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composer_widgets.js
File metadata and controls
1525 lines (1372 loc) · 51.8 KB
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/* Copyright 2008 Orbitz WorldWide
*
* Licensed 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.
*
*
* ======================================================================
*
* PLEASE DO NOT USE A COMMA AFTER THE FINAL ITEM IN A LIST.
*
* ======================================================================
*
* It works fine in FF / Chrome, but completely breaks Internet Explorer.
* Thank you.
*
*/
var DEFAULT_WINDOW_WIDTH = 600;
var DEFAULT_WINDOW_HEIGHT = 400;
var Composer;
function createComposerWindow(myComposer) {
//This global is an ugly hack, probly need to make these widgets into more formal objects
//and keep their associated Composer object as an attribute.
Composer = myComposer;
//Can't define this inline because I need a reference in a closure below
var timeDisplay = new Ext.Toolbar.TextItem({text: "Now showing the past 24 hours"});
var topToolbar = [
createToolbarButton('Update Graph', 'refresh.png', updateGraph),
createToolbarButton('Select a Date Range', 'calendar.png', toggleWindow(createCalendarWindow) ),
createToolbarButton('Select Recent Data', 'clock.png', toggleWindow(createRecentWindow) ),
createToolbarButton('Create from URL', 'upload.png', toggleWindow(createURLWindow) ),
createToolbarButton('Short URL', 'share.png', showShortUrl),
'-',
timeDisplay
];
if (GraphiteConfig.showMyGraphs) {
var saveButton = createToolbarButton('Save to My Graphs', 'save.png', saveMyGraph);
var deleteButton = createToolbarButton('Delete from My Graphs', 'trash.png', deleteMyGraph);
topToolbar.splice(0, 0, saveButton, deleteButton);
}
var bottomToolbar = [
{ text: "Graph Options", menu: createOptionsMenu() },
{ text: "Graph Data", handler: toggleWindow(GraphDataWindow.create.createDelegate(GraphDataWindow)) },
{ text: "Auto-Refresh", id: 'autorefresh_button', enableToggle: true, toggleHandler: toggleAutoRefresh }
];
var win = new Ext.Window({
width: DEFAULT_WINDOW_WIDTH,
height: DEFAULT_WINDOW_HEIGHT,
title: "Graphite Composer",
layout: "border",
region: "center",
maximizable: true,
closable: false,
tbar: topToolbar,
buttons: bottomToolbar,
buttonAlign: 'left',
items: { html: "<img id='image-viewer' src='" + document.body.dataset.baseUrl + "render'/>", region: "center" },
listeners: {
activate: keepDataWindowOnTop,
show: fitImageToWindow,
resize: fitImageToWindow
}
});
// Tack on some convenience closures
win.updateTimeDisplay = function (time) {
var text;
if (time.mode == 'date-range') {
text = "<b>From</b> " + time.startDate.toLocaleString();
text += " <b>Until</b> " + time.endDate.toLocaleString();
text = text.replace(/:00 /g, " "); // Strip out the seconds
} else if (time.mode == 'recent') {
text = "Now showing the past " + time.quantity + " " + time.units;
}
timeDisplay.getEl().dom.innerHTML = text;
};
win.updateUI = function () {
var toggled = Composer.url.getParam('autorefresh') ? true : false;
Ext.getCmp('autorefresh_button').toggle(toggled);
updateCheckItems();
};
win.getImage = function () {
return Ext.getDom('image-viewer');
};
return win;
}
function toggleWindow(createFunc) { // Convenience for lazily creating toggled dialogs
function toggler (button, e) {
if (!button.window) { //First click, create the window
button.window = createFunc();
}
if (button.window.isVisible()) {
button.window.hide();
} else {
button.window.show();
}
}
return toggler;
}
function ifEnter(func) { // Convenience decorator for specialkey listener definitions
return function (widget, e) {
if (e.getCharCode() == Ext.EventObject.RETURN) {
func(widget);
}
}
}
function keepDataWindowOnTop () {
if (GraphDataWindow.window && GraphDataWindow.window.isVisible()) {
GraphDataWindow.window.toFront();
}
}
function fitImageToWindow(win) {
Composer.url.setParam('width', win.getInnerWidth());
Composer.url.setParam('height', win.getInnerHeight());
try {
Composer.updateImage();
} catch (err) {
//An exception gets thrown when the initial resize event
//occurs prior to rendering the image viewer. Safe to ignore.
