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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/browser/in_process_view_renderer.h"
      8 #include "android_webview/native/java_browser_view_renderer_helper.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                      jint left, jint top, jint right, jint bottom) {
     42   bool ok = InProcessViewRenderer::RenderViaAuxilaryBitmapIfNeeded(
     43       canvas,
     44       JavaBrowserViewRendererHelper::GetInstance(),
     45       gfx::Vector2d(),
     46       gfx::Rect(left, top, right - left, bottom - top),
     47       base::Bind(&RenderPictureToCanvas, base::Unretained(picture_.get())),
     48       this);
     49   LOG_IF(ERROR, !ok) << "Couldn't draw picture";
     50 }
     51 
     52 bool RegisterAwPicture(JNIEnv* env) {
     53   return RegisterNativesImpl(env) >= 0;
     54 }
     55 
     56 }  // namespace android_webview
     57