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LibWeb: Move the Page/Frame/EventHandler classes into Page/

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This commit is contained in:
Andreas Kling 2020-07-28 19:27:41 +02:00
parent 481e838054
commit ef711f501e
24 changed files with 32 additions and 33 deletions
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230
Libraries/LibWeb/Page/EventHandler.cpp Normal file
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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/Event.h>
#include <LibGUI/Window.h>
#include <LibJS/Runtime/Value.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/HTMLAnchorElement.h>
#include <LibWeb/HTML/HTMLIFrameElement.h>
#include <LibWeb/Layout/LayoutDocument.h>
#include <LibWeb/Page/EventHandler.h>
#include <LibWeb/Page/Frame.h>
#include <LibWeb/PageView.h>
#include <LibWeb/UIEvents/MouseEvent.h>
namespace Web {
static Gfx::IntPoint compute_mouse_event_offset(const Gfx::IntPoint& position, const LayoutNode& layout_node)
{
auto top_left_of_layout_node = layout_node.box_type_agnostic_position();
return {
position.x() - static_cast<int>(top_left_of_layout_node.x()),
position.y() - static_cast<int>(top_left_of_layout_node.y())
};
}
EventHandler::EventHandler(Badge<Frame>, Frame& frame)
: m_frame(frame)
{
}
EventHandler::~EventHandler()
{
}
const LayoutDocument* EventHandler::layout_root() const
{
if (!m_frame.document())
return nullptr;
return m_frame.document()->layout_node();
}
LayoutDocument* EventHandler::layout_root()
{
if (!m_frame.document())
return nullptr;
return m_frame.document()->layout_node();
}
bool EventHandler::handle_mouseup(const Gfx::IntPoint& position, unsigned button, unsigned modifiers)
{
if (!layout_root())
return false;
bool handled_event = false;
auto result = layout_root()->hit_test(position);
if (result.layout_node && result.layout_node->node()) {
RefPtr<DOM::Node> node = result.layout_node->node();
if (is<HTML::HTMLIFrameElement>(*node)) {
if (auto* subframe = downcast<HTML::HTMLIFrameElement>(*node).hosted_frame())
return subframe->event_handler().handle_mouseup(position.translated(compute_mouse_event_offset({}, *result.layout_node)), button, modifiers);
return false;
}
auto offset = compute_mouse_event_offset(position, *result.layout_node);
node->dispatch_event(UIEvents::MouseEvent::create("mouseup", offset.x(), offset.y()));
handled_event = true;
}
if (button == GUI::MouseButton::Left) {
dump_selection("MouseUp");
m_in_mouse_selection = false;
}
return handled_event;
}
bool EventHandler::handle_mousedown(const Gfx::IntPoint& position, unsigned button, unsigned modifiers)
{
if (!layout_root())
return false;
NonnullRefPtr document = *m_frame.document();
auto& page_client = m_frame.page().client();
auto result = layout_root()->hit_test(position);
if (!result.layout_node)
return false;
RefPtr<DOM::Node> node = result.layout_node->node();
document->set_hovered_node(node);
if (!node)
return false;
if (is<HTML::HTMLIFrameElement>(*node)) {
if (auto* subframe = downcast<HTML::HTMLIFrameElement>(*node).hosted_frame())
return subframe->event_handler().handle_mousedown(position.translated(compute_mouse_event_offset({}, *result.layout_node)), button, modifiers);
return false;
}
auto offset = compute_mouse_event_offset(position, *result.layout_node);
node->dispatch_event(UIEvents::MouseEvent::create("mousedown", offset.x(), offset.y()));
if (!layout_root())
return true;
if (RefPtr<HTML::HTMLAnchorElement> link = node->enclosing_link_element()) {
auto href = link->href();
auto url = document->complete_url(href);
dbg() << "Web::EventHandler: Clicking on a link to " << url;
if (button == GUI::MouseButton::Left) {
auto href = link->href();
auto url = document->complete_url(href);
if (href.starts_with("javascript:")) {
document->run_javascript(href.substring_view(11, href.length() - 11));
} else if (href.starts_with('#')) {
auto anchor = href.substring_view(1, href.length() - 1);
m_frame.scroll_to_anchor(anchor);
} else {
if (m_frame.is_main_frame()) {
page_client.page_did_click_link(url, link->target(), modifiers);
} else {
// FIXME: Handle different targets!
