134 lines
3.7 KiB
JavaScript
134 lines
3.7 KiB
JavaScript
/* 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 initialReducerState = {
|
|
counter: 1,
|
|
breakpoints: [],
|
|
};
|
|
|
|
exports.reducer = domMutationBreakpointReducer;
|
|
function domMutationBreakpointReducer(state = initialReducerState, action) {
|
|
switch (action.type) {
|
|
case "ADD_DOM_MUTATION_BREAKPOINT":
|
|
const hasExistingBp = state.breakpoints.some(
|
|
bp =>
|
|
bp.nodeFront === action.nodeFront &&
|
|
bp.mutationType === action.mutationType
|
|
);
|
|
|
|
if (hasExistingBp) {
|
|
break;
|
|
}
|
|
|
|
state = {
|
|
...state,
|
|
counter: state.counter + 1,
|
|
breakpoints: [
|
|
...state.breakpoints,
|
|
{
|
|
id: `${state.counter}`,
|
|
nodeFront: action.nodeFront,
|
|
targetFront: action.nodeFront.targetFront,
|
|
mutationType: action.mutationType,
|
|
enabled: true,
|
|
},
|
|
],
|
|
};
|
|
break;
|
|
case "REMOVE_DOM_MUTATION_BREAKPOINT":
|
|
for (const [index, bp] of state.breakpoints.entries()) {
|
|
if (
|
|
bp.nodeFront === action.nodeFront &&
|
|
bp.mutationType === action.mutationType
|
|
) {
|
|
state = {
|
|
...state,
|
|
breakpoints: [
|
|
...state.breakpoints.slice(0, index),
|
|
...state.breakpoints.slice(index + 1),
|
|
],
|
|
};
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case "REMOVE_DOM_MUTATION_BREAKPOINTS_FOR_FRONTS": {
|
|
const { nodeFronts } = action;
|
|
const nodeFrontSet = new Set(nodeFronts);
|
|
|
|
const breakpoints = state.breakpoints.filter(
|
|
bp => !nodeFrontSet.has(bp.nodeFront)
|
|
);
|
|
|
|
// Since we might not have made any actual changes, we verify first
|
|
// to avoid unnecessary changes in the state.
|
|
if (state.breakpoints.length !== breakpoints.length) {
|
|
state = {
|
|
...state,
|
|
breakpoints,
|
|
};
|
|
}
|
|
break;
|
|
}
|
|
|
|
case "REMOVE_TARGET": {
|
|
const { targetFront } = action;
|
|
// When a target is destroyed, remove breakpoints associated with it.
|
|
const breakpoints = state.breakpoints.filter(
|
|
bp => bp.targetFront !== targetFront
|
|
);
|
|
|
|
// Since we might not have made any actual changes, we verify first
|
|
// to avoid unnecessary changes in the state.
|
|
if (state.breakpoints.length !== breakpoints.length) {
|
|
state = {
|
|
...state,
|
|
breakpoints,
|
|
};
|
|
}
|
|
break;
|
|
}
|
|
|
|
case "SET_DOM_MUTATION_BREAKPOINTS_ENABLED_STATE": {
|
|
const { enabledStates } = action;
|
|
const toUpdateById = new Map(enabledStates);
|
|
|
|
const breakpoints = state.breakpoints.map(bp => {
|
|
const newBpState = toUpdateById.get(bp.id);
|
|
if (typeof newBpState === "boolean" && newBpState !== bp.enabled) {
|
|
bp = {
|
|
...bp,
|
|
enabled: newBpState,
|
|
};
|
|
}
|
|
|
|
return bp;
|
|
});
|
|
|
|
// Since we might not have made any actual changes, we verify first
|
|
// to avoid unnecessary changes in the state.
|
|
if (state.breakpoints.some((bp, i) => breakpoints[i] !== bp)) {
|
|
state = {
|
|
...state,
|
|
breakpoints,
|
|
};
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return state;
|
|
}
|
|
|
|
exports.getDOMMutationBreakpoints = getDOMMutationBreakpoints;
|
|
function getDOMMutationBreakpoints(state) {
|
|
return state.domMutationBreakpoints.breakpoints;
|
|
}
|
|
|
|
exports.getDOMMutationBreakpoint = getDOMMutationBreakpoint;
|
|
function getDOMMutationBreakpoint(state, id) {
|
|
return (
|
|
state.domMutationBreakpoints.breakpoints.find(v => v.id === id) || null
|
|
);
|
|
}
|