ui/events/gesture_detection/gesture_provider.cc - Issue 321563002: Support minimum gesture bounds in GestureProvider

Unified Diff: ui/events/gesture_detection/gesture_provider.cc

Issue 321563002: Support minimum gesture bounds in GestureProvider (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Fix compile Created 6 years, 6 months ago

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Index: ui/events/gesture_detection/gesture_provider.cc

diff --git a/ui/events/gesture_detection/gesture_provider.cc b/ui/events/gesture_detection/gesture_provider.cc

index dbe4de4cdc83b50b7a48d4494d7722fe1c7a8df4..8a712ac82898a2043bfbd02afacde4dcf8204254 100644

--- a/ui/events/gesture_detection/gesture_provider.cc

+++ b/ui/events/gesture_detection/gesture_provider.cc

@@ -42,22 +42,20 @@ gfx::RectF GetBoundingBox(const MotionEvent& event) {

return bounds;

}

-GestureEventData CreateGesture(EventType type,

+GestureEventData CreateGesture(const GestureEventDetails& details,

int motion_event_id,

base::TimeTicks time,

float x,

float y,

size_t touch_point_count,

- const gfx::RectF& bounding_box,

- const GestureEventDetails& details) {

- return GestureEventData(type,

+ const gfx::RectF& bounding_box) {

+ return GestureEventData(details,

motion_event_id,

time,

static_cast<int>(touch_point_count),

- bounding_box,

- details);

+ bounding_box);

}

GestureEventData CreateGesture(EventType type,

@@ -76,17 +74,15 @@ GestureEventData CreateGesture(EventType type,

bounding_box);

}

-GestureEventData CreateGesture(EventType type,

- const MotionEvent& event,

- const GestureEventDetails& details) {

- return CreateGesture(type,

+GestureEventData CreateGesture(const GestureEventDetails& details,

+ const MotionEvent& event) {

+ return CreateGesture(details,

event.GetId(),

event.GetEventTime(),

event.GetX(),

event.GetY(),

event.GetPointerCount(),

- GetBoundingBox(event),

- details);

+ GetBoundingBox(event));

}

GestureEventData CreateGesture(EventType type,

@@ -100,8 +96,7 @@ GestureEventData CreateGesture(EventType type,

GetBoundingBox(event));

}

-GestureEventDetails CreateTapGestureDetails(EventType type,

- const MotionEvent& event) {

+GestureEventDetails CreateTapGestureDetails(EventType type) {

// Set the tap count to 1 even for ET_GESTURE_DOUBLE_TAP, in order to be

// consistent with double tap behavior on a mobile viewport. See

// crbug.com/234986 for context.

@@ -116,7 +111,8 @@ GestureEventDetails CreateTapGestureDetails(EventType type,

GestureProvider::Config::Config()

: display(gfx::Display::kInvalidDisplayID, gfx::Rect(1, 1)),

disable_click_delay(false),

- gesture_begin_end_types_enabled(false) {}

+ gesture_begin_end_types_enabled(false),

+ min_gesture_bounds_length(0) {}

GestureProvider::Config::~Config() {}

@@ -205,14 +201,13 @@ class GestureProvider::ScaleGestureListenerImpl

std::abs(dy));

}

GestureEventDetails pinch_details(ET_GESTURE_PINCH_UPDATE, scale, 0);

- provider_->Send(CreateGesture(ET_GESTURE_PINCH_UPDATE,

+ provider_->Send(CreateGesture(pinch_details,

e.GetId(),

detector.GetEventTime(),

detector.GetFocusX(),

detector.GetFocusY(),

e.GetPointerCount(),

- GetBoundingBox(e),

- pinch_details));

+ GetBoundingBox(e)));

return true;

}

@@ -303,7 +298,7 @@ class GestureProvider::GestureListenerImpl

seen_first_scroll_event_ = false;

GestureEventDetails tap_details(ET_GESTURE_TAP_DOWN, 0, 0);

- provider_->Send(CreateGesture(ET_GESTURE_TAP_DOWN, e, tap_details));

+ provider_->Send(CreateGesture(tap_details, e));

// Return true to indicate that we want to handle touch.

return true;

@@ -345,28 +340,26 @@ class GestureProvider::GestureListenerImpl

// Use the co-ordinates from the touch down, as these co-ordinates are

// used to determine which layer the scroll should affect.

