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+<!DOCTYPE html>
+<!--
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+-->
+<div id="bodydiv" class="bodydiv" style="overflow: visible;">
+
+<table style="width: 100%;">
+<tr>
+<td><h2><span id="appNameHeader"></span></h2></td>
+<td style="vertical-align: middle; text-align: right; padding-right: 8px;"><span id="status" style="font-weight: bold; color: #808080;"></span></td>
+</tr>
+</table>
+
+<table id="widgetValueBackground" style="width: 2500px; position: absolute; top: 59px; left: 0px; z-index: -1;">
+<tr>
+<th class="thr thl"><span style="display: inline-block; padding-top: 0px; padding-bottom: 0px; height: 24px;"></span></th>
+</tr>
+</table>
+
+<table id="widgetValueTable" style="width: 100%;">
+<tr>
+<td class="thl thr" style="text-align: right; padding-right: 2px; vertical-align: top;">
+<span id="deleteWidgetButton" title="Delete a Widget" class="graybutton" style="font-weight: bold; font-size: 16px; color: #808080; display: inline-block; width: 24px; height: 20px; padding-top: 0px; padding-bottom: 0px; text-align: center; margin-left: 0px; margin-right: 0px;">-</span>
+
+<span id="copyWidgetButton" title="Copy a Widget" class="graybutton" style="font-weight: bold; font-size: 16px; color: #808080; display: inline-block; width: 24px; height: 20px; padding-top: 0px; padding-bottom: 0px; text-align: center; margin-left: 0px; margin-right: 0px;">c</span>
+
+<span id="addWidgetButton" title="Add a Widget" class="graybutton" style="font-weight: bold; font-size: 16px; display: inline-block; width: 24px; height: 20px; padding-top: 0px; padding-bottom: 0px; middle; text-align: center; margin-left: 0px; margin-right: 0px;">+</span>
+
+<span id="playPageButton" title="View page" class="graybutton" style="font-weight: bold; font-size: 16px; display: inline-block; width: 24px; height: 20px; padding-top: 0px; padding-bottom: 0px; middle; text-align: center; margin-left: 0px; margin-right: 0px;">&gt;</span>
+</td>
+
+<td class="thl thr" style="padding-left: 2px; padding-right: 2px; vertical-align: top; width: 100%;">
+<input id="widgetValue" type="text" value="" title="Widget value" autocapitalize="off" placeholder="Value" style="position: relative; visibility: hidden; width: 100%;"/>
+</td>
+</tr>
+</table>
+
+<div id="contentdiv" style="margin-top: 4px; width: 2500px;">
+<div id="editdiv" style="visibility: visible; position: relative; top: 0px; left: -2500px; width: 2500px; height: 5000px;">
+
+<div style="position: relative; left: 2500px; top: 0px; right: 0px; height: 5000px; border:1px; border-style: solid; border-color: #a2bae7;"><span id="editgrid"></span></div>
+<div class="guide" style="position: absolute; left: 2500px; top: 0px; width: 320px; height: 460px;"></div>
+<div class="guide" style="position: absolute; left: 2500px; top: 0px; width: 480px; height: 300px;"></div>
+<div class="guide" style="position: absolute; left: 2500px; top: 0px; width: 768px; height: 911px;"></div>
+<div class="guide" style="position: absolute; left: 2500px; top: 0px; width: 1024px; height: 655px;"></div>
+
+<span class="h1" id="palette:h1" style="position: absolute; left: 0px; top: 0px;"><h1>Header1</h1></span>
+<span class="h2" id="palette:h2" style="position: absolute; left: 0px; top: 30px;"><h2>Header2</h2></span>
+<span class="section" id="palette:section" style="position: absolute; left: 0px; top: 60px; width: 200px;"><span class="section">section</span></span>
+<span class="button" id="palette:button" style="position: absolute; left: 0px; top: 90px;"><input type="button" value="button" class="graybutton"/></span>
+<span class="entry" id="palette:entry" style="position: absolute; left: 0px; top: 120px;"><input type="text" value="field" size="20" autocapitalize="off"/></span>
