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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CONTENT_BROWSER_RENDERER_HOST_TAP_SUPPRESSION_CONTROLLER_CLIENT_H_ | |
| 6 #define CONTENT_BROWSER_RENDERER_HOST_TAP_SUPPRESSION_CONTROLLER_CLIENT_H_ | |
| 7 | |
| 8 namespace content { | |
| 9 | |
| 10 // This class provides an interface for callbacks made by | |
| 11 // TapSuppressionController. | |
| 12 class TapSuppressionControllerClient { | |
| 13 public: | |
| 14 virtual ~TapSuppressionControllerClient() {} | |
| 15 | |
| 16 // Derived classes should implement this function to return the maximum time | |
| 17 // they allow between a GestureFlingCancel and its corresponding tap down. | |
| 18 virtual int MaxCancelToDownTimeInMs() = 0; | |
| 19 | |
| 20 // Derived classes should implement this function to return the maximum time | |
| 21 // they allow between a single tap's down and up events. | |
| 22 virtual int MaxTapGapTimeInMs() = 0; | |
| 23 | |
| 24 // Called whenever the deferred tap down (if saved) should be dropped totally. | |
| 25 virtual void DropStashedTapDown() = 0; | |
| 26 | |
| 27 // Called whenever the deferred tap down (if saved) should be forwarded to the | |
| 28 // renderer. In this case, the tap down should go back to normal path it was | |
| 29 // on before being deferred. | |
| 30 virtual void ForwardStashedTapDownForDeferral() = 0; | |
| 31 | |
| 32 // Called whenever the deferred tap down (if saved) should be forwarded to the | |
| 33 // renderer. In this case, the tap down should skip deferral filter, because | |
| 34 // it is handled here, and there is no need to delay it more. | |
| 35 virtual void ForwardStashedTapDownSkipDeferral() = 0; | |
| 36 | |
| 37 protected: | |
| 38 TapSuppressionControllerClient() {} | |
| 39 | |
| 40 private: | |
| 41 DISALLOW_COPY_AND_ASSIGN(TapSuppressionControllerClient); | |
| 42 }; | |
| 43 | |
| 44 } // namespace content | |
| 45 | |
| 46 #endif // CONTENT_BROWSER_RENDERER_HOST_TAP_SUPPRESSION_CONTROLLER_CLIENT_H_ | |
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