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content / public / test / text_input_test_utils.h [blame]
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_
#define CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_
#include <string>
#include <vector>
#include "base/functional/callback.h"
#include "base/memory/raw_ptr.h"
#include "build/build_config.h"
#include "content/public/test/test_utils.h"
#include "ui/base/ime/mojom/text_input_state.mojom.h"
#include "ui/base/ime/mojom/virtual_keyboard_types.mojom.h"
#include "ui/base/ime/text_input_mode.h"
#include "ui/base/ime/text_input_type.h"
#if defined(USE_AURA)
#include "ui/events/event_constants.h"
#endif
#if BUILDFLAG(IS_MAC)
#include "content/public/test/fake_local_frame.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#endif
namespace gfx {
class Range;
}
namespace ui {
struct ImeTextSpan;
}
namespace content {
class RenderFrameHost;
class RenderWidgetHost;
class RenderWidgetHostView;
class RenderWidgetHostViewBase;
class WebContents;
// Returns the |TextInputState.type| from the TextInputManager owned by
// |web_contents|.
ui::TextInputType GetTextInputTypeFromWebContents(WebContents* web_contents);
const ui::mojom::TextInputState* GetTextInputStateFromWebContents(
WebContents* web_contents);
// This method returns true if |view| is registered in the TextInputManager that
// is owned by |web_contents|. If that is the case, the value of |type| will be
// the |TextInputState.type| corresponding to the |view|. Returns false if
// |view| is not registered.
bool GetTextInputTypeForView(WebContents* web_contents,
RenderWidgetHostView* view,
ui::TextInputType* type);
// This method returns the number of RenderWidgetHostViews which are currently
// registered with the TextInputManager that is owned by |web_contents|.
size_t GetRegisteredViewsCountFromTextInputManager(WebContents* web_contents);
// Returns the RWHV corresponding to the frame with a focused <input> within the
// given WebContents.
RenderWidgetHostView* GetActiveViewFromWebContents(WebContents* web_contents);
// This method will send a request for an immediate update on composition range
// from TextInputManager's active widget corresponding to the |web_contents|.
// This function will return false if the request is not successfully sent;
// either due to missing TextInputManager or lack of an active widget.
bool RequestCompositionInfoFromActiveWidget(WebContents* web_contents);
// Returns true if |frame| has a focused editable element.
bool DoesFrameHaveFocusedEditableElement(RenderFrameHost* frame);
// Sends a request to the RenderWidget corresponding to |rwh| to commit the
// given |text|.
void SendImeCommitTextToWidget(
RenderWidgetHost* rwh,
const std::u16string& text,
const std::vector<ui::ImeTextSpan>& ime_text_spans,
const gfx::Range& replacement_range,
int relative_cursor_pos);
// Sends a request to RenderWidget corresponding to |rwh| to set the given
// composition text and update the corresponding IME params.
void SendImeSetCompositionTextToWidget(
RenderWidgetHost* rwh,
const std::u16string& text,
const std::vector<ui::ImeTextSpan>& ime_text_spans,
const gfx::Range& replacement_range,
int selection_start,
int selection_end);
// Triggers the TextInputStateChanged event on the RenderWidget corresponding to
// |rwh|.
void SendTextInputStateChangedToWidget(RenderWidgetHost* rwh,
ui::mojom::TextInputStatePtr state);
// Immediately destroys the RenderWidgetHost corresponding to the local root
// which is identified by the given process ID and RenderFrameHost routing ID.
bool DestroyRenderWidgetHost(int32_t process_id, int32_t local_root_routing_id);
// This class provides the necessary API for accessing the state of and also
// observing the TextInputManager for WebContents.
class TextInputManagerTester {
public:
TextInputManagerTester(WebContents* web_contents);
TextInputManagerTester(const TextInputManagerTester&) = delete;
TextInputManagerTester& operator=(const TextInputManagerTester&) = delete;
virtual ~TextInputManagerTester();
// Sets a callback which is invoked when a RWHV calls UpdateTextInputState
// on the TextInputManager which is being observed.
void SetUpdateTextInputStateCalledCallback(base::RepeatingClosure callback);
// Sets a callback which is invoked when a RWHV calls SelectionBoundsChanged
// on the TextInputManager which is being observed.
