When the adjustment changes (due to e.g. a mouse wheel scroll) we update
the prelight. The part that un-prelights the previous prelight was
broken by the the pixel cache, as it called update_prelight in the
middle of the scrolling operation, where the windows were moved
but the tree_view->priv->dy was not changed to the new value. This
caused the updates to the pixel cache to go to the wrong place.
We fix this by fully doing the scroll before we update_prelight().
https://bugzilla.gnome.org/show_bug.cgi?id=728284
GTK_TREE_VIEW_TIME_MS_PER_IDLE is currently 30 milliseconds, meaning
that validate_rows will validate rows up until all the validations have
taken over 30 msecs. So it's likely to block redrawing via the clock
frame update mechanism, as that tops at 16.66 milliseconds per frame
(1/60th of a second).
Stop validating rows if we've spent more than 3/5 of our allotted budget
for inter-frame processing, so as to avoid blocking.
In the future, we would probably want to calculate how long we would
have left until the next frame, especially if higher priority idles
and timeouts have already consumed a portion of that allotted time.
https://bugzilla.gnome.org/show_bug.cgi?id=726871
Stop ignoring various crossing events from grabs:
Enter events with type GRAB/GTK_GRAB/GTK_UNGRAB/STATE_CHANGED:
Ignoring these events was added as a workaround for synthesized
events not having the right coordinates (see bug 555109) but
now they do have the right coordinates. (see bug 704456)
Leave events with types types GTK_GRAB/GTK_UNGRAB:
Ignoring these events was added because since we were ignoring
the enter events as above, ignoring the leave events meant we
could lose the prelighted row in a grab-triggered leave/enter
pair. (See bug 653676. It's also now impossible to
reproduce the leave events that were reported in that bug as causing
problems.)
Leave events of type GRAB.
Ignoring these events was added without a ChangeLog entry in 2001,
possibly to keep the prelight from flashing when activating menus.
But ignoring these events could lead to stuck prelighting, and we don't
do it for any other widgets.
https://bugzilla.gnome.org/show_bug.cgi?id=726209
The bug this patch is fixing is that currently if you have a GtkPopover in
clicking off the popover to dismiss it on a GtkTreeView (which triggers
a synthetic enter event on the GtkTreeView) will leave the GtkTreeView
in a confused state until the user moves the mouse again.
That doesn't make sense.
And it causes issues, because when holding down the tab key, we
show/hide a lot of windows and cause a lot of map/unmap events that
stall the event pipeline.
Add documentation for GtkTreeView::move-cursor
Add links to GtkTreeModel::row-inserted and GtkTreeModel::row-deleted
in the documentation for gtk_tree_view_set_reorderable ().
https://bugzilla.gnome.org/show_bug.cgi?id=725560
gtk_tree_view_remove_column was first removing the column from
its list, then call gtk_tree_view_column_unset_tree_view, which
would then call gtk_container_remove to remove its button from
the treeview. But the treeview remove implementation relied
on the column being still in the list in order to recognize
the button as 'special', so in effect the button was never
properly removed and thus, leaked.
Fix this by callling unset_tree_view before removing the
column from the list.
https://bugzilla.gnome.org/show_bug.cgi?id=724891
Suprisingly, this bug has been there for a very long time.
I'm fixing it now because we now use a custom search entry
in the app chooser dialog, and this is causing the templates
cleanup test to fail.
The bin window's background would have to be drawn in the bin window's
size and inside the pixel cache draw function to not cause transparency
issues.
But because it's unnecessary as the view window draws the same
background, we just skip it.
https://bugzilla.gnome.org/show_bug.cgi?id=709027
Don't recurse the mainloop in _gtk_tree_view_column_start_drag().
It doesn't serve any discernible purpose, and recursing the
mainloop from the flush-events phas of the frame clock breaks
frame synchronization with mutter.
https://bugzilla.gnome.org/show_bug.cgi?id=705176
When trying to drag, we currently the position of the first motion
event to determine where the drag came from. This might be alright
in the case of the old animation, but the data will be inaccurate
if the user has moved the pointer quite a bit since pressing the
cursor to start dragging. While we could monkey patch the GdkEvent
at the widget layer, this is unintuitive and strange.
Add a new API that takes a set of pointer coordinates describing
the origin of the drag. Additionally, adapt most widgets to use
it and use it with correct coordinates.
https://bugzilla.gnome.org/show_bug.cgi?id=705605
This invariant stopped being guaranteed when we moved the visible area
validation from a high priority idle to a tick callback.
Fixes redrawing bugs like row expanding sometimes not having any visual
effect.
