In addition to <snapping><range>, <snapping><cornerRange> configures the
distance from the screen corner to trigger quater window snapping.
Also, new values "up-left", "up-right", "down-left" and "down-right" are
allowed for <action name="(Toggle)SnapToEdge" direction="[value]"> and
<query tiled="[value]">.
..in preparation for If/ForEach action with <prompt>, which should be
executed whether or not any window is focused.
This patch makes <If> actions execute <else> branch if no window is
focused or hovered.
This commit rewrites the nested action parser into append_actions() which
is used by following commits. At this point, it's not used yet and parsing
"If" action is temporarily disabled.
For example, the following node:
<keybind name.action="ShowMenu" menu.action="root-menu"
x.position.action="1" y.position.action="2" />
is converted to:
<keybind>
<action>
<name>ShowMenu</name>
<menu>root-menu</menu>
<position>
<x>1</x>
<y>2</y>
</position>
</action>
</keybind>
...before processing the entire xml tree. This is a preparation to prevent
breaking changes when we refactor rcxml.c to use recursion instead of
encoding nodes into dotted strings.
- style "GLib" with two capitals as in its own upstream docs
- use title-case consistently for headings
- add missing heading to table of contents
- update dead GLib documentation URL
This is a common practice in C projects, which simply enforces that
each header must compile cleanly without implicit dependencies on
other headers (see also the previous commit).
The lifetime of the "current_" variables (current_menu, current_item,
current_item_action) is very difficult to understand from reading the
code. It appears that e.g. current_menu could still point to a previous
menu when starting to parse a new one, with unpredictable results.
Let's use a context struct when parsing, and consistently initialize
it when beginning to build a new menu.
Lightly tested with:
- default menus (no menu.xml)
- example static menu from labwc.github.io/getting-started.html
- an added "client-list-combined-menu" sub-menu
- pipe menu generated by `labwc-menu-generator -p`
v2: style fix
Hi-res mice produces mulitple scroll events with `delta_discrete` != 0
during a single "click". This patch makes them trigger `Scroll` actions
only when the accumulated `delta_discrete` exceeds 120 (= 1 click).
See https://lists.freedesktop.org/archives/wayland-devel/2019-April/040377.html
for how hi-res scroll events are reported.
