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| 1 // Copyright 2015 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 package org.chromium.chrome.browser; | |
| 6 | |
| 7 import android.view.ActionMode; | |
| 8 import android.view.Menu; | |
| 9 import android.view.MenuItem; | |
| 10 | |
| 11 import java.lang.reflect.Field; | |
| 12 import java.lang.reflect.InvocationTargetException; | |
| 13 import java.lang.reflect.Method; | |
| 14 | |
| 15 /** | |
| 16 * A class that represents a custom ActionMode.Callback. | |
| 17 */ | |
| 18 public class CustomSelectionActionModeCallback implements ActionMode.Callback { | |
| 19 | |
| 20 private static boolean sInitializedTypeMethods; | |
| 21 private static Method sGetTypeMethod; | |
| 22 private static int sTypeFloating; | |
| 23 | |
| 24 private ContextualMenuBar mContextualMenuBar; | |
| 25 | |
| 26 /** | |
| 27 * Sets the @param contextualMenuBar. | |
| 28 */ | |
| 29 public void setContextualMenuBar(ContextualMenuBar contextualMenuBar) { | |
| 30 mContextualMenuBar = contextualMenuBar; | |
| 31 } | |
| 32 | |
| 33 @Override | |
| 34 public boolean onPrepareActionMode(ActionMode mode, Menu menu) { | |
| 35 return true; | |
| 36 } | |
| 37 | |
| 38 @Override | |
| 39 public void onDestroyActionMode(ActionMode mode) { | |
| 40 if (isFloatingActionMode(mode)) return; | |
| 41 mContextualMenuBar.hideControls(); | |
| 42 } | |
| 43 | |
| 44 @Override | |
| 45 public boolean onCreateActionMode(ActionMode mode, Menu menu) { | |
| 46 if (isFloatingActionMode(mode)) return true; | |
| 47 mContextualMenuBar.showControls(); | |
| 48 return true; | |
| 49 } | |
| 50 | |
| 51 @Override | |
| 52 public boolean onActionItemClicked(ActionMode mode, MenuItem item) { | |
| 53 return false; | |
| 54 } | |
| 55 | |
| 56 // TODO(tedchoc): Delete this method and replace with just getType() when a
public M SDK is | |
| 57 // available. | |
| 58 private static boolean isFloatingActionMode(ActionMode mode) { | |
| 59 initializeGetTypeMethods(); | |
| 60 | |
| 61 if (sGetTypeMethod == null) return false; | |
| 62 | |
| 63 Object retVal = null; | |
| 64 try { | |
| 65 retVal = sGetTypeMethod.invoke(mode); | |
| 66 } catch (IllegalAccessException e) { | |
| 67 return false; | |
| 68 } catch (IllegalArgumentException e) { | |
| 69 return false; | |
| 70 } catch (InvocationTargetException e) { | |
| 71 return false; | |
| 72 } | |
| 73 if (!(retVal instanceof Integer)) return false; | |
| 74 | |
| 75 return ((Integer) retVal).intValue() == sTypeFloating; | |
| 76 } | |
| 77 | |
| 78 private static void initializeGetTypeMethods() { | |
| 79 if (sInitializedTypeMethods) return; | |
| 80 sInitializedTypeMethods = true; | |
| 81 | |
| 82 Method getType = null; | |
| 83 int typeFloating = -1; | |
| 84 try { | |
| 85 getType = ActionMode.class.getMethod("getType"); | |
| 86 } catch (NoSuchMethodException e) { | |
| 87 return; | |
| 88 } | |
| 89 | |
| 90 try { | |
| 91 Field field = ActionMode.class.getField("TYPE_FLOATING"); | |
| 92 Object value = field.get(null); | |
| 93 | |
| 94 if (value instanceof Integer) { | |
| 95 typeFloating = (Integer) value; | |
| 96 } else { | |
| 97 return; | |
| 98 } | |
| 99 } catch (NoSuchFieldException e) { | |
| 100 return; | |
| 101 } catch (IllegalAccessException e) { | |
| 102 return; | |
| 103 } catch (IllegalArgumentException e) { | |
| 104 return; | |
| 105 } | |
| 106 | |
| 107 sGetTypeMethod = getType; | |
| 108 sTypeFloating = typeFloating; | |
| 109 } | |
| 110 } | |
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Chromium Code Reviews
Issue 1292923004:
Refactor chrome's action mode logics and namings (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master