diff options
Diffstat (limited to 'core/java/android/widget/TextView.java')
| -rw-r--r-- | core/java/android/widget/TextView.java | 83 |
1 files changed, 64 insertions, 19 deletions
diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java index 27603f5..2d0a9cb 100644 --- a/core/java/android/widget/TextView.java +++ b/core/java/android/widget/TextView.java @@ -47,6 +47,7 @@ import android.os.AsyncTask; import android.os.Bundle; import android.os.Parcel; import android.os.Parcelable; +import android.os.ParcelableParcel; import android.os.SystemClock; import android.os.UserHandle; import android.provider.Settings; @@ -1612,7 +1613,8 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener * @hide */ public final UndoManager getUndoManager() { - return mEditor == null ? null : mEditor.mUndoManager; + // TODO: Consider supporting a global undo manager. + throw new UnsupportedOperationException("not implemented"); } /** @@ -1630,22 +1632,12 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener * @hide */ public final void setUndoManager(UndoManager undoManager, String tag) { - if (undoManager != null) { - createEditorIfNeeded(); - mEditor.mUndoManager = undoManager; - mEditor.mUndoOwner = undoManager.getOwner(tag, this); - mEditor.mUndoInputFilter = new Editor.UndoInputFilter(mEditor); - if (!(mText instanceof Editable)) { - setText(mText, BufferType.EDITABLE); - } - - setFilters((Editable) mText, mFilters); - } else if (mEditor != null) { - // XXX need to destroy all associated state. - mEditor.mUndoManager = null; - mEditor.mUndoOwner = null; - mEditor.mUndoInputFilter = null; - } + // TODO: Consider supporting a global undo manager. An implementation will need to: + // * createEditorIfNeeded() + // * Promote to BufferType.EDITABLE if needed. + // * Update the UndoManager and UndoOwner. + // Likewise it will need to be able to restore the default UndoManager. + throw new UnsupportedOperationException("not implemented"); } /** @@ -3899,6 +3891,9 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener ss.error = getError(); + if (mEditor != null) { + ss.editorState = mEditor.saveInstanceState(); + } return ss; } @@ -3968,6 +3963,11 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener } }); } + + if (ss.editorState != null) { + createEditorIfNeeded(); + mEditor.restoreInstanceState(ss.editorState); + } } /** @@ -8383,6 +8383,11 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener return onTextContextMenuItem(ID_SELECT_ALL); } break; + case KeyEvent.KEYCODE_Z: + if (canUndo()) { + return onTextContextMenuItem(ID_UNDO); + } + break; case KeyEvent.KEYCODE_X: if (canCut()) { return onTextContextMenuItem(ID_CUT); @@ -8402,11 +8407,15 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener } else if (event.hasModifiers(KeyEvent.META_CTRL_ON | KeyEvent.META_SHIFT_ON)) { // Handle Ctrl-Shift shortcuts. switch (keyCode) { + case KeyEvent.KEYCODE_Z: + if (canRedo()) { + return onTextContextMenuItem(ID_REDO); + } + break; case KeyEvent.KEYCODE_V: if (canPaste()) { return onTextContextMenuItem(ID_PASTE_AS_PLAIN_TEXT); } - break; } } return super.onKeyShortcut(keyCode, event); @@ -8784,6 +8793,8 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener } static final int ID_SELECT_ALL = android.R.id.selectAll; + static final int ID_UNDO = android.R.id.undo; + static final int ID_REDO = android.R.id.redo; static final int ID_CUT = android.R.id.cut; static final int ID_COPY = android.R.id.copy; static final int ID_PASTE = android.R.id.paste; @@ -8815,6 +8826,18 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener selectAllText(); return true; + case ID_UNDO: + if (mEditor != null) { + mEditor.undo(); + } + return true; // Returns true even if nothing was undone. + + case ID_REDO: + if (mEditor != null) { + mEditor.redo(); + } + return true; // Returns true even if nothing was undone. + case ID_PASTE: paste(min, max, true /* withFormatting */); return true; @@ -8948,7 +8971,17 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener * @hide */ protected void stopSelectionActionMode() { - mEditor.stopSelectionActionMode(); + if (mEditor != null) { + mEditor.stopSelectionActionMode(); + } + } + + boolean canUndo() { + return mEditor != null && mEditor.canUndo(); + } + + boolean canRedo() { + return mEditor != null && mEditor.canRedo(); } boolean canCut() { @@ -9325,6 +9358,7 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener CharSequence text; boolean frozenWithFocus; CharSequence error; + ParcelableParcel editorState; // Optional state from Editor. SavedState(Parcelable superState) { super(superState); @@ -9344,6 +9378,13 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener out.writeInt(1); TextUtils.writeToParcel(error, out, flags); } + + if (editorState == null) { + out.writeInt(0); + } else { + out.writeInt(1); + editorState.writeToParcel(out, flags); + } } @Override @@ -9379,6 +9420,10 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener if (in.readInt() != 0) { error = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(in); } + + if (in.readInt() != 0) { + editorState = ParcelableParcel.CREATOR.createFromParcel(in); + } } } |