DevTools: encapsulate presentation model in timeline view.

Source/devtools/front_end/TimelinePresentationModel.js

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel 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.
@@ skipping 15 matching lines @@
  * 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
  * @extends {WebInspector.Object}
  * @param {!WebInspector.TimelineModel} model
+ * @param {!WebInspector.TimelineModeViewDelegate} delegate
  */
-WebInspector.TimelinePresentationModel = function(model)
+WebInspector.TimelinePresentationModel = function(model, delegate)
 {
     this._model = model;
+    this._delegate = delegate;
     this._filters = [];
     /**
      * @type {!Map.<!WebInspector.TimelineModel.Record, !WebInspector.TimelinePresentationModel.Record>}
      */
     this._recordToPresentationRecord = new Map();
     this.reset();
 }
 
-WebInspector.TimelinePresentationModel._hiddenRecords = { };
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.MarkDOMContent] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.MarkLoad] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.MarkFirstPaint] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.GPUTask] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.ScheduleStyleRecalculation] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.InvalidateLayout] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.RequestMainThreadFrame] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.ActivateLayerTree] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.DrawFrame] = 1;
-WebInspector.TimelinePresentationModel._hiddenRecords[WebInspector.TimelineModel.RecordType.BeginFrame] = 1;
-
 WebInspector.TimelinePresentationModel._coalescingRecords = { };
 WebInspector.TimelinePresentationModel._coalescingRecords[WebInspector.TimelineModel.RecordType.Layout] = 1;
 WebInspector.TimelinePresentationModel._coalescingRecords[WebInspector.TimelineModel.RecordType.Paint] = 1;
 WebInspector.TimelinePresentationModel._coalescingRecords[WebInspector.TimelineModel.RecordType.Rasterize] = 1;
 WebInspector.TimelinePresentationModel._coalescingRecords[WebInspector.TimelineModel.RecordType.DecodeImage] = 1;
 WebInspector.TimelinePresentationModel._coalescingRecords[WebInspector.TimelineModel.RecordType.ResizeImage] = 1;
 
 WebInspector.TimelinePresentationModel.prototype = {
     /**
      * @param {?WebInspector.TimelineModel.Record} record
      * @return {?WebInspector.TimelinePresentationModel.Record}
      */
     toPresentationRecord: function(record)
     {
         return record ? this._recordToPresentationRecord.get(record) || null : null;
     },
 
     /**
-     * @param {!WebInspector.TimelinePresentationModel.Filter} filter
-     */
-    addFilter: function(filter)
-    {
-        this._filters.push(filter);
-    },
-
-    /**
-     * @param {?WebInspector.TimelinePresentationModel.Filter} filter
-     */
-    setSearchFilter: function(filter)
-    {
-        if (!filter) {
-            var allRecords = this._recordToPresentationRecord.values();
-            for (var i = 0; i < allRecords.length; ++i)
-                delete allRecords[i].clicked;
-        }
-        this._searchFilter = filter;
-    },
-
-    /**
      * @return {!WebInspector.TimelinePresentationModel.Record}
      */
     rootRecord: function()
     {
         return this._rootRecord;
     },
 
     reset: function()
     {
         this._recordToPresentationRecord.clear();
         var rootPayload = { type: WebInspector.TimelineModel.RecordType.Root };
         var rootRecord = new WebInspector.TimelineModel.Record(this._model, /** @type {!TimelineAgent.TimelineEvent} */ (rootPayload), null);
         this._rootRecord = new WebInspector.TimelinePresentationModel.Record(rootRecord, null);
-        this._eventDividerRecords = [];
-        this._minimumRecordTime = -1;
         /** @type {!Object.<string, !WebInspector.TimelinePresentationModel.Record>} */
         this._coalescingBuckets = {};
-        this._mergingBuffer = new WebInspector.TimelineMergingRecordBuffer();
-
-        /** @type {!Array.<!WebInspector.TimelineModel.Record>} */
-        this._mainThreadTasks =  ([]);
-        /** @type {!Array.<!WebInspector.TimelineModel.Record>} */
-        this._gpuThreadTasks = ([]);
     },
 
