File Open Dialog

[farmaazon]

Summary

There should be both an icon and a cmd + o shortcut which will open the project list and the file browser side by side (project list on the left of the file browser) centered on the screen. Double-clicking the project name in the project list should switch the IDE to the selected project. Double-clicking any file in the file searcher should load the file to the stage as a node.

Value

Specification

• The opening dialog is currently implemented in the searcher. It should be removed from there, and the special dialog should show both project list and the file viewer.
• The node inserted should be File.read with appropriate path; the content root should be represented as described in Implement Missing Parts of Multiple Content Roots #1780 (comment) + possibly discussion.

Acceptance Criteria & Test Cases