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Fix Linux handling of window exposure events #22268

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robert-ancell merged 2 commits into from
Nov 4, 2020
Merged

Fix Linux handling of window exposure events #22268

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086d3ce
Fix Linux handling of window exposure events
OmarEmaraDev Nov 3, 2020
63cbb6e
Clang format patch
OmarEmaraDev Nov 3, 2020
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11 changes: 11 additions & 0 deletions shell/platform/linux/fl_view.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -257,6 +257,16 @@ static void fl_view_size_allocate(GtkWidget* widget,
fl_view_geometry_changed(self);
}

// Implements GtkWidget::draw.
static gboolean fl_view_draw(GtkWidget* widget, cairo_t* cr) {
FlView* self = FL_VIEW(widget);
// The engine doesn't support exposure events, so instead, force redraw by
// sending a window metrics event of the same geometry. Since the geometry
// didn't change, only a frame will be scheduled.
fl_view_geometry_changed(self);
return TRUE;
}

// Implements GtkWidget::button_press_event.
static gboolean fl_view_button_press_event(GtkWidget* widget,
GdkEventButton* event) {
Expand Down Expand Up @@ -363,6 +373,7 @@ static void fl_view_class_init(FlViewClass* klass) {
G_OBJECT_CLASS(klass)->dispose = fl_view_dispose;
GTK_WIDGET_CLASS(klass)->realize = fl_view_realize;
GTK_WIDGET_CLASS(klass)->size_allocate = fl_view_size_allocate;
GTK_WIDGET_CLASS(klass)->draw = fl_view_draw;
GTK_WIDGET_CLASS(klass)->button_press_event = fl_view_button_press_event;
GTK_WIDGET_CLASS(klass)->button_release_event = fl_view_button_release_event;
GTK_WIDGET_CLASS(klass)->scroll_event = fl_view_scroll_event;
Expand Down