Merge "Content and viewport rects set in one step." into ics-mr1

1 files changed, 71 insertions, 88 deletions

diff --git a/Source/WebKit/android/nav/WebView.cpp b/Source/WebKit/android/nav/WebView.cpp
index ebf416e..c917a6c 100644
--- a/Source/WebKit/android/nav/WebView.cpp
+++ b/Source/WebKit/android/nav/WebView.cpp
@@ -119,7 +119,6 @@ enum DrawExtras { // keep this in sync with WebView.java
 
 struct JavaGlue {
     jweak       m_obj;
-    jmethodID   m_calcOurContentVisibleRectF;
     jmethodID   m_overrideLoading;
     jmethodID   m_scrollBy;
     jmethodID   m_sendMoveFocus;
@@ -157,7 +156,6 @@ WebView(JNIEnv* env, jobject javaWebView, int viewImpl, WTF::String drawableDir)
  //   m_javaGlue = new JavaGlue;
     m_javaGlue.m_obj = env->NewWeakGlobalRef(javaWebView);
     m_javaGlue.m_scrollBy = GetJMethod(env, clazz, "setContentScrollBy", "(IIZ)Z");
-    m_javaGlue.m_calcOurContentVisibleRectF = GetJMethod(env, clazz, "calcOurContentVisibleRectF", "(Landroid/graphics/RectF;)V");
     m_javaGlue.m_overrideLoading = GetJMethod(env, clazz, "overrideLoading", "(Ljava/lang/String;)V");
     m_javaGlue.m_sendMoveFocus = GetJMethod(env, clazz, "sendMoveFocus", "(II)V");
     m_javaGlue.m_sendMoveMouse = GetJMethod(env, clazz, "sendMoveMouse", "(IIII)V");
@@ -369,50 +367,29 @@ void scrollRectOnScreen(const IntRect& rect)
 {
     if (rect.isEmpty())
         return;
-    SkRect visible = SkRect::MakeEmpty();
-    calcOurContentVisibleRect(&visible);
     int dx = 0;
     int left = rect.x();
     int right = rect.maxX();
-    if (left < visible.fLeft) {
-        dx = left - visible.fLeft;
+    if (left < m_visibleRect.fLeft)
+        dx = left - m_visibleRect.fLeft;
     // Only scroll right if the entire width can fit on screen.
-    } else if (right > visible.fRight && right - left < visible.width()) {
-        dx = right - visible.fRight;
-    }
+    else if (right > m_visibleRect.fRight
+            && right - left < m_visibleRect.width())
+        dx = right - m_visibleRect.fRight;
     int dy = 0;
     int top = rect.y();
     int bottom = rect.maxY();
-    if (top < visible.fTop) {
-        dy = top - visible.fTop;
+    if (top < m_visibleRect.fTop)
+        dy = top - m_visibleRect.fTop;
     // Only scroll down if the entire height can fit on screen
-    } else if (bottom > visible.fBottom && bottom - top < visible.height()) {
-        dy = bottom - visible.fBottom;
-    }
+    else if (bottom > m_visibleRect.fBottom
+            && bottom - top < m_visibleRect.height())
+        dy = bottom - m_visibleRect.fBottom;
     if ((dx|dy) == 0 || !scrollBy(dx, dy))
         return;
     viewInvalidate();
 }
 
