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[[TicketQuery(summary=GROUP_LINKS_R0, format=table, col=summary|owner|status|type|component|priority|effort|importance, rows=description|analysis_owners|analysis_reviewers|analysis_score|design_owners|design_reviewers|design_score|implementation_owners|implementation_reviewers|implementation_score|test_owners|test_reviewers|test_score|)]]

= Analysis =
^(Give as much as possible of the needed information for designing and implementing the task in the following sections.)^

== 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.
 * [wiki:LINKS_COMMONS_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)
 * 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.

== 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 ==
[[wiki:LINKS_MANIPULATION_R0]][[BR]]
[[wiki:LINKS_ACTIONS_COMMON_R0]][[BR]]
[[wiki:LINKS_ACTIONS_NAVIGATING_R0]][[BR]]
[[wiki:LINKS_ACTIONS_SHOWING_R0]][[BR]]
[[wiki:LINKS_ACTIONS_PLAYING_R0]][[BR]]
[[wiki:LINKS_ACTIONS_MULTI_PARAMETERS_R0]][[BR]]
[[wiki:LINKS_ACTIONS_ANNOBEAMS_R0]][[BR]]

== 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 =
^(Describe your design here.)^

= Implementation =
^(Describe and link the implementation results here (from the wiki or the repository).)^

= Testing =
^(Place the testing results here.)^

= Comments =
^(Write comments for this or later revisions here.)