--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/RenderTheme.h Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,332 @@
+/*
+ * This file is part of the theme implementation for form controls in WebCore.
+ *
+ * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 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.
+ *
+ */
+
+#ifndef RenderTheme_h
+#define RenderTheme_h
+
+#if USE(NEW_THEME)
+#include "Theme.h"
+#else
+#include "ThemeTypes.h"
+#endif
+#include "RenderObject.h"
+#include "RenderTheme.h"
+#include "ScrollTypes.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+
+namespace WebCore {
+
+class Element;
+class PopupMenu;
+class RenderMenuList;
+#if ENABLE(METER_TAG)
+class RenderMeter;
+#endif
+#if ENABLE(PROGRESS_TAG)
+class RenderProgress;
+#endif
+class CSSStyleSheet;
+
+class RenderTheme : public RefCounted<RenderTheme> {
+protected:
+ RenderTheme();
+
+public:
+ virtual ~RenderTheme() { }
+
+ // This function is to be implemented in your platform-specific theme implementation to hand back the
+ // appropriate platform theme. When the theme is needed in non-page dependent code, a default theme is
+ // used as fallback, which is returned for a nulled page, so the platform code needs to account for this.
+ static PassRefPtr<RenderTheme> themeForPage(Page* page);
+
+ // When the theme is needed in non-page dependent code, the defaultTheme() is used as fallback.
+ static inline PassRefPtr<RenderTheme> defaultTheme()
+ {
+ return themeForPage(0);
+ };
+
+ // This method is called whenever style has been computed for an element and the appearance
+ // property has been set to a value other than "none". The theme should map in all of the appropriate
+ // metrics and defaults given the contents of the style. This includes sophisticated operations like
+ // selection of control size based off the font, the disabling of appearance when certain other properties like
+ // "border" are set, or if the appearance is not supported by the theme.
+ void adjustStyle(CSSStyleSelector*, RenderStyle*, Element*, bool UAHasAppearance,
+ const BorderData&, const FillLayer&, const Color& backgroundColor);
+
+ // This method is called to paint the widget as a background of the RenderObject. A widget's foreground, e.g., the
+ // text of a button, is always rendered by the engine itself. The boolean return value indicates
+ // whether the CSS border/background should also be painted.
+ bool paint(RenderObject*, const PaintInfo&, const IntRect&);
+ bool paintBorderOnly(RenderObject*, const PaintInfo&, const IntRect&);
+ bool paintDecorations(RenderObject*, const PaintInfo&, const IntRect&);
+
+ // The remaining methods should be implemented by the platform-specific portion of the theme, e.g.,
+ // RenderThemeMac.cpp for Mac OS X.
+
+ // These methods return the theme's extra style sheets rules, to let each platform
+ // adjust the default CSS rules in html.css, quirks.css, or mediaControls.css
+ virtual String extraDefaultStyleSheet() { return String(); }
+ virtual String extraQuirksStyleSheet() { return String(); }
+#if ENABLE(VIDEO)
+ virtual String extraMediaControlsStyleSheet() { return String(); };
+#endif
+
+ // A method to obtain the baseline position for a "leaf" control. This will only be used if a baseline
+ // position cannot be determined by examining child content. Checkboxes and radio buttons are examples of
+ // controls that need to do this.
+ virtual int baselinePosition(const RenderObject*) const;
+
+ // A method for asking if a control is a container or not. Leaf controls have to have some special behavior (like
+ // the baseline position API above).
+ bool isControlContainer(ControlPart) const;
+
+ // A method asking if the control changes its tint when the window has focus or not.
+ virtual bool controlSupportsTints(const RenderObject*) const { return false; }
+
+ // Whether or not the control has been styled enough by the author to disable the native appearance.
+ virtual bool isControlStyled(const RenderStyle*, const BorderData&, const FillLayer&, const Color& backgroundColor) const;
+
+ // A general method asking if any control tinting is supported at all.
+ virtual bool supportsControlTints() const { return false; }
+
+ // Some controls may spill out of their containers (e.g., the check on an OS X checkbox). When these controls repaint,
+ // the theme needs to communicate this inflated rect to the engine so that it can invalidate the whole control.
+ virtual void adjustRepaintRect(const RenderObject*, IntRect&);
+
+ // This method is called whenever a relevant state changes on a particular themed object, e.g., the mouse becomes pressed
+ // or a control becomes disabled.