-void calcOurContentVisibleRect(SkRect* r)
-{
-    JNIEnv* env = JSC::Bindings::getJNIEnv();
-    AutoJObject javaObject = m_javaGlue.object(env);
-    if (!javaObject.get())
-        return;
-    jclass rectClass = env->FindClass("android/graphics/RectF");
-    jmethodID init = env->GetMethodID(rectClass, "<init>", "(FFFF)V");
-    jobject jRect = env->NewObject(rectClass, init, 0, 0, 0, 0);
-    env->CallVoidMethod(javaObject.get(), m_javaGlue.m_calcOurContentVisibleRectF, jRect);
-    r->fLeft = env->GetFloatField(jRect, m_javaGlue.m_rectFLeft);
-    r->fTop = env->GetFloatField(jRect, m_javaGlue.m_rectFTop);
-    r->fRight = r->fLeft + env->CallFloatMethod(jRect, m_javaGlue.m_rectFWidth);
-    r->fBottom = r->fTop + env->CallFloatMethod(jRect, m_javaGlue.m_rectFHeight);
-    env->DeleteLocalRef(rectClass);
-    env->DeleteLocalRef(jRect);
-    checkException(env);
-}
-
 void resetCursorRing()
 {
     m_ringAnimationEnd = 0;
@@ -438,9 +415,7 @@ bool drawCursorPreamble(CachedRoot* root)
 #if USE(ACCELERATED_COMPOSITING)
     if (node->isInLayer() && root->rootLayer()) {
         LayerAndroid* layer = root->rootLayer();
-        SkRect visible;
-        calcOurContentVisibleRect(&visible);
-        layer->updateFixedLayersPositions(visible);
+        layer->updateFixedLayersPositions(m_visibleRect);
         layer->updatePositions();
     }
 #endif
@@ -469,8 +444,9 @@ void drawCursorPostamble()
     }
 }
 
-bool drawGL(WebCore::IntRect& viewRect, WebCore::IntRect* invalRect, WebCore::IntRect& webViewRect,
-            int titleBarHeight, WebCore::IntRect& clip, float scale, int extras)
+bool drawGL(WebCore::IntRect& viewRect, WebCore::IntRect* invalRect,
+        WebCore::IntRect& webViewRect, int titleBarHeight,
+        WebCore::IntRect& clip, float scale, int extras)
 {
 #if USE(ACCELERATED_COMPOSITING)
     if (!m_baseLayer || inFullScreenMode())
@@ -521,15 +497,13 @@ bool drawGL(WebCore::IntRect& viewRect, WebCore::IntRect* invalRect, WebCore::In
     unsigned int pic = m_glWebViewState->currentPictureCounter();
     m_glWebViewState->glExtras()->setDrawExtra(extra);
 
-    SkRect visibleRect;
-    calcOurContentVisibleRect(&visibleRect);
     // Make sure we have valid coordinates. We might not have valid coords
     // if the zoom manager is still initializing. We will be redrawn
     // once the correct scale is set
-    if (!visibleRect.hasValidCoordinates())
+    if (!m_visibleRect.hasValidCoordinates())
         return false;
     bool pagesSwapped = false;
-    bool ret = m_glWebViewState->drawGL(viewRect, visibleRect, invalRect,
+    bool ret = m_glWebViewState->drawGL(viewRect, m_visibleRect, invalRect,
                                         webViewRect, titleBarHeight, clip, scale,
                                         &pagesSwapped);
     if (m_pageSwapCallbackRegistered && pagesSwapped) {
@@ -597,11 +571,9 @@ PictureSet* draw(SkCanvas* canvas, SkColor bgColor, int extras, bool split)
 #if USE(ACCELERATED_COMPOSITING)
     LayerAndroid* compositeLayer = compositeRoot();
     if (compositeLayer) {
-        SkRect visible;
-        calcOurContentVisibleRect(&visible);
         // call this to be sure we've adjusted for any scrolling or animations
         // before we actually draw
-        compositeLayer->updateFixedLayersPositions(visible);
+        compositeLayer->updateFixedLayersPositions(m_visibleRect);
         compositeLayer->updatePositions();
         // We have to set the canvas' matrix on the base layer
         // (to have fixed layers work as intended)
@@ -743,12 +715,10 @@ CachedRoot* getFrameCache(FrameCachePermission allowNewer)
         m_frameCacheUI->setRootLayer(compositeRoot());
 #if USE(ACCELERATED_COMPOSITING)
     if (layerId >= 0) {
-        SkRect visible;
-        calcOurContentVisibleRect(&visible);
         LayerAndroid* layer = const_cast<LayerAndroid*>(
                                                 m_frameCacheUI->rootLayer());
         if (layer) {
-            layer->updateFixedLayersPositions(visible);
+            layer->updateFixedLayersPositions(m_visibleRect);
             layer->updatePositions();
         }
     }
@@ -1545,6 +1515,10 @@ BaseLayerAndroid* getBaseLayer() {
     return m_baseLayer;
 }
 
