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Better align Emacs window management with Android task lifecycles

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* java/org/gnu/emacs/EmacsActivity.java (onCreate): Permit
overriding by child classes.
(onDestroy): Minor stylistic adjustments.
(getAttachmentToken): New function.

* java/org/gnu/emacs/EmacsMultitaskActivity.java (onCreate)
(getAttachmentToken): New functions.

* java/org/gnu/emacs/EmacsWindow.java (EmacsWindow):
<attachmentToken, preserve, previouslyAttached>: New variables.
(onActivityDetached): Remove redundant isFinishing argument.
(reparentTo): Reset the foregoing fields before registering with
the window manager.

* java/org/gnu/emacs/EmacsWindowManager.java
(EmacsWindowManager): Rename from EmacsWindowAttachmentManager.
(WindowConsumer): New function getAttachmentToken.
(isWindowEligible): New function.
(registerWindowConsumer, registerWindow, removeWindowConsumer)
(detachWindow): Implement a new window management strategy on
API 29 and subsequent releases where both varieties of toplevel
window are permanently, except when reparented, bound to the
activities to which they attach, and Emacs establishes at
strategic junctures whether those activities remain present.
(getTaskToken, pruneWindows): New functions.
This commit is contained in:
Po Lu
2024-04-03 20:29:10 +08:00
parent fa9791fe6a
commit 7df66b4762
7 changed files with 457 additions and 254 deletions
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12
java/org/gnu/emacs/EmacsView.java
View File

@@ -511,6 +511,8 @@ public final class EmacsView extends ViewGroup
&& !EmacsNative.shouldForwardMultimediaButtons ())
return false;
Log.d (TAG, "onKeyDown: " + event.toString ());
window.onKeyDown (keyCode, event);
return true;
}
@@ -708,12 +710,12 @@ public final class EmacsView extends ViewGroup
contextMenu = null;
popupActive = false;
/* It is not possible to know with 100% certainty which activity
is currently displaying the context menu. Loop through each
activity and call `closeContextMenu' instead. */
/* It is not possible to know with 100% certainty which activity is
currently displaying the context menu. Loop over each activity
and call `closeContextMenu' instead. */
for (EmacsWindowAttachmentManager.WindowConsumer consumer
: EmacsWindowAttachmentManager.MANAGER.consumers)
for (EmacsWindowManager.WindowConsumer consumer
: EmacsWindowManager.MANAGER.consumers)
{
if (consumer instanceof EmacsActivity)
((EmacsActivity) consumer).closeContextMenu ();