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LibWeb+LibWebView+WebContent: Return a named enum from UI event handlers

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UI event handlers currently return a boolean where false means the event
was cancelled by a script on the page, or otherwise dropped. It has been
a point of confusion for some time now, as it's not particularly clear
what should be returned in some special cases, or how the UI process
should handle the response.

This adds an enumeration with a few states that indicate exactly how the
WebContent process handled the event. This should remove all ambiguity,
and let us properly handle these states going forward.

There should be no behavior change with this patch. It's meant to only
introduce the enum, not change any of our decisions based on the result.
This commit is contained in:
Timothy Flynn 2024-09-12 12:56:31 -04:00 • committed by Tim Flynn
commit 541968b30d
Notes: github-actions[bot] 2024-09-12 21:39:29 +00:00
15 changed files with 200 additions and 161 deletions
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3
Userland/Libraries/LibWebView/ViewImplementation.h
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@ -22,6 +22,7 @@
#include <LibWeb/HTML/ColorPickerUpdateState.h>
#include <LibWeb/HTML/FileFilter.h>
#include <LibWeb/HTML/SelectItem.h>
#include <LibWeb/Page/EventResult.h>
#include <LibWeb/Page/InputEvent.h>
#include <LibWebView/Forward.h>
#include <LibWebView/WebContentClient.h>
@ -61,7 +62,7 @@ public:
float device_pixel_ratio() const { return m_device_pixel_ratio; }
void enqueue_input_event(Web::InputEvent);
void did_finish_handling_input_event(Badge<WebContentClient>, bool event_was_accepted);
void did_finish_handling_input_event(Badge<WebContentClient>, Web::EventResult event_result);
void set_preferred_color_scheme(Web::CSS::PreferredColorScheme);
void set_preferred_contrast(Web::CSS::PreferredContrast);