+<span class="password" id="palette:password" style="position: absolute; left: 0px; top: 150px;"><input type="password" value="password" size="20"/></span>
+<span class="checkbox" id="palette:checkbox" style="position: absolute; left: 0px; top: 180px;"><input type="checkbox" value="checkbox"/><span>checkbox</span></span>
+<span class="select" id="palette:select" style="position: absolute; left: 0px; top: 210px;"><select><option value="select">select</option></select></span>
+<span class="list" id="palette:list" style="position: absolute; left: 0px; top: 240px; width: 200px;">
+<table class="datatable" style="width: 200px;"><tr><td class="datatd">list</td></tr><tr><td class="datatd">...</td></tr></table>
+</span>
+<span class="table" id="palette:table" style="position: absolute; left: 0px; top: 290px; width: 200px;">
+<table class="datatable" style="width: 200px;"><tr><td class="datatdl">table</td><td class="datatdr">...</td></tr><tr><td class="datatdl">...</td><td class="datatdr">...</td></tr></table>
+</span>
+<span class="link" id="palette:link" style="position: absolute; left: 0px; top: 340px;"><a href="/"><span>link</span></a></span>
+<span class="text" id="palette:text" style="position: absolute; left: 0px; top: 370px;"><span>text</span></span>
+<span class="iframe fakeframe" id="palette:iframe" style="position: absolute; left: 0px; top: 400px; width: 200px;"><a href="/public/iframe-min.html"><span class="fakeframe"><span>frame ...</span></span></a></span>
+<span class="img" id="palette:img" style="position: absolute; left: 0px; top: 430px;"><img id="imgimg"/></span>
+</div>
+
+<div id="playdiv" style="visibility: hidden; position: absolute; top: 0px; left: 0px; width: 2500px; height: 5000px;">
+</div>
+
+</div>
+
+<div id="buffer" style="visibility: hidden; width: 0px; height: 0px"></div>
+
+<script type="text/javascript">
+
+// Get the app name
+var appname = ui.fragmentParams(location)['app'];
+
+/**
+ * Return the link to an app.
+ */
+function applink(appname) {
+ var protocol = location.protocol;
+ var host = location.hostname;
+ var port = ':' + location.port;
+ if (port == ':80' || port == ':443' || port == ':')
+ port = '';
+ var link = protocol + '//' + host + port + '/' + appname + '/';
+ return link;
+}
+
+// Set page titles
+document.title = ui.windowtitle(location.hostname) + ' - Page - ' + appname;
+$('appNameHeader').innerHTML = '<a href=\"/' + appname + '/\" target=\"' + '_blank' + '\">' + appname + '</a>';
+
+/**
+ * Page editor area, widget value field, add, delete and play page buttons.
+ */
+var cdiv = $('contentdiv');
+var ediv = $('editdiv');
+var evisible = true;
+var pdiv = $('playdiv');
+var wvalue = $('widgetValue');
+var wadd = $('addWidgetButton');
+var wdelete = $('deleteWidgetButton');
+var wcopy = $('copyWidgetButton');
+var pplay = $('playPageButton');
+
+// Set images
+$('editgrid').parentNode.style.background = 'url(\'' + ui.b64img(appcache.get('/public/grid72.b64')) + '\')';
+$('imgimg').src = ui.b64img(appcache.get('/public/img.b64'));
+
+// Position edit and play divs inside the content div
+ediv.style.position = 'absolute';
+ediv.style.top = cdiv.offsetTop + 'px';
+pdiv.style.position = 'absolute';
+pdiv.style.top = cdiv.offsetTop + 'px';
+
+// Position background divs
+var wvbackground = $('widgetValueBackground');
+var wvtable = $('widgetValueTable');
+wvbackground.style.top = ui.pixpos(wvtable.offsetTop);
+
+/**
+ * Adjust widget value field size.
+ */
+function resizeFields() {
+ wvalue.style.width = '0px';
+ wvalue.style.width = ui.pixpos(wvalue.parentNode.clientWidth - 18);
+ return true;
+}
+
+resizeFields();
+window.onresize = resizeFields;
+
+// Init component references
+var editWidget = sca.component('EditWidget');
+var pages = sca.reference(editWidget, 'pages');
+
+/**
+ * Page editing functions.
+ */
+var page = {};
+
+/**
+ * Default positions and sizes.
