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/*
* Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple, Inc. All rights
* reserved.
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
* Copyright (C) 2012 Samsung Electronics. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_PAGE_CHROME_CLIENT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_PAGE_CHROME_CLIENT_H_
#include <memory>
#include "base/gtest_prod_util.h"
#include "base/optional.h"
#include "cc/input/event_listener_properties.h"
#include "third_party/blink/public/common/dom_storage/session_storage_namespace_id.h"
#include "third_party/blink/public/platform/blame_context.h"
#include "third_party/blink/public/platform/web_drag_operation.h"
#include "third_party/blink/public/platform/web_focus_type.h"
#include "third_party/blink/public/platform/web_layer_tree_view.h"
#include "third_party/blink/renderer/core/accessibility/ax_object_cache.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/frame/sandbox_flags.h"
#include "third_party/blink/renderer/core/html/forms/popup_menu.h"
#include "third_party/blink/renderer/core/inspector/console_types.h"
#include "third_party/blink/renderer/core/loader/frame_loader.h"
#include "third_party/blink/renderer/core/loader/navigation_policy.h"
#include "third_party/blink/renderer/core/style/computed_style_constants.h"
#include "third_party/blink/renderer/platform/cursor.h"
#include "third_party/blink/renderer/platform/graphics/touch_action.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/scroll/scroll_types.h"
#include "third_party/blink/renderer/platform/text/text_direction.h"
#include "third_party/blink/renderer/platform/transforms/transformation_matrix.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
// To avoid conflicts with the CreateWindow macro from the Windows SDK...
#undef CreateWindow
namespace cc {
class Layer;
struct OverscrollBehavior;
}
namespace blink {
class ColorChooser;
class ColorChooserClient;
class CompositorAnimationTimeline;
class DateTimeChooser;
class DateTimeChooserClient;
class Element;
class FileChooser;
class FloatPoint;
class Frame;
class FullscreenOptions;
class GraphicsLayer;
class HTMLFormControlElement;
class HTMLInputElement;
class HTMLSelectElement;
class HitTestLocation;
class HitTestResult;
class IntRect;
class KeyboardEvent;
class LocalFrame;
class LocalFrameView;
class Node;
class Page;
class PagePopup;
class PagePopupClient;
class PopupOpeningObserver;
class WebDragData;
class WebLayerTreeView;
class WebViewImpl;
struct DateTimeChooserParameters;
struct FrameLoadRequest;
struct ViewportDescription;
struct WebCursorInfo;
struct WebScreenInfo;
struct WebWindowFeatures;
class CORE_EXPORT ChromeClient
: public GarbageCollectedFinalized<ChromeClient> {
DISALLOW_COPY_AND_ASSIGN(ChromeClient);
public:
virtual ~ChromeClient() = default;
// Converts the scalar value from the window coordinates to the viewport
// scale.
virtual float WindowToViewportScalar(const float) const = 0;
virtual bool IsPopup() { return false; }
virtual void ChromeDestroyed() = 0;
// Requests the host invalidate the contents.
virtual void InvalidateRect(const IntRect& update_rect) = 0;
// Converts the rect from the viewport coordinates to screen coordinates.
virtual IntRect ViewportToScreen(const IntRect&,
const LocalFrameView*) const = 0;
virtual void ScheduleAnimation(const LocalFrameView*) = 0;
// The specified rectangle is adjusted for the minimum window size and the
// screen, then setWindowRect with the adjusted rectangle is called.
void SetWindowRectWithAdjustment(const IntRect&, LocalFrame&);
virtual IntRect RootWindowRect() = 0;
virtual IntRect PageRect() = 0;
virtual void Focus(LocalFrame*) = 0;
virtual bool CanTakeFocus(WebFocusType) = 0;
virtual void TakeFocus(WebFocusType) = 0;
virtual void FocusedNodeChanged(Node*, Node*) = 0;
virtual bool HadFormInteraction() const = 0;
virtual void BeginLifecycleUpdates() = 0;
// Start a system drag and drop operation.
