From 7307889639b68064e642ae65bf98d9856c10922b Mon Sep 17 00:00:00 2001
From: Victor Häggqvist <victor@snilius.com>
Date: Sat, 16 Jan 2016 14:14:59 +0100
Subject: finalize convertion of existing plugins

---
 src/Plugins/Navigation.js | 63 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 src/Plugins/Navigation.js

(limited to 'src/Plugins/Navigation.js')

diff --git a/src/Plugins/Navigation.js b/src/Plugins/Navigation.js
new file mode 100644
index 0000000..bdd5e92
--- /dev/null
+++ b/src/Plugins/Navigation.js
@@ -0,0 +1,63 @@
+/**
+ * @author Victor Häggqvist
+ * @since 1/15/16
+ */
+
+export default class Navigation {
+
+    register(lightbox) {
+        this.lightbox = lightbox;
+        lightbox.addOnStartListener(this.showNavigation.bind(this));
+        lightbox.addOnEndListener(this.hideNavigation.bind(this));
+        lightbox.addOnLoadEndListener(this.updateNavigation.bind(this));
+    }
+
+
+    showNavigation() {
+        this.sink = document.createElement('div');
+        this.sink.id = 'imagelightbox-nav-sink';
+        this.nav = document.createElement('div');
+        this.nav.id = 'imagelightbox-nav';
+        this.sink.appendChild(this.nav);
+
+        Array.prototype.forEach.call(this.lightbox.targets, _ => {
+            this.nav.appendChild(document.createElement('a'));
+        });
+
+        document.body.appendChild(this.sink);
+
+        let navItems = this.nav.querySelectorAll('a');
+        Array.prototype.forEach.call(navItems, (item, i) => {
+            ['click', 'touchend'].forEach(name => {
+                item.addEventListener(name, this.navClick.bind(this, i));
+            })
+        });
+
+        // make the nav actually centered, flex center dont make it
+        let rect = this.nav.getBoundingClientRect();
+        let diff = rect.width/2;
+        this.nav.style.marginLeft = '-'+diff+'px';
+    }
+
+    updateNavigation() {
+        Array.prototype.forEach.call(this.nav.childNodes, n => {
+           n.classList.remove('active');
+        });
+
+        let current = Array.prototype.indexOf.call(this.lightbox.targets, this.lightbox.target);
+        this.nav.childNodes[current].classList.add('active');
+    }
+
+    hideNavigation() {
+        try {
+            document.body.removeChild(this.sink);
+        } catch (e) {}
+    };
+
+    navClick(index, e) {
+        e.stopPropagation();
+        e.cancelBubble = true;
+        this.lightbox.switchToIndex(index);
+    }
+
+}
-- 
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