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Diffstat (limited to 'widget/android/fennec/ThumbnailHelper.h')
| -rw-r--r-- | widget/android/fennec/ThumbnailHelper.h | 302 |
1 files changed, 0 insertions, 302 deletions
diff --git a/widget/android/fennec/ThumbnailHelper.h b/widget/android/fennec/ThumbnailHelper.h deleted file mode 100644 index 08fae787e..000000000 --- a/widget/android/fennec/ThumbnailHelper.h +++ /dev/null @@ -1,302 +0,0 @@ -/* -*- Mode: c++; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*- - * This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#ifndef ThumbnailHelper_h -#define ThumbnailHelper_h - -#include "AndroidBridge.h" -#include "FennecJNINatives.h" -#include "gfxPlatform.h" -#include "mozIDOMWindow.h" -#include "nsAppShell.h" -#include "nsCOMPtr.h" -#include "nsIChannel.h" -#include "nsIDOMWindowUtils.h" -#include "nsIDOMClientRect.h" -#include "nsIDocShell.h" -#include "nsIHttpChannel.h" -#include "nsIPresShell.h" -#include "nsIURI.h" -#include "nsPIDOMWindow.h" -#include "nsPresContext.h" - -#include "mozilla/Preferences.h" - -namespace mozilla { - -class ThumbnailHelper final - : public java::ThumbnailHelper::Natives<ThumbnailHelper> - , public java::ZoomedView::Natives<ThumbnailHelper> -{ - ThumbnailHelper() = delete; - - static already_AddRefed<mozIDOMWindowProxy> - GetWindowForTab(int32_t aTabId) - { - nsAppShell* const appShell = nsAppShell::Get(); - if (!appShell) { - return nullptr; - } - - nsCOMPtr<nsIAndroidBrowserApp> browserApp = appShell->GetBrowserApp(); - if (!browserApp) { - return nullptr; - } - - nsCOMPtr<mozIDOMWindowProxy> window; - nsCOMPtr<nsIBrowserTab> tab; - - if (NS_FAILED(browserApp->GetBrowserTab(aTabId, getter_AddRefs(tab))) || - !tab || - NS_FAILED(tab->GetWindow(getter_AddRefs(window))) || - !window) { - return nullptr; - } - - return window.forget(); - } - - // Decides if we should store thumbnails for a given docshell based on the - // presence of a Cache-Control: no-store header and the - // "browser.cache.disk_cache_ssl" pref. - static bool - ShouldStoreThumbnail(nsIDocShell* docShell) - { - nsCOMPtr<nsIChannel> channel; - if (NS_FAILED(docShell->GetCurrentDocumentChannel( - getter_AddRefs(channel))) || !channel) { - return false; - } - - nsCOMPtr<nsIHttpChannel> httpChannel = do_QueryInterface(channel); - if (!httpChannel) { - // Allow storing non-HTTP thumbnails. - return true; - } - - // Don't store thumbnails for sites that didn't load or have - // Cache-Control: no-store. - uint32_t responseStatus = 0; - bool isNoStoreResponse = false; - - if (NS_FAILED(httpChannel->GetResponseStatus(&responseStatus)) || - (responseStatus / 100) != 2 || - NS_FAILED(httpChannel->IsNoStoreResponse(&isNoStoreResponse)) || - isNoStoreResponse) { - return false; - } - - // Deny storage if we're viewing a HTTPS page with a 'Cache-Control' - // header having a value that is not 'public', unless enabled by user. - nsCOMPtr<nsIURI> uri; - bool isHttps = false; - - if (NS_FAILED(channel->GetURI(getter_AddRefs(uri))) || - !uri || - NS_FAILED(uri->SchemeIs("https", &isHttps))) { - return false; - } - - if (!isHttps || - Preferences::GetBool("browser.cache.disk_cache_ssl", false)) { - // Allow storing non-HTTPS thumbnails, and HTTPS ones if enabled by - // user. - return true; - } - - nsAutoCString cacheControl; - if (NS_FAILED(httpChannel->GetResponseHeader( - NS_LITERAL_CSTRING("Cache-Control"), cacheControl))) { - return false; - } - - if (cacheControl.IsEmpty() || - cacheControl.LowerCaseEqualsLiteral("public")) { - // Allow no cache-control, or public cache-control. - return true; - } - return false; - } - - // Return a non-null nsIDocShell to indicate success. - static already_AddRefed<nsIDocShell> - GetThumbnailAndDocShell(mozIDOMWindowProxy* aWindow, - jni::ByteBuffer::Param aData, - int32_t aThumbWidth, int32_t aThumbHeight, - const CSSRect& aPageRect, float aZoomFactor) - { - nsCOMPtr<nsPIDOMWindowOuter> win = nsPIDOMWindowOuter::From(aWindow); - nsCOMPtr<nsIDocShell> docShell = win->GetDocShell(); - RefPtr<nsPresContext> presContext; - - if (!docShell || NS_FAILED(docShell->GetPresContext( - getter_AddRefs(presContext))) || !presContext) { - return nullptr; - } - - uint8_t* const data = static_cast<uint8_t*>(aData->Address()); - if (!data) { - return nullptr; - } - - const bool is24bit = !AndroidBridge::Bridge() || - AndroidBridge::Bridge()->GetScreenDepth() == 24; - const uint32_t stride = aThumbWidth * (is24bit ? 