shiny 1.8.0

Breaking changes

• Closed #3899: The JS function Shiny.bindAll() is now asynchronous. This change is driven by the recent push toward making dynamic UI rendering asynchronous, which is necessary for shinylive (and should've happened when it was first introduced in Shiny v1.7.5). The vast majority of existing Shiny.bindAll() uses should continue to work as before, but some cases may break if downstream code relies on it being synchronous (i.e., blocking the main thread). In this case, consider placing any downstream code in a .then() callback (or await the result in a async function). (#3929)
  • Since renderContent() calls bindAll() (after it inserts content), it now returns a Promise<void> instead of void, which can be useful if downstream code needs to wait for the binding to complete.

New features and improvements

• Updated selectizeInput()'s selectize.js dependency from v0.12.4 to v0.15.2. In addition to many bug fixes and improvements, this update also adds several new plugin options. (#3875)

• Shiny's CSS styling (for things like showNotification(), withProgress(), inputPanel(), etc.), has been updated with {bslib}'s upcoming CSS-only dark mode feature in mind. (#3882, #3914)

• Default styles for showNotification() were tweaked slightly to improve accessibility, sizing, and padding. (#3913)

• Shiny inputs and {htmlwidgets} are no longer treated as draggable inside of absolutePanel()/fixedPanel() with draggable = TRUE. As a result, interactions like zooming and panning now work as expected with widgets like {plotly} and {leaflet} when they appear in a draggable panel. (#3752, #3933)

• For InputBindings, the .receiveMessage() method can now be asynchronous or synchronous (previously it could only be synchronous). (#3930)

Bug fixes

• fileInput() no longer has unwanted round corners applied to the buttonLabel. (#3879)

• Fixed #3898: wrapFunctionLabel() no longer throws an error if the name is longer than 10000 bytes. (#3903)

shiny 1.7.5.1

Bug fixes

• On r-devel (R > 4.3.1), isTruthy(NULL) now returns FALSE (as it does with older versions of R). (#3906)

shiny 1.7.5

Possibly breaking changes

• For reactiveValues() objects, whenever the $names() or $values() methods are called, the keys are now returned in the order that they were inserted. (#3774)

• The value provided to options(shiny.json.digits) is now interpreted as number of digits after the decimal instead of significant digits. To treat the value as significant digits, wrap it in I() (e.g., options(shiny.json.digits = I(4))). This new default behavior not only helps with reducing digits in testing snapshots, but is also more consistent with {jsonlite}'s default behavior. (#3819)

New features and improvements

• Closed #789: Dynamic UI is now rendered asynchronously, thanks in part to the newly exported Shiny.renderDependenciesAsync(), Shiny.renderHtmlAsync(), and Shiny.renderContentAsync(). Importantly, this means <script> tags are now loaded asynchronously (the old way used XMLHttpRequest, which is synchronous). In addition, Shiny now manages a queue of async tasks (exposed via Shiny.shinyapp.taskQueue) so that order of execution is preserved. (#3666)

• Fixes #3840: updateSliderInput() now warns when attempting to set invalid min, max, or value values. Sending an invalid update message to an input no longer causes other update messages to fail. (#3843)

• sliderInput() now has a larger target area for clicking or tapping on the slider handle or range. (#3859)

• Closed #2956: Component authors can now prevent Shiny from creating an input binding on specific elements by adding the data-shiny-no-bind-input attribute to the element. The attribute may have any or no value; its presence will prevent binding. This feature is primarily useful for input component authors who want to use standard HTML input elements without causing Shiny to create an input binding for them. Additionally, Shiny now adds custom classes to its inputs. For example, checkboxInput() now has a shiny-input-checkbox class. These custom classes may be utilized in future updates to Shiny's input binding logic. (#3861)

• Map objects are now initialized at load time instead of build time. This avoids potential problems that could arise from storing fastmap objects into the built Shiny package. (#3775)

Bug fixes

• Fixed #3771: Sometimes the error ion.rangeSlider.min.js: i.stopPropagation is not a function would appear in the JavaScript console. (#3772)

• Fixed #3833: When width is provided to textAreaInput(), we now correctly set the width of the <textarea> element. (#3838)