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chore(client/ts): port menus/context_menu
This commit is contained in:
Elian Doran
parent
38752f0006
commit
5f0ace2886
214
src/public/app/menus/context_menu.ts
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214
src/public/app/menus/context_menu.ts
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import keyboardActionService from '../services/keyboard_actions.js';
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interface ContextMenuOptions {
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x: number;
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y: number;
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orientation?: "left";
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selectMenuItemHandler: MenuHandler;
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items: MenuItem[];
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}
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interface MenuSeparatorItem {
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title: "----"
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}
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export interface MenuCommandItem {
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title: string;
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command?: string;
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type: string;
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uiIcon: string;
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templateNoteId?: string;
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enabled?: boolean;
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handler?: MenuHandler;
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items?: MenuItem[];
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shortcut?: string;
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}
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export type MenuItem = MenuCommandItem | MenuSeparatorItem;
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export type MenuHandler = (item: MenuItem, e: JQuery.MouseDownEvent<HTMLElement, undefined, HTMLElement, HTMLElement>) => void;
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class ContextMenu {
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private $widget!: JQuery<HTMLElement>;
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private dateContextMenuOpenedMs: number;
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private options?: ContextMenuOptions;
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constructor() {
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this.$widget = $("#context-menu-container");
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this.$widget.addClass("dropend");
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this.dateContextMenuOpenedMs = 0;
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$(document).on('click', () => this.hide());
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}
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async show(options: ContextMenuOptions) {
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this.options = options;
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if (this.$widget.hasClass("show")) {
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// The menu is already visible. Hide the menu then open it again
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// at the new location to re-trigger the opening animation.
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await this.hide();
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}
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this.$widget.empty();
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this.addItems(this.$widget, options.items);
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keyboardActionService.updateDisplayedShortcuts(this.$widget);
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this.positionMenu();
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this.dateContextMenuOpenedMs = Date.now();
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}
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positionMenu() {
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if (!this.options) {
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return;
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}
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// the code below tries to detect when dropdown would overflow from page
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// in such case we'll position it above click coordinates, so it will fit into the client
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const CONTEXT_MENU_PADDING = 5; // How many pixels to pad the context menu from edge of screen
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const CONTEXT_MENU_OFFSET = 0; // How many pixels to offset the context menu by relative to cursor, see #3157
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const clientHeight = document.documentElement.clientHeight;
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const clientWidth = document.documentElement.clientWidth;
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const contextMenuHeight = this.$widget.outerHeight();
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const contextMenuWidth = this.$widget.outerWidth();
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let top, left;
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if (contextMenuHeight && this.options.y + contextMenuHeight - CONTEXT_MENU_OFFSET > clientHeight - CONTEXT_MENU_PADDING) {
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// Overflow: bottom
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top = clientHeight - contextMenuHeight - CONTEXT_MENU_PADDING;
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} else if (this.options.y - CONTEXT_MENU_OFFSET < CONTEXT_MENU_PADDING) {
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// Overflow: top
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top = CONTEXT_MENU_PADDING;
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} else {
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top = this.options.y - CONTEXT_MENU_OFFSET;
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}
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if (this.options.orientation === 'left' && contextMenuWidth) {
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if (this.options.x + CONTEXT_MENU_OFFSET > clientWidth - CONTEXT_MENU_PADDING) {
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// Overflow: right
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left = clientWidth - contextMenuWidth - CONTEXT_MENU_OFFSET;
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} else if (this.options.x - contextMenuWidth + CONTEXT_MENU_OFFSET < CONTEXT_MENU_PADDING) {
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// Overflow: left
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left = CONTEXT_MENU_PADDING;
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} else {
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left = this.options.x - contextMenuWidth + CONTEXT_MENU_OFFSET;
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}
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} else {
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if (contextMenuWidth && this.options.x + contextMenuWidth - CONTEXT_MENU_OFFSET > clientWidth - CONTEXT_MENU_PADDING) {
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// Overflow: right
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left = clientWidth - contextMenuWidth - CONTEXT_MENU_PADDING;
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} else if (this.options.x - CONTEXT_MENU_OFFSET < CONTEXT_MENU_PADDING) {
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// Overflow: left
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left = CONTEXT_MENU_PADDING;
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} else {
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left = this.options.x - CONTEXT_MENU_OFFSET;
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}
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}
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this.$widget.css({
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display: "block",
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top: top,
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left: left
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}).addClass("show");
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}
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addItems($parent: JQuery<HTMLElement>, items: MenuItem[]) {
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for (const item of items) {
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if (!item) {
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continue;
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}
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if (item.title === '----') {
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$parent.append($("<div>").addClass("dropdown-divider"));
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} else {
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const $icon = $("<span>");
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if ("uiIcon" in item && item.uiIcon) {
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$icon.addClass(item.uiIcon);
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} else {
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$icon.append(" ");
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}
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const $link = $("<span>")
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.append($icon)
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.append(" ") // some space between icon and text
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.append(item.title);
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if ("shortcut" in item && item.shortcut) {
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$link.append($("<kbd>").text(item.shortcut));
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}
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const $item = $("<li>")
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.addClass("dropdown-item")
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.append($link)
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.on('contextmenu', e => false)
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// important to use mousedown instead of click since the former does not change focus
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// (especially important for focused text for spell check)
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.on('mousedown', e => {
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e.stopPropagation();
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if (e.which !== 1) { // only left click triggers menu items
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return false;
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}
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this.hide();
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if ("handler" in item && item.handler) {
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item.handler(item, e);
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}
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this.options?.selectMenuItemHandler(item, e);
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// it's important to stop the propagation especially for sub-menus, otherwise the event
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// might be handled again by top-level menu
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return false;
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});
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if ("enabled" in item && item.enabled !== undefined && !item.enabled) {
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$item.addClass("disabled");
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}
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if ("items" in item && item.items) {
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$item.addClass("dropdown-submenu");
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$link.addClass("dropdown-toggle");
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const $subMenu = $("<ul>").addClass("dropdown-menu");
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this.addItems($subMenu, item.items);
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$item.append($subMenu);
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}
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$parent.append($item);
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}
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}
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}
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async hide() {
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// this date checking comes from change in FF66 - https://github.com/zadam/trilium/issues/468
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// "contextmenu" event also triggers "click" event which depending on the timing can close the just opened context menu
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// we might filter out right clicks, but then it's better if even right clicks close the context menu
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if (Date.now() - this.dateContextMenuOpenedMs > 300) {
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// seems like if we hide the menu immediately, some clicks can get propagated to the underlying component
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// see https://github.com/zadam/trilium/pull/3805 for details
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await timeout(100);
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this.$widget.removeClass("show");
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this.$widget.hide()
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}
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}
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}
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function timeout(ms: number) {
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return new Promise((accept, reject) => {
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setTimeout(accept, ms);
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});
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}
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const contextMenu = new ContextMenu();
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export default contextMenu;
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