+ */
+page.palcx = 2500;
+
+/**
+ * Init a page editor. Works with all browsers except IE.
+ */
+page.edit = function(elem, wvalue, wadd, wcopy, wdelete, onchange, onselect) {
+
+ // Track element dragging and selection
+ page.dragging = null;
+ page.selected = null;
+ wvalue.disabled = true;
+ wvalue.style.visibility = 'hidden';
+ wcopy.disabled = true;
+ wdelete.disabled = true;
+
+ // Trigger widget select and page change events
+ page.onpagechange = onchange;
+ page.onwidgetselect = onselect;
+
+ /**
+ * Handle a mouse down event.
+ */
+ elem.onmousedown = function(e) {
+
+ // On mouse controlled devices, engage the click component selection
+ // logic right away
+ if (typeof e.touches == 'undefined')
+ elem.onclick(e);
+
+ // Find a draggable element
+ var dragging = page.draggable(e.target, elem);
+ if (dragging == null || dragging != page.selected)
+ return true;
+ page.dragging = dragging;
+
+ // Remember mouse position
+ var pos = typeof e.touches != "undefined"? e.touches[0] : e;
+ page.dragX = pos.screenX;
+ page.dragY = pos.screenY;
+
+ if (e.preventDefault)
+ e.preventDefault();
+ else
+ e.returnValue = false;
+ return true;
+ };
+
+ // Support touch devices
+ elem.ontouchstart = elem.onmousedown;
+
+ /**
+ * Handle a mouse up event.
+ */
+ elem.onmouseup = function(e) {
+ if (page.dragging == null)
+ return true;
+
+ // Snap to grid
+ var newX = page.gridsnap(ui.numpos(page.dragging.style.left));
+ var newY = page.gridsnap(ui.numpos(page.dragging.style.top));
+ page.dragging.style.left = ui.pixpos(newX);
+ page.dragging.style.top = ui.pixpos(newY);
+ page.dragging.cover.style.left = ui.pixpos(newX);
+ page.dragging.cover.style.top = ui.pixpos(newY);
+
+ // Fixup widget style
+ page.fixupwidget(page.dragging);
+
+ // Forget dragged element
+ page.dragging = null;
+
+ // Trigger page change event
+ page.onpagechange(false);
+ return true;
+ };
+
+ // Support touch devices
+ elem.ontouchend = elem.onmouseup;
+
+ /**
+ * Handle a mouse move event.
+ */
+ window.onmousemove = function(e) {
+ if (page.dragging == null)
+ return true;
+
+ // Get the mouse position
+ var pos = typeof e.touches != "undefined"? e.touches[0] : e;
+ if (pos.screenX == page.dragX && pos.screenY == page.dragY)
+ return true;
+
+ // Compute position of dragged element
+ var curX = ui.numpos(page.dragging.style.left);
+ var curY = ui.numpos(page.dragging.style.top);
+ var newX = curX + (pos.screenX - page.dragX);
+ var newY = curY + (pos.screenY - page.dragY);
+ if (newX >= page.palcx)
+ page.dragX = pos.screenX;
+ else
+ newX = page.palcx;
+ if (newY >= 0)
+ page.dragY = pos.screenY;
+ else
+ newY = 0;
+
+ // Move the dragged element
+ page.dragging.style.left = ui.pixpos(newX);
+ page.dragging.style.top = ui.pixpos(newY);
+ page.dragging.cover.style.left = ui.pixpos(newX);
+ page.dragging.cover.style.top = ui.pixpos(newY);
+ return true;
+ };
+
+ // Support touch devices
+ elem.ontouchmove = window.onmousemove;
+
+ /**
+ * Handle a mouse click event.
