author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 27 Apr 2010 17:46:17 +0300 | |
branch | RCL_3 |
changeset 67 | 4917f9bf7995 |
parent 0 | dd21522fd290 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Library General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Library General Public License for more details. |
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* |
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* You should have received a copy of the GNU Library General Public License |
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* along with this library; see the file COPYING.LIB. If not, write to |
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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* Boston, MA 02110-1301, USA. |
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* |
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*/ |
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|
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#include "config.h" |
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#include "RenderFileUploadControl.h" |
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#include "FrameView.h" |
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#include "GraphicsContext.h" |
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#include "HTMLInputElement.h" |
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#include "HTMLNames.h" |
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#include "Icon.h" |
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#include "LocalizedStrings.h" |
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#include "RenderButton.h" |
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#include "RenderText.h" |
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#include "RenderTheme.h" |
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#include "RenderView.h" |
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#include "TextStyle.h" |
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#include <math.h> |
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using namespace std; |
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namespace WebCore { |
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using namespace HTMLNames; |
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const int afterButtonSpacing = 4; |
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const int iconHeight = 16; |
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const int iconWidth = 16; |
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const int iconFilenameSpacing = 2; |
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const int defaultWidthNumChars = 34; |
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const int buttonShadowHeight = 2; |
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class HTMLFileUploadInnerButtonElement : public HTMLInputElement { |
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public: |
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HTMLFileUploadInnerButtonElement(Document*, Node* shadowParent); |
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virtual bool isShadowNode() const { return true; } |
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virtual Node* shadowParentNode() { return m_shadowParent; } |
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private: |
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Node* m_shadowParent; |
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}; |
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RenderFileUploadControl::RenderFileUploadControl(HTMLInputElement* input) |
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: RenderBlock(input) |
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, m_button(0) |
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, m_fileChooser(FileChooser::create(this, input->value())) |
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{ |
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} |
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RenderFileUploadControl::~RenderFileUploadControl() |
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{ |
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if (m_button) |
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m_button->detach(); |
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m_fileChooser->disconnectClient(); |
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} |
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void RenderFileUploadControl::setStyle(RenderStyle* newStyle) |
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{ |
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// Force text-align to match the direction |
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if (newStyle->direction() == LTR) |
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newStyle->setTextAlign(LEFT); |
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else |
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newStyle->setTextAlign(RIGHT); |
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RenderBlock::setStyle(newStyle); |
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if (m_button) |
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m_button->renderer()->setStyle(createButtonStyle(newStyle)); |
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setReplaced(isInline()); |
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} |
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void RenderFileUploadControl::valueChanged() |
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{ |
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// onChange may destroy this renderer |
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RefPtr<FileChooser> fileChooser = m_fileChooser; |
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HTMLInputElement* inputElement = static_cast<HTMLInputElement*>(node()); |
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inputElement->setValueFromRenderer(fileChooser->filename()); |
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inputElement->onChange(); |
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// only repaint if it doesn't seem we have been destroyed |
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if (!fileChooser->disconnected()) |
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repaint(); |
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} |
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void RenderFileUploadControl::click() |
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{ |
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m_fileChooser->openFileChooser(node()->document()); |
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} |
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void RenderFileUploadControl::updateFromElement() |
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{ |
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HTMLInputElement* inputElement = static_cast<HTMLInputElement*>(node()); |
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|
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if (!m_button) { |
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m_button = new HTMLFileUploadInnerButtonElement(document(), inputElement); |
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m_button->setInputType("button"); |
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m_button->setValue(fileButtonChooseFileLabel()); |
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RenderStyle* buttonStyle = createButtonStyle(style()); |
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RenderObject* renderer = m_button->createRenderer(renderArena(), buttonStyle); |
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m_button->setRenderer(renderer); |
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renderer->setStyle(buttonStyle); |
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renderer->updateFromElement(); |
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m_button->setAttached(); |
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m_button->setInDocument(true); |
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124 |
|
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addChild(renderer); |
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} |
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|
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m_button->setDisabled(!theme()->isEnabled(this)); |
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|
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// This only supports clearing out the filename, but that's OK because for |
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// security reasons that's the only change the DOM is allowed to make. |
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if (inputElement->value().isEmpty() && !m_fileChooser->filename().isEmpty()) { |
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m_fileChooser->clear(); |
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repaint(); |
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} |
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} |
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137 |
|
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int RenderFileUploadControl::maxFilenameWidth() const |
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{ |
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return max(0, contentWidth() - m_button->renderer()->width() - afterButtonSpacing |
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- (m_fileChooser->icon() ? iconWidth + iconFilenameSpacing : 0)); |
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} |
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|
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RenderStyle* RenderFileUploadControl::createButtonStyle(RenderStyle* parentStyle) const |
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{ |
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RenderStyle* style = getPseudoStyle(RenderStyle::FILE_UPLOAD_BUTTON); |
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if (!style) { |
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style = new (renderArena()) RenderStyle; |
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if (parentStyle) |
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style->inheritFrom(parentStyle); |
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} |
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|
