ClipboardMarkersUtils
Part of the clipboard logic. Responsible for collecting markers from selected fragments and restoring them with proper positions in pasted elements.
Properties
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module:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#editorThe editor instance.
Note that most editors implement the
uiproperty. However, editors with an external UI (i.e. Bootstrap-based) or a headless editor may not have this property or throw an error when accessing it.Because of above, to make plugins more universal, it is recommended to split features into:
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isEnabled : booleanmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#isEnabledFlag indicating whether a plugin is enabled or disabled. A disabled plugin will not transform text.
Plugin can be simply disabled like that:
// Disable the plugin so that no toolbars are visible. editor.plugins.get( 'TextTransformation' ).isEnabled = false;Copy codeYou can also use
forceDisabledmethod. -
_markersToCopy : Map<string, ClipboardMarkerConfiguration>internalmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_markersToCopyMap of marker names that can be copied.
Static properties
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isContextPlugin : falsereadonlyinheritedstaticmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils.isContextPlugin -
pluginName : 'ClipboardMarkersUtils'readonlystaticmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils.pluginName -
isOfficialPlugin : trueinternalreadonlystaticmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils.isOfficialPlugin -
isPremiumPlugin : booleaninternalreadonlyinheritedstaticmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils.isPremiumPlugin
Methods
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constructor( editor )inheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#constructor -
_hasMarkerConfiguration( markerName ) → booleanmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_hasMarkerConfigurationChecks if marker has any clipboard copy behavior configuration.
Parameters
markerName : stringName of checked marker.
Returns
boolean
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bind( bindProperty1, bindProperty2 ) → ObservableDualBindChain<K1, ClipboardMarkersUtils[ K1 ], K2, ClipboardMarkersUtils[ K2 ]>inheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#bind:DUAL_BINDBinds observable properties to other objects implementing the
Observableinterface.Read more in the dedicated guide covering the topic of property bindings with some additional examples.
Consider two objects: a
buttonand an associatedcommand(bothObservable).A simple property binding could be as follows:
button.bind( 'isEnabled' ).to( command, 'isEnabled' );Copy codeor even shorter:
button.bind( 'isEnabled' ).to( command );Copy codewhich works in the following way:
button.isEnabledinstantly equalscommand.isEnabled,- whenever
command.isEnabledchanges,button.isEnabledwill immediately reflect its value.
Note: To release the binding, use
unbind.You can also "rename" the property in the binding by specifying the new name in the
to()chain:button.bind( 'isEnabled' ).to( command, 'isWorking' );Copy codeIt is possible to bind more than one property at a time to shorten the code:
button.bind( 'isEnabled', 'value' ).to( command );Copy codewhich corresponds to:
button.bind( 'isEnabled' ).to( command ); button.bind( 'value' ).to( command );Copy codeThe binding can include more than one observable, combining multiple data sources in a custom callback:
button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible', ( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );Copy codeUsing a custom callback allows processing the value before passing it to the target property:
button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );Copy codeIt is also possible to bind to the same property in an array of observables. To bind a
buttonto multiple commands (alsoObservables) so that each and every one of them must be enabled for the button to become enabled, use the following code:button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled', ( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );Copy codeType parameters
K1K2
Parameters
bindProperty1 : K1Observable property that will be bound to other observable(s).
bindProperty2 : K2Observable property that will be bound to other observable(s).
Returns
ObservableDualBindChain<K1, ClipboardMarkersUtils[ K1 ], K2, ClipboardMarkersUtils[ K2 ]>The bind chain with the
to()andtoMany()methods.
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bind( bindProperties ) → ObservableMultiBindChaininheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#bind:MANY_BINDBinds observable properties to other objects implementing the
Observableinterface.Read more in the dedicated guide covering the topic of property bindings with some additional examples.
Consider two objects: a
buttonand an associatedcommand(bothObservable).A simple property binding could be as follows:
button.bind( 'isEnabled' ).to( command, 'isEnabled' );Copy codeor even shorter:
button.bind( 'isEnabled' ).to( command );Copy codewhich works in the following way:
button.isEnabledinstantly equalscommand.isEnabled,- whenever
command.isEnabledchanges,button.isEnabledwill immediately reflect its value.
