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layout/tools/layout-debug/src/nsRegressionTester.cpp@97036ab72558 (annotated)

layout/tools/layout-debug/src/nsRegressionTester.cpp

Tue, 06 Jan 2015 21:39:09 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Tue, 06 Jan 2015 21:39:09 +0100

branch

TOR_BUG_9701

changeset 8

97036ab72558

permissions

-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#include "nsISupports.h"
michael@0	7	#include "nsRegressionTester.h"
michael@0	8
michael@0	9	#include "nsXPIDLString.h"
michael@0	10	#include "nsReadableUtils.h"
michael@0	11	#include "nsIWindowWatcher.h"
michael@0	12	#include "nsPIDOMWindow.h"
michael@0	13	#include "nsIPresShell.h"
michael@0	14	#include "nsIURI.h"
michael@0	15	#include "nsISimpleEnumerator.h"
michael@0	16	#include "nsIDocShell.h"
michael@0	17	#include "nsIContentViewer.h"
michael@0	18	#include "nsIContentViewerFile.h"
michael@0	19	#include "nsIFrame.h"
michael@0	20	#include "nsStyleStruct.h"
michael@0	21	#include "nsIFrameUtil.h"
michael@0	22	#include "nsLayoutCID.h"
michael@0	23	#include "nsNetUtil.h"
michael@0	24	#include "nsIFile.h"
michael@0	25	#include "nsViewManager.h"
michael@0	26	#include "nsView.h"
michael@0	27
michael@0	28
michael@0	29
michael@0	30	static NS_DEFINE_CID(kFrameUtilCID, NS_FRAME_UTIL_CID);
michael@0	31
michael@0	32
michael@0	33	nsRegressionTester::nsRegressionTester()
michael@0	34	{
michael@0	35	}
michael@0	36
michael@0	37	nsRegressionTester::~nsRegressionTester()
michael@0	38	{
michael@0	39	}
michael@0	40
michael@0	41	NS_IMPL_ISUPPORTS(nsRegressionTester, nsILayoutRegressionTester)
michael@0	42
michael@0	43	NS_IMETHODIMP
michael@0	44	nsRegressionTester::DumpFrameModel(nsIDOMWindow *aWindowToDump,
michael@0	45	nsIFile *aDestFile,
michael@0	46	uint32_t aFlagsMask, int32_t *aResult)
michael@0	47	{
michael@0	48	NS_ENSURE_ARG(aWindowToDump);
michael@0	49	NS_ENSURE_ARG_POINTER(aResult);
michael@0	50
michael@0	51	*aResult = DUMP_RESULT_ERROR;
michael@0	52
michael@0	53	#ifndef DEBUG
michael@0	54	return NS_ERROR_NOT_AVAILABLE;
michael@0	55	#else
michael@0	56	nsresult rv = NS_ERROR_NOT_AVAILABLE;
michael@0	57	uint32_t busyFlags;
michael@0	58	bool stillLoading;
michael@0	59
michael@0	60	nsCOMPtr<nsIDocShell> docShell;
michael@0	61	rv = GetDocShellFromWindow(aWindowToDump, getter_AddRefs(docShell));
michael@0	62	if (NS_FAILED(rv)) return rv;
michael@0	63
michael@0	64	// find out if the document is loaded
michael@0	65	docShell->GetBusyFlags(&busyFlags);
michael@0	66	stillLoading = busyFlags & (nsIDocShell::BUSY_FLAGS_BUSY |
michael@0	67	nsIDocShell::BUSY_FLAGS_PAGE_LOADING);
michael@0	68	if (stillLoading)
michael@0	69	{
michael@0	70	*aResult = DUMP_RESULT_LOADING;
michael@0	71	return NS_OK;
michael@0	72	}
michael@0	73
michael@0	74	nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
michael@0	75
michael@0	76	nsIFrame* root = presShell->GetRootFrame();
michael@0	77
michael@0	78	FILE* fp = stdout;
michael@0	79	if (aDestFile)
michael@0	80	{
michael@0	81	rv = aDestFile->OpenANSIFileDesc("w", &fp);
michael@0	82	if (NS_FAILED(rv)) return rv;
michael@0	83	}
michael@0	84	if (aFlagsMask & DUMP_FLAGS_MASK_PRINT_MODE) {
michael@0	85	nsCOMPtr <nsIContentViewer> viewer;
michael@0	86	docShell->GetContentViewer(getter_AddRefs(viewer));
michael@0	87	if (viewer){
michael@0	88	nsCOMPtr<nsIContentViewerFile> viewerFile = do_QueryInterface(viewer);
michael@0	89	if (viewerFile) {
michael@0	90	viewerFile->Print(true, fp, nullptr);
michael@0	91	}
michael@0	92	}
michael@0	93	}
michael@0	94	else {
michael@0	95	root->DumpRegressionData(presShell->GetPresContext(), fp, 0);
michael@0	96	}
michael@0	97	if (fp != stdout)
michael@0	98	fclose(fp);
michael@0	99	*aResult = DUMP_RESULT_COMPLETED;
michael@0	100	return NS_OK;
michael@0	101	#endif
michael@0	102	}
michael@0	103
michael@0	104	NS_IMETHODIMP
michael@0	105	nsRegressionTester::CompareFrameModels(nsIFile *aBaseFile, nsIFile *aVerFile,
michael@0	106	uint32_t aFlags, bool *aResult)
michael@0	107	{
michael@0	108	NS_ENSURE_ARG(aBaseFile);
michael@0	109	NS_ENSURE_ARG(aVerFile);
michael@0	110	NS_ENSURE_ARG_POINTER(aResult);
michael@0	111
michael@0	112	*aResult = false;
michael@0	113
michael@0	114	nsresult rv;
michael@0	115	FILE* baseFile;
michael@0	116	rv = aBaseFile->OpenANSIFileDesc("r", &baseFile);
michael@0	117	if (NS_FAILED(rv)) return rv;
michael@0	118
michael@0	119	FILE* verFile;
michael@0	120	rv = aVerFile->OpenANSIFileDesc("r", &verFile);
michael@0	121	if (NS_FAILED(rv)) {
michael@0	122	fclose(baseFile);
michael@0	123	return rv;
michael@0	124	}
michael@0	125
michael@0	126	nsCOMPtr<nsIFrameUtil> frameUtil = do_CreateInstance(kFrameUtilCID, &rv);
michael@0	127	if (NS_SUCCEEDED(rv))
michael@0	128	{
michael@0	129	int32_t outputLevel = (aFlags == COMPARE_FLAGS_VERBOSE) ? 0 : 1;
michael@0	130	rv = frameUtil->CompareRegressionData(baseFile, verFile, outputLevel);
michael@0	131	// CompareRegressionData closes |baseFile| and |verFile|.
michael@0	132	} else {
michael@0	133	fclose(verFile);
michael@0	134	fclose(baseFile);
michael@0	135	}
michael@0	136
michael@0	137	*aResult = NS_FAILED(rv);
michael@0	138	return NS_OK;
michael@0	139	}
michael@0	140
michael@0	141	nsresult
michael@0	142	nsRegressionTester::GetDocShellFromWindow(nsIDOMWindow* inWindow, nsIDocShell** outShell)
michael@0	143	{
michael@0	144	nsCOMPtr<nsPIDOMWindow> window(do_QueryInterface(inWindow));
michael@0	145	if (!window) return NS_ERROR_FAILURE;
michael@0	146
michael@0	147	*outShell = window->GetDocShell();
michael@0	148	NS_IF_ADDREF(*outShell);
michael@0	149
michael@0	150	return NS_OK;
michael@0	151	}