4 : 2); - - RefPtr<DrawTarget> dt = gfxPlatform::GetPlatform()->CreateDrawTargetForData( - data, - IntSize(aThumbWidth, aThumbHeight), - stride, - is24bit ? SurfaceFormat::B8G8R8A8 - : SurfaceFormat::R5G6B5_UINT16); - - if (!dt || !dt->IsValid()) { - return nullptr; - } - - nsCOMPtr<nsIPresShell> presShell = presContext->PresShell(); - RefPtr<gfxContext> context = gfxContext::CreateOrNull(dt); - MOZ_ASSERT(context); // checked the draw target above - - context->SetMatrix(context->CurrentMatrix().Scale( - aZoomFactor * float(aThumbWidth) / aPageRect.width, - aZoomFactor * float(aThumbHeight) / aPageRect.height)); - - const nsRect drawRect( - nsPresContext::CSSPixelsToAppUnits(aPageRect.x), - nsPresContext::CSSPixelsToAppUnits(aPageRect.y), - nsPresContext::CSSPixelsToAppUnits(aPageRect.width), - nsPresContext::CSSPixelsToAppUnits(aPageRect.height)); - const uint32_t renderDocFlags = - nsIPresShell::RENDER_IGNORE_VIEWPORT_SCROLLING | - nsIPresShell::RENDER_DOCUMENT_RELATIVE; - const nscolor bgColor = NS_RGB(255, 255, 255); - - if (NS_FAILED(presShell->RenderDocument( - drawRect, renderDocFlags, bgColor, context))) { - return nullptr; - } - - if (is24bit) { - gfxUtils::ConvertBGRAtoRGBA(data, stride * aThumbHeight); - } - - return docShell.forget(); - } - -public: - static void Init() - { - java::ThumbnailHelper::Natives<ThumbnailHelper>::Init(); - java::ZoomedView::Natives<ThumbnailHelper>::Init(); - } - - template<class Functor> - static void OnNativeCall(Functor&& aCall) - { - class IdleEvent : public nsAppShell::LambdaEvent<Functor> - { - using Base = nsAppShell::LambdaEvent<Functor>; - - public: - IdleEvent(Functor&& aCall) - : Base(Forward<Functor>(aCall)) - {} - - void Run() override - { - MessageLoop::current()->PostIdleTask( - NS_NewRunnableFunction(Move(Base::lambda))); - } - }; - - // Invoke RequestThumbnail on the main thread when the thread is idle. - nsAppShell::PostEvent(MakeUnique<IdleEvent>(Forward<Functor>(aCall))); - } - - static void - RequestThumbnail(jni::ByteBuffer::Param aData, jni::Object::Param aTab, - int32_t aTabId, int32_t aWidth, int32_t aHeight) - { - nsCOMPtr<mozIDOMWindowProxy> window = GetWindowForTab(aTabId); - if (!window || !aData) { - java::ThumbnailHelper::NotifyThumbnail( - aData, aTab, /* success */ false, /* store */ false); - return; - } - - // take a screenshot, as wide as possible, proportional to the destination size - nsCOMPtr<nsIDOMWindowUtils> utils = do_GetInterface(window); - nsCOMPtr<nsIDOMClientRect> rect; - float pageLeft = 0.0f, pageTop = 0.0f, pageWidth = 0.0f, pageHeight = 0.0f; - - if (!utils || - NS_FAILED(utils->GetRootBounds(getter_AddRefs(rect))) || - !rect || - NS_FAILED(rect->GetLeft(&pageLeft)) || - NS_FAILED(rect->GetTop(&pageTop)) || - NS_FAILED(rect->GetWidth(&pageWidth)) || - NS_FAILED(rect->GetHeight(&pageHeight)) || - int32_t(pageWidth) == 0 || int32_t(pageHeight) == 0) { - java::ThumbnailHelper::NotifyThumbnail( - aData, aTab, /* success */ false, /* store */ false); - return; - } - - const float aspectRatio = float(aWidth) / float(aHeight); - if (pageWidth / aspectRatio < pageHeight) { - pageHeight = pageWidth / aspectRatio; - } else { - pageWidth = pageHeight * aspectRatio; - } - - nsCOMPtr<nsIDocShell> docShell = GetThumbnailAndDocShell( - window, aData, aWidth, aHeight, - CSSRect(pageLeft, pageTop, pageWidth, pageHeight), - /* aZoomFactor */ 1.0f); - const bool success = !!docShell; - const bool store = success ? ShouldStoreThumbnail(docShell) : false; - - java::ThumbnailHelper::NotifyThumbnail(aData, aTab, success, store); - } - - static void - RequestZoomedViewData(jni::ByteBuffer::Param aData, int32_t aTabId, - int32_t aX, int32_t aY, - int32_t aWidth, int32_t aHeight, float aScale) - { - nsCOMPtr<mozIDOMWindowProxy> window = GetWindowForTab(aTabId); - if (!window || !aData) { - return; - } - - nsCOMPtr<nsPIDOMWindowOuter> win = nsPIDOMWindowOuter::From(window); - nsCOMPtr<nsIDocShell> docShell = win->GetDocShell(); - RefPtr<nsPresContext> presContext; - - if (!docShell || NS_FAILED(docShell->GetPresContext( - getter_AddRefs(presContext))) || !presContext) { - return; - } - - nsCOMPtr<nsIPresShell> presShell = presContext->PresShell(); - LayoutDeviceRect rect = LayoutDeviceRect(aX, aY, aWidth, aHeight); - const float resolution = presShell->GetCumulativeResolution(); - rect.Scale(1.0f / LayoutDeviceToLayerScale(resolution).scale); - - docShell = GetThumbnailAndDocShell( - window, aData, aWidth, aHeight, CSSRect::FromAppUnits( - rect.ToAppUnits(rect, presContext->AppUnitsPerDevPixel())), - aScale); - - if (docShell) { - java::LayerView::UpdateZoomedView(aData); - } - } -}; - -} // namespace mozilla - -#endif // ThumbnailHelper_h |