Simplify NoteEditor by replacing Pane components with Collapsible (#2395)

* Remove Pane components and use Collapsible for TagEditor

* Update translations

* Give TagEditor border and focus outline

* Use ScrollArea from #2248 for fields

* Refactor ScrollArea

* Fix error caused by calling bridgeCommand when it's not available

* Make sure tag editor fills whole width of container

which is important for the CSV import page.

* Update NoteEditor.svelte

* Add back removed ftl strings

* Fix tests (dae)

ftl/core/editing.ftl

@@ -56,6 +56,8 @@ editing-to-make-a-cloze-deletion-on = To make a cloze deletion on an existing no
 editing-toggle-html-editor = Toggle HTML Editor
 editing-toggle-visual-editor = Toggle Visual Editor
 editing-toggle-sticky = Toggle sticky
+editing-expand = Expand
+editing-collapse = Collapse
 editing-expand-field = Expand field
 editing-collapse-field = Collapse field
 editing-underline-text = Underline text

qt/aqt/editor.py

@@ -465,6 +465,11 @@ require("anki/ui").loaded.then(() => require("anki/NoteEditor").instances[0].too
             if not self.addMode:
                 self._save_current_note()
 
+        elif cmd.startswith("setTagsCollapsed"):
+            (type, collapsed_string) = cmd.split(":", 1)
+            collapsed = collapsed_string == "true"
+            self.setTagsCollapsed(collapsed)
+
         elif cmd in self._links:
             return self._links[cmd](self)
 
@@ -1165,11 +1170,8 @@ require("anki/ui").loaded.then(() => require("anki/NoteEditor").instances[0].too
             not self.mw.col.get_config("closeHTMLTags", True),
         )
 
-    def collapseTags(self) -> None:
-        aqt.mw.pm.set_tags_collapsed(self.editorMode, True)
-
-    def expandTags(self) -> None:
-        aqt.mw.pm.set_tags_collapsed(self.editorMode, False)
+    def setTagsCollapsed(self, collapsed: bool) -> None:
+        aqt.mw.pm.set_tags_collapsed(self.editorMode, collapsed)
 
     # Links from HTML
     ######################################################################
@@ -1200,8 +1202,6 @@ require("anki/ui").loaded.then(() => require("anki/NoteEditor").instances[0].too
             toggleMathjax=Editor.toggleMathjax,
             toggleShrinkImages=Editor.toggleShrinkImages,
             toggleCloseHTMLTags=Editor.toggleCloseHTMLTags,
-            expandTags=Editor.expandTags,
-            collapseTags=Editor.collapseTags,
         )
 
 

ts/components/HorizontalResizer.svelte

@@ -1,149 +0,0 @@
-<!--
-Copyright: Ankitects Pty Ltd and contributors
-License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
--->
-<script lang="ts">
-    import { on } from "@tslib/events";
-    import type { Callback } from "@tslib/typing";
-    import { singleCallback } from "@tslib/typing";
-    import { createEventDispatcher } from "svelte";
-    import { fly } from "svelte/transition";
-
-    import IconConstrain from "./IconConstrain.svelte";
-    import { horizontalHandle } from "./icons";
-    import type { ResizablePane } from "./types";
-
-    export let panes: ResizablePane[];
-    export let index = 0;
-    export let tip = "";
-    export let showIndicator = false;
-    export let clientHeight: number;
-
-    const rtl = window.getComputedStyle(document.body).direction == "rtl";
-
-    const dispatch = createEventDispatcher();
-
-    let destroy: Callback;
-
-    let before: ResizablePane;
-    let after: ResizablePane;
-
-    $: resizerAmount = panes.length - 1;
-    $: componentsHeight = clientHeight - resizerHeight * resizerAmount;
-
-    export function move(targets: ResizablePane[], targetHeight: number): void {
-        const [resizeTarget, resizePartner] = targets;
-        if (targetHeight <= resizeTarget.maxHeight) {
-            resizeTarget.resizable.getHeightResizer().setSize(targetHeight);
-            resizePartner.resizable
-                .getHeightResizer()
-                .setSize(componentsHeight - targetHeight);
-        }
-    }
-
-    function onMove(this: Window, { movementY }: PointerEvent): void {
-        if (movementY < 0) {
-            if (after.height - movementY <= after.maxHeight) {
-                const resized = before.resizable.getHeightResizer().resize(movementY);
-                after.resizable.getHeightResizer().resize(-resized);
-            } else {
-                const resized = before.resizable
-                    .getHeightResizer()
-                    .resize(after.height - after.maxHeight);
-                after.resizable.getHeightResizer().resize(-resized);
-            }
-        } else if (before.height + movementY <= before.maxHeight) {
-            const resized = after.resizable.getHeightResizer().resize(-movementY);
-            before.resizable.getHeightResizer().resize(-resized);
-        } else {
-            const resized = after.resizable
-                .getHeightResizer()
-                .resize(before.height - before.maxHeight);
-            before.resizable.getHeightResizer().resize(-resized);
-        }
-    }
-
-    let resizerHeight: number;
-
-    function releasePointer(this: Window): void {
-        destroy();
-        document.exitPointerLock();
-
-        for (const pane of panes) {
-            pane.resizable.getHeightResizer().stop(componentsHeight, panes.length);
-        }
-    }
-
-    function lockPointer(this: HTMLDivElement) {
-        this.requestPointerLock();
-
-        before = panes[index];
-        after = panes[index + 1];
-
-        for (const pane of panes) {
-            pane.resizable.getHeightResizer().start();
-        }
-
-        destroy = singleCallback(
-            on(window, "pointermove", onMove),
-            on(window, "pointerup", () => {
-                releasePointer.call(window);
-                dispatch("release");
-            }),
-        );
-    }
-</script>
-
-<div
-    class="horizontal-resizer"
-    class:rtl
-    title={tip}
-    bind:clientHeight={resizerHeight}
-    on:pointerdown|preventDefault={lockPointer}
-    on:dblclick|preventDefault
->
-    {#if showIndicator}
-        <div
-            class="resize-indicator"
-            transition:fly={{ x: rtl ? 25 : -25, duration: 200 }}
-        >
-            <slot />
-        </div>
-    {/if}
-
-    <div class="drag-handle">
-        <IconConstrain iconSize={80}>{@html horizontalHandle}</IconConstrain>
-    </div>
-</div>
-
-<style lang="scss">
-    .horizontal-resizer {
-        width: 100%;
-        cursor: row-resize;
-        position: relative;
-        height: 25px;
-        border-top: 1px solid var(--border);
-
-        z-index: 20;
-        .drag-handle {
-            position: absolute;
-            left: 50%;
-            top: 50%;
-            transform: translate(-50%, -50%);
-            opacity: 0.4;
-        }
-        &:hover .drag-handle {
-            opacity: 0.8;
-        }
-
-        .resize-indicator {
-            position: absolute;
-            font-size: small;
-            bottom: 0;
-        }
-        &.rtl .resize-indicator {
-            padding: 0.5rem 0 0 0.5rem;
-            right: 0;
-        }
-    }
-</style>