virtual void StartDragging(LocalFrame*,
const WebDragData&,
WebDragOperationsMask,
const SkBitmap& drag_image,
const gfx::Point& drag_image_offset) = 0;
virtual bool AcceptsLoadDrops() const = 0;
// The LocalFrame pointer provides the ChromeClient with context about which
// LocalFrame wants to create the new Page. Also, the newly created window
// should not be shown to the user until the ChromeClient of the newly
// created Page has its show method called.
// The FrameLoadRequest parameter is only for ChromeClient to check if the
// request could be fulfilled. The ChromeClient should not load the request.
Page* CreateWindow(LocalFrame*,
const FrameLoadRequest&,
const WebWindowFeatures&,
NavigationPolicy,
SandboxFlags,
const SessionStorageNamespaceId&);
virtual void Show(NavigationPolicy) = 0;
// All the parameters should be in viewport space. That is, if an event
// scrolls by 10 px, but due to a 2X page scale we apply a 5px scroll to the
// root frame, all of which is handled as overscroll, we should return 10px
// as the overscrollDelta.
virtual void DidOverscroll(const FloatSize& overscroll_delta,
const FloatSize& accumulated_overscroll,
const FloatPoint& position_in_viewport,
const FloatSize& velocity_in_viewport,
const cc::OverscrollBehavior&) = 0;
virtual bool ShouldReportDetailedMessageForSource(LocalFrame&,
const String& source) = 0;
virtual void AddMessageToConsole(LocalFrame*,
MessageSource,
MessageLevel,
const String& message,
unsigned line_number,
const String& source_id,
const String& stack_trace) = 0;
virtual bool CanOpenBeforeUnloadConfirmPanel() = 0;
bool OpenBeforeUnloadConfirmPanel(const String& message,
LocalFrame*,
bool is_reload);
virtual void CloseWindowSoon() = 0;
bool OpenJavaScriptAlert(LocalFrame*, const String&);
bool OpenJavaScriptConfirm(LocalFrame*, const String&);
bool OpenJavaScriptPrompt(LocalFrame*,
const String& message,
const String& default_value,
String& result);
virtual bool TabsToLinks() = 0;
virtual WebViewImpl* GetWebView() const = 0;
virtual WebScreenInfo GetScreenInfo() const = 0;
virtual void SetCursor(const Cursor&, LocalFrame* local_root) = 0;
virtual void SetCursorOverridden(bool) = 0;
virtual void AutoscrollStart(WebFloatPoint position, LocalFrame*) {}
virtual void AutoscrollFling(WebFloatSize velocity, LocalFrame*) {}
virtual void AutoscrollEnd(LocalFrame*) {}
virtual Cursor LastSetCursorForTesting() const = 0;
Node* LastSetTooltipNodeForTesting() const {
return last_mouse_over_node_.Get();
}
virtual void SetCursorForPlugin(const WebCursorInfo&, LocalFrame*) = 0;
// Returns a custom visible content rect if a viewport override is active.
virtual base::Optional<IntRect> VisibleContentRectForPainting() const {
return base::nullopt;
}
// Returns the scale used to convert incoming input events while emulating
// device metics.
