commit f6325cc47656445f729c4426246154733e4bf6df Author: Mike Perry mikeperry-git@fscked.org Date: Tue Apr 2 16:03:44 2013 -0700

Bug 7920: Honor the Windows theme for inverse text colors --- ...not-expose-system-colors-to-CSS-or-canvas.patch | 195 ++++++++++++++++++-- 1 files changed, 180 insertions(+), 15 deletions(-)

diff --git a/src/current-patches/firefox/0023-Do-not-expose-system-colors-to-CSS-or-canvas.patch b/src/current-patches/firefox/0023-Do-not-expose-system-colors-to-CSS-or-canvas.patch index 1db7290..2bd9ffc 100644 --- a/src/current-patches/firefox/0023-Do-not-expose-system-colors-to-CSS-or-canvas.patch +++ b/src/current-patches/firefox/0023-Do-not-expose-system-colors-to-CSS-or-canvas.patch @@ -1,17 +1,24 @@ -From 6cf784929d122dd2b83536bdd742e9a718027376 Mon Sep 17 00:00:00 2001 +From 6f70c68258eb81dc898622f1f2629d71441fb1d3 Mon Sep 17 00:00:00 2001 From: Kathleen Brade brade@pearlcrescent.com Date: Wed, 28 Nov 2012 15:08:40 -0500 -Subject: [PATCH 23/27] Do not expose system colors to CSS or canvas. +Subject: [PATCH 23/28] Do not expose system colors to CSS or canvas.

+This patch also contains a hack to use properly contrasting colors if the +desktop theme specifies white on black for text colors (see +https://trac.torproject.org/projects/tor/ticket/7920). These color choices are +also not exposed to content. --- - content/canvas/src/nsCanvasRenderingContext2D.cpp | 28 +++- + content/canvas/src/nsCanvasRenderingContext2D.cpp | 28 ++- .../canvas/src/nsCanvasRenderingContext2DAzure.cpp | 34 +++- .../canvas/src/nsCanvasRenderingContext2DAzure.h | 5 +- + layout/base/nsLayoutUtils.cpp | 50 +++++ + layout/base/nsLayoutUtils.h | 4 + + layout/generic/nsFrame.cpp | 6 +- layout/style/nsRuleNode.cpp | 5 +- - widget/LookAndFeel.h | 9 + - widget/xpwidgets/nsXPLookAndFeel.cpp | 173 +++++++++++++++++++- + widget/LookAndFeel.h | 12 ++ + widget/xpwidgets/nsXPLookAndFeel.cpp | 214 +++++++++++++++++++- widget/xpwidgets/nsXPLookAndFeel.h | 5 +- - 7 files changed, 239 insertions(+), 20 deletions(-) + 10 files changed, 342 insertions(+), 21 deletions(-)