ts/components/Pane.svelte

@@ -1,65 +0,0 @@
-<!--
-Copyright: Ankitects Pty Ltd and contributors
-License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
--->
-<script lang="ts">
-    import { createEventDispatcher } from "svelte";
-    import { writable } from "svelte/store";
-
-    import type { Resizer } from "./resizable";
-    import { resizable } from "./resizable";
-
-    export let baseSize = 600;
-
-    const resizes = writable(false);
-    const paneSize = writable(baseSize);
-
-    const [
-        { resizesDimension: resizesWidth, resizedDimension: resizedWidth },
-        widthAction,
-        widthResizer,
-    ] = resizable(baseSize, resizes, paneSize);
-    const [
-        { resizesDimension: resizesHeight, resizedDimension: resizedHeight },
-        heightAction,
-        heightResizer,
-    ] = resizable(baseSize, resizes, paneSize);
-
-    const dispatch = createEventDispatcher();
-
-    $: resizeArgs = { width: $resizedWidth, height: $resizedHeight };
-    $: dispatch("resize", resizeArgs);
-
-    export function getHeightResizer(): Resizer {
-        return heightResizer;
-    }
-
-    export function getWidthResizer(): Resizer {
-        return widthResizer;
-    }
-</script>
-
-<div
-    class="pane"
-    class:resize={$resizes}
-    class:resize-width={$resizesWidth}
-    class:resize-height={$resizesHeight}
-    style:--pane-size={$paneSize}
-    style:--resized-width="{$resizedWidth}px"
-    style:--resized-height="{$resizedHeight}px"
-    on:focusin
-    on:pointerdown
-    use:widthAction={(element) => element.offsetWidth}
-    use:heightAction={(element) => element.offsetHeight}
->
-    <slot />
-</div>
-
-<style lang="scss">
-    @use "sass/panes" as panes;
-
-    .pane {
-        @include panes.resizable(column, true, true);
-        opacity: var(--opacity, 1);
-    }
-</style>

