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https://bitbucket.org/chromiumembedded/cef
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Create 1453 release branch for CEF1.
git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/1453@1184 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
This commit is contained in:
Marshall Greenblatt
291
cef1/libcef/webwidget_host.h
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291
cef1/libcef/webwidget_host.h
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// Copyright (c) 2006-2008 The Chromium 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 CEF_LIBCEF_WEBWIDGET_HOST_H_
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#define CEF_LIBCEF_WEBWIDGET_HOST_H_
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#pragma once
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#include <map>
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#include <vector>
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#include "include/internal/cef_string.h"
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#include "include/internal/cef_types.h"
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#include "include/internal/cef_types_wrappers.h"
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#include "base/basictypes.h"
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#include "base/memory/scoped_ptr.h"
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#include "base/time.h"
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#include "base/timer.h"
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#include "skia/ext/platform_canvas.h"
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#include "third_party/WebKit/Source/Platform/chromium/public/WebRect.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
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#include "third_party/WebKit/Source/WebKit/chromium/public/WebTextInputType.h"
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#include "third_party/skia/include/core/SkRegion.h"
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#include "ui/gfx/native_widget_types.h"
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#include "ui/gfx/rect.h"
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#include "webkit/plugins/npapi/webplugin.h"
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#if defined(OS_WIN)
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#include "ui/base/win/ime_input.h"
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#endif
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#if defined(TOOLKIT_GTK)
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#include <gtk/gtk.h> // NOLINT(build/include_order)
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#endif
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namespace gfx {
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class Rect;
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class Size;
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}
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namespace WebKit {
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class WebWidget;
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class WebWidgetClient;
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class WebKeyboardEvent;
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struct WebScreenInfo;
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}
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#if defined(OS_MACOSX)
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#ifdef __OBJC__
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@class NSEvent;
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#else
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class NSEvent;
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#endif
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#endif
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// This class is a simple NativeView-based host for a WebWidget
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class WebWidgetHost {
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public:
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class PaintDelegate {
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public:
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virtual ~PaintDelegate() {}
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virtual void Paint(bool popup, const std::vector<CefRect>& dirtyRects,
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const void* buffer) =0;
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};
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// The new instance is deleted once the associated NativeView is destroyed.
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// The newly created window should be resized after it is created, using the
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// MoveWindow (or equivalent) function.
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static WebWidgetHost* Create(gfx::NativeView parent_view,
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WebKit::WebWidgetClient* client,
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PaintDelegate* paint_delegate);
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virtual ~WebWidgetHost();
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gfx::NativeView view_handle() const { return view_; }
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WebKit::WebWidget* webwidget() const { return webwidget_; }
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void InvalidateRect(const gfx::Rect& rect);
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void ScrollRect(int dx, int dy, const gfx::Rect& clip_rect);
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// Called for requestAnimationFrame animations.
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void ScheduleAnimation();
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#if defined(OS_WIN)
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void SetCursor(HCURSOR cursor);
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#endif
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#if defined(OS_MACOSX)
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void Paint(SkRegion& update_rgn);
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#else
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void Paint();
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#endif
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bool GetImage(int width, int height, void* buffer);
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void SetSize(int width, int height);
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void GetSize(int& width, int& height);
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skia::PlatformCanvas* canvas() const { return canvas_.get(); }
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WebKit::WebScreenInfo GetScreenInfo();
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WebKit::WebKeyboardEvent GetLastKeyEvent() const { return last_key_event_; }
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void SetLastKeyEvent(WebKit::WebKeyboardEvent keyEvent)
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{ last_key_event_ = keyEvent; }
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void SetTooltipText(const CefString& tooltip_text);
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void SendKeyEvent(cef_key_type_t type, const cef_key_info_t& keyInfo,
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int modifiers);
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void SendMouseClickEvent(int x, int y, cef_mouse_button_type_t type,
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bool mouseUp, int clickCount);
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void SendMouseMoveEvent(int x, int y, bool mouseLeave);
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void SendMouseWheelEvent(int x, int y, int deltaX, int deltaY);
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void SendFocusEvent(bool setFocus);
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void SendCaptureLostEvent();
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// Manage windowed plugins when window rendering is disabled.
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bool HasWindowedPlugins() { return !plugin_map_.empty(); }
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void AddWindowedPlugin(gfx::PluginWindowHandle handle);
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void RemoveWindowedPlugin(gfx::PluginWindowHandle handle);
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void MoveWindowedPlugin(const webkit::npapi::WebPluginGeometry& geometry);
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gfx::PluginWindowHandle GetWindowedPluginAt(int x, int y);
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void SetFrameRate(int frames_per_second);
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virtual bool IsTransparent() { return false; }
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void set_popup(bool popup) { popup_ = popup; }
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bool popup() { return popup_; }
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PaintDelegate* paint_delegate() { return paint_delegate_; }
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protected:
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WebWidgetHost();
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// Update the region that will be painted to the canvas by WebKit the next
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// time that Paint() is called.
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void UpdatePaintRect(const gfx::Rect& rect);
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void PaintRect(const gfx::Rect& rect);
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// Trigger the OS to invalidate/repaint the window.