}
}
/* Toolbar stuff */
function createToolbarButton(tip, icon, handler) {
return new Ext.Toolbar.Button({
style: "margin: 0 5px; background:transparent url(" + document.body.dataset.staticRoot + "img/" + icon + ") no-repeat scroll 0% 50%",
handler: handler,
handleMouseEvents: false,
text: " ",
listeners: {
render: function (button) {
button.el.toolTip = new Ext.ToolTip({
html: tip,
showDelay: 100,
dismissDelay: 10000,
target: button.el
});
}
}
});
}
/* "Date Range" Calendar */
function createCalendarWindow() {
// Start/End labels
var style = "font-family: tahoma,arial,verdana,sans-serif; font-size:11px;";
var startDateHeader = {
html: "<center><span id='startDate' style=\"" + style + "\">Start Date</span></center>"
};
var endDateHeader = {
html: "<center><span id='endDate' style=\"" + style + "\">End Date</span></center>"
};
// Date controls
var startDateControl = new Ext.DatePicker({
id: 'start-date',
maxDate: new Date()
});
var endDateControl = new Ext.DatePicker({
id: 'end-date',
maxDate: new Date()
});
startDateControl.on('select', calendarSelectionMade);
endDateControl.on('select', calendarSelectionMade);
// Time controls
startTimeControl = new Ext.form.TimeField({
id: 'start-time',
increment: 30,
allowBlank: false,
value: "12:00 AM",
listeners: {select: calendarSelectionMade, specialkey: ifEnter(calendarSelectionMade)}
});
endTimeControl = new Ext.form.TimeField({
id: 'end-time',
allowBlank: false,
value: "11:59 PM",
listeners: {select: calendarSelectionMade, specialkey: ifEnter(calendarSelectionMade)}
});
var myWindow;
var resizeStuff = function () {
startTimeControl.setWidth( startDateControl.el.getWidth() );
endTimeControl.setWidth( endDateControl.el.getWidth() );
myWindow.setWidth( startDateControl.el.getWidth() + endDateControl.el.getWidth() + myWindow.getFrameWidth() );
//myWindow.setHeight( startDateControl.el.getHeight() + startTimeControl.el.getHeight() + myWindow.getFrameHeight() );
};
myWindow = new Ext.Window({
title: "Select Date Range",
layout: 'table',
height: 300,
width: 400,
layoutConfig: { columns: 2 },
closeAction: 'hide',
items: [
startDateHeader,
endDateHeader,
startDateControl,
endDateControl,
startTimeControl,
endTimeControl
],
listeners: {show: resizeStuff}
});
return myWindow;
}
function calendarSelectionMade(datePicker, selectedDate) {
var startDate = getCalendarSelection('start');
var endDate = getCalendarSelection('end');
Composer.url.setParam('from', asDateString(startDate) );
Composer.url.setParam('until', asDateString(endDate) );
Composer.updateImage();
Composer.window.updateTimeDisplay({
mode: 'date-range',
startDate: startDate,
endDate: endDate
});
}
function getCalendarSelection(which) {
var myDate = Ext.getCmp(which + '-date').getValue();
var myTime = Ext.getCmp(which + '-time').getEl().dom.value; // Need to grab the raw textfield value, which may not be selected
var myHour = myTime.match(/(\d+):/)[1];
var myMinute = myTime.match(/:(\d+)/)[1];
if (myTime.match(/\bAM\b/i) && myHour == '12') {
myHour = 0;
}
if (myTime.match(/\bPM\b/i) && myHour != '12') {
myHour = parseInt(myHour) + 12;
}
return myDate.add(Date.HOUR, myHour).add(Date.MINUTE, myMinute);
}
function asDateString(dateObj) {
return dateObj.format('H:i_Ymd');
}
/* Short url window */
function showShortUrl() {
showUrl = function(options, success, response) {
if(success) {
var win = new Ext.Window({
title: "Graph URL",
width: 600,
height: 125,
layout: 'border',
modal: true,
items: [
{
xtype: "label",
