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/*
* Copyright (C) 2010 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 "RenderInputSpeech.h"
#if ENABLE(INPUT_SPEECH)
#include "GraphicsContext.h"
#include "HTMLNames.h"
#include "PaintInfo.h"
#include "RenderBox.h"
#include "TextControlInnerElements.h"
namespace WebCore {
static const float defaultControlFontPixelSize = 13;
static const float defaultSpeechButtonSize = 16;
static const float minSpeechButtonSize = 8;
static const float maxSpeechButtonSize = 40;
void RenderInputSpeech::adjustInputFieldSpeechButtonStyle(CSSStyleSelector*, RenderStyle* style, Element*)
{
// Scale the button size based on the font size.
float fontScale = style->fontSize() / defaultControlFontPixelSize;
int speechButtonSize = lroundf(std::min(std::max(minSpeechButtonSize, defaultSpeechButtonSize * fontScale), maxSpeechButtonSize));
style->setWidth(Length(speechButtonSize, Fixed));
style->setHeight(Length(speechButtonSize, Fixed));
}
bool RenderInputSpeech::paintInputFieldSpeechButton(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
{
Element* element = object->node()->isElementNode() ? toElement(object->node()) : 0;
if (!element || !element->isInputFieldSpeechButtonElement())
return false;
// Get the renderer of <input> element.
Node* input = object->node()->shadowAncestorNode();
if (!input->renderer()->isBox())
return false;
RenderBox* inputRenderBox = toRenderBox(input->renderer());
IntRect inputContentBox = inputRenderBox->contentBoxRect();
// Make sure the scaled button stays square and will fit in its parent's box.
int buttonSize = std::min(inputContentBox.width(), std::min(inputContentBox.height(), rect.height()));
// Calculate button's coordinates relative to the input element.
// Center the button vertically. Round up though, so if it has to be one pixel off-center, it will
// be one pixel closer to the bottom of the field. This tends to look better with the text.
IntRect buttonRect(object->offsetFromAncestorContainer(inputRenderBox).width(),
inputContentBox.y() + (inputContentBox.height() - buttonSize + 1) / 2,
buttonSize, buttonSize);
// Compute an offset between the part renderer and the input renderer.
IntSize offsetFromInputRenderer = -(object->offsetFromAncestorContainer(inputRenderBox));
// Move the rect into partRenderer's coords.
buttonRect.move(offsetFromInputRenderer);
// Account for the local drawing offset.
buttonRect.move(rect.x(), rect.y());
DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateNormal, (Image::loadPlatformResource("inputSpeech")));
DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateRecording, (Image::loadPlatformResource("inputSpeechRecording")));
DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateWaiting, (Image::loadPlatformResource("inputSpeechWaiting")));
InputFieldSpeechButtonElement* speechButton = toInputFieldSpeechButtonElement(element);
Image* image = imageStateNormal.get();
if (speechButton->state() == InputFieldSpeechButtonElement::Recording)
image = imageStateRecording.get();
else if (speechButton->state() == InputFieldSpeechButtonElement::Recognizing)
image = imageStateWaiting.get();
paintInfo.context->drawImage(image, object->style()->colorSpace(), buttonRect);
return false;
}
} // namespace WebCore
#endif // ENABLE(INPUT_SPEECH)
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