virtual float InputEventsScaleForEmulation() const { return 1; }
virtual void DispatchViewportPropertiesDidChange(
const ViewportDescription&) const {}
virtual bool DoubleTapToZoomEnabled() const { return false; }
virtual void ContentsSizeChanged(LocalFrame*, const IntSize&) const = 0;
virtual void PageScaleFactorChanged() const {}
virtual float ClampPageScaleFactorToLimits(float scale) const {
return scale;
}
virtual void MainFrameScrollOffsetChanged() const {}
virtual void ResizeAfterLayout() const {}
virtual void MainFrameLayoutUpdated() const {}
void MouseDidMoveOverElement(LocalFrame&,
const HitTestLocation&,
const HitTestResult&);
virtual void SetToolTip(LocalFrame&, const String&, TextDirection) = 0;
void ClearToolTip(LocalFrame&);
bool Print(LocalFrame*);
virtual ColorChooser* OpenColorChooser(LocalFrame*,
ColorChooserClient*,
const Color&) = 0;
// This function is used for:
// - Mandatory date/time choosers if InputMultipleFieldsUI flag is not set
// - Date/time choosers for types for which
// LayoutTheme::SupportsCalendarPicker returns true, if
// InputMultipleFieldsUI flag is set
// - <datalist> UI for date/time input types regardless of
// InputMultipleFieldsUI flag
virtual DateTimeChooser* OpenDateTimeChooser(
DateTimeChooserClient*,
const DateTimeChooserParameters&) = 0;
virtual void OpenTextDataListChooser(HTMLInputElement&) = 0;
virtual void OpenFileChooser(LocalFrame*, scoped_refptr<FileChooser>) = 0;
// Pass nullptr as the GraphicsLayer to detach the root layer.
// This sets the graphics layer for the LocalFrame's WebWidget, if it has
// one. Otherwise it sets it for the WebViewImpl.
virtual void AttachRootGraphicsLayer(GraphicsLayer*,
LocalFrame* local_root) = 0;
// Pass nullptr as the cc::Layer to detach the root layer.
// This sets the cc::Layer for the LocalFrame's WebWidget, if it has
// one. Otherwise it sets it for the WebViewImpl.
virtual void AttachRootLayer(scoped_refptr<cc::Layer>,
LocalFrame* local_root) = 0;
virtual void AttachCompositorAnimationTimeline(CompositorAnimationTimeline*,
LocalFrame* local_root) {}
virtual void DetachCompositorAnimationTimeline(CompositorAnimationTimeline*,
LocalFrame* local_root) {}
virtual void EnterFullscreen(LocalFrame&, const FullscreenOptions*) {}
virtual void ExitFullscreen(LocalFrame&) {}
virtual void FullscreenElementChanged(Element* old_element,
Element* new_element) {}
virtual void ClearLayerSelection(LocalFrame*) {}
virtual void UpdateLayerSelection(LocalFrame*, const cc::LayerSelection&) {}
virtual void SetEventListenerProperties(LocalFrame*,
cc::EventListenerClass,
cc::EventListenerProperties) = 0;
virtual cc::EventListenerProperties EventListenerProperties(
LocalFrame*,
cc::EventListenerClass) const = 0;
virtual void SetHasScrollEventHandlers(LocalFrame*, bool) = 0;
virtual void SetNeedsLowLatencyInput(LocalFrame*, bool) = 0;
virtual void SetNeedsUnbufferedInputForDebugger(LocalFrame*, bool) = 0;
virtual void RequestUnbufferedInputEvents(LocalFrame*) = 0;
virtual void SetTouchAction(LocalFrame*, TouchAction) = 0;
// Checks if there is an opened popup, called by LayoutMenuList::showPopup().
