shiny/NEWS

shiny 0.7.0
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* Stopped sending websocket subprotocol. This fixes a compatibility issue with
  Google Chrome 30.

* The `input` and `output` objects are now also accessible via `session$input`
  and `session$output`.

* Added click and hover events for static plots; see `?plotOutput` for details.

* Added optional logging of the execution states of a reactive program, and
  tools for visualizing the log data. To use, start a new R session and call
  `options(shiny.reactlog=TRUE)`. Then launch a Shiny app and interact with it.
  Press Ctrl+F3 (or for Mac, Cmd+F3) in the browser to launch an interactive
  visualization of the reactivity that has occurred. See `?showReactLog` for
  more information.

* Added `includeScript()` and `includeCSS()` functions.

* Reactive expressions now have class="reactive" attribute. Also added
  `is.reactive()` and `is.reactivevalues()` functions.

* New `stopApp()` function, which stops an app and returns a value to the caller
  of `runApp()`.

* Added the `shiny.usecairo` option, which can be used to tell Shiny not to use
  Cairo for PNG output even when it is installed. (Defaults to `TRUE`.)

* Speed increases for `selectInput()` and `radioButtons()`, and their
  corresponding updater functions, for when they have many options.

* Added `tagSetChildren()` and `tagAppendChildren()` functions.

* The HTTP request object that created the websocket is now accessible from the
  `session` object, as `session$request`. This is a Rook-like request
  environment that can be used to access HTTP headers, among other things.
  (Note: When running in a Shiny Server environment, the request will reflect
  the proxy HTTP request that was made from the Shiny Server process to the R
  process, not the request that was made from the web browser to Shiny Server.)

* Fix `getComputedStyle` issue, for IE8 browser compatibility (#196). Note:
  Shiny Server is still required for IE8/9 compatibility.

* Add shiny.sharedSecret option, to require the HTTP header Shiny-Shared-Secret
  to be set to the given value.

shiny 0.6.0
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* `tabsetPanel()` can be directed to start with a specific tab selected.

* Fix bug where multiple file uploads with 3 or more files result in incorrect
  data.

* Add `withTags()` function.

* Add dateInput and dateRangeInput.

* `shinyServer()` now takes an optional `session` argument, which is used for
  communication with the session object.

* Add functions to update values of existing inputs on a page, instead of
  replacing them entirely.

* Allow listening on domain sockets.

* Added `actionButton()` to Shiny.

* The server can now send custom JSON messages to the client. On the client
  side, functions can be registered to handle these messages.

* Callbacks can be registered to be called at the end of a client session.

* Add ability to set priority of observers and outputs. Each priority level
  gets its own queue.

* Fix bug where the presence of a submit button would prevent sending of
  metadata until the button was clicked.

* `reactiveTimer()` and `invalidateLater()` by default no longer invalidate
  reactive objects after the client session has closed.

* Shiny apps can be run without a server.r and ui.r file.

shiny 0.5.0
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* Switch from websockets package for handling websocket connections to httpuv.

* New method for detecting hidden output objects. Instead of checking that
  height and width are 0, it checks that the object or any ancestor in the DOM
  has style display:none.

* Add `clientData` reactive values object, which carries information about the
  client. This includes the hidden status of output objects, height/width plot
  output objects, and the URL of the browser.

* Add `parseQueryString()` function.

* Add `renderImage()` function for sending arbitrary image files to the client,
  and its counterpart, `imageOutput()`.

* Add support for high-resolution (Retina) displays.

* Fix bug #55, where `renderTable()` would throw error with an empty data frame.

shiny 0.4.1
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* Fix bug where width and height weren't passed along properly from
  `reactivePlot` to `renderPlot`.

* Fix bug where infinite recursion would happen when `reactivePlot` was passed
  a function for width or height.

shiny 0.4.0
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* Added suspend/resume capability to observers.

* Output objects are automatically suspended when they are hidden on the user's
  web browser.

* `runGist()` accepts GitHub's new URL format, which includes the username.

* `reactive()` and `observe()` now take expressions instead of functions.

* `reactiveText()`, `reactivePlot()`, and so on, have been renamed to
  `renderText()`, `renderPlot()`, etc.  They also now take expressions instead
  of functions.

* Fixed a bug where empty values in a numericInput were sent to the R process
  as 0. They are now sent as NA.

shiny 0.3.1
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* Fix issue #91: bug where downloading files did not work.

* Add [[<- operator for shinyoutput object, making it possible to assign values
  with `output[['plot1']] <- ...`.

* Reactive functions now preserve the visible/invisible state of their returned
  values.

shiny 0.3.0
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* Reactive functions are now evaluated lazily.

* Add `reactiveValues()`.

* Using `as.list()` to convert a reactivevalues object (like `input`) to a list
  is deprecated. The new function `reactiveValuesToList()` should be used
  instead.

* Add `isolate()`. This function is used for accessing reactive functions,
  without them invalidating their parent contexts.

* Fix issue #58: bug where reactive functions are not re-run when all items in
  a checkboxGroup are unchecked.

