601 lines
22 KiB
JavaScript
601 lines
22 KiB
JavaScript
/*
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* Copyright (C) 2009 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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WebInspector.TimelineOverviewPane = function(categories)
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{
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this._categories = categories;
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this.statusBarFilters = document.createElement("div");
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this.statusBarFilters.className = "status-bar-items";
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for (var categoryName in this._categories) {
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var category = this._categories[categoryName];
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this.statusBarFilters.appendChild(this._createTimelineCategoryStatusBarCheckbox(category, this._onCheckboxClicked.bind(this, category)));
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}
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this._overviewGrid = new WebInspector.TimelineGrid();
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this._overviewGrid.element.id = "timeline-overview-grid";
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this._overviewGrid.itemsGraphsElement.id = "timeline-overview-timelines";
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this._overviewGrid.element.addEventListener("mousedown", this._dragWindow.bind(this), true);
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this._heapGraph = new WebInspector.HeapGraph();
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this._heapGraph.element.id = "timeline-overview-memory";
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this._overviewGrid.element.insertBefore(this._heapGraph.element, this._overviewGrid.itemsGraphsElement);
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this.element = this._overviewGrid.element;
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this._categoryGraphs = {};
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var i = 0;
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for (var category in this._categories) {
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var categoryGraph = new WebInspector.TimelineCategoryGraph(this._categories[category], i++ % 2);
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this._categoryGraphs[category] = categoryGraph;
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this._overviewGrid.itemsGraphsElement.appendChild(categoryGraph.graphElement);
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}
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this._overviewGrid.setScrollAndDividerTop(0, 0);
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this._overviewWindowElement = document.createElement("div");
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this._overviewWindowElement.id = "timeline-overview-window";
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this._overviewGrid.element.appendChild(this._overviewWindowElement);
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this._overviewWindowBordersElement = document.createElement("div");
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this._overviewWindowBordersElement.className = "timeline-overview-window-rulers";
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this._overviewGrid.element.appendChild(this._overviewWindowBordersElement);
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var overviewDividersBackground = document.createElement("div");
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overviewDividersBackground.className = "timeline-overview-dividers-background";
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this._overviewGrid.element.appendChild(overviewDividersBackground);
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this._leftResizeElement = document.createElement("div");
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this._leftResizeElement.className = "timeline-window-resizer";
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this._leftResizeElement.style.left = 0;
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this._overviewGrid.element.appendChild(this._leftResizeElement);
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this._rightResizeElement = document.createElement("div");
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this._rightResizeElement.className = "timeline-window-resizer timeline-window-resizer-right";
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this._rightResizeElement.style.right = 0;
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this._overviewGrid.element.appendChild(this._rightResizeElement);
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this._overviewCalculator = new WebInspector.TimelineOverviewCalculator();
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this.windowLeft = 0.0;
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this.windowRight = 1.0;
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}
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WebInspector.TimelineOverviewPane.minSelectableSize = 12;
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WebInspector.TimelineOverviewPane.prototype = {
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showTimelines: function(event) {
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this._heapGraph.hide();
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this._overviewGrid.itemsGraphsElement.removeStyleClass("hidden");
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},
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showMemoryGraph: function(records) {
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this._heapGraph.show();
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this._heapGraph.update(records);
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this._overviewGrid.itemsGraphsElement.addStyleClass("hidden");
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},
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_onCheckboxClicked: function (category, event) {
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if (event.target.checked)
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category.hidden = false;
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else
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category.hidden = true;
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this._categoryGraphs[category.name].dimmed = !event.target.checked;
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this.dispatchEventToListeners("filter changed");
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},
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_forAllRecords: function(recordsArray, callback)
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{
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if (!recordsArray)
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return;
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for (var i = 0; i < recordsArray.length; ++i) {
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callback(recordsArray[i]);
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this._forAllRecords(recordsArray[i].children, callback);
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}
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},
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update: function(records, showShortEvents)
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{
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this._showShortEvents = showShortEvents;
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// Clear summary bars.
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var timelines = {};
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for (var category in this._categories) {
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timelines[category] = [];
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this._categoryGraphs[category].clearChunks();
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}
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// Create sparse arrays with 101 cells each to fill with chunks for a given category.
