Bug 638176 - Make <progress> friendly with -moz-appearance:none and author styling. r=bz

2011-05-06 12:00:30 +02:00 · 2011-05-06 12:00:30 +02:00 · 091f771777
--- a/layout/forms/nsProgressFrame.cpp
+++ b/layout/forms/nsProgressFrame.cpp
@ -137,6 +137,7 @@ nsProgressFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
 }

 NS_QUERYFRAME_HEAD(nsProgressFrame)
+  NS_QUERYFRAME_ENTRY(nsProgressFrame)
  NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
 NS_QUERYFRAME_TAIL_INHERITING(nsHTMLContainerFrame)

@ -213,12 +214,11 @@ nsProgressFrame::ReflowBarFrame(nsIFrame*                aBarFrame,
  // The bar width is fixed in these cases:
  // - the progress position is determined: the bar width is fixed according
  //   to it's value.
-  // - the progress position is indeterminate and the bar appearance is the
-  //   native one ('progresschunk'): the bar width is forced to 100%.
+  // - the progress position is indeterminate and the bar appearance should be
+  //   shown as native: the bar width is forced to 100%.
  // Otherwise (when the progress is indeterminate and the bar appearance isn't
  // native), the bar width isn't fixed and can be set by the author.
-  if (position != -1 ||
-      aBarFrame->GetStyleDisplay()->mAppearance == NS_THEME_PROGRESSBAR_CHUNK) {
+  if (position != -1 || ShouldUseNativeStyle()) {
    width -= reflowState.mComputedMargin.LeftRight() +
             reflowState.mComputedBorderPadding.LeftRight();
    width = NS_MAX(width, 0);
@ -272,3 +272,18 @@ nsProgressFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
  return autoSize;
 }

+bool
+nsProgressFrame::ShouldUseNativeStyle() const
+{
+  // Use the native style if these conditions are satisfied:
+  // - both frames use the native appearance;
+  // - neither frame has author specified rules setting the border or the
+  //   background.
+  return GetStyleDisplay()->mAppearance == NS_THEME_PROGRESSBAR &&
+         mBarDiv->GetPrimaryFrame()->GetStyleDisplay()->mAppearance == NS_THEME_PROGRESSBAR_CHUNK &&
+         !PresContext()->HasAuthorSpecifiedRules(const_cast<nsProgressFrame*>(this),
+                                                 NS_AUTHOR_SPECIFIED_BORDER | NS_AUTHOR_SPECIFIED_BACKGROUND) &&
+         !PresContext()->HasAuthorSpecifiedRules(mBarDiv->GetPrimaryFrame(),
+                                                 NS_AUTHOR_SPECIFIED_BORDER | NS_AUTHOR_SPECIFIED_BACKGROUND);
+}
+
--- a/layout/forms/nsProgressFrame.h
+++ b/layout/forms/nsProgressFrame.h
@ -92,6 +92,11 @@ public:
      ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
  }

