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cd6d167f77
refs https://github.com/TryGhost/Team/issues/1219 - added optional `adjustOnResize` argument to `{{movable}}` modifier - when the movable element's size changes (based on a `ResizeObserver` event) the passed in action is called with the element and the current x/y position - having this handled via the `{{movable}}` modifier is needed because that's what knows about any CSS translations that are present and allows the drag position to remain in sync with any resize-related adjustments - return value of the action is expected to be a new `{x, y}` tuple - used `adjustOnResize` in the `<KoenigSettingsPanel>` component so that any time the settings panel grows and causes part of it to be off-screen we re-position so that the whole panel is kept on-screen
94 lines
3.1 KiB
JavaScript
94 lines
3.1 KiB
JavaScript
import Component from '@glimmer/component';
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import {action} from '@ember/object';
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import {bind} from '@ember/runloop';
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import {task} from 'ember-concurrency-decorators';
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import {timeout} from 'ember-concurrency';
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const CARD_SPACING = 20;
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const MIN_RIGHT_SPACING = 20;
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const MIN_TOP_SPACING = 66 + 20; // 66 is publish menu and word count size
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export default class KoenigSettingsPanelComponent extends Component {
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constructor() {
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super(...arguments);
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this._windowResizeHandler = bind(this, this.debounceWindowResizeTask.perform);
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window.addEventListener('resize', this._windowResizeHandler);
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}
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willDestroy() {
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super.willDestroy(...arguments);
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window.removeEventListener('resize', this._windowResizeHandler);
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}
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@action
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registerAndPosition(panelElem) {
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this.panelElem = panelElem;
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this.positionPanel(panelElem);
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}
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@action
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positionPanel(panelElem) {
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if (!panelElem) {
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return;
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}
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const panelRect = panelElem.getBoundingClientRect();
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const containerRect = panelElem.parentElement.getBoundingClientRect();
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const containerMiddle = containerRect.top + (containerRect.height / 2);
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// position vertically centered
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// if part of panel would be off screen adjust to keep minimum distance from window top/botom
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let top = Math.max(containerMiddle - (panelRect.height / 2), MIN_TOP_SPACING);
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if (top + panelRect.height > window.innerHeight - MIN_TOP_SPACING) {
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top = window.innerHeight - MIN_TOP_SPACING - panelRect.height;
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}
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// position to right of panel
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// if part of panel would be off screen adjust to keep minimum distance from window edge
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let left = containerRect.right + CARD_SPACING;
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if (left + panelRect.width > window.innerWidth - MIN_RIGHT_SPACING) {
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left = window.innerWidth - panelRect.width - MIN_RIGHT_SPACING;
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}
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panelElem.style.top = `${top}px`;
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panelElem.style.left = `${left}px`;
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}
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@task({restartable: true})
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*debounceWindowResizeTask() {
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yield timeout(250);
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this.positionPanel(this.panelElem);
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}
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// called when panel is expanded/collapsed by changing settings
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@action
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calculateResizeAdjustment(panelElem, {x, y}) {
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const panelRect = panelElem.getBoundingClientRect();
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const topIsOffscreen = panelRect.top < 0;
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const bottomIsOffscreen = panelRect.bottom > window.innerHeight;
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if (topIsOffscreen && bottomIsOffscreen) {
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// there's not much we can do here, the screen is too small.
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// leave as-is to avoid any weird jumping
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return {x, y};
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}
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if (topIsOffscreen) {
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const yAdjustment = Math.abs(panelRect.top) + 10;
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return {x, y: y + yAdjustment};
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}
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if (bottomIsOffscreen) {
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const yAdjustment = -Math.abs(panelRect.bottom - window.innerHeight) - 10;
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return {x, y: y + yAdjustment};
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}
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// no adjustment needed
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return {x, y};
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}
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}
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