Class Controller

The class that controls the UI of a PdfView or a manually registered

Inheritance

System.Object

Controller

Namespace: PSPDFKit.UI

Assembly: PSPDFKit.dll

Syntax

public sealed class Controller : object

Constructors

Controller(WebView, Uri)

Constructs a Controller to control an query the state of the UI.

Declaration

public Controller(WebView webView, Uri css)

Parameters

Type	Name	Description
WebView	webView	A that has loaded 'PSPDFKit.js'
Uri	css	Optional URI of alternative CSS for 'PSPDFKit.js. See https://pspdfkit.com/guides/web/current/customizing-the-interface/css-customization/?search=css

Properties

AutoSave

The auto save mode. AutoSaveMode.

Declaration

public AutoSaveMode AutoSave { get; set; }

Property Value

Type	Description
AutoSaveMode

ViewState

The current ViewState of the UI. Use with ShowDocumentWithViewStateAsync(DocumentSource, ViewState) to open a new document with the current ViewState.

Declaration

public ViewState ViewState { get; }

Property Value

Type	Description
ViewState

ViewWatermark

A watermark which will be overlaid on the pages in the view. Set to null for no watermark. Usually the best place to set this is in PSPDFKit.UI.Controller.OnBeforeWatermark.

Declaration

public Watermark ViewWatermark { get; set; }

Property Value

Type	Description
Watermark

Methods

DisableAnnotationPresetUpdatingAsync(Boolean)

If annotation preset updating is disabled then any changes to the defaults made by the user will not be preserved after they are finished with the annotation. In addition, the event OnAnnotationPresetUpdate will not be fired.

Declaration

public IAsyncAction DisableAnnotationPresetUpdatingAsync(bool disableUpdates)

Parameters

Type	Name	Description
System.Boolean	disableUpdates	true disables preset updating. false enables preset updating.

Returns

Type	Description
IAsyncAction

GetAnnotationPresetsAsync()

Get the current map of annotation presets.

Declaration

public IAsyncOperation<IDictionary<string, IAnnotation>> GetAnnotationPresetsAsync()

Returns

Type	Description
IAsyncOperation<IDictionary<System.String, IAnnotation>>	A map of annotation preset name to an instance of IAnnotation with the settings.

GetCurrentPageIndexAsync()

The page index of the page that's currently visible. If there is more than one page visible this will return the page that is using the most space in the viewport. The page index is zero-based and has a maximum value of the Document's TotalPageCount - 1.

Declaration

public IAsyncOperation<int> GetCurrentPageIndexAsync()

Returns

Type	Description
IAsyncOperation<System.Int32>	A page index

GetInkSignaturesAsync()

Gets current set of ink signatures as a list of Ink annotations. See IAnnotation

Declaration

public IAsyncOperation<IList<IAnnotation>> GetInkSignaturesAsync()

Returns

Type	Description
IAsyncOperation<IList<IAnnotation>>	A list of Ink annotations.

GetInteractionModeAsync()

Gets the currently set InteractionMode

Declaration

public IAsyncOperation<InteractionMode> GetInteractionModeAsync()

Returns

Type	Description
IAsyncOperation<InteractionMode>	InteractionMode

GetLayoutModeAsync()

Gets the currently set LayoutMode.

Declaration

public IAsyncOperation<LayoutMode> GetLayoutModeAsync()

Returns

Type	Description
IAsyncOperation<LayoutMode>	The LayoutMode

GetPdfDocument()

Get the currently opened Document

Declaration

public Document GetPdfDocument()

Returns

Type	Description
Document

GetScrollModeAsync()

Gets the currently set ScrollMode.

Declaration

public IAsyncOperation<ScrollMode> GetScrollModeAsync()

Returns

Type	Description
IAsyncOperation<ScrollMode>	The ScrollMode

GetSelectedAnnotationAsync()

If an annotation is currently selected (and as well being either created or editable), this function will return the annotation.

Declaration

public IAsyncOperation<IAnnotation> GetSelectedAnnotationAsync()

Returns

Type	Description
IAsyncOperation<IAnnotation>	The currently selected annotation or null if none is selected.

