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      1 /*
      2  * Copyright (C) 2011 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 
     17 package com.android.inputmethod.keyboard;
     18 
     19 import android.view.View;
     20 
     21 public interface MoreKeysPanel {
     22     public interface Controller {
     23         /**
     24          * Add the {@link MoreKeysPanel} to the target view.
     25          * @param panel
     26          */
     27         public void onShowMoreKeysPanel(final MoreKeysPanel panel);
     28 
     29         /**
     30          * Remove the current {@link MoreKeysPanel} from the target view.
     31          */
     32         public boolean onDismissMoreKeysPanel();
     33 
     34         /**
     35          * Instructs the parent to cancel the panel (e.g., when entering a different input mode).
     36          */
     37         public void onCancelMoreKeysPanel();
     38     }
     39 
     40     /**
     41      * Initializes the layout and event handling of this {@link MoreKeysPanel} and calls the
     42      * controller's onShowMoreKeysPanel to add the panel's container view.
     43      *
     44      * @param parentView the parent view of this {@link MoreKeysPanel}
     45      * @param controller the controller that can dismiss this {@link MoreKeysPanel}
     46      * @param pointX x coordinate of this {@link MoreKeysPanel}
     47      * @param pointY y coordinate of this {@link MoreKeysPanel}
     48      * @param listener the listener that will receive keyboard action from this
     49      * {@link MoreKeysPanel}.
     50      */
     51     // TODO: Currently the MoreKeysPanel is inside a container view that is added to the parent.
     52     // Consider the simpler approach of placing the MoreKeysPanel itself into the parent view.
     53     public void showMoreKeysPanel(View parentView, Controller controller, int pointX,
     54             int pointY, KeyboardActionListener listener);
     55 
     56     /**
     57      * Dismisses the more keys panel and calls the controller's onDismissMoreKeysPanel to remove
     58      * the panel's container view.
     59      */
     60     public boolean dismissMoreKeysPanel();
     61 
     62     /**
     63      * Process a move event on the more keys panel.
     64      *
     65      * @param x translated x coordinate of the touch point
     66      * @param y translated y coordinate of the touch point
     67      * @param pointerId pointer id touch point
     68      * @param eventTime timestamp of touch point
     69      */
     70     public void onMoveEvent(final int x, final int y, final int pointerId, final long eventTime);
     71 
     72     /**
     73      * Process a down event on the more keys panel.
     74      *
     75      * @param x translated x coordinate of the touch point
     76      * @param y translated y coordinate of the touch point
     77      * @param pointerId pointer id touch point
     78      * @param eventTime timestamp of touch point
     79      */
     80     public void onDownEvent(final int x, final int y, final int pointerId, final long eventTime);
     81 
     82     /**
     83      * Process an up event on the more keys panel.
     84      *
     85      * @param x translated x coordinate of the touch point
     86      * @param y translated y coordinate of the touch point
     87      * @param pointerId pointer id touch point
     88      * @param eventTime timestamp of touch point
     89      */
     90     public void onUpEvent(final int x, final int y, final int pointerId, final long eventTime);
     91 
     92     /**
     93      * Translate X-coordinate of touch event to the local X-coordinate of this
     94      * {@link MoreKeysPanel}.
     95      *
     96      * @param x the global X-coordinate
     97      * @return the local X-coordinate to this {@link MoreKeysPanel}
     98      */
     99     public int translateX(int x);
    100 
    101     /**
    102      * Translate Y-coordinate of touch event to the local Y-coordinate of this
    103      * {@link MoreKeysPanel}.
    104      *
    105      * @param y the global Y-coordinate
    106      * @return the local Y-coordinate to this {@link MoreKeysPanel}
    107      */
    108     public int translateY(int y);
    109 
    110     /**
    111      * Return the view containing the more keys panel.
    112      */
    113     public View getContainerView();
    114 
    115     /**
    116      * Return whether the panel is currently being shown.
    117      */
    118     public boolean isShowingInParent();
    119 }
    120