108 lines
4.0 KiB
JavaScript
108 lines
4.0 KiB
JavaScript
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/*
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* Copyright (C) 2011 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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WebInspector.PleaseWaitMessage = function()
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{
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this.element = document.createElement("div");
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this.element.className = "please-wait-msg";
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this.element.textContent = WebInspector.UIString("Please wait\u2026");
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this.cancelButton = document.createElement("button");
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this.cancelButton.textContent = WebInspector.UIString("Cancel");
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this.cancelButton.addEventListener("click", this._cancelClicked.bind(this), false);
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}
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WebInspector.PleaseWaitMessage.prototype = {
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_cancelClicked: function()
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{
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if (this._cancelCallback) {
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var cancelCallback = this._cancelCallback;
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delete this._cancelCallback;
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cancelCallback();
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}
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},
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hide: function()
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{
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var instance = WebInspector.PleaseWaitMessage.prototype.instance;
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var message = instance.element;
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if (message.parentNode)
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message.parentNode.removeChild(message);
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},
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get instance()
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{
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if (!"_instance" in WebInspector.PleaseWaitMessage.prototype)
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WebInspector.PleaseWaitMessage.prototype._instance = new WebInspector.PleaseWaitMessage();
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return WebInspector.PleaseWaitMessage.prototype._instance;
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},
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show: function(element, cancelCallback)
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{
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var instance = WebInspector.PleaseWaitMessage.prototype.instance;
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var message = instance.element;
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if (message.parentNode === element)
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return;
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else if (message.parentNode)
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message.parentNode.removeChild(message);
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if (message.childNodes.length > 1)
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message.removeChild(instance.cancelButton);
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if (cancelCallback) {
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message.appendChild(instance.cancelButton);
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instance._cancelCallback = cancelCallback;
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}
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element.appendChild(message);
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},
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startAction: function(element, actionCallback, cancelCallback)
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{
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var instance = WebInspector.PleaseWaitMessage.prototype.instance;
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var message = instance.element;
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if (message.parentNode === element) {
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actionCallback();
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return;
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}
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function doAction()
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{
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try {
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actionCallback();
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} finally {
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if (message.parentNode)
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message.parentNode.removeChild(message);
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}
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}
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WebInspector.PleaseWaitMessage.prototype.show(element, cancelCallback);
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setTimeout(doAction, 0);
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}
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};
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