+ */
+ elem.onclick = function(e) {
+
+ // Find selected element
+ var selected = page.draggable(e.target, elem);
+ if (selected == null) {
+ if (page.selected != null) {
+
+ // Reset current selection
+ page.widgetselect(page.selected, false, wvalue, wcopy, wdelete);
+ page.selected = null;
+
+ // Trigger widget select event
+ page.onwidgetselect(null);
+ }
+
+ // Dismiss the palette
+ if (ui.numpos(elem.style.left) != (page.palcx * -1))
+ elem.style.left = ui.pixpos(page.palcx * -1);
+
+ return true;
+ }
+
+ // Deselect the previously selected element
+ page.widgetselect(page.selected, false, wvalue, wcopy, wdelete);
+
+ // Clone element dragged from palette
+ if (selected.id.substring(0, 8) == 'palette:') {
+ page.selected = page.clone(selected);
+
+ // Move into the editing area and hide the palette
+ page.selected.style.left = ui.pixpos(ui.numpos(page.selected.style.left) + page.palcx);
+ page.selected.cover.style.left = ui.pixpos(ui.numpos(page.selected.cover.style.left) + page.palcx);
+ elem.style.left = ui.pixpos(page.palcx * -1);
+
+ // Bring it to the top
+ page.bringtotop(page.selected);
+
+ // Trigger page change event
+ page.onpagechange(true);
+
+ } else {
+
+ // Bring selected element to the top
+ page.selected = selected;
+ page.bringtotop(page.selected);
+ }
+
+ // Select the element
+ page.widgetselect(page.selected, true, wvalue, wcopy, wdelete);
+
+ // Trigger widget select event
+ page.onwidgetselect(page.selected);
+
+ return true;
+ };
+
+ /**
+ * Handle field on change events.
+ */
+ wvalue.onchange = wvalue.onblur = function() {
+ if (page.selected == null)
+ return false;
+ page.settext(page.selected, wvalue.value);
+ page.selected.cover.style.width = ui.pixpos(page.selected.clientWidth + 4);
+ page.selected.cover.style.height = ui.pixpos(page.selected.clientHeight + 4);
+
+ // Trigger page change event
+ page.onpagechange(true);
+ return false;
+ };
+
+ // Handle add widget event.
+ wadd.onclick = function() {
+
+ // Show the palette
+ elem.style.left = ui.pixpos(0);
+ return false;
+ };
+
+ // Handle delete event.
+ wdelete.onclick = function() {
+ if (page.selected == null)
+ return false;
+
+ // Reset current selection
+ page.widgetselect(page.selected, false, wvalue, wcopy, wdelete);
+
+ // Remove selected widget
+ page.selected.parentNode.removeChild(page.selected);
+ page.selected.cover.parentNode.removeChild(page.selected.cover);
+ page.selected = null;
+
+ // Trigger widget select event
+ page.onwidgetselect(null);
+
+ // Trigger page change event
+ page.onpagechange(true);
+ return false;
+ };
+
+ // Handle copy event.
+ wcopy.onclick = function() {
+ if (page.selected == null)
+ return false;
+ if (page.selected.id.substring(0, 8) == 'palette:')
+ return false;
+
+ // Reset current selection
+ page.widgetselect(page.selected, false, wvalue, wcopy, wdelete);
+
+ // Clone selected widget
+ page.selected = page.clone(page.selected);
+
+ // Move 10 pixels down right
+ page.selected.style.left = ui.pixpos(ui.numpos(page.selected.style.left) + 10);
+ page.selected.style.top = ui.pixpos(ui.numpos(page.selected.style.top) + 10);
+ page.selected.cover.style.left = ui.pixpos(ui.numpos(page.selected.cover.style.left) + 10);
+ page.selected.cover.style.top = ui.pixpos(ui.numpos(page.selected.cover.style.top) + 10);
+
+ // Bring it to the top
+ page.bringtotop(page.selected);
+
+ // Select the element
+ page.widgetselect(page.selected, true, wvalue, wcopy, wdelete);
+
+ // Trigger widget select event
+ page.onwidgetselect(page.selected);
+
+ // Trigger page change event
+ page.onpagechange(true);
+ return false;
+ };
+
+ // Cover child elements with span elements to prevent
+ // any input events to reach them
+ map(page.cover, nodeList(elem.childNodes));
+
+ return elem;
+};
+
+/**
+ * Return the text of a widget.
