| /** |
| * This file is part of the theme implementation for form controls in WebCore. |
| * |
| * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Computer, Inc. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "core/paint/ThemePainter.h" |
| |
| #include "core/InputTypeNames.h" |
| #include "core/frame/FrameView.h" |
| #include "core/frame/UseCounter.h" |
| #include "core/html/HTMLDataListElement.h" |
| #include "core/html/HTMLDataListOptionsCollection.h" |
| #include "core/html/HTMLInputElement.h" |
| #include "core/html/HTMLOptionElement.h" |
| #include "core/html/parser/HTMLParserIdioms.h" |
| #include "core/html/shadow/ShadowElementNames.h" |
| #include "core/layout/LayoutTheme.h" |
| #include "core/layout/LayoutView.h" |
| #include "core/paint/MediaControlsPainter.h" |
| #include "core/paint/PaintInfo.h" |
| #include "core/style/ComputedStyle.h" |
| #include "platform/Theme.h" |
| #include "platform/graphics/GraphicsContextStateSaver.h" |
| #include "public/platform/Platform.h" |
| #include "public/platform/WebFallbackThemeEngine.h" |
| #include "public/platform/WebRect.h" |
| |
| // The methods in this file are shared by all themes on every platform. |
| |
| namespace blink { |
| |
| static WebFallbackThemeEngine::State getWebFallbackThemeState( |
| const LayoutObject& o) { |
| if (!LayoutTheme::isEnabled(o)) |
| return WebFallbackThemeEngine::StateDisabled; |
| if (LayoutTheme::isPressed(o)) |
| return WebFallbackThemeEngine::StatePressed; |
| if (LayoutTheme::isHovered(o)) |
| return WebFallbackThemeEngine::StateHover; |
| |
| return WebFallbackThemeEngine::StateNormal; |
| } |
| |
| ThemePainter::ThemePainter() {} |
| |
| bool ThemePainter::paint(const LayoutObject& o, |
| const PaintInfo& paintInfo, |
| const IntRect& r) { |
| ControlPart part = o.styleRef().appearance(); |
| |
| if (LayoutTheme::theme().shouldUseFallbackTheme(o.styleRef())) |
| return paintUsingFallbackTheme(o, paintInfo, r); |
| |
| if (part == ButtonPart && o.node()) { |
| UseCounter::count(o.document(), |
| UseCounter::CSSValueAppearanceButtonRendered); |
| if (isHTMLAnchorElement(o.node())) { |
| UseCounter::count(o.document(), |
| UseCounter::CSSValueAppearanceButtonForAnchor); |
| } else if (isHTMLButtonElement(o.node())) { |
| UseCounter::count(o.document(), |
| UseCounter::CSSValueAppearanceButtonForButton); |
| } else if (isHTMLInputElement(o.node()) && |
| toHTMLInputElement(o.node())->isTextButton()) { |
| // Text buttons (type=button, reset, submit) has |
| // -webkit-appearance:push-button by default. |
| UseCounter::count(o.node()->document(), |
| UseCounter::CSSValueAppearanceButtonForOtherButtons); |
| } |
| } |
| |
| // Call the appropriate paint method based off the appearance value. |
| switch (part) { |
| case CheckboxPart: |
| return paintCheckbox(o, paintInfo, r); |
| case RadioPart: |
| return paintRadio(o, paintInfo, r); |
| case PushButtonPart: |
| case SquareButtonPart: |
| case ButtonPart: |
| return paintButton(o, paintInfo, r); |
| case InnerSpinButtonPart: |
| return paintInnerSpinButton(o, paintInfo, r); |
| case MenulistPart: |
| return paintMenuList(o, paintInfo, r); |
| case MeterPart: |
| return true; |
| case ProgressBarPart: |
| return paintProgressBar(o, paintInfo, r); |
| case SliderHorizontalPart: |
| case SliderVerticalPart: |
| return paintSliderTrack(o, paintInfo, r); |
| case SliderThumbHorizontalPart: |
| case SliderThumbVerticalPart: |
| return paintSliderThumb(o, paintInfo, r); |
| case MediaEnterFullscreenButtonPart: |
| case MediaExitFullscreenButtonPart: |
| return MediaControlsPainter::paintMediaFullscreenButton(o, paintInfo, r); |