Note: To release the binding, use
unbind.You can also "rename" the property in the binding by specifying the new name in the
to()chain:button.bind( 'isEnabled' ).to( command, 'isWorking' );Copy codeIt is possible to bind more than one property at a time to shorten the code:
button.bind( 'isEnabled', 'value' ).to( command );Copy codewhich corresponds to:
button.bind( 'isEnabled' ).to( command ); button.bind( 'value' ).to( command );Copy codeThe binding can include more than one observable, combining multiple data sources in a custom callback:
button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible', ( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );Copy codeUsing a custom callback allows processing the value before passing it to the target property:
button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );Copy codeIt is also possible to bind to the same property in an array of observables. To bind a
buttonto multiple commands (alsoObservables) so that each and every one of them must be enabled for the button to become enabled, use the following code:button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled', ( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );Copy codeParameters
bindProperties : Array<'off' | 'set' | 'bind' | 'unbind' | 'decorate' | 'stopListening' | 'on' | 'once' | 'listenTo' | 'fire' | 'delegate' | 'stopDelegating' | 'destroy' | 'isEnabled' | 'editor' | 'forceDisabled' | 'clearForceDisabled' | '_registerMarkerToCopy' | '_copySelectedFragmentWithMarkers' | '_pasteMarkersIntoTransformedElement' | '_pasteFragmentWithMarkers' | '_forceMarkersCopy' | '_isMarkerCopyable' | '_hasMarkerConfiguration' | '_getMarkerClipboardConfig'>Observable properties that will be bound to other observable(s).
Returns
ObservableMultiBindChainThe bind chain with the
to()andtoMany()methods.
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bind( bindProperty ) → ObservableSingleBindChain<K, ClipboardMarkersUtils[ K ]>inheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#bind:SINGLE_BINDBinds observable properties to other objects implementing the
Observableinterface.Read more in the dedicated guide covering the topic of property bindings with some additional examples.
Consider two objects: a
buttonand an associatedcommand(bothObservable).A simple property binding could be as follows:
button.bind( 'isEnabled' ).to( command, 'isEnabled' );Copy codeor even shorter:
button.bind( 'isEnabled' ).to( command );Copy codewhich works in the following way:
button.isEnabledinstantly equalscommand.isEnabled,- whenever
command.isEnabledchanges,button.isEnabledwill immediately reflect its value.
Note: To release the binding, use
unbind.You can also "rename" the property in the binding by specifying the new name in the
to()chain:button.bind( 'isEnabled' ).to( command, 'isWorking' );Copy codeIt is possible to bind more than one property at a time to shorten the code:
button.bind( 'isEnabled', 'value' ).to( command );Copy codewhich corresponds to:
button.bind( 'isEnabled' ).to( command ); button.bind( 'value' ).to( command );Copy codeThe binding can include more than one observable, combining multiple data sources in a custom callback:
button.bind( 'isEnabled' ).to( command, 'isEnabled', ui, 'isVisible', ( isCommandEnabled, isUIVisible ) => isCommandEnabled && isUIVisible );Copy codeUsing a custom callback allows processing the value before passing it to the target property:
button.bind( 'isEnabled' ).to( command, 'value', value => value === 'heading1' );Copy codeIt is also possible to bind to the same property in an array of observables. To bind a
buttonto multiple commands (alsoObservables) so that each and every one of them must be enabled for the button to become enabled, use the following code:button.bind( 'isEnabled' ).toMany( [ commandA, commandB, commandC ], 'isEnabled', ( isAEnabled, isBEnabled, isCEnabled ) => isAEnabled && isBEnabled && isCEnabled );Copy codeType parameters
K
Parameters
bindProperty : KObservable property that will be bound to other observable(s).
Returns
ObservableSingleBindChain<K, ClipboardMarkersUtils[ K ]>The bind chain with the
to()andtoMany()methods.
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clearForceDisabled( id ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#clearForceDisabledClears forced disable previously set through
forceDisabled. SeeforceDisabled.Parameters
id : stringUnique identifier, equal to the one passed in
forceDisabledcall.