ts/components/PaneContent.svelte

@@ -1,81 +0,0 @@
-<!--
-Copyright: Ankitects Pty Ltd and contributors
-License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
--->
-<script lang="ts">
-    import { promiseWithResolver } from "@tslib/promise";
-
-    export let scroll = true;
-    const [element, elementResolve] = promiseWithResolver<HTMLElement>();
-
-    let clientWidth = 0;
-    let clientHeight = 0;
-    let scrollWidth = 0;
-    let scrollHeight = 0;
-    let scrollTop = 0;
-    let scrollLeft = 0;
-
-    $: overflowTop = scrollTop > 0;
-    $: overflowBottom = scrollTop < scrollHeight - clientHeight;
-    $: overflowLeft = scrollLeft > 0;
-    $: overflowRight = scrollLeft < scrollWidth - clientWidth;
-
-    $: shadows = {
-        top: overflowTop ? "0 5px" : null,
-        bottom: overflowBottom ? "0 -5px" : null,
-        left: overflowLeft ? "5px 0" : null,
-        right: overflowRight ? "-5px 0" : null,
-    };
-    const rest = "5px -5px var(--shadow)";
-
-    $: shadow = Array.from(
-        Object.values(shadows).filter((v) => v != null),
-        (v) => `inset ${v} ${rest}`,
-    ).join(", ");
-
-    async function updateScrollState(): Promise<void> {
-        const el = await element;
-        scrollHeight = el.scrollHeight;
-        scrollWidth = el.scrollWidth;
-        scrollTop = el.scrollTop;
-        scrollLeft = el.scrollLeft;
-    }
-</script>
-
-<div
-    class="pane-content"
-    class:scroll
-    style:--box-shadow={shadow}
-    style:--client-height="{clientHeight}px"
-    use:elementResolve
-    bind:clientHeight
-    bind:clientWidth
-    on:scroll={updateScrollState}
-    on:resize={updateScrollState}
->
-    <slot />
-</div>
-
-<style lang="scss">
-    .pane-content {
-        display: flex;
-        flex-direction: column;
-        flex-grow: 1;
-        overflow: hidden;
-        &.scroll {
-            overflow: auto;
-        }
-        /* force box-shadow to be rendered above children */
-        &::before {
-            content: "";
-            position: fixed;
-            pointer-events: none;
-            left: 0;
-            right: 0;
-            z-index: 4;
-            height: var(--client-height);
-            box-shadow: var(--box-shadow);
-            transition: box-shadow var(--transition) ease-in-out;
-        }
-    }
-</style>

ts/components/ScrollArea.svelte

@@ -0,0 +1,147 @@
+<!--
+Copyright: Ankitects Pty Ltd and contributors
+License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
+-->
+<script lang="ts">
+    let className: string = "";
+    export { className as class };
+    export let scrollX = false;
+    export let scrollY = false;
+    let scrollBarWidth = 0;
+    let scrollBarHeight = 0;
+    let measuring = true;
+
+    const scrollStates = {
+        top: false,
+        right: false,
+        bottom: false,
+        left: false,
+    };
+
+    function measureScrollbar(el: HTMLDivElement) {
+        scrollBarWidth = el.offsetWidth - el.clientWidth;
+        scrollBarHeight = el.offsetHeight - el.clientHeight;
+        measuring = false;
+    }
+
+    const callback = (entries: IntersectionObserverEntry[]) => {
+        entries.forEach((entry) => {
+            scrollStates[entry.target.getAttribute("data-edge")!] =
+                !entry.isIntersecting;
+        });
+    };
+
+    let observer: IntersectionObserver;
+    function initObserver(el: HTMLDivElement) {
+        observer = new IntersectionObserver(callback, { root: el });
+        for (const edge of el.getElementsByClassName("scroll-edge")) {
+            observer.observe(edge);
+        }
+    }
+</script>
+
+<div class="scroll-area-relative">
+    <div class="scroll-area-wrapper {className}">
+        <div
+            class="scroll-area"
+            class:measuring
+            class:scroll-x={scrollX}
+            class:scroll-y={scrollY}
+            style:--scrollbar-height="{scrollBarHeight}px"
+            use:measureScrollbar
+            use:initObserver
+        >
+            <div class="d-flex flex-column flex-grow-1">
+                <div class="scroll-edge" data-edge="top" />
+                <div class="d-flex flex-row flex-grow-1">
+                    <div class="scroll-edge" data-edge="left" />
+                    <div class="scroll-content flex-grow-1">
+                        <slot />
+                    </div>
+                    <div class="scroll-edge" data-edge="right" />
+                </div>
+                <div class="scroll-edge" data-edge="bottom" />
+            </div>
+        </div>
+
+        {#if scrollStates.top} <div class="scroll-shadow top-0" /> {/if}
+        {#if scrollStates.bottom} <div class="scroll-shadow bottom-0" /> {/if}
+        {#if scrollStates.left} <div class="scroll-shadow start-0" /> {/if}
+        {#if scrollStates.right} <div class="scroll-shadow end-0" /> {/if}
+    </div>
+</div>
+
+<style lang="scss">
+    $shadow-top: inset 0 5px 5px -5px var(--shadow);
+    $shadow-bottom: inset 0 -5px 5px -5px var(--shadow);
+    $shadow-left: inset 5px 0 5px -5px var(--shadow);
+    $shadow-right: inset -5px 0 5px -5px var(--shadow);
+    .scroll-area-relative {
+        height: calc(var(--height) + var(--scrollbar-height));
+        flex-grow: 1;
+        position: relative;
+    }
+    .scroll-area {
+        position: absolute;
+        height: 100%;
+        width: 100%;
+        display: flex;
+        flex-direction: column;
+        overscroll-behavior: none;
+        overflow: auto;
+        &.scroll-x {
+            overflow-x: auto;
+            overflow-y: hidden;
+            overscroll-behavior-y: auto;
+        }
+        &.scroll-y {
+            overflow-y: auto;
+            overflow-x: hidden;
+            overscroll-behavior-x: none;
+        }
+        &.measuring {
+            visibility: hidden;
+            overflow: scroll;
+        }
+    }
+    .scroll-edge {
+        &[data-edge="top"],
+        &[data-edge="bottom"] {
+            height: 1px;
+        }
+        &[data-edge="left"],
+        &[data-edge="right"] {
+            width: 1px;
+        }
+    }
+    .scroll-shadow {
+        position: absolute;
+        pointer-events: none;
+        // z-index between LabelContainer (editor) and FloatingArrow
+        z-index: 55;
+        &.top-0,
+        &.bottom-0 {
+            left: 0;
+            right: 0;
+            height: 5px;
+        }
+        &.start-0,
+        &.end-0 {
+            top: 0;
+            bottom: 0;
+            width: 5px;
+        }
+        &.top-0 {
+            box-shadow: $shadow-top;
+        }
+        &.bottom-0 {
+            box-shadow: $shadow-bottom;
+        }
+        &.start-0 {
+            box-shadow: $shadow-left;
+        }
+        &.end-0 {
+            box-shadow: $shadow-right;
+        }
+    }
+</style>

