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Support JavaScript window.moveTo/By() and resizeTo/By() (fixes #698)

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Adds new CefDisplayHandler::OnContentsBoundsChange and
CefDisplayHandler::GetRootWindowScreenRect callbacks.

cefclient: Implement the above callbacks and call
CefBrowserHost::NotifyScreenInfoChanged when the root window
bounds change.

cefclient: osr: Use real screen bounds by default. Pass
`--fake-screen-bounds` for the old default behavior.

Load https://tests/window in cefclient for additional
implementation details and usage examples.
This commit is contained in:
Marshall Greenblatt
2025-04-23 20:33:07 -04:00
parent f59112d839
commit faa85bf980
68 changed files with 1725 additions and 700 deletions
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24
include/cef_browser.h
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@ -707,12 +707,24 @@ class CefBrowserHost : public virtual CefBaseRefCounted {
virtual void WasHidden(bool hidden) = 0;
///
/// Send a notification to the browser that the screen info has changed. The
/// browser will then call CefRenderHandler::GetScreenInfo to update the
/// screen information with the new values. This simulates moving the webview
/// window from one display to another, or changing the properties of the
/// current display. This method is only used when window rendering is
/// disabled.
/// Notify the browser that screen information has changed. Updated
/// information will be sent to the renderer process to configure screen size
/// and position values used by CSS and JavaScript (window.deviceScaleFactor,
/// window.screenX/Y, window.outerWidth/Height, etc.). For background see
/// https://bitbucket.org/chromiumembedded/cef/wiki/GeneralUsage.md#markdown-header-coordinate-systems
///
/// This method is used with (a) windowless rendering and (b) windowed
/// rendering with external (client-provided) root window.
///
/// With windowless rendering the browser will call
/// CefRenderHandler::GetScreenInfo, CefRenderHandler::GetRootScreenRect and
/// CefRenderHandler::GetViewRect. This simulates moving or resizing the root
/// window in the current display, moving the root window from one display to
/// another, or changing the properties of the current display.
///
/// With windowed rendering the browser will call
/// CefDisplayHandler::GetRootWindowScreenRect and use the associated
/// display properties.
///
/*--cef()--*/
virtual void NotifyScreenInfoChanged() = 0;