zig/libvaxis
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

vxfw: implement event capturing for mouse events

Browse source
This commit is contained in:
Tim Culverhouse 2024-11-03 18:47:54 -06:00
parent 37aeabc647
commit b9fb06d902
1 changed files with 63 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

68
src/vxfw/App.zig
View file

@ -248,9 +248,60 @@ const MouseHandler = struct {
if (item.widget.eql(last_handler)) break;
} else {
try last_handler.handleEvent(ctx, .mouse_leave);
self.maybe_last_handler = null;
try app.handleCommand(&ctx.cmds);
}
}
const maybe_target = hits.popOrNull();
// capturing phase
ctx.phase = .capturing;
for (hits.items) |item| {
var m_local = mouse;
m_local.col = item.local.col;
m_local.row = item.local.row;
try item.widget.handleEvent(ctx, .{ .mouse = m_local });
try app.handleCommand(&ctx.cmds);
// If the event was consumed, we check if we need to send a mouse_leave and return
if (ctx.consume_event) {
if (self.maybe_last_handler) |last_handler| {
if (!last_handler.eql(item.widget)) {
try last_handler.handleEvent(ctx, .mouse_leave);
self.maybe_last_handler = item.widget;
try app.handleCommand(&ctx.cmds);
}
self.maybe_last_handler = item.widget;
return;
}
}
}
// target phase
ctx.phase = .at_target;
if (maybe_target) |target| {
var m_local = mouse;
m_local.col = target.local.col;
m_local.row = target.local.row;
try target.widget.handleEvent(ctx, .{ .mouse = m_local });
try app.handleCommand(&ctx.cmds);
// If the event was consumed, we check if we need to send a mouse_leave and return
if (ctx.consume_event) {
if (self.maybe_last_handler) |last_handler| {
if (!last_handler.eql(target.widget)) {
try last_handler.handleEvent(ctx, .mouse_leave);
self.maybe_last_handler = target.widget;
try app.handleCommand(&ctx.cmds);
}
self.maybe_last_handler = target.widget;
return;
}
}
}
// Bubbling phase
ctx.phase = .bubbling;
while (hits.popOrNull()) |item| {
var m_local = mouse;
m_local.col = item.local.col;
@ -258,11 +309,18 @@ const MouseHandler = struct {
try item.widget.handleEvent(ctx, .{ .mouse = m_local });
try app.handleCommand(&ctx.cmds);
// If the event wasn't consumed, we keep passing it on
if (!ctx.consume_event) continue;
self.maybe_last_handler = item.widget;
return;
// If the event was consumed, we check if we need to send a mouse_leave and return
if (ctx.consume_event) {
if (self.maybe_last_handler) |last_handler| {
if (!last_handler.eql(item.widget)) {
try last_handler.handleEvent(ctx, .mouse_leave);
self.maybe_last_handler = item.widget;
try app.handleCommand(&ctx.cmds);
}
self.maybe_last_handler = item.widget;
return;
}
}
}
// If no one handled the mouse, we assume it exited