mirror of
https://github.com/LadybirdBrowser/ladybird.git
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57ff293a51
This patch adds a simple GMessageBox that can run in a nested event loop.
Here's how you use it:
GMessageBox box("Message text here", "Message window title");
int result = box.exec();
The next step is to make the WindowServer respect the modality flag of
these windows and prevent interaction with other windows in the same
process until the modal window has been closed.
103 lines
2.2 KiB
C++
103 lines
2.2 KiB
C++
#include "GObject.h"
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#include "GEvent.h"
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#include "GEventLoop.h"
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#include <AK/Assertions.h>
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#include <stdio.h>
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GObject::GObject(GObject* parent)
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: m_parent(parent)
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{
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if (m_parent)
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m_parent->add_child(*this);
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}
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GObject::~GObject()
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{
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stop_timer();
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if (m_parent)
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m_parent->remove_child(*this);
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auto children_to_delete = move(m_children);
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for (auto* child : children_to_delete)
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delete child;
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}
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void GObject::event(GEvent& event)
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{
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switch (event.type()) {
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case GEvent::Timer:
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return timer_event(static_cast<GTimerEvent&>(event));
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case GEvent::DeferredDestroy:
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delete this;
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break;
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case GEvent::ChildAdded:
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case GEvent::ChildRemoved:
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return child_event(static_cast<GChildEvent&>(event));
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case GEvent::Invalid:
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ASSERT_NOT_REACHED();
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break;
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default:
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break;
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}
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}
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void GObject::add_child(GObject& object)
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{
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m_children.append(&object);
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GEventLoop::current().post_event(*this, make<GChildEvent>(GEvent::ChildAdded, object));
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}
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void GObject::remove_child(GObject& object)
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{
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for (ssize_t i = 0; i < m_children.size(); ++i) {
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if (m_children[i] == &object) {
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m_children.remove(i);
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GEventLoop::current().post_event(*this, make<GChildEvent>(GEvent::ChildRemoved, object));
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return;
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}
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}
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}
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void GObject::timer_event(GTimerEvent&)
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{
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}
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void GObject::child_event(GChildEvent&)
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{
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}
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void GObject::start_timer(int ms)
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{
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if (m_timer_id) {
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dbgprintf("GObject{%p} already has a timer!\n", this);
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ASSERT_NOT_REACHED();
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}
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m_timer_id = GEventLoop::register_timer(*this, ms, true);
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}
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void GObject::stop_timer()
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{
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if (!m_timer_id)
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return;
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bool success = GEventLoop::unregister_timer(m_timer_id);
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ASSERT(success);
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m_timer_id = 0;
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}
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void GObject::delete_later()
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{
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GEventLoop::current().post_event(*this, make<GEvent>(GEvent::DeferredDestroy));
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}
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void GObject::dump_tree(int indent)
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{
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for (int i = 0; i < indent; ++i) {
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printf(" ");
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}
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printf("%s{%p}\n", class_name(), this);
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for (auto* child : children()) {
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child->dump_tree(indent + 2);
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}
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}
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