blob: e09892c0b8168ea8243392b70c9adf5ecfb1643b [file] [log] [blame]
/*
* Copyright (C) 2013 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.
*/
/**
* @constructor
* @param {WebInspector.LayerTreeModel} model
* @param {TreeOutline} treeOutline
* @extends {WebInspector.Object}
*/
WebInspector.LayerTree = function(model, treeOutline)
{
WebInspector.Object.call(this);
this._model = model;
this._treeOutline = treeOutline;
this._treeOutline.childrenListElement.addEventListener("mousemove", this._onMouseMove.bind(this), false);
this._treeOutline.childrenListElement.addEventListener("mouseout", this._onMouseMove.bind(this), false);
this._treeOutline.childrenListElement.addEventListener("contextmenu", this._onContextMenu.bind(this), true);
this._model.addEventListener(WebInspector.LayerTreeModel.Events.LayerTreeChanged, this._update.bind(this));
this._lastHoveredNode = null;
}
/**
* @enum {string}
*/
WebInspector.LayerTree.Events = {
LayerHovered: "LayerHovered",
LayerSelected: "LayerSelected"
}
WebInspector.LayerTree.prototype = {
/**
* @param {WebInspector.Layer} layer
*/
selectLayer: function(layer)
{
this.hoverLayer(null);
var node = layer && this._treeOutline.getCachedTreeElement(layer);
if (node)
node.revealAndSelect(true);
else if (this._treeOutline.selectedTreeElement)
this._treeOutline.selectedTreeElement.deselect();
},
/**
* @param {WebInspector.Layer} layer
*/
hoverLayer: function(layer)
{
var node = layer && this._treeOutline.getCachedTreeElement(layer);
if (node === this._lastHoveredNode)
return;
if (this._lastHoveredNode)
this._lastHoveredNode.setHovered(false);
if (node)
node.setHovered(true);
this._lastHoveredNode = node;
},
_update: function()
{
var seenLayers = {};
/**
* @param {WebInspector.Layer} layer
*/
function updateLayer(layer)
{
var id = layer.id();
if (seenLayers[id])
console.assert(false, "Duplicate layer id: " + id);
seenLayers[id] = true;
var node = this._treeOutline.getCachedTreeElement(layer);
var parent = layer === this._model.contentRoot() ? this._treeOutline : this._treeOutline.getCachedTreeElement(layer.parent());
if (!parent)
console.assert(false, "Parent is not in the tree");
if (!node) {
node = new WebInspector.LayerTreeElement(this, layer);
parent.appendChild(node);
} else {
var oldParentId = node.parent.representedObject && node.parent.representedObject.id();
if (oldParentId !== layer.parentId()) {
(node.parent || this._treeOutline).removeChild(node);
parent.appendChild(node);
}
node._update();
}
}
if (this._model.contentRoot())
this._model.forEachLayer(updateLayer.bind(this), this._model.contentRoot());
// Cleanup layers that don't exist anymore from tree.
for (var node = /** @type {TreeElement|TreeOutline} */(this._treeOutline.children[0]); node && !node.root;) {
if (seenLayers[node.representedObject.id()]) {
node = node.traverseNextTreeElement(false);
} else {
var nextNode = node.nextSibling || node.parent;
node.parent.removeChild(node);
if (node === this._lastHoveredNode)
this._lastHoveredNode = null;
node = nextNode;
}
}
},
/**
* @param {Event} event
*/
_onMouseMove: function(event)
{
var node = this._treeOutline.treeElementFromPoint(event.pageX, event.pageY);
if (node === this._lastHoveredNode)
return;
this.dispatchEventToListeners(WebInspector.LayerTree.Events.LayerHovered, node && node.representedObject);
},
/**
* @param {WebInspector.LayerTreeElement} node
*/
_selectedNodeChanged: function(node)
{
var layer = /** @type {WebInspector.Layer} */ (node.representedObject);
this.dispatchEventToListeners(WebInspector.LayerTree.Events.LayerSelected, layer);
},
/**
* @param {Event} event
*/
_onContextMenu: function(event)
{
var node = this._treeOutline.treeElementFromPoint(event.pageX, event.pageY);
if (!node || !node.representedObject)
return;
var layer = /** @type {WebInspector.Layer} */ (node.representedObject);
if (!layer)
return;
var nodeId = layer.nodeId();
if (!nodeId)
return;
var domNode = WebInspector.domAgent.nodeForId(nodeId);
if (!domNode)
return;
var contextMenu = new WebInspector.ContextMenu(event);
contextMenu.appendApplicableItems(domNode);
contextMenu.show();
},
__proto__: WebInspector.Object.prototype
}
/**
* @constructor
* @param {WebInspector.LayerTree} tree
* @param {WebInspector.Layer} layer
* @extends {TreeElement}
*/
WebInspector.LayerTreeElement = function(tree, layer)
{
TreeElement.call(this, "", layer);
this._layerTree = tree;
this._update();
}
WebInspector.LayerTreeElement.prototype = {
onattach: function()
{
var selection = document.createElement("div");
selection.className = "selection";
this.listItemElement.insertBefore(selection, this.listItemElement.firstChild);
},
_update: function()
{
var layer = /** @type {WebInspector.Layer} */ (this.representedObject);
var nodeId = layer.nodeIdForSelfOrAncestor();
var node = nodeId && WebInspector.domAgent.nodeForId(nodeId);
var title = document.createDocumentFragment();
title.createChild("div", "selection");
title.appendChild(document.createTextNode(node ? node.appropriateSelectorFor(false) : "#" + layer.id()));
var details = title.createChild("span", "dimmed");
details.textContent = WebInspector.UIString(" (%d × %d)", layer.width(), layer.height());
this.title = title;
},
onselect: function()
{
this._layerTree._selectedNodeChanged(this);
},
/**
* @param {boolean} hovered
*/
setHovered: function(hovered)
{
this.listItemElement.enableStyleClass("hovered", hovered);
},
__proto__: TreeElement.prototype
}