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1 /* | 1 /* |
2 * Copyright (C) 2009, 2010, 2011, 2012 Google Inc. All rights reserved. | 2 * Copyright (C) 2009, 2010, 2011, 2012 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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265 virtual WebFloatPoint pinchViewportOffset() const = 0; | 265 virtual WebFloatPoint pinchViewportOffset() const = 0; |
266 | 266 |
267 // PageScaleFactor will be force-clamped between minPageScale and maxPageSca
le | 267 // PageScaleFactor will be force-clamped between minPageScale and maxPageSca
le |
268 // (and these values will persist until setPageScaleFactorLimits is called | 268 // (and these values will persist until setPageScaleFactorLimits is called |
269 // again). | 269 // again). |
270 virtual void setPageScaleFactorLimits(float minPageScale, float maxPageScale
) = 0; | 270 virtual void setPageScaleFactorLimits(float minPageScale, float maxPageScale
) = 0; |
271 | 271 |
272 virtual float minimumPageScaleFactor() const = 0; | 272 virtual float minimumPageScaleFactor() const = 0; |
273 virtual float maximumPageScaleFactor() const = 0; | 273 virtual float maximumPageScaleFactor() const = 0; |
274 | 274 |
275 // Save the WebView's current scroll and scale state. Each call to this func
tion | |
276 // overwrites the previously saved scroll and scale state. | |
277 virtual void saveScrollAndScaleState() = 0; | |
278 | |
279 // Restore the previously saved scroll and scale state. After restoring the | |
280 // state, this function deletes any saved scroll and scale state. | |
281 virtual void restoreScrollAndScaleState() = 0; | |
282 | |
283 // Reset any saved values for the scroll and scale state. | 275 // Reset any saved values for the scroll and scale state. |
284 virtual void resetScrollAndScaleState() = 0; | 276 virtual void resetScrollAndScaleState() = 0; |
285 | 277 |
286 // Prevent the web page from setting min/max scale via the viewport meta | 278 // Prevent the web page from setting min/max scale via the viewport meta |
287 // tag. This is an accessibility feature that lets folks zoom in to web | 279 // tag. This is an accessibility feature that lets folks zoom in to web |
288 // pages even if the web page tries to block scaling. | 280 // pages even if the web page tries to block scaling. |
289 virtual void setIgnoreViewportTagScaleLimits(bool) = 0; | 281 virtual void setIgnoreViewportTagScaleLimits(bool) = 0; |
290 | 282 |
291 // Returns the "preferred" contents size, defined as the preferred minimum w
idth of the main document's contents | 283 // Returns the "preferred" contents size, defined as the preferred minimum w
idth of the main document's contents |
292 // and the minimum height required to display the main document without scro
llbars. | 284 // and the minimum height required to display the main document without scro
llbars. |
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505 | 497 |
506 // Testing functionality for TestRunner --------------------------------- | 498 // Testing functionality for TestRunner --------------------------------- |
507 | 499 |
508 protected: | 500 protected: |
509 ~WebView() {} | 501 ~WebView() {} |
510 }; | 502 }; |
511 | 503 |
512 } // namespace blink | 504 } // namespace blink |
513 | 505 |
514 #endif | 506 #endif |
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