+void setVisibleRect(SkRect& visibleRect) {
+    m_visibleRect = visibleRect;
+}
+
     bool m_isDrawingPaused;
 private: // local state for WebView
     // private to getFrameCache(); other functions operate in a different thread
@@ -1567,6 +1541,7 @@ private: // local state for WebView
     bool m_pageSwapCallbackRegistered;
 #endif
     RenderSkinButton* m_buttonSkin;
+    SkRect m_visibleRect;
 }; // end of WebView class
 
 
@@ -1578,7 +1553,9 @@ private: // local state for WebView
 class GLDrawFunctor : Functor {
     public:
     GLDrawFunctor(WebView* _wvInstance,
-            bool(WebView::*_funcPtr)(WebCore::IntRect&, WebCore::IntRect*, WebCore::IntRect&, int, WebCore::IntRect&, jfloat, jint),
+            bool(WebView::*_funcPtr)(WebCore::IntRect&, WebCore::IntRect*,
+                    WebCore::IntRect&, int, WebCore::IntRect&,
+                    jfloat, jint),
             WebCore::IntRect _viewRect, float _scale, int _extras) {
         wvInstance = _wvInstance;
         funcPtr = _funcPtr;
@@ -1604,7 +1581,8 @@ class GLDrawFunctor : Functor {
                               info->clipRight - info->clipLeft,
                               info->clipBottom - info->clipTop);
 
-        bool retVal = (*wvInstance.*funcPtr)(localViewRect, &inval, webViewRect, titlebarHeight, clip, scale, extras);
+        bool retVal = (*wvInstance.*funcPtr)(localViewRect, &inval, webViewRect,
+                titlebarHeight, clip, scale, extras);
         if (retVal) {
             IntRect finalInval;
             if (inval.isEmpty()) {
@@ -1632,7 +1610,8 @@ class GLDrawFunctor : Functor {
     }
     private:
     WebView* wvInstance;
-    bool (WebView::*funcPtr)(WebCore::IntRect&, WebCore::IntRect*, WebCore::IntRect&, int, WebCore::IntRect&, float, int);
+    bool (WebView::*funcPtr)(WebCore::IntRect&, WebCore::IntRect*,
+            WebCore::IntRect&, int, WebCore::IntRect&, float, int);
     WebCore::IntRect viewRect;
     WebCore::IntRect webViewRect;
     jfloat scale;
@@ -1816,9 +1795,20 @@ static jobject nativeCursorPosition(JNIEnv *env, jobject obj)
 
 static WebCore::IntRect jrect_to_webrect(JNIEnv* env, jobject obj)
 {
-    int L, T, R, B;
-    GraphicsJNI::get_jrect(env, obj, &L, &T, &R, &B);
-    return WebCore::IntRect(L, T, R - L, B - T);
+    if (obj) {
+        int L, T, R, B;
+        GraphicsJNI::get_jrect(env, obj, &L, &T, &R, &B);
+        return WebCore::IntRect(L, T, R - L, B - T);
+    } else
+        return WebCore::IntRect();
+}
+
+static SkRect jrectf_to_rect(JNIEnv* env, jobject obj)
+{
+    SkRect rect = SkRect::MakeEmpty();
+    if (obj)
+        GraphicsJNI::jrectf_to_rect(env, obj, &rect);
+    return rect;
 }
 
 static bool nativeCursorIntersects(JNIEnv *env, jobject obj, jobject visRect)
@@ -1859,56 +1849,49 @@ static void nativeDebugDump(JNIEnv *env, jobject obj)
 #endif
 }
 
-static jint nativeDraw(JNIEnv *env, jobject obj, jobject canv, jint color,
+static jint nativeDraw(JNIEnv *env, jobject obj, jobject canv,
+        jobject visible, jint color,
         jint extras, jboolean split) {
     SkCanvas* canvas = GraphicsJNI::getNativeCanvas(env, canv);
-    return reinterpret_cast<jint>(GET_NATIVE_VIEW(env, obj)->draw(canvas, color, extras, split));
+    WebView* webView = GET_NATIVE_VIEW(env, obj);
+    SkRect visibleRect = jrectf_to_rect(env, visible);
+    webView->setVisibleRect(visibleRect);
+    PictureSet* pictureSet = webView->draw(canvas, color, extras, split);
+    return reinterpret_cast<jint>(pictureSet);
 }
 