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this._overviewCalculator.reset();
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this._forAllRecords(records, this._overviewCalculator.updateBoundaries.bind(this._overviewCalculator));
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function markTimeline(record)
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{
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if (!(this._showShortEvents || record.isLong()))
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return;
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var percentages = this._overviewCalculator.computeBarGraphPercentages(record);
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var end = Math.round(percentages.end);
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var categoryName = record.category.name;
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for (var j = Math.round(percentages.start); j <= end; ++j)
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timelines[categoryName][j] = true;
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}
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this._forAllRecords(records, markTimeline.bind(this));
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// Convert sparse arrays to continuous segments, render graphs for each.
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for (var category in this._categories) {
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var timeline = timelines[category];
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window.timelineSaved = timeline;
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var chunkStart = -1;
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for (var j = 0; j < 101; ++j) {
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if (timeline[j]) {
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if (chunkStart === -1)
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chunkStart = j;
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} else {
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if (chunkStart !== -1) {
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this._categoryGraphs[category].addChunk(chunkStart, j);
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chunkStart = -1;
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}
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}
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}
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if (chunkStart !== -1) {
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this._categoryGraphs[category].addChunk(chunkStart, 100);
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chunkStart = -1;
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}
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}
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this._heapGraph.setSize(this._overviewGrid.element.offsetWidth, 60);
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if (this._heapGraph.visible)
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this._heapGraph.update(records);
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this._overviewGrid.updateDividers(true, this._overviewCalculator);
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},
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updateEventDividers: function(records, dividerConstructor)
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{
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this._overviewGrid.removeEventDividers();
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var dividers = [];
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for (var i = 0; i < records.length; ++i) {
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var record = records[i];
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var positions = this._overviewCalculator.computeBarGraphPercentages(record);
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var dividerPosition = Math.round(positions.start * 10);
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if (dividers[dividerPosition])
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continue;
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var divider = dividerConstructor(record);
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divider.style.left = positions.start + "%";
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dividers[dividerPosition] = divider;
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}
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this._overviewGrid.addEventDividers(dividers);
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},
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updateMainViewWidth: function(width, records)
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{
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this._overviewGrid.element.style.left = width + "px";
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this.statusBarFilters.style.left = Math.max(155, width) + "px";
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},
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reset: function()
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{
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this.windowLeft = 0.0;
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this.windowRight = 1.0;
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this._overviewWindowElement.style.left = "0%";
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this._overviewWindowElement.style.width = "100%";
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this._overviewWindowBordersElement.style.left = "0%";
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this._overviewWindowBordersElement.style.right = "0%";
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this._leftResizeElement.style.left = "0%";
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this._rightResizeElement.style.left = "100%";
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this._overviewCalculator.reset();
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this._overviewGrid.updateDividers(true, this._overviewCalculator);
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},
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_resizeWindow: function(resizeElement, event)
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{
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WebInspector.elementDragStart(resizeElement, this._windowResizeDragging.bind(this, resizeElement), this._endWindowDragging.bind(this), event, "col-resize");
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},
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_windowResizeDragging: function(resizeElement, event)
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{
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if (resizeElement === this._leftResizeElement)
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this._resizeWindowLeft(event.pageX - this._overviewGrid.element.offsetLeft);
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else
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this._resizeWindowRight(event.pageX - this._overviewGrid.element.offsetLeft);
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event.preventDefault();
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},
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_dragWindow: function(event)
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{
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var node = event.target;
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while (node) {
