2 * Copyright (C) 2013 Google Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * @extends {WebInspector.VBox}
35 WebInspector.LayerDetailsView = function()
37 WebInspector.VBox.call(this);
38 this.element.classList.add("layer-details-view");
39 this._emptyView = new WebInspector.EmptyView(WebInspector.UIString("Select a layer to see its details"));
46 WebInspector.LayerDetailsView.Events = {
47 ObjectSelected: "ObjectSelected"
51 * @type {!Object.<string, string>}
53 WebInspector.LayerDetailsView.CompositingReasonDetail = {
54 "transform3D": WebInspector.UIString("Composition due to association with an element with a CSS 3D transform."),
55 "video": WebInspector.UIString("Composition due to association with a <video> element."),
56 "canvas": WebInspector.UIString("Composition due to the element being a <canvas> element."),
57 "plugin": WebInspector.UIString("Composition due to association with a plugin."),
58 "iFrame": WebInspector.UIString("Composition due to association with an <iframe> element."),
59 "backfaceVisibilityHidden": WebInspector.UIString("Composition due to association with an element with a \"backface-visibility: hidden\" style."),
60 "animation": WebInspector.UIString("Composition due to association with an animated element."),
61 "filters": WebInspector.UIString("Composition due to association with an element with CSS filters applied."),
62 "positionFixed": WebInspector.UIString("Composition due to association with an element with a \"position: fixed\" style."),
63 // FIXME: Can we remove this entry now that position: sticky has been removed?
64 "positionSticky": WebInspector.UIString("Composition due to association with an element with a \"position: sticky\" style."),
65 "overflowScrollingTouch": WebInspector.UIString("Composition due to association with an element with a \"overflow-scrolling: touch\" style."),
66 "blending": WebInspector.UIString("Composition due to association with an element that has blend mode other than \"normal\"."),
67 "assumedOverlap": WebInspector.UIString("Composition due to association with an element that may overlap other composited elements."),
68 "overlap": WebInspector.UIString("Composition due to association with an element overlapping other composited elements."),
69 "negativeZIndexChildren": WebInspector.UIString("Composition due to association with an element with descendants that have a negative z-index."),
70 "transformWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with composited descendants."),
71 "opacityWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with opacity applied and composited descendants."),
72 "maskWithCompositedDescendants": WebInspector.UIString("Composition due to association with a masked element and composited descendants."),
73 "reflectionWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with a reflection and composited descendants."),
74 "filterWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with CSS filters applied and composited descendants."),
75 "blendingWithCompositedDescendants": WebInspector.UIString("Composition due to association with an element with CSS blending applied and composited descendants."),
76 "clipsCompositingDescendants": WebInspector.UIString("Composition due to association with an element clipping compositing descendants."),
77 "perspective": WebInspector.UIString("Composition due to association with an element with perspective applied."),
78 "preserve3D": WebInspector.UIString("Composition due to association with an element with a \"transform-style: preserve-3d\" style."),
79 "root": WebInspector.UIString("Root layer."),
80 "layerForClip": WebInspector.UIString("Layer for clip."),
81 "layerForScrollbar": WebInspector.UIString("Layer for scrollbar."),
82 "layerForScrollingContainer": WebInspector.UIString("Layer for scrolling container."),
83 "layerForForeground": WebInspector.UIString("Layer for foreground."),
84 "layerForBackground": WebInspector.UIString("Layer for background."),
85 "layerForMask": WebInspector.UIString("Layer for mask."),
86 "layerForVideoOverlay": WebInspector.UIString("Layer for video overlay.")
89 WebInspector.LayerDetailsView.prototype = {
91 * @param {!WebInspector.Layers3DView.ActiveObject} activeObject
93 setObject: function(activeObject)
95 this._layer = activeObject ? activeObject.layer : null;
96 this._scrollRectIndex = activeObject ? activeObject.scrollRectIndex : null;
103 WebInspector.View.prototype.wasShown.call(this);
108 * @param {number} index
109 * @param {!Event} event
111 _onScrollRectClicked: function(index, event)
113 if (event.which !== 1)
115 this.dispatchEventToListeners(WebInspector.LayerDetailsView.Events.ObjectSelected, {layer: this._layer, scrollRectIndex: index});
119 * @param {!LayerTreeAgent.ScrollRect} scrollRect
120 * @param {number} index
122 _createScrollRectElement: function(scrollRect, index)
125 this._scrollRectsCell.createTextChild(", ");
126 var element = this._scrollRectsCell.createChild("span");
127 element.className = index === this._scrollRectIndex ? "scroll-rect active" : "scroll-rect";
128 element.textContent = WebInspector.LayerTreeModel.ScrollRectType[scrollRect.type].description + " (" + scrollRect.rect.x + ", " + scrollRect.rect.y +
129 ", " + scrollRect.rect.width + ", " + scrollRect.rect.height + ")";
130 element.addEventListener("click", this._onScrollRectClicked.bind(this, index), false);
136 this._tableElement.remove();
137 this._emptyView.show(this.element);
140 this._emptyView.detach();
141 this.element.appendChild(this._tableElement);
142 this._positionCell.textContent = WebInspector.UIString("%d,%d", this._layer.offsetX(), this._layer.offsetY());
143 this._sizeCell.textContent = WebInspector.UIString("%d × %d", this._layer.width(), this._layer.height());
144 this._paintCountCell.textContent = this._layer.paintCount();
145 const bytesPerPixel = 4;
146 this._memoryEstimateCell.textContent = Number.bytesToString(this._layer.invisible() ? 0 : this._layer.width() * this._layer.height() * bytesPerPixel);
147 this._layer.requestCompositingReasons(this._updateCompositingReasons.bind(this));
148 this._scrollRectsCell.removeChildren();
149 this._layer.scrollRects().forEach(this._createScrollRectElement.bind(this));
152 _createTable: function()
154 this._tableElement = this.element.createChild("table");
155 this._tbodyElement = this._tableElement.createChild("tbody");
156 this._positionCell = this._createRow(WebInspector.UIString("Position in parent:"));
157 this._sizeCell = this._createRow(WebInspector.UIString("Size:"));
158 this._compositingReasonsCell = this._createRow(WebInspector.UIString("Compositing Reasons:"));
159 this._memoryEstimateCell = this._createRow(WebInspector.UIString("Memory estimate:"));
160 this._paintCountCell = this._createRow(WebInspector.UIString("Paint count:"));
161 this._scrollRectsCell = this._createRow(WebInspector.UIString("Slow scroll regions:"));
165 * @param {string} title
167 _createRow: function(title)
169 var tr = this._tbodyElement.createChild("tr");
170 var titleCell = tr.createChild("td");
171 titleCell.textContent = title;
172 return tr.createChild("td");
176 * @param {!Array.<string>} compositingReasons
178 _updateCompositingReasons: function(compositingReasons)
180 if (!compositingReasons || !compositingReasons.length) {
181 this._compositingReasonsCell.textContent = "n/a";
184 var fragment = document.createDocumentFragment();
185 for (var i = 0; i < compositingReasons.length; ++i) {
187 fragment.createTextChild(",");
188 var span = document.createElement("span");
189 span.title = WebInspector.LayerDetailsView.CompositingReasonDetail[compositingReasons[i]] || "";
190 span.textContent = compositingReasons[i];
191 fragment.appendChild(span);
193 this._compositingReasonsCell.removeChildren();
194 this._compositingReasonsCell.appendChild(fragment);
197 __proto__: WebInspector.VBox.prototype