region: 'north',
style: "text-align: center;",
text: "Short Direct URL to this graph"
}, {
xtype: 'textfield',
region: 'center',
value: window.location.origin + response.responseText,
editable: false,
style: "text-align: center; font-size: large;",
listeners: {
focus: function (field) { field.selectText(); }
}
}
],
buttonAlign: 'center',
buttons: [
{text: "Close", handler: function () { win.close(); } }
]
});
win.show();
}
}
Ext.Ajax.request({
method: 'GET',
url: document.body.dataset.baseUrl + 's/render/?' + Composer.url.queryString,
callback: showUrl
});
}
/* "Recent Data" dialog */
function toggleWindow(createFunc) {
function toggler (button, e) {
if (!button.window) { //First click, create the window
button.window = createFunc();
}
if (button.window.isVisible()) {
button.window.hide();
} else {
button.window.show();
}
}
return toggler;
}
function createURLWindow() {
var urlField = new Ext.form.TextField({
id: 'from-url',
allowBlank: false,
vtype: 'url',
listeners: { change: urlChosen, specialkey: ifEnter(urlChosen) }
});
return new Ext.Window({
title: "Enter a URL to build graph from",
layout: 'fit',
height: 60,
width: 450,
closeAction: 'hide',
items: [
urlField
]
});
}
function urlChosen() {
var url = Ext.getCmp('from-url').getValue();
Composer.loadMyGraph("temp", decodeURIComponent(url))
}
function createRecentWindow() {
var quantityField = new Ext.form.NumberField({
id: 'time-quantity',
grow: true,
value: 24,
listeners: {change: recentSelectionMade, specialkey: ifEnter(recentSelectionMade)}
});
var unitSelector = new Ext.form.ComboBox({
id: 'time-units',
editable: false,
triggerAction: 'all',
mode: 'local',
store: ['minutes', 'hours', 'days', 'weeks', 'months', 'years'],
width: 75,
value: 'hours',
listeners: {select: recentSelectionMade}
});
return new Ext.Window({
title: "Select a Recent Time Range",
layout: 'table',
height: 60, //there's gotta be a way to auto-size these windows!
width: 235,
layoutConfig: { columns: 3 },
closeAction: 'hide',
items: [
{
html: "<div style=\"border: none; background-color: rgb(223,232,246)\">View the past</div>",
style: "border: none; background-color: rgb(223,232,246)"
},
quantityField,
unitSelector
]
});
}
function recentSelectionMade(combo, record, index) {
var quantity = Ext.getCmp('time-quantity').getValue();
var units = Ext.getCmp('time-units').getValue();
var fromString = '-' + quantity + units;
Composer.url.setParam('from', fromString);
Composer.url.removeParam('until');
Composer.updateImage();
Composer.window.updateTimeDisplay({
mode: 'recent',
quantity: quantity,
units: units
});
}
/* "Save to MyGraphs" */
function saveMyGraph(button, e) {
var myGraphName = "";
if (Composer.state.myGraphName) {
myGraphName = Composer.state.myGraphName;
var tmpArray = myGraphName.split('.');
if (tmpArray.length > 1) {
tmpArray = tmpArray.slice(1, tmpArray.length);
myGraphName = tmpArray.join('.');
}
}
Ext.MessageBox.prompt(
"Save to My Graphs", //title
"Please enter a name for your Graph", //prompt message
function (button, text) { //handler
if (button != 'ok') {
return;
}
if (!text) {
Ext.Msg.alert("You must enter a graph name!");
return;
}
if (text.charAt(text.length - 1) == '.') {
Ext.Msg.alert("Graph names cannot end in a period.");
return;
}
//Save the name for future use and re-load the "My Graphs" tree
Composer.state.myGraphName = text;
//Send the request
Ext.Ajax.request({
method: 'GET',
url: document.body.dataset.baseUrl + 'composer/mygraph/',
