1 // Copyright (c) 2010 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 CHROME_BROWSER_INSTANT_INSTANT_DELEGATE_H_ 6 #define CHROME_BROWSER_INSTANT_INSTANT_DELEGATE_H_ 7 #pragma once 8 9 #include "base/string16.h" 10 #include "chrome/common/instant_types.h" 11 12 class TabContentsWrapper; 13 14 namespace gfx { 15 class Rect; 16 } 17 18 // InstantController's delegate. Normally the Browser implements this. See 19 // InstantController for details. 20 class InstantDelegate { 21 public: 22 // Invoked when instant starts loading, but before the preview tab contents is 23 // ready to be shown. This may be used to animate between the states. 24 // This is followed by ShowInstant and/or HideInstant. 25 virtual void PrepareForInstant() = 0; 26 27 // Invoked when the instant TabContents should be shown. 28 virtual void ShowInstant(TabContentsWrapper* preview_contents) = 0; 29 30 // Invoked when the instant TabContents should be hidden. Instant still may be 31 // active at the time this is invoked. Use |is_active()| to determine if 32 // instant is still active. 33 virtual void HideInstant() = 0; 34 35 // Invoked when the user does something that should result in the preview 36 // TabContents becoming the active TabContents. The delegate takes ownership 37 // of the supplied TabContents. 38 virtual void CommitInstant(TabContentsWrapper* preview_contents) = 0; 39 40 // Invoked when the suggested text is to change to |text|. 41 virtual void SetSuggestedText(const string16& text, 42 InstantCompleteBehavior behavior) = 0; 43 44 // Returns the bounds instant will be placed at in screen coordinates. 45 virtual gfx::Rect GetInstantBounds() = 0; 46 47 protected: 48 virtual ~InstantDelegate() {} 49 }; 50 51 #endif // CHROME_BROWSER_INSTANT_INSTANT_DELEGATE_H_ 52