virtual bool HasOpenedPopup() const = 0;
virtual PopupMenu* OpenPopupMenu(LocalFrame&, HTMLSelectElement&) = 0;
virtual PagePopup* OpenPagePopup(PagePopupClient*) = 0;
virtual void ClosePagePopup(PagePopup*) = 0;
virtual DOMWindow* PagePopupWindowForTesting() const = 0;
virtual void SetBrowserControlsState(float top_height,
float bottom_height,
bool shrinks_layout){};
virtual void SetBrowserControlsShownRatio(float){};
virtual String AcceptLanguages() = 0;
enum class UIElementType {
kAlertDialog = 0,
kConfirmDialog = 1,
kPromptDialog = 2,
kPrintDialog = 3,
kPopup = 4
};
virtual bool ShouldOpenUIElementDuringPageDismissal(
LocalFrame&,
UIElementType,
const String&,
Document::PageDismissalType) const {
return false;
}
virtual bool IsSVGImageChromeClient() const { return false; }
virtual bool RequestPointerLock(LocalFrame*) { return false; }
virtual void RequestPointerUnlock(LocalFrame*) {}
virtual IntSize MinimumWindowSize() const { return IntSize(100, 100); }
virtual bool IsChromeClientImpl() const { return false; }
virtual void DidAssociateFormControlsAfterLoad(LocalFrame*) {}
virtual void DidChangeValueInTextField(HTMLFormControlElement&) {}
virtual void DidEndEditingOnTextField(HTMLInputElement&) {}
virtual void HandleKeyboardEventOnTextField(HTMLInputElement&,
KeyboardEvent&) {}
virtual void TextFieldDataListChanged(HTMLInputElement&) {}
virtual void DidChangeSelectionInSelectControl(HTMLFormControlElement&) {}
virtual void SelectFieldOptionsChanged(HTMLFormControlElement&) {}
virtual void AjaxSucceeded(LocalFrame*) {}
// Input method editor related functions.
virtual void ShowVirtualKeyboardOnElementFocus(LocalFrame&) {}
virtual void RegisterViewportLayers() const {}
virtual TransformationMatrix GetDeviceEmulationTransform() const {
return TransformationMatrix();
}
virtual void OnMouseDown(Node&) {}
virtual void DidUpdateBrowserControls() const {}
virtual void SetOverscrollBehavior(const cc::OverscrollBehavior&) {}
virtual void RegisterPopupOpeningObserver(PopupOpeningObserver*) = 0;
virtual void UnregisterPopupOpeningObserver(PopupOpeningObserver*) = 0;
virtual void NotifyPopupOpeningObservers() const = 0;
virtual FloatSize ElasticOverscroll() const { return FloatSize(); }
virtual void InstallSupplements(LocalFrame&);
virtual WebLayerTreeView* GetWebLayerTreeView(LocalFrame*) { return nullptr; }
virtual void RequestDecode(LocalFrame*,
const PaintImage& image,
base::OnceCallback<void(bool)> callback) {
std::move(callback).Run(false);
}
virtual void Trace(blink::Visitor*);
protected:
ChromeClient() = default;
virtual void ShowMouseOverURL(const HitTestResult&) = 0;
virtual void SetWindowRect(const IntRect&, LocalFrame&) = 0;
virtual bool OpenBeforeUnloadConfirmPanelDelegate(LocalFrame*,
bool is_reload) = 0;
virtual bool OpenJavaScriptAlertDelegate(LocalFrame*, const String&) = 0;
virtual bool OpenJavaScriptConfirmDelegate(LocalFrame*, const String&) = 0;
virtual bool OpenJavaScriptPromptDelegate(LocalFrame*,
const String& message,
const String& default_value,
String& result) = 0;
virtual void PrintDelegate(LocalFrame*) = 0;
virtual Page* CreateWindowDelegate(LocalFrame*,
const FrameLoadRequest&,
const WebWindowFeatures&,
NavigationPolicy,
SandboxFlags,
const SessionStorageNamespaceId&) = 0;
private:
bool CanOpenUIElementIfDuringPageDismissal(Frame& main_frame,
UIElementType,
const String& message);
void SetToolTip(LocalFrame&, const HitTestLocation&, const HitTestResult&);
WeakMember<Node> last_mouse_over_node_;
LayoutPoint last_tool_tip_point_;
String last_tool_tip_text_;
FRIEND_TEST_ALL_PREFIXES(ChromeClientTest, SetToolTipFlood);
FRIEND_TEST_ALL_PREFIXES(ChromeClientTest, SetToolTipEmptyString);
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_PAGE_CHROME_CLIENT_H_