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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
const { assert, isSavedFrame } = require("devtools/shared/DevToolsUtils");
const { DOM: dom, createClass, createFactory, PropTypes } = require("devtools/client/shared/vendor/react");
const { L10N, formatNumber, formatPercent } = require("../utils");
const Frame = createFactory(require("devtools/client/shared/components/frame"));
const { TREE_ROW_HEIGHT } = require("../constants");
const Separator = createFactory(createClass({
displayName: "Separator",
render() {
return dom.span({ className: "separator" }, "›");
}
}));
const DominatorTreeItem = module.exports = createClass({
displayName: "DominatorTreeItem",
propTypes: {
item: PropTypes.object.isRequired,
depth: PropTypes.number.isRequired,
arrow: PropTypes.object,
focused: PropTypes.bool.isRequired,
getPercentSize: PropTypes.func.isRequired,
onViewSourceInDebugger: PropTypes.func.isRequired,
},
shouldComponentUpdate(nextProps, nextState) {
return this.props.item != nextProps.item
|| this.props.depth != nextProps.depth
|| this.props.expanded != nextProps.expanded
|| this.props.focused != nextProps.focused;
},
render() {
let {
item,
depth,
arrow,
focused,
getPercentSize,
onViewSourceInDebugger,
} = this.props;
const retainedSize = formatNumber(item.retainedSize);
const percentRetainedSize = formatPercent(getPercentSize(item.retainedSize));
const shallowSize = formatNumber(item.shallowSize);
const percentShallowSize = formatPercent(getPercentSize(item.shallowSize));
// Build up our label UI as an array of each label piece, which is either a
// string or a frame, and separators in between them.
assert(item.label.length > 0,
"Our label should not be empty");
const label = Array(item.label.length * 2 - 1);
label.fill(undefined);
for (let i = 0, length = item.label.length; i < length; i++) {
const piece = item.label[i];
const key = `${item.nodeId}-label-${i}`;
// `i` is the index of the label piece we are rendering, `label[i*2]` is
// where the rendered label piece belngs, and `label[i*2+1]` (if it isn't
// out of bounds) is where the separator belongs.
if (isSavedFrame(piece)) {
label[i * 2] = Frame({
key,
onClick: () => onViewSourceInDebugger(piece),
frame: piece,
showFunctionName: true
});
} else if (piece === "noStack") {
label[i * 2] = dom.span({ key, className: "not-available" },
L10N.getStr("tree-item.nostack"));
} else if (piece === "noFilename") {
label[i * 2] = dom.span({ key, className: "not-available" },
L10N.getStr("tree-item.nofilename"));
} else if (piece === "JS::ubi::RootList") {
// Don't use the usual labeling machinery for root lists: replace it
// with the "GC Roots" string.
label.splice(0, label.length);
label.push(L10N.getStr("tree-item.rootlist"));
break;
} else {
label[i * 2] = piece;
}
// If this is not the last piece of the label, add a separator.
if (i < length - 1) {
label[i * 2 + 1] = Separator({ key: `${item.nodeId}-separator-${i}` });
}
}
return dom.div(
{
className: `heap-tree-item ${focused ? "focused" : ""} node-${item.nodeId}`
},
dom.span(
{
className: "heap-tree-item-field heap-tree-item-bytes"
},
dom.span(
{
className: "heap-tree-number"
},
retainedSize
),
dom.span({ className: "heap-tree-percent" }, percentRetainedSize)
),
dom.span(
{
className: "heap-tree-item-field heap-tree-item-bytes"
},
dom.span(
{
className: "heap-tree-number"
},
shallowSize
),
dom.span({ className: "heap-tree-percent" }, percentShallowSize)
),
dom.span(
{
className: "heap-tree-item-field heap-tree-item-name",
style: { marginInlineStart: depth * TREE_ROW_HEIGHT }
},
arrow,
label,
dom.span({ className: "heap-tree-item-address" },
`@ 0x${item.nodeId.toString(16)}`)
)
);
},
});
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