| /* |
| * 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); |
| } |
| }; |
| |