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// Button text will wrap on file upload controls with widths smaller than the intrinsic button width |
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// without this setWhiteSpace. |
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style->setWhiteSpace(NOWRAP); |
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156 |
|
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return style; |
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} |
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159 |
|
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void RenderFileUploadControl::paintObject(PaintInfo& paintInfo, int tx, int ty) |
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{ |
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if (style()->visibility() != VISIBLE) |
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return; |
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164 |
|
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// Push a clip. |
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if (paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseChildBlockBackgrounds) { |
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IntRect clipRect(tx + borderLeft(), ty + borderTop(), |
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width() - borderLeft() - borderRight(), height() - borderBottom() - borderTop() + buttonShadowHeight); |
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#if PLATFORM(SYMBIAN) |
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clipRect = intersection(clipRect, paintInfo.rect); |
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#endif |
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if (clipRect.isEmpty()) |
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return; |
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paintInfo.context->save(); |
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paintInfo.context->clip(clipRect); |
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176 |
} |
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177 |
|
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if (paintInfo.phase == PaintPhaseForeground) { |
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const String& displayedFilename = m_fileChooser->basenameForWidth(style()->font(), maxFilenameWidth()); |
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unsigned length = displayedFilename.length(); |
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const UChar* string = displayedFilename.characters(); |
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TextStyle textStyle(0, 0, 0, style()->direction() == RTL, style()->unicodeBidi() == Override); |
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183 |
TextRun textRun(string, length); |
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184 |
|
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// Determine where the filename should be placed |
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int contentLeft = tx + borderLeft() + paddingLeft(); |
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int buttonAndIconWidth = m_button->renderer()->width() + afterButtonSpacing |
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+ (m_fileChooser->icon() ? iconWidth + iconFilenameSpacing : 0); |
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int textX; |
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190 |
if (style()->direction() == LTR) |
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textX = contentLeft + buttonAndIconWidth; |
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192 |
else |
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textX = contentLeft + contentWidth() - buttonAndIconWidth - style()->font().width(textRun); |
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194 |
// We want to match the button's baseline |
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RenderButton* buttonRenderer = static_cast<RenderButton*>(m_button->renderer()); |
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int textY = buttonRenderer->absoluteBoundingBoxRect().y() |
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+ buttonRenderer->marginTop() + buttonRenderer->borderTop() + buttonRenderer->paddingTop() |
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198 |
+ buttonRenderer->baselinePosition(true, false); |
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199 |
|
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paintInfo.context->setFont(style()->font()); |
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201 |
paintInfo.context->setFillColor(style()->color()); |
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202 |
|
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203 |
// Draw the filename |
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204 |
paintInfo.context->drawBidiText(textRun, IntPoint(textX, textY), textStyle); |
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205 |
|
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206 |
if (m_fileChooser->icon()) { |
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207 |
// Determine where the icon should be placed |
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int iconY = ty + borderTop() + paddingTop() + (contentHeight() - iconHeight) / 2; |
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209 |
int iconX; |
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210 |
if (style()->direction() == LTR) |
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211 |
iconX = contentLeft + m_button->renderer()->width() + afterButtonSpacing; |
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212 |
else |
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iconX = contentLeft + contentWidth() - m_button->renderer()->width() - afterButtonSpacing - iconWidth; |
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214 |
|
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215 |
// Draw the file icon |
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m_fileChooser->icon()->paint(paintInfo.context, IntRect(iconX, iconY, iconWidth, iconHeight)); |
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} |
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} |
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// Paint the children. |
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RenderBlock::paintObject(paintInfo, tx, ty); |
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// Pop the clip. |
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if (paintInfo.phase == PaintPhaseForeground || paintInfo.phase == PaintPhaseChildBlockBackgrounds) |
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paintInfo.context->restore(); |
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} |
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void RenderFileUploadControl::calcPrefWidths() |
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{ |
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ASSERT(prefWidthsDirty()); |
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m_minPrefWidth = 0; |
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m_maxPrefWidth = 0; |
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if (style()->width().isFixed() && style()->width().value() > 0) |
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m_minPrefWidth = m_maxPrefWidth = calcContentBoxWidth(style()->width().value()); |
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else { |
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// Figure out how big the filename space needs to be for a given number of characters |
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// (using "0" as the nominal character). |
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const UChar ch = '0'; |
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float charWidth = style()->font().floatWidth(TextRun(&ch, 1), TextStyle(0, 0, 0, false, false, false)); |
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m_maxPrefWidth = (int)ceilf(charWidth * defaultWidthNumChars); |
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} |
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if (style()->minWidth().isFixed() && style()->minWidth().value() > 0) { |
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m_maxPrefWidth = max(m_maxPrefWidth, calcContentBoxWidth(style()->minWidth().value())); |
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m_minPrefWidth = max(m_minPrefWidth, calcContentBoxWidth(style()->minWidth().value())); |
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} else if (style()->width().isPercent() || (style()->width().isAuto() && style()->height().isPercent())) |
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m_minPrefWidth = 0; |
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else |
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m_minPrefWidth = m_maxPrefWidth; |
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if (style()->maxWidth().isFixed() && style()->maxWidth().value() != undefinedLength) { |
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m_maxPrefWidth = min(m_maxPrefWidth, calcContentBoxWidth(style()->maxWidth().value())); |
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m_minPrefWidth = min(m_minPrefWidth, calcContentBoxWidth(style()->maxWidth().value())); |
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} |
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int toAdd = paddingLeft() + paddingRight() + borderLeft() + borderRight(); |
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m_minPrefWidth += toAdd; |
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m_maxPrefWidth += toAdd; |
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setPrefWidthsDirty(false); |
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} |
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void RenderFileUploadControl::receiveDroppedFile(const String& filename) |
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{ |
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m_fileChooser->chooseFile(filename); |
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} |
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HTMLFileUploadInnerButtonElement::HTMLFileUploadInnerButtonElement(Document* doc, Node* shadowParent) |
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: HTMLInputElement(doc) |
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, m_shadowParent(shadowParent) |
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{ |
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} |
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} // namespace WebCore |