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Gecko:Notes for mouse driver developers on Widnows: Difference between revisions
Gecko:Notes for mouse driver developers on Widnows (view source)
Revision as of 07:26, 31 March 2010
, 31 March 2010→Post/Send the messages to focused Gecko's window
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Please post/send the messages to '''focused''' Gecko's window rather than the window under the mouse cursor. Gecko honors the mouse cursor position when Gecko chose a scrolling target (detail of the rule is documented in [[Gecko:Mouse_Wheel_Scrolling]]). So, Gecko redirects the messages to a window under the cursor automatically. | Please post/send the messages to '''focused''' Gecko's window rather than the window under the mouse cursor. Gecko honors the mouse cursor position when Gecko chose a scrolling target (detail of the rule is documented in [[Gecko:Mouse_Wheel_Scrolling]]). So, Gecko redirects the messages to a window under the cursor automatically. | ||
Note that Gecko doesn't redirect the messages to a plug-in window even if it's under the mouse cursor (Gecko 1.9.3 and later). The reason is that Gecko manages mouse wheel transaction (documented in [[Gecko:Mouse_Wheel_Scrolling]]). The user may want to scroll the parent scrollable area of plug-in. For example, a plug-in window may come under the mouse cursor by scrolling its parent scrollable area, then, Gecko tries to keep scrolling the parent scrollable area rather than the plug-in's content. | Note that Gecko doesn't redirect the messages to a plug-in window even if it's under the mouse cursor (Gecko 1.9.3 and later). The reason is that Gecko manages mouse wheel transaction (documented in [[Gecko:Mouse_Wheel_Scrolling]]). The user may want to scroll the parent scrollable area of plug-in. For example, a plug-in window may come under the mouse cursor by scrolling its parent scrollable area, then, Gecko tries to keep scrolling the parent scrollable area rather than the plug-in's content. So, if some mouse drivers/utilities post/send messages to a plug-in window directly, it causes breaking this feature. | ||
= Please use wheel messages to unknown window = | = Please use wheel messages to unknown window = | ||