+ */
+page.text = function(e) {
+ function formula(e) {
+ var f = e.id;
+ if (f.substring(0, 5) != 'page:')
+ return '=' + f;
+ return '';
+ }
+
+ function constant(e, f) {
+ if (e.className == 'h1' || e.className == 'h2' || e.className == 'text' || e.className == 'section') {
+ var t = car(childElements(e)).innerHTML;
+ return t == f? '' : t;
+ }
+ if (e.className == 'button' || e.className == 'checkbox') {
+ var t = car(childElements(e)).value;
+ return t == f? '' : t;
+ }
+ if (e.className == 'entry' || e.className == 'password') {
+ var t = car(childElements(e)).defaultValue;
+ return t == f? '' : t;
+ }
+ if (e.className == 'select') {
+ var t = car(childElements(car(childElements(e)))).value;
+ return t == f? '' : t;
+ }
+ if (e.className == 'link') {
+ var lhr = car(childElements(e)).href;
+ var hr = lhr.substring(0, 5) == 'link:'? lhr.substring(5) : '';
+ var t = car(childElements(car(childElements(e)))).innerHTML;
+ return t == f? hr : (t == hr? hr : (t == ''? hr : hr + ',' + t));
+ }
+ if (e.className == 'img') {
+ var src = car(childElements(e)).src;
+ return src == location.href? '' : src;
+ }
+ if (e.className == 'iframe') {
+ var hr = car(childElements(e)).href;
+ return hr == location.href? '' : hr;
+ }
+ if (e.className == 'list')
+ return '';
+ if (e.className == 'table')
+ return '';
+ return '';
+ }
+
+ var f = formula(e);
+ var c = constant(e, f);
+ return f == ''? c : (c == ''? f : f + ',' + c);
+};
+
+/**
+ * Return true if a widget has editable text.
+ */
+page.hastext = function(e) {
+ if (e.className == 'h1' || e.className == 'h2' || e.className == 'text' || e.className == 'section')
+ return true;
+ if (e.className == 'button' || e.className == 'checkbox')
+ return true;
+ if (e.className == 'entry' || e.className == 'password')
+ return true;
+ if (e.className == 'select')
+ return false;
+ if (e.className == 'link')
+ return true;
+ if (e.className == 'img')
+ return true;
+ if (e.className == 'iframe')
+ return true;
+ if (e.className == 'list')
+ return false;
+ if (e.className == 'table')
+ return false;
+ return false;
+};
+
+/**
+ * Set the text of a widget.
+ */
+page.settext = function(e, t) {
+ function formula(t) {
+ if (t.length > 1 && t.substring(0, 1) == '=')
+ return car(t.split(','));
+ return '';
+ }
+
+ function constant(t) {
+ return t.length > 1 && t.substring(0, 1) == '='? cdr(t.split(',')) : t.split(',');
+ }
+
+ var f = formula(t);
+ var c = constant(t);
+
+ e.id = f != ''? f.substring(1) : ('page:' + e.className);
+
+ if (e.className == 'h1' || e.className == 'h2' || e.className == 'text' || e.className == 'section') {
+ car(childElements(e)).innerHTML = isNil(c)? f : car(c);
+ return t;
+ }
+ if (e.className == 'button' || e.className == 'entry' || e.className == 'password') {
+ car(childElements(e)).defaultValue = isNil(c)? f : car(c);
+ return t;
+ }
+ if (e.className == 'checkbox') {
+ car(childElements(e)).value = isNil(c)? f : car(c);
+ map(function(n) { if (n.nodeName == "SPAN") n.innerHTML = isNil(c)? f : car(c); return n; }, nodeList(e.childNodes));
+ return t;
+ }
+ if (e.className == 'select') {
+ var ce = car(childElements(car(childElements(e))));
+ ce.value = isNil(c)? f : car(c);
+ ce.innerHTML = isNil(c)? f : car(c);
+ return t;
+ }
+ if (e.className == 'list') {
+ e.innerHTML = '<table class="datatable" style="width: 100%;;"><tr><td class="datatd">' + (isNil(c)? f : car(c)) + '</td></tr><tr><td class="datatd">...</td></tr></table>';
+ return t;
+ }
+ if (e.className == 'table') {
+ e.innerHTML = '<table class="datatable" style="width: 100%;"><tr><td class="datatdl">' + (isNil(c)? f : car(c)) + '</td><td class="datatdr">...</td></tr><tr><td class="datatdl">...</td><td class="datatdr">...</td></tr></table>';
+ return t;
+ }
+ if (e.className == 'link') {
+ var ce = car(childElements(e));
+ ce.href = isNil(c)? 'link:/index.html' : ('link:' + car(c));
+ car(childElements(ce)).innerHTML = isNil(c)? (f != ''? f : '/index.html') : isNil(cdr(c))? (f != ''? f : car(c)) : cadr(c);
+ return t;
+ }
+ if (e.className == 'img') {
+ car(childElements(e)).src = isNil(c)? '/public/img.png' : car(c);
+ return t;
+ }
+ if (e.className == 'iframe') {
+ car(childElements(e)).href = isNil(c)? '/public/iframe-min.html' : car(c);
+ return t;
+ }
+ return '';
+};
+
+/**
+ * Initial fixup of a widget.
