W.I.P of collaborative odf editor:

- Add wodocollabtexteditor library

api/js/webodf/collab/FullWindowZoomHelper.js

@@ -0,0 +1,83 @@
+/**
+ * Copyright (C) 2014 KO GmbH <copyright@kogmbh.com>
+ *
+ * @licstart
+ * This file is part of WebODF.
+ *
+ * WebODF is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU Affero General Public License (GNU AGPL)
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * WebODF is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with WebODF.  If not, see <http://www.gnu.org/licenses/>.
+ * @licend
+ *
+ * @source: http://www.webodf.org/
+ * @source: https://github.com/kogmbh/WebODF/
+ */
+
+/*global define, document, window */
+
+define("webodf/editor/FullWindowZoomHelper", [], function () {
+    "use strict";
+
+    // fullscreen pinch-zoom adaption
+    var FullWindowZoomHelper = function FullWindowZoomHelper(toolbarContainerElement, canvasContainerElement) {
+
+        function translateToolbar() {
+            var y = document.body.scrollTop;
+
+            toolbarContainerElement.style.WebkitTransformOrigin = "center top";
+            toolbarContainerElement.style.WebkitTransform = 'translateY(' + y + 'px)';
+        }
+
+        function repositionContainer() {
+            canvasContainerElement.style.top = toolbarContainerElement.getBoundingClientRect().height + 'px';
+        }
+
+        this.destroy = function (callback) {
+            window.removeEventListener('scroll', translateToolbar);
+            window.removeEventListener('focusout', translateToolbar);
+            window.removeEventListener('touchmove', translateToolbar);
+            window.removeEventListener('resize', repositionContainer);
+
+            callback();
+        };
+
+        function init() {
+            var metaElement, toolbarStyle;
+
+            // prevent any zooming on the window TODO: do not overwrite any other existing content of viewport metadata
+            metaElement = document.createElement("meta");
+            metaElement.setAttribute("name", "viewport");
+            metaElement.setAttribute("content", "width=device-width, initial-scale=1.0, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0");
+            document.head.appendChild(metaElement);
+
+            // set the toolbar absolute and fixed to top
+            toolbarStyle = toolbarContainerElement.style;
+            toolbarStyle.top = 0;
+            toolbarStyle.left = 0;
+            toolbarStyle.right = 0;
+            toolbarStyle.position = "absolute";
+            toolbarStyle.zIndex = 5;
+            toolbarStyle.boxShadow = "0 1px 5px rgba(0, 0, 0, 0.25)";
+
+            repositionContainer();
+
+            window.addEventListener('scroll', translateToolbar);
+            window.addEventListener('focusout', translateToolbar);
+            window.addEventListener('touchmove', translateToolbar);
+            window.addEventListener('resize', repositionContainer);
+        }
+
+        init();
+    };
+
+    return FullWindowZoomHelper;
+});