1 files changed, 107 insertions, 0 deletions
diff --git a/Source/WebCore/inspector/front-end/PleaseWaitMessage.js b/Source/WebCore/inspector/front-end/PleaseWaitMessage.js
new file mode 100644
index 0000000..54d805d
--- /dev/null
+++ b/Source/WebCore/inspector/front-end/PleaseWaitMessage.js
@@ -0,0 +1,107 @@
+/*
+ * 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);
+    }
+};
+