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- /*
- * Copyright (C) 2007, 2008 Apple Inc. All rights reserved.
- * Copyright (C) 2008 Matt Lilek <webkit@mattlilek.com>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. 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.
- * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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.ElementsTreeOutline = function() {
- this.element = document.createElement("ol");
- this.element.addEventListener("mousedown", this._onmousedown.bind(this), false);
- this.element.addEventListener("dblclick", this._ondblclick.bind(this), false);
- this.element.addEventListener("mousemove", this._onmousemove.bind(this), false);
- this.element.addEventListener("mouseout", this._onmouseout.bind(this), false);
-
- TreeOutline.call(this, this.element);
-
- this.includeRootDOMNode = true;
- this.selectEnabled = false;
- this.rootDOMNode = null;
- this.focusedDOMNode = null;
- }
-
- WebInspector.ElementsTreeOutline.prototype = {
- get rootDOMNode()
- {
- return this._rootDOMNode;
- },
-
- set rootDOMNode(x)
- {
- if (objectsAreSame(this._rootDOMNode, x))
- return;
-
- this._rootDOMNode = x;
-
- this.update();
- },
-
- get focusedDOMNode()
- {
- return this._focusedDOMNode;
- },
-
- set focusedDOMNode(x)
- {
- if (objectsAreSame(this._focusedDOMNode, x)) {
- this.revealAndSelectNode(x);
- return;
- }
-
- this._focusedDOMNode = x;
-
- this.revealAndSelectNode(x);
-
- // The revealAndSelectNode() method might find a different element if there is inlined text,
- // and the select() call would change the focusedDOMNode and reenter this setter. So to
- // avoid calling focusedNodeChanged() twice, first check if _focusedDOMNode is the same
- // node as the one passed in.
- if (objectsAreSame(this._focusedDOMNode, x)) {
- this.focusedNodeChanged();
-
- if (x && !this.suppressSelectHighlight) {
- InspectorController.highlightDOMNode(x);
-
- if ("_restorePreviousHighlightNodeTimeout" in this)
- clearTimeout(this._restorePreviousHighlightNodeTimeout);
-
- function restoreHighlightToHoveredNode()
- {
- var hoveredNode = WebInspector.hoveredDOMNode;
- if (hoveredNode)
- InspectorController.highlightDOMNode(hoveredNode);
- else
- InspectorController.hideDOMNodeHighlight();
- }
-
- this._restorePreviousHighlightNodeTimeout = setTimeout(restoreHighlightToHoveredNode, 2000);
- }
- }
- },
-
- update: function()
- {
- this.removeChildren();
-
- if (!this.rootDOMNode)
- return;
-
- var treeElement;
- if (this.includeRootDOMNode) {
- treeElement = new WebInspector.ElementsTreeElement(this.rootDOMNode);
- treeElement.selectable = this.selectEnabled;
- this.appendChild(treeElement);
- } else {
- // FIXME: this could use findTreeElement to reuse a tree element if it already exists
- var node = (Preferences.ignoreWhitespace ? firstChildSkippingWhitespace.call(this.rootDOMNode) : this.rootDOMNode.firstChild);
- while (node) {
- treeElement = new WebInspector.ElementsTreeElement(node);
- treeElement.selectable = this.selectEnabled;
- this.appendChild(treeElement);
- node = Preferences.ignoreWhitespace ? nextSiblingSkippingWhitespace.call(node) : node.nextSibling;
- }
- }
-
- this.updateSelection();
- },
-
- updateSelection: function()
- {
- if (!this.selectedTreeElement)
- return;
- var element = this.treeOutline.selectedTreeElement;
- element.updateSelection();
- },
-
- focusedNodeChanged: function(forceUpdate) {},
-
- findTreeElement: function(node, isAncestor, getParent, equal)
- {
- if (typeof isAncestor === "undefined")
- isAncestor = isAncestorIncludingParentFrames;
- if (typeof getParent === "undefined")
- getParent = parentNodeOrFrameElement;
- if (typeof equal === "undefined")
- equal = objectsAreSame;
-
- var treeElement = TreeOutline.prototype.findTreeElement.call(this, node, isAncestor, getParent, equal);
- if (!treeElement && node.nodeType === Node.TEXT_NODE) {
- // The text node might have been inlined if it was short, so try to find the parent element.
- treeElement = TreeOutline.prototype.findTreeElement.call(this, node.parentNode, isAncestor, getParent, equal);
- }
-
- return treeElement;
- },
-
- revealAndSelectNode: function(node)
- {
- if (!node)
- return;
-
- var treeElement = this.findTreeElement(node);
- if (!treeElement)
- return;
-
- treeElement.reveal();
- treeElement.select();
- },
-
- _treeElementFromEvent: function(event)
- {
- var root = this.element;
-
- // We choose this X coordinate based on the knowledge that our list
- // items extend nearly to the right edge of the outer <ol>.
