Restructuring NavigationController functionalities from ContentViewCore to NavigationController

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.content.browser;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.app.SearchManager;
 import android.content.ContentResolver;
@@ skipping 858 matching lines @@
     }
 
     /**
      * Load url without fixing up the url string. Consumers of ContentView are responsible for
      * ensuring the URL passed in is properly formatted (i.e. the scheme has been added if left
      * off during user input).
      *
      * @param params Parameters for this load.
      */
     public void loadUrl(LoadUrlParams params) {
-        if (mNativeContentViewCore == 0) return;
-
-        nativeLoadUrl(mNativeContentViewCore,
-                params.mUrl,
-                params.mLoadUrlType,
-                params.mTransitionType,
-                params.getReferrer() != null ? params.getReferrer().getUrl() : null,
-                params.getReferrer() != null ? params.getReferrer().getPolicy() : 0,
-                params.mUaOverrideOption,
-                params.getExtraHeadersString(),
-                params.mPostData,
-                params.mBaseUrlForDataUrl,
-                params.mVirtualUrlForDataUrl,
-                params.mCanLoadLocalResources,
-                params.mIsRendererInitiated);
+        assert mWebContents !=  null;
+        mWebContents.getNavigationController().loadUrl(params);
     }
 
     /**
      * Stops loading the current web contents.
      */
     public void stopLoading() {
         if (mWebContents != null) mWebContents.stop();
     }
 
     /**
@@ skipping 190 matching lines @@
      */
     public void continuePendingReload() {
         if (mWebContents != null) mWebContents.getNavigationController().continuePendingReload();
     }
 
     /**
      * Clears the ContentViewCore's page history in both the backwards and
      * forwards directions.
      */
     public void clearHistory() {
-        if (mNativeContentViewCore != 0) nativeClearHistory(mNativeContentViewCore);
+        assert mWebContents != null;
+        mWebContents.getNavigationController().clearHistory();
     }
 
     /**
      * @return The selected text (empty if no text selected).
      */
     public String getSelectedText() {
         return mHasSelection ? mLastSelectedText : "";
     }
 
     /**
@@ skipping 1126 matching lines @@
         mUnselectAllOnActionModeDismiss = true;
         if (mActionMode == null) {
             // There is no ActionMode, so remove the selection.
             mImeAdapter.unselect();
         } else {
             getContentViewClient().onContextualActionBarShown();
         }
     }
 
     public boolean getUseDesktopUserAgent() {
-        if (mNativeContentViewCore != 0) {
-            return nativeGetUseDesktopUserAgent(mNativeContentViewCore);
-        }
-        return false;
+        assert mWebContents != null;
+        return mWebContents.getNavigationController().getUseDesktopUserAgent();
     }
 
     /**
      * Set whether or not we're using a desktop user agent for the currently loaded page.
      * @param override If true, use a desktop user agent.  Use a mobile one otherwise.
      * @param reloadOnChange Reload the page if the UA has changed.
      */
     public void setUseDesktopUserAgent(boolean override, boolean reloadOnChange) {
-        if (mNativeContentViewCore != 0) {
-            nativeSetUseDesktopUserAgent(mNativeContentViewCore, override, reloadOnChange);
-        }
+        assert mWebContents != null;

[Yaron, 2014/07/22 20:49:06]

Sadly, I think this one can happen, which would be an inconsistency... Ted, I
forget, does native NTP have a WebContents?

[Ted C, 2014/07/23 00:04:22]

A CVC should always have a WebContents (unless destroy has been called), so I
think this assert is fine in this case.

+        mWebContents.getNavigationController().setUseDesktopUserAgent(override,
+                reloadOnChange);
     }
 
     public void clearSslPreferences() {
-        if (mNativeContentViewCore != 0) nativeClearSslPreferences(mNativeContentViewCore);
+        assert mWebContents != null;
+        mWebContents.getNavigationController().clearSslPreferences();
     }
 
     private boolean isSelectionHandleShowing() {
         return mSelectionHandleController != null && mSelectionHandleController.isShowing();
     }
 
     private boolean isInsertionHandleShowing() {
         return mInsertionHandleController != null && mInsertionHandleController.isShowing();
     }
 
@@ skipping 798 matching lines @@
      * @param animate Whether the transition should be animated or not.
      */
     public void updateTopControlsState(boolean enableHiding, boolean enableShowing,
             boolean animate) {
         assert mWebContents != null;
         mWebContents.updateTopControlsState(
                 enableHiding, enableShowing, animate);
     }
 
     /**
-     * Callback factory method for nativeGetNavigationHistory().
-     */
-    @CalledByNative
-    private void addToNavigationHistory(Object history, int index, String url, String virtualUrl,
-            String originalUrl, String title, Bitmap favicon) {
-        NavigationEntry entry = new NavigationEntry(
-                index, url, virtualUrl, originalUrl, title, favicon);
-        ((NavigationHistory) history).addEntry(entry);
-    }
-
-    /**
      * Get a copy of the navigation history of the view.
      */
     public NavigationHistory getNavigationHistory() {
-        NavigationHistory history = new NavigationHistory();
-        if (mNativeContentViewCore != 0) {
-            int currentIndex = nativeGetNavigationHistory(mNativeContentViewCore, history);
-            history.setCurrentEntryIndex(currentIndex);
-        }
-        return history;
+        assert mWebContents != null;
+        return mWebContents.getNavigationController().getNavigationHistory();
     }
 
