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comparison: toolkit/components/typeaheadfind/nsTypeAheadFind.h
toolkit/components/typeaheadfind/nsTypeAheadFind.h
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| 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 #include "nsCycleCollectionParticipant.h" | |
| 7 #include "nsISelectionController.h" | |
| 8 #include "nsIController.h" | |
| 9 #include "nsIControllers.h" | |
| 10 #include "nsIObserver.h" | |
| 11 #include "nsUnicharUtils.h" | |
| 12 #include "nsIFind.h" | |
| 13 #include "nsIWebBrowserFind.h" | |
| 14 #include "nsWeakReference.h" | |
| 15 #include "nsISelection.h" | |
| 16 #include "nsIDOMRange.h" | |
| 17 #include "nsIDocShellTreeItem.h" | |
| 18 #include "nsITypeAheadFind.h" | |
| 19 #include "nsISound.h" | |
| 20 | |
| 21 class nsIPresShell; | |
| 22 class nsPresContext; | |
| 23 | |
| 24 #define TYPEAHEADFIND_NOTFOUND_WAV_URL \ | |
| 25 "chrome://global/content/notfound.wav" | |
| 26 | |
| 27 class nsTypeAheadFind : public nsITypeAheadFind, | |
| 28 public nsIObserver, | |
| 29 public nsSupportsWeakReference | |
| 30 { | |
| 31 public: | |
| 32 nsTypeAheadFind(); | |
| 33 virtual ~nsTypeAheadFind(); | |
| 34 | |
| 35 NS_DECL_CYCLE_COLLECTING_ISUPPORTS | |
| 36 NS_DECL_NSITYPEAHEADFIND | |
| 37 NS_DECL_NSIOBSERVER | |
| 38 | |
| 39 NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsTypeAheadFind, nsITypeAheadFind) | |
| 40 | |
| 41 protected: | |
| 42 nsresult PrefsReset(); | |
| 43 | |
| 44 void SaveFind(); | |
| 45 void PlayNotFoundSound(); | |
| 46 nsresult GetWebBrowserFind(nsIDocShell *aDocShell, | |
| 47 nsIWebBrowserFind **aWebBrowserFind); | |
| 48 | |
| 49 void RangeStartsInsideLink(nsIDOMRange *aRange, nsIPresShell *aPresShell, | |
| 50 bool *aIsInsideLink, bool *aIsStartingLink); | |
| 51 | |
| 52 void GetSelection(nsIPresShell *aPresShell, nsISelectionController **aSelCon, | |
| 53 nsISelection **aDomSel); | |
| 54 // *aNewRange may not be collapsed. If you want to collapse it in a | |
| 55 // particular way, you need to do it yourself. | |
| 56 bool IsRangeVisible(nsIPresShell *aPresShell, nsPresContext *aPresContext, | |
| 57 nsIDOMRange *aRange, bool aMustBeVisible, | |
| 58 bool aGetTopVisibleLeaf, nsIDOMRange **aNewRange, | |
| 59 bool *aUsesIndependentSelection); | |
| 60 nsresult FindItNow(nsIPresShell *aPresShell, bool aIsLinksOnly, | |
| 61 bool aIsFirstVisiblePreferred, bool aFindPrev, | |
| 62 uint16_t* aResult); | |
| 63 nsresult GetSearchContainers(nsISupports *aContainer, | |
| 64 nsISelectionController *aSelectionController, | |
| 65 bool aIsFirstVisiblePreferred, | |
| 66 bool aFindPrev, nsIPresShell **aPresShell, | |
| 67 nsPresContext **aPresContext); | |
| 68 | |
| 69 // Get the pres shell from mPresShell and return it only if it is still | |
| 70 // attached to the DOM window. | |
| 71 NS_HIDDEN_(already_AddRefed<nsIPresShell>) GetPresShell(); | |
| 72 | |
| 73 // Current find state | |
| 74 nsString mTypeAheadBuffer; | |
| 75 nsCString mNotFoundSoundURL; | |
| 76 | |
| 77 // PRBools are used instead of PRPackedBools because the address of the | |
| 78 // boolean variable is getting passed into a method. | |
| 79 bool mStartLinksOnlyPref; | |
| 80 bool mCaretBrowsingOn; | |
| 81 nsCOMPtr<nsIDOMElement> mFoundLink; // Most recent elem found, if a link | |
| 82 nsCOMPtr<nsIDOMElement> mFoundEditable; // Most recent elem found, if editable | |
| 83 nsCOMPtr<nsIDOMWindow> mCurrentWindow; | |
| 84 // mLastFindLength is the character length of the last find string. It is used for | |
| 85 // disabling the "not found" sound when using backspace or delete | |
| 86 uint32_t mLastFindLength; | |
| 87 | |
| 88 // Sound is played asynchronously on some platforms. | |
| 89 // If we destroy mSoundInterface before sound has played, it won't play | |
| 90 nsCOMPtr<nsISound> mSoundInterface; | |
| 91 bool mIsSoundInitialized; | |
| 92 | |
| 93 // where selection was when user started the find | |
| 94 nsCOMPtr<nsIDOMRange> mStartFindRange; | |
| 95 nsCOMPtr<nsIDOMRange> mSearchRange; | |
| 96 nsCOMPtr<nsIDOMRange> mStartPointRange; | |
| 97 nsCOMPtr<nsIDOMRange> mEndPointRange; | |
| 98 | |
| 99 // Cached useful interfaces | |
| 100 nsCOMPtr<nsIFind> mFind; | |
| 101 | |
| 102 bool mCaseSensitive; | |
| 103 | |
| 104 bool EnsureFind() { | |
| 105 if (mFind) { | |
| 106 return true; | |
| 107 } | |
| 108 | |
| 109 mFind = do_CreateInstance("@mozilla.org/embedcomp/rangefind;1"); | |
| 110 if (!mFind) { | |
| 111 return false; | |
| 112 } | |
| 113 | |
| 114 mFind->SetCaseSensitive(mCaseSensitive); | |
| 115 mFind->SetWordBreaker(nullptr); | |
| 116 | |
| 117 return true; | |
| 118 } | |
| 119 | |
| 120 nsCOMPtr<nsIWebBrowserFind> mWebBrowserFind; | |
| 121 | |
| 122 // The focused content window that we're listening to and its cached objects | |
| 123 nsWeakPtr mDocShell; | |
| 124 nsWeakPtr mPresShell; | |
| 125 nsWeakPtr mSelectionController; | |
| 126 // Most recent match's controller | |
| 127 }; |
