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I use multiple windows in development. I set "Preferences > General > Perspectives > Open a new perspective > In a new window". When I open a new perspective, the new window is opened, the perspective populates, and then the new window is pushed into the background. The new window should remain in the foreground and receive focus.
Created attachment 203100 [details] Patch to StackRenderer's ActivationJob In digging into this, I should note that you need to open the perspective through Window > Open Perspective and not the Perspective Switcher. (The Perspective Switcher ignores the IPreferenceConstants.OPEN_PERSP_MODE = OPM_NEW_WINDOW setting; I have filed this separately as bug 357295.) What happens is that after opening the window, a PartStack in the original window (seemingly the top-level PartStack in the perspective) is activated for some reason, causing an activate-part event and triggering a setFocus(). Tracing execution through StackRenderer's ActivationJob, shouldActivate() returns true for this stack as the application's active child == application.getSelectionElement(). I think it should also check that the stackToActivate is a stack in the current window too. The patch attached here does this. (I'm experiencing deja vu — I think I reported a similar problem a year ago…)
Verified in 4.2M3