Returns
void
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decorate( methodName ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#decorateTurns the given methods of this object into event-based ones. This means that the new method will fire an event (named after the method) and the original action will be plugged as a listener to that event.
Read more in the dedicated guide covering the topic of decorating methods with some additional examples.
Decorating the method does not change its behavior (it only adds an event), but it allows to modify it later on by listening to the method's event.
For example, to cancel the method execution the event can be stopped:
class Foo extends ObservableMixin() { constructor() { super(); this.decorate( 'method' ); } method() { console.log( 'called!' ); } } const foo = new Foo(); foo.on( 'method', ( evt ) => { evt.stop(); }, { priority: 'high' } ); foo.method(); // Nothing is logged.Copy codeNote: The high priority listener has been used to execute this particular callback before the one which calls the original method (which uses the "normal" priority).
It is also possible to change the returned value:
foo.on( 'method', ( evt ) => { evt.return = 'Foo!'; } ); foo.method(); // -> 'Foo'Copy codeFinally, it is possible to access and modify the arguments the method is called with:
method( a, b ) { console.log( `${ a }, ${ b }` ); } // ... foo.on( 'method', ( evt, args ) => { args[ 0 ] = 3; console.log( args[ 1 ] ); // -> 2 }, { priority: 'high' } ); foo.method( 1, 2 ); // -> '3, 2'Copy codeParameters
methodName : 'off' | 'set' | 'bind' | 'unbind' | 'decorate' | 'stopListening' | 'on' | 'once' | 'listenTo' | 'fire' | 'delegate' | 'stopDelegating' | 'destroy' | 'isEnabled' | 'editor' | 'forceDisabled' | 'clearForceDisabled' | '_registerMarkerToCopy' | '_copySelectedFragmentWithMarkers' | '_pasteMarkersIntoTransformedElement' | '_pasteFragmentWithMarkers' | '_forceMarkersCopy' | '_isMarkerCopyable' | '_hasMarkerConfiguration' | '_getMarkerClipboardConfig'Name of the method to decorate.
Returns
void
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delegate( events ) → EmitterMixinDelegateChaininheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#delegateDelegates selected events to another
Emitter. For instance:emitterA.delegate( 'eventX' ).to( emitterB ); emitterA.delegate( 'eventX', 'eventY' ).to( emitterC );Copy codethen
eventXis delegated (fired by)emitterBandemitterCalong withdata:emitterA.fire( 'eventX', data );Copy codeand
eventYis delegated (fired by)emitterCalong withdata:emitterA.fire( 'eventY', data );Copy codeParameters
events : Array<string>Event names that will be delegated to another emitter.
Returns
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destroy() → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#destroyDestroys the plugin.
Note: This method is optional. A plugin instance does not need to have it defined.
Returns
void
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fire( eventOrInfo, args ) → GetEventInfo<TEvent>[ 'return' ]inheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#fireFires an event, executing all callbacks registered for it.
The first parameter passed to callbacks is an
EventInfoobject, followed by the optionalargsprovided in thefire()method call.Type parameters
Parameters
eventOrInfo : GetNameOrEventInfo<TEvent>The name of the event or
EventInfoobject if event is delegated.args : TEvent[ 'args' ]Additional arguments to be passed to the callbacks.
Returns
GetEventInfo<TEvent>[ 'return' ]By default the method returns
undefined. However, the return value can be changed by listeners through modification of theevt.return's property (the event info is the first param of every callback).
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forceDisabled( id ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#forceDisabledDisables the plugin.
Plugin may be disabled by multiple features or algorithms (at once). When disabling a plugin, unique id should be passed (e.g. feature name). The same identifier should be used when enabling back the plugin. The plugin becomes enabled only after all features enabled it back.
