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widget/xpwidgets/nsNativeTheme.h@44a2da4a2ab2 (annotated)

widget/xpwidgets/nsNativeTheme.h

Fri, 16 Jan 2015 04:50:19 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Fri, 16 Jan 2015 04:50:19 +0100

branch

TOR_BUG_9701

changeset 13

44a2da4a2ab2

permissions

-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	// This defines a common base class for nsITheme implementations, to reduce
michael@0	7	// code duplication.
michael@0	8
michael@0	9	#include "nsAlgorithm.h"
michael@0	10	#include "nsIAtom.h"
michael@0	11	#include "nsCOMPtr.h"
michael@0	12	#include "nsString.h"
michael@0	13	#include "nsMargin.h"
michael@0	14	#include "nsGkAtoms.h"
michael@0	15	#include "nsTArray.h"
michael@0	16	#include "nsITimer.h"
michael@0	17	#include "nsIContent.h"
michael@0	18
michael@0	19	class nsIFrame;
michael@0	20	class nsIPresShell;
michael@0	21	class nsPresContext;
michael@0	22
michael@0	23	namespace mozilla {
michael@0	24	class EventStates;
michael@0	25	} // namespace mozilla
michael@0	26
michael@0	27	class nsNativeTheme : public nsITimerCallback
michael@0	28	{
michael@0	29	protected:
michael@0	30
michael@0	31	NS_DECL_ISUPPORTS
michael@0	32	NS_DECL_NSITIMERCALLBACK
michael@0	33
michael@0	34	enum ScrollbarButtonType {
michael@0	35	eScrollbarButton_UpTop = 0,
michael@0	36	eScrollbarButton_Down = 1 << 0,
michael@0	37	eScrollbarButton_Bottom = 1 << 1
michael@0	38	};
michael@0	39
michael@0	40	enum TreeSortDirection {
michael@0	41	eTreeSortDirection_Descending,
michael@0	42	eTreeSortDirection_Natural,
michael@0	43	eTreeSortDirection_Ascending
michael@0	44	};
michael@0	45
michael@0	46	nsNativeTheme();
michael@0	47	virtual ~nsNativeTheme() {}
michael@0	48
michael@0	49	// Returns the content state (hover, focus, etc), see EventStateManager.h
michael@0	50	mozilla::EventStates GetContentState(nsIFrame* aFrame, uint8_t aWidgetType);
michael@0	51
michael@0	52	// Returns whether the widget is already styled by content
michael@0	53	// Normally called from ThemeSupportsWidget to turn off native theming
michael@0	54	// for elements that are already styled.
michael@0	55	bool IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
michael@0	56	uint8_t aWidgetType);
michael@0	57
michael@0	58	// Accessors to widget-specific state information
michael@0	59
michael@0	60	bool IsDisabled(nsIFrame* aFrame, mozilla::EventStates aEventStates);
michael@0	61
michael@0	62	// RTL chrome direction
michael@0	63	bool IsFrameRTL(nsIFrame* aFrame);
michael@0	64
michael@0	65	bool IsHTMLContent(nsIFrame *aFrame);
michael@0	66
michael@0	67	// button:
michael@0	68	bool IsDefaultButton(nsIFrame* aFrame) {
michael@0	69	return CheckBooleanAttr(aFrame, nsGkAtoms::_default);
michael@0	70	}
michael@0	71
michael@0	72	bool IsButtonTypeMenu(nsIFrame* aFrame);
michael@0	73
michael@0	74	// checkbox:
michael@0	75	bool IsChecked(nsIFrame* aFrame) {
michael@0	76	return GetCheckedOrSelected(aFrame, false);
michael@0	77	}
michael@0	78
michael@0	79	// radiobutton:
michael@0	80	bool IsSelected(nsIFrame* aFrame) {
michael@0	81	return GetCheckedOrSelected(aFrame, true);
michael@0	82	}
michael@0	83
michael@0	84	bool IsFocused(nsIFrame* aFrame) {
michael@0	85	return CheckBooleanAttr(aFrame, nsGkAtoms::focused);
michael@0	86	}
michael@0	87
michael@0	88	// scrollbar button:
michael@0	89	int32_t GetScrollbarButtonType(nsIFrame* aFrame);
michael@0	90
michael@0	91	// tab:
michael@0	92	bool IsSelectedTab(nsIFrame* aFrame) {
michael@0	93	return CheckBooleanAttr(aFrame, nsGkAtoms::selected);
michael@0	94	}
michael@0	95
michael@0	96	bool IsNextToSelectedTab(nsIFrame* aFrame, int32_t aOffset);
michael@0	97
