layout/forms/nsProgressFrame.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsProgressFrame_h___
   7 #define nsProgressFrame_h___
   8
   9 #include "mozilla/Attributes.h"
  10 #include "nsContainerFrame.h"
  11 #include "nsIAnonymousContentCreator.h"
  12 #include "nsCOMPtr.h"
  13
  14 class nsBaseContentList;
  15
  16 class nsProgressFrame : public nsContainerFrame,
  17                         public nsIAnonymousContentCreator
  18 {
  19   typedef mozilla::dom::Element Element;
  20
  21 public:
  22   NS_DECL_QUERYFRAME_TARGET(nsProgressFrame)
  23   NS_DECL_QUERYFRAME
  24   NS_DECL_FRAMEARENA_HELPERS
  25
  26   nsProgressFrame(nsStyleContext* aContext);
  27   virtual ~nsProgressFrame();
  28
  29   virtual void DestroyFrom(nsIFrame* aDestructRoot) MOZ_OVERRIDE;
  30
  31   virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
  32                                 const nsRect&           aDirtyRect,
  33                                 const nsDisplayListSet& aLists) MOZ_OVERRIDE;
  34
  35   NS_IMETHOD Reflow(nsPresContext*           aCX,
  36                     nsHTMLReflowMetrics&     aDesiredSize,
  37                     const nsHTMLReflowState& aReflowState,
  38                     nsReflowStatus&          aStatus) MOZ_OVERRIDE;
  39
  40 #ifdef DEBUG_FRAME_DUMP
  41   NS_IMETHOD GetFrameName(nsAString& aResult) const MOZ_OVERRIDE {
  42     return MakeFrameName(NS_LITERAL_STRING("Progress"), aResult);
  43   }
  44 #endif
  45
  46   virtual bool IsLeaf() const MOZ_OVERRIDE { return true; }
  47
  48   // nsIAnonymousContentCreator
  49   virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) MOZ_OVERRIDE;
  50   virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
  51                                         uint32_t aFilter) MOZ_OVERRIDE;
  52
  53   NS_IMETHOD AttributeChanged(int32_t  aNameSpaceID,
  54                               nsIAtom* aAttribute,
  55                               int32_t  aModType) MOZ_OVERRIDE;
  56
  57   virtual nsSize ComputeAutoSize(nsRenderingContext *aRenderingContext,
  58                                  nsSize aCBSize, nscoord aAvailableWidth,
  59                                  nsSize aMargin, nsSize aBorder,
  60                                  nsSize aPadding, bool aShrinkWrap) MOZ_OVERRIDE;
  61
  62   virtual nscoord GetMinWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
  63   virtual nscoord GetPrefWidth(nsRenderingContext *aRenderingContext) MOZ_OVERRIDE;
  64
  65   virtual bool IsFrameOfType(uint32_t aFlags) const MOZ_OVERRIDE
  66   {
  67     return nsContainerFrame::IsFrameOfType(aFlags &
  68       ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock));
  69   }
  70
  71   /**
  72    * Returns whether the frame and its child should use the native style.
  73    */
  74   bool ShouldUseNativeStyle() const;
  75
  76   virtual Element* GetPseudoElement(nsCSSPseudoElements::Type aType) MOZ_OVERRIDE;
  77
  78 protected:
  79   // Helper function which reflow the anonymous div frame.
  80   void ReflowBarFrame(nsIFrame*                aBarFrame,
  81                       nsPresContext*           aPresContext,
  82                       const nsHTMLReflowState& aReflowState,
  83                       nsReflowStatus&          aStatus);
  84
  85   /**
  86    * The div used to show the progress bar.
  87    * @see nsProgressFrame::CreateAnonymousContent
  88    */
  89   nsCOMPtr<Element> mBarDiv;
  90 };
  91
  92 #endif
  93