+ virtual bool stateChanged(RenderObject*, ControlState) const;
+
+ // This method is called whenever the theme changes on the system in order to flush cached resources from the
+ // old theme.
+ virtual void themeChanged() { }
+
+ // A method asking if the theme is able to draw the focus ring.
+ virtual bool supportsFocusRing(const RenderStyle*) const;
+
+ // A method asking if the theme's controls actually care about redrawing when hovered.
+ virtual bool supportsHover(const RenderStyle*) const { return false; }
+
+ // Text selection colors.
+ Color activeSelectionBackgroundColor() const;
+ Color inactiveSelectionBackgroundColor() const;
+ Color activeSelectionForegroundColor() const;
+ Color inactiveSelectionForegroundColor() const;
+
+ // List box selection colors
+ Color activeListBoxSelectionBackgroundColor() const;
+ Color activeListBoxSelectionForegroundColor() const;
+ Color inactiveListBoxSelectionBackgroundColor() const;
+ Color inactiveListBoxSelectionForegroundColor() const;
+
+ // Highlighting colors for TextMatches.
+ virtual Color platformActiveTextSearchHighlightColor() const;
+ virtual Color platformInactiveTextSearchHighlightColor() const;
+
+ static Color focusRingColor();
+ virtual Color platformFocusRingColor() const { return Color(0, 0, 0); }
+ static void setCustomFocusRingColor(const Color&);
+
+ virtual void platformColorsDidChange();
+
+ virtual double caretBlinkInterval() const { return 0.5; }
+
+ // System fonts and colors for CSS.
+ virtual void systemFont(int cssValueId, FontDescription&) const = 0;
+ virtual Color systemColor(int cssValueId) const;
+
+ virtual int minimumMenuListSize(RenderStyle*) const { return 0; }
+
+ virtual void adjustSliderThumbSize(RenderObject*) const;
+
+ virtual int popupInternalPaddingLeft(RenderStyle*) const { return 0; }
+ virtual int popupInternalPaddingRight(RenderStyle*) const { return 0; }
+ virtual int popupInternalPaddingTop(RenderStyle*) const { return 0; }
+ virtual int popupInternalPaddingBottom(RenderStyle*) const { return 0; }
+ virtual bool popupOptionSupportsTextIndent() const { return false; }
+
+ virtual ScrollbarControlSize scrollbarControlSizeForPart(ControlPart) { return RegularScrollbar; }
+
+ // Method for painting the caps lock indicator
+ virtual bool paintCapsLockIndicator(RenderObject*, const PaintInfo&, const IntRect&) { return 0; };
+
+#if ENABLE(PROGRESS_TAG)
+ // Returns the repeat interval of the animation for the progress bar.
+ virtual double animationRepeatIntervalForProgressBar(RenderProgress*) const;
+ // Returns the duration of the animation for the progress bar.
+ virtual double animationDurationForProgressBar(RenderProgress*) const;
+#endif
+
+#if ENABLE(VIDEO)
+ // Media controls
+ virtual bool hitTestMediaControlPart(RenderObject*, const IntPoint& absPoint);
+ virtual bool shouldRenderMediaControlPart(ControlPart, Element*);
+ virtual double mediaControlsFadeInDuration() { return 0.1; }
+ virtual double mediaControlsFadeOutDuration() { return 0.3; }
+ virtual String formatMediaControlsTime(float time) const;
+ virtual String formatMediaControlsCurrentTime(float currentTime, float duration) const;
+ virtual String formatMediaControlsRemainingTime(float currentTime, float duration) const;
+
+ // Returns the media volume slider container's offset from the mute button.
+ virtual IntPoint volumeSliderOffsetFromMuteButton(Node*, const IntSize&) const;
+#endif
+
+#if ENABLE(METER_TAG)
+ virtual IntSize meterSizeForBounds(const RenderMeter*, const IntRect&) const;
+ virtual bool supportsMeter(ControlPart, bool isHorizontal) const;
+#endif
+
+protected:
+ // The platform selection color.
