1/* 2 * Copyright 2008, The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#define LOG_TAG "webcoreglue" 27 28#include <config.h> 29#include "WebFrameView.h" 30 31#include "android_graphics.h" 32#include "GraphicsContext.h" 33#include "Frame.h" 34#include "FrameTree.h" 35#include "FrameView.h" 36#include "HostWindow.h" 37#include "PlatformGraphicsContext.h" 38#include "WebViewCore.h" 39 40#include <SkCanvas.h> 41 42namespace android { 43 44WebFrameView::WebFrameView(WebCore::FrameView* frameView, WebViewCore* webViewCore) 45 : WebCoreViewBridge() 46 , mFrameView(frameView) 47 , mWebViewCore(webViewCore) { 48 // attach itself to mFrameView 49 mFrameView->setPlatformWidget(this); 50 Retain(mWebViewCore); 51} 52 53WebFrameView::~WebFrameView() { 54 Release(mWebViewCore); 55} 56 57void WebFrameView::draw(WebCore::GraphicsContext* ctx, const WebCore::IntRect& rect) { 58 WebCore::Frame* frame = mFrameView->frame(); 59 60 if (NULL == frame->contentRenderer()) { 61 // We only do this if there is nothing else to draw. 62 // If there is a renderer, it will fill the bg itself, so we don't want to 63 // double-draw (slow) 64 SkCanvas* canvas = ctx->platformContext()->mCanvas; 65 canvas->drawColor(SK_ColorWHITE); 66 } else if (frame->tree()->parent()) { 67 // Note: this code was moved from FrameLoaderClientAndroid 68 // 69 // For subframe, create a new translated rect from the given rectangle. 70 WebCore::IntRect transRect(rect); 71 // In Frame::markAllMatchesForText(), it does a fake paint. So we need 72 // to handle the case where platformContext() is null. However, we still 73 // want to call paint, since WebKit must have called the paint for a reason. 74 SkCanvas* canvas = ctx->platformContext() ? ctx->platformContext()->mCanvas : NULL; 75 if (canvas) { 76 const WebCore::IntRect& bounds = getBounds(); 77 78 // Grab the intersection of transRect and the frame's bounds. 79 transRect.intersect(bounds); 80 if (transRect.isEmpty()) 81 return; 82 83 // Move the transRect into the frame's local coordinates. 84 transRect.move(-bounds.x(), -bounds.y()); 85 86 // Translate the canvas, add a clip. 87 canvas->save(); 88 canvas->translate(SkIntToScalar(bounds.x()), SkIntToScalar(bounds.y())); 89 canvas->clipRect(transRect); 90 } 91 mFrameView->paintContents(ctx, transRect); 92 if (canvas) 93 canvas->restore(); 94 } else { 95 mFrameView->paintContents(ctx, rect); 96 } 97} 98 99void WebFrameView::setView(WebCore::FrameView* frameView) { 100 mFrameView = frameView; 101 mFrameView->setPlatformWidget(this); 102} 103 104} // namespace android 105