Add cut/copy/paste contextual menu. (220cf991) · Commits · e / os / android_packages_apps_ExactCalculator

src/com/android/calculator2/CalculatorEditText.java

+103 −8

Original line number	Original line	Diff line number	Diff line
	@@ -19,11 +19,14 @@ package com.android.calculator2;
	import android.content.ClipData;		import android.content.ClipData;
	import android.content.ClipboardManager;		import android.content.ClipboardManager;
	import android.content.Context;		import android.content.Context;
			import android.content.res.Resources;
	import android.text.Editable;		import android.text.Editable;
	import android.text.InputType;		import android.text.InputType;
	import android.text.TextUtils;		import android.text.TextUtils;
	import android.util.AttributeSet;		import android.util.AttributeSet;
			import android.util.Log;
	import android.view.ActionMode;		import android.view.ActionMode;
			import android.view.ContextMenu;
	import android.view.Menu;		import android.view.Menu;
	import android.view.MenuItem;		import android.view.MenuItem;
	import android.view.MotionEvent;		import android.view.MotionEvent;
	@@ -32,6 +35,12 @@ import android.widget.Toast;

	public class CalculatorEditText extends EditText {		public class CalculatorEditText extends EditText {

			private static final String LOG_TAG = "Calculator2";
			private static final int CUT = 0;
			private static final int COPY = 1;
			private static final int PASTE = 2;
			private String[] mMenuItemsStrings;

	public CalculatorEditText(Context context, AttributeSet attrs) {		public CalculatorEditText(Context context, AttributeSet attrs) {
	super(context, attrs);		super(context, attrs);
	setCustomSelectionActionModeCallback(new NoTextSelectionMode());		setCustomSelectionActionModeCallback(new NoTextSelectionMode());
	@@ -49,22 +58,108 @@ public class CalculatorEditText extends EditText {

	@Override		@Override
	public boolean performLongClick() {		public boolean performLongClick() {
	final Editable text = getText();		showContextMenu();
	if (TextUtils.isEmpty(text)) {		return true;
	return false;
	}		}

			private class MenuHandler implements MenuItem.OnMenuItemClickListener {
			public boolean onMenuItemClick(MenuItem item) {
			return onTextContextMenuItem(item.getTitle());
			}
			}

			public boolean onTextContextMenuItem(CharSequence title) {
			boolean handled = false;
			if (TextUtils.equals(title, mMenuItemsStrings[CUT])) {
			cutContent();
			handled = true;
			} else if (TextUtils.equals(title, mMenuItemsStrings[COPY])) {
	copyContent();		copyContent();
	return true;		handled = true;
			} else if (TextUtils.equals(title, mMenuItemsStrings[PASTE])) {
			pasteContent();
			handled = true;
			}
			return handled;
			}

			@Override
			public void onCreateContextMenu(ContextMenu menu) {
			MenuHandler handler = new MenuHandler();
			if (mMenuItemsStrings == null) {
			Resources resources = getResources();
			mMenuItemsStrings = new String[3];
			mMenuItemsStrings[CUT] = resources.getString(android.R.string.cut);
			mMenuItemsStrings[COPY] = resources.getString(android.R.string.copy);
			mMenuItemsStrings[PASTE] = resources.getString(android.R.string.paste);
			}
			for (int i = 0; i < mMenuItemsStrings.length; i++) {
			menu.add(Menu.NONE, i, i, mMenuItemsStrings[i]).setOnMenuItemClickListener(handler);
			}
			if (getText().length() == 0) {
			menu.getItem(CUT).setVisible(false);
			menu.getItem(COPY).setVisible(false);
			}
			ClipData primaryClip = getPrimaryClip();
			if (primaryClip == null \|\| primaryClip.getItemCount() == 0
			\|\| !canPaste(primaryClip.getItemAt(0).coerceToText(getContext()))) {
			menu.getItem(PASTE).setVisible(false);
			}
			}

			private void setPrimaryClip(ClipData clip) {
			ClipboardManager clipboard = (ClipboardManager) getContext().
			getSystemService(Context.CLIPBOARD_SERVICE);
			clipboard.setPrimaryClip(clip);
	}		}

	private void copyContent() {		private void copyContent() {
	final Editable text = getText();		final Editable text = getText();
	setSelection(0, text.length());		int textLength = text.length();
			setSelection(0, textLength);
	ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(		ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(
	Context.CLIPBOARD_SERVICE);		Context.CLIPBOARD_SERVICE);
	clipboard.setPrimaryClip(ClipData.newPlainText(null, text));		clipboard.setPrimaryClip(ClipData.newPlainText(null, text));
	Toast.makeText(getContext(), R.string.text_copied_toast, Toast.LENGTH_SHORT).show();		Toast.makeText(getContext(), R.string.text_copied_toast, Toast.LENGTH_SHORT).show();
			setSelection(textLength);
			}

			private void cutContent() {
			final Editable text = getText();
			int textLength = text.length();
			setSelection(0, textLength);
			setPrimaryClip(ClipData.newPlainText(null, text));
			((Editable) getText()).delete(0, textLength);
			setSelection(0);
			}

			private ClipData getPrimaryClip() {
			ClipboardManager clipboard = (ClipboardManager) getContext().getSystemService(
			Context.CLIPBOARD_SERVICE);
			return clipboard.getPrimaryClip();
			}

			private void pasteContent() {
			ClipData clip = getPrimaryClip();
			if (clip != null) {
			for (int i = 0; i < clip.getItemCount(); i++) {
			CharSequence paste = clip.getItemAt(i).coerceToText(getContext());
			if (canPaste(paste)) {
			((Editable) getText()).insert(getSelectionEnd(), paste);
			}
			}
			}
			}

			private boolean canPaste(CharSequence paste) {
			boolean canPaste = true;
			try {
			Float.parseFloat(paste.toString());
			} catch (NumberFormatException e) {
			Log.e(LOG_TAG, "Error turning string to integer. Ignoring paste.", e);
			canPaste = false;
			}
			return canPaste;
	}		}

	class NoTextSelectionMode implements ActionMode.Callback {		class NoTextSelectionMode implements ActionMode.Callback {