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if (node === this._overviewGrid._dividersLabelBarElement) {
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WebInspector.elementDragStart(this._overviewWindowElement, this._windowDragging.bind(this, event.pageX,
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this._leftResizeElement.offsetLeft, this._rightResizeElement.offsetLeft), this._endWindowDragging.bind(this), event, "ew-resize");
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break;
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} else if (node === this._overviewGrid.element) {
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var position = event.pageX - this._overviewGrid.element.offsetLeft;
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this._overviewWindowSelector = new WebInspector.TimelinePanel.WindowSelector(this._overviewGrid.element, position, event);
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WebInspector.elementDragStart(null, this._windowSelectorDragging.bind(this), this._endWindowSelectorDragging.bind(this), event, "col-resize");
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break;
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} else if (node === this._leftResizeElement || node === this._rightResizeElement) {
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this._resizeWindow(node, event);
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break;
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}
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node = node.parentNode;
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}
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},
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_windowSelectorDragging: function(event)
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{
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this._overviewWindowSelector._updatePosition(event.pageX - this._overviewGrid.element.offsetLeft);
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event.preventDefault();
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},
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_endWindowSelectorDragging: function(event)
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{
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WebInspector.elementDragEnd(event);
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var window = this._overviewWindowSelector._close(event.pageX - this._overviewGrid.element.offsetLeft);
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delete this._overviewWindowSelector;
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if (window.end - window.start < WebInspector.TimelineOverviewPane.minSelectableSize)
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if (this._overviewGrid.itemsGraphsElement.offsetWidth - window.end > WebInspector.TimelineOverviewPane.minSelectableSize)
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window.end = window.start + WebInspector.TimelineOverviewPane.minSelectableSize;
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else
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window.start = window.end - WebInspector.TimelineOverviewPane.minSelectableSize;
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this._setWindowPosition(window.start, window.end);
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},
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_windowDragging: function(startX, windowLeft, windowRight, event)
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{
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var delta = event.pageX - startX;
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var start = windowLeft + delta;
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var end = windowRight + delta;
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var windowSize = windowRight - windowLeft;
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if (start < 0) {
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start = 0;
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end = windowSize;
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}
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if (end > this._overviewGrid.element.clientWidth) {
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end = this._overviewGrid.element.clientWidth;
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start = end - windowSize;
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}
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this._setWindowPosition(start, end);
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event.preventDefault();
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},
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_resizeWindowLeft: function(start)
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{
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// Glue to edge.
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if (start < 10)
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start = 0;
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else if (start > this._rightResizeElement.offsetLeft - 4)
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start = this._rightResizeElement.offsetLeft - 4;
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this._setWindowPosition(start, null);
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},
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_resizeWindowRight: function(end)
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{
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// Glue to edge.
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if (end > this._overviewGrid.element.clientWidth - 10)
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end = this._overviewGrid.element.clientWidth;
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else if (end < this._leftResizeElement.offsetLeft + WebInspector.TimelineOverviewPane.minSelectableSize)
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end = this._leftResizeElement.offsetLeft + WebInspector.TimelineOverviewPane.minSelectableSize;
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this._setWindowPosition(null, end);
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},
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_setWindowPosition: function(start, end)
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{
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var rulerAdjustment = 1 / this._overviewGrid.element.clientWidth;
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if (typeof start === "number") {
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this.windowLeft = start / this._overviewGrid.element.clientWidth;
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this._leftResizeElement.style.left = this.windowLeft * 100 + "%";
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this._overviewWindowElement.style.left = this.windowLeft * 100 + "%";
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this._overviewWindowBordersElement.style.left = (this.windowLeft - rulerAdjustment) * 100 + "%";
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}
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if (typeof end === "number") {
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this.windowRight = end / this._overviewGrid.element.clientWidth;
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this._rightResizeElement.style.left = this.windowRight * 100 + "%";
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}