     @Override
     public NavigationHistory getDirectedNavigationHistory(boolean isForward, int itemLimit) {
+        assert mWebContents != null;
         NavigationHistory history = new NavigationHistory();
-        if (mNativeContentViewCore != 0) {
-            nativeGetDirectedNavigationHistory(
-                mNativeContentViewCore, history, isForward, itemLimit);
-        }
+        mWebContents.getNavigationController().getDirectedNavigationHistory(
+                isForward, itemLimit);
         return history;
     }
 
     /**
      * @return The original request URL for the current navigation entry, or null if there is no
      *         current entry.
      */
     public String getOriginalUrlForActiveNavigationEntry() {
-        if (mNativeContentViewCore != 0) {
-            return nativeGetOriginalUrlForActiveNavigationEntry(mNativeContentViewCore);
-        }
-        return "";
+        assert mWebContents != null;
+        return mWebContents.getNavigationController().
+                getOriginalUrlForActiveNavigationEntry();
     }
 
     /**
      * @return The cached copy of render positions and scales.
      */
     public RenderCoordinates getRenderCoordinates() {
         return mRenderCoordinates;
     }
 
     @CalledByNative
@@ skipping 116 matching lines @@
 
     @CalledByNative
     private boolean isFullscreenRequiredForOrientationLock() {
         return mFullscreenRequiredForOrientationLock;
     }
 
     private native WebContents nativeGetWebContentsAndroid(long nativeContentViewCoreImpl);
 
     private native void nativeOnJavaContentViewCoreDestroyed(long nativeContentViewCoreImpl);
 
-    private native void nativeLoadUrl(
-            long nativeContentViewCoreImpl,
-            String url,
-            int loadUrlType,
-            int transitionType,
-            String referrerUrl,
-            int referrerPolicy,
-            int uaOverrideOption,
-            String extraHeaders,
-            byte[] postData,
-            String baseUrlForDataUrl,
-            String virtualUrlForDataUrl,
-            boolean canLoadLocalResources,
-            boolean isRendererInitiated);
-
     private native String nativeGetURL(long nativeContentViewCoreImpl);
 
     private native boolean nativeIsIncognito(long nativeContentViewCoreImpl);
 
     private native void nativeSetFocus(long nativeContentViewCoreImpl, boolean focused);
 
     private native void nativeSendOrientationChangeEvent(
             long nativeContentViewCoreImpl, int orientation);
 
     // All touch events (including flings, scrolls etc) accept coordinates in physical pixels.
@@ skipping 50 matching lines @@
     private native void nativeMoveCaret(long nativeContentViewCoreImpl, float x, float y);
 
     private native void nativeResetGestureDetection(long nativeContentViewCoreImpl);
     private native void nativeSetDoubleTapSupportEnabled(
             long nativeContentViewCoreImpl, boolean enabled);
     private native void nativeSetMultiTouchZoomSupportEnabled(
             long nativeContentViewCoreImpl, boolean enabled);
 
     private native void nativeSelectPopupMenuItems(long nativeContentViewCoreImpl, int[] indices);
 
-    private native void nativeClearHistory(long nativeContentViewCoreImpl);
-
     private native void nativeEvaluateJavaScript(long nativeContentViewCoreImpl,
             String script, JavaScriptCallback callback, boolean startRenderer);
 
     private native void nativePostMessageToFrame(long nativeContentViewCoreImpl, String frameId,
             String message, String sourceOrigin, String targetOrigin);
 
     private native long nativeGetNativeImeAdapter(long nativeContentViewCoreImpl);
 
     private native int nativeGetCurrentRenderProcessId(long nativeContentViewCoreImpl);
 
-    private native void nativeSetUseDesktopUserAgent(long nativeContentViewCoreImpl,
-            boolean enabled, boolean reloadOnChange);
-    private native boolean nativeGetUseDesktopUserAgent(long nativeContentViewCoreImpl);
-
-    private native void nativeClearSslPreferences(long nativeContentViewCoreImpl);
-
     private native void nativeSetAllowJavascriptInterfacesInspection(
             long nativeContentViewCoreImpl, boolean allow);
 
     private native void nativeAddJavascriptInterface(long nativeContentViewCoreImpl, Object object,
             String name, Class requiredAnnotation);
 
     private native void nativeRemoveJavascriptInterface(long nativeContentViewCoreImpl,
             String name);
 
-    private native int nativeGetNavigationHistory(long nativeContentViewCoreImpl, Object context);
-    private native void nativeGetDirectedNavigationHistory(long nativeContentViewCoreImpl,
-            Object context, boolean isForward, int maxEntries);
-    private native String nativeGetOriginalUrlForActiveNavigationEntry(
-            long nativeContentViewCoreImpl);
-
     private native void nativeWasResized(long nativeContentViewCoreImpl);
 
     private native void nativeSetAccessibilityEnabled(
             long nativeContentViewCoreImpl, boolean enabled);
 
     private native void nativeExtractSmartClipData(long nativeContentViewCoreImpl,
             int x, int y, int w, int h);
     private native void nativeSetBackgroundOpaque(long nativeContentViewCoreImpl, boolean opaque);
 
     private native void nativeResumeResponseDeferredAtStart(
             long nativeContentViewCoreImpl);
     private native void nativeSetHasPendingNavigationTransitionForTesting(
             long nativeContentViewCoreImpl);
 }