diff options
Diffstat (limited to 'java')
| -rw-r--r-- | java/org/gnu/emacs/EmacsWindow.java | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/java/org/gnu/emacs/EmacsWindow.java b/java/org/gnu/emacs/EmacsWindow.java index 7662186a0eb..d7a37a8d57f 100644 --- a/java/org/gnu/emacs/EmacsWindow.java +++ b/java/org/gnu/emacs/EmacsWindow.java @@ -152,6 +152,10 @@ public final class EmacsWindow extends EmacsHandleObject /* The position of this window relative to the root window. */ public int xPosition, yPosition; + /* The position of the last drag and drop event received; both + values are -1 if no drag and drop operation is under way. */ + private int dndXPosition, dndYPosition; + public EmacsWindow (short handle, final EmacsWindow parent, int x, int y, int width, int height, boolean overrideRedirect) @@ -202,6 +206,9 @@ public final class EmacsWindow extends EmacsHandleObject return size () > 10; } }; + + dndXPosition = -1; + dndYPosition = -1; } public void @@ -1617,11 +1624,26 @@ public final class EmacsWindow extends EmacsHandleObject return true; case DragEvent.ACTION_DRAG_LOCATION: - /* Send this drag motion event to Emacs. */ - EmacsNative.sendDndDrag (handle, x, y); + /* Send this drag motion event to Emacs. Skip this when the + integer position hasn't changed, for Android sends events + even if the movement from the previous position of the drag + is less than 1 pixel on either axis. */ + + if (x != dndXPosition || y != dndYPosition) + { + EmacsNative.sendDndDrag (handle, x, y); + dndXPosition = x; + dndYPosition = y; + } + return true; case DragEvent.ACTION_DROP: + /* Reset this view's record of the previous drag and drop + event's position. */ + dndXPosition = -1; + dndYPosition = -1; + /* Judge whether this is plain text, or if it's a file URI for which permissions must be requested. */ @@ -1706,8 +1728,13 @@ public final class EmacsWindow extends EmacsHandleObject if (builder.length () > 0) EmacsNative.sendDndUri (handle, x, y, builder.toString ()); - return true; + + default: + /* Reset this view's record of the previous drag and drop + event's position. */ + dndXPosition = -1; + dndYPosition = -1; } return true; |