The Tor Browser / file comparison
comparison: dom/base/BarProps.cpp
dom/base/BarProps.cpp
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- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:84a1332824db |
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| 1 /* -*- Mode: C++; tab-width: 2; 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/. */ | |
| 5 | |
| 6 #include "mozilla/dom/BarProps.h" | |
| 7 #include "mozilla/dom/BarPropBinding.h" | |
| 8 #include "nsContentUtils.h" | |
| 9 #include "nsGlobalWindow.h" | |
| 10 #include "nsIDocShell.h" | |
| 11 #include "nsIScrollable.h" | |
| 12 #include "nsIWebBrowserChrome.h" | |
| 13 | |
| 14 namespace mozilla { | |
| 15 namespace dom { | |
| 16 | |
| 17 // | |
| 18 // Basic (virtual) BarProp class implementation | |
| 19 // | |
| 20 BarProp::BarProp(nsGlobalWindow* aWindow) | |
| 21 : mDOMWindow(aWindow) | |
| 22 { | |
| 23 MOZ_ASSERT(aWindow->IsInnerWindow()); | |
| 24 SetIsDOMBinding(); | |
| 25 } | |
| 26 | |
| 27 BarProp::~BarProp() | |
| 28 { | |
| 29 } | |
| 30 | |
| 31 nsPIDOMWindow* | |
| 32 BarProp::GetParentObject() const | |
| 33 { | |
| 34 return mDOMWindow; | |
| 35 } | |
| 36 | |
| 37 JSObject* | |
| 38 BarProp::WrapObject(JSContext* aCx) | |
| 39 { | |
| 40 return BarPropBinding::Wrap(aCx, this); | |
| 41 } | |
| 42 | |
| 43 NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_1(BarProp, mDOMWindow) | |
| 44 NS_IMPL_CYCLE_COLLECTING_ADDREF(BarProp) | |
| 45 NS_IMPL_CYCLE_COLLECTING_RELEASE(BarProp) | |
| 46 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(BarProp) | |
| 47 NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY | |
| 48 NS_INTERFACE_MAP_ENTRY(nsISupports) | |
| 49 NS_INTERFACE_MAP_END | |
| 50 | |
| 51 bool | |
| 52 BarProp::GetVisibleByFlag(uint32_t aChromeFlag, ErrorResult& aRv) | |
| 53 { | |
| 54 nsCOMPtr<nsIWebBrowserChrome> browserChrome = GetBrowserChrome(); | |
| 55 NS_ENSURE_TRUE(browserChrome, false); | |
| 56 | |
| 57 uint32_t chromeFlags; | |
| 58 | |
| 59 if (NS_FAILED(browserChrome->GetChromeFlags(&chromeFlags))) { | |
| 60 aRv.Throw(NS_ERROR_FAILURE); | |
| 61 return false; | |
| 62 } | |
| 63 | |
| 64 return (chromeFlags & aChromeFlag); | |
| 65 } | |
| 66 | |
| 67 void | |
| 68 BarProp::SetVisibleByFlag(bool aVisible, uint32_t aChromeFlag, | |
| 69 ErrorResult& aRv) | |
| 70 { | |
| 71 nsCOMPtr<nsIWebBrowserChrome> browserChrome = GetBrowserChrome(); | |
| 72 NS_ENSURE_TRUE_VOID(browserChrome); | |
| 73 | |
| 74 if (!nsContentUtils::IsCallerChrome()) { | |
| 75 return; | |
| 76 } | |
| 77 | |
| 78 uint32_t chromeFlags; | |
| 79 | |
| 80 if (NS_FAILED(browserChrome->GetChromeFlags(&chromeFlags))) { | |
| 81 aRv.Throw(NS_ERROR_FAILURE); | |
| 82 return; | |
| 83 } | |
| 84 | |
| 85 if (aVisible) | |
| 86 chromeFlags |= aChromeFlag; | |
| 87 else | |
| 88 chromeFlags &= ~aChromeFlag; | |
| 89 | |
| 90 if (NS_FAILED(browserChrome->SetChromeFlags(chromeFlags))) { | |
| 91 aRv.Throw(NS_ERROR_FAILURE); | |
| 92 } | |
| 93 } | |
| 94 | |
| 95 already_AddRefed<nsIWebBrowserChrome> | |
| 96 BarProp::GetBrowserChrome() | |
| 97 { | |
| 98 if (!mDOMWindow) { | |
| 99 return nullptr; | |
| 100 } | |
| 101 | |
| 102 return mDOMWindow->GetWebBrowserChrome(); | |
| 103 } | |
| 104 | |
| 105 // | |
| 106 // MenubarProp class implementation | |
| 107 // | |
| 108 | |
