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Summary: * Do not send mouse events and emulated up/down keys to programs when read-only mode is enabled. * Set the currentTerminalDisplay before sending key events, like in keyPressEvent. * wheelEvent code is restructured a bit to easily separate code not allowed in read-only mode. Test Plan: * Start Konsole * Run `man man`, do not press any key after enter * Turn on read only mode * Try to scroll using mouse wheel. * Expected result: scrolling does not work in read-only mode * Actual result: scrolling works in read only mode (but only when no key has been pressed before on 2nd terminal screen) * Start konsole * Run a program which uses mouse events, e.g. `vim` (enable mouse with `:set mouse=a`) * Make the program state suitable for using mouse events, e.g. enter a few lines of text * Confirm that mouse events (clicks, selection, wheel) work in the program * Turn on read-only mode * Try: * Click (left/right/middle button), double click * Mouse wheel * Click and move (selecting) * Expected result: mouse events are not passed to the program in read-only mode; nothing happens * Actual result: mouse events are passed to the program Reviewers: #konsole, hindenburg Reviewed By: #konsole, hindenburg Subscribers: hindenburg, #konsole Tags: #konsole Differential Revision: https://phabricator.kde.org/D11763 (cherry picked from commit 0ca1391c)
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