| /* |
| * Copyright (C) 2012 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * 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 |
| * OWNER 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 "config.h" |
| #include "core/html/shadow/TextFieldDecorationElement.h" |
| |
| #include "CSSPropertyNames.h" |
| #include "CSSValueKeywords.h" |
| #include "core/css/resolver/StyleResolver.h" |
| #include "core/dom/ElementShadow.h" |
| #include "core/dom/Event.h" |
| #include "core/dom/NodeRenderStyle.h" |
| #include "core/dom/ShadowRoot.h" |
| #include "core/html/HTMLInputElement.h" |
| #include "core/html/shadow/HTMLShadowElement.h" |
| #include "core/rendering/RenderImage.h" |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| // TextFieldDecorator ---------------------------------------------------------------- |
| |
| TextFieldDecorator::~TextFieldDecorator() |
| { |
| } |
| |
| // TextFieldDecorationElement ---------------------------------------------------------------- |
| |
| // FIXME: This class is only used in Chromium, and has no layout tests!! |
| |
| TextFieldDecorationElement::TextFieldDecorationElement(Document* document, TextFieldDecorator* decorator) |
| : HTMLDivElement(HTMLNames::divTag, document) |
| , m_textFieldDecorator(decorator) |
| , m_isInHoverState(false) |
| { |
| ASSERT(decorator); |
| setHasCustomStyleCallbacks(); |
| } |
| |
| PassRefPtr<TextFieldDecorationElement> TextFieldDecorationElement::create(Document* document, TextFieldDecorator* decorator) |
| { |
| return adoptRef(new TextFieldDecorationElement(document, decorator)); |
| } |
| |
| TextFieldDecorationElement* TextFieldDecorationElement::fromShadowRoot(ShadowRoot* shadowRoot) |
| { |
| if (!shadowRoot->firstChild() |
| || !shadowRoot->firstChild()->lastChild() |
| || !shadowRoot->firstChild()->lastChild()->isElementNode() |
| || !toElement(shadowRoot->firstChild()->lastChild())->isTextFieldDecoration()) |
| return 0; |
| return toTextFieldDecorationElement(shadowRoot->firstChild()->lastChild()); |
| } |
| |
| static inline void getDecorationRootAndDecoratedRoot(HTMLInputElement* input, ShadowRoot*& decorationRoot, ShadowRoot*& decoratedRoot) |
| { |
| ShadowRoot* existingRoot = input->youngestShadowRoot(); |
| ShadowRoot* newRoot = 0; |
| while (existingRoot->childNodeCount() == 1 && existingRoot->firstChild()->hasTagName(shadowTag)) { |
| newRoot = existingRoot; |
| existingRoot = existingRoot->olderShadowRoot(); |
| ASSERT(existingRoot); |
| } |
| if (newRoot) |
| newRoot->removeChild(newRoot->firstChild()); |
| else { |
| // FIXME: This interacts really badly with author shadow roots because now |
| // we can interleave user agent and author shadow roots on the element meaning |
| // input.shadowRoot may be inaccessible if the browser has decided to decorate |
| // the input. |
| newRoot = input->ensureShadow()->addShadowRoot(input, ShadowRoot::UserAgentShadowRoot); |
| } |
| decorationRoot = newRoot; |
| decoratedRoot = existingRoot; |
| } |
| |
| void TextFieldDecorationElement::decorate(HTMLInputElement* input, bool visible) |
| { |
| ASSERT(input); |
| ShadowRoot* existingRoot; |
| ShadowRoot* decorationRoot; |
| getDecorationRootAndDecoratedRoot(input, decorationRoot, existingRoot); |
| ASSERT(decorationRoot); |
| ASSERT(existingRoot); |
| RefPtr<HTMLDivElement> box = HTMLDivElement::create(input->document()); |
| decorationRoot->appendChild(box); |
| box->setInlineStyleProperty(CSSPropertyDisplay, CSSValueWebkitFlex); |
| box->setInlineStyleProperty(CSSPropertyWebkitAlignItems, CSSValueCenter); |
| ASSERT(existingRoot->childNodeCount() == 1); |
| toHTMLElement(existingRoot->firstChild())->setInlineStyleProperty(CSSPropertyWebkitFlexGrow, 1.0, CSSPrimitiveValue::CSS_NUMBER); |
