mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-11-12 19:00:11 +01:00
50 lines
1.9 KiB
Plaintext
50 lines
1.9 KiB
Plaintext
README for the plugin event sample.
|
|
|
|
INTENT:
|
|
-------
|
|
The intent of this plugin is to demonstrate how to implement a
|
|
"real", native control as a plugin.
|
|
|
|
This sample shows how a plugin can sit "nicely" with the Mozilla event
|
|
framework - for example, getting and losing focus, and allowing keyboard,
|
|
mouse and resize events to be either consumed or passed on at the
|
|
plugin's discretion.
|
|
|
|
In this sample, we create a standard "edit" control using the
|
|
platform's native edit widget. Obviously if you really needed a simple
|
|
edit control, you would use a standard HTML or XUL widget - but a native
|
|
edit control was chosen for this demonstration as it is generally a simple
|
|
native widget, and allows us to concentrate on the event interaction.
|
|
|
|
WINDOWS NOTES:
|
|
--------------
|
|
A standard Windows edit control is created and subclassed. All keyboard and
|
|
mouse messages are passed back to Mozilla itself rather than passed to the
|
|
edit control. These messages then wind themselves back around the event
|
|
framework, and end up as calls to nsIPlugin::HandleEvent() calls.
|
|
|
|
If we let the keyboard messages go directly to the edit control,
|
|
we have no way of allowing the keystrokes we _dont_ want to be passed back. If
|
|
we let the mouse messages go directly to the control, we don't interact correctly
|
|
with focus.
|
|
|
|
PROBLEMS:
|
|
* Plugins on Windows don't have event messages.
|
|
* Plugins on Windows dont have key-pressed messages (only keyup and down)
|
|
* Focus interaction is not correct (probably need a focus event)
|
|
|
|
|
|
LINUX NOTES:
|
|
-----------
|
|
A standard Gtk edit control is used.
|
|
|
|
PROBLEMS:
|
|
* Focus has problems. If you click in the plugin window, then click in the
|
|
HTML edit widget, you get cursors in both places. Typing is still directed
|
|
at the plugin, even though focus was just set to the HTML widget. Using the
|
|
TAB key to change focus yields better results.
|
|
|
|
MAC NOTES:
|
|
----------
|
|
No Mac support at all.
|