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32 #include "RenderInputSpeech.h"
34 #if ENABLE(INPUT_SPEECH)
36 #include "GraphicsContext.h"
37 #include "HTMLNames.h"
38 #include "PaintInfo.h"
39 #include "RenderBox.h"
40 #include "TextControlInnerElements.h"
44 static const float defaultControlFontPixelSize = 13;
45 static const float defaultSpeechButtonSize = 16;
46 static const float minSpeechButtonSize = 8;
47 static const float maxSpeechButtonSize = 40;
49 void RenderInputSpeech::adjustInputFieldSpeechButtonStyle(CSSStyleSelector*, RenderStyle* style, Element*)
51 // Scale the button size based on the font size.
52 float fontScale = style->fontSize() / defaultControlFontPixelSize;
53 int speechButtonSize = lroundf(std::min(std::max(minSpeechButtonSize, defaultSpeechButtonSize * fontScale), maxSpeechButtonSize));
54 style->setWidth(Length(speechButtonSize, Fixed));
55 style->setHeight(Length(speechButtonSize, Fixed));
58 bool RenderInputSpeech::paintInputFieldSpeechButton(RenderObject* object, const PaintInfo& paintInfo, const IntRect& rect)
60 Element* element = object->node()->isElementNode() ? toElement(object->node()) : 0;
61 if (!element || !element->isInputFieldSpeechButtonElement())
64 // Get the renderer of <input> element.
65 Node* input = object->node()->shadowAncestorNode();
66 if (!input->renderer()->isBox())
68 RenderBox* inputRenderBox = toRenderBox(input->renderer());
69 IntRect inputContentBox = inputRenderBox->contentBoxRect();
71 // Make sure the scaled button stays square and will fit in its parent's box.
72 int buttonSize = std::min(inputContentBox.width(), std::min(inputContentBox.height(), rect.height()));
73 // Calculate button's coordinates relative to the input element.
74 // Center the button vertically. Round up though, so if it has to be one pixel off-center, it will
75 // be one pixel closer to the bottom of the field. This tends to look better with the text.
76 IntRect buttonRect(object->offsetFromAncestorContainer(inputRenderBox).width(),
77 inputContentBox.y() + (inputContentBox.height() - buttonSize + 1) / 2,
78 buttonSize, buttonSize);
80 // Compute an offset between the part renderer and the input renderer.
81 IntSize offsetFromInputRenderer = -(object->offsetFromAncestorContainer(inputRenderBox));
82 // Move the rect into partRenderer's coords.
83 buttonRect.move(offsetFromInputRenderer);
84 // Account for the local drawing offset.
85 buttonRect.moveBy(rect.location());
87 DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateNormal, (Image::loadPlatformResource("inputSpeech")));
88 DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateRecording, (Image::loadPlatformResource("inputSpeechRecording")));
89 DEFINE_STATIC_LOCAL(RefPtr<Image>, imageStateWaiting, (Image::loadPlatformResource("inputSpeechWaiting")));
91 InputFieldSpeechButtonElement* speechButton = toInputFieldSpeechButtonElement(element);
92 Image* image = imageStateNormal.get();
93 if (speechButton->state() == InputFieldSpeechButtonElement::Recording)
94 image = imageStateRecording.get();
95 else if (speechButton->state() == InputFieldSpeechButtonElement::Recognizing)
96 image = imageStateWaiting.get();
97 paintInfo.context->drawImage(image, object->style()->colorSpace(), buttonRect);
102 } // namespace WebCore
104 #endif // ENABLE(INPUT_SPEECH)