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void InvalidateWindow();
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void InvalidateWindowRect(const gfx::Rect& rect);
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// When window rendering is enabled this method invalidates the client area to
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// trigger repaint via the OS. When window rendering is disabled this method
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// is used to generate CefRenderHandler::OnPaint() calls.
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void ScheduleTimer();
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void DoTimer();
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#if defined(OS_WIN)
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// Per-class wndproc. Returns true if the event should be swallowed.
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virtual bool WndProc(UINT message, WPARAM wparam, LPARAM lparam);
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virtual void MouseEvent(UINT message, WPARAM wparam, LPARAM lparam);
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void WheelEvent(WPARAM wparam, LPARAM lparam);
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virtual void KeyEvent(UINT message, WPARAM wparam, LPARAM lparam);
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void CaptureLostEvent();
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void SetFocus(bool enable);
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void OnNotify(WPARAM wparam, NMHDR* header);
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static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
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LRESULT OnImeSetContext(UINT message, WPARAM wparam, LPARAM lparam,
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BOOL& handled);
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LRESULT OnImeStartComposition(UINT message, WPARAM wparam, LPARAM lparam,
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BOOL& handled);
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LRESULT OnImeComposition(UINT message, WPARAM wparam, LPARAM lparam,
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BOOL& handled);
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LRESULT OnImeEndComposition(UINT message, WPARAM wparam, LPARAM lparam,
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BOOL& handled);
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void OnInputLangChange(DWORD character_set, HKL input_language_id);
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void UpdateImeInputState();
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void ToggleImeTimer();
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#elif defined(OS_MACOSX)
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// These need to be called from a non-subclass, so they need to be public.
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public:
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virtual void MouseEvent(NSEvent* event);
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void WheelEvent(NSEvent* event);
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virtual void KeyEvent(NSEvent* event);
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virtual void SetFocus(bool enable);
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protected:
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#elif defined(TOOLKIT_GTK)
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public:
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// ---------------------------------------------------------------------------
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// This is needed on Linux because the GtkWidget creation is the same between
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// both web view hosts and web widget hosts. The Windows code manages this by
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// reusing the WndProc function (static, above). However, GTK doesn't use a
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// single big callback function like that so we have a static function that
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// sets up a GtkWidget correctly.
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// parent: a GtkBox to pack the new widget at the end of
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// host: a pointer to a WebWidgetHost (or subclass thereof)
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// ---------------------------------------------------------------------------
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static gfx::NativeView CreateWidget(gfx::NativeView parent_view,
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WebWidgetHost* host);
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virtual void KeyEvent(GdkEventKey* event);
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#endif
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#if defined(OS_WIN)
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void TrackMouseLeave(bool enable);
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#endif
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void set_painting(bool value) {
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painting_ = value;
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}
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void EnsureTooltip();
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void ResetTooltip();
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gfx::NativeView view_;
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// The paint delegate is used instead of the view when window rendering is
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// disabled.
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PaintDelegate* paint_delegate_;
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WebKit::WebWidget* webwidget_;
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scoped_ptr<skia::PlatformCanvas> canvas_;
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int canvas_w_;
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int canvas_h_;
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// True if this widget is a popup widget.
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bool popup_;
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// Specifies the portion of the webwidget that needs painting.
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// TODO(cef): Update the Linux port to use regions instead of rectangles.
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#if defined(OS_WIN) || defined(OS_MACOSX)
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SkRegion paint_rgn_;
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#else
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gfx::Rect paint_rect_;
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#endif
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base::OneShotTimer<WebWidgetHost> timer_;
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base::TimeTicks timer_last_;
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bool timer_executing_;
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bool timer_wanted_;
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int64 frame_delay_;
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#if defined(OS_WIN)
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// Used to call UpdateImeInputState() while IME is active.
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base::RepeatingTimer<WebWidgetHost> ime_timer_;
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#endif
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// The map of windowed plugins that need to be drawn when window rendering is
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// disabled.
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typedef std::map<gfx::PluginWindowHandle, webkit::npapi::WebPluginGeometry>
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PluginMap;
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PluginMap plugin_map_;
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#if defined(OS_WIN)
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bool track_mouse_leave_;
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std::wstring tooltip_text_;
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gfx::NativeView tooltip_view_;
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bool tooltip_showing_;
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// Wrapper class for IME input.
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ui::ImeInput ime_input_;
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// Represents whether or not this browser process is receiving status messages
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// about the focused edit control from a renderer process.
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bool ime_notification_;
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// Stores the current text input type.
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WebKit::WebTextInputType text_input_type_;
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// Stores the current caret bounds of input focus.
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WebKit::WebRect caret_bounds_;
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#endif // OS_WIN
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#if defined(OS_MACOSX)
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std::string tooltip_text_;
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int mouse_modifiers_;
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WebKit::WebMouseEvent::Button mouse_button_down_;
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#endif
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WebKit::WebKeyboardEvent last_key_event_;
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bool painting_;
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bool layouting_;
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static const int kDefaultFrameRate;
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static const int kMaxFrameRate;
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};
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#endif // CEF_LIBCEF_WEBWIDGET_HOST_H_
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