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This release focuses entirely on improving the panelset feature, especially in Quarto web pages and slides. Panelset is also now a Quarto extension that can be installed with quarto add gadenbuie/xaringanExtra and can be used with any computation engine.
panelset now works even better in Quarto documents, using the same syntax as used for panelsets in R Markdown documents (#190).
panelset now supports a fenced div syntax where ::: {.panelset} is used to start a panelset and each panel is defined by a new heading within the fenced div. When used in this way, the heading level of the subsections is ignored, the highest level subsection heading within the fenced div determines the section level that creates a new panel (#191).
panelset CSS was revamped for better ergonomics, in particular to improve how the border bottom separating the tabs from the content and the bottom border of the active tab are handled. style_panelset_tabs() gains a new separator_color argument to replace tabs_border_bottom (#192).
panelset now fully supports panelset chunks in Quarto, either with #| panelset: true for chunk options or the alternative syntax specifying the panel names for the source and output panels (#193):
Unlike in R Markdown, where you always need to place panelset chunks in a ::: {.panelset} div, in Quarto, panelset code chunks automatically create their own panelsets with two tabs (code and output). Use the ::: {.panelset} syntax to add more than one panelset code chunk to the same panelset (#196).
Nested panelsets are now supported (#194)! In xaringan slides and when using the hand-rolled panelset syntax, you can now nest panelsets within panelsets. In R Markdown or Quarto documents, panelsets chunks can be nested within panelset sections. Nesting panelset sections requires the fenced div syntax:
panelset fully supports Quarto Revealjs Presentations. All of panelset’s features in xaringan are fully supported in Quarto slides, including automatically stepping through the panels on a slides (#195).
panelset now supports synchronized panels (#195)! Give each panelset a group attribute with a unique name, e.g. {.panelset group="language"}, and the selected tab will be synchronized across all other panelsets with the same group name. The tab selection is synchronized by tab name, so if the user switches from the “R” tab to the “Python” tab, all panelsets with group="language" will have their “Python” tab activated (if they have one).
The chosen panel tab is stored in the user’s browser, which means that the user’s choice is reflected across all pages on your domain. It’s also remembered when they return to your page later (in the same browser). Technically, this feature uses the browser’s localStorage API and no user data is transmitted anywhere.
panelset is now also a Quarto extension that can be installed and used without requiring R (#195). To install the extension, run the following in your terminal.
Then, in your Quarto document, add the following to the YAML front matter:
panelset now forces the chunk options echo = TRUE and eval = TRUE, when panelset = TRUE is used. Without these options, panelset’s knitr hooks can’t correctly convert the chunk source and output into two separate panels.
When these options are disabled via a chunk option on the panelset chunk, panelset will give an error to help you spot this issue early. But if echo and eval are globally set to FALSE, panelset will now automatically set them to TRUE. This is especially helpful in Quarto revealjs presentations where Quarto defaults to echo = FALSE (#196).
BREAKING CHANGE: All arguments to use_banner() must be named. use_banner() now takes ... earlier since you may want to include style_banner() style arguments without having to specify all the other arguments (#169).
scribble can now be disabled on an individual slide by adding class: no-scribble to the slide (@mattwarkentin #166).
Embedding slides via embed_xaringan() no longer requires that you set self_contained: false in the R Markdown document. embed_xaringan() now automatically sets the data-external="1" attribute on the element embedding the xaringan slides (thanks @jhelvy, @drfurtado, #177).
editable now hides remark’s “Paused” overlay when editing slides in presenter mode (#178).
use_banner(). Banners are text (or other HTML) that appear on every slide, for example the title of your talk or a link to your slides online. (thanks @mattwarkentin and @dataning, #161)Sideways panelsets collapse to standard panelsets with tabs above the content on small devices (max-width 480px). (#122)
Keep sideways panelset tabs on screen with long-scrolling content. (#123)
The panelset=TRUE chunk option now automatically sets results="hold" unless over-ridden by a local chunk option.
share again no longer shows when viewing slides in the RStudio viewer pane. (#128)
use_xaringan_extras("panelset") is now equivalent to use_panelset(). Previously the first would not install the knitr chunk hooks.
panelset now uses the xaringan knitr source hooks, restoring line highlighting in the source panel of panelset chunks. (#138)
Hide scribble controls when printing slides (thanks @yyzeng, #136).
text_poster() has been removed.
