29a2aac89a
Text <input> fields will now generate a basic shadow DOM and attach it to the input element. The shadow DOM contains a <div> with some inline style, and an always- editable text node inside it. Accessing the "value" attribute on such an input element will get/set the value from that text node. This is really cool, although not super stable since HTML editing is not super stable. But it's a start! :^)
137 lines
4.5 KiB
C++
137 lines
4.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibGfx/FontDatabase.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/DOM/ShadowRoot.h>
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#include <LibWeb/DOM/Text.h>
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#include <LibWeb/HTML/EventNames.h>
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#include <LibWeb/HTML/HTMLFormElement.h>
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#include <LibWeb/HTML/HTMLInputElement.h>
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#include <LibWeb/InProcessWebView.h>
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#include <LibWeb/Layout/BlockBox.h>
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#include <LibWeb/Layout/ButtonBox.h>
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#include <LibWeb/Layout/CheckBox.h>
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#include <LibWeb/Page/Frame.h>
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namespace Web::HTML {
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HTMLInputElement::HTMLInputElement(DOM::Document& document, QualifiedName qualified_name)
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: HTMLElement(document, move(qualified_name))
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{
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}
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HTMLInputElement::~HTMLInputElement()
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{
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}
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void HTMLInputElement::did_click_button(Badge<Layout::ButtonBox>)
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{
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// FIXME: This should be a PointerEvent.
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dispatch_event(DOM::Event::create(EventNames::click));
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if (type().equals_ignoring_case("submit")) {
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if (auto* form = first_ancestor_of_type<HTMLFormElement>()) {
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form->submit_form(this);
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}
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return;
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}
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}
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RefPtr<Layout::Node> HTMLInputElement::create_layout_node()
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{
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if (type() == "hidden")
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return nullptr;
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auto style = document().style_resolver().resolve_style(*this);
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if (style->display() == CSS::Display::None)
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return nullptr;
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if (type().equals_ignoring_case("submit") || type().equals_ignoring_case("button"))
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return adopt(*new Layout::ButtonBox(document(), *this, move(style)));
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if (type() == "checkbox")
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return adopt(*new Layout::CheckBox(document(), *this, move(style)));
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create_shadow_tree_if_needed();
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auto layout_node = adopt(*new Layout::BlockBox(document(), this, move(style)));
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layout_node->set_inline(true);
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return layout_node;
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}
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void HTMLInputElement::set_checked(bool checked)
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{
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if (m_checked == checked)
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return;
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m_checked = checked;
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if (layout_node())
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layout_node()->set_needs_display();
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dispatch_event(DOM::Event::create(EventNames::change));
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}
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bool HTMLInputElement::enabled() const
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{
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return !has_attribute(HTML::AttributeNames::disabled);
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}
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String HTMLInputElement::value() const
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{
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if (m_text_node)
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return m_text_node->data();
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return default_value();
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}
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void HTMLInputElement::set_value(String value)
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{
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if (m_text_node) {
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m_text_node->set_data(move(value));
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return;
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}
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set_attribute(HTML::AttributeNames::value, move(value));
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}
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void HTMLInputElement::create_shadow_tree_if_needed()
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{
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if (shadow_root())
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return;
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// FIXME: This assumes that we want a text box. Is that always true?
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auto shadow_root = adopt(*new DOM::ShadowRoot(document(), *this));
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auto initial_value = attribute(HTML::AttributeNames::value);
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if (initial_value.is_null())
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initial_value = String::empty();
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auto element = document().create_element(HTML::TagNames::div);
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element->set_attribute(HTML::AttributeNames::style, "white-space: pre");
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m_text_node = adopt(*new DOM::Text(document(), initial_value));
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m_text_node->set_always_editable(true);
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element->append_child(*m_text_node);
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shadow_root->append_child(move(element));
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set_shadow_root(move(shadow_root));
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}
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}
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