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/*
* Copyright (C) 2011 Google Inc. 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 Google Inc. 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 THE COPYRIGHT
* OWNER OR CONTRIBUTORS 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.
*/
WebInspector.PleaseWaitMessage = function()
{
this.element = document.createElement("div");
this.element.className = "please-wait-msg";
this.element.textContent = WebInspector.UIString("Please wait\u2026");
this.cancelButton = document.createElement("button");
this.cancelButton.textContent = WebInspector.UIString("Cancel");
this.cancelButton.addEventListener("click", this._cancelClicked.bind(this), false);
}
WebInspector.PleaseWaitMessage.prototype = {
_cancelClicked: function()
{
if (this._cancelCallback) {
var cancelCallback = this._cancelCallback;
delete this._cancelCallback;
cancelCallback();
}
},
hide: function()
{
var instance = WebInspector.PleaseWaitMessage.prototype.instance;
var message = instance.element;
if (message.parentNode)
message.parentNode.removeChild(message);
},
get instance()
{
if (!"_instance" in WebInspector.PleaseWaitMessage.prototype)
WebInspector.PleaseWaitMessage.prototype._instance = new WebInspector.PleaseWaitMessage();
return WebInspector.PleaseWaitMessage.prototype._instance;
},
show: function(element, cancelCallback)
{
var instance = WebInspector.PleaseWaitMessage.prototype.instance;
var message = instance.element;
if (message.parentNode === element)
return;
else if (message.parentNode)
message.parentNode.removeChild(message);
if (message.childNodes.length > 1)
message.removeChild(instance.cancelButton);
if (cancelCallback) {
message.appendChild(instance.cancelButton);
instance._cancelCallback = cancelCallback;
}
element.appendChild(message);
},
startAction: function(element, actionCallback, cancelCallback)
{
var instance = WebInspector.PleaseWaitMessage.prototype.instance;
var message = instance.element;
if (message.parentNode === element) {
actionCallback();
return;
}
function doAction()
{
try {
actionCallback();
} finally {
if (message.parentNode)
message.parentNode.removeChild(message);
}
}
WebInspector.PleaseWaitMessage.prototype.show(element, cancelCallback);
setTimeout(doAction, 0);
}
};
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