params: {action: 'save', graphName: text, url: Composer.url.getURL()},
callback: handleSaveMyGraphResponse
});
},
this, //scope
false, //multiline
myGraphName ? myGraphName : "" //default value
);
}
function handleSaveMyGraphResponse(options, success, response) {
var message;
if (success) {
Browser.trees.mygraphs.reload();
message = "Graph saved successfully";
} else {
message = "There was an error saving your Graph, please try again later.";
}
Ext.MessageBox.show({
title: "Save to My Graphs - Result",
msg: message,
buttons: Ext.MessageBox.OK
});
}
function deleteMyGraph() {
Ext.MessageBox.prompt(
"Delete a saved My Graph", //title
"Please enter the name of the My Graph you wish to delete", //prompt message
function (button, text) { //handler
if (button != 'ok') {
return;
}
if (!text) {
Ext.Msg.alert("Invalid My Graph name!");
return;
}
//Send the request
Ext.Ajax.request({
method: 'GET',
url: document.body.dataset.baseUrl + 'composer/mygraph/',
params: {action: 'delete', graphName: text},
callback: function (options, success, response) {
var message;
if (success) {
Browser.trees.mygraphs.reload();
message = "Graph deleted successfully";
} else {
message = "There was an error performing the operation.";
}
Ext.Msg.show({
title: 'Delete My Graph',
msg: message,
buttons: Ext.Msg.OK
});
}
});
},
this, //scope
false, //multiline
Composer.state.myGraphName ? Composer.state.myGraphName : "" //default value
);
}
/* Graph Data dialog */
var GraphDataWindow = {
create: function () {
var _this = this;
this.targetList = new Ext.ListView({
store: TargetStore,
multiSelect: true,
emptyText: "No graph targets",
reserveScrollOffset: true,
columnSort: false,
hideHeaders: true,
width: 385,
height: 140,
columns: [ {header: "Graph Targets", width: 1.0, dataIndex: "value"} ],
listeners: {
contextmenu: this.targetContextMenu,
afterrender: this.targetChanged,
selectionchange: this.targetChanged,
dblclick: function (targetList, index, node, e) {
targetList.select(index);
this.editTarget();
},
scope: this
}
});
var targetsPanel = new Ext.Panel({
region: 'center',
width: 400,
height: 200,
layout: 'fit',
items: this.targetList
});
var buttonPanel = new Ext.Panel({
region: 'east',
width: 100,
baseCls: 'x-window-mc',
layout: {
type: 'vbox',
align: 'stretch'
},
defaults: { xtype: 'button', disabled: true },
items: [
{
text: 'Add',
handler: this.addTarget.createDelegate(this),
disabled: false
}, {
text: 'Edit',
id: 'editTargetButton',
handler: this.editTarget.createDelegate(this)
}, {
text: 'Remove',
id: 'removeTargetButton',
handler: this.removeTarget.createDelegate(this)
}, {
text: 'Move',
id: 'moveButton',
menuAlign: 'tr-tl',
menu: {
subMenuAlign: 'tr-tl',
defaults: {
defaultAlign: 'tr-tl'
},
items: [
{ text: 'Move Up', handler: this.moveTargetUp.createDelegate(this) },
{ text: 'Move Down', handler: this.moveTargetDown.createDelegate(this) },
{ text: 'Swap', handler: this.swapTargets.createDelegate(this), id: 'menuSwapTargets' }
]
}
}, {
text: 'Apply Function',
id: 'applyFunctionButton',
menuAlign: 'tr-tl',
menu: {
subMenuAlign: 'tr-tl',
defaults: {
defaultAlign: 'tr-tl'
},
items: createFunctionsMenu()
}
}, {
text: 'Undo Function',
handler: this.removeOuterCall.createDelegate(this),
id: 'undoFunctionButton'
}
]
});
this.window = new Ext.Window({
title: "Graph Data",
height: 200,
width: 600,
closeAction: 'hide',
layout: 'border',
items: [
targetsPanel,
buttonPanel
],
listeners: {
afterrender: function () {
if (_this.targetList.getNodes().length > 0) {
