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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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| 283 // in partial CSS pixels. | 283 // in partial CSS pixels. |
| 284 virtual WebFloatPoint visualViewportOffset() const = 0; | 284 virtual WebFloatPoint visualViewportOffset() const = 0; |
| 285 | 285 |
| 286 // Get the visual viewport's size in CSS pixels. | 286 // Get the visual viewport's size in CSS pixels. |
| 287 virtual WebFloatSize visualViewportSize() const = 0; | 287 virtual WebFloatSize visualViewportSize() const = 0; |
| 288 | 288 |
| 289 // Sets the default minimum, and maximum page scale. These will be overridden | 289 // Sets the default minimum, and maximum page scale. These will be overridden |
| 290 // by the page or by the overrides below if they are set. | 290 // by the page or by the overrides below if they are set. |
| 291 virtual void setDefaultPageScaleLimits(float minScale, float maxScale) = 0; | 291 virtual void setDefaultPageScaleLimits(float minScale, float maxScale) = 0; |
| 292 | 292 |
| 293 // Sets the initial page scale to the given factor. This scale setting overrid
es | 293 // Sets the initial page scale to the given factor. This scale setting |
| 294 // overrides |
| 294 // page scale set in the page's viewport meta tag. | 295 // page scale set in the page's viewport meta tag. |
| 295 virtual void setInitialPageScaleOverride(float) = 0; | 296 virtual void setInitialPageScaleOverride(float) = 0; |
| 296 | 297 |
| 297 // Sets the maximum page scale considered to be legible. Automatic zooms (e.g,
double-tap | 298 // Sets the maximum page scale considered to be legible. Automatic zooms (e.g, |
| 298 // or find in page) will have the page scale limited to this value times the f
ont scale | 299 // double-tap or find in page) will have the page scale limited to this value |
| 299 // factor. Manual pinch zoom will not be affected by this limit. | 300 // times the font scale factor. Manual pinch zoom will not be affected by this |
| 301 // limit. |
| 300 virtual void setMaximumLegibleScale(float) = 0; | 302 virtual void setMaximumLegibleScale(float) = 0; |
| 301 | 303 |
| 302 // Reset any saved values for the scroll and scale state. | 304 // Reset any saved values for the scroll and scale state. |
| 303 virtual void resetScrollAndScaleState() = 0; | 305 virtual void resetScrollAndScaleState() = 0; |
| 304 | 306 |
| 305 // Prevent the web page from setting min/max scale via the viewport meta | 307 // Prevent the web page from setting min/max scale via the viewport meta |
| 306 // tag. This is an accessibility feature that lets folks zoom in to web | 308 // tag. This is an accessibility feature that lets folks zoom in to web |
| 307 // pages even if the web page tries to block scaling. | 309 // pages even if the web page tries to block scaling. |
| 308 virtual void setIgnoreViewportTagScaleLimits(bool) = 0; | 310 virtual void setIgnoreViewportTagScaleLimits(bool) = 0; |
| 309 | 311 |
| 310 // Returns the "preferred" contents size, defined as the preferred minimum wid
th of the main document's contents | 312 // Returns the "preferred" contents size, defined as the preferred minimum |
| 311 // and the minimum height required to display the main document without scroll
bars. | 313 // width of the main document's contents and the minimum height required to |
| 312 // The returned size has the page zoom factor applied. | 314 // display the main document without scrollbars. The returned size has the |
| 315 // page zoom factor applied. |
| 313 virtual WebSize contentsPreferredMinimumSize() = 0; | 316 virtual WebSize contentsPreferredMinimumSize() = 0; |
| 314 | 317 |
| 315 // Sets the display mode of the web app. | 318 // Sets the display mode of the web app. |
| 316 virtual void setDisplayMode(WebDisplayMode) = 0; | 319 virtual void setDisplayMode(WebDisplayMode) = 0; |
| 317 | 320 |
| 318 // Sets the ratio as computed by computePageScaleConstraints. | 321 // Sets the ratio as computed by computePageScaleConstraints. |
| 319 // TODO(oshima): Remove this once the device scale factor implementation is fu
lly | 322 // TODO(oshima): Remove this once the device scale factor implementation is |
| 320 // migrated to use zooming mechanism. | 323 // fully migrated to use zooming mechanism. |
| 321 virtual void setDeviceScaleFactor(float) = 0; | 324 virtual void setDeviceScaleFactor(float) = 0; |
| 322 | 325 |
| 323 // Sets the additional zoom factor used for device scale factor. This is used | 326 // Sets the additional zoom factor used for device scale factor. This is used |
| 324 // to scale the content by the device scale factor, without affecting zoom lev
el. | 327 // to scale the content by the device scale factor, without affecting zoom |
| 328 // level. |
| 325 virtual void setZoomFactorForDeviceScaleFactor(float) = 0; | 329 virtual void setZoomFactorForDeviceScaleFactor(float) = 0; |
| 326 | 330 |
| 327 // Set and reset the device color profile. | 331 // Set and reset the device color profile. |
| 328 virtual void setDeviceColorProfile(const WebVector<char>&) = 0; | 332 virtual void setDeviceColorProfile(const WebVector<char>&) = 0; |
| 329 | 333 |
