Package org.eclipse.jface.text.templates

Class TemplateProposal

java.lang.Object
org.eclipse.jface.text.templates.TemplateProposal
All Implemented Interfaces:
ICompletionProposal, ICompletionProposalExtension, ICompletionProposalExtension2, ICompletionProposalExtension3
public class TemplateProposal extends Object implements ICompletionProposal, ICompletionProposalExtension, ICompletionProposalExtension2, ICompletionProposalExtension3
A template completion proposal.

Clients may subclass.

Since:
3.0

  • Constructor Details

    • TemplateProposal

      public TemplateProposal(Template template, TemplateContext context, IRegion region, Image image)
      Creates a template proposal with a template and its context.
      Parameters:
      template - the template
      context - the context in which the template was requested.
      region - the region this proposal is applied to
      image - the icon of the proposal.

    • TemplateProposal

      public TemplateProposal(Template template, TemplateContext context, IRegion region, Image image, int relevance)
      Creates a template proposal with a template and its context.
      Parameters:
      template - the template
      context - the context in which the template was requested.
      image - the icon of the proposal.
      region - the region this proposal is applied to
      relevance - the relevance of the proposal

  • Method Details

    • setInformationControlCreator

      public final void setInformationControlCreator(IInformationControlCreator informationControlCreator)
      Sets the information control creator for this completion proposal.
      Parameters:
      informationControlCreator - the information control creator
      Since:
      3.1

    • getTemplate

      protected final Template getTemplate()
      Returns the template of this proposal.
      Returns:
      the template of this proposal
      Since:
      3.1

    • getContext

      protected final TemplateContext getContext()
      Returns the context in which the template was requested.
      Returns:
      the context in which the template was requested
      Since:
      3.1

    • apply

      @Deprecated public final void apply(IDocument document)
      Deprecated.
      This method is no longer called by the framework and clients should overwrite apply(ITextViewer, char, int, int) instead
      Inserts the proposed completion into the given document.
      Specified by:
      apply in interface ICompletionProposal
      Parameters:
      document - the document into which to insert the proposed completion

    • apply

      public void apply(ITextViewer viewer, char trigger, int stateMask, int offset)
      Inserts the template offered by this proposal into the viewer's document and sets up a LinkedModeUI on the viewer to edit any of the template's unresolved variables.
      Specified by:
      apply in interface ICompletionProposalExtension2
      Parameters:
      viewer - the text viewer into which to insert the proposed completion
      trigger - the trigger to apply the completion
      stateMask - the state mask of the modifiers
      offset - the offset at which the trigger has been activated

    • getReplaceOffset

      protected final int getReplaceOffset()
      Returns the offset of the range in the document that will be replaced by applying this template.
      Returns:
      the offset of the range in the document that will be replaced by applying this template
      Since:
      3.1

    • getReplaceEndOffset

      protected final int getReplaceEndOffset()
      Returns the end offset of the range in the document that will be replaced by applying this template.
      Returns:
      the end offset of the range in the document that will be replaced by applying this template
      Since:
      3.1

    • getSelection

      public Point getSelection(IDocument document)
      Description copied from interface: ICompletionProposal
      Returns the new selection after the proposal has been applied to the given document in absolute document coordinates. If it returns null, no new selection is set. A document change can trigger other document changes, which have to be taken into account when calculating the new selection. Typically, this would be done by installing a document listener or by using a document position during ICompletionProposal.apply(IDocument).
      Specified by:
      getSelection in interface ICompletionProposal
      Parameters:
      document - the document into which the proposed completion has been inserted
      Returns:
      the new selection in absolute document coordinates

    • getAdditionalProposalInfo

      public String getAdditionalProposalInfo()
      Description copied from interface: ICompletionProposal
      Returns optional additional information about the proposal. The additional information will be presented to assist the user in deciding if the selected proposal is the desired choice.

      If ICompletionProposalExtension5 is implemented, this method should not be called any longer. This method may be deprecated in a future release.

      Specified by:
      getAdditionalProposalInfo in interface ICompletionProposal
      Returns:
      the additional information or null

    • getDisplayString

      public String getDisplayString()
      Description copied from interface: ICompletionProposal
      Returns the string to be displayed in the list of completion proposals.
      Specified by:
      getDisplayString in interface ICompletionProposal
      Returns:
      the string to be displayed
      See Also:

    • getImage

      public Image getImage()
      Description copied from interface: ICompletionProposal
      Returns the image to be displayed in the list of completion proposals. The image would typically be shown to the left of the display string.
      Specified by:
      getImage in interface ICompletionProposal
      Returns:
      the image to be shown or null if no image is desired

