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efe7683311
Originally font change notification was handled by forwarding WM_FONTCHANGE to the Flutter HWND, to avoid adding new API surface, but that's not a good solution in a multi-window scenario, and it would require a completely different solution for UWP. It also requires non-obvious plumbing in the runner. This replaces that with an explicit API, so that there's a clean and obvious way for the runner to trigger this event.
89 lines
2.6 KiB
C++
89 lines
2.6 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WINDOW_H_
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#define FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WINDOW_H_
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#include <windowsx.h>
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#include <iostream>
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#include <string>
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#include <vector>
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#include "flutter/shell/platform/embedder/embedder.h"
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#include "flutter/shell/platform/windows/flutter_windows_view.h"
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#include "flutter/shell/platform/windows/win32_window.h"
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#include "flutter/shell/platform/windows/window_binding_handler.h"
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namespace flutter {
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// A win32 flutter child window used as implementatin for flutter view. In the
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// future, there will likely be a CoreWindow-based FlutterWindow as well. At
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// the point may make sense to dependency inject the native window rather than
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// inherit.
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class Win32FlutterWindow : public Win32Window, public WindowBindingHandler {
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public:
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// Create flutter Window for use as child window
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Win32FlutterWindow(int width, int height);
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virtual ~Win32FlutterWindow();
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// |Win32Window|
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void OnDpiScale(unsigned int dpi) override;
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// |Win32Window|
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void OnResize(unsigned int width, unsigned int height) override;
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// |Win32Window|
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void OnPointerMove(double x, double y) override;
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// |Win32Window|
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void OnPointerDown(double x, double y, UINT button) override;
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// |Win32Window|
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void OnPointerUp(double x, double y, UINT button) override;
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// |Win32Window|
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void OnPointerLeave() override;
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// |Win32Window|
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void OnSetCursor() override;
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// |Win32Window|
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void OnText(const std::u16string& text) override;
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// |Win32Window|
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void OnKey(int key, int scancode, int action, char32_t character) override;
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// |Win32Window|
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void OnScroll(double delta_x, double delta_y) override;
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// |FlutterWindowBindingHandler|
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void SetView(WindowBindingHandlerDelegate* view) override;
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// |FlutterWindowBindingHandler|
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WindowsRenderTarget GetRenderTarget() override;
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// |FlutterWindowBindingHandler|
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float GetDpiScale() override;
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// |FlutterWindowBindingHandler|
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PhysicalWindowBounds GetPhysicalWindowBounds() override;
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// |FlutterWindowBindingHandler|
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void UpdateFlutterCursor(const std::string& cursor_name) override;
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private:
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// A pointer to a FlutterWindowsView that can be used to update engine
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// windowing and input state.
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WindowBindingHandlerDelegate* binding_handler_delegate_;
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// The last cursor set by Flutter. Defaults to the arrow cursor.
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HCURSOR current_cursor_;
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};
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} // namespace flutter
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#endif // FLUTTER_SHELL_PLATFORM_WINDOWS_FLUTTER_WINDOW_H_
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