ts/components/VerticalResizer.svelte

@@ -1,103 +0,0 @@
-<!--
-Copyright: Ankitects Pty Ltd and contributors
-License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
--->
-<script lang="ts">
-    import { on } from "@tslib/events";
-    import type { Callback } from "@tslib/typing";
-    import { singleCallback } from "@tslib/typing";
-
-    import IconConstrain from "./IconConstrain.svelte";
-    import { verticalHandle } from "./icons";
-    import type { ResizablePane } from "./types";
-
-    export let components: ResizablePane[];
-    export let index = 0;
-    export let clientWidth: number;
-
-    let destroy: Callback;
-
-    let before: ResizablePane;
-    let after: ResizablePane;
-
-    function onMove(this: Window, { movementX }: PointerEvent): void {
-        if (movementX < 0) {
-            const resized = before.resizable.getWidthResizer().resize(movementX);
-            after.resizable.getWidthResizer().resize(-resized);
-        } else if (movementX > 0) {
-            const resized = after.resizable.getWidthResizer().resize(-movementX);
-            before.resizable.getWidthResizer().resize(-resized);
-        }
-    }
-
-    let minWidth: number;
-
-    function releasePointer(this: Window): void {
-        destroy();
-        document.exitPointerLock();
-
-        const resizerAmount = components.length - 1;
-        const componentsWidth = clientWidth - minWidth * resizerAmount;
-
-        for (const component of components) {
-            component.resizable
-                .getWidthResizer()
-                .stop(componentsWidth, components.length);
-        }
-    }
-
-    function lockPointer(this: HTMLHRElement) {
-        this.requestPointerLock();
-
-        before = components[index];
-        after = components[index + 1];
-
-        for (const component of components) {
-            component.resizable.getWidthResizer().start();
-        }
-
-        destroy = singleCallback(
-            on(window, "pointermove", onMove),
-            on(window, "pointerup", releasePointer),
-        );
-    }
-</script>
-
-<div
-    bind:clientWidth={minWidth}
-    class="vertical-resizer"
-    on:pointerdown|preventDefault={lockPointer}
->
-    <div class="drag-handle">
-        <IconConstrain iconSize={80}>{@html verticalHandle}</IconConstrain>
-    </div>
-</div>
-
-<style lang="scss">
-    .vertical-resizer {
-        height: 100%;
-        cursor: col-resize;
-        position: relative;
-
-        z-index: 20;
-        .drag-handle {
-            position: absolute;
-            top: 50%;
-            left: 50%;
-            transform: translate(-50%, -50%);
-            opacity: 0.4;
-        }
-
-        &::before {
-            content: "";
-            position: absolute;
-            width: 10px;
-            left: -5px;
-            top: 0;
-            height: 100%;
-        }
-        &:hover .drag-handle {
-            opacity: 0.8;
-        }
-    }
-</style>

ts/editor/CollapseBadge.svelte

@@ -7,10 +7,9 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     import { chevronDown } from "./icons";
 
     export let collapsed = false;
-    export let highlighted = false;
 </script>
 
-<div class="collapse-badge" class:collapsed class:highlighted>
+<div class="collapse-badge" class:collapsed>
     <Badge iconSize={80}>{@html chevronDown}</Badge>
 </div>
 
