The Tor Browser / file comparison
comparison: layout/base/nsIPercentHeightObserver.h
layout/base/nsIPercentHeightObserver.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 #ifndef nsIPercentHeightObserver_h___ | |
| 7 #define nsIPercentHeightObserver_h___ | |
| 8 | |
| 9 #include "nsQueryFrame.h" | |
| 10 | |
| 11 struct nsHTMLReflowState; | |
| 12 | |
| 13 /** | |
| 14 * This interface is supported by frames that need to provide computed height | |
| 15 * values to children during reflow which would otherwise not happen. Currently only | |
| 16 * table cells support this. | |
| 17 */ | |
| 18 class nsIPercentHeightObserver | |
| 19 { | |
| 20 public: | |
| 21 NS_DECL_QUERYFRAME_TARGET(nsIPercentHeightObserver) | |
| 22 | |
| 23 // Notify the observer that aReflowState has no computed height, but it has a percent height | |
| 24 virtual void NotifyPercentHeight(const nsHTMLReflowState& aReflowState) = 0; | |
| 25 | |
| 26 // Ask the observer if it should observe aReflowState.frame | |
| 27 virtual bool NeedsToObserve(const nsHTMLReflowState& aReflowState) = 0; | |
| 28 }; | |
| 29 | |
| 30 #endif // nsIPercentHeightObserver_h___ |
