950 lines
38 KiB
Java
950 lines
38 KiB
Java
/*
|
|
* 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 android.webkit;
|
|
|
|
import com.android.internal.widget.EditableInputConnection;
|
|
|
|
import android.content.Context;
|
|
import android.graphics.Canvas;
|
|
import android.graphics.Color;
|
|
import android.graphics.ColorFilter;
|
|
import android.graphics.Paint;
|
|
import android.graphics.PixelFormat;
|
|
import android.graphics.Rect;
|
|
import android.graphics.drawable.Drawable;
|
|
import android.text.Editable;
|
|
import android.text.InputFilter;
|
|
import android.text.Layout;
|
|
import android.text.Selection;
|
|
import android.text.Spannable;
|
|
import android.text.TextPaint;
|
|
import android.text.TextUtils;
|
|
import android.text.method.MovementMethod;
|
|
import android.text.method.Touch;
|
|
import android.util.Log;
|
|
import android.view.Gravity;
|
|
import android.view.KeyCharacterMap;
|
|
import android.view.KeyEvent;
|
|
import android.view.MotionEvent;
|
|
import android.view.View;
|
|
import android.view.ViewConfiguration;
|
|
import android.view.ViewGroup;
|
|
import android.view.inputmethod.EditorInfo;
|
|
import android.view.inputmethod.InputMethodManager;
|
|
import android.view.inputmethod.InputConnection;
|
|
import android.widget.AbsoluteLayout.LayoutParams;
|
|
import android.widget.ArrayAdapter;
|
|
import android.widget.AutoCompleteTextView;
|
|
import android.widget.TextView;
|
|
|
|
import java.util.ArrayList;
|
|
|
|
/**
|
|
* WebTextView is a specialized version of EditText used by WebView
|
|
* to overlay html textfields (and textareas) to use our standard
|
|
* text editing.
|
|
*/
|
|
/* package */ class WebTextView extends AutoCompleteTextView {
|
|
|
|
static final String LOGTAG = "webtextview";
|
|
|
|
private WebView mWebView;
|
|
private boolean mSingle;
|
|
private int mWidthSpec;
|
|
private int mHeightSpec;
|
|
private int mNodePointer;
|
|
// FIXME: This is a hack for blocking unmatched key ups, in particular
|
|
// on the enter key. The method for blocking unmatched key ups prevents
|
|
// the shift key from working properly.
|
|
private boolean mGotEnterDown;
|
|
private int mMaxLength;
|
|
// Keep track of the text before the change so we know whether we actually
|
|
// need to send down the DOM events.
|
|
private String mPreChange;
|
|
private Drawable mBackground;
|
|
// Variables for keeping track of the touch down, to send to the WebView
|
|
// when a drag starts
|
|
private float mDragStartX;
|
|
private float mDragStartY;
|
|
private long mDragStartTime;
|
|
private boolean mDragSent;
|
|
// True if the most recent drag event has caused either the TextView to
|
|
// scroll or the web page to scroll. Gets reset after a touch down.
|
|
private boolean mScrolled;
|
|
// Whether or not a selection change was generated from webkit. If it was,
|
|
// we do not need to pass the selection back to webkit.
|
|
private boolean mFromWebKit;
|
|
// Whether or not a selection change was generated from the WebTextView
|
|
// gaining focus. If it is, we do not want to pass it to webkit. This
|
|
// selection comes from the MovementMethod, but we behave differently. If
|
|
// WebTextView gained focus from a touch, webkit will determine the
|
|
// selection.
|
|
private boolean mFromFocusChange;
|
|
// Whether or not a selection change was generated from setInputType. We
|
|
// do not want to pass this change to webkit.
|
|
private boolean mFromSetInputType;
|
|
private boolean mGotTouchDown;
|
|
// Keep track of whether a long press has happened. Only meaningful after
|
|
// an ACTION_DOWN MotionEvent
|
|
private boolean mHasPerformedLongClick;
|
|
private boolean mInSetTextAndKeepSelection;
|
|
// Array to store the final character added in onTextChanged, so that its
|
|
// KeyEvents may be determined.
|
|
private char[] mCharacter = new char[1];
|
|
// This is used to reset the length filter when on a textfield
|
|
// with no max length.
|
|
// FIXME: This can be replaced with TextView.NO_FILTERS if that
|
|
// is made public/protected.
|
|
private static final InputFilter[] NO_FILTERS = new InputFilter[0];
|
|
|
|
/**
|
|
* Create a new WebTextView.
|
|
* @param context The Context for this WebTextView.
|
|
* @param webView The WebView that created this.