| case MediaPlayButtonPart: |
| return MediaControlsPainter::paintMediaPlayButton(o, paintInfo, r); |
| case MediaOverlayPlayButtonPart: |
| return MediaControlsPainter::paintMediaOverlayPlayButton(o, paintInfo, r); |
| case MediaMuteButtonPart: |
| return MediaControlsPainter::paintMediaMuteButton(o, paintInfo, r); |
| case MediaToggleClosedCaptionsButtonPart: |
| return MediaControlsPainter::paintMediaToggleClosedCaptionsButton( |
| o, paintInfo, r); |
| case MediaSliderPart: |
| return MediaControlsPainter::paintMediaSlider(o, paintInfo, r); |
| case MediaSliderThumbPart: |
| return MediaControlsPainter::paintMediaSliderThumb(o, paintInfo, r); |
| case MediaVolumeSliderContainerPart: |
| return true; |
| case MediaVolumeSliderPart: |
| return MediaControlsPainter::paintMediaVolumeSlider(o, paintInfo, r); |
| case MediaVolumeSliderThumbPart: |
| return MediaControlsPainter::paintMediaVolumeSliderThumb(o, paintInfo, r); |
| case MediaFullscreenVolumeSliderPart: |
| case MediaFullscreenVolumeSliderThumbPart: |
| case MediaTimeRemainingPart: |
| case MediaCurrentTimePart: |
| case MediaControlsBackgroundPart: |
| return true; |
| case MediaCastOffButtonPart: |
| case MediaOverlayCastOffButtonPart: |
| return MediaControlsPainter::paintMediaCastButton(o, paintInfo, r); |
| case MediaTrackSelectionCheckmarkPart: |
| return MediaControlsPainter::paintMediaTrackSelectionCheckmark( |
| o, paintInfo, r); |
| case MediaClosedCaptionsIconPart: |
| return MediaControlsPainter::paintMediaClosedCaptionsIcon(o, paintInfo, |
| r); |
| case MediaSubtitlesIconPart: |
| return MediaControlsPainter::paintMediaSubtitlesIcon(o, paintInfo, r); |
| case MediaOverflowMenuButtonPart: |
| return MediaControlsPainter::paintMediaOverflowMenu(o, paintInfo, r); |
| case MediaDownloadIconPart: |
| return MediaControlsPainter::paintMediaDownloadIcon(o, paintInfo, r); |
| case MenulistButtonPart: |
| case TextFieldPart: |
| case TextAreaPart: |
| return true; |
| case SearchFieldPart: |
| return paintSearchField(o, paintInfo, r); |
| case SearchFieldCancelButtonPart: |
| return paintSearchFieldCancelButton(o, paintInfo, r); |
| default: |
| break; |
| } |
| |
| return true; // We don't support the appearance, so let the normal |
| // background/border paint. |
| } |
| |
| bool ThemePainter::paintBorderOnly(const LayoutObject& o, |
| const PaintInfo& paintInfo, |
| const IntRect& r) { |
| // Call the appropriate paint method based off the appearance value. |
| switch (o.styleRef().appearance()) { |
| case TextFieldPart: |
| UseCounter::count(o.document(), |
| UseCounter::CSSValueAppearanceTextFieldRendered); |
| if (isHTMLInputElement(o.node())) { |
| HTMLInputElement* input = toHTMLInputElement(o.node()); |
| if (input->type() == InputTypeNames::search) |
| UseCounter::count(o.document(), |
| UseCounter::CSSValueAppearanceTextFieldForSearch); |
| else if (input->isTextField()) |
| UseCounter::count( |
| o.document(), |
| UseCounter::CSSValueAppearanceTextFieldForTextField); |
| } |
| return paintTextField(o, paintInfo, r); |
| case TextAreaPart: |
| return paintTextArea(o, paintInfo, r); |
| case MenulistButtonPart: |
| case SearchFieldPart: |
| case ListboxPart: |
| return true; |
| case CheckboxPart: |
| case RadioPart: |
| case PushButtonPart: |
| case SquareButtonPart: |
| case ButtonPart: |
| case MenulistPart: |
| case MeterPart: |
| case ProgressBarPart: |
| case SliderHorizontalPart: |
| case SliderVerticalPart: |
| case SliderThumbHorizontalPart: |
| case SliderThumbVerticalPart: |
| case SearchFieldCancelButtonPart: |
| default: |
