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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 package org.chromium.chrome.browser.toolbar;
      6 
      7 import org.chromium.base.CalledByNative;
      8 import org.chromium.content_public.browser.WebContents;
      9 
     10 /**
     11  * Provides a way of accessing toolbar data and state.
     12  */
     13 public class ToolbarModel {
     14 
     15     /**
     16      * Delegate for providing additional information to the model.
     17      */
     18     public interface ToolbarModelDelegate {
     19         /**
     20          * @return The currently active WebContents being used by the Toolbar.
     21          */
     22         @CalledByNative("ToolbarModelDelegate")
     23         WebContents getActiveWebContents();
     24     }
     25 
     26     private long mNativeToolbarModelAndroid;
     27 
     28     /**
     29      * Initialize the native counterpart of this model.
     30      * @param delegate The delegate that will be used by the model.
     31      */
     32     public void initialize(ToolbarModelDelegate delegate) {
     33         mNativeToolbarModelAndroid = nativeInit(delegate);
     34     }
     35 
     36     /**
     37      * Destroys the native ToolbarModel.
     38      */
     39     public void destroy() {
     40         if (mNativeToolbarModelAndroid == 0) return;
     41         nativeDestroy(mNativeToolbarModelAndroid);
     42         mNativeToolbarModelAndroid = 0;
     43     }
     44 
     45     /** @return The formatted text (URL or search terms) for display. */
     46     public String getText() {
     47         if (mNativeToolbarModelAndroid == 0) return null;
     48         return nativeGetText(mNativeToolbarModelAndroid);
     49     }
     50 
     51     /** @return The parameter in the url that triggers query extraction. */
     52     public String getQueryExtractionParam() {
     53         if (mNativeToolbarModelAndroid == 0) return null;
     54         return nativeGetQueryExtractionParam(mNativeToolbarModelAndroid);
     55     }
     56 
     57     /** @return The chip text from the search URL. */
     58     public String getCorpusChipText() {
     59         if (mNativeToolbarModelAndroid == 0) return null;
     60         return nativeGetCorpusChipText(mNativeToolbarModelAndroid);
     61     }
     62 
     63     private native long nativeInit(ToolbarModelDelegate delegate);
     64     private native void nativeDestroy(long nativeToolbarModelAndroid);
     65     private native String nativeGetText(long nativeToolbarModelAndroid);
     66     private native String nativeGetQueryExtractionParam(long nativeToolbarModelAndroid);
     67     private native String nativeGetCorpusChipText(long nativeToolbarModelAndroid);
     68 }
     69