- provider_->Send(CreateGesture(ET_GESTURE_SCROLL_BEGIN,

+ provider_->Send(CreateGesture(scroll_details,

e2.GetId(),

e2.GetEventTime(),

e1.GetX(),

e1.GetY(),

e2.GetPointerCount(),

- GetBoundingBox(e2),

- scroll_details));

+ GetBoundingBox(e2)));

}

if (distance_x || distance_y) {

const gfx::RectF bounding_box = GetBoundingBox(e2);

GestureEventDetails scroll_details(

ET_GESTURE_SCROLL_UPDATE, -distance_x, -distance_y);

- provider_->Send(CreateGesture(ET_GESTURE_SCROLL_UPDATE,

+ provider_->Send(CreateGesture(scroll_details,

e2.GetId(),

e2.GetEventTime(),

bounding_box.CenterPoint().x(),

bounding_box.CenterPoint().y(),

e2.GetPointerCount(),

- bounding_box,

- scroll_details));

+ bounding_box));

}

return true;

@@ -393,7 +386,7 @@ class GestureProvider::GestureListenerImpl

float velocity_x,

float velocity_y) OVERRIDE {

GestureEventDetails swipe_details(ET_GESTURE_SWIPE, velocity_x, velocity_y);

- provider_->Send(CreateGesture(ET_GESTURE_SWIPE, e2, swipe_details));

+ provider_->Send(CreateGesture(swipe_details, e2));

return true;

}

@@ -404,21 +397,19 @@ class GestureProvider::GestureListenerImpl

GestureEventDetails two_finger_tap_details(ET_GESTURE_TWO_FINGER_TAP,

e1.GetTouchMajor(),

e1.GetTouchMajor());

- provider_->Send(CreateGesture(ET_GESTURE_TWO_FINGER_TAP,

+ provider_->Send(CreateGesture(two_finger_tap_details,

e2.GetId(),

e2.GetEventTime(),

e1.GetX(),

e1.GetY(),

e2.GetPointerCount(),

- GetBoundingBox(e2),

- two_finger_tap_details));

+ GetBoundingBox(e2)));

return true;

}

virtual void OnShowPress(const MotionEvent& e) OVERRIDE {

GestureEventDetails show_press_details(ET_GESTURE_SHOW_PRESS, 0, 0);

- provider_->Send(

- CreateGesture(ET_GESTURE_SHOW_PRESS, e, show_press_details));

+ provider_->Send(CreateGesture(show_press_details, e));

}

virtual bool OnSingleTapUp(const MotionEvent& e) OVERRIDE {

@@ -439,9 +430,7 @@ class GestureProvider::GestureListenerImpl

// Notify Blink about this tapUp event anyway, when none of the above

// conditions applied.

provider_->Send(CreateGesture(

- ET_GESTURE_TAP_UNCONFIRMED,

- e,

- CreateTapGestureDetails(ET_GESTURE_TAP_UNCONFIRMED, e)));

+ CreateTapGestureDetails(ET_GESTURE_TAP_UNCONFIRMED), e));

}

@@ -459,8 +448,7 @@ class GestureProvider::GestureListenerImpl

ignore_single_tap_ = true;

- provider_->Send(CreateGesture(

- ET_GESTURE_TAP, e, CreateTapGestureDetails(ET_GESTURE_TAP, e)));

+ provider_->Send(CreateGesture(CreateTapGestureDetails(ET_GESTURE_TAP), e));

return true;

}

@@ -476,9 +464,7 @@ class GestureProvider::GestureListenerImpl

if (!provider_->IsPinchInProgress() &&

!provider_->IsScrollInProgress()) {

provider_->Send(

- CreateGesture(ET_GESTURE_DOUBLE_TAP,

- e,

- CreateTapGestureDetails(ET_GESTURE_DOUBLE_TAP, e)));

