1 files changed, 160 insertions, 0 deletions
diff --git a/Source/WebInspectorUI/UserInterface/Views/NetworkTimelineOverviewGraph.js b/Source/WebInspectorUI/UserInterface/Views/NetworkTimelineOverviewGraph.js
new file mode 100644
index 000000000..ee73b6230
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Views/NetworkTimelineOverviewGraph.js
@@ -0,0 +1,160 @@
+
+/*
+ * Copyright (C) 2014, 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.NetworkTimelineOverviewGraph = class NetworkTimelineOverviewGraph extends WebInspector.TimelineOverviewGraph
+{
+    constructor(timeline, timelineOverview)
+    {
+        super(timelineOverview);
+
+        this.element.classList.add("network");
+
+        timeline.addEventListener(WebInspector.Timeline.Event.RecordAdded, this._networkTimelineRecordAdded, this);
+        timeline.addEventListener(WebInspector.Timeline.Event.TimesUpdated, this.needsLayout, this);
+
+        this.reset();
+    }
+
+    // Public
+
+    reset()
+    {
+        super.reset();
+
+        this._nextDumpRow = 0;
+        this._timelineRecordGridRows = [];
+
+        for (var i = 0; i < WebInspector.NetworkTimelineOverviewGraph.MaximumRowCount; ++i)
+            this._timelineRecordGridRows.push([]);
+
+        this.element.removeChildren();
+
+        for (var rowRecords of this._timelineRecordGridRows) {
+            rowRecords.__element = document.createElement("div");
+            rowRecords.__element.classList.add("graph-row");
+            this.element.appendChild(rowRecords.__element);
+
+            rowRecords.__recordBars = [];
+        }
+    }
+
+    // Protected
+
+    layout()
+    {
+        if (!this.visible)
+            return;
+
+        let secondsPerPixel = this.timelineOverview.secondsPerPixel;
+        let recordBarIndex = 0;
+
+        function createBar(rowElement, rowRecordBars, records, renderMode)
+        {
+            let timelineRecordBar = rowRecordBars[recordBarIndex];
+            if (!timelineRecordBar)
+                timelineRecordBar = rowRecordBars[recordBarIndex] = new WebInspector.TimelineRecordBar(records, renderMode);
+            else {
+                timelineRecordBar.renderMode = renderMode;
+                timelineRecordBar.records = records;
+            }
+            timelineRecordBar.refresh(this);
+            if (!timelineRecordBar.element.parentNode)
+                rowElement.appendChild(timelineRecordBar.element);
+            ++recordBarIndex;
+        }
+
+        for (let rowRecords of this._timelineRecordGridRows) {
+            let rowElement = rowRecords.__element;
+            let rowRecordBars = rowRecords.__recordBars;
+
+            recordBarIndex = 0;
+
+            WebInspector.TimelineRecordBar.createCombinedBars(rowRecords, secondsPerPixel, this, createBar.bind(this, rowElement, rowRecordBars));
+
+            // Remove the remaining unused TimelineRecordBars.
+            for (; recordBarIndex < rowRecordBars.length; ++recordBarIndex) {
+                rowRecordBars[recordBarIndex].records = null;
+                rowRecordBars[recordBarIndex].element.remove();
+            }
+        }
+    }
+
+    // Private
+
+    _networkTimelineRecordAdded(event)
+    {
+        var resourceTimelineRecord = event.data.record;
+        console.assert(resourceTimelineRecord instanceof WebInspector.ResourceTimelineRecord);
+
+        function compareByStartTime(a, b)
+        {
+            return a.startTime - b.startTime;
+        }
+
+        let minimumBarPaddingTime = WebInspector.TimelineOverview.MinimumDurationPerPixel * (WebInspector.TimelineRecordBar.MinimumWidthPixels + WebInspector.TimelineRecordBar.MinimumMarginPixels);
+
+        // Try to find a row that has room and does not overlap a previous record.
+        var foundRowForRecord = false;
+        for (var i = 0; i < this._timelineRecordGridRows.length; ++i) {
+            var rowRecords = this._timelineRecordGridRows[i];
+            var lastRecord = rowRecords.lastValue;
+
+            if (!lastRecord || lastRecord.endTime + minimumBarPaddingTime <= resourceTimelineRecord.startTime) {
+                insertObjectIntoSortedArray(resourceTimelineRecord, rowRecords, compareByStartTime);
+                this._nextDumpRow = i + 1;
+                foundRowForRecord = true;
+                break;
+            }
+        }
+
+        if (!foundRowForRecord) {
+            // Try to find a row that does not overlap a previous record's active time, but it can overlap the inactive time.
+            for (var i = 0; i < this._timelineRecordGridRows.length; ++i) {
+                var rowRecords = this._timelineRecordGridRows[i];
+                var lastRecord = rowRecords.lastValue;
+                console.assert(lastRecord);
+
+                if (lastRecord.activeStartTime + minimumBarPaddingTime <= resourceTimelineRecord.startTime) {
+                    insertObjectIntoSortedArray(resourceTimelineRecord, rowRecords, compareByStartTime);
+                    this._nextDumpRow = i + 1;
+                    foundRowForRecord = true;
+                    break;
+                }
+            }
+        }
+
+        // We didn't find a empty spot, so dump into the designated dump row.
+        if (!foundRowForRecord) {
+            if (this._nextDumpRow >= WebInspector.NetworkTimelineOverviewGraph.MaximumRowCount)
+                this._nextDumpRow = 0;
+            insertObjectIntoSortedArray(resourceTimelineRecord, this._timelineRecordGridRows[this._nextDumpRow++], compareByStartTime);
+        }
+
+        this.needsLayout();
+    }
+};
+
+WebInspector.NetworkTimelineOverviewGraph.MaximumRowCount = 6;