LCOV - code coverage report
Current view: top level - widget - nsNativeTheme.h (source / functions) Hit Total Coverage
Test: output.info Lines: 4 13 30.8 %
Date: 2017-07-14 16:53:18 Functions: 2 8 25.0 %
Legend: Lines: hit not hit

          Line data    Source code
       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             : // This defines a common base class for nsITheme implementations, to reduce
       7             : // code duplication.
       8             : 
       9             : #include "nsAlgorithm.h"
      10             : #include "nsIAtom.h"
      11             : #include "nsCOMPtr.h"
      12             : #include "nsString.h"
      13             : #include "nsMargin.h"
      14             : #include "nsGkAtoms.h"
      15             : #include "nsTArray.h"
      16             : #include "nsITimer.h"
      17             : #include "nsIContent.h"
      18             : 
      19             : class nsIFrame;
      20             : class nsIPresShell;
      21             : class nsPresContext;
      22             : 
      23             : namespace mozilla {
      24             : class EventStates;
      25             : } // namespace mozilla
      26             : 
      27             : class nsNativeTheme : public nsITimerCallback
      28             : {
      29             :  protected:
      30           0 :   virtual ~nsNativeTheme() {}
      31             : 
      32             :   NS_DECL_ISUPPORTS
      33             :   NS_DECL_NSITIMERCALLBACK
      34             : 
      35             :   enum ScrollbarButtonType {
      36             :     eScrollbarButton_UpTop   = 0,
      37             :     eScrollbarButton_Down    = 1 << 0,
      38             :     eScrollbarButton_Bottom  = 1 << 1
      39             :   };
      40             : 
      41             :   enum TreeSortDirection {
      42             :     eTreeSortDirection_Descending,
      43             :     eTreeSortDirection_Natural,
      44             :     eTreeSortDirection_Ascending
      45             :   };
      46             : 
      47             :   nsNativeTheme();
      48             : 
      49             :   // Returns the content state (hover, focus, etc), see EventStateManager.h
      50             :   mozilla::EventStates GetContentState(nsIFrame* aFrame, uint8_t aWidgetType);
      51             : 
      52             :   // Returns whether the widget is already styled by content
      53             :   // Normally called from ThemeSupportsWidget to turn off native theming
      54             :   // for elements that are already styled.
      55             :   bool IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
      56             :                         uint8_t aWidgetType);                                              
      57             : 
      58             :   // Accessors to widget-specific state information
      59             : 
      60             :   bool IsDisabled(nsIFrame* aFrame, mozilla::EventStates aEventStates);
      61             : 
      62             :   // RTL chrome direction
      63             :   static bool IsFrameRTL(nsIFrame* aFrame);
      64             : 
      65             :   bool IsHTMLContent(nsIFrame *aFrame);
      66             :   
      67             :   // button:
      68          18 :   bool IsDefaultButton(nsIFrame* aFrame) {
      69          18 :     return CheckBooleanAttr(aFrame, nsGkAtoms::_default);
      70             :   }
      71             : 
      72             :   bool IsButtonTypeMenu(nsIFrame* aFrame);
      73             : 
      74             :   // checkbox:
      75             :   bool IsChecked(nsIFrame* aFrame) {
      76             :     return GetCheckedOrSelected(aFrame, false);
      77             :   }
      78             : 
      79             :   // radiobutton:
      80             :   bool IsSelected(nsIFrame* aFrame) {
      81             :     return GetCheckedOrSelected(aFrame, true);
      82             :   }
      83             : 
      84           0 :   bool IsFocused(nsIFrame* aFrame) {
      85           0 :     return CheckBooleanAttr(aFrame, nsGkAtoms::focused);
      86             :   }
      87             : 
      88             :   // scrollbar button:
      89             :   int32_t GetScrollbarButtonType(nsIFrame* aFrame);
      90             : 
      91             :   // tab:
      92           0 :   bool IsSelectedTab(nsIFrame* aFrame) {
      93           0 :     return CheckBooleanAttr(aFrame, nsGkAtoms::visuallyselected);
      94             :   }
      95             :   
      96             :   bool IsNextToSelectedTab(nsIFrame* aFrame, int32_t aOffset);
      97             :   
      98             :   bool IsBeforeSelectedTab(nsIFrame* aFrame) {
