Inject ResizeObserver polyfill where needed #20754
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@bramkragten the small overall bundle increases are because this now polyfills dependencies that use |
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WalkthroughWalkthroughThe updates primarily focus on integrating a Changes
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Actionable comments posted: 0
Outside diff range and nitpick comments (32)
src/resources/compatibility.ts (3)
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7-28: Consider usingfor...ofinstead offorEachfor better performance and readability in polyfill implementations.- arr.forEach((item) => { + for (const item of arr) {
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6-29: Convert the function expression to an arrow function for consistency with modern JavaScript practices.- (function (arr) { + ((arr) => {
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48-48: Avoid reassigning function parameters as it can lead to confusion. Consider using a different variable.- force = !!force; + const coercedForce = !!force;src/state-summary/state-card-input_number.ts (2)
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126-126: Avoid using non-null assertions. Consider using optional chaining or proper checks before accessing properties.- this.shadowRoot!.querySelector(".state") + this.shadowRoot?.querySelector(".state")Also applies to: 147-147
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2-2: Ensure that imports used only as types are correctly marked withimport type.- import { HassEntity } from "home-assistant-js-websocket"; + import type { HassEntity } from "home-assistant-js-websocket";Also applies to: 3-3, 11-11
src/state-summary/state-card-number.ts (2)
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103-103: Avoid using non-null assertions. Consider using optional chaining or proper checks before accessing properties.- this.shadowRoot!.querySelector(".state") + this.shadowRoot?.querySelector(".state")
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3-3: Ensure that imports used only as types are correctly marked withimport type.- import { HomeAssistant } from "../types"; + import type { HomeAssistant } from "../types";Also applies to: 8-8
src/panels/lovelace/entity-rows/hui-input-number-entity-row.ts (3)
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155-155: Avoid using non-null assertions without checking for null or undefined.Consider adding a null check before using the
!operator to ensure that the object is not null or undefined. This will prevent potential runtime errors.
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174-174: Avoid repeated non-null assertions.You've used the non-null assertion operator multiple times on the same line. Ensure that the object is not null or undefined before using it, or refactor the code to perform the check once.
Also applies to: 174-174, 178-178
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2-9: Optimize imports by removing unused ones.You have several imports that are only used as types. These can be imported using
import typeto make it clear that they are only used for type checking and not included in the JavaScript output.- import { CSSResultGroup, LitElement, PropertyValues, css, html, nothing } from "lit"; + import type { CSSResultGroup, LitElement, PropertyValues } from "lit"; + import { css, html, nothing } from "lit"; - import { customElement, property, state } from "lit/decorators"; + import type { customElement, property, state } from "lit/decorators"; - import { HomeAssistant } from "../../../types"; + import type { HomeAssistant } from "../../../types";Also applies to: 16-16, 20-20
src/panels/lovelace/entity-rows/hui-number-entity-row.ts (3)
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161-161: Avoid using non-null assertions without checking for null or undefined.Consider adding a null check before using the
!operator to ensure that the object is not null or undefined. This will prevent potential runtime errors.
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180-180: Avoid repeated non-null assertions.You've used the non-null assertion operator multiple times on the same line. Ensure that the object is not null or undefined before using it, or refactor the code to perform the check once.
Also applies to: 180-180, 183-183, 183-183
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2-9: Optimize imports by removing unused ones.You have several imports that are only used as types. These can be imported using
import typeto make it clear that they are only used for type checking and not included in the JavaScript output.- import { CSSResultGroup, LitElement, PropertyValues, css, html, nothing } from "lit"; + import type { CSSResultGroup, LitElement, PropertyValues } from "lit"; + import { css, html, nothing } from "lit"; - import { customElement, property, state } from "lit/decorators"; + import type { customElement, property, state } from "lit/decorators"; - import { HomeAssistant } from "../../../types"; + import type { HomeAssistant } from "../../../types";Also applies to: 16-16, 20-20
src/panels/lovelace/cards/hui-calendar-card.ts (2)
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89-89: Avoid using non-null assertions without checking for null or undefined.Multiple lines in your code use the non-null assertion operator without prior null checks. This can lead to runtime errors if the objects are actually null or undefined. Consider adding appropriate checks or handling potential null values gracefully.
