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805 lines
23 KiB
JavaScript
805 lines
23 KiB
JavaScript
/*
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* Software License Agreement (BSD License)
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*
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* Copyright (c) 2007, Parakey Inc.
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* All rights reserved.
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*
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* Redistribution and use of this software in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the
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* following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the
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* following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* * Neither the name of Parakey Inc. nor the names of its
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* contributors may be used to endorse or promote products
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* derived from this software without specific prior
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* written permission of Parakey Inc.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Creator:
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* Joe Hewitt
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* Contributors
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* John J. Barton (IBM Almaden)
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* Jan Odvarko (Mozilla Corp.)
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* Max Stepanov (Aptana Inc.)
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* Rob Campbell (Mozilla Corp.)
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* Hans Hillen (Paciello Group, Mozilla)
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* Curtis Bartley (Mozilla Corp.)
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* Mike Collins (IBM Almaden)
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* Kevin Decker
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* Mike Ratcliffe (Comartis AG)
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* Hernan RodrÃguez Colmeiro
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* Austin Andrews
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* Christoph Dorn
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* Steven Roussey (AppCenter Inc, Network54)
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*/
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///////////////////////////////////////////////////////////////////////////
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//// InsideOutBox
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/**
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* InsideOutBoxView is a simple interface definition for views implementing
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* InsideOutBox controls. All implementors must define these methods.
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* Implemented in InspectorUI.
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*/
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/*
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InsideOutBoxView = {
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//
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* Retrieves the parent object for a given child object.
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* @param aChild
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* The child node to retrieve the parent object for.
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* @returns a DOM node | null
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//
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getParentObject: function(aChild) {},
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//
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* Retrieves a given child node.
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*
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* If both index and previousSibling are passed, the implementation
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* may assume that previousSibling will be the return for getChildObject
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* with index-1.
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* @param aParent
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* The parent object of the child object to retrieve.
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* @param aIndex
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* The index of the child object to retrieve from aParent.
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* @param aPreviousSibling
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* The previous sibling of the child object to retrieve.
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* Supercedes aIndex.
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* @returns a DOM object | null
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//
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getChildObject: function(aParent, aIndex, aPreviousSibling) {},
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//
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* Renders the HTML representation of the object. Should return an HTML
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* object which will be displayed to the user.
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* @param aObject
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* The object to create the box object for.
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* @param aIsRoot
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* Is the object the root object. May not be used in all
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* implementations.
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* @returns an object box | null
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//
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createObjectBox: function(aObject, aIsRoot) {},
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//
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* Convenience wrappers for classList API.
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* @param aObject
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* DOM node to query/set.
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* @param aClassName
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* String containing the class name to query/set.
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//
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hasClass: function(aObject, aClassName) {},
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addClass: function(aObject, aClassName) {},
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removeClass: function(aObject, aClassName) {}
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};
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*/
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/**
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* Creates a tree based on objects provided by a separate "view" object.
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*
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* Construction uses an "inside-out" algorithm, meaning that the view's job is
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* first to tell us the ancestry of each object, and secondarily its
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* descendants.
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*
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* Constructor
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* @param aView
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* The view requiring the InsideOutBox.
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* @param aBox
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* The box object containing the InsideOutBox. Required to add/remove
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* children during box manipulation (toggling opened or closed).
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*/
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var EXPORTED_SYMBOLS = ["InsideOutBox"];
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const Cu = Components.utils;
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Cu.import("resource:///modules/devtools/LayoutHelpers.jsm");
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function InsideOutBox(aView, aBox)
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{
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this.view = aView;
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this.box = aBox;
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this.rootObject = null;
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this.rootObjectBox = null;
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this.selectedObjectBox = null;
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this.highlightedObjectBox = null;
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this.scrollIntoView = false;
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};
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InsideOutBox.prototype =
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{
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/**
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* Highlight the given object node in the tree.
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* @param aObject
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* the object to highlight.
