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Breakpoint.js
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113 lines (87 loc) · 2.79 KB
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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/>. */
// @flow
import React, { PureComponent } from "react";
import ReactDOM from "react-dom";
import classnames from "classnames";
import Svg from "../shared/Svg";
import { getDocument, toEditorLine } from "../../utils/editor";
import { features } from "../../utils/prefs";
import type { Source, Breakpoint as BreakpointType } from "../../types";
const breakpointSvg = document.createElement("div");
ReactDOM.render(<Svg name="breakpoint" />, breakpointSvg);
function makeMarker(isDisabled: boolean) {
const bp = breakpointSvg.cloneNode(true);
bp.className = classnames("editor new-breakpoint", {
"breakpoint-disabled": isDisabled,
"folding-enabled": features.codeFolding
});
return bp;
}
type Props = {
breakpoint: BreakpointType,
selectedSource: Source,
editor: Object
};
class Breakpoint extends PureComponent<Props> {
addBreakpoint: Function;
addBreakpoint = () => {
const { breakpoint, editor, selectedSource } = this.props;
// Hidden Breakpoints are never rendered on the client
if (breakpoint.hidden) {
return;
}
// NOTE: we need to wait for the breakpoint to be loaded
// to get the generated location
if (!selectedSource || breakpoint.loading) {
return;
}
const sourceId = selectedSource.id;
const line = toEditorLine(sourceId, breakpoint.location.line);
editor.codeMirror.setGutterMarker(
line,
"breakpoints",
makeMarker(breakpoint.disabled)
);
editor.codeMirror.addLineClass(line, "line", "new-breakpoint");
if (breakpoint.condition) {
editor.codeMirror.addLineClass(line, "line", "has-condition");
} else {
editor.codeMirror.removeLineClass(line, "line", "has-condition");
}
};
componentDidMount() {
this.addBreakpoint();
}
componentDidUpdate() {
this.addBreakpoint();
}
componentWillUnmount() {
const { editor, breakpoint, selectedSource } = this.props;
if (!selectedSource) {
return;
}
if (breakpoint.loading) {
return;
}
const sourceId = selectedSource.id;
const doc = getDocument(sourceId);
if (!doc) {
return;
}
const line = toEditorLine(sourceId, breakpoint.location.line);
// NOTE: when we upgrade codemirror we can use `doc.setGutterMarker`
if (doc.setGutterMarker) {
doc.setGutterMarker(line, "breakpoints", null);
} else {
editor.codeMirror.setGutterMarker(line, "breakpoints", null);
}
doc.removeLineClass(line, "line", "new-breakpoint");
doc.removeLineClass(line, "line", "has-condition");
}
render() {
return null;
}
}
export default Breakpoint;