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this._overviewWindowElement.style.width = (this.windowRight - this.windowLeft) * 100 + "%";
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this._overviewWindowBordersElement.style.right = (1 - this.windowRight + 2 * rulerAdjustment) * 100 + "%";
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this.dispatchEventToListeners("window changed");
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},
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_endWindowDragging: function(event)
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{
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WebInspector.elementDragEnd(event);
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},
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_createTimelineCategoryStatusBarCheckbox: function(category, onCheckboxClicked)
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{
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var labelContainer = document.createElement("div");
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labelContainer.addStyleClass("timeline-category-statusbar-item");
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labelContainer.addStyleClass("timeline-category-" + category.name);
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labelContainer.addStyleClass("status-bar-item");
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var label = document.createElement("label");
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var checkElement = document.createElement("input");
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checkElement.type = "checkbox";
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checkElement.className = "timeline-category-checkbox";
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checkElement.checked = true;
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checkElement.addEventListener("click", onCheckboxClicked);
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label.appendChild(checkElement);
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var typeElement = document.createElement("span");
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typeElement.className = "type";
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typeElement.textContent = category.title;
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label.appendChild(typeElement);
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labelContainer.appendChild(label);
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return labelContainer;
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}
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}
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WebInspector.TimelineOverviewPane.prototype.__proto__ = WebInspector.Object.prototype;
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WebInspector.TimelineOverviewCalculator = function()
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{
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}
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WebInspector.TimelineOverviewCalculator.prototype = {
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computeBarGraphPercentages: function(record)
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{
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var start = (record.startTime - this.minimumBoundary) / this.boundarySpan * 100;
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var end = (record.endTime - this.minimumBoundary) / this.boundarySpan * 100;
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return {start: start, end: end};
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},
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reset: function()
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{
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delete this.minimumBoundary;
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delete this.maximumBoundary;
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},
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updateBoundaries: function(record)
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{
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if (typeof this.minimumBoundary === "undefined" || record.startTime < this.minimumBoundary) {
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this.minimumBoundary = record.startTime;
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return true;
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}
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if (typeof this.maximumBoundary === "undefined" || record.endTime > this.maximumBoundary) {
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this.maximumBoundary = record.endTime;
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return true;
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}
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return false;
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},
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get boundarySpan()
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{
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return this.maximumBoundary - this.minimumBoundary;
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},
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formatValue: function(value)
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{
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return Number.secondsToString(value);
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}
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}
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WebInspector.TimelineCategoryGraph = function(category, isEven)
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{
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this._category = category;
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this._graphElement = document.createElement("div");
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this._graphElement.className = "timeline-graph-side timeline-overview-graph-side" + (isEven ? " even" : "");
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this._barAreaElement = document.createElement("div");
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this._barAreaElement.className = "timeline-graph-bar-area timeline-category-" + category.name;
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this._graphElement.appendChild(this._barAreaElement);
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}
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WebInspector.TimelineCategoryGraph.prototype = {
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get graphElement()
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{
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return this._graphElement;
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},
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addChunk: function(start, end)
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{
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var chunk = document.createElement("div");
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chunk.className = "timeline-graph-bar";
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this._barAreaElement.appendChild(chunk);
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chunk.style.setProperty("left", start + "%");
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chunk.style.setProperty("width", (end - start) + "%");
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},
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clearChunks: function()