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* @returns objectBox
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*/
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highlight: function IOBox_highlight(aObject)
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{
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let objectBox = this.createObjectBox(aObject);
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this.highlightObjectBox(objectBox);
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return objectBox;
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},
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/**
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* Open the given object node in the tree.
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* @param aObject
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* The object node to open.
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* @returns objectBox
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*/
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openObject: function IOBox_openObject(aObject)
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{
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let object = aObject;
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let firstChild = this.view.getChildObject(object, 0);
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if (firstChild)
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object = firstChild;
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return this.openToObject(object);
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},
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/**
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* Open the tree up to the given object node.
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* @param aObject
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* The object in the tree to open to.
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* @returns objectBox
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*/
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openToObject: function IOBox_openToObject(aObject)
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{
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let objectBox = this.createObjectBox(aObject);
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this.openObjectBox(objectBox);
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return objectBox;
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},
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/**
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* Select the given object node in the tree.
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* @param aObject
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* The object node to select.
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* @param makeBoxVisible
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* Boolean. Open the object box in the tree?
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* @param forceOpen
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* Force the object box open by expanding all elements in the tree?
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* @param scrollIntoView
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* Scroll the objectBox into view?
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* @returns nsIDOMNode|null
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* A DOM node that represents the "object box", the element that
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* holds/displays the given aObject representation in the tree. If
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* the object cannot be selected, if it is a stale object, null is
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* returned.
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*/
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select:
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function IOBox_select(aObject, makeBoxVisible, forceOpen, scrollIntoView)
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{
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let objectBox = this.createObjectBox(aObject);
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if (!objectBox) {
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return null;
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}
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this.selectObjectBox(objectBox, forceOpen);
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if (makeBoxVisible) {
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this.openObjectBox(objectBox);
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}
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if (scrollIntoView) {
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// We want to center the label of the element, not the whole tag
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// (which includes all of its children, and is vertically huge).
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LayoutHelpers.scrollIntoViewIfNeeded(objectBox.firstElementChild);
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}
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return objectBox;
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},
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/**
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* Expands/contracts the given object, depending on its state.
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* @param aObject
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* The tree node to expand/contract.
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*/
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toggleObject: function IOBox_toggleObject(aObject)
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{
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let box = this.createObjectBox(aObject);
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if (!(this.view.hasClass(box, "open")))
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this.expandObjectBox(box);
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else
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this.contractObjectBox(box);
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},
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/**
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* Expand the given object in the tree.
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* @param aObject
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* The tree node to expand.
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*/
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expandObject: function IOBox_expandObject(aObject)
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{
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let objectBox = this.createObjectBox(aObject);
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if (objectBox)
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this.expandObjectBox(objectBox);
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},
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/**
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* Contract the given object in the tree.
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* @param aObject
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* The tree node to contract.
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*/
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contractObject: function IOBox_contractObject(aObject)
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{
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let objectBox = this.createObjectBox(aObject);
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if (objectBox)
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this.contractObjectBox(objectBox);
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},
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/**
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* General method for iterating over an object's ancestors and performing
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* some function.
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* @param aObject
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* The object whose ancestors we wish to iterate over.
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* @param aCallback
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* The function to call with the object as argument.
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*/
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iterateObjectAncestors: function IOBox_iterateObjectAncesors(aObject, aCallback)
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{
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let object = aObject;
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if (!(aCallback && typeof(aCallback) == "function")) {
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this.view._log("Illegal argument in IOBox.iterateObjectAncestors");
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return;
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}
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while ((object = this.getParentObjectBox(object)))
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aCallback(object);
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},
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/**
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* Highlight the given objectBox in the tree.
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* @param aObjectBox
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* The objectBox to highlight.
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*/
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highlightObjectBox: function IOBox_highlightObjectBox(aObjectBox)
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{
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let self = this;
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if (!aObjectBox)
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return;
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if (this.highlightedObjectBox) {
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this.view.removeClass(this.highlightedObjectBox, "highlighted");
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this.iterateObjectAncestors(this.highlightedObjectBox, function (box) {
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self.view.removeClass(box, "highlightOpen");
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});
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}
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this.highlightedObjectBox = aObjectBox;
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this.view.addClass(aObjectBox, "highlighted");
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this.iterateObjectAncestors(this.highlightedObjectBox, function (box) {
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self.view.addClass(box, "highlightOpen");
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});
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aObjectBox.scrollIntoView(true);
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},
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/**
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* Select the given objectBox in the tree, forcing it to be open if necessary.
