<!--
  Copyright 2014 The Fuchsia Authors. All rights reserved.
  Use of this source code is governed by a BSD-style license that can be
  found in the LICENSE file.
-->
<html>
<head>
<title>Blob Size Analysis</title>
<script src="d3/d3.js" charset="utf-8"></script>
<script src="D3BlobTreeMap.js" charset="utf-8"></script>
<script src="data.js" charset="utf-8"></script>
<style>
body {
    margin: 0px;
    padding: 5px;
}
.swatch {
    border: 1px solid rgb(100,100,100);
    -webkit-user-select: none;
    cursor: default;
}
</style>
<script>
var treemap;
var filterChanging = false;
var savedSettings = {};

function init() {
    if (window.metadata !== undefined && window.metadata.subtitle) {
        document.getElementById('subtitle').innerHTML = ': ' + escape(metadata.subtitle);
    }
    initFilterOptions();
    treemap = new D3BlobTreeMap(
        savedSettings.width,
        savedSettings.height,
        savedSettings.maxLevels);
    treemap.init();
}

function getIdealSizes() {
    var width = window.innerWidth - 20;
    var height = window.innerHeight - 70;
    return {'width': width, 'height': height};
}

function showReport(title, data, headers, dataFunction, styleFunction) {
    var div =  d3.select('body').append('div')
        .style('margin', '0')
        .style('padding', '5px')
        .style('position', 'absolute')
        .style('top', '10%')
        .style('left', '10%')
        .style('background-color', 'rgba(255,255,255,0.9)')
        .style('width', '80%')
        .style('height', '80%')
        .style('z-index', '2147483647')
        .style('border', '3px ridge grey')
        .style('box-shadow', '10px 10px 5px rgba(80,80,80,0.7)')
        .style('text-align', 'center')
        .style('border-radius', '10px');
    var titlebar = div.append('div')
        .style('margin', '0')
        .style('padding', '5px')
        .style('position', 'absolute')
        .style('top', '0%')
        .style('left', '0%')
        .style('width', '100%')
        .style('height', '10%')
        .style('font-size', 'x-large');
    titlebar.text(title);
    var controls = div.append('div')
        .style('margin', '0')
        .style('padding', '5px')
        .style('position', 'absolute')
        .style('top', '90%')
        .style('left', '0%')
        .style('width', '100%')
        .style('height', '10%');
    controls.append('input').attr('type', 'button')
        .attr('value', 'Dismiss')
        .on('click', function(){div.remove();});

    var tableDiv = div.append('div')
        .style('overflow', 'auto')
        .style('position', 'absolute')
        .style('top', '10%')
        .style('left', '0%')
        .style('width', '100%')
        .style('height', '80%')
        .style('border-top', '1px solid rgb(230,230,230)')
        .style('border-bottom', '1px solid rgb(230,230,230)');
    var table = tableDiv.append('table')
        .attr('border', '1')
        .attr('cellspacing', '0')
        .attr('cellpadding', '2')
        .style('margin-left', 'auto')
        .style('margin-right', 'auto');
    var header = table.append('tr');
    for (var i = 0; i < headers.length; i++) {
        header.append('th').text(headers[i]);
    }

    for (var i = 0; i < data.length; i++) {
        var row = table.append('tr');
        for (j = 0; j < headers.length; j++) {
            var td = row.append('td');
            if (styleFunction) {
                styleFunction.call(this, td, j);
            }
            dataFunction.call(this, data[i], j, td);
        }
    }
}

function bigBlobsReport() {
    var list = treemap.biggestblobs(100);
    var headers = ['Rank', 'Size (Bytes)', 'Type', 'Location'];
    var styleFunction = function(selection, index) {
        if (index === 3) {
            selection.style('font-family', 'monospace');
        }
    };
    var recordIndex = 1;
    var dataFunction = function(record, index, cell) {
        if (index === 0) {
            cell.text(recordIndex++);
        } else if (index === 1) {
            cell.text(D3BlobTreeMap._pretty(record.value));
        } else if (index === 2) {
            cell.text(record.t);
        } else {
            cell.append('span').text(treemap.pathFor(record));
            cell.append('br');
            cell.append('span').text('Blob: ');
            cell.append('span').text(record.n);
        }
    };
    showReport('100 Largest Blobs', list, headers, dataFunction, styleFunction);
}

function blobFilterTextChanged() {
    if (filterChanging) return true;
    filterChanging = true;
    var enabled = document.getElementById('blob_types_filter').value;
    for (var x=0; x<3; x++) {
        var checkBox = document.getElementById('check_' + x);
        checkBox.checked = (enabled.indexOf(checkBox.value) != -1);
    }
    filterChanging = false;
}