- var x = root.totalOffsetLeft + root.offsetWidth - 20;
-
- var y = event.pageY;
-
- // Our list items have 1-pixel cracks between them vertically. We avoid
- // the cracks by checking slightly above and slightly below the mouse
- // and seeing if we hit the same element each time.
- var elementUnderMouse = this.treeElementFromPoint(x, y);
- var elementAboveMouse = this.treeElementFromPoint(x, y - 2);
- var element;
- if (elementUnderMouse === elementAboveMouse)
- element = elementUnderMouse;
- else
- element = this.treeElementFromPoint(x, y + 2);
-
- return element;
- },
-
- _ondblclick: function(event)
- {
- var element = this._treeElementFromEvent(event);
-
- if (!element || !element.ondblclick)
- return;
-
- element.ondblclick(element, event);
- },
-
- _onmousedown: function(event)
- {
- var element = this._treeElementFromEvent(event);
-
- if (!element || element.isEventWithinDisclosureTriangle(event))
- return;
-
- element.select();
- },
-
- _onmousemove: function(event)
- {
- if (this._previousHoveredElement) {
- this._previousHoveredElement.hovered = false;
- delete this._previousHoveredElement;
- }
-
- var element = this._treeElementFromEvent(event);
- if (element && !element.elementCloseTag) {
- element.hovered = true;
- this._previousHoveredElement = element;
- }
-
- WebInspector.hoveredDOMNode = (element && !element.elementCloseTag ? element.representedObject : null);
- },
-
- _onmouseout: function(event)
- {
- var nodeUnderMouse = document.elementFromPoint(event.pageX, event.pageY);
- if (nodeUnderMouse.isDescendant(this.element))
- return;
-
- if (this._previousHoveredElement) {
- this._previousHoveredElement.hovered = false;
- delete this._previousHoveredElement;
- }
-
- WebInspector.hoveredDOMNode = null;
- }
- }
-
- WebInspector.ElementsTreeOutline.prototype.__proto__ = TreeOutline.prototype;
-
- WebInspector.ElementsTreeElement = function(node)
- {
- var hasChildren = node.contentDocument || (Preferences.ignoreWhitespace ? (firstChildSkippingWhitespace.call(node) ? true : false) : node.hasChildNodes());
- var titleInfo = nodeTitleInfo.call(node, hasChildren, WebInspector.linkifyURL);
-
- if (titleInfo.hasChildren)
- this.whitespaceIgnored = Preferences.ignoreWhitespace;
-
- // The title will be updated in onattach.
- TreeElement.call(this, "", node, titleInfo.hasChildren);
- }
-
- WebInspector.ElementsTreeElement.prototype = {
- get highlighted()
- {
- return this._highlighted;
- },
-
- set highlighted(x)
- {
- if (this._highlighted === x)
- return;
-
- this._highlighted = x;
-
- if (this.listItemElement) {
- if (x)
- this.listItemElement.addStyleClass("highlighted");
- else
- this.listItemElement.removeStyleClass("highlighted");
- }
- },
-
- get hovered()
- {
- return this._hovered;
- },
-
- set hovered(x)
- {
- if (this._hovered === x)
- return;
-
- this._hovered = x;
-
- if (this.listItemElement) {
- if (x) {
- this.updateSelection();
- this.listItemElement.addStyleClass("hovered");
- } else
- this.listItemElement.removeStyleClass("hovered");
- }
- },
-
- updateSelection: function()
- {
- var listItemElement = this.listItemElement;
- if (!listItemElement)
- return;
-
- if (document.body.offsetWidth <= 0) {
- // The stylesheet hasn't loaded yet or the window is closed,
- // so we can't calculate what is need. Return early.