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* @param aObjectBox
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* The objectBox to select.
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* @param forceOpen
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* Force the box (subtree) to be open?
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*/
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selectObjectBox: function IOBox_selectObjectBox(aObjectBox, forceOpen)
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{
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let isSelected = this.selectedObjectBox &&
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aObjectBox == this.selectedObjectBox;
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// aObjectBox is already selected, return
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if (isSelected)
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return;
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if (this.selectedObjectBox)
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this.view.removeClass(this.selectedObjectBox, "selected");
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this.selectedObjectBox = aObjectBox;
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if (aObjectBox) {
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this.view.addClass(aObjectBox, "selected");
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// Force it open the first time it is selected
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if (forceOpen)
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this.expandObjectBox(aObjectBox, true);
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}
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},
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/**
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* Returns the next object box in the tree for navigation purposes.
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*/
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nextObjectBox: function IOBox_nextObjectBox(aBoxObject)
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{
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let candidate;
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let boxObject = aBoxObject || this.selectedObjectBox;
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if (!boxObject)
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return this.rootObjectBox;
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// If expanded, return the first child.
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let isOpen = this.view.hasClass(boxObject, "open");
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let childObjectBox = this.getChildObjectBox(boxObject);
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if (isOpen && childObjectBox && childObjectBox.firstChild) {
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candidate = childObjectBox.firstChild;
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} else {
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// Otherwise we get the next available sibling.
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while (boxObject) {
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if (boxObject.nextSibling) {
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boxObject = boxObject.nextSibling;
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break;
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}
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boxObject = this.getParentObjectBox(boxObject);
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}
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candidate = boxObject;
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}
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// If the node is not an element (comments or text nodes), we
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// jump to the next line.
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if (candidate &&
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candidate.repObject.nodeType != candidate.repObject.ELEMENT_NODE) {
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return this.nextObjectBox(candidate);
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}
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return candidate;
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},
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/**
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* Returns the next object in the tree for navigation purposes.
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*/
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nextObject: function IOBox_nextObject()
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{
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let next = this.nextObjectBox();
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return next ? next.repObject : null;
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},
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/**
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* Returns the object that is below the selection.
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*
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* @param aDistance Number of lines to jump.
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*/
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farNextObject: function IOBox_farPreviousProject(aDistance)
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{
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let boxObject = this.selectedObjectBox;
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while (aDistance-- > 0) {
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let newBoxObject = this.nextObjectBox(boxObject);
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if (!newBoxObject) {
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break;
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}
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boxObject = newBoxObject;
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}
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return boxObject ? boxObject.repObject : null;
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},
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/**
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* Returns the last visible child box of an object box.
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*/
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lastVisible: function IOBox_lastVisibleChild(aNode)
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{
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if (!this.view.hasClass(aNode, "open"))
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return aNode;
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let childBox = this.getChildObjectBox(aNode);
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if (!childBox || !childBox.lastChild)
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return aNode;
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return this.lastVisible(childBox.lastChild);
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},
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/**
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* Returns the previous object box in the tree for navigation purposes.
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*/
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previousObjectBox: function IOBox_previousObjectBox(aBoxObject)
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{
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let boxObject = aBoxObject || this.selectedObjectBox;
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if (!boxObject)
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return this.rootObjectBox;
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let candidate;
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let sibling = boxObject.previousSibling;
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if (sibling) {
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candidate = this.lastVisible(sibling);
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} else {
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candidate = this.getParentObjectBox(boxObject);
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}
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// If the node is not an element (comments or text nodes), we
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// jump to the previous line.
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if (candidate &&
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candidate.repObject.nodeType != candidate.repObject.ELEMENT_NODE) {
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return this.previousObjectBox(candidate);
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}
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return candidate;
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},
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/**
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* Returns the previous object in the tree for navigation purposes.