Disabling and enabling a plugin:
plugin.isEnabled; // -> true plugin.forceDisabled( 'MyFeature' ); plugin.isEnabled; // -> false plugin.clearForceDisabled( 'MyFeature' ); plugin.isEnabled; // -> trueCopy codePlugin disabled by multiple features:
plugin.forceDisabled( 'MyFeature' ); plugin.forceDisabled( 'OtherFeature' ); plugin.clearForceDisabled( 'MyFeature' ); plugin.isEnabled; // -> false plugin.clearForceDisabled( 'OtherFeature' ); plugin.isEnabled; // -> trueCopy codeMultiple disabling with the same identifier is redundant:
plugin.forceDisabled( 'MyFeature' ); plugin.forceDisabled( 'MyFeature' ); plugin.clearForceDisabled( 'MyFeature' ); plugin.isEnabled; // -> trueCopy codeNote: some plugins or algorithms may have more complex logic when it comes to enabling or disabling certain plugins, so the plugin might be still disabled after
clearForceDisabledwas used.Parameters
id : stringUnique identifier for disabling. Use the same id when enabling back the plugin.
Returns
void
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listenTo( emitter, event, callback, [ options ] ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#listenTo:BASE_EMITTERRegisters a callback function to be executed when an event is fired in a specific (emitter) object.
Events can be grouped in namespaces using
:. When namespaced event is fired, it additionally fires all callbacks for that namespace.// myEmitter.on( ... ) is a shorthand for myEmitter.listenTo( myEmitter, ... ). myEmitter.on( 'myGroup', genericCallback ); myEmitter.on( 'myGroup:myEvent', specificCallback ); // genericCallback is fired. myEmitter.fire( 'myGroup' ); // both genericCallback and specificCallback are fired. myEmitter.fire( 'myGroup:myEvent' ); // genericCallback is fired even though there are no callbacks for "foo". myEmitter.fire( 'myGroup:foo' );Copy codeAn event callback can stop the event and set the return value of the
firemethod.Type parameters
Parameters
emitter : EmitterThe object that fires the event.
event : TEvent[ 'name' ]The name of the event.
callback : GetCallback<TEvent>The function to be called on event.
[ options ] : GetCallbackOptions<TEvent>Additional options.
Returns
void
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off( event, callback ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#offStops executing the callback on the given event. Shorthand for
this.stopListening( this, event, callback ).Parameters
event : stringThe name of the event.
callback : FunctionThe function to stop being called.
Returns
void
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on( event, callback, [ options ] ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#onRegisters a callback function to be executed when an event is fired.
Shorthand for
this.listenTo( this, event, callback, options )(it makes the emitter listen on itself).Type parameters
Parameters
event : TEvent[ 'name' ]The name of the event.
callback : GetCallback<TEvent>The function to be called on event.
[ options ] : GetCallbackOptions<TEvent>Additional options.
Returns
void
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once( event, callback, [ options ] ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#onceRegisters a callback function to be executed on the next time the event is fired only. This is similar to calling
onfollowed byoffin the callback.Type parameters
Parameters
event : TEvent[ 'name' ]The name of the event.
callback : GetCallback<TEvent>The function to be called on event.
[ options ] : GetCallbackOptions<TEvent>Additional options.
Returns
void
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set( values ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#set:OBJECTCreates and sets the value of an observable properties of this object. Such a property becomes a part of the state and is observable.
It accepts a single object literal containing key/value pairs with properties to be set.
This method throws the
observable-set-cannot-overrideerror if the observable instance already has a property with the given property name. This prevents from mistakenly overriding existing properties and methods, but means thatfoo.set( 'bar', 1 )may be slightly slower thanfoo.bar = 1.In TypeScript, those properties should be declared in class using
declarekeyword. In example:public declare myProp1: number; public declare myProp2: string; constructor() { this.set( { 'myProp1: 2, 'myProp2: 'foo' } ); }Copy codeParameters
values : objectAn object with
name=>valuepairs.
Returns
void
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set( name, value ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#set:KEY_VALUECreates and sets the value of an observable property of this object. Such a property becomes a part of the state and is observable.
This method throws the
observable-set-cannot-overrideerror if the observable instance already has a property with the given property name. This prevents from mistakenly overriding existing properties and methods, but means thatfoo.set( 'bar', 1 )may be slightly slower thanfoo.bar = 1.In TypeScript, those properties should be declared in class using
declarekeyword. In example:public declare myProp: number; constructor() { this.set( 'myProp', 2 ); }Copy codeType parameters
K
Parameters
name : KThe property's name.
value : ClipboardMarkersUtils[ K ]The property's value.
