widget/nsNativeTheme.h
author Doug Turner <doug.turner@gmail.com>
Tue, 03 Feb 2015 17:00:00 +0100
changeset 243715 840987c23fc597bdaad4567c2387ba1aa06c65d0
parent 236314 41c37790896e424e2743811d3d19be00068ce941
child 263652 6ef7ca8f1db3f984dfa255ff6222edca6dc890d6
permissions -rw-r--r--
Bug 1045229 - Beacons are not associated with windows. The current window based filtering that the network monitor does will skip requests that come from sendBeacon(). Here we explictly look to see if the network channel is from beacon by looking at the loadinfo. r=dcamp, a=sledru

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

// This defines a common base class for nsITheme implementations, to reduce
// code duplication.

#include "nsAlgorithm.h"
#include "nsIAtom.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsMargin.h"
#include "nsGkAtoms.h"
#include "nsTArray.h"
#include "nsITimer.h"
#include "nsIContent.h"

class nsIFrame;
class nsIPresShell;
class nsPresContext;

namespace mozilla {
class EventStates;
} // namespace mozilla

class nsNativeTheme : public nsITimerCallback
{
 protected:
  virtual ~nsNativeTheme() {}

  NS_DECL_ISUPPORTS
  NS_DECL_NSITIMERCALLBACK

  enum ScrollbarButtonType {
    eScrollbarButton_UpTop   = 0,
    eScrollbarButton_Down    = 1 << 0,
    eScrollbarButton_Bottom  = 1 << 1
  };

  enum TreeSortDirection {
    eTreeSortDirection_Descending,
    eTreeSortDirection_Natural,
    eTreeSortDirection_Ascending
  };

  nsNativeTheme();

  // Returns the content state (hover, focus, etc), see EventStateManager.h
  mozilla::EventStates GetContentState(nsIFrame* aFrame, uint8_t aWidgetType);

  // Returns whether the widget is already styled by content
  // Normally called from ThemeSupportsWidget to turn off native theming
  // for elements that are already styled.
  bool IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
                        uint8_t aWidgetType);                                              

  // Accessors to widget-specific state information

  bool IsDisabled(nsIFrame* aFrame, mozilla::EventStates aEventStates);

  // RTL chrome direction
  bool IsFrameRTL(nsIFrame* aFrame);

  bool IsHTMLContent(nsIFrame *aFrame);
  
  // button:
  bool IsDefaultButton(nsIFrame* aFrame) {
    return CheckBooleanAttr(aFrame, nsGkAtoms::_default);
  }

  bool IsButtonTypeMenu(nsIFrame* aFrame);

  // checkbox:
  bool IsChecked(nsIFrame* aFrame) {
    return GetCheckedOrSelected(aFrame, false);
  }

  // radiobutton:
  bool IsSelected(nsIFrame* aFrame) {
    return GetCheckedOrSelected(aFrame, true);
  }

  bool IsFocused(nsIFrame* aFrame) {
    return CheckBooleanAttr(aFrame, nsGkAtoms::focused);
  }

  // scrollbar button:
  int32_t GetScrollbarButtonType(nsIFrame* aFrame);

  // tab:
  bool IsSelectedTab(nsIFrame* aFrame) {
    return CheckBooleanAttr(aFrame, nsGkAtoms::selected);
  }
  
  bool IsNextToSelectedTab(nsIFrame* aFrame, int32_t aOffset);
  
  bool IsBeforeSelectedTab(nsIFrame* aFrame) {
    return IsNextToSelectedTab(aFrame, -1);
  }
  
  bool IsAfterSelectedTab(nsIFrame* aFrame) {
    return IsNextToSelectedTab(aFrame, 1);
  }

  bool IsLeftToSelectedTab(nsIFrame* aFrame) {
    return IsFrameRTL(aFrame) ? IsAfterSelectedTab(aFrame) : IsBeforeSelectedTab(aFrame);
  }

  bool IsRightToSelectedTab(nsIFrame* aFrame) {
    return IsFrameRTL(aFrame) ? IsBeforeSelectedTab(aFrame) : IsAfterSelectedTab(aFrame);
  }

  // button / toolbarbutton:
  bool IsCheckedButton(nsIFrame* aFrame) {
    return CheckBooleanAttr(aFrame, nsGkAtoms::checked);
  }

  bool IsSelectedButton(nsIFrame* aFrame) {
    return CheckBooleanAttr(aFrame, nsGkAtoms::checked) ||
           CheckBooleanAttr(aFrame, nsGkAtoms::selected);
  }

  bool IsOpenButton(nsIFrame* aFrame) {
    return CheckBooleanAttr(aFrame, nsGkAtoms::open);
  }

  bool IsPressedButton(nsIFrame* aFrame);

  // treeheadercell:
  TreeSortDirection GetTreeSortDirection(nsIFrame* aFrame);
  bool IsLastTreeHeaderCell(nsIFrame* aFrame);

  // tab:
  bool IsBottomTab(nsIFrame* aFrame);
  bool IsFirstTab(nsIFrame* aFrame);
  
  bool IsHorizontal(nsIFrame* aFrame);

  // progressbar:
  bool IsIndeterminateProgress(nsIFrame* aFrame,
                               mozilla::EventStates aEventStates);
  bool IsVerticalProgress(nsIFrame* aFrame);

  // meter:
  bool IsVerticalMeter(nsIFrame* aFrame);

  // textfield:
  bool IsReadOnly(nsIFrame* aFrame) {
      return CheckBooleanAttr(aFrame, nsGkAtoms::readonly);
  }

  // menupopup:
  bool IsSubmenu(nsIFrame* aFrame, bool* aLeftOfParent);

  // True if it's not a menubar item or menulist item
  bool IsRegularMenuItem(nsIFrame *aFrame);

  bool IsMenuListEditable(nsIFrame *aFrame);

  nsIPresShell *GetPresShell(nsIFrame* aFrame);
  static bool CheckBooleanAttr(nsIFrame* aFrame, nsIAtom* aAtom);
  static int32_t CheckIntAttr(nsIFrame* aFrame, nsIAtom* aAtom, int32_t defaultValue);

  // Helpers for progressbar.
  static double GetProgressValue(nsIFrame* aFrame);
  static double GetProgressMaxValue(nsIFrame* aFrame);

  bool GetCheckedOrSelected(nsIFrame* aFrame, bool aCheckSelected);
  bool GetIndeterminate(nsIFrame* aFrame);

  bool QueueAnimatedContentForRefresh(nsIContent* aContent,
                                        uint32_t aMinimumFrameRate);

  nsIFrame* GetAdjacentSiblingFrameWithSameAppearance(nsIFrame* aFrame,
                                                      bool aNextSibling);

  bool IsRangeHorizontal(nsIFrame* aFrame);

  // scrollbar
  bool IsDarkBackground(nsIFrame* aFrame);

 private:
  uint32_t mAnimatedContentTimeout;
  nsCOMPtr<nsITimer> mAnimatedContentTimer;
  nsAutoTArray<nsCOMPtr<nsIContent>, 20> mAnimatedContentList;
};