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      1 // Copyright 2013 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 #include "android_webview/native/aw_picture.h"
      6 
      7 #include "android_webview/native/java_browser_view_renderer_helper.h"
      8 #include "base/bind.h"
      9 #include "jni/AwPicture_jni.h"
     10 #include "third_party/skia/include/core/SkPicture.h"
     11 
     12 namespace android_webview {
     13 
     14 AwPicture::AwPicture(skia::RefPtr<SkPicture> picture)
     15     : picture_(picture) {
     16   DCHECK(picture_);
     17 }
     18 
     19 AwPicture::~AwPicture() {}
     20 
     21 void AwPicture::Destroy(JNIEnv* env, jobject obj) {
     22   delete this;
     23 }
     24 
     25 jint AwPicture::GetWidth(JNIEnv* env, jobject obj) {
     26   return picture_->width();
     27 }
     28 
     29 jint AwPicture::GetHeight(JNIEnv* env, jobject obj) {
     30   return picture_->height();
     31 }
     32 
     33 namespace {
     34 bool RenderPictureToCanvas(SkPicture* picture, SkCanvas* canvas) {
     35   picture->draw(canvas);
     36   return true;
     37 }
     38 }
     39 
     40 void AwPicture::Draw(JNIEnv* env, jobject obj, jobject canvas) {
     41   bool ok = JavaBrowserViewRendererHelper::GetInstance()
     42                 ->RenderViaAuxilaryBitmapIfNeeded(
     43                     canvas,
     44                     gfx::Vector2d(),
     45                     gfx::Size(picture_->width(), picture_->height()),
     46                     base::Bind(&RenderPictureToCanvas,
     47                                base::Unretained(picture_.get())));
     48   LOG_IF(ERROR, !ok) << "Couldn't draw picture";
     49 }
     50 
     51 bool RegisterAwPicture(JNIEnv* env) {
     52   return RegisterNativesImpl(env);
     53 }
     54 
     55 }  // namespace android_webview
     56