+ */
+page.fixupwidget = function(e) {
+ if (e.className == 'iframe') {
+ var f = car(childElements(e));
+ //e.innerHTML = '<iframe src="' + f.href + '" frameborder="no" scrolling="no"></iframe>';
+ return e;
+ }
+ if (e.className == 'section') {
+ e.style.width = '100%';
+ return e;
+ }
+ if (e.className == 'list') {
+ e.style.width = '100%';
+ car(childElements(e)).style.width = '100%';
+ return e;
+ }
+ if (e.className == 'table') {
+ e.style.width = '100%';
+ car(childElements(e)).style.width = '100%';
+ return e;
+ }
+ if (e.className == 'img') {
+ var i = car(childElements(e));
+ if (i.src != '' && i.src.substring(0, 5) == 'data:')
+ i.src = '/public/img.png';
+ return e;
+ }
+ return e;
+}
+
+/**
+ * Find a draggable element in a hierarchy of elements.
+ */
+page.draggable = function(n, e) {
+ if (n == e)
+ return null;
+ if (n.id != '')
+ return n;
+ if (n.covered)
+ return n.covered;
+ return page.draggable(n.parentNode, e);
+}
+
+/**
+ * Align a pos along a 9pixel grid.
+ */
+page.gridsnap = function(x) {
+ return Math.round(x / 9) * 9;
+}
+
+/**
+ * Bring an element and its parent to the top.
+ */
+page.bringtotop = function(n) {
+ n.parentNode.appendChild(n);
+ n.cover.parentNode.appendChild(n.cover);
+}
+
+/**
+ * Draw widget selection.
+ */
+page.widgetselect = function(n, s, wvalue, wcopy, wdelete) {
+ if (isNil(n) || !s) {
+ // Clear the widget value field
+ wvalue.value = '';
+ wvalue.disabled = true;
+ wvalue.style.visibility = 'hidden';
+ wcopy.disabled = true;
+ wdelete.disabled = true;
+
+ // Clear the widget outline
+ if (!isNil(n))
+ n.cover.style.borderWidth = '0px';
+ return true;
+ }
+
+ // Update the widget value field
+ wvalue.value = page.text(n);
+ wvalue.disabled = false;
+ wvalue.style.visibility = 'visible';
+ wcopy.disabled = false;
+ wdelete.disabled = false;
+
+ // Outline the widget
+ n.cover.style.borderWidth = '2px';
+ return true;
+};
+
+/**
+ * Cover a page element with a <span> element to prevent
+ * any input events to reach it.
+ */
+page.cover = function(e) {
+ if (e.id == '' || isNil(e.style))
+ return e;
+ var cover = document.createElement('div');
+ cover.style.position = 'absolute';
+ cover.style.left = ui.pixpos(ui.numpos(e.style.left) - 2);
+ cover.style.top = ui.pixpos(ui.numpos(e.style.top) - 2);
+ cover.style.width = ui.pixpos(e.clientWidth + 4);
+ cover.style.height = ui.pixpos(e.clientHeight + 4);
+ cover.style.visibility = 'inherit';
+ cover.style.borderStyle = 'solid';
+ cover.style.borderWidth = '0px';
+ cover.style.borderColor = '#598edd';
+ cover.style.padding = '0px';
+ cover.style.margin = '0px';
+ cover.covered = e;
+ e.cover = cover;
+ e.parentNode.appendChild(cover);
+ return e;
+}
+
+/**
+ * Clone a palette element.
+ */
+page.clone = function(e) {
+
+ /**
+ * Clone an element's HTML.