michael@0	98	bool IsBeforeSelectedTab(nsIFrame* aFrame) {
michael@0	99	return IsNextToSelectedTab(aFrame, -1);
michael@0	100	}
michael@0	101
michael@0	102	bool IsAfterSelectedTab(nsIFrame* aFrame) {
michael@0	103	return IsNextToSelectedTab(aFrame, 1);
michael@0	104	}
michael@0	105
michael@0	106	bool IsLeftToSelectedTab(nsIFrame* aFrame) {
michael@0	107	return IsFrameRTL(aFrame) ? IsAfterSelectedTab(aFrame) : IsBeforeSelectedTab(aFrame);
michael@0	108	}
michael@0	109
michael@0	110	bool IsRightToSelectedTab(nsIFrame* aFrame) {
michael@0	111	return IsFrameRTL(aFrame) ? IsBeforeSelectedTab(aFrame) : IsAfterSelectedTab(aFrame);
michael@0	112	}
michael@0	113
michael@0	114	// button / toolbarbutton:
michael@0	115	bool IsCheckedButton(nsIFrame* aFrame) {
michael@0	116	return CheckBooleanAttr(aFrame, nsGkAtoms::checked);
michael@0	117	}
michael@0	118
michael@0	119	bool IsSelectedButton(nsIFrame* aFrame) {
michael@0	120	return CheckBooleanAttr(aFrame, nsGkAtoms::checked) ||
michael@0	121	CheckBooleanAttr(aFrame, nsGkAtoms::selected);
michael@0	122	}
michael@0	123
michael@0	124	bool IsOpenButton(nsIFrame* aFrame) {
michael@0	125	return CheckBooleanAttr(aFrame, nsGkAtoms::open);
michael@0	126	}
michael@0	127
michael@0	128	bool IsPressedButton(nsIFrame* aFrame);
michael@0	129
michael@0	130	// treeheadercell:
michael@0	131	TreeSortDirection GetTreeSortDirection(nsIFrame* aFrame);
michael@0	132	bool IsLastTreeHeaderCell(nsIFrame* aFrame);
michael@0	133
michael@0	134	// tab:
michael@0	135	bool IsBottomTab(nsIFrame* aFrame);
michael@0	136	bool IsFirstTab(nsIFrame* aFrame);
michael@0	137
michael@0	138	bool IsHorizontal(nsIFrame* aFrame);
michael@0	139
michael@0	140	// progressbar:
michael@0	141	bool IsIndeterminateProgress(nsIFrame* aFrame,
michael@0	142	mozilla::EventStates aEventStates);
michael@0	143	bool IsVerticalProgress(nsIFrame* aFrame);
michael@0	144
michael@0	145	// meter:
michael@0	146	bool IsVerticalMeter(nsIFrame* aFrame);
michael@0	147
michael@0	148	// textfield:
michael@0	149	bool IsReadOnly(nsIFrame* aFrame) {
michael@0	150	return CheckBooleanAttr(aFrame, nsGkAtoms::readonly);
michael@0	151	}
michael@0	152
michael@0	153	// menupopup:
michael@0	154	bool IsSubmenu(nsIFrame* aFrame, bool* aLeftOfParent);
michael@0	155
michael@0	156	// True if it's not a menubar item or menulist item
michael@0	157	bool IsRegularMenuItem(nsIFrame *aFrame);
michael@0	158
michael@0	159	bool IsMenuListEditable(nsIFrame *aFrame);
michael@0	160
michael@0	161	nsIPresShell *GetPresShell(nsIFrame* aFrame);
michael@0	162	static bool CheckBooleanAttr(nsIFrame* aFrame, nsIAtom* aAtom);
michael@0	163	static int32_t CheckIntAttr(nsIFrame* aFrame, nsIAtom* aAtom, int32_t defaultValue);
michael@0	164
michael@0	165	// Helpers for progressbar.
michael@0	166	static double GetProgressValue(nsIFrame* aFrame);
michael@0	167	static double GetProgressMaxValue(nsIFrame* aFrame);
michael@0	168
michael@0	169	bool GetCheckedOrSelected(nsIFrame* aFrame, bool aCheckSelected);
michael@0	170	bool GetIndeterminate(nsIFrame* aFrame);
michael@0	171
michael@0	172	bool QueueAnimatedContentForRefresh(nsIContent* aContent,
michael@0	173	uint32_t aMinimumFrameRate);
michael@0	174
michael@0	175	nsIFrame* GetAdjacentSiblingFrameWithSameAppearance(nsIFrame* aFrame,
michael@0	176	bool aNextSibling);
michael@0	177
michael@0	178	bool IsRangeHorizontal(nsIFrame* aFrame);
michael@0	179
michael@0	180	// scrollbar
michael@0	181	bool IsDarkBackground(nsIFrame* aFrame);
michael@0	182
michael@0	183	private:
michael@0	184	uint32_t mAnimatedContentTimeout;
michael@0	185	nsCOMPtr<nsITimer> mAnimatedContentTimer;
michael@0	186	nsAutoTArray<nsCOMPtr<nsIContent>, 20> mAnimatedContentList;
michael@0	187	};