1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package android.webkit;
18
19import android.app.Activity;
20import android.app.SearchManager;
21import android.content.ClipboardManager;
22import android.content.Context;
23import android.content.Intent;
24import android.provider.Browser;
25import android.view.ActionMode;
26import android.view.Menu;
27import android.view.MenuItem;
28
29class SelectActionModeCallback implements ActionMode.Callback {
30    private WebViewClassic mWebView;
31    private ActionMode mActionMode;
32    private boolean mIsTextSelected = true;
33
34    void setWebView(WebViewClassic webView) {
35        mWebView = webView;
36    }
37
38    void setTextSelected(boolean isTextSelected) {
39        mIsTextSelected = isTextSelected;
40    }
41
42    void finish() {
43        // It is possible that onCreateActionMode was never called, in the case
44        // where there is no ActionBar, for example.
45        if (mActionMode != null) {
46            mActionMode.finish();
47        }
48    }
49
50    // ActionMode.Callback implementation
51
52    @Override
53    public boolean onCreateActionMode(ActionMode mode, Menu menu) {
54        mode.getMenuInflater().inflate(com.android.internal.R.menu.webview_copy, menu);
55
56        final Context context = mWebView.getContext();
57        mode.setTitle(context.getString(com.android.internal.R.string.textSelectionCABTitle));
58        mode.setTitleOptionalHint(true);
59
60        // If the action mode UI we're running in isn't capable of taking window focus
61        // the user won't be able to type into the find on page UI. Disable this functionality.
62        // (Note that this should only happen in floating dialog windows.)
63        // This can be removed once we can handle multiple focusable windows at a time
64        // in a better way.
65        ClipboardManager cm = (ClipboardManager)(context
66                .getSystemService(Context.CLIPBOARD_SERVICE));
67        boolean isFocusable = mode.isUiFocusable();
68        boolean isEditable = mWebView.focusCandidateIsEditableText();
69        boolean canPaste = isEditable && cm.hasPrimaryClip() && isFocusable;
70        boolean canFind = !isEditable && isFocusable;
71        boolean canCut = isEditable && mIsTextSelected && isFocusable;
72        boolean canCopy = mIsTextSelected;
73        boolean canWebSearch = mIsTextSelected;
74        setMenuVisibility(menu, canFind, com.android.internal.R.id.find);
75        setMenuVisibility(menu, canPaste, com.android.internal.R.id.paste);
76        setMenuVisibility(menu, canCut, com.android.internal.R.id.cut);
77        setMenuVisibility(menu, canCopy, com.android.internal.R.id.copy);
78        setMenuVisibility(menu, canWebSearch, com.android.internal.R.id.websearch);
79        mActionMode = mode;
80        return true;
81    }
82
83    @Override
84    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
85        return true;
86    }
87
88    @Override
89    public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
90        switch(item.getItemId()) {
91            case android.R.id.cut:
92                mWebView.cutSelection();
93                mode.finish();
94                break;
95
96            case android.R.id.copy:
97                mWebView.copySelection();
98                mode.finish();
99                break;
100
101            case android.R.id.paste:
102                mWebView.pasteFromClipboard();
103                mode.finish();
104                break;
105
106            case com.android.internal.R.id.share:
107                String selection = mWebView.getSelection();
108                Browser.sendString(mWebView.getContext(), selection);
109                mode.finish();
110                break;
111
112            case com.android.internal.R.id.select_all:
113                mWebView.selectAll();
114                break;
115
116            case com.android.internal.R.id.find:
117                String sel= mWebView.getSelection();
118                mode.finish();
119                mWebView.showFindDialog(sel, false);
120                break;
121            case com.android.internal.R.id.websearch:
122                mode.finish();
123                Intent i = new Intent(Intent.ACTION_WEB_SEARCH);
124                i.putExtra(SearchManager.EXTRA_NEW_SEARCH, true);
125                i.putExtra(SearchManager.QUERY, mWebView.getSelection());
126                if (!(mWebView.getContext() instanceof Activity)) {
127                    i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
128                }
129                mWebView.getContext().startActivity(i);
130                break;
131
132            default:
133                return false;
134        }
135        return true;
136    }
137
138    @Override
139    public void onDestroyActionMode(ActionMode mode) {
140        mWebView.selectionDone();
141    }
142
143    private void setMenuVisibility(Menu menu, boolean visible, int resourceId) {
144        final MenuItem item = menu.findItem(resourceId);
145        if (item != null) {
146            item.setVisible(visible);
147        }
148    }
149}
150