Also applies to: 136-136, 162-162, 181-181, 191-191, 192-192, 197-197, 204-204, 217-217
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2-9: Optimize imports by removing unused ones.Several imports in your file are only used for type checking. You can optimize these imports by using
import type, which will not include them in the JavaScript output, reducing the bundle size.- import { css, CSSResultGroup, html, LitElement, PropertyValues, nothing } from "lit"; + import type { CSSResultGroup, LitElement, PropertyValues } from "lit"; + import { css, html, nothing } from "lit"; - import { customElement, property, state } from "lit/decorators"; + import type { customElement, property, state } from "lit/decorators"; - import type { HomeAssistant } from "../../../types"; + import { HomeAssistant } from "../../../types"; - import { Calendar, CalendarEvent, fetchCalendarEvents } from "../../../data/calendar"; + import type { Calendar, CalendarEvent } from "../../../data/calendar"; + import { fetchCalendarEvents } from "../../../data/calendar";Also applies to: 13-13, 17-21
src/panels/lovelace/entity-rows/hui-media-player-entity-row.ts (2)
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147-147: Avoid unnecessary template literals.You have used template literals in several places where simple strings would suffice. This is unnecessary and can be simplified.
- .label=${this.hass.localize(`ui.card.media_player.media_play`)} + .label=${this.hass.localize("ui.card.media_player.media_play")} - .label=${this.hass.localize(`ui.card.media_player.media_pause`)} + .label=${this.hass.localize("ui.card.media_player.media_pause")} - .label=${this.hass.localize(`ui.card.media_player.media_stop`)} + .label=${this.hass.localize("ui.card.media_player.media_stop")}Also applies to: 157-157, 168-168
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320-320: Avoid using non-null assertions without checking for null or undefined.Multiple lines in your code use the non-null assertion operator without prior null checks. This can lead to runtime errors if the objects are actually null or undefined. Consider adding appropriate checks or handling potential null values gracefully.
Also applies to: 320-320, 322-322, 326-326, 332-332, 332-332, 341-341, 342-342, 347-347, 348-348, 353-353, 354-354, 359-359, 360-360, 365-365, 366-366, 371-371
src/components/map/ha-map.ts (5)
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9-9: Consider renaming theMaptype fromleafletto avoid shadowing the globalMapobject.- import type { Map } from "leaflet"; + import type { Map as LeafletMap } from "leaflet";
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131-131: Avoid using non-null assertions without checking for null or undefined.- this.leafletMap!.setZoom(this.zoom); + if (this.leafletMap) { + this.leafletMap.setZoom(this.zoom); + }Also applies to: 154-154, 176-176, 177-177, 178-178, 185-185, 189-189
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224-228: Consider usingfor...ofloops instead offorEachfor better readability and potential performance benefits.- this._mapItems.forEach((marker) => marker.remove()); + for (const marker of this._mapItems) { + marker.remove(); + }Also applies to: 231-235, 257-257, 263-265, 301-301, 312-379
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231-231: Specify a more precise type instead ofany.- this.layers?.forEach((layer: any) => { + this.layers?.forEach((layer: Layer) => {
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262-262: Ensure elements are not null before accessing them to avoid runtime errors.- const map = this.renderRoot.querySelector("#map"); + const map = this.renderRoot.querySelector("#map"); + if (!map) return;Also applies to: 326-326, 331-331, 347-347
src/panels/lovelace/components/hui-energy-period-selector.ts (2)
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25-25: Optimize imports by marking type-only imports explicitly.- import type { RequestSelectedDetail } from "@material/mwc-list/mwc-list-item"; - import type { UnsubscribeFunc } from "home-assistant-js-websocket"; - import type { DateRangePickerRanges } from "../../../components/ha-date-range-picker"; - import type { EnergyData, getEnergyDataCollection } from "../../../data/energy"; + import { RequestSelectedDetail } from "@material/mwc-list/mwc-list-item"; + import { UnsubscribeFunc } from "home-assistant-js-websocket"; + import { DateRangePickerRanges } from "../../../components/ha-date-range-picker"; + import { EnergyData, getEnergyDataCollection } from "../../../data/energy";Also applies to: 26-33, 56-56, 58-58
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293-293: Avoid non-null assertions to ensure robust error handling.Consider adding null checks or using optional chaining (
?.) to handle potential null or undefined values safely.Also applies to: 350-350, 430-431, 439-440, 451-451, 475-476, 532-533, 541-542, 558-559, 572-573, 588-589