@@ -20,7 +19,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         opacity: 0.4;
         transition: opacity var(--transition) ease-in-out,
             transform var(--transition) ease-in;
-        &.highlighted {
+        :global(.collapse-label:hover) & {
             opacity: 1;
         }
         &.collapsed {

ts/editor/CollapseLabel.svelte

@@ -0,0 +1,29 @@
+<!--
+Copyright: Ankitects Pty Ltd and contributors
+License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
+-->
+<script lang="ts">
+    import { createEventDispatcher } from "svelte";
+
+    import CollapseBadge from "./CollapseBadge.svelte";
+
+    export let collapsed: boolean;
+    export let tooltip: string;
+
+    const dispatch = createEventDispatcher();
+
+    function toggle() {
+        dispatch("toggle");
+    }
+</script>
+
+<span class="collapse-label" title={tooltip} on:click|stopPropagation={toggle}>
+    <CollapseBadge {collapsed} />
+    <slot />
+</span>
+
+<style lang="scss">
+    .collapse-label {
+        cursor: pointer;
+    }
+</style>

ts/editor/EditorField.svelte

@@ -132,7 +132,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         /* make room for thicker focus border */
         margin: 1px;
 
-        border-radius: 5px;
+        border-radius: var(--border-radius);
         border: 1px solid var(--border);
 
         @include elevation(1);

ts/editor/Fields.svelte

@@ -2,13 +2,19 @@
 Copyright: Ankitects Pty Ltd and contributors
 License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 -->
+<script lang="ts">
+    import ScrollArea from "components/ScrollArea.svelte";
+</script>
+
 <!--
 @component
 Contains the fields. This contains the scrollable area.
 -->
-<div class="fields">
-    <slot />
-</div>
+<ScrollArea>
+    <div class="fields">
+        <slot />
+    </div>
+</ScrollArea>
 
 <style lang="scss">
     .fields {

ts/editor/LabelContainer.svelte

@@ -4,33 +4,18 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 -->
 <script lang="ts">
     import * as tr from "@tslib/ftl";
-    import { createEventDispatcher } from "svelte";
 
-    import CollapseBadge from "./CollapseBadge.svelte";
+    import CollapseLabel from "./CollapseLabel.svelte";
 
     export let collapsed: boolean;
-    let hovered = false;
 
     $: tooltip = collapsed ? tr.editingExpandField() : tr.editingCollapseField();
-
-    const dispatch = createEventDispatcher();
-
-    function toggle() {
-        dispatch("toggle");
-    }
 </script>
 
 <div class="label-container">
-    <span
-        class="clickable"
-        title={tooltip}
-        on:click|stopPropagation={toggle}
-        on:mouseenter={() => (hovered = true)}
-        on:mouseleave={() => (hovered = false)}
-    >
-        <CollapseBadge {collapsed} highlighted={hovered} />
+    <CollapseLabel {collapsed} {tooltip} on:toggle>
         <slot name="field-name" />
-    </span>
+    </CollapseLabel>
     <slot />
 </div>
 
@@ -46,9 +31,5 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
         position: sticky;
         top: 0;
         z-index: 50;
-
-        .clickable {
-            cursor: pointer;
-        }
     }
 </style>

ts/editor/NoteEditor.svelte

@@ -47,12 +47,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
     import Absolute from "../components/Absolute.svelte";
     import Badge from "../components/Badge.svelte";
-    import HorizontalResizer from "../components/HorizontalResizer.svelte";
-    import Pane from "../components/Pane.svelte";
-    import PaneContent from "../components/PaneContent.svelte";
-    import { ResizablePane } from "../components/types";
     import { TagEditor } from "../tag-editor";
-    import TagAddButton from "../tag-editor/tag-options-button/TagAddButton.svelte";
     import { ChangeTimer } from "./change-timer";
     import { clearableArray } from "./destroyable";
     import DuplicateLink from "./DuplicateLink.svelte";
@@ -197,9 +192,11 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     const tagsCollapsed = writable<boolean>();
     export function setTagsCollapsed(collapsed: boolean): void {
         $tagsCollapsed = collapsed;
-        if (collapsed) {
-            lowerResizer.move([tagsPane, fieldsPane], tagsPane.minHeight);
-        }
+    }
+
+    function updateTagsCollapsed(collapsed: boolean) {
+        $tagsCollapsed = collapsed;
+        bridgeCommand(`setTagsCollapsed:${$tagsCollapsed}`);
     }
 
     let noteId: number | null = null;
@@ -312,8 +309,10 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     }
 
     import { wrapInternal } from "@tslib/wrap";
+    import Shortcut from "components/Shortcut.svelte";
 
     import { mathjaxConfig } from "../editable/mathjax-element";
+    import CollapseLabel from "./CollapseLabel.svelte";
     import { refocusInput } from "./helpers";
     import * as oldEditorAdapter from "./old-editor-adapter";
 
@@ -376,39 +375,7 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     setContextProperty(api);
     setupLifecycleHooks(api);
 