| break; |
| } |
| |
| return false; |
| } |
| |
| bool ThemePainter::paintDecorations(const LayoutObject& o, |
| const PaintInfo& paintInfo, |
| const IntRect& r) { |
| // Call the appropriate paint method based off the appearance value. |
| switch (o.styleRef().appearance()) { |
| case MenulistButtonPart: |
| return paintMenuListButton(o, paintInfo, r); |
| case TextFieldPart: |
| case TextAreaPart: |
| case CheckboxPart: |
| case RadioPart: |
| case PushButtonPart: |
| case SquareButtonPart: |
| case ButtonPart: |
| case MenulistPart: |
| case MeterPart: |
| case ProgressBarPart: |
| case SliderHorizontalPart: |
| case SliderVerticalPart: |
| case SliderThumbHorizontalPart: |
| case SliderThumbVerticalPart: |
| case SearchFieldPart: |
| case SearchFieldCancelButtonPart: |
| default: |
| break; |
| } |
| |
| return false; |
| } |
| |
| void ThemePainter::paintSliderTicks(const LayoutObject& o, |
| const PaintInfo& paintInfo, |
| const IntRect& rect) { |
| Node* node = o.node(); |
| if (!isHTMLInputElement(node)) |
| return; |
| |
| HTMLInputElement* input = toHTMLInputElement(node); |
| if (input->type() != InputTypeNames::range || |
| !input->userAgentShadowRoot()->hasChildren()) |
| return; |
| |
| HTMLDataListElement* dataList = input->dataList(); |
| if (!dataList) |
| return; |
| |
| double min = input->minimum(); |
| double max = input->maximum(); |
| ControlPart part = o.styleRef().appearance(); |
| // We don't support ticks on alternate sliders like MediaVolumeSliders. |
| if (part != SliderHorizontalPart && part != SliderVerticalPart) |
| return; |
| bool isHorizontal = part == SliderHorizontalPart; |
| |
| IntSize thumbSize; |
| LayoutObject* thumbLayoutObject = |
| input->userAgentShadowRoot() |
| ->getElementById(ShadowElementNames::sliderThumb()) |
| ->layoutObject(); |
| if (thumbLayoutObject) { |
| const ComputedStyle& thumbStyle = thumbLayoutObject->styleRef(); |
| int thumbWidth = thumbStyle.width().intValue(); |
| int thumbHeight = thumbStyle.height().intValue(); |
| thumbSize.setWidth(isHorizontal ? thumbWidth : thumbHeight); |
| thumbSize.setHeight(isHorizontal ? thumbHeight : thumbWidth); |
| } |
| |
| IntSize tickSize = LayoutTheme::theme().sliderTickSize(); |
| float zoomFactor = o.styleRef().effectiveZoom(); |
| FloatRect tickRect; |
| int tickRegionSideMargin = 0; |
| int tickRegionWidth = 0; |
| IntRect trackBounds; |
| LayoutObject* trackLayoutObject = |
| input->userAgentShadowRoot() |
| ->getElementById(ShadowElementNames::sliderTrack()) |
| ->layoutObject(); |
| // We can ignoring transforms because transform is handled by the graphics |
| // context. |
| if (trackLayoutObject) |
| trackBounds = |
| trackLayoutObject->absoluteBoundingBoxRectIgnoringTransforms(); |
| IntRect sliderBounds = o.absoluteBoundingBoxRectIgnoringTransforms(); |
| |
| // Make position relative to the transformed ancestor element. |
| trackBounds.setX(trackBounds.x() - sliderBounds.x() + rect.x()); |
| trackBounds.setY(trackBounds.y() - sliderBounds.y() + rect.y()); |
| |
| if (isHorizontal) { |
| tickRect.setWidth(floor(tickSize.width() * zoomFactor)); |
| tickRect.setHeight(floor(tickSize.height() * zoomFactor)); |
| tickRect.setY(floor(rect.y() + rect.height() / 2.0 + |
| LayoutTheme::theme().sliderTickOffsetFromTrackCenter() * |
| zoomFactor)); |
| tickRegionSideMargin = |
| trackBounds.x() + |
| (thumbSize.width() - tickSize.width() * zoomFactor) / 2.0; |
| tickRegionWidth = trackBounds.width() - thumbSize.width(); |
| } else { |
| tickRect.setWidth(floor(tickSize.height() * zoomFactor)); |
| tickRect.setHeight(floor(tickSize.width() * zoomFactor)); |