function updateFilterText() {
    if (filterChanging) return true;
    filterChanging = true;
    var text = '';
    for (var x=0; x<D3BlobTreeMap._BLOB_TYPES.length; x++) {
        var checkBox = document.getElementById('check_' + x);
        if (checkBox.checked) {
            text += checkBox.value;
        }
    }
    document.getElementById('blob_types_filter').value=text;
    filterChanging = false;
}

function initFilterOptions() {
    updateFilterText();
    for (var x=0; x<D3BlobTreeMap._BLOB_TYPES.length; x++) {
        var checkBox = document.getElementById('check_' + x);
        checkBox.onchange=updateFilterText;
        var swatch = document.getElementById('swatch_' + x);
        swatch.style.backgroundColor = D3BlobTreeMap.getColorForType(checkBox.value).toString();
    }
    var gteCheckbox = document.getElementById('check_gte');
    gteCheckbox.onchange = function() {
        document.getElementById('blob_filter_gte').disabled = !gteCheckbox.checked;
    }
    var regexCheckbox = document.getElementById('check_regex');
    regexCheckbox.onchange = function() {
        document.getElementById('blob_filter_regex').disabled = !regexCheckbox.checked;
    }
    var excludeRegexCheckbox = document.getElementById('check_exclude_regex');
    excludeRegexCheckbox.onchange = function() {
        document.getElementById('blob_filter_exclude_regex').disabled = !excludeRegexCheckbox.checked;
    }
    var idealSizes = getIdealSizes();
    document.getElementById('width').value = idealSizes.width;
    document.getElementById('height').value = idealSizes.height;
    saveFilterSettings();
}

function filterSetAll(enabled) {
    for (var x=0; x<D3BlobTreeMap._BLOB_TYPES.length; x++) {
        var checkBox = document.getElementById('check_' + x);
        checkBox.checked = enabled;
    }
    updateFilterText();
}

function showOptions() {
    loadFilterSettings();
    var container = document.getElementById('options_container');
    var w = container.offsetWidth;
    var h = container.offsetHeight;
    container.style.margin = '-' + (h/2) + 'px 0 0 -' + (w/2) + 'px';
    container.style.visibility = 'visible';
}

function hideOptions() {
    var container = document.getElementById('options_container');
    container.style.visibility = 'hidden';
}

function applySettings() {
    hideOptions();
    var oldWidth = savedSettings.width;
    var oldHeight = savedSettings.height;
    var oldblobs = savedSettings.blobTypes;
    var oldRegex = savedSettings.regex;
    var oldExcludeRegex = savedSettings.excludeRegex;
    var oldGte = savedSettings.gte;
    var oldMaxLevels = savedSettings.maxLevels;
    saveFilterSettings();
    var resizeNeeded = oldWidth !== savedSettings.width || oldHeight !== savedSettings.height;
    var regexChanged = oldRegex !== savedSettings.regex;
    var excludeRegexChanged = oldExcludeRegex !== savedSettings.excludeRegex;
    var blobsChanged = oldblobs !== savedSettings.blobTypes;
    var gteChanged = oldGte !== savedSettings.gte;
    var filterChanged = regexChanged || excludeRegexChanged || blobsChanged || gteChanged;
    var maxLevelsChanged = oldMaxLevels !== savedSettings.maxLevels;

    if (filterChanged) {
        // Type filters
        typeFilter = function(datum) {
            if (datum.depth === 0) return true; // root node
            if (datum.t === undefined) return true;
            return savedSettings.blobTypes !== undefined &&
                savedSettings.blobTypes.indexOf(datum.t) !== -1;
        }

        // Regex filter
        var regexFilter = undefined;
        if (savedSettings.regex !== undefined && savedSettings.regex.length > 0) {
            console.log('filter: regex is "' + savedSettings.regex + '"');
            var regex = new RegExp(savedSettings.regex);
            regexFilter = function(datum) {
                if (datum.depth === 0) return true; // root node
                var fullName = this.pathFor(datum);
                if (datum.children === undefined) { // it is a leaf node (blob)
                    fullName += ':' + datum.n;
                }
                return regex.test(fullName);
            }
        }

        // Exclude regex filter
        var excludeRegexFilter = undefined;
        if (savedSettings.excludeRegex !== undefined && savedSettings.excludeRegex.length > 0) {
            console.log('filter: exclude-regex is "' + savedSettings.excludeRegex + '"');
            var excludeRegex = new RegExp(savedSettings.excludeRegex);
            excludeRegexFilter = function(datum) {
                if (datum.depth === 0) return true; // root node
                var fullName = this.pathFor(datum);
                if (datum.children === undefined) { // it is a leaf node (blob)
                    fullName += ':' + datum.n;
                }
                return !excludeRegex.test(fullName);
            }
        }

