlightingOnLoad(); }} }},
-				//{{ src: '//cdn.socket.io/socket.io-1.3.5.js', async: true }},
-				//{{ src: 'plugin/multiplex/master.js', async: true }},
-				// and if you want speaker notes
-				{{ src: 'https://cdn.jsdelivr.net/npm/reveal.js@{reveal_version}/plugin/notes-server/client.js', async: true }}
-
-			],
-			markdown: {{
-				//            renderer: myrenderer,
-				smartypants: true
-			}}
-		}});
-		Reveal.configure({{
-			// PDF Configurations
-			pdfMaxPagesPerSlide: 1
-
-		}});
-	</script>
-</body>
+            }});
+    </script>
+  </body>
 
 </html>