Make it so you can include DropdownMenus on all kinds of buttons

ts/editor-toolbar/ButtonGroup.svelte

@@ -1,10 +1,6 @@
-<script lang="typescript" context="module">
-    export type Buttons =
-        | { component: SvelteComponent; [...arg: string]: unknown }
-        | Buttons[];
-</script>
-
 <script lang="typescript">
+    import type { Buttons } from "./types";
+
     export let buttons: Buttons;
 </script>
 

ts/editor-toolbar/ColorPicker.svelte

@@ -1,15 +1,14 @@
 <script lang="typescript">
-    export let className: string;
+    export let id = "";
+    export let className = "";
+    export let props: Record<string, string> = {};
+
     export let onChange: (event: ChangeEvent) => void;
 </script>
 
 <style lang="scss">
     button {
         display: inline-block;
-        vertical-align: middle;
-        width: 28px;
-        height: 28px;
-
         padding: 0;
 
         &:hover {
@@ -24,19 +23,23 @@
 
     span {
         display: inline-block;
+        vertical-align: middle;
         width: 100%;
         height: 100%;
+
         cursor: pointer;
     }
 
     input {
+        display: inline-block;
         opacity: 0;
-        width: 100%;
-        height: 100%;
+        width: 28px;
+        height: calc(28px - 4px);
+
         cursor: pointer;
     }
 </style>
 
-<button tabindex="-1" on:mousedown|preventDefault> 
-    <span class={className}> <input type="color" on:change={onChange} /> </span>
+<button tabindex="-1" {id} class={className} {...props} on:mousedown|preventDefault>
+    <span> <input type="color" on:change={onChange} /> </span>
 </button>

ts/editor-toolbar/CommandIconButton.svelte

@@ -34,9 +34,12 @@
 </script>
 
 <script lang="typescript">
-    import InnerButton from "./InnerButton.svelte";
+    import SquareButton from "./SquareButton.svelte";
 
+    export let id = "";
     export let className = "";
+    export let props: Record<string, string> = {};
+
     export let icon = "";
     export let command: string;
     export let activatable = true;
@@ -57,6 +60,6 @@
     }
 </script>
 
-<InnerButton {className} {active} {onClick}>
+<SquareButton {id} {className} {props} {active} {onClick}>
     {@html icon}
-</InnerButton>
+</SquareButton>

ts/editor-toolbar/DropdownIconButton.svelte

@@ -1,25 +0,0 @@
-<script lang="typescript">
-    import { onMount } from "svelte";
-
-    export let buttonId = `dropdownMenuButton123`;
-
-    // ${Math.random().toString(36).substring(2)}`
-    let dropdownButtonRef: HTMLButtonElement;
-
-    onMount(() => {
-        /* Prevent focus on menu activation */
-        const noop = () => {};
-        Object.defineProperty(dropdownButtonRef, 'focus', { value: noop });
-
-        /* Set custom menu without using .dropdown
-         * Rendering the menu here would cause the menu to
-         * be displayed outside of the visible area
-         */
-        const dropdown = new bootstrap.Dropdown(dropdownButtonRef);
-        dropdown._menu = document.getElementById(buttonId);
-    })
-</script>
-
-<button bind:this={dropdownButtonRef} class="dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false" on:mousedown|preventDefault>
-  Dropdown button
-</button>

ts/editor-toolbar/DropdownMenu.svelte

@@ -0,0 +1,40 @@
+<script lang="typescript">
+    import { onMount } from "svelte";
+
+    import type { ButtonDefinition } from "./types";
+
+    export let button: ButtonDefinition;
+    export let menuId: string;
+
+    function extend({ className, props, ...rest }: ButtonDefinition): ButtonDefinition {
+        return {
+            className: `${className} dropdown-toggle`,
+            props: {
+                "data-bs-toggle": "dropdown",
+                "aria-expanded": "false",
+                ...props,
+            },
+            ...rest,
+        };
+    }
+
+    function createDropdown({ detail }: CustomEvent): void {
+        const button: HTMLButtonElement = detail.button;
+
+        /* Prevent focus on menu activation */
+        const noop = () => {};
+        Object.defineProperty(button, "focus", { value: noop });
+
+        /* Set custom menu without using .dropdown
+         * Rendering the menu here would cause the menu to
+         * be displayed outside of the visible area
+         */
+        const dropdown = new bootstrap.Dropdown(button);
+        dropdown._menu = button.getRootNode().getElementById(menuId);
+    }
+</script>
+
+<svelte:component
+    this={button.component}
+    {...extend(button)}
+    on:mount={createDropdown} />