        // Size filter
        var sizeFilter = undefined;
        if (savedSettings.gte !== undefined) {
            console.log('filter: minimum size is ' + savedSettings.gte + ' bytes');
            sizeFilter = function(datum) {
                if (datum.children !== undefined) return true; // non-leaf
                if (datum.value === undefined) console.log('whoops');
                return datum.value >= savedSettings.gte;
            }
        }

        // Make a filter to apply to the tree
        var filter = function(datum) {
            if (typeFilter && !typeFilter.call(this, datum)) return false;
            if (regexFilter && !regexFilter.call(this, datum)) return false;
            if (excludeRegexFilter && !excludeRegexFilter.call(this, datum)) return false;
            if (sizeFilter && !sizeFilter.call(this, datum)) return false;
            return true;
        };
        treemap.filter(filter);
    }

    // Adjust levels if needed.
    if (maxLevelsChanged) {
        treemap.setMaxLevels(savedSettings.maxLevels);
    }

    // Resize map if necessary.
    if (resizeNeeded) {
        console.log('desired treemap dimensions have changed, requesting resize');
        treemap.resize(savedSettings.width, savedSettings.height);
    }
}

function cancelSettings() {
    hideOptions();
    loadFilterSettings();
}

function saveFilterSettings() {
    savedSettings.blobTypes = document.getElementById('blob_types_filter').value;
    if (document.getElementById('check_regex').checked) {
        savedSettings.regex = document.getElementById('blob_filter_regex').value;
    } else {
        savedSettings.regex = undefined;
    }
    if (document.getElementById('check_exclude_regex').checked) {
        savedSettings.excludeRegex = document.getElementById('blob_filter_exclude_regex').value;
    } else {
        savedSettings.excludeRegex = undefined;
    }
    if (document.getElementById('check_gte').checked) {
        savedSettings.gte = parseInt(document.getElementById('blob_filter_gte').value);
    } else {
        savedSettings.gte = undefined;
    }
    savedSettings.width = parseInt(document.getElementById('width').value);
    savedSettings.height = parseInt(document.getElementById('height').value);
    savedSettings.maxLevels = parseInt(document.getElementById('max_levels').value);
}

function loadFilterSettings() {
    document.getElementById('blob_types_filter').value = savedSettings.blobTypes;
    blobFilterTextChanged();
    if (savedSettings.regex !== undefined) {
        document.getElementById('check_regex').checked = true;
        document.getElementById('blob_filter_regex').value = savedSettings.regex;
    } else {
        document.getElementById('check_regex').checked = false;
    }
    if (savedSettings.excludeRegex !== undefined) {
        document.getElementById('check_exclude_regex').checked = true;
        document.getElementById('blob_filter_exclude_regex').value = savedSettings.excludeRegex;
    } else {
        document.getElementById('check_exclude_regex').checked = false;
    }
    if (savedSettings.gte !== undefined) {
        document.getElementById('check_gte').checked = true;
        document.getElementById('blob_filter_gte').value = savedSettings.gte;
    } else {
        document.getElementById('check_gte').checked = false;
    }
    document.getElementById('width').value = savedSettings.width;
    document.getElementById('height').value = savedSettings.height;
    document.getElementById('max_levels').value = savedSettings.maxLevels;
}

