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Unified Diff: content/browser/renderer_host/render_widget_host_view_base.h

Issue 1948343002: [reland] Browser Side Text Input State Tracking for OOPIF (Aura Only) (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Added the missing test file Created 4 years, 7 months ago
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Index: content/browser/renderer_host/render_widget_host_view_base.h
diff --git a/content/browser/renderer_host/render_widget_host_view_base.h b/content/browser/renderer_host/render_widget_host_view_base.h
index 8eb96897ecc8dc2feca83d74474372a6cdcf1550..687f16cd1822360cb0c10228ececfc15c30e3e58 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.h
+++ b/content/browser/renderer_host/render_widget_host_view_base.h
@@ -66,6 +66,7 @@ class BrowserAccessibilityManager;
class RenderWidgetHostViewBaseObserver;
class SyntheticGesture;
class SyntheticGestureTarget;
+class TextInputManager;
class WebCursor;
struct DidOverscrollParams;
struct NativeWebKeyboardEvent;
@@ -126,6 +127,12 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
// changed since the last time.
bool HasDisplayPropertyChanged(gfx::NativeView view);
+ // Called by the TextInputManager to notify the view about being removed from
+ // the list of registered views, i.e., TextInputManager is no longer tracking
+ // TextInputState from this view. The RWHV should reset |text_input_manager_|
+ // to nullptr.
+ void DidUnregisterFromTextInputManager(TextInputManager* text_input_manager);
+
base::WeakPtr<RenderWidgetHostViewBase> GetWeakPtr();
//----------------------------------------------------------------------------
@@ -240,6 +247,9 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
cc::SurfaceId original_surface,
gfx::Point* transformed_point);
+ // Updates the state of the input method attached to the view.
+ virtual void TextInputStateChanged(const TextInputState& text_input_state);
+
//----------------------------------------------------------------------------
// The following static methods are implemented by each platform.
@@ -265,9 +275,6 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
// Indicates whether the page has finished loading.
virtual void SetIsLoading(bool is_loading) = 0;
- // Updates the state of the input method attached to the view.
- virtual void TextInputStateChanged(const TextInputState& params) = 0;
-
// Cancel the ongoing composition of the input method attached to the view.
virtual void ImeCancelComposition() = 0;
@@ -385,6 +392,19 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
void NotifyObserversAboutShutdown();
+ // Returns a reference to the current instance of TextInputManager. The
+ // reference is obtained from RenderWidgetHostDelegate. The first time a
+ // reference is obtained (, which is not nullptr), its value is cached in
+ // |text_input_manager_|. Then this view is registered with TextInputManager
+ // (,i.e., the instance |text_input_manager_| referes to). The RWHV will
+ // unregister from the TextInputManager if it is destroyed or if the
+ // TextInputManager itself is destroyed. The unregistration of the RWHV from
+ // TextInputManager is necessary and must be done by explicitly calling
+ // TextInputManager::Unregister.
+ // It is safer to use this method when required rather than dereferencing
+ // |text_input_manager_|.
+ TextInputManager* GetTextInputManager();
+
// Whether this view is a popup and what kind of popup it is (select,
// autofill...).
blink::WebPopupType popup_type_;
@@ -412,7 +432,6 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
// The current selection range relative to the start of the web page.
gfx::Range selection_range_;
- protected:
// The scale factor of the display the renderer is currently on.
float current_device_scale_factor_;
@@ -423,6 +442,12 @@ class CONTENT_EXPORT RenderWidgetHostViewBase : public RenderWidgetHostView,
// renderer.
bool pinch_zoom_enabled_;
+ // A reference to current TextInputManager instance this RWHV is registered
+ // with. This is initially nullptr until the first time the view calls
+ // GetTextInputManager(). It can also become nullptr if the top-level
+ // RenderWidgetHostDelegate owning the TextInputManager is destroyed.
+ TextInputManager* text_input_manager_;
+
private:
void FlushInput();

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