diff --git a/content/canvas/src/nsCanvasRenderingContext2D.cpp b/content/canvas/src/nsCanvasRenderingContext2D.cpp index 0dec654..7132e4f 100644 @@ -190,6 +197,113 @@ index 05ccf61..629d78a 100644 Type mType; virtual ~nsCanvasGradientAzure() {} }; +diff --git a/layout/base/nsLayoutUtils.cpp b/layout/base/nsLayoutUtils.cpp +index 87b0d34..65515d9 100644 +--- a/layout/base/nsLayoutUtils.cpp ++++ b/layout/base/nsLayoutUtils.cpp +@@ -76,6 +76,7 @@ + #include "nsSVGForeignObjectFrame.h" + #include "nsSVGOuterSVGFrame.h" + #include "nsStyleStructInlines.h" ++#include "mozilla/LookAndFeel.h" + + #include "mozilla/Preferences.h" + +@@ -3134,13 +3135,62 @@ ShouldDarkenColors(nsPresContext* aPresContext) + nscolor + nsLayoutUtils::GetColor(nsIFrame* aFrame, nsCSSProperty aProperty) + { ++ if (aProperty == eCSSProperty_color) ++ { ++ nscolor nativeColor = NS_RGB(0, 0, 0); ++ if (GetNativeTextColor(aFrame, nativeColor)) ++ return nativeColor; ++ } ++ + nscolor color = aFrame->GetVisitedDependentColor(aProperty); + if (ShouldDarkenColors(aFrame->PresContext())) { + color = DarkenColor(color); + } ++ + return color; + } + ++bool ++nsLayoutUtils::GetNativeTextColor(nsIFrame* aFrame, nscolor& aColor) ++{ ++ nsPresContext *presContext = aFrame->PresContext(); ++ if (!presContext->IsChrome()) { ++ // If native appearance was used to draw the background of the containing ++ // frame, return a contrasting native foreground color instead of the ++ // color from the element's style. This avoids a problem where black ++ // text was displayed on a black background when a Windows theme such as ++ // "High Contrast Black" was used. The background is drawn inside ++ // nsNativeThemeWin::ClassicDrawWidgetBackground(). ++ // ++ // Because both the background color and this foreground color are used ++ // directly without exposing the colors via CSS computed styles, the ++ // native colors are not leaked to content. ++ nsIFrame* bgFrame = ++ nsCSSRendering::FindNonTransparentBackgroundFrame(aFrame); ++ if (bgFrame) { ++ const nsStyleDisplay* displayData = bgFrame->GetStyleDisplay(); ++ uint8_t widgetType = displayData->mAppearance; ++ nsITheme *theme = presContext->GetTheme(); ++ if (widgetType && theme->ThemeSupportsWidget(presContext, bgFrame, ++ widgetType)) { ++ bool isDisabled = false; ++ nsIContent* frameContent = bgFrame->GetContent(); ++ if (frameContent && frameContent->IsElement()) { ++ nsEventStates es = frameContent->AsElement()->State(); ++ isDisabled = es.HasState(NS_EVENT_STATE_DISABLED); ++ } ++ ++ if (NS_SUCCEEDED(LookAndFeel::GetColorForNativeAppearance(widgetType, ++ isDisabled, &aColor))) { ++ return true; ++ } ++ } ++ } ++ } ++ ++ return false; ++} ++ + gfxFloat + nsLayoutUtils::GetSnappedBaselineY(nsIFrame* aFrame, gfxContext* aContext, + nscoord aY, nscoord aAscent) +diff --git a/layout/base/nsLayoutUtils.h b/layout/base/nsLayoutUtils.h +index 4fb1f93..6552f04 100644 +--- a/layout/base/nsLayoutUtils.h ++++ b/layout/base/nsLayoutUtils.h +@@ -989,6 +989,10 @@ public: + // Get a suitable foreground color for painting aProperty for aFrame. + static nscolor GetColor(nsIFrame* aFrame, nsCSSProperty aProperty); + ++ // Get the native text color if appropriate. If false is returned, callers ++ // should fallback to the CSS color. ++ static bool GetNativeTextColor(nsIFrame* aFrame, nscolor& aColor); ++ + // Get a baseline y position in app units that is snapped to device pixels. + static gfxFloat GetSnappedBaselineY(nsIFrame* aFrame, gfxContext* aContext, + nscoord aY, nscoord aAscent); +diff --git a/layout/generic/nsFrame.cpp b/layout/generic/nsFrame.cpp +index 75a2bb9..d684a62 100644 +--- a/layout/generic/nsFrame.cpp ++++ b/layout/generic/nsFrame.cpp +@@ -1446,7 +1446,11 @@ nsIFrame::DisplayCaret(nsDisplayListBuilder* aBuilder, + nscolor + nsIFrame::GetCaretColorAt(int32_t aOffset) + { +- // Use text color. ++ nscolor color = NS_RGB(0, 0, 0); ++ if (nsLayoutUtils::GetNativeTextColor(this, color)) ++ return color; ++ ++ // Use CSS text color. + return GetStyleColor()->mColor; + } + diff --git a/layout/style/nsRuleNode.cpp b/layout/style/nsRuleNode.cpp index 86eff1f..732b1fe 100644 --- a/layout/style/nsRuleNode.cpp @@ -207,10 +321,10 @@ index 86eff1f..732b1fe 100644 } } diff --git a/widget/LookAndFeel.h b/widget/LookAndFeel.h -index e46bb13..59f00f5 100644 +index e46bb13..f947084 100644 --- a/widget/LookAndFeel.h +++ b/widget/LookAndFeel.h -@@ -446,6 +446,15 @@ public: +@@ -446,6 +446,18 @@ public: static nsresult GetColor(ColorID aID, nscolor* aResult);

/** @@ -222,15 +336,26 @@ index e46bb13..59f00f5 100644 + static nsresult GetColor(ColorID aID, bool aUseStandinsForNativeColors, + nscolor* aResult); + ++ static nsresult GetColorForNativeAppearance(uint8_t aWidgetType, ++ bool aIsDisabled, nscolor* aResult); ++ + /** * GetInt() and GetFloat() return a int or float value for aID. The result * might be distance, time, some flags or a int value which has particular * meaning. See each document at definition of each ID for the detail. diff --git a/widget/xpwidgets/nsXPLookAndFeel.cpp b/widget/xpwidgets/nsXPLookAndFeel.cpp -index 50c2c86..20ccfef 100644 +index 50c2c86..704963a 100644 --- a/widget/xpwidgets/nsXPLookAndFeel.cpp +++ b/widget/xpwidgets/nsXPLookAndFeel.cpp -@@ -476,6 +476,155 @@ nsXPLookAndFeel::IsSpecialColor(ColorID aID, nscolor &aColor) +@@ -11,6 +11,7 @@ + #include "nsLookAndFeel.h" + #include "nsCRT.h" + #include "nsFont.h" ++#include "nsThemeConstants.h" + #include "mozilla/Preferences.h" + + #include "gfxPlatform.h" +@@ -476,6 +477,155 @@ nsXPLookAndFeel::IsSpecialColor(ColorID aID, nscolor &aColor) return false; }

