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Fix issues in wlr/taskbar #969

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merged 2 commits into from
Jan 11, 2021
Merged

Fix issues in wlr/taskbar #969

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ef9c3ef
fix(wlr/taskbar): fix wl_array out-of-bounds access
alebastr Jan 6, 2021
b79301a
fix(wlr/taskbar): protocol error when reconnecting outputs
alebastr Jan 8, 2021
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30 changes: 21 additions & 9 deletions src/modules/wlr/taskbar.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -367,16 +367,16 @@ void Task::handle_output_leave(struct wl_output *output)
void Task::handle_state(struct wl_array *state)
{
state_ = 0;
for (auto* entry = static_cast<uint32_t*>(state->data);
entry < static_cast<uint32_t*>(state->data) + state->size;
entry++) {
if (*entry == ZWLR_FOREIGN_TOPLEVEL_HANDLE_V1_STATE_MAXIMIZED)
size_t size = state->size / sizeof(uint32_t);
for (size_t i = 0; i < size; ++i) {
auto entry = static_cast<uint32_t*>(state->data)[i];
if (entry == ZWLR_FOREIGN_TOPLEVEL_HANDLE_V1_STATE_MAXIMIZED)
state_ |= MAXIMIZED;
if (*entry == ZWLR_FOREIGN_TOPLEVEL_HANDLE_V1_STATE_MINIMIZED)
if (entry == ZWLR_FOREIGN_TOPLEVEL_HANDLE_V1_STATE_MINIMIZED)
state_ |= MINIMIZED;
if (*entry == ZWLR_FOREIGN_TOPLEVEL_HANDLE_V1_STATE_ACTIVATED)
if (entry == ZWLR_FOREIGN_TOPLEVEL_HANDLE_V1_STATE_ACTIVATED)
state_ |= ACTIVE;
if (*entry == ZWLR_FOREIGN_TOPLEVEL_HANDLE_V1_STATE_FULLSCREEN)
if (entry == ZWLR_FOREIGN_TOPLEVEL_HANDLE_V1_STATE_FULLSCREEN)
state_ |= FULLSCREEN;
}
}
Expand Down Expand Up @@ -637,8 +637,20 @@ Taskbar::Taskbar(const std::string &id, const waybar::Bar &bar, const Json::Valu
Taskbar::~Taskbar()
{
if (manager_) {
zwlr_foreign_toplevel_manager_v1_destroy(manager_);
manager_ = nullptr;
struct wl_display *display = Client::inst()->wl_display;
/*
* Send `stop` request and wait for one roundtrip.
* This is not quite correct as the protocol encourages us to wait for the .finished event,
* but it should work with wlroots foreign toplevel manager implementation.
*/
zwlr_foreign_toplevel_manager_v1_stop(manager_);
wl_display_roundtrip(display);

if (manager_) {
spdlog::warn("Foreign toplevel manager destroyed before .finished event");
zwlr_foreign_toplevel_manager_v1_destroy(manager_);
manager_ = nullptr;
}
}
}

Expand Down