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{
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this._barAreaElement.removeChildren();
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},
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set dimmed(dimmed)
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{
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if (dimmed)
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this._barAreaElement.removeStyleClass("timeline-category-" + this._category.name);
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else
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this._barAreaElement.addStyleClass("timeline-category-" + this._category.name);
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}
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}
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WebInspector.TimelinePanel.WindowSelector = function(parent, position, event)
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{
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this._startPosition = position;
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this._width = parent.offsetWidth;
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this._windowSelector = document.createElement("div");
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this._windowSelector.className = "timeline-window-selector";
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this._windowSelector.style.left = this._startPosition + "px";
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this._windowSelector.style.right = this._width - this._startPosition + + "px";
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parent.appendChild(this._windowSelector);
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}
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WebInspector.TimelinePanel.WindowSelector.prototype = {
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_createSelectorElement: function(parent, left, width, height)
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{
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var selectorElement = document.createElement("div");
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selectorElement.className = "timeline-window-selector";
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selectorElement.style.left = left + "px";
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selectorElement.style.width = width + "px";
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selectorElement.style.top = "0px";
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selectorElement.style.height = height + "px";
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parent.appendChild(selectorElement);
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return selectorElement;
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},
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_close: function(position)
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{
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position = Math.max(0, Math.min(position, this._width));
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this._windowSelector.parentNode.removeChild(this._windowSelector);
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return this._startPosition < position ? {start: this._startPosition, end: position} : {start: position, end: this._startPosition};
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},
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_updatePosition: function(position)
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{
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position = Math.max(0, Math.min(position, this._width));
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if (position < this._startPosition) {
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this._windowSelector.style.left = position + "px";
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this._windowSelector.style.right = this._width - this._startPosition + "px";
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} else {
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this._windowSelector.style.left = this._startPosition + "px";
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this._windowSelector.style.right = this._width - position + "px";
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}
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}
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}
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WebInspector.HeapGraph = function() {
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this._canvas = document.createElement("canvas");
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this._maxHeapSizeLabel = document.createElement("div");
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this._maxHeapSizeLabel.addStyleClass("memory-graph-label");
|
|
|
|
this._element = document.createElement("div");
|
|
this._element.addStyleClass("hidden");
|
|
this._element.appendChild(this._canvas);
|
|
this._element.appendChild(this._maxHeapSizeLabel);
|
|
}
|
|
|
|
WebInspector.HeapGraph.prototype = {
|
|
get element() {
|
|
// return this._canvas;
|
|
return this._element;
|
|
},
|
|
|
|
get visible() {
|
|
return !this.element.hasStyleClass("hidden");
|
|
},
|
|
|
|
show: function() {
|
|
this.element.removeStyleClass("hidden");
|
|
},
|
|
|
|
hide: function() {
|
|
this.element.addStyleClass("hidden");
|
|
},
|
|
|
|
setSize: function(w, h) {
|
|
this._canvas.width = w;
|
|
this._canvas.height = h - 5;
|
|
},
|
|
|
|
update: function(records)
|
|
{
|
|
if (!records.length)
|
|
return;
|
|
|
|
var maxTotalHeapSize = 0;
|
|
var minTime;
|
|
var maxTime;
|
|
this._forAllRecords(records, function(r) {
|
|
if (r.totalHeapSize && r.totalHeapSize > maxTotalHeapSize)
|
|
maxTotalHeapSize = r.totalHeapSize;
|
|
|
|
if (typeof minTime === "undefined" || r.startTime < minTime)
|
|
minTime = r.startTime;
|
|
if (typeof maxTime === "undefined" || r.endTime > maxTime)
|
|
maxTime = r.endTime;
|
|
});
|
|
|
|
var width = this._canvas.width;
|
|
var height = this._canvas.height;
|
|
var xFactor = width / (maxTime - minTime);
|
|
var yFactor = height / maxTotalHeapSize;
|
|
|
|
var histogram = new Array(width);
|
|
this._forAllRecords(records, function(r) {
|
|
if (!r.usedHeapSize)
|
|
return;
|
|
var x = Math.round((r.endTime - minTime) * xFactor);
|
|
var y = Math.round(r.usedHeapSize * yFactor);
|
|
histogram[x] = Math.max(histogram[x] || 0, y);
|
|
});
|
|
|
|
var ctx = this._canvas.getContext("2d");
|
|
this._clear(ctx);
|
|
|
|
// +1 so that the border always fit into the canvas area.
|
|
height = height + 1;
|
|
|
|
ctx.beginPath();
|
|
var initialY = 0;
|
|
for (var k = 0; k < histogram.length; k++) {
|
|
if (histogram[k]) {
|
|
initialY = histogram[k];
|
|
break;
|
|
}
|
|
}
|
|
ctx.moveTo(0, height - initialY);
|
|
|
|
for (var x = 0; x < histogram.length; x++) {
|
|
if (!histogram[x])
|
|
continue;
|
|
ctx.lineTo(x, height - histogram[x]);
|
|
}
|
|
|
|
ctx.lineWidth = 0.5;
|
|
ctx.strokeStyle = "rgba(20,0,0,0.8)";
|
|
ctx.stroke();
|
|
|
|
ctx.fillStyle = "rgba(214,225,254, 0.8);";
|
|
ctx.lineTo(width, 60);
|
|
ctx.lineTo(0, 60);
|
|
ctx.lineTo(0, height - initialY);
|
|
ctx.fill();
|
|
ctx.closePath();
|
|
|
|
this._maxHeapSizeLabel.textContent = Number.bytesToString(maxTotalHeapSize);
|
|
},
|
|
|
|
_clear: function(ctx) {
|
|
ctx.fillStyle = "rgba(255,255,255,0.8)";
|
|
ctx.fillRect(0, 0, this._canvas.width, this._canvas.height);
|
|
},
|
|
|
|
_forAllRecords: WebInspector.TimelineOverviewPane.prototype._forAllRecords
|
|
}
|