+ */
+ function mkclone(e) {
+ var ne = document.createElement('span');
+
+ // Skip the palette: prefix
+ ne.id = 'page:' + e.id.substr(8);
+
+ // Copy the class and HTML content
+ ne.className = e.className;
+ ne.innerHTML = e.innerHTML;
+
+ // Fixup the widget style
+ page.fixupwidget(ne);
+
+ return ne;
+ }
+
+ /**
+ * Clone an element's position.
+ */
+ function posclone(ne, e) {
+ ne.style.position = 'absolute';
+ ne.style.left = ui.pixpos(ui.numpos(e.style.left));
+ ne.style.top = ui.pixpos(ui.numpos(e.style.top));
+ e.parentNode.appendChild(ne);
+ page.cover(ne);
+ return ne;
+ }
+
+ return posclone(mkclone(e), e);
+};
+
+/**
+ * Return the page in an ATOM entry.
+ */
+function atompage(doc) {
+ var entry = atom.readATOMEntry(mklist(doc));
+ if (isNil(entry))
+ return mklist();
+ var content = namedElementChild("'content", car(entry));
+ if (content == null)
+ return mklist();
+ return elementChildren(content);
+}
+
+/**
+ * Track the current page saved XHTML content.
+ */
+var savedpagexhtml = '';
+
+/**
+ * Track the current widget.
+ */
+var widget = null;
+
+/**
+ * Get and display an app page.
+ */
+function getpage(name, ediv) {
+ if (isNil(name))
+ return false;
+ showStatus('Loading');
+
+ return pages.get(name, function(doc) {
+
+ // Stop now if we didn't get a page
+ if (doc == null) {
+ showStatus('No data');
+ return false;
+ }
+ showStatus(defaultStatus());
+
+ // Convert the page to XHTML and place it in a hidden buffer
+ var buffer = $('buffer');
+ var el = atompage(doc);
+
+ // Create a default empty page if necessary
+ if (isNil(el))
+ buffer.innerHTML = '<div id="page"></div>';
+ else
+ buffer.innerHTML = writeStrings(writeXML(el, false));
+
+ // Remove any existing page nodes from the editor div
+ var fnodes = filter(function(e) {
+ if (isNil(e.id) || e.id == '' || e.id.substr(0, 8) == 'palette:')
+ return false;
+ var x = ui.numpos(e.style.left) - 2500;
+ if (x < 0 || ui.numpos(e.style.top) < 0)
+ return false;
+ return true;
+ }, nodeList(ediv.childNodes));
+
+ map(function(e) {
+ ediv.removeChild(e);
+ }, fnodes);
+
+ // Append new page nodes to editor
+ map(function(e) {
+ ediv.appendChild(e);
+ if (!isNil(e.style))
+ e.style.left = ui.pixpos(ui.numpos(e.style.left) + 2500);
+ return page.cover(e);
+ }, nodeList(buffer.childNodes[0].childNodes));
+
+ savedpagexhtml = pagexhtml(ediv);
+ return true;
+ });
+}
+
+/**
+ * Handle add widget button click event.
+ */
+wadd.onclick = function(e) {
+ // Show the widget palette
+ ediv.style.left = ui.pixpos(0);
+};
+
+/**
+ * Return the current page XHTML content.