GetSidebarModeAsync()

Gets the currently set SidebarMode

Declaration

public IAsyncOperation<SidebarMode> GetSidebarModeAsync()

Returns

Type	Description
IAsyncOperation<SidebarMode>	SidebarMode

GetSidebarPlacementAsync()

Gets the currently set SidebarPlacement.

Declaration

public IAsyncOperation<SidebarPlacement> GetSidebarPlacementAsync()

Returns

Type	Description
IAsyncOperation<SidebarPlacement>	SidebarPlacement

GetToolbarItems()

Gets the IToolbarItems shown.

Declaration

public IList<IToolbarItem> GetToolbarItems()

Returns

Type	Description
IList<IToolbarItem>	Current list of toolbar items

GetZoomModeAsync()

Gets the currently set ZoomMode

Declaration

public IAsyncOperation<ZoomMode> GetZoomModeAsync()

Returns

Type	Description
IAsyncOperation<ZoomMode>	ZoomMode

HighlightResultsAsync(IEnumerable<Result>)

Highlights the search results in the UI. Pass an empty list to highlight nothing.

Declaration

public IAsyncAction HighlightResultsAsync(IEnumerable<Result> results)

Parameters

Type	Name	Description
IEnumerable<Result>	results	The collection of results to highlight.

Returns

Type	Description
IAsyncAction

IsKeepFirstSpreadAsSinglePageAsync()

Is the first spread always showing a single page?

Declaration

public IAsyncOperation<bool> IsKeepFirstSpreadAsSinglePageAsync()

Returns

Type	Description
IAsyncOperation<System.Boolean>	true or false

IsPrintingAllowedAsync()

Is the printing button in the toolbar enabled or disabled?

Declaration

public IAsyncOperation<bool> IsPrintingAllowedAsync()

Returns

Type	Description
IAsyncOperation<System.Boolean>	true or false

IsReadOnlyAsync()

Is read only mode is activated?

Declaration

public IAsyncOperation<bool> IsReadOnlyAsync()

Returns

Type	Description
IAsyncOperation<System.Boolean>	true or false

IsShowingAnnotationsAsync()

Are annotations being rendered?

Declaration

public IAsyncOperation<bool> IsShowingAnnotationsAsync()

Returns

Type	Description
IAsyncOperation<System.Boolean>	true or false

IsShowingToolbarAsync()

Is the toolbar displayed?

Declaration

public IAsyncOperation<bool> IsShowingToolbarAsync()

Returns

Type	Description
IAsyncOperation<System.Boolean>	true or false

SetAnnotationPresetAsync(String, IAnnotation)

Set an annotation preset.

Declaration

public IAsyncAction SetAnnotationPresetAsync(string preset, IAnnotation settings)

Parameters

Type	Name	Description
System.String	preset	The name of the preset.
IAnnotation	settings	The annotation settings.

Returns

Type	Description
IAsyncAction

SetAnnotationPresetsAsync(IDictionary<String, IAnnotation>)

Set the current map of annotation presets.

Declaration

public IAsyncAction SetAnnotationPresetsAsync(IDictionary<string, IAnnotation> presets)

Parameters

Type	Name	Description
IDictionary<System.String, IAnnotation>	presets	A of presets.

Returns

Type	Description
IAsyncAction

SetCurrentPageIndexAsync(Int32)

Display the page at the specified index.

Declaration

public IAsyncAction SetCurrentPageIndexAsync(int pageIndex)

Parameters

Type	Name	Description
System.Int32	pageIndex	The zero-based index of the page to be displayed.

Returns

Type	Description
IAsyncAction

SetInkSignaturesAsync(IList<IAnnotation>)

Sets current set of ink signatures

Declaration

public IAsyncAction SetInkSignaturesAsync(IList<IAnnotation> inkSignatures)

Parameters

Type	Name	Description
IList<IAnnotation>	inkSignatures

Returns

Type	Description
IAsyncAction

SetInteractionModeAsync(InteractionMode)

Sets the current InteractionMode and gives focus to the . Use this method to set a specific interaction mode.