     /**
-     * @return {number}
-     */
-    minimumRecordTime: function()
-    {
-        return this._minimumRecordTime;
-    },
-
-    /**
-     * @return {number}
-     */
-    maximumRecordTime: function()
-    {
-        return this._maximumRecordTime;
-    },
-
-    /**
-     * @return {!Array.<!WebInspector.TimelineModel.Record>}
-     */
-    mainThreadTasks: function()
-    {
-        return this._mainThreadTasks;
-    },
-
-    /**
-     * @return {!Array.<!WebInspector.TimelineModel.Record>}
-     */
-    gpuThreadTasks: function()
-    {
-        return this._gpuThreadTasks;
-    },
-
-    /**
      * @param {!WebInspector.TimelineModel.Record} record
      */
     addRecord: function(record)
     {
-        if (record.type === WebInspector.TimelineModel.RecordType.Program)
-            this._mainThreadTasks.push(record);
-        if (record.type === WebInspector.TimelineModel.RecordType.GPUTask)
-            this._gpuThreadTasks.push(record);
-
-        var startTime = record.startTime;
-        var endTime = record.endTime;
-        if (this._minimumRecordTime === -1 || startTime < this._minimumRecordTime)
-            this._minimumRecordTime = startTime;
-        if (this._maximumRecordTime === -1 || endTime > this._maximumRecordTime)
-            this._maximumRecordTime = endTime;
-
         var records;
         if (record.type === WebInspector.TimelineModel.RecordType.Program)
             records = record.children;
         else
             records = [record];
 
         for (var i = 0; i < records.length; ++i)
             this._innerAddRecord(this._rootRecord, records[i]);
     },
 
     /**
      * @param {!WebInspector.TimelinePresentationModel.Record} parentRecord
      * @param {!WebInspector.TimelineModel.Record} record
      */
     _innerAddRecord: function(parentRecord, record)
     {
-        if (WebInspector.TimelineUIUtils.isEventDivider(record))
-            this._eventDividerRecords.push(record);
-
-        if (record.type in WebInspector.TimelinePresentationModel._hiddenRecords)
-            return null;
-
-        const recordTypes = WebInspector.TimelineModel.RecordType;
-
-        var origin = parentRecord;
         var coalescingBucket;
 
         // On main thread, only coalesce if the last event is of same type.
         if (parentRecord === this._rootRecord)
             coalescingBucket = record.thread ? record.type : "mainThread";
         var coalescedRecord = this._findCoalescedParent(record, parentRecord, coalescingBucket);
         if (coalescedRecord)
             parentRecord = coalescedRecord;
 
         var formattedRecord = new WebInspector.TimelinePresentationModel.Record(record, parentRecord);
@@ skipping 85 matching lines @@
         var parentRecord = presentationRecord._presentationParent.record();
         WebInspector.TimelineUIUtils.aggregateTimeByCategory(parentRecord.aggregatedStats, record.aggregatedStats);
         if (parentRecord.startTime > record.startTime)
             parentRecord.startTime = record.startTime;
         if (parentRecord.endTime < record.endTime) {
             parentRecord.endTime = record.endTime;
             parentRecord.lastChildEndTime = parentRecord.endTime;
         }
     },
 
+    /**
+     * @param {?RegExp} textFilter
+     */
+    setTextFilter: function(textFilter)
+    {
+        if (this._textFilter === textFilter)
+            return;
+        this._textFilter = textFilter;
+        for (var i = 0; this._filteredRecords && i < this._filteredRecords.length; ++i)
+            delete this._filteredRecords[i]._expandedOrCollapsedWhileFiltered;
+    },
+
     invalidateFilteredRecords: function()
     {
         delete this._filteredRecords;
     },
 
     /**
      * @return {!Array.<!WebInspector.TimelinePresentationModel.Record>}
      */
     filteredRecords: function()
     {
         if (this._filteredRecords)
             return this._filteredRecords;
 
-        var recordsInWindow = [];
-        var stack = [{children: this._rootRecord._presentationChildren, index: 0, parentIsCollapsed: false, parentRecord: {}}];
-        var revealedDepth = 0;
+         var recordsInWindow = [];
+
+         var stack = [{children: this._rootRecord._presentationChildren, index: 0, parentIsCollapsed: false, parentRecord: {}}];
+         var revealedDepth = 0;
 
         function revealRecordsInStack() {
             for (var depth = revealedDepth + 1; depth < stack.length; ++depth) {
                 if (stack[depth - 1].parentIsCollapsed) {
                     stack[depth].parentRecord._presentationParent._expandable = true;
                     return;
                 }
                 stack[depth - 1].parentRecord._collapsed = false;
                 recordsInWindow.push(stack[depth].parentRecord);
                 stack[depth].windowLengthBeforeChildrenTraversal = recordsInWindow.length;
                 stack[depth].parentIsRevealed = true;
                 revealedDepth = depth;
             }
         }
 
         while (stack.length) {
             var entry = stack[stack.length - 1];
             var records = entry.children;
             if (records && entry.index < records.length) {
                 var record = records[entry.index];
                 ++entry.index;
 