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*/
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previousObject: function IOBox_previousObject()
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{
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let boxObject = this.previousObjectBox();
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return boxObject ? boxObject.repObject : null;
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},
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/**
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* Returns the object that is above the selection.
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*
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* @param aDistance Number of lines to jump.
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*/
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farPreviousObject: function IOBox_farPreviousProject(aDistance)
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{
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let boxObject = this.selectedObjectBox;
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while (aDistance-- > 0) {
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let newBoxObject = this.previousObjectBox(boxObject);
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if (!newBoxObject) {
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break;
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}
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boxObject = newBoxObject;
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if (boxObject === this.rootObjectBox)
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break;
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}
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return boxObject ? boxObject.repObject : null;
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},
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/**
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* Open the ancestors of the given object box.
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* @param aObjectBox
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* The object box to open.
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*/
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openObjectBox: function IOBox_openObjectBox(aObjectBox)
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{
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if (!aObjectBox)
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return;
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let self = this;
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this.iterateObjectAncestors(aObjectBox, function (box) {
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self.view.addClass(box, "open");
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let labelBox = box.querySelector(".nodeLabelBox");
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if (labelBox)
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labelBox.setAttribute("aria-expanded", "true");
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});
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},
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/**
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* Expand the given object box.
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* @param aObjectBox
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* The object box to expand.
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*/
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expandObjectBox: function IOBox_expandObjectBox(aObjectBox)
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{
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let nodeChildBox = this.getChildObjectBox(aObjectBox);
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// no children means nothing to expand, return
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if (!nodeChildBox)
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return;
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if (!aObjectBox.populated) {
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let firstChild = this.view.getChildObject(aObjectBox.repObject, 0);
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this.populateChildBox(firstChild, nodeChildBox);
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}
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let labelBox = aObjectBox.querySelector(".nodeLabelBox");
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if (labelBox)
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labelBox.setAttribute("aria-expanded", "true");
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this.view.addClass(aObjectBox, "open");
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},
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/**
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* Contract the given object box.
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* @param aObjectBox
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* The object box to contract.
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*/
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contractObjectBox: function IOBox_contractObjectBox(aObjectBox)
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{
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this.view.removeClass(aObjectBox, "open");
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let nodeLabel = aObjectBox.querySelector(".nodeLabel");
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let labelBox = nodeLabel.querySelector(".nodeLabelBox");
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if (labelBox)
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labelBox.setAttribute("aria-expanded", "false");
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},
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/**
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* Toggle the given object box, forcing open if requested.
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* @param aObjectBox
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* The object box to toggle.
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* @param forceOpen
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* Force the objectbox open?
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*/
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toggleObjectBox: function IOBox_toggleObjectBox(aObjectBox, forceOpen)
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{
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let isOpen = this.view.hasClass(aObjectBox, "open");
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if (!forceOpen && isOpen)
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this.contractObjectBox(aObjectBox);
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else if (!isOpen)
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this.expandObjectBox(aObjectBox);
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},
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/**
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* Creates all of the boxes for an object, its ancestors, and siblings.
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* @param aObject
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* The tree node to create the object boxes for.
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* @returns anObjectBox or null
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*/
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createObjectBox: function IOBox_createObjectBox(aObject)
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{
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if (!aObject)
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return null;
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this.rootObject = this.getRootNode(aObject) || aObject;
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// Get or create all of the boxes for the target and its ancestors
|
|
let objectBox = this.createObjectBoxes(aObject, this.rootObject);
|
|
|
|
if (!objectBox)
|
|
return null;
|
|
|
|
if (aObject == this.rootObject)
|
|
return objectBox;
|
|
|
|
return this.populateChildBox(aObject, objectBox.parentNode);
|
|
},
|
|
|
|
/**
|
|
* Creates all of the boxes for an object, its ancestors, and siblings up to
|
|
* a root.
|
|
* @param aObject
|
|
* The tree's object node to create the object boxes for.
