strong-arc
Version:
A visual suite for the StrongLoop API Platform
156 lines (138 loc) • 6.94 kB
JavaScript
/*
* Copyright (C) 2013 Google 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.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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.
*/
/**
* @constructor
* @extends {WebInspector.TimelineOverviewBase}
* @param {!WebInspector.TimelineModel} model
* @param {!WebInspector.TimelineUIUtils} uiUtils
*/
WebInspector.TimelineEventOverview = function(model, uiUtils)
{
WebInspector.TimelineOverviewBase.call(this, model);
this._uiUtils = uiUtils;
this.element.id = "timeline-overview-events";
this._fillStyles = {};
var categories = WebInspector.TimelineUIUtils.categories();
for (var category in categories) {
this._fillStyles[category] = WebInspector.TimelineUIUtils.createFillStyleForCategory(this._context, 0, WebInspector.TimelineEventOverview._stripGradientHeight, categories[category]);
categories[category].addEventListener(WebInspector.TimelineCategory.Events.VisibilityChanged, this._onCategoryVisibilityChanged, this);
}
this._disabledCategoryFillStyle = WebInspector.TimelineUIUtils.createFillStyle(this._context, 0, WebInspector.TimelineEventOverview._stripGradientHeight,
"hsl(0, 0%, 85%)", "hsl(0, 0%, 67%)", "hsl(0, 0%, 56%)");
this._disabledCategoryBorderStyle = "rgb(143, 143, 143)";
}
/** @const */
WebInspector.TimelineEventOverview._numberOfStrips = 3;
/** @const */
WebInspector.TimelineEventOverview._stripGradientHeight = 120;
WebInspector.TimelineEventOverview.prototype = {
dispose: function()
{
var categories = WebInspector.TimelineUIUtils.categories();
for (var category in categories)
categories[category].removeEventListener(WebInspector.TimelineCategory.Events.VisibilityChanged, this._onCategoryVisibilityChanged, this);
},
update: function()
{
this.resetCanvas();
var stripHeight = Math.round(this._canvas.height / WebInspector.TimelineEventOverview._numberOfStrips);
var timeOffset = this._model.minimumRecordTime();
var timeSpan = this._model.maximumRecordTime() - timeOffset;
var scale = this._canvas.width / timeSpan;
var lastBarByGroup = [];
this._context.fillStyle = "rgba(0, 0, 0, 0.05)";
for (var i = 1; i < WebInspector.TimelineEventOverview._numberOfStrips; i += 2)
this._context.fillRect(0.5, i * stripHeight + 0.5, this._canvas.width, stripHeight);
/**
* @param {!WebInspector.TimelineModel.Record} record
* @this {WebInspector.TimelineEventOverview}
*/
function appendRecord(record)
{
if (this._uiUtils.isBeginFrame(record))
return;
var recordStart = Math.floor((record.startTime() - timeOffset) * scale);
var recordEnd = Math.ceil((record.endTime() - timeOffset) * scale);
var category = this._uiUtils.categoryForRecord(record);
if (category.overviewStripGroupIndex < 0)
return;
var bar = lastBarByGroup[category.overviewStripGroupIndex];
// This bar may be merged with previous -- so just adjust the previous bar.
if (bar) {
// If record fits entirely into previous bar just absorb it ignoring the category match.
if (recordEnd <= bar.end)
return;
if (bar.category === category && recordStart <= bar.end) {
bar.end = recordEnd;
return;
}
this._renderBar(bar.start, bar.end, stripHeight, bar.category);
}
lastBarByGroup[category.overviewStripGroupIndex] = { start: recordStart, end: recordEnd, category: category };
}
this._model.forAllRecords(appendRecord.bind(this));
for (var i = 0; i < lastBarByGroup.length; ++i) {
if (lastBarByGroup[i])
this._renderBar(lastBarByGroup[i].start, lastBarByGroup[i].end, stripHeight, lastBarByGroup[i].category);
}
},
_onCategoryVisibilityChanged: function()
{
this.update();
},
/**
* @param {number} begin
* @param {number} end
* @param {number} height
* @param {!WebInspector.TimelineCategory} category
*/
_renderBar: function(begin, end, height, category)
{
const stripPadding = 4 * window.devicePixelRatio;
const innerStripHeight = height - 2 * stripPadding;
var x = begin;
var y = category.overviewStripGroupIndex * height + stripPadding + 0.5;
var width = Math.max(end - begin, 1);
this._context.save();
this._context.translate(x, y);
this._context.beginPath();
this._context.scale(1, innerStripHeight / WebInspector.TimelineEventOverview._stripGradientHeight);
this._context.fillStyle = category.hidden ? this._disabledCategoryFillStyle : this._fillStyles[category.name];
this._context.fillRect(0, 0, width, WebInspector.TimelineEventOverview._stripGradientHeight);
this._context.strokeStyle = category.hidden ? this._disabledCategoryBorderStyle : category.borderColor;
this._context.moveTo(0, 0);
this._context.lineTo(width, 0);
this._context.moveTo(0, WebInspector.TimelineEventOverview._stripGradientHeight);
this._context.lineTo(width, WebInspector.TimelineEventOverview._stripGradientHeight);
this._context.stroke();
this._context.restore();
},
__proto__: WebInspector.TimelineOverviewBase.prototype
}