|
|
*/
|
|
/* package */ WebTextView(Context context, WebView webView) {
|
|
super(context, null, com.android.internal.R.attr.webTextViewStyle);
|
|
mWebView = webView;
|
|
mMaxLength = -1;
|
|
}
|
|
|
|
@Override
|
|
public boolean dispatchKeyEvent(KeyEvent event) {
|
|
if (event.isSystem()) {
|
|
return super.dispatchKeyEvent(event);
|
|
}
|
|
// Treat ACTION_DOWN and ACTION MULTIPLE the same
|
|
boolean down = event.getAction() != KeyEvent.ACTION_UP;
|
|
int keyCode = event.getKeyCode();
|
|
|
|
boolean isArrowKey = false;
|
|
switch(keyCode) {
|
|
case KeyEvent.KEYCODE_DPAD_LEFT:
|
|
case KeyEvent.KEYCODE_DPAD_RIGHT:
|
|
case KeyEvent.KEYCODE_DPAD_UP:
|
|
case KeyEvent.KEYCODE_DPAD_DOWN:
|
|
if (!mWebView.nativeCursorMatchesFocus()) {
|
|
return down ? mWebView.onKeyDown(keyCode, event) : mWebView
|
|
.onKeyUp(keyCode, event);
|
|
|
|
}
|
|
isArrowKey = true;
|
|
break;
|
|
}
|
|
|
|
if (KeyEvent.KEYCODE_TAB == keyCode) {
|
|
if (down) {
|
|
onEditorAction(EditorInfo.IME_ACTION_NEXT);
|
|
}
|
|
return true;
|
|
}
|
|
Spannable text = (Spannable) getText();
|
|
int oldLength = text.length();
|
|
// Normally the delete key's dom events are sent via onTextChanged.
|
|
// However, if the length is zero, the text did not change, so we
|
|
// go ahead and pass the key down immediately.
|
|
if (KeyEvent.KEYCODE_DEL == keyCode && 0 == oldLength) {
|
|
sendDomEvent(event);
|
|
return true;
|
|
}
|
|
|
|
if ((mSingle && KeyEvent.KEYCODE_ENTER == keyCode)) {
|
|
if (isPopupShowing()) {
|
|
return super.dispatchKeyEvent(event);
|
|
}
|
|
if (!down) {
|
|
// Hide the keyboard, since the user has just submitted this
|
|
// form. The submission happens thanks to the two calls
|
|
// to sendDomEvent.
|
|
InputMethodManager.getInstance(mContext)
|
|
.hideSoftInputFromWindow(getWindowToken(), 0);
|
|
sendDomEvent(new KeyEvent(KeyEvent.ACTION_DOWN, keyCode));
|
|
sendDomEvent(event);
|
|
}
|
|
return super.dispatchKeyEvent(event);
|
|
} else if (KeyEvent.KEYCODE_DPAD_CENTER == keyCode) {
|
|
// Note that this handles center key and trackball.
|
|
if (isPopupShowing()) {
|
|
return super.dispatchKeyEvent(event);
|
|
}
|
|
if (!mWebView.nativeCursorMatchesFocus()) {
|
|
return down ? mWebView.onKeyDown(keyCode, event) : mWebView
|
|
.onKeyUp(keyCode, event);
|
|
}
|
|
// Center key should be passed to a potential onClick
|
|
if (!down) {
|
|
mWebView.centerKeyPressOnTextField();
|
|
}
|
|
// Pass to super to handle longpress.
|
|
return super.dispatchKeyEvent(event);
|
|
}
|
|
|
|
// Ensure there is a layout so arrow keys are handled properly.
|
|
if (getLayout() == null) {
|
|
measure(mWidthSpec, mHeightSpec);
|
|
}
|
|
int oldStart = Selection.getSelectionStart(text);
|
|
int oldEnd = Selection.getSelectionEnd(text);
|
|
|
|
boolean maxedOut = mMaxLength != -1 && oldLength == mMaxLength;
|
|
// If we are at max length, and there is a selection rather than a
|
|
// cursor, we need to store the text to compare later, since the key
|
|
// may have changed the string.
|
|
String oldText;
|
|
if (maxedOut && oldEnd != oldStart) {
|
|
oldText = text.toString();
|
|
} else {
|
|
oldText = "";
|
|
}
|
|
if (super.dispatchKeyEvent(event)) {
|
|
// If the WebTextView handled the key it was either an alphanumeric
|
|
// key, a delete, or a movement within the text. All of those are
|
|
// ok to pass to javascript.
|
|
|
|
// UNLESS there is a max length determined by the html. In that
|
|
// case, if the string was already at the max length, an
|
|
// alphanumeric key will be erased by the LengthFilter,
|
|
// so do not pass down to javascript, and instead
|
|
// return true. If it is an arrow key or a delete key, we can go
|
|
// ahead and pass it down.
|
|
if (KeyEvent.KEYCODE_ENTER == keyCode) {
|
|
// For multi-line text boxes, newlines will
|
|
// trigger onTextChanged for key down (which will send both
|
|
// key up and key down) but not key up.
|
|
mGotEnterDown = true;
|
|
}
|
|
if (maxedOut && !isArrowKey && keyCode != KeyEvent.KEYCODE_DEL) {
|
|
if (oldEnd == oldStart) {
|
|
// Return true so the key gets dropped.