|
|
* @param aRootObject
|
|
* The root object at which to stop building object boxes.
|
|
* @returns an object box or null
|
|
*/
|
|
createObjectBoxes: function IOBox_createObjectBoxes(aObject, aRootObject)
|
|
{
|
|
if (!aObject)
|
|
return null;
|
|
|
|
if (aObject == aRootObject) {
|
|
if (!this.rootObjectBox || this.rootObjectBox.repObject != aRootObject) {
|
|
if (this.rootObjectBox) {
|
|
try {
|
|
this.box.removeChild(this.rootObjectBox);
|
|
} catch (exc) {
|
|
this.view._log("this.box.removeChild(this.rootObjectBox) FAILS " +
|
|
this.box + " must not contain " + this.rootObjectBox);
|
|
}
|
|
}
|
|
|
|
this.highlightedObjectBox = null;
|
|
this.selectedObjectBox = null;
|
|
this.rootObjectBox = this.view.createObjectBox(aObject, true);
|
|
this.box.appendChild(this.rootObjectBox);
|
|
}
|
|
return this.rootObjectBox;
|
|
}
|
|
|
|
let parentNode = this.view.getParentObject(aObject);
|
|
let parentObjectBox = this.createObjectBoxes(parentNode, aRootObject);
|
|
|
|
if (!parentObjectBox)
|
|
return null;
|
|
|
|
let parentChildBox = this.getChildObjectBox(parentObjectBox);
|
|
|
|
if (!parentChildBox)
|
|
return null;
|
|
|
|
let childObjectBox = this.findChildObjectBox(parentChildBox, aObject);
|
|
|
|
return childObjectBox ? childObjectBox
|
|
: this.populateChildBox(aObject, parentChildBox);
|
|
},
|
|
|
|
/**
|
|
* Locate the object box for a given object node.
|
|
* @param aObject
|
|
* The given object node in the tree.
|
|
* @returns an object box or null.
|
|
*/
|
|
findObjectBox: function IOBox_findObjectBox(aObject)
|
|
{
|
|
if (!aObject)
|
|
return null;
|
|
|
|
if (aObject == this.rootObject)
|
|
return this.rootObjectBox;
|
|
|
|
let parentNode = this.view.getParentObject(aObject);
|
|
let parentObjectBox = this.findObjectBox(parentNode);
|
|
if (!parentObjectBox)
|
|
return null;
|
|
|
|
let parentChildBox = this.getChildObjectBox(parentObjectBox);
|
|
if (!parentChildBox)
|
|
return null;
|
|
|
|
return this.findChildObjectBox(parentChildBox, aObject);
|
|
},
|
|
|
|
getAncestorByClass: function IOBox_getAncestorByClass(node, className)
|
|
{
|
|
for (let parent = node; parent; parent = parent.parentNode) {
|
|
if (this.view.hasClass(parent, className))
|
|
return parent;
|
|
}
|
|
|
|
return null;
|
|
},
|
|
|
|
/**
|
|
* We want all children of the parent of repObject.
|
|
*/
|
|
populateChildBox: function IOBox_populateChildBox(repObject, nodeChildBox)
|
|
{
|
|
if (!repObject)
|
|
return null;
|
|
|
|
let parentObjectBox = this.getAncestorByClass(nodeChildBox, "nodeBox");
|
|
|
|
if (parentObjectBox.populated)
|
|
return this.findChildObjectBox(nodeChildBox, repObject);
|
|
|
|
let lastSiblingBox = this.getChildObjectBox(nodeChildBox);
|
|
let siblingBox = nodeChildBox.firstChild;
|
|
let targetBox = null;
|
|
let view = this.view;
|
|
let targetSibling = null;
|
|
let parentNode = view.getParentObject(repObject);
|
|
|
|
for (let i = 0; 1; ++i) {
|
|
targetSibling = view.getChildObject(parentNode, i, targetSibling);
|
|
if (!targetSibling)
|
|
break;
|
|
|
|
// Check if we need to start appending, or continue to insert before
|
|
if (lastSiblingBox && lastSiblingBox.repObject == targetSibling)
|
|
lastSiblingBox = null;
|
|
|
|
if (!siblingBox || siblingBox.repObject != targetSibling) {
|
|
let newBox = view.createObjectBox(targetSibling);
|
|
if (newBox) {
|
|
if (lastSiblingBox)
|
|
nodeChildBox.insertBefore(newBox, lastSiblingBox);
|
|
else
|
|
nodeChildBox.appendChild(newBox);
|
|
}
|
|
|
|
siblingBox = newBox;
|
|
}
|
|
|
|
if (targetSibling == repObject)
|
|
targetBox = siblingBox;
|
|
|
|
if (siblingBox && siblingBox.repObject == targetSibling)
|
|
siblingBox = siblingBox.nextSibling;
|
|
}
|
|
|
|
if (targetBox)
|
|
parentObjectBox.populated = true;
|
|
|
|
return targetBox;
|
|
},
|
|
|
|
/**
|
|
* Get the parent object box of a given object box.