- return;
- }
-
- if (!this.selectionElement) {
- this.selectionElement = document.createElement("div");
- this.selectionElement.className = "selection selected";
- listItemElement.insertBefore(this.selectionElement, listItemElement.firstChild);
- }
-
- this.selectionElement.style.height = listItemElement.offsetHeight + "px";
- },
-
- onattach: function()
- {
- this.listItemElement.addEventListener("mousedown", this.onmousedown.bind(this), false);
-
- if (this._highlighted)
- this.listItemElement.addStyleClass("highlighted");
-
- if (this._hovered) {
- this.updateSelection();
- this.listItemElement.addStyleClass("hovered");
- }
-
- this._updateTitle();
-
- this._preventFollowingLinksOnDoubleClick();
- },
-
- _preventFollowingLinksOnDoubleClick: function()
- {
- var links = this.listItemElement.querySelectorAll("li > .webkit-html-tag > .webkit-html-attribute > .webkit-html-external-link, li > .webkit-html-tag > .webkit-html-attribute > .webkit-html-resource-link");
- if (!links)
- return;
-
- for (var i = 0; i < links.length; ++i)
- links[i].preventFollowOnDoubleClick = true;
- },
-
- onpopulate: function()
- {
- if (this.children.length || this.whitespaceIgnored !== Preferences.ignoreWhitespace)
- return;
-
- this.whitespaceIgnored = Preferences.ignoreWhitespace;
-
- this.updateChildren();
- },
-
- updateChildren: function(fullRefresh)
- {
- if (fullRefresh) {
- var selectedTreeElement = this.treeOutline.selectedTreeElement;
- if (selectedTreeElement && selectedTreeElement.hasAncestor(this))
- this.select();
- this.removeChildren();
- }
-
- var treeElement = this;
- var treeChildIndex = 0;
-
- function updateChildrenOfNode(node)
- {
- var treeOutline = treeElement.treeOutline;
- var child = (Preferences.ignoreWhitespace ? firstChildSkippingWhitespace.call(node) : node.firstChild);
- while (child) {
- var currentTreeElement = treeElement.children[treeChildIndex];
- if (!currentTreeElement || !objectsAreSame(currentTreeElement.representedObject, child)) {
- // Find any existing element that is later in the children list.
- var existingTreeElement = null;
- for (var i = (treeChildIndex + 1); i < treeElement.children.length; ++i) {
- if (objectsAreSame(treeElement.children[i].representedObject, child)) {
- existingTreeElement = treeElement.children[i];
- break;
- }
- }
-
- if (existingTreeElement && existingTreeElement.parent === treeElement) {
- // If an existing element was found and it has the same parent, just move it.
- var wasSelected = existingTreeElement.selected;
- treeElement.removeChild(existingTreeElement);
- treeElement.insertChild(existingTreeElement, treeChildIndex);
- if (wasSelected)
- existingTreeElement.select();
- } else {
- // No existing element found, insert a new element.
- var newElement = new WebInspector.ElementsTreeElement(child);
- newElement.selectable = treeOutline.selectEnabled;
- treeElement.insertChild(newElement, treeChildIndex);
- }
- }
-
- child = Preferences.ignoreWhitespace ? nextSiblingSkippingWhitespace.call(child) : child.nextSibling;
- ++treeChildIndex;
- }
- }
-
- // Remove any tree elements that no longer have this node (or this node's contentDocument) as their parent.
- for (var i = (this.children.length - 1); i >= 0; --i) {
- if ("elementCloseTag" in this.children[i])
- continue;
-
- var currentChild = this.children[i];
- var currentNode = currentChild.representedObject;
- var currentParentNode = currentNode.parentNode;
-
- if (objectsAreSame(currentParentNode, this.representedObject))
- continue;
- if (this.representedObject.contentDocument && objectsAreSame(currentParentNode, this.representedObject.contentDocument))
- continue;
-
- var selectedTreeElement = this.treeOutline.selectedTreeElement;
- if (selectedTreeElement && (selectedTreeElement === currentChild || selectedTreeElement.hasAncestor(currentChild)))
- this.select();
-
- this.removeChildAtIndex(i);
-
- if (this.treeOutline.panel && currentNode.contentDocument)
- this.treeOutline.panel.unregisterMutationEventListeners(currentNode.contentDocument.defaultView);
- }
-
- if (this.representedObject.contentDocument)
- updateChildrenOfNode(this.representedObject.contentDocument);
- updateChildrenOfNode(this.representedObject);
-
- var lastChild = this.children[this.children.length - 1];
- if (this.representedObject.nodeType == Node.ELEMENT_NODE && (!lastChild || !lastChild.elementCloseTag)) {
- var title = "<span class=\"webkit-html-tag close\"></" + this.representedObject.nodeName.toLowerCase().escapeHTML() + "></span>";
- var item = new TreeElement(title, null, false);
- item.selectable = false;
- item.elementCloseTag = true;
- this.appendChild(item);
- }
- },
-
- onexpand: function()
- {
- this.treeOutline.updateSelection();
-
- if (this.treeOutline.panel && this.representedObject.contentDocument)
- this.treeOutline.panel.registerMutationEventListeners(this.representedObject.contentDocument.defaultView);
- },
-
- oncollapse: function()
- {
- this.treeOutline.updateSelection();
- },
-
- onreveal: function()
- {
- if (this.listItemElement)
- this.listItemElement.scrollIntoViewIfNeeded(false);
- },
-
- onselect: function()
- {
- this.treeOutline.focusedDOMNode = this.representedObject;
- this.updateSelection();
- },
-
- onmousedown: function(event)
- {
- if (this._editing)
- return;
-
- // Prevent selecting the nearest word on double click.
