/
editor_controller.coffee
422 lines (323 loc) · 13.5 KB
/
editor_controller.coffee
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#= require trix/controllers/controller
#= require trix/controllers/level_0_input_controller
#= require trix/controllers/level_2_input_controller
#= require trix/controllers/composition_controller
#= require trix/controllers/toolbar_controller
#= require trix/models/composition
#= require trix/models/editor
#= require trix/models/attachment_manager
#= require trix/models/selection_manager
{rangeIsCollapsed, rangesAreEqual, objectsAreEqual, getBlockConfig} = Trix
class Trix.EditorController extends Trix.Controller
constructor: ({@editorElement, document, html}) ->
@selectionManager = new Trix.SelectionManager @editorElement
@selectionManager.delegate = this
@composition = new Trix.Composition
@composition.delegate = this
@attachmentManager = new Trix.AttachmentManager @composition.getAttachments()
@attachmentManager.delegate = this
@inputController = new Trix["Level#{Trix.config.input.getLevel()}InputController"](@editorElement)
@inputController.delegate = this
@inputController.responder = @composition
@compositionController = new Trix.CompositionController @editorElement, @composition
@compositionController.delegate = this
@toolbarController = new Trix.ToolbarController @editorElement.toolbarElement
@toolbarController.delegate = this
@editor = new Trix.Editor @composition, @selectionManager, @editorElement
if document?
@editor.loadDocument(document)
else
@editor.loadHTML(html)
registerSelectionManager: ->
Trix.selectionChangeObserver.registerSelectionManager(@selectionManager)
unregisterSelectionManager: ->
Trix.selectionChangeObserver.unregisterSelectionManager(@selectionManager)
render: ->
@compositionController.render()
reparse: ->
@composition.replaceHTML(@editorElement.innerHTML)
# Composition delegate
compositionDidChangeDocument: (document) ->
@notifyEditorElement("document-change")
@render() unless @handlingInput
compositionDidChangeCurrentAttributes: (@currentAttributes) ->
@toolbarController.updateAttributes(@currentAttributes)
@updateCurrentActions()
@notifyEditorElement("attributes-change", attributes: @currentAttributes)
compositionDidPerformInsertionAtRange: (range) ->
@pastedRange = range if @pasting
compositionShouldAcceptFile: (file) ->
@notifyEditorElement("file-accept", {file})
compositionDidAddAttachment: (attachment) ->
managedAttachment = @attachmentManager.manageAttachment(attachment)
@notifyEditorElement("attachment-add", attachment: managedAttachment)
compositionDidEditAttachment: (attachment) ->
@compositionController.rerenderViewForObject(attachment)
managedAttachment = @attachmentManager.manageAttachment(attachment)
@notifyEditorElement("attachment-edit", attachment: managedAttachment)
@notifyEditorElement("change")
compositionDidChangeAttachmentPreviewURL: (attachment) ->
@compositionController.invalidateViewForObject(attachment)
@notifyEditorElement("change")
compositionDidRemoveAttachment: (attachment) ->
managedAttachment = @attachmentManager.unmanageAttachment(attachment)
@notifyEditorElement("attachment-remove", attachment: managedAttachment)
compositionDidStartEditingAttachment: (attachment, options) ->
@attachmentLocationRange = @composition.document.getLocationRangeOfAttachment(attachment)
@compositionController.installAttachmentEditorForAttachment(attachment, options)
@selectionManager.setLocationRange(@attachmentLocationRange)
compositionDidStopEditingAttachment: (attachment) ->
@compositionController.uninstallAttachmentEditor()
@attachmentLocationRange = null
compositionDidRequestChangingSelectionToLocationRange: (locationRange) ->
return if @loadingSnapshot and not @isFocused()
@requestedLocationRange = locationRange
@compositionRevisionWhenLocationRangeRequested = @composition.revision
@render() unless @handlingInput
compositionWillLoadSnapshot: ->
@loadingSnapshot = true
compositionDidLoadSnapshot: ->
@compositionController.refreshViewCache()
@render()
@loadingSnapshot = false
getSelectionManager: ->
@selectionManager
@proxyMethod "getSelectionManager().setLocationRange"
@proxyMethod "getSelectionManager().getLocationRange"
# Attachment manager delegate
attachmentManagerDidRequestRemovalOfAttachment: (attachment) ->
@removeAttachment(attachment)
# Document controller delegate
compositionControllerWillSyncDocumentView: ->
@inputController.editorWillSyncDocumentView()
@selectionManager.lock()
@selectionManager.clearSelection()
compositionControllerDidSyncDocumentView: ->
@inputController.editorDidSyncDocumentView()
@selectionManager.unlock()
@updateCurrentActions()
@notifyEditorElement("sync")
compositionControllerDidRender: ->
if @requestedLocationRange?