|
|
return true;
|
|
} else if (!oldText.equals(getText().toString())) {
|
|
// FIXME: This makes the text work properly, but it
|
|
// does not pass down the key event, so it may not
|
|
// work for a textfield that has the type of
|
|
// behavior of GoogleSuggest. That said, it is
|
|
// unlikely that a site would combine the two in
|
|
// one textfield.
|
|
Spannable span = (Spannable) getText();
|
|
int newStart = Selection.getSelectionStart(span);
|
|
int newEnd = Selection.getSelectionEnd(span);
|
|
mWebView.replaceTextfieldText(0, oldLength, span.toString(),
|
|
newStart, newEnd);
|
|
return true;
|
|
}
|
|
}
|
|
/* FIXME:
|
|
* In theory, we would like to send the events for the arrow keys.
|
|
* However, the TextView can arbitrarily change the selection (i.e.
|
|
* long press followed by using the trackball). Therefore, we keep
|
|
* in sync with the TextView via onSelectionChanged. If we also
|
|
* send the DOM event, we lose the correct selection.
|
|
if (isArrowKey) {
|
|
// Arrow key does not change the text, but we still want to send
|
|
// the DOM events.
|
|
sendDomEvent(event);
|
|
}
|
|
*/
|
|
return true;
|
|
}
|
|
// Ignore the key up event for newlines. This prevents
|
|
// multiple newlines in the native textarea.
|
|
if (mGotEnterDown && !down) {
|
|
return true;
|
|
}
|
|
// if it is a navigation key, pass it to WebView
|
|
if (isArrowKey) {
|
|
// WebView check the trackballtime in onKeyDown to avoid calling
|
|
// native from both trackball and key handling. As this is called
|
|
// from WebTextView, we always want WebView to check with native.
|
|
// Reset trackballtime to ensure it.
|
|
mWebView.resetTrackballTime();
|
|
return down ? mWebView.onKeyDown(keyCode, event) : mWebView
|
|
.onKeyUp(keyCode, event);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Determine whether this WebTextView currently represents the node
|
|
* represented by ptr.
|
|
* @param ptr Pointer to a node to compare to.
|
|
* @return boolean Whether this WebTextView already represents the node
|
|
* pointed to by ptr.
|
|
*/
|
|
/* package */ boolean isSameTextField(int ptr) {
|
|
return ptr == mNodePointer;
|
|
}
|
|
|
|
/**
|
|
* Ensure that the underlying textfield is lined up with the WebTextView.
|
|
*/
|
|
private void lineUpScroll() {
|
|
Layout layout = getLayout();
|
|
if (mWebView != null && layout != null) {
|
|
float maxScrollX = Touch.getMaxScrollX(this, layout, mScrollY);
|
|
if (DebugFlags.WEB_TEXT_VIEW) {
|
|
Log.v(LOGTAG, "onTouchEvent x=" + mScrollX + " y="
|
|
+ mScrollY + " maxX=" + maxScrollX);
|
|
}
|
|
mWebView.scrollFocusedTextInput(maxScrollX > 0 ?
|
|
mScrollX / maxScrollX : 0, mScrollY);
|
|
}
|
|
}
|
|
|
|
@Override public InputConnection onCreateInputConnection(
|
|
EditorInfo outAttrs) {
|
|
InputConnection connection = super.onCreateInputConnection(outAttrs);
|
|
if (mWebView != null) {
|
|
// Use the name of the textfield + the url. Use backslash as an
|
|
// arbitrary separator.
|
|
outAttrs.fieldName = mWebView.nativeFocusCandidateName() + "\\"
|
|
+ mWebView.getUrl();
|
|
}
|
|
return connection;
|
|
}
|
|
|
|
@Override
|
|
protected void onDraw(Canvas canvas) {
|
|
// onDraw should only be called for password fields. If WebTextView is
|
|
// still drawing, but is no longer corresponding to a password field,
|
|
// remove it.
|
|
if (mWebView == null || !mWebView.nativeFocusCandidateIsPassword()
|
|
|| !isSameTextField(mWebView.nativeFocusCandidatePointer())) {
|
|
// Although calling remove() would seem to make more sense here,
|
|
// changing it to not be a password field will make it not draw.
|
|
// Other code will make sure that it is removed completely, but this
|
|
// way the user will not see it.
|
|
setInPassword(false);
|
|
} else {
|
|
super.onDraw(canvas);
|
|
}
|
|
}
|
|
|
|
public void onDrawSubstitute() {
|
|
updateCursorControllerPositions();
|
|
}
|
|
|
|
@Override
|
|
public void onEditorAction(int actionCode) {
|
|
switch (actionCode) {
|
|
case EditorInfo.IME_ACTION_NEXT:
|
|
if (mWebView.nativeMoveCursorToNextTextInput()) {
|
|
// Since the cursor will no longer be in the same place as the
|
|
// focus, set the focus controller back to inactive
|
|
mWebView.setFocusControllerInactive();
|
|
// Preemptively rebuild the WebTextView, so that the action will
|
|
// be set properly.
