cherypick changes from previous attempts to add ipad support

demo/kitchen-sink/demo.js

@@ -613,6 +613,7 @@ env.editor.setOptions({
     enableBasicAutocompletion: true,
     enableSnippets: true
 })
+require("ace/ext/mobile");
 
 });
 

lib/ace/ext/mobile.js

@@ -0,0 +1,50 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Distributed under the BSD license:
+ *
+ * Copyright (c) 2012, Ajax.org B.V.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Ajax.org B.V. nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+define(function(require, exports, module) {
+"use strict";
+
+var TouchHandler = require("../mouse/touch_handler").TouchHandler;
+var config = require("../config");
+
+var Editor = require("../editor").Editor;
+require("../config").defineOptions(Editor.prototype, "editor", {
+    enableTouchSupport: {
+        set: function(val) {
+			if ('ontouchstart' in this.container || 1)
+            if (val && !this.$touchHandler)
+				this.$touchHandler = new TouchHandler(this);
+        },
+        value: true,
+		initialValue: false
+    }
+});
+
+});

lib/ace/mouse/touch_handler.js

@@ -0,0 +1,126 @@
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is Ajax.org Code Editor (ACE).
+ *
+ * The Initial Developer of the Original Code is
+ * Ajax.org B.V.
+ * Portions created by the Initial Developer are Copyright (C) 2010
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *      Fabian Jakobs <fabian AT ajax DOT org>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+define(function(require, exports, module) {
+
+var event = require("../lib/event");
+
+var TouchHandler = function(editor) {
+    this.editor = editor;
+    event.addListener(editor.container, "click", function(e) {
+        // does this only work on click?
+        editor.focus();
+    });
+    var mouseTarget = editor.renderer.getMouseEventTarget();
+    mouseTarget.ontouchstart = this.onTouchStart.bind(this);
+    mouseTarget.ontouchmove = this.onTouchMove.bind(this);
+    mouseTarget.ontouchend = this.onTouchEnd.bind(this);
+};
+
+(function() {
+
+    this.$scrollSpeed = 1;
+    this.setScrollSpeed = function(speed) {
+        this.$scrollSpeed = speed;
+    };
+    
+    this.getScrollSpeed = function() {
+        return this.$scrollSpeed;
+    };
+    
+    this.onTouchMove = function(e) {
+        e.preventDefault();
+        if (e.touches.length == 1) {
+            this.$moveCursor(e.touches[0]);
+        }
+        else if (e.touches.length == 2) {
+            if (!this.$scroll)
+                return;
+            
+            var touch = e.touches[0];
+            var diffX = this.$scroll.pageX - touch.pageX;
+            var diffY = this.$scroll.pageY - touch.pageY;
+            this.editor.renderer.scrollBy(diffX, diffY);
+
+            this.$scroll = {
+                pageX: touch.pageX,
+                pageY: touch.pageY,
+                ts: new Date().getTime() 
+            }
+        }
+    };
+    
+    this.$moveCursor = function(touch) {
+        var pageX = touch.pageX;
+        var pageY = touch.pageY;
+        
+        var editor = this.editor;
+        var pos = editor.renderer.screenToTextCoordinates(pageX, pageY);
+        pos.row = Math.max(0, Math.min(pos.row, editor.session.getLength()-1));
+        
+        editor.moveCursorToPosition(pos);
+        editor.renderer.scrollCursorIntoView();
+    };
+    
+    this.onTouchEnd = function(e) {        
+        //if (e.touches.length == 1) {
+            console.log("focus")
+          //  editor.focus();
+            //e.preventDefault();
+        //}
+		
+
+    };
+    
+    this.onTouchStart = function(e) {
+        if (e.touches.length == 1) {
+            this.$moveCursor(e.touches[0]);
+        }
+        else if (e.touches.length == 2) {
+            e.preventDefault();
+            var touch = e.touches[0];
+            this.$scroll = {
+                pageX: touch.pageX,
+                pageY: touch.pageY
+            }
+        }
+    };
+
+}).call(TouchHandler.prototype);
+
+exports.TouchHandler = TouchHandler;
+});