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Created attachment 277491 [details] Screencast demonstrating the issue If I open a new view in the PDE perspective the existing bottom stack is not used. In Java it uses the bottom stack which is IMHO the desired behaviour. See screencast.
Observations: 1. In case of the console: The console location is predefined in the Java Perspective, but hidden by default. The PDE Perspective does not have a hidden console. 2. When GIT is installed, the last PartStack in the PDE Perspective is a not-rendered PartStack. When opening a view the following cases are considered to find the stack to open the view in: 1. In case there is a hidden placeholder/part, make it visible in that location. 2. In case there is a PartStack with a tag that matches the category tag of placeholder/part, add the placeholder/part to that PartStack. 3. In case multiple instances of the views are allowed, and another instance of the view is already open, add the placeholder/part to the same PartStack as the other view. 4. Otherwise, add the placeholder/part to the last PartStack. After a placeholder/part is added to a PartStack, its category tag is applied to the PartStack (if the category tag was not found). Problems: 1. Category tags are not applied for views that are defined in the Perspective. Only for explicitly opened views categories tags are added. Therefore, newly opened views are not kept with already open views of the same category. 2. Category tags are not updated when views are moved. Not sure though what behavior would be required here. 3. Finding the last PartStack results in unexpected candidates: a. It considers not-rendered PartStacks. b. In case the Welcome-Screen is open, the PartStack of the Welcome-Screen is the last PartStack. The view will be opened in the 'sticky' PartStack, see also Bug 511459.
*** Bug 511459 has been marked as a duplicate of this bug. ***