|
|
mWebView.rebuildWebTextView();
|
|
setDefaultSelection();
|
|
mWebView.invalidate();
|
|
}
|
|
break;
|
|
case EditorInfo.IME_ACTION_DONE:
|
|
super.onEditorAction(actionCode);
|
|
break;
|
|
case EditorInfo.IME_ACTION_GO:
|
|
case EditorInfo.IME_ACTION_SEARCH:
|
|
// Send an enter and hide the soft keyboard
|
|
InputMethodManager.getInstance(mContext)
|
|
.hideSoftInputFromWindow(getWindowToken(), 0);
|
|
sendDomEvent(new KeyEvent(KeyEvent.ACTION_DOWN,
|
|
KeyEvent.KEYCODE_ENTER));
|
|
sendDomEvent(new KeyEvent(KeyEvent.ACTION_UP,
|
|
KeyEvent.KEYCODE_ENTER));
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void onFocusChanged(boolean focused, int direction,
|
|
Rect previouslyFocusedRect) {
|
|
mFromFocusChange = true;
|
|
super.onFocusChanged(focused, direction, previouslyFocusedRect);
|
|
mFromFocusChange = false;
|
|
}
|
|
|
|
@Override
|
|
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
|
|
super.onScrollChanged(l, t, oldl, oldt);
|
|
lineUpScroll();
|
|
}
|
|
|
|
@Override
|
|
protected void onSelectionChanged(int selStart, int selEnd) {
|
|
if (mInSetTextAndKeepSelection) return;
|
|
// This code is copied from TextView.onDraw(). That code does not get
|
|
// executed, however, because the WebTextView does not draw, allowing
|
|
// webkit's drawing to show through.
|
|
InputMethodManager imm = InputMethodManager.peekInstance();
|
|
if (imm != null && imm.isActive(this)) {
|
|
Spannable sp = (Spannable) getText();
|
|
int candStart = EditableInputConnection.getComposingSpanStart(sp);
|
|
int candEnd = EditableInputConnection.getComposingSpanEnd(sp);
|
|
imm.updateSelection(this, selStart, selEnd, candStart, candEnd);
|
|
}
|
|
if (!mFromWebKit && !mFromFocusChange && !mFromSetInputType
|
|
&& mWebView != null) {
|
|
if (DebugFlags.WEB_TEXT_VIEW) {
|
|
Log.v(LOGTAG, "onSelectionChanged selStart=" + selStart
|
|
+ " selEnd=" + selEnd);
|
|
}
|
|
mWebView.setSelection(selStart, selEnd);
|
|
lineUpScroll();
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void onTextChanged(CharSequence s,int start,int before,int count){
|
|
super.onTextChanged(s, start, before, count);
|
|
String postChange = s.toString();
|
|
// Prevent calls to setText from invoking onTextChanged (since this will
|
|
// mean we are on a different textfield). Also prevent the change when
|
|
// going from a textfield with a string of text to one with a smaller
|
|
// limit on text length from registering the onTextChanged event.
|
|
if (mPreChange == null || mPreChange.equals(postChange) ||
|
|
(mMaxLength > -1 && mPreChange.length() > mMaxLength &&
|
|
mPreChange.substring(0, mMaxLength).equals(postChange))) {
|
|
return;
|
|
}
|
|
mPreChange = postChange;
|
|
if (0 == count) {
|
|
if (before > 0) {
|
|
// This was simply a delete or a cut, so just delete the
|
|
// selection.
|
|
mWebView.deleteSelection(start, start + before);
|
|
// For this and all changes to the text, update our cache
|
|
updateCachedTextfield();
|
|
}
|
|
// before should never be negative, so whether it was a cut
|
|
// (handled above), or before is 0, in which case nothing has
|
|
// changed, we should return.
|
|
return;
|
|
}
|
|
// Find the last character being replaced. If it can be represented by
|
|
// events, we will pass them to native (after replacing the beginning
|
|
// of the changed text), so we can see javascript events.
|
|
// Otherwise, replace the text being changed (including the last
|
|
// character) in the textfield.
|
|
TextUtils.getChars(s, start + count - 1, start + count, mCharacter, 0);
|
|
KeyCharacterMap kmap =
|
|
KeyCharacterMap.load(KeyCharacterMap.BUILT_IN_KEYBOARD);
|
|
KeyEvent[] events = kmap.getEvents(mCharacter);
|
|
boolean cannotUseKeyEvents = null == events;
|
|
int charactersFromKeyEvents = cannotUseKeyEvents ? 0 : 1;
|
|
if (count > 1 || cannotUseKeyEvents) {
|
|
String replace = s.subSequence(start,
|
|
start + count - charactersFromKeyEvents).toString();
|
|
mWebView.replaceTextfieldText(start, start + before, replace,
|
|
start + count - charactersFromKeyEvents,
|
|
start + count - charactersFromKeyEvents);
|
|
} else {
|
|
// This corrects the selection which may have been affected by the
|
|
// trackball or auto-correct.