ts/editor-toolbar/EditorToolbar.svelte

@@ -5,7 +5,7 @@
     import { disabledKey, nightModeKey } from "./contextKeys";
 
     import ButtonGroup from "./ButtonGroup.svelte";
-    import type { Buttons } from "./ButtonGroup.svelte";
+    import type { Buttons } from "./types";
 
     export let buttons: Buttons = [];
     export let nightMode: boolean;
@@ -25,7 +25,7 @@
         background: var(--bg-color);
         border-bottom: 1px solid var(--border);
 
-        /* Remove most outer marigns */
+        /* Remove outermost marigns */
         & > :global(ul) {
             & > :global(li:nth-child(1)) {
                 margin-left: 0;

ts/editor-toolbar/IconButton.svelte

@@ -1,11 +1,14 @@
 <script lang="typescript">
-    import InnerButton from "./InnerButton.svelte";
+    import SquareButton from "./SquareButton.svelte";
 
+    export let id = "";
     export let className = "";
+    export let props: Record<string, string> = {};
+
     export let icon = "";
     export let onClick: (event: ClickEvent) => void;
 </script>
 
-<InnerButton {className} {onClick}>
+<SquareButton {id} {className} {props} {onClick}>
     {@html icon}
-</InnerButton>
+</SquareButton>

ts/editor-toolbar/LabelButton.svelte

@@ -1,5 +1,27 @@
 <script lang="typescript">
+    import { onMount, createEventDispatcher, getContext } from "svelte";
+    import type { Readable } from "svelte/store";
+    import { disabledKey } from "./contextKeys";
+
+    export let id = "";
+    export let className = "";
+    export let props: Record<string, string> = {};
+
     export let label: string;
+    export let onClick: (event: ClickEvent) => void;
+
+    let buttonRef: HTMLButtonElement;
+
+    function extendClassName(className: string): string {
+        return `${className} btn btn-secondary`;
+    }
+
+    const dispatch = createEventDispatcher();
+
+    onMount(() => dispatch("mount", { button: buttonRef }));
+
+    const disabledStore = getContext(disabledKey);
+    $: disabled = $disabledStore;
 </script>
 
 <style lang="scss">
@@ -7,15 +29,34 @@
         display: inline-block;
         vertical-align: middle;
         width: auto;
-        height: 26px;
+        height: calc(28px + 2px);
 
         padding: 0 10px;
-        margin: 0 3px;
+
+        border-radius: 0;
+        border-color: var(--faint-border);
 
         &:focus {
             box-shadow: 0 0 12px 4px rgb(255 255 255 / 0.5);
         }
+
+        &[disabled] {
+            opacity: 0.4;
+            cursor: not-allowed;
+
+            border-color: var(--faint-border);
+        }
     }
 </style>
 
-<button class="btn btn-secondary" tabindex="-1" on:click> {label} </button>
+<button
+    bind:this={buttonRef}
+    {disabled}
+    {id}
+    class={extendClassName(className)}
+    {...props}
+    tabindex="-1"
+    on:click={onClick}
+    on:mousedown|preventDefault>
+    {label}
+</button>

ts/editor-toolbar/SquareButton.svelte

@@ -3,31 +3,24 @@
     import type { Readable } from "svelte/store";
     import { disabledKey } from "./contextKeys";
 
-    export let className: string = "";
+    export let id = "";
+    export let className = "";
+    export let props: Record<string, string> = {};
+
     export let onClick: (event: ClickEvent) => void;
     export let active = false;
 
-    const disabledStore = getContext(disabledKey)
+    const disabledStore = getContext(disabledKey);
     $: disabled = $disabledStore;
 </script>
 
 <style lang="scss">
     button {
         display: inline-block;
-        vertical-align: middle;
-        width: 28px;
-        height: 28px;
+        padding: 0;
 
         background-color: white;
 
-        & > :global(svg),
-        & > :global(img) {
-            fill: currentColor;
-            vertical-align: unset;
-            width: 100%;
-            height: 100%;
-        }
-
         &:hover {
             background-color: #eee;
         }
@@ -57,14 +50,38 @@
             }
         }
     }
+
+    span {
+        display: inline-block;
+        vertical-align: middle;
+
+        /* constrain icon */
+        width: 28px;
+        height: 28px;
+
+        & > :global(svg),
+        & > :global(img) {
+            fill: currentColor;
+            vertical-align: unset;
+            width: 100%;
+            height: 100%;
+        }
+    }
+
+    /* for DropdownMenu */
+    :global(.dropdown-toggle)::after {
+        margin-right: 0.25rem;
+    }
 </style>
 
