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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 2d7392a778
commit b3f769bbe1
4 changed files with 51 additions and 65 deletions
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38
widget/android/AndroidBridge.cpp
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@@ -2395,6 +2395,42 @@ Java_org_mozilla_gecko_GeckoAppShell_allocateDirectBuffer(JNIEnv *env, jclass, j
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 viewportHeight;
PRInt32 pageWidth;
PRInt32 pageHeight;
window->GetInnerHeight(&viewportHeight);
docElement->GetScrollWidth(&pageWidth);
docElement->GetScrollHeight(&pageHeight);
// use the page or viewport dimensions, whichever is larger
PRInt32 width = pageWidth;
PRInt32 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;
}
}
JNIEnv* env = GetJNIEnv();
if (!env)
return NS_OK;
@@ -2432,7 +2468,7 @@ 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);
env->CallStaticVoidMethod(AndroidBridge::Bridge()->mGeckoAppShellClass, AndroidBridge::Bridge()->jNotifyScreenShot, buffer, tabId, srcX * dstW / srcW , srcY * dstH / srcH, dstW, dstH, token);
return NS_OK;