 static jint nativeGetDrawGLFunction(JNIEnv *env, jobject obj, jint nativeView,
                                     jobject jrect, jobject jviewrect,
+                                    jobject jvisiblerect,
                                     jfloat scale, jint extras) {
-    WebCore::IntRect viewRect;
-    if (jrect == NULL) {
-        viewRect = WebCore::IntRect();
-    } else {
-        viewRect = jrect_to_webrect(env, jrect);
-    }
+    WebCore::IntRect viewRect = jrect_to_webrect(env, jrect);
     WebView *wvInstance = (WebView*) nativeView;
-    GLDrawFunctor* functor = new GLDrawFunctor(wvInstance, &android::WebView::drawGL,
-            viewRect, scale, extras);
+    SkRect visibleRect = jrectf_to_rect(env, jvisiblerect);
+    wvInstance->setVisibleRect(visibleRect);
+
+    GLDrawFunctor* functor = new GLDrawFunctor(wvInstance,
+            &android::WebView::drawGL, viewRect, scale, extras);
     wvInstance->setFunctor((Functor*) functor);
 
-    WebCore::IntRect webViewRect;
-    if (jviewrect == NULL) {
-        webViewRect = WebCore::IntRect();
-    } else {
-        webViewRect = jrect_to_webrect(env, jviewrect);
-    }
+    WebCore::IntRect webViewRect = jrect_to_webrect(env, jviewrect);
     functor->updateViewRect(webViewRect);
 
     return (jint)functor;
 }
 
-static void nativeUpdateDrawGLFunction(JNIEnv *env, jobject obj, jobject jrect, jobject jviewrect) {
+static void nativeUpdateDrawGLFunction(JNIEnv *env, jobject obj, jobject jrect,
+        jobject jviewrect, jobject jvisiblerect) {
     WebView *wvInstance = GET_NATIVE_VIEW(env, obj);
-    if (wvInstance != NULL) {
+    if (wvInstance) {
         GLDrawFunctor* functor = (GLDrawFunctor*) wvInstance->getFunctor();
-        if (functor != NULL) {
-            WebCore::IntRect viewRect;
-            if (jrect == NULL) {
-                viewRect = WebCore::IntRect();
-            } else {
-                viewRect = jrect_to_webrect(env, jrect);
-            }
+        if (functor) {
+            WebCore::IntRect viewRect = jrect_to_webrect(env, jrect);
             functor->updateRect(viewRect);
 
-            WebCore::IntRect webViewRect;
-            if (jviewrect == NULL) {
-                webViewRect = WebCore::IntRect();
-            } else {
-                webViewRect = jrect_to_webrect(env, jviewrect);
-            }
+            SkRect visibleRect = jrectf_to_rect(env, jvisiblerect);
+            wvInstance->setVisibleRect(visibleRect);
+
+            WebCore::IntRect webViewRect = jrect_to_webrect(env, jviewrect);
             functor->updateViewRect(webViewRect);
         }
     }
@@ -2751,11 +2734,11 @@ static JNINativeMethod gJavaWebViewMethods[] = {
         (void*) nativeDebugDump },
     { "nativeDestroy", "()V",
         (void*) nativeDestroy },
-    { "nativeDraw", "(Landroid/graphics/Canvas;IIZ)I",
+    { "nativeDraw", "(Landroid/graphics/Canvas;Landroid/graphics/RectF;IIZ)I",
         (void*) nativeDraw },
-    { "nativeGetDrawGLFunction", "(ILandroid/graphics/Rect;Landroid/graphics/Rect;FI)I",
+    { "nativeGetDrawGLFunction", "(ILandroid/graphics/Rect;Landroid/graphics/Rect;Landroid/graphics/RectF;FI)I",
         (void*) nativeGetDrawGLFunction },
-    { "nativeUpdateDrawGLFunction", "(Landroid/graphics/Rect;Landroid/graphics/Rect;)V",
+    { "nativeUpdateDrawGLFunction", "(Landroid/graphics/Rect;Landroid/graphics/Rect;Landroid/graphics/RectF;)V",
         (void*) nativeUpdateDrawGLFunction },
     { "nativeDumpDisplayTree", "(Ljava/lang/String;)V",
         (void*) nativeDumpDisplayTree },