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Diffstat (limited to 'src/com/android/browser/FindDialog.java')
| -rw-r--r-- | src/com/android/browser/FindDialog.java | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/com/android/browser/FindDialog.java b/src/com/android/browser/FindDialog.java new file mode 100644 index 00000000..43cd1c40 --- /dev/null +++ b/src/com/android/browser/FindDialog.java @@ -0,0 +1,226 @@ +/* + * Copyright (C) 2007 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.browser; + +import android.app.Dialog; +import android.content.Context; +import android.content.res.Configuration; +import android.os.Bundle; +import android.os.Handler; +import android.os.Message; +import android.text.Editable; +import android.text.Spannable; +import android.text.TextWatcher; +import android.view.Gravity; +import android.view.KeyEvent; +import android.view.View; +import android.view.ViewGroup; +import android.view.Window; +import android.view.WindowManager; +import android.view.inputmethod.InputMethodManager; +import android.webkit.WebView; +import android.widget.EditText; +import android.widget.TextView; + +/* package */ class FindDialog extends Dialog implements TextWatcher { + private WebView mWebView; + private TextView mMatches; + private BrowserActivity mBrowserActivity; + + // Views with which the user can interact. + private View mOk; + private EditText mEditText; + private View mNextButton; + private View mPrevButton; + private View mMatchesView; + + private View.OnClickListener mFindListener = new View.OnClickListener() { + public void onClick(View v) { + findNext(); + } + }; + + private View.OnClickListener mFindCancelListener = + new View.OnClickListener() { + public void onClick(View v) { + dismiss(); + } + }; + + private View.OnClickListener mFindPreviousListener = + new View.OnClickListener() { + public void onClick(View v) { + if (mWebView == null) { + throw new AssertionError("No WebView for FindDialog::onClick"); + } + mWebView.findNext(false); + hideSoftInput(); + } + }; + + /* + * Remove the soft keyboard from the screen. + */ + private void hideSoftInput() { + InputMethodManager imm = (InputMethodManager) + mBrowserActivity.getSystemService(Context.INPUT_METHOD_SERVICE); + imm.hideSoftInputFromWindow(mEditText.getWindowToken(), 0); + } + + private void disableButtons() { + mPrevButton.setEnabled(false); + mNextButton.setEnabled(false); + mPrevButton.setFocusable(false); + mNextButton.setFocusable(false); + } + + /* package */ void setWebView(WebView webview) { + mWebView = webview; + } + + /* package */ FindDialog(BrowserActivity context) { + super(context, R.style.FindDialogTheme); + mBrowserActivity = context; + setCanceledOnTouchOutside(true); + } + + /* package */ void onConfigurationChanged(Configuration newConfig) { + // FIXME: Would like to call mWebView.findAll again, so that the + // matches would refresh, but the new picture has not yet been + // created, so it is too soon. + mEditText.getText().clear(); + } + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + Window theWindow = getWindow(); + theWindow.setGravity(Gravity.BOTTOM|Gravity.FILL_HORIZONTAL); + + setContentView(R.layout.browser_find); + + theWindow.setLayout(ViewGroup.LayoutParams.FILL_PARENT, + ViewGroup.LayoutParams.WRAP_CONTENT); + + mEditText = (EditText) findViewById(R.id.edit); + + View button = findViewById(R.id.next); + button.setOnClickListener(mFindListener); + mNextButton = button; + + button = findViewById(R.id.previous); + button.setOnClickListener(mFindPreviousListener); + mPrevButton = button; + + button = findViewById(R.id.done); + button.setOnClickListener(mFindCancelListener); + mOk = button; + + mMatches = (TextView) findViewById(R.id.matches); + mMatchesView = findViewById(R.id.matches_view); + disableButtons(); + theWindow.setSoftInputMode( + WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE); + } + + public void dismiss() { + super.dismiss(); + mBrowserActivity.closeFind(); + mWebView.clearMatches(); + } + + @Override + public boolean dispatchKeyEvent(KeyEvent event) { + int code = event.getKeyCode(); + boolean up = event.getAction() == KeyEvent.ACTION_UP; + switch (code) { + case KeyEvent.KEYCODE_DPAD_CENTER: + case KeyEvent.KEYCODE_ENTER: + if (!mEditText.hasFocus()) { + break; + } + if (up) { + findNext(); + } + return true; + default: + break; + } + return super.dispatchKeyEvent(event); + } + + private void findNext() { + if (mWebView == null) { + throw new AssertionError("No WebView for FindDialog::findNext"); + } + mWebView.findNext(true); + hideSoftInput(); + } + + public void show() { + super.show(); + mEditText.requestFocus(); + mEditText.setText(""); + Spannable span = (Spannable) mEditText.getText(); + span.setSpan(this, 0, span.length(), + Spannable.SPAN_INCLUSIVE_INCLUSIVE); + mMatches.setText(R.string.zero); + disableButtons(); + } + + // TextWatcher methods + public void beforeTextChanged(CharSequence s, + int start, + int count, + int after) { + } + + public void onTextChanged(CharSequence s, + int start, + int before, + int count) { + if (mWebView == null) { + throw new AssertionError( + "No WebView for FindDialog::onTextChanged"); + } + CharSequence find = mEditText.getText(); + if (0 == find.length()) { + disableButtons(); + mWebView.clearMatches(); + mMatchesView.setVisibility(View.INVISIBLE); + } else { + mMatchesView.setVisibility(View.VISIBLE); + int found = mWebView.findAll(find.toString()); + mMatches.setText(Integer.toString(found)); + if (found < 2) { + disableButtons(); + if (found == 0) { + mMatches.setText(R.string.zero); + } + } else { + mPrevButton.setFocusable(true); + mNextButton.setFocusable(true); + mPrevButton.setEnabled(true); + mNextButton.setEnabled(true); + } + } + } + + public void afterTextChanged(Editable s) { + } +} |