+  /**
+   * Returns whether the frame and its child should use the native style.
+   */
+  bool ShouldUseNativeStyle() const;
+
 protected:
  // Helper function which reflow the anonymous div frame.
  void ReflowBarFrame(nsIFrame*                aBarFrame,
--- a/widget/reftests/progressbar-fallback-default-style-ref.html
+++ b/widget/reftests/progressbar-fallback-default-style-ref.html
@ -0,0 +1,64 @@
+<!DOCTYPE html>
+<html>
+  <style>
+    div.progress-element {
+      /**
+       * The purpose of this test is to not show the native style.
+       * -moz-appearance: progressbar;
+       */
+      display: inline-block;
+      height: 1em;
+      width: 10em;
+      vertical-align: -0.2em;
+
+      /* Default style in case of there is -moz-appearance: none; */
+      border: 2px solid;
+      -moz-border-top-colors: ThreeDShadow -moz-Dialog;
+      -moz-border-right-colors: ThreeDHighlight -moz-Dialog;
+      -moz-border-bottom-colors: ThreeDHighlight -moz-Dialog;
+      -moz-border-left-colors: ThreeDShadow -moz-Dialog;
+      background-color: -moz-Dialog;
+    }
+
+    div.progress-bar {
+      /**
+       * The purpose of this test is to not show the native style.
+       * -moz-appearance: progresschunk;
+       */
+
+      height: 100%;
+      width: 100%;
+
+      /* Default style in case of there is -moz-appearance: none; */
+      background-color: ThreeDShadow;
+    }
+
+    div.progress-element { padding: 5px; }
+    body > div:nth-child(1)  { -moz-appearance: none; }
+    body > div:nth-child(2) > .progress-bar { -moz-appearance: none; }
+    body > div:nth-child(3)  { background-color: red; }
+    body > div:nth-child(4) > .progress-bar { background-color: red; }
+    body > div:nth-child(5)  { border: 2px solid red; }
+    body > div:nth-child(6) > .progress-bar { border: 5px solid red; }
+  </style>
+  <body>
+    <div class="progress-element">
+      <div class="progress-bar"></div>
+    </div>
+    <div class="progress-element">
+      <div class="progress-bar"></div>
+    </div>
+    <div class="progress-element">
+      <div class="progress-bar"></div>
+    </div>
+    <div class="progress-element">
+      <div class="progress-bar"></div>
+    </div>
+    <div class="progress-element">
+      <div class="progress-bar"></div>
+    </div>
+    <div class="progress-element">
+      <div class="progress-bar"></div>
+    </div>
+  </body>
+</html>
--- a/widget/reftests/progressbar-fallback-default-style.html
+++ b/widget/reftests/progressbar-fallback-default-style.html
@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+  <style>
+    progress { padding: 5px }
+    body > progress:nth-child(1) { -moz-appearance: none; }
+    body > progress:nth-child(2)::-moz-progress-bar { -moz-appearance: none; }
+    body > progress:nth-child(3) { background-color: red; }
+    body > progress:nth-child(4)::-moz-progress-bar { background-color: red; }
+    body > progress:nth-child(5) { border: 2px solid red; }
+    body > progress:nth-child(6)::-moz-progress-bar { border: 5px solid red; }
+  </style>
+  <body>
+    <progress></progress>
+    <progress></progress>
+    <progress></progress>
+    <progress></progress>
+    <progress></progress>
+    <progress></progress>
+  </body>
+</html>
--- a/widget/reftests/reftest.list
+++ b/widget/reftests/reftest.list
@ -1 +1,2 @@
 skip-if(!cocoaWidget) != 507947.html about:blank
+== progressbar-fallback-default-style.html progressbar-fallback-default-style-ref.html
--- a/widget/src/xpwidgets/Makefile.in
+++ b/widget/src/xpwidgets/Makefile.in
@ -100,6 +100,9 @@ endif
 LOCAL_INCLUDES	+= \
 		-I$(srcdir)/../$(MOZ_WIDGET_TOOLKIT) \
 		-I$(srcdir)/../shared \
+		-I$(topsrcdir)/layout/forms \
+		-I$(topsrcdir)/layout/generic \
+		-I$(topsrcdir)/layout/xul/base/src \
 		-I$(srcdir) \
 		$(NULL)

--- a/widget/src/xpwidgets/nsNativeTheme.cpp
+++ b/widget/src/xpwidgets/nsNativeTheme.cpp
@ -51,6 +51,7 @@
 #include "nsThemeConstants.h"
 #include "nsIComponentManager.h"
 #include "nsPIDOMWindow.h"
+#include "nsProgressFrame.h"

 nsNativeTheme::nsNativeTheme()
 : mAnimatedContentTimeout(PR_UINT32_MAX)
@ -251,6 +252,19 @@ nsNativeTheme::IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
    }
  }

+  /**
+   * Progress bar appearance should be the same for the bar and the container
+   * frame. nsProgressFrame owns the logic and will tell us what we should do.
+   */
+  if (aWidgetType == NS_THEME_PROGRESSBAR_CHUNK ||
+      aWidgetType == NS_THEME_PROGRESSBAR) {
+    nsProgressFrame* progressFrame = do_QueryFrame(aWidgetType == NS_THEME_PROGRESSBAR_CHUNK
+                                       ? aFrame->GetParent() : aFrame);
+    if (progressFrame) {
+      return !progressFrame->ShouldUseNativeStyle();
+    }
+  }
+
  return (aWidgetType == NS_THEME_BUTTON ||
          aWidgetType == NS_THEME_TEXTFIELD ||
          aWidgetType == NS_THEME_TEXTFIELD_MULTILINE ||