1 files changed, 79 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/selectors/breakpointSources.js b/devtools/client/debugger/src/selectors/breakpointSources.js
new file mode 100644
index 0000000000..0734f38602
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+++ b/devtools/client/debugger/src/selectors/breakpointSources.js
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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 { sortBy, uniq } from "lodash";
+import { createSelector } from "reselect";
+import {
+  getSources,
+  getBreakpointsList,
+  getSelectedSource,
+  resourceAsSourceBase,
+} from "../selectors";
+import { getFilename } from "../utils/source";
+import { getSelectedLocation } from "../utils/selected-location";
+import { makeShallowQuery } from "../utils/resource";
+import { sortSelectedBreakpoints } from "../utils/breakpoint";
+
+import type { Source, Breakpoint } from "../types";
+import type { Selector, SourceBase, State } from "../reducers/types";
+
+export type BreakpointSources = Array<{
+  source: Source,
+  breakpoints: Breakpoint[],
+}>;
+
+function getBreakpointsForSource(
+  source: Source,
+  selectedSource: ?Source,
+  breakpoints: Breakpoint[]
+): Breakpoint[] {
+  return sortSelectedBreakpoints(breakpoints, selectedSource)
+    .filter(
+      bp =>
+        !bp.options.hidden &&
+        (bp.text || bp.originalText || bp.options.condition || bp.disabled)
+    )
+    .filter(
+      bp => getSelectedLocation(bp, selectedSource).sourceId == source.id
+    );
+}
+
+export const findBreakpointSources = (state: State) => {
+  const breakpoints = getBreakpointsList(state);
+  const sources = getSources(state);
+  const selectedSource = getSelectedSource(state);
+  return queryBreakpointSources(sources, { breakpoints, selectedSource });
+};
+
+const queryBreakpointSources = makeShallowQuery({
+  filter: (_, { breakpoints, selectedSource }) =>
+    uniq(
+      breakpoints.map(bp => getSelectedLocation(bp, selectedSource).sourceId)
+    ),
+  map: resourceAsSourceBase,
+  reduce: (sources): Array<SourceBase> => {
+    const filtered = sources.filter(source => source && !source.isBlackBoxed);
+    return sortBy(filtered, source => getFilename(source));
+  },
+});
+
+export const getBreakpointSources: Selector<BreakpointSources> = createSelector(
+  getBreakpointsList,
+  findBreakpointSources,
+  getSelectedSource,
+  (breakpoints: Breakpoint[], sources: Source[], selectedSource: ?Source) => {
+    return sources
+      .map(source => ({
+        source,
+        breakpoints: getBreakpointsForSource(
+          source,
+          selectedSource,
+          breakpoints
+        ),
+      }))
+      .filter(({ breakpoints: bpSources }) => bpSources.length > 0);
+  }
+);