Returns
void
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stopDelegating( [ event ], [ emitter ] ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#stopDelegatingStops delegating events. It can be used at different levels:
- To stop delegating all events.
- To stop delegating a specific event to all emitters.
- To stop delegating a specific event to a specific emitter.
Parameters
[ event ] : stringThe name of the event to stop delegating. If omitted, stops it all delegations.
[ emitter ] : Emitter(requires
event) The object to stop delegating a particular event to. If omitted, stops delegation ofeventto all emitters.
Returns
void
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stopListening( [ emitter ], [ event ], [ callback ] ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#stopListening:BASE_STOPStops listening for events. It can be used at different levels:
- To stop listening to a specific callback.
- To stop listening to a specific event.
- To stop listening to all events fired by a specific object.
- To stop listening to all events fired by all objects.
Parameters
[ emitter ] : EmitterThe object to stop listening to. If omitted, stops it for all objects.
[ event ] : string(Requires the
emitter) The name of the event to stop listening to. If omitted, stops it for all events fromemitter.[ callback ] : Function(Requires the
event) The function to be removed from the call list for the givenevent.
Returns
void
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unbind( unbindProperties ) → voidinheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#unbindRemoves the binding created with
bind.// Removes the binding for the 'a' property. A.unbind( 'a' ); // Removes bindings for all properties. A.unbind();Copy codeParameters
unbindProperties : Array<'off' | 'set' | 'bind' | 'unbind' | 'decorate' | 'stopListening' | 'on' | 'once' | 'listenTo' | 'fire' | 'delegate' | 'stopDelegating' | 'destroy' | 'isEnabled' | 'editor' | 'forceDisabled' | 'clearForceDisabled' | '_registerMarkerToCopy' | '_copySelectedFragmentWithMarkers' | '_pasteMarkersIntoTransformedElement' | '_pasteFragmentWithMarkers' | '_forceMarkersCopy' | '_isMarkerCopyable' | '_hasMarkerConfiguration' | '_getMarkerClipboardConfig'>Observable properties to be unbound. All the bindings will be released if no properties are provided.
Returns
void
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_copySelectedFragmentWithMarkers( action, selection, getCopiedFragment ) → ModelDocumentFragmentinternalmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_copySelectedFragmentWithMarkersPerforms copy markers on provided selection and paste it to fragment returned from
getCopiedFragment.1. Picks all markers in provided selection. 2. Inserts fake markers to document. 3. Gets copied selection fragment from document. 4. Removes fake elements from fragment and document. 5. Inserts markers in the place of removed fake markers.Copy codeDue to selection modification, when inserting items,
getCopiedFragmentmust always operate on `writer.model.document.selection'. Do not use any other custom selection object within callback, as this will lead to out-of-bounds exceptions in rare scenarios.Parameters
action : ClipboardMarkerRestrictedActionType of clipboard action.
selection : ModelSelection | ModelDocumentSelectionSelection to be checked.
getCopiedFragment : ( writer: ModelWriter ) => ModelDocumentFragmentCallback that performs copy of selection and returns it as fragment.
Defaults to
...
Returns
-
_forceMarkersCopy( markerName, executor, config ) → voidinternalmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_forceMarkersCopyIn some situations we have to perform copy on selected fragment with certain markers. This function allows to temporarily bypass restrictions on markers that we want to copy.
This function executes
executor()callback. For the duration of the callback, if the clipboard pipeline is used to copy content, markers with the specified name will be copied to the clipboard as well.Parameters
markerName : stringWhich markers should be copied.
executor : VoidFunctionCallback executed.
config : ClipboardMarkerConfigurationOptional configuration flags used to copy (such like partial copy flag).
Defaults to
...
Returns
void
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_getMarkerClipboardConfig( markerName ) → null | ClipboardMarkerConfigurationinternalmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_getMarkerClipboardConfigReturns marker's configuration flags passed during registration.
Parameters
markerName : stringName of marker that should be returned.
Returns
null | ClipboardMarkerConfiguration
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_isMarkerCopyable( markerName, action ) → booleaninternalmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_isMarkerCopyableChecks if marker can be copied.
Parameters
markerName : stringName of checked marker.
action : null | ClipboardMarkerRestrictedActionType of clipboard action. If null then checks only if marker is registered as copyable.