| 109 MenubarProp::MenubarProp(nsGlobalWindow *aWindow) | |
| 110 : BarProp(aWindow) | |
| 111 { | |
| 112 } | |
| 113 | |
| 114 MenubarProp::~MenubarProp() | |
| 115 { | |
| 116 } | |
| 117 | |
| 118 bool | |
| 119 MenubarProp::GetVisible(ErrorResult& aRv) | |
| 120 { | |
| 121 return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_MENUBAR, aRv); | |
| 122 } | |
| 123 | |
| 124 void | |
| 125 MenubarProp::SetVisible(bool aVisible, ErrorResult& aRv) | |
| 126 { | |
| 127 BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_MENUBAR, aRv); | |
| 128 } | |
| 129 | |
| 130 // | |
| 131 // ToolbarProp class implementation | |
| 132 // | |
| 133 | |
| 134 ToolbarProp::ToolbarProp(nsGlobalWindow *aWindow) | |
| 135 : BarProp(aWindow) | |
| 136 { | |
| 137 } | |
| 138 | |
| 139 ToolbarProp::~ToolbarProp() | |
| 140 { | |
| 141 } | |
| 142 | |
| 143 bool | |
| 144 ToolbarProp::GetVisible(ErrorResult& aRv) | |
| 145 { | |
| 146 return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_TOOLBAR, aRv); | |
| 147 } | |
| 148 | |
| 149 void | |
| 150 ToolbarProp::SetVisible(bool aVisible, ErrorResult& aRv) | |
| 151 { | |
| 152 BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_TOOLBAR, | |
| 153 aRv); | |
| 154 } | |
| 155 | |
| 156 // | |
| 157 // LocationbarProp class implementation | |
| 158 // | |
| 159 | |
| 160 LocationbarProp::LocationbarProp(nsGlobalWindow *aWindow) | |
| 161 : BarProp(aWindow) | |
| 162 { | |
| 163 } | |
| 164 | |
| 165 LocationbarProp::~LocationbarProp() | |
| 166 { | |
| 167 } | |
| 168 | |
| 169 bool | |
| 170 LocationbarProp::GetVisible(ErrorResult& aRv) | |
| 171 { | |
| 172 return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_LOCATIONBAR, | |
| 173 aRv); | |
| 174 } | |
| 175 | |
| 176 void | |
| 177 LocationbarProp::SetVisible(bool aVisible, ErrorResult& aRv) | |
| 178 { | |
| 179 BarProp::SetVisibleByFlag(aVisible, nsIWebBrowserChrome::CHROME_LOCATIONBAR, | |
| 180 aRv); | |
| 181 } | |
| 182 | |
| 183 // | |
| 184 // PersonalbarProp class implementation | |
| 185 // | |
| 186 | |
| 187 PersonalbarProp::PersonalbarProp(nsGlobalWindow *aWindow) | |
| 188 : BarProp(aWindow) | |
| 189 { | |
| 190 } | |
| 191 | |
| 192 PersonalbarProp::~PersonalbarProp() | |
| 193 { | |
| 194 } | |
| 195 | |
| 196 bool | |
| 197 PersonalbarProp::GetVisible(ErrorResult& aRv) | |
| 198 { | |
| 199 return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_PERSONAL_TOOLBAR, | |
| 200 aRv); | |
| 201 } | |
| 202 | |
| 203 void | |
| 204 PersonalbarProp::SetVisible(bool aVisible, ErrorResult& aRv) | |
| 205 { | |
| 206 BarProp::SetVisibleByFlag(aVisible, | |
| 207 nsIWebBrowserChrome::CHROME_PERSONAL_TOOLBAR, | |
| 208 aRv); | |
| 209 } | |
| 210 | |
| 211 // | |
| 212 // StatusbarProp class implementation | |
| 213 // | |
| 214 | |
| 215 StatusbarProp::StatusbarProp(nsGlobalWindow *aWindow) | |
| 216 : BarProp(aWindow) | |
| 217 { | |
| 218 } | |
| 219 | |
| 220 StatusbarProp::~StatusbarProp() | |
| 221 { | |
| 222 } | |
| 223 | |
| 224 bool | |
| 225 StatusbarProp::GetVisible(ErrorResult& aRv) | |
| 226 { | |
| 227 return BarProp::GetVisibleByFlag(nsIWebBrowserChrome::CHROME_STATUSBAR, aRv); | |
| 228 } | |
| 229 | |
| 230 void | |
| 231 StatusbarProp::SetVisible(bool aVisible, ErrorResult& aRv) | |
| 232 { | |
| 233 return BarProp::SetVisibleByFlag(aVisible, | |