+ CreateGesture(CreateTapGestureDetails(ET_GESTURE_DOUBLE_TAP), e));

return true;

}

break;

@@ -493,8 +479,7 @@ class GestureProvider::GestureListenerImpl

SetIgnoreSingleTap(true);

GestureEventDetails long_press_details(ET_GESTURE_LONG_PRESS, 0, 0);

- provider_->Send(

- CreateGesture(ET_GESTURE_LONG_PRESS, e, long_press_details));

+ provider_->Send(CreateGesture(long_press_details, e));

// Returning true puts the GestureDetector in "longpress" mode, disabling

// further scrolling. This is undesirable, as it is quite common for a

@@ -554,7 +539,8 @@ GestureProvider::GestureProvider(const Config& config,

pinch_in_progress_(false),

double_tap_support_for_page_(true),

double_tap_support_for_platform_(true),

- gesture_begin_end_types_enabled_(config.gesture_begin_end_types_enabled) {

+ gesture_begin_end_types_enabled_(config.gesture_begin_end_types_enabled),

+ min_gesture_bounds_length_(config.min_gesture_bounds_length) {

DCHECK(client);

InitGestureDetectors(config);

}

@@ -644,25 +630,33 @@ void GestureProvider::Fling(const MotionEvent& event,

// start hint.

GestureEventDetails scroll_details(

ET_GESTURE_SCROLL_BEGIN, velocity_x, velocity_y);

- Send(CreateGesture(ET_GESTURE_SCROLL_BEGIN, event, scroll_details));

+ Send(CreateGesture(scroll_details, event));

}

EndTouchScrollIfNecessary(event, false);

GestureEventDetails fling_details(

ET_SCROLL_FLING_START, velocity_x, velocity_y);

- Send(CreateGesture(

- ET_SCROLL_FLING_START, event, fling_details));

+ Send(CreateGesture(fling_details, event));

}

-void GestureProvider::Send(const GestureEventData& gesture) {

+void GestureProvider::Send(GestureEventData gesture) {

DCHECK(!gesture.time.is_null());

// The only valid events that should be sent without an active touch sequence

// are SHOW_PRESS and TAP, potentially triggered by the double-tap

// delay timing out.

- DCHECK(current_down_event_ || gesture.type == ET_GESTURE_TAP ||

- gesture.type == ET_GESTURE_SHOW_PRESS);

- switch (gesture.type) {

+ DCHECK(current_down_event_ || gesture.type() == ET_GESTURE_TAP ||

+ gesture.type() == ET_GESTURE_SHOW_PRESS);

+ // TODO(jdduke): Provide a way of skipping this clamping for stylus and/or

+ // mouse-based input, perhaps by exposing the source type on MotionEvent.

+ const gfx::RectF& gesture_bounds = gesture.details.bounding_box_f();

+ gesture.details.set_bounding_box(gfx::RectF(

+ gesture_bounds.x(),

+ gesture_bounds.y(),

+ std::max(min_gesture_bounds_length_, gesture_bounds.width()),

+ std::max(min_gesture_bounds_length_, gesture_bounds.height())));

+ switch (gesture.type()) {

case ET_GESTURE_LONG_PRESS:

DCHECK(!scale_gesture_listener_->IsScaleGestureDetectionInProgress());

current_longpress_time_ = gesture.time;

@@ -720,7 +714,7 @@ bool GestureProvider::SendLongTapIfNecessary(const MotionEvent& event) {

!current_longpress_time_.is_null() &&

!scale_gesture_listener_->IsScaleGestureDetectionInProgress()) {

GestureEventDetails long_tap_details(ET_GESTURE_LONG_TAP, 0, 0);

- Send(CreateGesture(ET_GESTURE_LONG_TAP, event, long_tap_details));

+ Send(CreateGesture(long_tap_details, event));

return true;

}

return false;

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