function escape(str) {
    return str.replace(/&/g, '&amp;')
              .replace(/"/g, '&quot;')
              .replace(/</g, '&lt;')
              .replace(/>/g, '&gt;');
}
</script>
</head>
<body onload='init()'>
<div style='position: absolute; top: 5px; left: 5px;'>
  <input type='button' onclick='showOptions()' value='Options &amp; Legend...'>
  <span style='-webkit-user-select: none; cursor: help;' title='Click to view the blob legend or to configure filters and options for the treemap'>[?]</span>
</div>
<div style='position: absolute; right: 5px; top: 5px; white-space: nowrap;'>
    Reports:
    <input type='button' onclick='bigBlobsReport()' value='Large Blobs' title='Click to view a report of the largest 100 blobs that are with the bounds of the treemap that is currently displayed.'>
</div>
<div style='text-align: center; margin-bottom: 5px;'>
    <span style='font-size: x-large; font-weight: bold; font-variant: small-caps'>Blob Size Analysis<span id='subtitle'></span></span>
    <br><span style='font-size: small; font-style: italic;'>Double-click a box to zoom in, double-click outermost title to zoom out.</span>
</div>
<table id='options_container' style='visibility: hidden; border: 3px ridge grey; padding: 0px; top: 50%; left: 50%; position: fixed; z-index: 2147483646; overflow: auto; background-color: rgba(255,255,255,0.9); border-radius: 10px; box-shadow: 10px 10px 5px rgba(80,80,80,0.7);'><tr><td style='vertical-align: top'>
    <table cellspacing=0 cellborder=0 style='width:100%'>
        <tr><th colspan=3 style='padding-bottom: .25em; text-decoration: underline;'>blob Types To Show</th></tr>
        <tr>
            <td style='white-space: nowrap; vertical-align: top;'>
                    <span class='swatch' id='swatch_0'>&nbsp;&nbsp;&nbsp;</span><input checked type='checkbox' id='check_0' value='dart'>Shared Dart
                <br><span class='swatch' id='swatch_1'>&nbsp;&nbsp;&nbsp;</span><input checked type='checkbox' id='check_1' value='?'>Shared Unrecognized
                <br><span class='swatch' id='swatch_2'>&nbsp;&nbsp;&nbsp;</span><input checked type='checkbox' id='check_2' value='unique'>Unique
                <br><span class='swatch' id='swatch_3'>&nbsp;&nbsp;&nbsp;</span><input checked type='checkbox' id='check_3' value='uniDart'>Unique Dart
        </tr>
        <tr><td colspan=3 style='text-align: center; white-space: nowrap; padding-top: 1em;'>
            Select <input type='button' onclick='filterSetAll(true)' value='All'>,
            <input type='button' onclick='filterSetAll(false)' value='None'>,
            or type a string: <input id='blob_types_filter' size=30 value='' onkeyup='blobFilterTextChanged()' onblur='updateFilterText()'>
            <span style='-webkit-user-select: none; cursor: help;' title='Enter codes from the list above for the blobs you want to see. The checkboxes will update automatically to match the string that you enter.'>[?]</span>
        </td></tr>
   </table>
</td></tr><tr><td style='vertical-align: top; padding-top: 10px; border-top: 1px solid grey;'>
    <table cellspacing=0 cellborder=0 style='width: 100%'>
        <tr><th colspan=2 style='padding-bottom: .25em; text-decoration: underline;'>Advanced Options</th></tr>
        <tr>
            <td style='white-space: nowrap; vertical-align: top;'>
                <input type='checkbox' id='check_regex'>
                Only include blobs matching this regex:
            </td>
            <td style='text-align: right; vertical-align: top;'>
                <input disabled id='blob_filter_regex' size=30 value='' style='text-align: right;'>
                <span style='-webkit-user-select: none; cursor: help;' title='Enter a javascript regex. Only blobs that match this regex will be shown. This filter applies before any exclusion regex specified below. The format of each blob is [path]:[blob_name]'>[?]</span>
            </td>
        </tr>
        <tr>
            <td style='white-space: nowrap; vertical-align: top;'>
                <input type='checkbox' id='check_exclude_regex'>
                Exclude all blobs matching this regex:
            </td>
            <td style='text-align: right; vertical-align: top;'>
                <input disabled id='blob_filter_exclude_regex' size=30 value='' style='text-align: right;'>
                <span style='-webkit-user-select: none; cursor: help;' title='Enter a javascript regex. blobs that match this tegex will not be shown. This filter applies after any inclusion filter specified above. The format of each blob is [path]:[blob_name]'>[?]</span>
            </td>
        </tr>
        <tr>
            <td style='white-space: nowrap; vertical-align: top;'>
                <input type='checkbox' id='check_gte'>
                Only include blobs that are at least <span style='font-style: italic;'>n</span> bytes:
            </td>
            <td style='text-align: right; vertical-align: top;'>
                <input disabled id='blob_filter_gte' size=8 value='' style='text-align: right;'>
                <span style='-webkit-user-select: none; cursor: help;' title='blobs whose size is less than this value will be hidden.'>[?]</span>
            </td>
        </tr>
        <tr>
            <td style='white-space: nowrap vertical-align: top;;'>
                Show at most <span style='font-style: italic;'>n</span> levels of detail at a time:
            </td>
            <td style='text-align: right; vertical-align: top;'>
                <input id='max_levels' size=4 value='2' style='text-align: right;'><span style='-webkit-user-select: none; cursor: help;' title='Increasing this value shows more detail without the need to zoom, but uses more computing power.'>[?]</span>
            </td>
        </tr>
        <tr>
            <td style='white-space: nowrap vertical-align: top;;'>
                Set the size of the treemap to <span style='font-style: italic;'>W x H</span> pixels:
            </td>
            <td style='text-align: right; vertical-align: top;'>
                <input id='width' size=4 value='' style='text-align: right;'>
                &nbsp;x&nbsp;<input id='height' size=4 value='' style='text-align: right;'>
            </td>
        </tr>
    </table>
</td></tr>
<tr><td style='padding-top: 10px; text-align: right; border-top: 1px solid grey'>
    <input type='button' value='Apply' onclick='applySettings()'>
    <input type='button' value='Cancel' onclick='cancelSettings()'>
</td></tr></table>
</body>
</html>