TypeScript ContextKeyExpr.deserialize方法代碼示例

	function handleCommand(userFriendlyCommand: schema.IUserFriendlyCommand, extension: IExtensionPointUser<any>, disposables: IDisposable[]) {

		if (!schema.isValidCommand(userFriendlyCommand, extension.collector)) {
			return;
		}

		const { icon, enablement, category, title, command } = userFriendlyCommand;

		let absoluteIcon: { dark: URI; light?: URI; } | undefined;
		if (icon) {
			if (typeof icon === 'string') {
				absoluteIcon = { dark: resources.joinPath(extension.description.extensionLocation, icon) };
			} else {
				absoluteIcon = {
					dark: resources.joinPath(extension.description.extensionLocation, icon.dark),
					light: resources.joinPath(extension.description.extensionLocation, icon.light)
				};
			}
		}

		if (MenuRegistry.getCommand(command)) {
			extension.collector.info(localize('dup', "Command `{0}` appears multiple times in the `commands` section.", userFriendlyCommand.command));
		}
		const registration = MenuRegistry.addCommand({
			id: command,
			title,
			category,
			precondition: ContextKeyExpr.deserialize(enablement),
			iconLocation: absoluteIcon
		});
		disposables.push(registration);
	}

			const viewDescriptors = entry.value.map(item => ({
				id: item.id,
				name: item.name,
				ctor: TreeView,
				location,
				when: ContextKeyExpr.deserialize(item.when)
			}));

		forEach(value, entry => {
			if (!schema.isValidMenuItems(entry.value, collector)) {
				return;
			}

			const menu = schema.parseMenuId(entry.key);
			if (typeof menu !== 'number') {
				collector.warn(localize('menuId.invalid', "`{0}` is not a valid menu identifier", entry.key));
				return;
			}

			if (schema.isProposedAPI(menu) && !extension.description.enableProposedApi) {
				collector.error(localize('proposedAPI.invalid', "{0} is a proposed menu identifier and is only available when running out of dev or with the following command line switch: --enable-proposed-api {1}", entry.key, extension.description.identifier.value));
				return;
			}

			for (let item of entry.value) {
				let command = MenuRegistry.getCommand(item.command);
				let alt = item.alt && MenuRegistry.getCommand(item.alt);

				if (!command) {
					collector.error(localize('missing.command', "Menu item references a command `{0}` which is not defined in the 'commands' section.", item.command));
					continue;
				}
				if (item.alt && !alt) {
					collector.warn(localize('missing.altCommand', "Menu item references an alt-command `{0}` which is not defined in the 'commands' section.", item.alt));
				}
				if (item.command === item.alt) {
					collector.info(localize('dupe.command', "Menu item references the same command as default and alt-command"));
				}

				let group: string | undefined;
				let order: number | undefined;
				if (item.group) {
					const idx = item.group.lastIndexOf('@');
					if (idx > 0) {
						group = item.group.substr(0, idx);
						order = Number(item.group.substr(idx + 1)) || undefined;
					} else {
						group = item.group;
					}
				}

				const registration = MenuRegistry.appendMenuItem(menu, {
					command,
					alt,
					group,
					order,
					when: ContextKeyExpr.deserialize(item.when)
				} as IMenuItem);
				_menuRegistrations.push(registration);
			}
		});

		forEach(value, entry => {
			if (!schema.isValidMenuItems(entry.value, collector)) {
				return;
			}

			const menu = schema.parseMenuId(entry.key);
			if (!menu) {
				collector.warn(localize('menuId.invalid', "`{0}` is not a valid menu identifier", entry.key));
				return;
			}

			for (let item of entry.value) {
				let command = MenuRegistry.getCommand(item.command);
				let alt = item.alt && MenuRegistry.getCommand(item.alt);

				if (!command) {
					collector.error(localize('missing.command', "Menu item references a command `{0}` which is not defined in the 'commands' section.", item.command));
					continue;
				}
				if (item.alt && !alt) {
					collector.warn(localize('missing.altCommand', "Menu item references an alt-command `{0}` which is not defined in the 'commands' section.", item.alt));
				}
				if (item.command === item.alt) {
					collector.info(localize('dupe.command', "Menu item references the same command as default and alt-command"));
				}

				if (item.alt && menu !== MenuId.EditorTitle && item.group !== 'navigation') {
					collector.info(localize('nosupport.altCommand', "Sorry, but currently only the 'navigation' group of the 'editor/title' menu supports alt-commands"));
				}

				let group: string;
				let order: number;
				if (item.group) {
					const idx = item.group.lastIndexOf('@');
					if (idx > 0) {
						group = item.group.substr(0, idx);
						order = Number(item.group.substr(idx + 1)) || undefined;
					} else {
						group = item.group;
					}
				}

				MenuRegistry.appendMenuItem(menu, {
					command,
					alt,
					group,
					order,
					when: ContextKeyExpr.deserialize(item.when)
				});
			}
		});

	function aResolvedKeybindingItem({ command, when, isDefault, firstPart, chordPart }: { command?: string, when?: string, isDefault?: boolean, firstPart?: { keyCode: KeyCode, modifiers?: Modifiers }, chordPart?: { keyCode: KeyCode, modifiers?: Modifiers } }): ResolvedKeybindingItem {
		const aSimpleKeybinding = function (part: { keyCode: KeyCode, modifiers?: Modifiers }): SimpleKeybinding {
			const { ctrlKey, shiftKey, altKey, metaKey } = part.modifiers || { ctrlKey: false, shiftKey: false, altKey: false, metaKey: false };
			return new SimpleKeybinding(ctrlKey, shiftKey, altKey, metaKey, part.keyCode);
		};
		const keybinding = firstPart ? chordPart ? new ChordKeybinding(aSimpleKeybinding(firstPart), aSimpleKeybinding(chordPart)) : aSimpleKeybinding(firstPart) : null;
		return new ResolvedKeybindingItem(keybinding ? new USLayoutResolvedKeybinding(keybinding, OS) : null, command || 'some command', null, when ? ContextKeyExpr.deserialize(when) : null, isDefault === void 0 ? true : isDefault);
	}

	function aResolvedKeybindingItem({ command, when, isDefault, firstPart, chordPart }: { command?: string, when?: string, isDefault?: boolean, firstPart?: { keyCode: KeyCode, modifiers?: Modifiers }, chordPart?: { keyCode: KeyCode, modifiers?: Modifiers } }): ResolvedKeybindingItem {
		const aSimpleKeybinding = function (part: { keyCode: KeyCode, modifiers?: Modifiers }): SimpleKeybinding {
			const { ctrlKey, shiftKey, altKey, metaKey } = part.modifiers || { ctrlKey: false, shiftKey: false, altKey: false, metaKey: false };
			return new SimpleKeybinding(ctrlKey!, shiftKey!, altKey!, metaKey!, part.keyCode);
		};
		let parts: SimpleKeybinding[] = [];
		if (firstPart) {
			parts.push(aSimpleKeybinding(firstPart));
			if (chordPart) {
				parts.push(aSimpleKeybinding(chordPart));
			}
		}
		const keybinding = parts.length > 0 ? new USLayoutResolvedKeybinding(new ChordKeybinding(parts), OS) : undefined;
		return new ResolvedKeybindingItem(keybinding, command || 'some command', null, when ? ContextKeyExpr.deserialize(when) : undefined, isDefault === undefined ? true : isDefault);
	}