| box->appendChild(HTMLShadowElement::create(HTMLNames::shadowTag, input->document())); |
| setInlineStyleProperty(CSSPropertyDisplay, visible ? CSSValueBlock : CSSValueNone); |
| box->appendChild(this); |
| } |
| |
| inline HTMLInputElement* TextFieldDecorationElement::hostInput() |
| { |
| // TextFieldDecorationElement is created only by C++ code, and it is always |
| // in <input> shadow. |
| ASSERT_WITH_SECURITY_IMPLICATION(!shadowHost() || shadowHost()->hasTagName(inputTag)); |
| return static_cast<HTMLInputElement*>(shadowHost()); |
| } |
| |
| bool TextFieldDecorationElement::isTextFieldDecoration() const |
| { |
| return true; |
| } |
| |
| void TextFieldDecorationElement::updateImage() |
| { |
| if (!renderer() || !renderer()->isImage()) |
| return; |
| RenderImageResource* resource = toRenderImage(renderer())->imageResource(); |
| CachedImage* image; |
| if (hostInput()->isDisabledFormControl()) |
| image = m_textFieldDecorator->imageForDisabledState(); |
| else if (hostInput()->isReadOnly()) |
| image = m_textFieldDecorator->imageForReadonlyState(); |
| else if (m_isInHoverState) |
| image = m_textFieldDecorator->imageForHoverState(); |
| else |
| image = m_textFieldDecorator->imageForNormalState(); |
| ASSERT(image); |
| resource->setCachedImage(image); |
| } |
| |
| PassRefPtr<RenderStyle> TextFieldDecorationElement::customStyleForRenderer() |
| { |
| RefPtr<RenderStyle> originalStyle = document()->styleResolver()->styleForElement(this); |
| RefPtr<RenderStyle> style = RenderStyle::clone(originalStyle.get()); |
| RenderStyle* inputStyle = hostInput()->renderStyle(); |
| ASSERT(inputStyle); |
| style->setWidth(Length(inputStyle->fontSize(), Fixed)); |
| style->setHeight(Length(inputStyle->fontSize(), Fixed)); |
| updateImage(); |
| return style.release(); |
| } |
| |
| RenderObject* TextFieldDecorationElement::createRenderer(RenderArena* arena, RenderStyle*) |
| { |
| RenderImage* image = new (arena) RenderImage(this); |
| image->setImageResource(RenderImageResource::create()); |
| return image; |
| } |
| |
| void TextFieldDecorationElement::attach() |
| { |
| HTMLDivElement::attach(); |
| updateImage(); |
| } |
| |
| void TextFieldDecorationElement::detach() |
| { |
| m_textFieldDecorator->willDetach(hostInput()); |
| HTMLDivElement::detach(); |
| } |
| |
| bool TextFieldDecorationElement::isMouseFocusable() const |
| { |
| return false; |
| } |
| |
| void TextFieldDecorationElement::defaultEventHandler(Event* event) |
| { |
| RefPtr<HTMLInputElement> input(hostInput()); |
| if (!input || input->isDisabledOrReadOnly() || !event->isMouseEvent()) { |
| if (!event->defaultHandled()) |
| HTMLDivElement::defaultEventHandler(event); |
| return; |
| } |
| |
| RefPtr<TextFieldDecorationElement> protector(this); |
| if (event->type() == eventNames().clickEvent) { |
| m_textFieldDecorator->handleClick(input.get()); |
| event->setDefaultHandled(); |
| } |
| |
| if (event->type() == eventNames().mouseoverEvent) { |
| m_isInHoverState = true; |
| updateImage(); |
| } |
| |
| if (event->type() == eventNames().mouseoutEvent) { |
| m_isInHoverState = false; |
| updateImage(); |
| } |
| |
| if (!event->defaultHandled()) |
| HTMLDivElement::defaultEventHandler(event); |
| } |
| |
| bool TextFieldDecorationElement::willRespondToMouseMoveEvents() |
| { |
| const HTMLInputElement* input = hostInput(); |
| if (!input->isDisabledOrReadOnly()) |
| return true; |
| |
| return HTMLDivElement::willRespondToMouseMoveEvents(); |
| } |
| |
| bool TextFieldDecorationElement::willRespondToMouseClickEvents() |
| { |
| const HTMLInputElement* input = hostInput(); |
| if (!input->isDisabledOrReadOnly()) |
| return true; |
| |
| return HTMLDivElement::willRespondToMouseClickEvents(); |
| } |
| |
| } // namespace WebCore |