void SetOnSelectionBoundsChangedCallback(base::RepeatingClosure callback);
// Sets a callback which is invoked when a RWHV calls
// ImeCompositionRangeChanged on the TextInputManager that is being observed.
void SetOnImeCompositionRangeChangedCallback(base::RepeatingClosure callback);
// Sets a callback which is invoked when a RWHV calls SelectionChanged on the
// TextInputManager which is being observed.
void SetOnTextSelectionChangedCallback(base::RepeatingClosure callback);
// Returns true if there is a focused <input> and populates |type| with
// |TextInputState.type| of the TextInputManager.
bool GetTextInputType(ui::TextInputType* type);
// Returns true if there is a focused <input> and populates |value| with
// |TextInputState.value| of the TextInputManager.
bool GetTextInputValue(std::string* value);
// Returns true if there is a focused editable element and populates
// |vk_policy| with |TextInputState.vk_policy| of the TextInputManager.
bool GetTextInputVkPolicy(ui::mojom::VirtualKeyboardPolicy* vk_policy);
// Returns true if there is a focused editable element and populates
// |last_vk_visibility_request| with
// |TextInputState.last_vk_visibility_request| of the TextInputManager.
bool GetTextInputVkVisibilityRequest(
ui::mojom::VirtualKeyboardVisibilityRequest* last_vk_visibility_request);
// Returns true if there is a focused editable element tapped by the user
// and populates |show_ime_if_needed| with
// |TextInputState.show_ime_if_needed| of the TextInputManager.
bool GetTextInputShowImeIfNeeded(bool* show_ime_if_needed);
// Returns true if there is a focused <input> and populates |length| with the
// length of the selected text range in the focused view.
bool GetCurrentTextSelectionLength(size_t* length);
// This method sets |output| to the last value of composition range length
// reported by a renderer corresponding to WebContents. If no such update have
// been received, the method will leave |output| untouched and returns false.
// Returning true means an update has been received and the value of |output|
// has been updated accordingly.
bool GetLastCompositionRangeLength(uint32_t* output);
// Returns the RenderWidgetHostView with a focused <input> element or nullptr
// if none exists.
const RenderWidgetHostView* GetActiveView();
// Returns the RenderWidgetHostView which has most recently updated any of its
// state (e.g., TextInputState or otherwise).
RenderWidgetHostView* GetUpdatedView();
// Returns true if a call to TextInputManager::UpdateTextInputState has led
// to a change in TextInputState (since the time the observer has been
// created).
bool IsTextInputStateChanged();
private:
// The actual internal observer of the TextInputManager.
class InternalObserver;
std::unique_ptr<InternalObserver> observer_;
};
// TextInputManager Observers
// A base class for observing the TextInputManager owned by the given
// WebContents. Subclasses can observe the TextInputManager for different
// changes. The class wraps a public tester which accepts callbacks that
// are run after specific changes in TextInputManager. Different observers can
// be subclassed from this by providing their specific callback methods.
class TextInputManagerObserverBase {
public:
explicit TextInputManagerObserverBase(content::WebContents* web_contents);
virtual ~TextInputManagerObserverBase();
TextInputManagerObserverBase(const TextInputManagerObserverBase&) = delete;
TextInputManagerObserverBase& operator=(const TextInputManagerObserverBase&) =
delete;
// Wait for derived class's definition of success.
void Wait();
bool success() const { return success_; }
protected:
content::TextInputManagerTester* tester() { return tester_.get(); }
void OnSuccess();
private:
std::unique_ptr<content::TextInputManagerTester> tester_;
bool success_;
base::OnceClosure quit_;
};
// This class observes TextInputManager for changes in |TextInputState.value|.
class TextInputManagerValueObserver : public TextInputManagerObserverBase {
public:
TextInputManagerValueObserver(content::WebContents* web_contents,
const std::string& expected_value);
TextInputManagerValueObserver(const TextInputManagerValueObserver&) = delete;
TextInputManagerValueObserver& operator=(
const TextInputManagerValueObserver&) = delete;
private:
void VerifyValue();
const std::string expected_value_;
};
// This class observes TextInputManager for changes in |TextInputState.type|.