Declaration

public IAsyncAction SetInteractionModeAsync(InteractionMode interactionMode)

Parameters

Type	Name	Description
InteractionMode	interactionMode	InteractionMode

Returns

Type	Description
IAsyncAction

SetKeepFirstSpreadAsSinglePageAsync(Boolean)

When this is enabled, the first spread will always show a single page, even when PSPDFKit.LayoutMode.Double is enabled. This is useful for magazines that want to show a cover page before the regular content starts.

Declaration

public IAsyncAction SetKeepFirstSpreadAsSinglePageAsync(bool keepFirstSpreadAsSinglePage)

Parameters

Type	Name	Description
System.Boolean	keepFirstSpreadAsSinglePage

Returns

Type	Description
IAsyncAction

SetLayoutModeAsync(LayoutMode)

Changes how the pages are be laid out in the document view.

Declaration

public IAsyncAction SetLayoutModeAsync(LayoutMode layoutMode)

Parameters

Type	Name	Description
LayoutMode	layoutMode	LayoutMode

Returns

Type	Description
IAsyncAction

SetPrintingAllowedAsync(Boolean)

Control whether or not the printing button in the toolbar should be disabled.

Declaration

public IAsyncAction SetPrintingAllowedAsync(bool allowPrinting)

Parameters

Type	Name	Description
System.Boolean	allowPrinting

Returns

Type	Description
IAsyncAction

SetReadOnlyAsync(Boolean)

When the read only mode is activated, the Controller for creating, updating and deleting annotations will be completely hidden. In addition, the user will also no longer be able to select annotations.

Declaration

public IAsyncAction SetReadOnlyAsync(bool readOnly)

Parameters

Type	Name	Description
System.Boolean	readOnly

Returns

Type	Description
IAsyncAction

SetScrollModeAsync(ScrollMode)

Changes the mode of page scrolling in the document view - either continuous or per spread (paginated).

Declaration

public IAsyncAction SetScrollModeAsync(ScrollMode scrollMode)

Parameters

Type	Name	Description
ScrollMode	scrollMode	ScrollMode

Returns

Type	Description
IAsyncAction

SetSelectedAnnotationAsync(IAnnotation)

Selects an annotation in the user interface. If the annotation is null, the current selection will be cleared instead.

Declaration

public IAsyncAction SetSelectedAnnotationAsync(IAnnotation annotation)

Parameters

Type	Name	Description
IAnnotation	annotation	The annotation you want to set as selected. If null the current selection will be cleared instead.

Returns

Type	Description
IAsyncAction

SetShowAnnotationsAsync(Boolean)

When this is set to false, annotations will no longer be rendered. This option can alo be set to false, when ReadOnly mode is enabled.

Declaration

public IAsyncAction SetShowAnnotationsAsync(bool showAnnotations)

Parameters

Type	Name	Description
System.Boolean	showAnnotations

Returns

Type	Description
IAsyncAction

See Also

IsReadOnlyAsync()

SetShowToolbarAsync(Boolean)

Set this to true if you want a toolbar for navigation and annotation controls or false if you don't.

Declaration

public IAsyncAction SetShowToolbarAsync(bool showToolbar)

Parameters

Type	Name	Description
System.Boolean	showToolbar

Returns

Type	Description
IAsyncAction

SetSidebarModeAsync(SidebarMode)

Sets the current SidebarMode. Use this method to set a specific sidebar mode.

Declaration

public IAsyncAction SetSidebarModeAsync(SidebarMode sidebarMode)

Parameters

Type	Name	Description
SidebarMode	sidebarMode	SidebarMode

Returns

Type	Description
IAsyncAction

SetSidebarPlacementAsync(SidebarPlacement)

Sets the current SidebarPlacement.

Declaration

public IAsyncAction SetSidebarPlacementAsync(SidebarPlacement sidebarPlacement)

Parameters

Type	Name	Description
SidebarPlacement	sidebarPlacement	SidebarPlacement

Returns

Type	Description
IAsyncAction

SetToolbarItemsAsync(IList<IToolbarItem>)

Sets the IToolbarItems to be show. This will overwrite any items currently held by the toolbar. If the view is not initialized, the item will be cached and set when the view is ready.

