diff options
Diffstat (limited to 'Source/WebCore/inspector/front-end/HelpScreen.js')
-rw-r--r-- | Source/WebCore/inspector/front-end/HelpScreen.js | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/Source/WebCore/inspector/front-end/HelpScreen.js b/Source/WebCore/inspector/front-end/HelpScreen.js new file mode 100644 index 0000000..a1bbf1e --- /dev/null +++ b/Source/WebCore/inspector/front-end/HelpScreen.js @@ -0,0 +1,88 @@ +/* + * 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").innerText = title; + + closeButton.innerText = "\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; + } +} |