if @compositionRevisionWhenLocationRangeRequested is @composition.revision
@selectionManager.setLocationRange(@requestedLocationRange)
@requestedLocationRange = null
@compositionRevisionWhenLocationRangeRequested = null
unless @renderedCompositionRevision is @composition.revision
@runEditorFilters()
@composition.updateCurrentAttributes()
@notifyEditorElement("render")
@renderedCompositionRevision = @composition.revision
compositionControllerDidFocus: ->
@setLocationRange(index: 0, offset: 0) if @isFocusedInvisibly()
@toolbarController.hideDialog()
@notifyEditorElement("focus")
compositionControllerDidBlur: ->
@notifyEditorElement("blur")
compositionControllerDidSelectAttachment: (attachment, options) ->
@toolbarController.hideDialog()
@composition.editAttachment(attachment, options)
compositionControllerDidRequestDeselectingAttachment: (attachment) ->
locationRange = @attachmentLocationRange ? @composition.document.getLocationRangeOfAttachment(attachment)
@selectionManager.setLocationRange(locationRange[1])
compositionControllerWillUpdateAttachment: (attachment) ->
@editor.recordUndoEntry("Edit Attachment", context: attachment.id, consolidatable: true)
compositionControllerDidRequestRemovalOfAttachment: (attachment) ->
@removeAttachment(attachment)
# Input controller delegate
inputControllerWillHandleInput: ->
@handlingInput = true
@requestedRender = false
inputControllerDidRequestRender: ->
@requestedRender = true
inputControllerDidHandleInput: ->
@handlingInput = false
if @requestedRender
@requestedRender = false
@render()
inputControllerDidAllowUnhandledInput: ->
@notifyEditorElement("change")
inputControllerDidRequestReparse: ->
@reparse()
inputControllerWillPerformTyping: ->
@recordTypingUndoEntry()
inputControllerWillPerformFormatting: (attributeName) ->
@recordFormattingUndoEntry(attributeName)
inputControllerWillCutText: ->
@editor.recordUndoEntry("Cut")
inputControllerWillPaste: (paste) ->
@editor.recordUndoEntry("Paste")
@pasting = true
@notifyEditorElement("before-paste", {paste})
inputControllerDidPaste: (paste) ->
paste.range = @pastedRange
@pastedRange = null
@pasting = null
@notifyEditorElement("paste", {paste})
inputControllerWillMoveText: ->
@editor.recordUndoEntry("Move")
inputControllerWillAttachFiles: ->
@editor.recordUndoEntry("Drop Files")
inputControllerWillPerformUndo: ->
@editor.undo()
inputControllerWillPerformRedo: ->
@editor.redo()
inputControllerDidReceiveKeyboardCommand: (keys) ->
@toolbarController.applyKeyboardCommand(keys)
inputControllerDidStartDrag: ->
@locationRangeBeforeDrag = @selectionManager.getLocationRange()
inputControllerDidReceiveDragOverPoint: (point) ->
@selectionManager.setLocationRangeFromPointRange(point)
inputControllerDidCancelDrag: ->
@selectionManager.setLocationRange(@locationRangeBeforeDrag)
@locationRangeBeforeDrag = null
# Selection manager delegate
locationRangeDidChange: (locationRange) ->
@composition.updateCurrentAttributes()
@updateCurrentActions()
if @attachmentLocationRange and not rangesAreEqual(@attachmentLocationRange, locationRange)
@composition.stopEditingAttachment()
@notifyEditorElement("selection-change")
# Toolbar controller delegate
toolbarDidClickButton: ->
@setLocationRange(index: 0, offset: 0) unless @getLocationRange()
toolbarDidInvokeAction: (actionName) ->
@invokeAction(actionName)
toolbarDidToggleAttribute: (attributeName) ->
@recordFormattingUndoEntry(attributeName)
@composition.toggleCurrentAttribute(attributeName)
@render()
@editorElement.focus() unless @selectionFrozen
toolbarDidUpdateAttribute: (attributeName, value) ->
@recordFormattingUndoEntry(attributeName)
@composition.setCurrentAttribute(attributeName, value)
@render()
@editorElement.focus() unless @selectionFrozen
toolbarDidRemoveAttribute: (attributeName) ->
@recordFormattingUndoEntry(attributeName)
@composition.removeCurrentAttribute(attributeName)
@render()
@editorElement.focus() unless @selectionFrozen
toolbarWillShowDialog: (dialogElement) ->
