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current transaction is aborted, commands ignored until end of transaction block

Analysis

Overview

• Links allow the user to add interaction between different pages, page elements or frame contents.
• When a specific event happens with a source then the corresponding action is taken.
• The appearance of elements with defined links may be different in different states of the link.
• LINKS_COMMON_R0 has more on this issue.
• Links have effect only when opened in Sophie reader or when in preview mode.
• Changes done by links are not to be persisted.

Task requirements

• Define a model for links - how will triggers and actions be represented.
• Define how links are to be made part of the book and persisted.
• Define how different styles will be represented.
• Define a GUI for manipulation of links.
• Define some basic link triggers and actions.(look at subtasks for details)
• Links cannot be "executed" while in author mode.
• Text links(when triggering events are performed on text content) are not mandatory for now.
• Some additional tasks should be done - the preview mode of the book and the interactivity of scenes.
• Changes done in preview mode are not persisted.

Task result

The result of this task should be source code.

Implementation idea

• Define the Link as a list of LinkRules
• The later are pairs of (Trigger, Action)
• Actions are a class hierarchy
• Define an OperationR3 that will handle all the links in the application instance

Related

LINKS_MANIPULATION_R0
LINKS_ACTIONS_COMMON_R0
LINKS_ACTIONS_NAVIGATING_R0?
LINKS_ACTIONS_SHOWING_R0
LINKS_ACTIONS_PLAYING_R0
LINKS_ACTIONS_MULTI_PARAMETERS_R0?
LINKS_ACTIONS_ANNOBEAMS_R0?

How to demo

• Run Sophie2
• Make a book with two frames
• Add a link to the first frame that on some action toggles the visibility of the second frame
• Switch in preview mode
• Perform the triggering action several times to demonstrate the showing and hiding of the second frame.

Design

• Add links package in the org.sophie2.base.model.book module. It should contain the following
  • LinkState enumeration with elements NORMAL, OVER, PRESSED, VISITED
  • LinkTriger empty marker interface
  • LinkAction empty interface
  • LinkRule final class. It has a parent property of type Link and a LinkTrigger and @Own LinkAction property
  • Link abstract class implementing the Derivable interface. It should have a LinkState value property and a @Own @Templated ProList of LinkRule elements.
  • PageLink extends Link. It should contain BorderStyle, BackgroundStyle and ShadowStyle for the four link states. These should be @Templated.
    • It should also contain a publc enumeration Triggers containing these elements PAGE_SHOWN and PAGE_HIDDEN
  • FrameLink extends Link. It should contain BorderStyle, BackgroundStyle and ShadowStyle for the four link states. These should be @Templated.
    • It should also contain a publc enumeration Triggers containing these elements
      • FRAME_SHOWN
      • FRAME_HIDDEN
      • FRAME_MOUSE_ENTER
      • FRAME_MOUSE_LEAVE
      • FRAME_MOUSE_DOUBLE_CLICK
      • FRAME_MOUSE_PRESSED
      • FRAME_MOUSE_RELEASED
• Add an extension point for LinkActions
• Add a link property to the Page class. Review teplate support of styles.
• Add a link property to the Frame class. Review teplate support of styles.
• Note: Style manipulation is not so important so it should be done after everything else.
• Add a visible property of type Boolean to the Frame class
• Modify the WorkAreas so that they use this property correctly.
• Add a public enumeration PageStateChangeEvent in the BookDocumentWindow class.
  • Add element PAGE_SHOWN with @EventParams({Page.class})
  • Add element PAGE_HIDDEN with @EventParams({Page.class})
• Add a public enumeration FrameStateChangeEvent in the SceneFrameView class.
  • Add element FRAME_SHOWN with @EventParams({Frame.class})
  • Add element FRAME_HIDDEN with @EventParams({Frame.class})
  • Add a resource property that will fire the corresponding events
• Modify the pageSync method to fire these events
• Add LinksProcessor enumeration in the areas package of org.sophie2.main.view module
  • It should implement OperationDef interface
  • Add element FRAME_INPUT_EVENT it should listen for InputEventR3 which happen with frames
  • Add element FRAME_STATE_CHANGE it should listen for FrameStateChangeEvent events
  • Add element PAGE_STATE_CHANGE it should listen for PageStateChangeEvent events
  • All these should check if the corresponding Page/Frame has defined link and if so whether there are rules with the triggers corresponding to the handled event.
  • If there are such LinkRules a LINK_ACTION_TRIGGERED event is fired with the corresponding action as an argument.
• Create a org.sophie2.main.func.links module
  • Create a LinkConfigurationPanel interface which extends VisualElement. It should have a getActionClass method that gets the the class of the LinkAction that this pabnel knows how to configure.
  • It should contain a hud dialog and a halo button that shows it.
  • The hud consists of 5 parts
    • Drop down combo with the LinkRulse of the configured element(Page/Frame)
    • Drop down combo for the available triggers for the element
    • Drop down combo with available actions
    • Configuration panel.
    • "Add rule" and "Remove rule" buttons
  • When an action is selected the hud should look for an appropriate LinkConfigurationPanel and display it as a part of the Configuration panel.
  • Create some of the important actions for navigation and frames visibility changing

Implementation

^{(Describe and link the implementation results here (from the wiki or the repository).)}

Testing

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Comments

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