_this.targetList.select(0);
}
}
}
});
return this.window;
},
targetChanged: function () {
if (!this.targetList) { return; } // Ignore initial call
var selected;
try {
selected = this.getSelectedTargets().length;
} catch (e) {
return;
}
if (selected == 0) {
Ext.getCmp('editTargetButton').disable();
Ext.getCmp('removeTargetButton').disable();
Ext.getCmp('applyFunctionButton').disable();
Ext.getCmp('undoFunctionButton').disable();
Ext.getCmp('moveButton').disable();
} else {
Ext.getCmp('editTargetButton').enable();
Ext.getCmp('removeTargetButton').enable();
Ext.getCmp('applyFunctionButton').enable();
Ext.getCmp('undoFunctionButton').enable();
Ext.getCmp('moveButton').enable();
}
// Swap Targets
if (selected == 2)
Ext.getCmp('menuSwapTargets').enable();
else
Ext.getCmp('menuSwapTargets').disable();
},
targetContextMenu: function (targetList, index, node, e) {
/* Select the right-clicked row unless it is already selected */
if (! targetList.isSelected(index) ) {
targetList.select(index);
}
var removeItem = {text: "Remove", handler: this.removeTarget.createDelegate(this)};
var editItem = {text: "Edit", handler: this.editTarget.createDelegate(this)};
var moveMenu = {
text: "Move",
menu: [
{ text: "Move Up", handler: this.moveTargetUp.createDelegate(this) },
{ text: "Move Down", handler: this.moveTargetDown.createDelegate(this) },
{ text: "Swap", handler: this.swapTargets.createDelegate(this), disabled: true }
]
};
if (this.getSelectedTargets().length == 0) {
removeItem.disabled = true;
editItem.disabled = true;
moveMenu.disabled = true;
}
if (this.getSelectedTargets().length == 2)
moveMenu.menu[2].disabled = false;
var contextMenu = new Ext.menu.Menu({ items: [removeItem, editItem, moveMenu] });
contextMenu.showAt( e.getXY() );
e.stopEvent();
},
applyFuncToEach: function (funcName, extraArg) {
var _this = this;
function applyFunc() {
Ext.each(_this.getSelectedTargets(),
function (target) {
var newTarget;
if (extraArg) {
newTarget = funcName + '(' + target + ',' + extraArg + ')';
} else {
newTarget = funcName + '(' + target + ')';
}
replaceTarget(target, newTarget);
_this.targetList.select( TargetStore.findExact('value', newTarget), true);
}
);
Composer.syncTargetList();
Composer.updateImage();
}
return applyFunc;
},
applyFuncToEachWithInput: function (funcName, question, options) {
if (options == null) {
options = {};
}
function applyFunc() {
Ext.MessageBox.prompt(
"Input Required", //title
question, //message
function (button, inputValue) { //handler
if (button == 'ok' && (options.allowBlank || inputValue != '')) {
if (options.quote) {
inputValue = '"' + inputValue + '"';
}
applyFuncToEach(funcName, inputValue)();
}
},
this, //scope
false, //multiline
"" //initial value
);
}
applyFunc = applyFunc.createDelegate(this);
return applyFunc;
},
applyFuncToAll: function (funcName) {
function applyFunc() {
var args = this.getSelectedTargets().join(',');
var oldTargets = this.getSelectedTargets();
var firstTarget = oldTargets.shift();
var newTarget = funcName + '(' + args + ')';
// Insert new target where the first selected was
replaceTarget(firstTarget,newTarget);
Ext.each(oldTargets,
function (target) {
removeTarget(target);
}
);
Composer.syncTargetList();
Composer.updateImage();
this.targetList.select( TargetStore.findExact('value', newTarget), true);
}
applyFunc = applyFunc.createDelegate(this);
return applyFunc;
},
removeOuterCall: function () {
/* It turns out that this is a big pain in the ass to do properly.
