| /* |
| * Copyright (C) 2009 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. |
| */ |
| |
| /** |
| * This class provides a popup that can be shown relative to an anchor element |
| * or at an arbitrary absolute position. |
| * Points are Objects: {x: xValue, y: yValue}. |
| * Rectangles are Objects: {x: xValue, y: yValue, width: widthValue, height: heightValue}. |
| * |
| * element is an optional unparented visible element (style.display != "none" AND style.visibility != "hidden"). |
| * If the element is absent/undefined, it must have been set with the element(x) setter before the show() method invocation. |
| */ |
| WebInspector.Popup = function(element) |
| { |
| if (element) |
| this.element = element; |
| this._keyHandler = this._keyEventHandler.bind(this); |
| this._mouseDownHandler = this._mouseDownEventHandler.bind(this); |
| this._visible = false; |
| this._autoHide = true; |
| } |
| |
| WebInspector.Popup.prototype = { |
| show: function() |
| { |
| if (this.visible) |
| return; |
| var ownerDocument = this._contentElement.ownerDocument; |
| if (!ownerDocument) |
| return; |
| |
| this._glasspaneElement = ownerDocument.createElement("div"); |
| this._glasspaneElement.className = "popup-glasspane"; |
| ownerDocument.body.appendChild(this._glasspaneElement); |
| |
| this._contentElement.positionAt(0, 0); |
| this._contentElement.removeStyleClass("hidden"); |
| ownerDocument.body.appendChild(this._contentElement); |
| |
| this.positionElement(); |
| this._visible = true; |
| ownerDocument.addEventListener("keydown", this._keyHandler, false); |
| ownerDocument.addEventListener("mousedown", this._mouseDownHandler, false); |
| }, |
| |
| hide: function() |
| { |
| if (this.visible) { |
| this._visible = false; |
| this._contentElement.ownerDocument.removeEventListener("keydown", this._keyHandler, false); |
| this._contentElement.ownerDocument.removeEventListener("mousedown", this._mouseDownHandler, false); |
| this._glasspaneElement.parentElement.removeChild(this._glasspaneElement); |
| this._contentElement.parentElement.removeChild(this._contentElement); |
| } |
| }, |
| |
| get visible() |
| { |
| return this._visible; |
| }, |
| |
| set element(x) |
| { |
| this._checkNotVisible(); |
| this._contentElement = x; |
| this._contentElement.addStyleClass("hidden"); |
| }, |
| |
| get element() |
| { |
| return this._contentElement; |
| }, |
| |
| positionElement: function() |
| { |
| var element = this._contentElement; |
| var anchorElement = this._anchorElement; |
| |
| var targetDocument = element.ownerDocument; |
| var targetDocumentBody = targetDocument.body; |
| var targetDocumentElement = targetDocument.documentElement; |
| var clippingBox = {x: 0, y: 0, width: targetDocumentElement.clientWidth, height: targetDocumentElement.clientHeight}; |
| var parentElement = element.offsetParent || element.parentElement; |
| |
| var anchorPosition = {x: anchorElement.totalOffsetLeft, y: anchorElement.totalOffsetTop}; |
| |
| // FIXME(apavlov@chromium.org): Translate anchorPosition to the element.ownerDocument frame when https://bugs.webkit.org/show_bug.cgi?id=28913 is fixed. |
| var anchorBox = {x: anchorPosition.x, y: anchorPosition.y, width: anchorElement.offsetWidth, height: anchorElement.offsetHeight}; |
| var elementBox = {x: element.totalOffsetLeft, y: element.totalOffsetTop, width: element.offsetWidth, height: element.offsetHeight}; |
| var newElementPosition = {x: 0, y: 0}; |
| |
| if (anchorBox.y - elementBox.height >= clippingBox.y) |
| newElementPosition.y = anchorBox.y - elementBox.height; |
| else |
| newElementPosition.y = Math.min(anchorBox.y + anchorBox.height, Math.max(clippingBox.y, clippingBox.y + clippingBox.height - elementBox.height)); |
| |
| if (anchorBox.x + elementBox.height <= clippingBox.x + clippingBox.height) |
| newElementPosition.x = anchorBox.x; |
| else |
| newElementPosition.x = Math.max(clippingBox.x, clippingBox.x + clippingBox.height - elementBox.height); |
| element.positionAt(newElementPosition.x, newElementPosition.y); |
| }, |
| |
| set anchor(x) |
| { |
| this._checkNotVisible(); |
| this._anchorElement = x; |
| }, |
| |
| get anchor() |
| { |
| return this._anchorElement; |
| }, |
| |
| set autoHide(x) |
| { |
| this._autoHide = x; |
| }, |
| |
| _checkNotVisible: function() |
| { |
| if (this.visible) |
| throw new Error("The popup must not be visible."); |
| }, |
| |
| _keyEventHandler: function(event) |
| { |
| // Escape hides the popup. |
| if (event.keyIdentifier == "U+001B") { |
| this.hide(); |
| event.preventDefault(); |
| event.handled = true; |
| } |
| }, |
| |
| _mouseDownEventHandler: function(event) |
| { |
| if (this._autoHide && event.originalTarget === this._glasspaneElement) |
| this.hide(); |
| } |
| } |