Returns
boolean
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_pasteFragmentWithMarkers( fragment ) → ModelRangeinternalmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_pasteFragmentWithMarkersPastes document fragment with markers to document. If
duplicateOnPasteistruein marker config then associated markers IDs are regenerated before pasting to avoid markers duplications in content.Parameters
fragment : ModelDocumentFragmentDocument fragment that should contain already processed by pipeline markers.
Returns
-
_pasteMarkersIntoTransformedElement( markers, getPastedDocumentElement ) → ModelElementinternalmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_pasteMarkersIntoTransformedElementPerforms paste of markers on already pasted element.
1. Inserts fake markers that are present in fragment element (such fragment will be processed in `getPastedDocumentElement`). 2. Calls `getPastedDocumentElement` and gets element that is inserted into root model. 3. Removes all fake markers present in transformed element. 4. Inserts new markers with removed fake markers ranges into pasted fragment.Copy codeThere are multiple edge cases that have to be considered before calling this function:
* `markers` are inserted into the same element that must be later transformed inside `getPastedDocumentElement`. * Fake marker elements inside `getPastedDocumentElement` can be cloned, but their ranges cannot overlap. * If `duplicateOnPaste` is `true` in marker config then associated marker ID is regenerated before pasting.Copy codeParameters
markers : Map<string, ModelRange> | Record<string, ModelRange>Object that maps marker name to corresponding range.
getPastedDocumentElement : ( writer: ModelWriter ) => ModelElementGetter used to get target markers element.
Returns
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_registerMarkerToCopy( markerName, config ) → voidinternalmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_registerMarkerToCopyRegisters marker name as copyable in clipboard pipeline.
Parameters
markerName : stringName of marker that can be copied.
config : ClipboardMarkerConfigurationConfiguration that describes what can be performed on specified marker.
Returns
void
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_getAllFakeMarkersFromElement( writer, rootElement ) → Array<FakeMarker>privatemodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_getAllFakeMarkersFromElementReturns array that contains list of fake markers with corresponding
$markerelements.For each marker, there can be two
$markerelements or only one (if the document fragment contained only the beginning or only the end of a marker).Parameters
writer : ModelWriterAn instance of the model writer.
rootElement : ModelElement | ModelDocumentFragmentThe element to be checked.
Returns
Array<FakeMarker>
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_getCopyableMarkersFromSelection( writer, selection, action ) → Array<CopyableMarker>privatemodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_getCopyableMarkersFromSelectionReturns array of markers that can be copied in specified selection.
If marker cannot be copied partially (according to
copyPartiallySelectedconfiguration flag) and is not present entirely in any selection range then it will be skipped.Parameters
writer : ModelWriterAn instance of the model writer.
selection : ModelSelection | ModelDocumentSelectionSelection which will be checked.
action : null | ClipboardMarkerRestrictedActionType of clipboard action. If null then checks only if marker is registered as copyable.
Returns
Array<CopyableMarker>
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_getPasteMarkersFromRangeMap( markers, action ) → Array<CopyableMarker>privatemodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_getPasteMarkersFromRangeMapPicks all markers from markers map that can be pasted. If
duplicateOnPasteistrue, it regenerates their IDs to ensure uniqueness. If marker is not registered, it will be kept in the array anyway.Parameters
markers : Map<string, ModelRange> | Record<string, ModelRange>Object that maps marker name to corresponding range.
action : null | ClipboardMarkerRestrictedActionType of clipboard action. If null then checks only if marker is registered as copyable.
Defaults to
null
Returns
Array<CopyableMarker>
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_getUniqueMarkerName( name ) → stringprivatemodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_getUniqueMarkerNameWhen copy of markers occurs we have to make sure that pasted markers have different names than source markers. This functions helps with assigning unique part to marker name to prevent duplicated markers error.
Parameters
name : stringName of marker
Returns
string
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_insertFakeMarkersElements( writer, markers ) → Record<string, Array<ModelElement>>privatemodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_insertFakeMarkersElementsInserts specified array of fake markers elements to document and assigns them
typeandnameattributes. Fake markers elements are used to calculate position of markers on pasted fragment that were transformed during steps between copy and paste.Parameters
writer : ModelWriterAn instance of the model writer.
markers : Array<CopyableMarker>Array of markers that will be inserted.