|
|
if (DebugFlags.WEB_TEXT_VIEW) {
|
|
Log.v(LOGTAG, "onTextChanged start=" + start
|
|
+ " start + before=" + (start + before));
|
|
}
|
|
if (!mInSetTextAndKeepSelection) {
|
|
mWebView.setSelection(start, start + before);
|
|
}
|
|
}
|
|
if (!cannotUseKeyEvents) {
|
|
int length = events.length;
|
|
for (int i = 0; i < length; i++) {
|
|
// We never send modifier keys to native code so don't send them
|
|
// here either.
|
|
if (!KeyEvent.isModifierKey(events[i].getKeyCode())) {
|
|
sendDomEvent(events[i]);
|
|
}
|
|
}
|
|
}
|
|
updateCachedTextfield();
|
|
}
|
|
|
|
@Override
|
|
public boolean onTouchEvent(MotionEvent event) {
|
|
switch (event.getAction()) {
|
|
case MotionEvent.ACTION_DOWN:
|
|
super.onTouchEvent(event);
|
|
// This event may be the start of a drag, so store it to pass to the
|
|
// WebView if it is.
|
|
mDragStartX = event.getX();
|
|
mDragStartY = event.getY();
|
|
mDragStartTime = event.getEventTime();
|
|
mDragSent = false;
|
|
mScrolled = false;
|
|
mGotTouchDown = true;
|
|
mHasPerformedLongClick = false;
|
|
break;
|
|
case MotionEvent.ACTION_MOVE:
|
|
if (mHasPerformedLongClick) {
|
|
mGotTouchDown = false;
|
|
return false;
|
|
}
|
|
int slop = ViewConfiguration.get(mContext).getScaledTouchSlop();
|
|
Spannable buffer = getText();
|
|
int initialScrollX = Touch.getInitialScrollX(this, buffer);
|
|
int initialScrollY = Touch.getInitialScrollY(this, buffer);
|
|
super.onTouchEvent(event);
|
|
int dx = Math.abs(mScrollX - initialScrollX);
|
|
int dy = Math.abs(mScrollY - initialScrollY);
|
|
// Use a smaller slop when checking to see if we've moved far enough
|
|
// to scroll the text, because experimentally, slop has shown to be
|
|
// to big for the case of a small textfield.
|
|
int smallerSlop = slop/2;
|
|
if (dx > smallerSlop || dy > smallerSlop) {
|
|
// Scrolling is handled in onScrollChanged.
|
|
mScrolled = true;
|
|
cancelLongPress();
|
|
return true;
|
|
}
|
|
if (Math.abs((int) event.getX() - mDragStartX) < slop
|
|
&& Math.abs((int) event.getY() - mDragStartY) < slop) {
|
|
// If the user has not scrolled further than slop, we should not
|
|
// send the drag. Instead, do nothing, and when the user lifts
|
|
// their finger, we will change the selection.
|
|
return true;
|
|
}
|
|
if (mWebView != null) {
|
|
// Only want to set the initial state once.
|
|
if (!mDragSent) {
|
|
mWebView.initiateTextFieldDrag(mDragStartX, mDragStartY,
|
|
mDragStartTime);
|
|
mDragSent = true;
|
|
}
|
|
boolean scrolled = mWebView.textFieldDrag(event);
|
|
if (scrolled) {
|
|
mScrolled = true;
|
|
cancelLongPress();
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
case MotionEvent.ACTION_UP:
|
|
case MotionEvent.ACTION_CANCEL:
|
|
super.onTouchEvent(event);
|
|
if (mHasPerformedLongClick) {
|
|
mGotTouchDown = false;
|
|
return false;
|
|
}
|
|
if (!mScrolled) {
|
|
// If the page scrolled, or the TextView scrolled, we do not
|
|
// want to change the selection
|
|
cancelLongPress();
|
|
if (mGotTouchDown && mWebView != null) {
|
|
mWebView.touchUpOnTextField(event);
|
|
}
|
|
}
|
|
// Necessary for the WebView to reset its state
|
|
if (mWebView != null && mDragSent) {
|
|
mWebView.onTouchEvent(event);
|
|
}
|
|
mGotTouchDown = false;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
@Override
|
|
public boolean onTrackballEvent(MotionEvent event) {
|
|
if (isPopupShowing()) {
|
|
return super.onTrackballEvent(event);
|
|
}
|
|
if (event.getAction() != MotionEvent.ACTION_MOVE) {
|
|
return false;
|
|
}
|
|
// If the Cursor is not on the text input, webview should handle the
|
|
// trackball
|
|
if (!mWebView.nativeCursorMatchesFocus()) {
|
|
return mWebView.onTrackballEvent(event);
|
|
}
|
|
Spannable text = (Spannable) getText();
|
|
MovementMethod move = getMovementMethod();
|
|
if (move != null && getLayout() != null &&
|
|
move.onTrackballEvent(this, text, event)) {
|
|
// Selection is changed in onSelectionChanged
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
@Override
|
|
public boolean performLongClick() {
|
|
mHasPerformedLongClick = true;
|
|
return super.performLongClick();
|
|
}
|
|
|
|
/**
|
|
* Remove this WebTextView from its host WebView, and return
|
|
* focus to the host.
