Pages are the main method of navigation in Perspective. A page represents a collection of views that are displayed in a single space. Just like a single tab of a web browser, this represents a single page (at a time). Each configured page specifies a primary view, which is the view which will fill the available space of the page. Other views may be configured to be displayed “docked” to the sides of the page, or “popups” floating on top of the other views. Each page has a URL associated with it, which is how the browser navigates to and displays that specific page.
Page layout has specific UI regions where you can place instances of your views. Depending on screen size and orientation, the UI regions have different behavior. There are six primary content regions: Center area, Top Dock, Bottom Dock, Left Dock, and Right Dock. There is also the Popup region that floats on top of the other content regions.
The Primary View is in the center of each page taking all available space in the browser window. Each page must have a single view configured to be its primary view.
Docked views, on the other hand, can have multiple views on each side of the page or no views at all, but only one view may be shown at a time for a given dock position. In a session, docked views can appear permanently along the edges or the browser, as small handles that look like tabs on the edges of the browser, or the can auto auto-hide themselves.