1 files changed, 99 insertions, 0 deletions
diff --git a/Source/WebCore/rendering/RenderInputSpeech.cpp b/Source/WebCore/rendering/RenderInputSpeech.cpp
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+++ b/Source/WebCore/rendering/RenderInputSpeech.cpp
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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 "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)
+{
+    // 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 = reinterpret_cast<InputFieldSpeechButtonElement*>(object->node());
+    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)