@composition.expandSelectionForEditing()
@freezeSelection()
toolbarDidShowDialog: (dialogName) ->
@notifyEditorElement("toolbar-dialog-show", {dialogName})
toolbarDidHideDialog: (dialogName) ->
@thawSelection()
@editorElement.focus()
@notifyEditorElement("toolbar-dialog-hide", {dialogName})
# Selection
freezeSelection: ->
unless @selectionFrozen
@selectionManager.lock()
@composition.freezeSelection()
@selectionFrozen = true
@render()
thawSelection: ->
if @selectionFrozen
@composition.thawSelection()
@selectionManager.unlock()
@selectionFrozen = false
@render()
# Actions
actions:
undo:
test: -> @editor.canUndo()
perform: -> @editor.undo()
redo:
test: -> @editor.canRedo()
perform: -> @editor.redo()
link:
test: -> @editor.canActivateAttribute("href")
increaseNestingLevel:
test: -> @editor.canIncreaseNestingLevel()
perform: -> @editor.increaseNestingLevel() and @render()
decreaseNestingLevel:
test: -> @editor.canDecreaseNestingLevel()
perform: -> @editor.decreaseNestingLevel() and @render()
attachFiles:
test: -> true
perform: -> Trix.config.input.pickFiles(@editor.insertFiles)
canInvokeAction: (actionName) ->
if @actionIsExternal(actionName)
true
else
!! @actions[actionName]?.test?.call(this)
invokeAction: (actionName) ->
if @actionIsExternal(actionName)
@notifyEditorElement("action-invoke", {actionName})
else
@actions[actionName]?.perform?.call(this)
actionIsExternal: (actionName) ->
/^x-./.test(actionName)
getCurrentActions: ->
result = {}
for actionName of @actions
result[actionName] = @canInvokeAction(actionName)
result
updateCurrentActions: ->
currentActions = @getCurrentActions()
unless objectsAreEqual(currentActions, @currentActions)
@currentActions = currentActions
@toolbarController.updateActions(@currentActions)
@notifyEditorElement("actions-change", actions: @currentActions)
# Editor filters
runEditorFilters: ->
snapshot = @composition.getSnapshot()
for filter in @editor.filters
{document, selectedRange} = snapshot
snapshot = filter.call(@editor, snapshot) ? {}
snapshot.document ?= document
snapshot.selectedRange ?= selectedRange
unless snapshotsAreEqual(snapshot, @composition.getSnapshot())
@composition.loadSnapshot(snapshot)
snapshotsAreEqual = (a, b) ->
rangesAreEqual(a.selectedRange, b.selectedRange) and
a.document.isEqualTo(b.document)
# Private
updateInputElement: ->
element = @compositionController.getSerializableElement()
value = Trix.serializeToContentType(element, "text/html")
@editorElement.setInputElementValue(value)
notifyEditorElement: (message, data) ->
switch message
when "document-change"
@documentChangedSinceLastRender = true
when "render"
if @documentChangedSinceLastRender
@documentChangedSinceLastRender = false
@notifyEditorElement("change")
when "change", "attachment-add", "attachment-edit", "attachment-remove"
@updateInputElement()
@editorElement.notify(message, data)
removeAttachment: (attachment) ->
@editor.recordUndoEntry("Delete Attachment")
@composition.removeAttachment(attachment)
@render()
recordFormattingUndoEntry: (attributeName) ->
blockConfig = getBlockConfig(attributeName)
locationRange = @selectionManager.getLocationRange()
if blockConfig or not rangeIsCollapsed(locationRange)
@editor.recordUndoEntry("Formatting", context: @getUndoContext(), consolidatable: true)
recordTypingUndoEntry: ->
@editor.recordUndoEntry("Typing", context: @getUndoContext(@currentAttributes), consolidatable: true)
getUndoContext: (context...) ->
[@getLocationContext(), @getTimeContext(), context...]
getLocationContext: ->
locationRange = @selectionManager.getLocationRange()
if rangeIsCollapsed(locationRange)
locationRange[0].index
else
locationRange
getTimeContext: ->
if Trix.config.undoInterval > 0
Math.floor(new Date().getTime() / Trix.config.undoInterval)
else
0
isFocused: ->
@editorElement is @editorElement.ownerDocument?.activeElement
# Detect "Cursor disappears sporadically" Firefox bug.
# - https://bugzilla.mozilla.org/show_bug.cgi?id=226301
isFocusedInvisibly: ->
@isFocused() and not @getLocationRange()