      99             :     return IsNextToSelectedTab(aFrame, -1);
     100             :   }
     101             :   
     102             :   bool IsAfterSelectedTab(nsIFrame* aFrame) {
     103             :     return IsNextToSelectedTab(aFrame, 1);
     104             :   }
     105             : 
     106             :   bool IsLeftToSelectedTab(nsIFrame* aFrame) {
     107             :     return IsFrameRTL(aFrame) ? IsAfterSelectedTab(aFrame) : IsBeforeSelectedTab(aFrame);
     108             :   }
     109             : 
     110             :   bool IsRightToSelectedTab(nsIFrame* aFrame) {
     111             :     return IsFrameRTL(aFrame) ? IsBeforeSelectedTab(aFrame) : IsAfterSelectedTab(aFrame);
     112             :   }
     113             : 
     114             :   // button / toolbarbutton:
     115           0 :   bool IsCheckedButton(nsIFrame* aFrame) {
     116           0 :     return CheckBooleanAttr(aFrame, nsGkAtoms::checked);
     117             :   }
     118             : 
     119             :   bool IsSelectedButton(nsIFrame* aFrame) {
     120             :     return CheckBooleanAttr(aFrame, nsGkAtoms::checked) ||
     121             :            CheckBooleanAttr(aFrame, nsGkAtoms::selected);
     122             :   }
     123             : 
     124           0 :   bool IsOpenButton(nsIFrame* aFrame) {
     125           0 :     return CheckBooleanAttr(aFrame, nsGkAtoms::open);
     126             :   }
     127             : 
     128             :   bool IsPressedButton(nsIFrame* aFrame);
     129             : 
     130             :   // treeheadercell:
     131             :   TreeSortDirection GetTreeSortDirection(nsIFrame* aFrame);
     132             :   bool IsLastTreeHeaderCell(nsIFrame* aFrame);
     133             : 
     134             :   // tab:
     135             :   bool IsBottomTab(nsIFrame* aFrame);
     136             :   bool IsFirstTab(nsIFrame* aFrame);
     137             :   
     138             :   bool IsHorizontal(nsIFrame* aFrame);
     139             : 
     140             :   // progressbar:
     141             :   bool IsIndeterminateProgress(nsIFrame* aFrame,
     142             :                                mozilla::EventStates aEventStates);
     143             :   bool IsVerticalProgress(nsIFrame* aFrame);
     144             : 
     145             :   // meter:
     146             :   bool IsVerticalMeter(nsIFrame* aFrame);
     147             : 
     148             :   // textfield:
     149          18 :   bool IsReadOnly(nsIFrame* aFrame) {
     150          18 :       return CheckBooleanAttr(aFrame, nsGkAtoms::readonly);
     151             :   }
     152             : 
     153             :   // menupopup:
     154             :   bool IsSubmenu(nsIFrame* aFrame, bool* aLeftOfParent);
     155             : 
     156             :   // True if it's not a menubar item or menulist item
     157             :   bool IsRegularMenuItem(nsIFrame *aFrame);
     158             : 
     159             :   bool IsMenuListEditable(nsIFrame *aFrame);
     160             : 
     161             :   nsIPresShell *GetPresShell(nsIFrame* aFrame);
     162             :   static bool CheckBooleanAttr(nsIFrame* aFrame, nsIAtom* aAtom);
     163             :   static int32_t CheckIntAttr(nsIFrame* aFrame, nsIAtom* aAtom, int32_t defaultValue);
     164             : 
     165             :   // Helpers for progressbar.
     166             :   static double GetProgressValue(nsIFrame* aFrame);
     167             :   static double GetProgressMaxValue(nsIFrame* aFrame);
     168             : 
     169             :   bool GetCheckedOrSelected(nsIFrame* aFrame, bool aCheckSelected);
     170             :   bool GetIndeterminate(nsIFrame* aFrame);
     171             : 
     172             :   bool QueueAnimatedContentForRefresh(nsIContent* aContent,
     173             :                                         uint32_t aMinimumFrameRate);
     174             : 
     175             :   nsIFrame* GetAdjacentSiblingFrameWithSameAppearance(nsIFrame* aFrame,
     176             :                                                       bool aNextSibling);
     177             : 
     178             :   bool IsRangeHorizontal(nsIFrame* aFrame);
     179             : 
     180             :   // scrollbar
     181             :   bool IsDarkBackground(nsIFrame* aFrame);
     182             : 
     183             :  private:
     184             :   uint32_t mAnimatedContentTimeout;
     185             :   nsCOMPtr<nsITimer> mAnimatedContentTimer;
     186             :   AutoTArray<nsCOMPtr<nsIContent>, 20> mAnimatedContentList;
     187             : };

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