* Fix issue #71, where `reactiveTable()` would return blank if the first
  element of a data frame was NA.

* In `plotOutput`, better validation for CSS units when specifying width and
  height.

* `reactivePrint()` no longer displays invisible output.

* `reactiveText()` no longer displays printed output, only the return value
  from a function.

* The `runGitHub()` and `runUrl()` functions have been added, for running
  Shiny apps from GitHub repositories and zip/tar files at remote URLs.

* Fix issue #64, where pressing Enter in a textbox would cause a form to
  submit.

shiny 0.2.4
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* `runGist` has been updated to use the new download URLs from
  https://gist.github.com.

* Shiny now uses `CairoPNG()` for output, when the Cairo package is available.
  This provides better-looking output on Linux and Windows.

shiny 0.2.3
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* Ignore request variables for routing purposes

shiny 0.2.2
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* Fix CRAN warning (assigning to global environment)


shiny 0.2.1
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* [BREAKING] Modify API of `downloadHandler`: The `content` function now takes
  a file path, not writable connection, as an argument. This makes it much
  easier to work with APIs that only write to file paths, not connections.


shiny 0.2.0
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* Fix subtle name resolution bug--the usual symptom being S4 methods not being
  invoked correctly when called from inside of ui.R or server.R


shiny 0.1.14
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* Fix slider animator, which broke in 0.1.10


shiny 0.1.13
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* Fix temp file leak in reactivePlot


shiny 0.1.12
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* Fix problems with runGist on Windows
* Add feature for on-the-fly file downloads (e.g. CSV data, PDFs)
* Add CSS hooks for app-wide busy indicators


shiny 0.1.11
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* Fix input binding with IE8 on Shiny Server
* Fix issue #41: reactiveTable should allow print options too
* Allow dynamic sizing of reactivePlot (i.e. using a function instead of a fixed
  value)


shiny 0.1.10
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* Support more MIME types when serving out of www
* Fix issue #35: Allow modification of untar args
* headerPanel can take an explicit window title parameter
* checkboxInput uses correct attribute `checked` instead of `selected`
* Fix plot rendering with IE8 on Shiny Server


shiny 0.1.9
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* Much less flicker when updating plots
* More customizable error display
* Add `includeText`, `includeHTML`, and `includeMarkdown` functions for putting
  text, HTML, and Markdown content from external files in the application's UI.


shiny 0.1.8
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* Add `runGist` function for conveniently running a Shiny app that is published
  on gist.github.com.
* Fix issue #27: Warnings cause reactive functions to stop executing.
* The server.R and ui.R filenames are now case insensitive.
* Add `wellPanel` function for creating inset areas on the page.
* Add `bootstrapPage` function for creating new Twitter Bootstrap based
  layouts from scratch.


shiny 0.1.7
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* Fix issue #26: Shiny.OutputBindings not correctly exported.
* Add `repeatable` function for making easily repeatable versions of random
  number generating functions.
* Transcode JSON into UTF-8 (prevents non-ASCII reactivePrint values from
  causing errors on Windows).


shiny 0.1.6
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* Import package dependencies, instead of attaching them (with the exception of
  websockets, which doesn't currently work unless attached).
* conditionalPanel was animated, now it is not.
* bindAll was not correctly sending initial values to the server; fixed.


shiny 0.1.5
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* BREAKING CHANGE: JS APIs Shiny.bindInput and Shiny.bindOutput removed and
  replaced with Shiny.bindAll; Shiny.unbindInput and Shiny.unbindOutput removed
  and replaced with Shiny.unbindAll.
* Add file upload support (currently only works with Chrome and Firefox). Use
  a normal HTML file input, or call the `fileInput` UI function.
* Shiny.unbindOutputs did not work, now it does.
* Generally improved robustness of dynamic input/output bindings.
* Add conditionalPanel UI function to allow showing/hiding UI based on a JS
  expression; for example, whether an input is a particular value. Also works in
  raw HTML (add the `data-display-if` attribute to the element that should be
  shown/hidden).
* htmlOutput (CSS class `shiny-html-output`) can contain inputs and outputs.


shiny 0.1.4
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* Allow Bootstrap tabsets to act as reactive inputs; their value indicates which
  tab is active
* Upgrade to Bootstrap 2.1
* Add `checkboxGroupInput` control, which presents a list of checkboxes and
  returns a vector of the selected values
* Add `addResourcePath`, intended for reusable component authors to access CSS,
  JavaScript, image files, etc. from their package directories
* Add Shiny.bindInputs(scope), .unbindInputs(scope), .bindOutputs(scope), and
  .unbindOutputs(scope) JS API calls to allow dynamic binding/unbinding of HTML
  elements


shiny 0.1.3
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* Introduce Shiny.inputBindings.register JS API and InputBinding class, for
  creating custom input controls
* Add `step` parameter to numericInput
* Read names of input using `names(input)`
* Access snapshot of input as a list using `as.list(input)` 
* Fix issue #10: Plots in tabsets not rendered


shiny 0.1.2
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Initial private beta release!