|
|
* @params aObjectBox
|
|
* The object box of the parent.
|
|
* @returns an object box or null
|
|
*/
|
|
getParentObjectBox: function IOBox_getParentObjectBox(aObjectBox)
|
|
{
|
|
let parent = aObjectBox.parentNode ? aObjectBox.parentNode.parentNode : null;
|
|
return parent && parent.repObject ? parent : null;
|
|
},
|
|
|
|
/**
|
|
* Get the child object box of a given object box.
|
|
* @param aObjectBox
|
|
* The object box whose child you want.
|
|
* @returns an object box or null
|
|
*/
|
|
getChildObjectBox: function IOBox_getChildObjectBox(aObjectBox)
|
|
{
|
|
return aObjectBox.querySelector(".nodeChildBox");
|
|
},
|
|
|
|
/**
|
|
* Find the child object box for a given repObject within the subtree
|
|
* rooted at aParentNodeBox.
|
|
* @param aParentNodeBox
|
|
* root of the subtree in which to search for repObject.
|
|
* @param aRepObject
|
|
* The object you wish to locate in the subtree.
|
|
* @returns an object box or null
|
|
*/
|
|
findChildObjectBox: function IOBox_findChildObjectBox(aParentNodeBox, aRepObject)
|
|
{
|
|
let childBox = aParentNodeBox.firstChild;
|
|
while (childBox) {
|
|
if (childBox.repObject == aRepObject)
|
|
return childBox;
|
|
childBox = childBox.nextSibling;
|
|
}
|
|
return null; // not found
|
|
},
|
|
|
|
/**
|
|
* Determines if the given node is an ancestor of the current root.
|
|
* @param aNode
|
|
* The node to look for within the tree.
|
|
* @returns boolean
|
|
*/
|
|
isInExistingRoot: function IOBox_isInExistingRoot(aNode)
|
|
{
|
|
let parentNode = aNode;
|
|
while (parentNode && parentNode != this.rootObject) {
|
|
parentNode = this.view.getParentObject(parentNode);
|
|
}
|
|
return parentNode == this.rootObject;
|
|
},
|
|
|
|
/**
|
|
* Get the root node of a given node.
|
|
* @param aNode
|
|
* The node whose root you wish to retrieve.
|
|
* @returns a root node or null
|
|
*/
|
|
getRootNode: function IOBox_getRootNode(aNode)
|
|
{
|
|
let node = aNode;
|
|
let tmpNode;
|
|
while ((tmpNode = this.view.getParentObject(node)))
|
|
node = tmpNode;
|
|
|
|
return node;
|
|
},
|
|
|
|
/**
|
|
* Clean up our mess.
|
|
*/
|
|
destroy: function IOBox_destroy()
|
|
{
|
|
delete this.view;
|
|
delete this.box;
|
|
delete this.rootObject;
|
|
delete this.rootObjectBox;
|
|
delete this.selectedObjectBox;
|
|
delete this.highlightedObjectBox;
|
|
delete this.scrollIntoView;
|
|
}
|
|
};
|