Declaration

public IAsyncAction SetToolbarItemsAsync(IList<IToolbarItem> toolbarItems)

Parameters

Type	Name	Description
IList<IToolbarItem>	toolbarItems

Returns

Type	Description
IAsyncAction

SetViewStateAsync(ViewState)

Sets the ViewState.

Declaration

public IAsyncAction SetViewStateAsync(ViewState viewState)

Parameters

Type	Name	Description
ViewState	viewState

Returns

Type	Description
IAsyncAction

SetZoomFactorAndScrollAsync(Single, Single, Single)

Changes the current ZoomMode to ZoomFactor and sets the current zoom factor. Also moves the scroll bars if appropriate.

Declaration

public IAsyncAction SetZoomFactorAndScrollAsync(float zoomFactor, float scrollLeft, float scrollTop)

Parameters

Type	Name	Description
System.Single	zoomFactor	A zoom multiplier.
System.Single	scrollLeft	The fractional position of the horizontal scrollbar.
System.Single	scrollTop	The fractional position of the vertical scrollbar.

Returns

Type	Description
IAsyncAction

SetZoomModeAsync(ZoomMode)

Sets the current zoom factor. Use this method to set a specific zoom mode.

Declaration

public IAsyncAction SetZoomModeAsync(ZoomMode zoomMode)

Parameters

Type	Name	Description
ZoomMode	zoomMode	ZoomMode

Returns

Type	Description
IAsyncAction

ShowDocumentAsync(DocumentSource)

Display the document in the UI. Note that this always resets CurrentPageIndex to 0.

Declaration

public IAsyncOperation<Document> ShowDocumentAsync(DocumentSource source)

Parameters

Type	Name	Description
DocumentSource	source	The DocumentSource representing the PDF.

Returns

Type	Description
IAsyncOperation<Document>	A Document representing the opened PDF.

ShowDocumentWithViewStateAsync(DocumentSource, ViewState)

Display the document in the UI with all view options such as if annotations are show or not, and so on, reset to their default setting. Note that this always ignores CurrentPageIndex and sets it to 0.

Declaration

public IAsyncOperation<Document> ShowDocumentWithViewStateAsync(DocumentSource source, ViewState viewState)

Parameters

Type	Name	Description
DocumentSource	source	The DocumentSource representing the PDF.
ViewState	viewState	The ViewState to use when opening the PDF.

Returns

Type	Description
IAsyncOperation<Document>	A Document representing the opened PDF.

Events

IsEditableAnnotation

Occurs whenever the UI needs to determine if an annotation should be editable or not.

Declaration

public event TypedEventHandler<Controller, AnnotationPermissionQuery> IsEditableAnnotation

Event Type

Type	Description
TypedEventHandler<Controller, AnnotationPermissionQuery>

OnAnnotationPresetUpdate

Invoked when an annotation preset is updated if DisableAnnotationPresetUpdatingAsync(Boolean) is not set to False.

Declaration

public event TypedEventHandler<Controller, AnnotationPresetUpdate> OnAnnotationPresetUpdate

Event Type

Type	Description
TypedEventHandler<Controller, AnnotationPresetUpdate>

OnAnnotationSelectionChanged

Invoked when an annotation is being selected or unselected.

Declaration

public event TypedEventHandler<Controller, IAnnotation> OnAnnotationSelectionChanged

Event Type

Type	Description
TypedEventHandler<Controller, IAnnotation>

OnCurrentPageChanged

Invoked when the currently displayed page changes. The page index of the page that's currently visible. If there is more than one page visible it is the page that is using the most space in the viewport.

Declaration

public event TypedEventHandler<Controller, int> OnCurrentPageChanged

Event Type

Type	Description
TypedEventHandler<Controller, System.Int32>

OnPrint

Invoked when the print button is clicked on the toolbar in the UI.

Declaration

public event TypedEventHandler<Controller, Document> OnPrint

Event Type

Type	Description
TypedEventHandler<Controller, Document>

OnRequestPassword

Invoked when a password is required to open a PDF.

Declaration

public event TypedEventHandler<Controller, PasswordEventArgs> OnRequestPassword

Event Type

Type	Description
TypedEventHandler<Controller, PasswordEventArgs>