Scope dialog to a subsection of the DOM rather than the whole page

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#3,221 创建于 2017年2月21日 12 条评论 10 个 reaction 已指派 0 人在 GitHub 查看

area: material/dialog feature P5

描述

#### Bug, feature request, or proposal:
Feature

#### What is the expected behavior?
It would be nice to have an option that set how a modal should be opened.

For example with material for AngularJS : https://material.angularjs.org/latest/demo/dialog

![image](https://cloud.githubusercontent.com/assets/4950209/23166647/b2c49986-f841-11e6-9fa5-0b313d86abfa.png)

Give :
![image](https://cloud.githubusercontent.com/assets/4950209/23166658/be54848c-f841-11e6-96e1-9cd5d8440c25.png)

(it's not opened on the whole page).

There's an option for that :
![image](https://cloud.githubusercontent.com/assets/4950209/23166677/d4b6e332-f841-11e6-9904-b0678e27e5a5.png)

(gives the following)
![image](https://cloud.githubusercontent.com/assets/4950209/23166699/ecabff5e-f841-11e6-8fc1-cceb32b38607.png)

#### What is the current behavior?
A modal is opened in full page

未指定文件、测试或入口点。首先定位对话框实现，并检查它当前如何在整个页面上打开。完成标准是提供一个选项，将模态框限制在选定的 DOM 子区域内，并与所提供的 AngularJS 示例一致。

由索引模型根据 Issue 内容生成。