| /* |
| * Copyright (C) 2010 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.HelpScreen = function(title) |
| { |
| this._element = document.createElement("div"); |
| this._element.className = "help-window-outer"; |
| this._element.addEventListener("keydown", this._onKeyDown.bind(this), false); |
| |
| var mainWindow = this._element.createChild("div", "help-window-main"); |
| var captionWindow = mainWindow.createChild("div", "help-window-caption"); |
| var closeButton = captionWindow.createChild("button", "help-close-button"); |
| this.contentElement = mainWindow.createChild("div", "help-content"); |
| this.contentElement.tabIndex = 0; |
| this.contentElement.addEventListener("blur", this._onBlur.bind(this), false); |
| captionWindow.createChild("h1", "help-window-title").textContent = title; |
| |
| closeButton.textContent = "\u2716"; // Code stands for HEAVY MULTIPLICATION X. |
| closeButton.addEventListener("click", this._hide.bind(this), false); |
| this._closeKeys = [ |
| WebInspector.KeyboardShortcut.Keys.Enter.code, |
| WebInspector.KeyboardShortcut.Keys.Esc.code, |
| WebInspector.KeyboardShortcut.Keys.Space.code, |
| ]; |
| document.body.appendChild(this._element); |
| } |
| |
| WebInspector.HelpScreen.prototype = { |
| show: function() |
| { |
| if (this._isShown) |
| return; |
| |
| this._element.style.visibility = "visible"; |
| this._isShown = true; |
| this._previousFocusElement = WebInspector.currentFocusElement; |
| WebInspector.currentFocusElement = this.contentElement; |
| }, |
| |
| _hide: function() |
| { |
| this._isShown = false; |
| this._element.style.visibility = "hidden"; |
| WebInspector.currentFocusElement = this._previousFocusElement; |
| }, |
| |
| _onKeyDown: function(event) |
| { |
| if (this._isShown && this._closeKeys.indexOf(event.keyCode) >= 0) { |
| this._hide(); |
| event.stopPropagation(); |
| } |
| }, |
| |
| _onBlur: function() |
| { |
| // Pretend we're modal, grab focus back if we're still shown. |
| if (this._isShown) |
| WebInspector.currentFocusElement = this.contentElement; |
| } |
| } |