|
|
*/
|
|
/* package */ void remove() {
|
|
// hide the soft keyboard when the edit text is out of focus
|
|
InputMethodManager.getInstance(mContext).hideSoftInputFromWindow(
|
|
getWindowToken(), 0);
|
|
mWebView.removeView(this);
|
|
mWebView.requestFocus();
|
|
}
|
|
|
|
/* package */ void bringIntoView() {
|
|
if (getLayout() != null) {
|
|
bringPointIntoView(Selection.getSelectionEnd(getText()));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send the DOM events for the specified event.
|
|
* @param event KeyEvent to be translated into a DOM event.
|
|
*/
|
|
private void sendDomEvent(KeyEvent event) {
|
|
mWebView.passToJavaScript(getText().toString(), event);
|
|
}
|
|
|
|
/**
|
|
* Always use this instead of setAdapter, as this has features specific to
|
|
* the WebTextView.
|
|
*/
|
|
public void setAdapterCustom(AutoCompleteAdapter adapter) {
|
|
if (adapter != null) {
|
|
setInputType(getInputType()
|
|
| EditorInfo.TYPE_TEXT_FLAG_AUTO_COMPLETE);
|
|
adapter.setTextView(this);
|
|
}
|
|
super.setAdapter(adapter);
|
|
}
|
|
|
|
/**
|
|
* This is a special version of ArrayAdapter which changes its text size
|
|
* to match the text size of its host TextView.
|
|
*/
|
|
public static class AutoCompleteAdapter extends ArrayAdapter<String> {
|
|
private TextView mTextView;
|
|
|
|
public AutoCompleteAdapter(Context context, ArrayList<String> entries) {
|
|
super(context, com.android.internal.R.layout
|
|
.search_dropdown_item_1line, entries);
|
|
}
|
|
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
public View getView(int position, View convertView, ViewGroup parent) {
|
|
TextView tv =
|
|
(TextView) super.getView(position, convertView, parent);
|
|
if (tv != null && mTextView != null) {
|
|
tv.setTextSize(mTextView.getTextSize());
|
|
}
|
|
return tv;
|
|
}
|
|
|
|
/**
|
|
* Set the TextView so we can match its text size.
|
|
*/
|
|
private void setTextView(TextView tv) {
|
|
mTextView = tv;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Sets the selection when the user clicks on a textfield or textarea with
|
|
* the trackball or center key, or starts typing into it without clicking on
|
|
* it.
|
|
*/
|
|
/* package */ void setDefaultSelection() {
|
|
Spannable text = (Spannable) getText();
|
|
int selection = mSingle ? text.length() : 0;
|
|
if (Selection.getSelectionStart(text) == selection
|
|
&& Selection.getSelectionEnd(text) == selection) {
|
|
// The selection of the UI copy is set correctly, but the
|
|
// WebTextView still needs to inform the webkit thread to set the
|
|
// selection. Normally that is done in onSelectionChanged, but
|
|
// onSelectionChanged will not be called because the UI copy is not
|
|
// changing. (This can happen when the WebTextView takes focus.
|
|
// That onSelectionChanged was blocked because the selection set
|
|
// when focusing is not necessarily the desirable selection for
|
|
// WebTextView.)
|
|
if (mWebView != null) {
|
|
mWebView.setSelection(selection, selection);
|
|
}
|
|
} else {
|
|
Selection.setSelection(text, selection, selection);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Determine whether to use the system-wide password disguising method,
|
|
* or to use none.
|
|
* @param inPassword True if the textfield is a password field.
|
|
*/
|
|
/* package */ void setInPassword(boolean inPassword) {
|
|
if (inPassword) {
|
|
setInputType(EditorInfo.TYPE_CLASS_TEXT | EditorInfo.
|
|
TYPE_TEXT_VARIATION_PASSWORD);
|
|
createBackground();
|
|
}
|
|
// For password fields, draw the WebTextView. For others, just show
|
|
// webkit's drawing.
|
|
setWillNotDraw(!inPassword);
|
|
setBackgroundDrawable(inPassword ? mBackground : null);
|
|
}
|
|
|
|
/**
|
|
* Private class used for the background of a password textfield.
|
|
*/
|
|
private static class OutlineDrawable extends Drawable {
|
|
public void draw(Canvas canvas) {
|
|
Rect bounds = getBounds();
|
|
Paint paint = new Paint();
|
|
paint.setAntiAlias(true);
|
|
// Draw the background.
|
|
paint.setColor(Color.WHITE);
|
|
canvas.drawRect(bounds, paint);
|
|
// Draw the outline.
