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author | Christian Franke <nobody@nowhere.ws> | 2013-04-09 14:31:22 +0200 |
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committer | Christian Franke <nobody@nowhere.ws> | 2013-04-09 14:31:22 +0200 |
commit | 5a774ef6f3b38b19b26913a34b1388530c72334e (patch) | |
tree | 543127427771d75f652fc9e726cc39aa1a72571c /deck.js/extensions/events |
Initial Commit
Diffstat (limited to 'deck.js/extensions/events')
-rw-r--r-- | deck.js/extensions/events/README.md | 64 | ||||
-rw-r--r-- | deck.js/extensions/events/deck.events.js | 23 |
2 files changed, 87 insertions, 0 deletions
diff --git a/deck.js/extensions/events/README.md b/deck.js/extensions/events/README.md new file mode 100644 index 0000000..22d003e --- /dev/null +++ b/deck.js/extensions/events/README.md @@ -0,0 +1,64 @@ +# deck.events.js + +An extension for [deck.js][] allowing you to execute Javascript when a + slide becomes/leaves the current, next, or previous slide. + +## Requirements + +[deck.js][] + +## Events + +Each event is triggered "on" the slide on which the event occurs (see _Example_) + and given a single argument -- the direction (see _Direction_) + +* **deck.becameCurrent**: Triggered when a slide becomes the current one + (`to` in `deck.change`). +* **deck.lostCurrent**: The slide is no longer "current" + (`from` in `deck.change`). +* **deck.becamePrevious**: The slide (by order) just before the current slide. + (`to - 1` in `deck.change`). +* **deck.becameNext**: The slide (by order) just after the current slide. + (`to + 1` in `deck.change`). +* **deck.lostPrevious**: The slide (by order) just before the last current slide. + (`from - 1` in `deck.change`). +* **deck.lostNext**: The slide (by order) just after the last current slide. + (`from + 1` in `deck.change`). + + +## Direction + +Each event is given a direction that helps determine whether the user is + moving forward or backward in the slide stack. It is provided as an argument + for the event and can be either `forward` or `reverse`. Essentially: + +``` + if(from < to){ + direction = "forward"; + } + else{ + direction = "reverse"; + } +``` + + +## Example + +If you put a placeholder slide `<div id="showGraph" class="slide"></div>` into + your source, this event will display a Javascript graph when you visit the + slide (forward) and remove it if you hit the back arrow and return to + the slide. + +``` +$("#showGraph").bind('deck.becameCurrent', function(ev, direction) { + if(direction == "forward"){ + animateGraphIn(); + } + else{ + animateGraphOut(); + } +}); +``` + + +[deck.js]: https://github.com/imakewebthings/deck.js diff --git a/deck.js/extensions/events/deck.events.js b/deck.js/extensions/events/deck.events.js new file mode 100644 index 0000000..e00d28d --- /dev/null +++ b/deck.js/extensions/events/deck.events.js @@ -0,0 +1,23 @@ +(function($, deck, undefined) { + $(document).bind('deck.change', function(e, from, to) { + var $prev = $[deck]('getSlide', to-1), + $next = $[deck]('getSlide', to+1), + $oldprev = $[deck]('getSlide', from-1), + $oldnext = $[deck]('getSlide', from+1); + + var direction = "forward"; + if(from > to){ + direction = "reverse"; + } + + $[deck]('getSlide', to).trigger('deck.becameCurrent', [direction, from, to]); + $[deck]('getSlide', from).trigger('deck.lostCurrent', [direction, from, to]); + + $prev && $prev.trigger('deck.becamePrevious', [direction, from, to]); + $next && $next.trigger('deck.becameNext', [direction, from, to]); + + $oldprev && $oldprev.trigger('deck.lostPrevious', [direction, from, to]); + $oldnext && $oldnext.trigger('deck.lostNext', [direction, from, to]); + }); +})(jQuery, 'deck'); + |