m_frame.loader().load(url, FrameLoader::Type::Navigation);
}
}
} else if (button == GUI::MouseButton::Right) {
page_client.page_did_request_link_context_menu(m_frame.to_main_frame_position(position), url, link->target(), modifiers);
} else if (button == GUI::MouseButton::Middle) {
page_client.page_did_middle_click_link(url, link->target(), modifiers);
}
} else {
if (button == GUI::MouseButton::Left) {
layout_root()->selection().set({ result.layout_node, result.index_in_node }, {});
dump_selection("MouseDown");
m_in_mouse_selection = true;
} else if (button == GUI::MouseButton::Right) {
page_client.page_did_request_context_menu(m_frame.to_main_frame_position(position));
}
}
return true;
}
bool EventHandler::handle_mousemove(const Gfx::IntPoint& position, unsigned buttons, unsigned modifiers)
{
if (!layout_root())
return false;
auto& document = *m_frame.document();
auto& page_client = m_frame.page().client();
bool hovered_node_changed = false;
bool is_hovering_link = false;
auto result = layout_root()->hit_test(position);
const HTML::HTMLAnchorElement* hovered_link_element = nullptr;
if (result.layout_node) {
RefPtr<DOM::Node> node = result.layout_node->node();
if (node && is<HTML::HTMLIFrameElement>(*node)) {
if (auto* subframe = downcast<HTML::HTMLIFrameElement>(*node).hosted_frame())
return subframe->event_handler().handle_mousemove(position.translated(compute_mouse_event_offset({}, *result.layout_node)), buttons, modifiers);
return false;
}
hovered_node_changed = node != document.hovered_node();
document.set_hovered_node(node);
if (node) {
hovered_link_element = node->enclosing_link_element();
if (hovered_link_element) {
#ifdef HTML_DEBUG
dbg() << "PageView: hovering over a link to " << hovered_link_element->href();
#endif
is_hovering_link = true;
}
auto offset = compute_mouse_event_offset(position, *result.layout_node);
node->dispatch_event(UIEvents::MouseEvent::create("mousemove", offset.x(), offset.y()));
if (!layout_root())
return true;
}
if (m_in_mouse_selection) {
layout_root()->selection().set_end({ result.layout_node, result.index_in_node });
dump_selection("MouseMove");
page_client.page_did_change_selection();
}
}
page_client.page_did_request_cursor_change(is_hovering_link ? GUI::StandardCursor::Hand : GUI::StandardCursor::None);
if (hovered_node_changed) {
RefPtr<HTML::HTMLElement> hovered_html_element = document.hovered_node() ? document.hovered_node()->enclosing_html_element() : nullptr;
if (hovered_html_element && !hovered_html_element->title().is_null()) {
page_client.page_did_enter_tooltip_area(m_frame.to_main_frame_position(position), hovered_html_element->title());
} else {
page_client.page_did_leave_tooltip_area();
}
if (is_hovering_link)
page_client.page_did_hover_link(document.complete_url(hovered_link_element->href()));
else
page_client.page_did_unhover_link();
}
return true;
}
void EventHandler::dump_selection(const char* event_name) const
{
UNUSED_PARAM(event_name);
#ifdef SELECTION_DEBUG
dbg() << event_name << " selection start: "
<< layout_root()->selection().start().layout_node << ":" << layout_root()->selection().start().index_in_node << ", end: "
<< layout_root()->selection().end().layout_node << ":" << layout_root()->selection().end().index_in_node;
#endif
}
}

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Libraries/LibWeb/Page/EventHandler.h Normal file
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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Forward.h>
#include <LibGUI/Forward.h>
#include <LibGfx/Forward.h>
#include <LibWeb/Forward.h>
namespace Web {
class Frame;
class EventHandler {
public:
explicit EventHandler(Badge<Frame>, Frame&);
~EventHandler();
bool handle_mouseup(const Gfx::IntPoint&, unsigned button, unsigned modifiers);
bool handle_mousedown(const Gfx::IntPoint&, unsigned button, unsigned modifiers);
bool handle_mousemove(const Gfx::IntPoint&, unsigned buttons, unsigned modifiers);
private:
LayoutDocument* layout_root();
const LayoutDocument* layout_root() const;
void dump_selection(const char* event_name) const;
Frame& m_frame;
bool m_in_mouse_selection { false };
};
}

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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibWeb/DOM/Document.h>
#include <LibWeb/HTML/HTMLAnchorElement.h>
#include <LibWeb/Layout/LayoutDocument.h>
#include <LibWeb/Layout/LayoutWidget.h>
#include <LibWeb/Page/Frame.h>
#include <LibWeb/PageView.h>