| 234 nsIWebBrowserChrome::CHROME_STATUSBAR, aRv); | |
| 235 } | |
| 236 | |
| 237 // | |
| 238 // ScrollbarsProp class implementation | |
| 239 // | |
| 240 | |
| 241 ScrollbarsProp::ScrollbarsProp(nsGlobalWindow *aWindow) | |
| 242 : BarProp(aWindow) | |
| 243 { | |
| 244 } | |
| 245 | |
| 246 ScrollbarsProp::~ScrollbarsProp() | |
| 247 { | |
| 248 } | |
| 249 | |
| 250 bool | |
| 251 ScrollbarsProp::GetVisible(ErrorResult& aRv) | |
| 252 { | |
| 253 if (!mDOMWindow) { | |
| 254 return true; | |
| 255 } | |
| 256 | |
| 257 nsCOMPtr<nsIScrollable> scroller = | |
| 258 do_QueryInterface(mDOMWindow->GetDocShell()); | |
| 259 | |
| 260 if (!scroller) { | |
| 261 return true; | |
| 262 } | |
| 263 | |
| 264 int32_t prefValue; | |
| 265 scroller->GetDefaultScrollbarPreferences( | |
| 266 nsIScrollable::ScrollOrientation_Y, &prefValue); | |
| 267 if (prefValue != nsIScrollable::Scrollbar_Never) { | |
| 268 return true; | |
| 269 } | |
| 270 | |
| 271 scroller->GetDefaultScrollbarPreferences( | |
| 272 nsIScrollable::ScrollOrientation_X, &prefValue); | |
| 273 return prefValue != nsIScrollable::Scrollbar_Never; | |
| 274 } | |
| 275 | |
| 276 void | |
| 277 ScrollbarsProp::SetVisible(bool aVisible, ErrorResult& aRv) | |
| 278 { | |
| 279 if (!nsContentUtils::IsCallerChrome()) { | |
| 280 return; | |
| 281 } | |
| 282 | |
| 283 /* Scrollbars, unlike the other barprops, implement visibility directly | |
| 284 rather than handing off to the superclass (and from there to the | |
| 285 chrome window) because scrollbar visibility uniquely applies only | |
| 286 to the window making the change (arguably. it does now, anyway.) | |
| 287 and because embedding apps have no interface for implementing this | |
| 288 themselves, and therefore the implementation must be internal. */ | |
| 289 | |
| 290 nsCOMPtr<nsIScrollable> scroller = | |
| 291 do_QueryInterface(mDOMWindow->GetDocShell()); | |
| 292 | |
| 293 if (scroller) { | |
| 294 int32_t prefValue; | |
| 295 | |
| 296 if (aVisible) { | |
| 297 prefValue = nsIScrollable::Scrollbar_Auto; | |
| 298 } else { | |
| 299 prefValue = nsIScrollable::Scrollbar_Never; | |
| 300 } | |
| 301 | |
| 302 scroller->SetDefaultScrollbarPreferences( | |
| 303 nsIScrollable::ScrollOrientation_Y, prefValue); | |
| 304 scroller->SetDefaultScrollbarPreferences( | |
| 305 nsIScrollable::ScrollOrientation_X, prefValue); | |
| 306 } | |
| 307 | |
| 308 /* Notably absent is the part where we notify the chrome window using | |
| 309 GetBrowserChrome()->SetChromeFlags(). Given the possibility of multiple | |
| 310 DOM windows (multiple top-level windows, even) within a single | |
| 311 chrome window, the historical concept of a single "has scrollbars" | |
| 312 flag in the chrome is inapplicable, and we can't tell at this level | |
| 313 whether we represent the particular DOM window that makes this decision | |
| 314 for the chrome. | |
| 315 | |
| 316 So only this object (and its corresponding DOM window) knows whether | |
| 317 scrollbars are visible. The corresponding chrome window will need to | |
| 318 ask (one of) its DOM window(s) when it needs to know about scrollbar | |
| 319 visibility, rather than caching its own copy of that information. | |
| 320 */ | |
| 321 } | |
| 322 | |
| 323 } // namespace dom | |
| 324 } // namespace mozilla | |
| 325 |