-    let clientHeight: number;
-
-    const fieldsPane = new ResizablePane();
-    const tagsPane = new ResizablePane();
-
-    let lowerResizer: HorizontalResizer;
-    let tagEditor: TagEditor;
-
     $: tagAmount = $tags.length;
-
-    let snapTags = $tagsCollapsed;
-
-    function collapseTags(): void {
-        lowerResizer.move([tagsPane, fieldsPane], tagsPane.minHeight);
-        $tagsCollapsed = snapTags = true;
-    }
-
-    function expandTags(): void {
-        lowerResizer.move([tagsPane, fieldsPane], tagsPane.maxHeight);
-        $tagsCollapsed = snapTags = false;
-    }
-
-    window.addEventListener("resize", () => snapResizer(snapTags));
-
-    function snapResizer(collapse: boolean): void {
-        if (collapse) {
-            collapseTags();
-            bridgeCommand("collapseTags");
-        } else {
-            expandTags();
-            bridgeCommand("expandTags");
-        }
-    }
 </script>
 
 <!--
@@ -419,7 +386,7 @@ components and functionality for general note editing.
 Functionality exclusive to specific note-editing views (e.g. in the browser or
 the AddCards dialog) should be implemented in the user of this component.
 -->
-<div class="note-editor" bind:clientHeight>
+<div class="note-editor">
     <EditorToolbar {size} {wrap} api={toolbar}>
         <slot slot="notetypeButtons" name="notetypeButtons" />
     </EditorToolbar>
@@ -435,223 +402,166 @@ the AddCards dialog) should be implemented in the user of this component.
         </Absolute>
     {/if}
 
-    <Pane
-        bind:this={fieldsPane.resizable}
-        on:resize={(e) => {
-            fieldsPane.height = e.detail.height;
-        }}
-    >
-        <PaneContent>
-            <Fields>
-                {#each fieldsData as field, index}
-                    {@const content = fieldStores[index]}
+    <Fields>
+        {#each fieldsData as field, index}
+            {@const content = fieldStores[index]}
 