namespace Web {
Frame::Frame(DOM::Element& host_element, Frame& main_frame)
: m_page(main_frame.page())
, m_main_frame(main_frame)
, m_loader(*this)
, m_event_handler({}, *this)
, m_host_element(host_element.make_weak_ptr())
{
}
Frame::Frame(Page& page)
: m_page(page)
, m_main_frame(*this)
, m_loader(*this)
, m_event_handler({}, *this)
{
}
Frame::~Frame()
{
}
void Frame::set_document(DOM::Document* document)
{
if (m_document == document)
return;
if (m_document)
m_document->detach_from_frame({}, *this);
m_document = document;
if (m_document)
m_document->attach_to_frame({}, *this);
page().client().page_did_set_document_in_main_frame(m_document);
}
void Frame::set_size(const Gfx::IntSize& size)
{
if (m_size == size)
return;
m_size = size;
if (m_document)
m_document->layout();
}
void Frame::set_viewport_rect(const Gfx::IntRect& rect)
{
if (m_viewport_rect == rect)
return;
m_viewport_rect = rect;
if (m_document && m_document->layout_node())
m_document->layout_node()->did_set_viewport_rect({}, rect);
}
void Frame::set_needs_display(const Gfx::IntRect& rect)
{
if (!m_viewport_rect.intersects(rect))
return;
if (is_main_frame()) {
page().client().page_did_invalidate(to_main_frame_rect(rect));
return;
}
if (host_element() && host_element()->layout_node())
host_element()->layout_node()->set_needs_display();
}
void Frame::did_scroll(Badge<PageView>)
{
if (!m_document)
return;
if (!m_document->layout_node())
return;
m_document->layout_node()->for_each_in_subtree_of_type<LayoutWidget>([&](auto& layout_widget) {
layout_widget.update_widget();
return IterationDecision::Continue;
});
}
void Frame::scroll_to_anchor(const String& fragment)
{
if (!document())
return;
const auto* element = document()->get_element_by_id(fragment);
if (!element) {
auto candidates = document()->get_elements_by_name(fragment);
for (auto* candidate : candidates) {
if (is<HTML::HTMLAnchorElement>(*candidate)) {
element = downcast<HTML::HTMLAnchorElement>(candidate);
break;
}
}
}
if (!element || !element->layout_node())
return;
auto& layout_node = *element->layout_node();
Gfx::FloatRect float_rect { layout_node.box_type_agnostic_position(), { (float)viewport_rect().width(), (float)viewport_rect().height() } };
if (is<LayoutBox>(layout_node)) {
auto& layout_box = downcast<LayoutBox>(layout_node);
auto padding_box = layout_box.box_model().padding_box(layout_box);
float_rect.move_by(-padding_box.left, -padding_box.top);
}
page().client().page_did_request_scroll_into_view(enclosing_int_rect(float_rect));
}
Gfx::IntRect Frame::to_main_frame_rect(const Gfx::IntRect& a_rect)
{
auto rect = a_rect;
rect.set_location(to_main_frame_position(a_rect.location()));
return rect;
}
Gfx::IntPoint Frame::to_main_frame_position(const Gfx::IntPoint& a_position)
{
auto position = a_position;
for (auto* ancestor = parent(); ancestor; ancestor = ancestor->parent()) {
if (ancestor->is_main_frame())
break;
if (!ancestor->host_element())
return {};
if (!ancestor->host_element()->layout_node())
return {};
position.move_by(ancestor->host_element()->layout_node()->box_type_agnostic_position().to_type<int>());
}
return position;
}
}

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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Function.h>
#include <AK/Noncopyable.h>
#include <AK/RefPtr.h>
#include <AK/WeakPtr.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Rect.h>
#include <LibGfx/Size.h>
#include <LibWeb/Loader/FrameLoader.h>
#include <LibWeb/Page/EventHandler.h>
#include <LibWeb/TreeNode.h>
namespace Web {
class Frame : public TreeNode<Frame> {
public:
static NonnullRefPtr<Frame> create_subframe(DOM::Element& host_element, Frame& main_frame) { return adopt(*new Frame(host_element, main_frame)); }
static NonnullRefPtr<Frame> create(Page& page) { return adopt(*new Frame(page)); }
~Frame();
bool is_main_frame() const { return this == &m_main_frame; }
const DOM::Document* document() const { return m_document; }
DOM::Document* document() { return m_document; }
void set_document(DOM::Document*);
Page& page() { return m_page; }
const Page& page() const { return m_page; }
const Gfx::IntSize& size() const { return m_size; }
void set_size(const Gfx::IntSize&);
void set_needs_display(const Gfx::IntRect&);
void set_viewport_rect(const Gfx::IntRect&);
Gfx::IntRect viewport_rect() const { return m_viewport_rect; }
void did_scroll(Badge<PageView>);
FrameLoader& loader() { return m_loader; }