- if (event.detail >= 2)
- event.preventDefault();
- },
-
- ondblclick: function(treeElement, event)
- {
- if (this._editing)
- return;
-
- if (this._startEditing(event))
- return;
-
- if (this.treeOutline.panel) {
- this.treeOutline.rootDOMNode = this.representedObject.parentNode;
- this.treeOutline.focusedDOMNode = this.representedObject;
- }
-
- if (this.hasChildren && !this.expanded)
- this.expand();
- },
-
- _startEditing: function(event)
- {
- if (this.treeOutline.focusedDOMNode != this.representedObject)
- return;
-
- if (this.representedObject.nodeType != Node.ELEMENT_NODE && this.representedObject.nodeType != Node.TEXT_NODE)
- return false;
-
- var textNode = event.target.enclosingNodeOrSelfWithClass("webkit-html-text-node");
- if (textNode)
- return this._startEditingTextNode(textNode);
-
- var attribute = event.target.enclosingNodeOrSelfWithClass("webkit-html-attribute");
- if (attribute)
- return this._startEditingAttribute(attribute, event);
-
- return false;
- },
-
- _startEditingAttribute: function(attribute, event)
- {
- if (WebInspector.isBeingEdited(attribute))
- return true;
-
- var attributeNameElement = attribute.getElementsByClassName("webkit-html-attribute-name")[0];
- if (!attributeNameElement)
- return false;
-
- var attributeName = attributeNameElement.innerText;
-
- function removeZeroWidthSpaceRecursive(node)
- {
- if (node.nodeType === Node.TEXT_NODE) {
- node.nodeValue = node.nodeValue.replace(/\u200B/g, "");
- return;
- }
-
- if (node.nodeType !== Node.ELEMENT_NODE)
- return;
-
- for (var child = node.firstChild; child; child = child.nextSibling)
- removeZeroWidthSpaceRecursive(child);
- }
-
- // Remove zero-width spaces that were added by nodeTitleInfo.
- removeZeroWidthSpaceRecursive(attribute);
-
- this._editing = true;
-
- WebInspector.startEditing(attribute, this._attributeEditingCommitted.bind(this), this._editingCancelled.bind(this), attributeName);
- window.getSelection().setBaseAndExtent(event.target, 0, event.target, 1);
-
- return true;
- },
-
- _startEditingTextNode: function(textNode)
- {
- if (WebInspector.isBeingEdited(textNode))
- return true;
-
- this._editing = true;
-
- WebInspector.startEditing(textNode, this._textNodeEditingCommitted.bind(this), this._editingCancelled.bind(this));
- window.getSelection().setBaseAndExtent(textNode, 0, textNode, 1);
-
- return true;
- },
-
- _attributeEditingCommitted: function(element, newText, oldText, attributeName)
- {
- delete this._editing;
-
- var parseContainerElement = document.createElement("span");
- parseContainerElement.innerHTML = "<span " + newText + "></span>";
- var parseElement = parseContainerElement.firstChild;
- if (!parseElement || !parseElement.hasAttributes()) {
- this._editingCancelled(element, context);
- return;
- }
-
- var foundOriginalAttribute = false;
- for (var i = 0; i < parseElement.attributes.length; ++i) {
- var attr = parseElement.attributes[i];
- foundOriginalAttribute = foundOriginalAttribute || attr.name === attributeName;
- InspectorController.inspectedWindow().Element.prototype.setAttribute.call(this.representedObject, attr.name, attr.value);
- }
-
- if (!foundOriginalAttribute)
- InspectorController.inspectedWindow().Element.prototype.removeAttribute.call(this.representedObject, attributeName);
-
- this._updateTitle();
-
- this.treeOutline.focusedNodeChanged(true);
- },
-
- _textNodeEditingCommitted: function(element, newText)
- {
- delete this._editing;
-
- var textNode;
- if (this.representedObject.nodeType == Node.ELEMENT_NODE) {
- // We only show text nodes inline in elements if the element only
- // has a single child, and that child is a text node.
- textNode = this.representedObject.firstChild;
- } else if (this.representedObject.nodeType == Node.TEXT_NODE)
- textNode = this.representedObject;
-
- textNode.nodeValue = newText;
- this._updateTitle();
- },
-
- _editingCancelled: function(element, context)
- {
- delete this._editing;
-
- this._updateTitle();
- },
-
- _updateTitle: function()
- {
- var title = nodeTitleInfo.call(this.representedObject, this.hasChildren, WebInspector.linkifyURL).title;
- this.title = "<span class=\"highlight\">" + title + "</span>";
- delete this.selectionElement;
- this.updateSelection();
- this._preventFollowingLinksOnDoubleClick();
- },
- }
-
- WebInspector.ElementsTreeElement.prototype.__proto__ = TreeElement.prototype;
-