-                    <EditorField
-                        {field}
-                        {content}
-                        flipInputs={plainTextDefaults[index]}
-                        api={fields[index]}
-                        on:focusin={() => {
-                            $focusedField = fields[index];
-                            bridgeCommand(`focus:${index}`);
-                        }}
-                        on:focusout={() => {
-                            $focusedField = null;
-                            bridgeCommand(
-                                `blur:${index}:${getNoteId()}:${transformContentBeforeSave(
-                                    get(content),
-                                )}`,
-                            );
-                        }}
-                        on:mouseenter={() => {
-                            $hoveredField = fields[index];
-                        }}
-                        on:mouseleave={() => {
-                            $hoveredField = null;
-                        }}
-                        collapsed={fieldsCollapsed[index]}
-                        dupe={cols[index] === "dupe"}
-                        --description-font-size="{field.fontSize}px"
-                        --description-content={`"${field.description}"`}
-                    >
-                        <svelte:fragment slot="field-label">
-                            <LabelContainer
-                                collapsed={fieldsCollapsed[index]}
-                                on:toggle={async () => {
-                                    fieldsCollapsed[index] = !fieldsCollapsed[index];
-
-                                    const defaultInput = !plainTextDefaults[index]
-                                        ? richTextInputs[index]
-                                        : plainTextInputs[index];
-
-                                    if (!fieldsCollapsed[index]) {
-                                        refocusInput(defaultInput.api);
-                                    } else if (!plainTextDefaults[index]) {
-                                        plainTextsHidden[index] = true;
-                                    } else {
-                                        richTextsHidden[index] = true;
-                                    }
-                                }}
-                                --icon-align="bottom"
-                            >
-                                <svelte:fragment slot="field-name">
-                                    <LabelName>
-                                        {field.name}
-                                    </LabelName>
-                                </svelte:fragment>
-                                <FieldState>
-                                    {#if cols[index] === "dupe"}
-                                        <DuplicateLink />
-                                    {/if}
-                                    {#if plainTextDefaults[index]}
-                                        <RichTextBadge
-                                            show={!fieldsCollapsed[index] &&
-                                                (fields[index] === $hoveredField ||
-                                                    fields[index] === $focusedField)}
-                                            bind:off={richTextsHidden[index]}
-                                            on:toggle={async () => {
-                                                richTextsHidden[index] =
-                                                    !richTextsHidden[index];
-
-                                                if (!richTextsHidden[index]) {
-                                                    refocusInput(
-                                                        richTextInputs[index].api,
-                                                    );
-                                                }
-                                            }}
-                                        />
-                                    {:else}
-                                        <PlainTextBadge
-                                            show={!fieldsCollapsed[index] &&
-                                                (fields[index] === $hoveredField ||
-                                                    fields[index] === $focusedField)}
-                                            bind:off={plainTextsHidden[index]}
-                                            on:toggle={async () => {
-                                                plainTextsHidden[index] =
-                                                    !plainTextsHidden[index];
-
-                                                if (!plainTextsHidden[index]) {
-                                                    refocusInput(
-                                                        plainTextInputs[index].api,
-                                                    );
-                                                }
-                                            }}
-                                        />
-                                    {/if}
-                                    <slot
-                                        name="field-state"
-                                        {field}
-                                        {index}
-                                        show={fields[index] === $hoveredField ||
-                                            fields[index] === $focusedField}
-                                    />
-                                </FieldState>
-                            </LabelContainer>
-                        </svelte:fragment>
-                        <svelte:fragment slot="rich-text-input">
-                            <Collapsible
-                                collapse={richTextsHidden[index]}
-                                let:collapsed={hidden}
-                                toggleDisplay
-                            >
-                                <RichTextInput
-                                    {hidden}
-                                    on:focusout={() => {
-                                        saveFieldNow();
-                                        $focusedInput = null;
-                                    }}
-                                    bind:this={richTextInputs[index]}
-                                />
-                            </Collapsible>
-                        </svelte:fragment>
-                        <svelte:fragment slot="plain-text-input">
-                            <Collapsible
-                                collapse={plainTextsHidden[index]}
-                                let:collapsed={hidden}
-                                toggleDisplay
-                            >
-                                <PlainTextInput
-                                    {hidden}
-                                    on:focusout={() => {
-                                        saveFieldNow();
-                                        $focusedInput = null;
-                                    }}
-                                    bind:this={plainTextInputs[index]}
-                                />
-                            </Collapsible>
-                        </svelte:fragment>
-                    </EditorField>
-                {/each}
-
-                <MathjaxOverlay />
-                <ImageOverlay maxWidth={250} maxHeight={125} />
-                {#if insertSymbols}
-                    <SymbolsOverlay />
-                {/if}
-            </Fields>
-        </PaneContent>
-    </Pane>
-
-    <HorizontalResizer
-        panes={[fieldsPane, tagsPane]}
-        showIndicator={$tagsCollapsed || snapTags}
-        tip={$tagsCollapsed
-            ? tr.editingDoubleClickToExpand()
-            : tr.editingDoubleClickToCollapse()}
-        {clientHeight}
-        bind:this={lowerResizer}
-        on:dblclick={() => snapResizer(!$tagsCollapsed)}
-        on:release={() => {
-            snapResizer(snapTags);
-        }}
-    >
-        <div class="tags-expander">
-            <TagAddButton
-                on:tagappend={() => {
-                    tagEditor.appendEmptyTag();
+            <EditorField
+                {field}
+                {content}
+                flipInputs={plainTextDefaults[index]}
+                api={fields[index]}
+                on:focusin={() => {
+                    $focusedField = fields[index];
+                    bridgeCommand(`focus:${index}`);
                 }}
-                keyCombination="Control+Shift+T"
+                on:focusout={() => {
+                    $focusedField = null;
+                    bridgeCommand(
+                        `blur:${index}:${getNoteId()}:${transformContentBeforeSave(
+                            get(content),
+                        )}`,
+                    );
+                }}
+                on:mouseenter={() => {
+                    $hoveredField = fields[index];
+                }}
+                on:mouseleave={() => {
+                    $hoveredField = null;
+                }}
+                collapsed={fieldsCollapsed[index]}
+                dupe={cols[index] === "dupe"}
+                --description-font-size="{field.fontSize}px"
+                --description-content={`"${field.description}"`}
             >
-                {@html tagAmount > 0 ? `${tagAmount} ${tr.editingTags()}` : ""}
-            </TagAddButton>
-        </div>
-    </HorizontalResizer>
+                <svelte:fragment slot="field-label">
+                    <LabelContainer
+                        collapsed={fieldsCollapsed[index]}
+                        on:toggle={async () => {
+                            fieldsCollapsed[index] = !fieldsCollapsed[index];
 