+ */
+function pagexhtml(ediv) {
+
+ // Copy page DOM to hidden buffer
+ var buffer = $('buffer');
+ buffer.innerHTML = '<div id="page"></div>'
+ var div = buffer.childNodes[0];
+
+ // Capture the nodes inside the page div
+ div.innerHTML = ediv.innerHTML;
+ var nodes = nodeList(div.childNodes);
+ map(function(e) {
+ div.removeChild(e);
+ return e;
+ }, nodes);
+
+ // Filter out palette and editor artifacts, which are not
+ // part of the page, as well as nodes positioned out the
+ // editing area
+ var fnodes = filter(function(e) {
+ if (isNil(e.id) || e.id == '' || e.id.substr(0, 8) == 'palette:')
+ return false;
+ var x = ui.numpos(e.style.left) - 2500;
+ if (x < 0 || ui.numpos(e.style.top) < 0)
+ return false;
+ return true;
+ }, nodes);
+
+ // Reposition nodes
+ map(function(e) {
+ var x = ui.numpos(e.style.left) - 2500;
+ e.style.left = ui.pixpos(x);
+ return e;
+ }, fnodes);
+
+ // Sort them by position
+ var snodes = fnodes.sort(function(a, b) {
+ var ay = ui.numpos(a.style.top);
+ var by = ui.numpos(b.style.top);
+ if (ay < by) return -1;
+ if (ay > by) return 1;
+ var ax = ui.numpos(a.style.left);
+ var bx = ui.numpos(b.style.left);
+ if (ax < bx) return -1;
+ if (ax > bx) return 1;
+ return 0;
+ });
+
+ // Append the sorted nodes back to the div in order
+ map(function(e) {
+ div.appendChild(e);
+ return e;
+ }, snodes);
+
+ // Convert the page to XHTML
+ var lxhtml = readXHTMLElement(div);
+ var xhtml = writeStrings(writeXML(lxhtml, false));
+ return xhtml;
+}
+
+/**
+ * Save the current page.
+ */
+function save(newxml) {
+ showStatus('Saving');
+
+ // Get the current page XHTML content
+ savedpagexhtml = newxml;
+
+ // Update the page ATOM entry
+ var entry = '<entry xmlns="http://www.w3.org/2005/Atom">' +
+ '<title type="text">' + appname + '</title><id>' + appname + '</id><content type="application/xml">' +
+ newxml + '</content></entry>';
+
+ pages.put(appname, entry, function(e) {
+ if (e) {
+ showStatus('Local copy');
+ return false;
+ }
+ showStatus('Saved');
+ return false;
+ });
+ return true;
+};
+
+/**
+ * Handle a page change event
+ */
+function onpagechange(prop) {
+ var newxml = pagexhtml(ediv);
+ if (savedpagexhtml == newxml)
+ return false;
+ showStatus('Modified');
+
+ // Save property changes right away
+ if (prop)
+ return save(newxml);
+
+ // Autosave other changes after 1 second
+ setTimeout(function() {
+ if (savedpagexhtml == newxml) {
+ showStatus('Saved');
+ return false;
+ }
+ return save(newxml);
+ }, 1000);
+ return true;
+}
+
+/**
+ * Handle a widget select event.
+ */
+function onwidgetselect(w) {
+ if (w == widget)
+ return true;
+ widget = w;
+
+ function updateButton(b, v) {
+ b.style.color = v? '#000000' : '#808080';
+ }
+
+ updateButton(wdelete, !isNil(w));
+ updateButton(wcopy, !isNil(w));
+ return true;
+}
+
+/**
+ * Play page in a frame.
+ */
+function playpage() {
+ if (!evisible)
+ return true;
+ page.widgetselect(widget, false, wvalue, wcopy, wdelete);
+ page.selected = null;
+ wvalue.value = applink(appname);
+ pplay.innerHTML = '&lt;';
+ evisible = false;
+ pdiv.style.visibility = 'visible';
+ pdiv.innerHTML = '';
+ pdiv.innerHTML = '<iframe id="playappframe" style="position: relative; height: 5000px; width: 2500px; border: 0px;" scrolling="no" frameborder="0" src="/' +
+ appname + '"></iframe>';
+ setTimeout(function() {
+ ediv.style.visibility = 'hidden'
+ }, 0);
+ return true;
+}
+
+/**
+ * Show the page editor.
+ */
+function showedit() {
+ if (evisible)
+ return true;
+ pplay.innerHTML = '&gt;';
+ ediv.style.visibility = 'visible'
+ evisible = true;
+ page.widgetselect(widget, true, wvalue, wcopy, wdelete);
+ page.selected = widget;
+ setTimeout(function() {
+ pdiv.style.visibility = 'hidden';
+ pdiv.innerHTML = '';
+ }, 0);
+ return true;
+}
+
+/**
+ * Handle play page button event.
+ */
+pplay.onclick = function() {
+ if (!evisible)
+ return showedit();
+ return playpage();
+}
+
+// Initialize the page editor
+page.edit(ediv, wvalue, wadd, wcopy, wdelete, onpagechange, onwidgetselect);
+
+// Get and display the current app page
+getpage(appname, ediv);
+
+</script>
+
+</div>