| tickRect.setX(floor(rect.x() + rect.width() / 2.0 + |
| LayoutTheme::theme().sliderTickOffsetFromTrackCenter() * |
| zoomFactor)); |
| tickRegionSideMargin = |
| trackBounds.y() + |
| (thumbSize.width() - tickSize.width() * zoomFactor) / 2.0; |
| tickRegionWidth = trackBounds.height() - thumbSize.width(); |
| } |
| HTMLDataListOptionsCollection* options = dataList->options(); |
| for (unsigned i = 0; HTMLOptionElement* optionElement = options->item(i); |
| i++) { |
| String value = optionElement->value(); |
| if (!input->isValidValue(value)) |
| continue; |
| double parsedValue = |
| parseToDoubleForNumberType(input->sanitizeValue(value)); |
| double tickFraction = (parsedValue - min) / (max - min); |
| double tickRatio = isHorizontal && o.styleRef().isLeftToRightDirection() |
| ? tickFraction |
| : 1.0 - tickFraction; |
| double tickPosition = |
| round(tickRegionSideMargin + tickRegionWidth * tickRatio); |
| if (isHorizontal) |
| tickRect.setX(tickPosition); |
| else |
| tickRect.setY(tickPosition); |
| paintInfo.context.fillRect(tickRect, o.resolveColor(CSSPropertyColor)); |
| } |
| } |
| |
| bool ThemePainter::paintUsingFallbackTheme(const LayoutObject& o, |
| const PaintInfo& i, |
| const IntRect& r) { |
| ControlPart part = o.styleRef().appearance(); |
| switch (part) { |
| case CheckboxPart: |
| return paintCheckboxUsingFallbackTheme(o, i, r); |
| case RadioPart: |
| return paintRadioUsingFallbackTheme(o, i, r); |
| default: |
| break; |
| } |
| return true; |
| } |
| |
| bool ThemePainter::paintCheckboxUsingFallbackTheme(const LayoutObject& o, |
| const PaintInfo& i, |
| const IntRect& r) { |
| WebFallbackThemeEngine::ExtraParams extraParams; |
| WebCanvas* canvas = i.context.canvas(); |
| extraParams.button.checked = LayoutTheme::isChecked(o); |
| extraParams.button.indeterminate = LayoutTheme::isIndeterminate(o); |
| |
| float zoomLevel = o.styleRef().effectiveZoom(); |
| GraphicsContextStateSaver stateSaver(i.context); |
| IntRect unzoomedRect = r; |
| if (zoomLevel != 1) { |
| unzoomedRect.setWidth(unzoomedRect.width() / zoomLevel); |
| unzoomedRect.setHeight(unzoomedRect.height() / zoomLevel); |
| i.context.translate(unzoomedRect.x(), unzoomedRect.y()); |
| i.context.scale(zoomLevel, zoomLevel); |
| i.context.translate(-unzoomedRect.x(), -unzoomedRect.y()); |
| } |
| |
| Platform::current()->fallbackThemeEngine()->paint( |
| canvas, WebFallbackThemeEngine::PartCheckbox, getWebFallbackThemeState(o), |
| WebRect(unzoomedRect), &extraParams); |
| return false; |
| } |
| |
| bool ThemePainter::paintRadioUsingFallbackTheme(const LayoutObject& o, |
| const PaintInfo& i, |
| const IntRect& r) { |
| WebFallbackThemeEngine::ExtraParams extraParams; |
| WebCanvas* canvas = i.context.canvas(); |
| extraParams.button.checked = LayoutTheme::isChecked(o); |
| extraParams.button.indeterminate = LayoutTheme::isIndeterminate(o); |
| |
| float zoomLevel = o.styleRef().effectiveZoom(); |
| GraphicsContextStateSaver stateSaver(i.context); |
| IntRect unzoomedRect = r; |
| if (zoomLevel != 1) { |
| unzoomedRect.setWidth(unzoomedRect.width() / zoomLevel); |
| unzoomedRect.setHeight(unzoomedRect.height() / zoomLevel); |
| i.context.translate(unzoomedRect.x(), unzoomedRect.y()); |
| i.context.scale(zoomLevel, zoomLevel); |
| i.context.translate(-unzoomedRect.x(), -unzoomedRect.y()); |
| } |
| |
| Platform::current()->fallbackThemeEngine()->paint( |
| canvas, WebFallbackThemeEngine::PartRadio, getWebFallbackThemeState(o), |
| WebRect(unzoomedRect), &extraParams); |
| return false; |
| } |
| |
| } // namespace blink |