-    <Pane
-        bind:this={tagsPane.resizable}
-        on:resize={(e) => {
-            tagsPane.height = e.detail.height;
-            if (tagsPane.maxHeight > 0) {
-                snapTags = tagsPane.height < tagsPane.maxHeight / 2;
-            }
+                            const defaultInput = !plainTextDefaults[index]
+                                ? richTextInputs[index]
+                                : plainTextInputs[index];
+
+                            if (!fieldsCollapsed[index]) {
+                                refocusInput(defaultInput.api);
+                            } else if (!plainTextDefaults[index]) {
+                                plainTextsHidden[index] = true;
+                            } else {
+                                richTextsHidden[index] = true;
+                            }
+                        }}
+                        --icon-align="bottom"
+                    >
+                        <svelte:fragment slot="field-name">
+                            <LabelName>
+                                {field.name}
+                            </LabelName>
+                        </svelte:fragment>
+                        <FieldState>
+                            {#if cols[index] === "dupe"}
+                                <DuplicateLink />
+                            {/if}
+                            {#if plainTextDefaults[index]}
+                                <RichTextBadge
+                                    show={!fieldsCollapsed[index] &&
+                                        (fields[index] === $hoveredField ||
+                                            fields[index] === $focusedField)}
+                                    bind:off={richTextsHidden[index]}
+                                    on:toggle={async () => {
+                                        richTextsHidden[index] =
+                                            !richTextsHidden[index];
+
+                                        if (!richTextsHidden[index]) {
+                                            refocusInput(richTextInputs[index].api);
+                                        }
+                                    }}
+                                />
+                            {:else}
+                                <PlainTextBadge
+                                    show={!fieldsCollapsed[index] &&
+                                        (fields[index] === $hoveredField ||
+                                            fields[index] === $focusedField)}
+                                    bind:off={plainTextsHidden[index]}
+                                    on:toggle={async () => {
+                                        plainTextsHidden[index] =
+                                            !plainTextsHidden[index];
+
+                                        if (!plainTextsHidden[index]) {
+                                            refocusInput(plainTextInputs[index].api);
+                                        }
+                                    }}
+                                />
+                            {/if}
+                            <slot
+                                name="field-state"
+                                {field}
+                                {index}
+                                show={fields[index] === $hoveredField ||
+                                    fields[index] === $focusedField}
+                            />
+                        </FieldState>
+                    </LabelContainer>
+                </svelte:fragment>
+                <svelte:fragment slot="rich-text-input">
+                    <Collapsible
+                        collapse={richTextsHidden[index]}
+                        let:collapsed={hidden}
+                        toggleDisplay
+                    >
+                        <RichTextInput
+                            {hidden}
+                            on:focusout={() => {
+                                saveFieldNow();
+                                $focusedInput = null;
+                            }}
+                            bind:this={richTextInputs[index]}
+                        />
+                    </Collapsible>
+                </svelte:fragment>
+                <svelte:fragment slot="plain-text-input">
+                    <Collapsible
+                        collapse={plainTextsHidden[index]}
+                        let:collapsed={hidden}
+                        toggleDisplay
+                    >
+                        <PlainTextInput
+                            {hidden}
+                            on:focusout={() => {
+                                saveFieldNow();
+                                $focusedInput = null;
+                            }}
+                            bind:this={plainTextInputs[index]}
+                        />
+                    </Collapsible>
+                </svelte:fragment>
+            </EditorField>
+        {/each}
+
+        <MathjaxOverlay />
+        <ImageOverlay maxWidth={250} maxHeight={125} />
+        {#if insertSymbols}
+            <SymbolsOverlay />
+        {/if}
+    </Fields>
+
+    <Shortcut
+        keyCombination="Control+Shift+T"
+        on:action={() => {
+            updateTagsCollapsed(false);
         }}
-        --opacity={(() => {
-            if (!$tagsCollapsed) {
-                return 1;
-            } else {
-                return snapTags ? tagsPane.height / tagsPane.maxHeight : 1;
-            }
-        })()}
+    />
+    <CollapseLabel
+        collapsed={$tagsCollapsed}
+        tooltip={$tagsCollapsed ? tr.editingExpand() : tr.editingCollapse()}
+        on:toggle={() => updateTagsCollapsed(!$tagsCollapsed)}
     >
-        <PaneContent scroll={false}>
-            <TagEditor
-                {tags}
-                --button-opacity={snapTags ? 0 : 1}
-                bind:this={tagEditor}
-                on:tagsupdate={saveTags}
-                on:tagsFocused={() => {
-                    expandTags();
-                    $tagsCollapsed = false;
-                }}
-                on:heightChange={(e) => {
-                    tagsPane.maxHeight = e.detail.height;
-                    if (!$tagsCollapsed) {
-                        expandTags();
-                    }
-                }}
-            />
-        </PaneContent>
-    </Pane>
+        {@html `${tagAmount > 0 ? tagAmount : ""} ${tr.editingTags()}`}
+    </CollapseLabel>
+    <Collapsible toggleDisplay collapse={$tagsCollapsed}>
+        <TagEditor {tags} on:tagsupdate={saveTags} />
+    </Collapsible>
 </div>
 
 <style lang="scss">

ts/tag-editor/TagEditor.svelte

@@ -391,8 +391,6 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
     $: assumedRows = Math.floor(height / badgeHeight);
     $: shortenTags = shortenTags || assumedRows > 2;
     $: anyTagsSelected = tagTypes.some((tag) => tag.selected);
-
-    $: dispatch("heightChange", { height: height + 1 });
 </script>
 
 {#if anyTagsSelected}
@@ -506,11 +504,19 @@ License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 <style lang="scss">
     .tag-editor {
         display: flex;
+        flex-grow: 1;
         flex-flow: row wrap;
         align-items: flex-end;
-        background: var(--canvas-inset);
+        background: var(--canvas-elevated);
+        border: 1px solid var(--border);
         border-radius: var(--border-radius);
         padding: 6px;
+        margin: 1px;
+
+        &:focus-within {
+            outline-offset: -1px;
+            outline: 2px solid var(--border-focus);
+        }
     }
 
     .tag-relative {