 <button
-    class="p-1 {className}"
+    {id}
+    class={className}
+    {...props}
     class:active
     tabindex="-1"
     {disabled}
     on:click={onClick}
     on:mousedown|preventDefault>
-    <slot />
+    <span class="p-1"><slot /></span>
 </button>

ts/editor-toolbar/color.scss

@@ -7,11 +7,11 @@
 }
 
 .rainbow {
-    background: linear-gradient(217deg, rgba(255, 0, 0, 0.8), rgba(255, 0, 0, 0) 70.71%),
-        linear-gradient(127deg, rgba(0, 255, 0, 0.8), rgba(0, 255, 0, 0) 70.71%),
-        linear-gradient(336deg, rgba(0, 0, 255, 0.8), rgba(0, 0, 255, 0) 70.71%);
-
-    background-clip: content-box;
-    /* Boostrap .rounded has .25rem */
-    border-radius: 0.375rem;
+    background: content-box
+            linear-gradient(217deg, rgba(255, 0, 0, 0.8), rgba(255, 0, 0, 0) 70.71%),
+        content-box
+            linear-gradient(127deg, rgba(0, 255, 0, 0.8), rgba(0, 255, 0, 0) 70.71%),
+        content-box
+            linear-gradient(336deg, rgba(0, 0, 255, 0.8), rgba(0, 0, 255, 0) 70.71%),
+        border-box white;
 }

ts/editor-toolbar/color.ts

@@ -20,12 +20,12 @@ function wrapWithForecolor(color: string): void {
 export const forecolorButton = {
     component: IconButton,
     icon: squareFillIcon,
-    className: "forecolor p-1",
+    className: "forecolor",
     onClick: () => wrapWithForecolor(getForecolor()),
 };
 
 export const colorpickerButton = {
     component: ColorPicker,
-    className: "rainbow p-1",
+    className: "rainbow",
     onChange: ({ currentTarget }) => setForegroundColor(currentTarget.value),
 };

ts/editor-toolbar/index.ts

@@ -6,7 +6,7 @@ import { setupI18n, ModuleName } from "anki/i18n";
 import EditorToolbarSvelte from "./EditorToolbar.svelte";
 
 import LabelButton from "./LabelButton.svelte";
-import DropdownIconButton from "./DropdownIconButton.svelte";
+import DropdownMenu from "./DropdownMenu.svelte";
 
 // @ts-ignore
 export { updateActiveButtons, clearActiveButtons } from "./CommandIconButton.svelte";
@@ -46,8 +46,6 @@ const defaultButtons = [
     ],
     [forecolorButton, colorpickerButton],
     [attachmentButton, recordButton, clozeButton, mathjaxButton, htmlButton],
-    [ { component: DropdownIconButton }],
-
 ];
 
 class EditorToolbar extends HTMLElement {
@@ -57,16 +55,18 @@ class EditorToolbar extends HTMLElement {
     connectedCallback(): void {
         this.disabled = writable(false);
 
-        setupI18n({ modules: [ModuleName.STATISTICS, ModuleName.SCHEDULING] }).then(() => {
-            this.component = new EditorToolbarSvelte({
-                target: this,
-                props: {
-                    buttons: defaultButtons,
-                    nightMode: checkNightMode(),
-                    disabled: this.disabled,
-                },
-            });
-        })
+        setupI18n({ modules: [ModuleName.STATISTICS, ModuleName.SCHEDULING] }).then(
+            () => {
+                this.component = new EditorToolbarSvelte({
+                    target: this,
+                    props: {
+                        buttons: defaultButtons,
+                        nightMode: checkNightMode(),
+                        disabled: this.disabled,
+                    },
+                });
+            }
+        );
     }
 
     enableButtons(): void {

ts/editor-toolbar/types.ts

@@ -0,0 +1,12 @@
+import type { SvelteComponent } from "svelte/internal";
+
+export interface ButtonDefinition {
+    component: SvelteComponent;
+    id?: string;
+    className?: string;
+    props?: Record<string, string>;
+    button: HTMLButtonElement;
+    [arg: string]: unknown;
+}
+
+export type Buttons = ButtonDefinition | Buttons[];