|
|
paint.setStyle(Paint.Style.STROKE);
|
|
paint.setColor(Color.BLACK);
|
|
canvas.drawRect(bounds, paint);
|
|
}
|
|
// Always want it to be opaque.
|
|
public int getOpacity() {
|
|
return PixelFormat.OPAQUE;
|
|
}
|
|
// These are needed because they are abstract in Drawable.
|
|
public void setAlpha(int alpha) { }
|
|
public void setColorFilter(ColorFilter cf) { }
|
|
}
|
|
|
|
/**
|
|
* Create a background for the WebTextView and set up the paint for drawing
|
|
* the text. This way, we can see the password transformation of the
|
|
* system, which (optionally) shows the actual text before changing to dots.
|
|
* The background is necessary to hide the webkit-drawn text beneath.
|
|
*/
|
|
private void createBackground() {
|
|
if (mBackground != null) {
|
|
return;
|
|
}
|
|
mBackground = new OutlineDrawable();
|
|
|
|
setGravity(Gravity.CENTER_VERTICAL);
|
|
// Turn on subpixel text, and turn off kerning, so it better matches
|
|
// the text in webkit.
|
|
TextPaint paint = getPaint();
|
|
int flags = paint.getFlags() | Paint.SUBPIXEL_TEXT_FLAG |
|
|
Paint.ANTI_ALIAS_FLAG & ~Paint.DEV_KERN_TEXT_FLAG;
|
|
paint.setFlags(flags);
|
|
// Set the text color to black, regardless of the theme. This ensures
|
|
// that other applications that use embedded WebViews will properly
|
|
// display the text in password textfields.
|
|
setTextColor(Color.BLACK);
|
|
}
|
|
|
|
@Override
|
|
public void setInputType(int type) {
|
|
mFromSetInputType = true;
|
|
super.setInputType(type);
|
|
mFromSetInputType = false;
|
|
}
|
|
|
|
private void setMaxLength(int maxLength) {
|
|
mMaxLength = maxLength;
|
|
if (-1 == maxLength) {
|
|
setFilters(NO_FILTERS);
|
|
} else {
|
|
setFilters(new InputFilter[] {
|
|
new InputFilter.LengthFilter(maxLength) });
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set the pointer for this node so it can be determined which node this
|
|
* WebTextView represents.
|
|
* @param ptr Integer representing the pointer to the node which this
|
|
* WebTextView represents.
|
|
*/
|
|
/* package */ void setNodePointer(int ptr) {
|
|
mNodePointer = ptr;
|
|
}
|
|
|
|
/**
|
|
* Determine the position and size of WebTextView, and add it to the
|
|
* WebView's view heirarchy. All parameters are presumed to be in
|
|
* view coordinates. Also requests Focus and sets the cursor to not
|
|
* request to be in view.
|
|
* @param x x-position of the textfield.
|
|
* @param y y-position of the textfield.
|
|
* @param width width of the textfield.
|
|
* @param height height of the textfield.
|
|
*/
|
|
/* package */ void setRect(int x, int y, int width, int height) {
|
|
LayoutParams lp = (LayoutParams) getLayoutParams();
|
|
if (null == lp) {
|
|
lp = new LayoutParams(width, height, x, y);
|
|
} else {
|
|
lp.x = x;
|
|
lp.y = y;
|
|
lp.width = width;
|
|
lp.height = height;
|
|
}
|
|
if (getParent() == null) {
|
|
mWebView.addView(this, lp);
|
|
} else {
|
|
setLayoutParams(lp);
|
|
}
|
|
// Set up a measure spec so a layout can always be recreated.
|
|
mWidthSpec = MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY);
|
|
mHeightSpec = MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY);
|
|
}
|
|
|
|
/**
|
|
* Set the selection, and disable our onSelectionChanged action.
|
|
*/
|
|
/* package */ void setSelectionFromWebKit(int start, int end) {
|
|
if (start < 0 || end < 0) return;
|
|
Spannable text = (Spannable) getText();
|
|
int length = text.length();
|
|
if (start > length || end > length) return;
|
|
mFromWebKit = true;
|
|
Selection.setSelection(text, start, end);
|
|
mFromWebKit = false;
|
|
}
|
|
|
|
/**
|
|
* Set the text to the new string, but use the old selection, making sure
|
|
* to keep it within the new string.
|
|
* @param text The new text to place in the textfield.
|
|
*/
|
|
/* package */ void setTextAndKeepSelection(String text) {
|
|
mPreChange = text.toString();
|
|
Editable edit = (Editable) getText();
|
|
int selStart = Selection.getSelectionStart(edit);
|
|
int selEnd = Selection.getSelectionEnd(edit);
|
|
mInSetTextAndKeepSelection = true;
|
|
edit.replace(0, edit.length(), text);
|
|
int newLength = edit.length();
|
|
if (selStart > newLength) selStart = newLength;
|
|
if (selEnd > newLength) selEnd = newLength;
|
|
Selection.setSelection(edit, selStart, selEnd);
|
|
mInSetTextAndKeepSelection = false;
|
|
updateCachedTextfield();
|
|
}
|
|
|
|
/**
|
|
* Called by WebView.rebuildWebTextView(). Based on the type of the <input>
|
|
* element, set up the WebTextView, its InputType, and IME Options properly.
