Fix cursor blinking problem
The problem was that when the editor had no events the cursor was not blinking because the event loop was blocking on wait_event. Now we no longer calls wait_event without a timeout if the windows has the focus. When the window has the focus the timeout is set to 1 / fps so that the cursor can blinks. In addition we react to the "focus lost" event to ensure the documents are redrawn without the cursor.
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@ -378,6 +378,8 @@ function core.on_event(type, ...)
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core.root_view:open_doc(doc)
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end
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end
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elseif type == "focuslost" then
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core.root_view:on_focus_lost(...)
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elseif type == "quit" then
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core.quit()
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end
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@ -487,7 +489,12 @@ function core.run()
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-- do not wait of events at idle_iterations = 1 to give a chance at core.step to run
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-- and set "redraw" flag.
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if idle_iterations > 1 then
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system.wait_event()
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if system.window_has_focus() then
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-- keep running even with no events to make the cursor blinks
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system.wait_event(1 / config.fps)
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else
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system.wait_event()
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end
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end
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else
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idle_iterations = 0
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@ -504,6 +504,11 @@ function RootView:on_text_input(...)
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end
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function RootView:on_focus_lost(...)
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-- We force a redraw so documents can redraw without the cursor.
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core.redraw = true
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end
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function RootView:update()
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copy_position_and_size(self.root_node, self)
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self.root_node:update()
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@ -61,6 +61,10 @@ top:
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lua_pushstring(L, "exposed");
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return 1;
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}
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if (e.window.event == SDL_WINDOWEVENT_FOCUS_LOST) {
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lua_pushstring(L, "focuslost");
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return 1;
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}
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/* on some systems, when alt-tabbing to the window SDL will queue up
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** several KEYDOWN events for the `tab` key; we flush all keydown
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** events on focus so these are discarded */
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