widget/windows/winrt/MetroUtils.h@ac0c01689b40
widget/windows/winrt/MetroUtils.h
Thu, 15 Jan 2015 15:59:08 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 15:59:08 +0100
- branch
- TOR_BUG_9701
- changeset 10
- ac0c01689b40
- permissions
- -rw-r--r--
Implement a real Private Browsing Mode condition by changing the API/ABI;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 #pragma once
8 #include "nsDebug.h"
9 #include "nsThreadUtils.h"
10 #include "nsString.h"
11 #include "nsPoint.h"
12 #include "WinUtils.h"
14 #include "mozwrlbase.h"
16 #include <stdio.h>
17 #include <windows.foundation.h>
18 #include <windows.ui.viewmanagement.h>
20 // HRESULT checkers, these warn on failure in debug builds
21 #ifdef DEBUG
22 #define DebugLogHR(hr) LogHRESULT(hr)
23 #else
24 #define DebugLogHR(hr)
25 #endif
26 #define AssertHRESULT(hr) \
27 if (FAILED(hr)) { \
28 DebugLogHR(hr); \
29 return; \
30 }
31 #define AssertRetHRESULT(hr, res) \
32 if (FAILED(hr)) { \
33 DebugLogHR(hr); \
34 return res; \
35 }
37 // MS Point helpers
38 #define POINT_CEIL_X(position) (uint32_t)ceil(position.X)
39 #define POINT_CEIL_Y(position) (uint32_t)ceil(position.Y)
41 class nsIBrowserDOMWindow;
42 class nsIDOMWindow;
43 struct nsIntRect;
45 namespace mozilla {
46 namespace widget {
47 namespace winrt {
49 template<unsigned int size, typename T>
50 HRESULT ActivateGenericInstance(wchar_t const (&RuntimeClassName)[size], Microsoft::WRL::ComPtr<T>& aOutObject) {
51 Microsoft::WRL::ComPtr<IActivationFactory> factory;
52 HRESULT hr = ABI::Windows::Foundation::GetActivationFactory(Microsoft::WRL::Wrappers::HStringReference(RuntimeClassName).Get(),
53 factory.GetAddressOf());
54 if (FAILED(hr))
55 return hr;
56 Microsoft::WRL::ComPtr<IInspectable> inspect;
57 hr = factory->ActivateInstance(inspect.GetAddressOf());
58 if (FAILED(hr))
59 return hr;
60 return inspect.As(&aOutObject);
61 }
63 } } }
65 class MetroUtils
66 {
67 typedef ABI::Windows::Foundation::IUriRuntimeClass IUriRuntimeClass;
68 typedef Microsoft::WRL::Wrappers::HString HString;
69 typedef ABI::Windows::UI::ViewManagement::ApplicationViewState ApplicationViewState;
70 typedef ABI::Windows::Foundation::Point Point;
71 typedef ABI::Windows::Foundation::Rect Rect;
73 public:
74 // Functions to convert between logical pixels as used by most Windows APIs
75 // and physical (device) pixels.
76 static double LogToPhysFactor();
77 static double PhysToLogFactor();
78 static nsIntPoint LogToPhys(const Point& aPt);
79 static nsIntRect LogToPhys(const Rect& aRect);
80 static Point PhysToLog(const nsIntPoint& aPt);
82 // Resolution scale factor
83 static double ScaleFactor();
85 static nsresult FireObserver(const char* aMessage, const char16_t* aData = nullptr);
87 static HRESULT CreateUri(HSTRING aUriStr, Microsoft::WRL::ComPtr<IUriRuntimeClass>& aUriOut);
88 static HRESULT CreateUri(HString& aHString, Microsoft::WRL::ComPtr<IUriRuntimeClass>& aUriOut);
89 static HRESULT GetViewState(ApplicationViewState& aState);
90 static HRESULT TryUnsnap(bool* aResult = nullptr);
91 static HRESULT ShowSettingsFlyout();
93 private:
94 static nsresult GetBrowserDOMWindow(nsCOMPtr<nsIBrowserDOMWindow> &aBWin);
95 static nsresult GetMostRecentWindow(const char16_t* aType, nsIDOMWindow** aWindow);
96 };
