1 files changed, 119 insertions, 0 deletions
diff --git a/deck.js/extensions/step/deck.step.js b/deck.js/extensions/step/deck.step.js
new file mode 100644
index 0000000..1b1ac70
--- /dev/null
+++ b/deck.js/extensions/step/deck.step.js
@@ -0,0 +1,119 @@
+/*!
+Deck JS - deck.step
+Copyright (c) 2011 Rémi Emonet
+Dual licensed under the MIT license and GPL license.
+https://github.com/imakewebthings/deck.js/blob/master/MIT-license.txt
+https://github.com/imakewebthings/deck.js/blob/master/GPL-license.txt
+*/
+
+/*
+This module provides new methods for stepping without considering sub-slides, together with tools for finding toplevel slides etc.
+It also overrides the defaults keybinding and countNested value (so it is better to include it after "goto" and "status" extensions).
+*/
+
+(function($, deck, undefined) {
+    var $d = $(document);
+    // undo the defaults (to be sure jquery behaves properly when overriding it)
+    $.extend(true, $[deck].defaults, { keys: {next:null, previous:null}});
+    // and go on
+    $.extend(true, $[deck].defaults, {
+        selectors: {
+            subslidesToNotify: ".slide,.onshowtoplevel"
+        },
+        // Here we redefined the defaults:
+        //  - we avoid counting nested slides
+        //  - we keep up/down for top-level slides
+        //  - we still use pgup/pgdown for inner slides as they are sent by some pluggable remote controls
+        keys: {
+            // backspace, left arrow, page down
+            previous: [8, 37, 34],
+            // enter, space, right arrow, page up
+            next: [13, 32, 39, 33],
+            // up arrow
+            previousTopLevel: [38],
+            // down arrow,
+            nextTopLevel: [40]
+        },
+        countNested: false
+    });
+    var myInArray = function(el, arr) {
+        for (i in arr) if (arr[i].is(el)) return i*1; // cast to int
+        return -1;
+    };
+    $[deck]('extend', 'getToplevelSlideOf', function(node) {
+        var opts = $[deck]('getOptions');
+        var slides = $[deck]('getSlides');
+        var last = {node: $(node), index: myInArray(node, slides)};
+        $(node).parentsUntil(opts.selectors.container).each( function(ii, v) {
+            var ind = myInArray(v, slides);
+            if (ind != -1) {
+                last = {node: $(v), index: ind};
+            }
+        });
+        return last;
+    });
+    $[deck]('extend', 'getToplevelSlideOfIndex', function(ind) {
+        return $[deck]('getToplevelSlideOf', $[deck]('getSlide', ind));
+    });
+    $[deck]('extend', 'previousTopLevelSlide', function() {
+        /* Find the real previous parent */
+        var current = $[deck]('getSlide');
+        var currentParent = $[deck]('getToplevelSlideOf', current);
+        var toGo = currentParent.index;
+        if (current.is(currentParent.node) && toGo > 0) {
+            // This is already toplevel slide, just go to the previous toplevel one (parent of the previous one)
+            toGo = $[deck]('getToplevelSlideOfIndex', toGo-1).index;
+        }
+        $[deck]('go', toGo);
+        
+    });
+    $[deck]('extend', 'nextTopLevelSlide', function() {
+        /* Find the real next parent */
+        var current = $[deck]('getSlide');
+        var currentParent = $[deck]('getToplevelSlideOf', current);
+        var icur = currentParent.index;
+        for (; icur < $[deck]('getSlides').length; icur++) {
+            var cursorParent = $[deck]('getToplevelSlideOfIndex', icur).node;
+            if (!cursorParent.is(currentParent.node)) {
+                $[deck]('go', icur);
+                break;
+            }
+        }
+    });
+    $d.bind('deck.init', function() {
+        $d.unbind('keydown.decknexttoplevel').bind('keydown.decknexttoplevel', function(e) {
+            var $opts = $[deck]('getOptions');
+            var key = $opts.keys.nextTopLevel;
+            if (e.which === key || $.inArray(e.which, key) > -1) {
+                e.preventDefault();
+                $[deck]('nextTopLevelSlide');
+            }
+        });
+        $d.unbind('keydown.deckprevioustoplevel').bind('keydown.deckprevioustoplevel', function(e) {
+            var $opts = $[deck]('getOptions');
+            var key = $opts.keys.previousTopLevel;
+            if (e.which === key || $.inArray(e.which, key) > -1) {
+                e.preventDefault();
+                $[deck]('previousTopLevelSlide');
+            }
+        });
+    });
+    // When jumping (not steping), we will init the subslides (in case they are animations), in a backward order, and then fast forward necessary animations
+    var bigJump = function(from, to) {
+        var direction = "forward";
+        if (from > to){
+            direction = "reverse";
+        }
+        var opts = $[deck]('getOptions');
+        $($[deck]('getToplevelSlideOfIndex', to).node.find(opts.selectors.subslidesToNotify).get().reverse()).trigger('deck.toplevelBecameCurrent', direction);
+        for (icur = $[deck]('getToplevelSlideOfIndex', to).index + 1; icur < to+1; icur++) {
+            $[deck]('getSlides')[icur].trigger('deck.afterToplevelBecameCurrent', 'forward');
+        }
+    }
+    $d.bind('deck.change', function(e, from, to) {
+        if (  Math.abs(from - to) > 1 || ! $[deck]('getToplevelSlideOfIndex', to).node.is($[deck]('getToplevelSlideOfIndex', from).node)) {
+            // consider natural jumps and the case where we actually changed (top level) slide (even with a step)
+            bigJump(from, to);
+        }
+    });
+})(jQuery, 'deck');