2 * Copyright (C) 2010 Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
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15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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31 WebInspector.HelpScreen = function(title)
33 this._element = document.createElement("div");
34 this._element.className = "help-window-outer";
35 this._element.addEventListener("keydown", this._onKeyDown.bind(this), false);
37 var mainWindow = this._element.createChild("div", "help-window-main");
38 var captionWindow = mainWindow.createChild("div", "help-window-caption");
39 var closeButton = captionWindow.createChild("button", "help-close-button");
40 this.contentElement = mainWindow.createChild("div", "help-content");
41 this.contentElement.tabIndex = 0;
42 this.contentElement.addEventListener("blur", this._onBlur.bind(this), false);
43 captionWindow.createChild("h1", "help-window-title").textContent = title;
45 closeButton.textContent = "\u2716"; // Code stands for HEAVY MULTIPLICATION X.
46 closeButton.addEventListener("click", this.hide.bind(this), false);
48 WebInspector.KeyboardShortcut.Keys.Enter.code,
49 WebInspector.KeyboardShortcut.Keys.Esc.code,
50 WebInspector.KeyboardShortcut.Keys.Space.code,
54 WebInspector.HelpScreen.prototype = {
55 show: function(onHide)
60 document.body.appendChild(this._element);
62 this._onHide = onHide;
63 this._previousFocusElement = WebInspector.currentFocusElement;
64 WebInspector.currentFocusElement = this.contentElement;
72 this._isShown = false;
73 document.body.removeChild(this._element);
74 WebInspector.currentFocusElement = this._previousFocusElement;
81 _onKeyDown: function(event)
83 if (this._isShown && this._closeKeys.indexOf(event.keyCode) >= 0) {
85 event.stopPropagation();
91 // Pretend we're modal, grab focus back if we're still shown.
93 WebInspector.currentFocusElement = this.contentElement;