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Bug 750846 - Move thumbnail size logic to Gecko. r=blassey

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This commit is contained in:
Brian Nicholson
2012-05-03 16:29:59 -07:00
parent e939d57e6a
commit 07bb942322
4 changed files with 55 additions and 65 deletions
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42
widget/android/AndroidBridge.cpp
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@@ -2256,6 +2256,46 @@ Java_org_mozilla_gecko_GeckoAppShell_allocateDirectBuffer(JNIEnv *jenv, jclass,
nsresult AndroidBridge::TakeScreenshot(nsIDOMWindow *window, PRInt32 srcX, PRInt32 srcY, PRInt32 srcW, PRInt32 srcH, PRInt32 dstW, PRInt32 dstH, PRInt32 tabId, float scale, PRInt32 token)
{
nsresult rv;
// take a screenshot, as wide as possible, proportional to the destination size
if (!srcW && !srcH) {
nsCOMPtr<nsIDOMDocument> doc;
rv = window->GetDocument(getter_AddRefs(doc));
NS_ENSURE_SUCCESS(rv, rv);
nsCOMPtr<nsIDOMElement> docElement;
rv = doc->GetDocumentElement(getter_AddRefs(docElement));
NS_ENSURE_SUCCESS(rv, rv);
PRInt32 viewportWidth;
PRInt32 viewportHeight;
PRInt32 pageWidth;
PRInt32 pageHeight;
window->GetInnerWidth(&viewportWidth);
window->GetInnerHeight(&viewportHeight);
docElement->GetScrollWidth(&pageWidth);
docElement->GetScrollHeight(&pageHeight);
// use the page or viewport dimensions, whichever is larger
PRInt32 width;
PRInt32 height;
width = viewportWidth > pageWidth ? viewportWidth : pageWidth;
height = viewportHeight > pageHeight ? viewportHeight : pageHeight;
if (!width || !height)
return NS_ERROR_FAILURE;
float aspectRatio = ((float) dstW) / dstH;
if (width / aspectRatio < height) {
srcW = width;
srcH = width / aspectRatio;
} else {
srcW = height * aspectRatio;
srcH = height;
}
}
nsCOMPtr<nsPIDOMWindow> win = do_QueryInterface(window);
if (!win)
return NS_ERROR_FAILURE;
@@ -2291,7 +2331,7 @@ nsresult AndroidBridge::TakeScreenshot(nsIDOMWindow *window, PRInt32 srcX, PRInt
nsRefPtr<gfxImageSurface> surf = new gfxImageSurface(static_cast<unsigned char*>(data), nsIntSize(dstW, dstH), stride, gfxASurface::ImageFormatRGB16_565);
nsRefPtr<gfxContext> context = new gfxContext(surf);
context->Scale(scale * dstW / srcW, scale * dstH / srcH);
nsresult rv = presShell->RenderDocument(r, renderDocFlags, bgColor, context);
rv = presShell->RenderDocument(r, renderDocFlags, bgColor, context);
NS_ENSURE_SUCCESS(rv, rv);
AndroidBridge::AutoLocalJNIFrame jniFrame(jenv, 1);
jenv->CallStaticVoidMethod(AndroidBridge::Bridge()->mGeckoAppShellClass, AndroidBridge::Bridge()->jNotifyScreenShot, buffer, tabId, srcX * dstW / srcW , srcY * dstH / srcH, dstW, dstH, token);