* The following code is *almost* correct. It will fail if there is
* an argument with a quoted parenthesis in it. Who cares... */
var _this = this;
Ext.each(this.getSelectedTargets(),
function (target) {
var args = [];
var i, c;
var lastArg = 0;
var depth = 0;
var argString = target.replace(/^[^(]+\((.+)\)/, "$1"); //First we strip it down to just args
for (i = 0; i < argString.length; i++) {
switch (argString.charAt(i)) {
case '(': depth += 1; break;
case '{': depth += 1; break;
case ')': depth -= 1; break;
case '}': depth -= 1; break;
case ',':
if (depth > 0) { continue; }
if (depth < 0) { Ext.Msg.alert("Malformed target, cannot remove outer call."); return; }
args.push( argString.substring(lastArg, i).replace(/^\s+/, '').replace(/\s+$/, '') );
lastArg = i + 1;
break;
}
}
args.push( argString.substring(lastArg, i) );
var firstIndex = indexOfTarget(target);
removeTarget(target);
args.reverse()
Ext.each(args, function (arg) {
if (!arg.match(/^([0123456789\.]+|".+"|'.*')$/)) { //Skip string and number literals
insertTarget(firstIndex, arg);
_this.targetList.select( TargetStore.findExact('value', arg), true);
}
});
Composer.syncTargetList();
Composer.updateImage();
}
);
},
addTarget: function (target) {
var metricCompleter;
var win;
metricCompleter = new MetricCompleter({
listeners: {
specialkey: function (field, e) {
if (e.getKey() == e.ENTER) {
var target = metricCompleter.getValue();
addTarget(target);
Composer.syncTargetList();
Composer.updateImage();
win.close();
e.stopEvent();
return false;
}
},
afterrender: function (field) {
metricCompleter.focus('', 500);
}
}
});
win = new Ext.Window({
title: "Add a new Graph Target",
id: 'addTargetWindow',
modal: true,
width: 400,
height: 115,
layout: {
type: 'vbox',
align:'stretch',
pack: 'center'
},
items: [
{xtype: 'label', text: "Type the path of your new Graph Target."},
metricCompleter
],
buttonAlign: 'center',
buttons: [
{
xtype: 'button',
text: 'OK',
handler: function () {
var target = metricCompleter.getValue();
addTarget(target);
Composer.syncTargetList();
Composer.updateImage();
win.close();
}
}, {
xtype: 'button',
text: 'Cancel',
handler: function () {
Ext.getCmp('addTargetWindow').close();
}
}
]
});
win.show();
},
removeTarget: function (item, e) {
Ext.each(this.getSelectedTargets(), function (target) {
removeTarget(target);
});
Composer.syncTargetList();
Composer.updateImage();
},
editTarget: function (item, e) {
var selected = this.targetList.getSelectedRecords();
if (selected.length != 1) {
Ext.MessageBox.show({
title: "Error",
msg: "You must select exactly one target to edit.",
icon: Ext.MessageBox.ERROR,
buttons: Ext.MessageBox.OK
});
return;
}
var record = selected[0];
var metricCompleter;
var win;
metricCompleter = new MetricCompleter({
value: record.get('value'),
listeners: {
specialkey: function (field, e) {
if (e.getKey() == e.ENTER) {
var target = metricCompleter.getValue();
record.set('value', target);
record.commit();
Composer.syncTargetList();
Composer.updateImage();
win.close();
e.stopEvent();
return false;
}
},
afterrender: function (field) {
metricCompleter.focus('', 500);
}
}
});
function editHandler () {
var newValue = metricCompleter.getValue();
if (newValue != '') {
record.set('value', newValue);
record.commit();
Composer.syncTargetList();
Composer.updateImage();
}
win.close();
}
editHandler = editHandler.createDelegate(this); //dynamic scoping can really be a bitch
win = new Ext.Window({
title: "Edit Graph Target",
id: 'editTargetWindow',
modal: true,
width: 400,
height: 115,
layout: {
type: 'vbox',
align:'stretch',
pack: 'center'
},
items: [
{xtype: 'label', text: "Edit the path of your Graph Target."},
metricCompleter
],
buttonAlign: 'center',
buttons: [
{
xtype: 'button',
text: 'OK',
handler: editHandler
}, {
xtype: 'button',
text: 'Cancel',
handler: function () {
win.close();
}
}
]
});
win.show();
},
moveTargetUp: function() {
this._moveTarget(-1);
},
moveTargetDown: function() {
this._moveTarget(1);
},
swapTargets: function() {
this._swapTargets();
},
_moveTarget: function(direction) {
store = this.targetList.getStore();
selectedRecords = this.targetList.getSelectedRecords();
// Don't move past boundaries
exit = false;
Ext.each(selectedRecords, function(record) {
index = store.indexOf(record);
if (direction == -1 && index == 0) {
exit = true;
return false;
}
else if (direction == 1 && index == store.getCount() - 1) {
exit = true;
return false;
}
});
if (exit)
return;
newSelections = [];
Ext.each(selectedRecords, function(recordA) {
indexA = store.indexOf( recordA );
valueA = recordA.get('value');
recordB = store.getAt( indexA + direction );
// swap
recordA.set('value', recordB.get('value'));
recordB.set('value', valueA);
recordA.commit();