| 330 // Resize the view at the same time as changing the state of the top | 334 // Resize the view at the same time as changing the state of the top |
| 331 // controls. If |topControlsShrinkLayout| is true, the embedder shrunk the | 335 // controls. If |topControlsShrinkLayout| is true, the embedder shrunk the |
| 332 // WebView size by the top controls height. | 336 // WebView size by the top controls height. |
| 333 virtual void resizeWithTopControls(const WebSize&, | 337 virtual void resizeWithTopControls(const WebSize&, |
| 334 float topControlsHeight, | 338 float topControlsHeight, |
| 335 bool topControlsShrinkLayout) = 0; | 339 bool topControlsShrinkLayout) = 0; |
| 336 | 340 |
| 337 // Auto-Resize ----------------------------------------------------------- | 341 // Auto-Resize ----------------------------------------------------------- |
| 338 | 342 |
| 339 // In auto-resize mode, the view is automatically adjusted to fit the html | 343 // In auto-resize mode, the view is automatically adjusted to fit the html |
| 340 // content within the given bounds. | 344 // content within the given bounds. |
| 341 virtual void enableAutoResizeMode(const WebSize& minSize, | 345 virtual void enableAutoResizeMode(const WebSize& minSize, |
| 342 const WebSize& maxSize) = 0; | 346 const WebSize& maxSize) = 0; |
| 343 | 347 |
| 344 // Turn off auto-resize. | 348 // Turn off auto-resize. |
| 345 virtual void disableAutoResizeMode() = 0; | 349 virtual void disableAutoResizeMode() = 0; |
| 346 | 350 |
| 347 // Media --------------------------------------------------------------- | 351 // Media --------------------------------------------------------------- |
| 348 | 352 |
| 349 // Performs the specified media player action on the node at the given locatio
n. | 353 // Performs the specified media player action on the node at the given |
| 354 // location. |
| 350 virtual void performMediaPlayerAction(const WebMediaPlayerAction&, | 355 virtual void performMediaPlayerAction(const WebMediaPlayerAction&, |
| 351 const WebPoint& location) = 0; | 356 const WebPoint& location) = 0; |
| 352 | 357 |
| 353 // Performs the specified plugin action on the node at the given location. | 358 // Performs the specified plugin action on the node at the given location. |
| 354 virtual void performPluginAction(const WebPluginAction&, | 359 virtual void performPluginAction(const WebPluginAction&, |
| 355 const WebPoint& location) = 0; | 360 const WebPoint& location) = 0; |
| 356 | 361 |
| 357 // Data exchange ------------------------------------------------------- | 362 // Data exchange ------------------------------------------------------- |
| 358 | 363 |
| 359 // Do a hit test at given point and return the HitTestResult. | 364 // Do a hit test at given point and return the HitTestResult. |
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| 459 unsigned inactiveBackgroundColor, | 464 unsigned inactiveBackgroundColor, |
| 460 unsigned inactiveForegroundColor) = 0; | 465 unsigned inactiveForegroundColor) = 0; |
| 461 | 466 |
| 462 // Modal dialog support ------------------------------------------------ | 467 // Modal dialog support ------------------------------------------------ |
| 463 | 468 |
| 464 // Call these methods before and after running a nested, modal event loop | 469 // Call these methods before and after running a nested, modal event loop |
| 465 // to suspend script callbacks and resource loads. | 470 // to suspend script callbacks and resource loads. |
| 466 BLINK_EXPORT static void willEnterModalLoop(); | 471 BLINK_EXPORT static void willEnterModalLoop(); |
| 467 BLINK_EXPORT static void didExitModalLoop(); | 472 BLINK_EXPORT static void didExitModalLoop(); |
| 468 | 473 |
| 469 // Called to inform the WebView that a wheel fling animation was started exter
nally (for instance | 474 // Called to inform the WebView that a wheel fling animation was started |
| 470 // by the compositor) but must be completed by the WebView. | 475 // externally (for instance by the compositor) but must be completed by the |
| 476 // WebView. |
| 471 virtual void transferActiveWheelFlingAnimation( | 477 virtual void transferActiveWheelFlingAnimation( |
| 472 const WebActiveWheelFlingParameters&) = 0; | 478 const WebActiveWheelFlingParameters&) = 0; |
| 473 | 479 |
| 474 // Cancels an active fling, returning true if a fling was active. | 480 // Cancels an active fling, returning true if a fling was active. |
| 475 virtual bool endActiveFlingAnimation() = 0; | 481 virtual bool endActiveFlingAnimation() = 0; |
| 476 | 482 |
| 477 // Returns true if there's an active fling animation. | 483 // Returns true if there's an active fling animation. |
| 478 virtual bool isFlinging() const = 0; | 484 virtual bool isFlinging() const = 0; |
| 479 | 485 |
| 480 virtual void setShowPaintRects(bool) = 0; | 486 virtual void setShowPaintRects(bool) = 0; |
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| 525 // completed. | 531 // completed. |
| 526 WebWidget* widget() { return this; } | 532 WebWidget* widget() { return this; } |
| 527 | 533 |
| 528 protected: | 534 protected: |
| 529 ~WebView() {} | 535 ~WebView() {} |
| 530 }; | 536 }; |
| 531 | 537 |
| 532 } // namespace blink | 538 } // namespace blink |
| 533 | 539 |
| 534 #endif | 540 #endif |
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