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class InsertMode extends Mode
# There is one permanently-installed instance of InsertMode. This allows PostFindMode to query the active
# element.
@permanentInstance: null
constructor: (options = {}) ->
InsertMode.permanentInstance ||= @
@global = options.global
defaults =
name: "insert"
keydown: (event) => @handleKeydownEvent event
keypress: (event) => @handleKeyEvent event
keyup: (event) => @handleKeyEvent event
super extend defaults, options
@insertModeLock = if options.targetElement? then options.targetElement else null
@push
"blur": (event) => @alwaysContinueBubbling =>
if DomUtils.isFocusable event.target
@exit event, event.target
Mode.updateBadge()
"focus": (event) => @alwaysContinueBubbling =>
@insertModeLock = event.target if DomUtils.isFocusable event.target
# We may already have focused an input element, so check.
@insertModeLock = document.activeElement if document.activeElement and DomUtils.isEditable document.activeElement
isActive: ->
return true if @insertModeLock != null or @global
# Some sites (e.g. inbox.google.com) change the contentEditable property on the fly (see #1245); and
# unfortunately, the focus event fires *before* the change. Therefore, we need to re-check whether the
# active element is contentEditable.
@insertModeLock = document.activeElement if document.activeElement?.isContentEditable
@insertModeLock != null
handleKeydownEvent: (event) ->
return @continueBubbling if event == InsertMode.suppressedEvent or not @isActive()
return @stopBubblingAndTrue unless KeyboardUtils.isEscape event
DomUtils.suppressKeyupAfterEscape handlerStack
@exit event, event.srcElement
Mode.updateBadge()
@suppressEvent
# Handles keypress and keyup events.
handleKeyEvent: (event) ->
if @isActive() and event != InsertMode.suppressedEvent then @stopBubblingAndTrue else @continueBubbling
exit: (_, target) ->
if target and (target == @insertModeLock or @global) and DomUtils.isFocusable target
# Remove focus so the user can't just get himself back into insert mode by typing in the same input
# box.
# NOTE(smblott, 2014/12/22) Including embeds for .blur() etc. here is experimental. It appears to be
# the right thing to do for most common use cases. However, it could also cripple flash-based sites and
# games. See discussion in #1211 and #1194.
target.blur()
if target == undefined or target == @insertModeLock or @global
@insertModeLock = null
# Now really exit, unless this is the permanently-installed instance.
super() unless @ == InsertMode.permanentInstance
chooseBadge: (badge) ->
return if badge == InsertMode.suppressedEvent
badge.badge ||= "I" if @isActive()
# Static stuff to allow PostFindMode to suppress insert mode.
@suppressedEvent: null
@suppressEvent: (event) -> @suppressedEvent = event
root = exports ? window
root.InsertMode = InsertMode
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