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| 1 /* | |
| 2 * Copyright (C) 2010 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 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 | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 /** | |
| 32 * @constructor | |
| 33 * @param {string=} title | |
| 34 * @extends {WebInspector.VBox} | |
| 35 */ | |
| 36 WebInspector.HelpScreen = function(title) | |
| 37 { | |
| 38 WebInspector.VBox.call(this); | |
| 39 this.markAsRoot(); | |
| 40 this.registerRequiredCSS("ui/helpScreen.css"); | |
| 41 | |
| 42 this.element.classList.add("help-window-outer"); | |
| 43 this.element.addEventListener("keydown", this._onKeyDown.bind(this), false); | |
| 44 this.element.tabIndex = 0; | |
| 45 | |
| 46 if (title) { | |
| 47 var mainWindow = this.element.createChild("div", "help-window-main"); | |
| 48 var captionWindow = mainWindow.createChild("div", "help-window-caption")
; | |
| 49 captionWindow.appendChild(this.createCloseButton()); | |
| 50 this.helpContentElement = mainWindow.createChild("div", "help-content"); | |
| 51 captionWindow.createChild("h1", "help-window-title").textContent = title
; | |
| 52 } | |
| 53 } | |
| 54 | |
| 55 /** | |
| 56 * @type {?WebInspector.HelpScreen} | |
| 57 */ | |
| 58 WebInspector.HelpScreen._visibleScreen = null; | |
| 59 | |
| 60 WebInspector.HelpScreen.prototype = { | |
| 61 /** | |
| 62 * @return {!Element} | |
| 63 */ | |
| 64 createCloseButton: function() | |
| 65 { | |
| 66 var closeButton = createElementWithClass("div", "help-close-button", "dt
-close-button"); | |
| 67 closeButton.gray = true; | |
| 68 closeButton.addEventListener("click", this.hide.bind(this), false); | |
| 69 return closeButton; | |
| 70 }, | |
| 71 | |
| 72 showModal: function() | |
| 73 { | |
| 74 var visibleHelpScreen = WebInspector.HelpScreen._visibleScreen; | |
| 75 if (visibleHelpScreen === this) | |
| 76 return; | |
| 77 | |
| 78 if (visibleHelpScreen) | |
| 79 visibleHelpScreen.hide(); | |
| 80 WebInspector.HelpScreen._visibleScreen = this; | |
| 81 WebInspector.GlassPane.DefaultFocusedViewStack.push(this); | |
| 82 this.show(WebInspector.Dialog.modalHostView().element); | |
| 83 this.focus(); | |
| 84 }, | |
| 85 | |
| 86 hide: function() | |
| 87 { | |
| 88 if (!this.isShowing()) | |
| 89 return; | |
| 90 | |
| 91 WebInspector.HelpScreen._visibleScreen = null; | |
| 92 WebInspector.GlassPane.DefaultFocusedViewStack.pop(); | |
| 93 | |
| 94 WebInspector.restoreFocusFromElement(this.element); | |
| 95 this.detach(); | |
| 96 }, | |
| 97 | |
| 98 /** | |
| 99 * @param {number} keyCode | |
| 100 * @return {boolean} | |
| 101 */ | |
| 102 isClosingKey: function(keyCode) | |
| 103 { | |
| 104 return [ | |
| 105 WebInspector.KeyboardShortcut.Keys.Enter.code, | |
| 106 WebInspector.KeyboardShortcut.Keys.Esc.code, | |
| 107 WebInspector.KeyboardShortcut.Keys.Space.code, | |
| 108 ].indexOf(keyCode) >= 0; | |
| 109 }, | |
| 110 | |
| 111 _onKeyDown: function(event) | |
| 112 { | |
| 113 if (this.isShowing() && this.isClosingKey(event.keyCode)) { | |
| 114 this.hide(); | |
| 115 event.consume(); | |
| 116 } | |
| 117 }, | |
| 118 | |
| 119 __proto__: WebInspector.VBox.prototype | |
| 120 } | |
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