@@ -386,7 +511,7 @@ index 50c2c86..20ccfef 100644 // // All these routines will return NS_OK if they have a value, // in which case the nsLookAndFeel should use that value; -@@ -483,7 +632,8 @@ nsXPLookAndFeel::IsSpecialColor(ColorID aID, nscolor &aColor) +@@ -483,7 +633,8 @@ nsXPLookAndFeel::IsSpecialColor(ColorID aID, nscolor &aColor) // platform-specific nsLookAndFeel should use its own values instead. // nsresult @@ -396,7 +521,7 @@ index 50c2c86..20ccfef 100644 { if (!sInitialized) Init(); -@@ -569,7 +719,10 @@ nsXPLookAndFeel::GetColorImpl(ColorID aID, nscolor &aResult) +@@ -569,7 +720,10 @@ nsXPLookAndFeel::GetColorImpl(ColorID aID, nscolor &aResult) } #endif // DEBUG_SYSTEM_COLOR_USE

@@ -408,7 +533,7 @@ index 50c2c86..20ccfef 100644 aResult = sCachedColors[aID]; return NS_OK; } -@@ -603,6 +756,12 @@ nsXPLookAndFeel::GetColorImpl(ColorID aID, nscolor &aResult) +@@ -603,6 +757,12 @@ nsXPLookAndFeel::GetColorImpl(ColorID aID, nscolor &aResult) return NS_OK; }

@@ -421,7 +546,7 @@ index 50c2c86..20ccfef 100644 if (sUseNativeColors && NS_SUCCEEDED(NativeGetColor(aID, aResult))) { if ((gfxPlatform::GetCMSMode() == eCMSMode_All) && !IsSpecialColor(aID, aResult)) { -@@ -693,7 +852,15 @@ namespace mozilla { +@@ -693,7 +853,55 @@ namespace mozilla { nsresult LookAndFeel::GetColor(ColorID aID, nscolor* aResult) { @@ -435,6 +560,46 @@ index 50c2c86..20ccfef 100644 +{ + return nsLookAndFeel::GetInstance()->GetColorImpl(aID, + aUseStandinsForNativeColors, *aResult); ++} ++ ++// static ++nsresult ++LookAndFeel::GetColorForNativeAppearance(uint8_t aWidgetType, bool aIsDisabled, ++ nscolor* aResult) ++{ ++ NS_ENSURE_ARG_POINTER(aResult); ++ ++ ColorID colorID = eColorID_LAST_COLOR; ++ switch (aWidgetType) { ++ case NS_THEME_TEXTFIELD: ++ case NS_THEME_TEXTFIELD_MULTILINE: ++ case NS_THEME_LISTBOX: ++ case NS_THEME_DROPDOWN: ++ case NS_THEME_DROPDOWN_TEXTFIELD: ++ case NS_THEME_TREEVIEW: ++ colorID = (aIsDisabled) ? eColorID_graytext : eColorID__moz_fieldtext; ++ break; ++ ++ case NS_THEME_TOOLTIP: ++ colorID = eColorID_infotext; ++ break; ++ ++ case NS_THEME_BUTTON: ++ case NS_THEME_GROUPBOX: ++ case NS_THEME_PROGRESSBAR: ++ case NS_THEME_PROGRESSBAR_VERTICAL: ++ case NS_THEME_TAB_PANEL: ++ case NS_THEME_STATUSBAR: ++ case NS_THEME_STATUSBAR_RESIZER_PANEL: ++ colorID = (aIsDisabled) ? eColorID_graytext : eColorID_buttontext; ++ break; ++ } ++ ++ if (LookAndFeel::eColorID_LAST_COLOR == colorID) ++ return NS_ERROR_FAILURE; ++ ++ *aResult = NS_RGB(0, 0, 0); ++ return nsLookAndFeel::GetInstance()->NativeGetColor(colorID, *aResult); }

// static @@ -462,5 +627,5 @@ index 69627d2..2729803 100644 static int OnPrefChanged(const char* aPref, void* aClosure);

-- -1.7.5.4 +1.7.9.5