webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 148 insertions, 0 deletions

diff --git a/Source/WebInspectorUI/UserInterface/Models/RenderingFrameTimelineRecord.js b/Source/WebInspectorUI/UserInterface/Models/RenderingFrameTimelineRecord.js
new file mode 100644
index 000000000..d6b502fe0
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Models/RenderingFrameTimelineRecord.js
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2015 Apple 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:
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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.RenderingFrameTimelineRecord = class RenderingFrameTimelineRecord extends WebInspector.TimelineRecord
+{
+    constructor(startTime, endTime)
+    {
+        super(WebInspector.TimelineRecord.Type.RenderingFrame, startTime, endTime);
+
+        this._durationByTaskType = new Map;
+        this._frameIndex = -1;
+    }
+
+    // Static
+
+    static resetFrameIndex()
+    {
+        WebInspector.RenderingFrameTimelineRecord._nextFrameIndex = 0;
+    }
+
+    static displayNameForTaskType(taskType)
+    {
+        switch (taskType) {
+        case WebInspector.RenderingFrameTimelineRecord.TaskType.Script:
+            return WebInspector.UIString("Script");
+        case WebInspector.RenderingFrameTimelineRecord.TaskType.Layout:
+            return WebInspector.UIString("Layout");
+        case WebInspector.RenderingFrameTimelineRecord.TaskType.Paint:
+            return WebInspector.UIString("Paint");
+        case WebInspector.RenderingFrameTimelineRecord.TaskType.Other:
+            return WebInspector.UIString("Other");
+        }
+    }
+
+    static taskTypeForTimelineRecord(record)
+    {
+        switch (record.type) {
+        case WebInspector.TimelineRecord.Type.Script:
+            return WebInspector.RenderingFrameTimelineRecord.TaskType.Script;
+        case WebInspector.TimelineRecord.Type.Layout:
+            if (record.eventType === WebInspector.LayoutTimelineRecord.EventType.Paint || record.eventType === WebInspector.LayoutTimelineRecord.EventType.Composite)
+                return WebInspector.RenderingFrameTimelineRecord.TaskType.Paint;
+            return WebInspector.RenderingFrameTimelineRecord.TaskType.Layout;
+        default:
+            console.error("Unsupported timeline record type: " + record.type);
+            return null;
+        }
+    }
+
+    // Public
+
+    get frameIndex()
+    {
+        return this._frameIndex;
+    }
+
+    get frameNumber()
+    {
+        return this._frameIndex + 1;
+    }
+
+    setupFrameIndex()
+    {
+        console.assert(this._frameIndex === -1, "Frame index should only be set once.");
+        if (this._frameIndex >= 0)
+            return;
+        this._frameIndex = WebInspector.RenderingFrameTimelineRecord._nextFrameIndex++;
+    }
+
+    durationForTask(taskType)
+    {
+        if (this._durationByTaskType.has(taskType))
+            return this._durationByTaskType.get(taskType);
+
+        var duration;
+        if (taskType === WebInspector.RenderingFrameTimelineRecord.TaskType.Other)
+            duration = this._calculateDurationRemainder();
+        else {
+            duration = this.children.reduce(function(previousValue, currentValue) {
+                if (taskType !== WebInspector.RenderingFrameTimelineRecord.taskTypeForTimelineRecord(currentValue))
+                    return previousValue;
+
+                var currentDuration = currentValue.duration;
+                if (currentValue.usesActiveStartTime)
+                    currentDuration -= currentValue.inactiveDuration;
+                return previousValue + currentDuration;
+            }, 0);
+
+            if (taskType === WebInspector.RenderingFrameTimelineRecord.TaskType.Script) {
+                // Layout events synchronously triggered from JavaScript must be subtracted from the total
+                // script time, to prevent the time from being counted twice.
+                duration -= this.children.reduce(function(previousValue, currentValue) {
+                    if (currentValue.type === WebInspector.TimelineRecord.Type.Layout && (currentValue.sourceCodeLocation || currentValue.callFrames))
+                        return previousValue + currentValue.duration;
+                    return previousValue;
+                }, 0);
+            }
+        }
+
+        this._durationByTaskType.set(taskType, duration);
+        return duration;
+    }
+
+    // Private
+
+    _calculateDurationRemainder()
+    {
+        return Object.keys(WebInspector.RenderingFrameTimelineRecord.TaskType).reduce((previousValue, key) => {
+            let taskType = WebInspector.RenderingFrameTimelineRecord.TaskType[key];
+            if (taskType === WebInspector.RenderingFrameTimelineRecord.TaskType.Other)
+                return previousValue;
+            return previousValue - this.durationForTask(taskType);
+        }, this.duration);
+    }
+};
+
+WebInspector.RenderingFrameTimelineRecord.TaskType = {
+    Script: "rendering-frame-timeline-record-script",
+    Layout: "rendering-frame-timeline-record-layout",
+    Paint: "rendering-frame-timeline-record-paint",
+    Other: "rendering-frame-timeline-record-other"
+};
+
+WebInspector.RenderingFrameTimelineRecord.TypeIdentifier = "rendering-frame-timeline-record";
+
+WebInspector.RenderingFrameTimelineRecord._nextFrameIndex = 0;