本文整理匯總了TypeScript中Immutable.Map.first方法的典型用法代碼示例。如果您正苦於以下問題：TypeScript Map.first方法的具體用法？TypeScript Map.first怎麽用？TypeScript Map.first使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類Immutable.Map的用法示例。
在下文中一共展示了Map.first方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的TypeScript代碼示例。
示例1: docContextMenu
export function docContextMenu(canvas: Canvas, e: any): void {
e.preventDefault();
canvas._canvasGlobalParam.canvasMouseUp(e);
if (canvas.props.onContextMenu) {
let contextMenuItems: IContextMenuItems[] = [];
const mouseEventType: string = canvas._mouseAndKeyUtil.onMouseEventType(e);
switch (mouseEventType) {
case 'component':
const currentSelectedComponent: Map<string, IComponent> = canvas._canvasGlobalParam.getSelectedComponents();
if (currentSelectedComponent.size === 1) {
contextMenuItems = currentSelectedComponent.first().getContextMenuItems();
}
break;
case 'canvas':
contextMenuItems = [
{
type: 'menu',
label: '撤銷',
enabled: canvas._undoStack.peek() ? true : false,
click: () => {
canvas.executeCommand({
t: CommandMap.CANVAS_UNDO
});
}
},
{
type: 'menu',
label: '重做',
enabled: canvas._redoStack.peek() ? true : false,
click: () => {
canvas.executeCommand({
t: CommandMap.CANVAS_REDO
});
}
},
{
type: 'separator'
},
{
type: 'menu',
label: '粘貼',
click: () => {
canvas.executeCommand({
t: CommandMap.COM_PASTE
});
}
}
];
break;
}
canvas.props.onContextMenu(e, contextMenuItems);
}
}