const FrameLoader& loader() const { return m_loader; }
EventHandler& event_handler() { return m_event_handler; }
const EventHandler& event_handler() const { return m_event_handler; }
void scroll_to(const Gfx::IntPoint&);
void scroll_to_anchor(const String&);
Frame& main_frame() { return m_main_frame; }
const Frame& main_frame() const { return m_main_frame; }
DOM::Element* host_element() { return m_host_element; }
const DOM::Element* host_element() const { return m_host_element; }
Gfx::IntPoint to_main_frame_position(const Gfx::IntPoint&);
Gfx::IntRect to_main_frame_rect(const Gfx::IntRect&);
private:
explicit Frame(DOM::Element& host_element, Frame& main_frame);
explicit Frame(Page&);
Page& m_page;
Frame& m_main_frame;
FrameLoader m_loader;
EventHandler m_event_handler;
WeakPtr<DOM::Element> m_host_element;
RefPtr<DOM::Document> m_document;
Gfx::IntSize m_size;
Gfx::IntRect m_viewport_rect;
};
}

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Libraries/LibWeb/Page/Page.cpp Normal file
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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibWeb/Page/Frame.h>
#include <LibWeb/Page/Page.h>
#include <LibWeb/PageView.h>
namespace Web {
Page::Page(PageClient& client)
: m_client(client)
{
m_main_frame = Frame::create(*this);
}
Page::~Page()
{
}
void Page::load(const URL& url)
{
main_frame().loader().load(url, FrameLoader::Type::Navigation);
}
Gfx::Palette Page::palette() const
{
return m_client.palette();
}
bool Page::handle_mouseup(const Gfx::IntPoint& position, unsigned button, unsigned modifiers)
{
return main_frame().event_handler().handle_mouseup(position, button, modifiers);
}
bool Page::handle_mousedown(const Gfx::IntPoint& position, unsigned button, unsigned modifiers)
{
return main_frame().event_handler().handle_mousedown(position, button, modifiers);
}
bool Page::handle_mousemove(const Gfx::IntPoint& position, unsigned buttons, unsigned modifiers)
{
return main_frame().event_handler().handle_mousemove(position, buttons, modifiers);
}
}

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Libraries/LibWeb/Page/Page.h Normal file
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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/Noncopyable.h>
#include <AK/OwnPtr.h>
#include <AK/RefPtr.h>
#include <LibGUI/Window.h>
#include <LibGfx/Forward.h>
#include <LibGfx/Palette.h>
#include <LibWeb/Forward.h>
namespace Web {
class PageClient;
class Page {
AK_MAKE_NONCOPYABLE(Page);
AK_MAKE_NONMOVABLE(Page);
public:
explicit Page(PageClient&);
~Page();
PageClient& client() { return m_client; }
const PageClient& client() const { return m_client; }
Web::Frame& main_frame() { return *m_main_frame; }
const Web::Frame& main_frame() const { return *m_main_frame; }
void load(const URL&);
bool handle_mouseup(const Gfx::IntPoint&, unsigned button, unsigned modifiers);
bool handle_mousedown(const Gfx::IntPoint&, unsigned button, unsigned modifiers);
bool handle_mousemove(const Gfx::IntPoint&, unsigned buttons, unsigned modifiers);
Gfx::Palette palette() const;
private:
PageClient& m_client;
RefPtr<Frame> m_main_frame;
};
class PageClient {
public:
virtual Gfx::Palette palette() const = 0;
virtual void page_did_set_document_in_main_frame(DOM::Document*) { }
virtual void page_did_change_title(const String&) { }
virtual void page_did_start_loading(const URL&) { }
virtual void page_did_change_selection() { }
virtual void page_did_request_cursor_change(GUI::StandardCursor) { }
virtual void page_did_request_context_menu(const Gfx::IntPoint&) { }
virtual void page_did_request_link_context_menu(const Gfx::IntPoint&, const URL&, [[maybe_unused]] const String& target, [[maybe_unused]] unsigned modifiers) { }
virtual void page_did_click_link(const URL&, [[maybe_unused]] const String& target, [[maybe_unused]] unsigned modifiers) { }
virtual void page_did_middle_click_link(const URL&, [[maybe_unused]] const String& target, [[maybe_unused]] unsigned modifiers) { }
virtual void page_did_enter_tooltip_area(const Gfx::IntPoint&, const String&) { }
virtual void page_did_leave_tooltip_area() { }
virtual void page_did_hover_link(const URL&) { }
virtual void page_did_unhover_link() { }
virtual void page_did_invalidate(const Gfx::IntRect&) { }
virtual void page_did_change_favicon(const Gfx::Bitmap&) { }
virtual void page_did_layout() { }
virtual void page_did_request_scroll_into_view(const Gfx::IntRect&) { }
};
}