+ virtual Color platformActiveSelectionBackgroundColor() const;
+ virtual Color platformInactiveSelectionBackgroundColor() const;
+ virtual Color platformActiveSelectionForegroundColor() const;
+ virtual Color platformInactiveSelectionForegroundColor() const;
+
+ virtual Color platformActiveListBoxSelectionBackgroundColor() const;
+ virtual Color platformInactiveListBoxSelectionBackgroundColor() const;
+ virtual Color platformActiveListBoxSelectionForegroundColor() const;
+ virtual Color platformInactiveListBoxSelectionForegroundColor() const;
+
+ virtual bool supportsSelectionForegroundColors() const { return true; }
+ virtual bool supportsListBoxSelectionForegroundColors() const { return true; }
+
+#if !USE(NEW_THEME)
+ // Methods for each appearance value.
+ virtual void adjustCheckboxStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintCheckbox(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual void setCheckboxSize(RenderStyle*) const { }
+
+ virtual void adjustRadioStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintRadio(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual void setRadioSize(RenderStyle*) const { }
+
+ virtual void adjustButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual void setButtonSize(RenderStyle*) const { }
+
+ virtual void adjustInnerSpinButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintInnerSpinButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual void adjustOuterSpinButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintOuterSpinButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+#endif
+
+ virtual void adjustTextFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintTextField(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustTextAreaStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintTextArea(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustMenuListStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintMenuList(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustMenuListButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintMenuListButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+#if ENABLE(METER_TAG)
+ virtual void adjustMeterStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintMeter(RenderObject*, const PaintInfo&, const IntRect&);
+#endif
+
+#if ENABLE(PROGRESS_TAG)
+ virtual void adjustProgressBarStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintProgressBar(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+#endif
+
+#if ENABLE(INPUT_SPEECH)
+ virtual void adjustInputFieldSpeechButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintInputFieldSpeechButton(RenderObject*, const PaintInfo&, const IntRect&);
+#endif
+
+ virtual void adjustSliderTrackStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintSliderTrack(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustSliderThumbStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintSliderThumb(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustSearchFieldStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintSearchField(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustSearchFieldCancelButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintSearchFieldCancelButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustSearchFieldDecorationStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintSearchFieldDecoration(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustSearchFieldResultsDecorationStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintSearchFieldResultsDecoration(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual void adjustSearchFieldResultsButtonStyle(CSSStyleSelector*, RenderStyle*, Element*) const;
+ virtual bool paintSearchFieldResultsButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+ virtual bool paintMediaFullscreenButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaPlayButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaMuteButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaSeekBackButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaSeekForwardButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaSliderTrack(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaSliderThumb(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaVolumeSliderContainer(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaVolumeSliderTrack(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaVolumeSliderThumb(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaRewindButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaReturnToRealtimeButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaToggleClosedCaptionsButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaControlsBackground(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaCurrentTime(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+ virtual bool paintMediaTimeRemaining(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
+
+public:
+ // Methods for state querying
+ ControlStates controlStatesForRenderer(const RenderObject* o) const;
+ bool isActive(const RenderObject*) const;
+ bool isChecked(const RenderObject*) const;
+ bool isIndeterminate(const RenderObject*) const;
+ bool isEnabled(const RenderObject*) const;
+ bool isFocused(const RenderObject*) const;
+ bool isPressed(const RenderObject*) const;
+ bool isSpinUpButtonPartPressed(const RenderObject*) const;
+ bool isHovered(const RenderObject*) const;
+ bool isSpinUpButtonPartHovered(const RenderObject*) const;
+ bool isReadOnlyControl(const RenderObject*) const;
+ bool isDefault(const RenderObject*) const;
+
+private:
+ mutable Color m_activeSelectionBackgroundColor;
+ mutable Color m_inactiveSelectionBackgroundColor;
+ mutable Color m_activeSelectionForegroundColor;
+ mutable Color m_inactiveSelectionForegroundColor;
+
+ mutable Color m_activeListBoxSelectionBackgroundColor;
+ mutable Color m_inactiveListBoxSelectionBackgroundColor;
+ mutable Color m_activeListBoxSelectionForegroundColor;
+ mutable Color m_inactiveListBoxSelectionForegroundColor;
+
+#if USE(NEW_THEME)
+ Theme* m_theme; // The platform-specific theme.
+#endif
+};
+
+} // namespace WebCore
+
+#endif // RenderTheme_h