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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/. */
"use strict";
const constants = require("../constants");
const Immutable = require("devtools/client/shared/vendor/seamless-immutable");
const { mergeIn, setIn, deleteIn } = require("../utils");
const { makeLocationId } = require("../queries");
const initialState = Immutable({
breakpoints: {}
});
// Return the first argument that is a string, or null if nothing is a
// string.
function firstString(...args) {
for (var arg of args) {
if (typeof arg === "string") {
return arg;
}
}
return null;
}
function update(state = initialState, action, emitChange) {
switch (action.type) {
case constants.ADD_BREAKPOINT: {
const id = makeLocationId(action.breakpoint.location);
if (action.status === "start") {
const existingBp = state.breakpoints[id];
const bp = existingBp || Immutable(action.breakpoint);
state = setIn(state, ["breakpoints", id], bp.merge({
disabled: false,
loading: true,
// We want to do an OR here, but we can't because we need
// empty strings to be truthy, i.e. an empty string is a valid
// condition.
condition: firstString(action.condition, bp.condition)
}));
emitChange(existingBp ? "breakpoint-enabled" : "breakpoint-added",
state.breakpoints[id]);
return state;
}
else if (action.status === "done") {
const { actor, text } = action.value;
let { actualLocation } = action.value;
// If the breakpoint moved, update the map
if (actualLocation) {
// XXX Bug 1227417: The `setBreakpoint` RDP request rdp
// request returns an `actualLocation` field that doesn't
// conform to the regular { actor, line } location shape, but
// it has a `source` field. We should fix that.
actualLocation = { actor: actualLocation.source.actor,
line: actualLocation.line };
state = deleteIn(state, ["breakpoints", id]);
const movedId = makeLocationId(actualLocation);
const currentBp = state.breakpoints[movedId] || Immutable(action.breakpoint);
const prevLocation = action.breakpoint.location;
const newBp = currentBp.merge({ location: actualLocation });
state = setIn(state, ["breakpoints", movedId], newBp);
emitChange("breakpoint-moved", {
breakpoint: newBp,
prevLocation: prevLocation
});
}
const finalLocation = (
actualLocation ? actualLocation : action.breakpoint.location
);
const finalLocationId = makeLocationId(finalLocation);
state = mergeIn(state, ["breakpoints", finalLocationId], {
disabled: false,
loading: false,
actor: actor,
text: text
});
emitChange("breakpoint-updated", state.breakpoints[finalLocationId]);
return state;
}
else if (action.status === "error") {
// Remove the optimistic update
emitChange("breakpoint-removed", state.breakpoints[id]);
return deleteIn(state, ["breakpoints", id]);
}
break;
}
case constants.REMOVE_BREAKPOINT: {
if (action.status === "done") {
const id = makeLocationId(action.breakpoint.location);
const bp = state.breakpoints[id];
if (action.disabled) {
state = mergeIn(state, ["breakpoints", id],
{ loading: false, disabled: true });
emitChange("breakpoint-disabled", state.breakpoints[id]);
return state;
}
state = deleteIn(state, ["breakpoints", id]);
emitChange("breakpoint-removed", bp);
return state;
}
break;
}
case constants.SET_BREAKPOINT_CONDITION: {
const id = makeLocationId(action.breakpoint.location);
const bp = state.breakpoints[id];
emitChange("breakpoint-condition-updated", bp);
if (!action.status) {
// No status means that it wasn't a remote request. Just update
// the condition locally.
return mergeIn(state, ["breakpoints", id], {
condition: action.condition
});
}
else if (action.status === "start") {
return mergeIn(state, ["breakpoints", id], {
loading: true,
condition: action.condition
});
}
else if (action.status === "done") {
return mergeIn(state, ["breakpoints", id], {
loading: false,
condition: action.condition,
// Setting a condition creates a new breakpoint client as of
// now, so we need to update the actor
actor: action.value.actor
});
}
else if (action.status === "error") {
emitChange("breakpoint-removed", bp);
return deleteIn(state, ["breakpoints", id]);
}
break;
}}
return state;
}
module.exports = update;
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