-                if (this.isVisible(record.record())) {
+                if (this._model.isVisible(record.record())) {
                     record._presentationParent._expandable = true;
-                    if (this._searchFilter)
+                    if (this._textFilter)
                         revealRecordsInStack();
                     if (!entry.parentIsCollapsed) {
                         recordsInWindow.push(record);
                         revealedDepth = stack.length;
                         entry.parentRecord._collapsed = false;
                     }
                 }
 
                 record._expandable = false;
 
                 stack.push({children: record._presentationChildren,
                             index: 0,
-                            parentIsCollapsed: (entry.parentIsCollapsed || (record._collapsed && (!this._searchFilter || record.clicked))),
+                            parentIsCollapsed: entry.parentIsCollapsed || (record._collapsed && (!this._textFilter || record._expandedOrCollapsedWhileFiltered)),
                             parentRecord: record,
                             windowLengthBeforeChildrenTraversal: recordsInWindow.length});
             } else {
                 stack.pop();
                 revealedDepth = Math.min(revealedDepth, stack.length - 1);
                 entry.parentRecord._visibleChildrenCount = recordsInWindow.length - entry.windowLengthBeforeChildrenTraversal;
             }
         }
 
         this._filteredRecords = recordsInWindow;
         return recordsInWindow;
     },
 
-    /**
-     * @return {!Array.<!WebInspector.TimelineModel.Record>}
-     */
-    eventDividerRecords: function()
-    {
-        return this._eventDividerRecords;
-    },
-
-    /**
-     * @param {!WebInspector.TimelineModel.Record} record
-     * @return {boolean}
-     */
-    isVisible: function(record)
-    {
-        for (var i = 0; i < this._filters.length; ++i) {
-            if (!this._filters[i].accept(record))
-                return false;
-        }
-        return !this._searchFilter || this._searchFilter.accept(record);
-    },
-
     __proto__: WebInspector.Object.prototype
 }
 
 /**
  * @constructor
  * @param {!WebInspector.TimelineModel.Record} record
  * @param {?WebInspector.TimelinePresentationModel.Record} parentRecord
  */
 WebInspector.TimelinePresentationModel.Record = function(record, parentRecord)
 {
@@ skipping 20 matching lines @@
 WebInspector.TimelinePresentationModel.Record.prototype = {
     /**
      * @return {!WebInspector.TimelineModel.Record}
      */
     record: function()
     {
         return this._record;
     },
 
     /**
-     * @return {boolean}
-     */
-    isRoot: function()
-    {
-        return this.type === WebInspector.TimelineModel.RecordType.Root;
-    },
-
-    /**
      * @return {!Array.<!WebInspector.TimelinePresentationModel.Record>}
      */
     presentationChildren: function()
     {
         return this._presentationChildren;
     },
 
     /**
      * @return {boolean}
      */
@@ skipping 17 matching lines @@
     {
         return this._collapsed;
     },
 
     /**
      * @param {boolean} collapsed
      */
     setCollapsed: function(collapsed)
     {
         this._collapsed = collapsed;
+        this._expandedOrCollapsedWhileFiltered = true;
     },
 
     /**
      * @return {?WebInspector.TimelinePresentationModel.Record}
      */
     presentationParent: function()
     {
         return this._presentationParent || null;
     },
 
@@ skipping 54 matching lines @@
     },
 
     /**
      * @param {!WebInspector.TimelineRecordGraphRow} graphRow
      */
     setGraphRow: function(graphRow)
     {
         this._graphRow = graphRow;
     }
 }
-
-/**
- * @interface
- */
-WebInspector.TimelinePresentationModel.Filter = function()
-{
-}
-
-WebInspector.TimelinePresentationModel.Filter.prototype = {
-    /**
-     * @param {!WebInspector.TimelineModel.Record} record
-     * @return {boolean}
-     */
-    accept: function(record) { return false; }
-}