src/panels/lovelace/cards/hui-weather-forecast-card.ts (1)
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85-85: Avoid non-null assertions to ensure robust error handling.Consider adding null checks or using optional chaining (
?.) to handle potential null or undefined values safely.Also applies to: 108-108, 109-109, 110-110, 191-191, 192-192, 244-244, 245-245, 302-302, 323-323, 344-344, 345-345, 349-349, 352-352, 361-361, 362-362, 368-368, 369-369, 377-377
src/panels/lovelace/cards/hui-media-control-card.ts (2)
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170-170: Prefer template literals over string concatenation for better readability and maintainability.- "background-image": `linear-gradient(to right, ${this._backgroundColor}, ${this._backgroundColor + "00"})`, + "background-image": `linear-gradient(to right, ${this._backgroundColor}, ${this._backgroundColor}00)`,
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243-243: Consider verifying object existence before usage to avoid potential runtime errors from non-null assertions.- this._config!.entity + this._config?.entity ?? throw new Error("Configuration is undefined.")Apply similar checks for other non-null assertions throughout the file.
Also applies to: 244-244, 280-280, 473-473, 489-489, 499-499, 506-506, 510-510, 519-519, 520-520, 521-521, 529-529, 534-534, 538-538, 547-547, 549-549
src/components/media-player/ha-media-player-browse.ts (5)
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9-17: Consider removing unused type imports to clean up the code.- import type { LitVirtualizer } from "@lit-labs/virtualizer"; - import type { MediaPlayerItem } from "../../data/media-player"; - import type { HomeAssistant } from "../../types";These imports are only used for type annotations and can be safely removed if they are not used elsewhere in the code.
Also applies to: 32-39
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204-204: Avoid using non-null assertions unless absolutely necessary.Using non-null assertions (
!) bypasses TypeScript's strict null checks, which can lead to runtime errors if the assumptions about non-nullability are incorrect. Consider adding proper checks or handling potential null values gracefully.Also applies to: 217-217, 624-624, 686-686
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261-261: Use simple strings instead of template literals when not needed.- backgroundImage = `none`; + backgroundImage = "none";Template literals are unnecessary here since there is no dynamic content being interpolated.
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707-707: Avoid reassigning parameters as it can lead to confusing behaviors.- const item = (ev.currentTarget as any).item; + const { item } = ev.currentTarget as any;This change avoids direct reassignment and makes the code cleaner by using destructuring.
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720-720: Specify explicit types instead of usingany.Using
anytype defeats the purpose of TypeScript's static typing. It's better to specify explicit types for better type safety and code clarity.- const item = (ev.currentTarget as any).item; + const item = (ev.currentTarget as HTMLElement & { item: MediaPlayerItem }).item;Adjust the type annotations to reflect the actual expected types.
Also applies to: 740-740, 785-785, 849-849
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Visually no differences on legacy build with polyfill. It just needs the open question to be addressed to merge. |
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Actually, thinking about it more, it would not make sense to limit where the polyfill gets injected. Since The polyfill sets a global object, that would lead to inconsistent usage depending on how things are bundled or which pages the user decides to visit. |
Proposed change
Inject polyfill for
ResizeObserverusing Babel plugin and remove manual loads. Feature detection is simplified and a top levelawaitis used to only load it when needed.I made sure there were no errors, but since functionally the observer callbacks mostly do visual stuff, please double check the areas where we use them. Note it's easy to force both the polyfill just by changing the feature detection to
if (true), and the legacy build can be forced just by editingindex.htmlto remove the scripts that do imports.Type of change
Example configuration
Additional information
Checklist
If user exposed functionality or configuration variables are added/changed:
Summary by CodeRabbit
New Features
ResizeObserverpolyfill, ensuring compatibility with older browsers.Refactor
ResizeObserveracross multiple components by removing theloadPolyfillIfNeededfunction calls.Chores
These changes improve the performance and maintainability of the application while ensuring better cross-browser compatibility.