392b055806
This makes it possible to click links that are above other content due to stacking context order (e.g via CSS z-index.)
121 lines
4.3 KiB
C++
121 lines
4.3 KiB
C++
/*
|
|
* 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/Dump.h>
|
|
#include <LibWeb/Frame/Frame.h>
|
|
#include <LibWeb/Layout/LayoutDocument.h>
|
|
#include <LibWeb/Layout/LayoutImage.h>
|
|
#include <LibWeb/Layout/LayoutWidget.h>
|
|
#include <LibWeb/Painting/StackingContext.h>
|
|
|
|
namespace Web {
|
|
|
|
LayoutDocument::LayoutDocument(Document& document, NonnullRefPtr<StyleProperties> style)
|
|
: LayoutBlock(document, &document, move(style))
|
|
{
|
|
}
|
|
|
|
LayoutDocument::~LayoutDocument()
|
|
{
|
|
}
|
|
|
|
void LayoutDocument::build_stacking_context_tree()
|
|
{
|
|
if (stacking_context())
|
|
return;
|
|
|
|
set_stacking_context(make<StackingContext>(*this, nullptr));
|
|
|
|
for_each_in_subtree_of_type<LayoutBox>([&](LayoutBox& box) {
|
|
if (&box == this)
|
|
return IterationDecision::Continue;
|
|
if (!box.establishes_stacking_context()) {
|
|
ASSERT(!box.stacking_context());
|
|
return IterationDecision::Continue;
|
|
}
|
|
auto* parent_context = box.enclosing_stacking_context();
|
|
ASSERT(parent_context);
|
|
box.set_stacking_context(make<StackingContext>(box, parent_context));
|
|
return IterationDecision::Continue;
|
|
});
|
|
}
|
|
|
|
void LayoutDocument::layout(LayoutMode layout_mode)
|
|
{
|
|
build_stacking_context_tree();
|
|
|
|
set_width(frame().size().width());
|
|
|
|
LayoutNode::layout(layout_mode);
|
|
|
|
ASSERT(!children_are_inline());
|
|
|
|
float lowest_bottom = 0;
|
|
for_each_child([&](auto& child) {
|
|
ASSERT(is<LayoutBlock>(child));
|
|
auto& child_block = to<LayoutBlock>(child);
|
|
lowest_bottom = max(lowest_bottom, child_block.absolute_rect().bottom());
|
|
});
|
|
set_height(lowest_bottom);
|
|
|
|
layout_absolutely_positioned_descendants();
|
|
|
|
// FIXME: This is a total hack. Make sure any GUI::Widgets are moved into place after layout.
|
|
// We should stop embedding GUI::Widgets entirely, since that won't work out-of-process.
|
|
for_each_in_subtree_of_type<LayoutWidget>([&](auto& widget) {
|
|
widget.update_widget();
|
|
return IterationDecision::Continue;
|
|
});
|
|
}
|
|
|
|
void LayoutDocument::did_set_viewport_rect(Badge<Frame>, const Gfx::IntRect& a_viewport_rect)
|
|
{
|
|
Gfx::FloatRect viewport_rect(a_viewport_rect.x(), a_viewport_rect.y(), a_viewport_rect.width(), a_viewport_rect.height());
|
|
for_each_in_subtree_of_type<LayoutImage>([&](auto& layout_image) {
|
|
const_cast<LayoutImage&>(layout_image).set_visible_in_viewport({}, viewport_rect.intersects(layout_image.absolute_rect()));
|
|
return IterationDecision::Continue;
|
|
});
|
|
}
|
|
|
|
void LayoutDocument::paint_all_phases(PaintContext& context)
|
|
{
|
|
paint(context, PaintPhase::Background);
|
|
paint(context, PaintPhase::Border);
|
|
paint(context, PaintPhase::Foreground);
|
|
paint(context, PaintPhase::Overlay);
|
|
}
|
|
|
|
void LayoutDocument::paint(PaintContext& context, PaintPhase phase)
|
|
{
|
|
stacking_context()->paint(context, phase);
|
|
}
|
|
|
|
HitTestResult LayoutDocument::hit_test(const Gfx::IntPoint& position) const
|
|
{
|
|
return stacking_context()->hit_test(position);
|
|
}
|
|
|
|
}
|