1 files changed, 54 insertions, 0 deletions

diff --git a/pointless/viewer/stage.js b/pointless/viewer/stage.js
new file mode 100644
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+++ b/pointless/viewer/stage.js
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+/*
+ * stage.js
+ * Part of Pointless Viewer, a Beamer presentation viewer
+ * Copyright 2018 Pacien TRAN-GIRARD
+ * License: GNU GPL v3
+ */
+
+"use strict";
+
+class Stage {
+  constructor(onReady, onNext, onPrevious) {
+    this.onNext = onNext;
+    this.onPrevious = onPrevious;
+    this.projector = window.open(window.location.href);
+    this.audienceScreen = null;
+    this.presenterScreen = null;
+
+    var self = this;
+    this.projector.addEventListener("load", function() {
+      self.audienceScreen = new Screen(self.projector, false);
+      self.presenterScreen = new Screen(window, true);
+      onReady();
+    });
+
+    this._registerEventHandler(window);
+    this._registerEventHandler(this.projector);
+  }
+
+  setPage(page) {
+    this.audienceScreen.setPage(page);
+    this.presenterScreen.setPage(page);
+  }
+
+  _registerEventHandler(window) {
+    var self = this;
+    window.addEventListener("keypress", function(event) {
+      self._onCommand(event);
+    })
+  }
+
+  _onCommand(keyboardEvent) {
+    switch (keyboardEvent.key) {
+      case "Enter":
+      case " ":
+      case "ArrowRight":
+      case "n":
+        return this.onNext();
+
+      case "ArrowLeft":
+      case "p":
+        return this.onPrevious();
+    }
+  }
+}