Added color presets to scribble: press 0 through 9 while drawing to quickly toggle through a preset color palette, customizable using the palette argument of use_palette() (thanks @kim-soo-hwan, #112, #117).
New feature: animated progress bars that don’t interfere with the slide number. Simply add use_progress_bar() to your slides! (#109, #118)
use_freezeframe() (#102)rgb() syntax by calling the rgb() function in R: instead of "rgb(61, 255, 232)", you can write rgb(61, 255, 232, maxColorValue = 255).use_scribble() you can draw on your slides using your mouse or a tablet with stylus. Drawings stay with each slide and scale when the slides are resized. You can erase individual lines, undo or redo with keyboard shortcuts, or clear the drawings on the current slide easily with the provided toolbox. Thanks also to @LauraRK and @rpruim for suggestions and feedback. (@mattwarkentin #87)New addin: search! Easily search through the text in your slides. (thanks @statnmap, #82)
All extensions now use version numbers that are independent of the xaringanExtra package version. This will reduce the number of copies of an extension that are added to a blogdown site’s dependencies by ensuring that unrelated package updates don’t change the extension version number.
Added panelset chunks that output code chunks source and results in separate panel tabs (#59)
Added broadcast, a new experimental extension that allows viewers to follow the presenter’s slides in their own browsers (thanks @spcanelon, #51, #58)
Changing a panelset tab now emits a window resize event in hopes that any HTMLwidgets contained in the panel will resize to fit the panel container (thanks @mfherman #64)
.tabset feature in R Markdown documents! See the panelset documentation for more information and examples (#41).style_share_again(): fixed default arguments, the buttons now correctly inherit the foreground color, and slides without an author or title are handled correctly (thanks @mattwarkentin, #48).<iframe> in another page. Another function embed_xaringan() is provided to embed slides in blogdown and R Markdown HTML sites in a responsive container.Various updates do use_logo() documentation. The class to hide the logo is .hide_logo and the logo CSS and JavaScript are embedded directly for xaringan >= 0.16 (thanks @chainsawriot, #22, #24, #25, #30)
Updated cookie settings when storing editable fields (#42)
Disabled spell check and auto complete in editable areas (#16)
The CSS variables for panelset have been renamed and the arguments of style_panelset_tabs() haven been updated for ease of use. Unfortunately, this change is not backwards compatible; using the previous argument names will result in an informative warning without throwing an error. The panelset also does a better job of handling many tabs, which are now wrapped into multiple lines of tabs. (thanks @realauggieheschmeyer, #37, #38, #39).
In conjunction with the item above, the style_panelset() has been renamed style_panelset_tabs(). This more clearly describes the part of the panelset that is styled, and it helps clarify the meaning of the more concise function argument names.
Increased specificity of CSS rules for the panelset.
Added --panel-tab-background-color with additional -active and -hover custom properties to style the background color of tabs. Similarly, two CSS variables for border color were added: --panel-tab-border-color-active and --panel-tab-border-color-hover.
Updated Tachyons to 4.12.0 (#27)
Added clipboard extra with use_clipboard(). Adds a “Copy Code” button to code chunks (<pre><code>...</code></pre>) and works in both xaringan slides and R Markdown documents (thanks @mattwarkentin #20, #36).
Improved accessibility of panelset so that it now works with touch devices. The currently selected tab is written into the URL query to ensure that URLs resolve to currently open tab. The tab ID isn’t written into the URL hash because this is used by remarkjs to jump to the current slide. (#34, #33, #18)
Added a NEWS.md file to track changes to the package.
text_poster() has been deprecated and will be removed eventually.
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