Returns
Record<string, Array<ModelElement>>
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_insertFakeMarkersIntoSelection( writer, selection, action ) → Record<string, Array<ModelElement>>privatemodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_insertFakeMarkersIntoSelectionFirst step of copying markers. It looks for markers intersecting with given selection and inserts
$markerelements at positions where document markers start or end. This way$markerelements can be easily copied together with the rest of the content of the selection.Parameters
writer : ModelWriterAn instance of the model writer.
selection : ModelSelection | ModelDocumentSelectionSelection to be checked.
action : ClipboardMarkerRestrictedActionType of clipboard action.
Returns
Record<string, Array<ModelElement>>
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_removeFakeMarkersInsideElement( writer, rootElement ) → Record<string, ModelRange>privatemodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#_removeFakeMarkersInsideElementRemoves all
$markerelements from the given document fragment.Returns an object where keys are marker names, and values are ranges corresponding to positions where
$markerelements were inserted.If the document fragment had only one
$markerelement for given marker (start or end) the other boundary is set automatically (to the end or start of the document fragment, respectively).Parameters
writer : ModelWriterAn instance of the model writer.
rootElement : ModelElement | ModelDocumentFragmentThe element to be checked.
Returns
Record<string, ModelRange>
Events
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change:isEnabled( eventInfo, name, value, oldValue )inheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#event:change:isEnabledFired when the
isEnabledproperty changed value.Parameters
eventInfo : EventInfoAn object containing information about the fired event.
name : stringName of the changed property (
isEnabled).value : booleanNew value of the
isEnabledproperty with given key ornull, if operation should remove property.oldValue : booleanOld value of the
isEnabledproperty with given key ornull, if property was not set before.
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change:{property}( eventInfo, name, value, oldValue )inheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#event:change:{property}Fired when a property changed value.
observable.set( 'prop', 1 ); observable.on<ObservableChangeEvent<number>>( 'change:prop', ( evt, propertyName, newValue, oldValue ) => { console.log( `${ propertyName } has changed from ${ oldValue } to ${ newValue }` ); } ); observable.prop = 2; // -> 'prop has changed from 1 to 2'Copy codeParameters
eventInfo : EventInfoAn object containing information about the fired event.
name : stringThe property name.
value : TValueThe new property value.
oldValue : TValueThe previous property value.
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set:isEnabled( eventInfo, name, value, oldValue )inheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#event:set:isEnabledFired when the
isEnabledproperty is going to be set but is not set yet (before thechangeevent is fired).Parameters
eventInfo : EventInfoAn object containing information about the fired event.
name : stringName of the changed property (
isEnabled).value : booleanNew value of the
isEnabledproperty with given key ornull, if operation should remove property.oldValue : booleanOld value of the
isEnabledproperty with given key ornull, if property was not set before.
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set:{property}( eventInfo, name, value, oldValue )inheritedmodule:clipboard/clipboardmarkersutils~ClipboardMarkersUtils#event:set:{property}Fired when a property value is going to be set but is not set yet (before the
changeevent is fired).You can control the final value of the property by using the event's
returnproperty.observable.set( 'prop', 1 ); observable.on<ObservableSetEvent<number>>( 'set:prop', ( evt, propertyName, newValue, oldValue ) => { console.log( `Value is going to be changed from ${ oldValue } to ${ newValue }` ); console.log( `Current property value is ${ observable[ propertyName ] }` ); // Let's override the value. evt.return = 3; } ); observable.on<ObservableChangeEvent<number>>( 'change:prop', ( evt, propertyName, newValue, oldValue ) => { console.log( `Value has changed from ${ oldValue } to ${ newValue }` ); } ); observable.prop = 2; // -> 'Value is going to be changed from 1 to 2' // -> 'Current property value is 1' // -> 'Value has changed from 1 to 3'Copy codeNote: The event is fired even when the new value is the same as the old value.
Parameters
eventInfo : EventInfoAn object containing information about the fired event.
name : stringThe property name.
value : TValueThe new property value.
oldValue : TValueThe previous property value.