    • getContextInformation

      public IContextInformation getContextInformation()
      Description copied from interface: ICompletionProposal
      Returns optional context information associated with this proposal. The context information will automatically be shown if the proposal has been applied.
      Specified by:
      getContextInformation in interface ICompletionProposal
      Returns:
      the context information for this proposal or null

    • getRelevance

      public int getRelevance()
      Returns the relevance.
      Returns:
      the relevance

    • getInformationControlCreator

      public IInformationControlCreator getInformationControlCreator()
      Description copied from interface: ICompletionProposalExtension3
      Returns the information control creator of this completion proposal.
      Specified by:
      getInformationControlCreator in interface ICompletionProposalExtension3
      Returns:
      the information control creator, or null if no custom control creator is available

    • selected

      public void selected(ITextViewer viewer, boolean smartToggle)
      Description copied from interface: ICompletionProposalExtension2
      Called when the proposal is selected.
      Specified by:
      selected in interface ICompletionProposalExtension2
      Parameters:
      viewer - the text viewer.
      smartToggle - the smart toggle key was pressed

    • unselected

      public void unselected(ITextViewer viewer)
      Description copied from interface: ICompletionProposalExtension2
      Called when the proposal is unselected.
      Specified by:
      unselected in interface ICompletionProposalExtension2
      Parameters:
      viewer - the text viewer.

    • validate

      public boolean validate(IDocument document, int offset, DocumentEvent event)
      Description copied from interface: ICompletionProposalExtension2
      Requests the proposal to be validated with respect to the document event. If the proposal cannot be validated, the methods returns false. If the document event was null, only the caret offset was changed, but not the document. This method replaces ICompletionProposalExtension.isValidFor(IDocument, int)
      Specified by:
      validate in interface ICompletionProposalExtension2
      Parameters:
      document - the document
      offset - the caret offset
      event - the document event, may be null
      Returns:
      boolean

    • getPrefixCompletionText

      public CharSequence getPrefixCompletionText(IDocument document, int completionOffset)
      Description copied from interface: ICompletionProposalExtension3
      Returns the string that would be inserted at the position returned from ICompletionProposalExtension3.getPrefixCompletionStart(IDocument, int) if this proposal was applied. If the replacement string cannot be determined, null may be returned.
      Specified by:
      getPrefixCompletionText in interface ICompletionProposalExtension3
      Parameters:
      document - the document that the receiver applies to
      completionOffset - the offset into document where the completion takes place
      Returns:
      the replacement string or null if it cannot be determined

    • getPrefixCompletionStart

      public int getPrefixCompletionStart(IDocument document, int completionOffset)
      Description copied from interface: ICompletionProposalExtension3
      Returns the document offset at which the receiver would insert its proposal.
      Specified by:
      getPrefixCompletionStart in interface ICompletionProposalExtension3
      Parameters:
      document - the document that the receiver applies to
      completionOffset - the offset into document where the completion takes place
      Returns:
      the offset at which the proposal would insert its proposal

    • apply

      @Deprecated public void apply(IDocument document, char trigger, int offset)
      Deprecated.
      This method is no longer called by the framework and clients should overwrite apply(ITextViewer, char, int, int) instead
      Applies the proposed completion to the given document. The insertion has been triggered by entering the given character at the given offset. This method assumes that ICompletionProposalExtension.isValidFor(IDocument, int) returns true if called for offset.
      Specified by:
      apply in interface ICompletionProposalExtension
      Parameters:
      document - the document into which to insert the proposed completion
      trigger - the trigger to apply the completion
      offset - the offset at which the trigger has been activated

    • isValidFor

      public boolean isValidFor(IDocument document, int offset)
      Description copied from interface: ICompletionProposalExtension
      Returns whether this completion proposal is valid for the given position in the given document.
      Specified by:
      isValidFor in interface ICompletionProposalExtension
      Parameters:
      document - the document for which the proposal is tested
      offset - the offset for which the proposal is tested
      Returns:
      true iff valid

    • getTriggerCharacters

      public char[] getTriggerCharacters()
      Description copied from interface: ICompletionProposalExtension
      Returns the characters which trigger the application of this completion proposal.
      Specified by:
      getTriggerCharacters in interface ICompletionProposalExtension
      Returns:
      the completion characters for this completion proposal or null if no completion other than the new line character is possible

    • getContextInformationPosition

      public int getContextInformationPosition()
      Description copied from interface: ICompletionProposalExtension
      Returns the position to which the computed context information refers to or -1 if no context information can be provided by this completion proposal.
      Specified by:
      getContextInformationPosition in interface ICompletionProposalExtension
      Returns:
      the position to which the context information refers to or -1 for no information