|
|
* @param type int corresponding to enum "type" defined in WebView.cpp.
|
|
* Does not correspond to HTMLInputElement::InputType so this
|
|
* is unaffected if that changes, and also because that has no
|
|
* type corresponding to textarea (which is its own tag).
|
|
*/
|
|
/* package */ void setType(int type) {
|
|
if (mWebView == null) return;
|
|
boolean single = true;
|
|
boolean inPassword = false;
|
|
int maxLength = -1;
|
|
int inputType = EditorInfo.TYPE_CLASS_TEXT;
|
|
if (mWebView.nativeFocusCandidateHasNextTextfield()) {
|
|
inputType |= EditorInfo.TYPE_TEXT_VARIATION_WEB_EDIT_TEXT;
|
|
}
|
|
int imeOptions = EditorInfo.IME_FLAG_NO_EXTRACT_UI
|
|
| EditorInfo.IME_FLAG_NO_FULLSCREEN;
|
|
switch (type) {
|
|
case 0: // NORMAL_TEXT_FIELD
|
|
imeOptions |= EditorInfo.IME_ACTION_GO;
|
|
break;
|
|
case 1: // TEXT_AREA
|
|
single = false;
|
|
inputType = EditorInfo.TYPE_TEXT_FLAG_MULTI_LINE
|
|
| EditorInfo.TYPE_TEXT_FLAG_CAP_SENTENCES
|
|
| EditorInfo.TYPE_CLASS_TEXT
|
|
| EditorInfo.TYPE_TEXT_FLAG_AUTO_CORRECT;
|
|
imeOptions |= EditorInfo.IME_ACTION_NONE;
|
|
break;
|
|
case 2: // PASSWORD
|
|
inPassword = true;
|
|
imeOptions |= EditorInfo.IME_ACTION_GO;
|
|
break;
|
|
case 3: // SEARCH
|
|
imeOptions |= EditorInfo.IME_ACTION_SEARCH;
|
|
break;
|
|
case 4: // EMAIL
|
|
// TYPE_TEXT_VARIATION_WEB_EDIT_TEXT prevents EMAIL_ADDRESS
|
|
// from working, so exclude it for now.
|
|
imeOptions |= EditorInfo.IME_ACTION_GO;
|
|
break;
|
|
case 5: // NUMBER
|
|
inputType |= EditorInfo.TYPE_CLASS_NUMBER;
|
|
// Number and telephone do not have both a Tab key and an
|
|
// action, so set the action to NEXT
|
|
imeOptions |= EditorInfo.IME_ACTION_NEXT;
|
|
break;
|
|
case 6: // TELEPHONE
|
|
inputType |= EditorInfo.TYPE_CLASS_PHONE;
|
|
imeOptions |= EditorInfo.IME_ACTION_NEXT;
|
|
break;
|
|
case 7: // URL
|
|
// TYPE_TEXT_VARIATION_URI prevents Tab key from showing, so
|
|
// exclude it for now.
|
|
imeOptions |= EditorInfo.IME_ACTION_GO;
|
|
break;
|
|
default:
|
|
imeOptions |= EditorInfo.IME_ACTION_GO;
|
|
break;
|
|
}
|
|
setHint(null);
|
|
if (single) {
|
|
mWebView.requestLabel(mWebView.nativeFocusCandidateFramePointer(),
|
|
mNodePointer);
|
|
maxLength = mWebView.nativeFocusCandidateMaxLength();
|
|
if (type != 2 /* PASSWORD */) {
|
|
String name = mWebView.nativeFocusCandidateName();
|
|
if (name != null && name.length() > 0) {
|
|
mWebView.requestFormData(name, mNodePointer);
|
|
}
|
|
}
|
|
}
|
|
mSingle = single;
|
|
setMaxLength(maxLength);
|
|
setHorizontallyScrolling(single);
|
|
setInputType(inputType);
|
|
setImeOptions(imeOptions);
|
|
setInPassword(inPassword);
|
|
AutoCompleteAdapter adapter = null;
|
|
setAdapterCustom(adapter);
|
|
}
|
|
|
|
/**
|
|
* Update the cache to reflect the current text.
|
|
*/
|
|
/* package */ void updateCachedTextfield() {
|
|
mWebView.updateCachedTextfield(getText().toString());
|
|
}
|
|
|
|
@Override
|
|
public boolean requestRectangleOnScreen(Rect rectangle) {
|
|
// don't scroll while in zoom animation. When it is done, we will adjust
|
|
// the WebTextView if it is in editing mode.
|
|
if (!mWebView.inAnimateZoom()) {
|
|
return super.requestRectangleOnScreen(rectangle);
|
|
}
|
|
return false;
|
|
}
|
|
}
|