class TextInputManagerTypeObserver : public TextInputManagerObserverBase {
public:
TextInputManagerTypeObserver(content::WebContents* web_contents,
ui::TextInputType expected_type);
TextInputManagerTypeObserver(const TextInputManagerTypeObserver&) = delete;
TextInputManagerTypeObserver& operator=(const TextInputManagerTypeObserver&) =
delete;
private:
void VerifyType();
const ui::TextInputType expected_type_;
};
// This class observes the lifetime of a RenderWidgetHostView.
class TestRenderWidgetHostViewDestructionObserver {
public:
TestRenderWidgetHostViewDestructionObserver(RenderWidgetHostView* view);
TestRenderWidgetHostViewDestructionObserver(
const TestRenderWidgetHostViewDestructionObserver&) = delete;
TestRenderWidgetHostViewDestructionObserver& operator=(
const TestRenderWidgetHostViewDestructionObserver&) = delete;
virtual ~TestRenderWidgetHostViewDestructionObserver();
// Waits for the RWHV which is being observed to get destroyed.
void Wait();
private:
// The actual internal observer of RenderWidgetHostViewBase.
class InternalObserver;
std::unique_ptr<InternalObserver> observer_;
};
// Helper class to create TextInputState structs on the browser side and send it
// to the given RenderWidgetHostView. This class can be used for faking changes
// in TextInputState for testing on the browser side.
class TextInputStateSender {
public:
explicit TextInputStateSender(RenderWidgetHostView* view);
TextInputStateSender(const TextInputStateSender&) = delete;
TextInputStateSender& operator=(const TextInputStateSender&) = delete;
virtual ~TextInputStateSender();
void Send();
void SetFromCurrentState();
// The required setter methods. These setter methods can be used to call
// RenderWidgetHostViewBase::TextInputStateChanged with fake, customized
// TextInputState. Used for unit-testing on the browser side.
void SetType(ui::TextInputType type);
void SetMode(ui::TextInputMode mode);
void SetFlags(int flags);
void SetCanComposeInline(bool can_compose_inline);
void SetShowVirtualKeyboardIfEnabled(bool show_ime_if_needed);
#if defined(USE_AURA)
void SetLastPointerType(ui::EventPointerType last_pointer_type);
#endif
private:
ui::mojom::TextInputStatePtr text_input_state_;
const raw_ptr<RenderWidgetHostViewBase> view_;
};
// This class is intended to observe the InputMethod.
class TestInputMethodObserver {
public:
// static
// Creates and returns a platform specific implementation of an
// InputMethodObserver.
static std::unique_ptr<TestInputMethodObserver> Create(
WebContents* web_contents);
virtual ~TestInputMethodObserver();
virtual ui::TextInputType GetTextInputTypeFromClient() = 0;
virtual void SetOnVirtualKeyboardVisibilityChangedIfEnabledCallback(
const base::RepeatingCallback<void(bool)>& callback) = 0;
protected:
TestInputMethodObserver();
};
#if BUILDFLAG(IS_MAC)
// Helper class to test LocalFrame::GetStringForRange.
class TextInputTestLocalFrame : public FakeLocalFrame {
public:
TextInputTestLocalFrame();
TextInputTestLocalFrame(const TextInputTestLocalFrame&) = delete;
TextInputTestLocalFrame& operator=(const TextInputTestLocalFrame&) = delete;
~TextInputTestLocalFrame() override;
void SetUp(content::RenderFrameHost* render_frame_host);
void WaitForGetStringForRange();
// Sets a callback for the string for range message arriving from the
// renderer. The callback is invoked before that of TextInputClientMac.
void SetStringForRangeCallback(base::RepeatingClosure callback);
std::string GetStringFromRange() { return string_from_range_; }
void SetStringFromRange(std::string string_from_range) {
string_from_range_ = string_from_range;
}
// blink::mojom::LocalFrame:
void GetStringForRange(const gfx::Range& range,
GetStringForRangeCallback callback) override;
private:
base::OnceClosure quit_closure_;
base::RepeatingClosure string_for_range_callback_;
std::string string_from_range_;
mojo::AssociatedRemote<blink::mojom::LocalFrame> local_frame_;
};
// Requests the |tab_view| for the definition of the word identified by the
// given selection range. |range| identifies a word in the focused
// RenderWidgetHost underneath |tab_view| which may be different than the
// RenderWidgetHost corresponding to |tab_view|.
void AskForLookUpDictionaryForRange(RenderWidgetHostView* tab_view,
const gfx::Range& range);
#endif
} // namespace content
#endif // CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_